';
if (place.appendChild) place.appendChild(wrapper); else place(wrapper);
// I've never seen more elegant code in my life.
var inputDiv = wrapper.firstChild, input = inputDiv.firstChild,
scroller = wrapper.lastChild, code = scroller.firstChild,
- measure = code.firstChild, mover = measure.nextSibling,
- gutter = mover.firstChild, gutterText = gutter.firstChild,
- lineSpace = gutter.nextSibling.firstChild,
- cursor = lineSpace.firstChild, lineDiv = cursor.nextSibling;
- if (options.tabindex != null) input.tabindex = options.tabindex;
+ mover = code.firstChild, gutter = mover.firstChild, gutterText = gutter.firstChild,
+ lineSpace = gutter.nextSibling.firstChild, measure = lineSpace.firstChild,
+ cursor = measure.nextSibling, widthForcer = cursor.nextSibling,
+ selectionDiv = widthForcer.nextSibling, lineDiv = selectionDiv.nextSibling,
+ scrollbar = inputDiv.nextSibling, scrollbarInner = scrollbar.firstChild;
+ themeChanged(); keyMapChanged();
+ // Needed to hide big blue blinking cursor on Mobile Safari
+ if (ios) input.style.width = "0px";
+ if (!webkit) scroller.draggable = true;
+ lineSpace.style.outline = "none";
+ if (options.tabindex != null) input.tabIndex = options.tabindex;
+ if (options.autofocus) focusInput();
if (!options.gutter && !options.lineNumbers) gutter.style.display = "none";
+ // Needed to handle Tab key in KHTML
+ if (khtml) inputDiv.style.height = "1px", inputDiv.style.position = "absolute";
+
+ // Check for OS X >= 10.7. If so, we need to force a width on the scrollbar, and
+ // make it overlap the content. (But we only do this if the scrollbar doesn't already
+ // have a natural width. If the mouse is plugged in or the user sets the system pref
+ // to always show scrollbars, the scrollbar shouldn't overlap.)
+ if (mac_geLion) {
+ scrollbar.className += (overlapScrollbars() ? " cm-sb-overlap" : " cm-sb-nonoverlap");
+ } else if (ie_lt8) {
+ // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
+ scrollbar.className += " cm-sb-ie7";
+ }
// Check for problem with IE innerHTML not working when we have a
// P (or similar) parent node.
try { stringWidth("x"); }
catch (e) {
- if (e.message.match(/unknown runtime/i))
+ if (e.message.match(/runtime/i))
e = new Error("A CodeMirror inside a P-style element does not work in Internet Explorer. (innerHTML bug)");
throw e;
}
@@ -55,34 +79,32 @@ var CodeMirror = (function() {
// Delayed object wrap timeouts, making sure only one is active. blinker holds an interval.
var poll = new Delayed(), highlight = new Delayed(), blinker;
- // mode holds a mode API object. lines an array of Line objects
- // (see Line constructor), work an array of lines that should be
- // parsed, and history the undo history (instance of History
- // constructor).
- var mode, lines = [new Line("")], work, focused;
+ // mode holds a mode API object. doc is the tree of Line objects,
+ // work an array of lines that should be parsed, and history the
+ // undo history (instance of History constructor).
+ var mode, doc = new BranchChunk([new LeafChunk([new Line("")])]), work, focused;
loadMode();
// The selection. These are always maintained to point at valid
// positions. Inverted is used to remember that the user is
// selecting bottom-to-top.
var sel = {from: {line: 0, ch: 0}, to: {line: 0, ch: 0}, inverted: false};
// Selection-related flags. shiftSelecting obviously tracks
- // whether the user is holding shift. reducedSelection is a hack
- // to get around the fact that we can't create inverted
- // selections. See below.
- var shiftSelecting, reducedSelection, lastClick, lastDoubleClick, draggingText;
+ // whether the user is holding shift.
+ var shiftSelecting, lastClick, lastDoubleClick, lastScrollTop = 0, lastScrollLeft = 0, draggingText,
+ overwrite = false, suppressEdits = false;
// Variables used by startOperation/endOperation to track what
// happened during the operation.
- var updateInput, changes, textChanged, selectionChanged, leaveInputAlone, gutterDirty;
+ var updateInput, userSelChange, changes, textChanged, selectionChanged, leaveInputAlone,
+ gutterDirty, callbacks;
// Current visible range (may be bigger than the view window).
- var showingFrom = 0, showingTo = 0, lastHeight = 0, curKeyId = null;
- // editing will hold an object describing the things we put in the
- // textarea, to help figure out whether something changed.
- // bracketHighlighted is used to remember that a backet has been
+ var displayOffset = 0, showingFrom = 0, showingTo = 0, lastSizeC = 0;
+ // bracketHighlighted is used to remember that a bracket has been
// marked.
- var editing, bracketHighlighted;
+ var bracketHighlighted;
// Tracks the maximum line length so that the horizontal scrollbar
// can be kept static when scrolling.
- var maxLine = "", maxWidth;
+ var maxLine = "", updateMaxLine = false, maxLineChanged = true;
+ var tabCache = {};
// Initialize the content.
operation(function(){setValue(options.value || ""); updateInput = false;})();
@@ -91,38 +113,53 @@ var CodeMirror = (function() {
// Register our event handlers.
connect(scroller, "mousedown", operation(onMouseDown));
connect(scroller, "dblclick", operation(onDoubleClick));
- connect(lineSpace, "dragstart", onDragStart);
+ connect(lineSpace, "selectstart", e_preventDefault);
// Gecko browsers fire contextmenu *after* opening the menu, at
// which point we can't mess with it anymore. Context menu is
// handled in onMouseDown for Gecko.
if (!gecko) connect(scroller, "contextmenu", onContextMenu);
- connect(scroller, "scroll", function() {
- updateDisplay([]);
- if (options.fixedGutter) gutter.style.left = scroller.scrollLeft + "px";
- if (options.onScroll) options.onScroll(instance);
- });
+ connect(scroller, "scroll", onScroll);
+ connect(scrollbar, "scroll", onScroll);
+ connect(scrollbar, "mousedown", function() {setTimeout(focusInput, 0);});
+ connect(scroller, "mousewheel", onMouseWheel);
+ connect(scroller, "DOMMouseScroll", onMouseWheel);
connect(window, "resize", function() {updateDisplay(true);});
connect(input, "keyup", operation(onKeyUp));
- connect(input, "input", function() {fastPoll(curKeyId);});
+ connect(input, "input", fastPoll);
connect(input, "keydown", operation(onKeyDown));
connect(input, "keypress", operation(onKeyPress));
connect(input, "focus", onFocus);
connect(input, "blur", onBlur);
- connect(scroller, "dragenter", e_stop);
- connect(scroller, "dragover", e_stop);
- connect(scroller, "drop", operation(onDrop));
+ if (options.dragDrop) {
+ connect(scroller, "dragstart", onDragStart);
+ function drag_(e) {
+ if (options.onDragEvent && options.onDragEvent(instance, addStop(e))) return;
+ e_stop(e);
+ }
+ connect(scroller, "dragenter", drag_);
+ connect(scroller, "dragover", drag_);
+ connect(scroller, "drop", operation(onDrop));
+ }
connect(scroller, "paste", function(){focusInput(); fastPoll();});
- connect(input, "paste", function(){fastPoll();});
- connect(input, "cut", function(){fastPoll();});
+ connect(input, "paste", fastPoll);
+ connect(input, "cut", operation(function(){
+ if (!options.readOnly) replaceSelection("");
+ }));
+
+ // Needed to handle Tab key in KHTML
+ if (khtml) connect(code, "mouseup", function() {
+ if (document.activeElement == input) input.blur();
+ focusInput();
+ });
// IE throws unspecified error in certain cases, when
// trying to access activeElement before onload
- var hasFocus; try { hasFocus = (targetDocument.activeElement == input); } catch(e) { }
- if (hasFocus) setTimeout(onFocus, 20);
+ var hasFocus; try { hasFocus = (document.activeElement == input); } catch(e) { }
+ if (hasFocus || options.autofocus) setTimeout(onFocus, 20);
else onBlur();
- function isLine(l) {return l >= 0 && l < lines.length;}
+ function isLine(l) {return l >= 0 && l < doc.size;}
// The instance object that we'll return. Mostly calls out to
// local functions in the CodeMirror function. Some do some extra
// range checking and/or clipping. operation is used to wrap the
@@ -133,47 +170,74 @@ var CodeMirror = (function() {
setValue: operation(setValue),
getSelection: getSelection,
replaceSelection: operation(replaceSelection),
- focus: function(){focusInput(); onFocus(); fastPoll();},
+ focus: function(){window.focus(); focusInput(); onFocus(); fastPoll();},
setOption: function(option, value) {
+ var oldVal = options[option];
options[option] = value;
- if (option == "lineNumbers" || option == "gutter" || option == "firstLineNumber")
- operation(gutterChanged)();
- else if (option == "mode" || option == "indentUnit") loadMode();
- else if (option == "readOnly" && value == "nocursor") input.blur();
- else if (option == "theme") scroller.className = scroller.className.replace(/cm-s-\w+/, "cm-s-" + value);
+ if (option == "mode" || option == "indentUnit") loadMode();
+ else if (option == "readOnly" && value == "nocursor") {onBlur(); input.blur();}
+ else if (option == "readOnly" && !value) {resetInput(true);}
+ else if (option == "theme") themeChanged();
+ else if (option == "lineWrapping" && oldVal != value) operation(wrappingChanged)();
+ else if (option == "tabSize") updateDisplay(true);
+ else if (option == "keyMap") keyMapChanged();
+ if (option == "lineNumbers" || option == "gutter" || option == "firstLineNumber" || option == "theme") {
+ gutterChanged();
+ updateDisplay(true);
+ }
},
getOption: function(option) {return options[option];},
undo: operation(undo),
redo: operation(redo),
indentLine: operation(function(n, dir) {
- if (isLine(n)) indentLine(n, dir == null ? "smart" : dir ? "add" : "subtract");
+ if (typeof dir != "string") {
+ if (dir == null) dir = options.smartIndent ? "smart" : "prev";
+ else dir = dir ? "add" : "subtract";
+ }
+ if (isLine(n)) indentLine(n, dir);
}),
+ indentSelection: operation(indentSelected),
historySize: function() {return {undo: history.done.length, redo: history.undone.length};},
clearHistory: function() {history = new History();},
matchBrackets: operation(function(){matchBrackets(true);}),
- getTokenAt: function(pos) {
+ getTokenAt: operation(function(pos) {
pos = clipPos(pos);
- return lines[pos.line].getTokenAt(mode, getStateBefore(pos.line), pos.ch);
- },
+ return getLine(pos.line).getTokenAt(mode, getStateBefore(pos.line), pos.ch);
+ }),
getStateAfter: function(line) {
- line = clipLine(line == null ? lines.length - 1: line);
+ line = clipLine(line == null ? doc.size - 1: line);
return getStateBefore(line + 1);
},
- cursorCoords: function(start){
+ cursorCoords: function(start, mode) {
if (start == null) start = sel.inverted;
- return pageCoords(start ? sel.from : sel.to);
+ return this.charCoords(start ? sel.from : sel.to, mode);
},
- charCoords: function(pos){return pageCoords(clipPos(pos));},
+ charCoords: function(pos, mode) {
+ pos = clipPos(pos);
+ if (mode == "local") return localCoords(pos, false);
+ if (mode == "div") return localCoords(pos, true);
+ return pageCoords(pos);
+ },
coordsChar: function(coords) {
var off = eltOffset(lineSpace);
- var line = clipLine(Math.min(lines.length - 1, showingFrom + Math.floor((coords.y - off.top) / lineHeight())));
- return clipPos({line: line, ch: charFromX(clipLine(line), coords.x - off.left)});
+ return coordsChar(coords.x - off.left, coords.y - off.top);
},
- getSearchCursor: function(query, pos, caseFold) {return new SearchCursor(query, pos, caseFold);},
markText: operation(markText),
+ setBookmark: setBookmark,
+ findMarksAt: findMarksAt,
setMarker: operation(addGutterMarker),
clearMarker: operation(removeGutterMarker),
setLineClass: operation(setLineClass),
+ hideLine: operation(function(h) {return setLineHidden(h, true);}),
+ showLine: operation(function(h) {return setLineHidden(h, false);}),
+ onDeleteLine: function(line, f) {
+ if (typeof line == "number") {
+ if (!isLine(line)) return null;
+ line = getLine(line);
+ }
+ (line.handlers || (line.handlers = [])).push(f);
+ return line;
+ },
lineInfo: lineInfo,
addWidget: function(pos, node, scroll, vert, horiz) {
pos = localCoords(clipPos(pos));
@@ -182,7 +246,7 @@ var CodeMirror = (function() {
code.appendChild(node);
if (vert == "over") top = pos.y;
else if (vert == "near") {
- var vspace = Math.max(scroller.offsetHeight, lines.length * lineHeight()),
+ var vspace = Math.max(scroller.offsetHeight, doc.height * textHeight()),
hspace = Math.max(code.clientWidth, lineSpace.clientWidth) - paddingLeft();
if (pos.yBot + node.offsetHeight > vspace && pos.y > node.offsetHeight)
top = pos.y - node.offsetHeight;
@@ -203,20 +267,24 @@ var CodeMirror = (function() {
scrollIntoView(left, top, left + node.offsetWidth, top + node.offsetHeight);
},
- lineCount: function() {return lines.length;},
+ lineCount: function() {return doc.size;},
+ clipPos: clipPos,
getCursor: function(start) {
if (start == null) start = sel.inverted;
return copyPos(start ? sel.from : sel.to);
},
somethingSelected: function() {return !posEq(sel.from, sel.to);},
- setCursor: operation(function(line, ch) {
- if (ch == null && typeof line.line == "number") setCursor(line.line, line.ch);
- else setCursor(line, ch);
+ setCursor: operation(function(line, ch, user) {
+ if (ch == null && typeof line.line == "number") setCursor(line.line, line.ch, user);
+ else setCursor(line, ch, user);
}),
- setSelection: operation(function(from, to) {setSelection(clipPos(from), clipPos(to || from));}),
- getLine: function(line) {if (isLine(line)) return lines[line].text;},
+ setSelection: operation(function(from, to, user) {
+ (user ? setSelectionUser : setSelection)(clipPos(from), clipPos(to || from));
+ }),
+ getLine: function(line) {if (isLine(line)) return getLine(line).text;},
+ getLineHandle: function(line) {if (isLine(line)) return getLine(line);},
setLine: operation(function(line, text) {
- if (isLine(line)) replaceRange(text, {line: line, ch: 0}, {line: line, ch: lines[line].text.length});
+ if (isLine(line)) replaceRange(text, {line: line, ch: 0}, {line: line, ch: getLine(line).text.length});
}),
removeLine: operation(function(line) {
if (isLine(line)) replaceRange("", {line: line, ch: 0}, clipPos({line: line+1, ch: 0}));
@@ -224,44 +292,99 @@ var CodeMirror = (function() {
replaceRange: operation(replaceRange),
getRange: function(from, to) {return getRange(clipPos(from), clipPos(to));},
- coordsFromIndex: function(index) {
- var total = lines.length, pos = 0, line, ch, len;
-
- for (line = 0; line < total; line++) {
- len = lines[line].text.length + 1;
- if (pos + len > index) { ch = index - pos; break; }
- pos += len;
+ triggerOnKeyDown: operation(onKeyDown),
+ execCommand: function(cmd) {return commands[cmd](instance);},
+ // Stuff used by commands, probably not much use to outside code.
+ moveH: operation(moveH),
+ deleteH: operation(deleteH),
+ moveV: operation(moveV),
+ toggleOverwrite: function() {
+ if(overwrite){
+ overwrite = false;
+ cursor.className = cursor.className.replace(" CodeMirror-overwrite", "");
+ } else {
+ overwrite = true;
+ cursor.className += " CodeMirror-overwrite";
}
- return clipPos({line: line, ch: ch});
+ },
+
+ posFromIndex: function(off) {
+ var lineNo = 0, ch;
+ doc.iter(0, doc.size, function(line) {
+ var sz = line.text.length + 1;
+ if (sz > off) { ch = off; return true; }
+ off -= sz;
+ ++lineNo;
+ });
+ return clipPos({line: lineNo, ch: ch});
+ },
+ indexFromPos: function (coords) {
+ if (coords.line < 0 || coords.ch < 0) return 0;
+ var index = coords.ch;
+ doc.iter(0, coords.line, function (line) {
+ index += line.text.length + 1;
+ });
+ return index;
+ },
+ scrollTo: function(x, y) {
+ if (x != null) scroller.scrollLeft = x;
+ if (y != null) scrollbar.scrollTop = y;
+ updateDisplay([]);
+ },
+ getScrollInfo: function() {
+ return {x: scroller.scrollLeft, y: scrollbar.scrollTop,
+ height: scrollbar.scrollHeight, width: scroller.scrollWidth};
},
operation: function(f){return operation(f)();},
- refresh: function(){updateDisplay(true);},
+ compoundChange: function(f){return compoundChange(f);},
+ refresh: function(){
+ updateDisplay(true);
+ if (scrollbar.scrollHeight > lastScrollTop)
+ scrollbar.scrollTop = lastScrollTop;
+ },
getInputField: function(){return input;},
getWrapperElement: function(){return wrapper;},
getScrollerElement: function(){return scroller;},
getGutterElement: function(){return gutter;}
};
+ function getLine(n) { return getLineAt(doc, n); }
+ function updateLineHeight(line, height) {
+ gutterDirty = true;
+ var diff = height - line.height;
+ for (var n = line; n; n = n.parent) n.height += diff;
+ }
+
function setValue(code) {
var top = {line: 0, ch: 0};
- updateLines(top, {line: lines.length - 1, ch: lines[lines.length-1].text.length},
+ updateLines(top, {line: doc.size - 1, ch: getLine(doc.size-1).text.length},
splitLines(code), top, top);
updateInput = true;
}
- function getValue(code) {
+ function getValue() {
var text = [];
- for (var i = 0, l = lines.length; i < l; ++i)
- text.push(lines[i].text);
+ doc.iter(0, doc.size, function(line) { text.push(line.text); });
return text.join("\n");
}
+ function onScroll(e) {
+ if (lastScrollTop != scrollbar.scrollTop || lastScrollLeft != scroller.scrollLeft) {
+ lastScrollTop = scrollbar.scrollTop;
+ lastScrollLeft = scroller.scrollLeft;
+ updateDisplay([]);
+ if (options.fixedGutter) gutter.style.left = scroller.scrollLeft + "px";
+ if (options.onScroll) options.onScroll(instance);
+ }
+ }
+
function onMouseDown(e) {
+ setShift(e_prop(e, "shiftKey"));
// Check whether this is a click in a widget
for (var n = e_target(e); n != wrapper; n = n.parentNode)
if (n.parentNode == code && n != mover) return;
- // First, see if this is a click in the gutter
+ // See if this is a click in the gutter
for (var n = e_target(e); n != wrapper; n = n.parentNode)
if (n.parentNode == gutterText) {
if (options.onGutterClick)
@@ -277,6 +400,8 @@ var CodeMirror = (function() {
return;
case 2:
if (start) setCursor(start.line, start.ch, true);
+ setTimeout(focusInput, 20);
+ e_preventDefault(e);
return;
}
// For button 1, if it was clicked inside the editor
@@ -287,29 +412,36 @@ var CodeMirror = (function() {
if (!focused) onFocus();
var now = +new Date;
- if (lastDoubleClick > now - 400) {
+ if (lastDoubleClick && lastDoubleClick.time > now - 400 && posEq(lastDoubleClick.pos, start)) {
e_preventDefault(e);
+ setTimeout(focusInput, 20);
return selectLine(start.line);
- } else if (lastClick > now - 400) {
- lastDoubleClick = now;
+ } else if (lastClick && lastClick.time > now - 400 && posEq(lastClick.pos, start)) {
+ lastDoubleClick = {time: now, pos: start};
e_preventDefault(e);
return selectWordAt(start);
- } else { lastClick = now; }
+ } else { lastClick = {time: now, pos: start}; }
var last = start, going;
- if (dragAndDrop && !posEq(sel.from, sel.to) &&
+ if (options.dragDrop && dragAndDrop && !options.readOnly && !posEq(sel.from, sel.to) &&
!posLess(start, sel.from) && !posLess(sel.to, start)) {
// Let the drag handler handle this.
- var up = connect(targetDocument, "mouseup", operation(function(e2) {
+ if (webkit) scroller.draggable = true;
+ function dragEnd(e2) {
+ if (webkit) scroller.draggable = false;
draggingText = false;
- up();
+ up(); drop();
if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
e_preventDefault(e2);
setCursor(start.line, start.ch, true);
focusInput();
}
- }), true);
+ }
+ var up = connect(document, "mouseup", operation(dragEnd), true);
+ var drop = connect(scroller, "drop", operation(dragEnd), true);
draggingText = true;
+ // IE's approach to draggable
+ if (scroller.dragDrop) scroller.dragDrop();
return;
}
e_preventDefault(e);
@@ -328,12 +460,7 @@ var CodeMirror = (function() {
}
}
- var move = connect(targetDocument, "mousemove", operation(function(e) {
- clearTimeout(going);
- e_preventDefault(e);
- extend(e);
- }), true);
- var up = connect(targetDocument, "mouseup", operation(function(e) {
+ function done(e) {
clearTimeout(going);
var cur = posFromMouse(e);
if (cur) setSelectionUser(start, cur);
@@ -341,16 +468,26 @@ var CodeMirror = (function() {
focusInput();
updateInput = true;
move(); up();
+ }
+ var move = connect(document, "mousemove", operation(function(e) {
+ clearTimeout(going);
+ e_preventDefault(e);
+ if (!ie && !e_button(e)) done(e);
+ else extend(e);
}), true);
+ var up = connect(document, "mouseup", operation(done), true);
}
function onDoubleClick(e) {
+ for (var n = e_target(e); n != wrapper; n = n.parentNode)
+ if (n.parentNode == gutterText) return e_preventDefault(e);
var start = posFromMouse(e);
if (!start) return;
- lastDoubleClick = +new Date;
+ lastDoubleClick = {time: +new Date, pos: start};
e_preventDefault(e);
selectWordAt(start);
}
function onDrop(e) {
+ if (options.onDragEvent && options.onDragEvent(instance, addStop(e))) return;
e.preventDefault();
var pos = posFromMouse(e, true), files = e.dataTransfer.files;
if (!pos || options.readOnly) return;
@@ -360,102 +497,147 @@ var CodeMirror = (function() {
reader.onload = function() {
text[i] = reader.result;
if (++read == n) {
- pos = clipPos(pos);
- var end = replaceRange(text.join(""), pos, pos);
- setSelectionUser(pos, end);
- }
+ pos = clipPos(pos);
+ operation(function() {
+ var end = replaceRange(text.join(""), pos, pos);
+ setSelectionUser(pos, end);
+ })();
+ }
};
reader.readAsText(file);
}
var n = files.length, text = Array(n), read = 0;
for (var i = 0; i < n; ++i) loadFile(files[i], i);
- }
- else {
+ } else {
+ // Don't do a replace if the drop happened inside of the selected text.
+ if (draggingText && !(posLess(pos, sel.from) || posLess(sel.to, pos))) return;
try {
var text = e.dataTransfer.getData("Text");
if (text) {
- var end = replaceRange(text, pos, pos);
- var curFrom = sel.from, curTo = sel.to;
- setSelectionUser(pos, end);
- if (draggingText) replaceRange("", curFrom, curTo);
- focusInput();
- }
+ compoundChange(function() {
+ var curFrom = sel.from, curTo = sel.to;
+ setSelectionUser(pos, pos);
+ if (draggingText) replaceRange("", curFrom, curTo);
+ replaceSelection(text);
+ focusInput();
+ });
+ }
}
catch(e){}
}
}
function onDragStart(e) {
var txt = getSelection();
- // This will reset escapeElement
- htmlEscape(txt);
- e.dataTransfer.setDragImage(escapeElement, 0, 0);
e.dataTransfer.setData("Text", txt);
+
+ // Use dummy image instead of default browsers image.
+ if (gecko || chrome || opera) {
+ var img = document.createElement('img');
+ img.scr = 'data:image/gif;base64,R0lGODdhAgACAIAAAAAAAP///ywAAAAAAgACAAACAoRRADs='; //1x1 image
+ e.dataTransfer.setDragImage(img, 0, 0);
+ }
}
+
+ function doHandleBinding(bound, dropShift) {
+ if (typeof bound == "string") {
+ bound = commands[bound];
+ if (!bound) return false;
+ }
+ var prevShift = shiftSelecting;
+ try {
+ if (options.readOnly) suppressEdits = true;
+ if (dropShift) shiftSelecting = null;
+ bound(instance);
+ } catch(e) {
+ if (e != Pass) throw e;
+ return false;
+ } finally {
+ shiftSelecting = prevShift;
+ suppressEdits = false;
+ }
+ return true;
+ }
+ function handleKeyBinding(e) {
+ // Handle auto keymap transitions
+ var startMap = getKeyMap(options.keyMap), next = startMap.auto;
+ clearTimeout(maybeTransition);
+ if (next && !isModifierKey(e)) maybeTransition = setTimeout(function() {
+ if (getKeyMap(options.keyMap) == startMap) {
+ options.keyMap = (next.call ? next.call(null, instance) : next);
+ }
+ }, 50);
+
+ var name = keyNames[e_prop(e, "keyCode")], handled = false;
+ if (name == null || e.altGraphKey) return false;
+ if (e_prop(e, "altKey")) name = "Alt-" + name;
+ if (e_prop(e, "ctrlKey")) name = "Ctrl-" + name;
+ if (e_prop(e, "metaKey")) name = "Cmd-" + name;
+
+ var stopped = false;
+ function stop() { stopped = true; }
+
+ if (e_prop(e, "shiftKey")) {
+ handled = lookupKey("Shift-" + name, options.extraKeys, options.keyMap,
+ function(b) {return doHandleBinding(b, true);}, stop)
+ || lookupKey(name, options.extraKeys, options.keyMap, function(b) {
+ if (typeof b == "string" && /^go[A-Z]/.test(b)) return doHandleBinding(b);
+ }, stop);
+ } else {
+ handled = lookupKey(name, options.extraKeys, options.keyMap, doHandleBinding, stop);
+ }
+ if (stopped) handled = false;
+ if (handled) {
+ e_preventDefault(e);
+ restartBlink();
+ if (ie) { e.oldKeyCode = e.keyCode; e.keyCode = 0; }
+ }
+ return handled;
+ }
+ function handleCharBinding(e, ch) {
+ var handled = lookupKey("'" + ch + "'", options.extraKeys,
+ options.keyMap, function(b) { return doHandleBinding(b, true); });
+ if (handled) {
+ e_preventDefault(e);
+ restartBlink();
+ }
+ return handled;
+ }
+
+ var lastStoppedKey = null, maybeTransition;
function onKeyDown(e) {
if (!focused) onFocus();
-
- var code = e.keyCode;
+ if (ie && e.keyCode == 27) { e.returnValue = false; }
+ if (pollingFast) { if (readInput()) pollingFast = false; }
+ if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
+ var code = e_prop(e, "keyCode");
// IE does strange things with escape.
- if (ie && code == 27) { e.returnValue = false; }
- // Tries to detect ctrl on non-mac, cmd on mac.
- var mod = (mac ? e.metaKey : e.ctrlKey) && !e.altKey, anyMod = e.ctrlKey || e.altKey || e.metaKey;
- if (code == 16 || e.shiftKey) shiftSelecting = shiftSelecting || (sel.inverted ? sel.to : sel.from);
- else shiftSelecting = null;
+ setShift(code == 16 || e_prop(e, "shiftKey"));
// First give onKeyEvent option a chance to handle this.
- if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
-
- if (code == 33 || code == 34) {scrollPage(code == 34); return e_preventDefault(e);} // page up/down
- if (mod && ((code == 36 || code == 35) || // ctrl-home/end
- mac && (code == 38 || code == 40))) { // cmd-up/down
- scrollEnd(code == 36 || code == 38); return e_preventDefault(e);
+ var handled = handleKeyBinding(e);
+ if (opera) {
+ lastStoppedKey = handled ? code : null;
+ // Opera has no cut event... we try to at least catch the key combo
+ if (!handled && code == 88 && e_prop(e, mac ? "metaKey" : "ctrlKey"))
+ replaceSelection("");
}
- if (mod && code == 65) {selectAll(); return e_preventDefault(e);} // ctrl-a
- if (!options.readOnly) {
- if (!anyMod && code == 13) {return;} // enter
- if (!anyMod && code == 9 && handleTab(e.shiftKey)) return e_preventDefault(e); // tab
- if (mod && code == 90) {undo(); return e_preventDefault(e);} // ctrl-z
- if (mod && ((e.shiftKey && code == 90) || code == 89)) {redo(); return e_preventDefault(e);} // ctrl-shift-z, ctrl-y
+ }
+ function onKeyPress(e) {
+ if (pollingFast) readInput();
+ if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
+ var keyCode = e_prop(e, "keyCode"), charCode = e_prop(e, "charCode");
+ if (opera && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}
+ if (((opera && (!e.which || e.which < 10)) || khtml) && handleKeyBinding(e)) return;
+ var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
+ if (options.electricChars && mode.electricChars && options.smartIndent && !options.readOnly) {
+ if (mode.electricChars.indexOf(ch) > -1)
+ setTimeout(operation(function() {indentLine(sel.to.line, "smart");}), 75);
}
- if (code == 36) { if (options.smartHome) { smartHome(); return e_preventDefault(e); } }
-
- // Key id to use in the movementKeys map. We also pass it to
- // fastPoll in order to 'self learn'. We need this because
- // reducedSelection, the hack where we collapse the selection to
- // its start when it is inverted and a movement key is pressed
- // (and later restore it again), shouldn't be used for
- // non-movement keys.
- curKeyId = (mod ? "c" : "") + (e.altKey ? "a" : "") + code;
- if (sel.inverted && movementKeys[curKeyId] === true) {
- var range = selRange(input);
- if (range) {
- reducedSelection = {anchor: range.start};
- setSelRange(input, range.start, range.start);
- }
- }
- // Don't save the key as a movementkey unless it had a modifier
- if (!mod && !e.altKey) curKeyId = null;
- fastPoll(curKeyId);
+ if (handleCharBinding(e, ch)) return;
+ fastPoll();
}
function onKeyUp(e) {
if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
- if (reducedSelection) {
- reducedSelection = null;
- updateInput = true;
- }
- if (e.keyCode == 16) shiftSelecting = null;
- }
- function onKeyPress(e) {
- if (options.onKeyEvent && options.onKeyEvent(instance, addStop(e))) return;
- if (options.electricChars && mode.electricChars) {
- var ch = String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode);
- if (mode.electricChars.indexOf(ch) > -1)
- setTimeout(operation(function() {indentLine(sel.to.line, "smart");}), 50);
- }
- var code = e.keyCode;
- // Re-stop tab and enter. Necessary on some browsers.
- if (code == 13) {if (!options.readOnly) handleEnter(); e_preventDefault(e);}
- else if (!e.ctrlKey && !e.altKey && !e.metaKey && code == 9 && options.tabMode != "default") e_preventDefault(e);
- else fastPoll(curKeyId);
+ if (e_prop(e, "keyCode") == 16) shiftSelecting = null;
}
function onFocus() {
@@ -463,9 +645,9 @@ var CodeMirror = (function() {
if (!focused) {
if (options.onFocus) options.onFocus(instance);
focused = true;
- if (wrapper.className.search(/\bCodeMirror-focused\b/) == -1)
- wrapper.className += " CodeMirror-focused";
- if (!leaveInputAlone) prepareInput();
+ if (scroller.className.search(/\bCodeMirror-focused\b/) == -1)
+ scroller.className += " CodeMirror-focused";
+ if (!leaveInputAlone) resetInput(true);
}
slowPoll();
restartBlink();
@@ -474,90 +656,149 @@ var CodeMirror = (function() {
if (focused) {
if (options.onBlur) options.onBlur(instance);
focused = false;
- wrapper.className = wrapper.className.replace(" CodeMirror-focused", "");
+ if (bracketHighlighted)
+ operation(function(){
+ if (bracketHighlighted) { bracketHighlighted(); bracketHighlighted = null; }
+ })();
+ scroller.className = scroller.className.replace(" CodeMirror-focused", "");
}
clearInterval(blinker);
setTimeout(function() {if (!focused) shiftSelecting = null;}, 150);
}
+ function chopDelta(delta) {
+ // Make sure we always scroll a little bit for any nonzero delta.
+ if (delta > 0.0 && delta < 1.0) return 1;
+ else if (delta > -1.0 && delta < 0.0) return -1;
+ else return Math.round(delta);
+ }
+
+ function onMouseWheel(e) {
+ var deltaX = 0, deltaY = 0;
+ if (e.type == "DOMMouseScroll") { // Firefox
+ var delta = -e.detail * 8.0;
+ if (e.axis == e.HORIZONTAL_AXIS) deltaX = delta;
+ else if (e.axis == e.VERTICAL_AXIS) deltaY = delta;
+ } else if (e.wheelDeltaX !== undefined && e.wheelDeltaY !== undefined) { // WebKit
+ deltaX = e.wheelDeltaX / 3.0;
+ deltaY = e.wheelDeltaY / 3.0;
+ } else if (e.wheelDelta !== undefined) { // IE or Opera
+ deltaY = e.wheelDelta / 3.0;
+ }
+
+ var scrolled = false;
+ deltaX = chopDelta(deltaX);
+ deltaY = chopDelta(deltaY);
+ if ((deltaX > 0 && scroller.scrollLeft > 0) ||
+ (deltaX < 0 && scroller.scrollLeft + scroller.clientWidth < scroller.scrollWidth)) {
+ scroller.scrollLeft -= deltaX;
+ scrolled = true;
+ }
+ if ((deltaY > 0 && scrollbar.scrollTop > 0) ||
+ (deltaY < 0 && scrollbar.scrollTop + scrollbar.clientHeight < scrollbar.scrollHeight)) {
+ scrollbar.scrollTop -= deltaY;
+ scrolled = true;
+ }
+ if (scrolled) e_stop(e);
+ }
+
// Replace the range from from to to by the strings in newText.
// Afterwards, set the selection to selFrom, selTo.
function updateLines(from, to, newText, selFrom, selTo) {
+ if (suppressEdits) return;
if (history) {
var old = [];
- for (var i = from.line, e = to.line + 1; i < e; ++i) old.push(lines[i].text);
+ doc.iter(from.line, to.line + 1, function(line) { old.push(line.text); });
history.addChange(from.line, newText.length, old);
while (history.done.length > options.undoDepth) history.done.shift();
}
updateLinesNoUndo(from, to, newText, selFrom, selTo);
}
function unredoHelper(from, to) {
- var change = from.pop();
- if (change) {
+ if (!from.length) return;
+ var set = from.pop(), out = [];
+ for (var i = set.length - 1; i >= 0; i -= 1) {
+ var change = set[i];
var replaced = [], end = change.start + change.added;
- for (var i = change.start; i < end; ++i) replaced.push(lines[i].text);
- to.push({start: change.start, added: change.old.length, old: replaced});
- var pos = clipPos({line: change.start + change.old.length - 1,
- ch: editEnd(replaced[replaced.length-1], change.old[change.old.length-1])});
- updateLinesNoUndo({line: change.start, ch: 0}, {line: end - 1, ch: lines[end-1].text.length}, change.old, pos, pos);
- updateInput = true;
+ doc.iter(change.start, end, function(line) { replaced.push(line.text); });
+ out.push({start: change.start, added: change.old.length, old: replaced});
+ var pos = {line: change.start + change.old.length - 1,
+ ch: editEnd(replaced[replaced.length-1], change.old[change.old.length-1])};
+ updateLinesNoUndo({line: change.start, ch: 0}, {line: end - 1, ch: getLine(end-1).text.length}, change.old, pos, pos);
}
+ updateInput = true;
+ to.push(out);
}
function undo() {unredoHelper(history.done, history.undone);}
function redo() {unredoHelper(history.undone, history.done);}
function updateLinesNoUndo(from, to, newText, selFrom, selTo) {
+ if (suppressEdits) return;
var recomputeMaxLength = false, maxLineLength = maxLine.length;
- for (var i = from.line; i <= to.line; ++i) {
- if (lines[i].text.length == maxLineLength) {recomputeMaxLength = true; break;}
- }
+ if (!options.lineWrapping)
+ doc.iter(from.line, to.line + 1, function(line) {
+ if (!line.hidden && line.text.length == maxLineLength) {recomputeMaxLength = true; return true;}
+ });
+ if (from.line != to.line || newText.length > 1) gutterDirty = true;
- var nlines = to.line - from.line, firstLine = lines[from.line], lastLine = lines[to.line];
+ var nlines = to.line - from.line, firstLine = getLine(from.line), lastLine = getLine(to.line);
// First adjust the line structure, taking some care to leave highlighting intact.
- if (firstLine == lastLine) {
+ if (from.ch == 0 && to.ch == 0 && newText[newText.length - 1] == "") {
+ // This is a whole-line replace. Treated specially to make
+ // sure line objects move the way they are supposed to.
+ var added = [], prevLine = null;
+ if (from.line) {
+ prevLine = getLine(from.line - 1);
+ prevLine.fixMarkEnds(lastLine);
+ } else lastLine.fixMarkStarts();
+ for (var i = 0, e = newText.length - 1; i < e; ++i)
+ added.push(Line.inheritMarks(newText[i], prevLine));
+ if (nlines) doc.remove(from.line, nlines, callbacks);
+ if (added.length) doc.insert(from.line, added);
+ } else if (firstLine == lastLine) {
if (newText.length == 1)
firstLine.replace(from.ch, to.ch, newText[0]);
else {
lastLine = firstLine.split(to.ch, newText[newText.length-1]);
- var spliceargs = [from.line + 1, nlines];
firstLine.replace(from.ch, null, newText[0]);
+ firstLine.fixMarkEnds(lastLine);
+ var added = [];
for (var i = 1, e = newText.length - 1; i < e; ++i)
- spliceargs.push(Line.inheritMarks(newText[i], firstLine));
- spliceargs.push(lastLine);
- lines.splice.apply(lines, spliceargs);
+ added.push(Line.inheritMarks(newText[i], firstLine));
+ added.push(lastLine);
+ doc.insert(from.line + 1, added);
}
- }
- else if (newText.length == 1) {
+ } else if (newText.length == 1) {
firstLine.replace(from.ch, null, newText[0]);
lastLine.replace(null, to.ch, "");
firstLine.append(lastLine);
- lines.splice(from.line + 1, nlines);
- }
- else {
- var spliceargs = [from.line + 1, nlines - 1];
+ doc.remove(from.line + 1, nlines, callbacks);
+ } else {
+ var added = [];
firstLine.replace(from.ch, null, newText[0]);
lastLine.replace(null, to.ch, newText[newText.length-1]);
+ firstLine.fixMarkEnds(lastLine);
for (var i = 1, e = newText.length - 1; i < e; ++i)
- spliceargs.push(Line.inheritMarks(newText[i], firstLine));
- lines.splice.apply(lines, spliceargs);
+ added.push(Line.inheritMarks(newText[i], firstLine));
+ if (nlines > 1) doc.remove(from.line + 1, nlines - 1, callbacks);
+ doc.insert(from.line + 1, added);
}
-
-
- for (var i = from.line, e = i + newText.length; i < e; ++i) {
- var l = lines[i].text;
- if (l.length > maxLineLength) {
- maxLine = l; maxLineLength = l.length; maxWidth = null;
- recomputeMaxLength = false;
- }
- }
- if (recomputeMaxLength) {
- maxLineLength = 0; maxLine = ""; maxWidth = null;
- for (var i = 0, e = lines.length; i < e; ++i) {
- var l = lines[i].text;
- if (l.length > maxLineLength) {
- maxLineLength = l.length; maxLine = l;
+ if (options.lineWrapping) {
+ var perLine = Math.max(5, scroller.clientWidth / charWidth() - 3);
+ doc.iter(from.line, from.line + newText.length, function(line) {
+ if (line.hidden) return;
+ var guess = Math.ceil(line.text.length / perLine) || 1;
+ if (guess != line.height) updateLineHeight(line, guess);
+ });
+ } else {
+ doc.iter(from.line, from.line + newText.length, function(line) {
+ var l = line.text;
+ if (!line.hidden && l.length > maxLineLength) {
+ maxLine = l; maxLineLength = l.length; maxLineChanged = true;
+ recomputeMaxLength = false;
}
- }
+ });
+ if (recomputeMaxLength) updateMaxLine = true;
}
// Add these lines to the work array, so that they will be
@@ -568,24 +809,64 @@ var CodeMirror = (function() {
if (task < from.line) newWork.push(task);
else if (task > to.line) newWork.push(task + lendiff);
}
- if (newText.length < 5) {
- highlightLines(from.line, from.line + newText.length);
- newWork.push(from.line + newText.length);
- } else {
- newWork.push(from.line);
- }
+ var hlEnd = from.line + Math.min(newText.length, 500);
+ highlightLines(from.line, hlEnd);
+ newWork.push(hlEnd);
work = newWork;
startWorker(100);
// Remember that these lines changed, for updating the display
changes.push({from: from.line, to: to.line + 1, diff: lendiff});
- textChanged = {from: from, to: to, text: newText};
+ var changeObj = {from: from, to: to, text: newText};
+ if (textChanged) {
+ for (var cur = textChanged; cur.next; cur = cur.next) {}
+ cur.next = changeObj;
+ } else textChanged = changeObj;
// Update the selection
function updateLine(n) {return n <= Math.min(to.line, to.line + lendiff) ? n : n + lendiff;}
- setSelection(selFrom, selTo, updateLine(sel.from.line), updateLine(sel.to.line));
+ setSelection(clipPos(selFrom), clipPos(selTo),
+ updateLine(sel.from.line), updateLine(sel.to.line));
+ }
- // Make sure the scroll-size div has the correct height.
- code.style.height = (lines.length * lineHeight() + 2 * paddingTop()) + "px";
+ function updateVerticalScroll(scrollTop) {
+ var th = textHeight(), virtualHeight = Math.floor(doc.height * th + 2 * paddingTop()), scrollbarHeight = scroller.clientHeight;
+ scrollbar.style.height = scrollbarHeight + "px";
+ if (scroller.clientHeight)
+ scrollbarInner.style.height = virtualHeight + "px";
+ // Position the mover div to align with the current virtual scroll position
+ if (scrollTop != null) scrollbar.scrollTop = scrollTop;
+ mover.style.top = (displayOffset * th - scrollbar.scrollTop) + "px";
+ scrollbar.style.display = (virtualHeight > scrollbarHeight) ? "block" : "none";
+ }
+
+ // On Mac OS X Lion and up, detect whether the mouse is plugged in by measuring
+ // the width of a div with a scrollbar in it. If the width is <= 1, then
+ // the mouse isn't plugged in and scrollbars should overlap the content.
+ function overlapScrollbars() {
+ var tmpSb = document.createElement('div'),
+ tmpSbInner = document.createElement('div');
+ tmpSb.className = "CodeMirror-scrollbar";
+ tmpSb.style.cssText = "position: absolute; left: -9999px; height: 100px;";
+ tmpSbInner.className = "CodeMirror-scrollbar-inner";
+ tmpSbInner.style.height = "200px";
+ tmpSb.appendChild(tmpSbInner);
+
+ document.body.appendChild(tmpSb);
+ var result = (tmpSb.offsetWidth <= 1);
+ document.body.removeChild(tmpSb);
+ return result;
+ }
+
+ function computeMaxLength() {
+ var maxLineLength = 0;
+ maxLine = ""; maxLineChanged = true;
+ doc.iter(0, doc.size, function(line) {
+ var l = line.text;
+ if (!line.hidden && l.length > maxLineLength) {
+ maxLineLength = l.length; maxLine = l;
+ }
+ });
+ updateMaxLine = false;
}
function replaceRange(code, from, to) {
@@ -623,10 +904,10 @@ var CodeMirror = (function() {
function getRange(from, to) {
var l1 = from.line, l2 = to.line;
- if (l1 == l2) return lines[l1].text.slice(from.ch, to.ch);
- var code = [lines[l1].text.slice(from.ch)];
- for (var i = l1 + 1; i < l2; ++i) code.push(lines[i].text);
- code.push(lines[l2].text.slice(0, to.ch));
+ if (l1 == l2) return getLine(l1).text.slice(from.ch, to.ch);
+ var code = [getLine(l1).text.slice(from.ch)];
+ doc.iter(l1 + 1, l2, function(line) { code.push(line.text); });
+ code.push(getLine(l2).text.slice(0, to.ch));
return code.join("\n");
}
function getSelection() {
@@ -636,115 +917,56 @@ var CodeMirror = (function() {
var pollingFast = false; // Ensures slowPoll doesn't cancel fastPoll
function slowPoll() {
if (pollingFast) return;
- poll.set(2000, function() {
+ poll.set(options.pollInterval, function() {
startOperation();
readInput();
if (focused) slowPoll();
endOperation();
});
}
- function fastPoll(keyId) {
+ function fastPoll() {
var missed = false;
pollingFast = true;
function p() {
startOperation();
var changed = readInput();
- if (changed && keyId) {
- if (changed == "moved" && movementKeys[keyId] == null) movementKeys[keyId] = true;
- if (changed == "changed") movementKeys[keyId] = false;
- }
- if (!changed && !missed) {missed = true; poll.set(80, p);}
+ if (!changed && !missed) {missed = true; poll.set(60, p);}
else {pollingFast = false; slowPoll();}
endOperation();
}
poll.set(20, p);
}
- // Inspects the textarea, compares its state (content, selection)
- // to the data in the editing variable, and updates the editor
- // content or cursor if something changed.
+ // Previnput is a hack to work with IME. If we reset the textarea
+ // on every change, that breaks IME. So we look for changes
+ // compared to the previous content instead. (Modern browsers have
+ // events that indicate IME taking place, but these are not widely
+ // supported or compatible enough yet to rely on.)
+ var prevInput = "";
function readInput() {
- if (leaveInputAlone || !focused) return;
- var changed = false, text = input.value, sr = selRange(input);
- if (!sr) return false;
- var changed = editing.text != text, rs = reducedSelection;
- var moved = changed || sr.start != editing.start || sr.end != (rs ? editing.start : editing.end);
- if (!moved && !rs) return false;
- if (changed) {
- shiftSelecting = reducedSelection = null;
- if (options.readOnly) {updateInput = true; return "changed";}
- }
-
- // Compute selection start and end based on start/end offsets in textarea
- function computeOffset(n, startLine) {
- var pos = 0;
- for (;;) {
- var found = text.indexOf("\n", pos);
- if (found == -1 || (text.charAt(found-1) == "\r" ? found - 1 : found) >= n)
- return {line: startLine, ch: n - pos};
- ++startLine;
- pos = found + 1;
- }
- }
- var from = computeOffset(sr.start, editing.from),
- to = computeOffset(sr.end, editing.from);
- // Here we have to take the reducedSelection hack into account,
- // so that you can, for example, press shift-up at the start of
- // your selection and have the right thing happen.
- if (rs) {
- var head = sr.start == rs.anchor ? to : from;
- var tail = shiftSelecting ? sel.to : sr.start == rs.anchor ? from : to;
- if (sel.inverted = posLess(head, tail)) { from = head; to = tail; }
- else { reducedSelection = null; from = tail; to = head; }
- }
-
- // In some cases (cursor on same line as before), we don't have
- // to update the textarea content at all.
- if (from.line == to.line && from.line == sel.from.line && from.line == sel.to.line && !shiftSelecting)
- updateInput = false;
-
- // Magic mess to extract precise edited range from the changed
- // string.
- if (changed) {
- var start = 0, end = text.length, len = Math.min(end, editing.text.length);
- var c, line = editing.from, nl = -1;
- while (start < len && (c = text.charAt(start)) == editing.text.charAt(start)) {
- ++start;
- if (c == "\n") {line++; nl = start;}
- }
- var ch = nl > -1 ? start - nl : start, endline = editing.to - 1, edend = editing.text.length;
- for (;;) {
- c = editing.text.charAt(edend);
- if (text.charAt(end) != c) {++end; ++edend; break;}
- if (c == "\n") endline--;
- if (edend <= start || end <= start) break;
- --end; --edend;
- }
- var nl = editing.text.lastIndexOf("\n", edend - 1), endch = nl == -1 ? edend : edend - nl - 1;
- updateLines({line: line, ch: ch}, {line: endline, ch: endch}, splitLines(text.slice(start, end)), from, to);
- if (line != endline || from.line != line) updateInput = true;
- }
- else setSelection(from, to);
-
- editing.text = text; editing.start = sr.start; editing.end = sr.end;
- return changed ? "changed" : moved ? "moved" : false;
+ if (leaveInputAlone || !focused || hasSelection(input) || options.readOnly) return false;
+ var text = input.value;
+ if (text == prevInput) return false;
+ shiftSelecting = null;
+ var same = 0, l = Math.min(prevInput.length, text.length);
+ while (same < l && prevInput[same] == text[same]) ++same;
+ if (same < prevInput.length)
+ sel.from = {line: sel.from.line, ch: sel.from.ch - (prevInput.length - same)};
+ else if (overwrite && posEq(sel.from, sel.to))
+ sel.to = {line: sel.to.line, ch: Math.min(getLine(sel.to.line).text.length, sel.to.ch + (text.length - same))};
+ replaceSelection(text.slice(same), "end");
+ if (text.length > 1000) { input.value = prevInput = ""; }
+ else prevInput = text;
+ return true;
+ }
+ function resetInput(user) {
+ if (!posEq(sel.from, sel.to)) {
+ prevInput = "";
+ input.value = getSelection();
+ selectInput(input);
+ } else if (user) prevInput = input.value = "";
}
- // Set the textarea content and selection range to match the
- // editor state.
- function prepareInput() {
- var text = [];
- var from = Math.max(0, sel.from.line - 1), to = Math.min(lines.length, sel.to.line + 2);
- for (var i = from; i < to; ++i) text.push(lines[i].text);
- text = input.value = text.join(lineSep);
- var startch = sel.from.ch, endch = sel.to.ch;
- for (var i = from; i < sel.from.line; ++i)
- startch += lineSep.length + lines[i].text.length;
- for (var i = from; i < sel.to.line; ++i)
- endch += lineSep.length + lines[i].text.length;
- editing = {text: text, from: from, to: to, start: startch, end: endch};
- setSelRange(input, startch, reducedSelection ? startch : endch);
- }
function focusInput() {
if (options.readOnly != "nocursor") input.focus();
}
@@ -752,59 +974,156 @@ var CodeMirror = (function() {
function scrollEditorIntoView() {
if (!cursor.getBoundingClientRect) return;
var rect = cursor.getBoundingClientRect();
+ // IE returns bogus coordinates when the instance sits inside of an iframe and the cursor is hidden
+ if (ie && rect.top == rect.bottom) return;
var winH = window.innerHeight || Math.max(document.body.offsetHeight, document.documentElement.offsetHeight);
- if (rect.top < 0 || rect.bottom > winH) cursor.scrollIntoView();
+ if (rect.top < 0 || rect.bottom > winH) scrollCursorIntoView();
}
function scrollCursorIntoView() {
+ var coords = calculateCursorCoords();
+ return scrollIntoView(coords.x, coords.y, coords.x, coords.yBot);
+ }
+ function calculateCursorCoords() {
var cursor = localCoords(sel.inverted ? sel.from : sel.to);
- return scrollIntoView(cursor.x, cursor.y, cursor.x, cursor.yBot);
+ var x = options.lineWrapping ? Math.min(cursor.x, lineSpace.offsetWidth) : cursor.x;
+ return {x: x, y: cursor.y, yBot: cursor.yBot};
}
function scrollIntoView(x1, y1, x2, y2) {
- var pl = paddingLeft(), pt = paddingTop(), lh = lineHeight();
+ var scrollPos = calculateScrollPos(x1, y1, x2, y2), scrolled = false;
+ if (scrollPos.scrollLeft != null) {scroller.scrollLeft = scrollPos.scrollLeft; scrolled = true;}
+ if (scrollPos.scrollTop != null) {scrollbar.scrollTop = scrollPos.scrollTop; scrolled = true;}
+ if (scrolled && options.onScroll) options.onScroll(instance);
+ }
+ function calculateScrollPos(x1, y1, x2, y2) {
+ var pl = paddingLeft(), pt = paddingTop();
y1 += pt; y2 += pt; x1 += pl; x2 += pl;
- var screen = scroller.clientHeight, screentop = scroller.scrollTop, scrolled = false, result = true;
- if (y1 < screentop) {scroller.scrollTop = Math.max(0, y1 - 2*lh); scrolled = true;}
- else if (y2 > screentop + screen) {scroller.scrollTop = y2 + lh - screen; scrolled = true;}
+ var screen = scroller.clientHeight, screentop = scrollbar.scrollTop, result = {};
+ var atTop = y1 < paddingTop() + 10;
+ if (y1 < screentop) result.scrollTop = atTop ? 0 : Math.max(0, y1);
+ else if (y2 > screentop + screen) result.scrollTop = y2 - screen;
var screenw = scroller.clientWidth, screenleft = scroller.scrollLeft;
var gutterw = options.fixedGutter ? gutter.clientWidth : 0;
- if (x1 < screenleft + gutterw) {
- if (x1 < 50) x1 = 0;
- scroller.scrollLeft = Math.max(0, x1 - 10 - gutterw);
- scrolled = true;
+ var atLeft = x1 < gutterw + pl + 10;
+ if (x1 < screenleft + gutterw || atLeft) {
+ if (atLeft) x1 = 0;
+ result.scrollLeft = Math.max(0, x1 - 10 - gutterw);
+ } else if (x2 > screenw + screenleft - 3) {
+ result.scrollLeft = x2 + 10 - screenw;
}
- else if (x2 > screenw + screenleft) {
- scroller.scrollLeft = x2 + 10 - screenw;
- scrolled = true;
- if (x2 > code.clientWidth) result = false;
- }
- if (scrolled && options.onScroll) options.onScroll(instance);
return result;
}
- function visibleLines() {
- var lh = lineHeight(), top = scroller.scrollTop - paddingTop();
- return {from: Math.min(lines.length, Math.max(0, Math.floor(top / lh))),
- to: Math.min(lines.length, Math.ceil((top + scroller.clientHeight) / lh))};
+ function visibleLines(scrollTop) {
+ var lh = textHeight(), top = (scrollTop != null ? scrollTop : scrollbar.scrollTop) - paddingTop();
+ var fromHeight = Math.max(0, Math.floor(top / lh));
+ var toHeight = Math.ceil((top + scroller.clientHeight) / lh);
+ return {from: lineAtHeight(doc, fromHeight),
+ to: lineAtHeight(doc, toHeight)};
}
// Uses a set of changes plus the current scroll position to
// determine which DOM updates have to be made, and makes the
// updates.
- function updateDisplay(changes) {
+ function updateDisplay(changes, suppressCallback, scrollTop) {
if (!scroller.clientWidth) {
- showingFrom = showingTo = 0;
+ showingFrom = showingTo = displayOffset = 0;
+ return;
+ }
+ // Compute the new visible window
+ // If scrollTop is specified, use that to determine which lines
+ // to render instead of the current scrollbar position.
+ var visible = visibleLines(scrollTop);
+ // Bail out if the visible area is already rendered and nothing changed.
+ if (changes !== true && changes.length == 0 && visible.from > showingFrom && visible.to < showingTo) {
+ updateVerticalScroll(scrollTop);
+ return;
+ }
+ var from = Math.max(visible.from - 100, 0), to = Math.min(doc.size, visible.to + 100);
+ if (showingFrom < from && from - showingFrom < 20) from = showingFrom;
+ if (showingTo > to && showingTo - to < 20) to = Math.min(doc.size, showingTo);
+
+ // Create a range of theoretically intact lines, and punch holes
+ // in that using the change info.
+ var intact = changes === true ? [] :
+ computeIntact([{from: showingFrom, to: showingTo, domStart: 0}], changes);
+ // Clip off the parts that won't be visible
+ var intactLines = 0;
+ for (var i = 0; i < intact.length; ++i) {
+ var range = intact[i];
+ if (range.from < from) {range.domStart += (from - range.from); range.from = from;}
+ if (range.to > to) range.to = to;
+ if (range.from >= range.to) intact.splice(i--, 1);
+ else intactLines += range.to - range.from;
+ }
+ if (intactLines == to - from && from == showingFrom && to == showingTo) {
+ updateVerticalScroll(scrollTop);
return;
}
- // First create a range of theoretically intact lines, and punch
- // holes in that using the change info.
- var intact = changes === true ? [] : [{from: showingFrom, to: showingTo, domStart: 0}];
+ intact.sort(function(a, b) {return a.domStart - b.domStart;});
+
+ var th = textHeight(), gutterDisplay = gutter.style.display;
+ lineDiv.style.display = "none";
+ patchDisplay(from, to, intact);
+ lineDiv.style.display = gutter.style.display = "";
+
+ var different = from != showingFrom || to != showingTo || lastSizeC != scroller.clientHeight + th;
+ // This is just a bogus formula that detects when the editor is
+ // resized or the font size changes.
+ if (different) lastSizeC = scroller.clientHeight + th;
+ showingFrom = from; showingTo = to;
+ displayOffset = heightAtLine(doc, from);
+
+ // Since this is all rather error prone, it is honoured with the
+ // only assertion in the whole file.
+ if (lineDiv.childNodes.length != showingTo - showingFrom)
+ throw new Error("BAD PATCH! " + JSON.stringify(intact) + " size=" + (showingTo - showingFrom) +
+ " nodes=" + lineDiv.childNodes.length);
+
+ function checkHeights() {
+ var curNode = lineDiv.firstChild, heightChanged = false;
+ doc.iter(showingFrom, showingTo, function(line) {
+ if (!line.hidden) {
+ var height = Math.round(curNode.offsetHeight / th) || 1;
+ if (line.height != height) {
+ updateLineHeight(line, height);
+ gutterDirty = heightChanged = true;
+ }
+ }
+ curNode = curNode.nextSibling;
+ });
+ return heightChanged;
+ }
+
+ if (options.lineWrapping) {
+ // Guess whether we're going to need the scrollbar, so that we don't end up changing the linewrapping
+ // after the scrollbar appears (during updateVerticalScroll()). Only do this if the scrollbar is
+ // appearing (if it's disappearing, we don't have to worry about the scroll position, and there are
+ // issues on IE7 if we turn it off too early).
+ var virtualHeight = Math.floor(doc.height * th + 2 * paddingTop()), scrollbarHeight = scroller.clientHeight;
+ if (virtualHeight > scrollbarHeight) scrollbar.style.display = "block";
+ checkHeights();
+ }
+
+ gutter.style.display = gutterDisplay;
+ if (different || gutterDirty) {
+ // If the gutter grew in size, re-check heights. If those changed, re-draw gutter.
+ updateGutter() && options.lineWrapping && checkHeights() && updateGutter();
+ }
+ updateSelection();
+ updateVerticalScroll(scrollTop);
+ if (!suppressCallback && options.onUpdate) options.onUpdate(instance);
+ return true;
+ }
+
+ function computeIntact(intact, changes) {
for (var i = 0, l = changes.length || 0; i < l; ++i) {
var change = changes[i], intact2 = [], diff = change.diff || 0;
for (var j = 0, l2 = intact.length; j < l2; ++j) {
var range = intact[j];
- if (change.to <= range.from)
- intact2.push({from: range.from + diff, to: range.to + diff, domStart: range.domStart});
- else if (range.to <= change.from)
+ if (change.to <= range.from && change.diff)
+ intact2.push({from: range.from + diff, to: range.to + diff,
+ domStart: range.domStart});
+ else if (change.to <= range.from || change.from >= range.to)
intact2.push(range);
else {
if (change.from > range.from)
@@ -816,168 +1135,130 @@ var CodeMirror = (function() {
}
intact = intact2;
}
-
- // Then, determine which lines we'd want to see, and which
- // updates have to be made to get there.
- var visible = visibleLines();
- var from = Math.min(showingFrom, Math.max(visible.from - 3, 0)),
- to = Math.min(lines.length, Math.max(showingTo, visible.to + 3)),
- updates = [], domPos = 0, domEnd = showingTo - showingFrom, pos = from, changedLines = 0;
-
- for (var i = 0, l = intact.length; i < l; ++i) {
- var range = intact[i];
- if (range.to <= from) continue;
- if (range.from >= to) break;
- if (range.domStart > domPos || range.from > pos) {
- updates.push({from: pos, to: range.from, domSize: range.domStart - domPos, domStart: domPos});
- changedLines += range.from - pos;
- }
- pos = range.to;
- domPos = range.domStart + (range.to - range.from);
- }
- if (domPos != domEnd || pos != to) {
- changedLines += Math.abs(to - pos);
- updates.push({from: pos, to: to, domSize: domEnd - domPos, domStart: domPos});
- if (to - pos != domEnd - domPos) gutterDirty = true;
- }
-
- if (!updates.length) return;
- lineDiv.style.display = "none";
- // If more than 30% of the screen needs update, just do a full
- // redraw (which is quicker than patching)
- if (changedLines > (visible.to - visible.from) * .3)
- refreshDisplay(from = Math.max(visible.from - 10, 0), to = Math.min(visible.to + 7, lines.length));
- // Otherwise, only update the stuff that needs updating.
- else
- patchDisplay(updates);
- lineDiv.style.display = "";
-
- // Position the mover div to align with the lines it's supposed
- // to be showing (which will cover the visible display)
- var different = from != showingFrom || to != showingTo || lastHeight != scroller.clientHeight;
- showingFrom = from; showingTo = to;
- mover.style.top = (from * lineHeight()) + "px";
- if (different) {
- lastHeight = scroller.clientHeight;
- code.style.height = (lines.length * lineHeight() + 2 * paddingTop()) + "px";
- }
- if (different || gutterDirty) updateGutter();
-
- if (maxWidth == null) maxWidth = stringWidth(maxLine);
- if (maxWidth > scroller.clientWidth) {
- lineSpace.style.width = maxWidth + "px";
- // Needed to prevent odd wrapping/hiding of widgets placed in here.
- code.style.width = "";
- code.style.width = scroller.scrollWidth + "px";
- } else {
- lineSpace.style.width = code.style.width = "";
- }
-
- // Since this is all rather error prone, it is honoured with the
- // only assertion in the whole file.
- if (lineDiv.childNodes.length != showingTo - showingFrom)
- throw new Error("BAD PATCH! " + JSON.stringify(updates) + " size=" + (showingTo - showingFrom) +
- " nodes=" + lineDiv.childNodes.length);
- updateCursor();
+ return intact;
}
- function refreshDisplay(from, to) {
- var html = [], start = {line: from, ch: 0}, inSel = posLess(sel.from, start) && !posLess(sel.to, start);
- for (var i = from; i < to; ++i) {
- var ch1 = null, ch2 = null;
- if (inSel) {
- ch1 = 0;
- if (sel.to.line == i) {inSel = false; ch2 = sel.to.ch;}
+ function patchDisplay(from, to, intact) {
+ // The first pass removes the DOM nodes that aren't intact.
+ if (!intact.length) lineDiv.innerHTML = "";
+ else {
+ function killNode(node) {
+ var tmp = node.nextSibling;
+ node.parentNode.removeChild(node);
+ return tmp;
}
- else if (sel.from.line == i) {
- if (sel.to.line == i) {ch1 = sel.from.ch; ch2 = sel.to.ch;}
- else {inSel = true; ch1 = sel.from.ch;}
+ var domPos = 0, curNode = lineDiv.firstChild, n;
+ for (var i = 0; i < intact.length; ++i) {
+ var cur = intact[i];
+ while (cur.domStart > domPos) {curNode = killNode(curNode); domPos++;}
+ for (var j = 0, e = cur.to - cur.from; j < e; ++j) {curNode = curNode.nextSibling; domPos++;}
}
- html.push(lines[i].getHTML(ch1, ch2, true));
+ while (curNode) curNode = killNode(curNode);
}
- lineDiv.innerHTML = html.join("");
- }
- function patchDisplay(updates) {
- // Slightly different algorithm for IE (badInnerHTML), since
- // there .innerHTML on PRE nodes is dumb, and discards
- // whitespace.
- var sfrom = sel.from.line, sto = sel.to.line, off = 0,
- scratch = badInnerHTML && targetDocument.createElement("div");
- for (var i = 0, e = updates.length; i < e; ++i) {
- var rec = updates[i];
- var extra = (rec.to - rec.from) - rec.domSize;
- var nodeAfter = lineDiv.childNodes[rec.domStart + rec.domSize + off] || null;
- if (badInnerHTML)
- for (var j = Math.max(-extra, rec.domSize); j > 0; --j)
- lineDiv.removeChild(nodeAfter ? nodeAfter.previousSibling : lineDiv.lastChild);
- else if (extra) {
- for (var j = Math.max(0, extra); j > 0; --j)
- lineDiv.insertBefore(targetDocument.createElement("pre"), nodeAfter);
- for (var j = Math.max(0, -extra); j > 0; --j)
- lineDiv.removeChild(nodeAfter ? nodeAfter.previousSibling : lineDiv.lastChild);
+ // This pass fills in the lines that actually changed.
+ var nextIntact = intact.shift(), curNode = lineDiv.firstChild, j = from;
+ var scratch = document.createElement("div");
+ doc.iter(from, to, function(line) {
+ if (nextIntact && nextIntact.to == j) nextIntact = intact.shift();
+ if (!nextIntact || nextIntact.from > j) {
+ if (line.hidden) var html = scratch.innerHTML = "
'
+ + line.getHTML(makeTab) + '';
+ // Kludge to make sure the styled element lies behind the selection (by z-index)
+ if (line.bgClassName)
+ html = '";
+ }
+ scratch.innerHTML = html;
+ lineDiv.insertBefore(scratch.firstChild, curNode);
+ } else {
+ curNode = curNode.nextSibling;
}
- var node = lineDiv.childNodes[rec.domStart + off], inSel = sfrom < rec.from && sto >= rec.from;
- for (var j = rec.from; j < rec.to; ++j) {
- var ch1 = null, ch2 = null;
- if (inSel) {
- ch1 = 0;
- if (sto == j) {inSel = false; ch2 = sel.to.ch;}
- }
- else if (sfrom == j) {
- if (sto == j) {ch1 = sel.from.ch; ch2 = sel.to.ch;}
- else {inSel = true; ch1 = sel.from.ch;}
- }
- if (badInnerHTML) {
- scratch.innerHTML = lines[j].getHTML(ch1, ch2, true);
- lineDiv.insertBefore(scratch.firstChild, nodeAfter);
- }
- else {
- node.innerHTML = lines[j].getHTML(ch1, ch2, false);
- node.className = lines[j].className || "";
- node = node.nextSibling;
- }
- }
- off += extra;
- }
+ ++j;
+ });
}
function updateGutter() {
if (!options.gutter && !options.lineNumbers) return;
var hText = mover.offsetHeight, hEditor = scroller.clientHeight;
gutter.style.height = (hText - hEditor < 2 ? hEditor : hText) + "px";
- var html = [];
- for (var i = showingFrom; i < Math.max(showingTo, showingFrom + 1); ++i) {
- var marker = lines[i].gutterMarker;
- var text = options.lineNumbers ? i + options.firstLineNumber : null;
- if (marker && marker.text)
- text = marker.text.replace("%N%", text != null ? text : "");
- else if (text == null)
- text = "\u00a0";
- html.push((marker && marker.style ? '' : ""), text, "
");
- }
+ var html = [], i = showingFrom, normalNode;
+ doc.iter(showingFrom, Math.max(showingTo, showingFrom + 1), function(line) {
+ if (line.hidden) {
+ html.push("");
+ } else {
+ var marker = line.gutterMarker;
+ var text = options.lineNumbers ? i + options.firstLineNumber : null;
+ if (marker && marker.text)
+ text = marker.text.replace("%N%", text != null ? text : "");
+ else if (text == null)
+ text = "\u00a0";
+ html.push((marker && marker.style ? '' : ""), text);
+ for (var j = 1; j < line.height; ++j) html.push("
");
+ html.push("");
+ if (!marker) normalNode = i;
+ }
+ ++i;
+ });
gutter.style.display = "none";
gutterText.innerHTML = html.join("");
- var minwidth = String(lines.length).length, firstNode = gutterText.firstChild, val = eltText(firstNode), pad = "";
- while (val.length + pad.length < minwidth) pad += "\u00a0";
- if (pad) firstNode.insertBefore(targetDocument.createTextNode(pad), firstNode.firstChild);
+ // Make sure scrolling doesn't cause number gutter size to pop
+ if (normalNode != null && options.lineNumbers) {
+ var node = gutterText.childNodes[normalNode - showingFrom];
+ var minwidth = String(doc.size).length, val = eltText(node.firstChild), pad = "";
+ while (val.length + pad.length < minwidth) pad += "\u00a0";
+ if (pad) node.insertBefore(document.createTextNode(pad), node.firstChild);
+ }
gutter.style.display = "";
+ var resized = Math.abs((parseInt(lineSpace.style.marginLeft) || 0) - gutter.offsetWidth) > 2;
lineSpace.style.marginLeft = gutter.offsetWidth + "px";
gutterDirty = false;
+ return resized;
}
- function updateCursor() {
- var head = sel.inverted ? sel.from : sel.to, lh = lineHeight();
- var x = charX(head.line, head.ch);
- var top = head.line * lh - scroller.scrollTop;
- inputDiv.style.top = Math.max(Math.min(top, scroller.offsetHeight), 0) + "px";
- inputDiv.style.left = (x - scroller.scrollLeft) + "px";
- if (posEq(sel.from, sel.to)) {
- cursor.style.top = (head.line - showingFrom) * lh + "px";
- cursor.style.left = x + "px";
+ function updateSelection() {
+ var collapsed = posEq(sel.from, sel.to);
+ var fromPos = localCoords(sel.from, true);
+ var toPos = collapsed ? fromPos : localCoords(sel.to, true);
+ var headPos = sel.inverted ? fromPos : toPos, th = textHeight();
+ var wrapOff = eltOffset(wrapper), lineOff = eltOffset(lineDiv);
+ inputDiv.style.top = Math.max(0, Math.min(scroller.offsetHeight, headPos.y + lineOff.top - wrapOff.top)) + "px";
+ inputDiv.style.left = Math.max(0, Math.min(scroller.offsetWidth, headPos.x + lineOff.left - wrapOff.left)) + "px";
+ if (collapsed) {
+ cursor.style.top = headPos.y + "px";
+ cursor.style.left = (options.lineWrapping ? Math.min(headPos.x, lineSpace.offsetWidth) : headPos.x) + "px";
cursor.style.display = "";
+ selectionDiv.style.display = "none";
+ } else {
+ var sameLine = fromPos.y == toPos.y, html = "";
+ var clientWidth = lineSpace.clientWidth || lineSpace.offsetWidth;
+ var clientHeight = lineSpace.clientHeight || lineSpace.offsetHeight;
+ function add(left, top, right, height) {
+ var rstyle = quirksMode ? "width: " + (!right ? clientWidth : clientWidth - right - left) + "px"
+ : "right: " + right + "px";
+ html += '';
+ }
+ if (sel.from.ch && fromPos.y >= 0) {
+ var right = sameLine ? clientWidth - toPos.x : 0;
+ add(fromPos.x, fromPos.y, right, th);
+ }
+ var middleStart = Math.max(0, fromPos.y + (sel.from.ch ? th : 0));
+ var middleHeight = Math.min(toPos.y, clientHeight) - middleStart;
+ if (middleHeight > 0.2 * th)
+ add(0, middleStart, 0, middleHeight);
+ if ((!sameLine || !sel.from.ch) && toPos.y < clientHeight - .5 * th)
+ add(0, toPos.y, clientWidth - toPos.x, th);
+ selectionDiv.innerHTML = html;
+ cursor.style.display = "none";
+ selectionDiv.style.display = "";
}
- else cursor.style.display = "none";
}
+ function setShift(val) {
+ if (val) shiftSelecting = shiftSelecting || (sel.inverted ? sel.to : sel.from);
+ else shiftSelecting = null;
+ }
function setSelectionUser(from, to) {
var sh = shiftSelecting && clipPos(shiftSelecting);
if (sh) {
@@ -985,130 +1266,166 @@ var CodeMirror = (function() {
else if (posLess(to, sh)) to = sh;
}
setSelection(from, to);
+ userSelChange = true;
}
// Update the selection. Last two args are only used by
// updateLines, since they have to be expressed in the line
// numbers before the update.
function setSelection(from, to, oldFrom, oldTo) {
+ goalColumn = null;
+ if (oldFrom == null) {oldFrom = sel.from.line; oldTo = sel.to.line;}
if (posEq(sel.from, from) && posEq(sel.to, to)) return;
if (posLess(to, from)) {var tmp = to; to = from; from = tmp;}
+ // Skip over hidden lines.
+ if (from.line != oldFrom) {
+ var from1 = skipHidden(from, oldFrom, sel.from.ch);
+ // If there is no non-hidden line left, force visibility on current line
+ if (!from1) setLineHidden(from.line, false);
+ else from = from1;
+ }
+ if (to.line != oldTo) to = skipHidden(to, oldTo, sel.to.ch);
+
if (posEq(from, to)) sel.inverted = false;
else if (posEq(from, sel.to)) sel.inverted = false;
else if (posEq(to, sel.from)) sel.inverted = true;
- // Some ugly logic used to only mark the lines that actually did
- // see a change in selection as changed, rather than the whole
- // selected range.
- if (oldFrom == null) {oldFrom = sel.from.line; oldTo = sel.to.line;}
- if (posEq(from, to)) {
- if (!posEq(sel.from, sel.to))
- changes.push({from: oldFrom, to: oldTo + 1});
- }
- else if (posEq(sel.from, sel.to)) {
- changes.push({from: from.line, to: to.line + 1});
- }
- else {
- if (!posEq(from, sel.from)) {
- if (from.line < oldFrom)
- changes.push({from: from.line, to: Math.min(to.line, oldFrom) + 1});
- else
- changes.push({from: oldFrom, to: Math.min(oldTo, from.line) + 1});
- }
- if (!posEq(to, sel.to)) {
- if (to.line < oldTo)
- changes.push({from: Math.max(oldFrom, from.line), to: oldTo + 1});
- else
- changes.push({from: Math.max(from.line, oldTo), to: to.line + 1});
+ if (options.autoClearEmptyLines && posEq(sel.from, sel.to)) {
+ var head = sel.inverted ? from : to;
+ if (head.line != sel.from.line && sel.from.line < doc.size) {
+ var oldLine = getLine(sel.from.line);
+ if (/^\s+$/.test(oldLine.text))
+ setTimeout(operation(function() {
+ if (oldLine.parent && /^\s+$/.test(oldLine.text)) {
+ var no = lineNo(oldLine);
+ replaceRange("", {line: no, ch: 0}, {line: no, ch: oldLine.text.length});
+ }
+ }, 10));
}
}
+
sel.from = from; sel.to = to;
selectionChanged = true;
}
+ function skipHidden(pos, oldLine, oldCh) {
+ function getNonHidden(dir) {
+ var lNo = pos.line + dir, end = dir == 1 ? doc.size : -1;
+ while (lNo != end) {
+ var line = getLine(lNo);
+ if (!line.hidden) {
+ var ch = pos.ch;
+ if (toEnd || ch > oldCh || ch > line.text.length) ch = line.text.length;
+ return {line: lNo, ch: ch};
+ }
+ lNo += dir;
+ }
+ }
+ var line = getLine(pos.line);
+ var toEnd = pos.ch == line.text.length && pos.ch != oldCh;
+ if (!line.hidden) return pos;
+ if (pos.line >= oldLine) return getNonHidden(1) || getNonHidden(-1);
+ else return getNonHidden(-1) || getNonHidden(1);
+ }
function setCursor(line, ch, user) {
var pos = clipPos({line: line, ch: ch || 0});
(user ? setSelectionUser : setSelection)(pos, pos);
}
- function clipLine(n) {return Math.max(0, Math.min(n, lines.length-1));}
+ function clipLine(n) {return Math.max(0, Math.min(n, doc.size-1));}
function clipPos(pos) {
if (pos.line < 0) return {line: 0, ch: 0};
- if (pos.line >= lines.length) return {line: lines.length-1, ch: lines[lines.length-1].text.length};
- var ch = pos.ch, linelen = lines[pos.line].text.length;
+ if (pos.line >= doc.size) return {line: doc.size-1, ch: getLine(doc.size-1).text.length};
+ var ch = pos.ch, linelen = getLine(pos.line).text.length;
if (ch == null || ch > linelen) return {line: pos.line, ch: linelen};
else if (ch < 0) return {line: pos.line, ch: 0};
else return pos;
}
- function scrollPage(down) {
- var linesPerPage = Math.floor(scroller.clientHeight / lineHeight()), head = sel.inverted ? sel.from : sel.to;
- setCursor(head.line + (Math.max(linesPerPage - 1, 1) * (down ? 1 : -1)), head.ch, true);
- }
- function scrollEnd(top) {
- var pos = top ? {line: 0, ch: 0} : {line: lines.length - 1, ch: lines[lines.length-1].text.length};
- setSelectionUser(pos, pos);
+ function findPosH(dir, unit) {
+ var end = sel.inverted ? sel.from : sel.to, line = end.line, ch = end.ch;
+ var lineObj = getLine(line);
+ function findNextLine() {
+ for (var l = line + dir, e = dir < 0 ? -1 : doc.size; l != e; l += dir) {
+ var lo = getLine(l);
+ if (!lo.hidden) { line = l; lineObj = lo; return true; }
+ }
+ }
+ function moveOnce(boundToLine) {
+ if (ch == (dir < 0 ? 0 : lineObj.text.length)) {
+ if (!boundToLine && findNextLine()) ch = dir < 0 ? lineObj.text.length : 0;
+ else return false;
+ } else ch += dir;
+ return true;
+ }
+ if (unit == "char") moveOnce();
+ else if (unit == "column") moveOnce(true);
+ else if (unit == "word") {
+ var sawWord = false;
+ for (;;) {
+ if (dir < 0) if (!moveOnce()) break;
+ if (isWordChar(lineObj.text.charAt(ch))) sawWord = true;
+ else if (sawWord) {if (dir < 0) {dir = 1; moveOnce();} break;}
+ if (dir > 0) if (!moveOnce()) break;
+ }
+ }
+ return {line: line, ch: ch};
}
- function selectAll() {
- var endLine = lines.length - 1;
- setSelection({line: 0, ch: 0}, {line: endLine, ch: lines[endLine].text.length});
+ function moveH(dir, unit) {
+ var pos = dir < 0 ? sel.from : sel.to;
+ if (shiftSelecting || posEq(sel.from, sel.to)) pos = findPosH(dir, unit);
+ setCursor(pos.line, pos.ch, true);
+ }
+ function deleteH(dir, unit) {
+ if (!posEq(sel.from, sel.to)) replaceRange("", sel.from, sel.to);
+ else if (dir < 0) replaceRange("", findPosH(dir, unit), sel.to);
+ else replaceRange("", sel.from, findPosH(dir, unit));
+ userSelChange = true;
}
+ var goalColumn = null;
+ function moveV(dir, unit) {
+ var dist = 0, pos = localCoords(sel.inverted ? sel.from : sel.to, true);
+ if (goalColumn != null) pos.x = goalColumn;
+ if (unit == "page") dist = Math.min(scroller.clientHeight, window.innerHeight || document.documentElement.clientHeight);
+ else if (unit == "line") dist = textHeight();
+ var target = coordsChar(pos.x, pos.y + dist * dir + 2);
+ if (unit == "page") scrollbar.scrollTop += localCoords(target, true).y - pos.y;
+ setCursor(target.line, target.ch, true);
+ goalColumn = pos.x;
+ }
+
function selectWordAt(pos) {
- var line = lines[pos.line].text;
+ var line = getLine(pos.line).text;
var start = pos.ch, end = pos.ch;
- while (start > 0 && /\w/.test(line.charAt(start - 1))) --start;
- while (end < line.length && /\w/.test(line.charAt(end))) ++end;
+ while (start > 0 && isWordChar(line.charAt(start - 1))) --start;
+ while (end < line.length && isWordChar(line.charAt(end))) ++end;
setSelectionUser({line: pos.line, ch: start}, {line: pos.line, ch: end});
}
function selectLine(line) {
- setSelectionUser({line: line, ch: 0}, {line: line, ch: lines[line].text.length});
- }
- function handleEnter() {
- replaceSelection("\n", "end");
- if (options.enterMode != "flat")
- indentLine(sel.from.line, options.enterMode == "keep" ? "prev" : "smart");
+ setSelectionUser({line: line, ch: 0}, clipPos({line: line + 1, ch: 0}));
}
- function handleTab(shift) {
- function indentSelected(mode) {
- if (posEq(sel.from, sel.to)) return indentLine(sel.from.line, mode);
- var e = sel.to.line - (sel.to.ch ? 0 : 1);
- for (var i = sel.from.line; i <= e; ++i) indentLine(i, mode);
- }
- shiftSelecting = null;
- switch (options.tabMode) {
- case "default":
- return false;
- case "indent":
- indentSelected("smart");
- break;
- case "classic":
- if (posEq(sel.from, sel.to)) {
- if (shift) indentLine(sel.from.line, "smart");
- else replaceSelection("\t", "end");
- break;
- }
- case "shift":
- indentSelected(shift ? "subtract" : "add");
- break;
- }
- return true;
- }
- function smartHome() {
- var firstNonWS = Math.max(0, lines[sel.from.line].text.search(/\S/));
- setCursor(sel.from.line, sel.from.ch <= firstNonWS && sel.from.ch ? 0 : firstNonWS, true);
+ function indentSelected(mode) {
+ if (posEq(sel.from, sel.to)) return indentLine(sel.from.line, mode);
+ var e = sel.to.line - (sel.to.ch ? 0 : 1);
+ for (var i = sel.from.line; i <= e; ++i) indentLine(i, mode);
}
function indentLine(n, how) {
+ if (!how) how = "add";
if (how == "smart") {
if (!mode.indent) how = "prev";
else var state = getStateBefore(n);
}
- var line = lines[n], curSpace = line.indentation(), curSpaceString = line.text.match(/^\s*/)[0], indentation;
+ var line = getLine(n), curSpace = line.indentation(options.tabSize),
+ curSpaceString = line.text.match(/^\s*/)[0], indentation;
+ if (how == "smart") {
+ indentation = mode.indent(state, line.text.slice(curSpaceString.length), line.text);
+ if (indentation == Pass) how = "prev";
+ }
if (how == "prev") {
- if (n) indentation = lines[n-1].indentation();
+ if (n) indentation = getLine(n-1).indentation(options.tabSize);
else indentation = 0;
}
- else if (how == "smart") indentation = mode.indent(state, line.text.slice(curSpaceString.length));
else if (how == "add") indentation = curSpace + options.indentUnit;
else if (how == "subtract") indentation = curSpace - options.indentUnit;
indentation = Math.max(0, indentation);
@@ -1117,11 +1434,10 @@ var CodeMirror = (function() {
if (!diff) {
if (sel.from.line != n && sel.to.line != n) return;
var indentString = curSpaceString;
- }
- else {
+ } else {
var indentString = "", pos = 0;
if (options.indentWithTabs)
- for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";}
+ for (var i = Math.floor(indentation / options.tabSize); i; --i) {pos += options.tabSize; indentString += "\t";}
while (pos < indentation) {++pos; indentString += " ";}
}
@@ -1130,8 +1446,7 @@ var CodeMirror = (function() {
function loadMode() {
mode = CodeMirror.getMode(options, options.mode);
- for (var i = 0, l = lines.length; i < l; ++i)
- lines[i].stateAfter = null;
+ doc.iter(0, doc.size, function(line) { line.stateAfter = null; });
work = [0];
startWorker();
}
@@ -1141,35 +1456,56 @@ var CodeMirror = (function() {
if (visible) gutterDirty = true;
else lineDiv.parentNode.style.marginLeft = 0;
}
-
- function markText(from, to, className) {
- from = clipPos(from); to = clipPos(to);
- var set = [];
- function add(line, from, to, className) {
- mark = lines[line].addMark(from, to, className, set);
+ function wrappingChanged(from, to) {
+ if (options.lineWrapping) {
+ wrapper.className += " CodeMirror-wrap";
+ var perLine = scroller.clientWidth / charWidth() - 3;
+ doc.iter(0, doc.size, function(line) {
+ if (line.hidden) return;
+ var guess = Math.ceil(line.text.length / perLine) || 1;
+ if (guess != 1) updateLineHeight(line, guess);
+ });
+ lineSpace.style.width = code.style.width = "";
+ widthForcer.style.left = "";
+ } else {
+ wrapper.className = wrapper.className.replace(" CodeMirror-wrap", "");
+ maxLine = ""; maxLineChanged = true;
+ doc.iter(0, doc.size, function(line) {
+ if (line.height != 1 && !line.hidden) updateLineHeight(line, 1);
+ if (line.text.length > maxLine.length) maxLine = line.text;
+ });
}
- if (from.line == to.line) add(from.line, from.ch, to.ch, className);
- else {
- add(from.line, from.ch, null, className);
- for (var i = from.line + 1, e = to.line; i < e; ++i)
- add(i, 0, null, className);
- add(to.line, 0, to.ch, className);
- }
- changes.push({from: from.line, to: to.line + 1});
- return new TextMarker(set);
+ changes.push({from: 0, to: doc.size});
+ }
+ function makeTab(col) {
+ var w = options.tabSize - col % options.tabSize, cached = tabCache[w];
+ if (cached) return cached;
+ for (var str = '', i = 0; i < w; ++i) str += " ";
+ return (tabCache[w] = {html: str + "", width: w});
+ }
+ function themeChanged() {
+ scroller.className = scroller.className.replace(/\s*cm-s-\S+/g, "") +
+ options.theme.replace(/(^|\s)\s*/g, " cm-s-");
+ }
+ function keyMapChanged() {
+ var style = keyMap[options.keyMap].style;
+ wrapper.className = wrapper.className.replace(/\s*cm-keymap-\S+/g, "") +
+ (style ? " cm-keymap-" + style : "");
}
- function TextMarker(set) { this.set = set; }
+ function TextMarker() { this.set = []; }
TextMarker.prototype.clear = operation(function() {
+ var min = Infinity, max = -Infinity;
for (var i = 0, e = this.set.length; i < e; ++i) {
- var mk = this.set[i].marked;
- for (var j = 0; j < mk.length; ++j) {
- if (mk[j].set == this.set) mk.splice(j--, 1);
- }
+ var line = this.set[i], mk = line.marked;
+ if (!mk || !line.parent) continue;
+ var lineN = lineNo(line);
+ min = Math.min(min, lineN); max = Math.max(max, lineN);
+ for (var j = 0; j < mk.length; ++j)
+ if (mk[j].marker == this) mk.splice(j--, 1);
}
- // We don't know the exact lines that changed. Refreshing is
- // cheaper than finding them.
- changes.push({from: 0, to: lines.length});
+ if (min != Infinity)
+ changes.push({from: min, to: max + 1});
});
TextMarker.prototype.find = function() {
var from, to;
@@ -1177,10 +1513,10 @@ var CodeMirror = (function() {
var line = this.set[i], mk = line.marked;
for (var j = 0; j < mk.length; ++j) {
var mark = mk[j];
- if (mark.set == this.set) {
+ if (mark.marker == this) {
if (mark.from != null || mark.to != null) {
- var found = indexOf(lines, line);
- if (found > -1) {
+ var found = lineNo(line);
+ if (found != null) {
if (mark.from != null) from = {line: found, ch: mark.from};
if (mark.to != null) to = {line: found, ch: mark.to};
}
@@ -1191,45 +1527,113 @@ var CodeMirror = (function() {
return {from: from, to: to};
};
+ function markText(from, to, className) {
+ from = clipPos(from); to = clipPos(to);
+ var tm = new TextMarker();
+ if (!posLess(from, to)) return tm;
+ function add(line, from, to, className) {
+ getLine(line).addMark(new MarkedText(from, to, className, tm));
+ }
+ if (from.line == to.line) add(from.line, from.ch, to.ch, className);
+ else {
+ add(from.line, from.ch, null, className);
+ for (var i = from.line + 1, e = to.line; i < e; ++i)
+ add(i, null, null, className);
+ add(to.line, null, to.ch, className);
+ }
+ changes.push({from: from.line, to: to.line + 1});
+ return tm;
+ }
+
+ function setBookmark(pos) {
+ pos = clipPos(pos);
+ var bm = new Bookmark(pos.ch);
+ getLine(pos.line).addMark(bm);
+ return bm;
+ }
+
+ function findMarksAt(pos) {
+ pos = clipPos(pos);
+ var markers = [], marked = getLine(pos.line).marked;
+ if (!marked) return markers;
+ for (var i = 0, e = marked.length; i < e; ++i) {
+ var m = marked[i];
+ if ((m.from == null || m.from <= pos.ch) &&
+ (m.to == null || m.to >= pos.ch))
+ markers.push(m.marker || m);
+ }
+ return markers;
+ }
+
function addGutterMarker(line, text, className) {
- if (typeof line == "number") line = lines[clipLine(line)];
+ if (typeof line == "number") line = getLine(clipLine(line));
line.gutterMarker = {text: text, style: className};
gutterDirty = true;
return line;
}
function removeGutterMarker(line) {
- if (typeof line == "number") line = lines[clipLine(line)];
+ if (typeof line == "number") line = getLine(clipLine(line));
line.gutterMarker = null;
gutterDirty = true;
}
- function setLineClass(line, className) {
- if (typeof line == "number") {
- var no = line;
- line = lines[clipLine(line)];
- }
- else {
- var no = indexOf(lines, line);
- if (no == -1) return null;
- }
- if (line.className != className) {
- line.className = className;
- changes.push({from: no, to: no + 1});
- }
+
+ function changeLine(handle, op) {
+ var no = handle, line = handle;
+ if (typeof handle == "number") line = getLine(clipLine(handle));
+ else no = lineNo(handle);
+ if (no == null) return null;
+ if (op(line, no)) changes.push({from: no, to: no + 1});
+ else return null;
return line;
}
+ function setLineClass(handle, className, bgClassName) {
+ return changeLine(handle, function(line) {
+ if (line.className != className || line.bgClassName != bgClassName) {
+ line.className = className;
+ line.bgClassName = bgClassName;
+ return true;
+ }
+ });
+ }
+ function setLineHidden(handle, hidden) {
+ return changeLine(handle, function(line, no) {
+ if (line.hidden != hidden) {
+ line.hidden = hidden;
+ if (!options.lineWrapping) {
+ var l = line.text;
+ if (hidden && l.length == maxLine.length) {
+ updateMaxLine = true;
+ } else if (!hidden && l.length > maxLine.length) {
+ maxLine = l; maxWidth = null; updateMaxLine = false;
+ }
+ }
+ updateLineHeight(line, hidden ? 0 : 1);
+ var fline = sel.from.line, tline = sel.to.line;
+ if (hidden && (fline == no || tline == no)) {
+ var from = fline == no ? skipHidden({line: fline, ch: 0}, fline, 0) : sel.from;
+ var to = tline == no ? skipHidden({line: tline, ch: 0}, tline, 0) : sel.to;
+ // Can't hide the last visible line, we'd have no place to put the cursor
+ if (!to) return;
+ setSelection(from, to);
+ }
+ return (gutterDirty = true);
+ }
+ });
+ }
function lineInfo(line) {
if (typeof line == "number") {
+ if (!isLine(line)) return null;
var n = line;
- line = lines[line];
+ line = getLine(line);
if (!line) return null;
- }
- else {
- var n = indexOf(lines, line);
- if (n == -1) return null;
+ } else {
+ var n = lineNo(line);
+ if (n == null) return null;
}
var marker = line.gutterMarker;
- return {line: n, text: line.text, markerText: marker && marker.text, markerClass: marker && marker.style};
+ return {line: n, handle: line, text: line.text, markerText: marker && marker.text,
+ markerClass: marker && marker.style, lineClass: line.className, bgClass: line.bgClassName};
}
function stringWidth(str) {
@@ -1239,21 +1643,15 @@ var CodeMirror = (function() {
}
// These are used to go from pixel positions to character
// positions, taking varying character widths into account.
- function charX(line, pos) {
- if (pos == 0) return 0;
- measure.innerHTML = "" + lines[line].getHTML(null, null, false, pos) + "
";
- return measure.firstChild.firstChild.offsetWidth;
- }
function charFromX(line, x) {
if (x <= 0) return 0;
- var lineObj = lines[line], text = lineObj.text;
+ var lineObj = getLine(line), text = lineObj.text;
function getX(len) {
- measure.innerHTML = "" + lineObj.getHTML(null, null, false, len) + "
";
- return measure.firstChild.firstChild.offsetWidth;
+ return measureLine(lineObj, len).left;
}
var from = 0, fromX = 0, to = text.length, toX;
// Guess a suitable upper bound for our search.
- var estimated = Math.min(to, Math.ceil(x / stringWidth("x")));
+ var estimated = Math.min(to, Math.ceil(x / charWidth()));
for (;;) {
var estX = getX(estimated);
if (estX <= x && estimated < to) estimated = Math.min(to, Math.ceil(estimated * 1.2));
@@ -1272,20 +1670,95 @@ var CodeMirror = (function() {
}
}
+ var tempId = "CodeMirror-temp-" + Math.floor(Math.random() * 0xffffff).toString(16);
+ function measureLine(line, ch) {
+ if (ch == 0) return {top: 0, left: 0};
+ var wbr = options.lineWrapping && ch < line.text.length &&
+ spanAffectsWrapping.test(line.text.slice(ch - 1, ch + 1));
+ measure.innerHTML = "" + line.getHTML(makeTab, ch, tempId, wbr) + "
";
+ var elt = document.getElementById(tempId);
+ var top = elt.offsetTop, left = elt.offsetLeft;
+ // Older IEs report zero offsets for spans directly after a wrap
+ if (ie && top == 0 && left == 0) {
+ var backup = document.createElement("span");
+ backup.innerHTML = "x";
+ elt.parentNode.insertBefore(backup, elt.nextSibling);
+ top = backup.offsetTop;
+ }
+ return {top: top, left: left};
+ }
function localCoords(pos, inLineWrap) {
- var lh = lineHeight(), line = pos.line - (inLineWrap ? showingFrom : 0);
- return {x: charX(pos.line, pos.ch), y: line * lh, yBot: (line + 1) * lh};
+ var x, lh = textHeight(), y = lh * (heightAtLine(doc, pos.line) - (inLineWrap ? displayOffset : 0));
+ if (pos.ch == 0) x = 0;
+ else {
+ var sp = measureLine(getLine(pos.line), pos.ch);
+ x = sp.left;
+ if (options.lineWrapping) y += Math.max(0, sp.top);
+ }
+ return {x: x, y: y, yBot: y + lh};
+ }
+ // Coords must be lineSpace-local
+ function coordsChar(x, y) {
+ if (y < 0) y = 0;
+ var th = textHeight(), cw = charWidth(), heightPos = displayOffset + Math.floor(y / th);
+ var lineNo = lineAtHeight(doc, heightPos);
+ if (lineNo >= doc.size) return {line: doc.size - 1, ch: getLine(doc.size - 1).text.length};
+ var lineObj = getLine(lineNo), text = lineObj.text;
+ var tw = options.lineWrapping, innerOff = tw ? heightPos - heightAtLine(doc, lineNo) : 0;
+ if (x <= 0 && innerOff == 0) return {line: lineNo, ch: 0};
+ function getX(len) {
+ var sp = measureLine(lineObj, len);
+ if (tw) {
+ var off = Math.round(sp.top / th);
+ return Math.max(0, sp.left + (off - innerOff) * scroller.clientWidth);
+ }
+ return sp.left;
+ }
+ var from = 0, fromX = 0, to = text.length, toX;
+ // Guess a suitable upper bound for our search.
+ var estimated = Math.min(to, Math.ceil((x + innerOff * scroller.clientWidth * .9) / cw));
+ for (;;) {
+ var estX = getX(estimated);
+ if (estX <= x && estimated < to) estimated = Math.min(to, Math.ceil(estimated * 1.2));
+ else {toX = estX; to = estimated; break;}
+ }
+ if (x > toX) return {line: lineNo, ch: to};
+ // Try to guess a suitable lower bound as well.
+ estimated = Math.floor(to * 0.8); estX = getX(estimated);
+ if (estX < x) {from = estimated; fromX = estX;}
+ // Do a binary search between these bounds.
+ for (;;) {
+ if (to - from <= 1) return {line: lineNo, ch: (toX - x > x - fromX) ? from : to};
+ var middle = Math.ceil((from + to) / 2), middleX = getX(middle);
+ if (middleX > x) {to = middle; toX = middleX;}
+ else {from = middle; fromX = middleX;}
+ }
}
function pageCoords(pos) {
var local = localCoords(pos, true), off = eltOffset(lineSpace);
return {x: off.left + local.x, y: off.top + local.y, yBot: off.top + local.yBot};
}
- function lineHeight() {
- var nlines = lineDiv.childNodes.length;
- if (nlines) return (lineDiv.offsetHeight / nlines) || 1;
- measure.innerHTML = "x
";
- return measure.firstChild.offsetHeight || 1;
+ var cachedHeight, cachedHeightFor, measureText;
+ function textHeight() {
+ if (measureText == null) {
+ measureText = "";
+ for (var i = 0; i < 49; ++i) measureText += "x
";
+ measureText += "x
";
+ }
+ var offsetHeight = lineDiv.clientHeight;
+ if (offsetHeight == cachedHeightFor) return cachedHeight;
+ cachedHeightFor = offsetHeight;
+ measure.innerHTML = measureText;
+ cachedHeight = measure.firstChild.offsetHeight / 50 || 1;
+ measure.innerHTML = "";
+ return cachedHeight;
+ }
+ var cachedWidth, cachedWidthFor = 0;
+ function charWidth() {
+ if (scroller.clientWidth == cachedWidthFor) return cachedWidth;
+ cachedWidthFor = scroller.clientWidth;
+ return (cachedWidth = stringWidth("x"));
}
function paddingTop() {return lineSpace.offsetTop;}
function paddingLeft() {return lineSpace.offsetLeft;}
@@ -1300,12 +1773,11 @@ var CodeMirror = (function() {
if (!liberal && (x - offW.left > scroller.clientWidth || y - offW.top > scroller.clientHeight))
return null;
var offL = eltOffset(lineSpace, true);
- var line = showingFrom + Math.floor((y - offL.top) / lineHeight());
- return clipPos({line: line, ch: charFromX(clipLine(line), x - offL.left)});
+ return coordsChar(x - offL.left, y - offL.top);
}
function onContextMenu(e) {
- var pos = posFromMouse(e);
- if (!pos || window.opera) return; // Opera is difficult.
+ var pos = posFromMouse(e), scrollPos = scrollbar.scrollTop;
+ if (!pos || opera) return; // Opera is difficult.
if (posEq(sel.from, sel.to) || posLess(pos, sel.from) || !posLess(pos, sel.to))
operation(setCursor)(pos.line, pos.ch);
@@ -1317,14 +1789,15 @@ var CodeMirror = (function() {
leaveInputAlone = true;
var val = input.value = getSelection();
focusInput();
- setSelRange(input, 0, input.value.length);
+ selectInput(input);
function rehide() {
var newVal = splitLines(input.value).join("\n");
- if (newVal != val) operation(replaceSelection)(newVal, "end");
+ if (newVal != val && !options.readOnly) operation(replaceSelection)(newVal, "end");
inputDiv.style.position = "relative";
input.style.cssText = oldCSS;
+ if (ie_lt9) scrollbar.scrollTop = scrollPos;
leaveInputAlone = false;
- prepareInput();
+ resetInput(true);
slowPoll();
}
@@ -1334,8 +1807,7 @@ var CodeMirror = (function() {
mouseup();
setTimeout(rehide, 20);
}, true);
- }
- else {
+ } else {
setTimeout(rehide, 50);
}
}
@@ -1352,7 +1824,7 @@ var CodeMirror = (function() {
var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<"};
function matchBrackets(autoclear) {
- var head = sel.inverted ? sel.from : sel.to, line = lines[head.line], pos = head.ch - 1;
+ var head = sel.inverted ? sel.from : sel.to, line = getLine(head.line), pos = head.ch - 1;
var match = (pos >= 0 && matching[line.text.charAt(pos)]) || matching[line.text.charAt(++pos)];
if (!match) return;
var ch = match.charAt(0), forward = match.charAt(1) == ">", d = forward ? 1 : -1, st = line.styles;
@@ -1365,7 +1837,7 @@ var CodeMirror = (function() {
var st = line.styles, pos = forward ? 0 : line.text.length - 1, cur;
for (var i = forward ? 0 : st.length - 2, e = forward ? st.length : -2; i != e; i += 2*d) {
var text = st[i];
- if (st[i+1] != null && st[i+1] != style) {pos += d * text.length; continue;}
+ if (st[i+1] != style) {pos += d * text.length; continue;}
for (var j = forward ? 0 : text.length - 1, te = forward ? text.length : -1; j != te; j += d, pos+=d) {
if (pos >= from && pos < to && re.test(cur = text.charAt(j))) {
var match = matching[cur];
@@ -1376,8 +1848,8 @@ var CodeMirror = (function() {
}
}
}
- for (var i = head.line, e = forward ? Math.min(i + 100, lines.length) : Math.max(-1, i - 100); i != e; i+=d) {
- var line = lines[i], first = i == head.line;
+ for (var i = head.line, e = forward ? Math.min(i + 100, doc.size) : Math.max(-1, i - 100); i != e; i+=d) {
+ var line = getLine(i), first = i == head.line;
var found = scan(line, first && forward ? pos + 1 : 0, first && !forward ? pos : line.text.length);
if (found) break;
}
@@ -1399,9 +1871,9 @@ var CodeMirror = (function() {
var minindent, minline;
for (var search = n, lim = n - 40; search > lim; --search) {
if (search == 0) return 0;
- var line = lines[search-1];
+ var line = getLine(search-1);
if (line.stateAfter) return search;
- var indented = line.indentation();
+ var indented = line.indentation(options.tabSize);
if (minline == null || minindent > indented) {
minline = search - 1;
minindent = indented;
@@ -1410,56 +1882,62 @@ var CodeMirror = (function() {
return minline;
}
function getStateBefore(n) {
- var start = findStartLine(n), state = start && lines[start-1].stateAfter;
+ var start = findStartLine(n), state = start && getLine(start-1).stateAfter;
if (!state) state = startState(mode);
else state = copyState(mode, state);
- for (var i = start; i < n; ++i) {
- var line = lines[i];
- line.highlight(mode, state);
+ doc.iter(start, n, function(line) {
+ line.highlight(mode, state, options.tabSize);
line.stateAfter = copyState(mode, state);
- }
- changes.push({from: start, to: n});
- if (n < lines.length && !lines[n].stateAfter) work.push(n);
+ });
+ if (start < n) changes.push({from: start, to: n});
+ if (n < doc.size && !getLine(n).stateAfter) work.push(n);
return state;
}
function highlightLines(start, end) {
var state = getStateBefore(start);
- for (var i = start; i < end; ++i) {
- var line = lines[i];
- line.highlight(mode, state);
+ doc.iter(start, end, function(line) {
+ line.highlight(mode, state, options.tabSize);
line.stateAfter = copyState(mode, state);
- }
+ });
}
function highlightWorker() {
var end = +new Date + options.workTime;
var foundWork = work.length;
while (work.length) {
- if (!lines[showingFrom].stateAfter) var task = showingFrom;
+ if (!getLine(showingFrom).stateAfter) var task = showingFrom;
else var task = work.pop();
- if (task >= lines.length) continue;
- var start = findStartLine(task), state = start && lines[start-1].stateAfter;
+ if (task >= doc.size) continue;
+ var start = findStartLine(task), state = start && getLine(start-1).stateAfter;
if (state) state = copyState(mode, state);
else state = startState(mode);
- var unchanged = 0, compare = mode.compareStates, realChange = false;
- for (var i = start, l = lines.length; i < l; ++i) {
- var line = lines[i], hadState = line.stateAfter;
+ var unchanged = 0, compare = mode.compareStates, realChange = false,
+ i = start, bail = false;
+ doc.iter(i, doc.size, function(line) {
+ var hadState = line.stateAfter;
if (+new Date > end) {
work.push(i);
startWorker(options.workDelay);
if (realChange) changes.push({from: task, to: i + 1});
- return;
+ return (bail = true);
}
- var changed = line.highlight(mode, state);
+ var changed = line.highlight(mode, state, options.tabSize);
if (changed) realChange = true;
line.stateAfter = copyState(mode, state);
+ var done = null;
if (compare) {
- if (hadState && compare(hadState, state)) break;
- } else {
+ var same = hadState && compare(hadState, state);
+ if (same != Pass) done = !!same;
+ }
+ if (done == null) {
if (changed !== false || !hadState) unchanged = 0;
- else if (++unchanged > 3) break;
+ else if (++unchanged > 3 && (!mode.indent || mode.indent(hadState, "") == mode.indent(state, "")))
+ done = true;
}
- }
+ if (done) return true;
+ ++i;
+ });
+ if (bail) return;
if (realChange) changes.push({from: task, to: i + 1});
}
if (foundWork && options.onHighlightComplete)
@@ -1475,35 +1953,44 @@ var CodeMirror = (function() {
// be awkward, slow, and error-prone), but instead updates are
// batched and then all combined and executed at once.
function startOperation() {
- updateInput = null; changes = []; textChanged = selectionChanged = false;
+ updateInput = userSelChange = textChanged = null;
+ changes = []; selectionChanged = false; callbacks = [];
}
function endOperation() {
- var reScroll = false;
- if (selectionChanged) reScroll = !scrollCursorIntoView();
- if (changes.length) updateDisplay(changes);
+ if (updateMaxLine) computeMaxLength();
+ if (maxLineChanged && !options.lineWrapping) {
+ widthForcer.style.left = stringWidth(maxLine) + "px";
+ maxLineChanged = false;
+ }
+ var newScrollPos, updated;
+ if (selectionChanged) {
+ var coords = calculateCursorCoords();
+ newScrollPos = calculateScrollPos(coords.x, coords.y, coords.x, coords.yBot);
+ }
+ if (changes.length) updated = updateDisplay(changes, true, (newScrollPos ? newScrollPos.scrollTop : null));
else {
- if (selectionChanged) updateCursor();
+ if (selectionChanged) updateSelection();
if (gutterDirty) updateGutter();
}
- if (reScroll) scrollCursorIntoView();
+ if (newScrollPos) scrollCursorIntoView();
if (selectionChanged) {scrollEditorIntoView(); restartBlink();}
- // updateInput can be set to a boolean value to force/prevent an
- // update.
if (focused && !leaveInputAlone &&
(updateInput === true || (updateInput !== false && selectionChanged)))
- prepareInput();
+ resetInput(userSelChange);
if (selectionChanged && options.matchBrackets)
setTimeout(operation(function() {
if (bracketHighlighted) {bracketHighlighted(); bracketHighlighted = null;}
- matchBrackets(false);
+ if (posEq(sel.from, sel.to)) matchBrackets(false);
}), 20);
- var tc = textChanged; // textChanged can be reset by cursoractivity callback
- if (selectionChanged && options.onCursorActivity)
+ var sc = selectionChanged, cbs = callbacks; // these can be reset by callbacks
+ if (textChanged && options.onChange && instance)
+ options.onChange(instance, textChanged);
+ if (sc && options.onCursorActivity)
options.onCursorActivity(instance);
- if (tc && options.onChange && instance)
- options.onChange(instance, tc);
+ for (var i = 0; i < cbs.length; ++i) cbs[i](instance);
+ if (updated && options.onUpdate) options.onUpdate(instance);
}
var nestedOperation = 0;
function operation(f) {
@@ -1515,120 +2002,11 @@ var CodeMirror = (function() {
};
}
- function SearchCursor(query, pos, caseFold) {
- this.atOccurrence = false;
- if (caseFold == null) caseFold = typeof query == "string" && query == query.toLowerCase();
-
- if (pos && typeof pos == "object") pos = clipPos(pos);
- else pos = {line: 0, ch: 0};
- this.pos = {from: pos, to: pos};
-
- // The matches method is filled in based on the type of query.
- // It takes a position and a direction, and returns an object
- // describing the next occurrence of the query, or null if no
- // more matches were found.
- if (typeof query != "string") // Regexp match
- this.matches = function(reverse, pos) {
- if (reverse) {
- var line = lines[pos.line].text.slice(0, pos.ch), match = line.match(query), start = 0;
- while (match) {
- var ind = line.indexOf(match[0]);
- start += ind;
- line = line.slice(ind + 1);
- var newmatch = line.match(query);
- if (newmatch) match = newmatch;
- else break;
- start++;
- }
- }
- else {
- var line = lines[pos.line].text.slice(pos.ch), match = line.match(query),
- start = match && pos.ch + line.indexOf(match[0]);
- }
- if (match)
- return {from: {line: pos.line, ch: start},
- to: {line: pos.line, ch: start + match[0].length},
- match: match};
- };
- else { // String query
- if (caseFold) query = query.toLowerCase();
- var fold = caseFold ? function(str){return str.toLowerCase();} : function(str){return str;};
- var target = query.split("\n");
- // Different methods for single-line and multi-line queries
- if (target.length == 1)
- this.matches = function(reverse, pos) {
- var line = fold(lines[pos.line].text), len = query.length, match;
- if (reverse ? (pos.ch >= len && (match = line.lastIndexOf(query, pos.ch - len)) != -1)
- : (match = line.indexOf(query, pos.ch)) != -1)
- return {from: {line: pos.line, ch: match},
- to: {line: pos.line, ch: match + len}};
- };
- else
- this.matches = function(reverse, pos) {
- var ln = pos.line, idx = (reverse ? target.length - 1 : 0), match = target[idx], line = fold(lines[ln].text);
- var offsetA = (reverse ? line.indexOf(match) + match.length : line.lastIndexOf(match));
- if (reverse ? offsetA >= pos.ch || offsetA != match.length
- : offsetA <= pos.ch || offsetA != line.length - match.length)
- return;
- for (;;) {
- if (reverse ? !ln : ln == lines.length - 1) return;
- line = fold(lines[ln += reverse ? -1 : 1].text);
- match = target[reverse ? --idx : ++idx];
- if (idx > 0 && idx < target.length - 1) {
- if (line != match) return;
- else continue;
- }
- var offsetB = (reverse ? line.lastIndexOf(match) : line.indexOf(match) + match.length);
- if (reverse ? offsetB != line.length - match.length : offsetB != match.length)
- return;
- var start = {line: pos.line, ch: offsetA}, end = {line: ln, ch: offsetB};
- return {from: reverse ? end : start, to: reverse ? start : end};
- }
- };
- }
+ function compoundChange(f) {
+ history.startCompound();
+ try { return f(); } finally { history.endCompound(); }
}
- SearchCursor.prototype = {
- findNext: function() {return this.find(false);},
- findPrevious: function() {return this.find(true);},
-
- find: function(reverse) {
- var self = this, pos = clipPos(reverse ? this.pos.from : this.pos.to);
- function savePosAndFail(line) {
- var pos = {line: line, ch: 0};
- self.pos = {from: pos, to: pos};
- self.atOccurrence = false;
- return false;
- }
-
- for (;;) {
- if (this.pos = this.matches(reverse, pos)) {
- this.atOccurrence = true;
- return this.pos.match || true;
- }
- if (reverse) {
- if (!pos.line) return savePosAndFail(0);
- pos = {line: pos.line-1, ch: lines[pos.line-1].text.length};
- }
- else {
- if (pos.line == lines.length - 1) return savePosAndFail(lines.length);
- pos = {line: pos.line+1, ch: 0};
- }
- }
- },
-
- from: function() {if (this.atOccurrence) return copyPos(this.pos.from);},
- to: function() {if (this.atOccurrence) return copyPos(this.pos.to);},
-
- replace: function(newText) {
- var self = this;
- if (this.atOccurrence)
- operation(function() {
- self.pos.to = replaceRange(newText, self.pos.from, self.pos.to);
- })();
- }
- };
-
for (var ext in extensions)
if (extensions.propertyIsEnumerable(ext) &&
!instance.propertyIsEnumerable(ext))
@@ -1643,51 +2021,66 @@ var CodeMirror = (function() {
theme: "default",
indentUnit: 2,
indentWithTabs: false,
- tabMode: "classic",
- enterMode: "indent",
+ smartIndent: true,
+ tabSize: 4,
+ keyMap: "default",
+ extraKeys: null,
electricChars: true,
+ autoClearEmptyLines: false,
onKeyEvent: null,
+ onDragEvent: null,
+ lineWrapping: false,
lineNumbers: false,
gutter: false,
fixedGutter: false,
firstLineNumber: 1,
readOnly: false,
- smartHome: true,
+ dragDrop: true,
onChange: null,
onCursorActivity: null,
onGutterClick: null,
onHighlightComplete: null,
+ onUpdate: null,
onFocus: null, onBlur: null, onScroll: null,
matchBrackets: false,
workTime: 100,
workDelay: 200,
+ pollInterval: 100,
undoDepth: 40,
tabindex: null,
- document: window.document
+ autofocus: null
};
+ var ios = /AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent);
+ var mac = ios || /Mac/.test(navigator.platform);
+ var win = /Win/.test(navigator.platform);
+
// Known modes, by name and by MIME
- var modes = {}, mimeModes = {};
+ var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};
CodeMirror.defineMode = function(name, mode) {
if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name;
+ if (arguments.length > 2) {
+ mode.dependencies = [];
+ for (var i = 2; i < arguments.length; ++i) mode.dependencies.push(arguments[i]);
+ }
modes[name] = mode;
};
CodeMirror.defineMIME = function(mime, spec) {
mimeModes[mime] = spec;
};
- CodeMirror.getMode = function(options, spec) {
+ CodeMirror.resolveMode = function(spec) {
if (typeof spec == "string" && mimeModes.hasOwnProperty(spec))
spec = mimeModes[spec];
- if (typeof spec == "string")
- var mname = spec, config = {};
- else if (spec != null)
- var mname = spec.name, config = spec;
- var mfactory = modes[mname];
- if (!mfactory) {
- if (window.console) console.warn("No mode " + mname + " found, falling back to plain text.");
- return CodeMirror.getMode(options, "text/plain");
- }
- return mfactory(options, config || {});
+ else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec))
+ return CodeMirror.resolveMode("application/xml");
+ if (typeof spec == "string") return {name: spec};
+ else return spec || {name: "null"};
+ };
+ CodeMirror.getMode = function(options, spec) {
+ var spec = CodeMirror.resolveMode(spec);
+ var mfactory = modes[spec.name];
+ if (!mfactory) return CodeMirror.getMode(options, "text/plain");
+ return mfactory(options, spec);
};
CodeMirror.listModes = function() {
var list = [];
@@ -1702,16 +2095,137 @@ var CodeMirror = (function() {
return list;
};
- var extensions = {};
+ var extensions = CodeMirror.extensions = {};
CodeMirror.defineExtension = function(name, func) {
extensions[name] = func;
};
+ var commands = CodeMirror.commands = {
+ selectAll: function(cm) {cm.setSelection({line: 0, ch: 0}, {line: cm.lineCount() - 1});},
+ killLine: function(cm) {
+ var from = cm.getCursor(true), to = cm.getCursor(false), sel = !posEq(from, to);
+ if (!sel && cm.getLine(from.line).length == from.ch) cm.replaceRange("", from, {line: from.line + 1, ch: 0});
+ else cm.replaceRange("", from, sel ? to : {line: from.line});
+ },
+ deleteLine: function(cm) {var l = cm.getCursor().line; cm.replaceRange("", {line: l, ch: 0}, {line: l});},
+ undo: function(cm) {cm.undo();},
+ redo: function(cm) {cm.redo();},
+ goDocStart: function(cm) {cm.setCursor(0, 0, true);},
+ goDocEnd: function(cm) {cm.setSelection({line: cm.lineCount() - 1}, null, true);},
+ goLineStart: function(cm) {cm.setCursor(cm.getCursor().line, 0, true);},
+ goLineStartSmart: function(cm) {
+ var cur = cm.getCursor();
+ var text = cm.getLine(cur.line), firstNonWS = Math.max(0, text.search(/\S/));
+ cm.setCursor(cur.line, cur.ch <= firstNonWS && cur.ch ? 0 : firstNonWS, true);
+ },
+ goLineEnd: function(cm) {cm.setSelection({line: cm.getCursor().line}, null, true);},
+ goLineUp: function(cm) {cm.moveV(-1, "line");},
+ goLineDown: function(cm) {cm.moveV(1, "line");},
+ goPageUp: function(cm) {cm.moveV(-1, "page");},
+ goPageDown: function(cm) {cm.moveV(1, "page");},
+ goCharLeft: function(cm) {cm.moveH(-1, "char");},
+ goCharRight: function(cm) {cm.moveH(1, "char");},
+ goColumnLeft: function(cm) {cm.moveH(-1, "column");},
+ goColumnRight: function(cm) {cm.moveH(1, "column");},
+ goWordLeft: function(cm) {cm.moveH(-1, "word");},
+ goWordRight: function(cm) {cm.moveH(1, "word");},
+ delCharLeft: function(cm) {cm.deleteH(-1, "char");},
+ delCharRight: function(cm) {cm.deleteH(1, "char");},
+ delWordLeft: function(cm) {cm.deleteH(-1, "word");},
+ delWordRight: function(cm) {cm.deleteH(1, "word");},
+ indentAuto: function(cm) {cm.indentSelection("smart");},
+ indentMore: function(cm) {cm.indentSelection("add");},
+ indentLess: function(cm) {cm.indentSelection("subtract");},
+ insertTab: function(cm) {cm.replaceSelection("\t", "end");},
+ defaultTab: function(cm) {
+ if (cm.somethingSelected()) cm.indentSelection("add");
+ else cm.replaceSelection("\t", "end");
+ },
+ transposeChars: function(cm) {
+ var cur = cm.getCursor(), line = cm.getLine(cur.line);
+ if (cur.ch > 0 && cur.ch < line.length - 1)
+ cm.replaceRange(line.charAt(cur.ch) + line.charAt(cur.ch - 1),
+ {line: cur.line, ch: cur.ch - 1}, {line: cur.line, ch: cur.ch + 1});
+ },
+ newlineAndIndent: function(cm) {
+ cm.replaceSelection("\n", "end");
+ cm.indentLine(cm.getCursor().line);
+ },
+ toggleOverwrite: function(cm) {cm.toggleOverwrite();}
+ };
+
+ var keyMap = CodeMirror.keyMap = {};
+ keyMap.basic = {
+ "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
+ "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
+ "Delete": "delCharRight", "Backspace": "delCharLeft", "Tab": "defaultTab", "Shift-Tab": "indentAuto",
+ "Enter": "newlineAndIndent", "Insert": "toggleOverwrite"
+ };
+ // Note that the save and find-related commands aren't defined by
+ // default. Unknown commands are simply ignored.
+ keyMap.pcDefault = {
+ "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
+ "Ctrl-Home": "goDocStart", "Alt-Up": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Down": "goDocEnd",
+ "Ctrl-Left": "goWordLeft", "Ctrl-Right": "goWordRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
+ "Ctrl-Backspace": "delWordLeft", "Ctrl-Delete": "delWordRight", "Ctrl-S": "save", "Ctrl-F": "find",
+ "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
+ "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
+ fallthrough: "basic"
+ };
+ keyMap.macDefault = {
+ "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
+ "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goWordLeft",
+ "Alt-Right": "goWordRight", "Cmd-Left": "goLineStart", "Cmd-Right": "goLineEnd", "Alt-Backspace": "delWordLeft",
+ "Ctrl-Alt-Backspace": "delWordRight", "Alt-Delete": "delWordRight", "Cmd-S": "save", "Cmd-F": "find",
+ "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
+ "Cmd-[": "indentLess", "Cmd-]": "indentMore",
+ fallthrough: ["basic", "emacsy"]
+ };
+ keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
+ keyMap.emacsy = {
+ "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
+ "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
+ "Ctrl-V": "goPageUp", "Shift-Ctrl-V": "goPageDown", "Ctrl-D": "delCharRight", "Ctrl-H": "delCharLeft",
+ "Alt-D": "delWordRight", "Alt-Backspace": "delWordLeft", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars"
+ };
+
+ function getKeyMap(val) {
+ if (typeof val == "string") return keyMap[val];
+ else return val;
+ }
+ function lookupKey(name, extraMap, map, handle, stop) {
+ function lookup(map) {
+ map = getKeyMap(map);
+ var found = map[name];
+ if (found != null && handle(found)) return true;
+ if (map.nofallthrough) {
+ if (stop) stop();
+ return true;
+ }
+ var fallthrough = map.fallthrough;
+ if (fallthrough == null) return false;
+ if (Object.prototype.toString.call(fallthrough) != "[object Array]")
+ return lookup(fallthrough);
+ for (var i = 0, e = fallthrough.length; i < e; ++i) {
+ if (lookup(fallthrough[i])) return true;
+ }
+ return false;
+ }
+ if (extraMap && lookup(extraMap)) return true;
+ return lookup(map);
+ }
+ function isModifierKey(event) {
+ var name = keyNames[e_prop(event, "keyCode")];
+ return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod";
+ }
+
CodeMirror.fromTextArea = function(textarea, options) {
if (!options) options = {};
options.value = textarea.value;
if (!options.tabindex && textarea.tabindex)
options.tabindex = textarea.tabindex;
+ if (options.autofocus == null && textarea.getAttribute("autofocus") != null)
+ options.autofocus = true;
function save() {textarea.value = instance.getValue();}
if (textarea.form) {
@@ -1734,6 +2248,7 @@ var CodeMirror = (function() {
textarea.parentNode.insertBefore(node, textarea.nextSibling);
}, options);
instance.save = save;
+ instance.getTextArea = function() { return textarea; };
instance.toTextArea = function() {
save();
textarea.parentNode.removeChild(instance.getWrapperElement());
@@ -1760,16 +2275,17 @@ var CodeMirror = (function() {
}
return nstate;
}
- CodeMirror.startState = startState;
+ CodeMirror.copyState = copyState;
function startState(mode, a1, a2) {
return mode.startState ? mode.startState(a1, a2) : true;
}
- CodeMirror.copyState = copyState;
+ CodeMirror.startState = startState;
// The character stream used by a mode's parser.
- function StringStream(string) {
+ function StringStream(string, tabSize) {
this.pos = this.start = 0;
this.string = string;
+ this.tabSize = tabSize || 8;
}
StringStream.prototype = {
eol: function() {return this.pos >= this.string.length;},
@@ -1801,8 +2317,8 @@ var CodeMirror = (function() {
if (found > -1) {this.pos = found; return true;}
},
backUp: function(n) {this.pos -= n;},
- column: function() {return countColumn(this.string, this.start);},
- indentation: function() {return countColumn(this.string);},
+ column: function() {return countColumn(this.string, this.start, this.tabSize);},
+ indentation: function() {return countColumn(this.string, null, this.tabSize);},
match: function(pattern, consume, caseInsensitive) {
if (typeof pattern == "string") {
function cased(str) {return caseInsensitive ? str.toLowerCase() : str;}
@@ -1810,8 +2326,7 @@ var CodeMirror = (function() {
if (consume !== false) this.pos += pattern.length;
return true;
}
- }
- else {
+ } else {
var match = this.string.slice(this.pos).match(pattern);
if (match && consume !== false) this.pos += match[0].length;
return match;
@@ -1821,22 +2336,86 @@ var CodeMirror = (function() {
};
CodeMirror.StringStream = StringStream;
+ function MarkedText(from, to, className, marker) {
+ this.from = from; this.to = to; this.style = className; this.marker = marker;
+ }
+ MarkedText.prototype = {
+ attach: function(line) { this.marker.set.push(line); },
+ detach: function(line) {
+ var ix = indexOf(this.marker.set, line);
+ if (ix > -1) this.marker.set.splice(ix, 1);
+ },
+ split: function(pos, lenBefore) {
+ if (this.to <= pos && this.to != null) return null;
+ var from = this.from < pos || this.from == null ? null : this.from - pos + lenBefore;
+ var to = this.to == null ? null : this.to - pos + lenBefore;
+ return new MarkedText(from, to, this.style, this.marker);
+ },
+ dup: function() { return new MarkedText(null, null, this.style, this.marker); },
+ clipTo: function(fromOpen, from, toOpen, to, diff) {
+ if (fromOpen && to > this.from && (to < this.to || this.to == null))
+ this.from = null;
+ else if (this.from != null && this.from >= from)
+ this.from = Math.max(to, this.from) + diff;
+ if (toOpen && (from < this.to || this.to == null) && (from > this.from || this.from == null))
+ this.to = null;
+ else if (this.to != null && this.to > from)
+ this.to = to < this.to ? this.to + diff : from;
+ },
+ isDead: function() { return this.from != null && this.to != null && this.from >= this.to; },
+ sameSet: function(x) { return this.marker == x.marker; }
+ };
+
+ function Bookmark(pos) {
+ this.from = pos; this.to = pos; this.line = null;
+ }
+ Bookmark.prototype = {
+ attach: function(line) { this.line = line; },
+ detach: function(line) { if (this.line == line) this.line = null; },
+ split: function(pos, lenBefore) {
+ if (pos < this.from) {
+ this.from = this.to = (this.from - pos) + lenBefore;
+ return this;
+ }
+ },
+ isDead: function() { return this.from > this.to; },
+ clipTo: function(fromOpen, from, toOpen, to, diff) {
+ if ((fromOpen || from < this.from) && (toOpen || to > this.to)) {
+ this.from = 0; this.to = -1;
+ } else if (this.from > from) {
+ this.from = this.to = Math.max(to, this.from) + diff;
+ }
+ },
+ sameSet: function(x) { return false; },
+ find: function() {
+ if (!this.line || !this.line.parent) return null;
+ return {line: lineNo(this.line), ch: this.from};
+ },
+ clear: function() {
+ if (this.line) {
+ var found = indexOf(this.line.marked, this);
+ if (found != -1) this.line.marked.splice(found, 1);
+ this.line = null;
+ }
+ }
+ };
+
// Line objects. These hold state related to a line, including
// highlighting info (the styles array).
function Line(text, styles) {
this.styles = styles || [text, null];
- this.stateAfter = null;
this.text = text;
- this.marked = this.gutterMarker = this.className = null;
+ this.height = 1;
+ this.marked = this.gutterMarker = this.className = this.bgClassName = this.handlers = null;
+ this.stateAfter = this.parent = this.hidden = null;
}
Line.inheritMarks = function(text, orig) {
- var ln = new Line(text), mk = orig.marked;
+ var ln = new Line(text), mk = orig && orig.marked;
if (mk) {
for (var i = 0; i < mk.length; ++i) {
- if (mk[i].to == null) {
+ if (mk[i].to == null && mk[i].style) {
var newmk = ln.marked || (ln.marked = []), mark = mk[i];
- newmk.push({from: null, to: null, style: mark.style, set: mark.set});
- mark.set.push(ln);
+ var nmark = mark.dup(); newmk.push(nmark); nmark.attach(ln);
}
}
}
@@ -1853,23 +2432,11 @@ var CodeMirror = (function() {
this.text = this.text.slice(0, from) + text + this.text.slice(to);
this.stateAfter = null;
if (mk) {
- var diff = text.length - (to - from), end = this.text.length;
- var changeStart = Math.min(from, from + diff);
+ var diff = text.length - (to - from);
for (var i = 0; i < mk.length; ++i) {
- var mark = mk[i], del = false;
- if (mark.from != null && mark.from >= end) del = true;
- else {
- if (mark.from != null && mark.from >= from) {
- mark.from += diff;
- if (mark.from <= 0) mark.from = from == null ? null : 0;
- }
- else if (to_ == null) mark.to = null;
- if (mark.to != null && mark.to > from) {
- mark.to += diff;
- if (mark.to < 0) del = true;
- }
- }
- if (del || (mark.from != null && mark.to != null && mark.from >= mark.to)) mk.splice(i--, 1);
+ var mark = mk[i];
+ mark.clipTo(from == null, from || 0, to_ == null, to, diff);
+ if (mark.isDead()) {mark.detach(this); mk.splice(i--, 1);}
}
}
},
@@ -1881,57 +2448,77 @@ var CodeMirror = (function() {
if (mk) {
for (var i = 0; i < mk.length; ++i) {
var mark = mk[i];
- if (mark.to > pos || mark.to == null) {
+ var newmark = mark.split(pos, textBefore.length);
+ if (newmark) {
if (!taken.marked) taken.marked = [];
- taken.marked.push({
- from: mark.from < pos || mark.from == null ? null : mark.from - pos + textBefore.length,
- to: mark.to == null ? null : mark.to - pos + textBefore.length,
- style: mark.style, set: mark.set
- });
- mark.set.push(taken);
+ taken.marked.push(newmark); newmark.attach(taken);
+ if (newmark == mark) mk.splice(i--, 1);
}
}
}
return taken;
},
append: function(line) {
- if (!line.text.length) return;
- var mylen = this.text.length, mk = line.marked;
+ var mylen = this.text.length, mk = line.marked, mymk = this.marked;
this.text += line.text;
copyStyles(0, line.text.length, line.styles, this.styles);
- if (mk && mk.length) {
- var mymk = this.marked || (this.marked = []);
+ if (mymk) {
for (var i = 0; i < mymk.length; ++i)
if (mymk[i].to == null) mymk[i].to = mylen;
+ }
+ if (mk && mk.length) {
+ if (!mymk) this.marked = mymk = [];
outer: for (var i = 0; i < mk.length; ++i) {
var mark = mk[i];
if (!mark.from) {
for (var j = 0; j < mymk.length; ++j) {
var mymark = mymk[j];
- if (mymark.to == mylen && mymark.set == mark.set) {
+ if (mymark.to == mylen && mymark.sameSet(mark)) {
mymark.to = mark.to == null ? null : mark.to + mylen;
+ if (mymark.isDead()) {
+ mymark.detach(this);
+ mk.splice(i--, 1);
+ }
continue outer;
}
}
}
mymk.push(mark);
- mark.set.push(this);
+ mark.attach(this);
mark.from += mylen;
if (mark.to != null) mark.to += mylen;
}
}
},
- addMark: function(from, to, style, set) {
- set.push(this);
+ fixMarkEnds: function(other) {
+ var mk = this.marked, omk = other.marked;
+ if (!mk) return;
+ for (var i = 0; i < mk.length; ++i) {
+ var mark = mk[i], close = mark.to == null;
+ if (close && omk) {
+ for (var j = 0; j < omk.length; ++j)
+ if (omk[j].sameSet(mark)) {close = false; break;}
+ }
+ if (close) mark.to = this.text.length;
+ }
+ },
+ fixMarkStarts: function() {
+ var mk = this.marked;
+ if (!mk) return;
+ for (var i = 0; i < mk.length; ++i)
+ if (mk[i].from == null) mk[i].from = 0;
+ },
+ addMark: function(mark) {
+ mark.attach(this);
if (this.marked == null) this.marked = [];
- this.marked.push({from: from, to: to, style: style, set: set});
+ this.marked.push(mark);
this.marked.sort(function(a, b){return (a.from || 0) - (b.from || 0);});
},
// Run the given mode's parser over a line, update the styles
// array, which contains alternating fragments of text and CSS
// classes.
- highlight: function(mode, state) {
- var stream = new StringStream(this.text), st = this.styles, pos = 0;
+ highlight: function(mode, state, tabSize) {
+ var stream = new StringStream(this.text, tabSize), st = this.styles, pos = 0;
var changed = false, curWord = st[0], prevWord;
if (this.text == "" && mode.blankLine) mode.blankLine(state);
while (!stream.eol()) {
@@ -1972,74 +2559,125 @@ var CodeMirror = (function() {
className: style || null,
state: state};
},
- indentation: function() {return countColumn(this.text);},
+ indentation: function(tabSize) {return countColumn(this.text, null, tabSize);},
// Produces an HTML fragment for the line, taking selection,
// marking, and highlighting into account.
- getHTML: function(sfrom, sto, includePre, endAt) {
- var html = [];
- if (includePre)
- html.push(this.className ? '': "");
- function span(text, style) {
+ getHTML: function(makeTab, wrapAt, wrapId, wrapWBR) {
+ var html = [], first = true, col = 0;
+ function span_(text, style) {
if (!text) return;
- if (style) html.push('', htmlEscape(text), "");
- else html.push(htmlEscape(text));
+ // Work around a bug where, in some compat modes, IE ignores leading spaces
+ if (first && ie && text.charAt(0) == " ") text = "\u00a0" + text.slice(1);
+ first = false;
+ if (text.indexOf("\t") == -1) {
+ col += text.length;
+ var escaped = htmlEscape(text);
+ } else {
+ var escaped = "";
+ for (var pos = 0;;) {
+ var idx = text.indexOf("\t", pos);
+ if (idx == -1) {
+ escaped += htmlEscape(text.slice(pos));
+ col += text.length - pos;
+ break;
+ } else {
+ col += idx - pos;
+ var tab = makeTab(col);
+ escaped += htmlEscape(text.slice(pos, idx)) + tab.html;
+ col += tab.width;
+ pos = idx + 1;
+ }
+ }
+ }
+ if (style) html.push('', escaped, "");
+ else html.push(escaped);
}
+ var span = span_;
+ if (wrapAt != null) {
+ var outPos = 0, open = "";
+ span = function(text, style) {
+ var l = text.length;
+ if (wrapAt >= outPos && wrapAt < outPos + l) {
+ if (wrapAt > outPos) {
+ span_(text.slice(0, wrapAt - outPos), style);
+ // See comment at the definition of spanAffectsWrapping
+ if (wrapWBR) html.push("");
+ }
+ html.push(open);
+ var cut = wrapAt - outPos;
+ span_(opera ? text.slice(cut, cut + 1) : text.slice(cut), style);
+ html.push("");
+ if (opera) span_(text.slice(cut + 1), style);
+ wrapAt--;
+ outPos += l;
+ } else {
+ outPos += l;
+ span_(text, style);
+ // Output empty wrapper when at end of line
+ if (outPos == wrapAt && outPos == len) html.push(open + " ");
+ // Stop outputting HTML when gone sufficiently far beyond measure
+ else if (outPos > wrapAt + 10 && /\s/.test(text)) span = function(){};
+ }
+ }
+ }
+
var st = this.styles, allText = this.text, marked = this.marked;
- if (sfrom == sto) sfrom = null;
var len = allText.length;
- if (endAt != null) len = Math.min(endAt, len);
+ function styleToClass(style) {
+ if (!style) return null;
+ return "cm-" + style.replace(/ +/g, " cm-");
+ }
- if (!allText && endAt == null)
- span(" ", sfrom != null && sto == null ? "CodeMirror-selected" : null);
- else if (!marked && sfrom == null)
+ if (!allText && wrapAt == null) {
+ span(" ");
+ } else if (!marked || !marked.length) {
for (var i = 0, ch = 0; ch < len; i+=2) {
var str = st[i], style = st[i+1], l = str.length;
if (ch + l > len) str = str.slice(0, len - ch);
ch += l;
- span(str, style && "cm-" + style);
+ span(str, styleToClass(style));
}
- else {
+ } else {
var pos = 0, i = 0, text = "", style, sg = 0;
- var markpos = -1, mark = null;
- function nextMark() {
- if (marked) {
- markpos += 1;
- mark = (markpos < marked.length) ? marked[markpos] : null;
+ var nextChange = marked[0].from || 0, marks = [], markpos = 0;
+ function advanceMarks() {
+ var m;
+ while (markpos < marked.length &&
+ ((m = marked[markpos]).from == pos || m.from == null)) {
+ if (m.style != null) marks.push(m);
+ ++markpos;
+ }
+ nextChange = markpos < marked.length ? marked[markpos].from : Infinity;
+ for (var i = 0; i < marks.length; ++i) {
+ var to = marks[i].to || Infinity;
+ if (to == pos) marks.splice(i--, 1);
+ else nextChange = Math.min(to, nextChange);
}
}
- nextMark();
+ var m = 0;
while (pos < len) {
- var upto = len;
- var extraStyle = "";
- if (sfrom != null) {
- if (sfrom > pos) upto = sfrom;
- else if (sto == null || sto > pos) {
- extraStyle = " CodeMirror-selected";
- if (sto != null) upto = Math.min(upto, sto);
+ if (nextChange == pos) advanceMarks();
+ var upto = Math.min(len, nextChange);
+ while (true) {
+ if (text) {
+ var end = pos + text.length;
+ var appliedStyle = style;
+ for (var j = 0; j < marks.length; ++j)
+ appliedStyle = (appliedStyle ? appliedStyle + " " : "") + marks[j].style;
+ span(end > upto ? text.slice(0, upto - pos) : text, appliedStyle);
+ if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
+ pos = end;
}
- }
- while (mark && mark.to != null && mark.to <= pos) nextMark();
- if (mark) {
- if (mark.from > pos) upto = Math.min(upto, mark.from);
- else {
- extraStyle += " " + mark.style;
- if (mark.to != null) upto = Math.min(upto, mark.to);
- }
- }
- for (;;) {
- var end = pos + text.length;
- var appliedStyle = style;
- if (extraStyle) appliedStyle = style ? style + extraStyle : extraStyle;
- span(end > upto ? text.slice(0, upto - pos) : text, appliedStyle);
- if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
- pos = end;
- text = st[i++]; style = "cm-" + st[i++];
+ text = st[i++]; style = styleToClass(st[i++]);
}
}
- if (sfrom != null && sto == null) span(" ", "CodeMirror-selected");
}
- if (includePre) html.push("");
return html.join("");
+ },
+ cleanUp: function() {
+ this.parent = null;
+ if (this.marked)
+ for (var i = 0, e = this.marked.length; i < e; ++i) this.marked[i].detach(this);
}
};
// Utility used by replace and split above
@@ -2049,8 +2687,7 @@ var CodeMirror = (function() {
if (state == 0) {
if (end > from) dest.push(part.slice(from - pos, Math.min(part.length, to - pos)), source[i+1]);
if (end >= from) state = 1;
- }
- else if (state == 1) {
+ } else if (state == 1) {
if (end > to) dest.push(part.slice(0, to - pos), source[i+1]);
else dest.push(part, source[i+1]);
}
@@ -2058,36 +2695,229 @@ var CodeMirror = (function() {
}
}
+ // Data structure that holds the sequence of lines.
+ function LeafChunk(lines) {
+ this.lines = lines;
+ this.parent = null;
+ for (var i = 0, e = lines.length, height = 0; i < e; ++i) {
+ lines[i].parent = this;
+ height += lines[i].height;
+ }
+ this.height = height;
+ }
+ LeafChunk.prototype = {
+ chunkSize: function() { return this.lines.length; },
+ remove: function(at, n, callbacks) {
+ for (var i = at, e = at + n; i < e; ++i) {
+ var line = this.lines[i];
+ this.height -= line.height;
+ line.cleanUp();
+ if (line.handlers)
+ for (var j = 0; j < line.handlers.length; ++j) callbacks.push(line.handlers[j]);
+ }
+ this.lines.splice(at, n);
+ },
+ collapse: function(lines) {
+ lines.splice.apply(lines, [lines.length, 0].concat(this.lines));
+ },
+ insertHeight: function(at, lines, height) {
+ this.height += height;
+ this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
+ for (var i = 0, e = lines.length; i < e; ++i) lines[i].parent = this;
+ },
+ iterN: function(at, n, op) {
+ for (var e = at + n; at < e; ++at)
+ if (op(this.lines[at])) return true;
+ }
+ };
+ function BranchChunk(children) {
+ this.children = children;
+ var size = 0, height = 0;
+ for (var i = 0, e = children.length; i < e; ++i) {
+ var ch = children[i];
+ size += ch.chunkSize(); height += ch.height;
+ ch.parent = this;
+ }
+ this.size = size;
+ this.height = height;
+ this.parent = null;
+ }
+ BranchChunk.prototype = {
+ chunkSize: function() { return this.size; },
+ remove: function(at, n, callbacks) {
+ this.size -= n;
+ for (var i = 0; i < this.children.length; ++i) {
+ var child = this.children[i], sz = child.chunkSize();
+ if (at < sz) {
+ var rm = Math.min(n, sz - at), oldHeight = child.height;
+ child.remove(at, rm, callbacks);
+ this.height -= oldHeight - child.height;
+ if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
+ if ((n -= rm) == 0) break;
+ at = 0;
+ } else at -= sz;
+ }
+ if (this.size - n < 25) {
+ var lines = [];
+ this.collapse(lines);
+ this.children = [new LeafChunk(lines)];
+ this.children[0].parent = this;
+ }
+ },
+ collapse: function(lines) {
+ for (var i = 0, e = this.children.length; i < e; ++i) this.children[i].collapse(lines);
+ },
+ insert: function(at, lines) {
+ var height = 0;
+ for (var i = 0, e = lines.length; i < e; ++i) height += lines[i].height;
+ this.insertHeight(at, lines, height);
+ },
+ insertHeight: function(at, lines, height) {
+ this.size += lines.length;
+ this.height += height;
+ for (var i = 0, e = this.children.length; i < e; ++i) {
+ var child = this.children[i], sz = child.chunkSize();
+ if (at <= sz) {
+ child.insertHeight(at, lines, height);
+ if (child.lines && child.lines.length > 50) {
+ while (child.lines.length > 50) {
+ var spilled = child.lines.splice(child.lines.length - 25, 25);
+ var newleaf = new LeafChunk(spilled);
+ child.height -= newleaf.height;
+ this.children.splice(i + 1, 0, newleaf);
+ newleaf.parent = this;
+ }
+ this.maybeSpill();
+ }
+ break;
+ }
+ at -= sz;
+ }
+ },
+ maybeSpill: function() {
+ if (this.children.length <= 10) return;
+ var me = this;
+ do {
+ var spilled = me.children.splice(me.children.length - 5, 5);
+ var sibling = new BranchChunk(spilled);
+ if (!me.parent) { // Become the parent node
+ var copy = new BranchChunk(me.children);
+ copy.parent = me;
+ me.children = [copy, sibling];
+ me = copy;
+ } else {
+ me.size -= sibling.size;
+ me.height -= sibling.height;
+ var myIndex = indexOf(me.parent.children, me);
+ me.parent.children.splice(myIndex + 1, 0, sibling);
+ }
+ sibling.parent = me.parent;
+ } while (me.children.length > 10);
+ me.parent.maybeSpill();
+ },
+ iter: function(from, to, op) { this.iterN(from, to - from, op); },
+ iterN: function(at, n, op) {
+ for (var i = 0, e = this.children.length; i < e; ++i) {
+ var child = this.children[i], sz = child.chunkSize();
+ if (at < sz) {
+ var used = Math.min(n, sz - at);
+ if (child.iterN(at, used, op)) return true;
+ if ((n -= used) == 0) break;
+ at = 0;
+ } else at -= sz;
+ }
+ }
+ };
+
+ function getLineAt(chunk, n) {
+ while (!chunk.lines) {
+ for (var i = 0;; ++i) {
+ var child = chunk.children[i], sz = child.chunkSize();
+ if (n < sz) { chunk = child; break; }
+ n -= sz;
+ }
+ }
+ return chunk.lines[n];
+ }
+ function lineNo(line) {
+ if (line.parent == null) return null;
+ var cur = line.parent, no = indexOf(cur.lines, line);
+ for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
+ for (var i = 0, e = chunk.children.length; ; ++i) {
+ if (chunk.children[i] == cur) break;
+ no += chunk.children[i].chunkSize();
+ }
+ }
+ return no;
+ }
+ function lineAtHeight(chunk, h) {
+ var n = 0;
+ outer: do {
+ for (var i = 0, e = chunk.children.length; i < e; ++i) {
+ var child = chunk.children[i], ch = child.height;
+ if (h < ch) { chunk = child; continue outer; }
+ h -= ch;
+ n += child.chunkSize();
+ }
+ return n;
+ } while (!chunk.lines);
+ for (var i = 0, e = chunk.lines.length; i < e; ++i) {
+ var line = chunk.lines[i], lh = line.height;
+ if (h < lh) break;
+ h -= lh;
+ }
+ return n + i;
+ }
+ function heightAtLine(chunk, n) {
+ var h = 0;
+ outer: do {
+ for (var i = 0, e = chunk.children.length; i < e; ++i) {
+ var child = chunk.children[i], sz = child.chunkSize();
+ if (n < sz) { chunk = child; continue outer; }
+ n -= sz;
+ h += child.height;
+ }
+ return h;
+ } while (!chunk.lines);
+ for (var i = 0; i < n; ++i) h += chunk.lines[i].height;
+ return h;
+ }
+
// The history object 'chunks' changes that are made close together
// and at almost the same time into bigger undoable units.
function History() {
this.time = 0;
this.done = []; this.undone = [];
+ this.compound = 0;
+ this.closed = false;
}
History.prototype = {
addChange: function(start, added, old) {
this.undone.length = 0;
- var time = +new Date, last = this.done[this.done.length - 1];
- if (time - this.time > 400 || !last ||
- last.start > start + added || last.start + last.added < start - last.added + last.old.length)
- this.done.push({start: start, added: added, old: old});
- else {
- var oldoff = 0;
- if (start < last.start) {
- for (var i = last.start - start - 1; i >= 0; --i)
- last.old.unshift(old[i]);
- last.added += last.start - start;
- last.start = start;
- }
- else if (last.start < start) {
- oldoff = start - last.start;
- added += oldoff;
- }
- for (var i = last.added - oldoff, e = old.length; i < e; ++i)
- last.old.push(old[i]);
- if (last.added < added) last.added = added;
+ var time = +new Date, cur = this.done[this.done.length - 1], last = cur && cur[cur.length - 1];
+ var dtime = time - this.time;
+
+ if (this.compound && cur && !this.closed) {
+ cur.push({start: start, added: added, old: old});
+ } else if (dtime > 400 || !last || this.closed ||
+ last.start > start + old.length || last.start + last.added < start) {
+ this.done.push([{start: start, added: added, old: old}]);
+ this.closed = false;
+ } else {
+ var startBefore = Math.max(0, last.start - start),
+ endAfter = Math.max(0, (start + old.length) - (last.start + last.added));
+ for (var i = startBefore; i > 0; --i) last.old.unshift(old[i - 1]);
+ for (var i = endAfter; i > 0; --i) last.old.push(old[old.length - i]);
+ if (startBefore) last.start = start;
+ last.added += added - (old.length - startBefore - endAfter);
}
this.time = time;
+ },
+ startCompound: function() {
+ if (!this.compound++) this.closed = true;
+ },
+ endCompound: function() {
+ if (!--this.compound) this.closed = true;
}
};
@@ -2107,6 +2937,10 @@ var CodeMirror = (function() {
else e.cancelBubble = true;
}
function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}
+ CodeMirror.e_stop = e_stop;
+ CodeMirror.e_preventDefault = e_preventDefault;
+ CodeMirror.e_stopPropagation = e_stopPropagation;
+
function e_target(e) {return e.target || e.srcElement;}
function e_button(e) {
if (e.which) return e.which;
@@ -2115,60 +2949,76 @@ var CodeMirror = (function() {
else if (e.button & 4) return 2;
}
+ // Allow 3rd-party code to override event properties by adding an override
+ // object to an event object.
+ function e_prop(e, prop) {
+ var overridden = e.override && e.override.hasOwnProperty(prop);
+ return overridden ? e.override[prop] : e[prop];
+ }
+
// Event handler registration. If disconnect is true, it'll return a
// function that unregisters the handler.
function connect(node, type, handler, disconnect) {
- function wrapHandler(event) {handler(event || window.event);}
if (typeof node.addEventListener == "function") {
- node.addEventListener(type, wrapHandler, false);
- if (disconnect) return function() {node.removeEventListener(type, wrapHandler, false);};
- }
- else {
+ node.addEventListener(type, handler, false);
+ if (disconnect) return function() {node.removeEventListener(type, handler, false);};
+ } else {
+ var wrapHandler = function(event) {handler(event || window.event);};
node.attachEvent("on" + type, wrapHandler);
if (disconnect) return function() {node.detachEvent("on" + type, wrapHandler);};
}
}
+ CodeMirror.connect = connect;
function Delayed() {this.id = null;}
Delayed.prototype = {set: function(ms, f) {clearTimeout(this.id); this.id = setTimeout(f, ms);}};
- // Some IE versions don't preserve whitespace when setting the
- // innerHTML of a PRE tag.
- var badInnerHTML = (function() {
- var pre = document.createElement("pre");
- pre.innerHTML = " "; return !pre.innerHTML;
- })();
-
- // Detect drag-and-drop
- var dragAndDrop = (function() {
- // IE8 has ondragstart and ondrop properties, but doesn't seem to
- // actually support ondragstart the way it's supposed to work.
- if (/MSIE [1-8]\b/.test(navigator.userAgent)) return false;
- var div = document.createElement('div');
- return "ondragstart" in div && "ondrop" in div;
- })();
+ var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}};
var gecko = /gecko\/\d{7}/i.test(navigator.userAgent);
var ie = /MSIE \d/.test(navigator.userAgent);
+ var ie_lt8 = /MSIE [1-7]\b/.test(navigator.userAgent);
+ var ie_lt9 = /MSIE [1-8]\b/.test(navigator.userAgent);
+ var quirksMode = ie && document.documentMode == 5;
+ var webkit = /WebKit\//.test(navigator.userAgent);
+ var chrome = /Chrome\//.test(navigator.userAgent);
+ var opera = /Opera\//.test(navigator.userAgent);
var safari = /Apple Computer/.test(navigator.vendor);
+ var khtml = /KHTML\//.test(navigator.userAgent);
+ var mac_geLion = /Mac OS X 10\D([7-9]|\d\d)\D/.test(navigator.userAgent);
- var lineSep = "\n";
+ // Detect drag-and-drop
+ var dragAndDrop = function() {
+ // There is *some* kind of drag-and-drop support in IE6-8, but I
+ // couldn't get it to work yet.
+ if (ie_lt9) return false;
+ var div = document.createElement('div');
+ return "draggable" in div || "dragDrop" in div;
+ }();
+
// Feature-detect whether newlines in textareas are converted to \r\n
- (function () {
+ var lineSep = function () {
var te = document.createElement("textarea");
te.value = "foo\nbar";
- if (te.value.indexOf("\r") > -1) lineSep = "\r\n";
- }());
+ if (te.value.indexOf("\r") > -1) return "\r\n";
+ return "\n";
+ }();
- var tabSize = 8;
- var mac = /Mac/.test(navigator.platform);
- var movementKeys = {};
- for (var i = 35; i <= 40; ++i)
- movementKeys[i] = movementKeys["c" + i] = true;
+ // For a reason I have yet to figure out, some browsers disallow
+ // word wrapping between certain characters *only* if a new inline
+ // element is started between them. This makes it hard to reliably
+ // measure the position of things, since that requires inserting an
+ // extra span. This terribly fragile set of regexps matches the
+ // character combinations that suffer from this phenomenon on the
+ // various browsers.
+ var spanAffectsWrapping = /^$/; // Won't match any two-character string
+ if (gecko) spanAffectsWrapping = /$'/;
+ else if (safari) spanAffectsWrapping = /\-[^ \-?]|\?[^ !'\"\),.\-\/:;\?\]\}]/;
+ else if (chrome) spanAffectsWrapping = /\-[^ \-\.?]|\?[^ \-\.?\]\}:;!'\"\),\/]|[\.!\"#&%\)*+,:;=>\]|\}~][\(\{\[<]|\$'/;
// Counts the column offset in a string, taking tabs into account.
// Used mostly to find indentation.
- function countColumn(string, end) {
+ function countColumn(string, end, tabSize) {
if (end == null) {
end = string.search(/[^\s\u00a0]/);
if (end == -1) end = string.length;
@@ -2184,25 +3034,54 @@ var CodeMirror = (function() {
if (elt.currentStyle) return elt.currentStyle;
return window.getComputedStyle(elt, null);
}
+
// Find the position of an element by following the offsetParent chain.
// If screen==true, it returns screen (rather than page) coordinates.
function eltOffset(node, screen) {
- var doc = node.ownerDocument.body;
- var x = 0, y = 0, skipDoc = false;
+ var bod = node.ownerDocument.body;
+ var x = 0, y = 0, skipBody = false;
for (var n = node; n; n = n.offsetParent) {
- x += n.offsetLeft; y += n.offsetTop;
+ var ol = n.offsetLeft, ot = n.offsetTop;
+ // Firefox reports weird inverted offsets when the body has a border.
+ if (n == bod) { x += Math.abs(ol); y += Math.abs(ot); }
+ else { x += ol, y += ot; }
if (screen && computedStyle(n).position == "fixed")
- skipDoc = true;
+ skipBody = true;
}
- var e = screen && !skipDoc ? null : doc;
+ var e = screen && !skipBody ? null : bod;
for (var n = node.parentNode; n != e; n = n.parentNode)
if (n.scrollLeft != null) { x -= n.scrollLeft; y -= n.scrollTop;}
return {left: x, top: y};
}
+ // Use the faster and saner getBoundingClientRect method when possible.
+ if (document.documentElement.getBoundingClientRect != null) eltOffset = function(node, screen) {
+ // Take the parts of bounding client rect that we are interested in so we are able to edit if need be,
+ // since the returned value cannot be changed externally (they are kept in sync as the element moves within the page)
+ try { var box = node.getBoundingClientRect(); box = { top: box.top, left: box.left }; }
+ catch(e) { box = {top: 0, left: 0}; }
+ if (!screen) {
+ // Get the toplevel scroll, working around browser differences.
+ if (window.pageYOffset == null) {
+ var t = document.documentElement || document.body.parentNode;
+ if (t.scrollTop == null) t = document.body;
+ box.top += t.scrollTop; box.left += t.scrollLeft;
+ } else {
+ box.top += window.pageYOffset; box.left += window.pageXOffset;
+ }
+ }
+ return box;
+ };
+
// Get a node's text content.
function eltText(node) {
return node.textContent || node.innerText || node.nodeValue || "";
}
+ function selectInput(node) {
+ if (ios) { // Mobile Safari apparently has a bug where select() is broken.
+ node.selectionStart = 0;
+ node.selectionEnd = node.value.length;
+ } else node.select();
+ }
// Operations on {line, ch} objects.
function posEq(a, b) {return a.line == b.line && a.ch == b.ch;}
@@ -2211,21 +3090,30 @@ var CodeMirror = (function() {
var escapeElement = document.createElement("pre");
function htmlEscape(str) {
- if (badTextContent) {
+ escapeElement.textContent = str;
+ return escapeElement.innerHTML;
+ }
+ // Recent (late 2011) Opera betas insert bogus newlines at the start
+ // of the textContent, so we strip those.
+ if (htmlEscape("a") == "\na") {
+ htmlEscape = function(str) {
+ escapeElement.textContent = str;
+ return escapeElement.innerHTML.slice(1);
+ };
+ // Some IEs don't preserve tabs through innerHTML
+ } else if (htmlEscape("\t") != "\t") {
+ htmlEscape = function(str) {
escapeElement.innerHTML = "";
escapeElement.appendChild(document.createTextNode(str));
- } else {
- escapeElement.textContent = str;
- }
- return escapeElement.innerHTML;
+ return escapeElement.innerHTML;
+ };
}
- var badTextContent = htmlEscape("\t") != "\t";
CodeMirror.htmlEscape = htmlEscape;
// Used to position the cursor after an undo/redo by finding the
// last edited character.
function editEnd(from, to) {
- if (!to) return from ? from.length : 0;
+ if (!to) return 0;
if (!from) return to.length;
for (var i = from.length, j = to.length; i >= 0 && j >= 0; --i, --j)
if (from.charAt(i) != to.charAt(j)) break;
@@ -2238,95 +3126,54 @@ var CodeMirror = (function() {
if (collection[i] == elt) return i;
return -1;
}
+ function isWordChar(ch) {
+ return /\w/.test(ch) || ch.toUpperCase() != ch.toLowerCase();
+ }
// See if "".split is the broken IE version, if so, provide an
// alternative way to split lines.
- var splitLines, selRange, setSelRange;
- if ("\n\nb".split(/\n/).length != 3)
- splitLines = function(string) {
- var pos = 0, nl, result = [];
- while ((nl = string.indexOf("\n", pos)) > -1) {
- result.push(string.slice(pos, string.charAt(nl-1) == "\r" ? nl - 1 : nl));
- pos = nl + 1;
- }
- result.push(string.slice(pos));
- return result;
- };
- else
- splitLines = function(string){return string.split(/\r?\n/);};
+ var splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) {
+ var pos = 0, nl, result = [];
+ while ((nl = string.indexOf("\n", pos)) > -1) {
+ result.push(string.slice(pos, string.charAt(nl-1) == "\r" ? nl - 1 : nl));
+ pos = nl + 1;
+ }
+ result.push(string.slice(pos));
+ return result;
+ } : function(string){return string.split(/\r?\n/);};
CodeMirror.splitLines = splitLines;
- // Sane model of finding and setting the selection in a textarea
- if (window.getSelection) {
- selRange = function(te) {
- try {return {start: te.selectionStart, end: te.selectionEnd};}
- catch(e) {return null;}
- };
- if (safari)
- // On Safari, selection set with setSelectionRange are in a sort
- // of limbo wrt their anchor. If you press shift-left in them,
- // the anchor is put at the end, and the selection expanded to
- // the left. If you press shift-right, the anchor ends up at the
- // front. This is not what CodeMirror wants, so it does a
- // spurious modify() call to get out of limbo.
- setSelRange = function(te, start, end) {
- if (start == end)
- te.setSelectionRange(start, end);
- else {
- te.setSelectionRange(start, end - 1);
- window.getSelection().modify("extend", "forward", "character");
- }
- };
- else
- setSelRange = function(te, start, end) {
- try {te.setSelectionRange(start, end);}
- catch(e) {} // Fails on Firefox when textarea isn't part of the document
- };
- }
- // IE model. Don't ask.
- else {
- selRange = function(te) {
- try {var range = te.ownerDocument.selection.createRange();}
- catch(e) {return null;}
- if (!range || range.parentElement() != te) return null;
- var val = te.value, len = val.length, localRange = te.createTextRange();
- localRange.moveToBookmark(range.getBookmark());
- var endRange = te.createTextRange();
- endRange.collapse(false);
-
- if (localRange.compareEndPoints("StartToEnd", endRange) > -1)
- return {start: len, end: len};
-
- var start = -localRange.moveStart("character", -len);
- for (var i = val.indexOf("\r"); i > -1 && i < start; i = val.indexOf("\r", i+1), start++) {}
-
- if (localRange.compareEndPoints("EndToEnd", endRange) > -1)
- return {start: start, end: len};
-
- var end = -localRange.moveEnd("character", -len);
- for (var i = val.indexOf("\r"); i > -1 && i < end; i = val.indexOf("\r", i+1), end++) {}
- return {start: start, end: end};
- };
- setSelRange = function(te, start, end) {
- var range = te.createTextRange();
- range.collapse(true);
- var endrange = range.duplicate();
- var newlines = 0, txt = te.value;
- for (var pos = txt.indexOf("\n"); pos > -1 && pos < start; pos = txt.indexOf("\n", pos + 1))
- ++newlines;
- range.move("character", start - newlines);
- for (; pos > -1 && pos < end; pos = txt.indexOf("\n", pos + 1))
- ++newlines;
- endrange.move("character", end - newlines);
- range.setEndPoint("EndToEnd", endrange);
- range.select();
- };
- }
+ var hasSelection = window.getSelection ? function(te) {
+ try { return te.selectionStart != te.selectionEnd; }
+ catch(e) { return false; }
+ } : function(te) {
+ try {var range = te.ownerDocument.selection.createRange();}
+ catch(e) {}
+ if (!range || range.parentElement() != te) return false;
+ return range.compareEndPoints("StartToEnd", range) != 0;
+ };
CodeMirror.defineMode("null", function() {
return {token: function(stream) {stream.skipToEnd();}};
});
CodeMirror.defineMIME("text/plain", "null");
+ var keyNames = {3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
+ 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
+ 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
+ 46: "Delete", 59: ";", 91: "Mod", 92: "Mod", 93: "Mod", 109: "-", 107: "=", 127: "Delete",
+ 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
+ 221: "]", 222: "'", 63276: "PageUp", 63277: "PageDown", 63275: "End", 63273: "Home",
+ 63234: "Left", 63232: "Up", 63235: "Right", 63233: "Down", 63302: "Insert", 63272: "Delete"};
+ CodeMirror.keyNames = keyNames;
+ (function() {
+ // Number keys
+ for (var i = 0; i < 10; i++) keyNames[i + 48] = String(i);
+ // Alphabetic keys
+ for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);
+ // Function keys
+ for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i;
+ })();
+
return CodeMirror;
})();