wayland: use the inhibit shortcuts dialog

Plug the new MetaInhbitShortcutsDialog to the relevant Wayland protocol
implementation.

Also, remember the last user choice for a given surface to avoid asking
continuously the same question.

https://bugzilla.gnome.org/show_bug.cgi?id=783342

4 files changed, 206 insertions, 2 deletions

diff --git a/src/wayland/meta-wayland-inhibit-shortcuts-dialog.c b/src/wayland/meta-wayland-inhibit-shortcuts-dialog.c
new file mode 100644
index 000000000..6eb2208e7
--- /dev/null
+++ b/src/wayland/meta-wayland-inhibit-shortcuts-dialog.c
@@ -0,0 +1,169 @@
+/*
+ * Copyright (C) 2017 Red Hat
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+
+#include "wayland/meta-window-wayland.h"
+#include "wayland/meta-wayland.h"
+#include "core/window-private.h"
+#include "compositor/compositor-private.h"
+#include "meta-wayland-inhibit-shortcuts-dialog.h"
+
+static GQuark quark_surface_inhibit_shortcuts_data = 0;
+
+typedef struct _InhibitShortcutsData
+{
+  MetaWaylandSurface                *surface;
+  MetaWaylandSeat                   *seat;
+  MetaInhibitShortcutsDialog        *dialog;
+  MetaInhibitShortcutsDialogResponse last_response;
+} InhibitShortcutsData;
+
+static InhibitShortcutsData *
+surface_inhibit_shortcuts_data_get (MetaWaylandSurface *surface)
+{
+  return g_object_get_qdata (G_OBJECT (surface),
+                             quark_surface_inhibit_shortcuts_data);
+}
+
+static void
+surface_inhibit_shortcuts_data_set (MetaWaylandSurface   *surface,
+                                    InhibitShortcutsData *data)
+{
+  g_object_set_qdata (G_OBJECT (surface),
+                      quark_surface_inhibit_shortcuts_data,
+                      data);
+}
+
+static void
+surface_inhibit_shortcuts_data_free (MetaWaylandSurface   *surface,
+                                     InhibitShortcutsData *data)
+{
+  meta_inhibit_shortcuts_dialog_hide (data->dialog);
+
+  g_free (data);
+}
+
+static void
+surface_inhibit_shortcuts_dialog_free (gpointer  ptr,
+                                       GClosure *closure)
+{
+  InhibitShortcutsData *data = ptr;
+
+  meta_wayland_surface_hide_inhibit_shortcuts_dialog (data->surface);
+}
+
+static void
+inhibit_shortcuts_dialog_response_apply (InhibitShortcutsData *data)
+{
+  if (data->last_response == META_INHIBIT_SHORTCUTS_DIALOG_RESPONSE_ALLOW)
+    meta_wayland_surface_inhibit_shortcuts (data->surface, data->seat);
+  else if (meta_wayland_surface_is_shortcuts_inhibited (data->surface, data->seat))
+    meta_wayland_surface_restore_shortcuts (data->surface, data->seat);
+}
+
+static void
+inhibit_shortcuts_dialog_response_cb (MetaInhibitShortcutsDialog        *dialog,
+                                      MetaInhibitShortcutsDialogResponse response,
+                                      InhibitShortcutsData              *data)
+{
+  data->last_response = response;
+  inhibit_shortcuts_dialog_response_apply (data);
+  meta_wayland_surface_hide_inhibit_shortcuts_dialog (data->surface);
+}
+
+static InhibitShortcutsData *
+meta_wayland_surface_ensure_inhibit_shortcuts_dialog (MetaWaylandSurface *surface,
+                                                      MetaWaylandSeat    *seat)
+{
+  InhibitShortcutsData *data;
+  MetaWindow *window;
+  MetaDisplay *display;
+  MetaInhibitShortcutsDialog *dialog;
+
+  data = surface_inhibit_shortcuts_data_get (surface);
+  if (data == NULL)
+    {
+      data = g_new (InhibitShortcutsData, 1);
+      surface_inhibit_shortcuts_data_set (surface, data);
+    }
+  else if (data->dialog != NULL)
+     /* There is a dialog already created, nothing to do */
+    return data;
+
+  window = meta_wayland_surface_get_toplevel_window (surface);
+  display = window->display;
+  dialog =
+    meta_compositor_create_inhibit_shortcuts_dialog (display->compositor,
+                                                     window);
+
+  data->surface = surface;
+  data->seat = seat;
+  data->dialog = dialog;
+
+  g_signal_connect_data (dialog, "response",
+                         G_CALLBACK (inhibit_shortcuts_dialog_response_cb),
+                         data, surface_inhibit_shortcuts_dialog_free,
+                         0);
+
+  g_signal_connect (surface, "destroy",
+                    G_CALLBACK (surface_inhibit_shortcuts_data_free),
+                    data);
+
+  return data;
+}
+
+void
+meta_wayland_surface_show_inhibit_shortcuts_dialog (MetaWaylandSurface *surface,
+                                                    MetaWaylandSeat    *seat)
+{
+  InhibitShortcutsData *data;
+
+  g_return_if_fail (META_IS_WAYLAND_SURFACE (surface));
+
+  data = surface_inhibit_shortcuts_data_get (surface);
+  if (data != NULL)
+    {
+      /* The dialog was shown before for this surface but is not showing
+       * anymore, reuse the last user response.
+       */
+      inhibit_shortcuts_dialog_response_apply (data);
+      return;
+    }
+
+  data = meta_wayland_surface_ensure_inhibit_shortcuts_dialog (surface, seat);
+  meta_inhibit_shortcuts_dialog_show (data->dialog);
+}
+
+void
+meta_wayland_surface_hide_inhibit_shortcuts_dialog (MetaWaylandSurface *surface)
+{
+  InhibitShortcutsData *data;
+
+  g_return_if_fail (META_IS_WAYLAND_SURFACE (surface));
+
+  /* The closure notify will take care of actually hiding the dialog */
+  data = surface_inhibit_shortcuts_data_get (surface);
+  g_signal_handlers_disconnect_by_data (surface, data);
+}
+
+void
+meta_wayland_surface_inhibit_shortcuts_dialog_init (void)
+{
+  quark_surface_inhibit_shortcuts_data =
+    g_quark_from_static_string ("-meta-wayland-surface-inhibit-shortcuts-data");
+}
diff --git a/src/wayland/meta-wayland-inhibit-shortcuts-dialog.h b/src/wayland/meta-wayland-inhibit-shortcuts-dialog.h
new file mode 100644
index 000000000..bd3fc42b0
--- /dev/null
+++ b/src/wayland/meta-wayland-inhibit-shortcuts-dialog.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2017 Red Hat
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef META_WAYLAND_INHIBIT_SHORTCUTS_DIALOG_H
+#define META_WAYLAND_INHIBIT_SHORTCUTS_DIALOG_H
+
+#include "meta-wayland-private.h"
+
+void     meta_wayland_surface_show_inhibit_shortcuts_dialog (MetaWaylandSurface *surface,
+                                                             MetaWaylandSeat    *seat);
+
+void     meta_wayland_surface_hide_inhibit_shortcuts_dialog (MetaWaylandSurface *surface);
+
+void     meta_wayland_surface_inhibit_shortcuts_dialog_init (void);
+
+#endif /* META_WAYLAND_INHIBIT_SHORTCUTS_DIALOG_H */
diff --git a/src/wayland/meta-wayland-inhibit-shortcuts.c b/src/wayland/meta-wayland-inhibit-shortcuts.c
index e4b72643d..cd078917d 100644
--- a/src/wayland/meta-wayland-inhibit-shortcuts.c
+++ b/src/wayland/meta-wayland-inhibit-shortcuts.c
@@ -28,6 +28,7 @@
 #include "wayland/meta-wayland-private.h"
 #include "wayland/meta-wayland-versions.h"
 #include "wayland/meta-wayland-inhibit-shortcuts.h"
+#include "wayland/meta-wayland-inhibit-shortcuts-dialog.h"
 
 struct _MetaWaylandKeyboardShotscutsInhibit
 {
@@ -48,6 +49,8 @@ zwp_keyboard_shortcuts_inhibit_destroy (struct wl_client   *client,
   shortcut_inhibit = wl_resource_get_user_data (resource);
   if (shortcut_inhibit->surface)
     {
+      meta_wayland_surface_hide_inhibit_shortcuts_dialog (shortcut_inhibit->surface);
+
       g_signal_handler_disconnect (shortcut_inhibit->surface,
                                    shortcut_inhibit->surface_destroyed_handler);
 
@@ -135,13 +138,12 @@ zwp_keyboard_shortcuts_inhibit_manager_inhibit_shortcuts (struct wl_client   *cl
     g_signal_connect (surface, "shortcuts-restored",
                       G_CALLBACK (shortcuts_restored_cb),
                       shortcut_inhibit);
-
   shortcut_inhibit->surface_destroyed_handler =
     g_signal_connect (surface, "destroy",
                       G_CALLBACK (surface_destroyed_cb),
                       shortcut_inhibit);
 
-  meta_wayland_surface_inhibit_shortcuts (surface, seat);
+  meta_wayland_surface_show_inhibit_shortcuts_dialog (surface, seat);
 
   wl_resource_set_implementation (keyboard_shortcuts_inhibit_resource,
                                   &meta_keyboard_shortcuts_inhibit_interface,
diff --git a/src/wayland/meta-wayland.c b/src/wayland/meta-wayland.c
index e25739100..414c7fb5b 100644
--- a/src/wayland/meta-wayland.c
+++ b/src/wayland/meta-wayland.c
@@ -43,6 +43,7 @@
 #include "meta-wayland-xdg-foreign.h"
 #include "meta-wayland-dma-buf.h"
 #include "meta-wayland-inhibit-shortcuts.h"
+#include "meta-wayland-inhibit-shortcuts-dialog.h"
 
 static MetaWaylandCompositor _meta_wayland_compositor;
 static char *_display_name_override;
@@ -359,6 +360,7 @@ meta_wayland_init (void)
   meta_wayland_xdg_foreign_init (compositor);
   meta_wayland_dma_buf_init (compositor);
   meta_wayland_keyboard_shortcuts_inhibit_init (compositor);
+  meta_wayland_surface_inhibit_shortcuts_dialog_init ();
 
   if (!meta_xwayland_start (&compositor->xwayland_manager, compositor->wayland_display))
     g_error ("Failed to start X Wayland");