Tablesort javascript file

phpgwapi/js/tablesort/tablesort.js

@@ -0,0 +1,157 @@
+/******************************************************************************
+ * Sort tables by column                                                      *
+ * Copyright (C) 2002 by Mike Hall                                            *
+ * Please see http://www.brainjar.com for terms of use.                       *
+ *                                                                            *
+ * This program is free software; you can redistribute it and/or              *
+ * modify it under the terms of the GNU General Public License                *
+ * as published by the Free Software Foundation; either version 2             *
+ * of the License, or (at your option) any later version.                     *
+ *                                                                            *
+ * This program is distributed in the hope that it will be useful,            *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of             *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
+ * GNU General Public License for more details.                               *
+ *                                                                            *
+ * You should have received a copy of the GNU General Public License          *
+ * along with this program; if not, write to the Free Software                *
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.*
+ ******************************************************************************/
+
+/* function         sortTable 
+ * @author          Mike Hall
+ * @abstract        Sorts an table by selection sort
+ * @param int col   Number (0-n)of the column which will be used for the sorting
+ * @param string section  name of the id of the sorted section
+ */
+function sortTable(col,section) {
+
+  // Get the table section to sort.
+  var tblEl = document.getElementById(section);
+
+  // Set up an array of reverse sort flags, if not done already.
+  if (tblEl.reverseSort == null)
+    tblEl.reverseSort = new Array();
+
+  // If this column was the last one sorted, reverse its sort direction.
+  if (col == tblEl.lastColumn)
+    tblEl.reverseSort[col] = !tblEl.reverseSort[col];
+
+  // Remember this column as the last one sorted.
+  tblEl.lastColumn = col;
+
+  // Set the table display style to "none" - necessary for Netscape 6 
+  // browsers.
+  var oldDsply = tblEl.style.display;
+  tblEl.style.display = "none";
+
+  // Sort the rows based on the content of the specified column using a
+  // selection sort.
+
+  var tmpEl;
+  var i, j;
+  var minVal, minIdx;
+  var testVal;
+  var cmp;
+
+  for (i = 0; i < tblEl.rows.length - 1; i++) {
+
+    // Assume the current row has the minimum value.
+    minIdx = i;
+    minVal = TSgetTextValue(tblEl.rows[i].cells[col]);
+
+    // Search the rows that follow the current one for a smaller value.
+    for (j = i + 1; j < tblEl.rows.length; j++) {
+      testVal = TSgetTextValue(tblEl.rows[j].cells[col]);
+      cmp = TScompareValues(minVal, testVal);
+      // Reverse order?
+      if (tblEl.reverseSort[col])
+        cmp = -cmp;
+      // If this row has a smaller value than the current minimum, remember its
+      // position and update the current minimum value.
+      if (cmp > 0) {
+        minIdx = j;
+        minVal = testVal;
+      }
+    }
+
+    // By now, we have the row with the smallest value. Remove it from the
+    // table and insert it before the current row.
+    if (minIdx > i) {
+      tmpEl = tblEl.removeChild(tblEl.rows[minIdx]);
+      tblEl.insertBefore(tmpEl, tblEl.rows[i]);
+    }
+  }
+
+  // Restore the table's display style.
+  tblEl.style.display = oldDsply;
+
+  return false;
+}
+
+//-----------------------------------------------------------------------------
+// Functions to get and compare values during a sort.
+//-----------------------------------------------------------------------------
+
+// This code is necessary for browsers that don't reflect the DOM constants
+// (like IE).
+if (document.ELEMENT_NODE == null) {
+  document.ELEMENT_NODE = 1;
+  document.TEXT_NODE = 3;
+}
+
+function TSgetTextValue(el) {
+
+  var i;
+  var s;
+
+  // Find and concatenate the values of all text nodes contained within the
+  // element.
+  s = "";
+  for (i = 0; i < el.childNodes.length; i++)
+    if (el.childNodes[i].nodeType == document.TEXT_NODE)
+      s += el.childNodes[i].nodeValue;
+    else if (el.childNodes[i].nodeType == document.ELEMENT_NODE &&
+             el.childNodes[i].tagName == "BR")
+      s += " ";
+    else
+      // Use recursion to get text within sub-elements.
+      s += TSgetTextValue(el.childNodes[i]);
+
+  return TSnormalizeString(s);
+}
+
+function TScompareValues(v1, v2) {
+
+  var f1, f2;
+
+  // If the values are numeric, convert them to floats.
+
+  f1 = parseFloat(v1);
+  f2 = parseFloat(v2);
+  if (!isNaN(f1) && !isNaN(f2)) {
+    v1 = f1;
+    v2 = f2;
+  }
+
+  // Compare the two values.
+  if (v1 == v2)
+    return 0;
+  if (v1 > v2)
+    return 1
+  return -1;
+}
+
+// Regular expressions for normalizing white space.
+var whtSpEnds = new RegExp("^\\s*|\\s*$", "g");
+var whtSpMult = new RegExp("\\s\\s+", "g");
+
+function TSnormalizeString(s) {
+
+  s = s.replace(whtSpMult, " ");  // Collapse any multiple whites space.
+  s = s.replace(whtSpEnds, "");   // Remove leading or trailing white space.
+
+  return s;
+}
+
+