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gdk/x11: Extract GdkDeviceTool tool ID from "Wacom Serial IDs" property

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This property contains 5 integers, of which the last 2 respectively
contain the tool serial number and tool ID. We were only extracting the
first so far, but GdkDeviceTool also has API getters for the latter,
which remained 0.

https://bugzilla.gnome.org/show_bug.cgi?id=786400
This commit is contained in:
Carlos Garnacho 2017-08-17 14:07:12 +02:00
parent c3622b2454
commit 136f43e329
1 changed files with 18 additions and 12 deletions
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30
gdk/x11/gdkdevicemanager-xi2.c
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@ -980,12 +980,13 @@ handle_device_changed (GdkX11DeviceManagerXI2 *device_manager,
_gdk_device_xi2_reset_scroll_valuators (GDK_X11_DEVICE_XI2 (source_device));
}
static guint
device_get_tool_serial (GdkDevice *device)
static gboolean
device_get_tool_serial_and_id (GdkDevice *device,
guint *serial_id,
guint *id)
{
GdkDisplay *display;
gulong nitems, bytes_after;
guint serial_id = 0;
guint32 *data;
int rc, format;
Atom type;
@ -997,19 +998,24 @@ device_get_tool_serial (GdkDevice *device)
rc = XIGetProperty (GDK_DISPLAY_XDISPLAY (display),
gdk_x11_device_get_id (device),
gdk_x11_get_xatom_by_name_for_display (display, "Wacom Serial IDs"),
0, 4, False, XA_INTEGER, &type, &format, &nitems, &bytes_after,
0, 5, False, XA_INTEGER, &type, &format, &nitems, &bytes_after,
(guchar **) &data);
gdk_x11_display_error_trap_pop_ignored (display);
if (rc != Success)
return 0;
return FALSE;
if (type == XA_INTEGER && format == 32 && nitems >= 4)
serial_id = data[3];
if (type == XA_INTEGER && format == 32)
{
if (nitems >= 4)
*serial_id = data[3];
if (nitems >= 5)
*id = data[4];
}
XFree (data);
return serial_id;
return TRUE;
}
static void
@ -1024,18 +1030,18 @@ handle_property_change (GdkX11DeviceManagerXI2 *device_manager,
if (ev->property == gdk_x11_get_xatom_by_name ("Wacom Serial IDs"))
{
GdkDeviceTool *tool = NULL;
guint serial_id;
guint serial_id = 0, tool_id = 0;
GdkSeat *seat;
if (ev->what != XIPropertyDeleted)
if (ev->what != XIPropertyDeleted &&
device_get_tool_serial_and_id (device, &serial_id, &tool_id))
{
serial_id = device_get_tool_serial (device);
seat = gdk_device_get_seat (device);
tool = gdk_seat_get_tool (seat, serial_id);
if (!tool && serial_id > 0)
{
tool = gdk_device_tool_new (serial_id, 0,
tool = gdk_device_tool_new (serial_id, tool_id,
GDK_DEVICE_TOOL_TYPE_UNKNOWN, 0);
gdk_seat_default_add_tool (GDK_SEAT_DEFAULT (seat), tool);
}