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path: root/tests/pagemod-test-helpers.js
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"use strict";

const {Cc,Ci} = require("chrome");

/**
 * A helper function that creates a PageMod, then opens the specified URL
 * and checks the effect of the page mod on 'onload' event via testCallback.
 */
exports.testPageMod = function testPageMod(test, testURL, pageModOptions,
                       testCallback, timeout) {
  var xulApp = require("xul-app");
  if (!xulApp.versionInRange(xulApp.platformVersion, "1.9.3a3", "*") &&
    !xulApp.versionInRange(xulApp.platformVersion, "1.9.2.7", "1.9.2.*")) {
  test.pass("Note: not testing PageMod, as it doesn't work on this platform version");
  return null;
  }

  var wm = Cc['@mozilla.org/appshell/window-mediator;1']
       .getService(Ci.nsIWindowMediator);
  var browserWindow = wm.getMostRecentWindow("navigator:browser");
  if (!browserWindow) {
  test.pass("page-mod tests: could not find the browser window, so " +
        "will not run. Use -a firefox to run the pagemod tests.")
  return null;
  }

  if (timeout !== undefined) {
	test.waitUntilDone(timeout);
  }
  else {
  test.waitUntilDone();
  }

  let loader = test.makeSandboxedLoader();
  let pageMod = loader.require("page-mod");

  var pageMods = [new pageMod.PageMod(opts) for each(opts in pageModOptions)];

  var tabBrowser = browserWindow.gBrowser;
  var newTab = tabBrowser.addTab(testURL);
  tabBrowser.selectedTab = newTab;
  var b = tabBrowser.getBrowserForTab(newTab);

  function onPageLoad() {
  b.removeEventListener("load", onPageLoad, true);
  testCallback(b.contentWindow.wrappedJSObject, function done() {
    pageMods.forEach(function(mod) mod.destroy());
    // XXX leaks reported if we don't close the tab?
    tabBrowser.removeTab(newTab);
    test.done();
  });
  }
  b.addEventListener("load", onPageLoad, true);

  return pageMods;
}