App accessor: init (#433)

applications/accessor/accessor-view-manager.cpp

@@ -0,0 +1,79 @@
+#include "accessor-view-manager.h"
+#include "accessor-event.h"
+#include <callback-connector.h>
+
+AccessorAppViewManager::AccessorAppViewManager() {
+    event_queue = osMessageQueueNew(10, sizeof(AccessorEvent), NULL);
+
+    view_dispatcher = view_dispatcher_alloc();
+    auto callback = cbc::obtain_connector(this, &AccessorAppViewManager::previous_view_callback);
+
+    // allocate views
+    submenu = submenu_alloc();
+    add_view(ViewType::Submenu, submenu_get_view(submenu));
+
+    popup = popup_alloc();
+    add_view(ViewType::Popup, popup_get_view(popup));
+
+    gui = static_cast<Gui*>(furi_record_open("gui"));
+    view_dispatcher_attach_to_gui(view_dispatcher, gui, ViewDispatcherTypeFullscreen);
+
+    // set previous view callback for all views
+    view_set_previous_callback(submenu_get_view(submenu), callback);
+    view_set_previous_callback(popup_get_view(popup), callback);
+}
+
+AccessorAppViewManager::~AccessorAppViewManager() {
+    // remove views
+    view_dispatcher_remove_view(
+        view_dispatcher, static_cast<uint32_t>(AccessorAppViewManager::ViewType::Submenu));
+    view_dispatcher_remove_view(
+        view_dispatcher, static_cast<uint32_t>(AccessorAppViewManager::ViewType::Popup));
+
+    // free view modules
+    submenu_free(submenu);
+    popup_free(popup);
+
+    // free dispatcher
+    view_dispatcher_free(view_dispatcher);
+
+    // free event queue
+    osMessageQueueDelete(event_queue);
+}
+
+void AccessorAppViewManager::switch_to(ViewType type) {
+    view_dispatcher_switch_to_view(view_dispatcher, static_cast<uint32_t>(type));
+}
+
+Submenu* AccessorAppViewManager::get_submenu() {
+    return submenu;
+}
+
+Popup* AccessorAppViewManager::get_popup() {
+    return popup;
+}
+
+void AccessorAppViewManager::receive_event(AccessorEvent* event) {
+    if(osMessageQueueGet(event_queue, event, NULL, 100) != osOK) {
+        event->type = AccessorEvent::Type::Tick;
+    }
+}
+
+void AccessorAppViewManager::send_event(AccessorEvent* event) {
+    osStatus_t result = osMessageQueuePut(event_queue, event, 0, 0);
+    furi_check(result == osOK);
+}
+
+uint32_t AccessorAppViewManager::previous_view_callback(void* context) {
+    if(event_queue != NULL) {
+        AccessorEvent event;
+        event.type = AccessorEvent::Type::Back;
+        send_event(&event);
+    }
+
+    return VIEW_IGNORE;
+}
+
+void AccessorAppViewManager::add_view(ViewType view_type, View* view) {
+    view_dispatcher_add_view(view_dispatcher, static_cast<uint32_t>(view_type), view);
+}