/*
 This file is part of DotClear. 
 Copyright (c) 2005 Nicolas Martin & Olivier Meunier and contributors. All 
 rights reserved. 
 
 DotClear is free software; you can redistribute it and/or modify 
 it under the terms of the GNU General Public License as published by 
 the Free Software Foundation; either version 2 of the License, or 
 (at your option) any later version. 
 *  
 * DotClear is distributed in the hope that it will be useful, 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
 * GNU General Public License for more details. 
 *  
 * You should have received a copy of the GNU General Public License 
 * along with DotClear; if not, write to the Free Software 
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
 * 
 * ***** END LICENSE BLOCK ***** 
*/ 
 
function jsToolBar(textarea) { 
        if (!document.createElement) { return; } 
         
        if (!textarea) { return; } 
         
        if ((typeof(document["selection"]) == "undefined") 
        && (typeof(textarea["setSelectionRange"]) == "undefined")) { 
                return; 
        } 
         
        this.textarea = textarea; 
         
        this.editor = document.createElement('div'); 
        this.editor.className = 'jstEditor'; 
         
        this.textarea.parentNode.insertBefore(this.editor,this.textarea); 
        this.editor.appendChild(this.textarea); 
         
        this.toolbar = document.createElement("div"); 
        this.toolbar.className = 'jstElements'; 
        this.editor.parentNode.insertBefore(this.toolbar,this.editor); 
         
        // Dragable resizing (only for gecko) 
        if (this.editor.addEventListener) 
        { 
                this.handle = document.createElement('div'); 
                this.handle.className = 'jstHandle'; 
                var dragStart = this.resizeDragStart; 
                var This = this; 
                this.handle.addEventListener('mousedown',function(event) { dragStart.call(This,event); },false); 
                // fix memory leak in Firefox (bug #241518) 
                window.addEventListener('unload',function() {  
                                var del = This.handle.parentNode.removeChild(This.handle); 
                                delete(This.handle); 
                },false); 
                 
                this.editor.parentNode.insertBefore(this.handle,this.editor.nextSibling); 
        } 
         
        this.context = null; 
        this.toolNodes = {}; // lorsque la toolbar est dessinée , cet objet est garni  
                                        // de raccourcis vers les éléments DOM correspondants aux outils. 
} 
 
 
/** Resizer 
-------------------------------------------------------- */ 
jsToolBar.prototype.resizeSetStartH = function() { 
        this.dragStartH = this.textarea.offsetHeight + 0; 
}; 
jsToolBar.prototype.resizeDragStart = function(event) { 
        var This = this; 
        this.dragStartY = event.clientY; 
        this.resizeSetStartH(); 
        document.addEventListener('mousemove', this.dragMoveHdlr=function(event){This.resizeDragMove(event);}, false); 
        document.addEventListener('mouseup', this.dragStopHdlr=function(event){This.resizeDragStop(event);}, false); 
}; 
 
jsToolBar.prototype.resizeDragMove = function(event) { 
        this.textarea.style.height = (this.dragStartH+event.clientY-this.dragStartY)+'px'; 
}; 
 
jsToolBar.prototype.resizeDragStop = function(event) { 
        document.removeEventListener('mousemove', this.dragMoveHdlr, false); 
        document.removeEventListener('mouseup', this.dragStopHdlr, false); 
};