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/** * Plugin: jquery.zWeatherFeed * * Version: 1.2.0 * (c) Copyright 2011-2012, Zazar Ltd * * Description: jQuery plugin for display of Yahoo! Weather feeds * * History: * 1.2.0 - Added forecast data option * 1.1.0 - Added user callback function * New option to use WOEID identifiers * New day/night CSS class for feed items * Updated full forecast link to feed link location * 1.0.3 - Changed full forecast link to Weather Channel due to invalid Yahoo! link Add 'linktarget' option for forecast link * 1.0.2 - Correction to options / link * 1.0.1 - Added hourly caching to YQL to avoid rate limits * Uses Weather Channel location ID and not Yahoo WOEID * Displays day or night background images * */ (function($){ $.fn.weatherfeed = function(locations, options, fn) { // Set plugin defaults var defaults = { unit: 'c', image: true, country: false, highlow: true, wind: true, humidity: false, visibility: false, sunrise: false, sunset: false, forecast: false, link: true, showerror: true, linktarget: '_self', woeid: false }; var options = $.extend(defaults, options); var row = 'odd'; // Functions return this.each(function(i, e) { var $e = $(e); // Add feed class to user div if (!$e.hasClass('weatherFeed')) $e.addClass('weatherFeed'); // Check and append locations if (!$.isArray(locations)) return false; var count = locations.length; if (count > 10) count = 10; var locationid = ''; for (var i=0; i<count; i++) { if (locationid != '') locationid += ','; locationid += "'"+ locations[i] + "'"; } // Cache results for an hour to prevent overuse now = new Date(); // Select location ID type var queryType = options.woeid ? 'woeid' : 'location'; // Create Yahoo Weather feed API address var query = "select from weather.forecast where "+ queryType +" in ("+ locationid +") and u='"+ options.unit +"'"; var api = 'http://query.yahooapis.com/v1/public/yql?q='+ encodeURIComponent(query) +'&rnd='+ now.getFullYear() + now.getMonth() + now.getDay() + now.getHours() +'&format=json&callback=?'; // Send request $.ajax({ type: 'GET', url: api, dataType: 'json', success: function(data) { if (data.query) { if (data.query.results.channel.length > 0 ) { // Multiple locations var result = data.query.results.channel.length; for (var i=0; i<result; i++) { // Create weather feed item _process(e, data.query.results.channel[i], options); } } else { // Single location only _process(e, data.query.results.channel, options); } // Optional user callback function if ($.isFunction(fn)) fn.call(this,$e); } else { if (options.showerror) $e.html('<p>Weather information unavailable</p>'); } }, error: function(data) { if (options.showerror) $e.html('<p>Weather request failed</p>'); } }); // Function to each feed item var _process = function(e, feed, options) { var $e = $(e); // Format feed items var wd = feed.wind.direction; if (wd>=348.75&&wd<=360){wd="N"};if(wd>=0&&wd<11.25){wd="N"};if(wd>=11.25&&wd<33.75){wd="NNE"};if(wd>=33.75&&wd<56.25){wd="NE"};if(wd>=56.25&&wd<78.75){wd="ENE"};if(wd>=78.75&&wd<101.25){wd="E"};if(wd>=101.25&&wd<123.75){wd="ESE"};if(wd>=123.75&&wd<146.25){wd="SE"};if(wd>=146.25&&wd<168.75){wd="SSE"};if(wd>=168.75&&wd<191.25){wd="S"};if(wd>=191.25 && wd<213.75){wd="SSW"};if(wd>=213.75&&wd<236.25){wd="SW"};if(wd>=236.25&&wd<258.75){wd="WSW"};if(wd>=258.75 && wd<281.25){wd="W"};if(wd>=281.25&&wd<303.75){wd="WNW"};if(wd>=303.75&&wd<326.25){wd="NW"};if(wd>=326.25&&wd<348.75){wd="NNW"}; var wf = feed.item.forecast[0]; // Determine day or night image wpd = feed.item.pubDate; n = wpd.indexOf(":"); tpb = _getTimeAsDate(wpd.substr(n-2,8)); tsr = _getTimeAsDate(feed.astronomy.sunrise); tss = _getTimeAsDate(feed.astronomy.sunset); // Get night or day if (tpb>tsr && tpb<tss) { daynight = 'day'; } else { daynight = 'night'; } // Add item container var html = '<div class="weatherItem '+ row +' '+ daynight +'"' + '>'; // Add item data if (options.image) html += '<div class="weatherIcon"><div class="picFrameHalf imgCircle remove-margin"><div id="weatherIconBox'+ daynight +'">'+ '<img src="http://l.yimg.com/a/i/us/nws/weather/gr/'+ feed.item.condition.code + daynight.substring(0,1) +'.png" alt="' + feed.item.condition.text + '" />'+'</div></div></div>'; html += '<div class="weatherCity">'+ feed.location.city +'</div>'; if (options.country) html += '<div class="weatherCountry">'+ feed.location.country +'</div>'; html += '<div class="weatherTemp">'+ feed.item.condition.temp +'°C</div>'; html += '<div class="weatherDesc">'+ feed.item.condition.text +'</div>'; // Add optional data if (options.highlow) html += '<div class="weatherRange">High: '+ wf.high +'° Low: '+ wf.low +'°</div>'; if (options.wind) html += '<div class="weatherWind">Wind: '+ wd +' '+ feed.wind.speed + feed.units.speed +'</div>'; if (options.humidity) html += '<div class="weatherHumidity">Humidity: '+ feed.atmosphere.humidity +'</div>'; if (options.visibility) html += '<div class="weatherVisibility">Visibility: '+ feed.atmosphere.visibility +'</div>'; if (options.sunrise) html += '<div class="weatherSunrise">Sunrise: '+ feed.astronomy.sunrise +'</div>'; if (options.sunset) html += '<div class="weatherSunset">Sunset: '+ feed.astronomy.sunset +'</div>'; // Add item forecast data if (options.forecast) { html += '<div class="weatherForecast">'; var wfi = feed.item.forecast; for (var i=0; i<wfi.length; i++) { html += '<div class="weatherForecastItem" style="background-image: url(http://l.yimg.com/a/i/us/nws/weather/gr/'+ wfi[i].code +'s.png); background-repeat: no-repeat;">'; html += '<div class="weatherForecastDay">'+ wfi[i].day +'</div>'; html += '<div class="weatherForecastDate">'+ wfi[i].date +'</div>'; html += '<div class="weatherForecastText">'+ wfi[i].text +'</div>'; html += '<div class="weatherForecastRange">High: '+ wfi[i].high +' Low: '+ wfi[i].low +'</div>'; html += '</div>' } html += '</div>' } if (options.link) html += '<div class="weatherLink"><a href="'+ feed.link +'" target="'+ options.linktarget +'" title="Read full forecast">Full forecast</a></div>'; html += '</div>'; // Alternate row classes if (row == 'odd') { row = 'even'; } else { row = 'odd'; } $e.append(html); }; // Get time string as date var _getTimeAsDate = function(t) { d = new Date(); r = new Date(d.toDateString() +' '+ t); return r; }; }); }; })(jQuery);

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