sliding_text_wd/src/pkjs/pebble-js-app.js

var APPID = 'd54c895c6e05649ee2ddef0d64532069';

var xhrRequest = function (url, type, callback) {
  var xhr = new XMLHttpRequest();
  xhr.onload = function () {
    callback(this.responseText);
  };
  xhr.open(type, url);
  xhr.send();
};

Pebble.addEventListener('showConfiguration', function() {
  var url = 'http://singleserveapps.github.io/sliding-text-wd-config/index.html';

	console.log('Showing configuration page: ' + url);

	Pebble.openURL(url);
});

Pebble.addEventListener('webviewclosed', function(e) {
	var configData = JSON.parse(decodeURIComponent(e.response));

	console.log('Configuration page returned: ' + JSON.stringify(configData));

	if (configData.backgroundColor) {
      console.log("backgroundColor: %d", parseInt(configData.backgroundColor, 16));  
      console.log("textColor: %d", parseInt(configData.textColor, 16));  
      console.log("weatherFrequency: %d", parseInt(configData.weatherFrequency, 10));
      console.log("useCelsius: %d", parseInt(configData.useCelsius, 2));
      console.log("displayPrefix: %d", parseInt(configData.displayPrefix, 2));
      console.log("weatherDateAlignment %s", parseInt(configData.weatherDateAlignment, 10));
      console.log("hourMinutesAlignment %s", parseInt(configData.hourMinutesAlignment, 10));
    
      // Assemble dictionary using our keys
      var options_dictionary = {
        "KEY_BACKGROUND_COLOR": parseInt(configData.backgroundColor, 16),
        "KEY_TEXT_COLOR": parseInt(configData.textColor, 16),
        "KEY_WEATHER_FREQUENCY": parseInt(configData.weatherFrequency, 10),
        "KEY_USE_CELSIUS": parseInt(configData.useCelsius, 2),
        "KEY_DISPLAY_O_PREFIX": parseInt(configData.displayPrefix, 2),
        "KEY_WEATHERDATE_ALIGNMENT": parseInt(configData.weatherDateAlignment, 10),
        "KEY_HOURMINUTES_ALIGNMENT": parseInt(configData.hourMinutesAlignment, 10)
      };
    
      //getWeather();

      // Send to Pebble
      Pebble.sendAppMessage(options_dictionary,
        function(e) {
          console.log("webviewclosed: Watchface options successfully sent to Pebble");
        },
        function(e) {
          console.log("webviewclosed: Error sending watchface options info to Pebble!");
        }
      );
	}
});

function locationSuccess(pos) {
  // Construct URL
  var url = 'http://api.openweathermap.org/data/2.5/weather?lat=' + pos.coords.latitude + '&lon=' + pos.coords.longitude + '&APPID=' + APPID;
  
  console.log("Lat is " + pos.coords.latitude);
  console.log("Lon is " + pos.coords.longitude);

  try {
    // Send request to forecast.io
    xhrRequest(url, 'GET', 
      function(responseText) {
        console.log("Parsing JSON");
        // responseText contains a JSON object with weather info
        var json = JSON.parse(responseText);
        console.log(JSON.parse(responseText));
  
        var temperature = Math.round(((json.main.temp - 273.15) * 1.8) + 32);
        console.log("Temperature in Fahrenheit is " + temperature);
        
        var temperaturec = Math.round(json.main.temp - 273.15);
        console.log("Temperature in Celsius is " + temperaturec);
  
        // Conditions
        var conditions = json.weather[0].main;      
        console.log("Conditions are " + conditions);
  
        // Assemble dictionary using our keys
        var weather_dictionary = {
          "KEY_TEMPERATURE": temperature,
          "KEY_TEMPERATURE_IN_C": temperaturec,
          "KEY_CONDITIONS": conditions,
        };
  
        // Send to Pebble
        Pebble.sendAppMessage(weather_dictionary,
          function(e) {
            console.log("locationSuccess: Weather info sent to Pebble successfully!");
          },
          function(e) {
            console.log("locationSuccess: Error sending weather info to Pebble!");
          }
        );
      }      
    );    
  }
  catch (exception){
    console.log(JSON.stringify(exception));
  }
}

function locationError(err) {
  console.log('Error requesting location!');
}

function getWeather() {
  navigator.geolocation.getCurrentPosition(
    locationSuccess,
    locationError,
    {timeout: 15000, maximumAge: 120000}
  );
}

Pebble.addEventListener('ready', function() {
  console.log('PebbleKit JS Ready!');
  
  //getWeather();
});

Pebble.addEventListener('appmessage',
  function(e) {
  console.log("Got message: " + JSON.stringify(e));

    if (e.payload.KEY_GET_WEATHER) {
      console.log('AppMessage received! Updating weather.');
      getWeather();
    }
  }
);