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<!DOCTYPE html>
<html>
<!--
Copyright 2008 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.
-->
<!--
@author nicksantos@google.com (Nick Santos)
-->
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Closure Unit Tests - goog.ui.SubMenu</title>
<style type='text/css'>
.goog-menu {
position: absolute;
color: #000;
border: 1px solid #B5B6B5;
background-color: #F3F3F7;
cursor: default;
font: normal small arial, helvetica, sans-serif;
margin: 0;
padding: 0;
outline: none;
}
.goog-menuitem {
padding: 2px 1.5em 2px 5px;
margin: 0;
list-style: none;
}
.goog-menuitem-rtl {
padding: 2px 5px 2px 1.5em;
}
.goog-submenu-arrow {
text-align: right;
position: absolute;
right: 0;
left: auto;
}
.goog-menuitem-rtl .goog-submenu-arrow {
text-align: left;
position: absolute;
left: 0;
right: auto;
}
.goog-menuitem-disabled .goog-submenu-arrow {
display: none;
}
</style>
<script src="../base.js"></script>
<script>
goog.require('goog.dom');
goog.require('goog.dom.classes');
goog.require('goog.events');
goog.require('goog.positioning');
goog.require('goog.positioning.Overflow');
goog.require('goog.style');
goog.require('goog.testing.MockClock');
goog.require('goog.testing.events');
goog.require('goog.testing.jsunit');
goog.require('goog.ui.Component.EventType');
goog.require('goog.ui.Menu');
goog.require('goog.ui.MenuItem');
goog.require('goog.ui.Popup');
goog.require('goog.ui.SubMenu');
goog.require('goog.ui.SubMenuRenderer');
</script>
</head>
<body>
<script>
var menu;
var clonedMenuDom;
var mockClock;
// mock out goog.positioning.positionAtCoordinate so that
// the menu always fits. (we don't care about testing the
// dynamic menu positioning if the menu doesn't fit in the window.)
var oldPositionFn = goog.positioning.positionAtCoordinate;
goog.positioning.positionAtCoordinate = function(absolutePos, movableElement,
movableElementCorner,
opt_margin, opt_overflow) {
return oldPositionFn.call(null, absolutePos, movableElement,
movableElementCorner, opt_margin, goog.positioning.Overflow.IGNORE);
};
function setUp() {
clonedMenuDom = goog.dom.getElement('demoMenu').cloneNode(true);
menu = new goog.ui.Menu();
}
function tearDown() {
document.body.style.direction = 'ltr';
menu.dispose();
var element = goog.dom.getElement('demoMenu');
element.parentNode.replaceChild(clonedMenuDom, element);
goog.dom.getElement('sandbox').innerHTML = '';
if (mockClock) {
mockClock.uninstall();
mockClock = null;
}
}
function assertKeyHandlingIsCorrect(keyToOpenSubMenu, keyToCloseSubMenu) {
menu.setFocusable(true);
menu.decorate(goog.dom.getElement('demoMenu'));
var KeyCodes = goog.events.KeyCodes;
var plainItem = menu.getChildAt(0);
plainItem.setMnemonic(KeyCodes.F);
var subMenuItem1 = menu.getChildAt(1);
subMenuItem1.setMnemonic(KeyCodes.S);
var subMenuItem1Menu = subMenuItem1.getMenu();
menu.setHighlighted(plainItem);
var fireKeySequence = goog.testing.events.fireKeySequence;
assertTrue(
'Expected OpenSubMenu key to not be handled',
fireKeySequence(plainItem.getElement(), keyToOpenSubMenu));
assertFalse(subMenuItem1Menu.isVisible());
assertFalse(
'Expected F key to be handled',
fireKeySequence(plainItem.getElement(), KeyCodes.F));
assertFalse(
'Expected DOWN key to be handled',
fireKeySequence(plainItem.getElement(), KeyCodes.DOWN));
assertEquals(subMenuItem1, menu.getChildAt(1));
assertFalse(
'Expected OpenSubMenu key to be handled',
fireKeySequence(subMenuItem1.getElement(), keyToOpenSubMenu));
assertTrue(subMenuItem1Menu.isVisible());
assertFalse(
'Expected CloseSubMenu key to be handled',
fireKeySequence(subMenuItem1.getElement(), keyToCloseSubMenu));
assertFalse(subMenuItem1Menu.isVisible());
assertFalse(
'Expected UP key to be handled',
fireKeySequence(subMenuItem1.getElement(), KeyCodes.UP));
assertFalse(
'Expected S key to be handled',
fireKeySequence(plainItem.getElement(), KeyCodes.S));
assertTrue(subMenuItem1Menu.isVisible());
}
function testKeyHandling_ltr() {
assertKeyHandlingIsCorrect(goog.events.KeyCodes.RIGHT,
goog.events.KeyCodes.LEFT);
}
function testKeyHandling_rtl() {
document.body.style.direction = 'rtl';
assertKeyHandlingIsCorrect(goog.events.KeyCodes.LEFT,
goog.events.KeyCodes.RIGHT);
}
function testNormalLtrSubMenu() {
menu.decorate(goog.dom.getElement('demoMenu'));
var subMenu = menu.getChildAt(1);
assertArrowDirection(subMenu, false);
assertRenderDirection(subMenu, false);
assertArrowPosition(subMenu, false);
}
function testNormalRtlSubMenu() {
document.body.style.direction = 'rtl';
menu.decorate(goog.dom.getElement('demoMenu'));
var subMenu = menu.getChildAt(1);
assertArrowDirection(subMenu, true);
assertRenderDirection(subMenu, true);
assertArrowPosition(subMenu, true);
}
function testLtrSubMenuAlignedToStart() {
menu.decorate(goog.dom.getElement('demoMenu'));
var subMenu = menu.getChildAt(1);
subMenu.setAlignToEnd(false);
assertArrowDirection(subMenu, true);
assertRenderDirection(subMenu, true);
assertArrowPosition(subMenu, false);
}
function testNullContentElement() {
var subMenu = new goog.ui.SubMenu();
subMenu.setContent('demo');
}
function testRtlSubMenuAlignedToStart() {
document.body.style.direction = 'rtl';
menu.decorate(goog.dom.getElement('demoMenu'));
var subMenu = menu.getChildAt(1);
subMenu.setAlignToEnd(false);
assertArrowDirection(subMenu, false);
assertRenderDirection(subMenu, false);
assertArrowPosition(subMenu, true);
}
function testSetContentKeepsArrow_ltr() {
document.body.style.direction = 'ltr';
menu.decorate(goog.dom.getElement('demoMenu'));
var subMenu = menu.getChildAt(1);
subMenu.setAlignToEnd(false);
subMenu.setContent('test');
assertArrowDirection(subMenu, true);
assertRenderDirection(subMenu, true);
assertArrowPosition(subMenu, false);
}
function testSetContentKeepsArrow_rtl() {
document.body.style.direction = 'rtl';
menu.decorate(goog.dom.getElement('demoMenu'));
var subMenu = menu.getChildAt(1);
subMenu.setAlignToEnd(false);
subMenu.setContent('test');
assertArrowDirection(subMenu, false);
assertRenderDirection(subMenu, false);
assertArrowPosition(subMenu, true);
}
function testExitDocument() {
menu.decorate(goog.dom.getElement('demoMenu'));
var subMenu = menu.getChildAt(1);
var innerMenu = subMenu.getMenu();
assertTrue('Top-level menu was not in document', menu.isInDocument());
assertTrue('Submenu was not in document', subMenu.isInDocument());
assertTrue('Inner menu was not in document', innerMenu.isInDocument());
menu.exitDocument();
assertFalse('Top-level menu was in document', menu.isInDocument());
assertFalse('Submenu was in document', subMenu.isInDocument());
assertFalse('Inner menu was in document', innerMenu.isInDocument());
}
function testDisposal() {
menu.decorate(goog.dom.getElement('demoMenu'));
var subMenu = menu.getChildAt(1);
var innerMenu = subMenu.getMenu();
menu.dispose();
assert('Top-level menu was not disposed', menu.getDisposed());
assert('Submenu was not disposed', subMenu.getDisposed());
assert('Inner menu was not disposed', innerMenu.getDisposed());
}
function testShowAndDismissSubMenu() {
var openEventDispatched = false;
var closeEventDispatched = false;
function handleEvent(e) {
switch (e.type) {
case goog.ui.Component.EventType.OPEN:
openEventDispatched = true;
break;
case goog.ui.Component.EventType.CLOSE:
closeEventDispatched = true;
break;
default:
fail('Invalid event type: ' + e.type);
}
}
menu.decorate(goog.dom.getElement('demoMenu'));
var subMenu = menu.getChildAt(1);
subMenu.setHighlighted(true);
goog.events.listen(subMenu, [
goog.ui.Component.EventType.OPEN,
goog.ui.Component.EventType.CLOSE
], handleEvent);
assertFalse('Submenu must not have "-open" CSS class',
goog.dom.classes.has(subMenu.getElement(), 'goog-submenu-open'));
assertFalse('Popup menu must not be visible',
subMenu.getMenu().isVisible());
assertFalse('No OPEN event must have been dispatched', openEventDispatched);
assertFalse('No CLOSE event must have been dispatched', closeEventDispatched);
subMenu.showSubMenu();
assertTrue('Submenu must have "-open" CSS class',
goog.dom.classes.has(subMenu.getElement(), 'goog-submenu-open'));
assertTrue('Popup menu must be visible',
subMenu.getMenu().isVisible());
assertTrue('OPEN event must have been dispatched', openEventDispatched);
assertFalse('No CLOSE event must have been dispatched', closeEventDispatched);
subMenu.dismissSubMenu();
assertFalse('Submenu must not have "-open" CSS class',
goog.dom.classes.has(subMenu.getElement(), 'goog-submenu-open'));
assertFalse('Popup menu must not be visible',
subMenu.getMenu().isVisible());
assertTrue('CLOSE event must have been dispatched', closeEventDispatched);
goog.events.unlisten(subMenu, [
goog.ui.Component.EventType.OPEN,
goog.ui.Component.EventType.CLOSE
], handleEvent);
}
function testLazyInstantiateSubMenu() {
menu.decorate(goog.dom.getElement('demoMenu'));
var subMenu = menu.getChildAt(1);
subMenu.setHighlighted(true);
var lazyMenu;
var key = goog.events.listen(subMenu, goog.ui.Component.EventType.OPEN,
function(e) {
lazyMenu = new goog.ui.Menu();
lazyMenu.addItem(new goog.ui.MenuItem('foo'));
lazyMenu.addItem(new goog.ui.MenuItem('bar'));
subMenu.setMenu(lazyMenu, /* opt_internal */ false);
});
subMenu.showSubMenu();
assertNotNull('Popup menu must have been created', lazyMenu);
assertEquals('Popup menu must be a child of the submenu', subMenu,
lazyMenu.getParent());
assertTrue('Popup menu must have been rendered', lazyMenu.isInDocument());
assertTrue('Popup menu must be visible', lazyMenu.isVisible());
menu.dispose();
assertTrue('Submenu must have been disposed of', subMenu.isDisposed());
assertFalse('Popup menu must not have been disposed of',
lazyMenu.isDisposed());
lazyMenu.dispose();
goog.events.unlistenByKey(key);
}
function testReusableMenu() {
var subMenuOne = new goog.ui.SubMenu('SubMenu One');
var subMenuTwo = new goog.ui.SubMenu('SubMenu Two');
menu.addItem(subMenuOne);
menu.addItem(subMenuTwo);
menu.render(goog.dom.getElement('sandbox'));
// It is possible for the same popup menu to be shared between different
// submenus.
var sharedMenu = new goog.ui.Menu();
sharedMenu.addItem(new goog.ui.MenuItem('Hello'));
sharedMenu.addItem(new goog.ui.MenuItem('World'));
assertNull('Shared menu must not have a parent', sharedMenu.getParent());
subMenuOne.setMenu(sharedMenu);
assertEquals('SubMenuOne must point to the shared menu', sharedMenu,
subMenuOne.getMenu());
assertEquals('SubMenuOne must be the shared menu\'s parent', subMenuOne,
sharedMenu.getParent());
subMenuTwo.setMenu(sharedMenu);
assertEquals('SubMenuTwo must point to the shared menu', sharedMenu,
subMenuTwo.getMenu());
assertEquals('SubMenuTwo must be the shared menu\'s parent', subMenuTwo,
sharedMenu.getParent());
assertEquals('SubMenuOne must still point to the shared menu', sharedMenu,
subMenuOne.getMenu());
menu.setHighlighted(subMenuOne);
subMenuOne.showSubMenu();
assertEquals('SubMenuOne must point to the shared menu', sharedMenu,
subMenuOne.getMenu());
assertEquals('SubMenuOne must be the shared menu\'s parent', subMenuOne,
sharedMenu.getParent());
assertEquals('SubMenuTwo must still point to the shared menu', sharedMenu,
subMenuTwo.getMenu());
assertTrue('Shared menu must be visible', sharedMenu.isVisible());
menu.setHighlighted(subMenuTwo);
subMenuTwo.showSubMenu();
assertEquals('SubMenuTwo must point to the shared menu', sharedMenu,
subMenuTwo.getMenu());
assertEquals('SubMenuTwo must be the shared menu\'s parent', subMenuTwo,
sharedMenu.getParent());
assertEquals('SubMenuOne must still point to the shared menu', sharedMenu,
subMenuOne.getMenu());
assertTrue('Shared menu must be visible', sharedMenu.isVisible());
}
/**
* If you remove a submenu in the interval between when a mouseover event
* is fired on it, and showSubMenu() is called, showSubMenu causes a null
* value to be dereferenced. This test validates that the fix for this works.
* (See bug 1823144).
*/
function testDeleteItemDuringSubmenuDisplayInterval() {
mockClock = new goog.testing.MockClock(true);
var submenu = new goog.ui.SubMenu('submenu');
submenu.addItem(new goog.ui.MenuItem("submenu item 1"));
menu.addItem(submenu);
// Trigger mouseover, and remove item before showSubMenu can be called.
var e = new goog.events.Event();
submenu.handleMouseOver(e);
menu.removeItem(submenu);
mockClock.tick(goog.ui.SubMenu.MENU_DELAY_MS);
// (No JS error should occur.)
}
function testShowSubMenuAfterRemoval() {
var submenu = new goog.ui.SubMenu('submenu');
menu.addItem(submenu);
menu.removeItem(submenu);
submenu.showSubMenu();
// (No JS error should occur.)
}
function testSubmenuSelectable() {
var submenu = new goog.ui.SubMenu('submenu');
submenu.addItem(new goog.ui.MenuItem('submenu item 1'));
menu.addItem(submenu);
submenu.setSelectable(true);
var numClicks = 0;
var menuClickedFn = function(e) {
numClicks++;
}
goog.events.listen(submenu, goog.ui.Component.EventType.ACTION,
menuClickedFn);
submenu.performActionInternal(null);
submenu.performActionInternal(null);
assertEquals('The submenu should have fired an event', 2, numClicks);
submenu.setSelectable(false);
submenu.performActionInternal(null);
assertEquals('The submenu should not have fired any further events', 2,
numClicks);
}
/**
* Asserts that this sub menu renders in the right direction relative to
* the parent menu.
* @param {goog.ui.SubMenu} subMenu The sub menu.
* @param {boolean} left True for left-pointing, false for right-pointing.
*/
function assertRenderDirection(subMenu, left) {
subMenu.getParent().setHighlighted(subMenu);
subMenu.showSubMenu();
var menuItemPosition = goog.style.getPageOffset(subMenu.getElement());
var menuPosition = goog.style.getPageOffset(subMenu.getMenu().getElement());
assert(Math.abs(menuItemPosition.y - menuPosition.y) < 5);
assertEquals(
"Menu at: " + menuPosition.x +
", submenu item at: " + menuItemPosition.x,
left, menuPosition.x < menuItemPosition.x);
}
/**
* Asserts that this sub menu has a properly-oriented arrow.
* @param {goog.ui.SubMenu} subMenu The sub menu.
* @param {boolean} left True for left-pointing, false for right-pointing.
*/
function assertArrowDirection(subMenu, left) {
assertEquals(
left ? goog.ui.SubMenuRenderer.LEFT_ARROW_ :
goog.ui.SubMenuRenderer.RIGHT_ARROW_,
getArrowElement(subMenu).innerHTML);
}
/**
* Asserts that the arrow position is correct.
* @param {goog.ui.SubMenu} subMenu The sub menu.
* @param {boolean} leftAlign True for left-aligned, false for right-aligned.
*/
function assertArrowPosition(subMenu, left) {
var arrow = getArrowElement(subMenu);
var expectedLeft =
left ? 0 : arrow.offsetParent.offsetWidth - arrow.offsetWidth;
var actualLeft = arrow.offsetLeft;
assertTrue('Expected left offset: ' + expectedLeft + '\n' +
'Actual left offset: ' + actualLeft + '\n',
Math.abs(expectedLeft - actualLeft) < 5);
}
/**
* Gets the arrow element of a sub menu.
* @param {goog.ui.SubMenu} subMenu The sub menu.
* @return {Element} The arrow.
*/
function getArrowElement(subMenu) {
return subMenu.getContentElement().lastChild;
}
</script>
<p>
Here's a menu (with submenus) defined in markup:
</p>
<div id="demoMenu" class="goog-menu">
<div class="goog-menuitem">Open...</div>
<div class="goog-submenu">Open Recent
<div class="goog-menu">
<div class="goog-menuitem">Annual Report.pdf</div>
<div class="goog-menuitem">Quarterly Update.pdf</div>
<div class="goog-menuitem">Enemies List.txt</div>
<div class="goog-submenu">More
<div class="goog-menu">
<div class="goog-menuitem">Foo.txt</div>
<div class="goog-menuitem">Bar.txt</div>
</div>
</div>
</div>
</div>
</div>
<div id="sandbox"></div>
</body>
</html>
|
