Webuploader圖片上傳控制元件的使用,專案中都可以引用
阿新 • • 發佈:2019-01-19
// 當domReady的時候開始初始化
$(function() {
var $wrap = $('#uploader'),
// 圖片容器
$queue = $( '<ul class="filelist"></ul>' )
.appendTo( $wrap.find( '.queueList' ) ),
// 狀態列,包括進度和控制按鈕
$statusBar = $wrap.find( '.statusBar' ),
// 檔案總體選擇資訊。
$info = $statusBar.find( '.info' ),
// 上傳按鈕
$upload = $wrap.find( '.uploadBtn' ),
// 沒選擇檔案之前的內容。
$placeHolder = $wrap.find( '.placeholder' ),
$progress = $statusBar.find( '.progress' ).hide(),
// 新增的檔案數量
fileCount = 0 ,
// 新增的檔案總大小
fileSize = 0,
// 優化retina, 在retina下這個值是2
ratio = window.devicePixelRatio || 1,
// 縮圖大小
thumbnailWidth = 110 * ratio,
thumbnailHeight = 110 * ratio,
// 可能有pedding, ready, uploading, confirm, done.
state = 'pedding' ,
// 所有檔案的進度資訊,key為file id
percentages = {},
// 判斷瀏覽器是否支援圖片的base64
isSupportBase64 = ( function() {
var data = new Image();
var support = true;
data.onload = data.onerror = function() {
if( this.width != 1 || this.height != 1 ) {
support = false;
}
}
data.src = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==";
return support;
} )(),
// 檢測是否已經安裝flash,檢測flash的版本
flashVersion = ( function() {
var version;
try {
version = navigator.plugins[ 'Shockwave Flash' ];
version = version.description;
} catch ( ex ) {
try {
version = new ActiveXObject('ShockwaveFlash.ShockwaveFlash')
.GetVariable('$version');
} catch ( ex2 ) {
version = '0.0';
}
}
version = version.match( /\d+/g );
return parseFloat( version[ 0 ] + '.' + version[ 1 ], 10 );
} )(),
supportTransition = (function(){
var s = document.createElement('p').style,
r = 'transition' in s ||
'WebkitTransition' in s ||
'MozTransition' in s ||
'msTransition' in s ||
'OTransition' in s;
s = null;
return r;
})(),
// WebUploader例項
uploader;
if ( !WebUploader.Uploader.support('flash') && WebUploader.browser.ie ) {
// flash 安裝了但是版本過低。
if (flashVersion) {
(function(container) {
window['expressinstallcallback'] = function( state ) {
switch(state) {
case 'Download.Cancelled':
alert('您取消了更新!')
break;
case 'Download.Failed':
alert('安裝失敗')
break;
default:
alert('安裝已成功,請重新整理!');
break;
}
delete window['expressinstallcallback'];
};
var swf = './expressInstall.swf';
// insert flash object
var html = '<object type="application/' +
'x-shockwave-flash" data="' + swf + '" ';
if (WebUploader.browser.ie) {
html += 'classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" ';
}
html += 'width="100%" height="100%" style="outline:0">' +
'<param name="movie" value="' + swf + '" />' +
'<param name="wmode" value="transparent" />' +
'<param name="allowscriptaccess" value="always" />' +
'</object>';
container.html(html);
})($wrap);
// 壓根就沒有安轉。
} else {
$wrap.html('<a href="http://www.adobe.com/go/getflashplayer" target="_blank" border="0"><img alt="get flash player" src="http://www.adobe.com/macromedia/style_guide/images/160x41_Get_Flash_Player.jpg" /></a>');
}
return;
} else if (!WebUploader.Uploader.support()) {
alert( 'Web Uploader 不支援您的瀏覽器!');
return;
}
// 例項化
uploader = WebUploader.create({
pick: {
id: '#filePicker',
label: '點選選擇圖片'
},
formData: {
uid: 123
},
dnd: '#dndArea',
paste: '#uploader',
swf: '<%=path %>/common/plugins/Uploader.swf',
chunked: false,
chunkSize: 512 * 1024 * 1024,
server: '<%=path %>/upload',
// runtimeOrder: 'flash',
accept: {
title: 'Images',
extensions: 'gif,jpg,jpeg,bmp,png',
mimeTypes: 'image/*'
},
// 禁掉全域性的拖拽功能。這樣不會出現圖片拖進頁面的時候,把圖片開啟。
disableGlobalDnd: true,
thumb:{
width: 200,
height: 200,
// 圖片質量,只有type為`image/jpeg`的時候才有效。
quality: 70,
// 是否允許放大,如果想要生成小圖的時候不失真,此選項應該設定為false.
allowMagnify: false,
// 是否允許裁剪。
crop: true,
// 為空的話則保留原有圖片格式。
// 否則強制轉換成指定的型別。
type: 'image/jpeg'
},
compress:{
width: 600,
height: 600,
// 圖片質量,只有type為`image/jpeg`的時候才有效。
quality: 90,
// 是否允許放大,如果想要生成小圖的時候不失真,此選項應該設定為false.
allowMagnify: false,
// 是否允許裁剪。
crop: false,
// 是否保留頭部meta資訊。
preserveHeaders: true,
// 如果發現壓縮後文件大小比原來還大,則使用原來圖片
// 此屬性可能會影響圖片自動糾正功能
noCompressIfLarger: false,
// 單位位元組,如果圖片大小小於此值,不會採用壓縮。
compressSize: 20*1024
},
fileNumLimit: 1,
fileSizeLimit: 50 * 1024 * 1024, // 5 M
fileSingleSizeLimit: 50 * 1024 * 1024 // 1 M
});
var array=[];
uploader.on('uploadSuccess',function(file,response ){
array.push(response.savepath);
console.log("image:" + array.join(","));
$(window.parent.document).find("#imgs").val(array.join(","));
});
// 拖拽時不接受 js, txt 檔案。
uploader.on( 'dndAccept', function( items ) {
var denied = false,
len = items.length,
i = 0,
// 修改js型別
unAllowed = 'text/plain;application/javascript ';
for ( ; i < len; i++ ) {
// 如果在列表裡面
if ( ~unAllowed.indexOf( items[ i ].type ) ) {
denied = true;
break;
}
}
return !denied;
});
uploader.on('dialogOpen', function() {
console.log('here');
});
// 新增“新增檔案”的按鈕,
uploader.addButton({
id: '#filePicker2',
label: '繼續新增'
});
uploader.on('ready', function() {
window.uploader = uploader;
});
// 當有檔案新增進來時執行,負責view的建立
function addFile( file ) {
var $li = $( '<li id="' + file.id + '">' +
'<p class="title">' + file.name + '</p>' +
'<p class="imgWrap"></p>'+
'<p class="progress"><span></span></p>' +
'</li>' ),
$btns = $('<div class="file-panel">' +
'<span class="cancel">刪除</span>' +
'<span class="rotateRight">向右旋轉</span>' +
'<span class="rotateLeft">向左旋轉</span></div>').appendTo( $li ),
$prgress = $li.find('p.progress span'),
$wrap = $li.find( 'p.imgWrap' ),
$info = $('<p class="error"></p>'),
showError = function( code ) {
switch( code ) {
case 'exceed_size':
text = '檔案大小超出';
break;
case 'interrupt':
text = '上傳暫停';
break;
default:
text = '上傳失敗,請重試';
break;
}
$info.text( text ).appendTo( $li );
};
if ( file.getStatus() === 'invalid' ) {
showError( file.statusText );
} else {
// @todo lazyload
$wrap.text( '預覽中' );
uploader.makeThumb( file, function( error, src ) {
var img;
if ( error ) {
$wrap.text( '不能預覽' );
return;
}
if( isSupportBase64 ) {
img = $('<img src="'+src+'">');
$wrap.empty().append( img );
} else {
$.ajax('../../server/preview.php', {
method: 'POST',
data: src,
dataType:'json'
}).done(function( response ) {
if (response.result) {
img = $('<img src="'+response.result+'">');
$wrap.empty().append( img );
} else {
$wrap.text("預覽出錯");
}
});
}
}, thumbnailWidth, thumbnailHeight );
percentages[ file.id ] = [ file.size, 0 ];
file.rotation = 0;
}
file.on('statuschange', function( cur, prev ) {
if ( prev === 'progress' ) {
$prgress.hide().width(0);
} else if ( prev === 'queued' ) {
$li.off( 'mouseenter mouseleave' );
$btns.remove();
}
// 成功
if ( cur === 'error' || cur === 'invalid' ) {
console.log( file.statusText );
showError( file.statusText );
percentages[ file.id ][ 1 ] = 1;
} else if ( cur === 'interrupt' ) {
showError( 'interrupt' );
} else if ( cur === 'queued' ) {
$info.remove();
$prgress.css('display', 'block');
percentages[ file.id ][ 1 ] = 0;
} else if ( cur === 'progress' ) {
$info.remove();
$prgress.css('display', 'block');
} else if ( cur === 'complete' ) {
$prgress.hide().width(0);
$li.append( '<span class="success"></span>' );
}
$li.removeClass( 'state-' + prev ).addClass( 'state-' + cur );
});
$li.on( 'mouseenter', function() {
$btns.stop().animate({height: 30});
});
$li.on( 'mouseleave', function() {
$btns.stop().animate({height: 0});
});
$btns.on( 'click', 'span', function() {
var index = $(this).index(),
deg;
switch ( index ) {
case 0:
uploader.removeFile( file );
return;
case 1:
file.rotation += 90;
break;
case 2:
file.rotation -= 90;
break;
}
if ( supportTransition ) {
deg = 'rotate(' + file.rotation + 'deg)';
$wrap.css({
'-webkit-transform': deg,
'-mos-transform': deg,
'-o-transform': deg,
'transform': deg
});
} else {
$wrap.css( 'filter', 'progid:DXImageTransform.Microsoft.BasicImage(rotation='+ (~~((file.rotation/90)%4 + 4)%4) +')');
}
});
$li.appendTo( $queue );
}
// 負責view的銷燬
function removeFile( file ) {
var $li = $('#'+file.id);
delete percentages[ file.id ];
updateTotalProgress();
$li.off().find('.file-panel').off().end().remove();
}
function updateTotalProgress() {
var loaded = 0,
total = 0,
spans = $progress.children(),
percent;
$.each( percentages, function( k, v ) {
total += v[ 0 ];
loaded += v[ 0 ] * v[ 1 ];
} );
percent = total ? loaded / total : 0;
spans.eq( 0 ).text( Math.round( percent * 100 ) + '%' );
spans.eq( 1 ).css( 'width', Math.round( percent * 100 ) + '%' );
updateStatus();
}
function updateStatus() {
var text = '', stats;
if ( state === 'ready' ) {
text = '選中' + fileCount + '張圖片,共' +
WebUploader.formatSize( fileSize ) + '。';
} else if ( state === 'confirm' ) {
stats = uploader.getStats();
if ( stats.uploadFailNum ) {
text = '已成功上傳' + stats.successNum+ '張照片至XX相簿,'+
stats.uploadFailNum + '張照片上傳失敗,<a class="retry" href="#">重新上傳</a>失敗圖片或<a class="ignore" href="#">忽略</a>'
}
} else {
stats = uploader.getStats();
text = '共' + fileCount + '張(' +
WebUploader.formatSize( fileSize ) +
'),已上傳' + stats.successNum + '張';
if ( stats.uploadFailNum ) {
text += ',失敗' + stats.uploadFailNum + '張';
}
}
$info.html( text );
}
function setState( val ) {
var file, stats;
if ( val === state ) {
return;
}
$upload.removeClass( 'state-' + state );
$upload.addClass( 'state-' + val );
state = val;
switch ( state ) {
case 'pedding':
$placeHolder.removeClass( 'element-invisible' );
$queue.hide();
$statusBar.addClass( 'element-invisible' );
uploader.refresh();
break;
case 'ready':
$placeHolder.addClass( 'element-invisible' );
$( '#filePicker2' ).removeClass( 'element-invisible');
$queue.show();
$statusBar.removeClass('element-invisible');
uploader.refresh();
break;
case 'uploading':
$( '#filePicker2' ).addClass( 'element-invisible' );
$progress.show();
$upload.text( '暫停上傳' );
break;
case 'paused':
$progress.show();
$upload.text( '繼續上傳' );
break;
case 'confirm':
$progress.hide();
$( '#filePicker2' ).removeClass( 'element-invisible' );
$upload.text( '開始上傳' );
stats = uploader.getStats();
if ( stats.successNum && !stats.uploadFailNum ) {
setState( 'finish' );
return;
}
break;
case 'finish':
stats = uploader.getStats();
if ( stats.successNum ) {
alert( '上傳成功' );
} else {
// 沒有成功的圖片,重設
state = 'done';
location.reload();
}
break;
}
updateStatus();
}
uploader.onUploadProgress = function( file, percentage ) {
var $li = $('#'+file.id),
$percent = $li.find('.progress span');
$percent.css( 'width', percentage * 100 + '%' );
percentages[ file.id ][ 1 ] = percentage;
updateTotalProgress();
};
uploader.onFileQueued = function( file ) {
fileCount++;
fileSize += file.size;
if ( fileCount === 1 ) {
$placeHolder.addClass( 'element-invisible' );
$statusBar.show();
}
addFile( file );
setState( 'ready' );
updateTotalProgress();
};
uploader.onFileDequeued = function( file ) {
fileCount--;
fileSize -= file.size;
if ( !fileCount ) {
setState( 'pedding' );
}
removeFile( file );
updateTotalProgress();
};
uploader.on( 'all', function( type ) {
var stats;
switch( type ) {
case 'uploadFinished':
setState( 'confirm' );
break;
case 'startUpload':
setState( 'uploading' );
break;
case 'stopUpload':
setState( 'paused' );
break;
}
});
uploader.onError = function( code ) {
console.log(code);
if (code == "Q_EXCEED_NUM_LIMIT") {
alert("只能上傳1張圖片");
}else if(code=='Q_EXCEED_SIZE_LIMIT'){
alert('新增的檔案總大小超出最大值50M');
}else if(code=='F_EXCEED_SIZE'){
alert('上傳圖片不能超過50M');
}else{
alert(code);
}
};
$upload.on('click', function() {
if ( $(this).hasClass( 'disabled' ) ) {
return false;
}
if ( state === 'ready' ) {
uploader.upload();
} else if ( state === 'paused' ) {
uploader.upload();
} else if ( state === 'uploading' ) {
uploader.stop();
}
});
$info.on( 'click', '.retry', function() {
uploader.retry();
} );
$info.on( 'click', '.ignore', function() {
alert( 'todo' );
} );
$upload.addClass( 'state-' + state );
updateTotalProgress();
});