akko
Version:
Music visualising framework based on WebGL and Web Audio API.
1,630 lines (1,397 loc) • 104 kB
JavaScript
/*! Akko v0.1.0 | (c) Timur Kuzhagaliyev | github.com/TimboKZ/Akko */
var Akko =
/******/ (function(modules) { // webpackBootstrap
/******/ // The module cache
/******/ var installedModules = {};
/******/
/******/ // The require function
/******/ function __webpack_require__(moduleId) {
/******/
/******/ // Check if module is in cache
/******/ if(installedModules[moduleId]) {
/******/ return installedModules[moduleId].exports;
/******/ }
/******/ // Create a new module (and put it into the cache)
/******/ var module = installedModules[moduleId] = {
/******/ i: moduleId,
/******/ l: false,
/******/ exports: {}
/******/ };
/******/
/******/ // Execute the module function
/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ // Flag the module as loaded
/******/ module.l = true;
/******/
/******/ // Return the exports of the module
/******/ return module.exports;
/******/ }
/******/
/******/
/******/ // expose the modules object (__webpack_modules__)
/******/ __webpack_require__.m = modules;
/******/
/******/ // expose the module cache
/******/ __webpack_require__.c = installedModules;
/******/
/******/ // define getter function for harmony exports
/******/ __webpack_require__.d = function(exports, name, getter) {
/******/ if(!__webpack_require__.o(exports, name)) {
/******/ Object.defineProperty(exports, name, {
/******/ configurable: false,
/******/ enumerable: true,
/******/ get: getter
/******/ });
/******/ }
/******/ };
/******/
/******/ // getDefaultExport function for compatibility with non-harmony modules
/******/ __webpack_require__.n = function(module) {
/******/ var getter = module && module.__esModule ?
/******/ function getDefault() { return module['default']; } :
/******/ function getModuleExports() { return module; };
/******/ __webpack_require__.d(getter, 'a', getter);
/******/ return getter;
/******/ };
/******/
/******/ // Object.prototype.hasOwnProperty.call
/******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ // __webpack_public_path__
/******/ __webpack_require__.p = "";
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/******/ // Load entry module and return exports
/******/ return __webpack_require__(__webpack_require__.s = 5);
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/************************************************************************/
/******/ ([
/* 0 */
/***/ (function(module, exports) {
module.exports = THREE;
/***/ }),
/* 1 */
/***/ (function(module, exports, __webpack_require__) {
"use strict";
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
/**
* @author Timur Kuzhagaliyev <tim.kuzh@gmail.com>
* @copyright 2017
* @license GPL-3.0
*/
var Helper = __webpack_require__(15);
/**
* @abstract
*/
var Visualiser = function (_Helper) {
_inherits(Visualiser, _Helper);
/**
* @param {object} data
* @param {string} data.code
* @param {string} data.name
* @param {int} data.fftSize
* @param {number} data.smoothingTimeConstant
*/
function Visualiser(data) {
_classCallCheck(this, Visualiser);
var _this = _possibleConstructorReturn(this, (Visualiser.__proto__ || Object.getPrototypeOf(Visualiser)).call(this));
_this.code = data.code || 'UV';
_this.name = data.name || 'Untitled Visualiser';
_this.fftSize = data.fftSize || 128;
_this.smoothingTimeConstant = data.smoothingTimeConstant || 0;
_this.initialised = false;
_this.paused = false;
return _this;
}
/**
* @param {object} data
* @param {THREE.WebGLRenderer} data.renderer
* @param {AnalyserNode} data.analyser
* @param {number} data.height
* @param {number} data.width
*/
_createClass(Visualiser, [{
key: 'init',
value: function init(data) {
this.onInit(data);
this.initialised = true;
}
/**
* @abstract
* @param {object} data
* @param {THREE.WebGLRenderer} data.renderer
* @param {AnalyserNode} data.analyser
* @param {number} data.height
* @param {number} data.width
*/
// eslint-disable-next-line
}, {
key: 'onInit',
value: function onInit(data) {
throw new Error('The \'onInit\' method was not defined on ' + this.name + '!');
}
/**
* @param {object} data
* @param {THREE.WebGLRenderer} data.renderer
* @param {AnalyserNode} data.analyser
* @param {number} data.height
* @param {number} data.width
*/
}, {
key: 'revive',
value: function revive(data) {
this.onRevive(data);
this.paused = false;
}
/**
* @abstract
* @param {object} data
* @param {THREE.WebGLRenderer} data.renderer
* @param {AnalyserNode} data.analyser
* @param {number} data.height
* @param {number} data.width
*/
// eslint-disable-next-line
}, {
key: 'onRevive',
value: function onRevive(data) {}
/**
* @param {object} data
* @param {THREE.WebGLRenderer} data.renderer
* @param {AnalyserNode} data.analyser
* @param {Float32Array} data.frequencyData
* @param {Float32Array} data.timeDomainData
*/
}, {
key: 'update',
value: function update(data) {
this.onUpdate(data);
}
/**
* @abstract
* @param {object} data
* @param {THREE.WebGLRenderer} data.renderer
* @param {AnalyserNode} data.analyser
* @param {Float32Array} data.frequencyData
* @param {Float32Array} data.timeDomainData
*/
// eslint-disable-next-line
}, {
key: 'onUpdate',
value: function onUpdate(data) {
throw new Error('The \'onUpdate\' method was not defined on ' + this.name + '!');
}
/**
* @param {THREE.WebGLRenderer} data.renderer
* @param {AnalyserNode} data.analyser
* @param {number} data.height
* @param {number} data.width
*/
}, {
key: 'resize',
value: function resize(data) {
this.onResize(data);
}
/**
* @abstract
* @param {THREE.WebGLRenderer} data.renderer
* @param {AnalyserNode} data.analyser
* @param {number} data.height
* @param {number} data.width
*/
// eslint-disable-next-line
}, {
key: 'onResize',
value: function onResize(data) {}
}, {
key: 'pause',
value: function pause() {
this.onPause();
this.paused = true;
}
/**
* @abstract
*/
}, {
key: 'onPause',
value: function onPause() {}
}, {
key: 'destroy',
value: function destroy() {
this.onDestroy();
}
/**
* @abstract
*/
}, {
key: 'onDestroy',
value: function onDestroy() {
throw new Error('The \'onDestroy\' method was not defined on ' + this.name + '!');
}
}, {
key: 'error',
value: function error(message) {
// TODO: Draw error message on canvas
throw new Error(message);
}
}, {
key: 'isInitialised',
value: function isInitialised() {
return this.initialised;
}
}, {
key: 'isPaused',
value: function isPaused() {
return this.paused;
}
}]);
return Visualiser;
}(Helper);
module.exports = Visualiser;
/***/ }),
/* 2 */
/***/ (function(module, exports, __webpack_require__) {
"use strict";
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
/**
* @author Timur Kuzhagaliyev <tim.kuzh@gmail.com>
* @copyright 2017
* @license GPL-3.0
*/
var Promise = __webpack_require__(10);
var Track = __webpack_require__(11);
var PlayerStates = {
LOADING: 'Loading...',
READY: 'Ready!',
PLAYING: 'Playing...',
PAUSED: 'Paused.',
FINISHED: 'Finished!'
};
var MusicPlayer = function () {
/**
* @param data
* @param {AudioContext} data.audioContext
* @param {boolean} data.autoPlay
*/
function MusicPlayer(data) {
_classCallCheck(this, MusicPlayer);
this.context = data.audioContext;
this.autoPlay = data.autoPlay;
this.gain = this.context.createGain();
this.gain.connect(this.context.destination);
this.analyser = this.context.createAnalyser();
this.analyser.connect(this.context.destination);
this.buffer = null;
this.sourceNode = this.context.createBufferSource();
this.startedAt = 0;
this.pausedAt = 0;
this.playing = false;
/**
* @callback playbackListener
* @param {string} playerState
* @param {Track[]} trackList
* @param {int} currentTrackIndex
*/
/** @type {playbackListener[]} */
this.listeners = [];
/** @type {Track[]} */
this.trackList = [];
this.currentTrackIndex = -1;
this.setState(PlayerStates.READY);
}
_createClass(MusicPlayer, [{
key: 'setState',
value: function setState(newState) {
this.state = newState;
this.notifyListeners();
}
}, {
key: 'notifyListeners',
value: function notifyListeners() {
for (var i = 0; i < this.listeners.length; i++) {
var listener = this.listeners[i];
listener(this.state, this.trackList, this.currentTrackIndex);
}
}
/**
* @param {playbackListener} listener
*/
}, {
key: 'addListener',
value: function addListener(listener) {
this.listeners.push(listener);
}
}, {
key: 'start',
value: function start() {
this.setState(PlayerStates.READY);
if (this.autoPlay) this.playNextTrack();
this.started = true;
}
/**
* @param {int} [currentTrackIndex] Current track index override
*/
}, {
key: 'playNextTrack',
value: function playNextTrack(currentTrackIndex) {
var currentIndex = currentTrackIndex || this.currentTrackIndex;
var nextTrackIndex = currentIndex + 1;
if (nextTrackIndex >= this.trackList.length) {
return this.setState(PlayerStates.FINISHED);
}
this.playTrack(nextTrackIndex);
}
}, {
key: 'playTrack',
value: function playTrack(index) {
var _this = this;
this.setState(PlayerStates.LOADING);
var track = this.trackList[index];
Promise.resolve().then(function () {
return track.prepareArrayBuffer();
}).then(function (arrayBuffer) {
return _this.context.decodeAudioData(arrayBuffer);
}).then(function (audioBuffer) {
_this.buffer = audioBuffer;
_this.stop();
_this.play();
_this.currentTrackIndex = index;
_this.setState(PlayerStates.PLAYING);
}).catch(function (error) {
console.error('Error preparing track:', error);
console.warn('Skipping \'' + track.title + '\'!');
return _this.playNextTrack(index);
});
}
}, {
key: 'togglePlayback',
value: function togglePlayback() {
if (this.playing) {
this.pause();
} else {
if (this.buffer === null) this.playNextTrack();else this.play();
}
return this.playing;
}
}, {
key: 'play',
value: function play() {
var offset = this.pausedAt;
this.sourceNode = this.context.createBufferSource();
this.sourceNode.connect(this.gain);
this.sourceNode.connect(this.analyser);
this.sourceNode.buffer = this.buffer;
this.sourceNode.onended = this.ended.bind(this);
this.sourceNode.start(0, offset);
this.startedAt = this.context.currentTime - offset;
this.pausedAt = 0;
this.playing = true;
this.setState(PlayerStates.PLAYING);
}
}, {
key: 'pause',
value: function pause() {
if (!this.playing) return;
var elapsed = this.context.currentTime - this.startedAt;
this.stop();
this.pausedAt = elapsed;
this.setState(PlayerStates.PAUSED);
}
}, {
key: 'stop',
value: function stop() {
if (!this.playing) return;
if (this.sourceNode) {
this.sourceNode.disconnect();
this.sourceNode.stop(0);
this.sourceNode = null;
}
this.pausedAt = 0;
this.startedAt = 0;
this.playing = false;
}
}, {
key: 'ended',
value: function ended() {
this.playNextTrack();
}
}, {
key: 'addTrack',
value: function addTrack(source, title) {
var track = new Track({
source: source,
title: title
});
var length = this.trackList.push(track);
this.notifyListeners();
if (this.started) this.playTrack(length - 1);
}
}, {
key: 'getAnalyser',
value: function getAnalyser() {
return this.analyser;
}
}]);
return MusicPlayer;
}();
module.exports = MusicPlayer;
module.exports.States = PlayerStates;
/***/ }),
/* 3 */
/***/ (function(module, exports, __webpack_require__) {
"use strict";
/**
* @author Timur Kuzhagaliyev <tim.kuzh@gmail.com>
* @copyright 2017
* @license GPL-3.0
*/
module.exports = {
BarVisualiser: __webpack_require__(14),
RingVisualiser: __webpack_require__(16)
};
/***/ }),
/* 4 */
/***/ (function(module, __webpack_exports__, __webpack_require__) {
"use strict";
Object.defineProperty(__webpack_exports__, "__esModule", { value: true });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "h", function() { return h; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "createElement", function() { return h; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "cloneElement", function() { return cloneElement; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "Component", function() { return Component; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "render", function() { return render; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rerender", function() { return rerender; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "options", function() { return options; });
/** Virtual DOM Node */
function VNode() {}
/** Global options
* @public
* @namespace options {Object}
*/
var options = {
/** If `true`, `prop` changes trigger synchronous component updates.
* @name syncComponentUpdates
* @type Boolean
* @default true
*/
//syncComponentUpdates: true,
/** Processes all created VNodes.
* @param {VNode} vnode A newly-created VNode to normalize/process
*/
//vnode(vnode) { }
/** Hook invoked after a component is mounted. */
// afterMount(component) { }
/** Hook invoked after the DOM is updated with a component's latest render. */
// afterUpdate(component) { }
/** Hook invoked immediately before a component is unmounted. */
// beforeUnmount(component) { }
};
var stack = [];
var EMPTY_CHILDREN = [];
/** JSX/hyperscript reviver
* Benchmarks: https://esbench.com/bench/57ee8f8e330ab09900a1a1a0
* @see http://jasonformat.com/wtf-is-jsx
* @public
*/
function h(nodeName, attributes) {
var children = EMPTY_CHILDREN,
lastSimple,
child,
simple,
i;
for (i = arguments.length; i-- > 2;) {
stack.push(arguments[i]);
}
if (attributes && attributes.children != null) {
if (!stack.length) stack.push(attributes.children);
delete attributes.children;
}
while (stack.length) {
if ((child = stack.pop()) && child.pop !== undefined) {
for (i = child.length; i--;) {
stack.push(child[i]);
}
} else {
if (typeof child === 'boolean') child = null;
if (simple = typeof nodeName !== 'function') {
if (child == null) child = '';else if (typeof child === 'number') child = String(child);else if (typeof child !== 'string') simple = false;
}
if (simple && lastSimple) {
children[children.length - 1] += child;
} else if (children === EMPTY_CHILDREN) {
children = [child];
} else {
children.push(child);
}
lastSimple = simple;
}
}
var p = new VNode();
p.nodeName = nodeName;
p.children = children;
p.attributes = attributes == null ? undefined : attributes;
p.key = attributes == null ? undefined : attributes.key;
// if a "vnode hook" is defined, pass every created VNode to it
if (options.vnode !== undefined) options.vnode(p);
return p;
}
/** Copy own-properties from `props` onto `obj`.
* @returns obj
* @private
*/
function extend(obj, props) {
for (var i in props) {
obj[i] = props[i];
}return obj;
}
/** Call a function asynchronously, as soon as possible.
* @param {Function} callback
*/
var defer = typeof Promise == 'function' ? Promise.resolve().then.bind(Promise.resolve()) : setTimeout;
function cloneElement(vnode, props) {
return h(vnode.nodeName, extend(extend({}, vnode.attributes), props), arguments.length > 2 ? [].slice.call(arguments, 2) : vnode.children);
}
// DOM properties that should NOT have "px" added when numeric
var IS_NON_DIMENSIONAL = /acit|ex(?:s|g|n|p|$)|rph|ows|mnc|ntw|ine[ch]|zoo|^ord/i;
/** Managed queue of dirty components to be re-rendered */
var items = [];
function enqueueRender(component) {
if (!component._dirty && (component._dirty = true) && items.push(component) == 1) {
(options.debounceRendering || defer)(rerender);
}
}
function rerender() {
var p,
list = items;
items = [];
while (p = list.pop()) {
if (p._dirty) renderComponent(p);
}
}
/** Check if two nodes are equivalent.
* @param {Element} node
* @param {VNode} vnode
* @private
*/
function isSameNodeType(node, vnode, hydrating) {
if (typeof vnode === 'string' || typeof vnode === 'number') {
return node.splitText !== undefined;
}
if (typeof vnode.nodeName === 'string') {
return !node._componentConstructor && isNamedNode(node, vnode.nodeName);
}
return hydrating || node._componentConstructor === vnode.nodeName;
}
/** Check if an Element has a given normalized name.
* @param {Element} node
* @param {String} nodeName
*/
function isNamedNode(node, nodeName) {
return node.normalizedNodeName === nodeName || node.nodeName.toLowerCase() === nodeName.toLowerCase();
}
/**
* Reconstruct Component-style `props` from a VNode.
* Ensures default/fallback values from `defaultProps`:
* Own-properties of `defaultProps` not present in `vnode.attributes` are added.
* @param {VNode} vnode
* @returns {Object} props
*/
function getNodeProps(vnode) {
var props = extend({}, vnode.attributes);
props.children = vnode.children;
var defaultProps = vnode.nodeName.defaultProps;
if (defaultProps !== undefined) {
for (var i in defaultProps) {
if (props[i] === undefined) {
props[i] = defaultProps[i];
}
}
}
return props;
}
/** Create an element with the given nodeName.
* @param {String} nodeName
* @param {Boolean} [isSvg=false] If `true`, creates an element within the SVG namespace.
* @returns {Element} node
*/
function createNode(nodeName, isSvg) {
var node = isSvg ? document.createElementNS('http://www.w3.org/2000/svg', nodeName) : document.createElement(nodeName);
node.normalizedNodeName = nodeName;
return node;
}
/** Remove a child node from its parent if attached.
* @param {Element} node The node to remove
*/
function removeNode(node) {
var parentNode = node.parentNode;
if (parentNode) parentNode.removeChild(node);
}
/** Set a named attribute on the given Node, with special behavior for some names and event handlers.
* If `value` is `null`, the attribute/handler will be removed.
* @param {Element} node An element to mutate
* @param {string} name The name/key to set, such as an event or attribute name
* @param {any} old The last value that was set for this name/node pair
* @param {any} value An attribute value, such as a function to be used as an event handler
* @param {Boolean} isSvg Are we currently diffing inside an svg?
* @private
*/
function setAccessor(node, name, old, value, isSvg) {
if (name === 'className') name = 'class';
if (name === 'key') {
// ignore
} else if (name === 'ref') {
if (old) old(null);
if (value) value(node);
} else if (name === 'class' && !isSvg) {
node.className = value || '';
} else if (name === 'style') {
if (!value || typeof value === 'string' || typeof old === 'string') {
node.style.cssText = value || '';
}
if (value && typeof value === 'object') {
if (typeof old !== 'string') {
for (var i in old) {
if (!(i in value)) node.style[i] = '';
}
}
for (var i in value) {
node.style[i] = typeof value[i] === 'number' && IS_NON_DIMENSIONAL.test(i) === false ? value[i] + 'px' : value[i];
}
}
} else if (name === 'dangerouslySetInnerHTML') {
if (value) node.innerHTML = value.__html || '';
} else if (name[0] == 'o' && name[1] == 'n') {
var useCapture = name !== (name = name.replace(/Capture$/, ''));
name = name.toLowerCase().substring(2);
if (value) {
if (!old) node.addEventListener(name, eventProxy, useCapture);
} else {
node.removeEventListener(name, eventProxy, useCapture);
}
(node._listeners || (node._listeners = {}))[name] = value;
} else if (name !== 'list' && name !== 'type' && !isSvg && name in node) {
setProperty(node, name, value == null ? '' : value);
if (value == null || value === false) node.removeAttribute(name);
} else {
var ns = isSvg && name !== (name = name.replace(/^xlink\:?/, ''));
if (value == null || value === false) {
if (ns) node.removeAttributeNS('http://www.w3.org/1999/xlink', name.toLowerCase());else node.removeAttribute(name);
} else if (typeof value !== 'function') {
if (ns) node.setAttributeNS('http://www.w3.org/1999/xlink', name.toLowerCase(), value);else node.setAttribute(name, value);
}
}
}
/** Attempt to set a DOM property to the given value.
* IE & FF throw for certain property-value combinations.
*/
function setProperty(node, name, value) {
try {
node[name] = value;
} catch (e) {}
}
/** Proxy an event to hooked event handlers
* @private
*/
function eventProxy(e) {
return this._listeners[e.type](options.event && options.event(e) || e);
}
/** Queue of components that have been mounted and are awaiting componentDidMount */
var mounts = [];
/** Diff recursion count, used to track the end of the diff cycle. */
var diffLevel = 0;
/** Global flag indicating if the diff is currently within an SVG */
var isSvgMode = false;
/** Global flag indicating if the diff is performing hydration */
var hydrating = false;
/** Invoke queued componentDidMount lifecycle methods */
function flushMounts() {
var c;
while (c = mounts.pop()) {
if (options.afterMount) options.afterMount(c);
if (c.componentDidMount) c.componentDidMount();
}
}
/** Apply differences in a given vnode (and it's deep children) to a real DOM Node.
* @param {Element} [dom=null] A DOM node to mutate into the shape of the `vnode`
* @param {VNode} vnode A VNode (with descendants forming a tree) representing the desired DOM structure
* @returns {Element} dom The created/mutated element
* @private
*/
function diff(dom, vnode, context, mountAll, parent, componentRoot) {
// diffLevel having been 0 here indicates initial entry into the diff (not a subdiff)
if (!diffLevel++) {
// when first starting the diff, check if we're diffing an SVG or within an SVG
isSvgMode = parent != null && parent.ownerSVGElement !== undefined;
// hydration is indicated by the existing element to be diffed not having a prop cache
hydrating = dom != null && !('__preactattr_' in dom);
}
var ret = idiff(dom, vnode, context, mountAll, componentRoot);
// append the element if its a new parent
if (parent && ret.parentNode !== parent) parent.appendChild(ret);
// diffLevel being reduced to 0 means we're exiting the diff
if (! --diffLevel) {
hydrating = false;
// invoke queued componentDidMount lifecycle methods
if (!componentRoot) flushMounts();
}
return ret;
}
/** Internals of `diff()`, separated to allow bypassing diffLevel / mount flushing. */
function idiff(dom, vnode, context, mountAll, componentRoot) {
var out = dom,
prevSvgMode = isSvgMode;
// empty values (null, undefined, booleans) render as empty Text nodes
if (vnode == null || typeof vnode === 'boolean') vnode = '';
// Fast case: Strings & Numbers create/update Text nodes.
if (typeof vnode === 'string' || typeof vnode === 'number') {
// update if it's already a Text node:
if (dom && dom.splitText !== undefined && dom.parentNode && (!dom._component || componentRoot)) {
/* istanbul ignore if */ /* Browser quirk that can't be covered: https://github.com/developit/preact/commit/fd4f21f5c45dfd75151bd27b4c217d8003aa5eb9 */
if (dom.nodeValue != vnode) {
dom.nodeValue = vnode;
}
} else {
// it wasn't a Text node: replace it with one and recycle the old Element
out = document.createTextNode(vnode);
if (dom) {
if (dom.parentNode) dom.parentNode.replaceChild(out, dom);
recollectNodeTree(dom, true);
}
}
out['__preactattr_'] = true;
return out;
}
// If the VNode represents a Component, perform a component diff:
var vnodeName = vnode.nodeName;
if (typeof vnodeName === 'function') {
return buildComponentFromVNode(dom, vnode, context, mountAll);
}
// Tracks entering and exiting SVG namespace when descending through the tree.
isSvgMode = vnodeName === 'svg' ? true : vnodeName === 'foreignObject' ? false : isSvgMode;
// If there's no existing element or it's the wrong type, create a new one:
vnodeName = String(vnodeName);
if (!dom || !isNamedNode(dom, vnodeName)) {
out = createNode(vnodeName, isSvgMode);
if (dom) {
// move children into the replacement node
while (dom.firstChild) {
out.appendChild(dom.firstChild);
} // if the previous Element was mounted into the DOM, replace it inline
if (dom.parentNode) dom.parentNode.replaceChild(out, dom);
// recycle the old element (skips non-Element node types)
recollectNodeTree(dom, true);
}
}
var fc = out.firstChild,
props = out['__preactattr_'],
vchildren = vnode.children;
if (props == null) {
props = out['__preactattr_'] = {};
for (var a = out.attributes, i = a.length; i--;) {
props[a[i].name] = a[i].value;
}
}
// Optimization: fast-path for elements containing a single TextNode:
if (!hydrating && vchildren && vchildren.length === 1 && typeof vchildren[0] === 'string' && fc != null && fc.splitText !== undefined && fc.nextSibling == null) {
if (fc.nodeValue != vchildren[0]) {
fc.nodeValue = vchildren[0];
}
}
// otherwise, if there are existing or new children, diff them:
else if (vchildren && vchildren.length || fc != null) {
innerDiffNode(out, vchildren, context, mountAll, hydrating || props.dangerouslySetInnerHTML != null);
}
// Apply attributes/props from VNode to the DOM Element:
diffAttributes(out, vnode.attributes, props);
// restore previous SVG mode: (in case we're exiting an SVG namespace)
isSvgMode = prevSvgMode;
return out;
}
/** Apply child and attribute changes between a VNode and a DOM Node to the DOM.
* @param {Element} dom Element whose children should be compared & mutated
* @param {Array} vchildren Array of VNodes to compare to `dom.childNodes`
* @param {Object} context Implicitly descendant context object (from most recent `getChildContext()`)
* @param {Boolean} mountAll
* @param {Boolean} isHydrating If `true`, consumes externally created elements similar to hydration
*/
function innerDiffNode(dom, vchildren, context, mountAll, isHydrating) {
var originalChildren = dom.childNodes,
children = [],
keyed = {},
keyedLen = 0,
min = 0,
len = originalChildren.length,
childrenLen = 0,
vlen = vchildren ? vchildren.length : 0,
j,
c,
f,
vchild,
child;
// Build up a map of keyed children and an Array of unkeyed children:
if (len !== 0) {
for (var i = 0; i < len; i++) {
var _child = originalChildren[i],
props = _child['__preactattr_'],
key = vlen && props ? _child._component ? _child._component.__key : props.key : null;
if (key != null) {
keyedLen++;
keyed[key] = _child;
} else if (props || (_child.splitText !== undefined ? isHydrating ? _child.nodeValue.trim() : true : isHydrating)) {
children[childrenLen++] = _child;
}
}
}
if (vlen !== 0) {
for (var i = 0; i < vlen; i++) {
vchild = vchildren[i];
child = null;
// attempt to find a node based on key matching
var key = vchild.key;
if (key != null) {
if (keyedLen && keyed[key] !== undefined) {
child = keyed[key];
keyed[key] = undefined;
keyedLen--;
}
}
// attempt to pluck a node of the same type from the existing children
else if (!child && min < childrenLen) {
for (j = min; j < childrenLen; j++) {
if (children[j] !== undefined && isSameNodeType(c = children[j], vchild, isHydrating)) {
child = c;
children[j] = undefined;
if (j === childrenLen - 1) childrenLen--;
if (j === min) min++;
break;
}
}
}
// morph the matched/found/created DOM child to match vchild (deep)
child = idiff(child, vchild, context, mountAll);
f = originalChildren[i];
if (child && child !== dom && child !== f) {
if (f == null) {
dom.appendChild(child);
} else if (child === f.nextSibling) {
removeNode(f);
} else {
dom.insertBefore(child, f);
}
}
}
}
// remove unused keyed children:
if (keyedLen) {
for (var i in keyed) {
if (keyed[i] !== undefined) recollectNodeTree(keyed[i], false);
}
}
// remove orphaned unkeyed children:
while (min <= childrenLen) {
if ((child = children[childrenLen--]) !== undefined) recollectNodeTree(child, false);
}
}
/** Recursively recycle (or just unmount) a node and its descendants.
* @param {Node} node DOM node to start unmount/removal from
* @param {Boolean} [unmountOnly=false] If `true`, only triggers unmount lifecycle, skips removal
*/
function recollectNodeTree(node, unmountOnly) {
var component = node._component;
if (component) {
// if node is owned by a Component, unmount that component (ends up recursing back here)
unmountComponent(component);
} else {
// If the node's VNode had a ref function, invoke it with null here.
// (this is part of the React spec, and smart for unsetting references)
if (node['__preactattr_'] != null && node['__preactattr_'].ref) node['__preactattr_'].ref(null);
if (unmountOnly === false || node['__preactattr_'] == null) {
removeNode(node);
}
removeChildren(node);
}
}
/** Recollect/unmount all children.
* - we use .lastChild here because it causes less reflow than .firstChild
* - it's also cheaper than accessing the .childNodes Live NodeList
*/
function removeChildren(node) {
node = node.lastChild;
while (node) {
var next = node.previousSibling;
recollectNodeTree(node, true);
node = next;
}
}
/** Apply differences in attributes from a VNode to the given DOM Element.
* @param {Element} dom Element with attributes to diff `attrs` against
* @param {Object} attrs The desired end-state key-value attribute pairs
* @param {Object} old Current/previous attributes (from previous VNode or element's prop cache)
*/
function diffAttributes(dom, attrs, old) {
var name;
// remove attributes no longer present on the vnode by setting them to undefined
for (name in old) {
if (!(attrs && attrs[name] != null) && old[name] != null) {
setAccessor(dom, name, old[name], old[name] = undefined, isSvgMode);
}
}
// add new & update changed attributes
for (name in attrs) {
if (name !== 'children' && name !== 'innerHTML' && (!(name in old) || attrs[name] !== (name === 'value' || name === 'checked' ? dom[name] : old[name]))) {
setAccessor(dom, name, old[name], old[name] = attrs[name], isSvgMode);
}
}
}
/** Retains a pool of Components for re-use, keyed on component name.
* Note: since component names are not unique or even necessarily available, these are primarily a form of sharding.
* @private
*/
var components = {};
/** Reclaim a component for later re-use by the recycler. */
function collectComponent(component) {
var name = component.constructor.name;
(components[name] || (components[name] = [])).push(component);
}
/** Create a component. Normalizes differences between PFC's and classful Components. */
function createComponent(Ctor, props, context) {
var list = components[Ctor.name],
inst;
if (Ctor.prototype && Ctor.prototype.render) {
inst = new Ctor(props, context);
Component.call(inst, props, context);
} else {
inst = new Component(props, context);
inst.constructor = Ctor;
inst.render = doRender;
}
if (list) {
for (var i = list.length; i--;) {
if (list[i].constructor === Ctor) {
inst.nextBase = list[i].nextBase;
list.splice(i, 1);
break;
}
}
}
return inst;
}
/** The `.render()` method for a PFC backing instance. */
function doRender(props, state, context) {
return this.constructor(props, context);
}
/** Set a component's `props` (generally derived from JSX attributes).
* @param {Object} props
* @param {Object} [opts]
* @param {boolean} [opts.renderSync=false] If `true` and {@link options.syncComponentUpdates} is `true`, triggers synchronous rendering.
* @param {boolean} [opts.render=true] If `false`, no render will be triggered.
*/
function setComponentProps(component, props, opts, context, mountAll) {
if (component._disable) return;
component._disable = true;
if (component.__ref = props.ref) delete props.ref;
if (component.__key = props.key) delete props.key;
if (!component.base || mountAll) {
if (component.componentWillMount) component.componentWillMount();
} else if (component.componentWillReceiveProps) {
component.componentWillReceiveProps(props, context);
}
if (context && context !== component.context) {
if (!component.prevContext) component.prevContext = component.context;
component.context = context;
}
if (!component.prevProps) component.prevProps = component.props;
component.props = props;
component._disable = false;
if (opts !== 0) {
if (opts === 1 || options.syncComponentUpdates !== false || !component.base) {
renderComponent(component, 1, mountAll);
} else {
enqueueRender(component);
}
}
if (component.__ref) component.__ref(component);
}
/** Render a Component, triggering necessary lifecycle events and taking High-Order Components into account.
* @param {Component} component
* @param {Object} [opts]
* @param {boolean} [opts.build=false] If `true`, component will build and store a DOM node if not already associated with one.
* @private
*/
function renderComponent(component, opts, mountAll, isChild) {
if (component._disable) return;
var props = component.props,
state = component.state,
context = component.context,
previousProps = component.prevProps || props,
previousState = component.prevState || state,
previousContext = component.prevContext || context,
isUpdate = component.base,
nextBase = component.nextBase,
initialBase = isUpdate || nextBase,
initialChildComponent = component._component,
skip = false,
rendered,
inst,
cbase;
// if updating
if (isUpdate) {
component.props = previousProps;
component.state = previousState;
component.context = previousContext;
if (opts !== 2 && component.shouldComponentUpdate && component.shouldComponentUpdate(props, state, context) === false) {
skip = true;
} else if (component.componentWillUpdate) {
component.componentWillUpdate(props, state, context);
}
component.props = props;
component.state = state;
component.context = context;
}
component.prevProps = component.prevState = component.prevContext = component.nextBase = null;
component._dirty = false;
if (!skip) {
rendered = component.render(props, state, context);
// context to pass to the child, can be updated via (grand-)parent component
if (component.getChildContext) {
context = extend(extend({}, context), component.getChildContext());
}
var childComponent = rendered && rendered.nodeName,
toUnmount,
base;
if (typeof childComponent === 'function') {
// set up high order component link
var childProps = getNodeProps(rendered);
inst = initialChildComponent;
if (inst && inst.constructor === childComponent && childProps.key == inst.__key) {
setComponentProps(inst, childProps, 1, context, false);
} else {
toUnmount = inst;
component._component = inst = createComponent(childComponent, childProps, context);
inst.nextBase = inst.nextBase || nextBase;
inst._parentComponent = component;
setComponentProps(inst, childProps, 0, context, false);
renderComponent(inst, 1, mountAll, true);
}
base = inst.base;
} else {
cbase = initialBase;
// destroy high order component link
toUnmount = initialChildComponent;
if (toUnmount) {
cbase = component._component = null;
}
if (initialBase || opts === 1) {
if (cbase) cbase._component = null;
base = diff(cbase, rendered, context, mountAll || !isUpdate, initialBase && initialBase.parentNode, true);
}
}
if (initialBase && base !== initialBase && inst !== initialChildComponent) {
var baseParent = initialBase.parentNode;
if (baseParent && base !== baseParent) {
baseParent.replaceChild(base, initialBase);
if (!toUnmount) {
initialBase._component = null;
recollectNodeTree(initialBase, false);
}
}
}
if (toUnmount) {
unmountComponent(toUnmount);
}
component.base = base;
if (base && !isChild) {
var componentRef = component,
t = component;
while (t = t._parentComponent) {
(componentRef = t).base = base;
}
base._component = componentRef;
base._componentConstructor = componentRef.constructor;
}
}
if (!isUpdate || mountAll) {
mounts.unshift(component);
} else if (!skip) {
// Ensure that pending componentDidMount() hooks of child components
// are called before the componentDidUpdate() hook in the parent.
// Note: disabled as it causes duplicate hooks, see https://github.com/developit/preact/issues/750
// flushMounts();
if (component.componentDidUpdate) {
component.componentDidUpdate(previousProps, previousState, previousContext);
}
if (options.afterUpdate) options.afterUpdate(component);
}
if (component._renderCallbacks != null) {
while (component._renderCallbacks.length) {
component._renderCallbacks.pop().call(component);
}
}
if (!diffLevel && !isChild) flushMounts();
}
/** Apply the Component referenced by a VNode to the DOM.
* @param {Element} dom The DOM node to mutate
* @param {VNode} vnode A Component-referencing VNode
* @returns {Element} dom The created/mutated element
* @private
*/
function buildComponentFromVNode(dom, vnode, context, mountAll) {
var c = dom && dom._component,
originalComponent = c,
oldDom = dom,
isDirectOwner = c && dom._componentConstructor === vnode.nodeName,
isOwner = isDirectOwner,
props = getNodeProps(vnode);
while (c && !isOwner && (c = c._parentComponent)) {
isOwner = c.constructor === vnode.nodeName;
}
if (c && isOwner && (!mountAll || c._component)) {
setComponentProps(c, props, 3, context, mountAll);
dom = c.base;
} else {
if (originalComponent && !isDirectOwner) {
unmountComponent(originalComponent);
dom = oldDom = null;
}
c = createComponent(vnode.nodeName, props, context);
if (dom && !c.nextBase) {
c.nextBase = dom;
// passing dom/oldDom as nextBase will recycle it if unused, so bypass recycling on L229:
oldDom = null;
}
setComponentProps(c, props, 1, context, mountAll);
dom = c.base;
if (oldDom && dom !== oldDom) {
oldDom._component = null;
recollectNodeTree(oldDom, false);
}
}
return dom;
}
/** Remove a component from the DOM and recycle it.
* @param {Component} component The Component instance to unmount
* @private
*/
function unmountComponent(component) {
if (options.beforeUnmount) options.beforeUnmount(component);
var base = component.base;
component._disable = true;
if (component.componentWillUnmount) component.componentWillUnmount();
component.base = null;
// recursively tear down & recollect high-order component children:
var inner = component._component;
if (inner) {
unmountComponent(inner);
} else if (base) {
if (base['__preactattr_'] && base['__preactattr_'].ref) base['__preactattr_'].ref(null);
component.nextBase = base;
removeNode(base);
collectComponent(component);
removeChildren(base);
}
if (component.__ref) component.__ref(null);
}
/** Base Component class.
* Provides `setState()` and `forceUpdate()`, which trigger rendering.
* @public
*
* @example
* class MyFoo extends Component {
* render(props, state) {
* return <div />;
* }
* }
*/
function Component(props, context) {
this._dirty = true;
/** @public
* @type {object}
*/
this.context = context;
/** @public
* @type {object}
*/
this.props = props;
/** @public
* @type {object}
*/
this.state = this.state || {};
}
extend(Component.prototype, {
/** Returns a `boolean` indicating if the component should re-render when receiving the given `props` and `state`.
* @param {object} nextProps
* @param {object} nextState
* @param {object} nextContext
* @returns {Boolean} should the component re-render
* @name shouldComponentUpdate
* @function
*/
/** Update component state by copying properties from `state` to `this.state`.
* @param {object} state A hash of state properties to update with new values
* @param {function} callback A function to be called once component state is updated
*/
setState: function setState(state, callback) {
var s = this.state;
if (!this.prevState) this.prevState = extend({}, s);
extend(s, typeof state === 'function' ? state(s, this.props) : state);
if (callback) (this._renderCallbacks = this._renderCallbacks || []).push(callback);
enqueueRender(this);
},
/** Immediately perform a synchronous re-render of the component.
* @param {function} callback A function to be called after component is re-rendered.
* @private
*/
forceUpdate: function forceUpdate(callback) {
if (callback) (this._renderCallbacks = this._renderCallbacks || []).push(callback);
renderComponent(this, 2);
},
/** Accepts `props` and `state`, and returns a new Virtual DOM tree to build.
* Virtual DOM is generally constructed via [JSX](http://jasonformat.com/wtf-is-jsx).
* @param {object} props Props (eg: JSX attributes) received from parent element/component
* @param {object} state The component's current state
* @param {object} context Context object (if a parent component has provided context)
* @returns VNode
*/
render: function render() {}
});
/** Render JSX into a `parent` Element.
* @param {VNode} vnode A (JSX) VNode to render
* @param {Element} parent DOM element to render into
* @param {Element} [merge] Attempt to re-use an existing DOM tree rooted at `merge`
* @public
*
* @example
* // render a div into <body>:
* render(<div id="hello">hello!</div>, document.body);
*
* @example
* // render a "Thing" component into #foo:
* const Thing = ({ name }) => <span>{ name }</span>;
* render(<Thing name="one" />, document.querySelector('#foo'));
*/
function render(vnode, parent, merge) {
return diff(merge, vnode, {}, false, parent, false);
}
var preact = {
h: h,
createElement: h,
cloneElement: cloneElement,
Component: Component,
render: render,
rerender: rerender,
options: options
};
/* harmony default export */ __webpack_exports__["default"] = (preact);
//# sourceMappingURL=preact.esm.js.map
/***/ }),
/* 5 */
/***/ (function(module, exports, __webpack_require__) {
__webpack_require__(6);
__webpack_require__(7);
module.exports = __webpack_require__(8);
/***/ }),
/* 6 */
/***/ (function(module, exports) {
// removed by extract-text-webpack-plugin
/***/ }),
/* 7 */
/***/ (function(module, exports) {
(function(self) {
'use strict';
if (self.fetch) {
return
}
var support = {
searchParams: 'URLSearchParams' in self,
iterable: 'Symbol' in self && 'iterator' in Symbol,
blob: 'FileReader' in self && 'Blob' in self && (function() {
try {
new Blob()
return true
} catch(e) {
return false
}
})(),
formData: 'FormData' in self,
arrayBuffer: 'ArrayBuffer' in self
}
if (support.arrayBuffer) {
var viewClasses = [
'[object Int8Array]',
'[object Uint8Array]',
'[object Uint8ClampedArray]',
'[object Int16Array]',
'[object Uint16Array]',
'[object Int32Array]',
'[object Uint32Array]',
'[object Float32Array]',
'[object Float64Array]'
]
var isDataView = function(obj) {
return obj && DataView.prototype.isPrototypeOf(obj)
}
var isArrayBufferView = ArrayBuffer.isView || function(obj) {
return obj && viewClasses.indexOf(Object.prototype.toString.call(obj)) > -1
}
}
function normalizeName(name) {
if (typeof name !== 'string') {
name = String(name)
}
if (/[^a-z0-9\-#$%&'*+.\^_`|~]/i.test(name)) {
throw new TypeError('Invalid character in header field name')
}
return name.toLowerCase()
}
function normalizeValue(value) {
if (typeof value !== 'string') {
value = String(value)
}
return value
}
// Build a destructive iterator for the value list
function iteratorFor(items) {
var iterator = {
next: function() {
var value = items.shift()
return {done: value === undefined, value: value}
}
}
if (support.iterable) {
iterator[Symbol.iterator] = function() {
return iterator
}
}
return iterator
}
function Headers(headers) {
this.map = {}
if (headers instanceof Headers) {
headers.forEach(function(value, name) {
this.append(name, value)
}, this)
} else if (Array.isArray(headers)) {
headers.forEach(function(header) {
this.append(header[0], header[1])
}, this)
} else if (headers) {
Object.getOwnPropertyNames(headers).forEach(function(name) {
this.append(name, headers[name])
}, this)
}
}
Headers.prototype.append = function(name, value) {
name = normalizeName(name)
value = normalizeValue(value)
var oldValue = this.map[name]
this.map[name] = oldValue ? oldValue+','+value : value
}
Headers.prototype['delete'] = function(name) {
delete this.map[normalizeName(name)]
}
Headers.prototype.get = function(name) {
name = normalizeName(name)
return t