<!DOCTYPE html>
<!--
@license
Copyright (C) 2018 The Android Open Source Project

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.
-->

<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
<title>gr-hovercard</title>

<script src="/bower_components/webcomponentsjs/custom-elements-es5-adapter.js"></script>

<script src="/bower_components/webcomponentsjs/webcomponents-lite.js"></script>
<script src="/bower_components/web-component-tester/browser.js"></script>
<link rel="import" href="../../../test/common-test-setup.html"/>
<script src="/bower_components/iron-test-helpers/mock-interactions.js"></script>

<link rel="import" href="gr-hovercard.html">

<script>void(0);</script>

<button id="foo">Hello</button>
<test-fixture id="basic">
  <template>
    <gr-hovercard for="foo" id="bar"></gr-hovercard>
  </template>
</test-fixture>

<script>
  suite('gr-hovercard tests', () => {
    let element;
    let sandbox;
    // For css animations
    const TRANSITION_TIME = 500;

    setup(() => {
      sandbox = sinon.sandbox.create();
      element = fixture('basic');
    });

    teardown(() => { sandbox.restore(); });

    test('updatePosition', () => {
      // Test that the correct style properties have at least been set.
      element.position = 'bottom';
      element.updatePosition();
      assert.typeOf(element.style.getPropertyValue('left'), 'string');
      assert.typeOf(element.style.getPropertyValue('top'), 'string');
      assert.typeOf(element.style.getPropertyValue('paddingTop'), 'string');
      assert.typeOf(element.style.getPropertyValue('marginTop'), 'string');

      const parentRect = document.documentElement.getBoundingClientRect();
      const targetRect = element._target.getBoundingClientRect();
      const thisRect = element.getBoundingClientRect();

      const targetLeft = targetRect.left - parentRect.left;
      const targetTop = targetRect.top - parentRect.top;

      const pixelCompare = pixel =>
        Math.round(parseInt(pixel.substring(0, pixel.length - 1)), 10);

      assert.equal(
          pixelCompare(element.style.left),
          pixelCompare(
              (targetLeft + (targetRect.width - thisRect.width) / 2) + 'px'));
      assert.equal(
          pixelCompare(element.style.top),
          pixelCompare(
              (targetTop + targetRect.height + element.offset) + 'px'));
    });

    test('hide', done => {
      element.hide({});
      setTimeout(() => {
        const style = getComputedStyle(element);
        assert.isFalse(element._isShowing);
        assert.isFalse(element.classList.contains('hovered'));
        assert.equal(style.opacity, '0');
        assert.equal(style.visibility, 'hidden');
        assert.notEqual(element.container, Polymer.dom(element).parentNode);
        done();
      }, TRANSITION_TIME);
    });

    test('show', done => {
      element.show({});
      setTimeout(() => {
        const style = getComputedStyle(element);
        assert.isTrue(element._isShowing);
        assert.isTrue(element.classList.contains('hovered'));
        assert.equal(style.opacity, '1');
        assert.equal(style.visibility, 'visible');
        done();
      }, TRANSITION_TIME);
    });

    test('card shows on enter and hides on leave', done => {
      const button = Polymer.dom(document).querySelector('button');
      assert.isFalse(element._isShowing);
      button.addEventListener('mouseenter', event => {
        assert.isTrue(element._isShowing);
        button.dispatchEvent(new CustomEvent('mouseleave'));
      });
      button.addEventListener('mouseleave', event => {
        assert.isFalse(element._isShowing);
        done();
      });
      button.dispatchEvent(new CustomEvent('mouseenter'));
    });
  });
</script>