Chrome OS "open with" picker allowing Web Intents

chrome/browser/chromeos/extensions/file_handler_util.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_HANDLER_UTIL_H_
 #define CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_HANDLER_UTIL_H_
 
 #include <vector>
 
 #include "base/callback.h"
 #include "base/platform_file.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/url_pattern_set.h"
 
 class Browser;
 class FileBrowserHandler;
 class GURL;
 class Profile;
 
 namespace file_handler_util {
 
+// Specifies the task type for a task id that represents some file action, Drive
+// action, or Web Intent action.
+enum TaskType {
+  TASK_FILE = 1,
+  TASK_DRIVE,
+  TASK_WEBINTENT
+};
+
 void UpdateFileHandlerUsageStats(Profile* profile, const std::string& task_id);
 
 // Gets read-write file access permission flags.
 int GetReadWritePermissions();
 // Gets read-only file access permission flags.
 int GetReadOnlyPermissions();
 
-// Generates file task id for the file action specified by the extension.
+// Generates task id for the action specified by the extension.
 std::string MakeTaskID(const std::string& extension_id,
+                       TaskType task_type,
                        const std::string& action_id);
 
-// Make a task id specific to drive apps instead of extensions.
-std::string MakeDriveTaskID(const std::string& app_id,
-                            const std::string& action_id);
-
-// Extracts action and extension id bound to the file task.
+// Extracts action, type and extension id bound to the task.
 bool CrackTaskID(const std::string& task_id,
                  std::string* target_extension_id,
+                 TaskType* task_type,
                  std::string* action_id);
 
 // Struct that keeps track of when a handler was `last used.
 // It is used to determine default file action for a file.
 struct LastUsedHandler {
   LastUsedHandler(int t, const FileBrowserHandler* h, URLPatternSet p)
       : timestamp(t),
         handler(h),
         patterns(p) {
   }
@@ skipping 16 matching lines @@
 bool GetDefaultTask(Profile* profile,
                     const GURL& url,
                     const FileBrowserHandler** handler);
 
 // Used for returning success or failure from task executions.
 typedef base::Callback<void(bool)> FileTaskFinishedCallback;
 
 // Helper class for executing file browser file action.
 class FileTaskExecutor : public base::RefCountedThreadSafe<FileTaskExecutor> {
  public:
-  static const char kDriveTaskExtensionPrefix[];
-  static const size_t kDriveTaskExtensionPrefixLength;
-
   // Creates the appropriate FileTaskExecutor for the given |extension_id|.
   static FileTaskExecutor* Create(Profile* profile,
                                   const GURL source_url,
                                   const std::string& extension_id,
+                                  TaskType task_type,
                                   const std::string& action_id);
 
   // Same as ExecuteAndNotify, but no notification is performed.
   virtual bool Execute(const std::vector<GURL>& file_urls);
 
   // Initiates execution of file handler task for each element of |file_urls|.
   // Return |false| if the execution cannot be initiated. Otherwise returns
   // |true| and then eventually calls |done| when all the files have
   // been handled. If there is an error during processing the list of files, the
   // caller will be informed of the failure via |done|, and the rest of
@@ skipping 12 matching lines @@
   Browser* GetBrowser() const;
  private:
   friend class base::RefCountedThreadSafe<FileTaskExecutor>;
 
   Profile* profile_;
 };
 
 }  // namespace file_handler_util
 
 #endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_HANDLER_UTIL_H_