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<!DOCTYPE html>
<html>
<!--
Copyright 2007 The Closure Library Authors. All Rights Reserved.

Use of this source code is governed by the Apache License, Version 2.0.
See the COPYING file for details.
-->
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Closure Unit Tests - goog.ui.Dialog</title>
<script src="../base.js"></script>
<script>
  goog.require('goog.dom');
  goog.require('goog.dom.a11y');
  goog.require('goog.events');
  goog.require('goog.events.EventType');
  goog.require('goog.fx.css3');
  goog.require('goog.style');
  goog.require('goog.testing.MockClock');
  goog.require('goog.testing.events');
  goog.require('goog.testing.jsunit');
  goog.require('goog.testing.recordFunction');
  goog.require('goog.ui.Dialog');
  goog.require('goog.ui.Dialog.ButtonSet');
  goog.require('goog.ui.PopupBase');
</script>
</head>
<body>
<iframe id="f" src="javascript:'<input>'"></iframe>
<script>
  var decorateTarget;
  var dialog;
  var mockClock;

  function setUp() {
    mockClock = new goog.testing.MockClock(true);
    dialog = new goog.ui.Dialog();
    var buttons = new goog.ui.Dialog.ButtonSet();
    buttons.set(goog.ui.Dialog.DefaultButtonKeys.CANCEL,
       'Foo!',
       false,
       true);
    buttons.set(goog.ui.Dialog.DefaultButtonKeys.OK,
       'OK',
       true);
    dialog.setButtonSet(buttons);
    dialog.setVisible(true);

    decorateTarget = goog.dom.createDom('div');
    document.body.appendChild(decorateTarget);
  }

  function tearDown() {
    dialog.dispose();
    goog.dom.removeNode(decorateTarget);
    mockClock.dispose();
  }

  function testCrossFrameFocus() {
    // Firefox (3.6, maybe future versions) fails this test when there are too
    // many other test files being run concurrently.
    if (goog.userAgent.IE || goog.userAgent.GECKO) {
      return;
    }
    dialog.setVisible(false);
    var iframeWindow = goog.dom.getElement('f').contentWindow;
    var iframeInput = iframeWindow.document.getElementsByTagName('input')[0];
    dialog.setButtonSet(goog.ui.Dialog.ButtonSet.OK);
    var buttonElement = dialog.getButtonSet().getButton(0);
    var focusCounter = 0;
    goog.events.listen(buttonElement, 'focus', function() {
      focusCounter++;
    });
    iframeInput.focus();
    dialog.setVisible(true);
    dialog.setVisible(false);
    iframeInput.focus();
    dialog.setVisible(true);
    assertEquals(2, focusCounter);
  }

  function testNoTitleClose() {
    assertTrue(goog.style.isElementShown(dialog.getTitleCloseElement()));
    dialog.setHasTitleCloseButton(false);
    assertFalse(goog.style.isElementShown(dialog.getTitleCloseElement()));
  }

  /**
   * Helper that clicks the first button in the dialog and checks if that
   * results in a goog.ui.Dialog.EventType.SELECT being dispatched.
   * @param {boolean} disableButton Whether to disable the button being
   *     tested.
   * @return {boolean} Whether a goog.ui.Dialog.EventType.SELECT was dispatched.
   */
  function checkSelectDispatchedOnButtonClick(disableButton) {
    var aButton = dialog.getButtonElement().getElementsByTagName('BUTTON')[0];
    assertNotEquals(aButton, null);
    aButton.disabled = disableButton;
    var wasCalled = false;
    var callRecorder = function() { wasCalled = true; };
    goog.events.listen(dialog, goog.ui.Dialog.EventType.SELECT, callRecorder);
    goog.testing.events.fireClickSequence(aButton);
    return wasCalled;
  }

  function testButtonClicksDispatchSelectEvents() {
    assertTrue('Select event should be dispatched' +
               ' when clicking on an enabled button',
        checkSelectDispatchedOnButtonClick(false));
  }

  function testDisabledButtonClicksDontDispatchSelectEvents() {
    assertFalse('Select event should not be dispatched' +
                ' when clicking on a disabled button',
        checkSelectDispatchedOnButtonClick(true));
  }

  function testEnterKeyDispatchesDefaultSelectEvents() {
    var okButton = dialog.getButtonElement().getElementsByTagName('BUTTON')[1];
    assertNotEquals(okButton, null);
    var wasCalled = false;
    var callRecorder = function() { wasCalled = true; };
    goog.events.listen(dialog, goog.ui.Dialog.EventType.SELECT, callRecorder);
    // Test that event is not dispatched when default button is disabled.
    okButton.disabled = true;
    goog.testing.events.fireKeySequence(dialog.getElement(),
                                        goog.events.KeyCodes.ENTER);
    assertFalse(wasCalled);
    // Test that event is dispatched when default button is enabled.
    okButton.disabled = false;
    goog.testing.events.fireKeySequence(dialog.getElement(),
                                        goog.events.KeyCodes.ENTER);
    assertTrue(wasCalled);
  }

  function testEnterKeyDoesNothingOnSpecialFormElements() {
    dialog.setContent('<textarea>Hello dialog</textarea>');
    var textarea = dialog.getContentElement().
        getElementsByTagName('TEXTAREA')[0];
    var wasCalled = false;
    var callRecorder = function() {
      wasCalled = true;
    };
    goog.events.listen(dialog, goog.ui.Dialog.EventType.SELECT, callRecorder);

    // Enter does not fire on the enabled textarea.
    goog.testing.events.fireKeySequence(textarea,
        goog.events.KeyCodes.ENTER);
    assertFalse(wasCalled);

    // Enter fires on the disabled textarea.
    textarea.disabled = true;
    goog.testing.events.fireKeySequence(textarea,
        goog.events.KeyCodes.ENTER);
    assertTrue(wasCalled);
  }

  function testEscapeKeyDoesNothingOnSpecialFormElements() {
    dialog.setContent('<select><option>Hello</option>' +
        '<option>dialog</option></select>');
    var select = dialog.getContentElement().
        getElementsByTagName('SELECT')[0];
    var wasCalled = false;
    var callRecorder = function() {
      wasCalled = true;
    };
    goog.events.listen(dialog, goog.ui.Dialog.EventType.SELECT, callRecorder);

    // Escape does not fire on the enabled select box.
    goog.testing.events.fireKeySequence(select,
        goog.events.KeyCodes.ESC);
    assertFalse(wasCalled);

    // Escape fires on the disabled select.
    select.disabled = true;
    goog.testing.events.fireKeySequence(select,
        goog.events.KeyCodes.ESC);
    assertTrue(wasCalled);
  }

  function testEscapeCloses() {
    // If escapeCloses is set to false, the dialog should ignore the escape key
    assertTrue(dialog.isEscapeToCancel());
    dialog.setEscapeToCancel(false);
    assertFalse(dialog.isEscapeToCancel());

    var buttons = new goog.ui.Dialog.ButtonSet();
    buttons.set(goog.ui.Dialog.DefaultButtonKeys.OK, 'OK', true);
    dialog.setButtonSet(buttons);
    goog.testing.events.fireKeySequence(dialog.getContentElement(),
        goog.events.KeyCodes.ESC);
    assertTrue(dialog.isVisible());

    // Having a cancel button should make no difference, escape should still not
    // work.
    buttons.set(goog.ui.Dialog.DefaultButtonKeys.CANCEL, 'Foo!', false, true);
    dialog.setButtonSet(buttons);
    goog.testing.events.fireKeySequence(dialog.getContentElement(),
        goog.events.KeyCodes.ESC);
    assertTrue(dialog.isVisible());
  }

  function testKeydownClosesWithoutButtonSet() {
    // Clear button set
    dialog.setButtonSet(null);

    // Create a custom button.
    dialog.setContent('<button id="button" name="ok">OK</button>');
    var wasCalled = false;
    function called() {
      wasCalled = true;
    }
    var element = goog.dom.getElement('button');
    goog.events.listen(element, goog.events.EventType.KEYPRESS, called);
    // Listen for 'Enter' on the button.
    // This tests using a dialog with no ButtonSet that has been set. Uses
    // a custom button.  The callback should be called with no exception thrown.
    goog.testing.events.fireKeySequence(element, goog.events.KeyCodes.ENTER);
    assertTrue('Should have gotten event on the button.', wasCalled);
  }

  function testEnterKeyWithoutDefaultDoesNotPreventPropagation() {
    var buttons = new goog.ui.Dialog.ButtonSet();
    buttons.set(goog.ui.Dialog.DefaultButtonKeys.CANCEL,
       'Foo!',
       false);
    // Set a button set without a default selected button
    dialog.setButtonSet(buttons);
    dialog.setContent('<span id="linkel" tabindex="0">Link Span</span>');

    var call = false;
    function called() {
      call = true;
    }
    var element = document.getElementById("linkel");
    goog.events.listen(element, goog.events.EventType.KEYDOWN, called);
    goog.testing.events.fireKeySequence(element, goog.events.KeyCodes.ENTER);

    assertTrue('Should have gotten event on the link', call);
  }

  function testPreventDefaultedSelectCausesStopPropagation() {
    dialog.setButtonSet(goog.ui.Dialog.ButtonSet.OK_CANCEL);

    var callCount = 0;
    var keypressCount = 0;
    var keydownCount = 0;

    var preventDefaulter = function(e) {
      e.preventDefault();
    };

    goog.events.listen(
        dialog, goog.ui.Dialog.EventType.SELECT, preventDefaulter);
    goog.events.listen(
        document.body, goog.events.EventType.KEYPRESS, function() {
          keypressCount++;
        });
    goog.events.listen(
        document.body, goog.events.EventType.KEYDOWN, function() {
          keydownCount++;
        });

    // Ensure that if the SELECT event is prevented, all key events
    // are still stopped from propagating.
    goog.testing.events.fireKeySequence(
        dialog.getElement(), goog.events.KeyCodes.ENTER);
    assertEquals('The KEYPRESS should be stopped', 0, keypressCount);
    assertEquals('The KEYDOWN should not be stopped', 1, keydownCount);

    keypressCount = 0;
    keydownCount = 0;
    goog.testing.events.fireKeySequence(
        dialog.getElement(), goog.events.KeyCodes.ESC);
    assertEquals('The KEYDOWN should be stopped', 0, keydownCount);
    // Note: Some browsers don't yield keypresses on escape, so don't check.

    goog.events.unlisten(
        dialog, goog.ui.Dialog.EventType.SELECT, preventDefaulter);

    keypressCount = 0;
    keydownCount = 0;
    goog.testing.events.fireKeySequence(
        dialog.getElement(), goog.events.KeyCodes.ENTER);
    assertEquals('The KEYPRESS should be stopped', 0, keypressCount);
    assertEquals('The KEYDOWN should not be stopped', 1, keydownCount);
  }

  function testEnterKeyHandledInKeypress() {
    var inKeyPress = false;
    goog.events.listen(
        document.body, goog.events.EventType.KEYPRESS,
        function() {
          inKeyPress = true;
        }, true /* capture */);
    goog.events.listen(
        document.body, goog.events.EventType.KEYPRESS,
        function() {
          inKeyPress = false;
        }, false /* !capture */);
    var selectCalled = false;
    goog.events.listen(
        dialog, goog.ui.Dialog.EventType.SELECT, function() {
          selectCalled = true;
          assertTrue(
              'Select must be dispatched during keypress to allow popups',
              inKeyPress);
        });

    goog.testing.events.fireKeySequence(
        dialog.getElement(), goog.events.KeyCodes.ENTER);
    assertTrue(selectCalled);
  }

  function testButtonsWithContentsDispatchSelectEvents() {
    var aButton = dialog.getButtonElement().getElementsByTagName('BUTTON')[0];
    var aSpan = document.createElement('SPAN');
    aButton.appendChild(aSpan);
    var wasCalled = false;
    var callRecorder = function() { wasCalled = true; };
    goog.events.listen(dialog, goog.ui.Dialog.EventType.SELECT, callRecorder);
    goog.testing.events.fireClickSequence(aSpan);
    assertTrue(wasCalled);
  }

  function testAfterHideEvent() {
    var wasCalled = false;
    var callRecorder = function() { wasCalled = true; };
    goog.events.listen(dialog, goog.ui.Dialog.EventType.AFTER_HIDE,
        callRecorder);
    dialog.setVisible(false);
    assertTrue(wasCalled);
  }

  function testAfterShowEvent() {
    dialog.setVisible(false);
    var wasCalled = false;
    var callRecorder = function() { wasCalled = true; };
    goog.events.listen(dialog, goog.ui.Dialog.EventType.AFTER_SHOW,
        callRecorder);
    dialog.setVisible(true);
    assertTrue(wasCalled);
  }

  function testCannedButtonSets() {
    dialog.setButtonSet(goog.ui.Dialog.ButtonSet.OK);
    assertButtons([goog.ui.Dialog.DefaultButtonKeys.OK]);

    dialog.setButtonSet(goog.ui.Dialog.ButtonSet.OK_CANCEL);
    assertButtons([goog.ui.Dialog.DefaultButtonKeys.OK,
                   goog.ui.Dialog.DefaultButtonKeys.CANCEL]);

    dialog.setButtonSet(goog.ui.Dialog.ButtonSet.YES_NO);
    assertButtons([goog.ui.Dialog.DefaultButtonKeys.YES,
                   goog.ui.Dialog.DefaultButtonKeys.NO]);

    dialog.setButtonSet(goog.ui.Dialog.ButtonSet.YES_NO_CANCEL);
    assertButtons([goog.ui.Dialog.DefaultButtonKeys.YES,
                   goog.ui.Dialog.DefaultButtonKeys.NO,
                   goog.ui.Dialog.DefaultButtonKeys.CANCEL]);

    dialog.setButtonSet(goog.ui.Dialog.ButtonSet.CONTINUE_SAVE_CANCEL);
    assertButtons([goog.ui.Dialog.DefaultButtonKeys.CONTINUE,
                   goog.ui.Dialog.DefaultButtonKeys.SAVE,
                   goog.ui.Dialog.DefaultButtonKeys.CANCEL]);
  }

  function testFactoryButtonSets() {
    dialog.setButtonSet(goog.ui.Dialog.ButtonSet.createOk());
    assertButtons([goog.ui.Dialog.DefaultButtonKeys.OK]);

    dialog.setButtonSet(goog.ui.Dialog.ButtonSet.createOkCancel());
    assertButtons([goog.ui.Dialog.DefaultButtonKeys.OK,
                   goog.ui.Dialog.DefaultButtonKeys.CANCEL]);

    dialog.setButtonSet(goog.ui.Dialog.ButtonSet.createYesNo());
    assertButtons([goog.ui.Dialog.DefaultButtonKeys.YES,
                   goog.ui.Dialog.DefaultButtonKeys.NO]);

    dialog.setButtonSet(goog.ui.Dialog.ButtonSet.createYesNoCancel());
    assertButtons([goog.ui.Dialog.DefaultButtonKeys.YES,
                   goog.ui.Dialog.DefaultButtonKeys.NO,
                   goog.ui.Dialog.DefaultButtonKeys.CANCEL]);

    dialog.setButtonSet(goog.ui.Dialog.ButtonSet.createContinueSaveCancel());
    assertButtons([goog.ui.Dialog.DefaultButtonKeys.CONTINUE,
                   goog.ui.Dialog.DefaultButtonKeys.SAVE,
                   goog.ui.Dialog.DefaultButtonKeys.CANCEL]);
  }

  function testDefaultButtonClassName() {
    var key = 'someKey';
    var msg = 'someMessage';
    var isDefault = false;
    var buttonSetOne = new goog.ui.Dialog.ButtonSet().set(key, msg, isDefault);
    dialog.setButtonSet(buttonSetOne);
    var defaultClassName = goog.getCssName(buttonSetOne.class_, 'default');
    var buttonOne = buttonSetOne.getButton(key);
    assertNotEquals(defaultClassName, buttonOne.className);
    var isDefault = true;
    var buttonSetTwo = new goog.ui.Dialog.ButtonSet().set(key, msg, isDefault);
    dialog.setButtonSet(buttonSetTwo);
    var buttonTwo = buttonSetTwo.getButton(key);
    assertEquals(defaultClassName, buttonTwo.className);
  }

  function testGetButton() {
    dialog.setButtonSet(goog.ui.Dialog.ButtonSet.OK);
    var buttons = document.getElementsByName(
        goog.ui.Dialog.DefaultButtonKeys.OK);
    assertEquals(buttons[0], dialog.getButtonSet().getButton(
        goog.ui.Dialog.DefaultButtonKeys.OK));
  }

  function testGetAllButtons() {
    dialog.setButtonSet(goog.ui.Dialog.ButtonSet.YES_NO_CANCEL);
    var buttons = dialog.getElement().getElementsByTagName(
        goog.dom.TagName.BUTTON);
    for (var i = 0; i < buttons.length; i++) {
      assertEquals(buttons[i], dialog.getButtonSet().getAllButtons()[i]);
    }
  }

  function testSetButtonEnabled() {
    var buttonSet = goog.ui.Dialog.ButtonSet.createYesNoCancel();
    dialog.setButtonSet(buttonSet);
    assertFalse(
        buttonSet.getButton(goog.ui.Dialog.DefaultButtonKeys.NO).disabled);
    buttonSet.setButtonEnabled(goog.ui.Dialog.DefaultButtonKeys.NO, false);
    assertTrue(
        buttonSet.getButton(goog.ui.Dialog.DefaultButtonKeys.NO).disabled);
    buttonSet.setButtonEnabled(goog.ui.Dialog.DefaultButtonKeys.NO, true);
    assertFalse(
        buttonSet.getButton(goog.ui.Dialog.DefaultButtonKeys.NO).disabled);
  }

  function testSetAllButtonsEnabled() {
    var buttonSet = goog.ui.Dialog.ButtonSet.createContinueSaveCancel();
    dialog.setButtonSet(buttonSet);
    var buttons = buttonSet.getAllButtons();
    for (var i = 0; i < buttons.length; i++) {
      assertFalse(buttons[i].disabled);
    }

    buttonSet.setAllButtonsEnabled(false);
    for (var i = 0; i < buttons.length; i++) {
      assertTrue(buttons[i].disabled);
    }

    buttonSet.setAllButtonsEnabled(true);
    for (var i = 0; i < buttons.length; i++) {
      assertFalse(buttons[i].disabled);
    }
  }

  function testIframeMask() {
    // generate a new dialog
    dialog.dispose();
    dialog = new goog.ui.Dialog(null, true /* iframe mask */);
    dialog.setVisible(true);

    var iframes =
        goog.dom.getElementsByTagNameAndClass(goog.dom.TagName.IFRAME);
    // NOTE: one iframe already exists in the document, so we check for 1 extra
    // iframe.
    assertEquals('No iframe mask created', 2, iframes.length);
  }

  function testNonModalDialog() {
    // generate a new dialog
    dialog.dispose();
    dialog = new goog.ui.Dialog(null, true /* iframe mask */);
    dialog.setModal(false);
    dialog.setVisible(true);

    var iframes =
        goog.dom.getElementsByTagNameAndClass(goog.dom.TagName.IFRAME);
    // NOTE: one iframe already exists in the document, so we check there are
    // no extra iframes in the document.
    assertEquals('Iframe mask created for modal dialog', 1, iframes.length);
  }

  function testSwapModalForOpenDialog() {
    dialog.dispose();
    dialog = new goog.ui.Dialog(null, true /* iframe mask */);
    dialog.setVisible(true);
    dialog.setModal(false);
    assertFalse('IFrame bg element should not be in dom',
        goog.dom.contains(document.body, dialog.getBackgroundIframe()));
    assertFalse('bg element should not be in dom',
        goog.dom.contains(document.body, dialog.getBackgroundElement()));

    dialog.setModal(true);
    assertTrue('IFrame bg element should be in dom',
        goog.dom.contains(document.body, dialog.getBackgroundIframe()));
    assertTrue('bg element should be in dom',
        goog.dom.contains(document.body, dialog.getBackgroundElement()));

    assertEquals('IFrame bg element is a child of body',
        document.body, dialog.getBackgroundIframe().parentNode);
    assertEquals('bg element is a child of body',
        document.body, dialog.getBackgroundElement().parentNode);

    assertTrue('IFrame bg element should visible',
        goog.style.isElementShown(dialog.getBackgroundIframe()));
    assertTrue('bg element should be visible',
        goog.style.isElementShown(dialog.getBackgroundElement()));
  }

  /**
   * Assert that the dialog has buttons with the given keys in the correct
   * order.
   * @param {Array.<string>} keys An array of button keys.
   */
  function assertButtons(keys) {
    var buttons = dialog.getElement().getElementsByTagName(
        goog.dom.TagName.BUTTON);
    var actualKeys = [];
    for (var i = 0; i < buttons.length; i++) {
      actualKeys[i] = buttons[i].name;
    }
    assertArrayEquals(keys, actualKeys);
  }

  function testButtonSetOkFiresDialogEventOnEscape() {
    dialog.setButtonSet(goog.ui.Dialog.ButtonSet.OK);
    var wasCalled = false;
    var callRecorder = function() { wasCalled = true; };
    goog.events.listen(dialog, goog.ui.Dialog.EventType.SELECT,
        callRecorder);
    goog.testing.events.fireKeySequence(
        dialog.getElement(), goog.events.KeyCodes.ESC);
    assertTrue(wasCalled);
  }

  function testHideButtons_afterRender() {
    dialog.setButtonSet(goog.ui.Dialog.ButtonSet.OK);
    assertTrue(goog.style.isElementShown(dialog.buttonEl_));
    dialog.setButtonSet(null);
    assertFalse(goog.style.isElementShown(dialog.buttonEl_));
    dialog.setButtonSet(goog.ui.Dialog.ButtonSet.OK);
    assertTrue(goog.style.isElementShown(dialog.buttonEl_));
  }

  function testHideButtons_beforeRender() {
    dialog.dispose();

    dialog = new goog.ui.Dialog();
    dialog.setButtonSet(null);
    dialog.setVisible(true);
    assertFalse(goog.style.isElementShown(dialog.buttonEl_));
    dialog.setButtonSet(goog.ui.Dialog.ButtonSet.OK);
    assertTrue(goog.style.isElementShown(dialog.buttonEl_));
  }

  function testHideButtons_beforeDecorate() {
    dialog.dispose();

    dialog = new goog.ui.Dialog();
    dialog.setButtonSet(null);
    dialog.decorate(decorateTarget);
    dialog.setVisible(true);
    assertFalse(goog.style.isElementShown(dialog.buttonEl_));
    dialog.setButtonSet(goog.ui.Dialog.ButtonSet.OK);
    assertTrue(goog.style.isElementShown(dialog.buttonEl_));
  }

  function testAriaLabelledBy_render() {
    dialog.dispose();

    dialog = new goog.ui.Dialog();
    dialog.render();
    assertTrue(!!dialog.getTitleElement().id);
    assertEquals(dialog.getTitleElement().id,
        goog.dom.a11y.getState(dialog.getElement(), 'labelledby'));
  }

  function testAriaLabelledBy_decorate() {
    dialog.dispose();

    dialog = new goog.ui.Dialog();
    dialog.decorate(decorateTarget);
    dialog.setVisible(true);
    assertTrue(!!dialog.getTitleElement().id);
    assertEquals(dialog.getTitleElement().id,
        goog.dom.a11y.getState(dialog.getElement(), 'labelledby'));
  }


  function testPreferredAriaRole_renderDefault() {
    dialog.dispose();

    dialog = new goog.ui.Dialog();
    dialog.render();
    assertEquals(dialog.getPreferredAriaRole(),
        goog.dom.a11y.getRole(dialog.getElement()));
  }

  function testPreferredAriaRole_decorateDefault() {
    dialog.dispose();

    dialog = new goog.ui.Dialog();
    dialog.decorate(decorateTarget);
    assertEquals(dialog.getPreferredAriaRole(),
        goog.dom.a11y.getRole(dialog.getElement()));
  }

  function testPreferredAriaRole_renderOverride() {
    dialog.dispose();

    dialog = new goog.ui.Dialog();
    dialog.setPreferredAriaRole(goog.dom.a11y.Role.ALERTDIALOG);
    dialog.render();
    assertEquals(goog.dom.a11y.Role.ALERTDIALOG,
        goog.dom.a11y.getRole(dialog.getElement()));
  }

  function testPreferredAriaRole_decorateOverride() {
    dialog.dispose();

    dialog = new goog.ui.Dialog();
    dialog.setPreferredAriaRole(goog.dom.a11y.Role.ALERTDIALOG);
    dialog.decorate(decorateTarget);
    assertEquals(goog.dom.a11y.Role.ALERTDIALOG,
        goog.dom.a11y.getRole(dialog.getElement()));
  }

  function testDefaultOpacityIsAppliedOnRender() {
    dialog.dispose();

    dialog = new goog.ui.Dialog();
    dialog.render();
    assertEquals(0.5, goog.style.getOpacity(dialog.getBackgroundElement()));
  }

  function testDefaultOpacityIsAppliedOnDecorate() {
    dialog.dispose();

    dialog = new goog.ui.Dialog();
    dialog.decorate(decorateTarget);
    assertEquals(0.5, goog.style.getOpacity(dialog.getBackgroundElement()));
  }

  function testDraggableStyle() {
    assertTrue('draggable CSS class is set', goog.dom.classes.has(
        dialog.titleEl_, 'modal-dialog-title-draggable'));
    dialog.setDraggable(false);
    assertFalse('draggable CSS class is removed', goog.dom.classes.has(
        dialog.titleEl_, 'modal-dialog-title-draggable'));
  }

  function testDraggingLifecycle() {
    dialog.dispose();

    dialog = new goog.ui.Dialog();
    dialog.setDraggerLimits_ = goog.testing.recordFunction();
    dialog.createDom();
    assertNull('dragger is not created in createDom', dialog.dragger_);

    dialog.setVisible(true);
    assertNotNull('dragger is created when the dialog is rendered',
        dialog.dragger_);

    assertNull('dragging limits are not set just before dragging',
        dialog.setDraggerLimits_.getLastCall());
    goog.testing.events.fireMouseDownEvent(dialog.titleEl_);
    assertNotNull('dragging limits are set',
        dialog.setDraggerLimits_.getLastCall());

    dialog.exitDocument();
    assertNull('dragger is cleaned up in exitDocument', dialog.dragger_);
  }

  function testDisposingVisibleDialogWithTransitionsDoesNotThrowException() {
    var transition = goog.fx.css3.fadeIn(dialog.getElement(),
        0.1 /* duration */);

    dialog.setTransition(transition, transition, transition, transition);
    dialog.setVisible(true);
    dialog.dispose();
    // Nothing to assert. We only want to ensure that there is no error.
  }

  function testEventsDuringAnimation() {
    dialog.dispose();
    dialog = new goog.ui.Dialog();
    dialog.render();
    dialog.setTransition(
        goog.fx.css3.fadeIn(dialog.getElement(), 1),
        goog.fx.css3.fadeIn(dialog.getBackgroundElement(), 1),
        goog.fx.css3.fadeOut(dialog.getElement(), 1),
        goog.fx.css3.fadeOut(dialog.getBackgroundElement(), 1));
    dialog.setVisible(true);
    assertTrue(dialog.isVisible());

    var buttonSet = dialog.getButtonSet();
    var button = buttonSet.getButton(buttonSet.getDefault());

    // The button event fires while the animation is still going.
    goog.testing.events.fireClickSequence(button);
    mockClock.tick(2000);
    assertFalse(dialog.isVisible());
  }
</script>
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