forked from enlightenment/efl
ecore-wayland: Add a grab_count variable for synchronization wl_input_grab/ungrab with pointer and touch event
Summary: The touch screen device generates touch events. But in some special enviroments, a first finger will be matched to a pointer event(not touch event). And other fingers (second, third, ...) will be matched touch events. In that case ecore_wl_input_ungrab() is called abnormally. A first finger pressed, _ecore_wl_input_cb_pointer_button() call ecore_wl_input_grab(). A second finger pressed, _ecore_wl_input_cb_touch_down() is called but not grab. But when a second finger is released, _ecore_wl_input_cb_touch_up() call ecore_wl_input_ungrab() So ungrab function generate two mouse up events and a first finger is released. In other case, first finger pressed -> second finger pressed -> first finger release. That case when a first finger released a second finger release event is generated. So after that application doesn't get a release event about a second finger when a second finger is really released. I think in a multitouch case, ungrab function will be called when a all finger are released. So I add a grab_count variable for count currently touched fingers. And only called a ungrab funtion all fingers are released. Test Plan: In a touch screen supported multitouch, press two or more fingers and release. And watch events generation. Reviewers: raster, devilhorns Subscribers: cedric Differential Revision: https://phab.enlightenment.org/D2481
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@ -583,7 +583,7 @@ _ecore_wl_input_cb_pointer_button(void *data, struct wl_pointer *pointer EINA_UN
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if (state)
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{
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if ((input->pointer_focus) && (!input->grab))
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if ((input->pointer_focus) && (!input->grab) && (!input->grab_count))
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{
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ecore_wl_input_grab(input, input->pointer_focus, button);
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input->grab_timestamp = timestamp;
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@ -592,6 +592,7 @@ _ecore_wl_input_cb_pointer_button(void *data, struct wl_pointer *pointer EINA_UN
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if (input->pointer_focus)
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_ecore_wl_input_mouse_down_send(input, input->pointer_focus,
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0, button, timestamp);
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input->grab_count++;
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}
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else
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{
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@ -599,7 +600,10 @@ _ecore_wl_input_cb_pointer_button(void *data, struct wl_pointer *pointer EINA_UN
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_ecore_wl_input_mouse_up_send(input, input->pointer_focus,
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0, button, timestamp);
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if ((input->grab) && (input->grab_button == button) && (!state))
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input->grab_count--;
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if (input->grab_count < 0)
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input->grab_count = 0;
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if ((input->grab) && (input->grab_button == button) && (!state) && (!input->grab_count))
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ecore_wl_input_ungrab(input);
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}
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@ -1074,16 +1078,21 @@ _ecore_wl_input_cb_touch_down(void *data, struct wl_touch *touch EINA_UNUSED, un
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input->sx = wl_fixed_to_int(x);
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input->sy = wl_fixed_to_int(y);
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_ecore_wl_input_mouse_move_send(input, input->touch_focus, timestamp, id);
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//_ecore_wl_input_mouse_move_send(input, input->touch_focus, timestamp, id);
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if (!input->grab_count)
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{
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_ecore_wl_input_cb_pointer_enter(data, NULL, serial, surface, x, y);
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if ((input->touch_focus) && (!input->grab))
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{
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ecore_wl_input_grab(input, input->touch_focus, BTN_LEFT);
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input->grab_timestamp = timestamp;
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}
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}
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_ecore_wl_input_mouse_down_send(input, input->touch_focus,
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id, BTN_LEFT, timestamp);
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input->grab_count++;
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}
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static void
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@ -1100,7 +1109,10 @@ _ecore_wl_input_cb_touch_up(void *data, struct wl_touch *touch EINA_UNUSED, unsi
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input->display->serial = serial;
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_ecore_wl_input_mouse_up_send(input, input->touch_focus, id, BTN_LEFT, timestamp);
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if ((input->grab) && (input->grab_button == BTN_LEFT))
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input->grab_count--;
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if (input->grab_count < 0)
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input->grab_count = 0;
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if ((input->grab) && (input->grab_button == BTN_LEFT) && (!input->grab_count))
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ecore_wl_input_ungrab(input);
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}
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@ -209,6 +209,7 @@ struct _Ecore_Wl_Input
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Ecore_Wl_Window *grab;
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unsigned int grab_button;
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unsigned int grab_timestamp;
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unsigned int grab_count;
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Ecore_Wl_Dnd_Source *drag_source;
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Ecore_Wl_Dnd_Source *selection_source;
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