Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 895 insertions, 0 deletions

diff --git a/browser/components/search/content/searchbar.js b/browser/components/search/content/searchbar.js
new file mode 100644
index 0000000000..e8b2dd5045
--- /dev/null
+++ b/browser/components/search/content/searchbar.js
@@ -0,0 +1,895 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * 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/. */
+
+"use strict";
+
+/* globals XULCommandEvent */
+
+// This is loaded into chrome windows with the subscript loader. Wrap in
+// a block to prevent accidentally leaking globals onto `window`.
+{
+  const lazy = {};
+
+  ChromeUtils.defineESModuleGetters(lazy, {
+    FormHistory: "resource://gre/modules/FormHistory.sys.mjs",
+    SearchSuggestionController:
+      "resource://gre/modules/SearchSuggestionController.sys.mjs",
+  });
+
+  /**
+   * Defines the search bar element.
+   */
+  class MozSearchbar extends MozXULElement {
+    static get inheritedAttributes() {
+      return {
+        ".searchbar-textbox":
+          "disabled,disableautocomplete,searchengine,src,newlines",
+        ".searchbar-search-button": "addengines",
+      };
+    }
+
+    static get markup() {
+      return `
+        <stringbundle src="chrome://browser/locale/search.properties"></stringbundle>
+        <hbox class="searchbar-search-button" data-l10n-id="searchbar-icon">
+          <image class="searchbar-search-icon"></image>
+          <image class="searchbar-search-icon-overlay"></image>
+        </hbox>
+        <html:input class="searchbar-textbox" is="autocomplete-input" type="search" data-l10n-id="searchbar-input" autocompletepopup="PopupSearchAutoComplete" autocompletesearch="search-autocomplete" autocompletesearchparam="searchbar-history" maxrows="10" completeselectedindex="true" minresultsforpopup="0"/>
+        <menupopup class="textbox-contextmenu"></menupopup>
+        <hbox class="search-go-container" align="center">
+          <image class="search-go-button urlbar-icon" hidden="true" onclick="handleSearchCommand(event);" data-l10n-id="searchbar-submit"></image>
+        </hbox>
+      `;
+    }
+
+    constructor() {
+      super();
+
+      MozXULElement.insertFTLIfNeeded("browser/search.ftl");
+
+      this.destroy = this.destroy.bind(this);
+      this._setupEventListeners();
+      let searchbar = this;
+      this.observer = {
+        observe(aEngine, aTopic, aVerb) {
+          if (
+            aTopic == "browser-search-engine-modified" ||
+            (aTopic == "browser-search-service" && aVerb == "init-complete")
+          ) {
+            // Make sure the engine list is refetched next time it's needed
+            searchbar._engines = null;
+
+            // Update the popup header and update the display after any modification.
+            searchbar._textbox.popup.updateHeader();
+            searchbar.updateDisplay();
+          }
+        },
+        QueryInterface: ChromeUtils.generateQI(["nsIObserver"]),
+      };
+
+      this._ignoreFocus = false;
+      this._engines = null;
+      this.telemetrySelectedIndex = -1;
+    }
+
+    connectedCallback() {
+      // Don't initialize if this isn't going to be visible
+      if (this.closest("#BrowserToolbarPalette")) {
+        return;
+      }
+
+      this.appendChild(this.constructor.fragment);
+      this.initializeAttributeInheritance();
+
+      // Don't go further if in Customize mode.
+      if (this.parentNode.parentNode.localName == "toolbarpaletteitem") {
+        return;
+      }
+
+      // Ensure we get persisted widths back, if we've been in the palette:
+      let storedWidth = Services.xulStore.getValue(
+        document.documentURI,
+        this.parentNode.id,
+        "width"
+      );
+      if (storedWidth) {
+        this.parentNode.setAttribute("width", storedWidth);
+        this.parentNode.style.width = storedWidth + "px";
+      }
+
+      this._stringBundle = this.querySelector("stringbundle");
+      this._textbox = this.querySelector(".searchbar-textbox");
+
+      this._menupopup = null;
+      this._pasteAndSearchMenuItem = null;
+
+      this._setupTextboxEventListeners();
+      this._initTextbox();
+
+      window.addEventListener("unload", this.destroy);
+
+      Services.obs.addObserver(this.observer, "browser-search-engine-modified");
+      Services.obs.addObserver(this.observer, "browser-search-service");
+
+      this._initialized = true;
+
+      (window.delayedStartupPromise || Promise.resolve()).then(() => {
+        window.requestIdleCallback(() => {
+          Services.search
+            .init()
+            .then(aStatus => {
+              // Bail out if the binding's been destroyed
+              if (!this._initialized) {
+                return;
+              }
+
+              // Refresh the display (updating icon, etc)
+              this.updateDisplay();
+              BrowserSearch.updateOpenSearchBadge();
+            })
+            .catch(status =>
+              console.error(
+                "Cannot initialize search service, bailing out: " + status
+              )
+            );
+        });
+      });
+
+      // Wait until the popupshowing event to avoid forcing immediate
+      // attachment of the search-one-offs binding.
+      this.textbox.popup.addEventListener(
+        "popupshowing",
+        () => {
+          let oneOffButtons = this.textbox.popup.oneOffButtons;
+          // Some accessibility tests create their own <searchbar> that doesn't
+          // use the popup binding below, so null-check oneOffButtons.
+          if (oneOffButtons) {
+            oneOffButtons.telemetryOrigin = "searchbar";
+            // Set .textbox first, since the popup setter will cause
+            // a _rebuild call that uses it.
+            oneOffButtons.textbox = this.textbox;
+            oneOffButtons.popup = this.textbox.popup;
+          }
+        },
+        { capture: true, once: true }
+      );
+    }
+
+    async getEngines() {
+      if (!this._engines) {
+        this._engines = await Services.search.getVisibleEngines();
+      }
+      return this._engines;
+    }
+
+    set currentEngine(val) {
+      if (PrivateBrowsingUtils.isWindowPrivate(window)) {
+        Services.search.setDefaultPrivate(
+          val,
+          Ci.nsISearchService.CHANGE_REASON_USER_SEARCHBAR
+        );
+      } else {
+        Services.search.setDefault(
+          val,
+          Ci.nsISearchService.CHANGE_REASON_USER_SEARCHBAR
+        );
+      }
+    }
+
+    get currentEngine() {
+      let currentEngine;
+      if (PrivateBrowsingUtils.isWindowPrivate(window)) {
+        currentEngine = Services.search.defaultPrivateEngine;
+      } else {
+        currentEngine = Services.search.defaultEngine;
+      }
+      // Return a dummy engine if there is no currentEngine
+      return currentEngine || { name: "", uri: null };
+    }
+
+    /**
+     * textbox is used by sanitize.js to clear the undo history when
+     * clearing form information.
+     *
+     * @returns {HTMLInputElement}
+     */
+    get textbox() {
+      return this._textbox;
+    }
+
+    set value(val) {
+      this._textbox.value = val;
+    }
+
+    get value() {
+      return this._textbox.value;
+    }
+
+    destroy() {
+      if (this._initialized) {
+        this._initialized = false;
+        window.removeEventListener("unload", this.destroy);
+
+        Services.obs.removeObserver(
+          this.observer,
+          "browser-search-engine-modified"
+        );
+        Services.obs.removeObserver(this.observer, "browser-search-service");
+      }
+
+      // Make sure to break the cycle from _textbox to us. Otherwise we leak
+      // the world. But make sure it's actually pointing to us.
+      // Also make sure the textbox has ever been constructed, otherwise the
+      // _textbox getter will cause the textbox constructor to run, add an
+      // observer, and leak the world too.
+      if (
+        this._textbox &&
+        this._textbox.mController &&
+        this._textbox.mController.input &&
+        this._textbox.mController.input.wrappedJSObject ==
+          this.nsIAutocompleteInput
+      ) {
+        this._textbox.mController.input = null;
+      }
+    }
+
+    focus() {
+      this._textbox.focus();
+    }
+
+    select() {
+      this._textbox.select();
+    }
+
+    setIcon(element, uri) {
+      element.setAttribute("src", uri);
+    }
+
+    updateDisplay() {
+      this._textbox.title = this._stringBundle.getFormattedString("searchtip", [
+        this.currentEngine.name,
+      ]);
+    }
+
+    updateGoButtonVisibility() {
+      this.querySelector(".search-go-button").hidden = !this._textbox.value;
+    }
+
+    openSuggestionsPanel(aShowOnlySettingsIfEmpty) {
+      if (this._textbox.open) {
+        return;
+      }
+
+      this._textbox.showHistoryPopup();
+
+      if (this._textbox.value) {
+        // showHistoryPopup does a startSearch("") call, ensure the
+        // controller handles the text from the input box instead:
+        this._textbox.mController.handleText();
+      } else if (aShowOnlySettingsIfEmpty) {
+        this.setAttribute("showonlysettings", "true");
+      }
+    }
+
+    async selectEngine(aEvent, isNextEngine) {
+      // Stop event bubbling now, because the rest of this method is async.
+      aEvent.preventDefault();
+      aEvent.stopPropagation();
+
+      // Find the new index.
+      let engines = await this.getEngines();
+      let currentName = this.currentEngine.name;
+      let newIndex = -1;
+      let lastIndex = engines.length - 1;
+      for (let i = lastIndex; i >= 0; --i) {
+        if (engines[i].name == currentName) {
+          // Check bounds to cycle through the list of engines continuously.
+          if (!isNextEngine && i == 0) {
+            newIndex = lastIndex;
+          } else if (isNextEngine && i == lastIndex) {
+            newIndex = 0;
+          } else {
+            newIndex = i + (isNextEngine ? 1 : -1);
+          }
+          break;
+        }
+      }
+
+      this.currentEngine = engines[newIndex];
+
+      this.openSuggestionsPanel();
+    }
+
+    handleSearchCommand(aEvent, aEngine, aForceNewTab) {
+      let where = "current";
+      let params;
+      const newTabPref = Services.prefs.getBoolPref("browser.search.openintab");
+
+      // Open ctrl/cmd clicks on one-off buttons in a new background tab.
+      if (
+        aEvent &&
+        aEvent.originalTarget.classList.contains("search-go-button")
+      ) {
+        if (aEvent.button == 2) {
+          return;
+        }
+        where = whereToOpenLink(aEvent, false, true);
+        if (
+          newTabPref &&
+          !aEvent.altKey &&
+          !aEvent.getModifierState("AltGraph") &&
+          where == "current" &&
+          !gBrowser.selectedTab.isEmpty
+        ) {
+          where = "tab";
+        }
+      } else if (aForceNewTab) {
+        where = "tab";
+        if (Services.prefs.getBoolPref("browser.tabs.loadInBackground")) {
+          where += "-background";
+        }
+      } else {
+        if (
+          (KeyboardEvent.isInstance(aEvent) &&
+            (aEvent.altKey || aEvent.getModifierState("AltGraph"))) ^
+            newTabPref &&
+          !gBrowser.selectedTab.isEmpty
+        ) {
+          where = "tab";
+        }
+        if (
+          MouseEvent.isInstance(aEvent) &&
+          (aEvent.button == 1 || aEvent.getModifierState("Accel"))
+        ) {
+          where = "tab";
+          params = {
+            inBackground: true,
+          };
+        }
+      }
+      this.handleSearchCommandWhere(aEvent, aEngine, where, params);
+    }
+
+    handleSearchCommandWhere(aEvent, aEngine, aWhere, aParams = {}) {
+      let textBox = this._textbox;
+      let textValue = textBox.value;
+
+      let selectedIndex = this.telemetrySelectedIndex;
+      let isOneOff = false;
+
+      BrowserSearchTelemetry.recordSearchSuggestionSelectionMethod(
+        aEvent,
+        "searchbar",
+        selectedIndex
+      );
+
+      if (selectedIndex == -1) {
+        isOneOff =
+          this.textbox.popup.oneOffButtons.eventTargetIsAOneOff(aEvent);
+      }
+
+      if (aWhere === "tab" && !!aParams.inBackground) {
+        // Keep the focus in the search bar.
+        aParams.avoidBrowserFocus = true;
+      } else if (
+        aWhere !== "window" &&
+        aEvent.keyCode === KeyEvent.DOM_VK_RETURN
+      ) {
+        // Move the focus to the selected browser when keyup the Enter.
+        aParams.avoidBrowserFocus = true;
+        this._needBrowserFocusAtEnterKeyUp = true;
+      }
+
+      // This is a one-off search only if oneOffRecorded is true.
+      this.doSearch(textValue, aWhere, aEngine, aParams, isOneOff);
+    }
+
+    doSearch(aData, aWhere, aEngine, aParams, isOneOff = false) {
+      let textBox = this._textbox;
+      let engine = aEngine || this.currentEngine;
+
+      // Save the current value in the form history
+      if (
+        aData &&
+        !PrivateBrowsingUtils.isWindowPrivate(window) &&
+        lazy.FormHistory.enabled &&
+        aData.length <=
+          lazy.SearchSuggestionController.SEARCH_HISTORY_MAX_VALUE_LENGTH
+      ) {
+        lazy.FormHistory.update({
+          op: "bump",
+          fieldname: textBox.getAttribute("autocompletesearchparam"),
+          value: aData,
+          source: engine.name,
+        }).catch(error =>
+          console.error(
+            "Saving search to form history failed: " + error.message
+          )
+        );
+      }
+
+      let submission = engine.getSubmission(aData, null, "searchbar");
+
+      // If we hit here, we come either from a one-off, a plain search or a suggestion.
+      const details = {
+        isOneOff,
+        isSuggestion: !isOneOff && this.telemetrySelectedIndex != -1,
+        url: submission.uri,
+      };
+
+      this.telemetrySelectedIndex = -1;
+
+      BrowserSearchTelemetry.recordSearch(
+        gBrowser.selectedBrowser,
+        engine,
+        "searchbar",
+        details
+      );
+      // null parameter below specifies HTML response for search
+      let params = {
+        postData: submission.postData,
+        globalHistoryOptions: {
+          triggeringSearchEngine: engine.name,
+        },
+      };
+      if (aParams) {
+        for (let key in aParams) {
+          params[key] = aParams[key];
+        }
+      }
+      openTrustedLinkIn(submission.uri.spec, aWhere, params);
+    }
+
+    disconnectedCallback() {
+      this.destroy();
+      while (this.firstChild) {
+        this.firstChild.remove();
+      }
+    }
+
+    /**
+     * Determines if we should select all the text in the searchbar based on the
+     * searchbar state, and whether the selection is empty.
+     */
+    _maybeSelectAll() {
+      if (
+        !this._preventClickSelectsAll &&
+        document.activeElement == this._textbox &&
+        this._textbox.selectionStart == this._textbox.selectionEnd
+      ) {
+        this.select();
+      }
+    }
+
+    _setupEventListeners() {
+      this.addEventListener("click", event => {
+        this._maybeSelectAll();
+      });
+
+      this.addEventListener(
+        "DOMMouseScroll",
+        event => {
+          if (event.getModifierState("Accel")) {
+            this.selectEngine(event, event.detail > 0);
+          }
+        },
+        true
+      );
+
+      this.addEventListener("input", event => {
+        this.updateGoButtonVisibility();
+      });
+
+      this.addEventListener("drop", event => {
+        this.updateGoButtonVisibility();
+      });
+
+      this.addEventListener(
+        "blur",
+        event => {
+          // Reset the flag since we can't capture enter keyup event if the event happens
+          // after moving the focus.
+          this._needBrowserFocusAtEnterKeyUp = false;
+
+          // If the input field is still focused then a different window has
+          // received focus, ignore the next focus event.
+          this._ignoreFocus = document.activeElement == this._textbox;
+        },
+        true
+      );
+
+      this.addEventListener(
+        "focus",
+        event => {
+          // Speculatively connect to the current engine's search URI (and
+          // suggest URI, if different) to reduce request latency
+          this.currentEngine.speculativeConnect({
+            window,
+            originAttributes: gBrowser.contentPrincipal.originAttributes,
+          });
+
+          if (this._ignoreFocus) {
+            // This window has been re-focused, don't show the suggestions
+            this._ignoreFocus = false;
+            return;
+          }
+
+          // Don't open the suggestions if there is no text in the textbox.
+          if (!this._textbox.value) {
+            return;
+          }
+
+          // Don't open the suggestions if the mouse was used to focus the
+          // textbox, that will be taken care of in the click handler.
+          if (
+            Services.focus.getLastFocusMethod(window) &
+            Services.focus.FLAG_BYMOUSE
+          ) {
+            return;
+          }
+
+          this.openSuggestionsPanel();
+        },
+        true
+      );
+
+      this.addEventListener("mousedown", event => {
+        this._preventClickSelectsAll = this._textbox.focused;
+        // Ignore right clicks
+        if (event.button != 0) {
+          return;
+        }
+
+        // Ignore clicks on the search go button.
+        if (event.originalTarget.classList.contains("search-go-button")) {
+          return;
+        }
+
+        // Ignore clicks on menu items in the input's context menu.
+        if (event.originalTarget.localName == "menuitem") {
+          return;
+        }
+
+        let isIconClick = event.originalTarget.classList.contains(
+          "searchbar-search-button"
+        );
+
+        // Hide popup when icon is clicked while popup is open
+        if (isIconClick && this.textbox.popup.popupOpen) {
+          this.textbox.popup.closePopup();
+        } else if (isIconClick || this._textbox.value) {
+          // Open the suggestions whenever clicking on the search icon or if there
+          // is text in the textbox.
+          this.openSuggestionsPanel(true);
+        }
+      });
+    }
+
+    _setupTextboxEventListeners() {
+      this.textbox.addEventListener("input", event => {
+        this.textbox.popup.removeAttribute("showonlysettings");
+      });
+
+      this.textbox.addEventListener("dragover", event => {
+        let types = event.dataTransfer.types;
+        if (
+          types.includes("text/plain") ||
+          types.includes("text/x-moz-text-internal")
+        ) {
+          event.preventDefault();
+        }
+      });
+
+      this.textbox.addEventListener("drop", event => {
+        let dataTransfer = event.dataTransfer;
+        let data = dataTransfer.getData("text/plain");
+        if (!data) {
+          data = dataTransfer.getData("text/x-moz-text-internal");
+        }
+        if (data) {
+          event.preventDefault();
+          this.textbox.value = data;
+          this.openSuggestionsPanel();
+        }
+      });
+
+      this.textbox.addEventListener("contextmenu", event => {
+        if (!this._menupopup) {
+          this._buildContextMenu();
+        }
+
+        this._textbox.closePopup();
+
+        // Make sure the context menu isn't opened via keyboard shortcut. Check for text selection
+        // before updating the state of any menu items.
+        if (event.button) {
+          this._maybeSelectAll();
+        }
+
+        // Update disabled state of menu items
+        for (let item of this._menupopup.querySelectorAll("menuitem[cmd]")) {
+          let command = item.getAttribute("cmd");
+          let controller =
+            document.commandDispatcher.getControllerForCommand(command);
+          item.disabled = !controller.isCommandEnabled(command);
+        }
+
+        let pasteEnabled = document.commandDispatcher
+          .getControllerForCommand("cmd_paste")
+          .isCommandEnabled("cmd_paste");
+        this._pasteAndSearchMenuItem.disabled = !pasteEnabled;
+
+        this._menupopup.openPopupAtScreen(event.screenX, event.screenY, true);
+
+        event.preventDefault();
+      });
+    }
+
+    _initTextbox() {
+      if (this.parentNode.parentNode.localName == "toolbarpaletteitem") {
+        return;
+      }
+
+      this.setAttribute("role", "combobox");
+      this.setAttribute("aria-owns", this.textbox.popup.id);
+
+      // This overrides the searchParam property in autocomplete.xml. We're
+      // hijacking this property as a vehicle for delivering the privacy
+      // information about the window into the guts of nsSearchSuggestions.
+      // Note that the setter is the same as the parent. We were not sure whether
+      // we can override just the getter. If that proves to be the case, the setter
+      // can be removed.
+      Object.defineProperty(this.textbox, "searchParam", {
+        get() {
+          return (
+            this.getAttribute("autocompletesearchparam") +
+            (PrivateBrowsingUtils.isWindowPrivate(window) ? "|private" : "")
+          );
+        },
+        set(val) {
+          this.setAttribute("autocompletesearchparam", val);
+        },
+      });
+
+      Object.defineProperty(this.textbox, "selectedButton", {
+        get() {
+          return this.popup.oneOffButtons.selectedButton;
+        },
+        set(val) {
+          this.popup.oneOffButtons.selectedButton = val;
+        },
+      });
+
+      // This is implemented so that when textbox.value is set directly (e.g.,
+      // by tests), the one-off query is updated.
+      this.textbox.onBeforeValueSet = aValue => {
+        if (this.textbox.popup._oneOffButtons) {
+          this.textbox.popup.oneOffButtons.query = aValue;
+        }
+        return aValue;
+      };
+
+      // Returns true if the event is handled by us, false otherwise.
+      this.textbox.onBeforeHandleKeyDown = aEvent => {
+        if (aEvent.getModifierState("Accel")) {
+          if (
+            aEvent.keyCode == KeyEvent.DOM_VK_DOWN ||
+            aEvent.keyCode == KeyEvent.DOM_VK_UP
+          ) {
+            this.selectEngine(aEvent, aEvent.keyCode == KeyEvent.DOM_VK_DOWN);
+            return true;
+          }
+          return false;
+        }
+
+        if (
+          (AppConstants.platform == "macosx" &&
+            aEvent.keyCode == KeyEvent.DOM_VK_F4) ||
+          (aEvent.getModifierState("Alt") &&
+            (aEvent.keyCode == KeyEvent.DOM_VK_DOWN ||
+              aEvent.keyCode == KeyEvent.DOM_VK_UP))
+        ) {
+          if (!this.textbox.openSearch()) {
+            aEvent.preventDefault();
+            aEvent.stopPropagation();
+            return true;
+          }
+        }
+
+        let popup = this.textbox.popup;
+        if (popup.popupOpen) {
+          let suggestionsHidden =
+            popup.richlistbox.getAttribute("collapsed") == "true";
+          let numItems = suggestionsHidden ? 0 : popup.matchCount;
+          return popup.oneOffButtons.handleKeyDown(aEvent, numItems, true);
+        } else if (aEvent.keyCode == KeyEvent.DOM_VK_ESCAPE) {
+          if (this.textbox.editor.canUndo) {
+            this.textbox.editor.undoAll();
+          } else {
+            this.textbox.select();
+          }
+          return true;
+        }
+        return false;
+      };
+
+      // This method overrides the autocomplete binding's openPopup (essentially
+      // duplicating the logic from the autocomplete popup binding's
+      // openAutocompletePopup method), modifying it so that the popup is aligned with
+      // the inner textbox, but sized to not extend beyond the search bar border.
+      this.textbox.openPopup = () => {
+        // Entering customization mode after the search bar had focus causes
+        // the popup to appear again, due to focus returning after the
+        // hamburger panel closes. Don't open in that spurious event.
+        if (document.documentElement.getAttribute("customizing") == "true") {
+          return;
+        }
+
+        let popup = this.textbox.popup;
+        if (!popup.mPopupOpen) {
+          // Initially the panel used for the searchbar (PopupSearchAutoComplete
+          // in browser.xhtml) is hidden to avoid impacting startup / new
+          // window performance. The base binding's openPopup would normally
+          // call the overriden openAutocompletePopup in
+          // browser-search-autocomplete-result-popup binding to unhide the popup,
+          // but since we're overriding openPopup we need to unhide the panel
+          // ourselves.
+          popup.hidden = false;
+
+          // Don't roll up on mouse click in the anchor for the search UI.
+          if (popup.id == "PopupSearchAutoComplete") {
+            popup.setAttribute("norolluponanchor", "true");
+          }
+
+          popup.mInput = this.textbox;
+          // clear any previous selection, see bugs 400671 and 488357
+          popup.selectedIndex = -1;
+
+          // Ensure the panel has a meaningful initial size and doesn't grow
+          // unconditionally.
+          let { width } = window.windowUtils.getBoundsWithoutFlushing(this);
+          if (popup.oneOffButtons) {
+            // We have a min-width rule on search-panel-one-offs to show at
+            // least 4 buttons, so take that into account here.
+            width = Math.max(width, popup.oneOffButtons.buttonWidth * 4);
+          }
+
+          popup.style.setProperty("--panel-width", width + "px");
+          popup._invalidate();
+          popup.openPopup(this, "after_start");
+        }
+      };
+
+      this.textbox.openSearch = () => {
+        if (!this.textbox.popupOpen) {
+          this.openSuggestionsPanel();
+          return false;
+        }
+        return true;
+      };
+
+      this.textbox.handleEnter = event => {
+        // Toggle the open state of the add-engine menu button if it's
+        // selected.  We're using handleEnter for this instead of listening
+        // for the command event because a command event isn't fired.
+        if (
+          this.textbox.selectedButton &&
+          this.textbox.selectedButton.getAttribute("anonid") ==
+            "addengine-menu-button"
+        ) {
+          this.textbox.selectedButton.open = !this.textbox.selectedButton.open;
+          return true;
+        }
+        // Otherwise, "call super": do what the autocomplete binding's
+        // handleEnter implementation does.
+        return this.textbox.mController.handleEnter(false, event || null);
+      };
+
+      // override |onTextEntered| in autocomplete.xml
+      this.textbox.onTextEntered = event => {
+        this.textbox.editor.clearUndoRedo();
+
+        let engine;
+        let oneOff = this.textbox.selectedButton;
+        if (oneOff) {
+          if (!oneOff.engine) {
+            oneOff.doCommand();
+            return;
+          }
+          engine = oneOff.engine;
+        }
+        if (this.textbox.popupSelectedIndex != -1) {
+          this.telemetrySelectedIndex = this.textbox.popupSelectedIndex;
+          this.textbox.popupSelectedIndex = -1;
+        }
+        this.handleSearchCommand(event, engine);
+      };
+
+      this.textbox.onbeforeinput = event => {
+        if (event.data && this._needBrowserFocusAtEnterKeyUp) {
+          // Ignore char key input while processing enter key.
+          event.preventDefault();
+        }
+      };
+
+      this.textbox.onkeyup = event => {
+        // Pressing Enter key while pressing Meta key, and next, even when
+        // releasing Enter key before releasing Meta key, the keyup event is not
+        // fired. Therefore, if Enter keydown is detecting, continue the post
+        // processing for Enter key when any keyup event is detected.
+        if (this._needBrowserFocusAtEnterKeyUp) {
+          this._needBrowserFocusAtEnterKeyUp = false;
+          gBrowser.selectedBrowser.focus();
+        }
+      };
+    }
+
+    _buildContextMenu() {
+      const raw = `
+        <menuitem data-l10n-id="text-action-undo" cmd="cmd_undo"/>
+        <menuitem data-l10n-id="text-action-redo" cmd="cmd_redo"/>
+        <menuseparator/>
+        <menuitem data-l10n-id="text-action-cut" cmd="cmd_cut"/>
+        <menuitem data-l10n-id="text-action-copy" cmd="cmd_copy"/>
+        <menuitem data-l10n-id="text-action-paste" cmd="cmd_paste"/>
+        <menuitem class="searchbar-paste-and-search"/>
+        <menuitem data-l10n-id="text-action-delete" cmd="cmd_delete"/>
+        <menuitem data-l10n-id="text-action-select-all" cmd="cmd_selectAll"/>
+        <menuseparator/>
+        <menuitem class="searchbar-clear-history"/>
+      `;
+
+      this._menupopup = this.querySelector(".textbox-contextmenu");
+
+      let frag = MozXULElement.parseXULToFragment(raw);
+
+      // Insert attributes that come from localized properties
+      this._pasteAndSearchMenuItem = frag.querySelector(
+        ".searchbar-paste-and-search"
+      );
+      this._pasteAndSearchMenuItem.setAttribute(
+        "label",
+        this._stringBundle.getString("cmd_pasteAndSearch")
+      );
+
+      let clearHistoryItem = frag.querySelector(".searchbar-clear-history");
+      clearHistoryItem.setAttribute(
+        "label",
+        this._stringBundle.getString("cmd_clearHistory")
+      );
+      clearHistoryItem.setAttribute(
+        "accesskey",
+        this._stringBundle.getString("cmd_clearHistory_accesskey")
+      );
+
+      this._menupopup.appendChild(frag);
+
+      this._menupopup.addEventListener("command", event => {
+        switch (event.originalTarget) {
+          case this._pasteAndSearchMenuItem:
+            this.select();
+            goDoCommand("cmd_paste");
+            this.handleSearchCommand(event);
+            break;
+          case clearHistoryItem:
+            let param = this.textbox.getAttribute("autocompletesearchparam");
+            lazy.FormHistory.update({ op: "remove", fieldname: param });
+            this.textbox.value = "";
+            break;
+          default:
+            let cmd = event.originalTarget.getAttribute("cmd");
+            if (cmd) {
+              let controller =
+                document.commandDispatcher.getControllerForCommand(cmd);
+              controller.doCommand(cmd);
+            }
+            break;
+        }
+      });
+    }
+  }
+
+  customElements.define("searchbar", MozSearchbar);
+}