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/static/jquery.cleditor.js

http://github.com/TheOnly92/bloody.go
JavaScript | 1132 lines | 751 code | 186 blank | 195 comment | 148 complexity | 4d135f0eff0a8df4695154a1d6423dfa MD5 | raw file
   1/**
   2 @preserve CLEditor WYSIWYG HTML Editor v1.3.0
   3 http://premiumsoftware.net/cleditor
   4 requires jQuery v1.4.2 or later
   5
   6 Copyright 2010, Chris Landowski, Premium Software, LLC
   7 Dual licensed under the MIT or GPL Version 2 licenses.
   8*/
   9
  10// ==ClosureCompiler==
  11// @compilation_level SIMPLE_OPTIMIZATIONS
  12// @output_file_name jquery.cleditor.min.js
  13// ==/ClosureCompiler==
  14
  15(function($) {
  16
  17  //==============
  18  // jQuery Plugin
  19  //==============
  20
  21  $.cleditor = {
  22
  23    // Define the defaults used for all new cleditor instances
  24    defaultOptions: {
  25      width:        500, // width not including margins, borders or padding
  26      height:       250, // height not including margins, borders or padding
  27      controls:     // controls to add to the toolbar
  28                    "bold italic underline strikethrough subscript superscript | font size " +
  29                    "style | color highlight removeformat | bullets numbering | outdent " +
  30                    "indent | alignleft center alignright justify | undo redo | " +
  31                    "rule image link unlink | cut copy paste pastetext | print source",
  32      colors:       // colors in the color popup
  33                    "FFF FCC FC9 FF9 FFC 9F9 9FF CFF CCF FCF " +
  34                    "CCC F66 F96 FF6 FF3 6F9 3FF 6FF 99F F9F " +
  35                    "BBB F00 F90 FC6 FF0 3F3 6CC 3CF 66C C6C " +
  36                    "999 C00 F60 FC3 FC0 3C0 0CC 36F 63F C3C " +
  37                    "666 900 C60 C93 990 090 399 33F 60C 939 " +
  38                    "333 600 930 963 660 060 366 009 339 636 " +
  39                    "000 300 630 633 330 030 033 006 309 303",    
  40      fonts:        // font names in the font popup
  41                    "Arial,Arial Black,Comic Sans MS,Courier New,Narrow,Garamond," +
  42                    "Georgia,Impact,Sans Serif,Serif,Tahoma,Trebuchet MS,Verdana",
  43      sizes:        // sizes in the font size popup
  44                    "1,2,3,4,5,6,7",
  45      styles:       // styles in the style popup
  46                    [["Paragraph", "<p>"], ["Header 1", "<h1>"], ["Header 2", "<h2>"],
  47                    ["Header 3", "<h3>"],  ["Header 4","<h4>"],  ["Header 5","<h5>"],
  48                    ["Header 6","<h6>"]],
  49      useCSS:       false, // use CSS to style HTML when possible (not supported in ie)
  50      docType:      // Document type contained within the editor
  51                    '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">',
  52      docCSSFile:   // CSS file used to style the document contained within the editor
  53                    "", 
  54      bodyStyle:    // style to assign to document body contained within the editor
  55                    "margin:4px; font:10pt Arial,Verdana; cursor:text"
  56    },
  57
  58    // Define all usable toolbar buttons - the init string property is 
  59    //   expanded during initialization back into the buttons object and 
  60    //   seperate object properties are created for each button.
  61    //   e.g. buttons.size.title = "Font Size"
  62    buttons: {
  63      // name,title,command,popupName (""=use name)
  64      init:
  65      "bold,,|" +
  66      "italic,,|" +
  67      "underline,,|" +
  68      "strikethrough,,|" +
  69      "subscript,,|" +
  70      "superscript,,|" +
  71      "font,,fontname,|" +
  72      "size,Font Size,fontsize,|" +
  73      "style,,formatblock,|" +
  74      "color,Font Color,forecolor,|" +
  75      "highlight,Text Highlight Color,hilitecolor,color|" +
  76      "removeformat,Remove Formatting,|" +
  77      "bullets,,insertunorderedlist|" +
  78      "numbering,,insertorderedlist|" +
  79      "outdent,,|" +
  80      "indent,,|" +
  81      "alignleft,Align Text Left,justifyleft|" +
  82      "center,,justifycenter|" +
  83      "alignright,Align Text Right,justifyright|" +
  84      "justify,,justifyfull|" +
  85      "undo,,|" +
  86      "redo,,|" +
  87      "rule,Insert Horizontal Rule,inserthorizontalrule|" +
  88      "image,Insert Image,insertimage,url|" +
  89      "link,Insert Hyperlink,createlink,url|" +
  90      "unlink,Remove Hyperlink,|" +
  91      "cut,,|" +
  92      "copy,,|" +
  93      "paste,,|" +
  94      "pastetext,Paste as Text,inserthtml,|" +
  95      "print,,|" +
  96      "source,Show Source"
  97    },
  98
  99    // imagesPath - returns the path to the images folder
 100    imagesPath: function() { return imagesPath(); }
 101
 102  };
 103
 104  // cleditor - creates a new editor for each of the matched textareas
 105  $.fn.cleditor = function(options) {
 106
 107    // Create a new jQuery object to hold the results
 108    var $result = $([]);
 109
 110    // Loop through all matching textareas and create the editors
 111    this.each(function(idx, elem) {
 112      if (elem.tagName == "TEXTAREA") {
 113        var data = $.data(elem, CLEDITOR);
 114        if (!data) data = new cleditor(elem, options);
 115        $result = $result.add(data);
 116      }
 117    });
 118
 119    // return the new jQuery object
 120    return $result;
 121
 122  };
 123    
 124  //==================
 125  // Private Variables
 126  //==================
 127
 128  var
 129
 130  // Misc constants
 131  BACKGROUND_COLOR = "backgroundColor",
 132  BUTTON           = "button",
 133  BUTTON_NAME      = "buttonName",
 134  CHANGE           = "change",
 135  CLEDITOR         = "cleditor",
 136  CLICK            = "click",
 137  DISABLED         = "disabled",
 138  DIV_TAG          = "<div>",
 139  TRANSPARENT      = "transparent",
 140  UNSELECTABLE     = "unselectable",
 141
 142  // Class name constants
 143  MAIN_CLASS       = "cleditorMain",    // main containing div
 144  TOOLBAR_CLASS    = "cleditorToolbar", // toolbar div inside main div
 145  GROUP_CLASS      = "cleditorGroup",   // group divs inside the toolbar div
 146  BUTTON_CLASS     = "cleditorButton",  // button divs inside group div
 147  DISABLED_CLASS   = "cleditorDisabled",// disabled button divs
 148  DIVIDER_CLASS    = "cleditorDivider", // divider divs inside group div
 149  POPUP_CLASS      = "cleditorPopup",   // popup divs inside body
 150  LIST_CLASS       = "cleditorList",    // list popup divs inside body
 151  COLOR_CLASS      = "cleditorColor",   // color popup div inside body
 152  PROMPT_CLASS     = "cleditorPrompt",  // prompt popup divs inside body
 153  MSG_CLASS        = "cleditorMsg",     // message popup div inside body
 154
 155  // Test for ie
 156  ie = $.browser.msie,
 157  ie6 = /msie\s6/i.test(navigator.userAgent),
 158
 159  // Test for iPhone/iTouch/iPad
 160  iOS = /iphone|ipad|ipod/i.test(navigator.userAgent),
 161
 162  // Popups are created once as needed and shared by all editor instances
 163  popups = {},
 164
 165  // Used to prevent the document click event from being bound more than once
 166  documentClickAssigned,
 167
 168  // Local copy of the buttons object
 169  buttons = $.cleditor.buttons;
 170
 171  //===============
 172  // Initialization
 173  //===============
 174
 175  // Expand the buttons.init string back into the buttons object
 176  //   and create seperate object properties for each button.
 177  //   e.g. buttons.size.title = "Font Size"
 178  $.each(buttons.init.split("|"), function(idx, button) {
 179    var items = button.split(","), name = items[0];
 180    buttons[name] = {
 181      stripIndex: idx,
 182      name: name,
 183      title: items[1] === "" ? name.charAt(0).toUpperCase() + name.substr(1) : items[1],
 184      command: items[2] === "" ? name : items[2],
 185      popupName: items[3] === "" ? name : items[3]
 186    };
 187  });
 188  delete buttons.init;
 189
 190  //============
 191  // Constructor
 192  //============
 193
 194  // cleditor - creates a new editor for the passed in textarea element
 195  cleditor = function(area, options) {
 196
 197    var editor = this;
 198
 199    // Get the defaults and override with options
 200    editor.options = options = $.extend({}, $.cleditor.defaultOptions, options);
 201
 202    // Hide the textarea and associate it with this editor
 203    var $area = editor.$area = $(area)
 204      .hide()
 205      .data(CLEDITOR, editor)
 206      .blur(function() {
 207        // Update the iframe when the textarea loses focus
 208        updateFrame(editor, true);
 209      });
 210
 211    // Create the main container and append the textarea
 212    var $main = editor.$main = $(DIV_TAG)
 213      .addClass(MAIN_CLASS)
 214      .width(options.width)
 215      .height(options.height);
 216
 217    // Create the toolbar
 218    var $toolbar = editor.$toolbar = $(DIV_TAG)
 219      .addClass(TOOLBAR_CLASS)
 220      .appendTo($main);
 221
 222    // Add the first group to the toolbar
 223    var $group = $(DIV_TAG)
 224      .addClass(GROUP_CLASS)
 225      .appendTo($toolbar);
 226    
 227    // Add the buttons to the toolbar
 228    $.each(options.controls.split(" "), function(idx, buttonName) {
 229      if (buttonName === "") return true;
 230
 231      // Divider
 232      if (buttonName == "|") {
 233
 234        // Add a new divider to the group
 235        var $div = $(DIV_TAG)
 236          .addClass(DIVIDER_CLASS)
 237          .appendTo($group);
 238
 239        // Create a new group
 240        $group = $(DIV_TAG)
 241          .addClass(GROUP_CLASS)
 242          .appendTo($toolbar);
 243
 244      }
 245
 246      // Button
 247      else {
 248        
 249        // Get the button definition
 250        var button = buttons[buttonName];
 251
 252        // Add a new button to the group
 253        var $buttonDiv = $(DIV_TAG)
 254          .data(BUTTON_NAME, button.name)
 255          .addClass(BUTTON_CLASS)
 256          .attr("title", button.title)
 257          .bind(CLICK, $.proxy(buttonClick, editor))
 258          .appendTo($group)
 259          .hover(hoverEnter, hoverLeave);
 260
 261        // Prepare the button image
 262        var map = {};
 263        if (button.css) map = button.css;
 264        else if (button.image) map.backgroundImage = imageUrl(button.image);
 265        if (button.stripIndex) map.backgroundPosition = button.stripIndex * -24;
 266        $buttonDiv.css(map);
 267
 268        // Add the unselectable attribute for ie
 269        if (ie)
 270          $buttonDiv.attr(UNSELECTABLE, "on");
 271
 272        // Create the popup
 273        if (button.popupName)
 274          createPopup(button.popupName, options, button.popupClass,
 275            button.popupContent, button.popupHover);
 276        
 277      }
 278
 279    });
 280
 281    // Add the main div to the DOM and append the textarea
 282    $main.insertBefore($area)
 283      .append($area);
 284
 285    // Bind the document click event handler
 286    if (!documentClickAssigned) {
 287      $(document).click(function(e) {
 288        // Dismiss all non-prompt popups
 289        var $target = $(e.target);
 290        if (!$target.add($target.parents()).is("." + PROMPT_CLASS))
 291          hidePopups();
 292      });
 293      documentClickAssigned = true;
 294    }
 295
 296    // Bind the window resize event when the width or height is auto or %
 297    if (/auto|%/.test("" + options.width + options.height))
 298      $(window).resize(function() {refresh(editor);});
 299
 300    // Create the iframe and resize the controls
 301    refresh(editor);
 302
 303  };
 304
 305  //===============
 306  // Public Methods
 307  //===============
 308
 309  var fn = cleditor.prototype,
 310
 311  // Expose the following private functions as methods on the cleditor object.
 312  // The closure compiler will rename the private functions. However, the
 313  // exposed method names on the cleditor object will remain fixed.
 314  methods = [
 315    ["clear", clear],
 316    ["disable", disable],
 317    ["execCommand", execCommand],
 318    ["focus", focus],
 319    ["hidePopups", hidePopups],
 320    ["sourceMode", sourceMode, true],
 321    ["refresh", refresh],
 322    ["select", select],
 323    ["selectedHTML", selectedHTML, true],
 324    ["selectedText", selectedText, true],
 325    ["showMessage", showMessage],
 326    ["updateFrame", updateFrame],
 327    ["updateTextArea", updateTextArea]
 328  ];
 329
 330  $.each(methods, function(idx, method) {
 331    fn[method[0]] = function() {
 332      var editor = this, args = [editor];
 333      // using each here would cast booleans into objects!
 334      for(var x = 0; x < arguments.length; x++) {args.push(arguments[x]);}
 335      var result = method[1].apply(editor, args);
 336      if (method[2]) return result;
 337      return editor;
 338    };
 339  });
 340
 341  // change - shortcut for .bind("change", handler) or .trigger("change")
 342  fn.change = function(handler) {
 343    var $this = $(this);
 344    return handler ? $this.bind(CHANGE, handler) : $this.trigger(CHANGE);
 345  };
 346
 347  //===============
 348  // Event Handlers
 349  //===============
 350
 351  // buttonClick - click event handler for toolbar buttons
 352  function buttonClick(e) {
 353
 354    var editor = this,
 355        buttonDiv = e.target,
 356        buttonName = $.data(buttonDiv, BUTTON_NAME),
 357        button = buttons[buttonName],
 358        popupName = button.popupName,
 359        popup = popups[popupName];
 360
 361    // Check if disabled
 362    if (editor.disabled || $(buttonDiv).attr(DISABLED) == DISABLED)
 363      return;
 364
 365    // Fire the buttonClick event
 366    var data = {
 367      editor: editor,
 368      button: buttonDiv,
 369      buttonName: buttonName,
 370      popup: popup,
 371      popupName: popupName,
 372      command: button.command,
 373      useCSS: editor.options.useCSS
 374    };
 375
 376    if (button.buttonClick && button.buttonClick(e, data) === false)
 377      return false;
 378
 379    // Toggle source
 380    if (buttonName == "source") {
 381
 382      // Show the iframe
 383      if (sourceMode(editor)) {
 384        delete editor.range;
 385        editor.$area.hide();
 386        editor.$frame.show();
 387        buttonDiv.title = button.title;
 388      }
 389
 390      // Show the textarea
 391      else {
 392        editor.$frame.hide();
 393        editor.$area.show();
 394        buttonDiv.title = "Show Rich Text";
 395      }
 396
 397      // Enable or disable the toolbar buttons
 398      // IE requires the timeout
 399      setTimeout(function() {refreshButtons(editor);}, 100);
 400
 401    }
 402
 403    // Check for rich text mode
 404    else if (!sourceMode(editor)) {
 405
 406      // Handle popups
 407      if (popupName) {
 408        var $popup = $(popup);
 409
 410        // URL
 411        if (popupName == "url") {
 412
 413          // Check for selection before showing the link url popup
 414          if (buttonName == "link" && selectedText(editor) === "") {
 415            showMessage(editor, "A selection is required when inserting a link.", buttonDiv);
 416            return false;
 417          }
 418
 419          // Wire up the submit button click event handler
 420          $popup.children(":button")
 421            .unbind(CLICK)
 422            .bind(CLICK, function() {
 423
 424              // Insert the image or link if a url was entered
 425              var $text = $popup.find(":text"),
 426                url = $.trim($text.val());
 427              if (url !== "")
 428                execCommand(editor, data.command, url, null, data.button);
 429
 430              // Reset the text, hide the popup and set focus
 431              $text.val("http://");
 432              hidePopups();
 433              focus(editor);
 434
 435            });
 436
 437        }
 438
 439        // Paste as Text
 440        else if (popupName == "pastetext") {
 441
 442          // Wire up the submit button click event handler
 443          $popup.children(":button")
 444            .unbind(CLICK)
 445            .bind(CLICK, function() {
 446
 447              // Insert the unformatted text replacing new lines with break tags
 448              var $textarea = $popup.find("textarea"),
 449                text = $textarea.val().replace(/\n/g, "<br />");
 450              if (text !== "")
 451                execCommand(editor, data.command, text, null, data.button);
 452
 453              // Reset the text, hide the popup and set focus
 454              $textarea.val("");
 455              hidePopups();
 456              focus(editor);
 457
 458            });
 459
 460        }
 461
 462        // Show the popup if not already showing for this button
 463        if (buttonDiv !== $.data(popup, BUTTON)) {
 464          showPopup(editor, popup, buttonDiv);
 465          return false; // stop propagination to document click
 466        }
 467
 468        // propaginate to documnt click
 469        return;
 470
 471      }
 472
 473      // Print
 474      else if (buttonName == "print")
 475        editor.$frame[0].contentWindow.print();
 476
 477      // All other buttons
 478      else if (!execCommand(editor, data.command, data.value, data.useCSS, buttonDiv))
 479        return false;
 480
 481    }
 482
 483    // Focus the editor
 484    focus(editor);
 485
 486  }
 487
 488  // hoverEnter - mouseenter event handler for buttons and popup items
 489  function hoverEnter(e) {
 490    var $div = $(e.target).closest("div");
 491    $div.css(BACKGROUND_COLOR, $div.data(BUTTON_NAME) ? "#FFF" : "#FFC");
 492  }
 493
 494  // hoverLeave - mouseleave event handler for buttons and popup items
 495  function hoverLeave(e) {
 496    $(e.target).closest("div").css(BACKGROUND_COLOR, "transparent");
 497  }
 498
 499  // popupClick - click event handler for popup items
 500  function popupClick(e) {
 501
 502    var editor = this,
 503        popup = e.data.popup,
 504        target = e.target;
 505
 506    // Check for message and prompt popups
 507    if (popup === popups.msg || $(popup).hasClass(PROMPT_CLASS))
 508      return;
 509
 510    // Get the button info
 511    var buttonDiv = $.data(popup, BUTTON),
 512        buttonName = $.data(buttonDiv, BUTTON_NAME),
 513        button = buttons[buttonName],
 514        command = button.command,
 515        value,
 516        useCSS = editor.options.useCSS;
 517
 518    // Get the command value
 519    if (buttonName == "font")
 520      // Opera returns the fontfamily wrapped in quotes
 521      value = target.style.fontFamily.replace(/"/g, "");
 522    else if (buttonName == "size") {
 523      if (target.tagName == "DIV")
 524        target = target.children[0];
 525      value = target.innerHTML;
 526    }
 527    else if (buttonName == "style")
 528      value = "<" + target.tagName + ">";
 529    else if (buttonName == "color")
 530      value = hex(target.style.backgroundColor);
 531    else if (buttonName == "highlight") {
 532      value = hex(target.style.backgroundColor);
 533      if (ie) command = 'backcolor';
 534      else useCSS = true;
 535    }
 536
 537    // Fire the popupClick event
 538    var data = {
 539      editor: editor,
 540      button: buttonDiv,
 541      buttonName: buttonName,
 542      popup: popup,
 543      popupName: button.popupName,
 544      command: command,
 545      value: value,
 546      useCSS: useCSS
 547    };
 548
 549    if (button.popupClick && button.popupClick(e, data) === false)
 550      return;
 551
 552    // Execute the command
 553    if (data.command && !execCommand(editor, data.command, data.value, data.useCSS, buttonDiv))
 554      return false;
 555
 556    // Hide the popup and focus the editor
 557    hidePopups();
 558    focus(editor);
 559
 560  }
 561
 562  //==================
 563  // Private Functions
 564  //==================
 565
 566  // checksum - returns a checksum using the Adler-32 method
 567  function checksum(text)
 568  {
 569    var a = 1, b = 0;
 570    for (var index = 0; index < text.length; ++index) {
 571      a = (a + text.charCodeAt(index)) % 65521;
 572      b = (b + a) % 65521;
 573    }
 574    return (b << 16) | a;
 575  }
 576
 577  // clear - clears the contents of the editor
 578  function clear(editor) {
 579    editor.$area.val("");
 580    updateFrame(editor);
 581  }
 582
 583  // createPopup - creates a popup and adds it to the body
 584  function createPopup(popupName, options, popupTypeClass, popupContent, popupHover) {
 585
 586    // Check if popup already exists
 587    if (popups[popupName])
 588      return popups[popupName];
 589
 590    // Create the popup
 591    var $popup = $(DIV_TAG)
 592      .hide()
 593      .addClass(POPUP_CLASS)
 594      .appendTo("body");
 595
 596    // Add the content
 597
 598    // Custom popup
 599    if (popupContent)
 600      $popup.html(popupContent);
 601
 602    // Color
 603    else if (popupName == "color") {
 604      var colors = options.colors.split(" ");
 605      if (colors.length < 10)
 606        $popup.width("auto");
 607      $.each(colors, function(idx, color) {
 608        $(DIV_TAG).appendTo($popup)
 609          .css(BACKGROUND_COLOR, "#" + color);
 610      });
 611      popupTypeClass = COLOR_CLASS;
 612    }
 613
 614    // Font
 615    else if (popupName == "font")
 616      $.each(options.fonts.split(","), function(idx, font) {
 617        $(DIV_TAG).appendTo($popup)
 618          .css("fontFamily", font)
 619          .html(font);
 620      });
 621
 622    // Size
 623    else if (popupName == "size")
 624      $.each(options.sizes.split(","), function(idx, size) {
 625        $(DIV_TAG).appendTo($popup)
 626          .html("<font size=" + size + ">" + size + "</font>");
 627      });
 628
 629    // Style
 630    else if (popupName == "style")
 631      $.each(options.styles, function(idx, style) {
 632        $(DIV_TAG).appendTo($popup)
 633          .html(style[1] + style[0] + style[1].replace("<", "</"));
 634      });
 635
 636    // URL
 637    else if (popupName == "url") {
 638      $popup.html('Enter URL:<br><input type=text value="http://" size=35><br><input type=button value="Submit">');
 639      popupTypeClass = PROMPT_CLASS;
 640    }
 641
 642    // Paste as Text
 643    else if (popupName == "pastetext") {
 644      $popup.html('Paste your content here and click submit.<br /><textarea cols=40 rows=3></textarea><br /><input type=button value=Submit>');
 645      popupTypeClass = PROMPT_CLASS;
 646    }
 647
 648    // Add the popup type class name
 649    if (!popupTypeClass && !popupContent)
 650      popupTypeClass = LIST_CLASS;
 651    $popup.addClass(popupTypeClass);
 652
 653    // Add the unselectable attribute to all items
 654    if (ie) {
 655      $popup.attr(UNSELECTABLE, "on")
 656        .find("div,font,p,h1,h2,h3,h4,h5,h6")
 657        .attr(UNSELECTABLE, "on");
 658    }
 659
 660    // Add the hover effect to all items
 661    if ($popup.hasClass(LIST_CLASS) || popupHover === true)
 662      $popup.children().hover(hoverEnter, hoverLeave);
 663
 664    // Add the popup to the array and return it
 665    popups[popupName] = $popup[0];
 666    return $popup[0];
 667
 668  }
 669
 670  // disable - enables or disables the editor
 671  function disable(editor, disabled) {
 672
 673    // Update the textarea and save the state
 674    if (disabled) {
 675      editor.$area.attr(DISABLED, DISABLED);
 676      editor.disabled = true;
 677    }
 678    else {
 679      editor.$area.removeAttr(DISABLED);
 680      delete editor.disabled;
 681    }
 682
 683    // Switch the iframe into design mode.
 684    // ie6 does not support designMode.
 685    // ie7 & ie8 do not properly support designMode="off".
 686    try {
 687      if (ie) editor.doc.body.contentEditable = !disabled;
 688      else editor.doc.designMode = !disabled ? "on" : "off";
 689    }
 690    // Firefox 1.5 throws an exception that can be ignored
 691    // when toggling designMode from off to on.
 692    catch (err) {}
 693
 694    // Enable or disable the toolbar buttons
 695    refreshButtons(editor);
 696
 697  }
 698
 699  // execCommand - executes a designMode command
 700  function execCommand(editor, command, value, useCSS, button) {
 701
 702    // Restore the current ie selection
 703    restoreRange(editor);
 704
 705    // Set the styling method
 706    if (!ie) {
 707      if (useCSS === undefined || useCSS === null)
 708        useCSS = editor.options.useCSS;
 709      editor.doc.execCommand("styleWithCSS", 0, useCSS.toString());
 710    }
 711
 712    // Execute the command and check for error
 713    var success = true, description;
 714    if (ie && command.toLowerCase() == "inserthtml")
 715      getRange(editor).pasteHTML(value);
 716    else {
 717      try { success = editor.doc.execCommand(command, 0, value || null); }
 718      catch (err) { description = err.description; success = false; }
 719      if (!success) {
 720        if ("cutcopypaste".indexOf(command) > -1)
 721          showMessage(editor, "For security reasons, your browser does not support the " +
 722            command + " command. Try using the keyboard shortcut or context menu instead.",
 723            button);
 724        else
 725          showMessage(editor,
 726            (description ? description : "Error executing the " + command + " command."),
 727            button);
 728      }
 729    }
 730
 731    // Enable the buttons
 732    refreshButtons(editor);
 733    return success;
 734
 735  }
 736
 737  // focus - sets focus to either the textarea or iframe
 738  function focus(editor) {
 739    setTimeout(function() {
 740      if (sourceMode(editor)) editor.$area.focus();
 741      else editor.$frame[0].contentWindow.focus();
 742      refreshButtons(editor);
 743    }, 0);
 744  }
 745
 746  // getRange - gets the current text range object
 747  function getRange(editor) {
 748    if (ie) return getSelection(editor).createRange();
 749    return getSelection(editor).getRangeAt(0);
 750  }
 751
 752  // getSelection - gets the current text range object
 753  function getSelection(editor) {
 754    if (ie) return editor.doc.selection;
 755    return editor.$frame[0].contentWindow.getSelection();
 756  }
 757
 758  // Returns the hex value for the passed in string.
 759  //   hex("rgb(255, 0, 0)"); // #FF0000
 760  //   hex("#FF0000"); // #FF0000
 761  //   hex("#F00"); // #FF0000
 762  function hex(s) {
 763    var m = /rgba?\((\d+), (\d+), (\d+)/.exec(s),
 764      c = s.split("");
 765    if (m) {
 766      s = ( m[1] << 16 | m[2] << 8 | m[3] ).toString(16);
 767      while (s.length < 6)
 768        s = "0" + s;
 769    }
 770    return "#" + (s.length == 6 ? s : c[1] + c[1] + c[2] + c[2] + c[3] + c[3]);
 771  }
 772
 773  // hidePopups - hides all popups
 774  function hidePopups() {
 775    $.each(popups, function(idx, popup) {
 776      $(popup)
 777        .hide()
 778        .unbind(CLICK)
 779        .removeData(BUTTON);
 780    });
 781  }
 782
 783  // imagesPath - returns the path to the images folder
 784  function imagesPath() {
 785    var cssFile = "jquery.cleditor.css",
 786        href = $("link[href$='" + cssFile +"']").attr("href");
 787    return href.substr(0, href.length - cssFile.length) + "images/";
 788  }
 789
 790  // imageUrl - Returns the css url string for a filemane
 791  function imageUrl(filename) {
 792    return "url(" + imagesPath() + filename + ")";
 793  }
 794
 795  // refresh - creates the iframe and resizes the controls
 796  function refresh(editor) {
 797
 798    var $main = editor.$main,
 799      options = editor.options;
 800
 801    // Remove the old iframe
 802    if (editor.$frame) 
 803      editor.$frame.remove();
 804
 805    // Create a new iframe
 806    var $frame = editor.$frame = $('<iframe frameborder="0" src="javascript:true;">')
 807      .hide()
 808      .appendTo($main);
 809
 810    // Load the iframe document content
 811    var contentWindow = $frame[0].contentWindow,
 812      doc = editor.doc = contentWindow.document,
 813      $doc = $(doc);
 814
 815    doc.open();
 816    doc.write(
 817      options.docType +
 818      '<html>' +
 819      ((options.docCSSFile === '') ? '' : '<head><link rel="stylesheet" type="text/css" href="' + options.docCSSFile + '" /></head>') +
 820      '<body style="' + options.bodyStyle + '"></body></html>'
 821    );
 822    doc.close();
 823
 824    // Work around for bug in IE which causes the editor to lose
 825    // focus when clicking below the end of the document.
 826    if (ie)
 827      $doc.click(function() {focus(editor);});
 828
 829    // Load the content
 830    updateFrame(editor);
 831
 832    // Bind the ie specific iframe event handlers
 833    if (ie) {
 834
 835      // Save the current user selection. This code is needed since IE will
 836      // reset the selection just after the beforedeactivate event and just
 837      // before the beforeactivate event.
 838      $doc.bind("beforedeactivate beforeactivate selectionchange keypress", function(e) {
 839        
 840        // Flag the editor as inactive
 841        if (e.type == "beforedeactivate")
 842          editor.inactive = true;
 843        
 844        // Get rid of the bogus selection and flag the editor as active
 845        else if (e.type == "beforeactivate") {
 846          if (!editor.inactive && editor.range && editor.range.length > 1)
 847            editor.range.shift();
 848          delete editor.inactive;
 849        }
 850
 851        // Save the selection when the editor is active
 852        else if (!editor.inactive) {
 853          if (!editor.range) 
 854            editor.range = [];
 855          editor.range.unshift(getRange(editor));
 856
 857          // We only need the last 2 selections
 858          while (editor.range.length > 2)
 859            editor.range.pop();
 860        }
 861
 862      });
 863
 864      // Restore the text range when the iframe gains focus
 865      $frame.focus(function() {
 866        restoreRange(editor);
 867      });
 868
 869    }
 870
 871    // Update the textarea when the iframe loses focus
 872    ($.browser.mozilla ? $doc : $(contentWindow)).blur(function() {
 873      updateTextArea(editor, true);
 874    });
 875
 876    // Enable the toolbar buttons as the user types or clicks
 877    $doc.click(hidePopups)
 878      .bind("keyup mouseup", function() {
 879        refreshButtons(editor);
 880      });
 881
 882    // Show the textarea for iPhone/iTouch/iPad or
 883    // the iframe when design mode is supported.
 884    if (iOS) editor.$area.show();
 885    else $frame.show();
 886
 887    // Wait for the layout to finish - shortcut for $(document).ready()
 888    $(function() {
 889
 890      var $toolbar = editor.$toolbar,
 891          $group = $toolbar.children("div:last"),
 892          wid = $main.width();
 893
 894      // Resize the toolbar
 895      var hgt = $group.offset().top + $group.outerHeight() - $toolbar.offset().top + 1;
 896      $toolbar.height(hgt);
 897
 898      // Resize the iframe
 899      hgt = (/%/.test("" + options.height) ? $main.height() : parseInt(options.height)) - hgt;
 900      $frame.width(wid).height(hgt);
 901
 902      // Resize the textarea. IE6 textareas have a 1px top
 903      // & bottom margin that cannot be removed using css.
 904      editor.$area.width(wid).height(ie6 ? hgt - 2 : hgt);
 905
 906      // Switch the iframe into design mode if enabled
 907      disable(editor, editor.disabled);
 908
 909      // Enable or disable the toolbar buttons
 910      refreshButtons(editor);
 911
 912    });
 913
 914  }
 915
 916  // refreshButtons - enables or disables buttons based on availability
 917  function refreshButtons(editor) {
 918
 919    // Webkit requires focus before queryCommandEnabled will return anything but false
 920    if (!iOS && $.browser.webkit && !editor.focused) {
 921      editor.$frame[0].contentWindow.focus();
 922      window.focus();
 923      editor.focused = true;
 924    }
 925
 926    // Get the object used for checking queryCommandEnabled
 927    var queryObj = editor.doc;
 928    if (ie) queryObj = getRange(editor);
 929
 930    // Loop through each button
 931    var inSourceMode = sourceMode(editor);
 932    $.each(editor.$toolbar.find("." + BUTTON_CLASS), function(idx, elem) {
 933
 934      var $elem = $(elem),
 935        button = $.cleditor.buttons[$.data(elem, BUTTON_NAME)],
 936        command = button.command,
 937        enabled = true;
 938
 939      // Determine the state
 940      if (editor.disabled)
 941        enabled = false;
 942      else if (button.getEnabled) {
 943        var data = {
 944          editor: editor,
 945          button: elem,
 946          buttonName: button.name,
 947          popup: popups[button.popupName],
 948          popupName: button.popupName,
 949          command: button.command,
 950          useCSS: editor.options.useCSS
 951        };
 952        enabled = button.getEnabled(data);
 953        if (enabled === undefined)
 954          enabled = true;
 955      }
 956      else if (((inSourceMode || iOS) && button.name != "source") ||
 957      (ie && (command == "undo" || command == "redo")))
 958        enabled = false;
 959      else if (command && command != "print") {
 960        if (ie && command == "hilitecolor")
 961          command = "backcolor";
 962        // IE does not support inserthtml, so it's always enabled
 963        if (!ie || command != "inserthtml") {
 964          try {enabled = queryObj.queryCommandEnabled(command);}
 965          catch (err) {enabled = false;}
 966        }
 967      }
 968
 969      // Enable or disable the button
 970      if (enabled) {
 971        $elem.removeClass(DISABLED_CLASS);
 972        $elem.removeAttr(DISABLED);
 973      }
 974      else {
 975        $elem.addClass(DISABLED_CLASS);
 976        $elem.attr(DISABLED, DISABLED);
 977      }
 978
 979    });
 980  }
 981
 982  // restoreRange - restores the current ie selection
 983  function restoreRange(editor) {
 984    if (ie && editor.range)
 985      editor.range[0].select();
 986  }
 987
 988  // select - selects all the text in either the textarea or iframe
 989  function select(editor) {
 990    setTimeout(function() {
 991      if (sourceMode(editor)) editor.$area.select();
 992      else execCommand(editor, "selectall");
 993    }, 0);
 994  }
 995
 996  // selectedHTML - returns the current HTML selection or and empty string
 997  function selectedHTML(editor) {
 998    restoreRange(editor);
 999    var range = getRange(editor);
1000    if (ie)
1001      return range.htmlText;
1002    var layer = $("<layer>")[0];
1003    layer.appendChild(range.cloneContents());
1004    var html = layer.innerHTML;
1005    layer = null;
1006    return html;
1007  }
1008
1009  // selectedText - returns the current text selection or and empty string
1010  function selectedText(editor) {
1011    restoreRange(editor);
1012    if (ie) return getRange(editor).text;
1013    return getSelection(editor).toString();
1014  }
1015
1016  // showMessage - alert replacement
1017  function showMessage(editor, message, button) {
1018    var popup = createPopup("msg", editor.options, MSG_CLASS);
1019    popup.innerHTML = message;
1020    showPopup(editor, popup, button);
1021  }
1022
1023  // showPopup - shows a popup
1024  function showPopup(editor, popup, button) {
1025
1026    var offset, left, top, $popup = $(popup);
1027
1028    // Determine the popup location
1029    if (button) {
1030      var $button = $(button);
1031      offset = $button.offset();
1032      left = --offset.left;
1033      top = offset.top + $button.height();
1034    }
1035    else {
1036      var $toolbar = editor.$toolbar;
1037      offset = $toolbar.offset();
1038      left = Math.floor(($toolbar.width() - $popup.width()) / 2) + offset.left;
1039      top = offset.top + $toolbar.height() - 2;
1040    }
1041
1042    // Position and show the popup
1043    hidePopups();
1044    $popup.css({left: left, top: top})
1045      .show();
1046
1047    // Assign the popup button and click event handler
1048    if (button) {
1049      $.data(popup, BUTTON, button);
1050      $popup.bind(CLICK, {popup: popup}, $.proxy(popupClick, editor));
1051    }
1052
1053    // Focus the first input element if any
1054    setTimeout(function() {
1055      $popup.find(":text,textarea").eq(0).focus().select();
1056    }, 100);
1057
1058  }
1059
1060  // sourceMode - returns true if the textarea is showing
1061  function sourceMode(editor) {
1062    return editor.$area.is(":visible");
1063  }
1064
1065  // updateFrame - updates the iframe with the textarea contents
1066  function updateFrame(editor, checkForChange) {
1067    
1068    var code = editor.$area.val(),
1069      options = editor.options,
1070      updateFrameCallback = options.updateFrame,
1071      $body = $(editor.doc.body);
1072
1073    // Check for textarea change to avoid unnecessary firing
1074    // of potentially heavy updateFrame callbacks.
1075    if (updateFrameCallback) {
1076      var sum = checksum(code);
1077      if (checkForChange && editor.areaChecksum == sum)
1078        return;
1079      editor.areaChecksum = sum;
1080    }
1081
1082    // Convert the textarea source code into iframe html
1083    var html = updateFrameCallback ? updateFrameCallback(code) : code;
1084
1085    // Prevent script injection attacks by html encoding script tags
1086    html = html.replace(/<(?=\/?script)/ig, "&lt;");
1087
1088    // Update the iframe checksum
1089    if (options.updateTextArea)
1090      editor.frameChecksum = checksum(html);
1091
1092    // Update the iframe and trigger the change event
1093    if (html != $body.html()) {
1094      $body.html(html);
1095      $(editor).triggerHandler(CHANGE);
1096    }
1097
1098  }
1099
1100  // updateTextArea - updates the textarea with the iframe contents
1101  function updateTextArea(editor, checkForChange) {
1102
1103    var html = $(editor.doc.body).html(),
1104      options = editor.options,
1105      updateTextAreaCallback = options.updateTextArea,
1106      $area = editor.$area;
1107
1108    // Check for iframe change to avoid unnecessary firing
1109    // of potentially heavy updateTextArea callbacks.
1110    if (updateTextAreaCallback) {
1111      var sum = checksum(html);
1112      if (checkForChange && editor.frameChecksum == sum)
1113        return;
1114      editor.frameChecksum = sum;
1115    }
1116
1117    // Convert the iframe html into textarea source code
1118    var code = updateTextAreaCallback ? updateTextAreaCallback(html) : html;
1119
1120    // Update the textarea checksum
1121    if (options.updateFrame)
1122      editor.areaChecksum = checksum(code);
1123
1124    // Update the textarea and trigger the change event
1125    if (code != $area.val()) {
1126      $area.val(code);
1127      $(editor).triggerHandler(CHANGE);
1128    }
1129
1130  }
1131
1132})(jQuery);