Revert "Add Basilisk"

This reverts commit e72ef92b5bdc43cd2584198e2e54e951b70299e8.

1 files changed, 0 insertions, 896 deletions

diff --git a/application/basilisk/base/content/contentSearchUI.js b/application/basilisk/base/content/contentSearchUI.js
deleted file mode 100644
index 509532a88..000000000
--- a/application/basilisk/base/content/contentSearchUI.js
+++ /dev/null
@@ -1,896 +0,0 @@
-/* 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";
-
-this.ContentSearchUIController = (function() {
-
-const MAX_DISPLAYED_SUGGESTIONS = 6;
-const SUGGESTION_ID_PREFIX = "searchSuggestion";
-const ONE_OFF_ID_PREFIX = "oneOff";
-
-const HTML_NS = "http://www.w3.org/1999/xhtml";
-
-/**
- * Creates a new object that manages search suggestions and their UI for a text
- * box.
- *
- * The UI consists of an html:table that's inserted into the DOM after the given
- * text box and styled so that it appears as a dropdown below the text box.
- *
- * @param inputElement
- *        Search suggestions will be based on the text in this text box.
- *        Assumed to be an html:input.  xul:textbox is untested but might work.
- * @param tableParent
- *        The suggestion table is appended as a child to this element.  Since
- *        the table is absolutely positioned and its top and left values are set
- *        to be relative to the top and left of the page, either the parent and
- *        all its ancestors should not be positioned elements (i.e., their
- *        positions should be "static"), or the parent's position should be the
- *        top left of the page.
- * @param healthReportKey
- *        This will be sent with the search data for FHR to record the search.
- * @param searchPurpose
- *        Sent with search data, see nsISearchEngine.getSubmission.
- * @param idPrefix
- *        The IDs of elements created by the object will be prefixed with this
- *        string.
- */
-function ContentSearchUIController(inputElement, tableParent, healthReportKey,
-                                   searchPurpose, idPrefix = "") {
-  this.input = inputElement;
-  this._idPrefix = idPrefix;
-  this._healthReportKey = healthReportKey;
-  this._searchPurpose = searchPurpose;
-
-  let tableID = idPrefix + "searchSuggestionTable";
-  this.input.autocomplete = "off";
-  this.input.setAttribute("aria-autocomplete", "true");
-  this.input.setAttribute("aria-controls", tableID);
-  tableParent.appendChild(this._makeTable(tableID));
-
-  this.input.addEventListener("keypress", this);
-  this.input.addEventListener("input", this);
-  this.input.addEventListener("focus", this);
-  this.input.addEventListener("blur", this);
-  window.addEventListener("ContentSearchService", this);
-
-  this._stickyInputValue = "";
-  this._hideSuggestions();
-
-  this._getSearchEngines();
-  this._getStrings();
-}
-
-ContentSearchUIController.prototype = {
-
-  _oneOffButtons: [],
-  // Setting up the one off buttons causes an uninterruptible reflow. If we
-  // receive the list of engines while the newtab page is loading, this reflow
-  // may regress performance - so we set this flag and only set up the buttons
-  // if it's set when the suggestions table is actually opened.
-  _pendingOneOffRefresh: undefined,
-
-  get defaultEngine() {
-    return this._defaultEngine;
-  },
-
-  set defaultEngine(engine) {
-    if (this._defaultEngine && this._defaultEngine.icon) {
-      URL.revokeObjectURL(this._defaultEngine.icon);
-    }
-    let icon;
-    if (engine.iconBuffer) {
-      icon = this._getFaviconURIFromBuffer(engine.iconBuffer);
-    } else {
-      icon = this._getImageURIForCurrentResolution(
-        "chrome://mozapps/skin/places/defaultFavicon.png");
-    }
-    this._defaultEngine = {
-      name: engine.name,
-      icon,
-    };
-    this._updateDefaultEngineHeader();
-
-    if (engine && document.activeElement == this.input) {
-      this._speculativeConnect();
-    }
-  },
-
-  get engines() {
-    return this._engines;
-  },
-
-  set engines(val) {
-    this._engines = val;
-    this._pendingOneOffRefresh = true;
-  },
-
-  // The selectedIndex is the index of the element with the "selected" class in
-  // the list obtained by concatenating the suggestion rows, one-off buttons, and
-  // search settings button.
-  get selectedIndex() {
-    let allElts = [...this._suggestionsList.children,
-                   ...this._oneOffButtons,
-                   document.getElementById("contentSearchSettingsButton")];
-    for (let i = 0; i < allElts.length; ++i) {
-      let elt = allElts[i];
-      if (elt.classList.contains("selected")) {
-        return i;
-      }
-    }
-    return -1;
-  },
-
-  set selectedIndex(idx) {
-    // Update the table's rows, and the input when there is a selection.
-    this._table.removeAttribute("aria-activedescendant");
-    this.input.removeAttribute("aria-activedescendant");
-
-    let allElts = [...this._suggestionsList.children,
-                   ...this._oneOffButtons,
-                   document.getElementById("contentSearchSettingsButton")];
-    // If we are selecting a suggestion and a one-off is selected, don't deselect it.
-    let excludeIndex = idx < this.numSuggestions && this.selectedButtonIndex > -1 ?
-                       this.numSuggestions + this.selectedButtonIndex : -1;
-    for (let i = 0; i < allElts.length; ++i) {
-      let elt = allElts[i];
-      let ariaSelectedElt = i < this.numSuggestions ? elt.firstChild : elt;
-      if (i == idx) {
-        elt.classList.add("selected");
-        ariaSelectedElt.setAttribute("aria-selected", "true");
-        this.input.setAttribute("aria-activedescendant", ariaSelectedElt.id);
-      } else if (i != excludeIndex) {
-        elt.classList.remove("selected");
-        ariaSelectedElt.setAttribute("aria-selected", "false");
-      }
-    }
-  },
-
-  get selectedButtonIndex() {
-    let elts = [...this._oneOffButtons,
-                document.getElementById("contentSearchSettingsButton")];
-    for (let i = 0; i < elts.length; ++i) {
-      if (elts[i].classList.contains("selected")) {
-        return i;
-      }
-    }
-    return -1;
-  },
-
-  set selectedButtonIndex(idx) {
-    let elts = [...this._oneOffButtons,
-                document.getElementById("contentSearchSettingsButton")];
-    for (let i = 0; i < elts.length; ++i) {
-      let elt = elts[i];
-      if (i == idx) {
-        elt.classList.add("selected");
-        elt.setAttribute("aria-selected", "true");
-      } else {
-        elt.classList.remove("selected");
-        elt.setAttribute("aria-selected", "false");
-      }
-    }
-  },
-
-  get selectedEngineName() {
-    let selectedElt = this._oneOffsTable.querySelector(".selected");
-    if (selectedElt) {
-      return selectedElt.engineName;
-    }
-    return this.defaultEngine.name;
-  },
-
-  get numSuggestions() {
-    return this._suggestionsList.children.length;
-  },
-
-  selectAndUpdateInput(idx) {
-    this.selectedIndex = idx;
-    let newValue = this.suggestionAtIndex(idx) || this._stickyInputValue;
-    // Setting the input value when the value has not changed commits the current
-    // IME composition, which we don't want to do.
-    if (this.input.value != newValue) {
-      this.input.value = newValue;
-    }
-    this._updateSearchWithHeader();
-  },
-
-  suggestionAtIndex(idx) {
-    let row = this._suggestionsList.children[idx];
-    return row ? row.textContent : null;
-  },
-
-  deleteSuggestionAtIndex(idx) {
-    // Only form history suggestions can be deleted.
-    if (this.isFormHistorySuggestionAtIndex(idx)) {
-      let suggestionStr = this.suggestionAtIndex(idx);
-      this._sendMsg("RemoveFormHistoryEntry", suggestionStr);
-      this._suggestionsList.children[idx].remove();
-      this.selectAndUpdateInput(-1);
-    }
-  },
-
-  isFormHistorySuggestionAtIndex(idx) {
-    let row = this._suggestionsList.children[idx];
-    return row && row.classList.contains("formHistory");
-  },
-
-  addInputValueToFormHistory() {
-    this._sendMsg("AddFormHistoryEntry", this.input.value);
-  },
-
-  handleEvent(event) {
-    this["_on" + event.type[0].toUpperCase() + event.type.substr(1)](event);
-  },
-
-  _onCommand(aEvent) {
-    if (this.selectedButtonIndex == this._oneOffButtons.length) {
-      // Settings button was selected.
-      this._sendMsg("ManageEngines");
-      return;
-    }
-
-    this.search(aEvent);
-
-    if (aEvent) {
-      aEvent.preventDefault();
-    }
-  },
-
-  search(aEvent) {
-    if (!this.defaultEngine) {
-      return; // Not initialized yet.
-    }
-
-    let searchText = this.input;
-    let searchTerms;
-    if (this._table.hidden ||
-        aEvent.originalTarget.id == "contentSearchDefaultEngineHeader" ||
-        aEvent instanceof KeyboardEvent) {
-      searchTerms = searchText.value;
-    } else {
-      searchTerms = this.suggestionAtIndex(this.selectedIndex) || searchText.value;
-    }
-    // Send an event that will perform a search and Firefox Health Report will
-    // record that a search from the healthReportKey passed to the constructor.
-    let eventData = {
-      engineName: this.selectedEngineName,
-      searchString: searchTerms,
-      healthReportKey: this._healthReportKey,
-      searchPurpose: this._searchPurpose,
-      originalEvent: {
-        shiftKey: aEvent.shiftKey,
-        ctrlKey: aEvent.ctrlKey,
-        metaKey: aEvent.metaKey,
-        altKey: aEvent.altKey,
-      },
-    };
-    if ("button" in aEvent) {
-      eventData.originalEvent.button = aEvent.button;
-    }
-
-    if (this.suggestionAtIndex(this.selectedIndex)) {
-      eventData.selection = {
-        index: this.selectedIndex,
-        kind: undefined,
-      };
-      if (aEvent instanceof MouseEvent) {
-        eventData.selection.kind = "mouse";
-      } else if (aEvent instanceof KeyboardEvent) {
-        eventData.selection.kind = "key";
-      }
-    }
-
-    this._sendMsg("Search", eventData);
-    this.addInputValueToFormHistory();
-  },
-
-  _onInput() {
-    if (!this.input.value) {
-      this._stickyInputValue = "";
-      this._hideSuggestions();
-    } else if (this.input.value != this._stickyInputValue) {
-      // Only fetch new suggestions if the input value has changed.
-      this._getSuggestions();
-      this.selectAndUpdateInput(-1);
-    }
-    this._updateSearchWithHeader();
-  },
-
-  _onKeypress(event) {
-    let selectedIndexDelta = 0;
-    let selectedSuggestionDelta = 0;
-    let selectedOneOffDelta = 0;
-
-    switch (event.keyCode) {
-    case event.DOM_VK_UP:
-      if (this._table.hidden) {
-        return;
-      }
-      if (event.getModifierState("Accel")) {
-        if (event.shiftKey) {
-          selectedSuggestionDelta = -1;
-          break;
-        }
-        this._cycleCurrentEngine(true);
-        break;
-      }
-      if (event.altKey) {
-        selectedOneOffDelta = -1;
-        break;
-      }
-      selectedIndexDelta = -1;
-      break;
-    case event.DOM_VK_DOWN:
-      if (this._table.hidden) {
-        this._getSuggestions();
-        return;
-      }
-      if (event.getModifierState("Accel")) {
-        if (event.shiftKey) {
-          selectedSuggestionDelta = 1;
-          break;
-        }
-        this._cycleCurrentEngine(false);
-        break;
-      }
-      if (event.altKey) {
-        selectedOneOffDelta = 1;
-        break;
-      }
-      selectedIndexDelta = 1;
-      break;
-    case event.DOM_VK_TAB:
-      if (this._table.hidden) {
-        return;
-      }
-      // Shift+tab when either the first or no one-off is selected, as well as
-      // tab when the settings button is selected, should change focus as normal.
-      if ((this.selectedButtonIndex <= 0 && event.shiftKey) ||
-          this.selectedButtonIndex == this._oneOffButtons.length && !event.shiftKey) {
-        return;
-      }
-      selectedOneOffDelta = event.shiftKey ? -1 : 1;
-      break;
-    case event.DOM_VK_RIGHT:
-      // Allow normal caret movement until the caret is at the end of the input.
-      if (this.input.selectionStart != this.input.selectionEnd ||
-          this.input.selectionEnd != this.input.value.length) {
-        return;
-      }
-      if (this.numSuggestions && this.selectedIndex >= 0 &&
-          this.selectedIndex < this.numSuggestions) {
-        this.input.value = this.suggestionAtIndex(this.selectedIndex);
-        this.input.setAttribute("selection-index", this.selectedIndex);
-        this.input.setAttribute("selection-kind", "key");
-      } else {
-        // If we didn't select anything, make sure to remove the attributes
-        // in case they were populated last time.
-        this.input.removeAttribute("selection-index");
-        this.input.removeAttribute("selection-kind");
-      }
-      this._stickyInputValue = this.input.value;
-      this._hideSuggestions();
-      return;
-    case event.DOM_VK_RETURN:
-      this._onCommand(event);
-      return;
-    case event.DOM_VK_DELETE:
-      if (this.selectedIndex >= 0) {
-        this.deleteSuggestionAtIndex(this.selectedIndex);
-      }
-      return;
-    case event.DOM_VK_ESCAPE:
-      if (!this._table.hidden) {
-        this._hideSuggestions();
-      }
-      return;
-    default:
-      return;
-    }
-
-    let currentIndex = this.selectedIndex;
-    if (selectedIndexDelta) {
-      let newSelectedIndex = currentIndex + selectedIndexDelta;
-      if (newSelectedIndex < -1) {
-        newSelectedIndex = this.numSuggestions + this._oneOffButtons.length;
-      }
-      // If are moving up from the first one off, we have to deselect the one off
-      // manually because the selectedIndex setter tries to exclude the selected
-      // one-off (which is desirable for accel+shift+up/down).
-      if (currentIndex == this.numSuggestions && selectedIndexDelta == -1) {
-        this.selectedButtonIndex = -1;
-      }
-      this.selectAndUpdateInput(newSelectedIndex);
-    } else if (selectedSuggestionDelta) {
-      let newSelectedIndex;
-      if (currentIndex >= this.numSuggestions || currentIndex == -1) {
-        // No suggestion already selected, select the first/last one appropriately.
-        newSelectedIndex = selectedSuggestionDelta == 1 ?
-                           0 : this.numSuggestions - 1;
-      } else {
-        newSelectedIndex = currentIndex + selectedSuggestionDelta;
-      }
-      if (newSelectedIndex >= this.numSuggestions) {
-        newSelectedIndex = -1;
-      }
-      this.selectAndUpdateInput(newSelectedIndex);
-    } else if (selectedOneOffDelta) {
-      let newSelectedIndex;
-      let currentButton = this.selectedButtonIndex;
-      if (currentButton == -1 || currentButton == this._oneOffButtons.length) {
-        // No one-off already selected, select the first/last one appropriately.
-        newSelectedIndex = selectedOneOffDelta == 1 ?
-                           0 : this._oneOffButtons.length - 1;
-      } else {
-        newSelectedIndex = currentButton + selectedOneOffDelta;
-      }
-      // Allow selection of the settings button via the tab key.
-      if (newSelectedIndex == this._oneOffButtons.length &&
-          event.keyCode != event.DOM_VK_TAB) {
-        newSelectedIndex = -1;
-      }
-      this.selectedButtonIndex = newSelectedIndex;
-    }
-
-    // Prevent the input's caret from moving.
-    event.preventDefault();
-  },
-
-  _currentEngineIndex: -1,
-  _cycleCurrentEngine(aReverse) {
-    if ((this._currentEngineIndex == this._engines.length - 1 && !aReverse) ||
-        (this._currentEngineIndex == 0 && aReverse)) {
-      return;
-    }
-    this._currentEngineIndex += aReverse ? -1 : 1;
-    let engineName = this._engines[this._currentEngineIndex].name;
-    this._sendMsg("SetCurrentEngine", engineName);
-  },
-
-  _onFocus() {
-    if (this._mousedown) {
-      return;
-    }
-    // When the input box loses focus to something in our table, we refocus it
-    // immediately. This causes the focus highlight to flicker, so we set a
-    // custom attribute which consumers should use for focus highlighting. This
-    // attribute is removed only when we do not immediately refocus the input
-    // box, thus eliminating flicker.
-    this.input.setAttribute("keepfocus", "true");
-    this._speculativeConnect();
-  },
-
-  _onBlur() {
-    if (this._mousedown) {
-      // At this point, this.input has lost focus, but a new element has not yet
-      // received it. If we re-focus this.input directly, the new element will
-      // steal focus immediately, so we queue it instead.
-      setTimeout(() => this.input.focus(), 0);
-      return;
-    }
-    this.input.removeAttribute("keepfocus");
-    this._hideSuggestions();
-  },
-
-  _onMousemove(event) {
-    let idx = this._indexOfTableItem(event.target);
-    if (idx >= this.numSuggestions) {
-      this.selectedButtonIndex = idx - this.numSuggestions;
-      return;
-    }
-    this.selectedIndex = idx;
-  },
-
-  _onMouseup(event) {
-    if (event.button == 2) {
-      return;
-    }
-    this._onCommand(event);
-  },
-
-  _onMouseout(event) {
-    // We only deselect one-off buttons and the settings button when they are
-    // moused out.
-    let idx = this._indexOfTableItem(event.originalTarget);
-    if (idx >= this.numSuggestions) {
-      this.selectedButtonIndex = -1;
-    }
-  },
-
-  _onClick(event) {
-    this._onMouseup(event);
-  },
-
-  _onContentSearchService(event) {
-    let methodName = "_onMsg" + event.detail.type;
-    if (methodName in this) {
-      this[methodName](event.detail.data);
-    }
-  },
-
-  _onMsgFocusInput(event) {
-    this.input.focus();
-  },
-
-  _onMsgSuggestions(suggestions) {
-    // Ignore the suggestions if their search string or engine doesn't match
-    // ours.  Due to the async nature of message passing, this can easily happen
-    // when the user types quickly.
-    if (this._stickyInputValue != suggestions.searchString ||
-        this.defaultEngine.name != suggestions.engineName) {
-      return;
-    }
-
-    this._clearSuggestionRows();
-
-    // Position and size the table.
-    let { left } = this.input.getBoundingClientRect();
-    this._table.style.top = this.input.offsetHeight + "px";
-    this._table.style.minWidth = this.input.offsetWidth + "px";
-    this._table.style.maxWidth = (window.innerWidth - left - 40) + "px";
-
-    // Add the suggestions to the table.
-    let searchWords =
-      new Set(suggestions.searchString.trim().toLowerCase().split(/\s+/));
-    for (let i = 0; i < MAX_DISPLAYED_SUGGESTIONS; i++) {
-      let type, idx;
-      if (i < suggestions.formHistory.length) {
-        [type, idx] = ["formHistory", i];
-      } else {
-        let j = i - suggestions.formHistory.length;
-        if (j < suggestions.remote.length) {
-          [type, idx] = ["remote", j];
-        } else {
-          break;
-        }
-      }
-      this._suggestionsList.appendChild(
-        this._makeTableRow(type, suggestions[type][idx], i, searchWords));
-    }
-
-    if (this._table.hidden) {
-      this.selectedIndex = -1;
-      if (this._pendingOneOffRefresh) {
-        this._setUpOneOffButtons();
-        delete this._pendingOneOffRefresh;
-      }
-      this._currentEngineIndex =
-        this._engines.findIndex(aEngine => aEngine.name == this.defaultEngine.name);
-      this._table.hidden = false;
-      this.input.setAttribute("aria-expanded", "true");
-      this._originalDefaultEngine = {
-        name: this.defaultEngine.name,
-        icon: this.defaultEngine.icon,
-      };
-    }
-  },
-
-  _onMsgSuggestionsCancelled() {
-    if (!this._table.hidden) {
-      this._hideSuggestions();
-    }
-  },
-
-  _onMsgState(state) {
-    this.engines = state.engines;
-    // No point updating the default engine (and the header) if there's no change.
-    if (this.defaultEngine &&
-        this.defaultEngine.name == state.currentEngine.name &&
-        this.defaultEngine.icon == state.currentEngine.icon) {
-      return;
-    }
-    this.defaultEngine = state.currentEngine;
-  },
-
-  _onMsgCurrentState(state) {
-    this._onMsgState(state);
-  },
-
-  _onMsgCurrentEngine(engine) {
-    this.defaultEngine = engine;
-    this._pendingOneOffRefresh = true;
-  },
-
-  _onMsgStrings(strings) {
-    this._strings = strings;
-    this._updateDefaultEngineHeader();
-    this._updateSearchWithHeader();
-    document.getElementById("contentSearchSettingsButton").textContent =
-      this._strings.searchSettings;
-    this.input.setAttribute("placeholder", this._strings.searchPlaceholder);
-  },
-
-  _updateDefaultEngineHeader() {
-    let header = document.getElementById("contentSearchDefaultEngineHeader");
-    header.firstChild.setAttribute("src", this.defaultEngine.icon);
-    if (!this._strings) {
-      return;
-    }
-    while (header.firstChild.nextSibling) {
-      header.firstChild.nextSibling.remove();
-    }
-    header.appendChild(document.createTextNode(
-      this._strings.searchHeader.replace("%S", this.defaultEngine.name)));
-  },
-
-  _updateSearchWithHeader() {
-    if (!this._strings) {
-      return;
-    }
-    let searchWithHeader = document.getElementById("contentSearchSearchWithHeader");
-    if (this.input.value) {
-      searchWithHeader.innerHTML = this._strings.searchForSomethingWith;
-      searchWithHeader.querySelector(".contentSearchSearchWithHeaderSearchText").textContent = this.input.value;
-    } else {
-      searchWithHeader.textContent = this._strings.searchWithHeader;
-    }
-  },
-
-  _speculativeConnect() {
-    if (this.defaultEngine) {
-      this._sendMsg("SpeculativeConnect", this.defaultEngine.name);
-    }
-  },
-
-  _makeTableRow(type, suggestionStr, currentRow, searchWords) {
-    let row = document.createElementNS(HTML_NS, "tr");
-    row.dir = "auto";
-    row.classList.add("contentSearchSuggestionRow");
-    row.classList.add(type);
-    row.setAttribute("role", "presentation");
-    row.addEventListener("mousemove", this);
-    row.addEventListener("mouseup", this);
-
-    let entry = document.createElementNS(HTML_NS, "td");
-    let img = document.createElementNS(HTML_NS, "div");
-    img.setAttribute("class", "historyIcon");
-    entry.appendChild(img);
-    entry.classList.add("contentSearchSuggestionEntry");
-    entry.setAttribute("role", "option");
-    entry.id = this._idPrefix + SUGGESTION_ID_PREFIX + currentRow;
-    entry.setAttribute("aria-selected", "false");
-
-    let suggestionWords = suggestionStr.trim().toLowerCase().split(/\s+/);
-    for (let i = 0; i < suggestionWords.length; i++) {
-      let word = suggestionWords[i];
-      let wordSpan = document.createElementNS(HTML_NS, "span");
-      if (searchWords.has(word)) {
-        wordSpan.classList.add("typed");
-      }
-      wordSpan.textContent = word;
-      entry.appendChild(wordSpan);
-      if (i < suggestionWords.length - 1) {
-        entry.appendChild(document.createTextNode(" "));
-      }
-    }
-
-    row.appendChild(entry);
-    return row;
-  },
-
-  // Converts favicon array buffer into a data URI.
-  _getFaviconURIFromBuffer(buffer) {
-    let blob = new Blob([buffer]);
-    return URL.createObjectURL(blob);
-  },
-
-  // Adds "@2x" to the name of the given PNG url for "retina" screens.
-  _getImageURIForCurrentResolution(uri) {
-    if (window.devicePixelRatio > 1) {
-      return uri.replace(/\.png$/, "@2x.png");
-    }
-    return uri;
-  },
-
-  _getSearchEngines() {
-    this._sendMsg("GetState");
-  },
-
-  _getStrings() {
-    this._sendMsg("GetStrings");
-  },
-
-  _getSuggestions() {
-    this._stickyInputValue = this.input.value;
-    if (this.defaultEngine) {
-      this._sendMsg("GetSuggestions", {
-        engineName: this.defaultEngine.name,
-        searchString: this.input.value,
-      });
-    }
-  },
-
-  _clearSuggestionRows() {
-    while (this._suggestionsList.firstElementChild) {
-      this._suggestionsList.firstElementChild.remove();
-    }
-  },
-
-  _hideSuggestions() {
-    this.input.setAttribute("aria-expanded", "false");
-    this.selectedIndex = -1;
-    this.selectedButtonIndex = -1;
-    this._currentEngineIndex = -1;
-    this._table.hidden = true;
-  },
-
-  _indexOfTableItem(elt) {
-    if (elt.classList.contains("contentSearchOneOffItem")) {
-      return this.numSuggestions + this._oneOffButtons.indexOf(elt);
-    }
-    if (elt.classList.contains("contentSearchSettingsButton")) {
-      return this.numSuggestions + this._oneOffButtons.length;
-    }
-    while (elt && elt.localName != "tr") {
-      elt = elt.parentNode;
-    }
-    if (!elt) {
-      throw new Error("Element is not a row");
-    }
-    return elt.rowIndex;
-  },
-
-  _makeTable(id) {
-    this._table = document.createElementNS(HTML_NS, "table");
-    this._table.id = id;
-    this._table.hidden = true;
-    this._table.classList.add("contentSearchSuggestionTable");
-    this._table.setAttribute("role", "presentation");
-
-    // When the search input box loses focus, we want to immediately give focus
-    // back to it if the blur was because the user clicked somewhere in the table.
-    // onBlur uses the _mousedown flag to detect this.
-    this._table.addEventListener("mousedown", () => { this._mousedown = true; });
-    document.addEventListener("mouseup", () => { delete this._mousedown; });
-
-    // Deselect the selected element on mouseout if it wasn't a suggestion.
-    this._table.addEventListener("mouseout", this);
-
-    // If a search is loaded in the same tab, ensure the suggestions dropdown
-    // is hidden immediately when the page starts loading and not when it first
-    // appears, in order to provide timely feedback to the user.
-    window.addEventListener("beforeunload", () => { this._hideSuggestions(); });
-
-    let headerRow = document.createElementNS(HTML_NS, "tr");
-    let header = document.createElementNS(HTML_NS, "td");
-    headerRow.setAttribute("class", "contentSearchHeaderRow");
-    header.setAttribute("class", "contentSearchHeader");
-    let iconImg = document.createElementNS(HTML_NS, "img");
-    header.appendChild(iconImg);
-    header.id = "contentSearchDefaultEngineHeader";
-    headerRow.appendChild(header);
-    headerRow.addEventListener("click", this);
-    this._table.appendChild(headerRow);
-
-    let row = document.createElementNS(HTML_NS, "tr");
-    row.setAttribute("class", "contentSearchSuggestionsContainer");
-    let cell = document.createElementNS(HTML_NS, "td");
-    cell.setAttribute("class", "contentSearchSuggestionsContainer");
-    this._suggestionsList = document.createElementNS(HTML_NS, "table");
-    this._suggestionsList.setAttribute("class", "contentSearchSuggestionsList");
-    cell.appendChild(this._suggestionsList);
-    row.appendChild(cell);
-    this._table.appendChild(row);
-    this._suggestionsList.setAttribute("role", "listbox");
-
-    this._oneOffsTable = document.createElementNS(HTML_NS, "table");
-    this._oneOffsTable.setAttribute("class", "contentSearchOneOffsTable");
-    this._oneOffsTable.classList.add("contentSearchSuggestionsContainer");
-    this._oneOffsTable.setAttribute("role", "group");
-    this._table.appendChild(this._oneOffsTable);
-
-    headerRow = document.createElementNS(HTML_NS, "tr");
-    header = document.createElementNS(HTML_NS, "td");
-    headerRow.setAttribute("class", "contentSearchHeaderRow");
-    header.setAttribute("class", "contentSearchHeader");
-    headerRow.appendChild(header);
-    header.id = "contentSearchSearchWithHeader";
-    this._oneOffsTable.appendChild(headerRow);
-
-    let button = document.createElementNS(HTML_NS, "button");
-    button.setAttribute("class", "contentSearchSettingsButton");
-    button.classList.add("contentSearchHeaderRow");
-    button.classList.add("contentSearchHeader");
-    button.id = "contentSearchSettingsButton";
-    button.addEventListener("click", this);
-    button.addEventListener("mousemove", this);
-    this._table.appendChild(button);
-
-    return this._table;
-  },
-
-  _setUpOneOffButtons() {
-    // Sometimes we receive a CurrentEngine message from the ContentSearch service
-    // before we've received a State message - i.e. before we have our engines.
-    if (!this._engines) {
-      return;
-    }
-
-    while (this._oneOffsTable.firstChild.nextSibling) {
-      this._oneOffsTable.firstChild.nextSibling.remove();
-    }
-
-    this._oneOffButtons = [];
-
-    let engines = this._engines.filter(aEngine => aEngine.name != this.defaultEngine.name)
-                               .filter(aEngine => !aEngine.hidden);
-    if (!engines.length) {
-      this._oneOffsTable.hidden = true;
-      return;
-    }
-
-    const kDefaultButtonWidth = 49; // 48px + 1px border.
-    let rowWidth = this.input.offsetWidth - 2; // 2px border.
-    let enginesPerRow = Math.floor(rowWidth / kDefaultButtonWidth);
-    let buttonWidth = Math.floor(rowWidth / enginesPerRow);
-
-    let row = document.createElementNS(HTML_NS, "tr");
-    let cell = document.createElementNS(HTML_NS, "td");
-    row.setAttribute("class", "contentSearchSuggestionsContainer");
-    cell.setAttribute("class", "contentSearchSuggestionsContainer");
-
-    for (let i = 0; i < engines.length; ++i) {
-      let engine = engines[i];
-      if (i > 0 && i % enginesPerRow == 0) {
-        row.appendChild(cell);
-        this._oneOffsTable.appendChild(row);
-        row = document.createElementNS(HTML_NS, "tr");
-        cell = document.createElementNS(HTML_NS, "td");
-        row.setAttribute("class", "contentSearchSuggestionsContainer");
-        cell.setAttribute("class", "contentSearchSuggestionsContainer");
-      }
-      let button = document.createElementNS(HTML_NS, "button");
-      button.setAttribute("class", "contentSearchOneOffItem");
-      let img = document.createElementNS(HTML_NS, "img");
-      let uri;
-      if (engine.iconBuffer) {
-        uri = this._getFaviconURIFromBuffer(engine.iconBuffer);
-      } else {
-        uri = this._getImageURIForCurrentResolution(
-          "chrome://browser/skin/search-engine-placeholder.png");
-      }
-      img.setAttribute("src", uri);
-      img.addEventListener("load", function imgLoad() {
-        img.removeEventListener("load", imgLoad);
-        URL.revokeObjectURL(uri);
-      });
-      button.appendChild(img);
-      button.style.width = buttonWidth + "px";
-      button.setAttribute("title", engine.name);
-
-      button.engineName = engine.name;
-      button.addEventListener("click", this);
-      button.addEventListener("mousemove", this);
-
-      if (engines.length - i <= enginesPerRow - (i % enginesPerRow)) {
-        button.classList.add("last-row");
-      }
-
-      if ((i + 1) % enginesPerRow == 0) {
-        button.classList.add("end-of-row");
-      }
-
-      button.id = ONE_OFF_ID_PREFIX + i;
-      cell.appendChild(button);
-      this._oneOffButtons.push(button);
-    }
-    row.appendChild(cell);
-    this._oneOffsTable.appendChild(row);
-    this._oneOffsTable.hidden = false;
-  },
-
-  _sendMsg(type, data = null) {
-    dispatchEvent(new CustomEvent("ContentSearchClient", {
-      detail: {
-        type,
-        data,
-      },
-    }));
-  },
-};
-
-return ContentSearchUIController;
-})();