forked from mirrors/gecko-dev
		
	
		
			
				
	
	
		
			1379 lines
		
	
	
	
		
			44 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			1379 lines
		
	
	
	
		
			44 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
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 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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// This is loaded into chrome windows with the subscript loader. Wrap in
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// a block to prevent accidentally leaking globals onto `window`.
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{
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  const { AppConstants } = ChromeUtils.importESModule(
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    "resource://gre/modules/AppConstants.sys.mjs"
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  );
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  const PREFS_TO_OBSERVE_BOOL = new Map([
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    ["findAsYouType", "accessibility.typeaheadfind"],
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    ["manualFAYT", "accessibility.typeaheadfind.manual"],
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    ["typeAheadLinksOnly", "accessibility.typeaheadfind.linksonly"],
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    ["entireWord", "findbar.entireword"],
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    ["highlightAll", "findbar.highlightAll"],
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    ["useModalHighlight", "findbar.modalHighlight"],
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  ]);
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  const PREFS_TO_OBSERVE_INT = new Map([
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    ["typeAheadCaseSensitive", "accessibility.typeaheadfind.casesensitive"],
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    ["matchDiacritics", "findbar.matchdiacritics"],
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  ]);
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  const PREFS_TO_OBSERVE_ALL = new Map([
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    ...PREFS_TO_OBSERVE_BOOL,
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    ...PREFS_TO_OBSERVE_INT,
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  ]);
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  const TOPIC_MAC_APP_ACTIVATE = "mac_app_activate";
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  class MozFindbar extends MozXULElement {
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    static get markup() {
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      return `
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      <hbox anonid="findbar-container" class="findbar-container" flex="1" align="center">
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        <hbox anonid="findbar-textbox-wrapper" align="stretch">
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          <html:input anonid="findbar-textbox" class="findbar-textbox" />
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          <toolbarbutton anonid="find-previous" class="findbar-find-previous tabbable"
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            data-l10n-attrs="tooltiptext" data-l10n-id="findbar-previous"
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            oncommand="onFindAgainCommand(true);" disabled="true" />
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          <toolbarbutton anonid="find-next" class="findbar-find-next tabbable"
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            data-l10n-id="findbar-next" oncommand="onFindAgainCommand(false);" disabled="true" />
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        </hbox>
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        <checkbox anonid="highlight" class="findbar-highlight tabbable"
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          data-l10n-id="findbar-highlight-all2" oncommand="toggleHighlight(this.checked);"/>
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        <checkbox anonid="find-case-sensitive" class="findbar-case-sensitive tabbable"
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          data-l10n-id="findbar-case-sensitive" oncommand="_setCaseSensitivity(this.checked ? 1 : 0);"/>
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        <checkbox anonid="find-match-diacritics" class="findbar-match-diacritics tabbable"
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          data-l10n-id="findbar-match-diacritics" oncommand="_setDiacriticMatching(this.checked ? 1 : 0);"/>
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        <checkbox anonid="find-entire-word" class="findbar-entire-word tabbable"
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          data-l10n-id="findbar-entire-word" oncommand="toggleEntireWord(this.checked);"/>
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        <label anonid="match-case-status" class="findbar-label"
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          data-l10n-id="findbar-case-sensitive-status" hidden="true" />
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        <label anonid="match-diacritics-status" class="findbar-label"
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          data-l10n-id="findbar-match-diacritics-status" hidden="true" />
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        <label anonid="entire-word-status" class="findbar-label"
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          data-l10n-id="findbar-entire-word-status" hidden="true" />
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        <label anonid="found-matches" class="findbar-label found-matches" hidden="true" />
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        <image anonid="find-status-icon" class="find-status-icon" />
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        <description anonid="find-status" control="findbar-textbox" class="findbar-label findbar-find-status" />
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      </hbox>
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      <toolbarbutton anonid="find-closebutton" class="findbar-closebutton tabbable close-icon"
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        data-l10n-id="findbar-find-button-close" oncommand="close();"/>
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      `;
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    }
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    constructor() {
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      super();
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      MozXULElement.insertFTLIfNeeded("toolkit/main-window/findbar.ftl");
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      this.destroy = this.destroy.bind(this);
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      // We have to guard against `this.close` being |null| due to an unknown
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      // issue, which is tracked in bug 957999.
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      this.addEventListener(
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        "keypress",
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        event => {
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          if (event.keyCode == event.DOM_VK_ESCAPE) {
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            if (this.close) {
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              this.close();
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            }
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            event.preventDefault();
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          }
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        },
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        true
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      );
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    }
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    connectedCallback() {
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      // Hide the findbar immediately without animation. This prevents a flicker in the case where
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      // we'll never be shown (i.e. adopting a tab that has a previously-opened-but-now-closed
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      // findbar into a new window).
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      this.setAttribute("noanim", "true");
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      this.hidden = true;
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      this.appendChild(this.constructor.fragment);
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      if (AppConstants.platform == "macosx") {
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        this.insertBefore(
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          this.getElement("find-closebutton"),
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          this.getElement("findbar-container")
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        );
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      }
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      /**
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       * Please keep in sync with toolkit/modules/FindBarContent.sys.mjs
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       */
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      this.FIND_NORMAL = 0;
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      this.FIND_TYPEAHEAD = 1;
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      this.FIND_LINKS = 2;
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      this._findMode = 0;
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      this._flashFindBar = 0;
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      this._initialFlashFindBarCount = 6;
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      /**
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       * For tests that need to know when the find bar is finished
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       * initializing, we store a promise to notify on.
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       */
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      this._startFindDeferred = null;
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      this._browser = null;
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      this._destroyed = false;
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      this._xulBrowserWindow = null;
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      // These elements are accessed frequently and are therefore cached.
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      this._findField = this.getElement("findbar-textbox");
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      this._foundMatches = this.getElement("found-matches");
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      this._findStatusIcon = this.getElement("find-status-icon");
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      this._findStatusDesc = this.getElement("find-status");
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      this._foundURL = null;
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      let prefsvc = Services.prefs;
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      this.quickFindTimeoutLength = prefsvc.getIntPref(
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        "accessibility.typeaheadfind.timeout"
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      );
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      this._flashFindBar = prefsvc.getIntPref(
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        "accessibility.typeaheadfind.flashBar"
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      );
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      let observe = (this._observe = this.observe.bind(this));
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      for (let [propName, prefName] of PREFS_TO_OBSERVE_ALL) {
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        prefsvc.addObserver(prefName, observe);
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        let prefGetter = PREFS_TO_OBSERVE_BOOL.has(propName) ? "Bool" : "Int";
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        this["_" + propName] = prefsvc[`get${prefGetter}Pref`](prefName);
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      }
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      Services.obs.addObserver(observe, TOPIC_MAC_APP_ACTIVATE);
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      this._findResetTimeout = -1;
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      // Make sure the FAYT keypress listener is attached by initializing the
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      // browser property.
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      if (this.getAttribute("browserid")) {
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        setTimeout(() => {
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          // eslint-disable-next-line no-self-assign
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          this.browser = this.browser;
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        }, 0);
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      }
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      window.addEventListener("unload", this.destroy);
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      this._findField.addEventListener("input", () => {
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        // We should do nothing during composition.  E.g., composing string
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        // before converting may matches a forward word of expected word.
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        // After that, even if user converts the composition string to the
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        // expected word, it may find second or later searching word in the
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        // document.
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        if (this._isIMEComposing) {
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          return;
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        }
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        const value = this._findField.value;
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        if (this._hadValue && !value) {
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          this._willfullyDeleted = true;
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          this._hadValue = false;
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        } else if (value.trim()) {
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          this._hadValue = true;
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          this._willfullyDeleted = false;
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        }
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        this._find(value);
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      });
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      this._findField.addEventListener("keypress", event => {
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        switch (event.keyCode) {
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          case KeyEvent.DOM_VK_RETURN:
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            if (this.findMode == this.FIND_NORMAL) {
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              let findString = this._findField;
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              if (!findString.value) {
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                return;
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              }
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              if (event.getModifierState("Accel")) {
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                this.getElement("highlight").click();
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                return;
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              }
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              this.onFindAgainCommand(event.shiftKey);
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            } else {
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              this._finishFAYT(event);
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            }
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            break;
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          case KeyEvent.DOM_VK_TAB:
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            let shouldHandle =
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              !event.altKey && !event.ctrlKey && !event.metaKey;
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            if (shouldHandle && this.findMode != this.FIND_NORMAL) {
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              this._finishFAYT(event);
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            }
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            break;
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          case KeyEvent.DOM_VK_PAGE_UP:
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          case KeyEvent.DOM_VK_PAGE_DOWN:
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            if (
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              !event.altKey &&
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              !event.ctrlKey &&
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              !event.metaKey &&
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              !event.shiftKey
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            ) {
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              this.browser.finder.keyPress(event);
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              event.preventDefault();
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            }
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            break;
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          case KeyEvent.DOM_VK_UP:
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          case KeyEvent.DOM_VK_DOWN:
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            this.browser.finder.keyPress(event);
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            event.preventDefault();
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            break;
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        }
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      });
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      this._findField.addEventListener("blur", () => {
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        // Note: This code used to remove the selection
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        // if it matched an editable.
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        this.browser.finder.enableSelection();
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      });
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      this._findField.addEventListener("focus", () => {
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        this._updateBrowserWithState();
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      });
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      this._findField.addEventListener("compositionstart", () => {
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        // Don't close the find toolbar while IME is composing.
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        let findbar = this;
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        findbar._isIMEComposing = true;
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        if (findbar._quickFindTimeout) {
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          clearTimeout(findbar._quickFindTimeout);
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          findbar._quickFindTimeout = null;
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          findbar._updateBrowserWithState();
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        }
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      });
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      this._findField.addEventListener("compositionend", () => {
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        this._isIMEComposing = false;
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        if (this.findMode != this.FIND_NORMAL) {
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          this._setFindCloseTimeout();
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        }
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      });
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      this._findField.addEventListener("dragover", event => {
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        if (event.dataTransfer.types.includes("text/plain")) {
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          event.preventDefault();
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        }
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      });
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      this._findField.addEventListener("drop", event => {
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        let value = event.dataTransfer.getData("text/plain");
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        this._findField.value = value;
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        this._find(value);
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        event.stopPropagation();
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        event.preventDefault();
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      });
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    }
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    set findMode(val) {
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      this._findMode = val;
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      this._updateBrowserWithState();
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    }
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    get findMode() {
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      return this._findMode;
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    }
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    set prefillWithSelection(val) {
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      this.setAttribute("prefillwithselection", val);
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    }
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    get prefillWithSelection() {
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      return this.getAttribute("prefillwithselection") != "false";
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    }
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    get hasTransactions() {
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      if (this._findField.value) {
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        return true;
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      }
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      // Watch out for lazy editor init
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      if (this._findField.editor) {
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        return this._findField.editor.canUndo || this._findField.editor.canRedo;
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      }
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      return false;
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    }
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    set browser(val) {
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      function setFindbarInActor(browser, findbar) {
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        if (!browser.frameLoader) {
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          return;
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        }
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        let windowGlobal = browser.browsingContext.currentWindowGlobal;
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        if (windowGlobal) {
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          let findbarParent = windowGlobal.getActor("FindBar");
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          if (findbarParent) {
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            findbarParent.setFindbar(browser, findbar);
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          }
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        }
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      }
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      if (this._browser) {
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        setFindbarInActor(this._browser, null);
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        let finder = this._browser.finder;
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        if (finder) {
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          finder.removeResultListener(this);
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        }
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      }
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      this._browser = val;
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      if (this._browser) {
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        // Need to do this to ensure the correct initial state.
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        this._updateBrowserWithState();
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        setFindbarInActor(this._browser, this);
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        this._browser.finder.addResultListener(this);
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      }
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    }
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    get browser() {
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      if (!this._browser) {
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        const id = this.getAttribute("browserid");
 | 
						|
        if (id) {
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          this._browser = document.getElementById(id);
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        }
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      }
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      return this._browser;
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    }
 | 
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    observe(subject, topic, prefName) {
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      if (topic == TOPIC_MAC_APP_ACTIVATE) {
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        this._onAppActivateMac();
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						|
        return;
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						|
      }
 | 
						|
 | 
						|
      if (topic != "nsPref:changed") {
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						|
        return;
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						|
      }
 | 
						|
 | 
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      let prefsvc = Services.prefs;
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						|
 | 
						|
      switch (prefName) {
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						|
        case "accessibility.typeaheadfind":
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          this._findAsYouType = prefsvc.getBoolPref(prefName);
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						|
          break;
 | 
						|
        case "accessibility.typeaheadfind.manual":
 | 
						|
          this._manualFAYT = prefsvc.getBoolPref(prefName);
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						|
          break;
 | 
						|
        case "accessibility.typeaheadfind.timeout":
 | 
						|
          this.quickFindTimeoutLength = prefsvc.getIntPref(prefName);
 | 
						|
          break;
 | 
						|
        case "accessibility.typeaheadfind.linksonly":
 | 
						|
          this._typeAheadLinksOnly = prefsvc.getBoolPref(prefName);
 | 
						|
          break;
 | 
						|
        case "accessibility.typeaheadfind.casesensitive":
 | 
						|
          this._setCaseSensitivity(prefsvc.getIntPref(prefName));
 | 
						|
          break;
 | 
						|
        case "findbar.entireword":
 | 
						|
          this._entireWord = prefsvc.getBoolPref(prefName);
 | 
						|
          this.toggleEntireWord(this._entireWord, true);
 | 
						|
          break;
 | 
						|
        case "findbar.highlightAll":
 | 
						|
          this.toggleHighlight(prefsvc.getBoolPref(prefName), true);
 | 
						|
          break;
 | 
						|
        case "findbar.matchdiacritics":
 | 
						|
          this._setDiacriticMatching(prefsvc.getIntPref(prefName));
 | 
						|
          break;
 | 
						|
        case "findbar.modalHighlight":
 | 
						|
          this._useModalHighlight = prefsvc.getBoolPref(prefName);
 | 
						|
          if (this.browser.finder) {
 | 
						|
            this.browser.finder.onModalHighlightChange(this._useModalHighlight);
 | 
						|
          }
 | 
						|
          break;
 | 
						|
      }
 | 
						|
    }
 | 
						|
 | 
						|
    getElement(aAnonymousID) {
 | 
						|
      return this.querySelector(`[anonid=${aAnonymousID}]`);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This is necessary because custom elements don't have a "real" destructor.
 | 
						|
     * This method is called explicitly from disconnectedCallback, and from
 | 
						|
     * an unload event handler that we add.
 | 
						|
     */
 | 
						|
    destroy() {
 | 
						|
      if (this._destroyed) {
 | 
						|
        return;
 | 
						|
      }
 | 
						|
      window.removeEventListener("unload", this.destroy);
 | 
						|
      this._destroyed = true;
 | 
						|
 | 
						|
      this.browser?._finder?.destroy();
 | 
						|
 | 
						|
      // Invoking this setter also removes the message listeners.
 | 
						|
      this.browser = null;
 | 
						|
 | 
						|
      let prefsvc = Services.prefs;
 | 
						|
      let observe = this._observe;
 | 
						|
      for (let [, prefName] of PREFS_TO_OBSERVE_ALL) {
 | 
						|
        prefsvc.removeObserver(prefName, observe);
 | 
						|
      }
 | 
						|
 | 
						|
      Services.obs.removeObserver(observe, TOPIC_MAC_APP_ACTIVATE);
 | 
						|
 | 
						|
      // Clear all timers that might still be running.
 | 
						|
      this._cancelTimers();
 | 
						|
    }
 | 
						|
 | 
						|
    _cancelTimers() {
 | 
						|
      if (this._flashFindBarTimeout) {
 | 
						|
        clearInterval(this._flashFindBarTimeout);
 | 
						|
        this._flashFindBarTimeout = null;
 | 
						|
      }
 | 
						|
      if (this._quickFindTimeout) {
 | 
						|
        clearTimeout(this._quickFindTimeout);
 | 
						|
        this._quickFindTimeout = null;
 | 
						|
      }
 | 
						|
      if (this._findResetTimeout) {
 | 
						|
        clearTimeout(this._findResetTimeout);
 | 
						|
        this._findResetTimeout = null;
 | 
						|
      }
 | 
						|
    }
 | 
						|
 | 
						|
    _setFindCloseTimeout() {
 | 
						|
      if (this._quickFindTimeout) {
 | 
						|
        clearTimeout(this._quickFindTimeout);
 | 
						|
      }
 | 
						|
 | 
						|
      // Don't close the find toolbar while IME is composing OR when the
 | 
						|
      // findbar is already hidden.
 | 
						|
      if (this._isIMEComposing || this.hidden) {
 | 
						|
        this._quickFindTimeout = null;
 | 
						|
        this._updateBrowserWithState();
 | 
						|
        return;
 | 
						|
      }
 | 
						|
 | 
						|
      if (this.quickFindTimeoutLength < 1) {
 | 
						|
        this._quickFindTimeout = null;
 | 
						|
      } else {
 | 
						|
        this._quickFindTimeout = setTimeout(() => {
 | 
						|
          if (this.findMode != this.FIND_NORMAL) {
 | 
						|
            this.close();
 | 
						|
          }
 | 
						|
          this._quickFindTimeout = null;
 | 
						|
        }, this.quickFindTimeoutLength);
 | 
						|
      }
 | 
						|
      this._updateBrowserWithState();
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Updates the search match count after each find operation on a new string.
 | 
						|
     */
 | 
						|
    _updateMatchesCount() {
 | 
						|
      if (!this._dispatchFindEvent("matchescount")) {
 | 
						|
        return;
 | 
						|
      }
 | 
						|
 | 
						|
      this.browser.finder.requestMatchesCount(
 | 
						|
        this._findField.value,
 | 
						|
        this.findMode == this.FIND_LINKS
 | 
						|
      );
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Turns highlighting of all occurrences on or off.
 | 
						|
     *
 | 
						|
     * @param {Boolean} highlight Whether to turn the highlight on or off.
 | 
						|
     * @param {Boolean} fromPrefObserver Whether the callee is the pref
 | 
						|
     *                                   observer, which means we should not set
 | 
						|
     *                                   the same pref again.
 | 
						|
     */
 | 
						|
    toggleHighlight(highlight, fromPrefObserver) {
 | 
						|
      if (highlight === this._highlightAll) {
 | 
						|
        return;
 | 
						|
      }
 | 
						|
 | 
						|
      this.browser.finder.onHighlightAllChange(highlight);
 | 
						|
 | 
						|
      this._setHighlightAll(highlight, fromPrefObserver);
 | 
						|
 | 
						|
      if (!this._dispatchFindEvent("highlightallchange")) {
 | 
						|
        return;
 | 
						|
      }
 | 
						|
 | 
						|
      let word = this._findField.value;
 | 
						|
      // Bug 429723. Don't attempt to highlight ""
 | 
						|
      if (highlight && !word) {
 | 
						|
        return;
 | 
						|
      }
 | 
						|
 | 
						|
      this.browser.finder.highlight(
 | 
						|
        highlight,
 | 
						|
        word,
 | 
						|
        this.findMode == this.FIND_LINKS
 | 
						|
      );
 | 
						|
 | 
						|
      // Update the matches count
 | 
						|
      this._updateMatchesCount(Ci.nsITypeAheadFind.FIND_FOUND);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Updates the highlight-all mode of the findbar and its UI.
 | 
						|
     *
 | 
						|
     * @param {Boolean} highlight Whether to turn the highlight on or off.
 | 
						|
     * @param {Boolean} fromPrefObserver Whether the callee is the pref
 | 
						|
     *                                   observer, which means we should not set
 | 
						|
     *                                   the same pref again.
 | 
						|
     */
 | 
						|
    _setHighlightAll(highlight, fromPrefObserver) {
 | 
						|
      if (typeof highlight != "boolean") {
 | 
						|
        highlight = this._highlightAll;
 | 
						|
      }
 | 
						|
      if (highlight !== this._highlightAll) {
 | 
						|
        this._highlightAll = highlight;
 | 
						|
        if (!fromPrefObserver) {
 | 
						|
          Services.telemetry.scalarAdd("findbar.highlight_all", 1);
 | 
						|
          Services.prefs.setBoolPref("findbar.highlightAll", highlight);
 | 
						|
        }
 | 
						|
      }
 | 
						|
      let checkbox = this.getElement("highlight");
 | 
						|
      checkbox.checked = this._highlightAll;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Updates the case-sensitivity mode of the findbar and its UI.
 | 
						|
     *
 | 
						|
     * @param {String} [str] The string for which case sensitivity might be
 | 
						|
     *                       turned on. This only used when case-sensitivity is
 | 
						|
     *                       in auto mode, see `_shouldBeCaseSensitive`. The
 | 
						|
     *                       default value for this parameter is the find-field
 | 
						|
     *                       value.
 | 
						|
     * @see _shouldBeCaseSensitive
 | 
						|
     */
 | 
						|
    _updateCaseSensitivity(str) {
 | 
						|
      let val = str || this._findField.value;
 | 
						|
 | 
						|
      let caseSensitive = this._shouldBeCaseSensitive(val);
 | 
						|
      let checkbox = this.getElement("find-case-sensitive");
 | 
						|
      let statusLabel = this.getElement("match-case-status");
 | 
						|
      checkbox.checked = caseSensitive;
 | 
						|
 | 
						|
      // Show the checkbox on the full Find bar in non-auto mode.
 | 
						|
      // Show the label in all other cases.
 | 
						|
      if (
 | 
						|
        this.findMode == this.FIND_NORMAL &&
 | 
						|
        (this._typeAheadCaseSensitive == 0 || this._typeAheadCaseSensitive == 1)
 | 
						|
      ) {
 | 
						|
        checkbox.hidden = false;
 | 
						|
        statusLabel.hidden = true;
 | 
						|
      } else {
 | 
						|
        checkbox.hidden = true;
 | 
						|
        statusLabel.hidden = !caseSensitive;
 | 
						|
      }
 | 
						|
 | 
						|
      this.browser.finder.caseSensitive = caseSensitive;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Sets the findbar case-sensitivity mode.
 | 
						|
     *
 | 
						|
     * @param {Number} caseSensitivity 0 - case insensitive,
 | 
						|
     *                                 1 - case sensitive,
 | 
						|
     *                                 2 - auto = case sensitive if the matching
 | 
						|
     *                                     string contains upper case letters.
 | 
						|
     * @see _shouldBeCaseSensitive
 | 
						|
     */
 | 
						|
    _setCaseSensitivity(caseSensitivity) {
 | 
						|
      this._typeAheadCaseSensitive = caseSensitivity;
 | 
						|
      this._updateCaseSensitivity();
 | 
						|
      this._findFailedString = null;
 | 
						|
      this._find();
 | 
						|
 | 
						|
      this._dispatchFindEvent("casesensitivitychange");
 | 
						|
      Services.telemetry.scalarAdd("findbar.match_case", 1);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Updates the diacritic-matching mode of the findbar and its UI.
 | 
						|
     *
 | 
						|
     * @param {String} [str] The string for which diacritic matching might be
 | 
						|
     *                       turned on. This is only used when diacritic
 | 
						|
     *                       matching is in auto mode, see
 | 
						|
     *                       `_shouldMatchDiacritics`. The default value for
 | 
						|
     *                       this parameter is the find-field value.
 | 
						|
     * @see _shouldMatchDiacritics.
 | 
						|
     */
 | 
						|
    _updateDiacriticMatching(str) {
 | 
						|
      let val = str || this._findField.value;
 | 
						|
 | 
						|
      let matchDiacritics = this._shouldMatchDiacritics(val);
 | 
						|
      let checkbox = this.getElement("find-match-diacritics");
 | 
						|
      let statusLabel = this.getElement("match-diacritics-status");
 | 
						|
      checkbox.checked = matchDiacritics;
 | 
						|
 | 
						|
      // Show the checkbox on the full Find bar in non-auto mode.
 | 
						|
      // Show the label in all other cases.
 | 
						|
      if (
 | 
						|
        this.findMode == this.FIND_NORMAL &&
 | 
						|
        (this._matchDiacritics == 0 || this._matchDiacritics == 1)
 | 
						|
      ) {
 | 
						|
        checkbox.hidden = false;
 | 
						|
        statusLabel.hidden = true;
 | 
						|
      } else {
 | 
						|
        checkbox.hidden = true;
 | 
						|
        statusLabel.hidden = !matchDiacritics;
 | 
						|
      }
 | 
						|
 | 
						|
      this.browser.finder.matchDiacritics = matchDiacritics;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Sets the findbar diacritic-matching mode
 | 
						|
     * @param {Number} diacriticMatching 0 - ignore diacritics,
 | 
						|
     *                                   1 - match diacritics,
 | 
						|
     *                                   2 - auto = match diacritics if the
 | 
						|
     *                                       matching string contains
 | 
						|
     *                                       diacritics.
 | 
						|
     * @see _shouldMatchDiacritics
 | 
						|
     */
 | 
						|
    _setDiacriticMatching(diacriticMatching) {
 | 
						|
      this._matchDiacritics = diacriticMatching;
 | 
						|
      this._updateDiacriticMatching();
 | 
						|
      this._findFailedString = null;
 | 
						|
      this._find();
 | 
						|
 | 
						|
      this._dispatchFindEvent("diacriticmatchingchange");
 | 
						|
 | 
						|
      Services.telemetry.scalarAdd("findbar.match_diacritics", 1);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Updates the entire-word mode of the findbar and its UI.
 | 
						|
     */
 | 
						|
    _setEntireWord() {
 | 
						|
      let entireWord = this._entireWord;
 | 
						|
      let checkbox = this.getElement("find-entire-word");
 | 
						|
      let statusLabel = this.getElement("entire-word-status");
 | 
						|
      checkbox.checked = entireWord;
 | 
						|
 | 
						|
      // Show the checkbox on the full Find bar.
 | 
						|
      // Show the label in all other cases.
 | 
						|
      if (this.findMode == this.FIND_NORMAL) {
 | 
						|
        checkbox.hidden = false;
 | 
						|
        statusLabel.hidden = true;
 | 
						|
      } else {
 | 
						|
        checkbox.hidden = true;
 | 
						|
        statusLabel.hidden = !entireWord;
 | 
						|
      }
 | 
						|
 | 
						|
      this.browser.finder.entireWord = entireWord;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Sets the findbar entire-word mode.
 | 
						|
     *
 | 
						|
     * @param {Boolean} entireWord Whether or not entire-word mode should be
 | 
						|
     *                             turned on.
 | 
						|
     */
 | 
						|
    toggleEntireWord(entireWord, fromPrefObserver) {
 | 
						|
      if (!fromPrefObserver) {
 | 
						|
        // Just set the pref; our observer will change the find bar behavior.
 | 
						|
        Services.prefs.setBoolPref("findbar.entireword", entireWord);
 | 
						|
 | 
						|
        Services.telemetry.scalarAdd("findbar.whole_words", 1);
 | 
						|
        return;
 | 
						|
      }
 | 
						|
 | 
						|
      this._findFailedString = null;
 | 
						|
      this._find();
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Opens and displays the find bar.
 | 
						|
     *
 | 
						|
     * @param {Number} mode The find mode to be used, which is either
 | 
						|
     *                      FIND_NORMAL, FIND_TYPEAHEAD or FIND_LINKS. If not
 | 
						|
     *                      passed, we revert to the last find mode if any or
 | 
						|
     *                      FIND_NORMAL.
 | 
						|
     * @return {Boolean} `true` if the find bar wasn't previously open, `false`
 | 
						|
     *                   otherwise.
 | 
						|
     */
 | 
						|
    open(mode) {
 | 
						|
      if (mode != undefined) {
 | 
						|
        this.findMode = mode;
 | 
						|
      }
 | 
						|
 | 
						|
      this._findFailedString = null;
 | 
						|
 | 
						|
      this._updateFindUI();
 | 
						|
      if (this.hidden) {
 | 
						|
        Services.telemetry.scalarAdd("findbar.shown", 1);
 | 
						|
        this.removeAttribute("noanim");
 | 
						|
        this.hidden = false;
 | 
						|
 | 
						|
        this._updateStatusUI(Ci.nsITypeAheadFind.FIND_FOUND);
 | 
						|
 | 
						|
        let event = document.createEvent("Events");
 | 
						|
        event.initEvent("findbaropen", true, false);
 | 
						|
        this.dispatchEvent(event);
 | 
						|
 | 
						|
        this.browser.finder.onFindbarOpen();
 | 
						|
 | 
						|
        return true;
 | 
						|
      }
 | 
						|
      return false;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Closes the findbar.
 | 
						|
     *
 | 
						|
     * @param {Boolean} [noAnim] Whether to disable to closing animation. Used
 | 
						|
     *                           to close instantly and synchronously, when
 | 
						|
     *                           other operations depend on this state.
 | 
						|
     */
 | 
						|
    close(noAnim) {
 | 
						|
      if (this.hidden) {
 | 
						|
        return;
 | 
						|
      }
 | 
						|
 | 
						|
      if (noAnim) {
 | 
						|
        this.setAttribute("noanim", true);
 | 
						|
      }
 | 
						|
      this.hidden = true;
 | 
						|
 | 
						|
      let event = document.createEvent("Events");
 | 
						|
      event.initEvent("findbarclose", true, false);
 | 
						|
      this.dispatchEvent(event);
 | 
						|
 | 
						|
      // 'focusContent()' iterates over all listeners in the chrome
 | 
						|
      // process, so we need to call it from here.
 | 
						|
      this.browser.finder.focusContent();
 | 
						|
      this.browser.finder.onFindbarClose();
 | 
						|
 | 
						|
      this._cancelTimers();
 | 
						|
      this._updateBrowserWithState();
 | 
						|
 | 
						|
      this._findFailedString = null;
 | 
						|
    }
 | 
						|
 | 
						|
    clear() {
 | 
						|
      this.browser.finder.removeSelection();
 | 
						|
      // Clear value and undo/redo transactions
 | 
						|
      this._findField.value = "";
 | 
						|
      this._findField.editor?.clearUndoRedo();
 | 
						|
      this.toggleHighlight(false);
 | 
						|
      this._updateStatusUI();
 | 
						|
      this._enableFindButtons(false);
 | 
						|
    }
 | 
						|
 | 
						|
    _dispatchKeypressEvent(target, fakeEvent) {
 | 
						|
      if (!target) {
 | 
						|
        return;
 | 
						|
      }
 | 
						|
 | 
						|
      // The event information comes from the child process.
 | 
						|
      let event = new target.ownerGlobal.KeyboardEvent(
 | 
						|
        fakeEvent.type,
 | 
						|
        fakeEvent
 | 
						|
      );
 | 
						|
      target.dispatchEvent(event);
 | 
						|
    }
 | 
						|
 | 
						|
    _updateStatusUIBar(foundURL) {
 | 
						|
      if (!this._xulBrowserWindow) {
 | 
						|
        try {
 | 
						|
          this._xulBrowserWindow = window.docShell.treeOwner
 | 
						|
            .QueryInterface(Ci.nsIInterfaceRequestor)
 | 
						|
            .getInterface(Ci.nsIAppWindow).XULBrowserWindow;
 | 
						|
        } catch (ex) {}
 | 
						|
        if (!this._xulBrowserWindow) {
 | 
						|
          return false;
 | 
						|
        }
 | 
						|
      }
 | 
						|
 | 
						|
      // Call this has the same effect like hovering over link,
 | 
						|
      // the browser shows the URL as a tooltip.
 | 
						|
      this._xulBrowserWindow.setOverLink(foundURL || "");
 | 
						|
      return true;
 | 
						|
    }
 | 
						|
 | 
						|
    _finishFAYT(keypressEvent) {
 | 
						|
      this.browser.finder.focusContent();
 | 
						|
 | 
						|
      if (keypressEvent) {
 | 
						|
        keypressEvent.preventDefault();
 | 
						|
      }
 | 
						|
 | 
						|
      this.browser.finder.keyPress(keypressEvent);
 | 
						|
 | 
						|
      this.close();
 | 
						|
      return true;
 | 
						|
    }
 | 
						|
 | 
						|
    _shouldBeCaseSensitive(str) {
 | 
						|
      if (this._typeAheadCaseSensitive == 0) {
 | 
						|
        return false;
 | 
						|
      }
 | 
						|
      if (this._typeAheadCaseSensitive == 1) {
 | 
						|
        return true;
 | 
						|
      }
 | 
						|
 | 
						|
      return str != str.toLowerCase();
 | 
						|
    }
 | 
						|
 | 
						|
    _shouldMatchDiacritics(str) {
 | 
						|
      if (this._matchDiacritics == 0) {
 | 
						|
        return false;
 | 
						|
      }
 | 
						|
      if (this._matchDiacritics == 1) {
 | 
						|
        return true;
 | 
						|
      }
 | 
						|
 | 
						|
      return str != str.normalize("NFD");
 | 
						|
    }
 | 
						|
 | 
						|
    onMouseUp() {
 | 
						|
      if (!this.hidden && this.findMode != this.FIND_NORMAL) {
 | 
						|
        this.close();
 | 
						|
      }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * We get a fake event object through an IPC message when FAYT is being used
 | 
						|
     * from within the browser. We then stuff that input in the find bar here.
 | 
						|
     *
 | 
						|
     * @param {Object} fakeEvent Event object that looks and quacks like a
 | 
						|
     *                           native DOM KeyPress event.
 | 
						|
     */
 | 
						|
    _onBrowserKeypress(fakeEvent) {
 | 
						|
      const FAYT_LINKS_KEY = "'";
 | 
						|
      const FAYT_TEXT_KEY = "/";
 | 
						|
 | 
						|
      if (!this.hidden && this._findField == document.activeElement) {
 | 
						|
        this._dispatchKeypressEvent(this._findField, fakeEvent);
 | 
						|
        return;
 | 
						|
      }
 | 
						|
 | 
						|
      if (this.findMode != this.FIND_NORMAL && this._quickFindTimeout) {
 | 
						|
        this._findField.select();
 | 
						|
        this._findField.focus();
 | 
						|
        this._dispatchKeypressEvent(this._findField, fakeEvent);
 | 
						|
        return;
 | 
						|
      }
 | 
						|
 | 
						|
      let key = fakeEvent.charCode
 | 
						|
        ? String.fromCharCode(fakeEvent.charCode)
 | 
						|
        : null;
 | 
						|
      let manualstartFAYT =
 | 
						|
        (key == FAYT_LINKS_KEY || key == FAYT_TEXT_KEY) && this._manualFAYT;
 | 
						|
      let autostartFAYT =
 | 
						|
        !manualstartFAYT && this._findAsYouType && key && key != " ";
 | 
						|
      if (manualstartFAYT || autostartFAYT) {
 | 
						|
        let mode =
 | 
						|
          key == FAYT_LINKS_KEY || (autostartFAYT && this._typeAheadLinksOnly)
 | 
						|
            ? this.FIND_LINKS
 | 
						|
            : this.FIND_TYPEAHEAD;
 | 
						|
 | 
						|
        // Clear bar first, so that when openFindBar() calls setCaseSensitivity()
 | 
						|
        // it doesn't get confused by a lingering value
 | 
						|
        this._findField.value = "";
 | 
						|
 | 
						|
        this.open(mode);
 | 
						|
        this._setFindCloseTimeout();
 | 
						|
        this._findField.select();
 | 
						|
        this._findField.focus();
 | 
						|
 | 
						|
        if (autostartFAYT) {
 | 
						|
          this._dispatchKeypressEvent(this._findField, fakeEvent);
 | 
						|
        } else {
 | 
						|
          this._updateStatusUI(Ci.nsITypeAheadFind.FIND_FOUND);
 | 
						|
        }
 | 
						|
      }
 | 
						|
    }
 | 
						|
 | 
						|
    _updateBrowserWithState() {
 | 
						|
      if (this._browser) {
 | 
						|
        this._browser.sendMessageToActor(
 | 
						|
          "Findbar:UpdateState",
 | 
						|
          {
 | 
						|
            findMode: this.findMode,
 | 
						|
            isOpenAndFocused:
 | 
						|
              !this.hidden && document.activeElement == this._findField,
 | 
						|
            hasQuickFindTimeout: !!this._quickFindTimeout,
 | 
						|
          },
 | 
						|
          "FindBar",
 | 
						|
          "all"
 | 
						|
        );
 | 
						|
      }
 | 
						|
    }
 | 
						|
 | 
						|
    _enableFindButtons(aEnable) {
 | 
						|
      this.getElement("find-next").disabled = this.getElement(
 | 
						|
        "find-previous"
 | 
						|
      ).disabled = !aEnable;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Determines whether minimalist or general-purpose search UI is to be
 | 
						|
     * displayed when the find bar is activated.
 | 
						|
     */
 | 
						|
    _updateFindUI() {
 | 
						|
      let showMinimalUI = this.findMode != this.FIND_NORMAL;
 | 
						|
 | 
						|
      let nodes = this.getElement("findbar-container").children;
 | 
						|
      let wrapper = this.getElement("findbar-textbox-wrapper");
 | 
						|
      let foundMatches = this._foundMatches;
 | 
						|
      for (let node of nodes) {
 | 
						|
        if (node == wrapper || node == foundMatches) {
 | 
						|
          continue;
 | 
						|
        }
 | 
						|
        node.hidden = showMinimalUI;
 | 
						|
      }
 | 
						|
      this.getElement("find-next").hidden = this.getElement(
 | 
						|
        "find-previous"
 | 
						|
      ).hidden = showMinimalUI;
 | 
						|
      foundMatches.hidden = showMinimalUI || !foundMatches.value;
 | 
						|
      this._updateCaseSensitivity();
 | 
						|
      this._updateDiacriticMatching();
 | 
						|
      this._setEntireWord();
 | 
						|
      this._setHighlightAll();
 | 
						|
 | 
						|
      if (showMinimalUI) {
 | 
						|
        this._findField.classList.add("minimal");
 | 
						|
      } else {
 | 
						|
        this._findField.classList.remove("minimal");
 | 
						|
      }
 | 
						|
 | 
						|
      let l10nId;
 | 
						|
      if (this.findMode == this.FIND_TYPEAHEAD) {
 | 
						|
        l10nId = "findbar-fast-find";
 | 
						|
      } else if (this.findMode == this.FIND_LINKS) {
 | 
						|
        l10nId = "findbar-fast-find-links";
 | 
						|
      } else {
 | 
						|
        l10nId = "findbar-normal-find";
 | 
						|
      }
 | 
						|
      document.l10n.setAttributes(this._findField, l10nId);
 | 
						|
    }
 | 
						|
 | 
						|
    _find(value) {
 | 
						|
      if (!this._dispatchFindEvent("")) {
 | 
						|
        return;
 | 
						|
      }
 | 
						|
 | 
						|
      let val = value || this._findField.value;
 | 
						|
 | 
						|
      // We have to carry around an explicit version of this, because
 | 
						|
      // finder.searchString doesn't update on failed searches.
 | 
						|
      this.browser._lastSearchString = val;
 | 
						|
 | 
						|
      // Only search on input if we don't have a last-failed string,
 | 
						|
      // or if the current search string doesn't start with it.
 | 
						|
      // In entire-word mode we always attemp a find; since sequential matching
 | 
						|
      // is not guaranteed, the first character typed may not be a word (no
 | 
						|
      // match), but the with the second character it may well be a word,
 | 
						|
      // thus a match.
 | 
						|
      if (
 | 
						|
        !this._findFailedString ||
 | 
						|
        !val.startsWith(this._findFailedString) ||
 | 
						|
        this._entireWord
 | 
						|
      ) {
 | 
						|
        // Getting here means the user commanded a find op. Make sure any
 | 
						|
        // initial prefilling is ignored if it hasn't happened yet.
 | 
						|
        if (this._startFindDeferred) {
 | 
						|
          this._startFindDeferred.resolve();
 | 
						|
          this._startFindDeferred = null;
 | 
						|
        }
 | 
						|
 | 
						|
        this._enableFindButtons(val);
 | 
						|
        this._updateCaseSensitivity(val);
 | 
						|
        this._updateDiacriticMatching(val);
 | 
						|
        this._setEntireWord();
 | 
						|
 | 
						|
        this.browser.finder.fastFind(
 | 
						|
          val,
 | 
						|
          this.findMode == this.FIND_LINKS,
 | 
						|
          this.findMode != this.FIND_NORMAL
 | 
						|
        );
 | 
						|
      }
 | 
						|
 | 
						|
      if (this.findMode != this.FIND_NORMAL) {
 | 
						|
        this._setFindCloseTimeout();
 | 
						|
      }
 | 
						|
 | 
						|
      if (this._findResetTimeout != -1) {
 | 
						|
        clearTimeout(this._findResetTimeout);
 | 
						|
      }
 | 
						|
 | 
						|
      // allow a search to happen on input again after a second has expired
 | 
						|
      // since the previous input, to allow for dynamic content and/ or page
 | 
						|
      // loading.
 | 
						|
      this._findResetTimeout = setTimeout(() => {
 | 
						|
        this._findFailedString = null;
 | 
						|
        this._findResetTimeout = -1;
 | 
						|
      }, 1000);
 | 
						|
    }
 | 
						|
 | 
						|
    _flash() {
 | 
						|
      if (this._flashFindBarCount === undefined) {
 | 
						|
        this._flashFindBarCount = this._initialFlashFindBarCount;
 | 
						|
      }
 | 
						|
 | 
						|
      if (this._flashFindBarCount-- == 0) {
 | 
						|
        clearInterval(this._flashFindBarTimeout);
 | 
						|
        this._findField.removeAttribute("flash");
 | 
						|
        this._flashFindBarCount = 6;
 | 
						|
        return;
 | 
						|
      }
 | 
						|
 | 
						|
      this._findField.setAttribute(
 | 
						|
        "flash",
 | 
						|
        this._flashFindBarCount % 2 == 0 ? "false" : "true"
 | 
						|
      );
 | 
						|
    }
 | 
						|
 | 
						|
    _findAgain(findPrevious) {
 | 
						|
      this.browser.finder.findAgain(
 | 
						|
        this._findField.value,
 | 
						|
        findPrevious,
 | 
						|
        this.findMode == this.FIND_LINKS,
 | 
						|
        this.findMode != this.FIND_NORMAL
 | 
						|
      );
 | 
						|
    }
 | 
						|
 | 
						|
    _updateStatusUI(res, findPrevious) {
 | 
						|
      let statusL10nId;
 | 
						|
      switch (res) {
 | 
						|
        case Ci.nsITypeAheadFind.FIND_WRAPPED:
 | 
						|
          this._findStatusIcon.setAttribute("status", "wrapped");
 | 
						|
          this._findField.removeAttribute("status");
 | 
						|
          statusL10nId = findPrevious
 | 
						|
            ? "findbar-wrapped-to-bottom"
 | 
						|
            : "findbar-wrapped-to-top";
 | 
						|
          break;
 | 
						|
        case Ci.nsITypeAheadFind.FIND_NOTFOUND:
 | 
						|
          this._findStatusDesc.setAttribute("status", "notfound");
 | 
						|
          this._findStatusIcon.setAttribute("status", "notfound");
 | 
						|
          this._findField.setAttribute("status", "notfound");
 | 
						|
          this._foundMatches.hidden = true;
 | 
						|
          statusL10nId = "findbar-not-found";
 | 
						|
          break;
 | 
						|
        case Ci.nsITypeAheadFind.FIND_PENDING:
 | 
						|
          this._findStatusIcon.setAttribute("status", "pending");
 | 
						|
          this._findField.removeAttribute("status");
 | 
						|
          this._findStatusDesc.removeAttribute("status");
 | 
						|
          statusL10nId = "";
 | 
						|
          break;
 | 
						|
        case Ci.nsITypeAheadFind.FIND_FOUND:
 | 
						|
        default:
 | 
						|
          this._findStatusIcon.removeAttribute("status");
 | 
						|
          this._findField.removeAttribute("status");
 | 
						|
          this._findStatusDesc.removeAttribute("status");
 | 
						|
          statusL10nId = "";
 | 
						|
          break;
 | 
						|
      }
 | 
						|
      if (statusL10nId) {
 | 
						|
        document.l10n.setAttributes(this._findStatusDesc, statusL10nId);
 | 
						|
      } else {
 | 
						|
        delete this._findStatusDesc.dataset.l10nId;
 | 
						|
        this._findStatusDesc.textContent = "";
 | 
						|
      }
 | 
						|
    }
 | 
						|
 | 
						|
    updateControlState(result, findPrevious) {
 | 
						|
      this._updateStatusUI(result, findPrevious);
 | 
						|
      this._enableFindButtons(
 | 
						|
        result !== Ci.nsITypeAheadFind.FIND_NOTFOUND && !!this._findField.value
 | 
						|
      );
 | 
						|
    }
 | 
						|
 | 
						|
    _dispatchFindEvent(type, findPrevious) {
 | 
						|
      let event = document.createEvent("CustomEvent");
 | 
						|
      event.initCustomEvent("find" + type, true, true, {
 | 
						|
        query: this._findField.value,
 | 
						|
        caseSensitive: !!this._typeAheadCaseSensitive,
 | 
						|
        matchDiacritics: !!this._matchDiacritics,
 | 
						|
        entireWord: this._entireWord,
 | 
						|
        highlightAll: this._highlightAll,
 | 
						|
        findPrevious,
 | 
						|
      });
 | 
						|
      return this.dispatchEvent(event);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Opens the findbar, focuses the findfield and selects its contents.
 | 
						|
     * Also flashes the findbar the first time it's used.
 | 
						|
     *
 | 
						|
     * @param {Number} mode The find mode to be used, which is either
 | 
						|
     *                      FIND_NORMAL, FIND_TYPEAHEAD or FIND_LINKS. If not
 | 
						|
     *                      passed, we revert to the last find mode if any or
 | 
						|
     *                      FIND_NORMAL.
 | 
						|
     * @return {Promise} A promise that will be resolved when the findbar is
 | 
						|
     *                   fully opened.
 | 
						|
     */
 | 
						|
    startFind(mode) {
 | 
						|
      let prefsvc = Services.prefs;
 | 
						|
      let userWantsPrefill = true;
 | 
						|
      this.open(mode);
 | 
						|
 | 
						|
      if (this._flashFindBar) {
 | 
						|
        this._flashFindBarTimeout = setInterval(() => this._flash(), 500);
 | 
						|
        prefsvc.setIntPref(
 | 
						|
          "accessibility.typeaheadfind.flashBar",
 | 
						|
          --this._flashFindBar
 | 
						|
        );
 | 
						|
      }
 | 
						|
 | 
						|
      this._startFindDeferred = Promise.withResolvers();
 | 
						|
      let startFindPromise = this._startFindDeferred.promise;
 | 
						|
 | 
						|
      if (this.prefillWithSelection) {
 | 
						|
        userWantsPrefill = prefsvc.getBoolPref(
 | 
						|
          "accessibility.typeaheadfind.prefillwithselection"
 | 
						|
        );
 | 
						|
      }
 | 
						|
 | 
						|
      if (this.prefillWithSelection && userWantsPrefill) {
 | 
						|
        this.browser.finder.getInitialSelection();
 | 
						|
 | 
						|
        // NB: We have to focus this._findField here so tests that send
 | 
						|
        // key events can open and close the find bar synchronously.
 | 
						|
        this._findField.focus();
 | 
						|
 | 
						|
        // (e10s) since we focus lets also select it, otherwise that would
 | 
						|
        // only happen in this.onCurrentSelection and, because it is async,
 | 
						|
        // there's a chance keypresses could come inbetween, leading to
 | 
						|
        // jumbled up queries.
 | 
						|
        this._findField.select();
 | 
						|
 | 
						|
        return startFindPromise;
 | 
						|
      }
 | 
						|
 | 
						|
      // If userWantsPrefill is false but prefillWithSelection is true,
 | 
						|
      // then we might need to check the selection clipboard. Call
 | 
						|
      // onCurrentSelection to do so.
 | 
						|
      // Note: this.onCurrentSelection clears this._startFindDeferred.
 | 
						|
      this.onCurrentSelection("", true);
 | 
						|
      return startFindPromise;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Convenient alias to startFind(gFindBar.FIND_NORMAL);
 | 
						|
     *
 | 
						|
     * You should generally map the window's find command to this method.
 | 
						|
     *   e.g. <command name="cmd_find" oncommand="gFindBar.onFindCommand();"/>
 | 
						|
     */
 | 
						|
    onFindCommand() {
 | 
						|
      return this.startFind(this.FIND_NORMAL);
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Stub for find-next and find-previous commands.
 | 
						|
     *
 | 
						|
     * @param {Boolean} findPrevious `true` for find-previous, `false`
 | 
						|
     *                               otherwise.
 | 
						|
     */
 | 
						|
    onFindAgainCommand(findPrevious) {
 | 
						|
      if (findPrevious) {
 | 
						|
        Services.telemetry.scalarAdd("findbar.find_prev", 1);
 | 
						|
      } else {
 | 
						|
        Services.telemetry.scalarAdd("findbar.find_next", 1);
 | 
						|
      }
 | 
						|
 | 
						|
      let findString =
 | 
						|
        this._browser.finder.searchString || this._findField.value;
 | 
						|
      if (!findString) {
 | 
						|
        return this.startFind();
 | 
						|
      }
 | 
						|
 | 
						|
      // We dispatch the findAgain event here instead of in _findAgain since
 | 
						|
      // if there is a find event handler that prevents the default then
 | 
						|
      // finder.searchString will never get updated which in turn means
 | 
						|
      // there would never be findAgain events because of the logic below.
 | 
						|
      if (!this._dispatchFindEvent("again", findPrevious)) {
 | 
						|
        return undefined;
 | 
						|
      }
 | 
						|
 | 
						|
      // user explicitly requested another search, so do it even if we think it'll fail
 | 
						|
      this._findFailedString = null;
 | 
						|
 | 
						|
      // Ensure the stored SearchString is in sync with what we want to find
 | 
						|
      if (this._findField.value != this._browser.finder.searchString) {
 | 
						|
        this._find(this._findField.value);
 | 
						|
      } else {
 | 
						|
        this._findAgain(findPrevious);
 | 
						|
        if (this._useModalHighlight) {
 | 
						|
          this.open();
 | 
						|
          this._findField.focus();
 | 
						|
        }
 | 
						|
      }
 | 
						|
 | 
						|
      return undefined;
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * Fetches the currently selected text and sets that as the text to search
 | 
						|
     * next. This is a MacOS specific feature.
 | 
						|
     */
 | 
						|
    onFindSelectionCommand() {
 | 
						|
      this.browser.finder.setSearchStringToSelection().then(searchInfo => {
 | 
						|
        if (searchInfo.selectedText) {
 | 
						|
          this._findField.value = searchInfo.selectedText;
 | 
						|
        }
 | 
						|
      });
 | 
						|
    }
 | 
						|
 | 
						|
    _onAppActivateMac() {
 | 
						|
      const kPref = "accessibility.typeaheadfind.prefillwithselection";
 | 
						|
      if (this.prefillWithSelection && Services.prefs.getBoolPref(kPref)) {
 | 
						|
        return;
 | 
						|
      }
 | 
						|
 | 
						|
      let clipboardSearchString = this._browser.finder.clipboardSearchString;
 | 
						|
      if (
 | 
						|
        clipboardSearchString &&
 | 
						|
        this._findField.value != clipboardSearchString &&
 | 
						|
        !this._findField._willfullyDeleted
 | 
						|
      ) {
 | 
						|
        this._findField.value = clipboardSearchString;
 | 
						|
        this._findField._hadValue = true;
 | 
						|
        // Changing the search string makes the previous status invalid, so
 | 
						|
        // we better clear it here.
 | 
						|
        this._updateStatusUI();
 | 
						|
      }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This handles all the result changes for both type-ahead-find and
 | 
						|
     * highlighting.
 | 
						|
     *
 | 
						|
     * @param {Object} data A dictionary that holds the following properties:
 | 
						|
     *                      - {Number} result  One of the FIND_* constants
 | 
						|
     *                                         indicating the result of a search
 | 
						|
     *                                         operation.
 | 
						|
     *                      - {Boolean} findBackwards If the search was done
 | 
						|
     *                                                from the bottom to the
 | 
						|
     *                                                top. This is used for
 | 
						|
     *                                                status messages when
 | 
						|
     *                                                reaching "the end of the
 | 
						|
     *                                                page".
 | 
						|
     *                      - {String} linkURL When a link matched, then its
 | 
						|
     *                                         URL. Always null when not in
 | 
						|
     *                                         FIND_LINKS mode.
 | 
						|
     */
 | 
						|
    onFindResult(data) {
 | 
						|
      if (data.result == Ci.nsITypeAheadFind.FIND_NOTFOUND) {
 | 
						|
        // If an explicit Find Again command fails, re-open the toolbar.
 | 
						|
        if (data.storeResult && this.open()) {
 | 
						|
          this._findField.select();
 | 
						|
          this._findField.focus();
 | 
						|
        }
 | 
						|
        this._findFailedString = data.searchString;
 | 
						|
      } else {
 | 
						|
        this._findFailedString = null;
 | 
						|
      }
 | 
						|
 | 
						|
      this._updateStatusUI(data.result, data.findBackwards);
 | 
						|
      this._updateStatusUIBar(data.linkURL);
 | 
						|
 | 
						|
      if (this.findMode != this.FIND_NORMAL) {
 | 
						|
        this._setFindCloseTimeout();
 | 
						|
      }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This handles all the result changes for matches counts.
 | 
						|
     *
 | 
						|
     * @param {Object} result Result Object, containing the total amount of
 | 
						|
     *                 matches and a vector of the current result.
 | 
						|
     *                 - {Number} total Total count number of matches found.
 | 
						|
     *                 - {Number} limit Current setting of the number of matches
 | 
						|
     *                                  to hit to hit the limit.
 | 
						|
     *                 - {Number} current Vector of the current result.
 | 
						|
     */
 | 
						|
    onMatchesCountResult(result) {
 | 
						|
      if (!result.total) {
 | 
						|
        delete this._foundMatches.dataset.l10nId;
 | 
						|
        this._foundMatches.hidden = true;
 | 
						|
        this._foundMatches.setAttribute("value", "");
 | 
						|
      } else {
 | 
						|
        const l10nId =
 | 
						|
          result.total === -1
 | 
						|
            ? "findbar-found-matches-count-limit"
 | 
						|
            : "findbar-found-matches";
 | 
						|
        this._foundMatches.hidden = false;
 | 
						|
        document.l10n.setAttributes(this._foundMatches, l10nId, result);
 | 
						|
      }
 | 
						|
    }
 | 
						|
 | 
						|
    onHighlightFinished() {
 | 
						|
      // Noop.
 | 
						|
    }
 | 
						|
 | 
						|
    onCurrentSelection(selectionString, isInitialSelection) {
 | 
						|
      // Ignore the prefill if the user has already typed in the findbar,
 | 
						|
      // it would have been overwritten anyway. See bug 1198465.
 | 
						|
      if (isInitialSelection && !this._startFindDeferred) {
 | 
						|
        return;
 | 
						|
      }
 | 
						|
 | 
						|
      if (
 | 
						|
        AppConstants.platform == "macosx" &&
 | 
						|
        isInitialSelection &&
 | 
						|
        !selectionString
 | 
						|
      ) {
 | 
						|
        let clipboardSearchString = this.browser.finder.clipboardSearchString;
 | 
						|
        if (clipboardSearchString) {
 | 
						|
          selectionString = clipboardSearchString;
 | 
						|
        }
 | 
						|
      }
 | 
						|
 | 
						|
      if (selectionString) {
 | 
						|
        this._findField.value = selectionString;
 | 
						|
      }
 | 
						|
 | 
						|
      if (isInitialSelection) {
 | 
						|
        this._enableFindButtons(!!this._findField.value);
 | 
						|
        this._findField.select();
 | 
						|
        this._findField.focus();
 | 
						|
 | 
						|
        this._startFindDeferred.resolve();
 | 
						|
        this._startFindDeferred = null;
 | 
						|
      }
 | 
						|
    }
 | 
						|
 | 
						|
    /**
 | 
						|
     * This handler may cancel a request to focus content by returning |false|
 | 
						|
     * explicitly.
 | 
						|
     */
 | 
						|
    shouldFocusContent() {
 | 
						|
      const fm = Services.focus;
 | 
						|
      if (fm.focusedWindow != window) {
 | 
						|
        return false;
 | 
						|
      }
 | 
						|
 | 
						|
      let focusedElement = fm.focusedElement;
 | 
						|
      if (!focusedElement) {
 | 
						|
        return false;
 | 
						|
      }
 | 
						|
 | 
						|
      let focusedParent = focusedElement.closest("findbar");
 | 
						|
      if (focusedParent != this && focusedParent != this._findField) {
 | 
						|
        return false;
 | 
						|
      }
 | 
						|
 | 
						|
      return true;
 | 
						|
    }
 | 
						|
 | 
						|
    disconnectedCallback() {
 | 
						|
      // Empty the DOM. We will rebuild if reconnected.
 | 
						|
      while (this.lastChild) {
 | 
						|
        this.removeChild(this.lastChild);
 | 
						|
      }
 | 
						|
      this.destroy();
 | 
						|
    }
 | 
						|
  }
 | 
						|
 | 
						|
  customElements.define("findbar", MozFindbar);
 | 
						|
}
 |