| // 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_UI_BOOKMARKS_BOOKMARK_TAB_HELPER_H_ |
| #define CHROME_BROWSER_UI_BOOKMARKS_BOOKMARK_TAB_HELPER_H_ |
| |
| #include "base/macros.h" |
| #include "components/bookmarks/browser/base_bookmark_model_observer.h" |
| #include "content/public/browser/reload_type.h" |
| #include "content/public/browser/web_contents_observer.h" |
| #include "content/public/browser/web_contents_user_data.h" |
| |
| class BookmarkTabHelperObserver; |
| |
| namespace bookmarks { |
| struct BookmarkNodeData; |
| } |
| |
| namespace content { |
| class WebContents; |
| } |
| |
| // Per-tab class to manage bookmarks. |
| class BookmarkTabHelper |
| : public bookmarks::BaseBookmarkModelObserver, |
| public content::WebContentsObserver, |
| public content::WebContentsUserData<BookmarkTabHelper> { |
| public: |
| // Interface for forwarding bookmark drag and drop to extenstions. |
| class BookmarkDrag { |
| public: |
| virtual void OnDragEnter(const bookmarks::BookmarkNodeData& data) = 0; |
| virtual void OnDragOver(const bookmarks::BookmarkNodeData& data) = 0; |
| virtual void OnDragLeave(const bookmarks::BookmarkNodeData& data) = 0; |
| virtual void OnDrop(const bookmarks::BookmarkNodeData& data) = 0; |
| |
| protected: |
| virtual ~BookmarkDrag() {} |
| }; |
| |
| ~BookmarkTabHelper() override; |
| |
| // It is up to callers to call set_bookmark_drag_delegate(NULL) when |
| // |bookmark_drag| is deleted since this class does not take ownership of |
| // |bookmark_drag|. |
| void set_bookmark_drag_delegate(BookmarkDrag* bookmark_drag) { |
| bookmark_drag_ = bookmark_drag; |
| } |
| BookmarkDrag* bookmark_drag_delegate() { return bookmark_drag_; } |
| |
| bool is_starred() const { return is_starred_; } |
| |
| // Returns true if the bookmark bar should be shown detached. |
| bool ShouldShowBookmarkBar() const; |
| |
| void AddObserver(BookmarkTabHelperObserver* observer); |
| void RemoveObserver(BookmarkTabHelperObserver* observer); |
| bool HasObserver(BookmarkTabHelperObserver* observer) const; |
| |
| private: |
| friend class content::WebContentsUserData<BookmarkTabHelper>; |
| |
| explicit BookmarkTabHelper(content::WebContents* web_contents); |
| |
| // Updates the starred state from the BookmarkModel. If the state has changed, |
| // the delegate is notified. |
| void UpdateStarredStateForCurrentURL(); |
| |
| // Overridden from bookmarks::BaseBookmarkModelObserver: |
| void BookmarkModelChanged() override; |
| void BookmarkModelLoaded(bookmarks::BookmarkModel* model, |
| bool ids_reassigned) override; |
| void BookmarkNodeAdded(bookmarks::BookmarkModel* model, |
| const bookmarks::BookmarkNode* parent, |
| int index) override; |
| void BookmarkNodeRemoved(bookmarks::BookmarkModel* model, |
| const bookmarks::BookmarkNode* parent, |
| int old_index, |
| const bookmarks::BookmarkNode* node, |
| const std::set<GURL>& removed_urls) override; |
| void BookmarkAllUserNodesRemoved(bookmarks::BookmarkModel* model, |
| const std::set<GURL>& removed_urls) override; |
| void BookmarkNodeChanged(bookmarks::BookmarkModel* model, |
| const bookmarks::BookmarkNode* node) override; |
| |
| // Overridden from content::WebContentsObserver: |
| void DidStartNavigation( |
| content::NavigationHandle* navigation_handle) override; |
| void DidFinishNavigation( |
| content::NavigationHandle* navigation_handle) override; |
| void DidAttachInterstitialPage() override; |
| void DidDetachInterstitialPage() override; |
| |
| // Whether the current URL is starred. |
| bool is_starred_; |
| |
| bookmarks::BookmarkModel* bookmark_model_; |
| |
| // A list of observers notified when when the url starred changed. |
| base::ObserverList<BookmarkTabHelperObserver>::Unchecked observers_; |
| |
| // The BookmarkDrag is used to forward bookmark drag and drop events to |
| // extensions. |
| BookmarkDrag* bookmark_drag_; |
| |
| DISALLOW_COPY_AND_ASSIGN(BookmarkTabHelper); |
| }; |
| |
| #endif // CHROME_BROWSER_UI_BOOKMARKS_BOOKMARK_TAB_HELPER_H_ |