/* This file is part of Ext JS 3.4 Copyright (c) 2011-2013 Sencha Inc Contact: http://www.sencha.com/contact GNU General Public License Usage This file may be used under the terms of the GNU General Public License version 3.0 as published by the Free Software Foundation and appearing in the file LICENSE included in the packaging of this file. Please review the following information to ensure the GNU General Public License version 3.0 requirements will be met: http://www.gnu.org/copyleft/gpl.html. If you are unsure which license is appropriate for your use, please contact the sales department at http://www.sencha.com/contact. Build date: 2013-04-03 15:07:25 */ Ext.ux.Portal = Ext.extend(Ext.Panel, { layout : 'column', autoScroll : true, cls : 'x-portal', defaultType : 'portalcolumn', initComponent : function(){ Ext.ux.Portal.superclass.initComponent.call(this); this.addEvents({ validatedrop:true, beforedragover:true, dragover:true, beforedrop:true, drop:true }); }, initEvents : function(){ Ext.ux.Portal.superclass.initEvents.call(this); this.dd = new Ext.ux.Portal.DropZone(this, this.dropConfig); }, beforeDestroy : function() { if(this.dd){ this.dd.unreg(); } Ext.ux.Portal.superclass.beforeDestroy.call(this); } }); Ext.reg('portal', Ext.ux.Portal); Ext.ux.Portal.DropZone = Ext.extend(Ext.dd.DropTarget, { constructor : function(portal, cfg){ this.portal = portal; Ext.dd.ScrollManager.register(portal.body); Ext.ux.Portal.DropZone.superclass.constructor.call(this, portal.bwrap.dom, cfg); portal.body.ddScrollConfig = this.ddScrollConfig; }, ddScrollConfig : { vthresh: 50, hthresh: -1, animate: true, increment: 200 }, createEvent : function(dd, e, data, col, c, pos){ return { portal: this.portal, panel: data.panel, columnIndex: col, column: c, position: pos, data: data, source: dd, rawEvent: e, status: this.dropAllowed }; }, notifyOver : function(dd, e, data){ var xy = e.getXY(), portal = this.portal, px = dd.proxy; // case column widths if(!this.grid){ this.grid = this.getGrid(); } // handle case scroll where scrollbars appear during drag var cw = portal.body.dom.clientWidth; if(!this.lastCW){ this.lastCW = cw; }else if(this.lastCW != cw){ this.lastCW = cw; portal.doLayout(); this.grid = this.getGrid(); } // determine column var col = 0, xs = this.grid.columnX, cmatch = false; for(var len = xs.length; col < len; col++){ if(xy[0] < (xs[col].x + xs[col].w)){ cmatch = true; break; } } // no match, fix last index if(!cmatch){ col--; } // find insert position var p, match = false, pos = 0, c = portal.items.itemAt(col), items = c.items.items, overSelf = false; for(var len = items.length; pos < len; pos++){ p = items[pos]; var h = p.el.getHeight(); if(h === 0){ overSelf = true; } else if((p.el.getY()+(h/2)) > xy[1]){ match = true; break; } } pos = (match && p ? pos : c.items.getCount()) + (overSelf ? -1 : 0); var overEvent = this.createEvent(dd, e, data, col, c, pos); if(portal.fireEvent('validatedrop', overEvent) !== false && portal.fireEvent('beforedragover', overEvent) !== false){ // make sure proxy width is fluid px.getProxy().setWidth('auto'); if(p){ px.moveProxy(p.el.dom.parentNode, match ? p.el.dom : null); }else{ px.moveProxy(c.el.dom, null); } this.lastPos = {c: c, col: col, p: overSelf || (match && p) ? pos : false}; this.scrollPos = portal.body.getScroll(); portal.fireEvent('dragover', overEvent); return overEvent.status; }else{ return overEvent.status; } }, notifyOut : function(){ delete this.grid; }, notifyDrop : function(dd, e, data){ delete this.grid; if(!this.lastPos){ return; } var c = this.lastPos.c, col = this.lastPos.col, pos = this.lastPos.p, panel = dd.panel, dropEvent = this.createEvent(dd, e, data, col, c, pos !== false ? pos : c.items.getCount()); if(this.portal.fireEvent('validatedrop', dropEvent) !== false && this.portal.fireEvent('beforedrop', dropEvent) !== false){ dd.proxy.getProxy().remove(); panel.el.dom.parentNode.removeChild(dd.panel.el.dom); if(pos !== false){ c.insert(pos, panel); }else{ c.add(panel); } c.doLayout(); this.portal.fireEvent('drop', dropEvent); // scroll position is lost on drop, fix it var st = this.scrollPos.top; if(st){ var d = this.portal.body.dom; setTimeout(function(){ d.scrollTop = st; }, 10); } } delete this.lastPos; }, // internal cache of body and column coords getGrid : function(){ var box = this.portal.bwrap.getBox(); box.columnX = []; this.portal.items.each(function(c){ box.columnX.push({x: c.el.getX(), w: c.el.getWidth()}); }); return box; }, // unregister the dropzone from ScrollManager unreg: function() { Ext.dd.ScrollManager.unregister(this.portal.body); Ext.ux.Portal.DropZone.superclass.unreg.call(this); } });