123 lines
3.6 KiB
JavaScript
123 lines
3.6 KiB
JavaScript
// Copyright 2012 The Closure Library Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS-IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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/**
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* Tests for {@code goog.positioning.ClientPosition}
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*/
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goog.provide('goog.positioning.clientPositionTest');
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goog.setTestOnly('goog.positioning.clientPositionTest');
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goog.require('goog.dom');
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goog.require('goog.positioning.ClientPosition');
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goog.require('goog.style');
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goog.require('goog.testing.jsunit');
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/**
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* Prefabricated popup element for convenient. This is created during
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* setUp and is not attached to the document at the beginning of the
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* test.
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* @type {Element}
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*/
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var popupElement;
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var testArea;
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var POPUP_HEIGHT = 100;
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var POPUP_WIDTH = 150;
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function setUp() {
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testArea = goog.dom.getElement('test-area');
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// Enlarges the test area to 5000x5000px so that we can be confident
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// that scrolling the document to some small (x,y) value would work.
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goog.style.setSize(testArea, 5000, 5000);
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window.scrollTo(0, 0);
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popupElement = goog.dom.createDom('div');
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goog.style.setSize(popupElement, POPUP_WIDTH, POPUP_HEIGHT);
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popupElement.style.position = 'absolute';
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// For ease of debugging.
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popupElement.style.background = 'blue';
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}
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function tearDown() {
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popupElement = null;
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testArea.innerHTML = '';
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testArea.setAttribute('style', '');
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}
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function testClientPositionWithZeroViewportOffset() {
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goog.dom.appendChild(testArea, popupElement);
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var x = 300;
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var y = 200;
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var pos = new goog.positioning.ClientPosition(x, y);
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pos.reposition(popupElement, goog.positioning.Corner.TOP_LEFT);
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assertPageOffset(x, y, popupElement);
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pos.reposition(popupElement, goog.positioning.Corner.TOP_RIGHT);
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assertPageOffset(x - POPUP_WIDTH, y, popupElement);
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pos.reposition(popupElement, goog.positioning.Corner.BOTTOM_LEFT);
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assertPageOffset(x, y - POPUP_HEIGHT, popupElement);
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pos.reposition(popupElement, goog.positioning.Corner.BOTTOM_RIGHT);
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assertPageOffset(x - POPUP_WIDTH, y - POPUP_HEIGHT, popupElement);
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}
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function testClientPositionWithSomeViewportOffset() {
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goog.dom.appendChild(testArea, popupElement);
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var x = 300;
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var y = 200;
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var scrollX = 135;
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var scrollY = 270;
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window.scrollTo(scrollX, scrollY);
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var pos = new goog.positioning.ClientPosition(x, y);
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pos.reposition(popupElement, goog.positioning.Corner.TOP_LEFT);
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assertPageOffset(scrollX + x, scrollY + y, popupElement);
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}
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function testClientPositionWithPositionContext() {
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var contextAbsoluteX = 90;
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var contextAbsoluteY = 110;
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var x = 300;
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var y = 200;
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var contextElement = goog.dom.createDom('div', undefined, popupElement);
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goog.style.setPosition(contextElement, contextAbsoluteX, contextAbsoluteY);
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contextElement.style.position = 'absolute';
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goog.dom.appendChild(testArea, contextElement);
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var pos = new goog.positioning.ClientPosition(x, y);
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pos.reposition(popupElement, goog.positioning.Corner.TOP_LEFT);
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assertPageOffset(x, y, popupElement);
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}
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function assertPageOffset(expectedX, expectedY, el) {
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var offsetCoordinate = goog.style.getPageOffset(el);
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assertEquals('x-coord page offset is wrong.', expectedX, offsetCoordinate.x);
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assertEquals('y-coord page offset is wrong.', expectedY, offsetCoordinate.y);
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}
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