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+
+/*
+ This modules adds code mirror code rendering to items on the page that
+ contain code. To enable it on your elements add the classname:
+ .deck-codemirror to your container and the classname 'codemirror-item'
+ to any block that you wish to codemirrorify.
+*/
+(function($, deck, undefined) {
+
+ var $d = $(document);
+
+ /*
+ Extends defaults/options.
+
+ options.classes.codemirror
+ This class is added to the deck container when there is code in the
+ slide that should be
+
+ options.selectors.codemirror-item
+ This class should be added to the element containing code that should
+ be highlighted.
+ */
+ $.extend(true, $[deck].defaults, {
+ classes: {
+ codemirror: 'deck-codemirror',
+ codemirrorresult: 'deck-codemirror-result'
+ },
+
+ selectors: {
+ codemirroritem: '.code',
+ },
+
+ data : {
+ codemirrorified: 'codemirrorified'
+ },
+ codemirror : {
+ lineNumbers : true,
+ theme : "default",
+ mode : "javascript",
+ theme : "default",
+ indentUnit : 1,
+ indentWithTabs : false,
+ runnable : false
+ }
+ });
+
+ // flag to indicate that we are currently in the editor. Required to stop keypress
+ // propagation to all other extensions.
+ var inEditor = false;
+
+ // a helper private function that can be used to "codemirror" a slide if that slide
+ // has any elements with the proper classname.
+ var codemirrorify = function(slide) {
+ var $container = $[deck]('getContainer'),
+ opts = $[deck]('getOptions'),
+ codeblocks = $(slide).find(opts.selectors.codemirroritem);
+
+ // go through all code blocks
+ $.each(codeblocks, function(i, codeblock) {
+
+ // if codeblock hasn't been codemirrorified yet
+ if (!$.data(codeblock, opts.data.codemirrorified)) {
+
+ // initialize defaults.
+ var codeblock = $(codeblock),
+ editor = null,
+ options = $.extend(opts.codemirror,
+ {
+ mode : !!codeblock.attr('mode') ? codeblock.attr('mode') : opts.codemirror.mode,
+ theme : !!codeblock.attr('theme') ? codeblock.attr('theme') : opts.codemirror.theme,
+ onFocus : function(e) {
+ inEditor = true;
+ },
+ onBlur : function(e) {
+ inEditor = false;
+ }
+ }
+ );
+
+ // if this is a textarea just use the codemirror shorthand.
+ if (codeblock.get(0).nodeName.toUpperCase() === "TEXTAREA") {
+ editor = CodeMirror.fromTextArea(codeblock[0], options);
+ } else {
+ // else codemirror the element's content and attach to element parent.
+ var parent = codeblock.parent();
+ codeblock.hide();
+ editor = CodeMirror(parent[0],
+ $.extend(options, {
+ value : codeblock.html()
+ })
+ );
+ }
+
+ // mark that this code block has been codemirrored.
+ $.data(codeblock[0], opts.data.codemirrorified, 'true');
+
+ // attach a listener to this event to make sure that all other keybindings
+ // don't trigger on keypress.
+ $(editor.getWrapperElement()).keydown(function(e) {
+ e.stopPropagation();
+ });
+
+ if (opts.codemirror.runnable || codeblock.attr("runnable")) {
+ // make the code runnable
+ var wrapper = editor.getWrapperElement(),
+ button = $('', {
+ "class" : "button",
+ text : "Run"
+ }).prependTo(wrapper),
+ output = $('
', {
+ "class" : opts.classes.codemirrorresult
+ }).appendTo($(wrapper).parent());
+
+ button.click(function(editor, output){
+ return function(event) {
+
+ // save the default logging behavior.
+ var real_console_log = console.log;
+
+ // Following Dean Edward's fantastic sandbox code:
+ // http://dean.edwards.name/weblog/2006/11/sandbox/+evaluating+js+in+an+iframe
+ // create an iframe sandbox for this element.
+ var iframe = $("