chrome/browser/ui/cocoa/bookmarks/bookmark_model_observer_for_cocoa.mm

   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/ui/cocoa/bookmarks/bookmark_model_observer_for_cocoa.h"
   6
   7 using bookmarks::BookmarkModel;
   8 using bookmarks::BookmarkNode;
   9
  10 BookmarkModelObserverForCocoa::BookmarkModelObserverForCocoa(
  11     BookmarkModel* model,
  12     ChangeCallback callback) {
  13   DCHECK(model);
  14   callback_.reset(Block_copy(callback));
  15   model_ = model;
  16   model_->AddObserver(this);
  17 }
  18
  19 BookmarkModelObserverForCocoa::~BookmarkModelObserverForCocoa() {
  20   model_->RemoveObserver(this);
  21 }
  22
  23 void BookmarkModelObserverForCocoa::StartObservingNode(
  24     const BookmarkNode* node) {
  25   nodes_.insert(node);
  26 }
  27
  28 void BookmarkModelObserverForCocoa::StopObservingNode(
  29     const BookmarkNode* node) {
  30   nodes_.erase(node);
  31 }
  32
  33 void BookmarkModelObserverForCocoa::BookmarkModelBeingDeleted(
  34     BookmarkModel* model) {
  35   Notify();
  36 }
  37
  38 void BookmarkModelObserverForCocoa::BookmarkNodeMoved(
  39     BookmarkModel* model,
  40     const BookmarkNode* old_parent,
  41     int old_index,
  42     const BookmarkNode* new_parent,
  43     int new_index) {
  44   // Editors often have a tree of parents, so movement of folders
  45   // must cause a cancel.
  46   Notify();
  47 }
  48
  49 void BookmarkModelObserverForCocoa::BookmarkNodeRemoved(
  50     BookmarkModel* model,
  51     const BookmarkNode* parent,
  52     int old_index,
  53     const BookmarkNode* node,
  54     const std::set<GURL>& removed_urls) {
  55   // See comment in BookmarkNodeMoved.
  56   Notify();
  57 }
  58
  59 void BookmarkModelObserverForCocoa::BookmarkAllUserNodesRemoved(
  60     BookmarkModel* model,
  61     const std::set<GURL>& removed_urls) {
  62   Notify();
  63 }
  64
  65 void BookmarkModelObserverForCocoa::BookmarkNodeChanged(
  66     BookmarkModel* model,
  67     const BookmarkNode* node) {
  68   if (!nodes_.size() || nodes_.find(node) != nodes_.end())
  69     Notify();
  70 }
  71
  72 void BookmarkModelObserverForCocoa::Notify() {
  73   callback_.get()();
  74 }