forked from mirrors/gecko-dev
		
	Differential Revision: https://phabricator.services.mozilla.com/D20613 --HG-- rename : browser/components/search/test/browser/testEngine.xml => browser/modules/test/browser/testEngine_chromeicon.xml extra : moz-landing-system : lando
		
			
				
	
	
		
			930 lines
		
	
	
	
		
			30 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			930 lines
		
	
	
	
		
			30 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
/* This Source Code Form is subject to the terms of the Mozilla Public
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 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
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 * You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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this.ContentSearchUIController = (function() {
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const MAX_DISPLAYED_SUGGESTIONS = 6;
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const SUGGESTION_ID_PREFIX = "searchSuggestion";
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const ONE_OFF_ID_PREFIX = "oneOff";
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const DEFAULT_INPUT_ICON = "chrome://browser/skin/search-glass.svg";
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const HTML_NS = "http://www.w3.org/1999/xhtml";
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/**
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 * Creates a new object that manages search suggestions and their UI for a text
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 * box.
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 *
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 * The UI consists of an html:table that's inserted into the DOM after the given
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 * text box and styled so that it appears as a dropdown below the text box.
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 *
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 * @param inputElement
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 *        Search suggestions will be based on the text in this text box.
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 *        Assumed to be an html:input.  xul:textbox is untested but might work.
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 * @param tableParent
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 *        The suggestion table is appended as a child to this element.  Since
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 *        the table is absolutely positioned and its top and left values are set
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 *        to be relative to the top and left of the page, either the parent and
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 *        all its ancestors should not be positioned elements (i.e., their
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 *        positions should be "static"), or the parent's position should be the
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 *        top left of the page.
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 * @param healthReportKey
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 *        This will be sent with the search data for FHR to record the search.
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 * @param searchPurpose
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 *        Sent with search data, see nsISearchEngine.getSubmission.
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 * @param idPrefix
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 *        The IDs of elements created by the object will be prefixed with this
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 *        string.
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 */
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function ContentSearchUIController(inputElement, tableParent, healthReportKey,
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                                   searchPurpose, idPrefix = "") {
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  this.input = inputElement;
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  this._idPrefix = idPrefix;
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  this._healthReportKey = healthReportKey;
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  this._searchPurpose = searchPurpose;
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  let tableID = idPrefix + "searchSuggestionTable";
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  this.input.autocomplete = "off";
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  this.input.setAttribute("aria-autocomplete", "true");
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  this.input.setAttribute("aria-controls", tableID);
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  tableParent.appendChild(this._makeTable(tableID));
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  this.input.addEventListener("keydown", this);
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  this.input.addEventListener("input", this);
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  this.input.addEventListener("focus", this);
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  this.input.addEventListener("blur", this);
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  window.addEventListener("ContentSearchService", this);
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  this._stickyInputValue = "";
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  this._hideSuggestions();
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  this._getSearchEngines();
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  this._getStrings();
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}
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ContentSearchUIController.prototype = {
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  _oneOffButtons: [],
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  // Setting up the one off buttons causes an uninterruptible reflow. If we
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  // receive the list of engines while the newtab page is loading, this reflow
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  // may regress performance - so we set this flag and only set up the buttons
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  // if it's set when the suggestions table is actually opened.
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  _pendingOneOffRefresh: undefined,
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  get defaultEngine() {
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    return this._defaultEngine;
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  },
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  set defaultEngine(engine) {
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    if (this._defaultEngine && this._defaultEngine.icon) {
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      URL.revokeObjectURL(this._defaultEngine.icon);
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    }
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    let icon;
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    if (engine.iconData) {
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      icon = this._getFaviconURIFromIconData(engine.iconData);
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    } else {
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      icon = "chrome://mozapps/skin/places/defaultFavicon.svg";
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    }
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    this._defaultEngine = {
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      name: engine.name,
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      icon,
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    };
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    this._updateDefaultEngineHeader();
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    this._updateDefaultEngineIcon();
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    if (engine && document.activeElement == this.input) {
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      this._speculativeConnect();
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    }
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  },
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  get engines() {
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    return this._engines;
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  },
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  set engines(val) {
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    this._engines = val;
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    this._pendingOneOffRefresh = true;
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  },
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  // The selectedIndex is the index of the element with the "selected" class in
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  // the list obtained by concatenating the suggestion rows, one-off buttons, and
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  // search settings button.
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  get selectedIndex() {
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    let allElts = [...this._suggestionsList.children,
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                   ...this._oneOffButtons,
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                   document.getElementById("contentSearchSettingsButton")];
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    for (let i = 0; i < allElts.length; ++i) {
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      let elt = allElts[i];
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      if (elt.classList.contains("selected")) {
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        return i;
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      }
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    }
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    return -1;
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  },
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  set selectedIndex(idx) {
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    // Update the table's rows, and the input when there is a selection.
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    this._table.removeAttribute("aria-activedescendant");
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    this.input.removeAttribute("aria-activedescendant");
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    let allElts = [...this._suggestionsList.children,
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                   ...this._oneOffButtons,
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                   document.getElementById("contentSearchSettingsButton")];
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    // If we are selecting a suggestion and a one-off is selected, don't deselect it.
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    let excludeIndex = idx < this.numSuggestions && this.selectedButtonIndex > -1 ?
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                       this.numSuggestions + this.selectedButtonIndex : -1;
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    for (let i = 0; i < allElts.length; ++i) {
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      let elt = allElts[i];
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      let ariaSelectedElt = i < this.numSuggestions ? elt.firstChild : elt;
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      if (i == idx) {
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        elt.classList.add("selected");
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        ariaSelectedElt.setAttribute("aria-selected", "true");
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        this.input.setAttribute("aria-activedescendant", ariaSelectedElt.id);
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      } else if (i != excludeIndex) {
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        elt.classList.remove("selected");
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        ariaSelectedElt.setAttribute("aria-selected", "false");
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      }
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    }
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  },
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  get selectedButtonIndex() {
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    let elts = [...this._oneOffButtons,
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                document.getElementById("contentSearchSettingsButton")];
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    for (let i = 0; i < elts.length; ++i) {
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      if (elts[i].classList.contains("selected")) {
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        return i;
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      }
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    }
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    return -1;
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  },
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  set selectedButtonIndex(idx) {
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    let elts = [...this._oneOffButtons,
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                document.getElementById("contentSearchSettingsButton")];
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    for (let i = 0; i < elts.length; ++i) {
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      let elt = elts[i];
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      if (i == idx) {
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        elt.classList.add("selected");
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        elt.setAttribute("aria-selected", "true");
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      } else {
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        elt.classList.remove("selected");
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        elt.setAttribute("aria-selected", "false");
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      }
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    }
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  },
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  get selectedEngineName() {
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    let selectedElt = this._oneOffsTable.querySelector(".selected");
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    if (selectedElt) {
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      return selectedElt.engineName;
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    }
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    return this.defaultEngine.name;
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  },
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  get numSuggestions() {
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    return this._suggestionsList.children.length;
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  },
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  selectAndUpdateInput(idx) {
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    this.selectedIndex = idx;
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    let newValue = this.suggestionAtIndex(idx) || this._stickyInputValue;
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    // Setting the input value when the value has not changed commits the current
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    // IME composition, which we don't want to do.
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    if (this.input.value != newValue) {
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      this.input.value = newValue;
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    }
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    this._updateSearchWithHeader();
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  },
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  suggestionAtIndex(idx) {
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    let row = this._suggestionsList.children[idx];
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    return row ? row.textContent : null;
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  },
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  deleteSuggestionAtIndex(idx) {
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    // Only form history suggestions can be deleted.
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    if (this.isFormHistorySuggestionAtIndex(idx)) {
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      let suggestionStr = this.suggestionAtIndex(idx);
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      this._sendMsg("RemoveFormHistoryEntry", suggestionStr);
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      this._suggestionsList.children[idx].remove();
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      this.selectAndUpdateInput(-1);
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    }
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  },
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  isFormHistorySuggestionAtIndex(idx) {
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    let row = this._suggestionsList.children[idx];
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    return row && row.classList.contains("formHistory");
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  },
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  addInputValueToFormHistory() {
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    this._sendMsg("AddFormHistoryEntry", this.input.value);
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  },
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  handleEvent(event) {
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    // The event handler is triggered by external events while the search
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    // element may no longer be present
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    if (!document.contains(this.input)) {
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      return;
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    }
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    this["_on" + event.type[0].toUpperCase() + event.type.substr(1)](event);
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  },
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  _onCommand(aEvent) {
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    if (this.selectedButtonIndex == this._oneOffButtons.length) {
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      // Settings button was selected.
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      this._sendMsg("ManageEngines");
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      return;
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    }
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    this.search(aEvent);
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    if (aEvent) {
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      aEvent.preventDefault();
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    }
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  },
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  search(aEvent) {
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    if (!this.defaultEngine) {
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      return; // Not initialized yet.
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    }
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    let searchText = this.input;
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    let searchTerms;
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    if (this._table.hidden ||
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        (aEvent.originalTarget &&
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          aEvent.originalTarget.id == "contentSearchDefaultEngineHeader") ||
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        aEvent instanceof KeyboardEvent) {
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      searchTerms = searchText.value;
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    } else {
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      searchTerms = this.suggestionAtIndex(this.selectedIndex) || searchText.value;
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    }
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    // Send an event that will perform a search and Firefox Health Report will
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    // record that a search from the healthReportKey passed to the constructor.
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    let eventData = {
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      engineName: this.selectedEngineName,
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      searchString: searchTerms,
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      healthReportKey: this._healthReportKey,
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      searchPurpose: this._searchPurpose,
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      originalEvent: {
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        shiftKey: aEvent.shiftKey,
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        ctrlKey: aEvent.ctrlKey,
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        metaKey: aEvent.metaKey,
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        altKey: aEvent.altKey,
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      },
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    };
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    if ("button" in aEvent) {
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      eventData.originalEvent.button = aEvent.button;
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    }
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    if (this.suggestionAtIndex(this.selectedIndex)) {
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      eventData.selection = {
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        index: this.selectedIndex,
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        kind: undefined,
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      };
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      if (aEvent instanceof MouseEvent) {
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        eventData.selection.kind = "mouse";
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      } else if (aEvent instanceof KeyboardEvent) {
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        eventData.selection.kind = "key";
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      }
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    }
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    this._sendMsg("Search", eventData);
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    this.addInputValueToFormHistory();
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  },
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  _onInput() {
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    if (!this.input.value) {
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      this._stickyInputValue = "";
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      this._hideSuggestions();
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    } else if (this.input.value != this._stickyInputValue) {
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      // Only fetch new suggestions if the input value has changed.
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      this._getSuggestions();
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      this.selectAndUpdateInput(-1);
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    }
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    this._updateSearchWithHeader();
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  },
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  _onKeydown(event) {
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    let selectedIndexDelta = 0;
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    let selectedSuggestionDelta = 0;
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    let selectedOneOffDelta = 0;
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    switch (event.keyCode) {
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    case event.DOM_VK_UP:
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      if (this._table.hidden) {
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        return;
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      }
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      if (event.getModifierState("Accel")) {
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        if (event.shiftKey) {
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          selectedSuggestionDelta = -1;
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          break;
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        }
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        this._cycleCurrentEngine(true);
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        break;
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      }
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      if (event.altKey) {
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        selectedOneOffDelta = -1;
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        break;
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      }
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      selectedIndexDelta = -1;
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      break;
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    case event.DOM_VK_DOWN:
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      if (this._table.hidden) {
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        this._getSuggestions();
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        return;
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      }
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      if (event.getModifierState("Accel")) {
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        if (event.shiftKey) {
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          selectedSuggestionDelta = 1;
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          break;
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        }
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        this._cycleCurrentEngine(false);
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        break;
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      }
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      if (event.altKey) {
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        selectedOneOffDelta = 1;
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        break;
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      }
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      selectedIndexDelta = 1;
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      break;
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    case event.DOM_VK_TAB:
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      if (this._table.hidden) {
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        return;
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      }
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      // Shift+tab when either the first or no one-off is selected, as well as
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      // tab when the settings button is selected, should change focus as normal.
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      if ((this.selectedButtonIndex <= 0 && event.shiftKey) ||
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          this.selectedButtonIndex == this._oneOffButtons.length && !event.shiftKey) {
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        return;
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      }
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      selectedOneOffDelta = event.shiftKey ? -1 : 1;
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      break;
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    case event.DOM_VK_RIGHT:
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      // Allow normal caret movement until the caret is at the end of the input.
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      if (this.input.selectionStart != this.input.selectionEnd ||
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          this.input.selectionEnd != this.input.value.length) {
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        return;
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      }
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      if (this.numSuggestions && this.selectedIndex >= 0 &&
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          this.selectedIndex < this.numSuggestions) {
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        this.input.value = this.suggestionAtIndex(this.selectedIndex);
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        this.input.setAttribute("selection-index", this.selectedIndex);
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        this.input.setAttribute("selection-kind", "key");
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      } else {
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        // If we didn't select anything, make sure to remove the attributes
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        // in case they were populated last time.
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        this.input.removeAttribute("selection-index");
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        this.input.removeAttribute("selection-kind");
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      }
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      this._stickyInputValue = this.input.value;
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      this._hideSuggestions();
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      return;
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    case event.DOM_VK_RETURN:
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      this._onCommand(event);
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      return;
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    case event.DOM_VK_DELETE:
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      if (this.selectedIndex >= 0) {
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        this.deleteSuggestionAtIndex(this.selectedIndex);
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      }
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      return;
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    case event.DOM_VK_ESCAPE:
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      if (!this._table.hidden) {
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        this._hideSuggestions();
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      }
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      return;
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    default:
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      return;
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    }
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    let currentIndex = this.selectedIndex;
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    if (selectedIndexDelta) {
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      let newSelectedIndex = currentIndex + selectedIndexDelta;
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      if (newSelectedIndex < -1) {
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        newSelectedIndex = this.numSuggestions + this._oneOffButtons.length;
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      }
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      // If are moving up from the first one off, we have to deselect the one off
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      // manually because the selectedIndex setter tries to exclude the selected
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      // one-off (which is desirable for accel+shift+up/down).
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      if (currentIndex == this.numSuggestions && selectedIndexDelta == -1) {
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        this.selectedButtonIndex = -1;
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      }
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      this.selectAndUpdateInput(newSelectedIndex);
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    } else if (selectedSuggestionDelta) {
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      let newSelectedIndex;
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      if (currentIndex >= this.numSuggestions || currentIndex == -1) {
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        // No suggestion already selected, select the first/last one appropriately.
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        newSelectedIndex = selectedSuggestionDelta == 1 ?
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                           0 : this.numSuggestions - 1;
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      } else {
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        newSelectedIndex = currentIndex + selectedSuggestionDelta;
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      }
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      if (newSelectedIndex >= this.numSuggestions) {
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        newSelectedIndex = -1;
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      }
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      this.selectAndUpdateInput(newSelectedIndex);
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    } else if (selectedOneOffDelta) {
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      let newSelectedIndex;
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      let currentButton = this.selectedButtonIndex;
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      if (currentButton == -1 || currentButton == this._oneOffButtons.length) {
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        // No one-off already selected, select the first/last one appropriately.
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        newSelectedIndex = selectedOneOffDelta == 1 ?
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                           0 : this._oneOffButtons.length - 1;
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      } else {
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        newSelectedIndex = currentButton + selectedOneOffDelta;
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      }
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      // 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) {
 | 
						|
      // Deselect any search suggestion that has been selected.
 | 
						|
      this.selectedIndex = -1;
 | 
						|
      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();
 | 
						|
  },
 | 
						|
 | 
						|
  _onMsgBlur(event) {
 | 
						|
    this.input.blur();
 | 
						|
    this._hideSuggestions();
 | 
						|
  },
 | 
						|
 | 
						|
  _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;
 | 
						|
  },
 | 
						|
 | 
						|
  _updateDefaultEngineIcon() {
 | 
						|
    let eng = this._engines.find(engine => engine.name === this.defaultEngine.name);
 | 
						|
    // We only show the engines icon for default engines, otherwise show
 | 
						|
    // a default; default engines have an identifier
 | 
						|
    let icon = eng.identifier ? this.defaultEngine.icon : DEFAULT_INPUT_ICON;
 | 
						|
    document.body.style.setProperty("--newtab-search-icon", "url(" + icon + ")");
 | 
						|
  },
 | 
						|
 | 
						|
  _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");
 | 
						|
    let labels = searchWithHeader.querySelectorAll("label");
 | 
						|
    if (this.input.value) {
 | 
						|
      let header = this._strings.searchForSomethingWith2;
 | 
						|
      // Translators can use both %S and %1$S.
 | 
						|
      header = header.replace("%1$S", "%S").split("%S");
 | 
						|
      labels[0].textContent = header[0];
 | 
						|
      labels[1].textContent = this.input.value;
 | 
						|
      labels[2].textContent = header[1];
 | 
						|
    } else {
 | 
						|
      labels[0].textContent = this._strings.searchWithHeader;
 | 
						|
      labels[1].textContent = "";
 | 
						|
      labels[2].textContent = "";
 | 
						|
    }
 | 
						|
  },
 | 
						|
 | 
						|
  _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;
 | 
						|
  },
 | 
						|
 | 
						|
  // If the favicon is an array buffer, convert it into a Blob URI.
 | 
						|
  // Otherwise just return the plain URI.
 | 
						|
  _getFaviconURIFromIconData(data) {
 | 
						|
    if (typeof(data) == "string") {
 | 
						|
      return data;
 | 
						|
    }
 | 
						|
 | 
						|
    // If typeof(data) != "string", we assume it's an ArrayBuffer
 | 
						|
    let blob = new Blob([data]);
 | 
						|
    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);
 | 
						|
 | 
						|
    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";
 | 
						|
    let start = document.createElement("label");
 | 
						|
    let inputLabel = document.createElement("label");
 | 
						|
    inputLabel.setAttribute("class", "contentSearchSearchWithHeaderSearchText");
 | 
						|
    let end = document.createElement("label");
 | 
						|
    header.appendChild(start);
 | 
						|
    header.appendChild(inputLabel);
 | 
						|
    header.appendChild(end);
 | 
						|
    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.iconData) {
 | 
						|
        uri = this._getFaviconURIFromIconData(engine.iconData);
 | 
						|
      } else {
 | 
						|
        uri = this._getImageURIForCurrentResolution(
 | 
						|
          "chrome://browser/skin/search-engine-placeholder.png");
 | 
						|
      }
 | 
						|
      img.setAttribute("src", uri);
 | 
						|
      img.addEventListener("load", function() {
 | 
						|
        URL.revokeObjectURL(uri);
 | 
						|
      }, {once: true});
 | 
						|
      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;
 | 
						|
})();
 |