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72 lines
2.7 KiB
C
72 lines
2.7 KiB
C
/*
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* Copyright 2024 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "app_focus_service.h"
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#include "event_service_client.h"
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#include "process_state/app_state/app_state.h"
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#include "services/common/event_service.h"
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static void prv_focus_event_handler(PebbleEvent *e, void *context) {
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AppFocusState *state = app_state_get_app_focus_state();
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bool in_focus = e->app_focus.in_focus;
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if (e->type == PEBBLE_APP_WILL_CHANGE_FOCUS_EVENT &&
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state->handlers.will_focus) {
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state->handlers.will_focus(in_focus);
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} else if (e->type == PEBBLE_APP_DID_CHANGE_FOCUS_EVENT &&
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state->handlers.did_focus) {
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state->handlers.did_focus(in_focus);
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}
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}
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void app_focus_service_subscribe_handlers(AppFocusHandlers handlers) {
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AppFocusState *state = app_state_get_app_focus_state();
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app_focus_service_unsubscribe();
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if (handlers.did_focus) {
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// NOTE: the individual fields of state->did_focus_info are assigned
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// to instead of writing
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// state->did_focus_info = (EventServiceInfo) { ... }
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// as the latter would zero out the ListNode embedded in the struct.
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// Doing so would corrupt the events list if the event was already
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// subscribed.
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state->did_focus_info.type = PEBBLE_APP_DID_CHANGE_FOCUS_EVENT;
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state->did_focus_info.handler = prv_focus_event_handler;
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event_service_client_subscribe(&state->did_focus_info);
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}
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if (handlers.will_focus) {
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state->will_focus_info.type = PEBBLE_APP_WILL_CHANGE_FOCUS_EVENT;
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state->will_focus_info.handler = prv_focus_event_handler;
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event_service_client_subscribe(&state->will_focus_info);
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}
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state->handlers = handlers;
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}
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void app_focus_service_subscribe(AppFocusHandler handler) {
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AppFocusHandlers handlers = (AppFocusHandlers) { .will_focus = handler };
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app_focus_service_subscribe_handlers(handlers);
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}
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void app_focus_service_unsubscribe(void) {
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AppFocusState *state = app_state_get_app_focus_state();
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if (state->handlers.will_focus) {
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event_service_client_unsubscribe(&state->will_focus_info);
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}
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if (state->handlers.did_focus) {
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event_service_client_unsubscribe(&state->did_focus_info);
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}
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state->handlers = (AppFocusHandlers) {};
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}
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