631f9faf54c40c612aeb03bc521b2a92d7895c72
[ckeditor.git] / skins / ckeditor / plugins / plinn_image / plugin.js
1 /* © 2011 Benoît Pin, MINES ParisTech */
2
3
4 (function(){
5
6 var reImage = /^image\//;
7
8 var PlinnCKDDUploader = function(editor) {
9 this.editor = editor;
10 this.uploadUrl = editor.config.baseHref + 'attachments/put_upload';
11 this.uploadQueue = [];
12 this._uploadQueueRunning = false;
13 var self = this;
14 editor.document.on('dragenter', function(e) {self.dragenter(e);});
15 editor.document.on('dragover', function(e) {self.dragover(e);});
16 editor.document.on('drop', function(e) {self.drop(e);});
17 };
18
19 // Drag and drop
20 PlinnCKDDUploader.prototype.dragenter = function(e) {
21 var evt = e.data.$;
22 disableDefault(evt);
23 disablePropagation(evt);
24 };
25
26 PlinnCKDDUploader.prototype.dragover = function(e) {
27 var evt = e.data.$;
28 disableDefault(evt);
29 disablePropagation(evt);
30 evt = getEventObject(evt);
31 var dt = evt.dataTransfer;
32 dt.dropEffect = 'copy';
33 };
34
35 PlinnCKDDUploader.prototype.drop = function(e) {
36 var evt = e.data.$;
37 disableDefault(evt);
38 disablePropagation(evt);
39 getEventObject(evt);
40 var dt = evt.dataTransfer;
41 dt.dropEffect = 'copy';
42 this.handleFiles(dt.files);
43 };
44
45 PlinnCKDDUploader.prototype.createFileProxy = function(file) {
46 var container = new CKEDITOR.dom.element('span');
47 var rel = CKEDITOR.dom.element.createFromHtml('<span style="position:relative"/>');
48 container.append(rel);
49 var progressBar = CKEDITOR.dom.element.createFromHtml(
50 '<span style="display:block; position:absolute; background:#ef8e32; height:4px; border-radius:2px; width:0; left:0; top:1em"/>');
51 rel.append(progressBar);
52 var link = new CKEDITOR.dom.element('a');
53 link.setAttribute('href', '#');
54 link.setStyle('opacity', 0.2);
55 link.appendText(file.name);
56 container.append(link);
57
58 var proxy = {};
59 proxy.file = file;
60 proxy.container = container;
61 proxy.progressBar = progressBar;
62 proxy.link = link;
63 return proxy;
64 };
65
66 // Methods about upload
67 PlinnCKDDUploader.prototype.handleFiles = function(files) {
68 var file, i, proxy;
69 for (i=0 ; i<files.length ; i++) {
70 file = files[i];
71 if (reImage.test(file.type)) {
72 // TODO
73 }
74 else {
75 proxy = this.createFileProxy(file);
76 this.editor.insertElement(proxy.container);
77 this.editor.insertText(' ');
78 this.uploadQueuePush(proxy);
79 }
80 }
81 };
82
83
84
85 PlinnCKDDUploader.prototype.beforeUpload = function(item) {
86 this.uploadedItem = item;
87 this.progressBar = item.progressBar;
88 this.progressBarMaxSize = item.container.getSize('width');
89 };
90
91
92 PlinnCKDDUploader.prototype.upload = function(item) {
93 // item.file must be the file to be uploaded
94 this.beforeUpload(item);
95 var reader = new FileReader();
96 var req = new XMLHttpRequest();
97 var file = item.file;
98
99 var self = this;
100
101 addListener(req.upload, 'progress', function(evt){self.progressHandler(evt);});
102 addListener(req, 'readystatechange',
103 function(evt) {
104 if (req.readyState === 4) {
105 self.uploadCompleteHandler(req);
106 }
107 });
108
109 req.open("PUT", this.uploadUrl);
110 req.setRequestHeader("Content-Type", file.type);
111 req.setRequestHeader("X-File-Name", encodeURI(file.name));
112 addListener(reader, 'load',
113 function(evt){
114 try {
115 req.sendAsBinary(evt.target.result);
116 }
117 catch(e){}
118 });
119 reader.readAsBinaryString(file);
120 };
121
122
123 PlinnCKDDUploader.prototype.uploadCompleteHandlerCB = function(req) {
124 var item = this.uploadedItem;
125 var data = req.responseXML.documentElement;
126 var link = new CKEDITOR.dom.element('a');
127 link.setAttribute('href', 'attachments/' + data.getAttribute('id'));
128 link.appendText(data.getAttribute('title'));
129 link.replace(item.container);
130 };
131
132 PlinnCKDDUploader.prototype.uploadCompleteHandler = function(req) {
133 this.uploadCompleteHandlerCB(req);
134 this.uploadQueueLoadNext();
135 };
136
137 PlinnCKDDUploader.prototype.progressHandlerCB = function(progress) {
138 // 0 <= progress <= 1
139 var size = this.progressBarMaxSize * progress;
140 size = Math.round(size);
141 this.progressBar.setStyle('width', String(size) + 'px');
142 var currentOpacity = this.uploadedItem.link.getStyle('opacity');
143 this.uploadedItem.link.setStyle('opacity', Math.max(currentOpacity, progress));
144 };
145
146 PlinnCKDDUploader.prototype.progressHandler = function(evt) {
147 if (evt.lengthComputable) {
148 var progress = evt.loaded / evt.total;
149 this.progressHandlerCB(progress);
150 }
151 };
152
153 // Methods about queue
154 PlinnCKDDUploader.prototype.uploadQueuePush = function(item) {
155 this.uploadQueue.push(item);
156 if (!this._uploadQueueRunning) {
157 this.startUploadQueue();
158 }
159 };
160
161 PlinnCKDDUploader.prototype.startUploadQueue = function() {
162 this._uploadQueueRunning = true;
163 this.uploadQueueLoadNext();
164 };
165
166 PlinnCKDDUploader.prototype.uploadQueueLoadNext = function() {
167 var item = this.uploadQueue.shift();
168 if (item) {
169 this.upload(item);
170 }
171 else {
172 this._uploadQueueRunning = false;
173 }
174 };
175
176 var reSize = /getResizedImage\?size=(\d+)_(\d+)$/;
177
178 function updateImageSizeUrlParameters(img) {
179 if (reSize.test(img.src)){
180 var matches = reSize.exec(img.src);
181 var srcWidth = parseInt(matches[1], 10);
182 var srcHeight = parseInt(matches[2], 10);
183
184 var imgWidth = parseInt((img.style.width) ? img.style.width : img.width, 10);
185 var imgHeight = parseInt((img.style.height) ? img.style.height : img.height, 10);
186
187 if ((imgWidth && imgHeight) && srcWidth !== imgWidth && srcHeight !== imgHeight) {
188 var newUrl = img.getAttribute('src', 2).replace(reSize, 'getResizedImage?size=' + imgWidth + '_' + imgHeight);
189 img.width = imgWidth;
190 img.height = imgHeight;
191 img.src = newUrl;
192 }
193 }
194 }
195
196 function openPlinnImageDialog(path, editor) {
197 var winOptions = "location=no,menubar=no,toolbar=no,dependent=yes,dialog=yes,minimizable=no,modal=yes,alwaysRaised=yes" +
198 ",resizable=yes" +
199 ",width=801" +
200 ",height=600";
201 //",top=" + iTop +
202 //",left=" + iLeft ;
203
204 var win = open(path + 'dialog/plinn_image.html', 'PlinnImageDialog', winOptions);
205 win.dialogArguments = {};
206 win.dialogArguments.editor = editor;
207 win.dialogArguments.pluginPath = path;
208 win.dialogArguments.CKEDITOR = CKEDITOR;
209 }
210
211
212 CKEDITOR.plugins.add( 'plinn_image',
213 {
214 init : function( editor )
215 {
216 /* Add listener on getData event to compute images
217 src attributes before saving data.
218 */
219 editor.on('instanceReady', function(){
220 editor.on('getData',
221 function(evt) {
222 var tmpDiv = document.createElement('div');
223 tmpDiv.innerHTML = evt.data.dataValue;
224 var images = tmpDiv.getElementsByTagName('IMG');
225 var i;
226 for (i = 0 ; i < images.length ; i++) {
227 updateImageSizeUrlParameters(images[i]);}
228 evt.data.dataValue = tmpDiv.innerHTML;
229 }
230 );
231 // drag & drop upload initialisation
232 var dd = new PlinnCKDDUploader(editor);
233 });
234
235
236 var pluginPath = this.path;
237 var allowed = 'img[alt,!src]{border-style,border-width,float,height,margin,margin-bottom,margin-left,margin-right,margin-top,width}';
238 var required = 'img[alt,src]';
239 var command = editor.addCommand('plinn_image',
240 {
241 exec : function(editor){openPlinnImageDialog(pluginPath, editor);},
242 allowedContent: allowed,
243 requiredContent: required
244 }
245 );
246
247 editor.ui.addButton('PlinnImage',
248 {
249 label : editor.lang.common.image,
250 icon : pluginPath + 'dialog/plinn_image.png',
251 command : 'plinn_image'
252 });
253 }
254
255 });
256
257 }());