evdev: Add mouse support
We know support EV_REL events comming from evdev devices. This addition is pretty straigthforward, it adds a x,y per GSource listening to a evdev device, updates from EL_REL (relative) events and craft new ClutterMotionEvents. As for buttons, BTN_LEFT..BTN_TASK are translated to ClutterButtonEvents with 1..8 as button number.
This commit is contained in:
Damien Lespiau
parent
94c2812d72
commit
c20beabf93
@ -96,6 +96,7 @@ struct _ClutterEventSource
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GPollFD event_poll_fd; /* file descriptor of the /dev node */
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struct xkb_desc *xkb; /* compiled xkb keymap */
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uint32_t modifier_state; /* remember the modifier state */
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gint x, y; /* last x, y position for pointers */
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};
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static gboolean
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@ -130,24 +131,144 @@ clutter_event_check (GSource *source)
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return retval;
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}
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static void
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queue_event (ClutterEvent *event)
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{
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ClutterMainContext *context;
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if (event == NULL)
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return;
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context = _clutter_context_get_default ();
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g_queue_push_head (context->events_queue, event);
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}
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static void
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notify_key (ClutterEventSource *source,
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guint32 time_,
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guint32 key,
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guint32 state)
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{
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ClutterEvent *event = NULL;
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ClutterActor *stage;
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stage = clutter_stage_get_default ();
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/* if we have a mapping for that device, use it to generate the event */
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if (source->xkb)
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event =
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_clutter_key_event_new_from_evdev ((ClutterInputDevice *) source->device,
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CLUTTER_STAGE (stage),
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source->xkb,
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time_, key, state,
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&source->modifier_state);
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queue_event (event);
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}
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static void
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notify_motion (ClutterEventSource *source,
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guint32 time_,
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gint x,
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gint y)
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{
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gfloat stage_width, stage_height, new_x, new_y;
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ClutterEvent *event;
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ClutterActor *stage;
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stage = clutter_stage_get_default ();
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stage_width = clutter_actor_get_width (stage);
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stage_height = clutter_actor_get_height (stage);
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event = clutter_event_new (CLUTTER_MOTION);
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if (x < 0)
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new_x = 0.f;
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else if (x >= stage_width)
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new_x = stage_width - 1;
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else
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new_x = x;
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if (y < 0)
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new_y = 0.f;
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else if (y >= stage_height)
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new_y = stage_height - 1;
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else
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new_y = y;
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source->x = new_x;
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source->y = new_y;
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event->motion.time = time_;
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event->motion.stage = CLUTTER_STAGE (stage);
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event->motion.device = (ClutterInputDevice *) source->device;
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event->motion.modifier_state = source->modifier_state;
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event->motion.x = new_x;
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event->motion.y = new_y;
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queue_event (event);
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}
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static void
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notify_button (ClutterEventSource *source,
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guint32 time_,
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guint32 button,
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guint32 state)
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{
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ClutterEvent *event;
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ClutterActor *stage;
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gint button_nr;
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static gint maskmap[5] =
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{
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CLUTTER_BUTTON1_MASK, CLUTTER_BUTTON2_MASK, CLUTTER_BUTTON3_MASK,
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CLUTTER_BUTTON4_MASK, CLUTTER_BUTTON5_MASK
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};
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stage = clutter_stage_get_default ();
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button_nr = button - BTN_LEFT + 1;
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if (G_UNLIKELY (button_nr < 1 || button_nr > 8))
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{
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g_warning ("Unhandled button event 0x%x", button);
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return;
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}
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if (state)
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event = clutter_event_new (CLUTTER_BUTTON_PRESS);
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else
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event = clutter_event_new (CLUTTER_BUTTON_RELEASE);
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/* Update the modfiers */
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if (state)
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source->modifier_state |= maskmap[button - BTN_LEFT];
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else
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source->modifier_state &= ~maskmap[button - BTN_LEFT];
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event->button.time = time_;
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event->button.stage = CLUTTER_STAGE (stage);
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event->button.device = (ClutterInputDevice *) source->device;
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event->button.modifier_state = source->modifier_state;
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event->button.button = button_nr;
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event->button.x = source->x;
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event->button.y = source->y;
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queue_event (event);
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}
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static gboolean
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clutter_event_dispatch (GSource *g_source,
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GSourceFunc callback,
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gpointer user_data)
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{
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ClutterEventSource *source = (ClutterEventSource *) g_source;
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ClutterInputDevice *input_device = (ClutterInputDevice *) source->device;
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ClutterMainContext *clutter_context;
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struct input_event ev[8];
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ClutterEvent *event = NULL;
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ClutterStage *stage;
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gint len, i;
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ClutterEvent *event;
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gint len, i, dx = 0, dy = 0;
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uint32_t _time;
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clutter_threads_enter ();
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clutter_context = _clutter_context_get_default ();
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stage = CLUTTER_STAGE (clutter_stage_get_default ());
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/* Don't queue more events if we haven't finished handling the previous batch
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*/
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if (!clutter_events_pending ())
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@ -183,9 +304,9 @@ clutter_event_dispatch (GSource *g_source,
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for (i = 0; i < len / sizeof (ev[0]); i++)
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{
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struct input_event *e = &ev[i];
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uint32_t _time;
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_time = e->time.tv_sec * 1000 + e->time.tv_usec / 1000;
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event = NULL;
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switch (e->type)
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{
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@ -196,36 +317,68 @@ clutter_event_dispatch (GSource *g_source,
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if (e->value == 2)
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continue;
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/* if we have a mapping for that device, use it to generate
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* the event */
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if (source->xkb)
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event =
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_clutter_key_event_new_from_evdev (input_device,
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stage,
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source->xkb,
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_time, e->code, e->value,
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&source->modifier_state);
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switch (e->code)
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{
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case BTN_TOUCH:
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case BTN_TOOL_PEN:
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case BTN_TOOL_RUBBER:
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case BTN_TOOL_BRUSH:
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case BTN_TOOL_PENCIL:
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case BTN_TOOL_AIRBRUSH:
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case BTN_TOOL_FINGER:
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case BTN_TOOL_MOUSE:
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case BTN_TOOL_LENS:
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break;
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case BTN_LEFT:
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case BTN_RIGHT:
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case BTN_MIDDLE:
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case BTN_SIDE:
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case BTN_EXTRA:
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case BTN_FORWARD:
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case BTN_BACK:
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case BTN_TASK:
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notify_button(source, _time, e->code, e->value);
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break;
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default:
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notify_key (source, _time, e->code, e->value);
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break;
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}
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break;
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case EV_SYN:
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/* Nothing to do here? */
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break;
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case EV_MSC:
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/* Nothing to do here? */
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break;
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case EV_ABS:
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case EV_REL:
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/* compress the EV_REL events in dx/dy */
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switch (e->code)
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{
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case REL_X:
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dx += e->value;
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break;
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case REL_Y:
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dy += e->value;
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break;
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}
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break;
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case EV_ABS:
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default:
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g_warning ("Unhandled event of type %d", e->type);
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break;
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}
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if (event)
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{
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g_queue_push_head (clutter_context->events_queue, event);
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event = NULL;
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}
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queue_event (event);
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}
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if (dx != 0 || dy != 0)
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notify_motion (source, _time, source->x + dx, source->y + dy);
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}
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/* Pop an event off the queue if any */
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@ -295,6 +448,20 @@ clutter_event_source_new (ClutterInputDeviceEvdev *input_device)
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return NULL;
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}
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}
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else if (type == CLUTTER_POINTER_DEVICE)
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{
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/* initialize the pointer position to the center of the default stage */
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ClutterActor *stage;
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gfloat stage_width, stage_height;
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stage = clutter_stage_get_default ();
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stage_width = clutter_actor_get_width (stage);
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stage_height = clutter_actor_get_height (stage);
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event_source->x = (gint) stage_width / 2;
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event_source->y = (gint) stage_height / 2;
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}
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/* and finally configure and attach the GSource */
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g_source_set_priority (source, CLUTTER_PRIORITY_EVENTS);
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@ -361,6 +528,7 @@ evdev_add_device (ClutterDeviceManagerEvdev *manager_evdev,
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ClutterDeviceManager *manager = (ClutterDeviceManager *) manager_evdev;
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ClutterInputDeviceType type = CLUTTER_EXTENSION_DEVICE;
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ClutterInputDevice *device;
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ClutterActor *stage;
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const gchar *device_file, *sysfs_path;
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const gchar * const *keys;
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guint i;
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@ -406,6 +574,11 @@ evdev_add_device (ClutterDeviceManagerEvdev *manager_evdev,
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"sysfs-path", sysfs_path,
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"device-path", device_file,
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NULL);
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/* Always associate the device to the default stage */
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stage = clutter_stage_get_default ();
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_clutter_input_device_set_stage (device, CLUTTER_STAGE (stage));
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_clutter_device_manager_add_device (manager, device);
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CLUTTER_NOTE (EVENT, "Added device %s, type %d, sysfs %s",
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@ -187,8 +187,12 @@ input_cb (ClutterActor *actor,
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keybuf);
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break;
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case CLUTTER_MOTION:
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g_print ("[%s] MOTION",
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clutter_actor_get_name (source_actor));
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{
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ClutterMotionEvent *motion = (ClutterMotionEvent *) event;
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g_print ("[%s] MOTION (%.02f,%.02f)",
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clutter_actor_get_name (source_actor), motion->x, motion->y);
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}
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break;
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case CLUTTER_ENTER:
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g_print ("[%s] ENTER (from:%s)",
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