unleashed-firmware/applications/sd-filesystem/view_holder.h
あく 37131dbe12
[FL-1092] Make View reusable outside of dispatcher (#396)
* View: replace direct View to ViewDispatcher link with callback. ViewDispatcher: update View usage. ViewHandler: update View usage, handle update signal.
2021-04-01 15:03:02 +03:00

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2.1 KiB
C

#pragma once
#include <gui/view.h>
#include <gui/gui.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct ViewHolder ViewHolder;
/**
* @brief Free callback type
*/
typedef void (*FreeCallback)(void* free_context);
/**
* @brief Back callback type
* @warning comes from GUI thread
*/
typedef void (*BackCallback)(void* back_context);
/**
* @brief Allocate ViewHolder
* @return pointer to ViewHolder instance
*/
ViewHolder* view_holder_alloc();
/**
* @brief Free ViewHolder and call Free callback
* @param view_holder pointer to ViewHolder
*/
void view_holder_free(ViewHolder* view_holder);
/**
* @brief Set view for ViewHolder
*
* @param view_holder ViewHolder instance
* @param view View instance
*/
void view_holder_set_view(ViewHolder* view_holder, View* view);
/**
* @brief Set Free callback
*
* @param view_holder ViewHolder instance
* @param free_callback callback pointer
* @param free_context callback context
*/
void view_holder_set_free_callback(
ViewHolder* view_holder,
FreeCallback free_callback,
void* free_context);
/**
* @brief Free callback context getter. Useful if your Free callback is a module destructor, so you can get an instance of the module using this method.
*
* @param view_holder ViewHolder instance
* @return void* free callback context
*/
void* view_holder_get_free_context(ViewHolder* view_holder);
void view_holder_set_back_callback(
ViewHolder* view_holder,
BackCallback back_callback,
void* back_context);
/**
* @brief Attach ViewHolder to GUI
*
* @param view_holder ViewHolder instance
* @param gui GUI instance to attach to
*/
void view_holder_attach_to_gui(ViewHolder* view_holder, Gui* gui);
/**
* @brief Enable view processing
*
* @param view_holder
*/
void view_holder_start(ViewHolder* view_holder);
/**
* @brief Disable view processing
*
* @param view_holder
*/
void view_holder_stop(ViewHolder* view_holder);
/** View Update Handler
* @param view, View Instance
* @param context, ViewHolder instance
*/
void view_holder_update(View* view, void* context);
#ifdef __cplusplus
}
#endif