dialog: add new dialog API

- vlc_dialog_wait_question will replace dialog_Question

- vlc_dialog_wait_question with i_type == VLC_DIALOG_QUESTION_CRITICAL and
  without action1/action2 will replace dialog_FatalWait

- vlc_dialog_wait_login will replace dialog_Login

- vlc_dialog_display_progress will replace dialog_Progress

- dialog_Fatal is replaced by vlc_dialog_display_error

- vlc_dialog_display_error will replace dialog_Fatal

- vlc_ext_dialog_update will repalace dialog_ExtensionUpdate

- vlc_dialog_wait_question and vlc_dialog_wait_login are interruptible via
  vlc_interrupt.

- Nothing prevents to have more than one dialog type displayed at a time.

include/vlc_objects.h

@@ -41,6 +41,8 @@ struct vlc_object_t
     VLC_COMMON_MEMBERS
 };
 
+typedef struct vlc_dialog_provider vlc_dialog_provider;
+
 /*****************************************************************************
  * Prototypes
  *****************************************************************************/

src/libvlc.c

@@ -61,6 +61,7 @@
 #include <vlc_interface.h>
 
 #include <vlc_charset.h>
+#include <vlc_dialog.h>
 #include <vlc_fs.h>
 #include <vlc_cpu.h>
 #include <vlc_url.h>
@@ -235,6 +236,14 @@ int libvlc_InternalInit( libvlc_int_t *p_libvlc, int i_argc,
     }
 #endif
 
+    priv->p_dialog_provider = vlc_dialog_provider_new();
+    if( priv->p_dialog_provider == NULL )
+    {
+        vlc_LogDeinit (p_libvlc);
+        module_EndBank (true);
+        return VLC_ENOMEM;
+    }
+
 /* FIXME: could be replaced by using Unix sockets */
 #ifdef HAVE_DBUS
 
@@ -503,6 +512,8 @@ void libvlc_InternalCleanup( libvlc_int_t *p_libvlc )
     libvlc_Quit( p_libvlc );
     intf_DestroyAll( p_libvlc );
 
+    vlc_dialog_provider_release( priv->p_dialog_provider );
+
 #ifdef ENABLE_VLM
     /* Destroy VLM if created in libvlc_InternalInit */
     if( priv->p_vlm )

src/libvlc.h

@@ -138,6 +138,8 @@ module_t *module_find_by_shortcut (const char *psz_shortcut);
 /**
  * Private LibVLC instance data.
  */
+typedef struct vlc_dialog_provider vlc_dialog_provider;
+
 typedef struct libvlc_priv_t
 {
     libvlc_int_t       public_data;
@@ -149,6 +151,7 @@ typedef struct libvlc_priv_t
     vlc_logger_t      *logger;
     vlm_t             *p_vlm;  ///< the VLM singleton (or NULL)
     vlc_object_t      *p_legacy_dialog_provider; ///< dialog provider
+    vlc_dialog_provider *p_dialog_provider; ///< dialog provider
     struct playlist_t *playlist; ///< Playlist for interfaces
     struct playlist_preparser_t *parser; ///< Input item meta data handler
     struct vlc_actions *actions; ///< Hotkeys handler

src/libvlccore.sym

@@ -526,6 +526,29 @@ vlc_credential_init
 vlc_credential_clean
 vlc_credential_get
 vlc_credential_store
+vlc_dialog_display_error
+vlc_dialog_display_error_va
+vlc_dialog_display_progress
+vlc_dialog_display_progress_va
+vlc_dialog_id_dismiss
+vlc_dialog_id_get_context
+vlc_dialog_id_post_action
+vlc_dialog_id_post_login
+vlc_dialog_id_set_context
+vlc_dialog_is_cancelled
+vlc_dialog_provider_new
+vlc_dialog_provider_release
+vlc_dialog_provider_set_callbacks
+vlc_dialog_provider_set_ext_callback
+vlc_dialog_release
+vlc_dialog_update_progress
+vlc_dialog_update_progress_text
+vlc_dialog_update_progress_text_va
+vlc_dialog_wait_login
+vlc_dialog_wait_login_va
+vlc_dialog_wait_question
+vlc_dialog_wait_question_va
+vlc_ext_dialog_update
 vlc_sem_init
 vlc_sem_destroy
 vlc_sem_post