unleashed-firmware/applications/services/gui/view_holder.h
MX bf6c6c231f
[FL-3841] FuriEventLoop Pt.2 (#3703)
* Abstract primitive type from main logic in FuriEventLoop
* Remove message_queue_i.h
* Add stream buffer support for event loop
* Add semaphore support for event loop
* Add temporary unit test workaround
* Make the linter happy
* Add mutex support for event loop
* Implement event subscription and unsubscription while the event loop is running
* Implement edge events
* Fix leftover logical errors
* Add event loop timer example application
* Implement flag-based edge trigger and one-shot mode
* Add event loop mutex example application
* Only notify the event loop if stream buffer is at or above its trigger level
* Reformat comments
* Add event loop stream buffer example application
* Add event loop multiple elements example application
* Improve event loop flag names
* Remove redundant signal handler as it is already handled by the event loop
* Refactor Power service, improve ViewHolder
* Use ViewHolder instead of ViewDispatcher in About app
* Enable ViewDispatcher queue on construction, deprecate view_dispatcher_enable_queue()
* Remove all invocations of view_dispatcher_enable_queue()
* Remove app-scened-template
* Remove missing library from target.json
* Port Accessor app to ViewHolder
* Make the linter happy
* Add example_view_holder application, update ViewHolder docs
* Add example_view_dispatcher application, update ViewDispatcher docs
* Replace FuriSemaphore with FuriApiLock, remove workaround delay
* Fix logical error
* Fix another logical error
* Use the sources directive to speed up compilation
* Use constant define macro
* Improve FuriEventLoop documentation
* Improve FuriEventLoop documentation once more
* Bump API Version
* Gui: remove redundant checks from ViewDispatcher
* Gui: remove dead ifs from ViewDispatcher

Co-authored-by: Silent <CookiePLMonster@users.noreply.github.com>
Co-authored-by: hedger <hedger@users.noreply.github.com>
Co-authored-by: あく <alleteam@gmail.com>
2024-08-10 14:32:27 +03:00

127 lines
3.1 KiB
C

/**
* @file view_holder.h
* @brief GUI: ViewHolder API
*
* ViewHolder is used to connect a single View to a Gui instance. This is useful in smaller applications
* with a simple user interface. If advanced view switching capabilites are required, consider using ViewDispatcher instead.
*
* @warning Views added to a ViewHolder MUST NOT be in a ViewStack at the same time.
*/
#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 Will be called from the GUI thread
*/
typedef void (*BackCallback)(void* back_context);
/**
* @brief Allocate ViewHolder
* @return pointer to ViewHolder instance
*/
ViewHolder* view_holder_alloc(void);
/**
* @brief Free ViewHolder and call Free callback
*
* @warning The current view must be unset prior to freeing a ViewHolder instance.
*
* @param view_holder pointer to ViewHolder
*/
void view_holder_free(ViewHolder* view_holder);
/**
* @brief Set view for ViewHolder
*
* Pass NULL as the view parameter to unset the current view.
*
* @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);
/**
* @brief Set the back key callback.
*
* The callback function will be called if the user has pressed the Back key
* and the current view did not handle this event.
*
* @param view_holder ViewHolder instance
* @param back_callback pointer to the callback function
* @param back_context pointer to a user-specific object, can be NULL
*/
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 View Update Handler
*
* @param view View Instance
* @param context ViewHolder instance
*/
void view_holder_update(View* view, void* context);
/**
* @brief Send ViewPort of this ViewHolder instance to front
*
* @param view_holder ViewHolder instance
*/
void view_holder_send_to_front(ViewHolder* view_holder);
/**
* @brief Send ViewPort of this ViewHolder instance to back
*
* @param view_holder ViewHolder instance
*/
void view_holder_send_to_back(ViewHolder* view_holder);
#ifdef __cplusplus
}
#endif