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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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"use strict";
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var utils = IPython.utils;
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var key = IPython.utils.keycodes;
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var CodeCell = function (notebook) {
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this.code_mirror = null;
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this.input_prompt_number = null;
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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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this.tooltip_timeout = null;
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this.clear_out_timeout = null;
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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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// construct a completer
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this.completer = new IPython.Completer(this);
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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){
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var that = this;
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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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if (this.read_only){
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return false;
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}
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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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var tooltip_wait_time = this.notebook.time_before_tooltip;
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var 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' ) {
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that.remove_and_cancel_tooltip();
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};
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if (event.keyCode === key.enter && (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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that.request_tooltip_after_time(pre_cursor,tooltip_wait_time);
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} else if (event.which === key.upArrow) {
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// If we are not at the top, let CM handle the up arrow and
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// prevent the global keydown handler from handling it.
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if (!that.at_top()) {
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event.stop();
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return false;
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} else {
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return true;
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};
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} else if (event.which === key.downArrow) {
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// If we are not at the bottom, let CM handle the down arrow and
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// prevent the global keydown handler from handling it.
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if (!that.at_bottom()) {
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event.stop();
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return false;
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} else {
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return true;
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};
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} else if (event.keyCode === key.tab && 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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that.request_tooltip_after_time(pre_cursor,0);
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// Prevent the event from bubbling up.
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event.stop();
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// Prevent CodeMirror from handling the tab.
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return true;
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} else {
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event.stop();
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this.completer.startCompletion();
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return true;
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};
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} else if (event.keyCode === key.backspace && 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 {
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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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return false;
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};
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return false;
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};
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CodeCell.prototype.remove_and_cancel_tooltip = function() {
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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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if (this.tooltip_timeout != null){
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clearTimeout(this.tooltip_timeout);
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$('#tooltip').remove();
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this.tooltip_timeout = null;
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}
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}
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CodeCell.prototype.finish_tooltip = function (reply) {
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// Extract call tip data; the priority is call, init, main.
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defstring = reply.call_def;
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if (defstring == null) { defstring = reply.init_definition; }
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if (defstring == null) { defstring = reply.definition; }
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docstring = reply.call_docstring;
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if (docstring == null) { docstring = reply.init_docstring; }
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if (docstring == null) { 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=$('<span/>').text('Open in Pager');
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morespan.addClass('ui-icon');
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morespan.addClass('ui-icon-arrowstop-l-n');
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morelink.append(morespan);
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morelink.click(function(){
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var msg_id = IPython.notebook.kernel.execute(name+"?");
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IPython.notebook.msg_cell_map[msg_id] = IPython.notebook.get_selected_cell().cell_id;
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that.remove_and_cancel_tooltip();
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setTimeout(function(){that.code_mirror.focus();}, 50);
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});
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var closelink=$('<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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that.remove_and_cancel_tooltip();
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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(that.remove_and_cancel_tooltip, 5000);
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};
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// called when completion came back from the kernel. this will inspect the
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// curent cell for (more) completion merge the resuults with the ones
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// comming from the kernel and forward it to the completer
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CodeCell.prototype.finish_completing = function (matched_text, matches) {
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this.completer.finish_completing(matched_text,matches);
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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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this.code_mirror.refresh();
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this.code_mirror.focus();
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// We used to need an additional refresh() after the focus, but
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// it appears that this has been fixed in CM. This bug would show
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// up on FF when a newly loaded markdown cell was edited.
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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, dynamic) {
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// If dynamic is true, javascript output will be eval'd.
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this.expand();
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this.flush_clear_timeout();
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if (json.output_type === 'pyout') {
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this.append_pyout(json, dynamic);
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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, dynamic);
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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, dynamic) {
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var 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, dynamic);
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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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this.typeset();
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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 = '';
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var len = tb.length;
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for (var i=0; i<len; i++) {
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s = s + tb[i] + '\n';
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}
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s = s + '\n';
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var toinsert = this.create_output_area();
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this.append_text(s, toinsert);
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this.element.find('div.output').append(toinsert);
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};
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};
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CodeCell.prototype.append_stream = function (json) {
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// temporary fix: if stream undefined (json file written prior to this patch),
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// default to most likely stdout:
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if (json.stream == undefined){
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json.stream = 'stdout';
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}
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if (!utils.fixConsole(json.text)){
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// fixConsole gives nothing (empty string, \r, etc.)
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// so don't append any elements, which might add undesirable space
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return;
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}
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var subclass = "output_"+json.stream;
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if (this.outputs.length > 0){
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// have at least one output to consider
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var last = this.outputs[this.outputs.length-1];
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if (last.output_type == 'stream' && json.stream == last.stream){
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// latest output was in the same stream,
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// so append directly into its pre tag
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// escape ANSI & HTML specials:
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var text = utils.fixConsole(json.text);
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this.element.find('div.'+subclass).last().find('pre').append(text);
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return;
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}
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}
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// If we got here, attach a new div
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var toinsert = this.create_output_area();
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this.append_text(json.text, toinsert, "output_stream "+subclass);
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this.element.find('div.output').append(toinsert);
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};
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CodeCell.prototype.append_display_data = function (json, dynamic) {
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var toinsert = this.create_output_area();
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this.append_mime_type(json, toinsert, dynamic);
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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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this.typeset();
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};
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};
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CodeCell.prototype.append_mime_type = function (json, element, dynamic) {
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if (json.javascript !== undefined && dynamic) {
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this.append_javascript(json.javascript, element, dynamic);
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} else if (json.html !== undefined) {
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this.append_html(json.html, element);
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} else if (json.latex !== undefined) {
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this.append_latex(json.latex, element);
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} else if (json.svg !== undefined) {
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this.append_svg(json.svg, element);
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} else if (json.png !== undefined) {
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this.append_png(json.png, element);
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} else if (json.jpeg !== undefined) {
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this.append_jpeg(json.jpeg, element);
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} else if (json.text !== undefined) {
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this.append_text(json.text, element);
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};
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};
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CodeCell.prototype.append_html = function (html, element) {
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var toinsert = $("<div/>").addClass("box_flex1 output_subarea output_html rendered_html");
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toinsert.append(html);
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element.append(toinsert);
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};
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CodeCell.prototype.append_javascript = function (js, container) {
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// We just eval the JS code, element appears in the local scope.
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var element = $("<div/>").addClass("box_flex1 output_subarea");
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container.append(element);
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// Div for js shouldn't be drawn, as it will add empty height to the area.
|
|
|
container.hide();
|
|
|
// If the Javascript appends content to `element` that should be drawn, then
|
|
|
// it must also call `container.show()`.
|
|
|
eval(js);
|
|
|
}
|
|
|
|
|
|
|
|
|
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 that = this;
|
|
|
if (this.clear_out_timeout != null){
|
|
|
// fire previous pending clear *immediately*
|
|
|
clearTimeout(this.clear_out_timeout);
|
|
|
this.clear_out_timeout = null;
|
|
|
this.clear_output_callback(this._clear_stdout, this._clear_stderr, this._clear_other);
|
|
|
}
|
|
|
// store flags for flushing the timeout
|
|
|
this._clear_stdout = stdout;
|
|
|
this._clear_stderr = stderr;
|
|
|
this._clear_other = other;
|
|
|
this.clear_out_timeout = setTimeout(function(){
|
|
|
// really clear timeout only after a short delay
|
|
|
// this reduces flicker in 'clear_output; print' cases
|
|
|
that.clear_out_timeout = null;
|
|
|
that._clear_stdout = that._clear_stderr = that._clear_other = null;
|
|
|
that.clear_output_callback(stdout, stderr, other);
|
|
|
}, 500
|
|
|
);
|
|
|
};
|
|
|
|
|
|
CodeCell.prototype.clear_output_callback = 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.flush_clear_timeout = function() {
|
|
|
var output_div = this.element.find('div.output');
|
|
|
if (this.clear_out_timeout){
|
|
|
clearTimeout(this.clear_out_timeout);
|
|
|
this.clear_out_timeout = null;
|
|
|
this.clear_output_callback(this._clear_stdout, this._clear_stderr, this._clear_other);
|
|
|
};
|
|
|
}
|
|
|
|
|
|
|
|
|
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 || " ";
|
|
|
this.element.find('div.input_prompt').html('In [' + 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++) {
|
|
|
// append with dynamic=false.
|
|
|
this.append_output(data.outputs[i], false);
|
|
|
};
|
|
|
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));
|
|
|
|
