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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.
/**
* Tests for {@code goog.positioning.ClientPosition}
*/
goog.provide('goog.positioning.clientPositionTest');
goog.setTestOnly('goog.positioning.clientPositionTest');
goog.require('goog.dom');
goog.require('goog.positioning.ClientPosition');
goog.require('goog.style');
goog.require('goog.testing.jsunit');
/**
* Prefabricated popup element for convenient. This is created during
* setUp and is not attached to the document at the beginning of the
* test.
* @type {Element}
*/
var popupElement;
var testArea;
var POPUP_HEIGHT = 100;
var POPUP_WIDTH = 150;
function setUp() {
testArea = goog.dom.getElement('test-area');
// Enlarges the test area to 5000x5000px so that we can be confident
// that scrolling the document to some small (x,y) value would work.
goog.style.setSize(testArea, 5000, 5000);
window.scrollTo(0, 0);
popupElement = goog.dom.createDom('div');
goog.style.setSize(popupElement, POPUP_WIDTH, POPUP_HEIGHT);
popupElement.style.position = 'absolute';
// For ease of debugging.
popupElement.style.background = 'blue';
}
function tearDown() {
popupElement = null;
testArea.innerHTML = '';
testArea.setAttribute('style', '');
}
function testClientPositionWithZeroViewportOffset() {
goog.dom.appendChild(testArea, popupElement);
var x = 300;
var y = 200;
var pos = new goog.positioning.ClientPosition(x, y);
pos.reposition(popupElement, goog.positioning.Corner.TOP_LEFT);
assertPageOffset(x, y, popupElement);
pos.reposition(popupElement, goog.positioning.Corner.TOP_RIGHT);
assertPageOffset(x - POPUP_WIDTH, y, popupElement);
pos.reposition(popupElement, goog.positioning.Corner.BOTTOM_LEFT);
assertPageOffset(x, y - POPUP_HEIGHT, popupElement);
pos.reposition(popupElement, goog.positioning.Corner.BOTTOM_RIGHT);
assertPageOffset(x - POPUP_WIDTH, y - POPUP_HEIGHT, popupElement);
}
function testClientPositionWithSomeViewportOffset() {
goog.dom.appendChild(testArea, popupElement);
var x = 300;
var y = 200;
var scrollX = 135;
var scrollY = 270;
window.scrollTo(scrollX, scrollY);
var pos = new goog.positioning.ClientPosition(x, y);
pos.reposition(popupElement, goog.positioning.Corner.TOP_LEFT);
assertPageOffset(scrollX + x, scrollY + y, popupElement);
}
function testClientPositionWithPositionContext() {
var contextAbsoluteX = 90;
var contextAbsoluteY = 110;
var x = 300;
var y = 200;
var contextElement = goog.dom.createDom('div', undefined, popupElement);
goog.style.setPosition(contextElement, contextAbsoluteX, contextAbsoluteY);
contextElement.style.position = 'absolute';
goog.dom.appendChild(testArea, contextElement);
var pos = new goog.positioning.ClientPosition(x, y);
pos.reposition(popupElement, goog.positioning.Corner.TOP_LEFT);
assertPageOffset(x, y, popupElement);
}
function assertPageOffset(expectedX, expectedY, el) {
var offsetCoordinate = goog.style.getPageOffset(el);
assertEquals('x-coord page offset is wrong.', expectedX, offsetCoordinate.x);
assertEquals('y-coord page offset is wrong.', expectedY, offsetCoordinate.y);
}
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