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+<!doctype html>
+<!--
+@license
+Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
+This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
+The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
+The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
+Code distributed by Google as part of the polymer project is also
+subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
+-->
+<html>
+
+<head>
+ <meta charset="UTF-8">
+ <title>iron-dropdown basic tests</title>
+ <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">
+
+ <script src="../../webcomponentsjs/webcomponents-lite.js"></script>
+ <script src="../../web-component-tester/browser.js"></script>
+ <script src="../../test-fixture/test-fixture-mocha.js"></script>
+ <script src="../../iron-test-helpers/mock-interactions.js"></script>
+
+ <link rel="import" href="../iron-dropdown.html">
+ <link rel="import" href="../../test-fixture/test-fixture.html">
+
+</head>
+<style>
+ body {
+ margin: 0;
+ padding: 0;
+ }
+
+ .container {
+ display: block;
+ position: relative;
+ width: 100px;
+ height: 100px;
+ background-color: yellow;
+ }
+
+ .positioned {
+ position: absolute;
+ top: 40px;
+ left: 40px;
+ }
+
+ .dropdown-content {
+ width: 50px;
+ height: 50px;
+ background-color: orange;
+ }
+
+ .big {
+ width: 3000px;
+ height: 3000px;
+ }
+</style>
+
+<body>
+
+ <test-fixture id="TrivialDropdown">
+ <template>
+ <iron-dropdown>
+ <div class="dropdown-content"></div>
+ </iron-dropdown>
+ </template>
+ </test-fixture>
+
+ <test-fixture id="NonLockingDropdown">
+ <template>
+ <iron-dropdown allow-outside-scroll>
+ <div class="dropdown-content">I don't lock scroll!</div>
+ </iron-dropdown>
+ </template>
+ </test-fixture>
+
+ <test-fixture id="AlignedDropdown">
+ <template>
+ <div class="container">
+ <iron-dropdown horizontal-align="right" vertical-align="top">
+ <div class="dropdown-content big"></div>
+ </iron-dropdown>
+ </div>
+ </template>
+ </test-fixture>
+
+ <!-- Absolutely position the dropdown so that it has enough space to move around -->
+ <test-fixture id="OffsetDropdownTopLeft">
+ <template>
+ <div class="container positioned">
+ <iron-dropdown>
+ <div class="dropdown-content"></div>
+ </iron-dropdown>
+ </div>
+ </template>
+ </test-fixture>
+
+ <test-fixture id="OffsetDropdownBottomRight">
+ <template>
+ <div class="container positioned">
+ <iron-dropdown horizontal-align="right" vertical-align="bottom">
+ <div class="dropdown-content"></div>
+ </iron-dropdown>
+ </div>
+ </template>
+ </test-fixture>
+
+ <test-fixture id="FocusableContentDropdown">
+ <template>
+ <iron-dropdown>
+ <div class="dropdown-content" tabindex="0">
+ <div class="subcontent" tabindex="0"></div>
+ </div>
+ </iron-dropdown>
+ </template>
+ </test-fixture>
+
+ <test-fixture id="RTLDropdownLeft">
+ <template>
+ <div dir="rtl" class="container">
+ <iron-dropdown>
+ <div class="dropdown-content"></div>
+ </iron-dropdown>
+ </div>
+ </template>
+ </test-fixture>
+
+ <test-fixture id="RTLDropdownRight">
+ <template>
+ <div dir="rtl" class="container">
+ <iron-dropdown horizontal-align="right">
+ <div class="dropdown-content"></div>
+ </iron-dropdown>
+ </div>
+ </template>
+ </test-fixture>
+
+ <test-fixture id="sizingTarget">
+ <template>
+ <iron-dropdown>
+ <div class="dropdown-content">
+ <div class="subcontent"></div>
+ </div>
+ </iron-dropdown>
+ </template>
+ </test-fixture>
+
+ <test-fixture id="EmptyDropdown">
+ <template>
+ <iron-dropdown></iron-dropdown>
+ </template>
+ </test-fixture>
+
+ <script>
+ function elementIsVisible(element) {
+ var contentRect = element.getBoundingClientRect();
+ var computedStyle = window.getComputedStyle(element);
+
+ return computedStyle.display !== 'none' &&
+ contentRect.width > 0 &&
+ contentRect.height > 0;
+ }
+
+ function runAfterOpen(overlay, callback) {
+ overlay.addEventListener('iron-overlay-opened', callback);
+ overlay.open();
+ }
+
+ function fireWheel(node, deltaX, deltaY) {
+ // IE 11 doesn't support WheelEvent, use CustomEvent.
+ var event = new CustomEvent('wheel', {
+ cancelable: true,
+ bubbles: true
+ });
+ event.deltaX = deltaX;
+ event.deltaY = deltaY;
+ node.dispatchEvent(event);
+ return event;
+ }
+
+ function dispatchScroll(target, scrollLeft, scrollTop) {
+ target.scrollLeft = scrollLeft;
+ target.scrollTop = scrollTop;
+ target.dispatchEvent(new CustomEvent('scroll', { bubbles:true } ));
+ }
+
+ suite('<iron-dropdown>', function() {
+ var dropdown;
+ var content;
+
+ suite('basic', function() {
+ setup(function() {
+ dropdown = fixture('TrivialDropdown');
+ content = Polymer.dom(dropdown).querySelector('.dropdown-content');
+ });
+
+ test('effectively hides the dropdown content', function() {
+ expect(elementIsVisible(content)).to.be.equal(false);
+ });
+
+ test('shows dropdown content when opened', function(done) {
+ runAfterOpen(dropdown, function() {
+ expect(elementIsVisible(content)).to.be.equal(true);
+ done();
+ });
+ });
+
+ test('hides dropdown content when outside is clicked', function(done) {
+ runAfterOpen(dropdown, function() {
+ expect(elementIsVisible(content)).to.be.equal(true);
+ dropdown.addEventListener('iron-overlay-closed', function() {
+ expect(elementIsVisible(content)).to.be.equal(false);
+ done();
+ });
+ MockInteractions.tap(dropdown.parentNode);
+ });
+ });
+
+ suite('when content is focusable', function() {
+ setup(function() {
+ dropdown = fixture('FocusableContentDropdown');
+ content = Polymer.dom(dropdown).querySelector('.dropdown-content');
+ });
+ test('focuses the content when opened', function(done) {
+ runAfterOpen(dropdown, function() {
+ expect(document.activeElement).to.be.equal(content);
+ done();
+ });
+ });
+
+ test('focuses a configured focus target', function(done) {
+ var focusableChild = Polymer.dom(content).querySelector('div[tabindex]');
+ dropdown.focusTarget = focusableChild;
+
+ runAfterOpen(dropdown, function() {
+ expect(document.activeElement).to.not.be.equal(content);
+ expect(document.activeElement).to.be.equal(focusableChild);
+ done();
+ });
+ });
+ });
+
+ suite('when dropdown is empty', function() {
+ test('keeps the sizingTarget default value', function() {
+ dropdown = fixture('EmptyDropdown');
+ expect(dropdown.sizingTarget).to.be.equal(dropdown);
+ });
+ });
+
+ suite('correct animationConfig setup', function() {
+ test('as objects', function() {
+ dropdown.openAnimationConfig = {
+ name: 'open-animation'
+ };
+ dropdown.closeAnimationConfig = {
+ name: 'close-animation'
+ };
+
+ dropdown.opened = true;
+
+ assert.deepEqual(dropdown.openAnimationConfig, {
+ name: 'open-animation',
+ node: content
+ }, 'open animation ok');
+
+ assert.deepEqual(dropdown.closeAnimationConfig, {
+ name: 'close-animation',
+ node: content
+ }, 'close animation ok');
+
+ assert.deepEqual(dropdown.animationConfig, {
+ open: dropdown.openAnimationConfig,
+ close: dropdown.closeAnimationConfig
+ }, 'animationConfig ok');
+ });
+
+ test('as arrays', function() {
+ dropdown.openAnimationConfig = [{
+ name: 'open-animation-1'
+ }, {
+ name: 'open-animation-2'
+ }];
+ dropdown.closeAnimationConfig = [{
+ name: 'close-animation-1'
+ }, {
+ name: 'close-animation-2'
+ }];
+
+ dropdown.opened = true;
+
+ assert.deepEqual(dropdown.openAnimationConfig, [{
+ name: 'open-animation-1',
+ node: content
+ }, {
+ name: 'open-animation-2',
+ node: content
+ }], 'open animation ok');
+
+ assert.deepEqual(dropdown.closeAnimationConfig, [{
+ name: 'close-animation-1',
+ node: content
+ }, {
+ name: 'close-animation-2',
+ node: content
+ }], 'close animation ok');
+
+ assert.deepEqual(dropdown.animationConfig, {
+ open: dropdown.openAnimationConfig,
+ close: dropdown.closeAnimationConfig
+ }, 'animationConfig ok');
+ });
+ });
+
+ });
+
+ suite('locking scroll', function() {
+
+ var bigDiv, scrollTarget;
+ suiteSetup(function() {
+ bigDiv = document.createElement('div');
+ bigDiv.classList.add('big');
+ document.body.appendChild(bigDiv);
+ // Need to discover if html or body is scrollable.
+ // Here we are sure the page is scrollable.
+ document.documentElement.scrollTop = 1;
+ if (document.documentElement.scrollTop === 1) {
+ document.documentElement.scrollTop = 0;
+ scrollTarget = document.documentElement;
+ } else {
+ scrollTarget = document.body;
+ }
+ });
+
+ suiteTeardown(function() {
+ document.body.removeChild(bigDiv);
+ });
+
+ setup(function() {
+ dropdown = fixture('TrivialDropdown');
+ });
+
+ teardown(function() {
+ dispatchScroll(scrollTarget, 0, 0);
+ });
+
+ test('should lock, only once', function(done) {
+ var openCount = 0;
+ runAfterOpen(dropdown, function() {
+ expect(Polymer.IronDropdownScrollManager._lockingElements.length)
+ .to.be.equal(1);
+ expect(Polymer.IronDropdownScrollManager.elementIsScrollLocked(document.body))
+ .to.be.equal(true);
+ expect(fireWheel(document.body, 0, 10).defaultPrevented).to.be.equal(true);
+
+ if (openCount === 0) {
+ // This triggers a second `pushScrollLock` with the same element, however
+ // that should not add the element to the `_lockingElements` stack twice
+ dropdown.close();
+ dropdown.open();
+ } else {
+ done();
+ }
+ openCount++;
+ });
+ });
+
+ test('should lock scroll', function(done) {
+ runAfterOpen(dropdown, function() {
+ dispatchScroll(scrollTarget, 10, 10);
+ assert.equal(scrollTarget.scrollTop, 0, 'scrollTop ok');
+ assert.equal(scrollTarget.scrollLeft, 0, 'scrollLeft ok');
+ done();
+ });
+ });
+
+ test('can be disabled with `allowOutsideScroll`', function(done) {
+ dropdown.allowOutsideScroll = true;
+ runAfterOpen(dropdown, function() {
+ dispatchScroll(scrollTarget, 10, 10);
+ assert.equal(scrollTarget.scrollTop, 10, 'scrollTop ok');
+ assert.equal(scrollTarget.scrollLeft, 10, 'scrollLeft ok');
+ done();
+ });
+ });
+
+ });
+
+ suite('non locking scroll', function() {
+
+ setup(function() {
+ dropdown = fixture('NonLockingDropdown');
+ });
+
+ test('can be disabled with `allowOutsideScroll`', function(done) {
+ runAfterOpen(dropdown, function() {
+ expect(Polymer.IronDropdownScrollManager.elementIsScrollLocked(document.body))
+ .to.be.equal(false);
+ expect(fireWheel(document.body, 0, 10).defaultPrevented).to.be.equal(false);
+ done();
+ });
+ });
+ });
+
+ suite('aligned dropdown', function() {
+ var parent;
+ var parentRect;
+ var dropdownRect;
+
+ setup(function() {
+ parent = fixture('AlignedDropdown');
+ dropdown = parent.querySelector('iron-dropdown');
+ parentRect = parent.getBoundingClientRect();
+ });
+
+ test('can be re-aligned to the right and the top', function(done) {
+ runAfterOpen(dropdown, function() {
+ dropdownRect = dropdown.getBoundingClientRect();
+ assert.equal(dropdownRect.top, parentRect.top, 'top ok');
+ assert.equal(dropdownRect.left, 0, 'left ok');
+ assert.equal(dropdownRect.bottom, window.innerHeight, 'bottom ok');
+ assert.equal(dropdownRect.right, parentRect.right, 'right ok');
+ done();
+ });
+ });
+
+ test('can be re-aligned to the bottom', function(done) {
+ dropdown.verticalAlign = 'bottom';
+ runAfterOpen(dropdown, function() {
+ dropdownRect = dropdown.getBoundingClientRect();
+ assert.equal(dropdownRect.top, 0, 'top ok');
+ assert.equal(dropdownRect.left, 0, 'left ok');
+ assert.equal(dropdownRect.bottom, parentRect.bottom, 'bottom ok');
+ assert.equal(dropdownRect.right, parentRect.right, 'right ok');
+ done();
+ });
+ });
+
+ test('handles parent\'s stacking context', function(done) {
+ // This will create a new stacking context.
+ parent.style.transform = 'translateZ(0)';
+ runAfterOpen(dropdown, function() {
+ dropdownRect = dropdown.getBoundingClientRect();
+ assert.equal(dropdownRect.top, parentRect.top, 'top ok');
+ assert.equal(dropdownRect.left, 0, 'left ok');
+ assert.equal(dropdownRect.bottom, window.innerHeight, 'bottom ok');
+ assert.equal(dropdownRect.right, parentRect.right, 'right ok');
+ done();
+ });
+ });
+ });
+
+ suite('when align is left/top, with an offset', function() {
+ var dropdownRect;
+ var offsetDropdownRect;
+ setup(function() {
+ var parent = fixture('OffsetDropdownTopLeft');
+ dropdown = parent.querySelector('iron-dropdown');
+ });
+
+ test('can be offset towards the bottom right', function(done) {
+ runAfterOpen(dropdown, function() {
+ dropdownRect = dropdown.getBoundingClientRect();
+ dropdown.verticalOffset = 10;
+ dropdown.horizontalOffset = 10;
+ // Force refit instead of waiting for requestAnimationFrame.
+ dropdown.refit();
+ offsetDropdownRect = dropdown.getBoundingClientRect();
+ // verticalAlign is top, so a positive offset moves down.
+ assert.equal(dropdownRect.top + 10, offsetDropdownRect.top, 'top ok');
+ // horizontalAlign is left, so a positive offset moves to the right.
+ assert.equal(dropdownRect.left + 10, offsetDropdownRect.left, 'left ok');
+ done();
+ });
+ });
+
+ test('can be offset towards the top left', function(done) {
+ runAfterOpen(dropdown, function() {
+ dropdownRect = dropdown.getBoundingClientRect();
+ dropdown.verticalOffset = -10;
+ dropdown.horizontalOffset = -10;
+ // Force refit instead of waiting for requestAnimationFrame.
+ dropdown.refit();
+ offsetDropdownRect = dropdown.getBoundingClientRect();
+ // verticalAlign is top, so a negative offset moves up.
+ assert.equal(dropdownRect.top - 10, offsetDropdownRect.top, 'top ok');
+ // horizontalAlign is left, so a negative offset moves to the left.
+ assert.equal(dropdownRect.left - 10, offsetDropdownRect.left, 'left ok');
+ done();
+ });
+ });
+ });
+
+ suite('when align is right/bottom, with an offset', function() {
+ var dropdownRect;
+ var offsetDropdownRect;
+ setup(function() {
+ var parent = fixture('OffsetDropdownBottomRight');
+ dropdown = parent.querySelector('iron-dropdown');
+ });
+
+ test('can be offset towards the top left', function(done) {
+ runAfterOpen(dropdown, function() {
+ dropdownRect = dropdown.getBoundingClientRect();
+ dropdown.verticalOffset = 10;
+ dropdown.horizontalOffset = 10;
+ // Force refit instead of waiting for requestAnimationFrame.
+ dropdown.refit();
+ offsetDropdownRect = dropdown.getBoundingClientRect();
+ // verticalAlign is bottom, so a positive offset moves up.
+ assert.equal(dropdownRect.bottom - 10, offsetDropdownRect.bottom, 'bottom ok');
+ // horizontalAlign is right, so a positive offset moves to the left.
+ assert.equal(dropdownRect.right - 10, offsetDropdownRect.right, 'right ok');
+ done();
+ });
+ });
+
+ test('can be offset towards the bottom right', function(done) {
+ runAfterOpen(dropdown, function() {
+ dropdownRect = dropdown.getBoundingClientRect();
+ dropdown.verticalOffset = -10;
+ dropdown.horizontalOffset = -10;
+ // Force refit instead of waiting for requestAnimationFrame.
+ dropdown.refit();
+ offsetDropdownRect = dropdown.getBoundingClientRect();
+ // verticalAlign is bottom, so a negative offset moves down.
+ assert.equal(dropdownRect.bottom + 10, offsetDropdownRect.bottom, 'bottom ok');
+ // horizontalAlign is right, so a positive offset moves to the right.
+ assert.equal(dropdownRect.right + 10, offsetDropdownRect.right, 'right ok');
+ done();
+ });
+ });
+ });
+
+ suite('RTL', function() {
+ var dropdownRect;
+
+ test('with horizontalAlign=left', function(done) {
+ var parent = fixture('RTLDropdownLeft');
+ dropdown = parent.querySelector('iron-dropdown');
+ runAfterOpen(dropdown, function() {
+ // In RTL, if `horizontalAlign` is "left", that's the same as
+ // being right-aligned in LTR. So the dropdown should be in the top
+ // right corner.
+ dropdownRect = dropdown.getBoundingClientRect();
+ expect(dropdownRect.top).to.be.equal(0);
+ expect(dropdownRect.right).to.be.equal(100);
+ done();
+ });
+ });
+
+ test('with horizontalAlign=right', function(done) {
+ var parent = fixture('RTLDropdownRight');
+ dropdown = parent.querySelector('iron-dropdown');
+ runAfterOpen(dropdown, function() {
+ // In RTL, if `horizontalAlign` is "right", that's the same as
+ // being left-aligned in LTR. So the dropdown should be in the top
+ // left corner.
+ dropdownRect = dropdown.getBoundingClientRect();
+ expect(dropdownRect.top).to.be.equal(0);
+ expect(dropdownRect.left).to.be.equal(0);
+ done();
+ });
+ });
+ });
+
+ suite('sizing target', function() {
+ setup(function() {
+ dropdown = fixture('sizingTarget');
+ content = Polymer.dom(dropdown).querySelector('.dropdown-content');
+ });
+
+ test('sizingTarget is the content element by default', function(done) {
+ runAfterOpen(dropdown, function() {
+ expect(dropdown.sizingTarget).to.be.equal(content);
+ expect(content.style.maxHeight).to.be.not.empty;
+ expect(content.style.maxWidth).to.be.not.empty;
+ done();
+ });
+ });
+
+ test('sizingTarget can be set to a child element', function(done) {
+ var subcontent = Polymer.dom(dropdown).querySelector('.subcontent');
+ dropdown.sizingTarget = subcontent;
+
+ runAfterOpen(dropdown, function() {
+ expect(dropdown.sizingTarget).to.be.equal(subcontent);
+ expect(subcontent.style.maxHeight).to.be.not.empty;
+ expect(subcontent.style.maxWidth).to.be.not.empty;
+ done();
+ });
+ });
+ });
+ });
+ </script>
+</body>
+
+</html>