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<!DOCTYPE html>
<html>
<!--
Copyright 2009 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: arv@google.com (Erik Arvidsson)
-->
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Closure Unit Tests - goog.ui.tree.BaseNode</title>
<script src="../../base.js"></script>
<script>
goog.require('goog.dom');
goog.require('goog.dom.classes');
goog.require('goog.testing.jsunit');
goog.require('goog.ui.Component');
goog.require('goog.ui.tree.BaseNode');
goog.require('goog.ui.tree.BaseNode.EventType');
goog.require('goog.ui.tree.TreeControl');
goog.require('goog.ui.tree.TreeNode');
</script>
</head>
<body>
<script>
function testAdd() {
var node1 = new goog.ui.tree.TreeNode('node1');
var node2 = new goog.ui.tree.TreeNode('node2');
var node3 = new goog.ui.tree.TreeNode('node3');
var node4 = new goog.ui.tree.TreeNode('node4');
assertEquals('node2 added', node2, node1.add(node2));
assertEquals('node3 added', node3, node1.add(node3));
assertEquals('node4 added', node4, node1.add(node4, node3));
assertEquals('node1 has 3 children', 3, node1.getChildCount());
assertEquals('first child', node2, node1.getChildAt(0));
assertEquals('second child', node4, node1.getChildAt(1));
assertEquals('third child', node3, node1.getChildAt(2));
assertNull('node1 has no parent', node1.getParent());
assertEquals('the parent of node2 is node1', node1, node2.getParent());
assertEquals('node4 moved under node2', node4, node2.add(node4));
assertEquals('node1 has 2 children', 2, node1.getChildCount());
assertEquals('node2 has 1 child', 1, node2.getChildCount());
assertEquals('the child of node2 is node4', node4, node2.getChildAt(0));
assertEquals('the parent of node4 is node2', node2, node4.getParent());
}
function testExpandIconAfterAddChild() {
var tree = new goog.ui.tree.TreeControl('root');
var node1 = new goog.ui.tree.TreeNode('node1')
var node2 = new goog.ui.tree.TreeNode('node2')
tree.render(goog.dom.createDom('div'));
tree.addChild(node1);
node1.addChild(node2);
assertTrue('expand icon of node1 changed to L+', goog.dom.classes.has(
node1.getExpandIconElement(), 'goog-tree-expand-icon-lplus'));
node1.removeChild(node2);
assertFalse('expand icon of node1 changed back to L', goog.dom.classes.has(
node1.getExpandIconElement(), 'goog-tree-expand-icon-lplus'));
}
function testExpandEvents() {
var n = new goog.ui.tree.BaseNode('');
n.getTree = function() {};
var expanded = false;
n.setExpanded(expanded);
assertEquals(expanded, n.getExpanded());
var callCount = 0;
n.addEventListener(goog.ui.tree.BaseNode.EventType.BEFORE_EXPAND,
function(e) {
assertEquals(expanded, n.getExpanded());
callCount++;
});
n.addEventListener(goog.ui.tree.BaseNode.EventType.EXPAND,
function(e) {
assertEquals(!expanded, n.getExpanded());
callCount++;
});
n.setExpanded(!expanded);
assertEquals(2, callCount);
}
function testExpandEvents2() {
var n = new goog.ui.tree.BaseNode('');
n.getTree = function() {};
var expanded = true;
n.setExpanded(expanded);
assertEquals(expanded, n.getExpanded());
var callCount = 0;
n.addEventListener(goog.ui.tree.BaseNode.EventType.BEFORE_COLLAPSE,
function(e) {
assertEquals(expanded, n.getExpanded());
callCount++;
});
n.addEventListener(goog.ui.tree.BaseNode.EventType.COLLAPSE,
function(e) {
assertEquals(!expanded, n.getExpanded());
callCount++;
});
n.setExpanded(!expanded);
assertEquals(2, callCount);
}
function testExpandEventsPreventDefault() {
var n = new goog.ui.tree.BaseNode('');
n.getTree = function() {};
var expanded = true;
n.setExpanded(expanded);
assertEquals(expanded, n.getExpanded());
var callCount = 0;
n.addEventListener(goog.ui.tree.BaseNode.EventType.BEFORE_COLLAPSE,
function(e) {
assertEquals(expanded, n.getExpanded());
e.preventDefault();
callCount++;
});
n.addEventListener(goog.ui.tree.BaseNode.EventType.COLLAPSE,
function(e) {
fail('Should not fire COLLAPSE');
});
n.setExpanded(!expanded);
assertEquals(1, callCount);
}
function testExpandEventsPreventDefault2() {
var n = new goog.ui.tree.BaseNode('');
n.getTree = function() {};
var expanded = false;
n.setExpanded(expanded);
assertEquals(expanded, n.getExpanded());
var callCount = 0;
n.addEventListener(goog.ui.tree.BaseNode.EventType.BEFORE_EXPAND,
function(e) {
assertEquals(expanded, n.getExpanded());
e.preventDefault();
callCount++;
});
n.addEventListener(goog.ui.tree.BaseNode.EventType.EXPAND,
function(e) {
fail('Should not fire EXPAND');
});
n.setExpanded(!expanded);
assertEquals(1, callCount);
}
function testGetNextShownNode() {
var tree = new goog.ui.tree.TreeControl('tree');
assertNull('next node for unpopulated tree', tree.getNextShownNode());
var node1 = new goog.ui.tree.TreeNode('node1');
var node2 = new goog.ui.tree.TreeNode('node2');
var node3 = new goog.ui.tree.TreeNode('node3');
node1.add(node2);
node1.add(node3);
assertNull('next node for unexpanded node1', node1.getNextShownNode());
node1.expand();
assertEquals('next node for expanded node1', node2, node1.getNextShownNode());
assertEquals('next node for node2', node3, node2.getNextShownNode());
assertNull('next node for node3', node3.getNextShownNode());
tree.add(node1);
assertEquals('next node for populated tree', node1, tree.getNextShownNode());
assertNull('next node for node3 inside the tree', node3.getNextShownNode());
var component = new goog.ui.Component();
component.addChild(tree);
assertNull('next node for node3 inside the tree if the tree has parent',
node3.getNextShownNode());
}
function testInvisibleNodesInUnrenderedTree() {
var tree = new goog.ui.tree.TreeControl('tree');
var a = new goog.ui.tree.TreeNode('a');
var b = new goog.ui.tree.TreeNode('b');
tree.add(a);
a.add(b);
tree.render();
var textContent =
tree.getElement().textContent || tree.getElement().innerText;
assertContains('Node should be rendered.', 'tree', textContent);
assertContains('Node should be rendered.', 'a', textContent);
assertNotContains('Unexpanded node child should not be rendered.',
'b', textContent);
a.expand();
var textContent =
tree.getElement().textContent || tree.getElement().innerText;
assertContains('Node should be rendered.', 'tree', textContent);
assertContains('Node should be rendered.', 'a', textContent);
assertContains('Expanded node child should be rendered.', 'b', textContent);
tree.dispose();
}
function testInvisibleNodesInRenderedTree() {
var tree = new goog.ui.tree.TreeControl('tree');
tree.render();
var a = new goog.ui.tree.TreeNode('a');
var b = new goog.ui.tree.TreeNode('b');
tree.add(a);
a.add(b);
var textContent =
tree.getElement().textContent || tree.getElement().innerText;
assertContains('Node should be rendered.', 'tree', textContent);
assertContains('Node should be rendered.', 'a', textContent);
assertNotContains('Unexpanded node child should not be rendered.',
'b', textContent);
a.expand();
var textContent =
tree.getElement().textContent || tree.getElement().innerText;
assertContains('Node should be rendered.', 'tree', textContent);
assertContains('Node should be rendered.', 'a', textContent);
assertContains('Expanded node child should be rendered.', 'b', textContent);
tree.dispose();
}
</script>
</body>
</html>
|
