/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* vim: set sts=2 sw=2 et tw=80: */
"use strict";

/* exported AppConstants CustomizableUI forceGC makeWidgetId focusWindow clickBrowserAction clickPageAction */

var {AppConstants} = Cu.import("resource://gre/modules/AppConstants.jsm");
var {CustomizableUI} = Cu.import("resource:///modules/CustomizableUI.jsm");

// Bug 1239884: Our tests occasionally hit a long GC pause at unpredictable
// times in debug builds, which results in intermittent timeouts. Until we have
// a better solution, we force a GC after certain strategic tests, which tend to
// accumulate a high number of unreaped windows.
function forceGC() {
  if (AppConstants.DEBUG) {
    Cu.forceGC();
  }
}

function makeWidgetId(id) {
  id = id.toLowerCase();
  return id.replace(/[^a-z0-9_-]/g, "_");
}

var focusWindow = Task.async(function* focusWindow(win) {
  let fm = Cc["@mozilla.org/focus-manager;1"].getService(Ci.nsIFocusManager);
  if (fm.activeWindow == win) {
    return;
  }

  let promise = new Promise(resolve => {
    win.addEventListener("focus", function listener() {
      win.removeEventListener("focus", listener, true);
      resolve();
    }, true);
  });

  win.focus();
  yield promise;
});

function clickBrowserAction(extension, win = window) {
  let browserActionId = makeWidgetId(extension.id) + "-browser-action";
  let elem = win.document.getElementById(browserActionId);

  EventUtils.synthesizeMouseAtCenter(elem, {}, win);
  return new Promise(SimpleTest.executeSoon);
}

function clickPageAction(extension, win = window) {
  // This would normally be set automatically on navigation, and cleared
  // when the user types a value into the URL bar, to show and hide page
  // identity info and icons such as page action buttons.
  //
  // Unfortunately, that doesn't happen automatically in browser chrome
  // tests.
  /* globals SetPageProxyState */
  SetPageProxyState("valid");

  let pageActionId = makeWidgetId(extension.id) + "-page-action";
  let elem = win.document.getElementById(pageActionId);

  EventUtils.synthesizeMouseAtCenter(elem, {}, win);
  return new Promise(SimpleTest.executeSoon);
}
