elput: Add code to handle keybindings for vt switching

This patch makes elput handle receiving the key combinations for vt
switching and perform the actual switch itself. This is done so that
ecore_drm2, ecore_fb, etc, etc do not each need their own code to
handle vt switching.

@feature

Signed-off-by: Chris Michael <cpmichael@osg.samsung.com>

2 files changed, 42 insertions, 4 deletions

diff --git a/src/lib/elput/elput_manager.c b/src/lib/elput/elput_manager.c
index e267951b30..13db80973f 100644
--- a/src/lib/elput/elput_manager.c
+++ b/src/lib/elput/elput_manager.c
@@ -5,11 +5,35 @@ static Elput_Interface *_ifaces[] =
 #ifdef HAVE_SYSTEMD
    &_logind_interface,
 #endif
-   NULL, // launcher
-   NULL, // direct
    NULL,
 };
 
+static Eina_Bool
+_cb_key_down(void *data, int type EINA_UNUSED, void *event)
+{
+   Elput_Manager *em;
+   Ecore_Event_Key *ev;
+   int code = 0, vt = 0;
+
+   em = data;
+   ev = event;
+   code = (ev->keycode - 8);
+
+   if ((ev->modifiers & ECORE_EVENT_MODIFIER_CTRL) &&
+       (ev->modifiers & ECORE_EVENT_MODIFIER_ALT) &&
+       (code >= KEY_F1) && (code <= KEY_F8))
+     {
+        vt = (code - KEY_F1 + 1);
+        if (em->interface->vt_set)
+          {
+             if (!em->interface->vt_set(em, vt))
+               ERR("Failed to switch to virtual terminal %d", vt);
+          }
+     }
+
+   return ECORE_CALLBACK_RENEW;
+}
+
 EAPI Elput_Manager *
 elput_manager_connect(const char *seat, unsigned int tty, Eina_Bool sync)
 {
@@ -41,6 +65,8 @@ elput_manager_disconnect(Elput_Manager *manager)
 EAPI int
 elput_manager_open(Elput_Manager *manager, const char *path, int flags)
 {
+   int ret = -1;
+
    EINA_SAFETY_ON_NULL_RETURN_VAL(manager, -1);
    EINA_SAFETY_ON_NULL_RETURN_VAL(manager->interface, -1);
    EINA_SAFETY_ON_NULL_RETURN_VAL(path, -1);
@@ -48,9 +74,17 @@ elput_manager_open(Elput_Manager *manager, const char *path, int flags)
    if (flags < 0) flags = O_RDWR;
 
    if (manager->interface->open)
-     return manager->interface->open(manager, path, flags);
+     {
+        ret = manager->interface->open(manager, path, flags);
+        if (ret)
+          {
+             manager->vt_hdlr =
+               ecore_event_handler_add(ECORE_EVENT_KEY_DOWN,
+                                       _cb_key_down, manager);
+          }
+     }
 
-   return -1;
+   return ret;
 }
 
 EAPI void
@@ -59,6 +93,9 @@ elput_manager_close(Elput_Manager *manager, int fd)
    EINA_SAFETY_ON_NULL_RETURN(manager);
    EINA_SAFETY_ON_NULL_RETURN(manager->interface);
 
+   if (manager->vt_hdlr) ecore_event_handler_del(manager->vt_hdlr);
+   manager->vt_hdlr = NULL;
+
    if (manager->interface->close)
      manager->interface->close(manager, fd);
 }
diff --git a/src/lib/elput/elput_private.h b/src/lib/elput/elput_private.h
index 769d23c82d..d3297fad00 100644
--- a/src/lib/elput/elput_private.h
+++ b/src/lib/elput/elput_private.h
@@ -222,6 +222,7 @@ struct _Elput_Manager
    char *sid;
    const char *seat;
    unsigned int vt_num;
+   Ecore_Event_Handler *vt_hdlr;
 
    struct
      {