mirror of
https://github.com/ByteWelder/Tactility.git
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9f721e6655
* **New Features** * Added a standalone LVGL module and enabled LVGL support in the simulator for richer local UI testing. * **Refactor** * HAL and LVGL split into distinct modules; startup and device attach/detach flows reorganized for clearer lifecycle management. * Public APIs tightened with clearer nullability/documentation. * **Bug Fixes** * More consistent LVGL start/stop and device attach/detach behavior for improved stability.
122 lines
4.8 KiB
C
122 lines
4.8 KiB
C
#pragma once
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#include <tt_bundle.h>
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#include <stdio.h>
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#include <stdbool.h>
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#include <lvgl.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef void* AppHandle;
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/** Important: These values must map to tt::app::Result values exactly */
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typedef enum {
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APP_RESULT_OK = 0,
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APP_RESULT_CANCELLED = 1,
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APP_RESULT_ERROR = 2
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} AppResult;
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typedef unsigned int AppLaunchId;
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/** Important: These function types must map to t::app types exactly. All void* data is nullable. */
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typedef void* (*AppCreateData)();
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typedef void (*AppDestroyData)(void* data);
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typedef void (*AppOnCreate)(AppHandle app, void* data);
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typedef void (*AppOnDestroy)(AppHandle app, void* data);
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typedef void (*AppOnShow)(AppHandle app, void* data, lv_obj_t* parent);
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typedef void (*AppOnHide)(AppHandle app, void* data);
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typedef void (*AppOnResult)(AppHandle app, void* data, AppLaunchId launchId, AppResult result, BundleHandle resultData);
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/** All callback types are nullable */
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typedef struct {
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/** The application can allocate data to re-use later (e.g. struct with state) */
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AppCreateData createData;
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/** If createData is specified, this one must be specified too */
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AppDestroyData destroyData;
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/** Called when the app is launched (started) */
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AppOnCreate onCreate;
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/** Called when the app is exited (stopped) */
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AppOnDestroy onDestroy;
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/** Called when the app is about to be shown to the user (app becomes visible) */
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AppOnShow onShow;
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/** Called when the app is about to be invisible to the user (e.g. other app was launched by this app, and this app goes to the background) */
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AppOnHide onHide;
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/** Called when the app receives a result after launching another app */
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AppOnResult onResult;
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} AppRegistration;
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/** This is used to register the manifest of an external app. */
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void tt_app_register(const AppRegistration app);
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/** @return the bundle that belongs to this application, or null if it wasn't started with parameters. */
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BundleHandle tt_app_get_parameters(AppHandle handle);
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/**
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* Set the result before closing an app.
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* The result and bundle are passed along to the app that launched this app, when this app is closed.
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* @param[in] handle the app handle to set the result for
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* @param[in] result the result state to set
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* @param[in] bundle the result bundle to set (can be null)
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*/
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void tt_app_set_result(AppHandle handle, AppResult result, BundleHandle bundle);
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/** @return true if a result was set for this app context */
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bool tt_app_has_result(AppHandle handle);
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/** Get the path to the user data directory for this app.
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* The app can store user-specific (mutable) data in there such as app settings.
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* @param[in] handle the app handle
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* @param[out] buffer the output buffer (recommended size is 256 bytes)
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* @param[inout] size used as input for maximum buffer size (including null terminator) and is set with the path string length by this function
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*/
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void tt_app_get_user_data_path(AppHandle handle, char* buffer, size_t* size);
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/** Resolve a child path in the user directory of this app.
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* The app can store user-specific (mutable) data in there such as app settings.
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* @param[in] handle the app handle
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* @param[in] childPath the child path to resolve
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* @param[out] buffer the output buffer (recommended size is 256 bytes)
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* @param[inout] size used as input for maximum buffer size (including null terminator) and is set with the path string length by this function
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*/
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void tt_app_get_user_data_child_path(AppHandle handle, const char* childPath, char* buffer, size_t* size);
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/** Get the path to the assets directory of this app.
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* The content in this path should be treated as read-only.
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* @param[in] handle the app handle
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* @param[out] buffer the output buffer (recommended size is 256 bytes)
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* @param[inout] size used as input for maximum buffer size (including null terminator) and is set with the path string length by this function
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*/
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void tt_app_get_assets_path(AppHandle handle, char* buffer, size_t* size);
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/** Resolve a child path in the assets directory of this app.
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* The content in this path should be treated as read-only.
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* @param[in] handle the app handle
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* @param[in] childPath the child path to resolve
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* @param[out] buffer the output buffer (recommended size is 256 bytes)
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* @param[inout] size used as input for maximum buffer size (including null terminator) and is set with the path string length by this function
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*/
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void tt_app_get_assets_child_path(AppHandle handle, const char* childPath, char* buffer, size_t* size);
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/**
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* Start an app by id.
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* @param[in] appId the app manifest id
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*/
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void tt_app_start(const char* appId);
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/** Stop the currently running app */
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void tt_app_stop();
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/**
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* Start an app by id and bundle.
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* @param[in] appId the app manifest id
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* @param[in] parameters the parameters to pass onto the starting app
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*/
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void tt_app_start_with_bundle(const char* appId, BundleHandle parameters);
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#ifdef __cplusplus
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}
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#endif |