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- // 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;
- };
- } // namespace gtk
- #endif // UI_GTK_GTK_UI_PLATFORM_H_
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