skins/ajax_scripts/folder_contents_script.js

   1 // (c) Benoît PIN 2006-2007
   2 // http://plinn.org
   3 // Licence GPL
   4 //
   5 //
   6
   7 var FolderDDropControler;
   8 var DropTarget;
   9 var loadListing;
  10 var DDFolderUploader;
  11
  12 (function(){
  13
  14 function getTargetRow(evt){
  15         var target = getTargetedObject(evt);
  16         while (target.nodeName != "TR")
  17                 target = target.parentNode;
  18         return target;
  19 }
  20
  21 FolderDDropControler = function(listing) {
  22         this.folderUrl = document.getElementById("FolderUrl").innerHTML;
  23         this.targetRow = null;
  24         this.lastOverPosition = null;
  25         this.prevDirUp = null;
  26         this.noOver = true;
  27         this.listing = listing;
  28         var thisControler = this;
  29         this.listing.onmousedown        = function(evt) {thisControler.drag(evt);};
  30         this.listing.onmouseover        = function(evt) {thisControler.moveRow(evt);};
  31         this.listing.onmouseup          = function(evt) {thisControler.drop(evt);};
  32         this.listing.onclick            = function(evt) {thisControler.disableClickAfterDrop(evt);};
  33
  34         if (browser.isIE) {
  35                 this.listing.ondragstart = function() { window.event.returnValue = false;};
  36         }
  37 }
  38
  39 FolderDDropControler.prototype.drag =  function(evt){
  40         var target = getTargetedObject(evt);
  41         if (target.nodeName == "INPUT") return true;
  42         disableDefault(evt);
  43         var targetRow = getTargetRow(evt);
  44         targetRow.style.backgroundColor = base_properties["highLightColor"];
  45         this.listing.style.cursor = "move";
  46         this.targetRow = targetRow;
  47         this.lastOverPosition = targetRow.pos;
  48 };
  49
  50 FolderDDropControler.prototype.moveRow =  function(evt){
  51         var targetRow = this.targetRow;
  52         if (targetRow != null) {
  53                 this.noOver = false;
  54                 if (browser.isIE) document.selection.clear();
  55                 var overRow = getTargetRow(evt);
  56
  57                 if (overRow.pos == targetRow.pos) return;
  58
  59                 if (this.lastOverPosition < overRow.pos) { // move up
  60                         this.listing.insertBefore(targetRow, overRow.nextSibling);
  61                         this.prevDirUp = true;
  62                         this.lastOverPosition = overRow.pos;
  63                 }
  64                 else if (this.lastOverPosition > overRow.pos) { // move down
  65                         this.listing.insertBefore(targetRow, overRow);
  66                         this.prevDirUp = false;
  67                         this.lastOverPosition = overRow.pos;
  68                 }
  69                 else {
  70                         if (this.prevDirUp) {
  71                                 this.prevDirUp = false;
  72                                 this.listing.insertBefore(targetRow, overRow);
  73                         }
  74                         else {
  75                                 this.prevDirUp = true;
  76                                 this.listing.insertBefore(targetRow, overRow.nextSibling);
  77                         }
  78                 }
  79         }
  80 };
  81
  82 FolderDDropControler.prototype.drop =  function(evt){
  83         var targetRow = this.targetRow;
  84         if (targetRow != null) {
  85                 targetRow.style.backgroundColor="";
  86                 this.listing.style.cursor = "";
  87                 if (this.noOver) {
  88                         var thisControler = this;
  89                         setTimeout(function(){thisControler.reset();}, 50);
  90                         return;
  91                 }
  92                 if (this.lastOverPosition != null) {
  93                         // get new object position.
  94                         var trim = 0;
  95                         if (targetRow.pos < this.lastOverPosition && !this.prevDirUp)
  96                                 trim = -1;
  97                         else if (targetRow.pos > this.lastOverPosition && this.prevDirUp)
  98                                 trim = 1;
  99
 100                         // construct url
 101                         var object_id = targetRow.getElementsByTagName("INPUT")[0].getAttribute("value");
 102                         var url = this.folderUrl + "/moveObjectIdToPosition";
 103                         var form ="object_id=" + object_id + "&position:int=" +
 104                                            String(this.lastOverPosition - 1 + trim);
 105
 106                         // reinitialize positions
 107                         var rows = this.listing.getElementsByTagName("TR"), row;
 108                         for (var i = 0 ; i < rows.length ; i++) {
 109                                 row = rows[i];
 110                                 row.pos = i+1;
 111                                 if (i % 2 == 0)
 112                                         row.className = "even";
 113                                 else
 114                                         row.className = "odd";
 115                         }
 116
 117                         // send request
 118                         var req = new XMLHttpRequest();
 119                         req.open("POST", url, true);
 120                         req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
 121                         req.send(form);
 122                         var thisControler = this;
 123                         setTimeout(function(){thisControler.reset();}, 50);
 124                 }
 125         }
 126 };
 127
 128 FolderDDropControler.prototype.disableClickAfterDrop = function(evt) {
 129         var target = getTargetedObject(evt);
 130         if (!this.noOver) {
 131                 disablePropagation(evt);
 132                 disableDefault(evt);
 133         }
 134         this.reset();
 135 };
 136
 137 FolderDDropControler.prototype.reset = function() {
 138         this.targetRow = null;
 139         this.lastOverPosition = null;
 140         this.prevDirUp = null;
 141         this.noOver = true;
 142 }
 143
 144
 145
 146 DropTarget = function(node, folderDDControler) {
 147         this.folderDDControler = folderDDControler;
 148         this.batchSize = parseInt(document.getElementById("BatchNavigationSize").innerHTML);
 149         var thisControler = this;
 150         node.onmouseup = function(evt){thisControler.drop(evt);};
 151         node.onmouseover = function(evt) {thisControler.highlightTarget(evt);};
 152         node.onmouseout = function(evt) {
 153                 var target = getTargetedObject(evt);
 154                 if (target.nodeName == "A" && target.className == "dropPageTarget")
 155                         target.className = "";
 156         };
 157 }
 158
 159 DropTarget.prototype.drop = function(evt) {
 160         var target = getTargetedObject(evt);
 161         if (target.nodeName == "A" &&
 162                 target.className != "previous" &&
 163                 target.className != "next") {
 164                 var pageNumber = parseInt(target.innerHTML);
 165                 var targetRow = this.folderDDControler.targetRow;
 166                 if ( !isNaN(pageNumber) && targetRow) {
 167                         this.folderDDControler.reset();
 168                 var object_id = targetRow.getElementsByTagName("INPUT")[0].getAttribute("value");
 169                 var url = this.folderDDControler.folderUrl + "/moveObjectIdToPosition";
 170                 var form ="object_id=" + object_id + "&position:int=" + String(this.batchSize * (pageNumber-1));
 171                         // send request
 172                         var req = new XMLHttpRequest();
 173                         req.open("POST", url, true);
 174                         req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
 175                         req.send(form);
 176                         req.onreadystatechange = function() {
 177                                 if (req.readyState == 4) {
 178                                         switch (req.status) {
 179                                                 case 200:
 180                                                 case 204:
 181                                                 case 1223:
 182                                                         raiseMouseEvent(target, "click");
 183                                                         break;
 184                                                 default:
 185                                                         alert('Error: ' + req.status);
 186                                         };
 187                                 }
 188                         };
 189                 }
 190         }
 191 };
 192
 193 DropTarget.prototype.highlightTarget = function(evt){
 194         if (browser.isIE) document.selection.clear();
 195         var target = getTargetedObject(evt);
 196         if (this.folderDDControler.targetRow &&
 197                 target.nodeName == "A" &&
 198                 target.className != "previous" &&
 199                 target.className != "next")
 200                 target.className = "dropPageTarget";
 201 };
 202
 203
 204
 205
 206 loadListing = function(evt) {
 207         var target = getTargetedObject(evt);
 208         disableDefault(evt);
 209         disablePropagation(evt);
 210         switch (target.nodeName) {
 211                 case "A" :
 212                         var parts = target.href.split('?')
 213                         var url = parts[0];
 214                         var query = '';
 215                         if (parts.length == 2)
 216                                 query = parts[1];
 217
 218                         var urlParts = url.split("/");
 219                         var url = urlParts.slice(0,urlParts.length-1).join("/");
 220                         if (query.search("template") == -1)
 221                                 query += "&template=folder_contents_macros&macro=FolderListing&fragmentId=FolderListing";
 222                         url = url + "/folder_contents?" + query;
 223
 224                         var fi = new FragmentImporter(url);
 225                         fi.load();
 226                         break;
 227
 228                 case "IMG" :
 229                         if (target.id == 'SetSortingAsDefault') {
 230                                 var parent = target.parentNode;
 231                                 var url = parent.href;
 232                                 url = url.replace("folder_contents", "folder_sort_control");
 233                                 parent.parentNode.removeChild(parent);
 234
 235                                 var req = new XMLHttpRequest();
 236                                 req.open("GET", url, true);
 237                                 req.send(null);
 238                         }
 239                         break;
 240         }
 241         return false;
 242 }
 243
 244 DDFolderUploader = function(dropbox, uploadUrl, listing) {
 245         DDFileUploaderBase.apply(this, [dropbox, uploadUrl]);
 246         this.listing = listing;
 247         var thead = listing;
 248         do {
 249                 thead = thead.previousSibling;
 250         } while (thead.tagName !== 'THEAD')
 251
 252         var cells = thead.getElementsByTagName('th');
 253         var cell;
 254         this.tableSpan = 0;
 255         for (var i = 0 ; i < cells.length ; i++) {
 256                 cell = cells[i];
 257                 this.tableSpan += cell.getAttribute('colspan') ? Number(cell.getAttribute('colspan')) : 1;
 258         }
 259         var lastRow = listing.lastChild;
 260         while(lastRow && lastRow.tagName !== 'TR') {
 261                 lastRow = lastRow.previousSibling;
 262         }
 263         this.lastRowClassName = lastRow ? lastRow.className : 'even';
 264 };
 265
 266 copyPrototype(DDFolderUploader, DDFileUploaderBase);
 267
 268
 269 DDFolderUploader.prototype.createRow = function(file) {
 270         var row = document.createElement('tr');
 271         row.file = file;
 272         row.className = this.lastRowClassName === 'even' ? 'odd' : 'even';
 273         this.lastRowClassName = row.className;
 274         var td = document.createElement('td');
 275         td.setAttribute('colspan', this.tableSpan);
 276         td.innerHTML = file.name;
 277         row.appendChild(td);
 278         this.listing.appendChild(row);
 279         return row;
 280 };
 281
 282 // Methods about upload
 283 DDFolderUploader.prototype.handleFiles = function(files) {
 284         var file, i, row;
 285         for (i = 0; i < files.length; i++) {
 286                 file = files[i];
 287                 row = this.createRow(file);
 288                 this.uploadQueuePush(row);
 289         }
 290 };
 291
 292 DDFolderUploader.prototype.beforeUpload = function(item) {
 293         // To be implemented by decendant.
 294 };
 295
 296 DDFolderUploader.prototype.uploadCompleteHandlerCB = function(req) {
 297         // To be implemented by descendant.
 298 };
 299
 300 DDFolderUploader.prototype.progressHandlerCB = function(progress) {
 301         // To be implemented by descendant.
 302         // 0 <= progress <= 1
 303 };
 304
 305 }());