pebble-peek-test

A way to test Timeline Peek events in CloudPebble.

As I'm writing this there is no way to test Timeline Peek events in CloudPebble, so I wrote an emulator using the same callback handlers to emulate the behaviour of unobstructed area change events.

The resulting animation it not exactly the same as with real events but it is a pretty good approximation.

To use the peek test you have to add the Layer returned by peek_test_init to your root layer. This will be the layer that shows the peek. The peek will appear/disappear at the specified interval.

Instead of layer_get_unobstructed_bounds you have to use peek_test_get_unobstructed_bounds. The subscribe and unsubscribe functions just have an added peek_test_ in front.

You can use the PEEKL_TEST define to determine whether or not the peek test is used. The define is set if pebble-peek-test.h is included. When used correctly you can easily switch between emulation and real events by just commenting out the pebble-peek-test.h include.

Here are some images of what the peeks look like (more: http://imgur.com/a/yZ75V):

The one in the middle shows real Timeline Peek events, the others are emulated.

Usage example:

#include <pebble-peek-test/pebble-peek-test.h>

GSize available_screen;

static void update_layers() {
  /* do something based on available_screen */
}
  
static void unobstructed_area_will_change(GRect final_unobstructed_screen_area, void *context) {
  APP_LOG(APP_LOG_LEVEL_INFO, "will change = %d/%d", final_unobstructed_screen_area.size.w, final_unobstructed_screen_area.size.h);
}
  
static void unobstructed_area_change(AnimationProgress progress, void* context) {
  APP_LOG(APP_LOG_LEVEL_INFO, "change = %ld%%", (progress*100)/ANIMATION_NORMALIZED_MAX);
#ifdef PEEK_TEST
  GRect unobstructed_area = peek_test_get_unobstructed_bounds();
#else // PEEK_TEST
  GRect unobstructed_area = layer_get_unobstructed_bounds(window_get_root_layer(my_window));
#endif // PEEK_TEST
  available_screen = unobstructed_area.size;
  update_layers();
}
  
static void unobstructed_area_did_change(void* context) {
  APP_LOG(APP_LOG_LEVEL_INFO, "did_change");
}

static void my_window_load(Window *window) {
  Layer* root_layer = window_get_root_layer(window);
  GRect root_layer_bounds = layer_get_bounds(root_layer);
  available_screen = layer_get_unobstructed_bounds(root_layer).size;
  
  UnobstructedAreaHandlers handlers = {
    .will_change = unobstructed_area_will_change,
    .change = unobstructed_area_change,
    .did_change = unobstructed_area_did_change
  };
#ifdef PEEK_TEST
  static Layer* peek_layer;
  peek_layer = peek_test_init(root_layer_bounds, 5000);
  layer_add_child(root_layer, peek_layer);
  peek_test_unobstructed_area_service_subscribe(handlers, NULL);
#else // PEEK_TEST
  unobstructed_area_service_subscribe(handlers, NULL);
#endif // PEEK_TEST
  
  update_layers();
}
  
static void my_window_unload(Window *window) {
#ifdef PEEK_TEST
  peek_test_unobstructed_area_service_unsubscribe();
#else // PEEK_TEST
  unobstructed_area_service_unsubscribe();
#endif // PEEK_TEST
}