CKEditor 自定义image插件
创建image.js
(function () {
var imageUploadId = "imageUploadId_" + new Date().getTime() + parseInt(Math.random() * 1000); // 生成唯一编号
function init(editor) {
return {
title: editor.lang.image["title"],
minWidth: 420,
minHeight: 360,
onShow: function () {
var selectedImg = editor.getSelectedHtml();
var imgSrc = $(selectedImg["$"].firstChild).attr("src");
var imgStyle = $(selectedImg["$"].firstChild).attr("style");
$("#" + imageUploadId + " img.previewImage").attr("src", imgSrc);
$("#" + imageUploadId + " img.previewImage").attr("style", imgStyle);
},
onOk: function () {
var previewImg = $("#" + imageUploadId + " img.previewImage");
var previewImageSrc = previewImg.attr("src");
var previewImageStyle = previewImg.attr("style");
if (previewImageSrc == null || previewImageSrc == "") {
return;
}
var image = editor.document.createElement('img');
image.setAttribute("src", previewImageSrc);
image.setAttribute("style", previewImageStyle);
editor.insertElement(image);
},
onLoad: function () {
},
onHide: function () {
$("#" + imageUploadId + " img.previewImage").attr("src", "");
$("#" + imageUploadId + " .width").val("");
$("#" + imageUploadId + " .height").val("");
$("#" + imageUploadId + " img.previewImage").css("width", "inherit");
$("#" + imageUploadId + " img.previewImage").css("height", "inherit");
},
contents: [
{
id: "info",
label: editor.lang.image.infoTab,
accessKey: "I",
elements: [{
type: "html",
html: "<div style='margin-bottom:20px' id='" + imageUploadId + "' >" +
"<div style='padding-bottom:20px;'>" +
"<a class='uploadFile cke_dialog_ui_button cke_dialog_ui_button_ok' style='cursor: pointer;'>上传文件</a>" +
"<label style='margin-left:20px;'>宽度</label><input class='width cke_dialog_ui_input_text' style='width:120px;' type='text'/>px" +
"<label style='margin-left:20px;'>高度</label><input class='height cke_dialog_ui_input_text' style='width:120px;' type='text'/>px" +
"</div>" +
"<img class='previewImage'/>" +
"</div>"
}]
}]
}
};
CKEDITOR.dialog.add("image", function (editor) {
return init(editor)
});
// 注册事件
$("#" + imageUploadId + " .uploadFile").ysSimpleUploadFile({
changeCallback: function (file) {
var fileReader = new FileReader();
fileReader.onload = function () {
$("#" + imageUploadId + " img.previewImage").attr("src", this.result);
};
fileReader.readAsDataURL(file);
}
});
$(document).on("keyup", "#" + imageUploadId + " .width", function (e) {
e.stopPropagation();
e.preventDefault();
var val = $(this).val();
if (isNaN(parseInt(val))) {
return;
}
$("#" + imageUploadId + " img.previewImage").css("width", val);
});
$(document).on("keyup", "#" + imageUploadId + " .height", function (e) {
e.stopPropagation();
e.preventDefault();
var val = $(this).val();
if (isNaN(parseInt(val))) {
return;
}
$("#" + imageUploadId + " img.previewImage").css("height", val);
});
})();
2. 创建 ys_simple_file_upload.js
(function($){
var defaultSettings = {
acceptTypes:["jpg","png"], // 接受的上传文件类型
changeCallback:function(file){
} // 自定义input[type=file] change事件
};
var renderHtml = "<input type='file' style='display:none;'/>";
// 添加隐藏的
function renderInputFile(target,settings){
// 生成dialog唯一标识
var id = "ys_simple_file_upload_"+new Date().getTime()+""+parseInt(Math.random());
$(target).attr("ys_simple_file_upload",id);
$(renderHtml).attr("id",id).appendTo("html"); // 添加到文档中去
return $("#"+id);
}
function bindEventHandlers(container,settings){
var changeCallback = settings.changeCallback;
$(container).change(function(e){
e.preventDefault();
e.stopPropagation();
var file = e.target.files[0];
if(file==null){
return;
}
if(!validateFileType(file,settings)){
alert("文件类型不正确!");
return;
}
changeCallback(file);
// 清除value
$(this).val("");
});
}
// 验证文件类型
function validateFileType(file,settings){
var acceptTypes = settings.acceptTypes;
var name = file.name;
var fileSuffix = name.substr(name.lastIndexOf(".")+1);
for(var i=0;i<acceptTypes.length;i++){
var acceptType = acceptTypes[i];
if(acceptType==fileSuffix){
return true;
}
}
return false;
}
var options = {
ysSimpleUploadFile:function(settings) {
var mergedSettings = {};
$.extend(mergedSettings,defaultSettings,settings);
var container = renderInputFile(this,mergedSettings);
bindEventHandlers(container,mergedSettings);
$(document).on("click",$(this)["selector"],function(e){
e.preventDefault();
e.stopPropagation();
$(container).click();
});
//$(this).click(function(e){
// e.preventDefault();
// e.stopPropagation();
// $(container).click();
//});
}
};
$.fn.extend(options);
})(jQuery);
3. editor.html
<!DOCTYPE html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <title></title> <body> <textarea id="editor"></textarea> <script src="../static/dist/js/jquery-1.11.3.min.js"></script> <script src="../static/dist/js/ckeditor.js"></script> <script src="../static/js/ys_ui_plugin/ys_simple_file_upload.js"></script> <script src="../static/dist/js/plugins/imageupload/dialogs/image.js"></script> <script> CKEDITOR.replace( 'editor'); </script> </body> </html>
4. 效果
