1 files changed, 110 insertions, 0 deletions
diff --git a/widget/gtk/MozContainerWayland.h b/widget/gtk/MozContainerWayland.h
new file mode 100644
index 0000000000..068c674256
--- /dev/null
+++ b/widget/gtk/MozContainerWayland.h
@@ -0,0 +1,110 @@
+/* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:expandtab:shiftwidth=2:tabstop=2:
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef __MOZ_CONTAINER_WAYLAND_H__
+#define __MOZ_CONTAINER_WAYLAND_H__
+
+#include <gtk/gtk.h>
+#include <functional>
+#include <vector>
+#include "mozilla/Mutex.h"
+#include "WindowSurface.h"
+
+/*
+ * MozContainer
+ *
+ * This class serves three purposes in the nsIWidget implementation.
+ *
+ *   - It provides objects to receive signals from GTK for events on native
+ *     windows.
+ *
+ *   - It provides GdkWindow to draw content on Wayland or when Gtk+ renders
+ *     client side decorations to mShell.
+ */
+
+/* Workaround for bug at wayland-util.h,
+ * present in wayland-devel < 1.12
+ */
+struct wl_surface;
+struct wl_subsurface;
+
+struct MozContainerWayland {
+  struct wl_surface* surface = nullptr;
+  struct wl_subsurface* subsurface = nullptr;
+  int subsurface_dx = 0;
+  int subsurface_dy = 0;
+  struct wl_egl_window* eglwindow = nullptr;
+  struct wl_callback* frame_callback_handler = nullptr;
+  struct wp_viewport* viewport = nullptr;
+  struct wp_fractional_scale_v1* fractional_scale = nullptr;
+  gboolean opaque_region_needs_updates = false;
+  int opaque_region_corner_radius = 0;
+  gboolean opaque_region_used = false;
+  gboolean ready_to_draw = false;
+  gboolean commit_to_parent = false;
+  gboolean before_first_size_alloc = false;
+  gboolean waiting_to_show = false;
+  // Zero means no fractional scale set.
+  double current_fractional_scale = 0.0;
+  int buffer_scale = 1;
+  std::vector<std::function<void(void)>> initial_draw_cbs;
+  // mozcontainer is used from Compositor and Rendering threads so we need to
+  // control access to mozcontainer where wayland internals are used directly.
+  mozilla::Mutex container_lock{"MozContainerWayland::container_lock"};
+};
+
+struct _MozContainer;
+struct _MozContainerClass;
+typedef struct _MozContainer MozContainer;
+typedef struct _MozContainerClass MozContainerClass;
+
+class MozContainerSurfaceLock {
+  MozContainer* mContainer;
+  struct wl_surface* mSurface;
+
+ public:
+  explicit MozContainerSurfaceLock(MozContainer* aContainer);
+  ~MozContainerSurfaceLock();
+  struct wl_surface* GetSurface();
+};
+
+void moz_container_wayland_map(GtkWidget*);
+gboolean moz_container_wayland_map_event(GtkWidget*, GdkEventAny*);
+void moz_container_wayland_size_allocate(GtkWidget*, GtkAllocation*);
+void moz_container_wayland_unmap(GtkWidget*);
+
+struct wl_egl_window* moz_container_wayland_get_egl_window(
+    MozContainer* container, double scale);
+
+gboolean moz_container_wayland_has_egl_window(MozContainer* container);
+bool moz_container_wayland_egl_window_set_size(MozContainer* container,
+                                               nsIntSize aSize, int aScale);
+void moz_container_wayland_set_scale_factor_locked(
+    const mozilla::MutexAutoLock& aProofOfLock, MozContainer* container,
+    int aScale);
+bool moz_container_wayland_size_matches_scale_factor_locked(
+    const mozilla::MutexAutoLock& aProofOfLock, MozContainer* container,
+    int aWidth, int aHeight);
+
+void moz_container_wayland_add_initial_draw_callback_locked(
+    MozContainer* container, const std::function<void(void)>& initial_draw_cb);
+void moz_container_wayland_add_or_fire_initial_draw_callback(
+    MozContainer* container, const std::function<void(void)>& initial_draw_cb);
+void moz_container_wayland_clear_initial_draw_callback(MozContainer* container);
+
+wl_surface* moz_gtk_widget_get_wl_surface(GtkWidget* aWidget);
+void moz_container_wayland_update_opaque_region(MozContainer* container,
+                                                int corner_radius);
+gboolean moz_container_wayland_can_draw(MozContainer* container);
+double moz_container_wayland_get_scale(MozContainer* container);
+double moz_container_wayland_get_fractional_scale(MozContainer* container);
+void moz_container_wayland_set_commit_to_parent(MozContainer* container);
+bool moz_container_wayland_is_commiting_to_parent(MozContainer* container);
+bool moz_container_wayland_is_waiting_to_show(MozContainer* container);
+void moz_container_wayland_clear_waiting_to_show_flag(MozContainer* container);
+
+#endif /* __MOZ_CONTAINER_WAYLAND_H__ */