126baf5e58
* Renamed treeView.js to folderTreeView.js (more changes on this file forthcoming) -- this will soon be specifically for folders. * Added itemTreeView.js, with new Scholar.ItemTreeView class -- specifically for items. * The items list now supports 3 additional columns: rights, date added, and date modified. * For now, selecting an item loads the "I'm Feeling Lucky" result of a Google search on the item title.
110 lines
3.1 KiB
JavaScript
110 lines
3.1 KiB
JavaScript
Scholar.ItemTreeView = function(root)
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{
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this._treebox = null;
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this._dataItems = new Array();
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this.rowCount = 0;
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this._rootFolder = root;
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}
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Scholar.ItemTreeView.prototype.setTree = function(treebox)
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{
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if(this._treebox)
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return;
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this._treebox = treebox;
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var newRows = Scholar.Items.getTreeRows(this._rootFolder,"items");
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for(var i = 0; i < newRows.length; i++)
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this._showItem(newRows[i], i+1); //item ref, before row
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this._refreshHashMap();
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}
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Scholar.ItemTreeView.prototype.getCellText = function(row, column)
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{
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var obj = this._getItemAtRow(row);
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return obj.getField(column.id);
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}
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Scholar.ItemTreeView.prototype._showItem = function(item, beforeRow) { this._dataItems.splice(beforeRow, 0, item); this.rowCount++; }
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Scholar.ItemTreeView.prototype._hideItem = function(row) { this._dataItems.splice(row,1); this.rowCount--; }
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Scholar.ItemTreeView.prototype._getItemAtRow = function(row) { return this._dataItems[row]; }
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Scholar.ItemTreeView.prototype.isSorted = function() { return false; }
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Scholar.ItemTreeView.prototype.isSeparator = function(row) { return false; }
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Scholar.ItemTreeView.prototype.isContainer = function(row) { return false; }
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Scholar.ItemTreeView.prototype.getLevel = function(row) { return 0; }
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Scholar.ItemTreeView.prototype.getRowProperties = function(row, prop) { }
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Scholar.ItemTreeView.prototype.getColumnProperties = function(col, prop) { }
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Scholar.ItemTreeView.prototype.getCellProperties = function(row, col, prop) { }
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Scholar.ItemTreeView.prototype.getImageSrc = function(row, col) { }
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Scholar.ItemTreeView.prototype.cycleHeader = function(column)
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{
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var order = 0;
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if(order==0)
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{
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function columnSort(a,b)
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{
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return(a.getField(column.id) < b.getField(column.id)) ? -1 : (a.getField[column.id] > b.getField(column.id)) ? 1 : 0;
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}
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}
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else
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{
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function columnSort(a,b)
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{
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return(a.getField(column.id) > b.getField(column.id)) ? -1 : (a.getField[column.id] < b.getField(column.id)) ? 1 : 0;
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}
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}
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this._dataItems.sort(columnSort);
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this._refreshHashMap();
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this._treebox.invalidate();
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}
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Scholar.ItemTreeView.prototype.deleteSelection = function()
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{
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if(this.selection.count == 0)
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return;
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//create an array of selected items
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var rows = new Array();
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var start = new Object();
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var end = new Object();
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for (var i=0, len=this.selection.getRangeCount(); i<len; i++)
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{
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this.selection.getRangeAt(i,start,end);
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for (var j=start.value; j<=end.value; j++)
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rows.push(j);
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}
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//iterate and erase...
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this._treebox.beginUpdateBatch();
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for (var i=0; i<rows.length; i++)
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{
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//erase item/folder from DB
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this._getItemAtRow(rows[i]-i).erase();
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//remove row from tree:
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this._hideItem(rows[i]-i);
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this._treebox.rowCountChanged(rows[i]-i, -1);
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}
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this._treebox.endUpdateBatch();
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this._refreshHashMap();
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}
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Scholar.ItemTreeView.prototype._refreshHashMap = function()
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{
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// Create hash map of folder and object ids to row indexes
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this._itemRowMap = new Array();
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for(var i=0; i < this.rowCount; i++)
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this._itemRowMap[this._getItemAtRow(i).getID()] = i;
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//Scholar.debug(Scholar.varDump(this.folderRowMap));
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//Scholar.debug(Scholar.varDump(this.objectRowMap));
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} |