| // 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 UI_APP_LIST_VIEWS_CONTENTS_VIEW_H_ |
| #define UI_APP_LIST_VIEWS_CONTENTS_VIEW_H_ |
| |
| #include <map> |
| |
| #include "base/basictypes.h" |
| #include "base/compiler_specific.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "ui/app_list/app_list_export.h" |
| #include "ui/app_list/pagination_model.h" |
| #include "ui/app_list/pagination_model_observer.h" |
| #include "ui/views/view.h" |
| |
| namespace views { |
| class ViewModel; |
| } |
| |
| namespace app_list { |
| |
| class AppsGridView; |
| class ApplicationDragAndDropHost; |
| class AppListFolderItem; |
| class AppListMainView; |
| class AppListModel; |
| class AppListViewDelegate; |
| class AppsContainerView; |
| class ContentsSwitcherView; |
| class PaginationModel; |
| class SearchResultListView; |
| class StartPageView; |
| |
| // A view to manage launcher pages within the Launcher (eg. start page, apps |
| // grid view, search results). There can be any number of launcher pages, only |
| // one of which can be active at a given time. ContentsView provides the user |
| // interface for switching between launcher pages, and animates the transition |
| // between them. |
| class APP_LIST_EXPORT ContentsView : public views::View, |
| public PaginationModelObserver { |
| public: |
| // Values of this enum denote special launcher pages that require hard-coding. |
| // Launcher pages are not required to have a NamedPage enum value. |
| enum NamedPage { |
| NAMED_PAGE_APPS, |
| NAMED_PAGE_SEARCH_RESULTS, |
| NAMED_PAGE_START, |
| }; |
| |
| ContentsView(AppListMainView* app_list_main_view); |
| virtual ~ContentsView(); |
| |
| // Initialize the named (special) pages of the launcher. In the experimental |
| // launcher, should be called after set_contents_switcher_view(), or switcher |
| // buttons will not be created. |
| void InitNamedPages(AppListModel* model, AppListViewDelegate* view_delegate); |
| |
| // The app list gets closed and drag and drop operations need to be cancelled. |
| void CancelDrag(); |
| |
| // If |drag_and_drop| is not NULL it will be called upon drag and drop |
| // operations outside the application list. |
| void SetDragAndDropHostOfCurrentAppList( |
| ApplicationDragAndDropHost* drag_and_drop_host); |
| |
| void set_contents_switcher_view( |
| ContentsSwitcherView* contents_switcher_view) { |
| contents_switcher_view_ = contents_switcher_view; |
| } |
| |
| void ShowSearchResults(bool show); |
| void ShowFolderContent(AppListFolderItem* folder); |
| bool IsShowingSearchResults() const; |
| |
| // Sets the active launcher page and animates the pages into place. |
| void SetActivePage(int page_index); |
| |
| // The index of the currently active launcher page. |
| int GetActivePageIndex() const; |
| |
| // True if |named_page| is the current active laucher page. |
| bool IsNamedPageActive(NamedPage named_page) const; |
| |
| // Gets the index of a launcher page in |view_model_|, by NamedPage. |
| int GetPageIndexForNamedPage(NamedPage named_page) const; |
| |
| int NumLauncherPages() const; |
| |
| void Prerender(); |
| |
| AppsContainerView* apps_container_view() { return apps_container_view_; } |
| StartPageView* start_page_view() { return start_page_view_; } |
| SearchResultListView* search_results_view() { return search_results_view_; } |
| views::View* GetPageView(int index); |
| |
| // Adds a blank launcher page. For use in tests only. |
| void AddBlankPageForTesting(); |
| |
| // Overridden from views::View: |
| virtual gfx::Size GetPreferredSize() const OVERRIDE; |
| virtual void Layout() OVERRIDE; |
| virtual bool OnKeyPressed(const ui::KeyEvent& event) OVERRIDE; |
| virtual bool OnMouseWheel(const ui::MouseWheelEvent& event) OVERRIDE; |
| |
| // Overridden from PaginationModelObserver: |
| virtual void TotalPagesChanged() OVERRIDE; |
| virtual void SelectedPageChanged(int old_selected, int new_selected) OVERRIDE; |
| virtual void TransitionStarted() OVERRIDE; |
| virtual void TransitionChanged() OVERRIDE; |
| |
| private: |
| // Sets the active launcher page, accounting for whether the change is for |
| // search results. |
| void SetActivePageInternal(int page_index, bool show_search_results); |
| |
| // Invoked when active view is changed. |
| void ActivePageChanged(bool show_search_results); |
| |
| // Calculates and sets the bounds for the subviews. If there is currently an |
| // animation, this positions the views as appropriate for the current frame. |
| void UpdatePageBounds(); |
| |
| // Adds |view| as a new page to the end of the list of launcher pages. The |
| // view is inserted as a child of the ContentsView, and a button with |
| // |resource_id| is added to the ContentsSwitcherView. There is no name |
| // associated with the page. Returns the index of the new page. |
| int AddLauncherPage(views::View* view, int resource_id); |
| |
| // Adds |view| as a new page to the end of the list of launcher pages. The |
| // view is inserted as a child of the ContentsView, and a button with |
| // |resource_id| is added to the ContentsSwitcherView. The page is associated |
| // with the name |named_page|. Returns the index of the new page. |
| int AddLauncherPage(views::View* view, int resource_id, NamedPage named_page); |
| |
| // Gets the PaginationModel owned by the AppsGridView. |
| // Note: This is different to |pagination_model_|, which manages top-level |
| // launcher-page pagination. |
| PaginationModel* GetAppsPaginationModel(); |
| |
| // Overridden from ui::EventHandler: |
| virtual void OnGestureEvent(ui::GestureEvent* event) OVERRIDE; |
| virtual void OnScrollEvent(ui::ScrollEvent* event) OVERRIDE; |
| |
| // Special sub views of the ContentsView. All owned by the views hierarchy. |
| AppsContainerView* apps_container_view_; |
| SearchResultListView* search_results_view_; |
| StartPageView* start_page_view_; |
| |
| AppListMainView* app_list_main_view_; // Parent view, owns this. |
| // Sibling view, owned by |app_list_main_view_|. |
| ContentsSwitcherView* contents_switcher_view_; |
| |
| scoped_ptr<views::ViewModel> view_model_; |
| // Maps NamedPage onto |view_model_| indices. |
| std::map<NamedPage, int> named_page_to_view_; |
| |
| // Manages the pagination for the launcher pages. |
| PaginationModel pagination_model_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ContentsView); |
| }; |
| |
| } // namespace app_list |
| |
| #endif // UI_APP_LIST_VIEWS_CONTENTS_VIEW_H_ |