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// Copyright 2012 The Closure Library Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
goog.provide('goog.ui.PaletteTest');
goog.setTestOnly('goog.ui.PaletteTest');
goog.require('goog.a11y.aria');
goog.require('goog.dom');
goog.require('goog.events');
goog.require('goog.events.EventType');
goog.require('goog.events.KeyCodes');
goog.require('goog.events.KeyEvent');
goog.require('goog.testing.events.Event');
goog.require('goog.testing.jsunit');
goog.require('goog.testing.recordFunction');
goog.require('goog.ui.Component');
goog.require('goog.ui.Container');
goog.require('goog.ui.Palette');
var palette;
var nodes;
function setUp() {
nodes = [];
for (var i = 0; i < 23; i++) {
var node = goog.dom.createTextNode('node[' + i + ']');
nodes.push(node);
}
palette = new goog.ui.Palette(nodes);
}
function tearDown() {
palette.dispose();
goog.dom.removeChildren(document.getElementById('sandbox'));
}
function testAfterHighlightListener() {
palette.setHighlightedIndex(0);
var handler = new goog.testing.recordFunction();
goog.events.listen(
palette, goog.ui.Palette.EventType.AFTER_HIGHLIGHT, handler);
palette.setHighlightedIndex(2);
assertEquals(1, handler.getCallCount());
palette.setHighlightedIndex(-1);
assertEquals(2, handler.getCallCount());
}
function testHighlightItemUpdatesParentA11yActiveDescendant() {
var container = new goog.ui.Container();
container.render(document.getElementById('sandbox'));
container.addChild(palette, true);
palette.setHighlightedItem(nodes[0]);
assertEquals(
'Node 0 cell should be the container\'s active descendant',
palette.getRenderer().getCellForItem(nodes[0]),
goog.a11y.aria.getActiveDescendant(container.getElement()));
palette.setHighlightedItem(nodes[1]);
assertEquals(
'Node 1 cell should be the container\'s active descendant',
palette.getRenderer().getCellForItem(nodes[1]),
goog.a11y.aria.getActiveDescendant(container.getElement()));
palette.setHighlightedItem();
assertNull(
'Container should have no active descendant',
goog.a11y.aria.getActiveDescendant(container.getElement()));
container.dispose();
}
function testHighlightCellEvents() {
var container = new goog.ui.Container();
container.render(document.getElementById('sandbox'));
container.addChild(palette, true);
var renderer = palette.getRenderer();
var events = [];
var targetElements = [];
var handleEvent = function(e) {
events.push(e);
targetElements.push(e.target.getElement());
};
palette.getHandler().listen(
palette,
[
this, goog.ui.Component.EventType.HIGHLIGHT, this,
goog.ui.Component.EventType.UNHIGHLIGHT
],
handleEvent);
// Test highlight events on first selection
palette.setHighlightedItem(nodes[0]);
assertEquals('Should have fired 1 event', 1, events.length);
assertEquals(
'HIGHLIGHT event should be fired', goog.ui.Component.EventType.HIGHLIGHT,
events[0].type);
assertEquals(
'Event should be fired for node[0] cell',
renderer.getCellForItem(nodes[0]), targetElements[0]);
events = [];
targetElements = [];
// Only fire highlight events when there is a selection change
palette.setHighlightedItem(nodes[0]);
assertEquals('Should have fired 0 events', 0, events.length);
// Test highlight events on cell change
palette.setHighlightedItem(nodes[1]);
assertEquals('Should have fired 2 events', 2, events.length);
var unhighlightEvent = events.shift();
var highlightEvent = events.shift();
assertEquals(
'UNHIGHLIGHT should be fired first',
goog.ui.Component.EventType.UNHIGHLIGHT, unhighlightEvent.type);
assertEquals(
'UNHIGHLIGHT should be fired for node[0] cell',
renderer.getCellForItem(nodes[0]), targetElements[0]);
assertEquals(
'HIGHLIGHT should be fired after UNHIGHLIGHT',
goog.ui.Component.EventType.HIGHLIGHT, highlightEvent.type);
assertEquals(
'HIGHLIGHT should be fired for node[1] cell',
renderer.getCellForItem(nodes[1]), targetElements[1]);
events = [];
targetElements = [];
// Test highlight events when a cell is unselected
palette.setHighlightedItem();
assertEquals('Should have fired 1 event', 1, events.length);
assertEquals(
'UNHIGHLIGHT event should be fired',
goog.ui.Component.EventType.UNHIGHLIGHT, events[0].type);
assertEquals(
'Event should be fired for node[1] cell',
renderer.getCellForItem(nodes[1]), targetElements[0]);
}
function testHandleKeyEventLoops() {
palette.setHighlightedIndex(0);
var createKeyEvent = function(keyCode) {
return new goog.events.KeyEvent(
keyCode, 0 /* charCode */, false /* repeat */,
new goog.testing.events.Event(goog.events.EventType.KEYDOWN));
};
palette.handleKeyEvent(createKeyEvent(goog.events.KeyCodes.LEFT));
assertEquals(nodes.length - 1, palette.getHighlightedIndex());
palette.handleKeyEvent(createKeyEvent(goog.events.KeyCodes.RIGHT));
assertEquals(0, palette.getHighlightedIndex());
}
function testSetHighlight() {
assertEquals(-1, palette.getHighlightedIndex());
palette.setHighlighted(true);
assertEquals(0, palette.getHighlightedIndex());
palette.setHighlightedIndex(3);
palette.setHighlighted(false);
assertEquals(-1, palette.getHighlightedIndex());
palette.setHighlighted(true);
assertEquals(3, palette.getHighlightedIndex());
palette.setHighlighted(false);
palette.setHighlightedIndex(5);
palette.setHighlighted(true);
assertEquals(5, palette.getHighlightedIndex());
palette.setHighlighted(true);
assertEquals(5, palette.getHighlightedIndex());
}
function testPerformActionInternal() {
var container = new goog.ui.Container();
container.render(document.getElementById('sandbox'));
container.addChild(palette, true);
palette.setActive(true);
palette.setSelectedIndex(1);
palette.setHighlightedIndex(3);
palette.setHighlighted(true);
assertEquals(1, palette.getSelectedIndex());
assertEquals(3, palette.getHighlightedIndex());
// Click somewhere in the palette, but not inside a cell.
var mouseUp = new goog.events.BrowserEvent(
{type: 'mouseup', button: 1, target: palette});
palette.handleMouseUp(mouseUp);
// Highlight and selection are both unchanged (user did not select anything).
assertEquals(1, palette.getSelectedIndex());
assertEquals(3, palette.getHighlightedIndex());
}
function testSetAriaLabel() {
assertNull(
'Palette must not have aria label by default', palette.getAriaLabel());
palette.setAriaLabel('My Palette');
palette.render();
var element = palette.getElementStrict();
assertNotNull('Element must not be null', element);
assertEquals(
'Palette element must have expected aria-label', 'My Palette',
element.getAttribute('aria-label'));
assertEquals(
'Palette element must have expected aria role', 'grid',
element.getAttribute('role'));
palette.setAriaLabel('My new Palette');
assertEquals(
'Palette element must have updated aria-label', 'My new Palette',
element.getAttribute('aria-label'));
}
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