| // Copyright 2020 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_GTK_GTK_UI_PLATFORM_H_ |
| #define UI_GTK_GTK_UI_PLATFORM_H_ |
| |
| #include "base/callback_forward.h" |
| #include "ui/events/event.h" |
| #include "ui/gfx/native_widget_types.h" |
| #include "ui/gtk/gtk_compat.h" |
| |
| using GdkKeymap = struct _GdkKeymap; |
| using GtkWindow = struct _GtkWindow; |
| using GtkWidget = struct _GtkWidget; |
| using GdkWindow = struct _GdkWindow; |
| |
| namespace gtk { |
| |
| // GtkUiPlatform encapsulates platform-specific functionalities required by |
| // a Gtk-based LinuxUI implementation. |
| class GtkUiPlatform { |
| public: |
| virtual ~GtkUiPlatform() = default; |
| |
| // Called when the GtkUi instance initialization process finished. |widget| is |
| // a dummy window passed in for context. |
| virtual void OnInitialized(GtkWidget* widget) = 0; |
| |
| // Gets the GdkKeymap instance, which is used to translate KeyEvents into |
| // GdkEvents before filtering them through GtkIM API. |
| virtual GdkKeymap* GetGdkKeymap() = 0; |
| |
| // Gets the GDK key event state for a KeyEvent. |
| virtual GdkModifierType GetGdkKeyEventState( |
| const ui::KeyEvent& key_event) = 0; |
| |
| // Gets the GDK key event group for a KeyEvent. |
| virtual int GetGdkKeyEventGroup(const ui::KeyEvent& key_event) = 0; |
| |
| // Creates/Gets a GdkWindow out of a Aura window id. Caller owns the returned |
| // object. This function is meant to be used in GtkIM-based IME implementation |
| // and is supported only in X11 backend (both Aura and Ozone). |
| virtual GdkWindow* GetGdkWindow(gfx::AcceleratedWidget window_id) = 0; |
| |
| // Gtk dialog windows must be set transient for the browser window. This |
| // function abstracts away such functionality. |
| virtual bool SetGtkWidgetTransientFor(GtkWidget* widget, |
| gfx::AcceleratedWidget parent) = 0; |
| virtual void ClearTransientFor(gfx::AcceleratedWidget parent) = 0; |
| |
| // Presents |window|, doing all the necessary platform-specific operations |
| // needed, if any. |
| virtual void ShowGtkWindow(GtkWindow* window) = 0; |
| |
| // Reports whether InputMethodContextImplGtk is the preferred input method. |
| virtual bool PreferGtkIme() = 0; |
| }; |
| |
| } // namespace gtk |
| |
| #endif // UI_GTK_GTK_UI_PLATFORM_H_ |