1 | /*
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2 | Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved.
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3 | For licensing, see LICENSE.html or http://ckeditor.com/license
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4 | */
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5 |
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6 | /**
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7 | * @fileOverview The "elementspath" plugin. It shows all elements in the DOM
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8 | * parent tree relative to the current selection in the editing area.
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9 | */
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10 |
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11 | (function()
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12 | {
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13 | var commands =
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14 | {
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15 | toolbarFocus :
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16 | {
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17 | exec : function( editor )
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18 | {
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19 | var idBase = editor._.elementsPath.idBase;
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20 | var element = CKEDITOR.document.getById( idBase + '0' );
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21 |
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22 | if ( element )
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23 | element.focus();
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24 | }
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25 | }
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26 | };
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27 |
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28 | var emptyHtml = '<span class="cke_empty"> </span>';
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29 |
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30 | CKEDITOR.plugins.add( 'elementspath',
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31 | {
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32 | requires : [ 'selection' ],
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33 |
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34 | init : function( editor )
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35 | {
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36 | var spaceId = 'cke_path_' + editor.name;
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37 | var spaceElement;
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38 | var getSpaceElement = function()
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39 | {
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40 | if ( !spaceElement )
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41 | spaceElement = CKEDITOR.document.getById( spaceId );
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42 | return spaceElement;
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43 | };
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44 |
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45 | var idBase = 'cke_elementspath_' + CKEDITOR.tools.getNextNumber() + '_';
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46 |
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47 | editor._.elementsPath = { idBase : idBase, filters : [] };
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48 |
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49 | editor.on( 'themeSpace', function( event )
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50 | {
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51 | if ( event.data.space == 'bottom' )
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52 | {
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53 | event.data.html +=
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54 | '<span id="' + spaceId + '_label" class="cke_voice_label">' + editor.lang.elementsPath.eleLabel + '</span>' +
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55 | '<div id="' + spaceId + '" class="cke_path" role="group" aria-labelledby="' + spaceId + '_label">' + emptyHtml + '</div>';
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56 | }
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57 | });
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58 |
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59 | editor.on( 'selectionChange', function( ev )
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60 | {
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61 | var env = CKEDITOR.env,
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62 | selection = ev.data.selection,
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63 | element = selection.getStartElement(),
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64 | html = [],
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65 | editor = ev.editor,
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66 | elementsList = editor._.elementsPath.list = [],
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67 | filters = editor._.elementsPath.filters;
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68 |
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69 | while ( element )
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70 | {
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71 | var ignore = 0;
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72 | for ( var i = 0; i < filters.length; i++ )
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73 | {
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74 | if ( filters[ i ]( element ) === false )
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75 | {
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76 | ignore = 1;
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77 | break;
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78 | }
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79 | }
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80 |
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81 | if ( !ignore )
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82 | {
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83 | var index = elementsList.push( element ) - 1;
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84 | var name;
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85 | if ( element.getAttribute( '_cke_real_element_type' ) )
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86 | name = element.getAttribute( '_cke_real_element_type' );
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87 | else
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88 | name = element.getName();
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89 |
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90 | // Use this variable to add conditional stuff to the
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91 | // HTML (because we are doing it in reverse order... unshift).
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92 | var extra = '';
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93 |
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94 | // Some browsers don't cancel key events in the keydown but in the
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95 | // keypress.
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96 | // TODO: Check if really needed for Gecko+Mac.
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97 | if ( env.opera || ( env.gecko && env.mac ) )
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98 | extra += ' onkeypress="return false;"';
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99 |
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100 | // With Firefox, we need to force the button to redraw, otherwise it
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101 | // will remain in the focus state.
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102 | if ( env.gecko )
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103 | extra += ' onblur="this.style.cssText = this.style.cssText;"';
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104 |
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105 | var label = editor.lang.elementsPath.eleTitle.replace( /%1/, name );
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106 | html.unshift(
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107 | '<a' +
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108 | ' id="', idBase, index, '"' +
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109 | ' href="javascript:void(\'', name, '\')"' +
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110 | ' tabindex="-1"' +
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111 | ' title="', label, '"' +
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112 | ( ( CKEDITOR.env.gecko && CKEDITOR.env.version < 10900 ) ?
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113 | ' onfocus="event.preventBubble();"' : '' ) +
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114 | ' hidefocus="true" ' +
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115 | ' onkeydown="return CKEDITOR._.elementsPath.keydown(\'', editor.name, '\',', index, ', event);"' +
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116 | extra ,
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117 | ' onclick="return CKEDITOR._.elementsPath.click(\'', editor.name, '\',', index, ');"',
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118 | ' role="button" aria-labelledby="' + idBase + index + '_label">',
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119 | name,
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120 | '<span id="', idBase, index, '_label" class="cke_label">' + label + '</span>',
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121 | '</a>' );
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122 |
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123 | }
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124 |
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125 | if ( name == 'body' )
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126 | break;
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127 |
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128 | element = element.getParent();
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129 | }
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130 |
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131 | getSpaceElement().setHtml( html.join('') + emptyHtml );
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132 | });
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133 |
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134 | editor.on( 'contentDomUnload', function()
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135 | {
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136 | getSpaceElement().setHtml( emptyHtml );
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137 | });
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138 |
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139 | editor.addCommand( 'elementsPathFocus', commands.toolbarFocus );
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140 | }
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141 | });
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142 | })();
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143 |
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144 | /**
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145 | * Handles the click on an element in the element path.
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146 | * @private
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147 | */
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148 | CKEDITOR._.elementsPath =
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149 | {
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150 | click : function( instanceName, elementIndex )
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151 | {
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152 | var editor = CKEDITOR.instances[ instanceName ];
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153 | editor.focus();
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154 |
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155 | var element = editor._.elementsPath.list[ elementIndex ];
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156 | editor.getSelection().selectElement( element );
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157 |
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158 | return false;
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159 | },
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160 |
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161 | keydown : function( instanceName, elementIndex, ev )
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162 | {
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163 | var instance = CKEDITOR.ui.button._.instances[ elementIndex ];
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164 | var editor = CKEDITOR.instances[ instanceName ];
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165 | var idBase = editor._.elementsPath.idBase;
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166 |
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167 | var element;
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168 |
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169 | ev = new CKEDITOR.dom.event( ev );
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170 |
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171 | switch ( ev.getKeystroke() )
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172 | {
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173 | case 37 : // LEFT-ARROW
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174 | case 9 : // TAB
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175 | element = CKEDITOR.document.getById( idBase + ( elementIndex + 1 ) );
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176 | if ( !element )
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177 | element = CKEDITOR.document.getById( idBase + '0' );
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178 | element.focus();
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179 | return false;
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180 |
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181 | case 39 : // RIGHT-ARROW
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182 | case CKEDITOR.SHIFT + 9 : // SHIFT + TAB
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183 | element = CKEDITOR.document.getById( idBase + ( elementIndex - 1 ) );
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184 | if ( !element )
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185 | element = CKEDITOR.document.getById( idBase + ( editor._.elementsPath.list.length - 1 ) );
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186 | element.focus();
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187 | return false;
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188 |
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189 | case 27 : // ESC
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190 | editor.focus();
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191 | return false;
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192 |
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193 | case 13 : // ENTER // Opera
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194 | case 32 : // SPACE
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195 | this.click( instanceName, elementIndex );
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196 | return false;
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197 |
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198 | //default :
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199 | // alert( ev.getKeystroke() );
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200 | }
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201 | return true;
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202 | }
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203 | };
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