[mutter/wip/tablet-protocol-v2: 48/65] backends: Add function to retrieve the action mapped to an stylus button

[Carlos Garnacho <carlosg src gnome org>]

commit 3c0b4d9c29e43e66ac97e03cdb54a83da8e2b6c1
Author: Carlos Garnacho <carlosg gnome org>
Date:   Wed Jun 22 15:48:07 2016 +0200

    backends: Add function to retrieve the action mapped to an stylus button
    
    This function will be useful for the wayland implementation, because buttons
    are mapped at the time of sending those through the wire.
    As x11/wayland implementations differ here, this function will be useful for
    the wayland implementation, as the action is handled lat

 src/backends/meta-input-settings-private.h |    4 ++
 src/backends/meta-input-settings.c         |   63 ++++++++++++++++++++++++++++
 2 files changed, 67 insertions(+), 0 deletions(-)
---
diff --git a/src/backends/meta-input-settings-private.h b/src/backends/meta-input-settings-private.h
index d8b8976..8131086 100644
--- a/src/backends/meta-input-settings-private.h
+++ b/src/backends/meta-input-settings-private.h
@@ -106,6 +106,10 @@ MetaInputSettings * meta_input_settings_get (void);
 GDesktopTabletMapping meta_input_settings_get_tablet_mapping (MetaInputSettings  *settings,
                                                               ClutterInputDevice *device);
 
+GDesktopStylusButtonAction meta_input_settings_get_stylus_button_action (MetaInputSettings      *settings,
+                                                                         ClutterInputDeviceTool *tool,
+                                                                         ClutterInputDevice     
*current_device,
+                                                                         guint                   button);
 #ifdef HAVE_LIBWACOM
 WacomDevice * meta_input_settings_get_tablet_wacom_device (MetaInputSettings *settings,
                                                            ClutterInputDevice *device);
diff --git a/src/backends/meta-input-settings.c b/src/backends/meta-input-settings.c
index af46bd9..049d1b8 100644
--- a/src/backends/meta-input-settings.c
+++ b/src/backends/meta-input-settings.c
@@ -40,6 +40,8 @@
 
 #include <meta/util.h>
 
+static GQuark quark_tool_settings = 0;
+
 typedef struct _MetaInputSettingsPrivate MetaInputSettingsPrivate;
 typedef struct _DeviceMappingInfo DeviceMappingInfo;
 
@@ -910,6 +912,41 @@ lookup_device_settings (ClutterInputDevice *device)
   return settings;
 }
 
+static GSettings *
+lookup_tool_settings (ClutterInputDeviceTool *tool,
+                      ClutterInputDevice     *device)
+{
+  GSettings *settings;
+  guint64 serial;
+  gchar *path;
+
+  settings = g_object_get_qdata (G_OBJECT (tool), quark_tool_settings);
+
+  if (!settings)
+    {
+      serial = clutter_input_device_tool_get_serial (tool);
+
+      if (serial == 0)
+        {
+          path = g_strdup_printf ("/org/gnome/desktop/peripherals/stylus/default-%s:%s/",
+                                  clutter_input_device_get_vendor_id (device),
+                                  clutter_input_device_get_product_id (device));
+        }
+      else
+        {
+          path = g_strdup_printf ("/org/gnome/desktop/peripherals/stylus/%lx/", serial);
+        }
+
+      settings = g_settings_new_with_path ("org.gnome.desktop.peripherals.tablet.stylus",
+                                           path);
+      g_object_set_qdata_full (G_OBJECT (tool), quark_tool_settings, settings,
+                               (GDestroyNotify) g_object_unref);
+      g_free (path);
+    }
+
+  return settings;
+}
+
 static void
 monitors_changed_cb (MetaMonitorManager *monitor_manager,
                      MetaInputSettings  *input_settings)
@@ -1067,6 +1104,9 @@ meta_input_settings_class_init (MetaInputSettingsClass *klass)
 
   object_class->dispose = meta_input_settings_dispose;
   object_class->constructed = meta_input_settings_constructed;
+
+  quark_tool_settings =
+    g_quark_from_static_string ("meta-input-settings-tool-settings");
 }
 
 static void
@@ -1162,6 +1202,29 @@ meta_input_settings_get_tablet_mapping (MetaInputSettings  *settings,
   return g_settings_get_enum (info->settings, "mapping");
 }
 
+GDesktopStylusButtonAction
+meta_input_settings_get_stylus_button_action (MetaInputSettings      *input_settings,
+                                              ClutterInputDeviceTool *tool,
+                                              ClutterInputDevice     *current_tablet,
+                                              guint                   button)
+{
+  GSettings *settings;
+
+  g_return_val_if_fail (META_IS_INPUT_SETTINGS (input_settings),
+                        G_DESKTOP_STYLUS_BUTTON_ACTION_DEFAULT);
+  g_return_val_if_fail (CLUTTER_IS_INPUT_DEVICE_TOOL (tool),
+                        G_DESKTOP_STYLUS_BUTTON_ACTION_DEFAULT);
+
+  settings = lookup_tool_settings (tool, current_tablet);
+
+  if (button == 2)
+    return g_settings_get_enum (settings, "button-action");
+  else if (button == 3)
+    return g_settings_get_enum (settings, "secondary-button-action");
+  else
+    return G_DESKTOP_STYLUS_BUTTON_ACTION_DEFAULT;
+}
+
 #ifdef HAVE_LIBWACOM
 WacomDevice *
 meta_input_settings_get_tablet_wacom_device (MetaInputSettings *settings,