browser_947914_button_zoomReset.js

Enable keyboard shortcuts

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

"use strict";

var initialPageZoom = ZoomManager.zoom;

add_task(async function () {

  info("Check zoom reset button existence and functionality");

  is(initialPageZoom, 1, "Page zoom reset correctly");

  await BrowserTestUtils.withNewTab(

    { gBrowser, url: "http://example.com", waitForLoad: true },

    async function () {

      CustomizableUI.addWidgetToArea(

        "zoom-controls",

        CustomizableUI.AREA_FIXED_OVERFLOW_PANEL

);

      registerCleanupFunction(() => CustomizableUI.reset());

      CustomizableUI.addWidgetToArea(

        "zoom-controls",

        CustomizableUI.AREA_FIXED_OVERFLOW_PANEL

);

      await waitForOverflowButtonShown();

        let zoomChange = BrowserTestUtils.waitForEvent(

          gBrowser,

          "FullZoomChange"

);

        ZoomManager.zoom = 0.5;

        await zoomChange;

      await document.getElementById("nav-bar").overflowable.show();

      info("Menu panel was opened");

      let zoomResetButton = document.getElementById("zoom-reset-button");

      ok(zoomResetButton, "Zoom reset button exists in Panel Menu");

      let zoomChange = BrowserTestUtils.waitForEvent(

        gBrowser,

        "FullZoomChange"

);

      zoomResetButton.click();

      await zoomChange;

      let pageZoomLevel = Math.floor(ZoomManager.zoom * 100);

      let expectedZoomLevel = 100;

      let buttonZoomLevel = parseInt(zoomResetButton.getAttribute("label"), 10);

      is(pageZoomLevel, expectedZoomLevel, "Page zoom reset correctly");

is(

        pageZoomLevel,

        buttonZoomLevel,

        "Button displays the correct zoom level"

);

      // close the panel

      let panelHiddenPromise = promiseOverflowHidden(window);

      document.getElementById("widget-overflow").hidePopup();

      await panelHiddenPromise;

      info("Menu panel was closed");

);

});

add_task(async function asyncCleanup() {

  // reset zoom level

  ZoomManager.zoom = initialPageZoom;

  info("Zoom level was restored");

});