tabs menu updates

- CMD-F will focus the input field
- ArrowLeft/Right keypresses are ignored
- Reset focus index on the focus of the input field

chrome/content/zotero/tabs.js

@@ -1005,6 +1005,10 @@ var Zotero_Tabs = new function () {
 		this.refreshTabsMenuList();
 	};
 
+	this.resetFocusIndex = (_) => {
+		this._tabsMenuFocusedIndex = 0;
+	};
+
 
 	/**
 	 * Focus on the element in the tabs menu with [tabindex=tabIndex] if given
@@ -1046,6 +1050,7 @@ var Zotero_Tabs = new function () {
 	 * - ArrowUp from the filter field focuses the last tab
 	 * - Home/PageUp focuses the filter field
 	 * - End/PageDown focues the last tab title
+	 * - CMD-f will focus the input field
 	 */
 	this.handleTabsMenuKeyPress = function (event) {
 		let tabindex = this._tabsMenuFocusedIndex;
@@ -1114,5 +1119,14 @@ var Zotero_Tabs = new function () {
 			}
 			event.target.click();
 		}
+		else if (["ArrowLeft", "ArrowRight"].includes(event.key)) {
+			event.preventDefault();
+			event.stopPropagation();
+		}
+		else if (event.key == "f" && (Zotero.isMac ? event.metaKey : event.ctrlKey)) {
+			focusTabsMenuEntry(0);
+			event.preventDefault();
+			event.stopPropagation();
+		}
 	};
 };

chrome/content/zotero/zoteroPane.xhtml

@@ -817,6 +817,7 @@
 				<vbox width="350" id="zotero-tabs-menu-wrapper">
 					<html:input id="zotero-tabs-menu-filter" 
 						oninput="Zotero_Tabs.handleTabsMenuFilterInput(event, this)"
+						onfocus="Zotero_Tabs.resetFocusIndex()"
 						tabindex="0"
 						data-l10n-id="zotero-tabs-menu-filter"
 					/>