##// END OF EJS Templates
Merge pull request #1361 from ellisonbg/nbissues...
Merge pull request #1361 from ellisonbg/nbissues A number of bug fixes for notebook issues that had crept up recently with all the major improvements done on multiple fronts. In closing #1359, we've changed slightly how Math() works: it now unconditionally surrounds its input with $$...$$, so that it always appears in displayed math mode. We have also introduced a new display object, Latex(), which does *not* add any latex markup, for other constructs beyond simple math expressions. This change makes Math() friendlier to use in simple cases and means that Math(sympy.latex(foo)) will produce the expected displayed math results without the user having to add any $ markup. Summary of fixes: Fixes #1344: Ctrl + M + L does not toggle line numbering in htmlnotebook. Fixes #1337: Tab in the notebook after `(` should not indent, only give a tooltip. Fixes #1339: Notebook printing broken. Fixes #1348: `Ctrl-m-Ctrl-m` does not switch to markdown cell Fixes #1359: [sympyprinting] MathJax can't render \root{m}{n}

File last commit:

r6059:de286793
r6066:54c3e061 merge
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codecell.js
872 lines | 32.3 KiB | application/javascript | JavascriptLexer
//----------------------------------------------------------------------------
// Copyright (C) 2008-2011 The IPython Development Team
//
// Distributed under the terms of the BSD License. The full license is in
// the file COPYING, distributed as part of this software.
//----------------------------------------------------------------------------
//============================================================================
// CodeCell
//============================================================================
var IPython = (function (IPython) {
var utils = IPython.utils;
var CodeCell = function (notebook) {
this.code_mirror = null;
this.input_prompt_number = null;
this.is_completing = false;
this.completion_cursor = null;
this.outputs = [];
this.collapsed = false;
this.tooltip_timeout = 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');
cell.attr('tabindex','2');
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,
mode: 'python',
theme: 'ipython',
readOnly: this.read_only,
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();
};
//TODO, try to diminish the number of parameters.
CodeCell.prototype.request_tooltip_after_time = function (pre_cursor,time){
var that = this;
if (pre_cursor === "" || pre_cursor === "(" ) {
// don't do anything if line beggin with '(' or is empty
} else {
// Will set a timer to request tooltip in `time`
that.tooltip_timeout = setTimeout(function(){
IPython.notebook.request_tool_tip(that, pre_cursor)
},time);
}
};
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 (this.read_only){
return false;
}
// note that we are comparing and setting the time to wait at each key press.
// a better wqy might be to generate a new function on each time change and
// assign it to CodeCell.prototype.request_tooltip_after_time
tooltip_wait_time = this.notebook.time_before_tooltip;
tooltip_on_tab = this.notebook.tooltip_on_tab;
var that = this;
// whatever key is pressed, first, cancel the tooltip request before
// they are sent, and remove tooltip if any
if(event.type === 'keydown' ) {
that.remove_and_cancel_tooltip();
};
if (event.keyCode === 13 && (event.shiftKey || event.ctrlKey)) {
// Always ignore shift-enter in CodeMirror as we handle it.
return true;
} else if (event.which === 40 && event.type === 'keypress' && tooltip_wait_time >= 0) {
// triger aon keypress (!) otherwise inconsistent event.which depending on plateform
// browser and keyboard layout !
// Pressing '(' , request tooltip, don't forget to reappend it
var cursor = editor.getCursor();
var pre_cursor = editor.getRange({line:cursor.line,ch:0},cursor).trim()+'(';
that.request_tooltip_after_time(pre_cursor,tooltip_wait_time);
} else if (event.which === 38) {
// If we are not at the top, let CM handle the up arrow and
// prevent the global keydown handler from handling it.
if (!that.at_top()) {
event.stop();
return false;
} else {
return true;
};
} else if (event.which === 40) {
// If we are not at the bottom, let CM handle the down arrow and
// prevent the global keydown handler from handling it.
if (!that.at_bottom()) {
event.stop();
return false;
} else {
return true;
};
} else if (event.keyCode === 9 && event.type == 'keydown') {
// Tab completion.
var cur = editor.getCursor();
//Do not trim here because of tooltip
var pre_cursor = editor.getRange({line:cur.line,ch:0},cur);
if (pre_cursor.trim() === "") {
// Don't autocomplete if the part of the line before the cursor
// is empty. In this case, let CodeMirror handle indentation.
return false;
} else if ((pre_cursor.substr(-1) === "("|| pre_cursor.substr(-1) === " ") && tooltip_on_tab ) {
that.request_tooltip_after_time(pre_cursor,0);
// Prevent the event from bubbling up.
event.stop();
// Prevent CodeMirror from handling the tab.
return true;
} else {
pre_cursor.trim();
// 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 (event.keyCode === 8 && event.type == 'keydown') {
// If backspace and the line ends with 4 spaces, remove them.
var cur = editor.getCursor();
var line = editor.getLine(cur.line);
var ending = line.slice(-4);
if (ending === ' ') {
editor.replaceRange('',
{line: cur.line, ch: cur.ch-4},
{line: cur.line, ch: cur.ch}
);
event.stop();
return true;
} else {
return false;
};
} else {
// keypress/keyup also trigger on TAB press, and we don't want to
// use those to disable tab completion.
if (this.is_completing && event.keyCode !== 9) {
var ed_cur = editor.getCursor();
var cc_cur = this.completion_cursor;
if (ed_cur.line !== cc_cur.line || ed_cur.ch !== cc_cur.ch) {
this.is_completing = false;
this.completion_cursor = null;
};
};
return false;
};
return false;
};
CodeCell.prototype.remove_and_cancel_tooltip = function() {
// note that we don't handle closing directly inside the calltip
// as in the completer, because it is not focusable, so won't
// get the event.
if (this.tooltip_timeout != null){
clearTimeout(this.tooltip_timeout);
$('#tooltip').remove();
this.tooltip_timeout = null;
}
}
CodeCell.prototype.finish_tooltip = function (reply) {
// Extract call tip data; the priority is call, init, main.
defstring = reply.call_def;
if (defstring == null) { defstring = reply.init_definition; }
if (defstring == null) { defstring = reply.definition; }
docstring = reply.call_docstring;
if (docstring == null) { docstring = reply.init_docstring; }
if (docstring == null) { docstring = reply.docstring; }
if (docstring == null) { docstring = "<empty docstring>"; }
name=reply.name;
var that = this;
var tooltip = $('<div/>').attr('id', 'tooltip').addClass('tooltip');
// remove to have the tooltip not Limited in X and Y
tooltip.addClass('smalltooltip');
var pre=$('<pre/>').html(utils.fixConsole(docstring));
var expandlink=$('<a/>').attr('href',"#");
expandlink.addClass("ui-corner-all"); //rounded corner
expandlink.attr('role',"button");
//expandlink.addClass('ui-button');
//expandlink.addClass('ui-state-default');
var expandspan=$('<span/>').text('Expand');
expandspan.addClass('ui-icon');
expandspan.addClass('ui-icon-plus');
expandlink.append(expandspan);
expandlink.attr('id','expanbutton');
expandlink.click(function(){
tooltip.removeClass('smalltooltip');
tooltip.addClass('bigtooltip');
$('#expanbutton').remove();
setTimeout(function(){that.code_mirror.focus();}, 50);
});
var morelink=$('<a/>').attr('href',"#");
morelink.attr('role',"button");
morelink.addClass('ui-button');
//morelink.addClass("ui-corner-all"); //rounded corner
//morelink.addClass('ui-state-default');
var morespan=$('<span/>').text('Open in Pager');
morespan.addClass('ui-icon');
morespan.addClass('ui-icon-arrowstop-l-n');
morelink.append(morespan);
morelink.click(function(){
var msg_id = IPython.notebook.kernel.execute(name+"?");
IPython.notebook.msg_cell_map[msg_id] = IPython.notebook.get_selected_cell().cell_id;
that.remove_and_cancel_tooltip();
setTimeout(function(){that.code_mirror.focus();}, 50);
});
var closelink=$('<a/>').attr('href',"#");
closelink.attr('role',"button");
closelink.addClass('ui-button');
//closelink.addClass("ui-corner-all"); //rounded corner
//closelink.adClass('ui-state-default'); // grey background and blue cross
var closespan=$('<span/>').text('Close');
closespan.addClass('ui-icon');
closespan.addClass('ui-icon-close');
closelink.append(closespan);
closelink.click(function(){
that.remove_and_cancel_tooltip();
setTimeout(function(){that.code_mirror.focus();}, 50);
});
//construct the tooltip
tooltip.append(closelink);
tooltip.append(expandlink);
tooltip.append(morelink);
if(defstring){
defstring_html = $('<pre/>').html(utils.fixConsole(defstring));
tooltip.append(defstring_html);
}
tooltip.append(pre);
var pos = this.code_mirror.cursorCoords();
tooltip.css('left',pos.x+'px');
tooltip.css('top',pos.yBot+'px');
$('body').append(tooltip);
// issues with cross-closing if multiple tooltip in less than 5sec
// keep it comented for now
// setTimeout(that.remove_and_cancel_tooltip, 5000);
};
// As you type completer
CodeCell.prototype.finish_completing = function (matched_text, matches) {
if(matched_text[0]=='%'){
completing_from_magic = true;
completing_to_magic = false;
} else {
completing_from_magic = false;
completing_to_magic = false;
}
//return if not completing or nothing to complete
if (!this.is_completing || matches.length === 0) {return;}
// for later readability
var key = { tab:9,
esc:27,
backspace:8,
space:32,
shift:16,
enter:13,
// _ is 95
isCompSymbol : function (code)
{
return (code > 64 && code <= 90)
|| (code >= 97 && code <= 122)
|| (code == 95)
},
dismissAndAppend : function (code)
{
chararr = '()[]+-/\\. ,=*'.split("");
codearr = chararr.map(function(x){return x.charCodeAt(0)});
return jQuery.inArray(code, codearr) != -1;
}
}
// smart completion, sort kwarg ending with '='
var newm = new Array();
if(this.notebook.smart_completer)
{
kwargs = new Array();
other = new Array();
for(var i = 0 ; i<matches.length ; ++i){
if(matches[i].substr(-1) === '='){
kwargs.push(matches[i]);
}else{other.push(matches[i]);}
}
newm = kwargs.concat(other);
matches = newm;
}
// end sort kwargs
// give common prefix of a array of string
function sharedStart(A){
shared='';
if(A.length == 1){shared=A[0]}
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);
}
shared = tem1;
}
if (shared[0] == '%' && !completing_from_magic)
{
shared = shared.substr(1);
return [shared, true];
} else {
return [shared, false];
}
}
//try to check if the user is typing tab at least twice after a word
// and completion is "done"
fallback_on_tooltip_after = 2
if(matches.length == 1 && matched_text === matches[0])
{
if(this.npressed >fallback_on_tooltip_after && this.prevmatch==matched_text)
{
this.request_tooltip_after_time(matched_text+'(',0);
return;
}
this.prevmatch = matched_text
this.npressed = this.npressed+1;
}
else
{
this.prevmatch = "";
this.npressed = 0;
}
// end fallback on tooltip
//==================================
// Real completion logic start here
var that = this;
var cur = this.completion_cursor;
var done = false;
// call to dismmiss the completer
var close = function () {
if (done) return;
done = true;
if (complete != undefined)
{complete.remove();}
that.is_completing = false;
that.completion_cursor = null;
};
// update codemirror with the typed text
prev = matched_text
var update = function (inserted_text, event) {
that.code_mirror.replaceRange(
inserted_text,
{line: cur.line, ch: (cur.ch-matched_text.length)},
{line: cur.line, ch: (cur.ch+prev.length-matched_text.length)}
);
prev = inserted_text
if(event != null){
event.stopPropagation();
event.preventDefault();
}
};
// insert the given text and exit the completer
var insert = function (selected_text, event) {
update(selected_text)
close();
setTimeout(function(){that.code_mirror.focus();}, 50);
};
// insert the curent highlited selection and exit
var pick = function () {
insert(select.val()[0],null);
};
// Define function to clear the completer, refill it with the new
// matches, update the pseuso typing field. autopick insert match if
// only one left, in no matches (anymore) dismiss itself by pasting
// what the user have typed until then
var complete_with = function(matches,typed_text,autopick,event)
{
// If autopick an only one match, past.
// Used to 'pick' when pressing tab
var prefix = '';
if(completing_to_magic && !completing_from_magic)
{
prefix='%';
}
if (matches.length < 1) {
insert(prefix+typed_text,event);
if(event != null){
event.stopPropagation();
event.preventDefault();
}
} else if (autopick && matches.length == 1) {
insert(matches[0],event);
if(event != null){
event.stopPropagation();
event.preventDefault();
}
return;
}
//clear the previous completion if any
update(prefix+typed_text,event);
complete.children().children().remove();
$('#asyoutype').html("<b>"+prefix+matched_text+"</b>"+typed_text.substr(matched_text.length));
select = $('#asyoutypeselect');
for (var i = 0; i<matches.length; ++i) {
select.append($('<option/>').html(matches[i]));
}
select.children().first().attr('selected','true');
}
// create html for completer
var complete = $('<div/>').addClass('completions');
complete.attr('id','complete');
complete.append($('<p/>').attr('id', 'asyoutype').html('<b>fixed part</b>user part'));//pseudo input field
var select = $('<select/>').attr('multiple','true');
select.attr('id', 'asyoutypeselect')
select.attr('size',Math.min(10,matches.length));
var pos = this.code_mirror.cursorCoords();
// TODO: I propose to remove enough horizontal pixel
// to align the text later
complete.css('left',pos.x+'px');
complete.css('top',pos.yBot+'px');
complete.append(select);
$('body').append(complete);
// So a first actual completion. see if all the completion start wit
// the same letter and complete if necessary
ff = sharedStart(matches)
fastForward = ff[0];
completing_to_magic = ff[1];
typed_characters = fastForward.substr(matched_text.length);
complete_with(matches,matched_text+typed_characters,true,null);
filterd = matches;
// Give focus to select, and make it filter the match as the user type
// by filtering the previous matches. Called by .keypress and .keydown
var downandpress = function (event,press_or_down) {
var code = event.which;
var autopick = false; // auto 'pick' if only one match
if (press_or_down === 0){
press = true; down = false; //Are we called from keypress or keydown
} else if (press_or_down == 1){
press = false; down = true;
}
if (code === key.shift) {
// nothing on Shift
return;
}
if (key.dismissAndAppend(code) && press) {
var newchar = String.fromCharCode(code);
typed_characters = typed_characters+newchar;
insert(matched_text+typed_characters,event);
return
}
if (code === key.enter) {
// Pressing 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 if ( (code == key.backspace)||(code == key.tab && down) || press || key.isCompSymbol(code)){
if( key.isCompSymbol(code) && press)
{
var newchar = String.fromCharCode(code);
typed_characters = typed_characters+newchar;
} else if (code == key.tab) {
ff = sharedStart(matches)
fastForward = ff[0];
completing_to_magic = ff[1];
ffsub = fastForward.substr(matched_text.length+typed_characters.length);
typed_characters = typed_characters+ffsub;
autopick = true;
} else if (code == key.backspace && down) {
// cancel if user have erase everything, otherwise decrease
// what we filter with
event.preventDefault();
if (typed_characters.length <= 0)
{
insert(matched_text,event)
return
}
typed_characters = typed_characters.substr(0,typed_characters.length-1);
} else if (press && code != key.backspace && code != key.tab && code != 0){
insert(matched_text+typed_characters,event);
return
} else {
return
}
re = new RegExp("^"+"\%?"+matched_text+typed_characters,"");
filterd = matches.filter(function(x){return re.test(x)});
ff = sharedStart(filterd);
completing_to_magic = ff[1];
complete_with(filterd,matched_text+typed_characters,autopick,event);
} else if (code == key.esc) {
// dismiss the completer and go back to before invoking it
insert(matched_text,event);
} else if (press) { // abort only on .keypress or esc
}
}
select.keydown(function (event) {
downandpress(event,1)
});
select.keypress(function (event) {
downandpress(event,0)
});
// Double click also causes a pick.
// and bind the last actions.
select.dblclick(pick);
select.blur(close);
select.focus();
};
CodeCell.prototype.select = function () {
IPython.Cell.prototype.select.apply(this);
this.code_mirror.refresh();
this.code_mirror.focus();
// We used to need an additional refresh() after the focus, but
// it appears that this has been fixed in CM. This bug would show
// up on FF when a newly loaded markdown cell was edited.
};
CodeCell.prototype.select_all = function () {
var start = {line: 0, ch: 0};
var nlines = this.code_mirror.lineCount();
var last_line = this.code_mirror.getLine(nlines-1);
var end = {line: nlines-1, ch: last_line.length};
this.code_mirror.setSelection(start, end);
};
CodeCell.prototype.append_output = function (json) {
this.expand();
if (json.output_type === 'pyout') {
this.append_pyout(json);
} else if (json.output_type === 'pyerr') {
this.append_pyerr(json);
} else if (json.output_type === 'display_data') {
this.append_display_data(json);
} else if (json.output_type === 'stream') {
this.append_stream(json);
};
this.outputs.push(json);
};
CodeCell.prototype.create_output_area = function () {
var oa = $("<div/>").addClass("hbox output_area");
oa.append($('<div/>').addClass('prompt'));
return oa;
};
CodeCell.prototype.append_pyout = function (json) {
n = json.prompt_number || ' ';
var toinsert = this.create_output_area();
toinsert.find('div.prompt').addClass('output_prompt').html('Out[' + n + ']:');
this.append_mime_type(json, toinsert);
this.element.find('div.output').append(toinsert);
// If we just output latex, typeset it.
if ((json.latex !== undefined) || (json.html !== undefined)) {
this.typeset();
};
};
CodeCell.prototype.append_pyerr = function (json) {
var tb = json.traceback;
if (tb !== undefined && tb.length > 0) {
var s = '';
var len = tb.length;
for (var i=0; i<len; i++) {
s = s + tb[i] + '\n';
}
s = s + '\n';
var toinsert = this.create_output_area();
this.append_text(s, toinsert);
this.element.find('div.output').append(toinsert);
};
};
CodeCell.prototype.append_stream = function (json) {
// temporary fix: if stream undefined (json file written prior to this patch),
// default to most likely stdout:
if (json.stream == undefined){
json.stream = 'stdout';
}
var subclass = "output_"+json.stream;
if (this.outputs.length > 0){
// have at least one output to consider
var last = this.outputs[this.outputs.length-1];
if (last.output_type == 'stream' && json.stream == last.stream){
// latest output was in the same stream,
// so append directly into its pre tag
// escape ANSI & HTML specials:
var text = utils.fixConsole(json.text);
this.element.find('div.'+subclass).last().find('pre').append(text);
return;
}
}
// If we got here, attach a new div
var toinsert = this.create_output_area();
this.append_text(json.text, toinsert, "output_stream "+subclass);
this.element.find('div.output').append(toinsert);
};
CodeCell.prototype.append_display_data = function (json) {
var toinsert = this.create_output_area();
this.append_mime_type(json, toinsert);
this.element.find('div.output').append(toinsert);
// If we just output latex, typeset it.
if ( (json.latex !== undefined) || (json.html !== undefined) ) {
this.typeset();
};
};
CodeCell.prototype.append_mime_type = function (json, element) {
if (json.html !== undefined) {
this.append_html(json.html, element);
} else if (json.latex !== undefined) {
this.append_latex(json.latex, element);
} else if (json.svg !== undefined) {
this.append_svg(json.svg, element);
} else if (json.png !== undefined) {
this.append_png(json.png, element);
} else if (json.jpeg !== undefined) {
this.append_jpeg(json.jpeg, element);
} else if (json.text !== undefined) {
this.append_text(json.text, element);
};
};
CodeCell.prototype.append_html = function (html, element) {
var toinsert = $("<div/>").addClass("box_flex1 output_subarea output_html rendered_html");
toinsert.append(html);
element.append(toinsert);
};
CodeCell.prototype.append_text = function (data, element, extra_class) {
var toinsert = $("<div/>").addClass("box_flex1 output_subarea output_text");
// escape ANSI & HTML specials in plaintext:
data = utils.fixConsole(data);
if (extra_class){
toinsert.addClass(extra_class);
}
toinsert.append($("<pre/>").html(data));
element.append(toinsert);
};
CodeCell.prototype.append_svg = function (svg, element) {
var toinsert = $("<div/>").addClass("box_flex1 output_subarea output_svg");
toinsert.append(svg);
element.append(toinsert);
};
CodeCell.prototype.append_png = function (png, element) {
var toinsert = $("<div/>").addClass("box_flex1 output_subarea output_png");
toinsert.append($("<img/>").attr('src','data:image/png;base64,'+png));
element.append(toinsert);
};
CodeCell.prototype.append_jpeg = function (jpeg, element) {
var toinsert = $("<div/>").addClass("box_flex1 output_subarea output_jpeg");
toinsert.append($("<img/>").attr('src','data:image/jpeg;base64,'+jpeg));
element.append(toinsert);
};
CodeCell.prototype.append_latex = function (latex, element) {
// This method cannot do the typesetting because the latex first has to
// be on the page.
var toinsert = $("<div/>").addClass("box_flex1 output_subarea output_latex");
toinsert.append(latex);
element.append(toinsert);
};
CodeCell.prototype.clear_output = function (stdout, stderr, other) {
var output_div = this.element.find("div.output");
if (stdout && stderr && other){
// clear all, no need for logic
output_div.html("");
this.outputs = [];
return;
}
// remove html output
// each output_subarea that has an identifying class is in an output_area
// which is the element to be removed.
if (stdout){
output_div.find("div.output_stdout").parent().remove();
}
if (stderr){
output_div.find("div.output_stderr").parent().remove();
}
if (other){
output_div.find("div.output_subarea").not("div.output_stderr").not("div.output_stdout").parent().remove();
}
// remove cleared outputs from JSON list:
for (var i = this.outputs.length - 1; i >= 0; i--){
var out = this.outputs[i];
var output_type = out.output_type;
if (output_type == "display_data" && other){
this.outputs.splice(i,1);
}else if (output_type == "stream"){
if (stdout && out.stream == "stdout"){
this.outputs.splice(i,1);
}else if (stderr && out.stream == "stderr"){
this.outputs.splice(i,1);
}
}
}
};
CodeCell.prototype.clear_input = function () {
this.code_mirror.setValue('');
};
CodeCell.prototype.collapse = function () {
if (!this.collapsed) {
this.element.find('div.output').hide();
this.collapsed = true;
};
};
CodeCell.prototype.expand = function () {
if (this.collapsed) {
this.element.find('div.output').show();
this.collapsed = false;
};
};
CodeCell.prototype.toggle_output = function () {
if (this.collapsed) {
this.expand();
} else {
this.collapse();
};
};
CodeCell.prototype.set_input_prompt = function (number) {
this.input_prompt_number = number;
var ns = number || "&nbsp;";
this.element.find('div.input_prompt').html('In&nbsp;[' + ns + ']:');
};
CodeCell.prototype.get_text = function () {
return this.code_mirror.getValue();
};
CodeCell.prototype.set_text = 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') {
if (data.input !== undefined) {
this.set_text(data.input);
}
if (data.prompt_number !== undefined) {
this.set_input_prompt(data.prompt_number);
} else {
this.set_input_prompt();
};
var len = data.outputs.length;
for (var i=0; i<len; i++) {
this.append_output(data.outputs[i]);
};
if (data.collapsed !== undefined) {
if (data.collapsed) {
this.collapse();
} else {
this.expand();
};
};
};
};
CodeCell.prototype.toJSON = function () {
var data = {};
data.input = this.get_text();
data.cell_type = 'code';
if (this.input_prompt_number) {
data.prompt_number = this.input_prompt_number;
};
var outputs = [];
var len = this.outputs.length;
for (var i=0; i<len; i++) {
outputs[i] = this.outputs[i];
};
data.outputs = outputs;
data.language = 'python';
data.collapsed = this.collapsed;
return data;
};
IPython.CodeCell = CodeCell;
return IPython;
}(IPython));