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//----------------------------------------------------------------------------
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// Copyright (C) 2008-2011 The IPython Development Team
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//
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// Distributed under the terms of the BSD License. The full license is in
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// the file COPYING, distributed as part of this software.
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//----------------------------------------------------------------------------
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//============================================================================
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// CodeCell
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//============================================================================
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var IPython = (function (IPython) {
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var utils = IPython.utils;
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var CodeCell = function (notebook) {
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this.code_mirror = null;
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this.input_prompt_number = ' ';
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this.is_completing = false;
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this.completion_cursor = null;
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this.outputs = [];
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this.collapsed = false;
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IPython.Cell.apply(this, arguments);
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};
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CodeCell.prototype = new IPython.Cell();
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CodeCell.prototype.create_element = function () {
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var cell = $('<div></div>').addClass('cell border-box-sizing code_cell vbox');
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cell.attr('tabindex','2');
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var input = $('<div></div>').addClass('input hbox');
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input.append($('<div/>').addClass('prompt input_prompt'));
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var input_area = $('<div/>').addClass('input_area box-flex1');
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this.code_mirror = CodeMirror(input_area.get(0), {
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indentUnit : 4,
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mode: 'python',
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theme: 'ipython',
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readOnly: this.read_only,
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onKeyEvent: $.proxy(this.handle_codemirror_keyevent,this)
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});
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input.append(input_area);
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var output = $('<div></div>').addClass('output vbox');
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cell.append(input).append(output);
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this.element = cell;
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this.collapse();
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};
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//TODO, try to diminish the number of parameters.
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CodeCell.prototype.request_tooltip_after_time = function (pre_cursor,time,that){
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if (pre_cursor === "" || pre_cursor === "(" ) {
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// don't do anything if line beggin with '(' or is empty
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} else {
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// Will set a timer to request tooltip in `time`
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that.tooltip_timeout = setTimeout(function(){
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IPython.notebook.request_tool_tip(that, pre_cursor)
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},time);
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}
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};
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CodeCell.prototype.handle_codemirror_keyevent = function (editor, event) {
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// This method gets called in CodeMirror's onKeyDown/onKeyPress
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// handlers and is used to provide custom key handling. Its return
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// value is used to determine if CodeMirror should ignore the event:
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// true = ignore, false = don't ignore.
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// note that we are comparing and setting the time to wait at each key press.
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// a better wqy might be to generate a new function on each time change and
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// assign it to CodeCell.prototype.request_tooltip_after_time
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tooltip_wait_time = this.notebook.time_before_tooltip;
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tooltip_on_tab = this.notebook.tooltip_on_tab;
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var that = this;
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// whatever key is pressed, first, cancel the tooltip request before
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// they are sent, and remove tooltip if any
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if(event.type === 'keydown' && this.tooltip_timeout != null){
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CodeCell.prototype.remove_and_cancell_tooltip(that.tooltip_timeout);
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that.tooltip_timeout=null;
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}
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if (event.keyCode === 13 && (event.shiftKey || event.ctrlKey)) {
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// Always ignore shift-enter in CodeMirror as we handle it.
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return true;
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}else if (event.which === 40 && event.type === 'keypress' && tooltip_wait_time >= 0) {
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// triger aon keypress (!) otherwise inconsistent event.which depending on plateform
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// browser and keyboard layout !
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// Pressing '(' , request tooltip, don't forget to reappend it
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var cursor = editor.getCursor();
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var pre_cursor = editor.getRange({line:cursor.line,ch:0},cursor).trim()+'(';
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CodeCell.prototype.request_tooltip_after_time(pre_cursor,tooltip_wait_time,that);
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} else if (event.keyCode === 9 && event.type == 'keydown') {
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// Tab completion.
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var cur = editor.getCursor();
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//Do not trim here because of tooltip
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var pre_cursor = editor.getRange({line:cur.line,ch:0},cur);
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if (pre_cursor.trim() === "") {
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// Don't autocomplete if the part of the line before the cursor
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// is empty. In this case, let CodeMirror handle indentation.
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return false;
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} else if ((pre_cursor.substr(-1) === "("|| pre_cursor.substr(-1) === " ") && tooltip_on_tab ) {
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CodeCell.prototype.request_tooltip_after_time(pre_cursor,0,that);
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} else {
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pre_cursor.trim();
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// Autocomplete the current line.
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event.stop();
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var line = editor.getLine(cur.line);
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this.is_completing = true;
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this.completion_cursor = cur;
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IPython.notebook.complete_cell(this, line, cur.ch);
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return true;
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}
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} else if (event.keyCode === 8 && event.type == 'keydown') {
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// If backspace and the line ends with 4 spaces, remove them.
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var cur = editor.getCursor();
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var line = editor.getLine(cur.line);
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var ending = line.slice(-4);
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if (ending === ' ') {
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editor.replaceRange('',
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{line: cur.line, ch: cur.ch-4},
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{line: cur.line, ch: cur.ch}
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);
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event.stop();
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return true;
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} else {
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return false;
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}
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} else if (event.keyCode === 76 && event.ctrlKey && event.shiftKey
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&& event.type == 'keydown') {
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// toggle line numbers with Ctrl-Shift-L
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this.toggle_line_numbers();
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}
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else {
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// keypress/keyup also trigger on TAB press, and we don't want to
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// use those to disable tab completion.
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if (this.is_completing && event.keyCode !== 9) {
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var ed_cur = editor.getCursor();
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var cc_cur = this.completion_cursor;
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if (ed_cur.line !== cc_cur.line || ed_cur.ch !== cc_cur.ch) {
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this.is_completing = false;
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this.completion_cursor = null;
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}
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}
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return false;
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};
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return false;
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};
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CodeCell.prototype.remove_and_cancell_tooltip = function(timeout)
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{
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// note that we don't handle closing directly inside the calltip
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// as in the completer, because it is not focusable, so won't
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// get the event.
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clearTimeout(timeout);
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$('#tooltip').remove();
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}
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CodeCell.prototype.finish_tooltip = function (reply) {
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defstring=reply.definition;
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docstring=reply.docstring;
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if(docstring == null){docstring="<empty docstring>"};
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name=reply.name;
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var that = this;
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var tooltip = $('<div/>').attr('id', 'tooltip').addClass('tooltip');
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// remove to have the tooltip not Limited in X and Y
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tooltip.addClass('smalltooltip');
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var pre=$('<pre/>').html(utils.fixConsole(docstring));
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var expandlink=$('<a/>').attr('href',"#");
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expandlink.addClass("ui-corner-all"); //rounded corner
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expandlink.attr('role',"button");
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//expandlink.addClass('ui-button');
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//expandlink.addClass('ui-state-default');
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var expandspan=$('<span/>').text('Expand');
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expandspan.addClass('ui-icon');
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expandspan.addClass('ui-icon-plus');
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expandlink.append(expandspan);
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expandlink.attr('id','expanbutton');
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expandlink.click(function(){
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tooltip.removeClass('smalltooltip');
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tooltip.addClass('bigtooltip');
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$('#expanbutton').remove();
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setTimeout(function(){that.code_mirror.focus();}, 50);
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});
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var morelink=$('<a/>').attr('href',"#");
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morelink.attr('role',"button");
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morelink.addClass('ui-button');
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//morelink.addClass("ui-corner-all"); //rounded corner
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//morelink.addClass('ui-state-default');
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var morespan=$('<span/>').text('Open in Pager');
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morespan.addClass('ui-icon');
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morespan.addClass('ui-icon-arrowstop-l-n');
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morelink.append(morespan);
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morelink.click(function(){
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var msg_id = IPython.notebook.kernel.execute(name+"?");
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IPython.notebook.msg_cell_map[msg_id] = IPython.notebook.selected_cell().cell_id;
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CodeCell.prototype.remove_and_cancell_tooltip(that.tooltip_timeout);
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setTimeout(function(){that.code_mirror.focus();}, 50);
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});
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var closelink=$('<a/>').attr('href',"#");
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closelink.attr('role',"button");
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closelink.addClass('ui-button');
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//closelink.addClass("ui-corner-all"); //rounded corner
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//closelink.adClass('ui-state-default'); // grey background and blue cross
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var closespan=$('<span/>').text('Close');
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closespan.addClass('ui-icon');
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closespan.addClass('ui-icon-close');
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closelink.append(closespan);
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closelink.click(function(){
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CodeCell.prototype.remove_and_cancell_tooltip(that.tooltip_timeout);
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setTimeout(function(){that.code_mirror.focus();}, 50);
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});
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//construct the tooltip
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tooltip.append(closelink);
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tooltip.append(expandlink);
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tooltip.append(morelink);
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if(defstring){
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defstring_html= $('<pre/>').html(utils.fixConsole(defstring));
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tooltip.append(defstring_html);
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}
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tooltip.append(pre);
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var pos = this.code_mirror.cursorCoords();
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tooltip.css('left',pos.x+'px');
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tooltip.css('top',pos.yBot+'px');
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$('body').append(tooltip);
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// issues with cross-closing if multiple tooltip in less than 5sec
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// keep it comented for now
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// setTimeout(CodeCell.prototype.remove_and_cancell_tooltip, 5000);
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};
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CodeCell.prototype.finish_completing = function (matched_text, matches) {
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// console.log("Got matches", matched_text, matches);
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var newm = new Array();
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if(this.notebook.smart_completer)
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{
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kwargs = new Array();
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other = new Array();
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for(var i=0;i<matches.length; ++i){
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if(matches[i].substr(-1) === '='){
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kwargs.push(matches[i]);
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}else{other.push(matches[i]);}
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}
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newm = kwargs.concat(other);
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matches=newm;
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}
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if (!this.is_completing || matches.length === 0) {return;}
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//try to check if the user is typing tab at least twice after a word
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// and completion is "done"
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fallback_on_tooltip_after=2
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if(matches.length==1 && matched_text === matches[0])
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{
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if(this.npressed >fallback_on_tooltip_after && this.prevmatch==matched_text)
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{
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console.log('Ok, you really want to complete after pressing tab '+this.npressed+' times !');
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console.log('You should understand that there is no (more) completion for that !');
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console.log("I'll show you the tooltip, will you stop bothering me ?");
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this.request_tooltip_after_time(matched_text+'(',0,this);
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return;
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}
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this.prevmatch=matched_text
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this.npressed=this.npressed+1;
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}
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else
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{
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this.prevmatch="";
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this.npressed=0;
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}
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var that = this;
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var cur = this.completion_cursor;
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var insert = function (selected_text) {
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that.code_mirror.replaceRange(
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selected_text,
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{line: cur.line, ch: (cur.ch-matched_text.length)},
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{line: cur.line, ch: cur.ch}
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);
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};
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if (matches.length === 1) {
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insert(matches[0]);
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setTimeout(function(){that.code_mirror.focus();}, 50);
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return;
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};
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var complete = $('<div/>').addClass('completions');
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var select = $('<select/>').attr('multiple','true');
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for (var i=0; i<matches.length; ++i) {
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select.append($('<option/>').text(matches[i]));
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}
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select.children().first().attr('selected','true');
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select.attr('size',Math.min(10,matches.length));
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var pos = this.code_mirror.cursorCoords();
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complete.css('left',pos.x+'px');
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complete.css('top',pos.yBot+'px');
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complete.append(select);
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$('body').append(complete);
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var done = false;
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var close = function () {
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if (done) return;
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done = true;
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complete.remove();
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that.is_completing = false;
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that.completion_cursor = null;
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};
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var pick = function () {
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insert(select.val()[0]);
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close();
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setTimeout(function(){that.code_mirror.focus();}, 50);
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};
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select.blur(close);
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select.keydown(function (event) {
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var code = event.which;
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if (code === 13 || code === 32) {
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// Pressing SPACE or ENTER will cause a pick
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event.stopPropagation();
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event.preventDefault();
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pick();
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} else if (code === 38 || code === 40) {
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// We don't want the document keydown handler to handle UP/DOWN,
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// but we want the default action.
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event.stopPropagation();
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} else {
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// All other key presses exit completion.
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event.stopPropagation();
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event.preventDefault();
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close();
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that.code_mirror.focus();
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}
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});
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// Double click also causes a pick.
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select.dblclick(pick);
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select.focus();
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};
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CodeCell.prototype.toggle_line_numbers = function () {
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if (this.code_mirror.getOption('lineNumbers') == false) {
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this.code_mirror.setOption('lineNumbers', true);
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} else {
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this.code_mirror.setOption('lineNumbers', false);
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}
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this.code_mirror.refresh();
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};
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CodeCell.prototype.select = function () {
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IPython.Cell.prototype.select.apply(this);
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// Todo: this dance is needed because as of CodeMirror 2.12, focus is
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// not causing the cursor to blink if the editor is empty initially.
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// While this seems to fix the issue, this should be fixed
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// in CodeMirror proper.
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var s = this.code_mirror.getValue();
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this.code_mirror.focus();
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if (s === '') this.code_mirror.setValue('');
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};
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CodeCell.prototype.select_all = function () {
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var start = {line: 0, ch: 0};
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var nlines = this.code_mirror.lineCount();
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var last_line = this.code_mirror.getLine(nlines-1);
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var end = {line: nlines-1, ch: last_line.length};
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this.code_mirror.setSelection(start, end);
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};
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CodeCell.prototype.append_output = function (json) {
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this.expand();
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if (json.output_type === 'pyout') {
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this.append_pyout(json);
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} else if (json.output_type === 'pyerr') {
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this.append_pyerr(json);
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} else if (json.output_type === 'display_data') {
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this.append_display_data(json);
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} else if (json.output_type === 'stream') {
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this.append_stream(json);
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};
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this.outputs.push(json);
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};
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CodeCell.prototype.create_output_area = function () {
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var oa = $("<div/>").addClass("hbox output_area");
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oa.append($('<div/>').addClass('prompt'));
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return oa;
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};
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CodeCell.prototype.append_pyout = function (json) {
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n = json.prompt_number || ' ';
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var toinsert = this.create_output_area();
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toinsert.find('div.prompt').addClass('output_prompt').html('Out[' + n + ']:');
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this.append_mime_type(json, toinsert);
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this.element.find('div.output').append(toinsert);
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// If we just output latex, typeset it.
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if ((json.latex !== undefined) || (json.html !== undefined)) {
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MathJax.Hub.Queue(["Typeset",MathJax.Hub]);
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};
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};
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CodeCell.prototype.append_pyerr = function (json) {
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var tb = json.traceback;
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if (tb !== undefined && tb.length > 0) {
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|
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
|
|
|
this.element.find('div.'+subclass).last().find('pre').append(json.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) ) {
|
|
|
MathJax.Hub.Queue(["Typeset",MathJax.Hub]);
|
|
|
};
|
|
|
};
|
|
|
|
|
|
|
|
|
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 = $("<div/>").addClass("box_flex1 output_subarea output_text");
|
|
|
if (extra_class){
|
|
|
toinsert.addClass(extra_class);
|
|
|
}
|
|
|
toinsert.append($("<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) {
|
|
|
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) {
|
|
|
console.log('Import from JSON:', data);
|
|
|
if (data.cell_type === 'code') {
|
|
|
if (data.input !== undefined) {
|
|
|
this.set_code(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();
|
|
|
};
|
|
|
};
|
|
|
};
|
|
|
};
|
|
|
|
|
|
|
|
|
CodeCell.prototype.toJSON = function () {
|
|
|
var data = {};
|
|
|
data.input = this.get_code();
|
|
|
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;
|
|
|
// console.log('Export to JSON:',data);
|
|
|
return data;
|
|
|
};
|
|
|
|
|
|
|
|
|
IPython.CodeCell = CodeCell;
|
|
|
|
|
|
return IPython;
|
|
|
}(IPython));
|
|
|
|
