forked from AuroraMiddleware/gtk
38cba6895a
Tools on the same physical item have the same serial number, so the eraser and the pen part of a single pen share that serial number. With the current lookup code, we'll always return whichever tool comes first into proximity. Change the code to use the hw id in addition to the serial number, this way we can differ between two tools.
471 lines
14 KiB
C
471 lines
14 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 2015 Red Hat
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Carlos Garnacho <carlosg@gnome.org>
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*/
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#include "config.h"
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#include <glib-object.h>
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#include "gdkdisplay.h"
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#include "gdkdevice.h"
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#include "gdkseatprivate.h"
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#include "gdkdeviceprivate.h"
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#include "gdkintl.h"
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/**
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* SECTION:gdkseat
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* @Short_description: Object representing an user seat
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* @Title: GdkSeat
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* @See_also: #GdkDisplay, #GdkDevice
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*
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* The #GdkSeat object represents a collection of input devices
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* that belong to a user.
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*/
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/**
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* GdkSeat:
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*
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* The GdkSeat struct contains only private fields and
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* should not be accessed directly.
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*/
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typedef struct _GdkSeatPrivate GdkSeatPrivate;
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struct _GdkSeatPrivate
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{
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GdkDisplay *display;
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};
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enum {
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DEVICE_ADDED,
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DEVICE_REMOVED,
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TOOL_ADDED,
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TOOL_REMOVED,
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N_SIGNALS
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};
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enum {
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PROP_0,
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PROP_DISPLAY,
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N_PROPS
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};
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static guint signals[N_SIGNALS] = { 0 };
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static GParamSpec *props[N_PROPS] = { NULL };
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G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (GdkSeat, gdk_seat, G_TYPE_OBJECT)
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static void
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gdk_seat_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GdkSeatPrivate *priv = gdk_seat_get_instance_private (GDK_SEAT (object));
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switch (prop_id)
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{
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case PROP_DISPLAY:
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priv->display = g_value_get_object (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gdk_seat_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GdkSeatPrivate *priv = gdk_seat_get_instance_private (GDK_SEAT (object));
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switch (prop_id)
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{
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case PROP_DISPLAY:
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g_value_set_object (value, priv->display);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gdk_seat_class_init (GdkSeatClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->set_property = gdk_seat_set_property;
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object_class->get_property = gdk_seat_get_property;
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/**
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* GdkSeat::device-added:
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* @seat: the object on which the signal is emitted
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* @device: the newly added #GdkDevice.
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*
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* The ::device-added signal is emitted when a new input
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* device is related to this seat.
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*/
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signals [DEVICE_ADDED] =
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g_signal_new (g_intern_static_string ("device-added"),
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GdkSeatClass, device_added),
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NULL, NULL,
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g_cclosure_marshal_VOID__OBJECT,
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G_TYPE_NONE, 1,
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GDK_TYPE_DEVICE);
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/**
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* GdkSeat::device-removed:
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* @seat: the object on which the signal is emitted
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* @device: the just removed #GdkDevice.
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*
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* The ::device-removed signal is emitted when an
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* input device is removed (e.g. unplugged).
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*/
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signals [DEVICE_REMOVED] =
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g_signal_new (g_intern_static_string ("device-removed"),
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GdkSeatClass, device_removed),
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NULL, NULL,
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g_cclosure_marshal_VOID__OBJECT,
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G_TYPE_NONE, 1,
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GDK_TYPE_DEVICE);
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/**
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* GdkSeat::tool-added:
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* @seat: the object on which the signal is emitted
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* @tool: the new #GdkDeviceTool known to the seat
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*
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* The ::tool-added signal is emitted whenever a new tool
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* is made known to the seat. The tool may later be assigned
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* to a device (i.e. on proximity with a tablet). The device
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* will emit the #GdkDevice::tool-changed signal accordingly.
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*
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* A same tool may be used by several devices.
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*/
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signals [TOOL_ADDED] =
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g_signal_new (g_intern_static_string ("tool-added"),
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST,
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0, NULL, NULL,
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g_cclosure_marshal_VOID__BOXED,
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G_TYPE_NONE, 1,
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GDK_TYPE_DEVICE_TOOL);
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/**
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* GdkSeat::tool-removed:
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* @seat: the object on which the signal is emitted
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* @tool: the just removed #GdkDeviceTool
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*
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* This signal is emitted whenever a tool is no longer known
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* to this @seat.
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*/
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signals [TOOL_REMOVED] =
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g_signal_new (g_intern_static_string ("tool-removed"),
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST,
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0, NULL, NULL,
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g_cclosure_marshal_VOID__BOXED,
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G_TYPE_NONE, 1,
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GDK_TYPE_DEVICE_TOOL);
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/**
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* GdkSeat:display:
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*
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* #GdkDisplay of this seat.
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*/
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props[PROP_DISPLAY] =
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g_param_spec_object ("display",
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P_("Display"),
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P_("Display"),
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GDK_TYPE_DISPLAY,
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G_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY |
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G_PARAM_STATIC_STRINGS);
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g_object_class_install_properties (object_class, N_PROPS, props);
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}
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static void
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gdk_seat_init (GdkSeat *seat)
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{
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}
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/**
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* gdk_seat_get_capabilities:
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* @seat: a #GdkSeat
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*
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* Returns the capabilities this #GdkSeat currently has.
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*
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* Returns: the seat capabilities
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**/
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GdkSeatCapabilities
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gdk_seat_get_capabilities (GdkSeat *seat)
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{
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GdkSeatClass *seat_class;
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g_return_val_if_fail (GDK_IS_SEAT (seat), GDK_SEAT_CAPABILITY_NONE);
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seat_class = GDK_SEAT_GET_CLASS (seat);
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return seat_class->get_capabilities (seat);
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}
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/**
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* gdk_seat_grab:
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* @seat: a #GdkSeat
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* @surface: the #GdkSurface which will own the grab
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* @capabilities: capabilities that will be grabbed
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* @owner_events: if %FALSE then all device events are reported with respect to
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* @surface and are only reported if selected by @event_mask. If
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* %TRUE then pointer events for this application are reported
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* as normal, but pointer events outside this application are
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* reported with respect to @surface and only if selected by
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* @event_mask. In either mode, unreported events are discarded.
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* @cursor: (nullable): the cursor to display while the grab is active. If
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* this is %NULL then the normal cursors are used for
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* @surface and its descendants, and the cursor for @surface is used
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* elsewhere.
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* @event: (nullable): the event that is triggering the grab, or %NULL if none
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* is available.
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* @prepare_func: (nullable) (scope call) (closure prepare_func_data): function to
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* prepare the surface to be grabbed, it can be %NULL if @surface is
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* visible before this call.
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* @prepare_func_data: user data to pass to @prepare_func
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*
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* Grabs the seat so that all events corresponding to the given @capabilities
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* are passed to this application until the seat is ungrabbed with gdk_seat_ungrab(),
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* or the surface becomes hidden. This overrides any previous grab on the
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* seat by this client.
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*
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* As a rule of thumb, if a grab is desired over %GDK_SEAT_CAPABILITY_POINTER,
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* all other "pointing" capabilities (eg. %GDK_SEAT_CAPABILITY_TOUCH) should
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* be grabbed too, so the user is able to interact with all of those while
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* the grab holds, you should thus use %GDK_SEAT_CAPABILITY_ALL_POINTING most
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* commonly.
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*
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* Grabs are used for operations which need complete control over the
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* events corresponding to the given capabilities. For example in GTK+ this
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* is used for Drag and Drop operations, popup menus and such.
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*
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* Note that if the event mask of a #GdkSurface has selected both button press
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* and button release events, or touch begin and touch end, then a press event
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* will cause an automatic grab until the button is released, equivalent to a
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* grab on the surface with @owner_events set to %TRUE. This is done because most
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* applications expect to receive paired press and release events.
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*
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* If you set up anything at the time you take the grab that needs to be
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* cleaned up when the grab ends, you should handle the #GdkEventGrabBroken
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* events that are emitted when the grab ends unvoluntarily.
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*
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* Returns: %GDK_GRAB_SUCCESS if the grab was successful.
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**/
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GdkGrabStatus
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gdk_seat_grab (GdkSeat *seat,
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GdkSurface *surface,
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GdkSeatCapabilities capabilities,
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gboolean owner_events,
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GdkCursor *cursor,
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const GdkEvent *event,
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GdkSeatGrabPrepareFunc prepare_func,
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gpointer prepare_func_data)
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{
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GdkSeatClass *seat_class;
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g_return_val_if_fail (GDK_IS_SEAT (seat), GDK_GRAB_FAILED);
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g_return_val_if_fail (GDK_IS_SURFACE (surface), GDK_GRAB_FAILED);
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capabilities &= GDK_SEAT_CAPABILITY_ALL;
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g_return_val_if_fail (capabilities != GDK_SEAT_CAPABILITY_NONE, GDK_GRAB_FAILED);
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seat_class = GDK_SEAT_GET_CLASS (seat);
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return seat_class->grab (seat, surface, capabilities, owner_events, cursor,
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event, prepare_func, prepare_func_data);
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}
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/**
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* gdk_seat_ungrab:
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* @seat: a #GdkSeat
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*
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* Releases a grab added through gdk_seat_grab().
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**/
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void
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gdk_seat_ungrab (GdkSeat *seat)
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{
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GdkSeatClass *seat_class;
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g_return_if_fail (GDK_IS_SEAT (seat));
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seat_class = GDK_SEAT_GET_CLASS (seat);
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seat_class->ungrab (seat);
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}
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/**
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* gdk_seat_get_slaves:
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* @seat: a #GdkSeat
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* @capabilities: capabilities to get devices for
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*
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* Returns the slave devices that match the given capabilities.
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*
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* Returns: (transfer container) (element-type GdkDevice): A list of #GdkDevices.
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* The list must be freed with g_list_free(), the elements are owned
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* by GDK and must not be freed.
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**/
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GList *
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gdk_seat_get_slaves (GdkSeat *seat,
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GdkSeatCapabilities capabilities)
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{
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GdkSeatClass *seat_class;
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g_return_val_if_fail (GDK_IS_SEAT (seat), NULL);
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seat_class = GDK_SEAT_GET_CLASS (seat);
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return seat_class->get_slaves (seat, capabilities);
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}
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/**
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* gdk_seat_get_pointer:
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* @seat: a #GdkSeat
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*
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* Returns the master device that routes pointer events.
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*
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* Returns: (transfer none) (nullable): a master #GdkDevice with pointer
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* capabilities. This object is owned by GTK+ and must not be freed.
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**/
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GdkDevice *
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gdk_seat_get_pointer (GdkSeat *seat)
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{
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GdkSeatClass *seat_class;
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g_return_val_if_fail (GDK_IS_SEAT (seat), NULL);
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seat_class = GDK_SEAT_GET_CLASS (seat);
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return seat_class->get_master (seat, GDK_SEAT_CAPABILITY_POINTER);
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}
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/**
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* gdk_seat_get_keyboard:
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* @seat: a #GdkSeat
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*
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* Returns the master device that routes keyboard events.
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*
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* Returns: (transfer none) (nullable): a master #GdkDevice with keyboard
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* capabilities. This object is owned by GTK+ and must not be freed.
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**/
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GdkDevice *
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gdk_seat_get_keyboard (GdkSeat *seat)
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{
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GdkSeatClass *seat_class;
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g_return_val_if_fail (GDK_IS_SEAT (seat), NULL);
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seat_class = GDK_SEAT_GET_CLASS (seat);
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return seat_class->get_master (seat, GDK_SEAT_CAPABILITY_KEYBOARD);
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}
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void
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gdk_seat_device_added (GdkSeat *seat,
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GdkDevice *device)
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{
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gdk_device_set_seat (device, seat);
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g_signal_emit (seat, signals[DEVICE_ADDED], 0, device);
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}
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void
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gdk_seat_device_removed (GdkSeat *seat,
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GdkDevice *device)
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{
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gdk_device_set_seat (device, NULL);
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g_signal_emit (seat, signals[DEVICE_REMOVED], 0, device);
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}
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/**
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* gdk_seat_get_display:
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* @seat: a #GdkSeat
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*
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* Returns the #GdkDisplay this seat belongs to.
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*
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* Returns: (transfer none): a #GdkDisplay. This object is owned by GTK+
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* and must not be freed.
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**/
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GdkDisplay *
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gdk_seat_get_display (GdkSeat *seat)
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{
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GdkSeatPrivate *priv = gdk_seat_get_instance_private (seat);
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g_return_val_if_fail (GDK_IS_SEAT (seat), NULL);
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return priv->display;
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}
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void
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gdk_seat_tool_added (GdkSeat *seat,
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GdkDeviceTool *tool)
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{
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g_signal_emit (seat, signals[TOOL_ADDED], 0, tool);
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}
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void
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gdk_seat_tool_removed (GdkSeat *seat,
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GdkDeviceTool *tool)
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{
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g_signal_emit (seat, signals[TOOL_REMOVED], 0, tool);
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}
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GdkDeviceTool *
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gdk_seat_get_tool (GdkSeat *seat,
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guint64 serial,
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guint64 hw_id)
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{
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GdkSeatClass *seat_class;
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g_return_val_if_fail (GDK_IS_SEAT (seat), NULL);
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seat_class = GDK_SEAT_GET_CLASS (seat);
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return seat_class->get_tool (seat, serial, hw_id);
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}
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/**
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* gdk_seat_get_master_pointers:
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* @seat: The #GdkSeat
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* @capabilities: Queried capabilities
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*
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* Returns all master pointers with the given capabilities driven by this @seat.
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* On most backends this function will return a list with a single element (meaning
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* that all input devices drive the same onscreen cursor).
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*
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* In other backends where there can possibly be multiple foci (eg. wayland),
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* this function will return all master #GdkDevices that represent these.
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*
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* Returns: (transfer container) (element-type GdkDevice): A list
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* of master pointing devices
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*/
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GList *
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gdk_seat_get_master_pointers (GdkSeat *seat,
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GdkSeatCapabilities capabilities)
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{
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g_return_val_if_fail (GDK_IS_SEAT (seat), NULL);
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return GDK_SEAT_GET_CLASS (seat)->get_master_pointers (seat, capabilities);
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}
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