code:
用于显示源码。主要包含一个弹框、设置显示内容以及内容的更新。
function showDialog() {
var win = editor.windowManager.open({
title: "Source code",
body: {
type: 'textbox',
name: 'code',
multiline: true,
minWidth: editor.getParam("code_dialog_width", 600),
minHeight: editor.getParam("code_dialog_height", Math.min(tinymce.DOM.getViewPort().h - 200, 500)),
spellcheck: false,
style: 'direction: ltr; text-align: left'
},
onSubmit: function(e) {
// We get a lovely "Wrong document" error in IE 11 if we
// don't move the focus to the editor before creating an undo
// transation since it tries to make a bookmark for the current selection
editor.focus(); editor.undoManager.transact(function() { //uodo管理
editor.setContent(e.data.code);
}); editor.selection.setCursorLocation(); //设置游标位置
editor.nodeChanged(); // Dispatches out a onNodeChange event to all observers. This method should be called when you need to update the UI states or element path etc.
}
}); // Gecko has a major performance issue with textarea
// contents so we need to set it when all reflows are done
win.find('#code').value(editor.getContent({source_view: true}));//在窗口外设置窗口内的字段内容。其实里面的参数可写可不写,默认是html格式,见L32486
}
代码比较简短,主要的函数调用,都是‘系统’函数的调用。
关于uodo的transact:
就是说,把dom改变的操作,放到callback中去执行以下,然后,uodo管理器会记录这个改变,并压入堆中。
涉及的核心函数:
editor.getContent (L32482, 核心的操作是L32497的body.innerHTML)、editor.setContent、editor.undoManager.transact、