-// Live preview
-
-function openXMLHttpRequest() {
- if( window.XMLHttpRequest ) {
- return new XMLHttpRequest();
- } else if( window.ActiveXObject && navigator.platform != 'MacPPC' ) {
- // IE/Mac has an ActiveXObject but it doesn't work.
- return new ActiveXObject("Microsoft.XMLHTTP");
- } else {
- return null;
- }
-}
-
/**
- * Returns true if could open the request,
- * false otherwise (eg no browser support).
+ * Live preview script for MediaWiki
*/
-function livePreview(target, text, postUrl) {
- prevTarget = target;
- if( !target ) {
- window.alert('Live preview failed!\nTry normal preview.');
- var fallback = document.getElementById('wpPreview');
- if ( fallback ) { fallback.style.display = 'inline'; }
- }
- prevReq = openXMLHttpRequest();
- if( !prevReq ) return false;
-
- prevReq.onreadystatechange = updatePreviewText;
- prevReq.open("POST", postUrl, true);
-
- var postData = 'wpTextbox1=' + encodeURIComponent(text);
- prevReq.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
- prevReq.send(postData);
- return true;
-}
-
-function updatePreviewText() {
- if( prevReq.readyState != 4 ) {
- return;
- }
- if( prevReq.status != 200 ) {
- window.alert('Failed to connect: ' + prevReq.status +
- ' "' + prevReq.statusText + '"');
- var fallback = document.getElementById('wpPreview');
- if ( fallback ) { fallback.style.display = 'inline'; }
- return;
- }
- prevTarget.innerHTML = prevReq.responseText;
-
- /* Hide the active diff if it exists */
- var diff = document.getElementById('wikiDiff');
- if ( diff ) { diff.style.display = 'none'; }
-}
+(function( $ ) {
+ window.doLivePreview = function( e ) {
+ e.preventDefault();
+
+ $( mw ).trigger( 'LivePreviewPrepare' );
+
+ var postData = $('#editform').formToArray();
+ postData.push( { 'name' : 'wpPreview', 'value' : '1' } );
+
+ // Hide active diff, used templates, old preview if shown
+ var copyElements = ['#wikiPreview', '.templatesUsed', '.hiddencats',
+ '#catlinks'];
+ var copySelector = copyElements.join(',');
+
+ $.each( copyElements, function(k,v) { $(v).fadeOut('fast'); } );
+
+ // Display a loading graphic
+ var loadSpinner = $('<div class="mw-ajax-loader"/>');
+ $('#wikiPreview').before( loadSpinner );
+
+ var page = $('<div/>');
+ var target = $('#editform').attr('action');
+
+ if ( !target ) {
+ target = window.location.href;
+ }
+
+ page.load( target + ' ' + copySelector, postData,
+ function() {
+
+ for( var i=0; i<copyElements.length; ++i) {
+ // For all the specified elements, find the elements in the loaded page
+ // and the real page, empty the element in the real page, and fill it
+ // with the content of the loaded page
+ var copyContent = page.find( copyElements[i] ).contents();
+ $(copyElements[i]).empty().append( copyContent );
+ var newClasses = page.find( copyElements[i] ).prop('class');
+ $(copyElements[i]).prop( 'class', newClasses );
+ }
+
+ $.each( copyElements, function(k,v) {
+ // Don't belligerently show elements that are supposed to be hidden
+ $(v).fadeIn( 'fast', function() { $(this).css('display', ''); } );
+ } );
+
+ loadSpinner.remove();
+
+ $( mw ).trigger( 'LivePreviewDone', [copyElements] );
+ } );
+ };
+
+ // Shamelessly stolen from the jQuery form plugin, which is licensed under the GPL.
+ // http://jquery.malsup.com/form/#download
+ $.fn.formToArray = function() {
+ var a = [];
+ if (this.length == 0) return a;
+
+ var form = this[0];
+ var els = form.elements;
+ if (!els) return a;
+ for(var i=0, max=els.length; i < max; i++) {
+ var el = els[i];
+ var n = el.name;
+ if (!n) continue;
+
+ var v = $.fieldValue(el, true);
+ if (v && v.constructor == Array) {
+ for(var j=0, jmax=v.length; j < jmax; j++)
+ a.push({name: n, value: v[j]});
+ }
+ else if (v !== null && typeof v != 'undefined')
+ a.push({name: n, value: v});
+ }
+
+ if (form.clk) {
+ // input type=='image' are not found in elements array! handle it here
+ var $input = $(form.clk), input = $input[0], n = input.name;
+ if (n && !input.disabled && input.type == 'image') {
+ a.push({name: n, value: $input.val()});
+ a.push({name: n+'.x', value: form.clk_x}, {name: n+'.y', value: form.clk_y});
+ }
+ }
+ return a;
+ };
+
+ /**
+ * Returns the value of the field element.
+ */
+ $.fieldValue = function(el, successful) {
+ var n = el.name, t = el.type, tag = el.tagName.toLowerCase();
+ if (typeof successful == 'undefined') successful = true;
+
+ if (successful && (!n || el.disabled || t == 'reset' || t == 'button' ||
+ (t == 'checkbox' || t == 'radio') && !el.checked ||
+ (t == 'submit' || t == 'image') && el.form && el.form.clk != el ||
+ tag == 'select' && el.selectedIndex == -1))
+ return null;
+
+ if (tag == 'select') {
+ var index = el.selectedIndex;
+ if (index < 0) return null;
+ var a = [], ops = el.options;
+ var one = (t == 'select-one');
+ var max = (one ? index+1 : ops.length);
+ for(var i=(one ? index : 0); i < max; i++) {
+ var op = ops[i];
+ if (op.selected) {
+ var v = op.value;
+ if (!v) // extra pain for IE...
+ v = (op.attributes && op.attributes['value'] &&
+ !(op.attributes['value'].specified))
+ ? op.text : op.value;
+ if (one) return v;
+ a.push(v);
+ }
+ }
+ return a;
+ }
+ return el.value;
+ };
+
+ $(document).ready( function() {
+ $('#wpPreview').click( doLivePreview );
+ } );
+}) ( jQuery );
dépôts / lhc / web / wiklou.git / blobdiff