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<h2>TinyMCE_UndoRedo.class.js</h2>
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<h4>Summary</h4>
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No overview generated for 'TinyMCE_UndoRedo.class.js'<BR/><BR/>
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<b>Class Summary</b>
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<td width="15%"><b><a href="TinyMCE_UndoRedo.html">TinyMCE_UndoRedo</a></b></td>
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<pre class="sourceview"><span class="comment">/**
* $RCSfile: overview-summary-TinyMCE_UndoRedo.class.js.html,v $
* $Revision: 1.13 $
* $Date: 2006/02/13 15:28:43 $
*
* <span class="attrib">@author</span> Moxiecode
* <span class="attrib">@copyright</span> Copyright ?2004-2006, Moxiecode Systems AB, All rights reserved.
*/</span>
<span class="comment">/**
* Constructs a undo redo instance, this instance handles the custom undo/redo handeling in TinyMCE.
*
* <span class="attrib">@param</span> {TinyMCE_Control} inst TinyMCE editor control instance.
* <span class="attrib">@constructor</span>
*/</span>
<span class="reserved">function</span> TinyMCE_UndoRedo(inst) {
<span class="reserved">this</span>.instance = inst;
<span class="reserved">this</span>.undoLevels = new Array();
<span class="reserved">this</span>.undoIndex = 0;
<span class="reserved">this</span>.typingUndoIndex = -1;
<span class="reserved">this</span>.undoRedo = true;
};
TinyMCE_UndoRedo.<span class="reserved">prototype</span> = {
<span class="comment">/**
* Adds a new undo level, this will take a snapshot of the current instance HTML or use the specified level.
*
* <span class="attrib">@param</span> {TinyMCE_UndoRedoLevel} l Optional undo/redo level to add.
* <span class="attrib">@return</span> true/false on success or failure.
* <span class="attrib">@type</span> boolean
*/</span>
add : <span class="reserved">function</span>(l) {
var b;
<span class="reserved">if</span> (l) {
<span class="reserved">this</span>.undoLevels[<span class="reserved">this</span>.undoLevels.length] = l;
<span class="reserved">return</span> true;
}
var inst = <span class="reserved">this</span>.instance;
<span class="reserved">if</span> (<span class="reserved">this</span>.typingUndoIndex != -1) {
<span class="reserved">this</span>.undoIndex = <span class="reserved">this</span>.typingUndoIndex;
<span class="comment">// tinyMCE.debug("Override: " + this.undoIndex);</span>
}
var newHTML = tinyMCE.trim(inst.getBody().innerHTML);
<span class="reserved">if</span> (<span class="reserved">this</span>.undoLevels[<span class="reserved">this</span>.undoIndex] && newHTML != <span class="reserved">this</span>.undoLevels[<span class="reserved">this</span>.undoIndex].content) {
<span class="comment">//tinyMCE.debug(newHTML, this.undoLevels[this.undoIndex]);</span>
tinyMCE.dispatchCallback(inst, <span class="literal">'onchange_callback'</span>, <span class="literal">'onChange'</span>, inst);
<span class="comment">// Time to compress</span>
var customUndoLevels = tinyMCE.settings[<span class="literal">'custom_undo_redo_levels'</span>];
<span class="reserved">if</span> (customUndoLevels != -1 && <span class="reserved">this</span>.undoLevels.length > customUndoLevels) {
<span class="reserved">for</span> (var i=0; i<<span class="reserved">this</span>.undoLevels.length-1; i++) {
<span class="comment">//tinyMCE.debug(this.undoLevels[i] + "=" + this.undoLevels[i+1]);</span>
<span class="reserved">this</span>.undoLevels[i] = <span class="reserved">this</span>.undoLevels[i+1];
}
<span class="reserved">this</span>.undoLevels.length--;
<span class="reserved">this</span>.undoIndex--;
}
b = inst.undoBookmark;
<span class="reserved">if</span> (!b)
b = inst.selection.getBookmark();
<span class="reserved">this</span>.undoIndex++;
<span class="reserved">this</span>.undoLevels[<span class="reserved">this</span>.undoIndex] = {
content : newHTML,
bookmark : b
};
<span class="reserved">this</span>.undoLevels.length = <span class="reserved">this</span>.undoIndex + 1;
<span class="comment">//tinyMCE.debug("level added" + this.undoIndex);</span>
<span class="reserved">return</span> true;
<span class="comment">// tinyMCE.debug(this.undoIndex + "," + (this.undoLevels.length-1));</span>
}
<span class="reserved">return</span> false;
},
<span class="comment">/**
* Performes a undo action, this will restore the HTML contents of the editor to a former state.
*/</span>
undo : <span class="reserved">function</span>() {
var inst = <span class="reserved">this</span>.instance;
<span class="comment">// Do undo</span>
<span class="reserved">if</span> (<span class="reserved">this</span>.undoIndex > 0) {
<span class="reserved">this</span>.undoIndex--;
tinyMCE.setInnerHTML(inst.getBody(), <span class="reserved">this</span>.undoLevels[<span class="reserved">this</span>.undoIndex].content);
inst.repaint();
<span class="reserved">if</span> (inst.settings.custom_undo_redo_restore_selection)
inst.selection.moveToBookmark(<span class="reserved">this</span>.undoLevels[<span class="reserved">this</span>.undoIndex].bookmark);
}
<span class="comment">// tinyMCE.debug("Undo - undo levels:" + this.undoLevels.length + ", undo index: " + this.undoIndex);</span>
},
<span class="comment">/**
* Performes a undo action, this will restore the HTML contents of the editor to a former undoed state.
*/</span>
redo : <span class="reserved">function</span>() {
var inst = <span class="reserved">this</span>.instance;
tinyMCE.execCommand(<span class="literal">"mceEndTyping"</span>);
<span class="reserved">if</span> (<span class="reserved">this</span>.undoIndex < (<span class="reserved">this</span>.undoLevels.length-1)) {
<span class="reserved">this</span>.undoIndex++;
tinyMCE.setInnerHTML(inst.getBody(), <span class="reserved">this</span>.undoLevels[<span class="reserved">this</span>.undoIndex].content);
inst.repaint();
<span class="comment">// if (this.undoIndex > 0)</span>
<span class="comment">// inst.selection.moveToBookmark(this.undoLevels[this.undoIndex-1].bookmark);</span>
<span class="reserved">if</span> (inst.settings.custom_undo_redo_restore_selection)
inst.selection.moveToBookmark(<span class="reserved">this</span>.undoLevels[<span class="reserved">this</span>.undoIndex].bookmark);
<span class="comment">// tinyMCE.debug("Redo - undo levels:" + this.undoLevels.length + ", undo index: " + this.undoIndex);</span>
}
tinyMCE.triggerNodeChange();
}
};
</pre>
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<div class="jsdoc_ctime">Documentation generated by <a href="http://jsdoc.sourceforge.net/" target="_parent">JSDoc</a> on Mon Feb 13 16:28:04 2006</div>
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