- add support for Zotero as a separate tab (currently only via loading chrome://zotero/content/tab.xul)

- tweak twisty appearance on OS X (highlight-on-click is gone, but this seems preferable to the previous behavior)
- simplify chrome.manifest for standalone

chrome/content/zotero-platform/mac/overlay.css

@@ -396,4 +396,49 @@
 #zotero-items-tree treechildren::-moz-tree-cell,
 #zotero-items-tree treechildren::-moz-tree-column {
   border-right: 1px solid #d7dad7;
+}
+
+treechildren::-moz-tree-twisty {
+	-moz-appearance: none;
+	width: 11px;
+	height: 11px;
+	list-style-image: url("chrome://zotero/skin/mac/twisty.png");
+	-moz-padding-start: 5px;
+	-moz-padding-end: 6px;
+}
+
+treechildren::-moz-tree-twisty(open) {
+	-moz-appearance: none;
+	width: 11px;
+	height: 11px;
+	list-style-image: url("chrome://zotero/skin/mac/twisty-open.png");
+	-moz-padding-start: 4px;
+	-moz-padding-end: 7px;
+}
+
+/* How to get active twisty?
+treechildren::-moz-tree-twisty(active) {
+	-moz-appearance: none;
+	list-style-image: url("chrome://zotero/skin/mac/twisty-active.png") !important;
+}
+
+treechilren::-moz-tree-twisty(active) {
+	-moz-appearance: none;
+	list-style-image: url("chrome://zotero/skin/mac/twisty-active-open.png");
+}
+*/
+
+:root[active] treechildren::-moz-tree-twisty(selected) {
+	-moz-appearance: none;
+	list-style-image: url("chrome://zotero/skin/mac/twisty-selected.png");
+}
+
+:root[active] treechildren::-moz-tree-twisty(selected, open) {
+	-moz-appearance: none;
+	list-style-image: url("chrome://zotero/skin/mac/twisty-selected-open.png");
+}
+
+treechildren::-moz-tree-image {
+	height: 16px;
+	padding-bottom: 1px;
 }

chrome/content/zotero/browser.js

@@ -104,7 +104,12 @@ var Zotero_Browser = new function() {
 	 * Initialize some variables and prepare event listeners for when chrome is done loading
 	 */
 	function init() {
-		if (!Zotero || !Zotero.initialized || Zotero.isStandalone) {
+		try {
+			var gb = gBrowser;
+		} catch(e) {
+			return;
+		}
+		if (!Zotero || !Zotero.initialized || !gb) {
 			return;
 		}
 		

chrome/content/zotero/overlay.js

@@ -90,6 +90,7 @@ var ZoteroPane = new function()
 	
 	var self = this;
 	var _loaded = false;
+	var _isStandaloneOrTab = false;
 	var titlebarcolorState, toolbarCollapseState, titleState;
 	
 	// Also needs to be changed in collectionTreeView.js
@@ -100,9 +101,11 @@ var ZoteroPane = new function()
 	 */
 	function onLoad()
 	{
+		_isStandaloneOrTab = Zotero.isStandalone || document.getElementById('zotero-tab');
+		
 		if (!Zotero) return;
 		if (!Zotero.initialized) {
-			if(Zotero.isStandalone) {
+			if(_isStandaloneOrTab) {
 				_loaded = true;
 				this.toggleDisplay();
 			}
@@ -229,7 +232,7 @@ var ZoteroPane = new function()
 			document.getElementById('zotero-tb-actions-showDuplicates').hidden = false;
 		}
 		
-		if(Zotero.isStandalone) {
+		if(_isStandaloneOrTab) {
 			this.toggleDisplay(true);
 			this.fullScreen(true);
 		}
@@ -350,7 +353,7 @@ var ZoteroPane = new function()
 			var isCollapsed = true;
 		}
 		
-		if (isHidden || isCollapsed || Zotero.isStandalone) {
+		if (isHidden || isCollapsed || _isStandaloneOrTab) {
 			var makeVisible = true;
 		}
 		
@@ -510,7 +513,7 @@ var ZoteroPane = new function()
 	 */
 	function _setFullWindowMode(set) {
 		// hide or show navigation toolbars
-		if(Zotero.isStandalone) return;
+		if(_isStandaloneOrTab) return;
 		
 		var toolbox = getNavToolbox();
 		if(set) {

chrome/content/zotero/overlay.xul

@@ -478,11 +478,11 @@
 				Zotero.getString('errorReport.reportErrors'));
 		}
 		
+		var fx36Icon = document.getElementById('zotero-status-bar-icon');
+		var addonBar = document.getElementById('addon-bar');
+		
 		// Check whether standalone is running, and return if so
-		var appInfo = Components.classes["@mozilla.org/xre/app-info;1"]
-						.getService(Components.interfaces.nsIXULAppInfo);
-		var isStandalone = appInfo.ID === "zotero@chnm.gmu.edu";
-		if(isStandalone) return;
+		if(!addonBar && !fx36Icon) return;
 		
 		// THE FOLLOWING CODE IS NOT APPLIED IN STANDALONE
 		// (It relates almost entirely to the Zotero icon)
@@ -491,10 +491,12 @@
 							.getService(Components.interfaces.nsIPrefService)
 							.getBranch('extensions.zotero.').getIntPref('statusBarIcon');
 		
+		var appInfo = Components.classes["@mozilla.org/xre/app-info;1"]
+						.getService(Components.interfaces.nsIXULAppInfo);
 		var isFx36 = appInfo.platformVersion.indexOf('1.9') === 0;
 		// Status bar in Fx3.6
 		if (isFx36) {
-			var icon = document.getElementById('zotero-status-bar-icon');
+			var icon = fx36Icon;
 		}
 		// In >=Fx4, add to add-on bar
 		else {
@@ -502,7 +504,6 @@
 			icon.id = 'zotero-addon-bar-icon';
 			icon.setAttribute('oncommand', 'ZoteroPane.toggleDisplay()');
 			icon.setAttribute('hidden', true);
-			var addonBar = document.getElementById('addon-bar');
 			addonBar.appendChild(icon);
 			if (addonBar.collapsed) {
 				// If no Zotero or icon isn't set to hidden, show add-on bar

chrome/content/zotero/standalone.xul

@@ -1,8 +1,11 @@
 <?xml version="1.0"?>
 
 <?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
+<?xml-stylesheet href="chrome://zotero/skin/zotero.css" type="text/css"?>
 <?xml-stylesheet href="chrome://zotero/skin/standalone.css" type="text/css"?>
 <?xul-overlay href="chrome://global/content/editMenuOverlay.xul"?>
+<?xul-overlay href="chrome://zotero/content/overlay.xul"?>
+<?xul-overlay href="chrome://zotero/content/itemPane.xul"?>
 
 <!DOCTYPE window [
 <!ENTITY % globalDTD SYSTEM "chrome://global/locale/global.dtd">

chrome/content/zotero/tab.xul

@@ -0,0 +1,64 @@
+<?xml version="1.0"?>
+
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
+<?xml-stylesheet href="chrome://zotero/skin/zotero.css" type="text/css"?>
+<?xml-stylesheet href="chrome://zotero/skin/standalone.css" type="text/css"?>
+<?xul-overlay href="chrome://zotero/content/overlay.xul"?>
+<?xul-overlay href="chrome://zotero/content/itemPane.xul"?>
+
+<!DOCTYPE window [
+<!ENTITY % globalDTD SYSTEM "chrome://global/locale/global.dtd">
+%globalDTD;
+<!ENTITY % charsetDTD SYSTEM "chrome://global/locale/charsetOverlay.dtd" >
+%charsetDTD;
+<!ENTITY % textcontextDTD SYSTEM "chrome://global/locale/textcontext.dtd" >
+%textcontextDTD;
+<!ENTITY % standaloneDTD SYSTEM "chrome://zotero/locale/standalone.dtd" >
+%standaloneDTD;
+<!ENTITY % brandDTD SYSTEM "chrome://branding/locale/brand.dtd" >
+%brandDTD;
+]>
+
+<window id="zotero-tab" title="Zotero"
+				xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+				flex="1"> 
+	<popup id="contentAreaContextMenu">
+		<menuitem id="context-undo"
+				label="&undoCmd.label;"
+				accesskey="&undoCmd.accesskey;"
+				command="cmd_undo"/>
+		<menuseparator id="context-sep-undo"/>
+		<menuitem id="context-cut"
+				label="&cutCmd.label;"
+				accesskey="&cutCmd.accesskey;"
+				command="cmd_cut"/>
+		<menuitem id="context-copy"
+				label="&copyCmd.label;"
+				accesskey="&copyCmd.accesskey;"
+				command="cmd_copy"/>
+		<menuitem id="context-paste"
+				label="&pasteCmd.label;"
+				accesskey="&pasteCmd.accesskey;"
+				command="cmd_paste"/>
+		<menuitem id="context-delete"
+				label="&deleteCmd.label;"
+				accesskey="&deleteCmd.accesskey;"
+				command="cmd_delete"/>
+		<menuseparator id="context-sep-paste"/>
+		<menuitem id="context-selectall"
+				label="&selectAllCmd.label;"
+				accesskey="&selectAllCmd.accesskey;"
+				command="cmd_selectAll"/>
+	</popup>
+	<hbox flex="1" id="browser">
+		<vbox id="appcontent" flex="1">
+			<tabbrowser id="content" disablehistory="true"
+									flex="1" contenttooltip="aHTMLTooltip"
+									contentcontextmenu="contentAreaContextMenu"
+									onnewtab="BrowserOpenTab();"
+									autocompletepopup="PopupAutoComplete"
+									onclick="return contentAreaClick(event, false);"/>
+		</vbox>
+	</hbox>
+	<keyset id="mainKeyset"/>
+</window>