import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/xml/test/old/books/books.js

@@ -0,0 +1,97 @@
+
+// An inefficient, but effective bubble sort
+function sort(collection, key)
+{
+  var i, j;
+  var count = collection.length;
+  var parent, child;
+ 
+  for (i = count-1; i >= 0; i--) {
+    for (j = 1; j <= i; j++) {
+      if (collection[j-1][key] > collection[j][key]) {
+         // Move the item both in the local array and
+         // in the tree
+         child = collection[j];
+         parent = child.parentNode;
+
+         collection[j] = collection[j-1];
+         collection[j-1] = child;
+
+         parent.removeChild(child);       
+         parent.insertBefore(child, collection[j]);
+      }
+    }
+  }
+}
+
+// Set user properties on the nodes in the collection
+// based on information found in its children. For example,
+// make a property "Author" based on the content of the
+// "Author" element found in the childNode list of the node.
+// This makes later sorting more efficient
+function collectInfo(nodes, propNames)
+{
+  var i, j, k;
+  var ncount = nodes.length; 
+  var pcount = propNames.length;
+
+  for (i = 0; i < ncount; i++) {
+    var node = nodes[i];
+    var childNodes = node.childNodes;
+    var ccount = childNodes.length;
+ 
+    for (j = 0; j < ccount; j++) {
+      var child = childNodes[j];
+
+      if (child.nodeType == Node.ELEMENT_NODE) {
+        var tagName = child.tagName;
+
+        for (k = 0; k < pcount; k++) {
+          var prop = propNames[k];
+          if (prop == tagName) {
+            node[prop] = child.firstChild.data;
+          }  
+        }
+      }    
+    }
+  }
+}
+
+var enabled = true;
+function toggleStyleSheet()
+{
+  if (enabled) {
+    document.styleSheets[2].disabled = true;
+  }
+  else {
+    document.styleSheets[2].disabled = false;
+  }
+
+  enabled = !enabled;
+}
+
+// XXX This is a workaround for a bug where
+// changing the disabled state of a stylesheet can't
+// be done in an event handler. For now, we do it
+// in a zero-delay timeout.
+function initiateToggle()
+{
+  setTimeout(toggleStyleSheet, 0);
+}
+
+var sortableProps = new Array("Author", "Title", "ISBN");
+var books = new Array();
+
+// We uppercase the tagName as a workaround for a bug
+// that loses the original case of the tag.
+var bookset = document.getElementsByTagName("Book");
+
+// We need to create a "non-live" array to operate on. Since
+// we'll be moving things around in this array, we can't use
+// the read-only, live one returned by getElementsByTagName.
+for (var i=0; i < bookset.length; i++) {
+  books[i] = bookset[i];
+}
+
+collectInfo(books, sortableProps);
+