Merge the xi2-for-master branch

1 files changed, 624 insertions, 0 deletions

diff --git a/gdk/x11/gdkdevice-xi.c b/gdk/x11/gdkdevice-xi.c
new file mode 100644
index 0000000000..b82ff18002
--- /dev/null
+++ b/gdk/x11/gdkdevice-xi.c
@@ -0,0 +1,624 @@
+/* GDK - The GIMP Drawing Kit
+ * Copyright (C) 2009 Carlos Garnacho <carlosg@gnome.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "config.h"
+
+#include <gdk/gdkwindow.h>
+#include "gdkdeviceprivate.h"
+#include "gdkdevice-xi.h"
+#include "gdkprivate-x11.h"
+#include "gdkintl.h"
+#include "gdkx.h"
+
+#define MAX_DEVICE_CLASSES 13
+
+static GQuark quark_window_input_info = 0;
+
+typedef struct
+{
+  gdouble root_x;
+  gdouble root_y;
+} GdkWindowInputInfo;
+
+static void gdk_device_xi_constructed  (GObject *object);
+static void gdk_device_xi_dispose      (GObject *object);
+
+static void gdk_device_xi_set_property (GObject      *object,
+                                        guint         prop_id,
+                                        const GValue *value,
+                                        GParamSpec   *pspec);
+static void gdk_device_xi_get_property (GObject      *object,
+                                        guint         prop_id,
+                                        GValue       *value,
+                                        GParamSpec   *pspec);
+
+static gboolean gdk_device_xi_get_history (GdkDevice      *device,
+                                           GdkWindow      *window,
+                                           guint32         start,
+                                           guint32         stop,
+                                           GdkTimeCoord ***events,
+                                           guint          *n_events);
+
+static void gdk_device_xi_get_state       (GdkDevice       *device,
+                                           GdkWindow       *window,
+                                           gdouble         *axes,
+                                           GdkModifierType *mask);
+static void gdk_device_xi_set_window_cursor (GdkDevice *device,
+                                             GdkWindow *window,
+                                             GdkCursor *cursor);
+static void gdk_device_xi_warp              (GdkDevice *device,
+                                             GdkScreen *screen,
+                                             gint       x,
+                                             gint       y);
+static gboolean gdk_device_xi_query_state   (GdkDevice        *device,
+                                             GdkWindow        *window,
+                                             GdkWindow       **root_window,
+                                             GdkWindow       **child_window,
+                                             gint             *root_x,
+                                             gint             *root_y,
+                                             gint             *win_x,
+                                             gint             *win_y,
+                                             GdkModifierType  *mask);
+static GdkGrabStatus gdk_device_xi_grab     (GdkDevice    *device,
+                                             GdkWindow    *window,
+                                             gboolean      owner_events,
+                                             GdkEventMask  event_mask,
+                                             GdkWindow    *confine_to,
+                                             GdkCursor    *cursor,
+                                             guint32       time_);
+static void          gdk_device_xi_ungrab   (GdkDevice    *device,
+                                             guint32       time_);
+
+static GdkWindow* gdk_device_xi_window_at_position (GdkDevice       *device,
+                                                    gint            *win_x,
+                                                    gint            *win_y,
+                                                    GdkModifierType *mask,
+                                                    gboolean         get_toplevel);
+
+static void gdk_device_xi_select_window_events (GdkDevice    *device,
+                                                GdkWindow    *window,
+                                                GdkEventMask  mask);
+
+
+G_DEFINE_TYPE (GdkDeviceXI, gdk_device_xi, GDK_TYPE_DEVICE)
+
+enum {
+  PROP_0,
+  PROP_DEVICE_ID
+};
+
+static void
+gdk_device_xi_class_init (GdkDeviceXIClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  GdkDeviceClass *device_class = GDK_DEVICE_CLASS (klass);
+
+  quark_window_input_info = g_quark_from_static_string ("gdk-window-input-info");
+
+  object_class->constructed = gdk_device_xi_constructed;
+  object_class->set_property = gdk_device_xi_set_property;
+  object_class->get_property = gdk_device_xi_get_property;
+  object_class->dispose = gdk_device_xi_dispose;
+
+  device_class->get_history = gdk_device_xi_get_history;
+  device_class->get_state = gdk_device_xi_get_state;
+  device_class->set_window_cursor = gdk_device_xi_set_window_cursor;
+  device_class->warp = gdk_device_xi_warp;
+  device_class->query_state = gdk_device_xi_query_state;
+  device_class->grab = gdk_device_xi_grab;
+  device_class->ungrab = gdk_device_xi_ungrab;
+  device_class->window_at_position = gdk_device_xi_window_at_position;
+  device_class->select_window_events = gdk_device_xi_select_window_events;
+
+  g_object_class_install_property (object_class,
+				   PROP_DEVICE_ID,
+				   g_param_spec_int ("device-id",
+                                                     P_("Device ID"),
+                                                     P_("Device ID"),
+                                                     0, G_MAXINT, 0,
+                                                     G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
+}
+
+static void
+gdk_device_xi_init (GdkDeviceXI *device)
+{
+}
+
+static void
+gdk_device_xi_constructed (GObject *object)
+{
+  GdkDeviceXI *device;
+  GdkDisplay *display;
+
+  device = GDK_DEVICE_XI (object);
+  display = gdk_device_get_display (GDK_DEVICE (object));
+
+  gdk_error_trap_push ();
+  device->xdevice = XOpenDevice (GDK_DISPLAY_XDISPLAY (display),
+                                 device->device_id);
+
+  if (gdk_error_trap_pop ())
+    g_warning ("Device %s can't be opened", GDK_DEVICE (device)->name);
+
+  if (G_OBJECT_CLASS (gdk_device_xi_parent_class)->constructed)
+    G_OBJECT_CLASS (gdk_device_xi_parent_class)->constructed (object);
+}
+
+static void
+gdk_device_xi_set_property (GObject      *object,
+                            guint         prop_id,
+                            const GValue *value,
+                            GParamSpec   *pspec)
+{
+  GdkDeviceXI *device = GDK_DEVICE_XI (object);
+
+  switch (prop_id)
+    {
+    case PROP_DEVICE_ID:
+      device->device_id = g_value_get_int (value);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void
+gdk_device_xi_get_property (GObject    *object,
+                            guint       prop_id,
+                            GValue     *value,
+                            GParamSpec *pspec)
+{
+  GdkDeviceXI *device = GDK_DEVICE_XI (object);
+
+  switch (prop_id)
+    {
+    case PROP_DEVICE_ID:
+      g_value_set_int (value, device->device_id);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void
+gdk_device_xi_dispose (GObject *object)
+{
+  GdkDeviceXI *device_xi;
+  GdkDisplay *display;
+
+  device_xi = GDK_DEVICE_XI (object);
+  display = gdk_device_get_display (GDK_DEVICE (device_xi));
+
+  if (device_xi->xdevice)
+    {
+      XCloseDevice (GDK_DISPLAY_XDISPLAY (display), device_xi->xdevice);
+      device_xi->xdevice = NULL;
+    }
+
+  if (device_xi->axis_data)
+    {
+      g_free (device_xi->axis_data);
+      device_xi->axis_data = NULL;
+    }
+
+  G_OBJECT_CLASS (gdk_device_xi_parent_class)->dispose (object);
+}
+
+static gboolean
+gdk_device_xi_get_history (GdkDevice      *device,
+                           GdkWindow      *window,
+                           guint32         start,
+                           guint32         stop,
+                           GdkTimeCoord ***events,
+                           guint          *n_events)
+{
+  GdkTimeCoord **coords;
+  XDeviceTimeCoord *device_coords;
+  GdkWindow *impl_window;
+  GdkDeviceXI *device_xi;
+  gint n_events_return;
+  gint mode_return;
+  gint axis_count_return;
+  gint i;
+
+  device_xi = GDK_DEVICE_XI (device);
+  impl_window = _gdk_window_get_impl_window (window);
+
+  device_coords = XGetDeviceMotionEvents (GDK_WINDOW_XDISPLAY (impl_window),
+					  device_xi->xdevice,
+					  start, stop,
+					  &n_events_return,
+                                          &mode_return,
+					  &axis_count_return);
+
+  if (!device_coords)
+    return FALSE;
+
+  *n_events = (guint) n_events_return;
+  coords = _gdk_device_allocate_history (device, *n_events);
+
+  for (i = 0; i < *n_events; i++)
+    {
+      coords[i]->time = device_coords[i].time;
+      gdk_device_xi_translate_axes (device, window,
+                                    device_coords[i].data,
+                                    coords[i]->axes,
+                                    NULL, NULL);
+    }
+
+  XFreeDeviceMotionEvents (device_coords);
+
+  *events = coords;
+
+  return TRUE;
+}
+
+static void
+gdk_device_xi_get_state (GdkDevice       *device,
+                         GdkWindow       *window,
+                         gdouble         *axes,
+                         GdkModifierType *mask)
+{
+  GdkDeviceXI *device_xi;
+  XDeviceState *state;
+  XInputClass *input_class;
+  gint i;
+
+  if (mask)
+    gdk_window_get_pointer (window, NULL, NULL, mask);
+
+  device_xi = GDK_DEVICE_XI (device);
+  state = XQueryDeviceState (GDK_WINDOW_XDISPLAY (window),
+                             device_xi->xdevice);
+  input_class = state->data;
+
+  for (i = 0; i < state->num_classes; i++)
+    {
+      switch (input_class->class)
+        {
+        case ValuatorClass:
+          if (axes)
+            gdk_device_xi_translate_axes (device, window,
+                                          ((XValuatorState *) input_class)->valuators,
+                                          axes, NULL, NULL);
+          break;
+
+        case ButtonClass:
+          if (mask)
+            {
+              *mask &= 0xFF;
+              if (((XButtonState *)input_class)->num_buttons > 0)
+                *mask |= ((XButtonState *)input_class)->buttons[0] << 7;
+              /* GDK_BUTTON1_MASK = 1 << 8, and button n is stored
+               * in bit 1<<(n%8) in byte n/8. n = 1,2,... */
+            }
+          break;
+        }
+
+      input_class = (XInputClass *)(((char *)input_class)+input_class->length);
+    }
+
+  XFreeDeviceState (state);
+}
+
+static void
+gdk_device_xi_set_window_cursor (GdkDevice *device,
+                                 GdkWindow *window,
+                                 GdkCursor *cursor)
+{
+}
+
+static void
+gdk_device_xi_warp (GdkDevice *device,
+                    GdkScreen *screen,
+                    gint       x,
+                    gint       y)
+{
+}
+
+static void
+find_events (GdkDevice    *device,
+             GdkEventMask  mask,
+             XEventClass  *classes,
+             int          *num_classes)
+{
+  GdkDeviceXI *device_xi;
+  XEventClass class;
+  gint i;
+
+  device_xi = GDK_DEVICE_XI (device);
+  i = 0;
+
+  if (mask & GDK_BUTTON_PRESS_MASK)
+    {
+      DeviceButtonPress (device_xi->xdevice, device_xi->button_press_type, class);
+      if (class != 0)
+        classes[i++] = class;
+
+      DeviceButtonPressGrab (device_xi->xdevice, 0, class);
+      if (class != 0)
+        classes[i++] = class;
+    }
+
+  if (mask & GDK_BUTTON_RELEASE_MASK)
+    {
+      DeviceButtonRelease (device_xi->xdevice, device_xi->button_release_type, class);
+      if (class != 0)
+        classes[i++] = class;
+    }
+
+  if (mask & (GDK_POINTER_MOTION_MASK |
+              GDK_BUTTON1_MOTION_MASK | GDK_BUTTON2_MOTION_MASK |
+              GDK_BUTTON3_MOTION_MASK | GDK_BUTTON_MOTION_MASK))
+    {
+      /* Make sure device->motionnotify_type is set */
+      DeviceMotionNotify (device_xi->xdevice, device_xi->motion_notify_type, class);
+      if (class != 0)
+	  classes[i++] = class;
+      DeviceStateNotify (device_xi->xdevice, device_xi->state_notify_type, class);
+      if (class != 0)
+	  classes[i++] = class;
+    }
+
+  if (mask & GDK_KEY_PRESS_MASK)
+    {
+      DeviceKeyPress (device_xi->xdevice, device_xi->key_press_type, class);
+      if (class != 0)
+        classes[i++] = class;
+    }
+
+  if (mask & GDK_KEY_RELEASE_MASK)
+    {
+      DeviceKeyRelease (device_xi->xdevice, device_xi->key_release_type, class);
+      if (class != 0)
+        classes[i++] = class;
+    }
+
+  if (mask & GDK_PROXIMITY_IN_MASK)
+    {
+      ProximityIn (device_xi->xdevice, device_xi->proximity_in_type, class);
+      if (class != 0)
+        classes[i++] = class;
+    }
+
+  if (mask & GDK_PROXIMITY_OUT_MASK)
+    {
+      ProximityOut (device_xi->xdevice, device_xi->proximity_out_type, class);
+      if (class != 0)
+        classes[i++] = class;
+    }
+
+  *num_classes = i;
+}
+
+static gboolean
+gdk_device_xi_query_state (GdkDevice        *device,
+                           GdkWindow        *window,
+                           GdkWindow       **root_window,
+                           GdkWindow       **child_window,
+                           gint             *root_x,
+                           gint             *root_y,
+                           gint             *win_x,
+                           gint             *win_y,
+                           GdkModifierType  *mask)
+{
+  return FALSE;
+}
+
+static GdkGrabStatus
+gdk_device_xi_grab (GdkDevice    *device,
+                    GdkWindow    *window,
+                    gboolean      owner_events,
+                    GdkEventMask  event_mask,
+                    GdkWindow    *confine_to,
+                    GdkCursor    *cursor,
+                    guint32       time_)
+{
+  XEventClass event_classes[MAX_DEVICE_CLASSES];
+  gint status, num_classes;
+  GdkDeviceXI *device_xi;
+
+  device_xi = GDK_DEVICE_XI (device);
+  find_events (device, event_mask, event_classes, &num_classes);
+
+  status = XGrabDevice (GDK_WINDOW_XDISPLAY (window),
+                        device_xi->xdevice,
+                        GDK_WINDOW_XWINDOW (window),
+                        owner_events,
+                        num_classes, event_classes,
+                        GrabModeAsync, GrabModeAsync,
+                        time_);
+
+  return _gdk_x11_convert_grab_status (status);
+}
+
+static void
+gdk_device_xi_ungrab (GdkDevice *device,
+                      guint32    time_)
+{
+  GdkDisplay *display;
+  GdkDeviceXI *device_xi;
+
+  device_xi = GDK_DEVICE_XI (device);
+  display = gdk_device_get_display (device);
+
+  XUngrabDevice (GDK_DISPLAY_XDISPLAY (device),
+                 device_xi->xdevice,
+                 time_);
+}
+
+static GdkWindow*
+gdk_device_xi_window_at_position (GdkDevice       *device,
+                                  gint            *win_x,
+                                  gint            *win_y,
+                                  GdkModifierType *mask,
+                                  gboolean         get_toplevel)
+{
+  return NULL;
+}
+static void
+gdk_device_xi_select_window_events (GdkDevice    *device,
+                                    GdkWindow    *window,
+                                    GdkEventMask  event_mask)
+{
+  XEventClass event_classes[MAX_DEVICE_CLASSES];
+  GdkDeviceXI *device_xi;
+  gint num_classes;
+
+  event_mask |= (GDK_PROXIMITY_IN_MASK |
+                 GDK_PROXIMITY_OUT_MASK);
+
+  device_xi = GDK_DEVICE_XI (device);
+  find_events (device, event_mask, event_classes, &num_classes);
+
+  XSelectExtensionEvent (GDK_WINDOW_XDISPLAY (window),
+			 GDK_WINDOW_XWINDOW (window),
+			 event_classes, num_classes);
+
+  if (event_mask)
+    {
+      GdkWindowInputInfo *info;
+
+      info = g_new0 (GdkWindowInputInfo, 1);
+      g_object_set_qdata_full (G_OBJECT (window),
+                               quark_window_input_info,
+                               info,
+                               (GDestroyNotify) g_free);
+    }
+  else
+    g_object_set_qdata (G_OBJECT (window),
+                        quark_window_input_info,
+                        NULL);
+}
+
+void
+gdk_device_xi_update_window_info (GdkWindow *window)
+{
+  GdkWindowInputInfo *info;
+  gint root_x, root_y;
+
+  info = g_object_get_qdata (G_OBJECT (window),
+                             quark_window_input_info);
+
+  if (!info)
+    return;
+
+  gdk_window_get_origin (window, &root_x, &root_y);
+  info->root_x = (gdouble) root_x;
+  info->root_y = (gdouble) root_y;
+}
+
+static gboolean
+gdk_device_xi_get_window_info (GdkWindow *window,
+                               gdouble   *root_x,
+                               gdouble   *root_y)
+{
+  GdkWindowInputInfo *info;
+
+  info = g_object_get_qdata (G_OBJECT (window),
+                             quark_window_input_info);
+
+  if (!info)
+    return FALSE;
+
+  *root_x = info->root_x;
+  *root_y = info->root_y;
+
+  return TRUE;
+}
+
+void
+gdk_device_xi_update_axes (GdkDevice *device,
+                           gint       axes_count,
+                           gint       first_axis,
+                           gint      *axis_data)
+{
+  GdkDeviceXI *device_xi;
+  int i;
+
+  device_xi = GDK_DEVICE_XI (device);
+  g_return_if_fail (first_axis >= 0 && first_axis + axes_count <= device->num_axes);
+
+  if (!device_xi->axis_data)
+    device_xi->axis_data = g_new0 (gint, device->num_axes);
+
+  for (i = 0; i < axes_count; i++)
+    device_xi->axis_data[first_axis + i] = axis_data[i];
+}
+
+void
+gdk_device_xi_translate_axes (GdkDevice *device,
+                              GdkWindow *window,
+                              gint      *axis_data,
+                              gdouble   *axes,
+                              gdouble   *x,
+                              gdouble   *y)
+{
+  GdkDeviceXI *device_xi;
+  GdkWindow *impl_window;
+  gdouble root_x, root_y;
+  gdouble temp_x, temp_y;
+  gint i;
+
+  device_xi = GDK_DEVICE_XI (device);
+  impl_window = _gdk_window_get_impl_window (window);
+  temp_x = temp_y = 0;
+
+  if (!gdk_device_xi_get_window_info (impl_window, &root_x, &root_y))
+    return;
+
+  for (i = 0; i < device->num_axes; i++)
+    {
+      GdkAxisUse use;
+
+      use = _gdk_device_get_axis_use (device, i);
+
+      switch (use)
+        {
+        case GDK_AXIS_X:
+        case GDK_AXIS_Y:
+          if (device->mode == GDK_MODE_WINDOW)
+            _gdk_device_translate_window_coord (device, window,
+                                                i, axis_data[i],
+                                                &axes[i]);
+          else
+            _gdk_device_translate_screen_coord (device, window,
+                                                root_x, root_y,
+                                                i, axis_data[i],
+                                                &axes[i]);
+          if (use == GDK_AXIS_X)
+            temp_x = axes[i];
+          else if (use == GDK_AXIS_Y)
+            temp_y = axes[i];
+
+          break;
+        default:
+          _gdk_device_translate_axis (device, i, axis_data[i], &axes[i]);
+          break;
+        }
+    }
+
+  if (x)
+    *x = temp_x;
+
+  if (y)
+    *y = temp_y;
+}