hdjs
Version:
hdjs framework
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JavaScript
/*! WebUploader 0.1.6 */
/**
* @fileOverview 让内部各个部件的代码可以用[amd](https://github.com/amdjs/amdjs-api/wiki/AMD)模块定义方式组织起来。
*
* AMD API 内部的简单不完全实现,请忽略。只有当WebUploader被合并成一个文件的时候才会引入。
*/
(function( root, factory ) {
var modules = {},
// 内部require, 简单不完全实现。
// https://github.com/amdjs/amdjs-api/wiki/require
_require = function( deps, callback ) {
var args, len, i;
// 如果deps不是数组,则直接返回指定module
if ( typeof deps === 'string' ) {
return getModule( deps );
} else {
args = [];
for( len = deps.length, i = 0; i < len; i++ ) {
args.push( getModule( deps[ i ] ) );
}
return callback.apply( null, args );
}
},
// 内部define,暂时不支持不指定id.
_define = function( id, deps, factory ) {
if ( arguments.length === 2 ) {
factory = deps;
deps = null;
}
_require( deps || [], function() {
setModule( id, factory, arguments );
});
},
// 设置module, 兼容CommonJs写法。
setModule = function( id, factory, args ) {
var module = {
exports: factory
},
returned;
if ( typeof factory === 'function' ) {
args.length || (args = [ _require, module.exports, module ]);
returned = factory.apply( null, args );
returned !== undefined && (module.exports = returned);
}
modules[ id ] = module.exports;
},
// 根据id获取module
getModule = function( id ) {
var module = modules[ id ] || root[ id ];
if ( !module ) {
throw new Error( '`' + id + '` is undefined' );
}
return module;
},
// 将所有modules,将路径ids装换成对象。
exportsTo = function( obj ) {
var key, host, parts, part, last, ucFirst;
// make the first character upper case.
ucFirst = function( str ) {
return str && (str.charAt( 0 ).toUpperCase() + str.substr( 1 ));
};
for ( key in modules ) {
host = obj;
if ( !modules.hasOwnProperty( key ) ) {
continue;
}
parts = key.split('/');
last = ucFirst( parts.pop() );
while( (part = ucFirst( parts.shift() )) ) {
host[ part ] = host[ part ] || {};
host = host[ part ];
}
host[ last ] = modules[ key ];
}
return obj;
},
makeExport = function( dollar ) {
root.__dollar = dollar;
// exports every module.
return exportsTo( factory( root, _define, _require ) );
},
origin;
if ( typeof module === 'object' && typeof module.exports === 'object' ) {
// For CommonJS and CommonJS-like environments where a proper window is present,
module.exports = makeExport();
} else if ( typeof define === 'function' && define.amd ) {
// Allow using this built library as an AMD module
// in another project. That other project will only
// see this AMD call, not the internal modules in
// the closure below.
define([ 'jquery' ], makeExport );
} else {
// Browser globals case. Just assign the
// result to a property on the global.
origin = root.WebUploader;
root.WebUploader = makeExport();
root.WebUploader.noConflict = function() {
root.WebUploader = origin;
};
}
})( window, function( window, define, require ) {
/**
* @fileOverview jq-bridge 主要实现像jQuery一样的功能方法,可以替换成jQuery,
* 这里只实现了此组件所需的部分。
*
* **此文件的代码还不可用,还是直接用jquery吧**
* @beta
*/
define('dollar-builtin',[],function() {
var doc = window.document,
emptyArray = [],
slice = emptyArray.slice,
class2type = {},
hasOwn = class2type.hasOwnProperty,
toString = class2type.toString,
rId = /^#(.*)$/;
function each( obj, iterator ) {
var i;
//add guard here
if(!obj) {
return;
}
// like array
if ( typeof obj !== 'function' && typeof obj.length === 'number' ) {
for ( i = 0; i < obj.length; i++ ) {
if ( iterator.call( obj[ i ], i, obj[ i ] ) === false ) {
return obj;
}
}
} else {
for ( i in obj ) {
if ( hasOwn.call( obj, i ) && iterator.call( obj[ i ], i,
obj[ i ] ) === false ) {
return obj;
}
}
}
return obj;
}
function extend( target, source, deep ) {
each( source, function( key, val ) {
if ( deep && typeof val === 'object' ) {
if ( typeof target[ key ] !== 'object' ) {
target[ key ] = type( val ) === 'array' ? [] : {};
}
extend( target[ key ], val, deep );
} else {
target[ key ] = val;
}
});
}
each( ('Boolean Number String Function Array Date RegExp Object' +
' Error').split(' '), function( i, name ) {
class2type[ '[object ' + name + ']' ] = name.toLowerCase();
});
function setAttribute( node, name, value ) {
value == null ? node.removeAttribute( name ) :
node.setAttribute( name, value );
}
/**
* 只支持ID选择。
*/
function $( elem ) {
var api = {};
elem = typeof elem === 'string' && rId.test( elem ) ?
doc.getElementById( RegExp.$1 ) : elem;
if ( elem ) {
api[ 0 ] = elem;
api.length = 1;
}
return $.extend( api, {
_wrap: true,
get: function() {
return elem;
},
/**
* 添加className
*/
addClass: function( classname ) {
elem.classList.add( classname );
return this;
},
removeClass: function( classname ) {
elem.classList.remove( classname );
return this;
},
//$(...).each is used in the source
each: function(callback){
[].every.call(this, function(el, idx){
return callback.call(el, idx, el) !== false
})
return this
},
html: function( html ) {
if ( html ) {
elem.innerHTML = html;
}
return elem.innerHTML;
},
attr: function( key, val ) {
if ( $.isObject( key ) ) {
$.each( key, function( k, v ) {
setAttribute( elem, k, v );
});
} else {
setAttribute( elem, key, val );
}
},
empty: function() {
elem.innerHTML = '';
return this;
},
before: function( el ) {
elem.parentNode.insertBefore( el, elem );
},
append: function( el ) {
el = el._wrap ? el.get() : el;
elem.appendChild( el );
},
text: function() {
return elem.textContent;
},
// on
on: function( type, fn ) {
if ( elem.addEventListener ) {
elem.addEventListener( type, fn, false );
} else if ( elem.attachEvent ) {
elem.attachEvent( 'on' + type, fn );
}
return this;
},
// off
off: function( type, fn ) {
if ( elem.removeEventListener ) {
elem.removeEventListener( type, fn, false );
} else if ( elem.attachEvent ) {
elem.detachEvent( 'on' + type, fn );
}
return this;
}
});
}
$.each = each;
$.extend = function( /*[deep, ]*/target/*, source...*/ ) {
var args = slice.call( arguments, 1 ),
deep;
if ( typeof target === 'boolean' ) {
deep = target;
target = args.shift();
}
args.forEach(function( arg ) {
arg && extend( target, arg, deep );
});
return target;
};
function type( obj ) {
/*jshint eqnull:true*/
return obj == null ? String( obj ) :
class2type[ toString.call( obj ) ] || 'object';
}
$.type = type;
//$.grep is used in the source
$.grep = function( elems, callback, invert ) {
var callbackInverse,
matches = [],
i = 0,
length = elems.length,
callbackExpect = !invert;
// Go through the array, only saving the items
// that pass the validator function
for ( ; i < length; i++ ) {
callbackInverse = !callback( elems[ i ], i );
if ( callbackInverse !== callbackExpect ) {
matches.push( elems[ i ] );
}
}
return matches;
}
$.isWindow = function( obj ) {
return obj && obj.window === obj;
};
$.isPlainObject = function( obj ) {
if ( type( obj ) !== 'object' || obj.nodeType || $.isWindow( obj ) ) {
return false;
}
try {
if ( obj.constructor && !hasOwn.call( obj.constructor.prototype,
'isPrototypeOf' ) ) {
return false;
}
} catch ( ex ) {
return false;
}
return true;
};
$.isObject = function( anything ) {
return type( anything ) === 'object';
};
$.trim = function( str ) {
return str ? str.trim() : '';
};
$.isFunction = function( obj ) {
return type( obj ) === 'function';
};
emptyArray = null;
return $;
});
define('dollar',[
'dollar-builtin'
], function( $ ) {
return $;
});
/**
* 直接来源于jquery的代码。
* @fileOverview Promise/A+
* @beta
*/
define('promise-builtin',[
'dollar'
], function( $ ) {
var api;
// 简单版Callbacks, 默认memory,可选once.
function Callbacks( once ) {
var list = [],
stack = !once && [],
fire = function( data ) {
memory = data;
fired = true;
firingIndex = firingStart || 0;
firingStart = 0;
firingLength = list.length;
firing = true;
for ( ; list && firingIndex < firingLength; firingIndex++ ) {
list[ firingIndex ].apply( data[ 0 ], data[ 1 ] );
}
firing = false;
if ( list ) {
if ( stack ) {
stack.length && fire( stack.shift() );
} else {
list = [];
}
}
},
self = {
add: function() {
if ( list ) {
var start = list.length;
(function add ( args ) {
$.each( args, function( _, arg ) {
var type = $.type( arg );
if ( type === 'function' ) {
list.push( arg );
} else if ( arg && arg.length &&
type !== 'string' ) {
add( arg );
}
});
})( arguments );
if ( firing ) {
firingLength = list.length;
} else if ( memory ) {
firingStart = start;
fire( memory );
}
}
return this;
},
disable: function() {
list = stack = memory = undefined;
return this;
},
// Lock the list in its current state
lock: function() {
stack = undefined;
if ( !memory ) {
self.disable();
}
return this;
},
fireWith: function( context, args ) {
if ( list && (!fired || stack) ) {
args = args || [];
args = [ context, args.slice ? args.slice() : args ];
if ( firing ) {
stack.push( args );
} else {
fire( args );
}
}
return this;
},
fire: function() {
self.fireWith( this, arguments );
return this;
}
},
fired, firing, firingStart, firingLength, firingIndex, memory;
return self;
}
function Deferred( func ) {
var tuples = [
// action, add listener, listener list, final state
[ 'resolve', 'done', Callbacks( true ), 'resolved' ],
[ 'reject', 'fail', Callbacks( true ), 'rejected' ],
[ 'notify', 'progress', Callbacks() ]
],
state = 'pending',
promise = {
state: function() {
return state;
},
always: function() {
deferred.done( arguments ).fail( arguments );
return this;
},
then: function( /* fnDone, fnFail, fnProgress */ ) {
var fns = arguments;
return Deferred(function( newDefer ) {
$.each( tuples, function( i, tuple ) {
var action = tuple[ 0 ],
fn = $.isFunction( fns[ i ] ) && fns[ i ];
// deferred[ done | fail | progress ] for
// forwarding actions to newDefer
deferred[ tuple[ 1 ] ](function() {
var returned;
returned = fn && fn.apply( this, arguments );
if ( returned &&
$.isFunction( returned.promise ) ) {
returned.promise()
.done( newDefer.resolve )
.fail( newDefer.reject )
.progress( newDefer.notify );
} else {
newDefer[ action + 'With' ](
this === promise ?
newDefer.promise() :
this,
fn ? [ returned ] : arguments );
}
});
});
fns = null;
}).promise();
},
// Get a promise for this deferred
// If obj is provided, the promise aspect is added to the object
promise: function( obj ) {
return obj != null ? $.extend( obj, promise ) : promise;
}
},
deferred = {};
// Keep pipe for back-compat
promise.pipe = promise.then;
// Add list-specific methods
$.each( tuples, function( i, tuple ) {
var list = tuple[ 2 ],
stateString = tuple[ 3 ];
// promise[ done | fail | progress ] = list.add
promise[ tuple[ 1 ] ] = list.add;
// Handle state
if ( stateString ) {
list.add(function() {
// state = [ resolved | rejected ]
state = stateString;
// [ reject_list | resolve_list ].disable; progress_list.lock
}, tuples[ i ^ 1 ][ 2 ].disable, tuples[ 2 ][ 2 ].lock );
}
// deferred[ resolve | reject | notify ]
deferred[ tuple[ 0 ] ] = function() {
deferred[ tuple[ 0 ] + 'With' ]( this === deferred ? promise :
this, arguments );
return this;
};
deferred[ tuple[ 0 ] + 'With' ] = list.fireWith;
});
// Make the deferred a promise
promise.promise( deferred );
// Call given func if any
if ( func ) {
func.call( deferred, deferred );
}
// All done!
return deferred;
}
api = {
/**
* 创建一个[Deferred](http://api.jquery.com/category/deferred-object/)对象。
* 详细的Deferred用法说明,请参照jQuery的API文档。
*
* Deferred对象在钩子回掉函数中经常要用到,用来处理需要等待的异步操作。
*
* @for Base
* @method Deferred
* @grammar Base.Deferred() => Deferred
* @example
* // 在文件开始发送前做些异步操作。
* // WebUploader会等待此异步操作完成后,开始发送文件。
* Uploader.register({
* 'before-send-file': 'doSomthingAsync'
* }, {
*
* doSomthingAsync: function() {
* var deferred = Base.Deferred();
*
* // 模拟一次异步操作。
* setTimeout(deferred.resolve, 2000);
*
* return deferred.promise();
* }
* });
*/
Deferred: Deferred,
/**
* 判断传入的参数是否为一个promise对象。
* @method isPromise
* @grammar Base.isPromise( anything ) => Boolean
* @param {*} anything 检测对象。
* @return {Boolean}
* @for Base
* @example
* console.log( Base.isPromise() ); // => false
* console.log( Base.isPromise({ key: '123' }) ); // => false
* console.log( Base.isPromise( Base.Deferred().promise() ) ); // => true
*
* // Deferred也是一个Promise
* console.log( Base.isPromise( Base.Deferred() ) ); // => true
*/
isPromise: function( anything ) {
return anything && typeof anything.then === 'function';
},
/**
* 返回一个promise,此promise在所有传入的promise都完成了后完成。
* 详细请查看[这里](http://api.jquery.com/jQuery.when/)。
*
* @method when
* @for Base
* @grammar Base.when( promise1[, promise2[, promise3...]] ) => Promise
*/
when: function( subordinate /* , ..., subordinateN */ ) {
var i = 0,
slice = [].slice,
resolveValues = slice.call( arguments ),
length = resolveValues.length,
// the count of uncompleted subordinates
remaining = length !== 1 || (subordinate &&
$.isFunction( subordinate.promise )) ? length : 0,
// the master Deferred. If resolveValues consist of
// only a single Deferred, just use that.
deferred = remaining === 1 ? subordinate : Deferred(),
// Update function for both resolve and progress values
updateFunc = function( i, contexts, values ) {
return function( value ) {
contexts[ i ] = this;
values[ i ] = arguments.length > 1 ?
slice.call( arguments ) : value;
if ( values === progressValues ) {
deferred.notifyWith( contexts, values );
} else if ( !(--remaining) ) {
deferred.resolveWith( contexts, values );
}
};
},
progressValues, progressContexts, resolveContexts;
// add listeners to Deferred subordinates; treat others as resolved
if ( length > 1 ) {
progressValues = new Array( length );
progressContexts = new Array( length );
resolveContexts = new Array( length );
for ( ; i < length; i++ ) {
if ( resolveValues[ i ] &&
$.isFunction( resolveValues[ i ].promise ) ) {
resolveValues[ i ].promise()
.done( updateFunc( i, resolveContexts,
resolveValues ) )
.fail( deferred.reject )
.progress( updateFunc( i, progressContexts,
progressValues ) );
} else {
--remaining;
}
}
}
// if we're not waiting on anything, resolve the master
if ( !remaining ) {
deferred.resolveWith( resolveContexts, resolveValues );
}
return deferred.promise();
}
};
return api;
});
define('promise',[
'promise-builtin'
], function( $ ) {
return $;
});
/**
* @fileOverview 基础类方法。
*/
/**
* Web Uploader内部类的详细说明,以下提及的功能类,都可以在`WebUploader`这个变量中访问到。
*
* As you know, Web Uploader的每个文件都是用过[AMD](https://github.com/amdjs/amdjs-api/wiki/AMD)规范中的`define`组织起来的, 每个Module都会有个module id.
* 默认module id为该文件的路径,而此路径将会转化成名字空间存放在WebUploader中。如:
*
* * module `base`:WebUploader.Base
* * module `file`: WebUploader.File
* * module `lib/dnd`: WebUploader.Lib.Dnd
* * module `runtime/html5/dnd`: WebUploader.Runtime.Html5.Dnd
*
*
* 以下文档中对类的使用可能省略掉了`WebUploader`前缀。
* @module WebUploader
* @title WebUploader API文档
*/
define('base',[
'dollar',
'promise'
], function( $, promise ) {
var noop = function() {},
call = Function.call;
// http://jsperf.com/uncurrythis
// 反科里化
function uncurryThis( fn ) {
return function() {
return call.apply( fn, arguments );
};
}
function bindFn( fn, context ) {
return function() {
return fn.apply( context, arguments );
};
}
function createObject( proto ) {
var f;
if ( Object.create ) {
return Object.create( proto );
} else {
f = function() {};
f.prototype = proto;
return new f();
}
}
/**
* 基础类,提供一些简单常用的方法。
* @class Base
*/
return {
/**
* @property {String} version 当前版本号。
*/
version: '0.1.6',
/**
* @property {jQuery|Zepto} $ 引用依赖的jQuery或者Zepto对象。
*/
$: $,
Deferred: promise.Deferred,
isPromise: promise.isPromise,
when: promise.when,
/**
* @description 简单的浏览器检查结果。
*
* * `webkit` webkit版本号,如果浏览器为非webkit内核,此属性为`undefined`。
* * `chrome` chrome浏览器版本号,如果浏览器为chrome,此属性为`undefined`。
* * `ie` ie浏览器版本号,如果浏览器为非ie,此属性为`undefined`。**暂不支持ie10+**
* * `firefox` firefox浏览器版本号,如果浏览器为非firefox,此属性为`undefined`。
* * `safari` safari浏览器版本号,如果浏览器为非safari,此属性为`undefined`。
* * `opera` opera浏览器版本号,如果浏览器为非opera,此属性为`undefined`。
*
* @property {Object} [browser]
*/
browser: (function( ua ) {
var ret = {},
webkit = ua.match( /WebKit\/([\d.]+)/ ),
chrome = ua.match( /Chrome\/([\d.]+)/ ) ||
ua.match( /CriOS\/([\d.]+)/ ),
ie = ua.match( /MSIE\s([\d\.]+)/ ) ||
ua.match( /(?:trident)(?:.*rv:([\w.]+))?/i ),
firefox = ua.match( /Firefox\/([\d.]+)/ ),
safari = ua.match( /Safari\/([\d.]+)/ ),
opera = ua.match( /OPR\/([\d.]+)/ );
webkit && (ret.webkit = parseFloat( webkit[ 1 ] ));
chrome && (ret.chrome = parseFloat( chrome[ 1 ] ));
ie && (ret.ie = parseFloat( ie[ 1 ] ));
firefox && (ret.firefox = parseFloat( firefox[ 1 ] ));
safari && (ret.safari = parseFloat( safari[ 1 ] ));
opera && (ret.opera = parseFloat( opera[ 1 ] ));
return ret;
})( navigator.userAgent ),
/**
* @description 操作系统检查结果。
*
* * `android` 如果在android浏览器环境下,此值为对应的android版本号,否则为`undefined`。
* * `ios` 如果在ios浏览器环境下,此值为对应的ios版本号,否则为`undefined`。
* @property {Object} [os]
*/
os: (function( ua ) {
var ret = {},
// osx = !!ua.match( /\(Macintosh\; Intel / ),
android = ua.match( /(?:Android);?[\s\/]+([\d.]+)?/ ),
ios = ua.match( /(?:iPad|iPod|iPhone).*OS\s([\d_]+)/ );
// osx && (ret.osx = true);
android && (ret.android = parseFloat( android[ 1 ] ));
ios && (ret.ios = parseFloat( ios[ 1 ].replace( /_/g, '.' ) ));
return ret;
})( navigator.userAgent ),
/**
* 实现类与类之间的继承。
* @method inherits
* @grammar Base.inherits( super ) => child
* @grammar Base.inherits( super, protos ) => child
* @grammar Base.inherits( super, protos, statics ) => child
* @param {Class} super 父类
* @param {Object | Function} [protos] 子类或者对象。如果对象中包含constructor,子类将是用此属性值。
* @param {Function} [protos.constructor] 子类构造器,不指定的话将创建个临时的直接执行父类构造器的方法。
* @param {Object} [statics] 静态属性或方法。
* @return {Class} 返回子类。
* @example
* function Person() {
* console.log( 'Super' );
* }
* Person.prototype.hello = function() {
* console.log( 'hello' );
* };
*
* var Manager = Base.inherits( Person, {
* world: function() {
* console.log( 'World' );
* }
* });
*
* // 因为没有指定构造器,父类的构造器将会执行。
* var instance = new Manager(); // => Super
*
* // 继承子父类的方法
* instance.hello(); // => hello
* instance.world(); // => World
*
* // 子类的__super__属性指向父类
* console.log( Manager.__super__ === Person ); // => true
*/
inherits: function( Super, protos, staticProtos ) {
var child;
if ( typeof protos === 'function' ) {
child = protos;
protos = null;
} else if ( protos && protos.hasOwnProperty('constructor') ) {
child = protos.constructor;
} else {
child = function() {
return Super.apply( this, arguments );
};
}
// 复制静态方法
$.extend( true, child, Super, staticProtos || {} );
/* jshint camelcase: false */
// 让子类的__super__属性指向父类。
child.__super__ = Super.prototype;
// 构建原型,添加原型方法或属性。
// 暂时用Object.create实现。
child.prototype = createObject( Super.prototype );
protos && $.extend( true, child.prototype, protos );
return child;
},
/**
* 一个不做任何事情的方法。可以用来赋值给默认的callback.
* @method noop
*/
noop: noop,
/**
* 返回一个新的方法,此方法将已指定的`context`来执行。
* @grammar Base.bindFn( fn, context ) => Function
* @method bindFn
* @example
* var doSomething = function() {
* console.log( this.name );
* },
* obj = {
* name: 'Object Name'
* },
* aliasFn = Base.bind( doSomething, obj );
*
* aliasFn(); // => Object Name
*
*/
bindFn: bindFn,
/**
* 引用Console.log如果存在的话,否则引用一个[空函数noop](#WebUploader:Base.noop)。
* @grammar Base.log( args... ) => undefined
* @method log
*/
log: (function() {
if ( window.console ) {
return bindFn( console.log, console );
}
return noop;
})(),
nextTick: (function() {
return function( cb ) {
setTimeout( cb, 1 );
};
// @bug 当浏览器不在当前窗口时就停了。
// var next = window.requestAnimationFrame ||
// window.webkitRequestAnimationFrame ||
// window.mozRequestAnimationFrame ||
// function( cb ) {
// window.setTimeout( cb, 1000 / 60 );
// };
// // fix: Uncaught TypeError: Illegal invocation
// return bindFn( next, window );
})(),
/**
* 被[uncurrythis](http://www.2ality.com/2011/11/uncurrying-this.html)的数组slice方法。
* 将用来将非数组对象转化成数组对象。
* @grammar Base.slice( target, start[, end] ) => Array
* @method slice
* @example
* function doSomthing() {
* var args = Base.slice( arguments, 1 );
* console.log( args );
* }
*
* doSomthing( 'ignored', 'arg2', 'arg3' ); // => Array ["arg2", "arg3"]
*/
slice: uncurryThis( [].slice ),
/**
* 生成唯一的ID
* @method guid
* @grammar Base.guid() => String
* @grammar Base.guid( prefx ) => String
*/
guid: (function() {
var counter = 0;
return function( prefix ) {
var guid = (+new Date()).toString( 32 ),
i = 0;
for ( ; i < 5; i++ ) {
guid += Math.floor( Math.random() * 65535 ).toString( 32 );
}
return (prefix || 'wu_') + guid + (counter++).toString( 32 );
};
})(),
/**
* 格式化文件大小, 输出成带单位的字符串
* @method formatSize
* @grammar Base.formatSize( size ) => String
* @grammar Base.formatSize( size, pointLength ) => String
* @grammar Base.formatSize( size, pointLength, units ) => String
* @param {Number} size 文件大小
* @param {Number} [pointLength=2] 精确到的小数点数。
* @param {Array} [units=[ 'B', 'K', 'M', 'G', 'TB' ]] 单位数组。从字节,到千字节,一直往上指定。如果单位数组里面只指定了到了K(千字节),同时文件大小大于M, 此方法的输出将还是显示成多少K.
* @example
* console.log( Base.formatSize( 100 ) ); // => 100B
* console.log( Base.formatSize( 1024 ) ); // => 1.00K
* console.log( Base.formatSize( 1024, 0 ) ); // => 1K
* console.log( Base.formatSize( 1024 * 1024 ) ); // => 1.00M
* console.log( Base.formatSize( 1024 * 1024 * 1024 ) ); // => 1.00G
* console.log( Base.formatSize( 1024 * 1024 * 1024, 0, ['B', 'KB', 'MB'] ) ); // => 1024MB
*/
formatSize: function( size, pointLength, units ) {
var unit;
units = units || [ 'B', 'K', 'M', 'G', 'TB' ];
while ( (unit = units.shift()) && size > 1024 ) {
size = size / 1024;
}
return (unit === 'B' ? size : size.toFixed( pointLength || 2 )) +
unit;
}
};
});
/**
* 事件处理类,可以独立使用,也可以扩展给对象使用。
* @fileOverview Mediator
*/
define('mediator',[
'base'
], function( Base ) {
var $ = Base.$,
slice = [].slice,
separator = /\s+/,
protos;
// 根据条件过滤出事件handlers.
function findHandlers( arr, name, callback, context ) {
return $.grep( arr, function( handler ) {
return handler &&
(!name || handler.e === name) &&
(!callback || handler.cb === callback ||
handler.cb._cb === callback) &&
(!context || handler.ctx === context);
});
}
function eachEvent( events, callback, iterator ) {
// 不支持对象,只支持多个event用空格隔开
$.each( (events || '').split( separator ), function( _, key ) {
iterator( key, callback );
});
}
function triggerHanders( events, args ) {
var stoped = false,
i = -1,
len = events.length,
handler;
while ( ++i < len ) {
handler = events[ i ];
if ( handler.cb.apply( handler.ctx2, args ) === false ) {
stoped = true;
break;
}
}
return !stoped;
}
protos = {
/**
* 绑定事件。
*
* `callback`方法在执行时,arguments将会来源于trigger的时候携带的参数。如
* ```javascript
* var obj = {};
*
* // 使得obj有事件行为
* Mediator.installTo( obj );
*
* obj.on( 'testa', function( arg1, arg2 ) {
* console.log( arg1, arg2 ); // => 'arg1', 'arg2'
* });
*
* obj.trigger( 'testa', 'arg1', 'arg2' );
* ```
*
* 如果`callback`中,某一个方法`return false`了,则后续的其他`callback`都不会被执行到。
* 切会影响到`trigger`方法的返回值,为`false`。
*
* `on`还可以用来添加一个特殊事件`all`, 这样所有的事件触发都会响应到。同时此类`callback`中的arguments有一个不同处,
* 就是第一个参数为`type`,记录当前是什么事件在触发。此类`callback`的优先级比脚低,会再正常`callback`执行完后触发。
* ```javascript
* obj.on( 'all', function( type, arg1, arg2 ) {
* console.log( type, arg1, arg2 ); // => 'testa', 'arg1', 'arg2'
* });
* ```
*
* @method on
* @grammar on( name, callback[, context] ) => self
* @param {String} name 事件名,支持多个事件用空格隔开
* @param {Function} callback 事件处理器
* @param {Object} [context] 事件处理器的上下文。
* @return {self} 返回自身,方便链式
* @chainable
* @class Mediator
*/
on: function( name, callback, context ) {
var me = this,
set;
if ( !callback ) {
return this;
}
set = this._events || (this._events = []);
eachEvent( name, callback, function( name, callback ) {
var handler = { e: name };
handler.cb = callback;
handler.ctx = context;
handler.ctx2 = context || me;
handler.id = set.length;
set.push( handler );
});
return this;
},
/**
* 绑定事件,且当handler执行完后,自动解除绑定。
* @method once
* @grammar once( name, callback[, context] ) => self
* @param {String} name 事件名
* @param {Function} callback 事件处理器
* @param {Object} [context] 事件处理器的上下文。
* @return {self} 返回自身,方便链式
* @chainable
*/
once: function( name, callback, context ) {
var me = this;
if ( !callback ) {
return me;
}
eachEvent( name, callback, function( name, callback ) {
var once = function() {
me.off( name, once );
return callback.apply( context || me, arguments );
};
once._cb = callback;
me.on( name, once, context );
});
return me;
},
/**
* 解除事件绑定
* @method off
* @grammar off( [name[, callback[, context] ] ] ) => self
* @param {String} [name] 事件名
* @param {Function} [callback] 事件处理器
* @param {Object} [context] 事件处理器的上下文。
* @return {self} 返回自身,方便链式
* @chainable
*/
off: function( name, cb, ctx ) {
var events = this._events;
if ( !events ) {
return this;
}
if ( !name && !cb && !ctx ) {
this._events = [];
return this;
}
eachEvent( name, cb, function( name, cb ) {
$.each( findHandlers( events, name, cb, ctx ), function() {
delete events[ this.id ];
});
});
return this;
},
/**
* 触发事件
* @method trigger
* @grammar trigger( name[, args...] ) => self
* @param {String} type 事件名
* @param {*} [...] 任意参数
* @return {Boolean} 如果handler中return false了,则返回false, 否则返回true
*/
trigger: function( type ) {
var args, events, allEvents;
if ( !this._events || !type ) {
return this;
}
args = slice.call( arguments, 1 );
events = findHandlers( this._events, type );
allEvents = findHandlers( this._events, 'all' );
return triggerHanders( events, args ) &&
triggerHanders( allEvents, arguments );
}
};
/**
* 中介者,它本身是个单例,但可以通过[installTo](#WebUploader:Mediator:installTo)方法,使任何对象具备事件行为。
* 主要目的是负责模块与模块之间的合作,降低耦合度。
*
* @class Mediator
*/
return $.extend({
/**
* 可以通过这个接口,使任何对象具备事件功能。
* @method installTo
* @param {Object} obj 需要具备事件行为的对象。
* @return {Object} 返回obj.
*/
installTo: function( obj ) {
return $.extend( obj, protos );
}
}, protos );
});
/**
* @fileOverview Uploader上传类
*/
define('uploader',[
'base',
'mediator'
], function( Base, Mediator ) {
var $ = Base.$;
/**
* 上传入口类。
* @class Uploader
* @constructor
* @grammar new Uploader( opts ) => Uploader
* @example
* var uploader = WebUploader.Uploader({
* swf: 'path_of_swf/Uploader.swf',
*
* // 开起分片上传。
* chunked: true
* });
*/
function Uploader( opts ) {
this.options = $.extend( true, {}, Uploader.options, opts );
this._init( this.options );
}
// default Options
// widgets中有相应扩展
Uploader.options = {};
Mediator.installTo( Uploader.prototype );
// 批量添加纯命令式方法。
$.each({
upload: 'start-upload',
stop: 'stop-upload',
getFile: 'get-file',
getFiles: 'get-files',
addFile: 'add-file',
addFiles: 'add-file',
sort: 'sort-files',
removeFile: 'remove-file',
cancelFile: 'cancel-file',
skipFile: 'skip-file',
retry: 'retry',
isInProgress: 'is-in-progress',
makeThumb: 'make-thumb',
md5File: 'md5-file',
getDimension: 'get-dimension',
addButton: 'add-btn',
predictRuntimeType: 'predict-runtime-type',
refresh: 'refresh',
disable: 'disable',
enable: 'enable',
reset: 'reset'
}, function( fn, command ) {
Uploader.prototype[ fn ] = function() {
return this.request( command, arguments );
};
});
$.extend( Uploader.prototype, {
state: 'pending',
_init: function( opts ) {
var me = this;
me.request( 'init', opts, function() {
me.state = 'ready';
me.trigger('ready');
});
},
/**
* 获取或者设置Uploader配置项。
* @method option
* @grammar option( key ) => *
* @grammar option( key, val ) => self
* @example
*
* // 初始状态图片上传前不会压缩
* var uploader = new WebUploader.Uploader({
* compress: null;
* });
*
* // 修改后图片上传前,尝试将图片压缩到1600 * 1600
* uploader.option( 'compress', {
* width: 1600,
* height: 1600
* });
*/
option: function( key, val ) {
var opts = this.options;
// setter
if ( arguments.length > 1 ) {
if ( $.isPlainObject( val ) &&
$.isPlainObject( opts[ key ] ) ) {
$.extend( opts[ key ], val );
} else {
opts[ key ] = val;
}
} else { // getter
return key ? opts[ key ] : opts;
}
},
/**
* 获取文件统计信息。返回一个包含一下信息的对象。
* * `successNum` 上传成功的文件数
* * `progressNum` 上传中的文件数
* * `cancelNum` 被删除的文件数
* * `invalidNum` 无效的文件数
* * `uploadFailNum` 上传失败的文件数
* * `queueNum` 还在队列中的文件数
* * `interruptNum` 被暂停的文件数
* @method getStats
* @grammar getStats() => Object
*/
getStats: function() {
// return this._mgr.getStats.apply( this._mgr, arguments );
var stats = this.request('get-stats');
return stats ? {
successNum: stats.numOfSuccess,
progressNum: stats.numOfProgress,
// who care?
// queueFailNum: 0,
cancelNum: stats.numOfCancel,
invalidNum: stats.numOfInvalid,
uploadFailNum: stats.numOfUploadFailed,
queueNum: stats.numOfQueue,
interruptNum: stats.numofInterrupt
} : {};
},
// 需要重写此方法来来支持opts.onEvent和instance.onEvent的处理器
trigger: function( type/*, args...*/ ) {
var args = [].slice.call( arguments, 1 ),
opts = this.options,
name = 'on' + type.substring( 0, 1 ).toUpperCase() +
type.substring( 1 );
if (
// 调用通过on方法注册的handler.
Mediator.trigger.apply( this, arguments ) === false ||
// 调用opts.onEvent
$.isFunction( opts[ name ] ) &&
opts[ name ].apply( this, args ) === false ||
// 调用this.onEvent
$.isFunction( this[ name ] ) &&
this[ name ].apply( this, args ) === false ||
// 广播所有uploader的事件。
Mediator.trigger.apply( Mediator,
[ this, type ].concat( args ) ) === false ) {
return false;
}
return true;
},
/**
* 销毁 webuploader 实例
* @method destroy
* @grammar destroy() => undefined
*/
destroy: function() {
this.request( 'destroy', arguments );
this.off();
},
// widgets/widget.js将补充此方法的详细文档。
request: Base.noop
});
/**
* 创建Uploader实例,等同于new Uploader( opts );
* @method create
* @class Base
* @static
* @grammar Base.create( opts ) => Uploader
*/
Base.create = Uploader.create = function( opts ) {
return new Uploader( opts );
};
// 暴露Uploader,可以通过它来扩展业务逻辑。
Base.Uploader = Uploader;
return Uploader;
});
/**
* @fileOverview Runtime管理器,负责Runtime的选择, 连接
*/
define('runtime/runtime',[
'base',
'mediator'
], function( Base, Mediator ) {
var $ = Base.$,
factories = {},
// 获取对象的第一个key
getFirstKey = function( obj ) {
for ( var key in obj ) {
if ( obj.hasOwnProperty( key ) ) {
return key;
}
}
return null;
};
// 接口类。
function Runtime( options ) {
this.options = $.extend({
container: document.body
}, options );
this.uid = Base.guid('rt_');
}
$.extend( Runtime.prototype, {
getContainer: function() {
var opts = this.options,
parent, container;
if ( this._container ) {
return this._container;
}
parent = $( opts.container || document.body );
container = $( document.createElement('div') );
container.attr( 'id', 'rt_' + this.u