Touch and display driver subsystems reworked (and more) (#302)
- Refactored `TouchDevice`: it can now start/stop LVGL separately, and it has an optional `TouchDriver` interface - Refactored `DisplayDevice`: it can now start/stop LVGL separately, and it has an optional `DisplayDriver` interface - Updated all boards and drivers for above changes - LVGL can now be stopped and (re)started on the fly - Fixed issues with restarting Gui and Statusbar services - Refactored `Gui` service to be class and renamed `Gui` to `GuiService` - Fixed `Statusbar` service: forgot to deregister one of the icons - Updated `esp_lcd_st7701` to v1.1.3 - `lv_textarea_create()` now automatically registers the hardware keyboard hooks (by wrapping the function) - Fixed and updated `tactility.py` - Cleanup of a lot of code - `BootInitLvglBegin` and `BootInitLvglEnd` are replaced by `LvglStarted` and `LvglStopped`. - Introduced `tt::service::State` which is accessible via `tt::service::getState()` (and internally via `ServiceInstance`) - Started replacing `#define TAG` with `constexpr auto TAG = "..";`
This commit is contained in:
Ken Van Hoeylandt
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GitHub
GitHub
parent
15f4fbfdc6
commit
d875ade8cb
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#include "Tactility/service/gui/GuiService.h"
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#include "Tactility/lvgl/LvglSync.h"
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#include "Tactility/lvgl/Statusbar.h"
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#include "Tactility/lvgl/Style.h"
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#include "Tactility/service/loader/Loader.h"
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#include <Tactility/Tactility.h>
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#include <Tactility/app/AppInstance.h>
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#include <Tactility/service/ServiceRegistry.h>
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namespace tt::service::gui {
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extern const ServiceManifest manifest;
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constexpr const char* TAG = "gui";
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// region AppManifest
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void GuiService::onLoaderMessage(const void* message, TT_UNUSED void* context) {
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auto service = findService();
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if (service == nullptr) {
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return;
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}
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auto* event = static_cast<const loader::LoaderEvent*>(message);
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if (event->type == loader::LoaderEventTypeApplicationShowing) {
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auto app_instance = app::getCurrentAppContext();
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service->showApp(app_instance);
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} else if (event->type == loader::LoaderEventTypeApplicationHiding) {
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service->hideApp();
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}
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}
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int32_t GuiService::guiMain() {
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while (true) {
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uint32_t flags = Thread::awaitFlags(GUI_THREAD_FLAG_ALL, EventFlag::WaitAny, (uint32_t)portMAX_DELAY);
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// When service not started or starting -> exit
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State service_state = getState(manifest.id);
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if (service_state != State::Started && service_state != State::Starting) {
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break;
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}
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// Process and dispatch draw call
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if (flags & GUI_THREAD_FLAG_DRAW) {
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Thread::clearFlags(GUI_THREAD_FLAG_DRAW);
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auto service = findService();
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if (service != nullptr) {
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service->redraw();
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}
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}
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if (flags & GUI_THREAD_FLAG_EXIT) {
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Thread::clearFlags(GUI_THREAD_FLAG_EXIT);
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break;
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}
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}
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return 0;
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}
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lv_obj_t* GuiService::createAppViews(lv_obj_t* parent) {
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lv_obj_send_event(statusbarWidget, LV_EVENT_DRAW_MAIN, nullptr);
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lv_obj_t* child_container = lv_obj_create(parent);
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lv_obj_set_style_pad_all(child_container, 0, 0);
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lv_obj_set_width(child_container, LV_PCT(100));
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lv_obj_set_flex_grow(child_container, 1);
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if (softwareKeyboardIsEnabled()) {
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keyboard = lv_keyboard_create(parent);
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lv_obj_add_flag(keyboard, LV_OBJ_FLAG_HIDDEN);
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} else {
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keyboard = nullptr;
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}
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return child_container;
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}
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void GuiService::redraw() {
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// Lock GUI and LVGL
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lock();
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if (lvgl::lock(1000)) {
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lv_obj_clean(appRootWidget);
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if (appToRender != nullptr) {
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// Create a default group which adds all objects automatically,
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// and assign all indevs to it.
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// This enables navigation with limited input, such as encoder wheels.
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lv_group_t* group = lv_group_create();
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auto* indev = lv_indev_get_next(nullptr);
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while (indev) {
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lv_indev_set_group(indev, group);
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indev = lv_indev_get_next(indev);
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}
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lv_group_set_default(group);
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app::Flags flags = std::static_pointer_cast<app::AppInstance>(appToRender)->getFlags();
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if (flags.showStatusbar) {
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lv_obj_remove_flag(statusbarWidget, LV_OBJ_FLAG_HIDDEN);
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} else {
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lv_obj_add_flag(statusbarWidget, LV_OBJ_FLAG_HIDDEN);
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}
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lv_obj_t* container = createAppViews(appRootWidget);
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appToRender->getApp()->onShow(*appToRender, container);
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} else {
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TT_LOG_W(TAG, "nothing to draw");
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}
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// Unlock GUI and LVGL
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lvgl::unlock();
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} else {
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TT_LOG_E(TAG, LOG_MESSAGE_MUTEX_LOCK_FAILED_FMT, "LVGL");
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}
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unlock();
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}
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void GuiService::onStart(TT_UNUSED ServiceContext& service) {
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thread = new Thread(
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"gui",
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4096, // Last known minimum was 2800 for launching desktop
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[]() { return guiMain(); }
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);
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loader_pubsub_subscription = loader::getPubsub()->subscribe(&onLoaderMessage, nullptr);
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tt_check(lvgl::lock(1000 / portTICK_PERIOD_MS));
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keyboardGroup = lv_group_create();
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auto* screen_root = lv_screen_active();
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assert(screen_root != nullptr);
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lvgl::obj_set_style_bg_blacken(screen_root);
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lv_obj_t* vertical_container = lv_obj_create(screen_root);
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lv_obj_set_size(vertical_container, LV_PCT(100), LV_PCT(100));
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lv_obj_set_flex_flow(vertical_container, LV_FLEX_FLOW_COLUMN);
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lv_obj_set_style_pad_all(vertical_container, 0, 0);
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lv_obj_set_style_pad_gap(vertical_container, 0, 0);
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lvgl::obj_set_style_bg_blacken(vertical_container);
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statusbarWidget = lvgl::statusbar_create(vertical_container);
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auto* app_container = lv_obj_create(vertical_container);
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lv_obj_set_style_pad_all(app_container, 0, 0);
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lv_obj_set_style_border_width(app_container, 0, 0);
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lvgl::obj_set_style_bg_blacken(app_container);
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lv_obj_set_width(app_container, LV_PCT(100));
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lv_obj_set_flex_grow(app_container, 1);
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lv_obj_set_flex_flow(app_container, LV_FLEX_FLOW_COLUMN);
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appRootWidget = app_container;
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lvgl::unlock();
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isStarted = true;
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thread->setPriority(THREAD_PRIORITY_SERVICE);
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thread->start();
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}
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void GuiService::onStop(TT_UNUSED ServiceContext& service) {
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lock();
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loader::getPubsub()->unsubscribe(loader_pubsub_subscription);
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appToRender = nullptr;
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isStarted = false;
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ThreadId thread_id = thread->getId();
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Thread::setFlags(thread_id, GUI_THREAD_FLAG_EXIT);
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thread->join();
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delete thread;
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unlock();
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tt_check(lvgl::lock(1000 / portTICK_PERIOD_MS));
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lv_group_delete(keyboardGroup);
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lvgl::unlock();
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}
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void GuiService::requestDraw() {
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ThreadId thread_id = thread->getId();
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Thread::setFlags(thread_id, GUI_THREAD_FLAG_DRAW);
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}
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void GuiService::showApp(std::shared_ptr<app::AppContext> app) {
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lock();
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if (!isStarted) {
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TT_LOG_W(TAG, "Failed to show app %s: GUI not started", app->getManifest().id.c_str());
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} else {
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// Ensure previous app triggers onHide() logic
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if (appToRender != nullptr) {
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hideApp();
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}
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appToRender = std::move(app);
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}
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unlock();
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requestDraw();
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}
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void GuiService::hideApp() {
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lock();
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if (!isStarted) {
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TT_LOG_W(TAG, "Failed to hide app: GUI not started");
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} else if (appToRender == nullptr) {
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TT_LOG_W(TAG, "hideApp() called but no app is currently shown");
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} else {
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// We must lock the LVGL port, because the viewport hide callbacks
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// might call LVGL APIs (e.g. to remove the keyboard from the screen root)
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tt_check(lvgl::lock(configTICK_RATE_HZ));
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appToRender->getApp()->onHide(*appToRender);
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lvgl::unlock();
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appToRender = nullptr;
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}
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unlock();
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}
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std::shared_ptr<GuiService> findService() {
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return std::static_pointer_cast<GuiService>(
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findServiceById(manifest.id)
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);
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}
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extern const ServiceManifest manifest = {
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.id = "Gui",
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.createService = create<GuiService>
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};
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// endregion
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} // namespace
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