",
+ TRANSPARENT = "transparent",
+ UNSELECTABLE = "unselectable",
+
+ // Class name constants
+ MAIN_CLASS = "cleditorMain", // main containing div
+ TOOLBAR_CLASS = "cleditorToolbar", // toolbar div inside main div
+ GROUP_CLASS = "cleditorGroup", // group divs inside the toolbar div
+ BUTTON_CLASS = "cleditorButton", // button divs inside group div
+ DISABLED_CLASS = "cleditorDisabled",// disabled button divs
+ DIVIDER_CLASS = "cleditorDivider", // divider divs inside group div
+ POPUP_CLASS = "cleditorPopup", // popup divs inside body
+ LIST_CLASS = "cleditorList", // list popup divs inside body
+ COLOR_CLASS = "cleditorColor", // color popup div inside body
+ PROMPT_CLASS = "cleditorPrompt", // prompt popup divs inside body
+ MSG_CLASS = "cleditorMsg", // message popup div inside body
+
+ // Test for ie
+ ie = $.browser.msie,
+ ie6 = /msie\s6/i.test(navigator.userAgent),
+
+ // Test for iPhone/iTouch/iPad
+ iOS = /iphone|ipad|ipod/i.test(navigator.userAgent),
+
+ // Popups are created once as needed and shared by all editor instances
+ popups = {},
+
+ // Used to prevent the document click event from being bound more than once
+ documentClickAssigned,
+
+ // Local copy of the buttons object
+ buttons = $.cleditor.buttons;
+
+ //===============
+ // Initialization
+ //===============
+
+ // Expand the buttons.init string back into the buttons object
+ // and create seperate object properties for each button.
+ // e.g. buttons.size.title = "Font Size"
+ $.each(buttons.init.split("|"), function(idx, button) {
+ var items = button.split(","), name = items[0];
+ buttons[name] = {
+ stripIndex: idx,
+ name: name,
+ title: items[1] === "" ? name.charAt(0).toUpperCase() + name.substr(1) : items[1],
+ command: items[2] === "" ? name : items[2],
+ popupName: items[3] === "" ? name : items[3]
+ };
+ });
+ delete buttons.init;
+
+ //============
+ // Constructor
+ //============
+
+ // cleditor - creates a new editor for the passed in textarea element
+ cleditor = function(area, options) {
+
+ var editor = this;
+
+ // Get the defaults and override with options
+ editor.options = options = $.extend({}, $.cleditor.defaultOptions, options);
+
+ // Hide the textarea and associate it with this editor
+ var $area = editor.$area = $(area)
+ .hide()
+ .data(CLEDITOR, editor)
+ .blur(function() {
+ // Update the iframe when the textarea loses focus
+ updateFrame(editor, true);
+ });
+
+ // Create the main container and append the textarea
+ var $main = editor.$main = $(DIV_TAG)
+ .addClass(MAIN_CLASS)
+ .width(options.width)
+ .height(options.height);
+
+ // Create the toolbar
+ var $toolbar = editor.$toolbar = $(DIV_TAG)
+ .addClass(TOOLBAR_CLASS)
+ .appendTo($main);
+
+ // Add the first group to the toolbar
+ var $group = $(DIV_TAG)
+ .addClass(GROUP_CLASS)
+ .appendTo($toolbar);
+
+ // Add the buttons to the toolbar
+ $.each(options.controls.split(" "), function(idx, buttonName) {
+ if (buttonName === "") return true;
+
+ // Divider
+ if (buttonName == "|") {
+
+ // Add a new divider to the group
+ var $div = $(DIV_TAG)
+ .addClass(DIVIDER_CLASS)
+ .appendTo($group);
+
+ // Create a new group
+ $group = $(DIV_TAG)
+ .addClass(GROUP_CLASS)
+ .appendTo($toolbar);
+
+ }
+
+ // Button
+ else {
+
+ // Get the button definition
+ var button = buttons[buttonName];
+
+ // Add a new button to the group
+ var $buttonDiv = $(DIV_TAG)
+ .data(BUTTON_NAME, button.name)
+ .addClass(BUTTON_CLASS)
+ .attr("title", button.title)
+ .bind(CLICK, $.proxy(buttonClick, editor))
+ .appendTo($group)
+ .hover(hoverEnter, hoverLeave);
+
+ // Prepare the button image
+ var map = {};
+ if (button.css) map = button.css;
+ else if (button.image) map.backgroundImage = imageUrl(button.image);
+ if (button.stripIndex) map.backgroundPosition = button.stripIndex * -24;
+ $buttonDiv.css(map);
+
+ // Add the unselectable attribute for ie
+ if (ie)
+ $buttonDiv.attr(UNSELECTABLE, "on");
+
+ // Create the popup
+ if (button.popupName)
+ createPopup(button.popupName, options, button.popupClass,
+ button.popupContent, button.popupHover);
+
+ }
+
+ });
+
+ // Add the main div to the DOM and append the textarea
+ $main.insertBefore($area)
+ .append($area);
+
+ // Bind the document click event handler
+ if (!documentClickAssigned) {
+ $(document).click(function(e) {
+ // Dismiss all non-prompt popups
+ var $target = $(e.target);
+ if (!$target.add($target.parents()).is("." + PROMPT_CLASS))
+ hidePopups();
+ });
+ documentClickAssigned = true;
+ }
+
+ // Bind the window resize event when the width or height is auto or %
+ if (/auto|%/.test("" + options.width + options.height))
+ $(window).resize(function() {refresh(editor);});
+
+ // Create the iframe and resize the controls
+ refresh(editor);
+
+ };
+
+ //===============
+ // Public Methods
+ //===============
+
+ var fn = cleditor.prototype,
+
+ // Expose the following private functions as methods on the cleditor object.
+ // The closure compiler will rename the private functions. However, the
+ // exposed method names on the cleditor object will remain fixed.
+ methods = [
+ ["clear", clear],
+ ["disable", disable],
+ ["execCommand", execCommand],
+ ["focus", focus],
+ ["hidePopups", hidePopups],
+ ["sourceMode", sourceMode, true],
+ ["refresh", refresh],
+ ["select", select],
+ ["selectedHTML", selectedHTML, true],
+ ["selectedText", selectedText, true],
+ ["showMessage", showMessage],
+ ["updateFrame", updateFrame],
+ ["updateTextArea", updateTextArea]
+ ];
+
+ $.each(methods, function(idx, method) {
+ fn[method[0]] = function() {
+ var editor = this, args = [editor];
+ // using each here would cast booleans into objects!
+ for(var x = 0; x < arguments.length; x++) {args.push(arguments[x]);}
+ var result = method[1].apply(editor, args);
+ if (method[2]) return result;
+ return editor;
+ };
+ });
+
+ // change - shortcut for .bind("change", handler) or .trigger("change")
+ fn.change = function(handler) {
+ var $this = $(this);
+ return handler ? $this.bind(CHANGE, handler) : $this.trigger(CHANGE);
+ };
+
+ //===============
+ // Event Handlers
+ //===============
+
+ // buttonClick - click event handler for toolbar buttons
+ function buttonClick(e) {
+
+ var editor = this,
+ buttonDiv = e.target,
+ buttonName = $.data(buttonDiv, BUTTON_NAME),
+ button = buttons[buttonName],
+ popupName = button.popupName,
+ popup = popups[popupName];
+
+ // Check if disabled
+ if (editor.disabled || $(buttonDiv).attr(DISABLED) == DISABLED)
+ return;
+
+ // Fire the buttonClick event
+ var data = {
+ editor: editor,
+ button: buttonDiv,
+ buttonName: buttonName,
+ popup: popup,
+ popupName: popupName,
+ command: button.command,
+ useCSS: editor.options.useCSS
+ };
+
+ if (button.buttonClick && button.buttonClick(e, data) === false)
+ return false;
+
+ // Toggle source
+ if (buttonName == "source") {
+
+ // Show the iframe
+ if (sourceMode(editor)) {
+ delete editor.range;
+ editor.$area.hide();
+ editor.$frame.show();
+ buttonDiv.title = button.title;
+ }
+
+ // Show the textarea
+ else {
+ editor.$frame.hide();
+ editor.$area.show();
+ buttonDiv.title = "Show Rich Text";
+ }
+
+ // Enable or disable the toolbar buttons
+ // IE requires the timeout
+ setTimeout(function() {refreshButtons(editor);}, 100);
+
+ }
+
+ // Check for rich text mode
+ else if (!sourceMode(editor)) {
+
+ // Handle popups
+ if (popupName) {
+ var $popup = $(popup);
+
+ // URL
+ if (popupName == "url") {
+
+ // Check for selection before showing the link url popup
+ if (buttonName == "link" && selectedText(editor) === "") {
+ showMessage(editor, "A selection is required when inserting a link.", buttonDiv);
+ return false;
+ }
+
+ // Wire up the submit button click event handler
+ $popup.children(":button")
+ .unbind(CLICK)
+ .bind(CLICK, function() {
+
+ // Insert the image or link if a url was entered
+ var $text = $popup.find(":text"),
+ url = $.trim($text.val());
+ if (url !== "")
+ execCommand(editor, data.command, url, null, data.button);
+
+ // Reset the text, hide the popup and set focus
+ $text.val("http://");
+ hidePopups();
+ focus(editor);
+
+ });
+
+ }
+
+ // Paste as Text
+ else if (popupName == "pastetext") {
+
+ // Wire up the submit button click event handler
+ $popup.children(":button")
+ .unbind(CLICK)
+ .bind(CLICK, function() {
+
+ // Insert the unformatted text replacing new lines with break tags
+ var $textarea = $popup.find("textarea"),
+ text = $textarea.val().replace(/\n/g, "
");
+ if (text !== "")
+ execCommand(editor, data.command, text, null, data.button);
+
+ // Reset the text, hide the popup and set focus
+ $textarea.val("");
+ hidePopups();
+ focus(editor);
+
+ });
+
+ }
+
+ // Show the popup if not already showing for this button
+ if (buttonDiv !== $.data(popup, BUTTON)) {
+ showPopup(editor, popup, buttonDiv);
+ return false; // stop propagination to document click
+ }
+
+ // propaginate to documnt click
+ return;
+
+ }
+
+ // Print
+ else if (buttonName == "print")
+ editor.$frame[0].contentWindow.print();
+
+ // All other buttons
+ else if (!execCommand(editor, data.command, data.value, data.useCSS, buttonDiv))
+ return false;
+
+ }
+
+ // Focus the editor
+ focus(editor);
+
+ }
+
+ // hoverEnter - mouseenter event handler for buttons and popup items
+ function hoverEnter(e) {
+ var $div = $(e.target).closest("div");
+ $div.css(BACKGROUND_COLOR, $div.data(BUTTON_NAME) ? "#FFF" : "#FFC");
+ }
+
+ // hoverLeave - mouseleave event handler for buttons and popup items
+ function hoverLeave(e) {
+ $(e.target).closest("div").css(BACKGROUND_COLOR, "transparent");
+ }
+
+ // popupClick - click event handler for popup items
+ function popupClick(e) {
+
+ var editor = this,
+ popup = e.data.popup,
+ target = e.target;
+
+ // Check for message and prompt popups
+ if (popup === popups.msg || $(popup).hasClass(PROMPT_CLASS))
+ return;
+
+ // Get the button info
+ var buttonDiv = $.data(popup, BUTTON),
+ buttonName = $.data(buttonDiv, BUTTON_NAME),
+ button = buttons[buttonName],
+ command = button.command,
+ value,
+ useCSS = editor.options.useCSS;
+
+ // Get the command value
+ if (buttonName == "font")
+ // Opera returns the fontfamily wrapped in quotes
+ value = target.style.fontFamily.replace(/"/g, "");
+ else if (buttonName == "size") {
+ if (target.tagName == "DIV")
+ target = target.children[0];
+ value = target.innerHTML;
+ }
+ else if (buttonName == "style")
+ value = "<" + target.tagName + ">";
+ else if (buttonName == "color")
+ value = hex(target.style.backgroundColor);
+ else if (buttonName == "highlight") {
+ value = hex(target.style.backgroundColor);
+ if (ie) command = 'backcolor';
+ else useCSS = true;
+ }
+
+ // Fire the popupClick event
+ var data = {
+ editor: editor,
+ button: buttonDiv,
+ buttonName: buttonName,
+ popup: popup,
+ popupName: button.popupName,
+ command: command,
+ value: value,
+ useCSS: useCSS
+ };
+
+ if (button.popupClick && button.popupClick(e, data) === false)
+ return;
+
+ // Execute the command
+ if (data.command && !execCommand(editor, data.command, data.value, data.useCSS, buttonDiv))
+ return false;
+
+ // Hide the popup and focus the editor
+ hidePopups();
+ focus(editor);
+
+ }
+
+ //==================
+ // Private Functions
+ //==================
+
+ // checksum - returns a checksum using the Adler-32 method
+ function checksum(text)
+ {
+ var a = 1, b = 0;
+ for (var index = 0; index < text.length; ++index) {
+ a = (a + text.charCodeAt(index)) % 65521;
+ b = (b + a) % 65521;
+ }
+ return (b << 16) | a;
+ }
+
+ // clear - clears the contents of the editor
+ function clear(editor) {
+ editor.$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("
" + size + "");
+ });
+
+ // Style
+ else if (popupName == "style")
+ $.each(options.styles, function(idx, style) {
+ $(DIV_TAG).appendTo($popup)
+ .html(style[1] + style[0] + style[1].replace("<", "
');
+ popupTypeClass = PROMPT_CLASS;
+ }
+
+ // Paste as Text
+ else if (popupName == "pastetext") {
+ $popup.html('Paste your content here and click 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.$area.removeAttr(DISABLED);
+ delete editor.disabled;
+ }
+
+ // Switch the iframe into design mode.
+ // ie6 does not support designMode.
+ // ie7 & ie8 do not properly support designMode="off".
+ try {
+ if (ie) editor.doc.body.contentEditable = !disabled;
+ else editor.doc.designMode = !disabled ? "on" : "off";
+ }
+ // Firefox 1.5 throws an exception that can be ignored
+ // when toggling designMode from off to on.
+ catch (err) {}
+
+ // Enable or disable the toolbar buttons
+ refreshButtons(editor);
+
+ }
+
+ // execCommand - executes a designMode command
+ function execCommand(editor, command, value, useCSS, button) {
+
+ // Restore the current ie selection
+ restoreRange(editor);
+
+ // Set the styling method
+ if (!ie) {
+ if (useCSS === undefined || useCSS === null)
+ useCSS = editor.options.useCSS;
+ editor.doc.execCommand("styleWithCSS", 0, useCSS.toString());
+ }
+
+ // Execute the command and check for error
+ var success = true, description;
+ if (ie && command.toLowerCase() == "inserthtml")
+ getRange(editor).pasteHTML(value);
+ else {
+ try { success = editor.doc.execCommand(command, 0, value || null); }
+ catch (err) { description = err.description; success = false; }
+ if (!success) {
+ if ("cutcopypaste".indexOf(command) > -1)
+ showMessage(editor, "For security reasons, your browser does not support the " +
+ command + " command. Try using the keyboard shortcut or context menu instead.",
+ button);
+ else
+ showMessage(editor,
+ (description ? description : "Error executing the " + command + " command."),
+ button);
+ }
+ }
+
+ // Enable the buttons
+ refreshButtons(editor);
+ return success;
+
+ }
+
+ // focus - sets focus to either the textarea or iframe
+ function focus(editor) {
+ setTimeout(function() {
+ if (sourceMode(editor)) editor.$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();
+ }
+
+ // Returns the hex value for the passed in string.
+ // hex("rgb(255, 0, 0)"); // #FF0000
+ // hex("#FF0000"); // #FF0000
+ // hex("#F00"); // #FF0000
+ function hex(s) {
+ var m = /rgba?\((\d+), (\d+), (\d+)/.exec(s),
+ c = s.split("");
+ if (m) {
+ s = ( m[1] << 16 | m[2] << 8 | m[3] ).toString(16);
+ while (s.length < 6)
+ s = "0" + s;
+ }
+ return "#" + (s.length == 6 ? s : c[1] + c[1] + c[2] + c[2] + c[3] + c[3]);
+ }
+
+ // 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 cssFile = "jquery.cleditor.css",
+ href = $("link[href$='" + cssFile +"']").attr("href");
+ return href.substr(0, href.length - cssFile.length) + "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 = $('