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<!DOCTYPE html>
<html>
<!--
Copyright 2011 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>goog.testing.style Tests</title>
<script src="../../base.js"></script>
<script>
goog.require('goog.dom');
goog.require('goog.style');
goog.require('goog.testing.jsunit');
goog.require('goog.testing.style');
</script>
</head>
<body>
<script>
var div1;
var div2;
function setUp() {
var createDiv = function(color) {
var div = goog.dom.createDom(
'div',
{
style: 'position:absolute;top:0;left:0;' +
'width:200px;height:100px;' +
'background-color:' + color,
innerHTML: 'abc'
});
document.body.appendChild(div);
return div;
};
div1 = createDiv('#EEE');
div2 = createDiv('#F00');
}
function tearDown() {
if (div1.parentNode)
div1.parentNode.removeChild(div1);
if (div2.parentNode)
div2.parentNode.removeChild(div2);
div1 = null;
div2 = null;
}
function testIsVisible() {
assertTrue('The div should be detected as visible.',
goog.testing.style.isVisible(div1));
// Tests with hidden element
goog.style.showElement(div1, false /* display */);
assertFalse('The div should be detected as not visible.',
goog.testing.style.isVisible(div1));
}
function testIsOnScreen() {
var el = document.createElement('div');
document.body.appendChild(el);
var dom = goog.dom.getDomHelper(el);
var winScroll = dom.getDocumentScroll();
var winSize = dom.getViewportSize();
el.style.position = 'absolute';
goog.style.setSize(el, 100, 100);
goog.style.setPosition(el, winScroll.x, winScroll.y);
assertTrue("An element fully on the screen is on screen.",
goog.testing.style.isOnScreen(el));
goog.style.setPosition(el, winScroll.x - 10, winScroll.y - 10);
assertTrue(
"An element partially off the top-left of the screen is on screen.",
goog.testing.style.isOnScreen(el));
goog.style.setPosition(el, winScroll.x - 150, winScroll.y - 10);
assertFalse(
"An element completely off the top of the screen is off screen.",
goog.testing.style.isOnScreen(el));
goog.style.setPosition(el, winScroll.x - 10, winScroll.y - 150);
assertFalse(
"An element completely off the left of the screen is off screen.",
goog.testing.style.isOnScreen(el));
goog.style.setPosition(el, winScroll.x + winSize.width + 1, winScroll.y);
assertFalse(
"An element completely off the right of the screen is off screen.",
goog.testing.style.isOnScreen(el));
goog.style.setPosition(el, winScroll.x, winScroll.y + winSize.height + 1);
assertFalse(
"An element completely off the bottom of the screen is off screen.",
goog.testing.style.isOnScreen(el));
goog.style.setPosition(el, winScroll.x + winSize.width - 10, winScroll.y);
assertTrue(
"An element partially off the right of the screen is on screen.",
goog.testing.style.isOnScreen(el));
goog.style.setPosition(el, winScroll.x, winScroll.y + winSize.height - 10);
assertTrue(
"An element partially off the bottom of the screen is on screen.",
goog.testing.style.isOnScreen(el));
var el2 = document.createElement('div');
el2.style.position = 'absolute';
goog.style.setSize(el2, 100, 100);
goog.style.setPosition(el2, winScroll.x, winScroll.y);
assertFalse("An element not in the DOM is not on screen.",
goog.testing.style.isOnScreen(el2));
}
function testHasVisibleDimensions() {
goog.style.setSize(div1, 0, 0);
assertFalse('0x0 should not be considered visible dimensions.',
goog.testing.style.hasVisibleDimensions(div1));
goog.style.setSize(div1, 10, 0);
assertFalse('10x0 should not be considered visible dimensions.',
goog.testing.style.hasVisibleDimensions(div1));
goog.style.setSize(div1, 10, 10);
assertTrue('10x10 should be considered visible dimensions.',
goog.testing.style.hasVisibleDimensions(div1));
goog.style.setSize(div1, 0, 10);
assertFalse('0x10 should not be considered visible dimensions.',
goog.testing.style.hasVisibleDimensions(div1));
}
function testIntersects() {
// No intersection
goog.style.setPosition(div1, 0, 0);
goog.style.setPosition(div2, 500, 500);
assertFalse('The divs should not be determined to itersect.',
goog.testing.style.intersects(div1, div2));
// Some intersection
goog.style.setPosition(div1, 0, 0);
goog.style.setPosition(div2, 50, 50);
assertTrue('The divs should be determined to itersect.',
goog.testing.style.intersects(div1, div2));
// Completely superimposed.
goog.style.setPosition(div1, 0, 0);
goog.style.setPosition(div2, 0, 0);
assertTrue('The divs should be determined to itersect.',
goog.testing.style.intersects(div1, div2));
}
</script>
</body>
</html>
|
