efl

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/**
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 * Edje example demonstrating how to use multiseat features.
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 *
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 * You'll need at least one Evas engine built for it (excluding the
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 * buffer one) that supports multiseat. It may be wayland or
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 * X11 with VNC support. Using other engines will lead you to a
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 * situation where all seats are reported as the same one ("default").
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 *
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 * @verbatim
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 * edje_cc multiseat.edc && gcc -o edje-multiseat edje-multiseat.c `pkg-config --libs --cflags evas ecore ecore-evas edje`
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 * @endverbatim
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 */
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#else
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# define EINA_UNUSED
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#endif
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#ifndef PACKAGE_DATA_DIR
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#define PACKAGE_DATA_DIR "."
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#endif
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#include <Ecore.h>
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#include <Ecore_Evas.h>
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#include <Edje.h>
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#define EDJE_EDIT_IS_UNSTABLE_AND_I_KNOW_ABOUT_IT
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#include <Edje_Edit.h>
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#define WIDTH  400
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#define HEIGHT 400
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static const char *GROUPNAME = "example/main";
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static const char *PARTNAME_KNOB1 = "example/knob1";
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static const char *PARTNAME_KNOB2 = "example/knob2";
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static const char *EDJE_FILE = PACKAGE_DATA_DIR"/multiseat.edj";
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static void
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_on_destroy(Ecore_Evas *ee EINA_UNUSED)
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{
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   ecore_main_loop_quit();
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}
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static void
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_on_canvas_resize(Ecore_Evas *ee)
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{
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   Evas_Object *bg;
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   Evas_Object *edje_obj;
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   int w, h;
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   bg = ecore_evas_data_get(ee, "background");
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   edje_obj = ecore_evas_data_get(ee, "edje_obj");
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   ecore_evas_geometry_get(ee, NULL, NULL, &w, &h);
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   evas_object_resize(bg, w, h);
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   evas_object_resize(edje_obj, w, h);
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}
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static void
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_on_rect_focus_in(void *data, const Efl_Event *event)
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{
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   Evas_Object *rect, *edje_obj;
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   Efl_Input_Device *seat;
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   Eina_Stringshare *name;
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   Efl_Input_Focus *ev;
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   edje_obj = data;
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   rect = event->object;
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   ev = event->info;
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   seat = efl_input_device_get(ev);
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   name = efl_canvas_layout_seat_name_get(edje_obj, seat);
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   printf("Seat %s (%s) focused the rect object\n",
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          efl_name_get(seat), name);
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   if (!strcmp(name, "seat1"))
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     evas_object_color_set(rect, 200, 0, 0, 255);
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   else if (!strcmp(name, "seat2"))
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     evas_object_color_set(rect, 0, 200, 0, 255);
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   else
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     printf("Unexpected seat %s - no color change\n", name);
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}
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static void
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_on_rect_focus_out(void *data, const Efl_Event *event)
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{
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   Evas_Object *rect, *edje_obj;
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   Efl_Input_Device *seat;
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   Eina_Stringshare *name;
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   Efl_Input_Focus *ev;
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   edje_obj = data;
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   rect = event->object;
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   ev = event->info;
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   seat = efl_input_device_get(ev);
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   name = efl_canvas_layout_seat_name_get(edje_obj, seat);
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   printf("Seat %s (%s) unfocused the rect object\n",
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          efl_name_get(seat), name);
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   evas_object_color_set(rect, 200, 200, 200, 255);
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   efl_canvas_object_seat_focus_add(edje_obj, seat);
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}
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static void
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_on_key_down(void *data, Evas *e EINA_UNUSED, Evas_Object *o, void *event_info)
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{
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   Evas_Event_Key_Down *ev = event_info;
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   const Evas_Modifier *mods;
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   Efl_Input_Device *seat;
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   Evas *evas = data;
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   seat = efl_input_device_seat_get(ev->dev);
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   printf("Seat %s (%s) pressed key %s\n", efl_name_get(seat),
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          efl_canvas_layout_seat_name_get(o, seat), ev->key);
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   mods = evas_key_modifier_get(evas);
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   if (!strcmp(ev->key, "p") &&
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       evas_seat_key_modifier_is_set(mods, "Control", seat))
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     {
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        Evas_Object *edje_edit_obj;
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        edje_edit_obj = edje_edit_object_add(evas);
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        if (!edje_object_file_set(edje_edit_obj, EDJE_FILE, GROUPNAME))
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          printf("failed to set file %s.\n", EDJE_FILE);
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        printf("EDC source code:\n%s\n",
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               edje_edit_source_generate(edje_edit_obj));
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        evas_object_del(edje_edit_obj);
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     }
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}
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static void
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_on_drag_started(void *data EINA_UNUSED, Evas_Object *o, const char *emission, const char *source)
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{
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   Eina_Stringshare *seat_name;
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   const char *seat_name_str;
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   Efl_Input_Device *seat;
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   seat_name_str = emission + strlen("drag,start,");
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   seat_name = eina_stringshare_add(seat_name_str);
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   seat = efl_canvas_layout_seat_get(o, seat_name);
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   printf("Seat %s (%s) started drag %s\n", efl_name_get(seat),
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           seat_name, source);
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   eina_stringshare_del(seat_name);
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}
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static void
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_setup_drag(Evas_Object *edje_obj, const char *partname)
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{
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   if (!edje_object_part_drag_size_set(edje_obj, partname, 1.0, 0.4))
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     printf("error when setting drag size.\n");
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   if (!edje_object_part_drag_step_set(edje_obj, partname, 0.0, 0.1))
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     printf("error when setting drag step size.\n");
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   if (!edje_object_part_drag_page_set(edje_obj, partname, 0.0, 0.3))
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     printf("error when setting drag page step size.\n");
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   edje_object_signal_callback_add(edje_obj, "drag,start,*", partname,
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                                   _on_drag_started, NULL);
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}
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static void
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_edje_load_cb(void *data EINA_UNUSED, Evas_Object *o EINA_UNUSED, const char *emission EINA_UNUSED, const char *source EINA_UNUSED)
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{
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   printf("Edje loaded\n");
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}
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static void
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_edje_seat_cb(void *data EINA_UNUSED, Evas_Object *o EINA_UNUSED, const char *emission, const char *source EINA_UNUSED)
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{
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   const char *sig;
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   sig = emission + strlen("seat,");
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   printf("Device %s\n", sig);
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}
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static void
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_device_added(void *data, const Efl_Event *event)
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{
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   Efl_Input_Device *dev = event->info;
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   Evas_Object *edje_obj = data;
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   if (efl_input_device_type_get(dev) != EFL_INPUT_DEVICE_TYPE_SEAT)
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     return;
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   efl_canvas_object_seat_focus_add(edje_obj, dev);
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}
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int
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main(int argc EINA_UNUSED, char *argv[] EINA_UNUSED)
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{
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   const Eina_List *devices, *l;
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   Evas_Object *edje_obj, *bg, *rect;
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   Efl_Input_Device *dev;
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   Ecore_Evas *ee;
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   Evas *evas;
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   if (!ecore_evas_init())
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     return EXIT_FAILURE;
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   if (!edje_init())
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     goto shutdown_ecore_evas;
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   ee = ecore_evas_new(NULL, 0, 0, WIDTH, HEIGHT, NULL);
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   if (!ee) goto shutdown_edje;
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   ecore_evas_callback_destroy_set(ee, _on_destroy);
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   ecore_evas_callback_resize_set(ee, _on_canvas_resize);
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   ecore_evas_title_set(ee, "Edje Multiseat Example");
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   evas = ecore_evas_get(ee);
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   bg = evas_object_rectangle_add(evas);
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   evas_object_color_set(bg, 255, 255, 255, 255);
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   evas_object_resize(bg, WIDTH, HEIGHT);
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   evas_object_show(bg);
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   ecore_evas_data_set(ee, "background", bg);
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   edje_obj = edje_object_add(evas);
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   if (!edje_object_file_set(edje_obj, EDJE_FILE, GROUPNAME))
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     printf("failed to set file %s.\n", EDJE_FILE);
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   evas_object_move(edje_obj, 0, 0);
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   evas_object_resize(edje_obj, WIDTH, HEIGHT);
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   evas_object_show(edje_obj);
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   ecore_evas_data_set(ee, "edje_obj", edje_obj);
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   _setup_drag(edje_obj, PARTNAME_KNOB1);
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   _setup_drag(edje_obj, PARTNAME_KNOB2);
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   edje_object_part_text_set(edje_obj, "example/text1", "Type here : ");
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   edje_object_part_text_cursor_end_set(edje_obj, "example/text1",
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                                        EDJE_CURSOR_MAIN);
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   edje_object_part_text_set(edje_obj, "example/text2", "Or maybe here : ");
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   edje_object_part_text_cursor_end_set(edje_obj, "example/text2",
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                                        EDJE_CURSOR_MAIN);
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   rect = evas_object_rectangle_add(evas);
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   evas_object_color_set(rect, 200, 200, 200, 255);
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   edje_object_part_swallow(edje_obj, "example/swallow", rect);
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   efl_event_callback_add(rect, EFL_EVENT_FOCUS_IN,
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                          _on_rect_focus_in, edje_obj);
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   efl_event_callback_add(rect, EFL_EVENT_FOCUS_OUT,
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                          _on_rect_focus_out, edje_obj);
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   devices = evas_device_list(evas, NULL);
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   EINA_LIST_FOREACH(devices, l, dev)
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     {
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        if (efl_input_device_type_get(dev) == EFL_INPUT_DEVICE_TYPE_SEAT)
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          efl_canvas_object_seat_focus_add(edje_obj, dev);
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     }
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   efl_event_callback_add(evas, EFL_CANVAS_SCENE_EVENT_DEVICE_ADDED,
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                          _device_added, edje_obj);
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   evas_object_event_callback_add(edje_obj, EVAS_CALLBACK_KEY_DOWN,
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                                  _on_key_down, evas);
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   edje_object_signal_callback_add(edje_obj, "seat,*", "",
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                                   _edje_seat_cb, NULL);
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   edje_object_signal_callback_add(edje_obj, "load", "",
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                                   _edje_load_cb, NULL);
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   printf("Running example on evas engine %s\n",
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          ecore_evas_engine_name_get(ee));
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   printf("Press 'Ctrl + p' to print EDC source code\n");
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   ecore_evas_show(ee);
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   ecore_main_loop_begin();
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   ecore_evas_free(ee);
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   ecore_evas_shutdown();
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   edje_shutdown();
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   return EXIT_SUCCESS;
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shutdown_edje:
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   edje_shutdown();
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shutdown_ecore_evas:
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   ecore_evas_shutdown();
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   return EXIT_FAILURE;
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}
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