Change the existing extension samples page to an automatically-generated searchable directory.

chrome/common/extensions/docs/js/sample_search.js

+/**
+ * Copyright (c) 2010 The Chromium Authors. All rights reserved.  Use of this
+ * source code is governed by a BSD-style license that can be found in the
+ * LICENSE file.
+ */
+
+function testSearchSupport() {
+  var i = document.createElement("input");
+  i.setAttribute("type", "search");
+  return i.type !== "text";
+};
+
+function filterSamples() {
+  var clearlink = document.getElementById('clearlink');
+  var searchinput = document.getElementById('searchinput');
+  var noresults = document.getElementById('noresults');
+
+  var searchtext = searchinput.value.toUpperCase();
+  if (!canclear && searchtext != "" ) {
+    clearlink.style.display = "inline";
+  } else {
+    clearlink.style.display = "none";
+  }
+  if (searchtext == currentfilter) {
+    return;
+  } else {
+    currentfilter = searchtext;
+  }
+
+  noresults.style.display = 'none';
+  var num_found = 0;
+  for (var key in search_data) {
+    if (search_data.hasOwnProperty(key)) {
+      var sampleentry = document.getElementById(key);
+      if (search_data[key].indexOf(searchtext) == -1) {
+        sampleentry.style.display = "none";
+      } else {
+        sampleentry.style.display = "block";
+        num_found += 1;
+      }
+    }
+  }
+  if (num_found == 0) {
+    noresults.style.display = 'block';
+  }
+  removeSelected();
+};
+
+function removeSelected() {
+  var anchors = document.getElementsByTagName('a');
+  for (var i = 0, anchor; anchor = anchors[i]; i++) {
+    if (anchor.className == "selected") {
+      anchor.className = "";
+    }
+  }
+};
+
+function setFilter(text, target) {
+  var searchinput = document.getElementById('searchinput');
+  searchinput.value = text;
+  filterSamples();
+  target.className = "selected";
+  searchinput.focus();
+};
+
+function clearFilter() {
+  var searchinput = document.getElementById('searchinput');
+  searchinput.value = "";
+  filterSamples();
+  searchinput.focus();
+};
+
+function initSearch() {
+  var searchinput = document.getElementById('searchinput');
+  if (canclear) {
+    searchinput.addEventListener('click', filterSamples, false);
+  }
+};
+
+var currentfilter = "";
+var canclear = testSearchSupport();
+window.addEventListener('load', initSearch, false);