|
|
// function completer.
|
|
|
//
|
|
|
// completer should be a class that takes an cell instance
|
|
|
var IPython = (function (IPython) {
|
|
|
// that will prevent us from misspelling
|
|
|
"use strict";
|
|
|
|
|
|
// easier key mapping
|
|
|
var keycodes = IPython.keyboard.keycodes;
|
|
|
|
|
|
function prepend_n_prc(str, n) {
|
|
|
for( var i =0 ; i< n ; i++){
|
|
|
str = '%'+str ;
|
|
|
}
|
|
|
return str;
|
|
|
};
|
|
|
|
|
|
function _existing_completion(item, completion_array){
|
|
|
for( var i=0; i < completion_array.length; i++) {
|
|
|
if (completion_array[i].trim().substr(-item.length) == item) {
|
|
|
return true;
|
|
|
}
|
|
|
}
|
|
|
return false;
|
|
|
};
|
|
|
|
|
|
// what is the common start of all completions
|
|
|
function shared_start(B, drop_prct) {
|
|
|
if (B.length == 1) {
|
|
|
return B[0];
|
|
|
}
|
|
|
var A = [];
|
|
|
var common;
|
|
|
var min_lead_prct = 10;
|
|
|
for (var i = 0; i < B.length; i++) {
|
|
|
var str = B[i].str;
|
|
|
var localmin = 0;
|
|
|
if(drop_prct === true){
|
|
|
while ( str.substr(0, 1) == '%') {
|
|
|
localmin = localmin+1;
|
|
|
str = str.substring(1);
|
|
|
}
|
|
|
}
|
|
|
min_lead_prct = Math.min(min_lead_prct, localmin);
|
|
|
A.push(str);
|
|
|
}
|
|
|
|
|
|
if (A.length > 1) {
|
|
|
var tem1, tem2, s;
|
|
|
A = A.slice(0).sort();
|
|
|
tem1 = A[0];
|
|
|
s = tem1.length;
|
|
|
tem2 = A.pop();
|
|
|
while (s && tem2.indexOf(tem1) == -1) {
|
|
|
tem1 = tem1.substring(0, --s);
|
|
|
}
|
|
|
if (tem1 === "" || tem2.indexOf(tem1) !== 0) {
|
|
|
return {
|
|
|
str:prepend_n_prc('', min_lead_prct),
|
|
|
type: "computed",
|
|
|
from: B[0].from,
|
|
|
to: B[0].to
|
|
|
};
|
|
|
}
|
|
|
return {
|
|
|
str: prepend_n_prc(tem1, min_lead_prct),
|
|
|
type: "computed",
|
|
|
from: B[0].from,
|
|
|
to: B[0].to
|
|
|
};
|
|
|
}
|
|
|
return null;
|
|
|
}
|
|
|
|
|
|
|
|
|
var Completer = function (cell) {
|
|
|
this.cell = cell;
|
|
|
this.editor = cell.code_mirror;
|
|
|
var that = this;
|
|
|
$([IPython.events]).on('status_busy.Kernel', function () {
|
|
|
that.skip_kernel_completion = true;
|
|
|
});
|
|
|
$([IPython.events]).on('status_idle.Kernel', function () {
|
|
|
that.skip_kernel_completion = false;
|
|
|
});
|
|
|
};
|
|
|
|
|
|
Completer.prototype.startCompletion = function () {
|
|
|
// call for a 'first' completion, that will set the editor and do some
|
|
|
// special behavior like autopicking if only one completion available.
|
|
|
if (this.editor.somethingSelected()) return;
|
|
|
this.done = false;
|
|
|
// use to get focus back on opera
|
|
|
this.carry_on_completion(true);
|
|
|
};
|
|
|
|
|
|
|
|
|
// easy access for julia to monkeypatch
|
|
|
//
|
|
|
Completer.reinvoke_re = /[%0-9a-z._/\\:~-]/i;
|
|
|
|
|
|
Completer.prototype.reinvoke= function(pre_cursor, block, cursor){
|
|
|
return Completer.reinvoke_re.test(pre_cursor);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
*
|
|
|
* pass true as parameter if this is the first invocation of the completer
|
|
|
* this will prevent the completer to dissmiss itself if it is not on a
|
|
|
* word boundary like pressing tab after a space, and make it autopick the
|
|
|
* only choice if there is only one which prevent from popping the UI. as
|
|
|
* well as fast-forwarding the typing if all completion have a common
|
|
|
* shared start
|
|
|
**/
|
|
|
Completer.prototype.carry_on_completion = function (first_invocation) {
|
|
|
// Pass true as parameter if you want the completer to autopick when
|
|
|
// only one completion. This function is automatically reinvoked at
|
|
|
// each keystroke with first_invocation = false
|
|
|
var cur = this.editor.getCursor();
|
|
|
var line = this.editor.getLine(cur.line);
|
|
|
var pre_cursor = this.editor.getRange({
|
|
|
line: cur.line,
|
|
|
ch: cur.ch - 1
|
|
|
}, cur);
|
|
|
|
|
|
// we need to check that we are still on a word boundary
|
|
|
// because while typing the completer is still reinvoking itself
|
|
|
// so dismiss if we are on a "bad" caracter
|
|
|
if (!this.reinvoke(pre_cursor) && !first_invocation) {
|
|
|
this.close();
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
this.autopick = false;
|
|
|
if (first_invocation) {
|
|
|
this.autopick = true;
|
|
|
}
|
|
|
|
|
|
// We want a single cursor position.
|
|
|
if (this.editor.somethingSelected()) {
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
// one kernel completion came back, finish_completing will be called with the results
|
|
|
// we fork here and directly call finish completing if kernel is busy
|
|
|
if (this.skip_kernel_completion) {
|
|
|
this.finish_completing({
|
|
|
'matches': [],
|
|
|
matched_text: ""
|
|
|
});
|
|
|
} else {
|
|
|
this.cell.kernel.complete(line, cur.ch, $.proxy(this.finish_completing, this));
|
|
|
}
|
|
|
};
|
|
|
|
|
|
Completer.prototype.finish_completing = function (msg) {
|
|
|
// let's build a function that wrap all that stuff into what is needed
|
|
|
// for the new completer:
|
|
|
var content = msg.content;
|
|
|
var matched_text = content.matched_text;
|
|
|
var matches = content.matches;
|
|
|
|
|
|
var cur = this.editor.getCursor();
|
|
|
var results = CodeMirror.contextHint(this.editor);
|
|
|
var filtered_results = [];
|
|
|
//remove results from context completion
|
|
|
//that are already in kernel completion
|
|
|
for (var i=0; i < results.length; i++) {
|
|
|
if (!_existing_completion(results[i].str, matches)) {
|
|
|
filtered_results.push(results[i]);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// append the introspection result, in order, at at the beginning of
|
|
|
// the table and compute the replacement range from current cursor
|
|
|
// positon and matched_text length.
|
|
|
for (var i = matches.length - 1; i >= 0; --i) {
|
|
|
filtered_results.unshift({
|
|
|
str: matches[i],
|
|
|
type: "introspection",
|
|
|
from: {
|
|
|
line: cur.line,
|
|
|
ch: cur.ch - matched_text.length
|
|
|
},
|
|
|
to: {
|
|
|
line: cur.line,
|
|
|
ch: cur.ch
|
|
|
}
|
|
|
});
|
|
|
}
|
|
|
|
|
|
// one the 2 sources results have been merge, deal with it
|
|
|
this.raw_result = filtered_results;
|
|
|
|
|
|
// if empty result return
|
|
|
if (!this.raw_result || !this.raw_result.length) return;
|
|
|
|
|
|
// When there is only one completion, use it directly.
|
|
|
if (this.autopick && this.raw_result.length == 1) {
|
|
|
this.insert(this.raw_result[0]);
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
if (this.raw_result.length == 1) {
|
|
|
// test if first and only completion totally matches
|
|
|
// what is typed, in this case dismiss
|
|
|
var str = this.raw_result[0].str;
|
|
|
var pre_cursor = this.editor.getRange({
|
|
|
line: cur.line,
|
|
|
ch: cur.ch - str.length
|
|
|
}, cur);
|
|
|
if (pre_cursor == str) {
|
|
|
this.close();
|
|
|
return;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
if (!this.visible) {
|
|
|
this.complete = $('<div/>').addClass('completions');
|
|
|
this.complete.attr('id', 'complete');
|
|
|
|
|
|
// Currently webkit doesn't use the size attr correctly. See:
|
|
|
// https://code.google.com/p/chromium/issues/detail?id=4579
|
|
|
this.sel = $('<select/>')
|
|
|
.attr('tabindex', -1)
|
|
|
.attr('multiple', 'true');
|
|
|
this.complete.append(this.sel);
|
|
|
this.visible = true;
|
|
|
$('body').append(this.complete);
|
|
|
|
|
|
//build the container
|
|
|
var that = this;
|
|
|
this.sel.dblclick(function () {
|
|
|
that.pick();
|
|
|
});
|
|
|
this.sel.focus(function () {
|
|
|
that.editor.focus();
|
|
|
});
|
|
|
this._handle_keydown = function (cm, event) {
|
|
|
that.keydown(event);
|
|
|
};
|
|
|
this.editor.on('keydown', this._handle_keydown);
|
|
|
this._handle_keypress = function (cm, event) {
|
|
|
that.keypress(event);
|
|
|
};
|
|
|
this.editor.on('keypress', this._handle_keypress);
|
|
|
}
|
|
|
this.sel.attr('size', Math.min(10, this.raw_result.length));
|
|
|
|
|
|
// After everything is on the page, compute the postion.
|
|
|
// We put it above the code if it is too close to the bottom of the page.
|
|
|
cur.ch = cur.ch-matched_text.length;
|
|
|
var pos = this.editor.cursorCoords(cur);
|
|
|
var left = pos.left-3;
|
|
|
var top;
|
|
|
var cheight = this.complete.height();
|
|
|
var wheight = $(window).height();
|
|
|
if (pos.bottom+cheight+5 > wheight) {
|
|
|
top = pos.top-cheight-4;
|
|
|
} else {
|
|
|
top = pos.bottom+1;
|
|
|
}
|
|
|
this.complete.css('left', left + 'px');
|
|
|
this.complete.css('top', top + 'px');
|
|
|
|
|
|
// Clear and fill the list.
|
|
|
this.sel.text('');
|
|
|
this.build_gui_list(this.raw_result);
|
|
|
return true;
|
|
|
};
|
|
|
|
|
|
Completer.prototype.insert = function (completion) {
|
|
|
this.editor.replaceRange(completion.str, completion.from, completion.to);
|
|
|
};
|
|
|
|
|
|
Completer.prototype.build_gui_list = function (completions) {
|
|
|
for (var i = 0; i < completions.length; ++i) {
|
|
|
var opt = $('<option/>').text(completions[i].str).addClass(completions[i].type);
|
|
|
this.sel.append(opt);
|
|
|
}
|
|
|
this.sel.children().first().attr('selected', 'true');
|
|
|
this.sel.scrollTop(0);
|
|
|
};
|
|
|
|
|
|
Completer.prototype.close = function () {
|
|
|
this.done = true;
|
|
|
$('#complete').remove();
|
|
|
this.editor.off('keydown', this._handle_keydown);
|
|
|
this.editor.off('keypress', this._handle_keypress);
|
|
|
this.visible = false;
|
|
|
};
|
|
|
|
|
|
Completer.prototype.pick = function () {
|
|
|
this.insert(this.raw_result[this.sel[0].selectedIndex]);
|
|
|
this.close();
|
|
|
};
|
|
|
|
|
|
Completer.prototype.keydown = function (event) {
|
|
|
var code = event.keyCode;
|
|
|
var that = this;
|
|
|
|
|
|
// Enter
|
|
|
if (code == keycodes.enter) {
|
|
|
CodeMirror.e_stop(event);
|
|
|
this.pick();
|
|
|
// Escape or backspace
|
|
|
} else if (code == keycodes.esc || code == keycodes.backspace) {
|
|
|
CodeMirror.e_stop(event);
|
|
|
this.close();
|
|
|
} else if (code == keycodes.tab) {
|
|
|
//all the fastforwarding operation,
|
|
|
//Check that shared start is not null which can append with prefixed completion
|
|
|
// like %pylab , pylab have no shred start, and ff will result in py<tab><tab>
|
|
|
// to erase py
|
|
|
var sh = shared_start(this.raw_result, true);
|
|
|
if (sh) {
|
|
|
this.insert(sh);
|
|
|
}
|
|
|
this.close();
|
|
|
//reinvoke self
|
|
|
setTimeout(function () {
|
|
|
that.carry_on_completion();
|
|
|
}, 50);
|
|
|
} else if (code == keycodes.up || code == keycodes.down) {
|
|
|
// need to do that to be able to move the arrow
|
|
|
// when on the first or last line ofo a code cell
|
|
|
CodeMirror.e_stop(event);
|
|
|
|
|
|
var options = this.sel.find('option');
|
|
|
var index = this.sel[0].selectedIndex;
|
|
|
if (code == keycodes.up) {
|
|
|
index--;
|
|
|
}
|
|
|
if (code == keycodes.down) {
|
|
|
index++;
|
|
|
}
|
|
|
index = Math.min(Math.max(index, 0), options.length-1);
|
|
|
this.sel[0].selectedIndex = index;
|
|
|
} else if (code == keycodes.left || code == keycodes.right) {
|
|
|
this.close();
|
|
|
}
|
|
|
};
|
|
|
|
|
|
Completer.prototype.keypress = function (event) {
|
|
|
// FIXME: This is a band-aid.
|
|
|
// on keypress, trigger insertion of a single character.
|
|
|
// This simulates the old behavior of completion as you type,
|
|
|
// before events were disconnected and CodeMirror stopped
|
|
|
// receiving events while the completer is focused.
|
|
|
|
|
|
var that = this;
|
|
|
var code = event.keyCode;
|
|
|
|
|
|
// don't handle keypress if it's not a character (arrows on FF)
|
|
|
// or ENTER/TAB
|
|
|
if (event.charCode === 0 ||
|
|
|
code == keycodes.tab ||
|
|
|
code == keycodes.enter
|
|
|
) return;
|
|
|
|
|
|
this.close();
|
|
|
this.editor.focus();
|
|
|
setTimeout(function () {
|
|
|
that.carry_on_completion();
|
|
|
}, 50);
|
|
|
};
|
|
|
IPython.Completer = Completer;
|
|
|
|
|
|
return IPython;
|
|
|
}(IPython));
|
|
|
|
