src/chrome/browser/chromeos/file_manager/open_util.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/chromeos/file_manager/open_util.h"
   6
   7 #include "base/bind.h"
   8 #include "base/files/file_path.h"
   9 #include "base/logging.h"
  10 #include "base/strings/utf_string_conversions.h"
  11 #include "chrome/browser/chromeos/drive/file_system_util.h"
  12 #include "chrome/browser/chromeos/file_manager/app_id.h"
  13 #include "chrome/browser/chromeos/file_manager/file_tasks.h"
  14 #include "chrome/browser/chromeos/file_manager/fileapi_util.h"
  15 #include "chrome/browser/chromeos/file_manager/path_util.h"
  16 #include "chrome/browser/chromeos/file_manager/url_util.h"
  17 #include "chrome/browser/extensions/api/file_handlers/mime_util.h"
  18 #include "chrome/browser/ui/browser.h"
  19 #include "chrome/browser/ui/browser_finder.h"
  20 #include "chrome/browser/ui/browser_window.h"
  21 #include "chrome/browser/ui/simple_message_box.h"
  22 #include "chrome/grit/generated_resources.h"
  23 #include "content/public/browser/browser_thread.h"
  24 #include "content/public/browser/user_metrics.h"
  25 #include "ui/base/l10n/l10n_util.h"
  26 #include "webkit/browser/fileapi/file_system_backend.h"
  27 #include "webkit/browser/fileapi/file_system_context.h"
  28 #include "webkit/browser/fileapi/file_system_operation_runner.h"
  29 #include "webkit/browser/fileapi/file_system_url.h"
  30
  31 using content::BrowserThread;
  32 using fileapi::FileSystemURL;
  33
  34 namespace file_manager {
  35 namespace util {
  36 namespace {
  37
  38 // Shows a warning message box saying that the file could not be opened.
  39 void ShowWarningMessageBox(Profile* profile,
  40                            const base::FilePath& file_path,
  41                            int message_id) {
  42   Browser* browser = chrome::FindTabbedBrowser(
  43       profile, false, chrome::HOST_DESKTOP_TYPE_ASH);
  44   chrome::ShowMessageBox(
  45       browser ? browser->window()->GetNativeWindow() : NULL,
  46       l10n_util::GetStringFUTF16(
  47           IDS_FILE_BROWSER_ERROR_VIEWING_FILE_TITLE,
  48           base::UTF8ToUTF16(file_path.BaseName().AsUTF8Unsafe())),
  49       l10n_util::GetStringUTF16(message_id),
  50       chrome::MESSAGE_BOX_TYPE_WARNING);
  51 }
  52
  53 // Executes the |task| for the file specified by |url|.
  54 void ExecuteFileTaskForUrl(Profile* profile,
  55                            const file_tasks::TaskDescriptor& task,
  56                            const GURL& url) {
  57   fileapi::FileSystemContext* file_system_context =
  58       GetFileSystemContextForExtensionId(profile, kFileManagerAppId);
  59
  60   file_tasks::ExecuteFileTask(
  61       profile,
  62       GetFileManagerMainPageUrl(), // Executing the task on behalf of Files.app.
  63       task,
  64       std::vector<FileSystemURL>(1, file_system_context->CrackURL(url)),
  65       file_tasks::FileTaskFinishedCallback());
  66 }
  67
  68 // Opens the file manager for the specified |url|. Used to implement
  69 // internal handlers of special action IDs:
  70 //
  71 // "open" - Open the file manager for the given folder.
  72 // "auto-open" - Open the file manager for the given removal drive and close
  73 //               the file manager when the removal drive is unmounted.
  74 // "select" - Open the file manager for the given file. The folder containing
  75 //            the file will be opened with the file selected.
  76 void OpenFileManagerWithInternalActionId(Profile* profile,
  77                                          const GURL& url,
  78                                          const std::string& action_id) {
  79   DCHECK(action_id == "auto-open" ||
  80          action_id == "open" ||
  81          action_id == "select");
  82   content::RecordAction(base::UserMetricsAction("ShowFileBrowserFullTab"));
  83
  84   file_tasks::TaskDescriptor task(kFileManagerAppId,
  85                                   file_tasks::TASK_TYPE_FILE_BROWSER_HANDLER,
  86                                   action_id);
  87   ExecuteFileTaskForUrl(profile, task, url);
  88 }
  89
  90 // Opens the file with fetched MIME type and calls the callback.
  91 void OpenFileWithMimeType(Profile* profile,
  92                           const base::FilePath& path,
  93                           const GURL& url,
  94                           const base::Callback<void(bool)>& callback,
  95                           const std::string& mime_type) {
  96   extensions::app_file_handler_util::PathAndMimeTypeSet path_mime_set;
  97   path_mime_set.insert(std::make_pair(path, mime_type));
  98
  99   std::vector<GURL> file_urls;
 100   file_urls.push_back(url);
 101
 102   std::vector<file_tasks::FullTaskDescriptor> tasks;
 103   file_tasks::FindAllTypesOfTasks(
 104       profile,
 105       drive::util::GetDriveAppRegistryByProfile(profile),
 106       path_mime_set,
 107       file_urls,
 108       &tasks);
 109
 110   if (tasks.empty()) {
 111     callback.Run(false);
 112     return;
 113   }
 114
 115   const file_tasks::FullTaskDescriptor* chosen_task = &tasks[0];
 116   for (size_t i = 0; i < tasks.size(); ++i) {
 117     if (tasks[i].is_default()) {
 118       chosen_task = &tasks[i];
 119       break;
 120     }
 121   }
 122
 123   ExecuteFileTaskForUrl(profile, chosen_task->task_descriptor(), url);
 124   callback.Run(true);
 125 }
 126
 127 // Opens the file specified by |url| by finding and executing a file task for
 128 // the file. In case of success, calls |callback| with true. Otherwise the
 129 // returned value is false.
 130 void OpenFile(Profile* profile,
 131               const base::FilePath& path,
 132               const GURL& url,
 133               const base::Callback<void(bool)>& callback) {
 134   extensions::app_file_handler_util::GetMimeTypeForLocalPath(
 135       profile,
 136       path,
 137       base::Bind(&OpenFileWithMimeType, profile, path, url, callback));
 138 }
 139
 140 // Called when execution of ContinueOpenItem() is completed.
 141 void OnContinueOpenItemCompleted(Profile* profile,
 142                                  const base::FilePath& file_path,
 143                                  bool result) {
 144   if (!result) {
 145     ShowWarningMessageBox(
 146         profile, file_path, IDS_FILE_BROWSER_ERROR_VIEWING_FILE);
 147   }
 148 }
 149
 150 // Used to implement OpenItem().
 151 void ContinueOpenItem(Profile* profile,
 152                       const base::FilePath& file_path,
 153                       const GURL& url,
 154                       base::File::Error error) {
 155   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 156
 157   if (error == base::File::FILE_OK) {
 158     // A directory exists at |url|. Open it with the file manager.
 159     OpenFileManagerWithInternalActionId(profile, url, "open");
 160   } else {
 161     // |url| should be a file. Open it.
 162     OpenFile(profile,
 163              file_path,
 164              url,
 165              base::Bind(&OnContinueOpenItemCompleted, profile, file_path));
 166   }
 167 }
 168
 169 // Converts the |given_path| passed from external callers to the form that the
 170 // file manager can correctly handle. It first migrates old Drive/Download
 171 // folder path to the new formats, and then converts path to filesystem URL.
 172 //
 173 // When conversion fails, it shows a warning dialog UI and returns false.
 174 bool ConvertPath(Profile* profile,
 175                  const base::FilePath& given_path,
 176                  base::FilePath* path,
 177                  GURL* url) {
 178   // The path may have been stored in preferences in old versions.
 179   // We need migration here.
 180   // TODO(kinaba): crbug.com/313539 remove it in the future.
 181   if (!util::MigratePathFromOldFormat(profile, given_path, path))
 182     *path = given_path;
 183
 184   if (!ConvertAbsoluteFilePathToFileSystemUrl(
 185           profile, *path, kFileManagerAppId, url)) {
 186     ShowWarningMessageBox(profile, *path,
 187                           IDS_FILE_BROWSER_ERROR_UNRESOLVABLE_FILE);
 188     return false;
 189   }
 190   return true;
 191 }
 192
 193 }  // namespace
 194
 195 void OpenRemovableDrive(Profile* profile, const base::FilePath& file_path) {
 196   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 197
 198   base::FilePath converted_path;
 199   GURL url;
 200   if (!ConvertPath(profile, file_path, &converted_path, &url))
 201     return;
 202
 203   OpenFileManagerWithInternalActionId(profile, url, "auto-open");
 204 }
 205
 206 void OpenItem(Profile* profile, const base::FilePath& file_path) {
 207   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 208
 209   base::FilePath converted_path;
 210   GURL url;
 211   if (!ConvertPath(profile, file_path, &converted_path, &url))
 212     return;
 213
 214   CheckIfDirectoryExists(
 215       GetFileSystemContextForExtensionId(profile, kFileManagerAppId),
 216       url,
 217       base::Bind(&ContinueOpenItem, profile, converted_path, url));
 218 }
 219
 220 void ShowItemInFolder(Profile* profile, const base::FilePath& file_path) {
 221   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 222
 223   base::FilePath converted_path;
 224   GURL url;
 225   if (!ConvertPath(profile, file_path, &converted_path, &url))
 226     return;
 227
 228   // This action changes the selection so we do not reuse existing tabs.
 229   OpenFileManagerWithInternalActionId(profile, url, "select");
 230 }
 231
 232 }  // namespace util
 233 }  // namespace file_manager