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[gnome-control-center] mouse: Update from gnome-settings-daemon

commit be45283bb43e3734de6cc6773bc589b51d120c0f
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Apr 19 11:56:21 2012 +0100

    mouse: Update from gnome-settings-daemon

 panels/mouse/gsd-input-helper.c |  343 +++++++++++++++++++++++++++++++++++++--
 panels/mouse/gsd-input-helper.h |   48 +++++-
 2 files changed, 374 insertions(+), 17 deletions(-)
---
diff --git a/panels/mouse/gsd-input-helper.c b/panels/mouse/gsd-input-helper.c
index 5362701..95b1b38 100644
--- a/panels/mouse/gsd-input-helper.c
+++ b/panels/mouse/gsd-input-helper.c
@@ -25,22 +25,118 @@
 
 #include <sys/types.h>
 #include <X11/Xatom.h>
+#include <X11/extensions/XInput2.h>
 
 #include "gsd-input-helper.h"
 
 #define INPUT_DEVICES_SCHEMA "org.gnome.settings-daemon.peripherals.input-devices"
 #define KEY_HOTPLUG_COMMAND  "hotplug-command"
 
+typedef gboolean (* InfoIdentifyFunc) (XDeviceInfo *device_info);
+typedef gboolean (* DeviceIdentifyFunc) (XDevice *xdevice);
+
 gboolean
-supports_xinput_devices (void)
+device_set_property (XDevice        *xdevice,
+                     const char     *device_name,
+                     PropertyHelper *property)
+{
+        int rc, i;
+        Atom prop;
+        Atom realtype;
+        int realformat;
+        unsigned long nitems, bytes_after;
+        unsigned char *data;
+
+        prop = XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
+                            property->name, False);
+        if (!prop)
+                return FALSE;
+
+        gdk_error_trap_push ();
+
+        rc = XGetDeviceProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
+                                 xdevice, prop, 0, property->nitems, False,
+                                 AnyPropertyType, &realtype, &realformat, &nitems,
+                                 &bytes_after, &data);
+
+        if (rc != Success ||
+            realtype != property->type ||
+            realformat != property->format ||
+            nitems < property->nitems) {
+                gdk_error_trap_pop_ignored ();
+                g_warning ("Error reading property \"%s\" for \"%s\"", property->name, device_name);
+                return FALSE;
+        }
+
+        for (i = 0; i < nitems; i++) {
+                switch (property->format) {
+                        case 8:
+                                data[i] = property->data.c[i];
+                                break;
+                        case 32:
+                                ((long*)data)[i] = property->data.i[i];
+                                break;
+                }
+        }
+
+        XChangeDeviceProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
+                               xdevice, prop, realtype, realformat,
+                               PropModeReplace, data, nitems);
+
+        if (gdk_error_trap_pop ()) {
+                g_warning ("Error in setting \"%s\" for \"%s\"", property->name, device_name);
+                return FALSE;
+        }
+
+        return TRUE;
+}
+
+static gboolean
+supports_xinput_devices_with_opcode (int *opcode)
 {
         gint op_code, event, error;
+        gboolean retval;
+
+        retval = XQueryExtension (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
+				  "XInputExtension",
+				  &op_code,
+				  &event,
+				  &error);
+	if (opcode)
+		*opcode = op_code;
+
+	return retval;
+}
+
+gboolean
+supports_xinput_devices (void)
+{
+	return supports_xinput_devices_with_opcode (NULL);
+}
+
+gboolean
+supports_xinput2_devices (int *opcode)
+{
+        int major, minor;
 
-        return XQueryExtension (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
-                                "XInputExtension",
-                                &op_code,
-                                &event,
-                                &error);
+        if (supports_xinput_devices_with_opcode (opcode) == FALSE)
+                return FALSE;
+
+        gdk_error_trap_push ();
+
+        major = 2;
+        minor = 0;
+
+        if (XIQueryVersion (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), &major, &minor) != Success) {
+                gdk_error_trap_pop_ignored ();
+                return FALSE;
+        }
+        gdk_error_trap_pop_ignored ();
+
+        if ((major * 1000 + minor) < (2000))
+                return FALSE;
+
+        return TRUE;
 }
 
 gboolean
@@ -51,9 +147,8 @@ device_is_touchpad (XDevice *xdevice)
         unsigned long nitems, bytes_after;
         unsigned char *data;
 
-	/* FIXME
-	 * we don't check on the type being XI_TOUCHPAD, but having a "Synaptics Off"
-	 * property should be enough */
+        /* we don't check on the type being XI_TOUCHPAD here,
+         * but having a "Synaptics Off" property should be enough */
 
         prop = XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), "Synaptics Off", False);
         if (!prop)
@@ -73,7 +168,20 @@ device_is_touchpad (XDevice *xdevice)
 }
 
 gboolean
-touchpad_is_present (void)
+device_info_is_touchpad (XDeviceInfo *device_info)
+{
+        return (device_info->type == XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), XI_TOUCHPAD, False));
+}
+
+gboolean
+device_info_is_touchscreen (XDeviceInfo *device_info)
+{
+        return (device_info->type == XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), XI_TOUCHSCREEN, False));
+}
+
+static gboolean
+device_type_is_present (InfoIdentifyFunc info_func,
+                        DeviceIdentifyFunc device_func)
 {
         XDeviceInfo *device_info;
         gint n_devices;
@@ -92,12 +200,21 @@ touchpad_is_present (void)
         for (i = 0; i < n_devices; i++) {
                 XDevice *device;
 
+                /* Check with the device info first */
+                retval = (info_func) (&device_info[i]);
+                if (retval == FALSE)
+                        continue;
+
+                /* If we only have an info func, we're done checking */
+                if (device_func == NULL)
+                        break;
+
                 gdk_error_trap_push ();
                 device = XOpenDevice (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), device_info[i].id);
                 if (gdk_error_trap_pop () || (device == NULL))
                         continue;
 
-                retval = device_is_touchpad (device);
+                retval = (device_func) (device);
                 if (retval) {
                         XCloseDevice (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), device);
                         break;
@@ -110,6 +227,175 @@ touchpad_is_present (void)
         return retval;
 }
 
+gboolean
+touchscreen_is_present (void)
+{
+        return device_type_is_present (device_info_is_touchscreen,
+                                       NULL);
+}
+
+gboolean
+touchpad_is_present (void)
+{
+        return device_type_is_present (device_info_is_touchpad,
+                                       device_is_touchpad);
+}
+
+char *
+xdevice_get_device_node (int deviceid)
+{
+        Atom           prop;
+        Atom           act_type;
+        int            act_format;
+        unsigned long  nitems, bytes_after;
+        unsigned char *data;
+        char          *ret;
+
+        gdk_display_sync (gdk_display_get_default ());
+
+        prop = XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), "Device Node", False);
+        if (!prop)
+                return NULL;
+
+        gdk_error_trap_push ();
+
+        if (!XIGetProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
+                            deviceid, prop, 0, 1000, False,
+                            AnyPropertyType, &act_type, &act_format,
+                            &nitems, &bytes_after, &data) == Success) {
+                gdk_error_trap_pop_ignored ();
+                return NULL;
+        }
+        if (gdk_error_trap_pop ())
+                goto out;
+
+        if (nitems == 0)
+                goto out;
+
+        if (act_type != XA_STRING)
+                goto out;
+
+        /* Unknown string format */
+        if (act_format != 8)
+                goto out;
+
+        ret = g_strdup ((char *) data);
+
+        XFree (data);
+        return ret;
+
+out:
+        XFree (data);
+        return NULL;
+}
+
+#define TOOL_ID_FORMAT_SIZE 32
+static int
+get_id_for_index (guchar *data,
+		  guint   idx)
+{
+	guchar *ptr;
+	int id;
+
+	ptr = data;
+	ptr += TOOL_ID_FORMAT_SIZE / 8 * idx;
+
+	id = *((int32_t*)ptr);
+	id = id & 0xfffff;
+
+	return id;
+}
+
+
+#define STYLUS_DEVICE_ID        0x02
+#define ERASER_DEVICE_ID        0x0A
+
+int
+xdevice_get_last_tool_id (int  deviceid)
+{
+        Atom           prop;
+        Atom           act_type;
+        int            act_format;
+        unsigned long  nitems, bytes_after;
+        unsigned char *data;
+        int            id;
+
+        id = -1;
+
+        gdk_display_sync (gdk_display_get_default ());
+
+        prop = XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), WACOM_SERIAL_IDS_PROP, False);
+        if (!prop)
+                return -1;
+
+        gdk_error_trap_push ();
+
+        if (!XIGetProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
+                            deviceid, prop, 0, 1000, False,
+                            AnyPropertyType, &act_type, &act_format,
+                            &nitems, &bytes_after, &data) == Success) {
+                gdk_error_trap_pop_ignored ();
+                return -1;
+        }
+
+        if (gdk_error_trap_pop ())
+                goto out;
+
+	if (nitems != 4 && nitems != 5)
+		goto out;
+
+	if (act_type != XA_INTEGER)
+		goto out;
+
+	if (act_format != TOOL_ID_FORMAT_SIZE)
+		goto out;
+
+	/* item 0 = tablet ID
+	 * item 1 = old device serial number (== last tool in proximity)
+	 * item 2 = old hardware serial number (including tool ID)
+	 * item 3 = current serial number (0 if no tool in proximity)
+	 * item 4 = current tool ID (since Feb 2012)
+	 *
+	 * Get the current tool ID first, if available, then the old one */
+	id = 0x0;
+	if (nitems == 5)
+		id = get_id_for_index (data, 4);
+	if (id == 0x0)
+		id = get_id_for_index (data, 2);
+
+	/* That means that no tool was set down yet */
+	if (id == STYLUS_DEVICE_ID ||
+	    id == ERASER_DEVICE_ID)
+		return 0x0;
+
+out:
+        XFree (data);
+        return id;
+}
+
+gboolean
+set_device_enabled (int device_id,
+                    gboolean enabled)
+{
+        Atom prop;
+        guchar value;
+
+        prop = XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), "Device Enabled", False);
+        if (!prop)
+                return FALSE;
+
+        gdk_error_trap_push ();
+
+        value = enabled ? 1 : 0;
+        XIChangeProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
+                          device_id, prop, XA_INTEGER, 8, PropModeReplace, &value, 1);
+
+        if (gdk_error_trap_pop ())
+                return FALSE;
+
+        return TRUE;
+}
+
 static const char *
 custom_command_to_string (CustomCommand command)
 {
@@ -182,3 +468,38 @@ run_custom_command (GdkDevice              *device,
 
         return (exit_status == 0);
 }
+
+GList *
+get_disabled_devices (GdkDeviceManager *manager)
+{
+        XDeviceInfo *device_info;
+        gint n_devices;
+        guint i;
+        GList *ret;
+
+        ret = NULL;
+
+        device_info = XListInputDevices (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), &n_devices);
+        if (device_info == NULL)
+                return ret;
+
+        for (i = 0; i < n_devices; i++) {
+                GdkDevice *device;
+
+                /* Ignore core devices */
+                if (device_info[i].use == IsXKeyboard ||
+                    device_info[i].use == IsXPointer)
+                        continue;
+
+                /* Check whether the device is actually available */
+                device = gdk_x11_device_manager_lookup (manager, device_info[i].id);
+                if (device != NULL)
+                        continue;
+
+                ret = g_list_prepend (ret, GINT_TO_POINTER (device_info[i].id));
+        }
+
+        XFreeDeviceList (device_info);
+
+        return ret;
+}
diff --git a/panels/mouse/gsd-input-helper.h b/panels/mouse/gsd-input-helper.h
index a705f90..dfde51f 100644
--- a/panels/mouse/gsd-input-helper.h
+++ b/panels/mouse/gsd-input-helper.h
@@ -27,18 +27,54 @@ G_BEGIN_DECLS
 #include <X11/extensions/XInput.h>
 #include <X11/extensions/XIproto.h>
 
+#define WACOM_SERIAL_IDS_PROP "Wacom Serial IDs"
+
 typedef enum {
-	COMMAND_DEVICE_ADDED,
-	COMMAND_DEVICE_REMOVED,
-	COMMAND_DEVICE_PRESENT
+        COMMAND_DEVICE_ADDED,
+        COMMAND_DEVICE_REMOVED,
+        COMMAND_DEVICE_PRESENT
 } CustomCommand;
 
-gboolean  supports_xinput_devices (void);
-gboolean  device_is_touchpad      (XDevice                *xdevice);
+/* Generic property setting code. Fill up the struct property with the property
+ * data and pass it into device_set_property together with the device to be
+ * changed.  Note: doesn't cater for non-zero offsets yet, but we don't have
+ * any settings that require that.
+ */
+typedef struct {
+        const char *name;       /* property name */
+        gint nitems;            /* number of items in data */
+        gint format;            /* CARD8 or CARD32 sized-items */
+        gint type;              /* Atom representing data type */
+        union {
+                const gchar *c; /* 8 bit data */
+                const gint *i;  /* 32 bit data */
+        } data;
+} PropertyHelper;
+
+gboolean  supports_xinput_devices  (void);
+gboolean  supports_xinput2_devices (int *opcode);
+
+gboolean set_device_enabled       (int device_id,
+                                   gboolean enabled);
+
+gboolean  device_is_touchpad       (XDevice                *xdevice);
+
+gboolean  device_info_is_touchpad    (XDeviceInfo         *device_info);
+gboolean  device_info_is_touchscreen (XDeviceInfo         *device_info);
+
 gboolean  touchpad_is_present     (void);
+gboolean  touchscreen_is_present  (void);
+
+gboolean  device_set_property     (XDevice                *xdevice,
+                                   const char             *device_name,
+                                   PropertyHelper         *property);
 
 gboolean  run_custom_command      (GdkDevice              *device,
-			           CustomCommand           command);
+                                   CustomCommand           command);
+
+GList *   get_disabled_devices     (GdkDeviceManager       *manager);
+char *    xdevice_get_device_node  (int                     deviceid);
+int       xdevice_get_last_tool_id (int                     deviceid);
 
 G_END_DECLS
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