Expand a few comments. One as per Nikerabbit's comment on r59695.
[mediawiki.git] / skins / common / upload.js
blobbc051581ea4fad3edc260b42fe652be9aedc0f88
1 function licenseSelectorCheck() {
2         var selector = document.getElementById( "wpLicense" );
3         var selection = selector.options[selector.selectedIndex].value;
4         if( selector.selectedIndex > 0 ) {
5                 if( selection == "" ) {
6                         // Option disabled, but browser is broken and doesn't respect this
7                         selector.selectedIndex = 0;
8                 }
9         }
10         // We might show a preview
11         wgUploadLicenseObj.fetchPreview( selection );
14 function wgUploadSetup() {
15         // Disable URL box if the URL copy upload source type is not selected
16         var e = document.getElementById( 'wpSourceTypeURL' );
17         if( e ) {
18                 if( !e.checked ) {
19                         var ein = document.getElementById( 'wpUploadFileURL' );
20                         if(ein)
21                                 ein.setAttribute( 'disabled', 'disabled' );
22                 }
23         }
25         // For MSIE/Mac: non-breaking spaces cause the <option> not to render.
26         // But for some reason, setting the text to itself works
27         var selector = document.getElementById("wpLicense");
28         if (selector) {
29                 var ua = navigator.userAgent;
30                 var isMacIe = (ua.indexOf("MSIE") != -1) && (ua.indexOf("Mac") != -1);
31                 if (isMacIe) {
32                         for (var i = 0; i < selector.options.length; i++) {
33                                 selector.options[i].text = selector.options[i].text;
34                         }
35                 }
36         }
37         
38         // Toggle source type
39         var sourceTypeCheckboxes = document.getElementsByName( 'wpSourceType' );
40         for ( var i = 0; i < sourceTypeCheckboxes.length; i++ ) {
41                 sourceTypeCheckboxes[i].onchange = toggleUploadInputs;
42         }
43         
44         // AJAX wpDestFile warnings
45         if ( wgAjaxUploadDestCheck ) {
46                 document.getElementById( 'wpDestFile' ).onchange = function ( e ) { 
47                         wgUploadWarningObj.checkNow(this.value);
48                 };
49                 var optionsTable = document.getElementById( 'mw-htmlform-options' ).tBodies[0];
50                 var row = document.createElement( 'tr' );
51                 var td = document.createElement( 'td' );
52                 td.id = 'wpDestFile-warning';
53                 td.colSpan = 2;
54                 row.appendChild( td );
55                 optionsTable.appendChild( row );
56         }
57         
58         if ( wgAjaxLicensePreview ) {
59                 // License selector check
60                 document.getElementById( 'wpLicense' ).onchange = licenseSelectorCheck;
61         
62                 // License selector table row
63                 var wpLicense = document.getElementById( 'wpLicense' );
64                 var wpLicenseRow = wpLicense.parentNode.parentNode;
65                 var wpLicenseTbody = wpLicenseRow.parentNode;
66                 
67                 var row = document.createElement( 'tr' );
68                 var td = document.createElement( 'td' );
69                 row.appendChild( td );
70                 td = document.createElement( 'td' );
71                 td.id = 'mw-license-preview';
72                 row.appendChild( td );
73                 
74                 wpLicenseTbody.insertBefore( row, wpLicenseRow.nextSibling );
75         }
76         
77         
78         // fillDestFile setup
79         for ( var i = 0; i < wgUploadSourceIds.length; i++ )
80                 document.getElementById( wgUploadSourceIds[i] ).onchange = function (e) {
81                         fillDestFilename( this.id );
82                 };
85 /**
86  * Iterate over all upload source fields and disable all except the selected one.
87  * 
88  * @param enabledId The id of the selected radio button 
89  * @return emptiness
90  */
91 function toggleUploadInputs() {
92         // Iterate over all rows with UploadSourceField
93         var rows;
94         if ( document.getElementsByClassName ) {
95                 rows = document.getElementsByClassName( 'mw-htmlform-field-UploadSourceField' );
96         } else {
97                 // Older browsers don't support getElementsByClassName
98                 rows = new Array();
99                 
100                 var allRows = document.getElementsByTagName( 'tr' );
101                 for ( var i = 0; i < allRows.length; i++ ) {
102                         if ( allRows[i].className == 'mw-htmlform-field-UploadSourceField' )
103                                 rows.push( allRows[i] );
104                 }
105         }
106         
107         for ( var i = 0; i < rows.length; i++ ) {
108                 var inputs = rows[i].getElementsByTagName( 'input' );
109                 
110                 // Check if this row is selected
111                 var isChecked = true; // Default true in case wpSourceType is not found
112                 for ( var j = 0; j < inputs.length; j++ ) {
113                         if ( inputs[j].name == 'wpSourceType' )
114                                 isChecked = inputs[j].checked;
115                 }
116                 
117                 // Disable all unselected rows
118                 for ( var j = 0; j < inputs.length; j++ ) {
119                         if ( inputs[j].type != 'radio')
120                                 inputs[j].disabled = !isChecked;
121                 }
122         }
125 var wgUploadWarningObj = {
126         'responseCache' : { '' : '&nbsp;' },
127         'nameToCheck' : '',
128         'typing': false,
129         'delay': 500, // ms
130         'timeoutID': false,
132         'keypress': function () {
133                 if ( !wgAjaxUploadDestCheck || !sajax_init_object() ) return;
135                 // Find file to upload
136                 var destFile = document.getElementById('wpDestFile');
137                 var warningElt = document.getElementById( 'wpDestFile-warning' );
138                 if ( !destFile || !warningElt ) return ;
140                 this.nameToCheck = destFile.value ;
142                 // Clear timer
143                 if ( this.timeoutID ) {
144                         window.clearTimeout( this.timeoutID );
145                 }
146                 // Check response cache
147                 for (cached in this.responseCache) {
148                         if (this.nameToCheck == cached) {
149                                 this.setWarning(this.responseCache[this.nameToCheck]);
150                                 return;
151                         }
152                 }
154                 this.timeoutID = window.setTimeout( 'wgUploadWarningObj.timeout()', this.delay );
155         },
157         'checkNow': function (fname) {
158                 if ( !wgAjaxUploadDestCheck || !sajax_init_object() ) return;
159                 if ( this.timeoutID ) {
160                         window.clearTimeout( this.timeoutID );
161                 }
162                 this.nameToCheck = fname;
163                 this.timeout();
164         },
166         'timeout' : function() {
167                 if ( !wgAjaxUploadDestCheck || !sajax_init_object() ) return;
168                 injectSpinner( document.getElementById( 'wpDestFile' ), 'destcheck' );
170                 // Get variables into local scope so that they will be preserved for the
171                 // anonymous callback. fileName is copied so that multiple overlapping
172                 // ajax requests can be supported.
173                 var obj = this;
174                 var fileName = this.nameToCheck;
175                 sajax_do_call( 'SpecialUpload::ajaxGetExistsWarning', [this.nameToCheck],
176                         function (result) {
177                                 obj.processResult(result, fileName)
178                         }
179                 );
180         },
182         'processResult' : function (result, fileName) {
183                 removeSpinner( 'destcheck' );
184                 this.setWarning(result.responseText);
185                 this.responseCache[fileName] = result.responseText;
186         },
188         'setWarning' : function (warning) {
189                 var warningElt = document.getElementById( 'wpDestFile-warning' );
190                 this.setInnerHTML(warningElt, warning);
191         },
192         'setInnerHTML' : function (element, text) {
193                 // Check for no change to avoid flicker in IE 7
194                 if (element.innerHTML != text) {
195                         element.innerHTML = text;
196                 }
197         }
200 function fillDestFilename(id) {
201         if (!wgUploadAutoFill) {
202                 return;
203         }
204         if (!document.getElementById) {
205                 return;
206         }
207         // Remove any previously flagged errors
208         var e = document.getElementById( 'mw-upload-permitted' );
209         if( e ) e.className = '';
211         var e = document.getElementById( 'mw-upload-prohibited' );
212         if( e ) e.className = '';
214         var path = document.getElementById(id).value;
215         // Find trailing part
216         var slash = path.lastIndexOf('/');
217         var backslash = path.lastIndexOf('\\');
218         var fname;
219         if (slash == -1 && backslash == -1) {
220                 fname = path;
221         } else if (slash > backslash) {
222                 fname = path.substring(slash+1, 10000);
223         } else {
224                 fname = path.substring(backslash+1, 10000);
225         }
227         // Clear the filename if it does not have a valid extension.
228         // URLs are less likely to have a useful extension, so don't include them in the 
229         // extension check.
230         if( wgFileExtensions && id != 'wpUploadFileURL' ) {
231                 var found = false;
232                 if( fname.lastIndexOf( '.' ) != -1 ) {
233                         var ext = fname.substr( fname.lastIndexOf( '.' ) + 1 );
234                         for( var i = 0; i < wgFileExtensions.length; i++ ) {
235                                 if( wgFileExtensions[i].toLowerCase() == ext.toLowerCase() ) {
236                                         found = true;
237                                         break;
238                                 }
239                         }
240                 }
241                 if( !found ) {
242                         // Not a valid extension
243                         // Clear the upload and set mw-upload-permitted to error
244                         document.getElementById(id).value = '';
245                         var e = document.getElementById( 'mw-upload-permitted' );
246                         if( e ) e.className = 'error';
248                         var e = document.getElementById( 'mw-upload-prohibited' );
249                         if( e ) e.className = 'error';
251                         // Clear wpDestFile as well
252                         var e = document.getElementById( 'wpDestFile' )
253                         if( e ) e.value = '';
255                         return false;
256                 }
257         }
259         // Capitalise first letter and replace spaces by underscores
260         // FIXME: $wgCapitalizedNamespaces
261         fname = fname.charAt(0).toUpperCase().concat(fname.substring(1,10000)).replace(/ /g, '_');
263         // Output result
264         var destFile = document.getElementById('wpDestFile');
265         if (destFile) {
266                 destFile.value = fname;
267                 wgUploadWarningObj.checkNow(fname) ;
268         }
271 function toggleFilenameFiller() {
272         if(!document.getElementById) return;
273         var upfield = document.getElementById('wpUploadFile');
274         var destName = document.getElementById('wpDestFile').value;
275         if (destName=='' || destName==' ') {
276                 wgUploadAutoFill = true;
277         } else {
278                 wgUploadAutoFill = false;
279         }
282 var wgUploadLicenseObj = {
284         'responseCache' : { '' : '' },
286         'fetchPreview': function( license ) {
287                 if( !wgAjaxLicensePreview || !sajax_init_object() ) return;
288                 for (cached in this.responseCache) {
289                         if (cached == license) {
290                                 this.showPreview( this.responseCache[license] );
291                                 return;
292                         }
293                 }
294                 injectSpinner( document.getElementById( 'wpLicense' ), 'license' );
295                 sajax_do_call( 'SpecialUpload::ajaxGetLicensePreview', [license],
296                         function( result ) {
297                                 wgUploadLicenseObj.processResult( result, license );
298                         }
299                 );
300         },
302         'processResult' : function( result, license ) {
303                 removeSpinner( 'license' );
304                 this.showPreview( result.responseText );
305                 this.responseCache[license] = result.responseText;
306         },
308         'showPreview' : function( preview ) {
309                 var previewPanel = document.getElementById( 'mw-license-preview' );
310                 if( previewPanel.innerHTML != preview )
311                         previewPanel.innerHTML = preview;
312         }
316 addOnloadHook( wgUploadSetup );