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/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";

const { getMostRecentBrowserWindow } = require('sdk/window/utils');
const { PageMod } = require("sdk/page-mod");
const { getActiveTab, setTabURL, openTab, closeTab } = require('sdk/tabs/utils');
const xulApp = require('sdk/system/xul-app');
const windowHelpers = require('sdk/window/helpers');
const { defer } = require("sdk/core/promise");
const { isPrivate } = require('sdk/private-browsing');
const { isTabPBSupported, isWindowPBSupported } = require('sdk/private-browsing/utils');
const { cleanUI } = require('sdk/test/utils');

function openWebpage(url, enablePrivate) {
  return new Promise((resolve, reject) => {
    if (xulApp.is("Fennec")) {
      let chromeWindow = getMostRecentBrowserWindow();
      let rawTab = openTab(chromeWindow, url, {
        isPrivate: enablePrivate
      });

      resolve(() => new Promise(resolve => {
        closeTab(rawTab);
        resolve();
      }));
    }
    else {
      windowHelpers.open("", {
        features: {
          toolbar: true,
          private: enablePrivate
        }
      }).
        then((chromeWindow) => {
          if (isPrivate(chromeWindow) !== !!enablePrivate) {
            reject(new Error("Window should have Private set to " + !!enablePrivate));
          }

          let tab = getActiveTab(chromeWindow);
          setTabURL(tab, url);

          resolve(() => windowHelpers.close(chromeWindow));
        }).
        catch(reject);
    }
  });
}

exports["test page-mod on private tab"] = function*(assert) {
  // Only set private mode when explicitely supported.
  // (fennec 19 has some intermediate PB support where isTabPBSupported
  // will be false, but isPrivate(worker.tab) will be true if we open a private
  // tab)
  let setPrivate = isTabPBSupported || isWindowPBSupported;

  let id = Date.now().toString(36);
  let frameUri = "data:text/html;charset=utf-8," + id;
  let uri = "data:text/html;charset=utf-8," +
            encodeURIComponent(id + "<iframe src='" + frameUri + "'><iframe>");

  let count = 0;

  let close = yield openWebpage(uri, setPrivate);
  yield new Promise(resolve => {
    PageMod({
      include: [uri, frameUri],

      onAttach: function(worker) {
        assert.ok(worker.tab.url == uri || worker.tab.url == frameUri,
                  "Got a worker attached to the private window tab");

        if (setPrivate) {
          assert.ok(isPrivate(worker), "The worker is really private");
          assert.ok(isPrivate(worker.tab), "The document is really private");
        }
        else {
          assert.ok(!isPrivate(worker),
                    "private browsing isn't supported, " +
                    "so that the worker isn't private");
          assert.ok(!isPrivate(worker.tab),
                    "private browsing isn't supported, " +
                    "so that the document isn't private");
        }

        if (++count == 2) {
          this.destroy();
          resolve();
        }
      }
    });
  });
  yield close();
  yield cleanUI();
};

exports["test page-mod on non-private tab"] = function*(assert) {
  let id = Date.now().toString(36);
  let url = "data:text/html;charset=utf-8," + encodeURIComponent(id);

  let close = yield openWebpage(url, false);
  let mod;
  let worker = yield new Promise(resolve => {
    mod = PageMod({
      include: url,
      onAttach: resolve
    });
  });

  assert.equal(worker.tab.url, url,
               "Got a worker attached to the private window tab");
  assert.ok(!isPrivate(worker), "The worker is really non-private");
  assert.ok(!isPrivate(worker.tab), "The document is really non-private");

  mod.destroy();
  yield close();
  yield cleanUI();
}