From 30c99286eda160f95fd7f17ba4e82e2e368fc6eb Mon Sep 17 00:00:00 2001
From: Oz N Tiram <oz.tiram@gmail.com>
Date: Sat, 18 Jun 2016 16:23:32 +0200
Subject: Some more fixes for gtk+3

 * remove deprecated calls to:
  - gdk_keyboard_grab
  - gdk_pointer_grab
  - gdk_keyboard_ungrab
  - gdk_pointer_ungrab

GTK+3 Replace on_preview_expose_event

 This method used many deprecated calles.

 This method was replaced with on_preview_draw,

 code taken directly from current gnome-screenshot
---
 mate-screenshot/src/screenshot-dialog.c | 35 ++++++++++++++---------
 mate-screenshot/src/screenshot-utils.c  | 50 ++++++++++++++++++++++++++++++++-
 2 files changed, 70 insertions(+), 15 deletions(-)

diff --git a/mate-screenshot/src/screenshot-dialog.c b/mate-screenshot/src/screenshot-dialog.c
index 5f5fd098..6e71ebf8 100644
--- a/mate-screenshot/src/screenshot-dialog.c
+++ b/mate-screenshot/src/screenshot-dialog.c
@@ -64,20 +64,32 @@ on_toplevel_key_press_event (GtkWidget *widget,
   return FALSE;
 }
 
-static void
 #if GTK_CHECK_VERSION (3, 0, 0)
-on_preview_draw (GtkWidget *drawing_area, cairo_t *cr, gpointer data)
+static void
+on_preview_draw (GtkWidget      *drawing_area,
+                 cairo_t        *cr,
+                 gpointer        data)
+{
+  ScreenshotDialog *dialog = data;
+  GtkStyleContext *context;
+
+  context = gtk_widget_get_style_context (drawing_area);
+  gtk_style_context_save (context);
+
+  gtk_style_context_set_state (context, gtk_widget_get_state_flags (drawing_area));
+  gtk_render_icon (context, cr, dialog->preview_image, 0, 0);
+
+  gtk_style_context_restore (context);
+}
+
 #else
+static void
 on_preview_expose_event (GtkWidget *drawing_area, GdkEventExpose *event, gpointer data)
-#endif
 {
   ScreenshotDialog *dialog = data;
   GdkPixbuf *pixbuf = NULL;
   gboolean free_pixbuf = FALSE;
-#if !GTK_CHECK_VERSION (3, 0, 0)
   cairo_t *cr;
-#endif
-
   /* Stolen from GtkImage.  I really should just make the drawing area an
    * image some day */
   if (gtk_widget_get_state (drawing_area) != GTK_STATE_NORMAL)
@@ -101,24 +113,19 @@ on_preview_expose_event (GtkWidget *drawing_area, GdkEventExpose *event, gpointe
     }
   else
     {
-      pixbuf = g_object_ref (dialog->preview_image);
+     pixbuf = g_object_ref (dialog->preview_image);
     }
-  
-#if !GTK_CHECK_VERSION (3, 0, 0)
+ 
   cr = gdk_cairo_create (gtk_widget_get_window (drawing_area));
   gdk_cairo_region (cr, event->region);
   cairo_clip (cr);
-#endif
-
   gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
   cairo_paint (cr);
-
-#if !GTK_CHECK_VERSION (3, 0, 0)
   cairo_destroy (cr);
-#endif
 
   g_object_unref (pixbuf);
 }
+#endif
 
 static gboolean
 on_preview_button_press_event (GtkWidget      *drawing_area,
diff --git a/mate-screenshot/src/screenshot-utils.c b/mate-screenshot/src/screenshot-utils.c
index 9d5d8af7..0efd43b8 100644
--- a/mate-screenshot/src/screenshot-utils.c
+++ b/mate-screenshot/src/screenshot-utils.c
@@ -500,6 +500,11 @@ void
 screenshot_select_area_async (SelectAreaCallback callback)
 {
   GdkCursor               *cursor;
+#if GTK_CHECK_VERSION (3, 0, 0)
+  GdkDeviceManager *manager;
+  GdkDevice *pointer, *keyboard;
+  GdkGrabStatus res;
+#endif
   select_area_filter_data  data;
   GdkRectangle *rectangle;
   CallbackData *cb_data;
@@ -521,6 +526,39 @@ screenshot_select_area_async (SelectAreaCallback callback)
 
   cursor = gdk_cursor_new (GDK_CROSSHAIR);
 
+#if GTK_CHECK_VERSION (3, 0, 0)
+  manager = gdk_display_get_device_manager (gdk_display_get_default ());
+  pointer = gdk_device_manager_get_client_pointer (manager);
+  keyboard = gdk_device_get_associated_device (pointer);
+
+
+  res = gdk_device_grab (pointer, gtk_widget_get_window (data.window),
+                         GDK_OWNERSHIP_NONE, FALSE,
+                         GDK_POINTER_MOTION_MASK |
+                         GDK_BUTTON_PRESS_MASK | 
+                         GDK_BUTTON_RELEASE_MASK,
+                         cursor, GDK_CURRENT_TIME);
+
+  if (res != GDK_GRAB_SUCCESS)
+    {
+      g_object_unref (cursor);
+      goto out;
+    }
+
+  res = gdk_device_grab (keyboard, gtk_widget_get_window (data.window),
+                         GDK_OWNERSHIP_NONE, FALSE,
+                         GDK_KEY_PRESS_MASK |
+                         GDK_KEY_RELEASE_MASK,
+                         NULL, GDK_CURRENT_TIME);
+  if (res != GDK_GRAB_SUCCESS)
+    {
+      gdk_device_ungrab (pointer, GDK_CURRENT_TIME);
+      g_object_unref (cursor);
+      goto out;
+    }
+
+#else
+  
   if (gdk_pointer_grab (gtk_widget_get_window (data.window), FALSE,
                         GDK_POINTER_MOTION_MASK|GDK_BUTTON_PRESS_MASK|GDK_BUTTON_RELEASE_MASK,
                         NULL, cursor,
@@ -537,14 +575,24 @@ screenshot_select_area_async (SelectAreaCallback callback)
       goto out;
     }
 
+#endif
+
   gtk_main ();
 
+#if GTK_CHECK_VERSION (3, 0, 0)
+
+  gdk_device_ungrab (keyboard, GDK_CURRENT_TIME);
+  gdk_device_ungrab (pointer, GDK_CURRENT_TIME);
+
+#else
+
   gdk_keyboard_ungrab (GDK_CURRENT_TIME);
   gdk_pointer_ungrab (GDK_CURRENT_TIME);
 
+#endif  
+
   gtk_widget_destroy (data.window);
   gdk_cursor_unref (cursor);
-
   gdk_flush ();
 
  out:
-- 
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