chrome/browser/undo/bookmark_undo_service.cc

   1 // Copyright 2013 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/undo/bookmark_undo_service.h"
   6
   7 #include "chrome/browser/bookmarks/bookmark_model.h"
   8 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
   9 #include "chrome/browser/bookmarks/bookmark_node_data.h"
  10 #include "chrome/browser/bookmarks/bookmark_utils.h"
  11 #include "chrome/browser/profiles/profile.h"
  12 #include "chrome/browser/undo/bookmark_renumber_observer.h"
  13 #include "chrome/browser/undo/bookmark_undo_service_factory.h"
  14 #include "chrome/browser/undo/bookmark_undo_utils.h"
  15 #include "chrome/browser/undo/undo_operation.h"
  16 #include "grit/generated_resources.h"
  17 #include "ui/base/l10n/l10n_util.h"
  18
  19 namespace {
  20
  21 // BookmarkUndoOperation ------------------------------------------------------
  22
  23 // Base class for all bookmark related UndoOperations that facilitates access to
  24 // the BookmarkUndoService.
  25 class BookmarkUndoOperation : public UndoOperation,
  26                               public BookmarkRenumberObserver {
  27  public:
  28   explicit BookmarkUndoOperation(Profile* profile);
  29   virtual ~BookmarkUndoOperation() {}
  30
  31   BookmarkModel* GetBookmarkModel() const;
  32   BookmarkRenumberObserver* GetUndoRenumberObserver() const;
  33
  34  private:
  35   Profile* profile_;
  36 };
  37
  38 BookmarkUndoOperation::BookmarkUndoOperation(Profile* profile)
  39     : profile_(profile) {
  40 }
  41
  42 BookmarkModel* BookmarkUndoOperation::GetBookmarkModel() const {
  43   return BookmarkModelFactory::GetForProfile(profile_);
  44 }
  45
  46 BookmarkRenumberObserver* BookmarkUndoOperation::GetUndoRenumberObserver()
  47     const {
  48   return BookmarkUndoServiceFactory::GetForProfile(profile_);
  49 }
  50
  51 // BookmarkAddOperation -------------------------------------------------------
  52
  53 // Handles the undo of the insertion of a bookmark or folder.
  54 class BookmarkAddOperation : public BookmarkUndoOperation {
  55  public:
  56   BookmarkAddOperation(Profile* profile, const BookmarkNode* parent, int index);
  57   virtual ~BookmarkAddOperation() {}
  58
  59   // UndoOperation:
  60   virtual void Undo() OVERRIDE;
  61   virtual int GetUndoLabelId() const OVERRIDE;
  62   virtual int GetRedoLabelId() const OVERRIDE;
  63
  64   // BookmarkRenumberObserver:
  65   virtual void OnBookmarkRenumbered(int64 old_id, int64 new_id) OVERRIDE;
  66
  67  private:
  68   int64 parent_id_;
  69   const int index_;
  70
  71   DISALLOW_COPY_AND_ASSIGN(BookmarkAddOperation);
  72 };
  73
  74 BookmarkAddOperation::BookmarkAddOperation(Profile* profile,
  75                                            const BookmarkNode* parent,
  76                                            int index)
  77   : BookmarkUndoOperation(profile),
  78     parent_id_(parent->id()),
  79     index_(index) {
  80 }
  81
  82 void BookmarkAddOperation::Undo() {
  83   BookmarkModel* model = GetBookmarkModel();
  84   const BookmarkNode* parent = model->GetNodeByID(parent_id_);
  85   DCHECK(parent);
  86
  87   model->Remove(parent, index_);
  88 }
  89
  90 int BookmarkAddOperation::GetUndoLabelId() const {
  91   return IDS_BOOKMARK_BAR_UNDO_ADD;
  92 }
  93
  94 int BookmarkAddOperation::GetRedoLabelId() const {
  95   return IDS_BOOKMARK_BAR_REDO_DELETE;
  96 }
  97
  98 void BookmarkAddOperation::OnBookmarkRenumbered(int64 old_id, int64 new_id) {
  99   if (parent_id_ == old_id)
 100     parent_id_ = new_id;
 101 }
 102
 103 // BookmarkRemoveOperation ----------------------------------------------------
 104
 105 // Handles the undo of the deletion of a bookmark node. For a bookmark folder,
 106 // the information for all descendant bookmark nodes is maintained.
 107 //
 108 // The BookmarkModel allows only single bookmark node to be removed.
 109 class BookmarkRemoveOperation : public BookmarkUndoOperation {
 110  public:
 111   BookmarkRemoveOperation(Profile* profile,
 112                           const BookmarkNode* parent,
 113                           int old_index,
 114                           const BookmarkNode* node);
 115   virtual ~BookmarkRemoveOperation() {}
 116
 117   // UndoOperation:
 118   virtual void Undo() OVERRIDE;
 119   virtual int GetUndoLabelId() const OVERRIDE;
 120   virtual int GetRedoLabelId() const OVERRIDE;
 121
 122   // BookmarkRenumberObserver:
 123   virtual void OnBookmarkRenumbered(int64 old_id, int64 new_id) OVERRIDE;
 124
 125  private:
 126   void UpdateBookmarkIds(const BookmarkNodeData::Element& element,
 127                          const BookmarkNode* parent,
 128                          int index_added_at) const;
 129
 130   int64 parent_id_;
 131   const int old_index_;
 132   BookmarkNodeData removed_node_;
 133
 134   DISALLOW_COPY_AND_ASSIGN(BookmarkRemoveOperation);
 135 };
 136
 137 BookmarkRemoveOperation::BookmarkRemoveOperation(Profile* profile,
 138                                                  const BookmarkNode* parent,
 139                                                  int old_index,
 140                                                  const BookmarkNode* node)
 141   : BookmarkUndoOperation(profile),
 142     parent_id_(parent->id()),
 143     old_index_(old_index),
 144     removed_node_(node) {
 145 }
 146
 147 void BookmarkRemoveOperation::Undo() {
 148   DCHECK(removed_node_.is_valid());
 149   BookmarkModel* model = GetBookmarkModel();
 150   const BookmarkNode* parent = model->GetNodeByID(parent_id_);
 151   DCHECK(parent);
 152
 153   bookmark_utils::CloneBookmarkNode(model, removed_node_.elements, parent,
 154                                     old_index_, false);
 155   UpdateBookmarkIds(removed_node_.elements[0], parent, old_index_);
 156 }
 157
 158 int BookmarkRemoveOperation::GetUndoLabelId() const {
 159   return IDS_BOOKMARK_BAR_UNDO_DELETE;
 160 }
 161
 162 int BookmarkRemoveOperation::GetRedoLabelId() const {
 163   return IDS_BOOKMARK_BAR_REDO_ADD;
 164 }
 165
 166 void BookmarkRemoveOperation::UpdateBookmarkIds(
 167     const BookmarkNodeData::Element& element,
 168     const BookmarkNode* parent,
 169     int index_added_at) const {
 170   const BookmarkNode* node = parent->GetChild(index_added_at);
 171   if (element.id() != node->id())
 172     GetUndoRenumberObserver()->OnBookmarkRenumbered(element.id(), node->id());
 173   if (!element.is_url) {
 174     for (int i = 0; i < static_cast<int>(element.children.size()); ++i)
 175       UpdateBookmarkIds(element.children[i], node, 0);
 176   }
 177 }
 178
 179 void BookmarkRemoveOperation::OnBookmarkRenumbered(int64 old_id, int64 new_id) {
 180   if (parent_id_ == old_id)
 181     parent_id_ = new_id;
 182 }
 183
 184 // BookmarkEditOperation ------------------------------------------------------
 185
 186 // Handles the undo of the modification of a bookmark node.
 187 class BookmarkEditOperation : public BookmarkUndoOperation {
 188  public:
 189   BookmarkEditOperation(Profile* profile,
 190                         const BookmarkNode* node);
 191   virtual ~BookmarkEditOperation() {}
 192
 193   // UndoOperation:
 194   virtual void Undo() OVERRIDE;
 195   virtual int GetUndoLabelId() const OVERRIDE;
 196   virtual int GetRedoLabelId() const OVERRIDE;
 197
 198   // BookmarkRenumberObserver:
 199   virtual void OnBookmarkRenumbered(int64 old_id, int64 new_id) OVERRIDE;
 200
 201  private:
 202   int64 node_id_;
 203   BookmarkNodeData original_bookmark_;
 204
 205   DISALLOW_COPY_AND_ASSIGN(BookmarkEditOperation);
 206 };
 207
 208 BookmarkEditOperation::BookmarkEditOperation(Profile* profile,
 209                                              const BookmarkNode* node)
 210     : BookmarkUndoOperation(profile),
 211       node_id_(node->id()),
 212       original_bookmark_(node) {
 213 }
 214
 215 void BookmarkEditOperation::Undo() {
 216   DCHECK(original_bookmark_.is_valid());
 217   BookmarkModel* model = GetBookmarkModel();
 218   const BookmarkNode* node = model->GetNodeByID(node_id_);
 219   DCHECK(node);
 220
 221   model->SetTitle(node, original_bookmark_.elements[0].title);
 222   if (original_bookmark_.elements[0].is_url)
 223     model->SetURL(node, original_bookmark_.elements[0].url);
 224 }
 225
 226 int BookmarkEditOperation::GetUndoLabelId() const {
 227   return IDS_BOOKMARK_BAR_UNDO_EDIT;
 228 }
 229
 230 int BookmarkEditOperation::GetRedoLabelId() const {
 231   return IDS_BOOKMARK_BAR_REDO_EDIT;
 232 }
 233
 234 void BookmarkEditOperation::OnBookmarkRenumbered(int64 old_id, int64 new_id) {
 235   if (node_id_ == old_id)
 236     node_id_ = new_id;
 237 }
 238
 239 // BookmarkMoveOperation ------------------------------------------------------
 240
 241 // Handles the undo of a bookmark being moved to a new location.
 242 class BookmarkMoveOperation : public BookmarkUndoOperation {
 243  public:
 244   BookmarkMoveOperation(Profile* profile,
 245                         const BookmarkNode* old_parent,
 246                         int old_index,
 247                         const BookmarkNode* new_parent,
 248                         int new_index);
 249   virtual ~BookmarkMoveOperation() {}
 250   virtual int GetUndoLabelId() const OVERRIDE;
 251   virtual int GetRedoLabelId() const OVERRIDE;
 252
 253   // UndoOperation:
 254   virtual void Undo() OVERRIDE;
 255
 256   // BookmarkRenumberObserver:
 257   virtual void OnBookmarkRenumbered(int64 old_id, int64 new_id) OVERRIDE;
 258
 259  private:
 260   int64 old_parent_id_;
 261   int64 new_parent_id_;
 262   int old_index_;
 263   int new_index_;
 264
 265   DISALLOW_COPY_AND_ASSIGN(BookmarkMoveOperation);
 266 };
 267
 268 BookmarkMoveOperation::BookmarkMoveOperation(Profile* profile,
 269                                              const BookmarkNode* old_parent,
 270                                              int old_index,
 271                                              const BookmarkNode* new_parent,
 272                                              int new_index)
 273     : BookmarkUndoOperation(profile),
 274       old_parent_id_(old_parent->id()),
 275       new_parent_id_(new_parent->id()),
 276       old_index_(old_index),
 277       new_index_(new_index) {
 278 }
 279
 280 void BookmarkMoveOperation::Undo() {
 281   BookmarkModel* model = GetBookmarkModel();
 282   const BookmarkNode* old_parent = model->GetNodeByID(old_parent_id_);
 283   const BookmarkNode* new_parent = model->GetNodeByID(new_parent_id_);
 284   DCHECK(old_parent);
 285   DCHECK(new_parent);
 286
 287   const BookmarkNode* node = new_parent->GetChild(new_index_);
 288   int destination_index = old_index_;
 289
 290   // If the bookmark was moved up within the same parent then the destination
 291   // index needs to be incremented since the old index did not account for the
 292   // moved bookmark.
 293   if (old_parent == new_parent && new_index_ < old_index_)
 294     ++destination_index;
 295
 296   model->Move(node, old_parent, destination_index);
 297 }
 298
 299 int BookmarkMoveOperation::GetUndoLabelId() const {
 300   return IDS_BOOKMARK_BAR_UNDO_MOVE;
 301 }
 302
 303 int BookmarkMoveOperation::GetRedoLabelId() const {
 304   return IDS_BOOKMARK_BAR_REDO_MOVE;
 305 }
 306
 307 void BookmarkMoveOperation::OnBookmarkRenumbered(int64 old_id, int64 new_id) {
 308   if (old_parent_id_ == old_id)
 309     old_parent_id_ = new_id;
 310   if (new_parent_id_ == old_id)
 311     new_parent_id_ = new_id;
 312 }
 313
 314 // BookmarkReorderOperation ---------------------------------------------------
 315
 316 // Handle the undo of reordering of bookmarks that can happen as a result of
 317 // sorting a bookmark folder by name or the undo of that operation.  The change
 318 // of order is not recursive so only the order of the immediate children of the
 319 // folder need to be restored.
 320 class BookmarkReorderOperation : public BookmarkUndoOperation {
 321  public:
 322   BookmarkReorderOperation(Profile* profile,
 323                            const BookmarkNode* parent);
 324   virtual ~BookmarkReorderOperation();
 325
 326   // UndoOperation:
 327   virtual void Undo() OVERRIDE;
 328   virtual int GetUndoLabelId() const OVERRIDE;
 329   virtual int GetRedoLabelId() const OVERRIDE;
 330
 331   // BookmarkRenumberObserver:
 332   virtual void OnBookmarkRenumbered(int64 old_id, int64 new_id) OVERRIDE;
 333
 334  private:
 335   int64 parent_id_;
 336   std::vector<int64> ordered_bookmarks_;
 337
 338   DISALLOW_COPY_AND_ASSIGN(BookmarkReorderOperation);
 339 };
 340
 341 BookmarkReorderOperation::BookmarkReorderOperation(Profile* profile,
 342                                                    const BookmarkNode* parent)
 343     : BookmarkUndoOperation(profile),
 344       parent_id_(parent->id()) {
 345   ordered_bookmarks_.resize(parent->child_count());
 346   for (int i = 0; i < parent->child_count(); ++i)
 347     ordered_bookmarks_[i] = parent->GetChild(i)->id();
 348 }
 349
 350 BookmarkReorderOperation::~BookmarkReorderOperation() {
 351 }
 352
 353 void BookmarkReorderOperation::Undo() {
 354   BookmarkModel* model = GetBookmarkModel();
 355   const BookmarkNode* parent = model->GetNodeByID(parent_id_);
 356   DCHECK(parent);
 357
 358   std::vector<const BookmarkNode*> ordered_nodes;
 359   for (size_t i = 0; i < ordered_bookmarks_.size(); ++i)
 360     ordered_nodes.push_back(model->GetNodeByID(ordered_bookmarks_[i]));
 361
 362   model->ReorderChildren(parent, ordered_nodes);
 363 }
 364
 365 int BookmarkReorderOperation::GetUndoLabelId() const {
 366   return IDS_BOOKMARK_BAR_UNDO_REORDER;
 367 }
 368
 369 int BookmarkReorderOperation::GetRedoLabelId() const {
 370   return IDS_BOOKMARK_BAR_REDO_REORDER;
 371 }
 372
 373 void BookmarkReorderOperation::OnBookmarkRenumbered(int64 old_id,
 374                                                     int64 new_id) {
 375   if (parent_id_ == old_id)
 376     parent_id_ = new_id;
 377   for (size_t i = 0; i < ordered_bookmarks_.size(); ++i) {
 378     if (ordered_bookmarks_[i] == old_id)
 379       ordered_bookmarks_[i] = new_id;
 380   }
 381 }
 382
 383 }  // namespace
 384
 385 // BookmarkUndoService --------------------------------------------------------
 386
 387 BookmarkUndoService::BookmarkUndoService(Profile* profile) : profile_(profile) {
 388 }
 389
 390 BookmarkUndoService::~BookmarkUndoService() {
 391   BookmarkModelFactory::GetForProfile(profile_)->RemoveObserver(this);
 392 }
 393
 394 void BookmarkUndoService::OnBookmarkRenumbered(int64 old_id, int64 new_id) {
 395   std::vector<UndoOperation*> all_operations =
 396       undo_manager()->GetAllUndoOperations();
 397   for (std::vector<UndoOperation*>::iterator it = all_operations.begin();
 398        it != all_operations.end(); ++it) {
 399     static_cast<BookmarkUndoOperation*>(*it)->OnBookmarkRenumbered(old_id,
 400                                                                    new_id);
 401   }
 402 }
 403
 404 void BookmarkUndoService::BookmarkModelLoaded(BookmarkModel* model,
 405                                               bool ids_reassigned) {
 406   undo_manager_.RemoveAllOperations();
 407 }
 408
 409 void BookmarkUndoService::BookmarkModelBeingDeleted(BookmarkModel* model) {
 410   undo_manager_.RemoveAllOperations();
 411 }
 412
 413 void BookmarkUndoService::BookmarkNodeMoved(BookmarkModel* model,
 414                                             const BookmarkNode* old_parent,
 415                                             int old_index,
 416                                             const BookmarkNode* new_parent,
 417                                             int new_index) {
 418   scoped_ptr<UndoOperation> op(new BookmarkMoveOperation(profile_,
 419                                                          old_parent,
 420                                                          old_index,
 421                                                          new_parent,
 422                                                          new_index));
 423   undo_manager()->AddUndoOperation(op.Pass());
 424 }
 425
 426 void BookmarkUndoService::BookmarkNodeAdded(BookmarkModel* model,
 427                                             const BookmarkNode* parent,
 428                                             int index) {
 429   scoped_ptr<UndoOperation> op(new BookmarkAddOperation(profile_,
 430                                                         parent,
 431                                                         index));
 432   undo_manager()->AddUndoOperation(op.Pass());
 433 }
 434
 435 void BookmarkUndoService::OnWillRemoveBookmarks(BookmarkModel* model,
 436                                                 const BookmarkNode* parent,
 437                                                 int old_index,
 438                                                 const BookmarkNode* node) {
 439   scoped_ptr<UndoOperation> op(new BookmarkRemoveOperation(profile_,
 440                                                            parent,
 441                                                            old_index,
 442                                                            node));
 443   undo_manager()->AddUndoOperation(op.Pass());
 444 }
 445
 446 void BookmarkUndoService::OnWillRemoveAllBookmarks(BookmarkModel* model) {
 447   ScopedGroupBookmarkActions merge_removes(profile_);
 448   for (int i = 0; i < model->root_node()->child_count(); ++i) {
 449     const BookmarkNode* permanent_node = model->root_node()->GetChild(i);
 450     for (int j = permanent_node->child_count() - 1; j >= 0; --j) {
 451       scoped_ptr<UndoOperation> op(new BookmarkRemoveOperation(profile_,
 452           permanent_node, j, permanent_node->GetChild(j)));
 453       undo_manager()->AddUndoOperation(op.Pass());
 454     }
 455   }
 456 }
 457
 458 void BookmarkUndoService::OnWillChangeBookmarkNode(BookmarkModel* model,
 459                                                    const BookmarkNode* node) {
 460   scoped_ptr<UndoOperation> op(new BookmarkEditOperation(profile_, node));
 461   undo_manager()->AddUndoOperation(op.Pass());
 462 }
 463
 464 void BookmarkUndoService::OnWillReorderBookmarkNode(BookmarkModel* model,
 465                                                     const BookmarkNode* node) {
 466   scoped_ptr<UndoOperation> op(new BookmarkReorderOperation(profile_, node));
 467   undo_manager()->AddUndoOperation(op.Pass());
 468 }