スプリッタとの境界線上ではタブバーのドラッグを無視するように

git-svn-id: http://www.cozmixng.org/repos/piro/treestyletab/trunk@5087 599a83e7-65a4-db11-8015-0010dcdd6dc2

content/treestyletab/treestyletabbrowser_tabbarDNDObserver.js

@@ -39,13 +39,43 @@ TreeStyleTabBrowserTabbarDNDObserver.prototype = {
 
 		var tab = sv.getTabFromEvent(aEvent);
 		var tabbar = sv.getTabbarFromEvent(aEvent);
-		return (
+		var canDrag = (
 				(tab ? aEvent.shiftKey : tabbar ) &&
 				(
 					aEvent.shiftKey ||
 					sv.mTabBrowser.getAttribute(sv.kFIXED) != 'true'
 				)
 			);
+
+		if (canDrag && !aEvent.shiftKey) {
+			let insensitiveArea = sv.getTreePref('tabbar.fixed.insensitiveArea');
+			let box = tabbar.boxObject;
+			switch (sv.mTabBrowser.getAttribute(sv.kTABBAR_POSITION))
+			{
+				case 'right':
+					if (aEvent.screenX < box.screenX + insensitiveArea)
+						canDrag = false;
+					break;
+
+				case 'left':
+					if (aEvent.screenX > box.screenX + box.width - insensitiveArea)
+						canDrag = false;
+					break;
+
+				default:
+				case 'top':
+					if (aEvent.screenY > box.screenY + box.height - insensitiveArea)
+						canDrag = false;
+					break;
+
+				case 'bottom':
+					if (aEvent.screenY < box.screenY + insensitiveArea)
+						canDrag = false;
+					break;
+			}
+		}
+
+		return canDrag;
 	},
  
 	onDragEnter : function(aEvent, aDragSession) 

defaults/preferences/treestyletab.js

@@ -38,6 +38,7 @@ pref("extensions.treestyletab.tabbar.autoShow.feedback.delay", 3000);
 pref("extensions.treestyletab.tabbar.autoShow.keepShownOnMouseover", true);
 pref("extensions.treestyletab.tabbar.togglerSize", 5);
 pref("extensions.treestyletab.tabbar.fixed.autoCancelOnDrop", true);
+pref("extensions.treestyletab.tabbar.fixed.insensitiveArea", 7);
 pref("extensions.treestyletab.tabbar.fixed.horizontal", true);
 pref("extensions.treestyletab.tabbar.fixed.vertical", false);
 pref("extensions.treestyletab.tabbar.syncRelatedPrefsForDynamicPosition", true);