/**
 * Copyright Microsoft Corporation. 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.
 */

const utils = require('./utils');
const {FFOX, CHROMIUM, WEBKIT, WIN} = utils.testOptions(browserType);

describe('Page.dispatchEvent(click)', function() {
  it('should dispatch click event', async({page, server}) => {
    await page.goto(server.PREFIX + '/input/button.html');
    await page.dispatchEvent('button', 'click');
    expect(await page.evaluate(() => result)).toBe('Clicked');
  });
  it('should dispatch click event properties', async({page, server}) => {
    await page.goto(server.PREFIX + '/input/button.html');
    await page.dispatchEvent('button', 'click');
    expect(await page.evaluate(() => bubbles)).toBeTruthy();
    expect(await page.evaluate(() => cancelable)).toBeTruthy();
    expect(await page.evaluate(() => composed)).toBeTruthy();
  });
  it('should dispatch click svg', async({page, server}) => {
    await page.setContent(`
      <svg height="100" width="100">
        <circle onclick="javascript:window.__CLICKED=42" cx="50" cy="50" r="40" stroke="black" stroke-width="3" fill="red" />
      </svg>
    `);
    await page.dispatchEvent('circle', 'click');
    expect(await page.evaluate(() => window.__CLICKED)).toBe(42);
  });
  it('should dispatch click on a span with an inline element inside', async({page, server}) => {
    await page.setContent(`
      <style>
      span::before {
        content: 'q';
      }
      </style>
      <span onclick='javascript:window.CLICKED=42'></span>
    `);
    await page.dispatchEvent('span', 'click');
    expect(await page.evaluate(() => window.CLICKED)).toBe(42);
  });
  it('should dispatch click after navigation ', async({page, server}) => {
    await page.goto(server.PREFIX + '/input/button.html');
    await page.dispatchEvent('button', 'click');
    await page.goto(server.PREFIX + '/input/button.html');
    await page.dispatchEvent('button', 'click');
    expect(await page.evaluate(() => result)).toBe('Clicked');
  });
  it('should dispatch click after a cross origin navigation ', async({page, server}) => {
    await page.goto(server.PREFIX + '/input/button.html');
    await page.dispatchEvent('button', 'click');
    await page.goto(server.CROSS_PROCESS_PREFIX + '/input/button.html');
    await page.dispatchEvent('button', 'click');
    expect(await page.evaluate(() => result)).toBe('Clicked');
  });
  it('should not fail when element is blocked on hover', async({page, server}) => {
    await page.setContent(`<style>
      container { display: block; position: relative; width: 200px; height: 50px; }
      div, button { position: absolute; left: 0; top: 0; bottom: 0; right: 0; }
      div { pointer-events: none; }
      container:hover div { pointer-events: auto; background: red; }
    </style>
    <container>
      <button onclick="window.clicked=true">Click me</button>
      <div></div>
    </container>`);
    await page.dispatchEvent('button', 'click');
    expect(await page.evaluate(() => window.clicked)).toBeTruthy();
  });
  it('should dispatch click when node is added in shadow dom', async({page, server}) => {
    await page.goto(server.EMPTY_PAGE);
    const watchdog = page.dispatchEvent('span', 'click');
    await page.evaluate(() => {
      const div = document.createElement('div');
      div.attachShadow({mode: 'open'});
      document.body.appendChild(div);
    });
    await page.evaluate(() => new Promise(f => setTimeout(f, 100)));
    await page.evaluate(() => {
      const span = document.createElement('span');
      span.textContent = 'Hello from shadow';
      span.addEventListener('click', () => window.clicked = true);
      document.querySelector('div').shadowRoot.appendChild(span);
    });
    await watchdog;
    expect(await page.evaluate(() => window.clicked)).toBe(true);
  });
  it('should be atomic', async({page}) => {
    const createDummySelector = () => ({
      create(root, target) {},
      query(root, selector) {
        const result = root.querySelector(selector);
        if (result)
          Promise.resolve().then(() => result.onclick = "");
        return result;
      },
      queryAll(root, selector) {
        const result = Array.from(root.querySelectorAll(selector));
        for (const e of result)
          Promise.resolve().then(() => result.onclick = "");
        return result;
      }
    });
    await utils.registerEngine('dispatchEvent', createDummySelector);
    await page.setContent(`<div onclick="window._clicked=true">Hello</div>`);
    await page.dispatchEvent('dispatchEvent=div', 'click');
    expect(await page.evaluate(() => window._clicked)).toBe(true);
  });
});

describe('Page.dispatchEvent(drag)', function() {
  it.fail(WEBKIT)('should dispatch drag drop events', async({page, server}) => {
    await page.goto(server.PREFIX + '/drag-n-drop.html');
    const dataTransfer = await page.evaluateHandle(() => new DataTransfer());
    await page.dispatchEvent('#source', 'dragstart', { dataTransfer });
    await page.dispatchEvent('#target', 'drop', { dataTransfer });
    expect(await page.evaluate(() => {
      return source.parentElement === target;
    })).toBeTruthy();
  });
});

describe('ElementHandle.dispatchEvent(click)', function() {
  it('should dispatch click event', async({page, server}) => {
    await page.goto(server.PREFIX + '/input/button.html');
    const button = await page.$('button');
    await button.dispatchEvent('click');
    expect(await page.evaluate(() => result)).toBe('Clicked');
  });
});
