chrome/browser/importer/external_process_importer_host.h

   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 #ifndef CHROME_BROWSER_IMPORTER_EXTERNAL_PROCESS_IMPORTER_HOST_H_
   6 #define CHROME_BROWSER_IMPORTER_EXTERNAL_PROCESS_IMPORTER_HOST_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/compiler_specific.h"
  10 #include "base/memory/ref_counted.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "chrome/browser/importer/importer_progress_observer.h"
  14 #include "chrome/browser/importer/profile_writer.h"
  15 #include "chrome/browser/search_engines/template_url_service.h"
  16 #include "chrome/common/importer/importer_data_types.h"
  17 #include "components/bookmarks/browser/base_bookmark_model_observer.h"
  18 #include "ui/gfx/native_widget_types.h"
  19
  20 class ExternalProcessImporterClient;
  21 class FirefoxProfileLock;
  22 class Importer;
  23 class Profile;
  24
  25 namespace importer {
  26 struct SourceProfile;
  27 }
  28
  29 // This class manages the import process. It creates the in-process half of the
  30 // importer bridge and the external process importer client.
  31 class ExternalProcessImporterHost : public BaseBookmarkModelObserver {
  32  public:
  33   ExternalProcessImporterHost();
  34
  35   void Cancel();
  36
  37   // Starts the process of importing the settings and data depending on what the
  38   // user selected.
  39   // |source_profile| - importer profile to import.
  40   // |target_profile| - profile to import into.
  41   // |items| - specifies which data to import (bitmask of importer::ImportItem).
  42   // |writer| - called to actually write data back to the profile.
  43   virtual void StartImportSettings(
  44       const importer::SourceProfile& source_profile,
  45       Profile* target_profile,
  46       uint16 items,
  47       ProfileWriter* writer);
  48
  49   // When in headless mode, the importer will not show any warning dialog if
  50   // a user action is required (e.g., Firefox profile is locked and user should
  51   // close Firefox to continue) and the outcome is as if the user had canceled
  52   // the import operation.
  53   void set_headless() { headless_ = true; }
  54   bool is_headless() const { return headless_; }
  55
  56   void set_parent_window(gfx::NativeWindow parent_window) {
  57     parent_window_ = parent_window;
  58   }
  59
  60   void set_observer(importer::ImporterProgressObserver* observer) {
  61     observer_ = observer;
  62   }
  63
  64   // A series of functions invoked at the start, during and end of the import
  65   // process. The middle functions are notifications that the a harvesting of a
  66   // particular source of data (specified by |item|) is under way.
  67   void NotifyImportStarted();
  68   void NotifyImportItemStarted(importer::ImportItem item);
  69   void NotifyImportItemEnded(importer::ImportItem item);
  70   void NotifyImportEnded();
  71
  72  private:
  73   // ExternalProcessImporterHost deletes itself in OnImportEnded().
  74   virtual ~ExternalProcessImporterHost();
  75
  76   // Launches the utility process that starts the import task, unless bookmark
  77   // or template model are not yet loaded. If load is not detected, this method
  78   // will be called when the loading observer sees that model loading is
  79   // complete.
  80   virtual void LaunchImportIfReady();
  81
  82   // BaseBookmarkModelObserver:
  83   virtual void BookmarkModelLoaded(BookmarkModel* model,
  84                                    bool ids_reassigned) OVERRIDE;
  85   virtual void BookmarkModelBeingDeleted(BookmarkModel* model) OVERRIDE;
  86   virtual void BookmarkModelChanged() OVERRIDE;
  87
  88   // Called when TemplateURLService has been loaded.
  89   void OnTemplateURLServiceLoaded();
  90
  91   // ShowWarningDialog() asks user to close the application that is owning the
  92   // lock. They can retry or skip the importing process.
  93   // This method should not be called if the importer is in headless mode.
  94   void ShowWarningDialog();
  95
  96   // This is called when when user ends the lock dialog by clicking on either
  97   // the "Skip" or "Continue" buttons. |is_continue| is true when user clicked
  98   // the "Continue" button.
  99   void OnImportLockDialogEnd(bool is_continue);
 100
 101   // Make sure that Firefox isn't running, if import browser is Firefox. Show
 102   // to the user a dialog that notifies that is necessary to close Firefox
 103   // prior to continue.
 104   // |source_profile| - importer profile to import.
 105   // Returns false iff import should be aborted.
 106   bool CheckForFirefoxLock(const importer::SourceProfile& source_profile);
 107
 108   // Make sure BookmarkModel and TemplateURLService are loaded before import
 109   // process starts, if bookmarks and/or search engines are among the items
 110   // which are to be imported.
 111   void CheckForLoadedModels(uint16 items);
 112
 113   // True if UI is not to be shown.
 114   bool headless_;
 115
 116   // Parent window that we pass to the import lock dialog (i.e, the Firefox
 117   // warning dialog).
 118   gfx::NativeWindow parent_window_;
 119
 120   // The observer that we need to notify about changes in the import process.
 121   importer::ImporterProgressObserver* observer_;
 122
 123   // Firefox profile lock.
 124   scoped_ptr<FirefoxProfileLock> firefox_lock_;
 125
 126   // Profile we're importing from.
 127   Profile* profile_;
 128
 129   // True if we're waiting for the model to finish loading.
 130   bool waiting_for_bookmarkbar_model_;
 131
 132   // May contain a Subscription waiting for the TemplateURLService to finish
 133   // loading.
 134   scoped_ptr<TemplateURLService::Subscription> template_service_subscription_;
 135
 136   // Have we installed a listener on the bookmark model?
 137   bool installed_bookmark_observer_;
 138
 139   // True if source profile is readable.
 140   bool is_source_readable_;
 141
 142   // Writes data from the importer back to the profile.
 143   scoped_refptr<ProfileWriter> writer_;
 144
 145   // Used to pass notifications from the browser side to the external process.
 146   ExternalProcessImporterClient* client_;
 147
 148   // Information about a profile needed for importing.
 149   importer::SourceProfile source_profile_;
 150
 151   // Bitmask of items to be imported (see importer::ImportItem enum).
 152   uint16 items_;
 153
 154   // True if the import process has been cancelled.
 155   bool cancelled_;
 156
 157   // Vends weak pointers for the importer to call us back.
 158   base::WeakPtrFactory<ExternalProcessImporterHost> weak_ptr_factory_;
 159
 160   DISALLOW_COPY_AND_ASSIGN(ExternalProcessImporterHost);
 161 };
 162
 163 #endif  // CHROME_BROWSER_IMPORTER_EXTERNAL_PROCESS_IMPORTER_HOST_H_