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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: attila@google.com (Attila Bodis)
-->
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Closure Unit Tests - goog.ui.TabBar</title>
<script src="../base.js"></script>
<script>
goog.require('goog.dom');
goog.require('goog.events.Event');
goog.require('goog.events.EventType');
goog.require('goog.events.KeyCodes');
goog.require('goog.testing.jsunit');
goog.require('goog.ui.Component');
goog.require('goog.ui.Component.EventType');
goog.require('goog.ui.Container.Orientation');
goog.require('goog.ui.Tab');
goog.require('goog.ui.TabBar');
goog.require('goog.ui.TabBar.Location');
goog.require('goog.ui.TabBarRenderer');
</script>
</head>
<body>
<div id="sandbox"></div>
<script>
var sandbox = goog.dom.getElement('sandbox');
var tabBar;
// Fake keyboard event object.
function FakeKeyEvent(keyCode) {
this.keyCode = keyCode;
this.defaultPrevented = false;
this.propagationStopped = false;
}
FakeKeyEvent.prototype.preventDefault = function() {
this.defaultPrevented = true;
};
FakeKeyEvent.prototype.stopPropagation = function() {
this.propagationStopped = true;
};
function setUp() {
tabBar = new goog.ui.TabBar();
}
function tearDown() {
tabBar.dispose();
goog.dom.removeChildren(sandbox);
}
function testConstructor() {
assertNotNull('Tab bar must not be null', tabBar);
assertEquals('Tab bar renderer must default to expected value',
goog.ui.TabBarRenderer.getInstance(), tabBar.getRenderer());
assertEquals('Tab bar location must default to expected value',
goog.ui.TabBar.Location.TOP, tabBar.getLocation());
assertEquals('Tab bar orientation must default to expected value',
goog.ui.Container.Orientation.HORIZONTAL, tabBar.getOrientation());
var fakeRenderer = {};
var fakeDomHelper = {};
var bar = new goog.ui.TabBar(goog.ui.TabBar.Location.START, fakeRenderer,
fakeDomHelper);
assertNotNull('Tab bar must not be null', bar);
assertEquals('Tab bar renderer must have expected value',
fakeRenderer, bar.getRenderer());
assertEquals('Tab bar DOM helper must have expected value',
fakeDomHelper, bar.getDomHelper());
assertEquals('Tab bar location must have expected value',
goog.ui.TabBar.Location.START, bar.getLocation());
assertEquals('Tab bar orientation must have expected value',
goog.ui.Container.Orientation.VERTICAL, bar.getOrientation());
bar.dispose();
}
function testDispose() {
// Set tabBar.selectedTab_ to something non-null, just to test dispose().
tabBar.selectedTab_ = {};
assertNotNull('Selected tab must be non-null', tabBar.getSelectedTab());
assertFalse('Tab bar must not have been disposed of',
tabBar.isDisposed());
tabBar.dispose();
assertNull('Selected tab must be null', tabBar.getSelectedTab());
assertTrue('Tab bar must have been disposed of', tabBar.isDisposed());
}
function testAddRemoveChild() {
assertNull('No tab must be selected', tabBar.getSelectedTab());
var first = new goog.ui.Tab('First');
tabBar.addChild(first);
assertEquals('First tab must have been added at the expected index', 0,
tabBar.indexOfChild(first));
first.setSelected(true);
assertEquals('First tab must be selected', 0,
tabBar.getSelectedTabIndex());
var second = new goog.ui.Tab('Second');
tabBar.addChild(second);
assertEquals('Second tab must have been added at the expected index', 1,
tabBar.indexOfChild(second));
assertEquals('First tab must remain selected', 0,
tabBar.getSelectedTabIndex());
var firstRemoved = tabBar.removeChild(first);
assertEquals('removeChild() must return the removed tab', first,
firstRemoved);
assertEquals('First tab must no longer be in the tab bar', -1,
tabBar.indexOfChild(first));
assertEquals('Second tab must be at the expected index', 0,
tabBar.indexOfChild(second));
assertFalse('First tab must no longer be selected', first.isSelected());
assertTrue('Remaining tab must be selected', second.isSelected());
var secondRemoved = tabBar.removeChild(second);
assertEquals('removeChild() must return the removed tab', second,
secondRemoved);
assertFalse('Tab must no longer be selected', second.isSelected());
assertNull('No tab must be selected', tabBar.getSelectedTab());
}
function testGetSetLocation() {
assertEquals('Location must default to TOP', goog.ui.TabBar.Location.TOP,
tabBar.getLocation());
tabBar.setLocation(goog.ui.TabBar.Location.START);
assertEquals('Location must have expected value',
goog.ui.TabBar.Location.START, tabBar.getLocation());
tabBar.createDom();
assertThrows('Attempting to change the location after the tab bar has ' +
'been rendered must throw error',
function() {
tabBar.setLocation(goog.ui.TabBar.Location.BOTTOM);
});
}
function testIsSetAutoSelectTabs() {
assertTrue('Tab bar must auto-select tabs by default',
tabBar.isAutoSelectTabs());
tabBar.setAutoSelectTabs(false);
assertFalse('Tab bar must no longer auto-select tabs by default',
tabBar.isAutoSelectTabs());
tabBar.render(sandbox);
assertFalse('Rendering must not change auto-select setting',
tabBar.isAutoSelectTabs());
tabBar.setAutoSelectTabs(true);
assertTrue('Tab bar must once again auto-select tabs',
tabBar.isAutoSelectTabs());
}
function setHighlightedIndexFromKeyEvent() {
var foo, bar, baz;
// Create a tab bar with some tabs.
tabBar.addChild(foo = new goog.ui.Tab('foo'));
tabBar.addChild(bar = new goog.ui.Tab('bar'));
tabBar.addChild(baz = new goog.ui.Tab('baz'));
// Verify baseline assumptions.
assertNull('No tab must be highlighted', tabBar.getHighlighted());
assertNull('No tab must be selected', tabBar.getSelectedTab());
assertTrue('Tab bar must auto-select tabs on keyboard highlight',
tabBar.isAutoSelectTabs());
// Highlight and selection must move together.
tabBar.setHighlightedIndexFromKeyEvent(0);
assertTrue('Foo must be highlighted', foo.isHighlighted());
assertTrue('Foo must be selected', foo.isSelected());
// Highlight and selection must move together.
tabBar.setHighlightedIndexFromKeyEvent(1);
assertFalse('Foo must no longer be highlighted', foo.isHighlighted());
assertFalse('Foo must no longer be selected', foo.isSelected());
assertTrue('Bar must be highlighted', bar.isHighlighted());
assertTrue('Bar must be selected', bar.isSelected());
// Turn off auto-select-on-keyboard-highlight.
tabBar.setAutoSelectTabs(false);
// Selection must not change; only highlight should move.
tabBar.setHighlightedIndexFromKeyEvent(2);
assertFalse('Bar must no longer be highlighted', bar.isHighlighted());
assertTrue('Bar must remain selected', bar.isSelected());
assertTrue('Baz must be highlighted', baz.isHighlighted());
assertFalse('Baz must not be selected', baz.isSelected());
}
function testGetSetSelectedTab() {
var foo, bar, baz;
// Create a tab bar with some tabs.
tabBar.addChild(foo = new goog.ui.Tab('foo'));
tabBar.addChild(bar = new goog.ui.Tab('bar'));
tabBar.addChild(baz = new goog.ui.Tab('baz'));
assertNull('No tab must be selected', tabBar.getSelectedTab());
tabBar.setSelectedTab(baz);
assertTrue('Baz must be selected', baz.isSelected());
assertEquals('Baz must be the selected tab', baz,
tabBar.getSelectedTab());
tabBar.setSelectedTab(foo);
assertFalse('Baz must no longer be selected', baz.isSelected());
assertTrue('Foo must be selected', foo.isSelected());
assertEquals('Foo must be the selected tab', foo,
tabBar.getSelectedTab());
tabBar.setSelectedTab(foo);
assertTrue('Foo must remain selected', foo.isSelected());
assertEquals('Foo must remain the selected tab', foo,
tabBar.getSelectedTab());
tabBar.setSelectedTab(null);
assertFalse('Foo must no longer be selected', foo.isSelected());
assertNull('No tab must be selected', tabBar.getSelectedTab());
}
function testGetSetSelectedTabIndex() {
var foo, bar, baz;
// Create a tab bar with some tabs.
tabBar.addChildAt(foo = new goog.ui.Tab('foo'), 0);
tabBar.addChildAt(bar = new goog.ui.Tab('bar'), 1);
tabBar.addChildAt(baz = new goog.ui.Tab('baz'), 2);
assertEquals('No tab must be selected', -1, tabBar.getSelectedTabIndex());
tabBar.setSelectedTabIndex(2);
assertTrue('Baz must be selected', baz.isSelected());
assertEquals('Baz must be the selected tab', 2,
tabBar.getSelectedTabIndex());
tabBar.setSelectedTabIndex(0);
assertFalse('Baz must no longer be selected', baz.isSelected());
assertTrue('Foo must be selected', foo.isSelected());
assertEquals('Foo must be the selected tab', 0,
tabBar.getSelectedTabIndex());
tabBar.setSelectedTabIndex(0);
assertTrue('Foo must remain selected', foo.isSelected());
assertEquals('Foo must remain the selected tab', 0,
tabBar.getSelectedTabIndex());
tabBar.setSelectedTabIndex(-1);
assertFalse('Foo must no longer be selected', foo.isSelected());
assertEquals('No tab must be selected', -1, tabBar.getSelectedTabIndex());
}
function testDeselectIfSelected() {
var foo, bar, baz;
// Create a tab bar with some tabs.
tabBar.addChild(foo = new goog.ui.Tab('foo'));
tabBar.addChild(bar = new goog.ui.Tab('bar'));
tabBar.addChild(baz = new goog.ui.Tab('baz'));
// Start with the middle tab selected.
bar.setSelected(true);
assertTrue('Bar must be selected', bar.isSelected());
assertEquals('Bar must be the selected tab', bar,
tabBar.getSelectedTab());
// Should be a no-op.
tabBar.deselectIfSelected(null);
assertTrue('Bar must remain selected', bar.isSelected());
assertEquals('Bar must remain the selected tab', bar,
tabBar.getSelectedTab());
// Should be a no-op.
tabBar.deselectIfSelected(foo);
assertTrue('Bar must remain selected', bar.isSelected());
assertEquals('Bar must remain the selected tab', bar,
tabBar.getSelectedTab());
// Should deselect bar and select the previous tab (foo).
tabBar.deselectIfSelected(bar);
assertFalse('Bar must no longer be selected', bar.isSelected());
assertTrue('Foo must be selected', foo.isSelected());
assertEquals('Foo must be the selected tab', foo,
tabBar.getSelectedTab());
// Should deselect foo and select the next tab (bar).
tabBar.deselectIfSelected(foo);
assertFalse('Foo must no longer be selected', foo.isSelected());
assertTrue('Bar must be selected', bar.isSelected());
assertEquals('Bar must be the selected tab', bar,
tabBar.getSelectedTab());
}
function testHandleTabSelect() {
var foo, bar, baz;
// Create a tab bar with some tabs.
tabBar.addChild(foo = new goog.ui.Tab('foo'));
tabBar.addChild(bar = new goog.ui.Tab('bar'));
tabBar.addChild(baz = new goog.ui.Tab('baz'));
assertNull('No tab must be selected', tabBar.getSelectedTab());
tabBar.handleTabSelect(new goog.events.Event(
goog.ui.Component.EventType.SELECT, bar));
assertEquals('Bar must be the selected tab', bar,
tabBar.getSelectedTab());
tabBar.handleTabSelect(new goog.events.Event(
goog.ui.Component.EventType.SELECT, bar));
assertEquals('Bar must remain selected tab', bar,
tabBar.getSelectedTab());
tabBar.handleTabSelect(new goog.events.Event(
goog.ui.Component.EventType.SELECT, foo));
assertEquals('Foo must now be the selected tab', foo,
tabBar.getSelectedTab());
}
function testHandleTabUnselect() {
var foo, bar, baz;
// Create a tab bar with some tabs.
tabBar.addChild(foo = new goog.ui.Tab('foo'));
tabBar.addChild(bar = new goog.ui.Tab('bar'));
tabBar.addChild(baz = new goog.ui.Tab('baz'));
bar.setSelected(true);
assertEquals('Bar must be the selected tab', bar,
tabBar.getSelectedTab());
tabBar.handleTabUnselect(new goog.events.Event(
goog.ui.Component.EventType.UNSELECT, foo));
assertEquals('Bar must remain the selected tab', bar,
tabBar.getSelectedTab());
tabBar.handleTabUnselect(new goog.events.Event(
goog.ui.Component.EventType.SELECT, bar));
assertNull('No tab must be selected', tabBar.getSelectedTab());
}
function testHandleTabDisable() {
var foo, bar, baz;
// Create a tab bar with some tabs.
tabBar.addChild(foo = new goog.ui.Tab('foo'));
tabBar.addChild(bar = new goog.ui.Tab('bar'));
tabBar.addChild(baz = new goog.ui.Tab('baz'));
// Start with the middle tab selected.
bar.setSelected(true);
assertTrue('Bar must be selected', bar.isSelected());
assertEquals('Bar must be the selected tab', bar,
tabBar.getSelectedTab());
// Should deselect bar and select the previous enabled, visible tab (foo).
bar.setEnabled(false);
assertFalse('Bar must no longer be selected', bar.isSelected());
assertTrue('Foo must be selected', foo.isSelected());
assertEquals('Foo must be the selected tab', foo,
tabBar.getSelectedTab());
// Should deselect foo and select the next enabled, visible tab (baz).
foo.setEnabled(false);
assertFalse('Foo must no longer be selected', foo.isSelected());
assertTrue('Baz must be selected', baz.isSelected());
assertEquals('Baz must be the selected tab', baz,
tabBar.getSelectedTab());
// Should deselect baz. Since there are no enabled, visible tabs left,
// the tab bar should have no selected tab.
baz.setEnabled(false);
assertFalse('Baz must no longer be selected', baz.isSelected());
assertNull('No tab must be selected', tabBar.getSelectedTab());
}
function testHandleTabHide() {
var foo, bar, baz;
// Create a tab bar with some tabs.
tabBar.addChild(foo = new goog.ui.Tab('foo'));
tabBar.addChild(bar = new goog.ui.Tab('bar'));
tabBar.addChild(baz = new goog.ui.Tab('baz'));
// Start with the middle tab selected.
bar.setSelected(true);
assertTrue('Bar must be selected', bar.isSelected());
assertEquals('Bar must be the selected tab', bar,
tabBar.getSelectedTab());
// Should deselect bar and select the previous enabled, visible tab (foo).
bar.setVisible(false);
assertFalse('Bar must no longer be selected', bar.isSelected());
assertTrue('Foo must be selected', foo.isSelected());
assertEquals('Foo must be the selected tab', foo,
tabBar.getSelectedTab());
// Should deselect foo and select the next enabled, visible tab (baz).
foo.setVisible(false);
assertFalse('Foo must no longer be selected', foo.isSelected());
assertTrue('Baz must be selected', baz.isSelected());
assertEquals('Baz must be the selected tab', baz,
tabBar.getSelectedTab());
// Should deselect baz. Since there are no enabled, visible tabs left,
// the tab bar should have no selected tab.
baz.setVisible(false);
assertFalse('Baz must no longer be selected', baz.isSelected());
assertNull('No tab must be selected', tabBar.getSelectedTab());
}
function testHandleFocus() {
var foo, bar, baz;
// Create a tab bar with some tabs.
tabBar.addChild(foo = new goog.ui.Tab('foo'), true);
tabBar.addChild(bar = new goog.ui.Tab('bar'), true);
tabBar.addChild(baz = new goog.ui.Tab('baz'), true);
// Render the tab bar into the document, so highlight handling works as
// expected.
tabBar.render(sandbox);
// Start with the middle tab selected.
bar.setSelected(true);
assertTrue('Bar must be selected', bar.isSelected());
assertEquals('Bar must be the selected tab', bar,
tabBar.getSelectedTab());
assertNull('No tab must be highlighted', tabBar.getHighlighted());
tabBar.handleFocus(new goog.events.Event(goog.events.EventType.FOCUS,
tabBar.getElement()));
assertTrue('Bar must be highlighted', bar.isHighlighted());
assertEquals('Bar must be the highlighted tab', bar,
tabBar.getHighlighted());
}
function testHandleFocusWithoutSelectedTab() {
var foo, bar, baz;
// Create a tab bar with some tabs.
tabBar.addChild(foo = new goog.ui.Tab('foo'), true);
tabBar.addChild(bar = new goog.ui.Tab('bar'), true);
tabBar.addChild(baz = new goog.ui.Tab('baz'), true);
// Render the tab bar into the document, so highlight handling works as
// expected.
tabBar.render(sandbox);
// Start with no tab selected.
assertNull('No tab must be selected', tabBar.getSelectedTab());
assertNull('No tab must be highlighted', tabBar.getHighlighted());
tabBar.handleFocus(new goog.events.Event(goog.events.EventType.FOCUS,
tabBar.getElement()));
assertTrue('Foo must be highlighted', foo.isHighlighted());
assertEquals('Foo must be the highlighted tab', foo,
tabBar.getHighlighted());
}
function testGetOrientationFromLocation() {
assertEquals(goog.ui.Container.Orientation.HORIZONTAL,
goog.ui.TabBar.getOrientationFromLocation(
goog.ui.TabBar.Location.TOP));
assertEquals(goog.ui.Container.Orientation.HORIZONTAL,
goog.ui.TabBar.getOrientationFromLocation(
goog.ui.TabBar.Location.BOTTOM));
assertEquals(goog.ui.Container.Orientation.VERTICAL,
goog.ui.TabBar.getOrientationFromLocation(
goog.ui.TabBar.Location.START));
assertEquals(goog.ui.Container.Orientation.VERTICAL,
goog.ui.TabBar.getOrientationFromLocation(
goog.ui.TabBar.Location.END));
}
function testKeyboardNavigation() {
var foo, bar, baz;
// Create a tab bar with some tabs.
tabBar.addChild(foo = new goog.ui.Tab('foo'), true);
tabBar.addChild(bar = new goog.ui.Tab('bar'), true);
tabBar.addChild(baz = new goog.ui.Tab('baz'), true);
tabBar.render(sandbox);
// Highlight the selected tab (this happens automatically when the tab
// bar receives keyboard focus).
tabBar.setSelectedTabIndex(0);
tabBar.getSelectedTab().setHighlighted(true);
// Count events dispatched by each tab.
var eventCount = {
'foo': {'select': 0, 'unselect': 0},
'bar': {'select': 0, 'unselect': 0},
'baz': {'select': 0, 'unselect': 0}
};
function countEvent(e) {
var tabId = e.target.getContent();
var type = e.type;
eventCount[tabId][type]++;
}
function getEventCount(tabId, type) {
return eventCount[tabId][type];
}
// Listen for SELECT and UNSELECT events on the tab bar.
goog.events.listen(tabBar, [
goog.ui.Component.EventType.SELECT,
goog.ui.Component.EventType.UNSELECT
], countEvent);
// Verify baseline assumptions.
assertTrue('Tab bar must auto-select tabs',
tabBar.isAutoSelectTabs());
assertEquals('First tab must be selected', 0,
tabBar.getSelectedTabIndex());
// Simulate a right arrow key event.
var rightEvent = new FakeKeyEvent(goog.events.KeyCodes.RIGHT);
assertTrue('Key event must have beeen handled',
tabBar.handleKeyEvent(rightEvent));
assertTrue('Key event propagation must have been stopped',
rightEvent.propagationStopped);
assertTrue('Default key event must have been prevented',
rightEvent.defaultPrevented);
assertEquals('Foo must have dispatched UNSELECT', 1,
getEventCount('foo', goog.ui.Component.EventType.UNSELECT));
assertEquals('Bar must have dispatched SELECT', 1,
getEventCount('bar', goog.ui.Component.EventType.SELECT));
assertEquals('Bar must have been selected', bar, tabBar.getSelectedTab());
// Simulate a left arrow key event.
var leftEvent = new FakeKeyEvent(goog.events.KeyCodes.LEFT);
assertTrue('Key event must have beeen handled',
tabBar.handleKeyEvent(leftEvent));
assertTrue('Key event propagation must have been stopped',
leftEvent.propagationStopped);
assertTrue('Default key event must have been prevented',
leftEvent.defaultPrevented);
assertEquals('Bar must have dispatched UNSELECT', 1,
getEventCount('bar', goog.ui.Component.EventType.UNSELECT));
assertEquals('Foo must have dispatched SELECT', 1,
getEventCount('foo', goog.ui.Component.EventType.SELECT));
assertEquals('Foo must have been selected', foo, tabBar.getSelectedTab());
// Disable tab auto-selection.
tabBar.setAutoSelectTabs(false);
// Simulate another left arrow key event.
var anotherLeftEvent = new FakeKeyEvent(goog.events.KeyCodes.LEFT);
assertTrue('Key event must have beeen handled',
tabBar.handleKeyEvent(anotherLeftEvent));
assertTrue('Key event propagation must have been stopped',
anotherLeftEvent.propagationStopped);
assertTrue('Default key event must have been prevented',
anotherLeftEvent.defaultPrevented);
assertEquals('Foo must remain selected', foo, tabBar.getSelectedTab());
assertEquals('Foo must not have dispatched another UNSELECT event', 1,
getEventCount('foo', goog.ui.Component.EventType.UNSELECT));
assertEquals('Baz must not have dispatched a SELECT event', 0,
getEventCount('baz', goog.ui.Component.EventType.SELECT));
assertFalse('Baz must not be selected', baz.isSelected());
assertTrue('Baz must be highlighted', baz.isHighlighted());
// Simulate 'g' key event.
var gEvent = new FakeKeyEvent(goog.events.KeyCodes.G);
assertFalse('Key event must not have beeen handled',
tabBar.handleKeyEvent(gEvent));
assertFalse('Key event propagation must not have been stopped',
gEvent.propagationStopped);
assertFalse('Default key event must not have been prevented',
gEvent.defaultPrevented);
assertEquals('Foo must remain selected', foo, tabBar.getSelectedTab());
// Clean up.
goog.events.unlisten(tabBar, [
goog.ui.Component.EventType.SELECT,
goog.ui.Component.EventType.UNSELECT
], countEvent);
}
function testExitAndEnterDocument() {
var component = new goog.ui.Component();
component.render(sandbox);
var tab1 = new goog.ui.Tab('tab1');
var tab2 = new goog.ui.Tab('tab2');
var tab3 = new goog.ui.Tab('tab3');
tabBar.addChild(tab1, true);
tabBar.addChild(tab2, true);
tabBar.addChild(tab3, true);
component.addChild(tabBar, true);
tab2.setSelected(true);
assertEquals(tabBar.getSelectedTab(), tab2);
component.removeChild(tabBar, true);
tab1.setSelected(true);
assertEquals(tabBar.getSelectedTab(), tab2);
component.addChild(tabBar, true);
tab3.setSelected(true);
assertEquals(tabBar.getSelectedTab(), tab3);
}
</script>
</body>
</html>
|
