5 lines
10 KiB
JavaScript
5 lines
10 KiB
JavaScript
/*! Mopidy.js - built 2013-03-12
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* http://www.mopidy.com/
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* Copyright (c) 2013 Stein Magnus Jodal and contributors
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* Licensed under the Apache License, Version 2.0 */
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function Mopidy(e){return this instanceof Mopidy?(this._settings=this._configure(e||{}),this._console=this._getConsole(),this._backoffDelay=this._settings.backoffDelayMin,this._pendingRequests={},this._webSocket=null,bane.createEventEmitter(this),this._delegateEvents(),this._settings.autoConnect&&this.connect(),void 0):new Mopidy(e)}("function"==typeof define&&define.amd&&function(e){define(e)}||"object"==typeof module&&function(e){module.exports=e()}||function(e){this.bane=e()})(function(){"use strict";function e(e,t,n){var o,r=n.length;if(r>0)for(o=0;r>o;++o)n[o](e,t);else setTimeout(function(){throw t.message=e+" listener threw error: "+t.message,t},0)}function t(e){if("function"!=typeof e)throw new TypeError("Listener is not function");return e}function n(e){return e.supervisors||(e.supervisors=[]),e.supervisors}function o(e,t){return e.listeners||(e.listeners={}),t&&!e.listeners[t]&&(e.listeners[t]=[]),t?e.listeners[t]:e.listeners}function r(e){return e.errbacks||(e.errbacks=[]),e.errbacks}function i(i){function c(t,n,o){try{n.listener.apply(n.thisp||i,o)}catch(s){e(t,s,r(i))}}return i=i||{},i.on=function(e,r,i){return"function"==typeof e?n(this).push({listener:e,thisp:r}):(o(this,e).push({listener:t(r),thisp:i}),void 0)},i.off=function(e,t){var i,s,c,u;if(!e){i=n(this),i.splice(0,i.length),s=o(this);for(c in s)s.hasOwnProperty(c)&&(i=o(this,c),i.splice(0,i.length));return i=r(this),i.splice(0,i.length),void 0}if("function"==typeof e?(i=n(this),t=e):i=o(this,e),!t)return i.splice(0,i.length),void 0;for(c=0,u=i.length;u>c;++c)if(i[c].listener===t)return i.splice(c,1),void 0},i.once=function(e,t,n){var o=function(){i.off(e,o),t.apply(this,arguments)};i.on(e,o,n)},i.bind=function(e,t){var n,o,r;if(t)for(o=0,r=t.length;r>o;++o){if("function"!=typeof e[t[o]])throw Error("No such method "+t[o]);this.on(t[o],e[t[o]],e)}else for(n in e)"function"==typeof e[n]&&this.on(n,e[n],e);return e},i.emit=function(e){var t,r,i=n(this),u=s.call(arguments);for(t=0,r=i.length;r>t;++t)c(e,i[t],u);for(i=o(this,e).slice(),u=s.call(arguments,1),t=0,r=i.length;r>t;++t)c(e,i[t],u)},i.errback=function(e){this.errbacks||(this.errbacks=[]),this.errbacks.push(t(e))},i}var s=Array.prototype.slice;return{createEventEmitter:i}}),function(e){"use strict";e(["module"],function(){function e(e,n,o,r){return t(e).then(n,o,r)}function t(e){var t,n;return e instanceof o?t=e:(c(e)&&"function"==typeof e.valueOf&&(e=e.valueOf()),c(e)?(n=s(),e.then(n.resolve,n.reject,n.progress),t=n.promise):t=r(e)),t}function n(t){return e(t,function(e){return i(e)})}function o(e){this.then=e}function r(e){var n=new o(function(n){try{return t(n?n(e):e)}catch(o){return i(o)}});return n}function i(e){var n=new o(function(n,o){try{return o?t(o(e)):i(e)}catch(r){return i(r)}});return n}function s(){function e(e,t,n){return l(e,t,n)}function n(e){return d(e)}function r(e){return d(i(e))}function c(e){return p(e)}var u,f,a,h,l,p,d;return f=new o(e),u={then:e,resolve:n,reject:r,progress:c,promise:f,resolver:{resolve:n,reject:r,progress:c}},a=[],h=[],l=function(e,t,n){var o,r;return o=s(),r=n?function(e){try{o.progress(n(e))}catch(t){o.progress(t)}}:o.progress,a.push(function(n){n.then(e,t).then(o.resolve,o.reject,r)}),h.push(r),o.promise},p=function(e){return y(h,e),e},d=function(e){return e=t(e),l=e.then,d=t,p=g,y(a,e),h=a=w,e},u}function c(e){return e&&"function"==typeof e.then}function u(t,n,o,r,i){return b(2,arguments),e(t,function(t){function c(e){y(e)}function u(e){d(e)}var f,a,h,l,p,d,y,b,k,_;if(k=t.length>>>0,f=Math.max(0,Math.min(n,k)),h=[],a=k-f+1,l=[],p=s(),f)for(b=p.progress,y=function(e){l.push(e),--a||(d=y=g,p.reject(l))},d=function(e){h.push(e),--f||(d=y=g,p.resolve(h))},_=0;k>_;++_)_ in t&&e(t[_],u,c,b);else p.resolve(h);return p.then(o,r,i)})}function f(e,t,n,o){function r(e){return t?t(e[0]):e[0]}return u(e,1,r,n,o)}function a(e,t,n,o){return b(1,arguments),l(e,k).then(t,n,o)}function h(){return l(arguments,k)}function l(t,n){return e(t,function(t){var o,r,i,c,u,f,a;if(i=r=t.length>>>0,o=[],a=s(),i)for(u=a.reject,c=function(t,r){e(t,n).then(function(e){o[r]=e,--i||a.resolve(o)},u)},f=0;r>f;f++)f in t?c(t[f],f):--i;else a.resolve(o);return a.promise})}function p(t,n){var o=v.call(arguments,1);return e(t,function(t){var r;return r=t.length,o[0]=function(t,o,i){return e(t,function(t){return e(o,function(e){return n(t,e,i,r)})})},_.apply(t,o)})}function d(t,n,o){var r=arguments.length>2;return e(t,function(e){return n.resolve(r?o:e)},n.reject,n.progress)}function y(e,t){for(var n,o=0;n=e[o++];)n(t)}function b(e,t){for(var n,o=t.length;o>e;)if(n=t[--o],null!=n&&"function"!=typeof n)throw Error("arg "+o+" must be a function")}function g(){}function k(e){return e}var _,v,w;return e.defer=s,e.resolve=t,e.reject=n,e.join=h,e.all=a,e.some=u,e.any=f,e.map=l,e.reduce=p,e.chain=d,e.isPromise=c,o.prototype={always:function(e,t){return this.then(e,e,t)},otherwise:function(e){return this.then(w,e)}},v=[].slice,_=[].reduce||function(e){var t,n,o,r,i;if(i=0,t=Object(this),r=t.length>>>0,n=arguments,1>=n.length)for(;;){if(i in t){o=t[i++];break}if(++i>=r)throw new TypeError}else o=n[1];for(;r>i;++i)i in t&&(o=e(o,t[i],i,t));return o},e})}("function"==typeof define&&define.amd?define:function(e,t){"object"==typeof exports?module.exports=t():this.when=t()}),Mopidy.prototype._configure=function(e){return e.webSocketUrl=e.webSocketUrl||"ws://"+document.location.host+"/mopidy/ws/",e.autoConnect!==!1&&(e.autoConnect=!0),e.backoffDelayMin=e.backoffDelayMin||1e3,e.backoffDelayMax=e.backoffDelayMax||64e3,e},Mopidy.prototype._getConsole=function(){var e=window.console||{};return e.log=e.log||function(){},e.warn=e.warn||function(){},e.error=e.error||function(){},e},Mopidy.prototype._delegateEvents=function(){this.off("websocket:close"),this.off("websocket:error"),this.off("websocket:incomingMessage"),this.off("websocket:open"),this.off("state:offline"),this.on("websocket:close",this._cleanup),this.on("websocket:error",this._handleWebSocketError),this.on("websocket:incomingMessage",this._handleMessage),this.on("websocket:open",this._resetBackoffDelay),this.on("websocket:open",this._getApiSpec),this.on("state:offline",this._reconnect)},Mopidy.prototype.connect=function(){if(this._webSocket){if(this._webSocket.readyState===WebSocket.OPEN)return;this._webSocket.close()}this._webSocket=this._settings.webSocket||new WebSocket(this._settings.webSocketUrl),this._webSocket.onclose=function(e){this.emit("websocket:close",e)}.bind(this),this._webSocket.onerror=function(e){this.emit("websocket:error",e)}.bind(this),this._webSocket.onopen=function(){this.emit("websocket:open")}.bind(this),this._webSocket.onmessage=function(e){this.emit("websocket:incomingMessage",e)}.bind(this)},Mopidy.prototype._cleanup=function(e){Object.keys(this._pendingRequests).forEach(function(t){var n=this._pendingRequests[t];delete this._pendingRequests[t],n.reject({message:"WebSocket closed",closeEvent:e})}.bind(this)),this.emit("state:offline")},Mopidy.prototype._reconnect=function(){this.emit("reconnectionPending",{timeToAttempt:this._backoffDelay}),setTimeout(function(){this.emit("reconnecting"),this.connect()}.bind(this),this._backoffDelay),this._backoffDelay=2*this._backoffDelay,this._backoffDelay>this._settings.backoffDelayMax&&(this._backoffDelay=this._settings.backoffDelayMax)},Mopidy.prototype._resetBackoffDelay=function(){this._backoffDelay=this._settings.backoffDelayMin},Mopidy.prototype.close=function(){this.off("state:offline",this._reconnect),this._webSocket.close()},Mopidy.prototype._handleWebSocketError=function(e){this._console.warn("WebSocket error:",e.stack||e)},Mopidy.prototype._send=function(e){var t=when.defer();switch(this._webSocket.readyState){case WebSocket.CONNECTING:t.resolver.reject({message:"WebSocket is still connecting"});break;case WebSocket.CLOSING:t.resolver.reject({message:"WebSocket is closing"});break;case WebSocket.CLOSED:t.resolver.reject({message:"WebSocket is closed"});break;default:e.jsonrpc="2.0",e.id=this._nextRequestId(),this._pendingRequests[e.id]=t.resolver,this._webSocket.send(JSON.stringify(e)),this.emit("websocket:outgoingMessage",e)}return t.promise},Mopidy.prototype._nextRequestId=function(){var e=-1;return function(){return e+=1}}(),Mopidy.prototype._handleMessage=function(e){try{var t=JSON.parse(e.data);t.hasOwnProperty("id")?this._handleResponse(t):t.hasOwnProperty("event")?this._handleEvent(t):this._console.warn("Unknown message type received. Message was: "+e.data)}catch(n){if(!(n instanceof SyntaxError))throw n;this._console.warn("WebSocket message parsing failed. Message was: "+e.data)}},Mopidy.prototype._handleResponse=function(e){if(!this._pendingRequests.hasOwnProperty(e.id))return this._console.warn("Unexpected response received. Message was:",e),void 0;var t=this._pendingRequests[e.id];delete this._pendingRequests[e.id],e.hasOwnProperty("result")?t.resolve(e.result):e.hasOwnProperty("error")?(t.reject(e.error),this._console.warn("Server returned error:",e.error)):(t.reject({message:"Response without 'result' or 'error' received",data:{response:e}}),this._console.warn("Response without 'result' or 'error' received. Message was:",e))},Mopidy.prototype._handleEvent=function(e){var t=e.event,n=e;delete n.event,this.emit("event:"+this._snakeToCamel(t),n)},Mopidy.prototype._getApiSpec=function(){this._send({method:"core.describe"}).then(this._createApi.bind(this),this._handleWebSocketError).then(null,this._handleWebSocketError)},Mopidy.prototype._createApi=function(e){var t=function(e){return function(){var t=Array.prototype.slice.call(arguments);return this._send({method:e,params:t})}.bind(this)}.bind(this),n=function(e){var t=e.split(".");return t.length>=1&&"core"===t[0]&&(t=t.slice(1)),t},o=function(e){var t=this;return e.forEach(function(e){e=this._snakeToCamel(e),t[e]=t[e]||{},t=t[e]}.bind(this)),t}.bind(this),r=function(r){var i=n(r),s=this._snakeToCamel(i.slice(-1)[0]),c=o(i.slice(0,-1));c[s]=t(r),c[s].description=e[r].description,c[s].params=e[r].params}.bind(this);Object.keys(e).forEach(r),this.emit("state:online")},Mopidy.prototype._snakeToCamel=function(e){return e.replace(/(_[a-z])/g,function(e){return e.toUpperCase().replace("_","")})}; |