ui/file_manager/integration_tests/testing_provider/background.js

// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

'use strict';

var dialogSettings = {};

function mountFileSystem(onSuccess, onError) {
  chrome.fileSystemProvider.getAll(function(mounted) {
    var index = mounted.length + 1;
    chrome.fileSystemProvider.mount({
      fileSystemId: 'test-fs-' + index,
      displayName: 'Test (' + index + ')'
    });
  });
}

chrome.fileSystemProvider.onGetMetadataRequested.addListener(
    function(options, onSuccess, onError) {
      onSuccess({
        isDirectory: true,
        name: '',
        size: 0,
        modificationTime: new Date()
      });
    });

chrome.fileSystemProvider.onReadDirectoryRequested.addListener(
    function(options, onSuccess, onError) {
      onSuccess([], false /* hasMore */);
    });

chrome.fileSystemProvider.onMountRequested.addListener(mountFileSystem);

chrome.fileSystemProvider.onUnmountRequested.addListener(
    function(options, onSuccess, onError) {
      chrome.fileSystemProvider.unmount(
          {
            fileSystemId: options.fileSystemId
          },
          function() {
            if (chrome.runtime.lastError)
              onError(chrome.runtime.lastError.message);
            else
              onSuccess();
          });
    });

chrome.fileSystemProvider.onGetActionsRequested.addListener(
    function(options, onSuccess, onError) {
      onSucces([]);
    });

// If the manifest for device or file source is used, then mount a fake file
// system on install.
if (chrome.runtime.getManifest().name === "Testing Provider Device" ||
    chrome.runtime.getManifest().name === "Testing Provider File") {
  chrome.runtime.onInstalled.addListener(mountFileSystem);
}