gecko-dev/dom/browser-element/mochitest/browserElement_SendEvent.js

/* Any copyright is dedicated to the public domain.
   http://creativecommons.org/publicdomain/zero/1.0/ */

// Test that sendMouseEvent dispatch events.
"use strict";

SimpleTest.waitForExplicitFinish();
browserElementTestHelpers.setEnabledPref(true);

function runTest() {
  var iframe = document.createElement("iframe");
  iframe.setAttribute('mozbrowser', 'true');
  document.body.appendChild(iframe);
  var x = 10;
  var y = 10;
  // First we force a reflow so that getChildProcessOffset actually returns
  // meaningful data.
  iframe.getBoundingClientRect();
  // We need to make sure the event coordinates are actually inside the iframe,
  // relative to the chome window.
  var tabParent = SpecialPowers.wrap(iframe)
                  .QueryInterface(SpecialPowers.Ci.nsIFrameLoaderOwner)
                  .frameLoader.tabParent;
  if (tabParent) {
    let offsetX = {};
    let offsetY = {};
    tabParent.getChildProcessOffset(offsetX, offsetY);
    x -= offsetX.value;
    y -= offsetY.value;
  }

  iframe.addEventListener("mozbrowserloadend", function onloadend(e) {
    iframe.sendMouseEvent("mousedown", x, y, 0, 1, 0);
  });

  iframe.addEventListener("mozbrowserlocationchange", function onlocchange(e) {
    var a = document.createElement("a");
    a.href = e.detail.url;

    switch (a.hash) {
      case "#mousedown":
        ok(true, "Receive a mousedown event.");
        iframe.sendMouseEvent("mousemove", x, y, 0, 0, 0);
        break;
      case "#mousemove":
        ok(true, "Receive a mousemove event.");
        iframe.sendMouseEvent("mouseup", x, y, 0, 1, 0);
        break;
      case "#mouseup":
        ok(true, "Receive a mouseup event.");
        break;
      case "#click":
        ok(true, "Receive a click event.");
        iframe.removeEventListener('mozbrowserlocationchange', onlocchange);
        SimpleTest.finish();
        break;
    }
  });

  iframe.src = "file_browserElement_SendEvent.html";

}

addEventListener('testready', runTest);