skins/ajax_scripts/folder_contents_script.js

   1 // (c) Benoît PIN 2006-2007
   2 // http://plinn.org
   3 // Licence GPL
   4 //
   5 //
   6
   7 function getTargetRow(evt){
   8         var target = getTargetedObject(evt);
   9         while (target.nodeName != "TR")
  10                 target = target.parentNode;
  11         return target;
  12 }
  13
  14 function FolderDDropControler(listing) {
  15         this.folderUrl = document.getElementById("FolderUrl").innerHTML;
  16         this.targetRow = null;
  17         this.lastOverPosition = null;
  18         this.prevDirUp = null;
  19         this.noOver = true;
  20         this.listing = listing;
  21         var thisControler = this;
  22         this.listing.onmousedown        = function(evt) {thisControler.drag(evt);};
  23         this.listing.onmouseover        = function(evt) {thisControler.moveRow(evt);};
  24         this.listing.onmouseup          = function(evt) {thisControler.drop(evt);};
  25         this.listing.onclick            = function(evt) {thisControler.disableClickAfterDrop(evt);};
  26
  27         if (browser.isIE) {
  28                 this.listing.ondragstart = function() { window.event.returnValue = false;};
  29         }
  30 }
  31
  32 FolderDDropControler.prototype.drag =  function(evt){
  33         var target = getTargetedObject(evt);
  34         if (target.nodeName == "INPUT") return true;
  35         disableDefault(evt);
  36         var targetRow = getTargetRow(evt);
  37         targetRow.style.backgroundColor = base_properties["highLightColor"];
  38         this.listing.style.cursor = "move";
  39         this.targetRow = targetRow;
  40         this.lastOverPosition = targetRow.pos;
  41 };
  42
  43 FolderDDropControler.prototype.moveRow =  function(evt){
  44         var targetRow = this.targetRow;
  45         if (targetRow != null) {
  46                 this.noOver = false;
  47                 if (browser.isIE) document.selection.clear();
  48                 var overRow = getTargetRow(evt);
  49
  50                 if (overRow.pos == targetRow.pos) return;
  51
  52                 if (this.lastOverPosition < overRow.pos) { // move up
  53                         this.listing.insertBefore(targetRow, overRow.nextSibling);
  54                         this.prevDirUp = true;
  55                         this.lastOverPosition = overRow.pos;
  56                 }
  57                 else if (this.lastOverPosition > overRow.pos) { // move down
  58                         this.listing.insertBefore(targetRow, overRow);
  59                         this.prevDirUp = false;
  60                         this.lastOverPosition = overRow.pos;
  61                 }
  62                 else {
  63                         if (this.prevDirUp) {
  64                                 this.prevDirUp = false;
  65                                 this.listing.insertBefore(targetRow, overRow);
  66                         }
  67                         else {
  68                                 this.prevDirUp = true;
  69                                 this.listing.insertBefore(targetRow, overRow.nextSibling);
  70                         }
  71                 }
  72         }
  73 };
  74
  75 FolderDDropControler.prototype.drop =  function(evt){
  76         var targetRow = this.targetRow;
  77         if (targetRow != null) {
  78                 targetRow.style.backgroundColor="";
  79                 this.listing.style.cursor = "";
  80                 if (this.noOver) {
  81                         var thisControler = this;
  82                         setTimeout(function(){thisControler.reset();}, 50);
  83                         return;
  84                 }
  85                 if (this.lastOverPosition != null) {
  86                         // get new object position.
  87                         var trim = 0;
  88                         if (targetRow.pos < this.lastOverPosition && !this.prevDirUp)
  89                                 trim = -1;
  90                         else if (targetRow.pos > this.lastOverPosition && this.prevDirUp)
  91                                 trim = 1;
  92
  93                         // construct url
  94                         var object_id = targetRow.getElementsByTagName("INPUT")[0].getAttribute("value");
  95                         var url = this.folderUrl + "/moveObjectIdToPosition";
  96                         var form ="object_id=" + object_id + "&position:int=" +
  97                                            String(this.lastOverPosition - 1 + trim);
  98
  99                         // reinitialize positions
 100                         var rows = this.listing.getElementsByTagName("TR"), row;
 101                         for (var i = 0 ; i < rows.length ; i++) {
 102                                 row = rows[i];
 103                                 row.pos = i+1;
 104                                 if (i % 2 == 0)
 105                                         row.className = "even";
 106                                 else
 107                                         row.className = "odd";
 108                         }
 109
 110                         // send request
 111                         var req = new XMLHttpRequest();
 112                         req.open("POST", url, true);
 113                         req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
 114                         req.send(form);
 115                         var thisControler = this;
 116                         setTimeout(function(){thisControler.reset();}, 50);
 117                 }
 118         }
 119 };
 120
 121 FolderDDropControler.prototype.disableClickAfterDrop = function(evt) {
 122         var target = getTargetedObject(evt);
 123         if (!this.noOver) {
 124                 disablePropagation(evt);
 125                 disableDefault(evt);
 126         }
 127         this.reset();
 128 };
 129
 130 FolderDDropControler.prototype.reset = function() {
 131         this.targetRow = null;
 132         this.lastOverPosition = null;
 133         this.prevDirUp = null;
 134         this.noOver = true;
 135 }
 136
 137
 138
 139 function DropTarget(node, folderDDControler) {
 140         this.folderDDControler = folderDDControler;
 141         this.batchSize = parseInt(document.getElementById("BatchNavigationSize").innerHTML);
 142         var thisControler = this;
 143         node.onmouseup = function(evt){thisControler.drop(evt);};
 144         node.onmouseover = function(evt) {thisControler.highlightTarget(evt);};
 145         node.onmouseout = function(evt) {
 146                 var target = getTargetedObject(evt);
 147                 if (target.nodeName == "A" && target.className == "dropPageTarget")
 148                         target.className = "";
 149         };
 150 }
 151
 152 DropTarget.prototype.drop = function(evt) {
 153         var target = getTargetedObject(evt);
 154         if (target.nodeName == "A" &&
 155                 target.className != "previous" &&
 156                 target.className != "next") {
 157                 var pageNumber = parseInt(target.innerHTML);
 158                 var targetRow = this.folderDDControler.targetRow;
 159                 if ( !isNaN(pageNumber) && targetRow) {
 160                         this.folderDDControler.reset();
 161                 var object_id = targetRow.getElementsByTagName("INPUT")[0].getAttribute("value");
 162                 var url = this.folderDDControler.folderUrl + "/moveObjectIdToPosition";
 163                 var form ="object_id=" + object_id + "&position:int=" + String(this.batchSize * (pageNumber-1));
 164                         // send request
 165                         var req = new XMLHttpRequest();
 166                         req.open("POST", url, true);
 167                         req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");
 168                         req.send(form);
 169                         req.onreadystatechange = function() {
 170                                 if (req.readyState == 4) {
 171                                         switch (req.status) {
 172                                                 case 200:
 173                                                 case 204:
 174                                                 case 1223:
 175                                                         raiseMouseEvent(target, "click");
 176                                                         break;
 177                                                 default:
 178                                                         alert('Error: ' + req.status);
 179                                         };
 180                                 }
 181                         };
 182                 }
 183         }
 184 };
 185
 186 DropTarget.prototype.highlightTarget = function(evt){
 187         if (browser.isIE) document.selection.clear();
 188         var target = getTargetedObject(evt);
 189         if (this.folderDDControler.targetRow &&
 190                 target.nodeName == "A" &&
 191                 target.className != "previous" &&
 192                 target.className != "next")
 193                 target.className = "dropPageTarget";
 194 };
 195
 196
 197
 198
 199 function loadListing(evt) {
 200         var target = getTargetedObject(evt);
 201         disableDefault(evt);
 202         disablePropagation(evt);
 203         switch (target.nodeName) {
 204                 case "A" :
 205                         var parts = target.href.split('?')
 206                         var url = parts[0];
 207                         var query = '';
 208                         if (parts.length == 2)
 209                                 query = parts[1];
 210
 211                         var urlParts = url.split("/");
 212                         var url = urlParts.slice(0,urlParts.length-1).join("/");
 213                         if (query.search("template") == -1)
 214                                 query += "&template=folder_contents_macros&macro=FolderListing&fragmentId=FolderListing";
 215                         url = url + "/folder_contents?" + query;
 216
 217                         var fi = new FragmentImporter(url);
 218                         fi.load();
 219                         break;
 220
 221                 case "IMG" :
 222                         if (target.id == 'SetSortingAsDefault') {
 223                                 var parent = target.parentNode;
 224                                 var url = parent.href;
 225                                 url = url.replace("folder_contents", "folder_sort_control");
 226                                 parent.parentNode.removeChild(parent);
 227
 228                                 var req = new XMLHttpRequest();
 229                                 req.open("GET", url, true);
 230                                 req.send(null);
 231                         }
 232                         break;
 233         }
 234         return false;
 235 }