05c0aa52d1
git-svn-id: http://www.cozmixng.org/repos/piro/treestyletab/trunk@6078 599a83e7-65a4-db11-8015-0010dcdd6dc2
95 lines
2.6 KiB
JavaScript
95 lines
2.6 KiB
JavaScript
function TreeStyleTabBrowserTabpanelDNDObserver(aOwner)
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{
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this.mOwner = aOwner;
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}
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TreeStyleTabBrowserTabpanelDNDObserver.prototype = {
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onDragExit : function TSTTabpanelDND_onDragExit(aEvent, aDragSession)
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{
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if (!this.canDrop(aEvent, aDragSession)) return;
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var sv = this.mOwner;
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if (sv.mTabBrowser.hasAttribute(sv.kDROP_POSITION))
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sv.mTabBrowser.setAttribute(sv.kDROP_POSITION, sv.kDROP_POSITION_UNKNOWN);
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},
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onDragOver : function TSTTabpanelDND_onDragOver(aEvent, aFlavour, aDragSession)
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{
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if (!this.canDrop(aEvent, aDragSession)) return;
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var sv = this.mOwner;
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var position = this.getDropPosition(aEvent);
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if (position != 'center' &&
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position != sv.mTabBrowser.getAttribute(sv.kTABBAR_POSITION))
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sv.mTabBrowser.setAttribute(sv.kDROP_POSITION, position);
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},
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onDrop : function TSTTabpanelDND_onDrop(aEvent, aXferData, aDragSession)
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{
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var sv = this.mOwner;
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var position = this.getDropPosition(aEvent);
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if (position != 'center' &&
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position != sv.mTabBrowser.getAttribute(sv.kTABBAR_POSITION)) {
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if (sv.getTreePref('tabbar.fixed.autoCancelOnDrop') &&
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aXferData.data != sv.kTABBAR_MOVE_FORCE) {
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let orient = (position == 'left' || position == 'right') ? 'vertical' : 'horizontal' ;
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sv.setTreePref('tabbar.fixed.'+orient, false);
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}
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sv.currentTabbarPosition = position;
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}
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sv = null;
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aEvent = null;
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aXferData = null;
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aDragSession = null;
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aEvent.stopPropagation();
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},
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getDropPosition : function TSTTabpanelDND_getDropPosition(aEvent)
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{
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var box = this.mOwner.mTabBrowser.boxObject;
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var W = box.width;
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var H = box.height;
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var X = box.screenX;
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var Y = box.screenY;
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var x = aEvent.screenX - X;
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var y = aEvent.screenY - Y;
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if (x > (W * 0.33) &&
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x < (W * 0.66) &&
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y > (H * 0.33) &&
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y < (H * 0.66))
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return 'center';
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var isTL = x <= W - (y * W / H);
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var isBL = x <= y * W / H;
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return (isTL && isBL) ? 'left' :
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(isTL && !isBL) ? 'top' :
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(!isTL && isBL) ? 'bottom' :
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'right' ;
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},
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canDrop : function TSTTabpanelDND_canDrop(aEvent, aDragSession)
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{
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return (
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aDragSession &&
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aDragSession.isDataFlavorSupported(this.mOwner.kDRAG_TYPE_TABBAR) &&
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aDragSession.sourceNode
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) ? true : false ;
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},
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getSupportedFlavours : function TSTTabpanelDND_getSupportedFlavours()
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{
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var flavourSet = new FlavourSet();
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flavourSet.appendFlavour(this.mOwner.kDRAG_TYPE_TABBAR);
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return flavourSet;
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},
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destroy : function TSTTabpanelDND_destroy()
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{
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delete this.mOwner;
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}
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};
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