Bug 1907146 - Ensure SearchModeSwitcher detects searchmode changes. r=urlbar-reviewers,mak

Differential Revision: https://phabricator.services.mozilla.com/D216232

browser/components/urlbar/UrlbarInput.sys.mjs

@@ -112,7 +112,6 @@ export class UrlbarInput {
       eventTelemetryCategory: options.eventTelemetryCategory,
     });
     this.view = new lazy.UrlbarView(this);
-    this.searchModeSwitcher = new lazy.SearchModeSwitcher(this);
     this.valueIsTyped = false;
     this.formHistoryName = DEFAULT_FORM_HISTORY_NAME;
     this.lastQueryContextPromise = Promise.resolve();
@@ -262,6 +261,7 @@ export class UrlbarInput {
     this._initCopyCutController();
     this._initPasteAndGo();
     this._initStripOnShare();
+    this.searchModeSwitcher = new lazy.SearchModeSwitcher(this);
 
     // Tracks IME composition.
     this._compositionState = lazy.UrlbarUtils.COMPOSITION.NONE;
@@ -1885,7 +1885,6 @@ export class UrlbarInput {
     // Enter search mode if the browser is selected.
     if (browser == this.window.gBrowser.selectedBrowser) {
       this._updateSearchModeUI(searchMode);
-      this.inputField.dispatchEvent(new CustomEvent("searchmodechanged"));
       if (searchMode) {
         // Set userTypedValue to the query string so that it's properly restored
         // when switching back to the current tab and across sessions.
@@ -1978,6 +1977,7 @@ export class UrlbarInput {
 
   set searchMode(searchMode) {
     this.setSearchMode(searchMode, this.window.gBrowser.selectedBrowser);
+    this.searchModeSwitcher.onSearchModeChanged();
   }
 
   getBrowserState(browser) {