|
|
|
|
|
//============================================================================
|
|
|
// CodeCell
|
|
|
//============================================================================
|
|
|
|
|
|
var IPython = (function (IPython) {
|
|
|
|
|
|
var utils = IPython.utils;
|
|
|
|
|
|
var CodeCell = function (notebook) {
|
|
|
this.code_mirror = null;
|
|
|
this.input_prompt_number = ' ';
|
|
|
this.is_completing = false;
|
|
|
this.completion_cursor = null;
|
|
|
IPython.Cell.apply(this, arguments);
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype = new IPython.Cell();
|
|
|
|
|
|
|
|
|
CodeCell.prototype.create_element = function () {
|
|
|
var cell = $('<div></div>').addClass('cell border-box-sizing code_cell vbox');
|
|
|
var input = $('<div></div>').addClass('input hbox');
|
|
|
input.append($('<div/>').addClass('prompt input_prompt'));
|
|
|
var input_area = $('<div/>').addClass('input_area box-flex1');
|
|
|
this.code_mirror = CodeMirror(input_area.get(0), {
|
|
|
indentUnit : 4,
|
|
|
enterMode : 'flat',
|
|
|
tabMode: 'shift',
|
|
|
onKeyEvent: $.proxy(this.handle_codemirror_keyevent,this)
|
|
|
});
|
|
|
input.append(input_area);
|
|
|
var output = $('<div></div>').addClass('output vbox');
|
|
|
cell.append(input).append(output);
|
|
|
this.element = cell;
|
|
|
this.collapse()
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.handle_codemirror_keyevent = function (editor, event) {
|
|
|
// This method gets called in CodeMirror's onKeyDown/onKeyPress handlers and
|
|
|
// is used to provide custom key handling. Its return value is used to determine
|
|
|
// if CodeMirror should ignore the event: true = ignore, false = don't ignore.
|
|
|
if (event.keyCode === 13 && event.shiftKey) {
|
|
|
// Always ignore shift-enter in CodeMirror as we handle it.
|
|
|
return true;
|
|
|
// } else if (event.keyCode == 32 && (event.ctrlKey || event.metaKey) && !event.altKey) {
|
|
|
} else if (event.keyCode == 9) {
|
|
|
var cur = editor.getCursor();
|
|
|
var pre_cursor = editor.getRange({line:cur.line,ch:0},cur).trim();
|
|
|
if (pre_cursor === "") {
|
|
|
// Don't autocomplete if the part of the line before the cursor is empty.
|
|
|
// In this case, let CodeMirror handle indentation.
|
|
|
return false;
|
|
|
} else {
|
|
|
// Autocomplete the current line.
|
|
|
event.stop();
|
|
|
var line = editor.getLine(cur.line);
|
|
|
this.is_completing = true;
|
|
|
this.completion_cursor = cur;
|
|
|
IPython.notebook.complete_cell(this, line, cur.ch);
|
|
|
return true;
|
|
|
}
|
|
|
} else {
|
|
|
if (this.is_completing && this.completion_cursor !== editor.getCursor()) {
|
|
|
this.is_completing = false;
|
|
|
this.completion_cursor = null;
|
|
|
}
|
|
|
return false;
|
|
|
};
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.finish_completing = function (matched_text, matches) {
|
|
|
if (!this.is_completing || matches.length === 0) {return;}
|
|
|
// console.log("Got matches", matched_text, matches);
|
|
|
|
|
|
var that = this;
|
|
|
var cur = this.completion_cursor;
|
|
|
var complete = $('<div/>').addClass('completions');
|
|
|
var select = $('<select/>').attr('multiple','true');
|
|
|
for (var i=0; i<matches.length; ++i) {
|
|
|
select.append($('<option/>').text(matches[i]));
|
|
|
}
|
|
|
select.children().first().attr('selected','true');
|
|
|
select.attr('size',Math.min(10,matches.length));
|
|
|
var pos = this.code_mirror.cursorCoords();
|
|
|
complete.css('left',pos.x+'px');
|
|
|
complete.css('top',pos.yBot+'px');
|
|
|
complete.append(select);
|
|
|
|
|
|
$('body').append(complete);
|
|
|
var done = false;
|
|
|
|
|
|
var insert = function (selected_text) {
|
|
|
that.code_mirror.replaceRange(
|
|
|
selected_text,
|
|
|
{line: cur.line, ch: (cur.ch-matched_text.length)},
|
|
|
{line: cur.line, ch: cur.ch}
|
|
|
);
|
|
|
};
|
|
|
|
|
|
var close = function () {
|
|
|
if (done) return;
|
|
|
done = true;
|
|
|
complete.remove();
|
|
|
that.is_completing = false;
|
|
|
that.completion_cursor = null;
|
|
|
};
|
|
|
|
|
|
var pick = function () {
|
|
|
insert(select.val()[0]);
|
|
|
close();
|
|
|
setTimeout(function(){that.code_mirror.focus();}, 50);
|
|
|
};
|
|
|
|
|
|
select.blur(close);
|
|
|
select.keydown(function (event) {
|
|
|
var code = event.which;
|
|
|
if (code === 13 || code === 32) {
|
|
|
// Pressing SPACE or ENTER will cause a pick
|
|
|
event.stopPropagation();
|
|
|
event.preventDefault();
|
|
|
pick();
|
|
|
} else if (code === 38 || code === 40) {
|
|
|
// We don't want the document keydown handler to handle UP/DOWN,
|
|
|
// but we want the default action.
|
|
|
event.stopPropagation();
|
|
|
} else {
|
|
|
// All other key presses simple exit completion.
|
|
|
event.stopPropagation();
|
|
|
event.preventDefault();
|
|
|
close();
|
|
|
that.code_mirror.focus();
|
|
|
}
|
|
|
});
|
|
|
// Double click also causes a pick.
|
|
|
select.dblclick(pick);
|
|
|
select.focus();
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.select = function () {
|
|
|
IPython.Cell.prototype.select.apply(this);
|
|
|
this.code_mirror.focus();
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.append_pyout = function (data, n) {
|
|
|
var toinsert = $("<div/>").addClass("output_area output_pyout hbox");
|
|
|
toinsert.append($('<div/>').
|
|
|
addClass('prompt output_prompt').
|
|
|
html('Out[' + n + ']:')
|
|
|
);
|
|
|
this.append_display_data(data, toinsert);
|
|
|
toinsert.children().last().addClass("box_flex1");
|
|
|
this.element.find("div.output").append(toinsert);
|
|
|
// If we just output latex, typeset it.
|
|
|
if (data["text/latex"] !== undefined) {
|
|
|
MathJax.Hub.Queue(["Typeset",MathJax.Hub]);
|
|
|
};
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.append_pyerr = function (ename, evalue, tb) {
|
|
|
var s = '';
|
|
|
var len = tb.length;
|
|
|
for (var i=0; i<len; i++) {
|
|
|
s = s + tb[i] + '\n';
|
|
|
}
|
|
|
s = s + '\n';
|
|
|
this.append_stream(s);
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.append_display_data = function (data, element) {
|
|
|
if (data["text/html"] !== undefined) {
|
|
|
this.append_html(data["text/html"], element);
|
|
|
} else if (data["text/latex"] !== undefined) {
|
|
|
this.append_latex(data["text/latex"], element);
|
|
|
// If it is undefined, then we just appended to div.output, which
|
|
|
// makes the latex visible and we can typeset it. The typesetting
|
|
|
// has to be done after the latex is on the page.
|
|
|
if (element === undefined) {
|
|
|
MathJax.Hub.Queue(["Typeset",MathJax.Hub]);
|
|
|
};
|
|
|
} else if (data["image/svg+xml"] !== undefined) {
|
|
|
this.append_svg(data["image/svg+xml"], element);
|
|
|
} else if (data["image/png"] !== undefined) {
|
|
|
this.append_png(data["image/png"], element);
|
|
|
} else if (data["text/plain"] !== undefined) {
|
|
|
this.append_stream(data["text/plain"], element);
|
|
|
};
|
|
|
return element;
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.append_html = function (html, element) {
|
|
|
element = element || this.element.find("div.output");
|
|
|
var toinsert = $("<div/>").addClass("output_area output_html");
|
|
|
toinsert.append(html);
|
|
|
element.append(toinsert);
|
|
|
return element;
|
|
|
}
|
|
|
|
|
|
|
|
|
CodeCell.prototype.append_stream = function (data, element) {
|
|
|
element = element || this.element.find("div.output");
|
|
|
var toinsert = $("<div/>").addClass("output_area output_stream");
|
|
|
toinsert.append($("<pre/>").html(utils.fixConsole(data)));
|
|
|
element.append(toinsert);
|
|
|
return element;
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.append_svg = function (svg, element) {
|
|
|
element = element || this.element.find("div.output");
|
|
|
var toinsert = $("<div/>").addClass("output_area output_svg");
|
|
|
toinsert.append(svg);
|
|
|
element.append(toinsert);
|
|
|
return element;
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.append_png = function (png, element) {
|
|
|
element = element || this.element.find("div.output");
|
|
|
var toinsert = $("<div/>").addClass("output_area output_png");
|
|
|
toinsert.append($("<img/>").attr('src','data:image/png;base64,'+png));
|
|
|
element.append(toinsert);
|
|
|
return element;
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.append_latex = function (latex, element) {
|
|
|
// This method cannot do the typesetting because the latex first has to
|
|
|
// be on the page.
|
|
|
element = element || this.element.find("div.output");
|
|
|
var toinsert = $("<div/>").addClass("output_area output_latex");
|
|
|
toinsert.append(latex);
|
|
|
element.append(toinsert);
|
|
|
return element;
|
|
|
}
|
|
|
|
|
|
|
|
|
CodeCell.prototype.clear_output = function () {
|
|
|
this.element.find("div.output").html("");
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.clear_input = function () {
|
|
|
this.code_mirror.setValue('');
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.collapse = function () {
|
|
|
this.element.find('div.output').hide();
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.expand = function () {
|
|
|
this.element.find('div.output').show();
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.set_input_prompt = function (number) {
|
|
|
var n = number || ' ';
|
|
|
this.input_prompt_number = n
|
|
|
this.element.find('div.input_prompt').html('In [' + n + ']:');
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.get_code = function () {
|
|
|
return this.code_mirror.getValue();
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.set_code = function (code) {
|
|
|
return this.code_mirror.setValue(code);
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.at_top = function () {
|
|
|
var cursor = this.code_mirror.getCursor();
|
|
|
if (cursor.line === 0) {
|
|
|
return true;
|
|
|
} else {
|
|
|
return false;
|
|
|
}
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.at_bottom = function () {
|
|
|
var cursor = this.code_mirror.getCursor();
|
|
|
if (cursor.line === (this.code_mirror.lineCount()-1)) {
|
|
|
return true;
|
|
|
} else {
|
|
|
return false;
|
|
|
}
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.fromJSON = function (data) {
|
|
|
if (data.cell_type === 'code') {
|
|
|
this.set_code(data.code);
|
|
|
this.set_input_prompt(data.prompt_number);
|
|
|
};
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.toJSON = function () {
|
|
|
return {
|
|
|
code : this.get_code(),
|
|
|
cell_type : 'code',
|
|
|
prompt_number : this.input_prompt_number
|
|
|
};
|
|
|
};
|
|
|
|
|
|
IPython.CodeCell = CodeCell;
|
|
|
|
|
|
return IPython;
|
|
|
}(IPython));
|
|
|
|
|
|
|
