// Copyright (c) 2014 GitHub, Inc. // Use of this source code is governed by the MIT license that can be // found in the LICENSE file. #ifndef SHELL_BROWSER_NATIVE_WINDOW_VIEWS_H_ #define SHELL_BROWSER_NATIVE_WINDOW_VIEWS_H_ #include "shell/browser/native_window.h" #include #include #include #include #include "ui/views/widget/widget_observer.h" #if defined(OS_WIN) #include "base/win/scoped_gdi_object.h" #include "shell/browser/ui/win/taskbar_host.h" #endif namespace views { class UnhandledKeyboardEventHandler; } namespace electron { class GlobalMenuBarX11; class RootView; class WindowStateWatcher; #if defined(USE_X11) class EventDisabler; #endif class NativeWindowViews : public NativeWindow, public views::WidgetObserver, public ui::EventHandler { public: NativeWindowViews(const mate::Dictionary& options, NativeWindow* parent); ~NativeWindowViews() override; // NativeWindow: void SetContentView(views::View* view) override; void Close() override; void CloseImmediately() override; void Focus(bool focus) override; bool IsFocused() override; void Show() override; void ShowInactive() override; void Hide() override; bool IsVisible() override; bool IsEnabled() override; void SetEnabled(bool enable) override; void Maximize() override; void Unmaximize() override; bool IsMaximized() override; void Minimize() override; void Restore() override; bool IsMinimized() override; void SetFullScreen(bool fullscreen) override; bool IsFullscreen() const override; void SetBounds(const gfx::Rect& bounds, bool animate) override; gfx::Rect GetBounds() override; gfx::Rect GetContentBounds() override; gfx::Size GetContentSize() override; gfx::Rect GetNormalBounds() override; void SetContentSizeConstraints( const extensions::SizeConstraints& size_constraints) override; void SetResizable(bool resizable) override; void MoveTop() override; bool IsResizable() override; void SetMovable(bool movable) override; bool IsMovable() override; void SetMinimizable(bool minimizable) override; bool IsMinimizable() override; void SetMaximizable(bool maximizable) override; bool IsMaximizable() override; void SetFullScreenable(bool fullscreenable) override; bool IsFullScreenable() override; void SetClosable(bool closable) override; bool IsClosable() override; void SetAlwaysOnTop(bool top, const std::string& level, int relativeLevel, std::string* error) override; bool IsAlwaysOnTop() override; void Center() override; void Invalidate() override; void SetTitle(const std::string& title) override; std::string GetTitle() override; void FlashFrame(bool flash) override; void SetSkipTaskbar(bool skip) override; void SetExcludedFromShownWindowsMenu(bool excluded) override; bool IsExcludedFromShownWindowsMenu() override; void SetSimpleFullScreen(bool simple_fullscreen) override; bool IsSimpleFullScreen() override; void SetKiosk(bool kiosk) override; bool IsKiosk() override; void SetBackgroundColor(SkColor color) override; void SetHasShadow(bool has_shadow) override; bool HasShadow() override; void SetOpacity(const double opacity) override; double GetOpacity() override; void SetIgnoreMouseEvents(bool ignore, bool forward) override; void SetContentProtection(bool enable) override; void SetFocusable(bool focusable) override; void SetMenu(AtomMenuModel* menu_model) override; void AddBrowserView(NativeBrowserView* browser_view) override; void RemoveBrowserView(NativeBrowserView* browser_view) override; void SetParentWindow(NativeWindow* parent) override; gfx::NativeView GetNativeView() const override; gfx::NativeWindow GetNativeWindow() const override; void SetOverlayIcon(const gfx::Image& overlay, const std::string& description) override; void SetProgressBar(double progress, const ProgressState state) override; void SetAutoHideMenuBar(bool auto_hide) override; bool IsMenuBarAutoHide() override; void SetMenuBarVisibility(bool visible) override; bool IsMenuBarVisible() override; void SetVisibleOnAllWorkspaces(bool visible, bool visibleOnFullScreen) override; bool IsVisibleOnAllWorkspaces() override; gfx::AcceleratedWidget GetAcceleratedWidget() const override; NativeWindowHandle GetNativeWindowHandle() const override; gfx::Rect ContentBoundsToWindowBounds(const gfx::Rect& bounds) const override; gfx::Rect WindowBoundsToContentBounds(const gfx::Rect& bounds) const override; void UpdateDraggableRegions(std::unique_ptr region); void IncrementChildModals(); void DecrementChildModals(); #if defined(OS_WIN) // Catch-all message handling and filtering. Called before // HWNDMessageHandler's built-in handling, which may pre-empt some // expectations in Views/Aura if messages are consumed. Returns true if the // message was consumed by the delegate and should not be processed further // by the HWNDMessageHandler. In this case, |result| is returned. |result| is // not modified otherwise. bool PreHandleMSG(UINT message, WPARAM w_param, LPARAM l_param, LRESULT* result); void SetIcon(HICON small_icon, HICON app_icon); #elif defined(USE_X11) void SetIcon(const gfx::ImageSkia& icon); #endif SkRegion* draggable_region() const { return draggable_region_.get(); } #if defined(OS_WIN) TaskbarHost& taskbar_host() { return taskbar_host_; } #endif private: // views::WidgetObserver: void OnWidgetActivationChanged(views::Widget* widget, bool active) override; void OnWidgetBoundsChanged(views::Widget* widget, const gfx::Rect& bounds) override; void OnWidgetDestroying(views::Widget* widget) override; // views::WidgetDelegate: void DeleteDelegate() override; views::View* GetInitiallyFocusedView() override; bool CanResize() const override; bool CanMaximize() const override; bool CanMinimize() const override; base::string16 GetWindowTitle() const override; views::View* GetContentsView() override; bool ShouldDescendIntoChildForEventHandling( gfx::NativeView child, const gfx::Point& location) override; views::ClientView* CreateClientView(views::Widget* widget) override; views::NonClientFrameView* CreateNonClientFrameView( views::Widget* widget) override; void OnWidgetMove() override; #if defined(OS_WIN) bool ExecuteWindowsCommand(int command_id) override; #endif #if defined(OS_WIN) void HandleSizeEvent(WPARAM w_param, LPARAM l_param); void SetForwardMouseMessages(bool forward); static LRESULT CALLBACK SubclassProc(HWND hwnd, UINT msg, WPARAM w_param, LPARAM l_param, UINT_PTR subclass_id, DWORD_PTR ref_data); static LRESULT CALLBACK MouseHookProc(int n_code, WPARAM w_param, LPARAM l_param); #endif // Enable/disable: bool ShouldBeEnabled(); void SetEnabledInternal(bool enabled); // NativeWindow: void HandleKeyboardEvent( content::WebContents*, const content::NativeWebKeyboardEvent& event) override; #if defined(OS_LINUX) // ui::EventHandler: void OnMouseEvent(ui::MouseEvent* event) override; #endif // Returns the restore state for the window. ui::WindowShowState GetRestoredState(); // Maintain window placement. void MoveBehindTaskBarIfNeeded(); std::unique_ptr root_view_; // The view should be focused by default. views::View* focused_view_ = nullptr; // The "resizable" flag on Linux is implemented by setting size constraints, // we need to make sure size constraints are restored when window becomes // resizable again. This is also used on Windows, to keep taskbar resize // events from resizing the window. extensions::SizeConstraints old_size_constraints_; #if defined(USE_X11) std::unique_ptr global_menu_bar_; // Handles window state events. std::unique_ptr window_state_watcher_; // To disable the mouse events. std::unique_ptr event_disabler_; #endif #if defined(OS_WIN) ui::WindowShowState last_window_state_; gfx::Rect last_normal_placement_bounds_; // There's an issue with restore on Windows, that sometimes causes the Window // to receive the wrong size (#2498). To circumvent that, we keep tabs on the // size of the window while in the normal state (not maximized, minimized or // fullscreen), so we restore it correctly. gfx::Rect last_normal_bounds_; gfx::Rect last_normal_bounds_before_move_; // last_normal_bounds_ may or may not require update on WM_MOVE. When a // window is maximized, it is moved (WM_MOVE) to maximum size first and then // sized (WM_SIZE). In this case, last_normal_bounds_ should not update. We // keep last_normal_bounds_candidate_ as a candidate which will become valid // last_normal_bounds_ if the moves are consecutive with no WM_SIZE event in // between. gfx::Rect last_normal_bounds_candidate_; bool consecutive_moves_; // In charge of running taskbar related APIs. TaskbarHost taskbar_host_; // Memoized version of a11y check bool checked_for_a11y_support_ = false; // Whether to show the WS_THICKFRAME style. bool thick_frame_ = true; // The bounds of window before maximize/fullscreen. gfx::Rect restore_bounds_; // The icons of window and taskbar. base::win::ScopedHICON window_icon_; base::win::ScopedHICON app_icon_; // The set of windows currently forwarding mouse messages. static std::set forwarding_windows_; static HHOOK mouse_hook_; bool forwarding_mouse_messages_ = false; HWND legacy_window_ = NULL; bool layered_ = false; // Set to true if the window is always on top and behind the task bar. bool behind_task_bar_ = false; #endif // Handles unhandled keyboard messages coming back from the renderer process. std::unique_ptr keyboard_event_handler_; // For custom drag, the whole window is non-draggable and the draggable region // has to been explicitly provided. std::unique_ptr draggable_region_; // used in custom drag. // Whether the window should be enabled based on user calls to SetEnabled() bool is_enabled_ = true; // How many modal children this window has; // used to determine enabled state unsigned int num_modal_children_ = 0; bool use_content_size_ = false; bool movable_ = true; bool resizable_ = true; bool maximizable_ = true; bool minimizable_ = true; bool fullscreenable_ = true; std::string title_; gfx::Size widget_size_; double opacity_ = 1.0; DISALLOW_COPY_AND_ASSIGN(NativeWindowViews); }; } // namespace electron #endif // SHELL_BROWSER_NATIVE_WINDOW_VIEWS_H_