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// Copyright 2011 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.testing.styleTest');
goog.setTestOnly('goog.testing.styleTest');
goog.require('goog.dom');
goog.require('goog.dom.TagName');
goog.require('goog.style');
goog.require('goog.testing.jsunit');
goog.require('goog.testing.style');
var div1;
var div2;
function setUp() {
var createDiv = function(color) {
var div = goog.dom.createDom(goog.dom.TagName.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.setElementShown(div1, false /* display */);
assertFalse(
'The div should be detected as not visible.',
goog.testing.style.isVisible(div1));
}
function testIsOnScreen() {
var el = goog.dom.createElement(goog.dom.TagName.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 = goog.dom.createElement(goog.dom.TagName.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));
}
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