Backed out changeset 75c44ff76360 (bug 1892965) for causing multiple failures

browser/base/content/browser-box.inc.xhtml

@@ -3,7 +3,7 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 <hbox flex="1" id="browser">
-  <html:sidebar-main id="sidebar-main" flex="1" hidden="true"></html:sidebar-main>
+  <html:sidebar-launcher id="sidebar-launcher" flex="1" hidden="true"></html:sidebar-launcher>
   <vbox id="sidebar-box" hidden="true" class="chromeclass-extrachrome">
     <box id="sidebar-header" align="center">
       <toolbarbutton id="sidebar-switcher-target" class="tabbable" aria-expanded="false">
@@ -13,7 +13,7 @@
       </toolbarbutton>
       <image id="sidebar-throbber"/>
       <spacer id="sidebar-spacer"/>
-      <toolbarbutton id="sidebar-close" class="close-icon tabbable" data-l10n-id="sidebar-close-button" oncommand="SidebarController.hide();"/>
+      <toolbarbutton id="sidebar-close" class="close-icon tabbable" data-l10n-id="sidebar-close-button" oncommand="SidebarUI.hide();"/>
     </box>
     <browser id="sidebar" autoscroll="false" disablehistory="true" disablefullscreen="true" tooltip="aHTMLTooltip"/>
   </vbox>

browser/base/content/browser-menubar.inc

@@ -140,7 +140,7 @@
                   </menupopup>
                 </menu>
                 <menu id="viewSidebarMenuMenu" data-l10n-id="menu-view-sidebar">
-                  <menupopup id="viewSidebarMenu" onpopupshowing="SidebarController.setMegalistMenubarVisibility(event);">
+                  <menupopup id="viewSidebarMenu" onpopupshowing="SidebarUI.setMegalistMenubarVisibility(event);">
                   </menupopup>
                 </menu>
                 <menuseparator/>

browser/base/content/browser-places.js

@@ -1377,7 +1377,7 @@ var BookmarkingUI = {
 
     this.updateLabel(
       "BMB_viewBookmarksSidebar",
-      SidebarController.currentID == "viewBookmarksSidebar"
+      SidebarUI.currentID == "viewBookmarksSidebar"
     );
     this.updateLabel("BMB_viewBookmarksToolbar", !this.toolbar.collapsed);
   },

browser/base/content/browser-sets.inc

@@ -276,7 +276,7 @@
     <key id="viewBookmarksSidebarKb"
          data-l10n-id="bookmark-show-sidebar-shortcut"
          modifiers="accel"
-         oncommand="SidebarController.toggle('viewBookmarksSidebar');"/>
+         oncommand="SidebarUI.toggle('viewBookmarksSidebar');"/>
     <key id="viewBookmarksToolbarKb"
          data-l10n-id="bookmark-show-toolbar-shortcut"
          oncommand="BookmarkingUI.toggleBookmarksToolbar('shortcut');"
@@ -295,7 +295,7 @@
 #else
          modifiers="accel"
 #endif
-         oncommand="SidebarController.toggle('viewHistorySidebar');"/>
+         oncommand="SidebarUI.toggle('viewHistorySidebar');"/>
 
     <key id="key_fullZoomReduce" data-l10n-id="full-zoom-reduce-shortcut" command="cmd_fullZoomReduce"  modifiers="accel"/>
     <key                         data-l10n-id="full-zoom-reduce-shortcut-alt-a" command="cmd_fullZoomReduce"  modifiers="accel"/>

browser/base/content/browser.js

@@ -1711,7 +1711,7 @@ var gBrowserInit = {
     gBrowser.addProgressListener(window.XULBrowserWindow);
     gBrowser.addTabsProgressListener(window.TabsProgressListener);
 
-    SidebarController.init();
+    SidebarUI.init();
 
     // We do this in onload because we want to ensure the button's state
     // doesn't flicker as the window is being shown.
@@ -1982,7 +1982,7 @@ var gBrowserInit = {
       // Enable the Restore Last Session command if needed
       RestoreLastSessionObserver.init();
 
-      SidebarController.startDelayedLoad();
+      SidebarUI.startDelayedLoad();
 
       PanicButtonNotifier.init();
     });
@@ -2519,7 +2519,7 @@ var gBrowserInit = {
 
     CaptivePortalWatcher.uninit();
 
-    SidebarController.uninit();
+    SidebarUI.uninit();
 
     DownloadsButton.uninit();
 
@@ -2632,7 +2632,7 @@ function HandleAppCommandEvent(evt) {
       BrowserSearch.webSearch();
       break;
     case "Bookmarks":
-      SidebarController.toggle("viewBookmarksSidebar");
+      SidebarUI.toggle("viewBookmarksSidebar");
       break;
     case "Home":
       BrowserCommands.home();
@@ -6275,10 +6275,9 @@ var gUIDensity = {
     }
 
     let docs = [document.documentElement];
-    let shouldUpdateSidebar =
-      SidebarController.initialized && SidebarController.isOpen;
+    let shouldUpdateSidebar = SidebarUI.initialized && SidebarUI.isOpen;
     if (shouldUpdateSidebar) {
-      docs.push(SidebarController.browser.contentDocument.documentElement);
+      docs.push(SidebarUI.browser.contentDocument.documentElement);
     }
     for (let doc of docs) {
       switch (mode) {
@@ -6294,7 +6293,7 @@ var gUIDensity = {
       }
     }
     if (shouldUpdateSidebar) {
-      let tree = SidebarController.browser.contentDocument.querySelector(
+      let tree = SidebarUI.browser.contentDocument.querySelector(
         ".sidebar-placesTree"
       );
       if (tree) {

browser/base/content/main-popupset.inc.xhtml

@@ -256,26 +256,26 @@
     <menuitem id="sidebar-switcher-bookmarks"
               data-l10n-id="sidebar-menu-bookmarks"
               key="viewBookmarksSidebarKb"
-              oncommand="SidebarController.show('viewBookmarksSidebar');"/>
+              oncommand="SidebarUI.show('viewBookmarksSidebar');"/>
     <menuitem id="sidebar-switcher-history"
               data-l10n-id="sidebar-menu-history"
               key="key_gotoHistory"
-              oncommand="SidebarController.show('viewHistorySidebar');"/>
+              oncommand="SidebarUI.show('viewHistorySidebar');"/>
     <menuitem id="sidebar-switcher-tabs"
               data-l10n-id="sidebar-menu-synced-tabs"
               class="sync-ui-item"
-              oncommand="SidebarController.show('viewTabsSidebar');"/>
+              oncommand="SidebarUI.show('viewTabsSidebar');"/>
     <menuitem id="sidebar-switcher-megalist"
               data-l10n-id="sidebar-menu-megalist"
-              oncommand="SidebarController.show('viewMegalistSidebar');"/>
+              oncommand="SidebarUI.show('viewMegalistSidebar');"/>
     <menuseparator/>
     <!-- Extension toolbarbuttons go here. -->
     <menuseparator id="sidebar-extensions-separator"/>
     <menuitem id="sidebar-reverse-position"
-              oncommand="SidebarController.reversePosition()"/>
+              oncommand="SidebarUI.reversePosition()"/>
     <menuseparator/>
     <menuitem data-l10n-id="sidebar-menu-close"
-              oncommand="SidebarController.hide()"/>
+              oncommand="SidebarUI.hide()"/>
   </menupopup>
 
   <menupopup id="toolbar-context-menu"

browser/base/content/navigator-toolbox.inc.xhtml

@@ -621,7 +621,7 @@
         <menuitem id="BMB_viewBookmarksSidebar"
                   data-l10n-id="bookmarks-tools-sidebar-visibility"
                   data-l10n-args='{ "isVisible": false }'
-                  oncommand="SidebarController.toggle('viewBookmarksSidebar');"
+                  oncommand="SidebarUI.toggle('viewBookmarksSidebar');"
                   key="viewBookmarksSidebarKb"/>
         <menuitem id="BMB_searchBookmarks"
                   data-l10n-id="bookmarks-search"

browser/base/content/test/general/browser_documentnavigation.js

@@ -229,7 +229,7 @@ add_task(async function () {
   let sidebar = document.getElementById("sidebar");
 
   let loadPromise = BrowserTestUtils.waitForEvent(sidebar, "load", true);
-  SidebarController.toggle("viewBookmarksSidebar");
+  SidebarUI.toggle("viewBookmarksSidebar");
   await loadPromise;
 
   gURLBar.focus();
@@ -278,7 +278,7 @@ add_task(async function () {
     "back focus with sidebar urlbar"
   );
 
-  SidebarController.toggle("viewBookmarksSidebar");
+  SidebarUI.toggle("viewBookmarksSidebar");
 });
 
 // Navigate when the downloads panel is open

browser/base/content/test/sidebar/browser_sidebar_adopt.js

@@ -5,7 +5,7 @@
  * during the initial browser startup - but it would be hard to do with a mochitest. */
 
 registerCleanupFunction(() => {
-  SidebarController.hide();
+  SidebarUI.hide();
 });
 
 function failIfSidebarFocusedFires() {
@@ -26,7 +26,7 @@ add_task(async function testAdoptedTwoWindows() {
   info("Ensure that sidebar state is adopted only from the opener");
 
   let win1 = await BrowserTestUtils.openNewBrowserWindow();
-  await win1.SidebarController.show("viewBookmarksSidebar");
+  await win1.SidebarUI.show("viewBookmarksSidebar");
   await BrowserTestUtils.closeWindow(win1);
 
   let win2 = await BrowserTestUtils.openNewBrowserWindow();
@@ -34,7 +34,7 @@ add_task(async function testAdoptedTwoWindows() {
     !win2.document.getElementById("sidebar-button").hasAttribute("checked"),
     "Sidebar button isn't checked"
   );
-  ok(!win2.SidebarController.isOpen, "Sidebar is closed");
+  ok(!win2.SidebarUI.isOpen, "Sidebar is closed");
   await BrowserTestUtils.closeWindow(win2);
 });
 
@@ -46,7 +46,7 @@ add_task(async function testEventsReceivedInMainWindow() {
   let initialShown = BrowserTestUtils.waitForEvent(window, "SidebarShown");
   let initialFocus = BrowserTestUtils.waitForEvent(window, "SidebarFocused");
 
-  await SidebarController.show("viewBookmarksSidebar");
+  await SidebarUI.show("viewBookmarksSidebar");
   await initialShown;
   await initialFocus;
 

browser/base/content/test/sidebar/browser_sidebar_app_locale_changed.js

@@ -8,7 +8,7 @@
 
 add_task(function cleanup() {
   registerCleanupFunction(() => {
-    SidebarController.hide();
+    SidebarUI.hide();
   });
 });
 
@@ -17,7 +17,7 @@ add_task(function cleanup() {
  */
 async function testLiveReloading(sidebarName) {
   info("Showing the sidebar " + sidebarName);
-  await SidebarController.show(sidebarName);
+  await SidebarUI.show(sidebarName);
 
   function getTreeChildren() {
     const sidebarDoc =
@@ -44,7 +44,7 @@ async function testLiveReloading(sidebarName) {
   );
 
   info("Hiding the sidebar");
-  SidebarController.hide();
+  SidebarUI.hide();
 }
 
 add_task(async function test_bookmarks_sidebar() {

browser/base/content/test/sidebar/browser_sidebar_keys.js

@@ -11,11 +11,11 @@ async function testSidebarKeyToggle(key, options, expectedSidebarId) {
     expectedSidebarId
   );
   EventUtils.synthesizeKey(key, options);
-  Assert.ok(!SidebarController.isOpen);
+  Assert.ok(!SidebarUI.isOpen);
 }
 
 add_task(async function test_sidebar_keys() {
-  registerCleanupFunction(() => SidebarController.hide());
+  registerCleanupFunction(() => SidebarUI.hide());
 
   await testSidebarKeyToggle("b", { accelKey: true }, "viewBookmarksSidebar");
 
@@ -30,7 +30,7 @@ add_task(async function test_sidebar_in_customize_mode() {
   let { CustomizableUI } = ChromeUtils.importESModule(
     "resource:///modules/CustomizableUI.sys.mjs"
   );
-  registerCleanupFunction(() => SidebarController.hide());
+  registerCleanupFunction(() => SidebarUI.hide());
 
   let placement = CustomizableUI.getPlacementOfWidget("sidebar-button");
   if (!(placement?.area == CustomizableUI.AREA_NAVBAR)) {
@@ -55,7 +55,7 @@ add_task(async function test_sidebar_in_customize_mode() {
     ).a;
 
   let promiseShown = BrowserTestUtils.waitForEvent(window, "SidebarShown");
-  SidebarController.show("viewBookmarksSidebar");
+  SidebarUI.show("viewBookmarksSidebar");
   await promiseShown;
 
   Assert.greater(
@@ -80,8 +80,8 @@ add_task(async function test_sidebar_in_customize_mode() {
   );
 
   // Attempt toggle - should fail in customize mode.
-  await SidebarController.toggle();
-  ok(SidebarController.isOpen, "Sidebar is still open");
+  await SidebarUI.toggle();
+  ok(SidebarUI.isOpen, "Sidebar is still open");
 
   // Exit customize mode. This should re-enable the toggle and make the sidebar
   // toggle widget appear checked again, since toggle() didn't hide the sidebar.
@@ -98,8 +98,8 @@ add_task(async function test_sidebar_in_customize_mode() {
     "Sidebar widget background should appear checked again"
   );
 
-  await SidebarController.toggle();
-  ok(!SidebarController.isOpen, "Sidebar is closed");
+  await SidebarUI.toggle();
+  ok(!SidebarUI.isOpen, "Sidebar is closed");
   Assert.equal(
     getBGAlpha(),
     0,

browser/base/content/test/sidebar/browser_sidebar_move.js

@@ -1,17 +1,17 @@
 registerCleanupFunction(() => {
   Services.prefs.clearUserPref("sidebar.position_start");
-  SidebarController.hide();
+  SidebarUI.hide();
 });
 
 const EXPECTED_START_ORDINALS = [
-  ["sidebar-main", 1],
+  ["sidebar-launcher", 1],
   ["sidebar-box", 2],
   ["sidebar-splitter", 3],
   ["appcontent", 4],
 ];
 
 const EXPECTED_END_ORDINALS = [
-  ["sidebar-main", 5],
+  ["sidebar-launcher", 5],
   ["sidebar-box", 4],
   ["sidebar-splitter", 3],
   ["appcontent", 2],
@@ -25,8 +25,8 @@ function getBrowserChildrenWithOrdinals() {
 }
 
 add_task(async function () {
-  await SidebarController.show("viewBookmarksSidebar");
-  SidebarController.showSwitcherPanel();
+  await SidebarUI.show("viewBookmarksSidebar");
+  SidebarUI.showSwitcherPanel();
 
   let reversePositionButton = document.getElementById(
     "sidebar-reverse-position"
@@ -43,8 +43,8 @@ add_task(async function () {
   ok(!box.hasAttribute("positionend"), "Positioned start");
 
   // Moved to right
-  SidebarController.reversePosition();
-  SidebarController.showSwitcherPanel();
+  SidebarUI.reversePosition();
+  SidebarUI.showSwitcherPanel();
   Assert.deepEqual(
     getBrowserChildrenWithOrdinals(),
     EXPECTED_END_ORDINALS,
@@ -58,8 +58,8 @@ add_task(async function () {
   ok(box.hasAttribute("positionend"), "Positioned end");
 
   // Moved to back to left
-  SidebarController.reversePosition();
-  SidebarController.showSwitcherPanel();
+  SidebarUI.reversePosition();
+  SidebarUI.showSwitcherPanel();
   Assert.deepEqual(
     getBrowserChildrenWithOrdinals(),
     EXPECTED_START_ORDINALS,

browser/base/content/test/sidebar/browser_sidebar_persist.js

@@ -18,7 +18,7 @@ add_task(async function persist_sidebar_width() {
   {
     info("Showing new window and setting sidebar box");
     const win = await BrowserTestUtils.openNewBrowserWindow();
-    await win.SidebarController.show("viewBookmarksSidebar");
+    await win.SidebarUI.show("viewBookmarksSidebar");
     win.document.getElementById("sidebar-box").style.width = "100px";
     await BrowserTestUtils.closeWindow(win);
   }
@@ -26,7 +26,7 @@ add_task(async function persist_sidebar_width() {
   {
     info("Showing new window and seeing persisted width");
     const win = await BrowserTestUtils.openNewBrowserWindow();
-    await win.SidebarController.show("viewBookmarksSidebar");
+    await win.SidebarUI.show("viewBookmarksSidebar");
     is(
       win.document.getElementById("sidebar-box").style.width,
       "100px",

browser/base/content/test/sidebar/browser_sidebar_switcher.js

@@ -1,5 +1,5 @@
 registerCleanupFunction(() => {
-  SidebarController.hide();
+  SidebarUI.hide();
 });
 
 /**
@@ -9,14 +9,14 @@ registerCleanupFunction(() => {
  */
 function showSwitcherPanelPromise() {
   return new Promise(resolve => {
-    SidebarController._switcherPanel.addEventListener(
+    SidebarUI._switcherPanel.addEventListener(
       "popupshown",
       () => {
         resolve();
       },
       { once: true }
     );
-    SidebarController.showSwitcherPanel();
+    SidebarUI.showSwitcherPanel();
   });
 }
 
@@ -25,10 +25,7 @@ function showSwitcherPanelPromise() {
  * @returns Promise which resolves when the popup menu is opened
  */
 async function waitForSwitcherPopupShown() {
-  return BrowserTestUtils.waitForEvent(
-    SidebarController._switcherPanel,
-    "popupshown"
-  );
+  return BrowserTestUtils.waitForEvent(SidebarUI._switcherPanel, "popupshown");
 }
 
 /**
@@ -66,7 +63,7 @@ async function testSidebarMenuKeyToggle(key, sidebarTitle) {
   info(`Testing "${key}" key handling of sidebar menu popup items
   to access ${sidebarTitle} sidebar`);
 
-  Assert.ok(SidebarController.isOpen, "Sidebar is open");
+  Assert.ok(SidebarUI.isOpen, "Sidebar is open");
 
   let sidebarSwitcher = document.querySelector("#sidebar-switcher-target");
   let sidebar = document.getElementById("sidebar");
@@ -92,7 +89,7 @@ async function testSidebarMenuKeyToggle(key, sidebarTitle) {
     "The sidebar switcher target button is focused"
   );
   Assert.equal(
-    SidebarController._switcherPanel.state,
+    SidebarUI._switcherPanel.state,
     "closed",
     "Sidebar menu popup is closed"
   );
@@ -105,7 +102,7 @@ async function testSidebarMenuKeyToggle(key, sidebarTitle) {
   await promisePopupShown;
 
   Assert.equal(
-    SidebarController._switcherPanel.state,
+    SidebarUI._switcherPanel.state,
     "open",
     "Sidebar menu popup is open"
   );
@@ -114,7 +111,7 @@ async function testSidebarMenuKeyToggle(key, sidebarTitle) {
 
   let arrowDown = async (menuitemId, msg) => {
     let menuItemActive = BrowserTestUtils.waitForEvent(
-      SidebarController._switcherPanel,
+      SidebarUI._switcherPanel,
       "DOMMenuItemActive"
     );
     EventUtils.synthesizeKey("KEY_ArrowDown", {});
@@ -152,18 +149,18 @@ async function testSidebarMenuKeyToggle(key, sidebarTitle) {
   info("Testing keyboard navigation when a sidebar menu popup is closed");
 
   Assert.equal(
-    SidebarController._switcherPanel.state,
+    SidebarUI._switcherPanel.state,
     "closed",
     "Sidebar menu popup is closed"
   );
   // Test the sidebar panel is updated
   Assert.equal(
-    SidebarController._box.getAttribute("sidebarcommand"),
+    SidebarUI._box.getAttribute("sidebarcommand"),
     `view${sidebarTitle}Sidebar` /* e.g. "viewHistorySidebar" */,
     `${sidebarTitle} sidebar loaded`
   );
   Assert.equal(
-    SidebarController.currentID,
+    SidebarUI.currentID,
     `view${sidebarTitle}Sidebar` /* e.g. "viewHistorySidebar" */,
     `${sidebarTitle}'s current ID is updated to a target view`
   );
@@ -176,7 +173,7 @@ add_task(async function markup() {
       false,
       "Unexpected sidebar found - a previous test failed to cleanup correctly"
     );
-    SidebarController.hide();
+    SidebarUI.hide();
   }
 
   let sidebarPopup = document.querySelector("#sidebarMenu-popup");
@@ -208,7 +205,7 @@ add_task(async function markup() {
 
   info("Test dynamic changes in the markup of the sidebar switcher control");
 
-  await SidebarController.show("viewBookmarksSidebar");
+  await SidebarUI.show("viewBookmarksSidebar");
   await showSwitcherPanelPromise();
 
   Assert.equal(
@@ -232,25 +229,25 @@ add_task(async function markup() {
     "Sidebar switcher button is collapsed when a sidebar menu is dismissed"
   );
 
-  SidebarController.hide();
+  SidebarUI.hide();
 });
 
 add_task(async function keynav() {
   // If a sidebar is already open, close it.
-  if (SidebarController.isOpen) {
+  if (SidebarUI.isOpen) {
     Assert.ok(
       false,
       "Unexpected sidebar found - a previous test failed to cleanup correctly"
     );
-    SidebarController.hide();
+    SidebarUI.hide();
   }
 
-  await SidebarController.show("viewBookmarksSidebar");
+  await SidebarUI.show("viewBookmarksSidebar");
 
   await testSidebarMenuKeyToggle("KEY_Enter", "History");
   await testSidebarMenuKeyToggle(" ", "Tabs");
 
-  SidebarController.hide();
+  SidebarUI.hide();
 });
 
 add_task(async function mouse() {
@@ -260,11 +257,11 @@ add_task(async function mouse() {
       false,
       "Unexpected sidebar found - a previous test failed to cleanup correctly"
     );
-    SidebarController.hide();
+    SidebarUI.hide();
   }
 
   let sidebar = document.querySelector("#sidebar-box");
-  await SidebarController.show("viewBookmarksSidebar");
+  await SidebarUI.show("viewBookmarksSidebar");
 
   await showSwitcherPanelPromise();
   await pickSwitcherMenuitem("#sidebar-switcher-history");

browser/components/customizableui/CustomizableWidgets.sys.mjs

@@ -280,7 +280,7 @@ export const CustomizableWidgets = [
     tooltiptext: "sidebar-button.tooltiptext2",
     onCommand(aEvent) {
       let win = aEvent.target.ownerGlobal;
-      win.SidebarController.toggle();
+      win.SidebarUI.toggle();
     },
     onCreated(aNode) {
       // Add an observer so the button is checked while the sidebar is open

browser/components/customizableui/test/browser_sidebar_toggle.js

@@ -9,7 +9,7 @@ registerCleanupFunction(async function () {
 
   // Ensure sidebar is hidden after each test:
   if (!document.getElementById("sidebar-box").hidden) {
-    SidebarController.hide();
+    SidebarUI.hide();
   }
 });
 
@@ -21,14 +21,14 @@ var showSidebar = async function (win = window) {
   );
   EventUtils.synthesizeMouseAtCenter(button, {}, win);
   await sidebarFocusedPromise;
-  ok(win.SidebarController.isOpen, "Sidebar is opened");
+  ok(win.SidebarUI.isOpen, "Sidebar is opened");
   ok(button.hasAttribute("checked"), "Toolbar button is checked");
 };
 
 var hideSidebar = async function (win = window) {
   let button = win.document.getElementById("sidebar-button");
   EventUtils.synthesizeMouseAtCenter(button, {}, win);
-  ok(!win.SidebarController.isOpen, "Sidebar is closed");
+  ok(!win.SidebarUI.isOpen, "Sidebar is closed");
   ok(!button.hasAttribute("checked"), "Toolbar button isn't checked");
 };
 
@@ -37,26 +37,18 @@ add_task(async function () {
   CustomizableUI.addWidgetToArea("sidebar-button", "nav-bar");
 
   await showSidebar();
-  is(
-    SidebarController.currentID,
-    "viewBookmarksSidebar",
-    "Default sidebar selected"
-  );
-  await SidebarController.show("viewHistorySidebar");
+  is(SidebarUI.currentID, "viewBookmarksSidebar", "Default sidebar selected");
+  await SidebarUI.show("viewHistorySidebar");
 
   await hideSidebar();
   await showSidebar();
-  is(
-    SidebarController.currentID,
-    "viewHistorySidebar",
-    "Selected sidebar remembered"
-  );
+  is(SidebarUI.currentID, "viewHistorySidebar", "Selected sidebar remembered");
 
   await hideSidebar();
   let otherWin = await BrowserTestUtils.openNewBrowserWindow();
   await showSidebar(otherWin);
   is(
-    otherWin.SidebarController.currentID,
+    otherWin.SidebarUI.currentID,
     "viewHistorySidebar",
     "Selected sidebar remembered across windows"
   );

browser/components/extensions/parent/ext-menus.js

@@ -1100,11 +1100,11 @@ const menuTracker = {
     );
     sidebarHeader.addEventListener("SidebarShown", menuTracker.onSidebarShown);
 
-    await window.SidebarController.promiseInitialized;
+    await window.SidebarUI.promiseInitialized;
 
     if (
       !window.closed &&
-      window.SidebarController.currentID === "viewBookmarksSidebar"
+      window.SidebarUI.currentID === "viewBookmarksSidebar"
     ) {
       menuTracker.onSidebarShown({ currentTarget: sidebarHeader });
     }
@@ -1121,8 +1121,8 @@ const menuTracker = {
     );
     sidebarHeader.removeEventListener("SidebarShown", this.onSidebarShown);
 
-    if (window.SidebarController.currentID === "viewBookmarksSidebar") {
-      let sidebarBrowser = window.SidebarController.browser;
+    if (window.SidebarUI.currentID === "viewBookmarksSidebar") {
+      let sidebarBrowser = window.SidebarUI.browser;
       sidebarBrowser.removeEventListener("load", this.onSidebarShown);
       const menu =
         sidebarBrowser.contentDocument.getElementById("placesContext");
@@ -1134,10 +1134,10 @@ const menuTracker = {
     // The event target is an element in a browser window, so |window| will be
     // the browser window that contains the sidebar.
     const window = event.currentTarget.ownerGlobal;
-    if (window.SidebarController.currentID === "viewBookmarksSidebar") {
-      let sidebarBrowser = window.SidebarController.browser;
+    if (window.SidebarUI.currentID === "viewBookmarksSidebar") {
+      let sidebarBrowser = window.SidebarUI.browser;
       if (sidebarBrowser.contentDocument.readyState !== "complete") {
-        // SidebarController.currentID may be updated before the bookmark sidebar's
+        // SidebarUI.currentID may be updated before the bookmark sidebar's
         // document has finished loading. This sometimes happens when the
         // sidebar is automatically shown when a new window is opened.
         sidebarBrowser.addEventListener("load", menuTracker.onSidebarShown, {

browser/components/extensions/parent/ext-sidebarAction.js

@@ -82,8 +82,8 @@ this.sidebarAction = class extends ExtensionAPI {
     }
 
     for (let window of windowTracker.browserWindows()) {
-      let { SidebarController } = window;
-      SidebarController.removeSidebar(this.id);
+      let { SidebarUI } = window;
+      SidebarUI.removeExtension(this.id);
     }
     windowTracker.removeOpenListener(this.windowOpenListener);
   }
@@ -91,9 +91,9 @@ this.sidebarAction = class extends ExtensionAPI {
   static onUninstall(id) {
     const sidebarId = `${makeWidgetId(id)}-sidebar-action`;
     for (let window of windowTracker.browserWindows()) {
-      let { SidebarController } = window;
-      if (SidebarController.lastOpenedId === sidebarId) {
-        SidebarController.lastOpenedId = null;
+      let { SidebarUI } = window;
+      if (SidebarUI.lastOpenedId === sidebarId) {
+        SidebarUI.lastOpenedId = null;
       }
     }
   }
@@ -107,12 +107,12 @@ this.sidebarAction = class extends ExtensionAPI {
     let install = this.extension.startupReason === "ADDON_INSTALL";
     for (let window of windowTracker.browserWindows()) {
       this.updateWindow(window);
-      let { SidebarController } = window;
+      let { SidebarUI } = window;
       if (
         (install && this.extension.manifest.sidebar_action.open_at_install) ||
-        SidebarController.lastOpenedId == this.id
+        SidebarUI.lastOpenedId == this.id
       ) {
-        SidebarController.show(this.id);
+        SidebarUI.show(this.id);
       }
     }
   }
@@ -122,14 +122,14 @@ this.sidebarAction = class extends ExtensionAPI {
       return;
     }
     this.panel = details.panel;
-    let { SidebarController } = window;
-    SidebarController.registerExtension(this.id, {
+    let { SidebarUI } = window;
+    SidebarUI.registerExtension(this.id, {
       icon: this.getMenuIcon(details),
       menuId: this.menuId,
       title: details.title,
       extensionId: this.extension.id,
       onload: () =>
-        SidebarController.browser.contentWindow.loadPanel(
+        SidebarUI.browser.contentWindow.loadPanel(
           this.extension.id,
           this.panel,
           this.browserStyle
@@ -155,7 +155,7 @@ this.sidebarAction = class extends ExtensionAPI {
    *        Tab specific sidebar configuration.
    */
   updateButton(window, tabData) {
-    let { document, SidebarController } = window;
+    let { document, SidebarUI } = window;
     let title = tabData.title || this.extension.name;
     if (!document.getElementById(this.menuId)) {
       // Menu items are added when new windows are opened, or from onReady (when
@@ -167,7 +167,7 @@ this.sidebarAction = class extends ExtensionAPI {
     if (urlChanged) {
       this.panel = tabData.panel;
     }
-    SidebarController.setExtensionAttributes(
+    SidebarUI.setExtensionAttributes(
       this.id,
       {
         icon: this.getMenuIcon(tabData),
@@ -315,9 +315,9 @@ this.sidebarAction = class extends ExtensionAPI {
    * @param {ChromeWindow} window
    */
   triggerAction(window) {
-    let { SidebarController } = window;
-    if (SidebarController && this.extension.canAccessWindow(window)) {
-      SidebarController.toggle(this.id);
+    let { SidebarUI } = window;
+    if (SidebarUI && this.extension.canAccessWindow(window)) {
+      SidebarUI.toggle(this.id);
     }
   }
 
@@ -327,9 +327,9 @@ this.sidebarAction = class extends ExtensionAPI {
    * @param {ChromeWindow} window
    */
   open(window) {
-    let { SidebarController } = window;
-    if (SidebarController && this.extension.canAccessWindow(window)) {
-      SidebarController.show(this.id);
+    let { SidebarUI } = window;
+    if (SidebarUI && this.extension.canAccessWindow(window)) {
+      SidebarUI.show(this.id);
     }
   }
 
@@ -340,7 +340,7 @@ this.sidebarAction = class extends ExtensionAPI {
    */
   close(window) {
     if (this.isOpen(window)) {
-      window.SidebarController.hide();
+      window.SidebarUI.hide();
     }
   }
 
@@ -350,15 +350,15 @@ this.sidebarAction = class extends ExtensionAPI {
    * @param {ChromeWindow} window
    */
   toggle(window) {
-    let { SidebarController } = window;
-    if (!SidebarController || !this.extension.canAccessWindow(window)) {
+    let { SidebarUI } = window;
+    if (!SidebarUI || !this.extension.canAccessWindow(window)) {
       return;
     }
 
     if (!this.isOpen(window)) {
-      SidebarController.show(this.id);
+      SidebarUI.show(this.id);
     } else {
-      SidebarController.hide();
+      SidebarUI.hide();
     }
   }
 
@@ -369,8 +369,8 @@ this.sidebarAction = class extends ExtensionAPI {
    * @returns {boolean}
    */
   isOpen(window) {
-    let { SidebarController } = window;
-    return SidebarController.isOpen && this.id == SidebarController.currentID;
+    let { SidebarUI } = window;
+    return SidebarUI.isOpen && this.id == SidebarUI.currentID;
   }
 
   getAPI(context) {

browser/components/extensions/test/browser/browser_ext_commands_update.js

@@ -401,11 +401,11 @@ add_task(async function updateSidebarCommand() {
   await extension.awaitMessage("sidebar");
 
   // Show and hide the switcher panel to generate the initial shortcuts.
-  let switcherShown = promisePopupShown(SidebarController._switcherPanel);
-  SidebarController.showSwitcherPanel();
+  let switcherShown = promisePopupShown(SidebarUI._switcherPanel);
+  SidebarUI.showSwitcherPanel();
   await switcherShown;
-  let switcherHidden = promisePopupHidden(SidebarController._switcherPanel);
-  SidebarController.hideSwitcherPanel();
+  let switcherHidden = promisePopupHidden(SidebarUI._switcherPanel);
+  SidebarUI.hideSwitcherPanel();
   await switcherHidden;
 
   let menuitemId = `sidebarswitcher_menu_${makeWidgetId(

browser/components/extensions/test/browser/browser_ext_contextMenus.js

@@ -724,7 +724,7 @@ add_task(async function test_bookmark_sidebar_contextmenu() {
     await extension.startup();
     let bookmarkGuid = await extension.awaitMessage("bookmark-created");
 
-    let sidebar = window.SidebarController.browser;
+    let sidebar = window.SidebarUI.browser;
     let menu = sidebar.contentDocument.getElementById("placesContext");
     tree.selectItems([bookmarkGuid]);
     let shown = BrowserTestUtils.waitForEvent(menu, "popupshown");

browser/components/extensions/test/browser/browser_ext_contextMenus_bookmarks.js

@@ -54,7 +54,7 @@ add_task(async function test_bookmark_sidebar_contextmenu() {
       expectedVirtualID,
     ] of expected_bookmarkID_2_virtualID) {
       info(`Testing context menu for Bookmark ID "${expectedBookmarkID}"`);
-      let sidebar = window.SidebarController.browser;
+      let sidebar = window.SidebarUI.browser;
       let menu = sidebar.contentDocument.getElementById("placesContext");
       tree.selectItems([expectedBookmarkID]);
 

browser/components/extensions/test/browser/browser_ext_menus_replace_menu_permissions.js

@@ -189,9 +189,7 @@ add_task(async function overrideContext_permissions() {
 
   // permissions.request requires user input, export helper.
   await SpecialPowers.spawn(
-    SidebarController.browser.contentDocument.getElementById(
-      "webext-panels-browser"
-    ),
+    SidebarUI.browser.contentDocument.getElementById("webext-panels-browser"),
     [],
     () => {
       const { ExtensionCommon } = ChromeUtils.importESModule(
@@ -214,9 +212,7 @@ add_task(async function overrideContext_permissions() {
     await BrowserTestUtils.synthesizeMouseAtCenter(
       "a",
       { type: "contextmenu" },
-      SidebarController.browser.contentDocument.getElementById(
-        "webext-panels-browser"
-      )
+      SidebarUI.browser.contentDocument.getElementById("webext-panels-browser")
     );
   } while (await extension.awaitMessage("continue_test"));
 

browser/components/extensions/test/browser/browser_ext_mousewheel_zoom.js

@@ -120,7 +120,7 @@ async function test_mousewheel_zoom(test) {
     const sidebar = document.getElementById("sidebar-box");
     ok(!sidebar.hidden, "Sidebar box is visible");
 
-    browser = SidebarController.browser.contentWindow.gBrowser.selectedBrowser;
+    browser = SidebarUI.browser.contentWindow.gBrowser.selectedBrowser;
   } else if (test == TESTS.BROWSER_ACTION) {
     browser = await openBrowserActionPanel(extension, undefined, true);
   } else if (test == TESTS.PAGE_ACTION) {

browser/components/extensions/test/browser/browser_ext_openPanel.js

@@ -136,16 +136,16 @@ add_task(async function test_openPopup_requires_user_interaction() {
     {},
     gBrowser.selectedBrowser
   );
-  await TestUtils.waitForCondition(() => !SidebarController.isOpen);
+  await TestUtils.waitForCondition(() => !SidebarUI.isOpen);
 
   await click("#toggleSidebarAction");
-  await TestUtils.waitForCondition(() => SidebarController.isOpen);
+  await TestUtils.waitForCondition(() => SidebarUI.isOpen);
   await BrowserTestUtils.synthesizeMouseAtCenter(
     "#toggleSidebarAction",
     {},
     gBrowser.selectedBrowser
   );
-  await TestUtils.waitForCondition(() => !SidebarController.isOpen);
+  await TestUtils.waitForCondition(() => !SidebarUI.isOpen);
 
   BrowserTestUtils.removeTab(gBrowser.selectedTab);
   await extension.unload();

browser/components/extensions/test/browser/browser_ext_sidebarAction.js

@@ -154,7 +154,7 @@ add_task(async function sidebar_isOpen() {
   info("Test extension1's sidebar is opened on install");
   await extension1.awaitMessage("sidebar");
   await sendMessage(extension1, "isOpen", { result: true });
-  let sidebar1ID = SidebarController.currentID;
+  let sidebar1ID = SidebarUI.currentID;
 
   info("Load extension2");
   let extension2 = ExtensionTestUtils.loadExtension(getExtData());
@@ -166,7 +166,7 @@ add_task(async function sidebar_isOpen() {
   await sendMessage(extension2, "isOpen", { result: true });
 
   info("Switch back to extension1's sidebar");
-  SidebarController.show(sidebar1ID);
+  SidebarUI.show(sidebar1ID);
   await extension1.awaitMessage("sidebar");
   await sendMessage(extension1, "isOpen", { result: true });
   await sendMessage(extension2, "isOpen", { result: false });
@@ -201,7 +201,7 @@ add_task(async function sidebar_isOpen() {
   newWin.close();
 
   info("Close the sidebar in the original window");
-  SidebarController.hide();
+  SidebarUI.hide();
   await sendMessage(extension1, "isOpen", { result: false });
   await sendMessage(extension2, "isOpen", { result: false });
 
@@ -229,15 +229,11 @@ add_task(async function testShortcuts() {
 
   async function toggleSwitcherPanel(win = window) {
     // Open and close the switcher panel to trigger shortcut content rendering.
-    let switcherPanelShown = promisePopupShown(
-      win.SidebarController._switcherPanel
-    );
-    win.SidebarController.showSwitcherPanel();
+    let switcherPanelShown = promisePopupShown(win.SidebarUI._switcherPanel);
+    win.SidebarUI.showSwitcherPanel();
     await switcherPanelShown;
-    let switcherPanelHidden = promisePopupHidden(
-      win.SidebarController._switcherPanel
-    );
-    win.SidebarController.hideSwitcherPanel();
+    let switcherPanelHidden = promisePopupHidden(win.SidebarUI._switcherPanel);
+    win.SidebarUI.hideSwitcherPanel();
     await switcherPanelHidden;
   }
 
@@ -320,22 +316,20 @@ add_task(async function sidebar_switcher_panel_icon_update() {
   info("Test extension's sidebar is opened on install");
   await extension.awaitMessage("sidebar");
   await sendMessage(extension, "isOpen", { result: true });
-  const sidebarID = SidebarController.currentID;
+  const sidebarID = SidebarUI.currentID;
 
-  const item = SidebarController._switcherPanel.querySelector(
-    ".webextension-menuitem"
-  );
+  const item = SidebarUI._switcherPanel.querySelector(".webextension-menuitem");
   let iconUrl = `moz-extension://${extension.uuid}/default.png`;
   is(
     item.style.getPropertyValue("--webextension-menuitem-image"),
     `image-set(url("${iconUrl}"), url("${iconUrl}") 2x)`,
     "Extension has the correct icon."
   );
-  SidebarController.hide();
+  SidebarUI.hide();
   await sendMessage(extension, "isOpen", { result: false });
 
   await sendMessage(extension, "set-icon", "1.png");
-  await SidebarController.show(sidebarID);
+  await SidebarUI.show(sidebarID);
   await extension.awaitMessage("sidebar");
   await sendMessage(extension, "isOpen", { result: true });
   iconUrl = `moz-extension://${extension.uuid}/1.png`;

browser/components/extensions/test/browser/browser_ext_sidebarAction_click.js

@@ -54,7 +54,7 @@ add_task(async function test_sidebar_click_isAppTab_behavior() {
   await extension.awaitMessage("sidebar-ready");
 
   // This test fails if docShell.isAppTab has not been set to true.
-  let content = SidebarController.browser.contentWindow;
+  let content = SidebarUI.browser.contentWindow;
 
   // Wait for the layout to be flushed, otherwise this test may
   // fail intermittently if synthesizeMouseAtCenter is being called

browser/components/extensions/test/browser/browser_ext_sidebarAction_context.js

@@ -124,7 +124,7 @@ async function runTests(options) {
   });
 
   // Wait for initial sidebar load.
-  SidebarController.browser.addEventListener(
+  SidebarUI.browser.addEventListener(
     "load",
     async () => {
       // Wait for the background page listeners to be ready and

browser/components/extensions/test/browser/browser_ext_sidebarAction_httpAuth.js

@@ -42,7 +42,7 @@ add_task(async function sidebar_httpAuthPrompt() {
 
   // Wait for the http auth prompt and close it with accept button.
   let promptPromise = PromptTestUtils.handleNextPrompt(
-    SidebarController.browser.contentWindow,
+    SidebarUI.browser.contentWindow,
     {
       modalType: Services.prompt.MODAL_TYPE_WINDOW,
       promptType: "promptUserAndPass",

browser/components/extensions/test/browser/browser_ext_sidebarAction_incognito.js

@@ -124,14 +124,11 @@ add_task(async function test_sidebarAction_not_allowed() {
 
   await extension.startup();
   let sidebarID = `${makeWidgetId(extension.id)}-sidebar-action`;
-  ok(
-    SidebarController.sidebars.has(sidebarID),
-    "sidebar exists in non-private window"
-  );
+  ok(SidebarUI.sidebars.has(sidebarID), "sidebar exists in non-private window");
 
   let winData = await getIncognitoWindow();
 
-  let hasSidebar = winData.win.SidebarController.sidebars.has(sidebarID);
+  let hasSidebar = winData.win.SidebarUI.sidebars.has(sidebarID);
   ok(!hasSidebar, "sidebar does not exist in private window");
   // Test API access to private window data.
   extension.sendMessage(winData.details);

browser/components/extensions/test/browser/browser_ext_sidebarAction_runtime.js

@@ -52,10 +52,9 @@ add_task(async function test_sidebar_disconnect() {
   await connected;
 
   // Bug 1445080 fixes currentURI, test to avoid future breakage.
-  let currentURI =
-    window.SidebarController.browser.contentDocument.getElementById(
-      "webext-panels-browser"
-    ).currentURI;
+  let currentURI = window.SidebarUI.browser.contentDocument.getElementById(
+    "webext-panels-browser"
+  ).currentURI;
   is(currentURI.scheme, "moz-extension", "currentURI is set correctly");
 
   // switching sidebar to another extension
@@ -69,7 +68,7 @@ add_task(async function test_sidebar_disconnect() {
 
   // switching sidebar to built-in sidebar
   let disconnected = extension2.awaitMessage("disconnected");
-  window.SidebarController.show("viewBookmarksSidebar");
+  window.SidebarUI.show("viewBookmarksSidebar");
   await disconnected;
 
   await extension.unload();

browser/components/extensions/test/browser/browser_ext_sidebarAction_windows.js

@@ -49,7 +49,7 @@ add_task(async function sidebar_windows() {
 
   let secondSidebar = extension.awaitMessage("sidebar");
 
-  // SidebarController relies on window.opener being set, which is normal behavior when
+  // SidebarUI relies on window.opener being set, which is normal behavior when
   // using menu or key commands to open a new browser window.
   let win = await BrowserTestUtils.openNewBrowserWindow();
 

browser/components/extensions/test/browser/head.js

@@ -476,11 +476,10 @@ async function openContextMenuInPopup(
 }
 
 async function openContextMenuInSidebar(selector = "body") {
-  let contentAreaContextMenu =
-    SidebarController.browser.contentDocument.getElementById(
-      "contentAreaContextMenu"
-    );
-  let browser = SidebarController.browser.contentDocument.getElementById(
+  let contentAreaContextMenu = SidebarUI.browser.contentDocument.getElementById(
+    "contentAreaContextMenu"
+  );
+  let browser = SidebarUI.browser.contentDocument.getElementById(
     "webext-panels-browser"
   );
   let popupShownPromise = BrowserTestUtils.waitForEvent(
@@ -492,9 +491,7 @@ async function openContextMenuInSidebar(selector = "body") {
   // fail intermittently if synthesizeMouseAtCenter is being called
   // while the sidebar is still opening and the browser window layout
   // being recomputed.
-  await SidebarController.browser.contentWindow.promiseDocumentFlushed(
-    () => {}
-  );
+  await SidebarUI.browser.contentWindow.promiseDocumentFlushed(() => {});
 
   info("Opening context menu in sidebarAction panel");
   await BrowserTestUtils.synthesizeMouseAtCenter(

browser/components/places/content/controller.js

@@ -1436,7 +1436,7 @@ PlacesController.prototype = {
     let documentUrl = document.documentURI.toLowerCase();
     if (documentUrl.endsWith("browser.xhtml")) {
       // We're in a menu or a panel.
-      window.SidebarController._show("viewBookmarksSidebar").then(() => {
+      window.SidebarUI._show("viewBookmarksSidebar").then(() => {
         let theSidebar = document.getElementById("sidebar");
         theSidebar.contentDocument
           .getElementById("bookmarks-view")

browser/components/places/tests/browser/browser_bookmark_context_menu_contents.js

@@ -386,9 +386,7 @@ add_task(async function test_sidebar_folder_contextmenu_contents() {
         tree.selectItems([folder.guid]);
 
         let contextMenu =
-          SidebarController.browser.contentDocument.getElementById(
-            "placesContext"
-          );
+          SidebarUI.browser.contentDocument.getElementById("placesContext");
         let popupShownPromise = BrowserTestUtils.waitForEvent(
           contextMenu,
           "popupshown"
@@ -398,7 +396,7 @@ add_task(async function test_sidebar_folder_contextmenu_contents() {
         return contextMenu;
       },
       optionItems,
-      SidebarController.browser.contentDocument
+      SidebarUI.browser.contentDocument
     );
   });
 });
@@ -432,9 +430,7 @@ add_task(async function test_sidebar_multiple_folders_contextmenu_contents() {
         tree.selectItems([folder1.guid, folder2.guid]);
 
         let contextMenu =
-          SidebarController.browser.contentDocument.getElementById(
-            "placesContext"
-          );
+          SidebarUI.browser.contentDocument.getElementById("placesContext");
         let popupShownPromise = BrowserTestUtils.waitForEvent(
           contextMenu,
           "popupshown"
@@ -444,7 +440,7 @@ add_task(async function test_sidebar_multiple_folders_contextmenu_contents() {
         return contextMenu;
       },
       optionItems,
-      SidebarController.browser.contentDocument
+      SidebarUI.browser.contentDocument
     );
   });
 });
@@ -477,9 +473,7 @@ add_task(async function test_sidebar_bookmark_contextmenu_contents() {
         tree.selectItems([bookmark.guid]);
 
         let contextMenu =
-          SidebarController.browser.contentDocument.getElementById(
-            "placesContext"
-          );
+          SidebarUI.browser.contentDocument.getElementById("placesContext");
         let popupShownPromise = BrowserTestUtils.waitForEvent(
           contextMenu,
           "popupshown"
@@ -489,7 +483,7 @@ add_task(async function test_sidebar_bookmark_contextmenu_contents() {
         return contextMenu;
       },
       optionItems,
-      SidebarController.browser.contentDocument
+      SidebarUI.browser.contentDocument
     );
   });
 });
@@ -519,17 +513,13 @@ add_task(async function test_sidebar_bookmark_search_contextmenu_contents() {
         info("Checking bookmark sidebar menu contents in search context");
         // Perform a search first
         let searchBox =
-          SidebarController.browser.contentDocument.getElementById(
-            "search-box"
-          );
+          SidebarUI.browser.contentDocument.getElementById("search-box");
         searchBox.value = SECOND_BOOKMARK_TITLE;
         searchBox.doCommand();
         tree.selectItems([bookmark.guid]);
 
         let contextMenu =
-          SidebarController.browser.contentDocument.getElementById(
-            "placesContext"
-          );
+          SidebarUI.browser.contentDocument.getElementById("placesContext");
         let popupShownPromise = BrowserTestUtils.waitForEvent(
           contextMenu,
           "popupshown"
@@ -539,7 +529,7 @@ add_task(async function test_sidebar_bookmark_search_contextmenu_contents() {
         return contextMenu;
       },
       optionItems,
-      SidebarController.browser.contentDocument
+      SidebarUI.browser.contentDocument
     );
   });
 });
@@ -651,9 +641,7 @@ add_task(async function test_sidebar_mixedselection_contextmenu_contents() {
         tree.selectItems([bookmark.guid, folder.guid]);
 
         let contextMenu =
-          SidebarController.browser.contentDocument.getElementById(
-            "placesContext"
-          );
+          SidebarUI.browser.contentDocument.getElementById("placesContext");
         let popupShownPromise = BrowserTestUtils.waitForEvent(
           contextMenu,
           "popupshown"
@@ -663,7 +651,7 @@ add_task(async function test_sidebar_mixedselection_contextmenu_contents() {
         return contextMenu;
       },
       optionItems,
-      SidebarController.browser.contentDocument
+      SidebarUI.browser.contentDocument
     );
   });
 });
@@ -691,9 +679,7 @@ add_task(async function test_sidebar_multiple_bookmarks_contextmenu_contents() {
         tree.selectItems([bookmark.guid, bookmark2.guid]);
 
         let contextMenu =
-          SidebarController.browser.contentDocument.getElementById(
-            "placesContext"
-          );
+          SidebarUI.browser.contentDocument.getElementById("placesContext");
         let popupShownPromise = BrowserTestUtils.waitForEvent(
           contextMenu,
           "popupshown"
@@ -703,7 +689,7 @@ add_task(async function test_sidebar_multiple_bookmarks_contextmenu_contents() {
         return contextMenu;
       },
       optionItems,
-      SidebarController.browser.contentDocument
+      SidebarUI.browser.contentDocument
     );
   });
 });
@@ -728,9 +714,7 @@ add_task(async function test_sidebar_multiple_links_contextmenu_contents() {
         tree.selectAll();
 
         let contextMenu =
-          SidebarController.browser.contentDocument.getElementById(
-            "placesContext"
-          );
+          SidebarUI.browser.contentDocument.getElementById("placesContext");
         let popupShownPromise = BrowserTestUtils.waitForEvent(
           contextMenu,
           "popupshown"
@@ -740,7 +724,7 @@ add_task(async function test_sidebar_multiple_links_contextmenu_contents() {
         return contextMenu;
       },
       optionItems,
-      SidebarController.browser.contentDocument
+      SidebarUI.browser.contentDocument
     );
   });
 });
@@ -766,9 +750,7 @@ add_task(async function test_sidebar_mixed_bookmarks_contextmenu_contents() {
         tree.selectItems([bookmark.guid, folder.guid]);
 
         let contextMenu =
-          SidebarController.browser.contentDocument.getElementById(
-            "placesContext"
-          );
+          SidebarUI.browser.contentDocument.getElementById("placesContext");
         let popupShownPromise = BrowserTestUtils.waitForEvent(
           contextMenu,
           "popupshown"
@@ -778,7 +760,7 @@ add_task(async function test_sidebar_mixed_bookmarks_contextmenu_contents() {
         return contextMenu;
       },
       optionItems,
-      SidebarController.browser.contentDocument
+      SidebarUI.browser.contentDocument
     );
   });
 });

browser/components/places/tests/browser/browser_bookmarksProperties.js

@@ -156,7 +156,7 @@ gTests.push({
   },
 
   finish() {
-    SidebarController.hide();
+    SidebarUI.hide();
   },
 
   async cleanup() {
@@ -282,7 +282,7 @@ gTests.push({
   },
 
   finish() {
-    SidebarController.hide();
+    SidebarUI.hide();
   },
 
   async cleanup() {
@@ -399,7 +399,7 @@ gTests.push({
   },
 
   finish() {
-    SidebarController.hide();
+    SidebarUI.hide();
   },
 
   async cleanup() {
@@ -450,7 +450,7 @@ function execute_test_in_sidebar(test) {
       },
       { capture: true, once: true }
     );
-    SidebarController.show(test.sidebar);
+    SidebarUI.show(test.sidebar);
   });
 }
 

browser/components/places/tests/browser/browser_check_correct_controllers.js

@@ -32,7 +32,7 @@ add_task(async function test() {
 
   let sidebar = await promiseLoadedSidebar("viewBookmarksSidebar");
   registerCleanupFunction(() => {
-    SidebarController.hide();
+    SidebarUI.hide();
   });
 
   // Focus the tree and check if its controller is returned.
@@ -109,6 +109,6 @@ function promiseLoadedSidebar(cmd) {
       { capture: true, once: true }
     );
 
-    SidebarController.show(cmd);
+    SidebarUI.show(cmd);
   });
 }

browser/components/places/tests/browser/browser_enable_toolbar_sidebar.js

@@ -11,7 +11,7 @@
 registerCleanupFunction(async () => {
   CustomizableUI.setToolbarVisibility("PersonalToolbar", false);
   CustomizableUI.removeWidgetFromArea("library-button");
-  SidebarController.hide();
+  SidebarUI.hide();
 });
 
 async function selectAppMenuView(buttonId, viewId) {

browser/components/places/tests/browser/browser_sidebar_on_customization.js

@@ -30,9 +30,9 @@ add_setup(async function () {
 add_task(async function test_open_sidebar_and_customize() {
   await withSidebarTree("bookmarks", async tree => {
     async function checkTreeIsFunctional() {
-      Assert.ok(SidebarController.isOpen, "Sidebar is open");
+      Assert.ok(SidebarUI.isOpen, "Sidebar is open");
       Assert.ok(
-        BrowserTestUtils.isVisible(SidebarController.browser),
+        BrowserTestUtils.isVisible(SidebarUI.browser),
         "sidebar browser is visible"
       );
       Assert.ok(tree.view.result, "View result is defined");
@@ -49,7 +49,7 @@ add_task(async function test_open_sidebar_and_customize() {
     await promiseCustomizeStart();
 
     Assert.ok(
-      !BrowserTestUtils.isVisible(SidebarController.browser),
+      !BrowserTestUtils.isVisible(SidebarUI.browser),
       "sidebar browser is hidden"
     );
     Assert.ok(tree.view.result, "View result is defined");

browser/components/places/tests/browser/browser_sidebarpanels_click.js

@@ -31,7 +31,7 @@ add_task(async function test_sidebarpanels_click() {
       false,
       "Unexpected sidebar found - a previous test failed to cleanup correctly"
     );
-    SidebarController.hide();
+    SidebarUI.hide();
   }
 
   // Ensure history is clean before starting the test.
@@ -137,7 +137,7 @@ async function testPlacesPanel(testInfo) {
           await promiseAlert;
 
           executeSoon(async function () {
-            SidebarController.hide();
+            SidebarUI.hide();
             await testInfo.cleanup();
             resolve();
           });
@@ -147,7 +147,7 @@ async function testPlacesPanel(testInfo) {
     );
   });
 
-  SidebarController.show(testInfo.sidebarName);
+  SidebarUI.show(testInfo.sidebarName);
 
   return promise;
 }

browser/components/places/tests/browser/browser_toolbarbutton_menu_show_in_folder.js

@@ -11,7 +11,7 @@ const TEST_TITLE = "Test Bookmark";
 
 let appMenuButton = document.getElementById("PanelUI-menu-button");
 let bookmarksAppMenu = document.getElementById("PanelUI-bookmarks");
-let sidebarWasAlreadyOpen = SidebarController.isOpen;
+let sidebarWasAlreadyOpen = SidebarUI.isOpen;
 
 const { CustomizableUITestUtils } = ChromeUtils.importESModule(
   "resource://testing-common/CustomizableUITestUtils.sys.mjs"
@@ -86,7 +86,7 @@ add_task(async function toolbarBookmarkShowInFolder() {
   // Cleanup
   await PlacesUtils.bookmarks.eraseEverything();
   if (!sidebarWasAlreadyOpen) {
-    SidebarController.hide();
+    SidebarUI.hide();
   }
   await gCUITestUtils.hideMainMenu();
 });

browser/components/places/tests/browser/browser_views_iconsupdate.js

@@ -28,9 +28,9 @@ add_task(async function () {
   let promiseSidebarLoaded = new Promise(resolve => {
     sidebar.addEventListener("load", resolve, { capture: true, once: true });
   });
-  SidebarController.show("viewBookmarksSidebar");
+  SidebarUI.show("viewBookmarksSidebar");
   registerCleanupFunction(() => {
-    SidebarController.hide();
+    SidebarUI.hide();
   });
   await promiseSidebarLoaded;
 

browser/components/places/tests/browser/head.js

@@ -395,7 +395,7 @@ var withSidebarTree = async function (type, taskFn) {
   });
   let sidebarId =
     type == "bookmarks" ? "viewBookmarksSidebar" : "viewHistorySidebar";
-  SidebarController.show(sidebarId);
+  SidebarUI.show(sidebarId);
   await sidebarLoadedPromise;
 
   let treeId = type == "bookmarks" ? "bookmarks-view" : "historyTree";
@@ -406,7 +406,7 @@ var withSidebarTree = async function (type, taskFn) {
   try {
     await taskFn(tree);
   } finally {
-    SidebarController.hide();
+    SidebarUI.hide();
   }
 };
 

browser/components/privatebrowsing/ResetPBMPanel.sys.mjs

@@ -213,7 +213,7 @@ export const ResetPBMPanel = {
     });
 
     // In the remaining PBM window: If the sidebar is open close it.
-    triggeringWindow.SidebarController?.hide();
+    triggeringWindow.SidebarUI?.hide();
 
     // Clear session store data for the remaining PBM window.
     lazy.SessionStore.purgeDataForPrivateWindow(triggeringWindow);

browser/components/privatebrowsing/test/browser/browser_privatebrowsing_resetPBM.js

@@ -682,23 +682,23 @@ add_task(async function test_reset_action_closes_sidebar() {
   info(
     "Open the sidebar of both the private browsing window and the normal browsing window."
   );
-  await SidebarController.show("viewBookmarksSidebar");
-  await win.SidebarController.show("viewBookmarksSidebar");
+  await SidebarUI.show("viewBookmarksSidebar");
+  await win.SidebarUI.show("viewBookmarksSidebar");
 
   info("Trigger the restart PBM action");
   await ResetPBMPanel._restartPBM(win);
 
   Assert.ok(
-    SidebarController.isOpen,
+    SidebarUI.isOpen,
     "Normal browsing window sidebar should still be open."
   );
   Assert.ok(
-    !win.SidebarController.isOpen,
+    !win.SidebarUI.isOpen,
     "Private browsing sidebar should be closed."
   );
 
   // Cleanup: Close the sidebar of the normal browsing window.
-  SidebarController.hide();
+  SidebarUI.hide();
 
   // Cleanup: Close the private window that remained open.
   await BrowserTestUtils.closeWindow(win);

browser/components/privatebrowsing/test/browser/browser_privatebrowsing_sidebar.js

@@ -12,7 +12,7 @@ function test() {
 
   // opens a sidebar
   function openSidebar(win) {
-    return win.SidebarController.show("viewBookmarksSidebar").then(() => win);
+    return win.SidebarUI.show("viewBookmarksSidebar").then(() => win);
   }
 
   let windowCache = [];

browser/components/sessionstore/SessionStore.sys.mjs

@@ -5728,7 +5728,7 @@ var SessionStoreInternal = {
         (sidebarBox.getAttribute("sidebarcommand") != aSidebar ||
           !sidebarBox.getAttribute("checked"))
       ) {
-        aWindow.SidebarController.showInitially(aSidebar);
+        aWindow.SidebarUI.showInitially(aSidebar);
       }
       // since resizing/moving a window brings it to the foreground,
       // we might want to re-focus the last focused window

browser/components/sidebar/browser-sidebar.js

@@ -3,11 +3,9 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /**
- * SidebarController handles logic such as toggling sidebar panels,
- * dynamically adding menubar menu items for the View -> Sidebar menu,
- * and provides APIs for sidebar extensions, etc.
+ * SidebarUI controls showing and hiding the browser sidebar.
  */
-var SidebarController = {
+var SidebarUI = {
   get sidebars() {
     if (this._sidebars) {
       return this._sidebars;
@@ -136,8 +134,8 @@ var SidebarController = {
     }
 
     if (this.sidebarRevampEnabled) {
-      await import("chrome://browser/content/sidebar/sidebar-main.mjs");
-      document.getElementById("sidebar-main").hidden = false;
+      await import("chrome://browser/content/sidebar/sidebar-launcher.mjs");
+      document.getElementById("sidebar-launcher").hidden = false;
       document.getElementById("sidebar-header").hidden = true;
     } else {
       this._switcherTarget.addEventListener("command", () => {
@@ -353,30 +351,30 @@ var SidebarController = {
     [...browser.children].forEach((node, i) => {
       node.style.order = i + 1;
     });
-    let sidebarMain = document.querySelector("sidebar-main");
+    let sidebarLauncher = document.querySelector("sidebar-launcher");
 
     if (!this._positionStart) {
-      // DOM ordering is:     sidebar-main |  sidebar-box  | splitter |   appcontent  |
-      // Want to display as:  |   appcontent  | splitter |  sidebar-box  | sidebar-main
-      // So we just swap box and appcontent ordering and move sidebar-main to the end
+      // DOM ordering is:     sidebar-launcher |  sidebar-box  | splitter |   appcontent  |
+      // Want to display as:  |   appcontent  | splitter |  sidebar-box  | sidebar-launcher
+      // So we just swap box and appcontent ordering and move sidebar-launcher to the end
       let appcontent = document.getElementById("appcontent");
       let boxOrdinal = this._box.style.order;
       this._box.style.order = appcontent.style.order;
 
       appcontent.style.order = boxOrdinal;
       // the launcher should be on the right of the sidebar-box
-      sidebarMain.style.order = parseInt(this._box.style.order) + 1;
+      sidebarLauncher.style.order = parseInt(this._box.style.order) + 1;
       // Indicate we've switched ordering to the box
       this._box.setAttribute("positionend", true);
-      sidebarMain.setAttribute("positionend", true);
+      sidebarLauncher.setAttribute("positionend", true);
     } else {
       this._box.removeAttribute("positionend");
-      sidebarMain.removeAttribute("positionend");
+      sidebarLauncher.removeAttribute("positionend");
     }
 
     this.hideSwitcherPanel();
 
-    let content = SidebarController.browser.contentWindow;
+    let content = SidebarUI.browser.contentWindow;
     if (content && content.updatePosition) {
       content.updatePosition();
     }
@@ -393,7 +391,7 @@ var SidebarController = {
     // If the opener had a sidebar, open the same sidebar in our window.
     // The opener can be the hidden window too, if we're coming from the state
     // where no windows are open, and the hidden window has no sidebar box.
-    let sourceUI = sourceWindow.SidebarController;
+    let sourceUI = sourceWindow.SidebarUI;
     if (!sourceUI || !sourceUI._box) {
       // no source UI or no _box means we also can't adopt the state.
       return false;
@@ -906,14 +904,14 @@ var SidebarController = {
 // Add getters related to the position here, since we will want them
 // available for both startDelayedLoad and init.
 XPCOMUtils.defineLazyPreferenceGetter(
-  SidebarController,
+  SidebarUI,
   "_positionStart",
-  SidebarController.POSITION_START_PREF,
+  SidebarUI.POSITION_START_PREF,
   true,
-  SidebarController.setPosition.bind(SidebarController)
+  SidebarUI.setPosition.bind(SidebarUI)
 );
 XPCOMUtils.defineLazyPreferenceGetter(
-  SidebarController,
+  SidebarUI,
   "sidebarRevampEnabled",
   "sidebar.revamp",
   false

browser/components/sidebar/jar.mn

@@ -4,8 +4,8 @@
 
 browser.jar:
     content/browser/sidebar/browser-sidebar.js
-    content/browser/sidebar/sidebar-main.css
-    content/browser/sidebar/sidebar-main.mjs
+    content/browser/sidebar/sidebar-launcher.css
+    content/browser/sidebar/sidebar-launcher.mjs
     content/browser/sidebar/sidebar-history.html
     content/browser/sidebar/sidebar-history.mjs
     content/browser/sidebar/sidebar-page.mjs

browser/components/sidebar/sidebar-launcher.mjs

@@ -13,10 +13,11 @@ import { MozLitElement } from "chrome://global/content/lit-utils.mjs";
 import "chrome://global/content/elements/moz-button.mjs";
 
 /**
- * Sidebar with expanded and collapsed states that provides entry points
- * to various sidebar panels and sidebar extensions.
+ * Vertical strip attached to the launcher that provides an entry point
+ * to various sidebar panels.
+ *
  */
-export default class SidebarMain extends MozLitElement {
+export default class SidebarLauncher extends MozLitElement {
   static properties = {
     topActions: { type: Array },
     extensionActions: { type: Array },
@@ -35,7 +36,7 @@ export default class SidebarMain extends MozLitElement {
       {
         icon: `url("chrome://browser/skin/insights.svg")`,
         view: null,
-        l10nId: "sidebar-main-insights",
+        l10nId: "sidebar-launcher-insights",
       },
     ];
     this.extensionActions = [];
@@ -57,8 +58,8 @@ export default class SidebarMain extends MozLitElement {
       },
     ];
 
-    this.selectedView = window.SidebarController.currentID;
-    this.open = window.SidebarController.isOpen;
+    this.selectedView = window.SidebarUI.currentID;
+    this.open = window.SidebarUI.isOpen;
   }
 
   connectedCallback() {
@@ -105,7 +106,7 @@ export default class SidebarMain extends MozLitElement {
   }
 
   setExtensionItems() {
-    this.extensionActions = window.SidebarController.getExtensions().map(
+    this.extensionActions = window.SidebarUI.getExtensions().map(
       ({ commandID, icon, label }) => ({
         tooltiptext: label,
         icon,
@@ -133,7 +134,7 @@ export default class SidebarMain extends MozLitElement {
 
   showView(e) {
     let view = e.target.getAttribute("view");
-    window.SidebarController.toggle(view);
+    window.SidebarUI.toggle(view);
   }
 
   buttonType(action) {
@@ -159,7 +160,7 @@ export default class SidebarMain extends MozLitElement {
     return html`
       <link
         rel="stylesheet"
-        href="chrome://browser/content/sidebar/sidebar-main.css"
+        href="chrome://browser/content/sidebar/sidebar-launcher.css"
       />
       <div class="wrapper">
         <div class="top-actions actions-list">
@@ -177,4 +178,4 @@ export default class SidebarMain extends MozLitElement {
     `;
   }
 }
-customElements.define("sidebar-main", SidebarMain);
+customElements.define("sidebar-launcher", SidebarLauncher);

browser/components/sidebar/sidebar.ftl

@@ -2,7 +2,7 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-sidebar-main-insights =
+sidebar-launcher-insights =
     .title = Insights
 
 ## Variables:

browser/components/sidebar/tests/browser/browser_extensions_sidebar.js

@@ -83,7 +83,7 @@ add_task(async function test_extension_sidebar_actions() {
   // await one "sidebar" message.
   const win = await BrowserTestUtils.openNewBrowserWindow();
   const { document } = win;
-  const sidebar = document.getElementById("sidebar-main");
+  const sidebar = document.getElementById("sidebar-launcher");
   ok(sidebar, "Sidebar is shown.");
 
   const extension = ExtensionTestUtils.loadExtension({ ...extData });
@@ -121,7 +121,7 @@ add_task(async function test_extension_sidebar_actions() {
   await sendMessage(extension, "set-panel", "1.html");
   const panelUrl = `moz-extension://${extension.uuid}/1.html`;
   await TestUtils.waitForCondition(() => {
-    const browser = SidebarController.browser.contentDocument.getElementById(
+    const browser = SidebarUI.browser.contentDocument.getElementById(
       "webext-panels-browser"
     );
     return browser.currentURI.spec === panelUrl;
@@ -144,7 +144,7 @@ add_task(async function test_open_new_window_after_install() {
 
   const win = await BrowserTestUtils.openNewBrowserWindow();
   const { document } = win;
-  const sidebar = document.getElementById("sidebar-main");
+  const sidebar = document.getElementById("sidebar-launcher");
   ok(sidebar, "Sidebar is shown.");
   await extension.awaitMessage("sidebar");
   is(
@@ -172,7 +172,7 @@ add_task(async function test_open_new_private_window_after_install() {
     private: true,
   });
   const { document } = privateWin;
-  const sidebar = document.getElementById("sidebar-main");
+  const sidebar = document.getElementById("sidebar-launcher");
   ok(sidebar, "Sidebar is shown.");
   await TestUtils.waitForCondition(
     () => sidebar.extensionButtons,

browser/components/syncedtabs/test/browser/browser_sidebar_syncedtabslist.js

@@ -91,28 +91,28 @@ function setupSyncedTabsStubs({
 async function testClean() {
   sinon.restore();
   await new Promise(resolve => {
-    window.SidebarController.browser.contentWindow.addEventListener(
+    window.SidebarUI.browser.contentWindow.addEventListener(
       "unload",
       function () {
         resolve();
       },
       { once: true }
     );
-    SidebarController.hide();
+    SidebarUI.hide();
   });
 }
 
 add_task(async function testSyncedTabsSidebarList() {
-  await SidebarController.show("viewTabsSidebar");
+  await SidebarUI.show("viewTabsSidebar");
 
   Assert.equal(
-    SidebarController.currentID,
+    SidebarUI.currentID,
     "viewTabsSidebar",
     "Sidebar should have SyncedTabs loaded"
   );
 
   let syncedTabsDeckComponent =
-    SidebarController.browser.contentWindow.syncedTabsDeckComponent;
+    SidebarUI.browser.contentWindow.syncedTabsDeckComponent;
 
   Assert.ok(syncedTabsDeckComponent, "component exists");
 
@@ -172,9 +172,9 @@ add_task(async function testSyncedTabsSidebarList() {
 add_task(testClean);
 
 add_task(async function testSyncedTabsSidebarFilteredList() {
-  await SidebarController.show("viewTabsSidebar");
+  await SidebarUI.show("viewTabsSidebar");
   let syncedTabsDeckComponent =
-    window.SidebarController.browser.contentWindow.syncedTabsDeckComponent;
+    window.SidebarUI.browser.contentWindow.syncedTabsDeckComponent;
 
   Assert.ok(syncedTabsDeckComponent, "component exists");
 
@@ -244,9 +244,9 @@ add_task(async function testSyncedTabsSidebarFilteredList() {
 add_task(testClean);
 
 add_task(async function testSyncedTabsSidebarStatus() {
-  await SidebarController.show("viewTabsSidebar");
+  await SidebarUI.show("viewTabsSidebar");
   let syncedTabsDeckComponent =
-    window.SidebarController.browser.contentWindow.syncedTabsDeckComponent;
+    window.SidebarUI.browser.contentWindow.syncedTabsDeckComponent;
 
   Assert.ok(syncedTabsDeckComponent, "component exists");
 
@@ -377,9 +377,9 @@ add_task(async function testSyncedTabsSidebarStatus() {
 add_task(testClean);
 
 add_task(async function testSyncedTabsSidebarContextMenu() {
-  await SidebarController.show("viewTabsSidebar");
+  await SidebarUI.show("viewTabsSidebar");
   let syncedTabsDeckComponent =
-    window.SidebarController.browser.contentWindow.syncedTabsDeckComponent;
+    window.SidebarUI.browser.contentWindow.syncedTabsDeckComponent;
 
   Assert.ok(syncedTabsDeckComponent, "component exists");
 
@@ -547,8 +547,7 @@ async function testContextMenu(
 
   let chromeWindow = triggerElement.ownerGlobal.top;
   let rect = triggerElement.getBoundingClientRect();
-  let contentRect =
-    chromeWindow.SidebarController.browser.getBoundingClientRect();
+  let contentRect = chromeWindow.SidebarUI.browser.getBoundingClientRect();
   // The offsets in `rect` are relative to the content window, but
   // `synthesizeMouseAtPoint` calls `nsIDOMWindowUtils.sendMouseEvent`,
   // which interprets the offsets relative to the containing *chrome* window.

browser/components/touchbar/MacTouchBar.sys.mjs

@@ -134,7 +134,7 @@ var gBuiltInInputs = {
     type: kInputTypes.BUTTON,
     callback: () => {
       let win = lazy.BrowserWindowTracker.getTopWindow();
-      win.SidebarController.toggle();
+      win.SidebarUI.toggle();
     },
   },
   AddBookmark: {

browser/modules/test/browser/browser_UsageTelemetry_interaction.js

@@ -590,7 +590,7 @@ add_task(async function webextension() {
 
     // Clear the last opened ID so if this test runs again the sidebar won't
     // automatically open when the extension is installed.
-    window.SidebarController.lastOpenedId = null;
+    window.SidebarUI.lastOpenedId = null;
 
     // The second should retain its ID.
     click("random_addon2_example_com-browser-action");

testing/mochitest/tests/browser/browser_waitForFocus.js

@@ -103,12 +103,12 @@ add_task(async function () {
 // Tests focusing the sidebar, which is in a parent process subframe
 // and then switching the focus to another window.
 add_task(async function () {
-  await SidebarController.show("viewBookmarksSidebar");
+  await SidebarUI.show("viewBookmarksSidebar");
 
   gURLBar.focus();
 
   // Focus the sidebar.
-  await SimpleTest.promiseFocus(SidebarController.browser);
+  await SimpleTest.promiseFocus(SidebarUI.browser);
   is(
     document.activeElement,
     document.getElementById("sidebar"),
@@ -120,7 +120,7 @@ add_task(async function () {
   );
 
   // Focus the sidebar again, which should cause no change.
-  await SimpleTest.promiseFocus(SidebarController.browser);
+  await SimpleTest.promiseFocus(SidebarUI.browser);
   is(
     document.activeElement,
     document.getElementById("sidebar"),
@@ -156,5 +156,5 @@ add_task(async function () {
   );
 
   await BrowserTestUtils.closeWindow(window2);
-  await SidebarController.hide();
+  await SidebarUI.hide();
 });

toolkit/components/extensions/ExtensionShortcuts.sys.mjs

@@ -449,7 +449,7 @@ export class ExtensionShortcuts {
     }
     doc.documentElement.appendChild(keyset);
     if (sidebarKey) {
-      window.SidebarController.updateShortcut({ keyId: sidebarKey.id });
+      window.SidebarUI.updateShortcut({ keyId: sidebarKey.id });
     }
     this.keysetsMap.set(window, keyset);
   }

toolkit/components/extensions/test/browser/browser_ext_themes_getCurrent_differentExt.js

@@ -139,9 +139,7 @@ add_task(async function test_getcurrent_privateBrowsing() {
     "resource://gre/modules/ExtensionCommon.sys.mjs"
   );
   const { makeWidgetId } = ExtensionCommon;
-  privateWin.SidebarController.show(
-    `${makeWidgetId(extension.id)}-sidebar-action`
-  );
+  privateWin.SidebarUI.show(`${makeWidgetId(extension.id)}-sidebar-action`);
 
   let imageLoaded = extension.awaitMessage("theme-image");
   Assert.deepEqual(await imageLoaded, { success: true }, "theme image loaded");

toolkit/components/extensions/test/browser/browser_ext_themes_sidebars.js

@@ -17,7 +17,7 @@ async function test_sidebar_theme(theme, isBrightText) {
 
   const sidebarBox = document.getElementById("sidebar-box");
   const browserRoot = document.documentElement;
-  const content = SidebarController.browser.contentWindow;
+  const content = SidebarUI.browser.contentWindow;
   const root = content.document.documentElement;
 
   ok(
@@ -184,7 +184,7 @@ add_task(async function test_support_sidebar_colors() {
   for (let command of ["viewBookmarksSidebar", "viewHistorySidebar"]) {
     info("Executing command: " + command);
 
-    await SidebarController.show(command);
+    await SidebarUI.show(command);
 
     await test_sidebar_theme(
       {
@@ -263,7 +263,7 @@ add_task(async function test_support_sidebar_border_color() {
       "Sidebar splitter should be colored properly"
     );
 
-    SidebarController.reversePosition();
+    SidebarUI.reversePosition();
 
     is(
       sidebarSplitterCS.borderInlineStartColor,
@@ -271,7 +271,7 @@ add_task(async function test_support_sidebar_border_color() {
       "Sidebar splitter should be colored properly after switching sides"
     );
 
-    SidebarController.reversePosition();
+    SidebarUI.reversePosition();
   }
 
   await extension.unload();

toolkit/content/tests/browser/browser_bug1693577.js

@@ -12,7 +12,7 @@ add_task(async function test_search_input_popupshowing() {
   let sidebar = document.getElementById("sidebar");
 
   let loadPromise = BrowserTestUtils.waitForEvent(sidebar, "load", true);
-  SidebarController.toggle("viewBookmarksSidebar");
+  SidebarUI.toggle("viewBookmarksSidebar");
   await loadPromise;
 
   let inputField =
@@ -45,5 +45,5 @@ add_task(async function test_search_input_popupshowing() {
   popup.hidePopup();
   await popuphidden;
 
-  SidebarController.toggle("viewBookmarksSidebar");
+  SidebarUI.toggle("viewBookmarksSidebar");
 });