kindeditor 限制上传图片大小及宽高

进入：/kindeditor/plugins/image/image.js，替换其中的 self.plugin.imageDialog = function (options)方法，代码为：

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self.plugin.imageDialog = function (options) {         var imageUrl = options.imageUrl,             imageWidth = K.undef(options.imageWidth, ''),             imageHeight = K.undef(options.imageHeight, ''),             imageTitle = K.undef(options.imageTitle, ''),             imageAlign = K.undef(options.imageAlign, ''),             　　　　　　　imageSize = options.imageSize*1024,             showRemote = K.undef(options.showRemote, true),             showLocal = K.undef(options.showLocal, true),             tabIndex = K.undef(options.tabIndex, 0),             clickFn = options.clickFn;         var target = 'kindeditor_upload_iframe_' + new Date().getTime();         var hiddenElements = [];         for (var k in extraParams) {             hiddenElements.push('<input type="hidden" name="' + k + '" value="' + extraParams[k] + '" />');         }         var html = [             '<div style="padding:20px;">',             //tabs             '<div class="tabs"></div>',             //remote image - start             '<div class="tab1" style="display:none;">',             //url             '<div class="ke-dialog-row">',             '<label for="remoteUrl" style="width:60px;">' + lang.remoteUrl + '</label>',             '<input type="text" id="remoteUrl" class="ke-input-text" name="url" value="" style="width:200px;" />  ',             '<span class="ke-button-common ke-button-outer">',             '<input type="button" class="ke-button-common ke-button" name="viewServer" value="' + lang.viewServer + '" />',             '</span>',             '</div>',             //size             '<div class="ke-dialog-row">',             '<label for="remoteWidth" style="width:60px;">' + lang.size + '</label>',             lang.width + ' <input type="text" id="remoteWidth" class="ke-input-text ke-input-number" name="width" value="" maxlength="4" /> ',             lang.height + ' <input type="text" class="ke-input-text ke-input-number" name="height" value="" maxlength="4" /> ',             '<img class="ke-refresh-btn" src="' + imgPath + 'refresh.png" width="16" height="16" alt="" style="cursor:pointer;" title="' + lang.resetSize + '" />',             '</div>',             //align             '<div class="ke-dialog-row">',             '<label style="width:60px;">' + lang.align + '</label>',             '<input type="radio" name="align" class="ke-inline-block" value="" checked="checked" /> <img name="defaultImg" src="' + imgPath + 'align_top.gif" width="23" height="25" alt="" />',             ' <input type="radio" name="align" class="ke-inline-block" value="left" /> <img name="leftImg" src="' + imgPath + 'align_left.gif" width="23" height="25" alt="" />',             ' <input type="radio" name="align" class="ke-inline-block" value="right" /> <img name="rightImg" src="' + imgPath + 'align_right.gif" width="23" height="25" alt="" />',             '</div>',             //title             '<div class="ke-dialog-row">',             '<label for="remoteTitle" style="width:60px;">' + lang.imgTitle + '</label>',             '<input type="text" id="remoteTitle" class="ke-input-text" name="title" value="" style="width:200px;" />',             '</div>',             '</div>',             //remote image - end             //local upload - start             '<div class="tab2" style="display:none;">',             '<iframe name="' + target + '" style="display:none;"></iframe>',             '<form class="ke-upload-area ke-form" method="post" enctype="multipart/form-data" target="' + target + '" action="' + K.addParam(uploadJson, 'dir=image') + '">',             //file             '<div class="ke-dialog-row">',             hiddenElements.join(''),             '<label style="width:60px;">' + lang.localUrl + '</label>',             '<input type="text" name="localUrl" class="ke-input-text" tabindex="-1" style="width:200px;" readonly="true" />  ',             '<input type="button" class="ke-upload-button" value="' + lang.upload + '" />',             '</div>',             '</form>',             '</div>',             //local upload - end             '</div>'         ].join('');         var dialogWidth = showLocal || allowFileManager ? 450 : 400,             dialogHeight = showLocal && showRemote ? 300 : 250;         var dialog = self.createDialog({             name: name,             width: dialogWidth,             height: dialogHeight,             title: self.lang(name),             body: html,             yesBtn: {                 name: self.lang('yes'),                 click: function (e) {                     // Bugfix: http://code.google.com/p/kindeditor/issues/detail?id=319                     if (dialog.isLoading) {                         return;                     }                       var f = uploadbutton.fileBox[0].files[0];                     var reader = new FileReader();                     reader.onload = function (e) {                         var data = e.target.result;                         //加载图片获取图片真实宽度和高度                         var image = new Image();                         image.onload = function () {                             var width = image.width;                             var height = image.height;                             if (f.size > imageSize) {                                 alert("图片大小超过限制");                                 return;                               }                               if (width != imageWidth || height != imageHeight) {                                 alert("图片尺寸不对");                                 return;                             }                                                             // insert local image                             if (showLocal && showRemote && tabs && tabs.selectedIndex === 1 || !showRemote) {                                 if (uploadbutton.fileBox.val() == '') {                                     alert(self.lang('pleaseSelectFile'));                                     return;                                 }                                 dialog.showLoading(self.lang('uploadLoading'));                                 uploadbutton.submit();                                 localUrlBox.val('');                                 return;                             }                             // insert remote image                             var url = K.trim(urlBox.val()),                                 width = widthBox.val(),                                 height = heightBox.val(),                                 title = titleBox.val(),                                 align = '';                             alignBox.each(function () {                                 if (this.checked) {                                     align = this.value;                                     return false;                                 }                             });                               if (url == 'http://' || K.invalidUrl(url)) {                                 alert(self.lang('invalidUrl'));                                 urlBox[0].focus();                                 return;                             }                             if (!/^\d*$/.test(width)) {                                 alert(self.lang('invalidWidth'));                                 widthBox[0].focus();                                 return;                             }                             if (!/^\d*$/.test(height)) {                                 alert(self.lang('invalidHeight'));                                 heightBox[0].focus();                                 return;                             }                             clickFn.call(self, url, title, width, height, 0, align);                             };                         image.src = data;                     };                     reader.readAsDataURL(f);                   }             },             beforeRemove: function () {                 viewServerBtn.unbind();                 widthBox.unbind();                 heightBox.unbind();                 refreshBtn.unbind();             }         }),         div = dialog.div;           var urlBox = K('[name="url"]', div),             localUrlBox = K('[name="localUrl"]', div),             viewServerBtn = K('[name="viewServer"]', div),             widthBox = K('.tab1 [name="width"]', div),             heightBox = K('.tab1 [name="height"]', div),             refreshBtn = K('.ke-refresh-btn', div),             titleBox = K('.tab1 [name="title"]', div),             alignBox = K('.tab1 [name="align"]', div);           var tabs;         if (showRemote && showLocal) {             tabs = K.tabs({                 src: K('.tabs', div),                 afterSelect: function (i) { }             });             tabs.add({                 title: lang.remoteImage,                 panel: K('.tab1', div)             });             tabs.add({                 title: lang.localImage,                 panel: K('.tab2', div)             });             tabs.select(tabIndex);         } else if (showRemote) {             K('.tab1', div).show();         } else if (showLocal) {             K('.tab2', div).show();         }           var uploadbutton = K.uploadbutton({             button: K('.ke-upload-button', div)[0],             fieldName: filePostName,             form: K('.ke-form', div),             target: target,             width: 60,             afterUpload: function (data) {                 dialog.hideLoading();                 if (data.error === 0) {                     var url = data.url;                     if (formatUploadUrl) {                         url = K.formatUrl(url, 'absolute');                     }                     if (self.afterUpload) {                         self.afterUpload.call(self, url, data, name);                     }                     if (!fillDescAfterUploadImage) {                         clickFn.call(self, url, data.title, data.width, data.height, data.border, data.align);                     } else {                         K(".ke-dialog-row #remoteUrl", div).val(url);                         K(".ke-tabs-li", div)[0].click();                         K(".ke-refresh-btn", div).click();                     }                 } else {                     alert(data.message);                 }             },             afterError: function (html) {                 dialog.hideLoading();                 self.errorDialog(html);             }         });         uploadbutton.fileBox.change(function (e) {             localUrlBox.val(uploadbutton.fileBox.val());         });         if (allowFileManager) {             viewServerBtn.click(function (e) {                 self.loadPlugin('filemanager', function () {                     self.plugin.filemanagerDialog({                         viewType: 'VIEW',                         dirName: 'image',                         clickFn: function (url, title) {                             if (self.dialogs.length > 1) {                                 K('[name="url"]', div).val(url);                                 if (self.afterSelectFile) {                                     self.afterSelectFile.call(self, url);                                 }                                 self.hideDialog();                             }                         }                     });                 });             });         } else {             viewServerBtn.hide();         }         var originalWidth = 0, originalHeight = 0;         function setSize(width, height) {             widthBox.val(width);             heightBox.val(height);             originalWidth = width;             originalHeight = height;         }         refreshBtn.click(function (e) {             var tempImg = K('<img src="' + urlBox.val() + '" />', document).css({                 position: 'absolute',                 visibility: 'hidden',                 top: 0,                 left: '-1000px'             });             tempImg.bind('load', function () {                 setSize(tempImg.width(), tempImg.height());                 tempImg.remove();             });             K(document.body).append(tempImg);         });         widthBox.change(function (e) {             if (originalWidth > 0) {                 heightBox.val(Math.round(originalHeight / originalWidth * parseInt(this.value, 10)));             }         });         heightBox.change(function (e) {             if (originalHeight > 0) {                 widthBox.val(Math.round(originalWidth / originalHeight * parseInt(this.value, 10)));             }         });         urlBox.val(options.imageUrl);         setSize(options.imageWidth, options.imageHeight);         titleBox.val(options.imageTitle);         alignBox.each(function () {             if (this.value === options.imageAlign) {                 this.checked = true;                 return false;             }         });         if (showRemote && tabIndex === 0) {             urlBox[0].focus();             urlBox[0].select();         }         return dialog;     };