fune/browser/base/content/test/plugins/browser_CTP_drag_drop.js

var gTestRoot = getRootDirectory(gTestPath).replace(
  "chrome://mochitests/content/",
  "http://127.0.0.1:8888/"
);
var gNewWindow = null;

add_task(async function() {
  registerCleanupFunction(async function() {
    clearAllPluginPermissions();
    setTestPluginEnabledState(Ci.nsIPluginTag.STATE_ENABLED, "Test Plug-in");
    setTestPluginEnabledState(
      Ci.nsIPluginTag.STATE_ENABLED,
      "Second Test Plug-in"
    );
    Services.prefs.clearUserPref("extensions.blocklist.suppressUI");
    gNewWindow.close();
    await BrowserTestUtils.waitForEvent(gNewWindow, "unload", true);
    gNewWindow = null;
    window.focus();
  });
});

add_task(async function() {
  Services.prefs.setBoolPref("extensions.blocklist.suppressUI", true);

  gBrowser.selectedTab = BrowserTestUtils.addTab(gBrowser);

  setTestPluginEnabledState(Ci.nsIPluginTag.STATE_CLICKTOPLAY, "Test Plug-in");

  await promiseTabLoadEvent(
    gBrowser.selectedTab,
    gTestRoot + "plugin_test.html"
  );

  // Work around for delayed PluginBindingAttached
  await promiseUpdatePluginBindings(gBrowser.selectedBrowser);

  await promisePopupNotification("click-to-play-plugins");
});

add_task(async function() {
  gNewWindow = gBrowser.replaceTabWithWindow(gBrowser.selectedTab);

  // XXX technically can't load fire before we get this call???
  await BrowserTestUtils.waitForEvent(gNewWindow, "load", true);

  await promisePopupNotification(
    "click-to-play-plugins",
    gNewWindow.gBrowser.selectedBrowser
  );

  ok(
    PopupNotifications.getNotification(
      "click-to-play-plugins",
      gNewWindow.gBrowser.selectedBrowser
    ),
    "Should have a click-to-play notification in the tab in the new window"
  );
  ok(
    !PopupNotifications.getNotification(
      "click-to-play-plugins",
      gBrowser.selectedBrowser
    ),
    "Should not have a click-to-play notification in the old window now"
  );
});

add_task(async function() {
  gBrowser.selectedTab = BrowserTestUtils.addTab(gBrowser);
  gBrowser.swapBrowsersAndCloseOther(
    gBrowser.selectedTab,
    gNewWindow.gBrowser.selectedTab
  );

  await promisePopupNotification(
    "click-to-play-plugins",
    gBrowser.selectedBrowser
  );

  ok(
    PopupNotifications.getNotification(
      "click-to-play-plugins",
      gBrowser.selectedBrowser
    ),
    "Should have a click-to-play notification in the initial tab again"
  );

  // Work around for delayed PluginBindingAttached
  await promiseUpdatePluginBindings(gBrowser.selectedBrowser);
});

add_task(async function() {
  await promisePopupNotification("click-to-play-plugins");

  gNewWindow = gBrowser.replaceTabWithWindow(gBrowser.selectedTab);

  await promiseWaitForFocus(gNewWindow);

  await promisePopupNotification(
    "click-to-play-plugins",
    gNewWindow.gBrowser.selectedBrowser
  );
});

add_task(async function() {
  ok(
    PopupNotifications.getNotification(
      "click-to-play-plugins",
      gNewWindow.gBrowser.selectedBrowser
    ),
    "Should have a click-to-play notification in the tab in the new window"
  );
  ok(
    !PopupNotifications.getNotification(
      "click-to-play-plugins",
      gBrowser.selectedBrowser
    ),
    "Should not have a click-to-play notification in the old window now"
  );

  let pluginInfo = await promiseForPluginInfo(
    "test",
    gNewWindow.gBrowser.selectedBrowser
  );
  ok(!pluginInfo.activated, "plugin should not be activated");

  await SpecialPowers.spawn(
    gNewWindow.gBrowser.selectedBrowser,
    [],
    async function() {
      let doc = content.document;
      let plugin = doc.getElementById("test");
      let bounds = plugin.getBoundingClientRect();
      let left = (bounds.left + bounds.right) / 2;
      let top = (bounds.top + bounds.bottom) / 2;
      let utils = content.windowUtils;
      utils.sendMouseEvent("mousedown", left, top, 0, 1, 0, false, 0, 0);
      utils.sendMouseEvent("mouseup", left, top, 0, 1, 0, false, 0, 0);
    }
  );

  let condition = () =>
    !PopupNotifications.getNotification(
      "click-to-play-plugins",
      gNewWindow.gBrowser.selectedBrowser
    ).dismissed && gNewWindow.PopupNotifications.panel.firstElementChild;
  await promiseForCondition(condition);
});

add_task(async function() {
  // Click the activate button on doorhanger to make sure it works
  gNewWindow.PopupNotifications.panel.firstElementChild.button.click();

  let pluginInfo = await promiseForPluginInfo(
    "test",
    gNewWindow.gBrowser.selectedBrowser
  );
  ok(pluginInfo.activated, "plugin should be activated");
});