/usr/include/vlc/libvlc_dialog.h is in libvlc-dev 3.0.1-3build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* libvlc_dialog.h: libvlc dialog API
*****************************************************************************
* Copyright © 2016 VLC authors and VideoLAN
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifndef LIBVLC_DIALOG_H
#define LIBVLC_DIALOG_H 1
#include <stdbool.h>
# ifdef __cplusplus
extern "C" {
# endif
typedef struct libvlc_dialog_id libvlc_dialog_id;
/**
* @defgroup libvlc_dialog LibVLC dialog
* @ingroup libvlc
* @{
* @file
* LibVLC dialog external API
*/
typedef enum libvlc_dialog_question_type
{
LIBVLC_DIALOG_QUESTION_NORMAL,
LIBVLC_DIALOG_QUESTION_WARNING,
LIBVLC_DIALOG_QUESTION_CRITICAL,
} libvlc_dialog_question_type;
/**
* Dialog callbacks to be implemented
*/
typedef struct libvlc_dialog_cbs
{
/**
* Called when an error message needs to be displayed
*
* @param p_data opaque pointer for the callback
* @param psz_title title of the dialog
* @param psz_text text of the dialog
*/
void (*pf_display_error)(void *p_data, const char *psz_title,
const char *psz_text);
/**
* Called when a login dialog needs to be displayed
*
* You can interact with this dialog by calling libvlc_dialog_post_login()
* to post an answer or libvlc_dialog_dismiss() to cancel this dialog.
*
* @note to receive this callback, libvlc_dialog_cbs.pf_cancel should not be
* NULL.
*
* @param p_data opaque pointer for the callback
* @param p_id id used to interact with the dialog
* @param psz_title title of the dialog
* @param psz_text text of the dialog
* @param psz_default_username user name that should be set on the user form
* @param b_ask_store if true, ask the user if he wants to save the
* credentials
*/
void (*pf_display_login)(void *p_data, libvlc_dialog_id *p_id,
const char *psz_title, const char *psz_text,
const char *psz_default_username,
bool b_ask_store);
/**
* Called when a question dialog needs to be displayed
*
* You can interact with this dialog by calling libvlc_dialog_post_action()
* to post an answer or libvlc_dialog_dismiss() to cancel this dialog.
*
* @note to receive this callback, libvlc_dialog_cbs.pf_cancel should not be
* NULL.
*
* @param p_data opaque pointer for the callback
* @param p_id id used to interact with the dialog
* @param psz_title title of the dialog
* @param psz_text text of the dialog
* @param i_type question type (or severity) of the dialog
* @param psz_cancel text of the cancel button
* @param psz_action1 text of the first button, if NULL, don't display this
* button
* @param psz_action2 text of the second button, if NULL, don't display
* this button
*/
void (*pf_display_question)(void *p_data, libvlc_dialog_id *p_id,
const char *psz_title, const char *psz_text,
libvlc_dialog_question_type i_type,
const char *psz_cancel, const char *psz_action1,
const char *psz_action2);
/**
* Called when a progress dialog needs to be displayed
*
* If cancellable (psz_cancel != NULL), you can cancel this dialog by
* calling libvlc_dialog_dismiss()
*
* @note to receive this callback, libvlc_dialog_cbs.pf_cancel and
* libvlc_dialog_cbs.pf_update_progress should not be NULL.
*
* @param p_data opaque pointer for the callback
* @param p_id id used to interact with the dialog
* @param psz_title title of the dialog
* @param psz_text text of the dialog
* @param b_indeterminate true if the progress dialog is indeterminate
* @param f_position initial position of the progress bar (between 0.0 and
* 1.0)
* @param psz_cancel text of the cancel button, if NULL the dialog is not
* cancellable
*/
void (*pf_display_progress)(void *p_data, libvlc_dialog_id *p_id,
const char *psz_title, const char *psz_text,
bool b_indeterminate, float f_position,
const char *psz_cancel);
/**
* Called when a displayed dialog needs to be cancelled
*
* The implementation must call libvlc_dialog_dismiss() to really release
* the dialog.
*
* @param p_data opaque pointer for the callback
* @param p_id id of the dialog
*/
void (*pf_cancel)(void *p_data, libvlc_dialog_id *p_id);
/**
* Called when a progress dialog needs to be updated
*
* @param p_data opaque pointer for the callback
* @param p_id id of the dialog
* @param f_position osition of the progress bar (between 0.0 and 1.0)
* @param psz_text new text of the progress dialog
*/
void (*pf_update_progress)(void *p_data, libvlc_dialog_id *p_id,
float f_position, const char *psz_text);
} libvlc_dialog_cbs;
/**
* Register callbacks in order to handle VLC dialogs
*
* @version LibVLC 3.0.0 and later.
*
* @param p_cbs a pointer to callbacks, or NULL to unregister callbacks.
* @param p_data opaque pointer for the callback
*/
LIBVLC_API void
libvlc_dialog_set_callbacks(libvlc_instance_t *p_instance,
const libvlc_dialog_cbs *p_cbs, void *p_data);
/**
* Associate an opaque pointer with the dialog id
*
* @version LibVLC 3.0.0 and later.
*/
LIBVLC_API void
libvlc_dialog_set_context(libvlc_dialog_id *p_id, void *p_context);
/**
* Return the opaque pointer associated with the dialog id
*
* @version LibVLC 3.0.0 and later.
*/
LIBVLC_API void *
libvlc_dialog_get_context(libvlc_dialog_id *p_id);
/**
* Post a login answer
*
* After this call, p_id won't be valid anymore
*
* @see libvlc_dialog_cbs.pf_display_login
*
* @version LibVLC 3.0.0 and later.
*
* @param p_id id of the dialog
* @param psz_username valid and non empty string
* @param psz_password valid string (can be empty)
* @param b_store if true, store the credentials
* @return 0 on success, or -1 on error
*/
LIBVLC_API int
libvlc_dialog_post_login(libvlc_dialog_id *p_id, const char *psz_username,
const char *psz_password, bool b_store);
/**
* Post a question answer
*
* After this call, p_id won't be valid anymore
*
* @see libvlc_dialog_cbs.pf_display_question
*
* @version LibVLC 3.0.0 and later.
*
* @param p_id id of the dialog
* @param i_action 1 for action1, 2 for action2
* @return 0 on success, or -1 on error
*/
LIBVLC_API int
libvlc_dialog_post_action(libvlc_dialog_id *p_id, int i_action);
/**
* Dismiss a dialog
*
* After this call, p_id won't be valid anymore
*
* @see libvlc_dialog_cbs.pf_cancel
*
* @version LibVLC 3.0.0 and later.
*
* @param p_id id of the dialog
* @return 0 on success, or -1 on error
*/
LIBVLC_API int
libvlc_dialog_dismiss(libvlc_dialog_id *p_id);
/** @} */
# ifdef __cplusplus
}
# endif
#endif /* LIBVLC_DIALOG_H */
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