326 lines
11 KiB
C++
326 lines
11 KiB
C++
// Copyright (c) 2014 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#ifndef SHELL_BROWSER_NATIVE_WINDOW_VIEWS_H_
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#define SHELL_BROWSER_NATIVE_WINDOW_VIEWS_H_
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#include "shell/browser/native_window.h"
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#include <memory>
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#include <set>
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#include <string>
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#include <vector>
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#include "shell/common/api/api.mojom.h"
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#include "ui/views/widget/widget_observer.h"
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#if defined(OS_WIN)
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#include "base/win/scoped_gdi_object.h"
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#include "shell/browser/ui/win/taskbar_host.h"
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#endif
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namespace views {
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class UnhandledKeyboardEventHandler;
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}
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namespace electron {
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class GlobalMenuBarX11;
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class RootView;
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class WindowStateWatcher;
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#if defined(USE_X11)
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class EventDisabler;
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#endif
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#if defined(OS_WIN)
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gfx::Rect ScreenToDIPRect(HWND hwnd, const gfx::Rect& pixel_bounds);
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#endif
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class NativeWindowViews : public NativeWindow,
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public views::WidgetObserver,
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public ui::EventHandler {
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public:
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NativeWindowViews(const gin_helper::Dictionary& options,
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NativeWindow* parent);
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~NativeWindowViews() override;
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// NativeWindow:
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void SetContentView(views::View* view) override;
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void Close() override;
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void CloseImmediately() override;
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void Focus(bool focus) override;
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bool IsFocused() override;
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void Show() override;
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void ShowInactive() override;
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void Hide() override;
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bool IsVisible() override;
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bool IsEnabled() override;
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void SetEnabled(bool enable) override;
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void Maximize() override;
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void Unmaximize() override;
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bool IsMaximized() override;
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void Minimize() override;
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void Restore() override;
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bool IsMinimized() override;
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void SetFullScreen(bool fullscreen) override;
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bool IsFullscreen() const override;
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void SetBounds(const gfx::Rect& bounds, bool animate) override;
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gfx::Rect GetBounds() override;
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gfx::Rect GetContentBounds() override;
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gfx::Size GetContentSize() override;
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gfx::Rect GetNormalBounds() override;
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SkColor GetBackgroundColor() override;
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void SetContentSizeConstraints(
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const extensions::SizeConstraints& size_constraints) override;
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void SetResizable(bool resizable) override;
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bool MoveAbove(const std::string& sourceId) override;
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void MoveTop() override;
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bool IsResizable() override;
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void SetAspectRatio(double aspect_ratio,
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const gfx::Size& extra_size) override;
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void SetMovable(bool movable) override;
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bool IsMovable() override;
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void SetMinimizable(bool minimizable) override;
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bool IsMinimizable() override;
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void SetMaximizable(bool maximizable) override;
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bool IsMaximizable() override;
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void SetFullScreenable(bool fullscreenable) override;
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bool IsFullScreenable() override;
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void SetClosable(bool closable) override;
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bool IsClosable() override;
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void SetAlwaysOnTop(ui::ZOrderLevel z_order,
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const std::string& level,
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int relativeLevel) override;
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ui::ZOrderLevel GetZOrderLevel() override;
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void Center() override;
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void Invalidate() override;
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void SetTitle(const std::string& title) override;
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std::string GetTitle() override;
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void FlashFrame(bool flash) override;
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void SetSkipTaskbar(bool skip) override;
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void SetExcludedFromShownWindowsMenu(bool excluded) override;
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bool IsExcludedFromShownWindowsMenu() override;
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void SetSimpleFullScreen(bool simple_fullscreen) override;
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bool IsSimpleFullScreen() override;
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void SetKiosk(bool kiosk) override;
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bool IsKiosk() override;
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bool IsTabletMode() const override;
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void SetBackgroundColor(SkColor color) override;
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void SetHasShadow(bool has_shadow) override;
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bool HasShadow() override;
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void SetOpacity(const double opacity) override;
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double GetOpacity() override;
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void SetIgnoreMouseEvents(bool ignore, bool forward) override;
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void SetContentProtection(bool enable) override;
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void SetFocusable(bool focusable) override;
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bool IsFocusable() override;
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void SetMenu(ElectronMenuModel* menu_model) override;
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void AddBrowserView(NativeBrowserView* browser_view) override;
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void RemoveBrowserView(NativeBrowserView* browser_view) override;
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void SetTopBrowserView(NativeBrowserView* browser_view) override;
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void SetParentWindow(NativeWindow* parent) override;
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gfx::NativeView GetNativeView() const override;
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gfx::NativeWindow GetNativeWindow() const override;
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void SetOverlayIcon(const gfx::Image& overlay,
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const std::string& description) override;
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void SetProgressBar(double progress, const ProgressState state) override;
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void SetAutoHideMenuBar(bool auto_hide) override;
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bool IsMenuBarAutoHide() override;
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void SetMenuBarVisibility(bool visible) override;
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bool IsMenuBarVisible() override;
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void SetVisibleOnAllWorkspaces(bool visible,
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bool visibleOnFullScreen,
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bool skipTransformProcessType) override;
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bool IsVisibleOnAllWorkspaces() override;
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void SetGTKDarkThemeEnabled(bool use_dark_theme) override;
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content::DesktopMediaID GetDesktopMediaID() const override;
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gfx::AcceleratedWidget GetAcceleratedWidget() const override;
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NativeWindowHandle GetNativeWindowHandle() const override;
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gfx::Rect ContentBoundsToWindowBounds(const gfx::Rect& bounds) const override;
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gfx::Rect WindowBoundsToContentBounds(const gfx::Rect& bounds) const override;
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void UpdateDraggableRegions(
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const std::vector<mojom::DraggableRegionPtr>& regions);
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void IncrementChildModals();
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void DecrementChildModals();
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#if defined(OS_WIN)
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// Catch-all message handling and filtering. Called before
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// HWNDMessageHandler's built-in handling, which may pre-empt some
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// expectations in Views/Aura if messages are consumed. Returns true if the
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// message was consumed by the delegate and should not be processed further
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// by the HWNDMessageHandler. In this case, |result| is returned. |result| is
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// not modified otherwise.
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bool PreHandleMSG(UINT message,
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WPARAM w_param,
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LPARAM l_param,
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LRESULT* result);
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void SetIcon(HICON small_icon, HICON app_icon);
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#elif defined(OS_LINUX)
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void SetIcon(const gfx::ImageSkia& icon);
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#endif
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SkRegion* draggable_region() const { return draggable_region_.get(); }
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#if defined(OS_WIN)
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TaskbarHost& taskbar_host() { return taskbar_host_; }
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#endif
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private:
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// views::WidgetObserver:
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void OnWidgetActivationChanged(views::Widget* widget, bool active) override;
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void OnWidgetBoundsChanged(views::Widget* widget,
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const gfx::Rect& bounds) override;
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void OnWidgetDestroying(views::Widget* widget) override;
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void OnWidgetDestroyed(views::Widget* widget) override;
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// views::WidgetDelegate:
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views::View* GetInitiallyFocusedView() override;
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bool CanMaximize() const override;
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bool CanMinimize() const override;
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std::u16string GetWindowTitle() const override;
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views::View* GetContentsView() override;
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bool ShouldDescendIntoChildForEventHandling(
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gfx::NativeView child,
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const gfx::Point& location) override;
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views::ClientView* CreateClientView(views::Widget* widget) override;
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std::unique_ptr<views::NonClientFrameView> CreateNonClientFrameView(
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views::Widget* widget) override;
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void OnWidgetMove() override;
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#if defined(OS_WIN)
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bool ExecuteWindowsCommand(int command_id) override;
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#endif
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#if defined(OS_WIN)
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void HandleSizeEvent(WPARAM w_param, LPARAM l_param);
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void SetForwardMouseMessages(bool forward);
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static LRESULT CALLBACK SubclassProc(HWND hwnd,
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UINT msg,
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WPARAM w_param,
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LPARAM l_param,
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UINT_PTR subclass_id,
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DWORD_PTR ref_data);
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static LRESULT CALLBACK MouseHookProc(int n_code,
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WPARAM w_param,
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LPARAM l_param);
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#endif
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// Enable/disable:
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bool ShouldBeEnabled();
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void SetEnabledInternal(bool enabled);
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// NativeWindow:
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void HandleKeyboardEvent(
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content::WebContents*,
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const content::NativeWebKeyboardEvent& event) override;
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// ui::EventHandler:
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void OnMouseEvent(ui::MouseEvent* event) override;
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// Returns the restore state for the window.
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ui::WindowShowState GetRestoredState();
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// Maintain window placement.
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void MoveBehindTaskBarIfNeeded();
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std::unique_ptr<RootView> root_view_;
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// The view should be focused by default.
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views::View* focused_view_ = nullptr;
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// The "resizable" flag on Linux is implemented by setting size constraints,
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// we need to make sure size constraints are restored when window becomes
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// resizable again. This is also used on Windows, to keep taskbar resize
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// events from resizing the window.
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extensions::SizeConstraints old_size_constraints_;
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#if defined(USE_X11)
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std::unique_ptr<GlobalMenuBarX11> global_menu_bar_;
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// Handles window state events.
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std::unique_ptr<WindowStateWatcher> window_state_watcher_;
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// To disable the mouse events.
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std::unique_ptr<EventDisabler> event_disabler_;
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#endif
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#if defined(OS_WIN)
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ui::WindowShowState last_window_state_;
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gfx::Rect last_normal_placement_bounds_;
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// In charge of running taskbar related APIs.
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TaskbarHost taskbar_host_;
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// Memoized version of a11y check
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bool checked_for_a11y_support_ = false;
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// Whether to show the WS_THICKFRAME style.
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bool thick_frame_ = true;
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// The bounds of window before maximize/fullscreen.
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gfx::Rect restore_bounds_;
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// The icons of window and taskbar.
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base::win::ScopedHICON window_icon_;
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base::win::ScopedHICON app_icon_;
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// The set of windows currently forwarding mouse messages.
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static std::set<NativeWindowViews*> forwarding_windows_;
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static HHOOK mouse_hook_;
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bool forwarding_mouse_messages_ = false;
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HWND legacy_window_ = NULL;
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bool layered_ = false;
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// Set to true if the window is always on top and behind the task bar.
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bool behind_task_bar_ = false;
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// Whether we want to set window placement without side effect.
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bool is_setting_window_placement_ = false;
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// Whether the window is currently being resized.
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bool is_resizing_ = false;
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// Whether the window is currently being moved.
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bool is_moving_ = false;
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#endif
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// Handles unhandled keyboard messages coming back from the renderer process.
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std::unique_ptr<views::UnhandledKeyboardEventHandler> keyboard_event_handler_;
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// For custom drag, the whole window is non-draggable and the draggable region
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// has to been explicitly provided.
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std::unique_ptr<SkRegion> draggable_region_; // used in custom drag.
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// Whether the window should be enabled based on user calls to SetEnabled()
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bool is_enabled_ = true;
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// How many modal children this window has;
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// used to determine enabled state
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unsigned int num_modal_children_ = 0;
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bool use_content_size_ = false;
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bool movable_ = true;
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bool resizable_ = true;
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bool maximizable_ = true;
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bool minimizable_ = true;
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bool fullscreenable_ = true;
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std::string title_;
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gfx::Size widget_size_;
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double opacity_ = 1.0;
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bool widget_destroyed_ = false;
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DISALLOW_COPY_AND_ASSIGN(NativeWindowViews);
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};
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} // namespace electron
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#endif // SHELL_BROWSER_NATIVE_WINDOW_VIEWS_H_
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