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d23dd9af6b
ClutterInputDevice should be a type that we can subclass per-backend to add functionality.
152 lines
4.1 KiB
C
152 lines
4.1 KiB
C
#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "clutter-input-device-x11.h"
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#include "../clutter-debug.h"
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#include "../clutter-private.h"
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#ifdef HAVE_XINPUT
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#include <X11/extensions/XInput.h>
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#endif
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typedef struct _ClutterInputDeviceClass ClutterInputDeviceX11Class;
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/* a specific X11 input device */
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struct _ClutterInputDeviceX11
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{
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ClutterInputDevice device;
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#ifdef HAVE_XINPUT
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XDevice *xdevice;
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XEventClass xevent_list[5]; /* MAX 5 event types */
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int num_events;
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#endif
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};
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G_DEFINE_TYPE (ClutterInputDeviceX11,
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clutter_input_device_x11,
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CLUTTER_TYPE_INPUT_DEVICE);
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static void
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clutter_input_device_x11_class_init (ClutterInputDeviceX11Class *klass)
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{
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}
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static void
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clutter_input_device_x11_init (ClutterInputDeviceX11 *self)
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{
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}
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gint
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_clutter_input_device_x11_construct (ClutterInputDevice *device,
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ClutterBackendX11 *backend)
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{
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int n_events = 0;
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#ifdef HAVE_XINPUT
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ClutterInputDeviceX11 *device_x11;
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XDevice *x_device = NULL;
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gint device_id;
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int i;
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device_x11 = CLUTTER_INPUT_DEVICE_X11 (device);
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device_id = clutter_input_device_get_device_id (device);
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clutter_x11_trap_x_errors ();
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/* retrieve the X11 device */
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x_device = XOpenDevice (backend->xdpy, device_id);
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if (clutter_x11_untrap_x_errors () || x_device == NULL)
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{
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CLUTTER_NOTE (BACKEND, "Unable to open device %i", device_id);
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return 0;
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}
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device_x11->xdevice = x_device;
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CLUTTER_NOTE (BACKEND,
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"Registering XINPUT device with XID: %li",
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x_device->device_id);
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/* We must go through all the classes supported by this device and
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* register the appropriate events we want. Each class only appears
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* once. We need to store the types with the stage since they are
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* created dynamically by the server. They are not device specific.
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*/
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for (i = 0; i < x_device->num_classes; i++)
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{
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XInputClassInfo *xclass_info = x_device->classes + i;
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int button_press, button_release, motion_notify;
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button_press =
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backend->event_types[CLUTTER_X11_XINPUT_BUTTON_PRESS_EVENT];
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button_release =
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backend->event_types[CLUTTER_X11_XINPUT_BUTTON_RELEASE_EVENT];
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motion_notify =
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backend->event_types[CLUTTER_X11_XINPUT_MOTION_NOTIFY_EVENT];
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switch (xclass_info->input_class)
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{
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#if 0
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/* XInput 1.x is broken for keyboards: */
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case KeyClass:
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DeviceKeyPress (xdevice,
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backend->event_types[CLUTTER_X11_XINPUT_KEY_PRESS_EVENT],
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device_x11->xevent_list[n_events]);
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n_events++;
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DeviceKeyRelease (xdevice,
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backend->event_types[CLUTTER_X11_XINPUT_KEY_RELEASE_EVENT],
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device_x11->xevent_list[n_events]);
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n_events++;
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break;
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#endif
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case ButtonClass:
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DeviceButtonPress (x_device,
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button_press,
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device_x11->xevent_list[n_events]);
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n_events++;
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DeviceButtonRelease (x_device,
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button_release,
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device_x11->xevent_list[n_events]);
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n_events++;
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break;
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case ValuatorClass:
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DeviceMotionNotify (x_device,
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motion_notify,
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device_x11->xevent_list[n_events]);
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n_events++;
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break;
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}
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}
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device_x11->num_events = n_events;
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#endif /* HAVE_XINPUT */
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return n_events;
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}
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void
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_clutter_input_device_x11_select_events (ClutterInputDevice *device,
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ClutterBackendX11 *backend_x11,
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Window xwin)
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{
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#if HAVE_XINPUT
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ClutterInputDeviceX11 *device_x11;
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device_x11 = CLUTTER_INPUT_DEVICE_X11 (device);
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if (device_x11->xdevice == None || device_x11->num_events == 0)
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return;
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XSelectExtensionEvent (backend_x11->xdpy, xwin,
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device_x11->xevent_list,
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device_x11->num_events);
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#endif /* HAVE_XINPUT */
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}
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