133 lines
3.5 KiB
C
133 lines
3.5 KiB
C
#define EFL_EO_API_SUPPORT 1
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#define EFL_BETA_API_SUPPORT 1
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#include <stdio.h>
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#include <Eina.h>
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#include <Efl_Core.h>
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/*
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* Efl Core Event examples.
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*
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* This example shows the various ways of adding callbacks for standard events.
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* It also demonstrates the creation of a custom event and how to freeze and
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* thaw events on an object.
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*/
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static void
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_del_obj_cb(void *data EINA_UNUSED, const Efl_Event *event)
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{
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printf(" Delete Object %s\n", efl_name_get(event->object));
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}
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static void
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_custom_cb(void *data EINA_UNUSED, const Efl_Event *event)
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{
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printf(" Custom event called on %s\n", efl_name_get(event->object));
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}
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static void
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_poll_cb(void *data EINA_UNUSED, const Efl_Event *event)
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{
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printf(" Poll from %s\n", efl_name_get(event->object));
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}
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static void
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_freezethaw_cb(void *data, const Efl_Event *event)
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{
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Efl_Loop *polled = data;
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static int called = 0;
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switch (called)
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{
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case 0:
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printf(" Freeze %s from %s\n", efl_name_get(polled), efl_name_get(event->object));
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efl_event_freeze(polled);
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break;
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case 1:
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printf(" Thaw %s from %s\n", efl_name_get(polled), efl_name_get(event->object));
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efl_event_thaw(polled);
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break;
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default:
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printf(" %s expired: exitting\n", efl_name_get(event->object));
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efl_exit(0);
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}
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called++;
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}
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static void
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_events_freeze(Efl_Loop *mainloop)
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{
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printf("Test 2:\n");
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// Set up a new poll on the main loop that we will interupt with freeze.
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efl_event_callback_add(mainloop, EFL_LOOP_EVENT_POLL_HIGH, _poll_cb, NULL);
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// notify every 0.1 seconds
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efl_add(EFL_LOOP_TIMER_CLASS, mainloop,
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efl_name_set(efl_added, "timer2"),
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efl_loop_timer_interval_set(efl_added, .1),
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efl_event_callback_add(efl_added, EFL_LOOP_TIMER_EVENT_TIMER_TICK, _freezethaw_cb, mainloop));
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}
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static void
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_timer_cb(void *data EINA_UNUSED, const Efl_Event *event)
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{
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Efl_Loop *mainloop = (Efl_Loop *)data;
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printf(" Timer reached for %s\n", efl_name_get(event->object));
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// stop listening to polling events
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efl_event_callback_del(mainloop, EFL_LOOP_EVENT_POLL_HIGH, _poll_cb, NULL);
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// cancel this timer
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efl_del(event->object);
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// setup second test
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_events_freeze(mainloop);
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}
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EFL_CALLBACKS_ARRAY_DEFINE(_callback_array,
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{ EFL_LOOP_TIMER_EVENT_TIMER_TICK, _timer_cb },
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{ EFL_EVENT_DEL, _del_obj_cb })
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static void
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_events_demo(Efl_Loop *mainloop)
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{
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// this is a definition of a custom event, for our app
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Efl_Event_Description CUSTOM_EVENT = EFL_EVENT_DESCRIPTION("custom-event");
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printf("Test 1:\n");
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// add a single callback that gets called continuously
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efl_event_callback_add(mainloop, EFL_LOOP_EVENT_POLL_HIGH, _poll_cb, NULL);
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// here we add a custom callback and call it immediately
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efl_event_callback_add(mainloop, &CUSTOM_EVENT, _custom_cb, NULL);
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efl_event_callback_call(mainloop, &CUSTOM_EVENT, NULL);
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// we will exit from this timer after 0.1 seconds
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// add an array of callbacks (defined above)
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// this is more efficient if you have multiple callbacks to add
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efl_add(EFL_LOOP_TIMER_CLASS, mainloop,
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efl_name_set(efl_added, "timer1"),
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efl_loop_timer_interval_set(efl_added, 0.1),
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efl_event_callback_array_add(efl_added, _callback_array(), mainloop));
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printf(" Waiting for timer1 to call back...\n");
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}
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EAPI_MAIN void
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efl_main(void *data EINA_UNUSED, const Efl_Event *ev)
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{
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Efl_Loop *mainloop;
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mainloop = ev->object;
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efl_name_set(mainloop, "mainloop");
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_events_demo(mainloop);
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}
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EFL_MAIN()
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