forked from qwerty/tupali
1191 lines
42 KiB
JavaScript
1191 lines
42 KiB
JavaScript
/*!
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CLEditor WYSIWYG HTML Editor v1.4.5
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http://premiumsoftware.net/CLEditor
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requires jQuery v1.4.2 or later
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Copyright 2010, Chris Landowski, Premium Software, LLC
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Dual licensed under the MIT or GPL Version 2 licenses.
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*/
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(function ($) {
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//==============
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// jQuery Plugin
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//==============
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$.cleditor = {
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// Define the defaults used for all new cleditor instances
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defaultOptions: {
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width: 'auto', // width not including margins, borders or padding
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height: 250, // height not including margins, borders or padding
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controls: // controls to add to the toolbar
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"bold italic underline strikethrough subscript superscript | font size " +
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"style | color highlight removeformat | bullets numbering | outdent " +
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"indent | alignleft center alignright justify | undo redo | " +
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"rule image link unlink | cut copy paste pastetext | print source",
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colors: // colors in the color popup
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"FFF FCC FC9 FF9 FFC 9F9 9FF CFF CCF FCF " +
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"CCC F66 F96 FF6 FF3 6F9 3FF 6FF 99F F9F " +
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"BBB F00 F90 FC6 FF0 3F3 6CC 3CF 66C C6C " +
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"999 C00 F60 FC3 FC0 3C0 0CC 36F 63F C3C " +
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"666 900 C60 C93 990 090 399 33F 60C 939 " +
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"333 600 930 963 660 060 366 009 339 636 " +
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"000 300 630 633 330 030 033 006 309 303",
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fonts: // font names in the font popup
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"Arial,Arial Black,Comic Sans MS,Courier New,Narrow,Garamond," +
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"Georgia,Impact,Sans Serif,Serif,Tahoma,Trebuchet MS,Verdana",
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sizes: // sizes in the font size popup
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"1,2,3,4,5,6,7",
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styles: // styles in the style popup
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[["Paragraph", "<p>"], ["Header 1", "<h1>"], ["Header 2", "<h2>"],
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["Header 3", "<h3>"], ["Header 4", "<h4>"], ["Header 5", "<h5>"],
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["Header 6", "<h6>"]],
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useCSS: true, // use CSS to style HTML when possible (not supported in ie)
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docType: // Document type contained within the editor
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'<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">',
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docCSSFile: // CSS file used to style the document contained within the editor
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"",
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bodyStyle: // style to assign to document body contained within the editor
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"margin:4px; font:10pt Arial,Verdana; cursor:text"
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},
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// Define all usable toolbar buttons - the init string property is
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// expanded during initialization back into the buttons object and
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// separate object properties are created for each button.
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// e.g. buttons.size.title = "Font Size"
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buttons: {
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// name,title,command,popupName (""=use name)
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init:
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"bold,,|" +
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"italic,,|" +
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"underline,,|" +
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"strikethrough,,|" +
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"subscript,,|" +
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"superscript,,|" +
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"font,,fontname,|" +
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"size,Font Size,fontsize,|" +
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"style,,formatblock,|" +
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"color,Font Color,forecolor,|" +
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"highlight,Text Highlight Color,hilitecolor,color|" +
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"removeformat,Remove Formatting,|" +
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"bullets,,insertunorderedlist|" +
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"numbering,,insertorderedlist|" +
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"outdent,,|" +
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"indent,,|" +
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"alignleft,Align Text Left,justifyleft|" +
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"center,,justifycenter|" +
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"alignright,Align Text Right,justifyright|" +
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"justify,,justifyfull|" +
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"undo,,|" +
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"redo,,|" +
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"rule,Insert Horizontal Rule,inserthorizontalrule|" +
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"image,Insert Image,insertimage,url|" +
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"link,Insert Hyperlink,createlink,url|" +
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"unlink,Remove Hyperlink,|" +
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"cut,,|" +
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"copy,,|" +
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"paste,,|" +
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"pastetext,Paste as Text,inserthtml,|" +
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"print,,|" +
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"source,Show Source"
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},
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// imagesPath - returns the path to the images folder
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imagesPath: function () { return imagesPath(); }
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};
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// cleditor - creates a new editor for each of the matched textareas
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$.fn.cleditor = function (options) {
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// Create a new jQuery object to hold the results
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var $result = $([]);
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// Loop through all matching textareas and create the editors
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this.each(function (idx, elem) {
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if (elem.tagName.toUpperCase() === "TEXTAREA") {
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var data = $.data(elem, CLEDITOR);
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if (!data) data = new cleditor(elem, options);
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$result = $result.add(data);
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}
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});
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// return the new jQuery object
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return $result;
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};
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//==================
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// Private Variables
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//==================
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var
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// Misc constants
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BACKGROUND_COLOR = "backgroundColor",
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BLURRED = "blurred",
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BUTTON = "button",
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BUTTON_NAME = "buttonName",
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CHANGE = "change",
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CLEDITOR = "cleditor",
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CLICK = "click",
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DISABLED = "disabled",
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DIV_TAG = "<div>",
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FOCUSED = "focused",
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TRANSPARENT = "transparent",
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UNSELECTABLE = "unselectable",
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// Class name constants
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MAIN_CLASS = "cleditorMain", // main containing div
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TOOLBAR_CLASS = "cleditorToolbar", // toolbar div inside main div
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GROUP_CLASS = "cleditorGroup", // group divs inside the toolbar div
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BUTTON_CLASS = "cleditorButton", // button divs inside group div
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DISABLED_CLASS = "cleditorDisabled",// disabled button divs
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DIVIDER_CLASS = "cleditorDivider", // divider divs inside group div
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POPUP_CLASS = "cleditorPopup", // popup divs inside body
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LIST_CLASS = "cleditorList", // list popup divs inside body
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COLOR_CLASS = "cleditorColor", // color popup div inside body
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PROMPT_CLASS = "cleditorPrompt", // prompt popup divs inside body
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MSG_CLASS = "cleditorMsg", // message popup div inside body
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// Browser detection
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ua = navigator.userAgent.toLowerCase(),
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ie = /msie/.test(ua),
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ie6 = /msie\s6/.test(ua),
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iege11 = /(trident)(?:.*rv:([\w.]+))?/.test(ua),
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webkit = /webkit/.test(ua),
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// Test for iPhone/iTouch/iPad
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iOS = /iPhone|iPad|iPod/i.test(ua),
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// Popups are created once as needed and shared by all editor instances
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popups = {},
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// Used to prevent the document click event from being bound more than once
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documentClickAssigned,
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// Local copy of the buttons object
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buttons = $.cleditor.buttons;
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//===============
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// Initialization
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//===============
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// Expand the buttons.init string back into the buttons object
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// and create seperate object properties for each button.
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// e.g. buttons.size.title = "Font Size"
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$.each(buttons.init.split("|"), function (idx, button) {
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var items = button.split(","), name = items[0];
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buttons[name] = {
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stripIndex: idx,
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name: name,
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title: items[1] === "" ? name.charAt(0).toUpperCase() + name.substr(1) : items[1],
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command: items[2] === "" ? name : items[2],
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popupName: items[3] === "" ? name : items[3]
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};
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});
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delete buttons.init;
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//============
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// Constructor
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//============
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// cleditor - creates a new editor for the passed in textarea element
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cleditor = function (area, options) {
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var editor = this;
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// Get the defaults and override with options
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editor.options = options = $.extend({}, $.cleditor.defaultOptions, options);
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// Hide the textarea and associate it with this editor
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var $area = editor.$area = $(area)
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.css({ border: "none", margin: 0, padding: 0 }) // Needed for IE6 & 7 (won't work in CSS file)
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.hide()
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.data(CLEDITOR, editor)
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.blur(function () {
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// Update the iframe when the textarea loses focus
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updateFrame(editor, true);
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});
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// Create the main container
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var $main = editor.$main = $(DIV_TAG)
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.addClass(MAIN_CLASS)
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.width(options.width)
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.height(options.height);
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// Create the toolbar
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var $toolbar = editor.$toolbar = $(DIV_TAG)
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.addClass(TOOLBAR_CLASS)
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.appendTo($main);
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// Add the first group to the toolbar
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var $group = $(DIV_TAG)
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.addClass(GROUP_CLASS)
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.appendTo($toolbar);
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// Initialize the group width
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var groupWidth = 0;
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// Add the buttons to the toolbar
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$.each(options.controls.split(" "), function (idx, buttonName) {
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if (buttonName === "") return true;
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// Divider
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if (buttonName === "|") {
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// Add a new divider to the group
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var $div = $(DIV_TAG)
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.addClass(DIVIDER_CLASS)
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.appendTo($group);
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// Update the group width
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$group.width(groupWidth + 1);
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groupWidth = 0;
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// Create a new group
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$group = $(DIV_TAG)
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.addClass(GROUP_CLASS)
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.appendTo($toolbar);
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}
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// Button
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else {
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// Get the button definition
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var button = buttons[buttonName];
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// Add a new button to the group
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var $buttonDiv = $(DIV_TAG)
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.data(BUTTON_NAME, button.name)
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.addClass(BUTTON_CLASS)
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.attr("title", button.title)
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.bind(CLICK, $.proxy(buttonClick, editor))
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.appendTo($group)
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.hover(hoverEnter, hoverLeave);
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// Update the group width
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groupWidth += 24;
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$group.width(groupWidth + 1);
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// Prepare the button image
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var map = {};
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if (button.css) map = button.css;
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else if (button.image) map.backgroundImage = imageUrl(button.image);
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if (button.stripIndex) map.backgroundPosition = button.stripIndex * -24;
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$buttonDiv.css(map);
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// Add the unselectable attribute for ie
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if (ie)
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$buttonDiv.attr(UNSELECTABLE, "on");
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// Create the popup
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if (button.popupName)
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createPopup(button.popupName, options, button.popupClass,
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button.popupContent, button.popupHover);
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}
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});
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// Add the main div to the DOM and append the textarea
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$main.insertBefore($area)
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.append($area);
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// Bind the document click event handler
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if (!documentClickAssigned) {
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$(document).click(function (e) {
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// Dismiss all non-prompt popups
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var $target = $(e.target);
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if (!$target.add($target.parents()).is("." + PROMPT_CLASS))
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hidePopups();
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});
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documentClickAssigned = true;
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}
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// Bind the window resize event when the width or height is auto or %
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if (/auto|%/.test("" + options.width + options.height))
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$(window).bind("resize.cleditor", function () { refresh(editor); });
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// Create the iframe and resize the controls
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refresh(editor);
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};
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//===============
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// Public Methods
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//===============
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var fn = cleditor.prototype,
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// Expose the following private functions as methods on the cleditor object.
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// The closure compiler will rename the private functions. However, the
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// exposed method names on the cleditor object will remain fixed.
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methods = [
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["clear", clear],
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["disable", disable],
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["execCommand", execCommand],
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["focus", focus],
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["hidePopups", hidePopups],
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["sourceMode", sourceMode, true],
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["refresh", refresh],
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["select", select],
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["selectedHTML", selectedHTML, true],
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["selectedText", selectedText, true],
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["showMessage", showMessage],
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["updateFrame", updateFrame],
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["updateTextArea", updateTextArea]
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];
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$.each(methods, function (idx, method) {
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fn[method[0]] = function () {
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var editor = this, args = [editor];
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// using each here would cast booleans into objects!
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for (var x = 0; x < arguments.length; x++) { args.push(arguments[x]); }
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var result = method[1].apply(editor, args);
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if (method[2]) return result;
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return editor;
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};
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});
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// blurred - shortcut for .bind("blurred", handler) or .trigger("blurred")
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fn.blurred = function (handler) {
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var $this = $(this);
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return handler ? $this.bind(BLURRED, handler) : $this.trigger(BLURRED);
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};
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// change - shortcut for .bind("change", handler) or .trigger("change")
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fn.change = function change(handler) {
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var $this = $(this);
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return handler ? $this.bind(CHANGE, handler) : $this.trigger(CHANGE);
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};
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// focused - shortcut for .bind("focused", handler) or .trigger("focused")
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fn.focused = function (handler) {
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var $this = $(this);
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return handler ? $this.bind(FOCUSED, handler) : $this.trigger(FOCUSED);
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};
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//===============
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// Event Handlers
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//===============
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// buttonClick - click event handler for toolbar buttons
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function buttonClick(e) {
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var editor = this,
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buttonDiv = e.target,
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buttonName = $.data(buttonDiv, BUTTON_NAME),
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button = buttons[buttonName],
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popupName = button.popupName,
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popup = popups[popupName];
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// Check if disabled
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if (editor.disabled || $(buttonDiv).attr(DISABLED) === DISABLED)
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return;
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// Fire the buttonClick event
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var data = {
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editor: editor,
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button: buttonDiv,
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buttonName: buttonName,
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popup: popup,
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popupName: popupName,
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command: button.command,
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useCSS: editor.options.useCSS
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};
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if (button.buttonClick && button.buttonClick(e, data) === false)
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return false;
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// Toggle source
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if (buttonName === "source") {
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// Show the iframe
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if (sourceMode(editor)) {
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delete editor.range;
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editor.$area.hide();
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editor.$frame.show();
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buttonDiv.title = button.title;
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}
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// Show the textarea
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else {
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editor.$frame.hide();
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editor.$area.show();
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buttonDiv.title = "Show Rich Text";
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}
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}
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// Check for rich text mode
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else if (!sourceMode(editor)) {
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// Handle popups
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if (popupName) {
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var $popup = $(popup);
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// URL
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if (popupName === "url") {
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// Check for selection before showing the link url popup
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if (buttonName === "link" && selectedText(editor) === "") {
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showMessage(editor, "A selection is required when inserting a link.", buttonDiv);
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return false;
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}
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// Wire up the submit button click event handler
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$popup.children(":button")
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.unbind(CLICK)
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.bind(CLICK, function () {
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// Insert the image or link if a url was entered
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var $text = $popup.find(":text"),
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url = $.trim($text.val());
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if (url !== "")
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execCommand(editor, data.command, url, null, data.button);
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// Reset the text, hide the popup and set focus
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$text.val("http://");
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hidePopups();
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focus(editor);
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});
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}
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// Paste as Text
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else if (popupName === "pastetext") {
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// Wire up the submit button click event handler
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$popup.children(":button")
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.unbind(CLICK)
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.bind(CLICK, function () {
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// Insert the unformatted text replacing new lines with break tags
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var $textarea = $popup.find("textarea"),
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text = $textarea.val().replace(/\n/g, "<br />");
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if (text !== "")
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execCommand(editor, data.command, text, null, data.button);
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// Reset the text, hide the popup and set focus
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$textarea.val("");
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hidePopups();
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focus(editor);
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});
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}
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// Show the popup if not already showing for this button
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if (buttonDiv !== $.data(popup, BUTTON)) {
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showPopup(editor, popup, buttonDiv);
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return false; // stop propagination to document click
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}
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// propaginate to document click
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return;
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}
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// Print
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else if (buttonName === "print")
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editor.$frame[0].contentWindow.print();
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// All other buttons
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else if (!execCommand(editor, data.command, data.value, data.useCSS, buttonDiv))
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return false;
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}
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// Focus the editor
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focus(editor);
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}
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// hoverEnter - mouseenter event handler for buttons and popup items
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function hoverEnter(e) {
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var $div = $(e.target).closest("div");
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$div.css(BACKGROUND_COLOR, $div.data(BUTTON_NAME) ? "#FFF" : "#FFC");
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}
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// hoverLeave - mouseleave event handler for buttons and popup items
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function hoverLeave(e) {
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$(e.target).closest("div").css(BACKGROUND_COLOR, "transparent");
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}
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// popupClick - click event handler for popup items
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function popupClick(e) {
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var editor = this,
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popup = e.data.popup,
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target = e.target;
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// Check for message and prompt popups
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if (popup === popups.msg || $(popup).hasClass(PROMPT_CLASS))
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return;
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// Get the button info
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var buttonDiv = $.data(popup, BUTTON),
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buttonName = $.data(buttonDiv, BUTTON_NAME),
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button = buttons[buttonName],
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command = button.command,
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value,
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useCSS = editor.options.useCSS;
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// Get the command value
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if (buttonName === "font")
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// Opera returns the fontfamily wrapped in quotes
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value = target.style.fontFamily.replace(/"/g, "");
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else if (buttonName === "size") {
|
|
if (target.tagName.toUpperCase() === "DIV")
|
|
target = target.children[0];
|
|
value = target.innerHTML;
|
|
}
|
|
else if (buttonName === "style")
|
|
value = "<" + target.tagName + ">";
|
|
else if (buttonName === "color")
|
|
value = hex(target.style.backgroundColor);
|
|
else if (buttonName === "highlight") {
|
|
value = hex(target.style.backgroundColor);
|
|
if (ie) command = 'backcolor';
|
|
else useCSS = true;
|
|
}
|
|
|
|
// Fire the popupClick event
|
|
var data = {
|
|
editor: editor,
|
|
button: buttonDiv,
|
|
buttonName: buttonName,
|
|
popup: popup,
|
|
popupName: button.popupName,
|
|
command: command,
|
|
value: value,
|
|
useCSS: useCSS
|
|
};
|
|
|
|
if (button.popupClick && button.popupClick(e, data) === false)
|
|
return;
|
|
|
|
// Execute the command
|
|
if (data.command && !execCommand(editor, data.command, data.value, data.useCSS, buttonDiv))
|
|
return false;
|
|
|
|
// Hide the popup and focus the editor
|
|
hidePopups();
|
|
focus(editor);
|
|
|
|
}
|
|
|
|
//==================
|
|
// Private Functions
|
|
//==================
|
|
|
|
// checksum - returns a checksum using the Adler-32 method
|
|
function checksum(text) {
|
|
var a = 1, b = 0;
|
|
for (var index = 0; index < text.length; ++index) {
|
|
a = (a + text.charCodeAt(index)) % 65521;
|
|
b = (b + a) % 65521;
|
|
}
|
|
return (b << 16) | a;
|
|
}
|
|
|
|
// clear - clears the contents of the editor
|
|
function clear(editor) {
|
|
editor.$area.val("");
|
|
updateFrame(editor);
|
|
}
|
|
|
|
// createPopup - creates a popup and adds it to the body
|
|
function createPopup(popupName, options, popupTypeClass, popupContent, popupHover) {
|
|
|
|
// Check if popup already exists
|
|
if (popups[popupName])
|
|
return popups[popupName];
|
|
|
|
// Create the popup
|
|
var $popup = $(DIV_TAG)
|
|
.hide()
|
|
.addClass(POPUP_CLASS)
|
|
.appendTo("body");
|
|
|
|
// Add the content
|
|
|
|
// Custom popup
|
|
if (popupContent)
|
|
$popup.html(popupContent);
|
|
|
|
// Color
|
|
else if (popupName === "color") {
|
|
var colors = options.colors.split(" ");
|
|
if (colors.length < 10)
|
|
$popup.width("auto");
|
|
$.each(colors, function (idx, color) {
|
|
$(DIV_TAG).appendTo($popup)
|
|
.css(BACKGROUND_COLOR, "#" + color);
|
|
});
|
|
popupTypeClass = COLOR_CLASS;
|
|
}
|
|
|
|
// Font
|
|
else if (popupName === "font")
|
|
$.each(options.fonts.split(","), function (idx, font) {
|
|
$(DIV_TAG).appendTo($popup)
|
|
.css("fontFamily", font)
|
|
.html(font);
|
|
});
|
|
|
|
// Size
|
|
else if (popupName === "size")
|
|
$.each(options.sizes.split(","), function (idx, size) {
|
|
$(DIV_TAG).appendTo($popup)
|
|
.html('<font size="' + size + '">' + size + '</font>');
|
|
});
|
|
|
|
// Style
|
|
else if (popupName === "style")
|
|
$.each(options.styles, function (idx, style) {
|
|
$(DIV_TAG).appendTo($popup)
|
|
.html(style[1] + style[0] + style[1].replace("<", "</"));
|
|
});
|
|
|
|
// URL
|
|
else if (popupName === "url") {
|
|
$popup.html('<label>Enter URL:<br /><input type="text" value="http://" style="width:200px" /></label><br /><input type="button" value="Submit" />');
|
|
popupTypeClass = PROMPT_CLASS;
|
|
}
|
|
|
|
// Paste as Text
|
|
else if (popupName === "pastetext") {
|
|
$popup.html('<label>Paste your content here:<br /><textarea rows="3" style="width:200px"></textarea></label><br /><input type="button" value="Submit" />');
|
|
popupTypeClass = PROMPT_CLASS;
|
|
}
|
|
|
|
// Add the popup type class name
|
|
if (!popupTypeClass && !popupContent)
|
|
popupTypeClass = LIST_CLASS;
|
|
$popup.addClass(popupTypeClass);
|
|
|
|
// Add the unselectable attribute to all items
|
|
if (ie) {
|
|
$popup.attr(UNSELECTABLE, "on")
|
|
.find("div,font,p,h1,h2,h3,h4,h5,h6")
|
|
.attr(UNSELECTABLE, "on");
|
|
}
|
|
|
|
// Add the hover effect to all items
|
|
if ($popup.hasClass(LIST_CLASS) || popupHover === true)
|
|
$popup.children().hover(hoverEnter, hoverLeave);
|
|
|
|
// Add the popup to the array and return it
|
|
popups[popupName] = $popup[0];
|
|
return $popup[0];
|
|
|
|
}
|
|
|
|
// disable - enables or disables the editor
|
|
function disable(editor, disabled) {
|
|
|
|
// Update the textarea and save the state
|
|
if (disabled) {
|
|
editor.$area.attr(DISABLED, DISABLED);
|
|
editor.disabled = true;
|
|
}
|
|
else {
|
|
editor.$area.removeAttr(DISABLED);
|
|
delete editor.disabled;
|
|
}
|
|
|
|
// Switch the iframe into design mode.
|
|
// ie6 does not support designMode.
|
|
// ie7 & ie8 do not properly support designMode="off".
|
|
try {
|
|
if (ie) editor.doc.body.contentEditable = !disabled;
|
|
else editor.doc.designMode = !disabled ? "on" : "off";
|
|
}
|
|
// Firefox 1.5 throws an exception that can be ignored
|
|
// when toggling designMode from off to on.
|
|
catch (err) { }
|
|
|
|
// Enable or disable the toolbar buttons
|
|
refreshButtons(editor);
|
|
|
|
}
|
|
|
|
// execCommand - executes a designMode command
|
|
function execCommand(editor, command, value, useCSS, button) {
|
|
|
|
// Restore the current ie selection
|
|
restoreRange(editor);
|
|
|
|
// Set the styling method
|
|
if (!ie) {
|
|
if (useCSS === undefined || useCSS === null)
|
|
useCSS = editor.options.useCSS;
|
|
editor.doc.execCommand("styleWithCSS", 0, useCSS.toString());
|
|
}
|
|
|
|
// Execute the command and check for error
|
|
var inserthtml = command.toLowerCase() === "inserthtml";
|
|
if (ie && inserthtml)
|
|
getRange(editor).pasteHTML(value);
|
|
|
|
else if (iege11 && inserthtml) {
|
|
var selection = getSelection(editor),
|
|
range = selection.getRangeAt(0);
|
|
range.deleteContents();
|
|
range.insertNode(range.createContextualFragment(value));
|
|
selection.removeAllRanges();
|
|
selection.addRange(range);
|
|
}
|
|
|
|
else {
|
|
var success = true, message;
|
|
try { success = editor.doc.execCommand(command, 0, value || null); }
|
|
catch (err) { message = err.message; success = false; }
|
|
if (!success) {
|
|
if ("cutcopypaste".indexOf(command) > -1)
|
|
showMessage(editor, "For security reasons, your browser does not support the " +
|
|
command + " command. Try using the keyboard shortcut or context menu instead.",
|
|
button);
|
|
else
|
|
showMessage(editor,
|
|
(message ? message : "Error executing the " + command + " command."),
|
|
button);
|
|
}
|
|
}
|
|
|
|
// Enable the buttons and update the textarea
|
|
refreshButtons(editor);
|
|
updateTextArea(editor, true);
|
|
return success;
|
|
|
|
}
|
|
|
|
// focus - sets focus to either the textarea or iframe
|
|
function focus(editor) {
|
|
setTimeout(function () {
|
|
if (sourceMode(editor)) editor.$area.focus();
|
|
else editor.$frame[0].contentWindow.focus();
|
|
refreshButtons(editor);
|
|
}, 0);
|
|
}
|
|
|
|
// getRange - gets the current text range object
|
|
function getRange(editor) {
|
|
if (ie) return getSelection(editor).createRange();
|
|
return getSelection(editor).getRangeAt(0);
|
|
}
|
|
|
|
// getSelection - gets the current text range object
|
|
function getSelection(editor) {
|
|
if (ie) return editor.doc.selection;
|
|
return editor.$frame[0].contentWindow.getSelection();
|
|
}
|
|
|
|
// hex - returns the hex value for the passed in color string
|
|
function hex(s) {
|
|
|
|
// hex("rgb(255, 0, 0)") returns #FF0000
|
|
var m = /rgba?\((\d+), (\d+), (\d+)/.exec(s);
|
|
if (m) {
|
|
s = (m[1] << 16 | m[2] << 8 | m[3]).toString(16);
|
|
while (s.length < 6)
|
|
s = "0" + s;
|
|
return "#" + s;
|
|
}
|
|
|
|
// hex("#F00") returns #FF0000
|
|
var c = s.split("");
|
|
if (s.length === 4)
|
|
return "#" + c[1] + c[1] + c[2] + c[2] + c[3] + c[3];
|
|
|
|
// hex("#FF0000") returns #FF0000
|
|
return s;
|
|
|
|
}
|
|
|
|
// hidePopups - hides all popups
|
|
function hidePopups() {
|
|
$.each(popups, function (idx, popup) {
|
|
$(popup)
|
|
.hide()
|
|
.unbind(CLICK)
|
|
.removeData(BUTTON);
|
|
});
|
|
}
|
|
|
|
// imagesPath - returns the path to the images folder
|
|
function imagesPath() {
|
|
var href = $("link[href*=cleditor]").attr("href");
|
|
return href.replace(/^(.*\/)[^\/]+$/, '$1') + "images/";
|
|
}
|
|
|
|
// imageUrl - Returns the css url string for a filemane
|
|
function imageUrl(filename) {
|
|
return "url(" + imagesPath() + filename + ")";
|
|
}
|
|
|
|
// refresh - creates the iframe and resizes the controls
|
|
function refresh(editor) {
|
|
|
|
var $main = editor.$main,
|
|
options = editor.options;
|
|
|
|
// Remove the old iframe
|
|
if (editor.$frame)
|
|
editor.$frame.remove();
|
|
|
|
// Create a new iframe
|
|
var $frame = editor.$frame = $('<iframe frameborder="0" src="javascript:true;" />')
|
|
.hide()
|
|
.appendTo($main);
|
|
|
|
// Load the iframe document content
|
|
var contentWindow = $frame[0].contentWindow,
|
|
doc = editor.doc = contentWindow.document,
|
|
$doc = $(doc);
|
|
|
|
doc.open();
|
|
doc.write(
|
|
options.docType +
|
|
'<html>' +
|
|
((options.docCSSFile === '') ? '' : '<head><link rel="stylesheet" type="text/css" href="' + options.docCSSFile + '" /></head>') +
|
|
'<body style="' + options.bodyStyle + '"></body></html>'
|
|
);
|
|
doc.close();
|
|
|
|
// Work around for bug in IE which causes the editor to lose
|
|
// focus when clicking below the end of the document.
|
|
if (ie || iege11)
|
|
$doc.click(function () { focus(editor); });
|
|
|
|
// Load the content
|
|
updateFrame(editor);
|
|
|
|
// Bind the ie specific iframe event handlers
|
|
if (ie || iege11) {
|
|
|
|
// Save the current user selection. This code is needed since IE will
|
|
// reset the selection just after the beforedeactivate event and just
|
|
// before the beforeactivate event.
|
|
$doc.bind("beforedeactivate beforeactivate selectionchange keypress keyup", function (e) {
|
|
|
|
// Flag the editor as inactive
|
|
if (e.type === "beforedeactivate")
|
|
editor.inactive = true;
|
|
|
|
// Get rid of the bogus selection and flag the editor as active
|
|
else if (e.type === "beforeactivate") {
|
|
if (!editor.inactive && editor.range && editor.range.length > 1)
|
|
editor.range.shift();
|
|
delete editor.inactive;
|
|
}
|
|
|
|
// Save the selection when the editor is active
|
|
else if (!editor.inactive) {
|
|
if (!editor.range)
|
|
editor.range = [];
|
|
editor.range.unshift(getRange(editor));
|
|
|
|
// We only need the last 2 selections
|
|
while (editor.range.length > 2)
|
|
editor.range.pop();
|
|
}
|
|
|
|
});
|
|
|
|
// Restore the text range and trigger focused event when the iframe gains focus
|
|
$frame.focus(function () {
|
|
restoreRange(editor);
|
|
$(editor).triggerHandler(FOCUSED);
|
|
});
|
|
|
|
// Trigger blurred event when the iframe looses focus
|
|
$frame.blur(function () {
|
|
$(editor).triggerHandler(BLURRED);
|
|
});
|
|
|
|
}
|
|
|
|
// Trigger focused and blurred events for all other browsers
|
|
else {
|
|
$($frame[0].contentWindow)
|
|
.focus(function () { $(editor).triggerHandler(FOCUSED); })
|
|
.blur(function () { $(editor).triggerHandler(BLURRED); });
|
|
}
|
|
|
|
// Enable the toolbar buttons and update the textarea as the user types or clicks
|
|
$doc.click(hidePopups)
|
|
.keydown(function (e) {
|
|
// Prevent Internet Explorer from going to prior page when an image
|
|
// is selected and the backspace key is pressed.
|
|
if (ie && getSelection(editor).type == "Control" && e.keyCode == 8) {
|
|
getSelection(editor).clear();
|
|
e.preventDefault();
|
|
}
|
|
})
|
|
.bind("keyup mouseup", function () {
|
|
refreshButtons(editor);
|
|
updateTextArea(editor, true);
|
|
});
|
|
|
|
// Show the textarea for iPhone/iTouch/iPad or
|
|
// the iframe when design mode is supported.
|
|
if (iOS) editor.$area.show();
|
|
else $frame.show();
|
|
|
|
// Wait for the layout to finish - shortcut for $(document).ready()
|
|
$(function () {
|
|
|
|
var $toolbar = editor.$toolbar,
|
|
$group = $toolbar.children("div:last"),
|
|
wid = $main.width();
|
|
|
|
// Resize the toolbar
|
|
var hgt = $group.offset().top + $group.outerHeight() - $toolbar.offset().top + 1;
|
|
$toolbar.height(hgt);
|
|
|
|
// Resize the iframe
|
|
hgt = (/%/.test("" + options.height) ? $main.height() : parseInt(options.height, 10)) - hgt;
|
|
$frame.width(wid).height(hgt);
|
|
|
|
// Resize the textarea. IE6 textareas have a 1px top
|
|
// & bottom margin that cannot be removed using css.
|
|
editor.$area.width(wid).height(ie6 ? hgt - 2 : hgt);
|
|
|
|
// Switch the iframe into design mode if enabled
|
|
disable(editor, editor.disabled);
|
|
|
|
// Enable or disable the toolbar buttons
|
|
refreshButtons(editor);
|
|
|
|
});
|
|
|
|
}
|
|
|
|
// refreshButtons - enables or disables buttons based on availability
|
|
function refreshButtons(editor) {
|
|
|
|
// Webkit requires focus before queryCommandEnabled will return anything but false
|
|
if (!iOS && webkit && !editor.focused) {
|
|
editor.$frame[0].contentWindow.focus();
|
|
window.focus();
|
|
editor.focused = true;
|
|
}
|
|
|
|
// Get the object used for checking queryCommandEnabled
|
|
var queryObj = editor.doc;
|
|
if (ie) queryObj = getRange(editor);
|
|
|
|
// Loop through each button
|
|
var inSourceMode = sourceMode(editor);
|
|
$.each(editor.$toolbar.find("." + BUTTON_CLASS), function (idx, elem) {
|
|
|
|
var $elem = $(elem),
|
|
button = $.cleditor.buttons[$.data(elem, BUTTON_NAME)],
|
|
command = button.command,
|
|
enabled = true;
|
|
|
|
// Determine the state
|
|
if (editor.disabled)
|
|
enabled = false;
|
|
else if (button.getEnabled) {
|
|
var data = {
|
|
editor: editor,
|
|
button: elem,
|
|
buttonName: button.name,
|
|
popup: popups[button.popupName],
|
|
popupName: button.popupName,
|
|
command: button.command,
|
|
useCSS: editor.options.useCSS
|
|
};
|
|
enabled = button.getEnabled(data);
|
|
if (enabled === undefined)
|
|
enabled = true;
|
|
}
|
|
else if (((inSourceMode || iOS) && button.name !== "source") ||
|
|
(ie && (command === "undo" || command === "redo")))
|
|
enabled = false;
|
|
else if (command && command !== "print") {
|
|
if (ie && command === "hilitecolor")
|
|
command = "backcolor";
|
|
// IE does not support inserthtml, so it's always enabled
|
|
if ((!ie && !iege11) || command !== "inserthtml") {
|
|
try { enabled = queryObj.queryCommandEnabled(command); }
|
|
catch (err) { enabled = false; }
|
|
}
|
|
}
|
|
|
|
// Enable or disable the button
|
|
if (enabled) {
|
|
$elem.removeClass(DISABLED_CLASS);
|
|
$elem.removeAttr(DISABLED);
|
|
}
|
|
else {
|
|
$elem.addClass(DISABLED_CLASS);
|
|
$elem.attr(DISABLED, DISABLED);
|
|
}
|
|
|
|
});
|
|
}
|
|
|
|
// restoreRange - restores the current ie selection
|
|
function restoreRange(editor) {
|
|
if (editor.range) {
|
|
if (ie)
|
|
editor.range[0].select();
|
|
else if (iege11)
|
|
getSelection(editor).addRange(editor.range[0]);
|
|
}
|
|
}
|
|
|
|
// select - selects all the text in either the textarea or iframe
|
|
function select(editor) {
|
|
setTimeout(function () {
|
|
if (sourceMode(editor)) editor.$area.select();
|
|
else execCommand(editor, "selectall");
|
|
}, 0);
|
|
}
|
|
|
|
// selectedHTML - returns the current HTML selection or and empty string
|
|
function selectedHTML(editor) {
|
|
restoreRange(editor);
|
|
var range = getRange(editor);
|
|
if (ie)
|
|
return range.htmlText;
|
|
var layer = $("<layer>")[0];
|
|
layer.appendChild(range.cloneContents());
|
|
var html = layer.innerHTML;
|
|
layer = null;
|
|
return html;
|
|
}
|
|
|
|
// selectedText - returns the current text selection or and empty string
|
|
function selectedText(editor) {
|
|
restoreRange(editor);
|
|
if (ie) return getRange(editor).text;
|
|
return getSelection(editor).toString();
|
|
}
|
|
|
|
// showMessage - alert replacement
|
|
function showMessage(editor, message, button) {
|
|
var popup = createPopup("msg", editor.options, MSG_CLASS);
|
|
popup.innerHTML = message;
|
|
showPopup(editor, popup, button);
|
|
}
|
|
|
|
// showPopup - shows a popup
|
|
function showPopup(editor, popup, button) {
|
|
|
|
var offset, left, top, $popup = $(popup);
|
|
|
|
// Determine the popup location
|
|
if (button) {
|
|
var $button = $(button);
|
|
offset = $button.offset();
|
|
left = --offset.left;
|
|
top = offset.top + $button.height();
|
|
}
|
|
else {
|
|
var $toolbar = editor.$toolbar;
|
|
offset = $toolbar.offset();
|
|
left = Math.floor(($toolbar.width() - $popup.width()) / 2) + offset.left;
|
|
top = offset.top + $toolbar.height() - 2;
|
|
}
|
|
|
|
// Position and show the popup
|
|
hidePopups();
|
|
$popup.css({ left: left, top: top })
|
|
.show();
|
|
|
|
// Assign the popup button and click event handler
|
|
if (button) {
|
|
$.data(popup, BUTTON, button);
|
|
$popup.bind(CLICK, { popup: popup }, $.proxy(popupClick, editor));
|
|
}
|
|
|
|
// Focus the first input element if any
|
|
setTimeout(function () {
|
|
$popup.find(":text,textarea").eq(0).focus().select();
|
|
}, 100);
|
|
|
|
}
|
|
|
|
// sourceMode - returns true if the textarea is showing
|
|
function sourceMode(editor) {
|
|
return editor.$area.is(":visible");
|
|
}
|
|
|
|
// updateFrame - updates the iframe with the textarea contents
|
|
function updateFrame(editor, checkForChange) {
|
|
|
|
var code = editor.$area.val(),
|
|
options = editor.options,
|
|
updateFrameCallback = options.updateFrame,
|
|
$body = $(editor.doc.body);
|
|
|
|
// Check for textarea change to avoid unnecessary firing
|
|
// of potentially heavy updateFrame callbacks.
|
|
if (updateFrameCallback) {
|
|
var sum = checksum(code);
|
|
if (checkForChange && editor.areaChecksum === sum)
|
|
return;
|
|
editor.areaChecksum = sum;
|
|
}
|
|
|
|
// Convert the textarea source code into iframe html
|
|
var html = updateFrameCallback ? updateFrameCallback(code) : code;
|
|
|
|
// Prevent script injection attacks by html encoding script tags
|
|
html = html.replace(/<(?=\/?script)/ig, "<");
|
|
|
|
// Update the iframe checksum
|
|
if (options.updateTextArea)
|
|
editor.frameChecksum = checksum(html);
|
|
|
|
// Update the iframe and trigger the change event
|
|
if (html !== $body.html()) {
|
|
$body.html(html);
|
|
$(editor).triggerHandler(CHANGE);
|
|
}
|
|
|
|
}
|
|
|
|
// updateTextArea - updates the textarea with the iframe contents
|
|
function updateTextArea(editor, checkForChange) {
|
|
|
|
var html = $(editor.doc.body).html(),
|
|
options = editor.options,
|
|
updateTextAreaCallback = options.updateTextArea,
|
|
$area = editor.$area;
|
|
|
|
// Check for iframe change to avoid unnecessary firing
|
|
// of potentially heavy updateTextArea callbacks.
|
|
if (updateTextAreaCallback) {
|
|
var sum = checksum(html);
|
|
if (checkForChange && editor.frameChecksum === sum)
|
|
return;
|
|
editor.frameChecksum = sum;
|
|
}
|
|
|
|
// Convert the iframe html into textarea source code
|
|
var code = updateTextAreaCallback ? updateTextAreaCallback(html) : html;
|
|
|
|
// Update the textarea checksum
|
|
if (options.updateFrame)
|
|
editor.areaChecksum = checksum(code);
|
|
|
|
// Update the textarea and trigger the change event
|
|
if (code !== $area.val()) {
|
|
$area.val(code);
|
|
$(editor).triggerHandler(CHANGE);
|
|
}
|
|
|
|
}
|
|
|
|
})(jQuery);
|