Adding local html page used in Instant Extended mode when instant is disabled or unavailable.

chrome/browser/resources/local_omnibox_popup/local_omnibox_popup.js

+// Copyright 2012 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.
+
+// =============================================================================
+//                               Debugging code
+// =============================================================================
+
+// Set to true to debug this page locally.
+var DEBUG_MODE = false;
+
+function addDebugSuggestions() {
+  function makeFakeNativeSuggestion(html, rid, ranking) {
+    var node = document.createElement('div');
+    node.innerHTML = html;
+    return {
+      combinedNode: node,
+      rid: rid,
+      rankingData: {
+        relevance: ranking
+      }
+    };
+  }
+  var n = [];
+  n.push(makeFakeNativeSuggestion('Suggestion <b>ONE</b>', 1, 100));
+  n.push(makeFakeNativeSuggestion('Suggestion <b>TWO</b>', 2, 50));
+  n.push(makeFakeNativeSuggestion('Suggestion <b>ZERO</b>', 3, 500));
+  window.cideb.nativeSuggestions = n;
+  window.cideb.onnativesuggestions();
+}
+
+function setUpDebugMockObject() {
+  window.cideb = {
+    setNonNativeDropdownHeight: function(h) {
+      window.console.log('setNonNativeDropdownHeight(' + h + ')');
+    },
+    setRestrictedValue: function(rid) {
+      window.console.log('setRestrictedValue(' + rid + ')');
+    },
+    navigateContentWindow: function(rid) {
+      window.console.log('navigateContentWindow(' + rid + ')');
+    },
+    deb_addSuggestions: addDebugSuggestions
+  };
+}
+
+// =============================================================================
+//                               Util functions
+// =============================================================================
+
+// The maximum number of suggestions to show.
+var MAX_SUGGESTIONS_TO_SHOW = 5;
+
+function addSuggestionToBox(suggestion, box, suggestionRank) {

[Evan Stade, 2012/12/14 01:09:25]

docs for every one of these functions and parameters.

[Shishir, 2012/12/14 03:46:52]

Done.

+  var suggestionDiv = document.createElement('div');
+  suggestionDiv.classList.add('suggestion');
+  if (suggestionRank == 0)
+    suggestionDiv.classList.add('selected');
+
+  var clock = document.createElement('div');
+  clock.className = 'clock';
+  suggestionDiv.appendChild(clock);
+
+  var contentsContainer = document.createElement('div');
+  contentsContainer.className = 'contents';
+  var contents = suggestion.combinedNode;
+  var restrictedId = suggestion.rid;
+  contentsContainer.appendChild(contents);
+  suggestionDiv.appendChild(contentsContainer);
+  suggestionDiv.onclick = function() {
+    handleSuggestionClick(restrictedId);
+  }
+  // TODO: hover stuff

[Evan Stade, 2012/12/14 01:09:25]

TODO(shouldAlwaysHaveANameHere): and the comment should have final punctuation
and be more specific than "hover stuff".

[Shishir, 2012/12/14 03:46:52]

Done.

+  var restrictedIdDiv = document.createElement('div');
+  restrictedIdDiv.innerHTML = restrictedId;
+  restrictedIdDiv.className = 'rid';

[Evan Stade, 2012/12/14 01:09:25]

better name than rid here too.

[Shishir, 2012/12/14 03:46:52]

Done.

+  suggestionDiv.appendChild(restrictedIdDiv);
+
+  box.appendChild(suggestionDiv);
+}
+
+function renderSuggestions(nativeSuggestions) {
+  clearSuggestions();
+
+  var box = $('suggestionsBox');
+  for (var i = 0, suggestion;

[Evan Stade, 2012/12/14 01:09:25]

no need for suggestion to be inside the loop, or stored in a temp variable at
all.

i <= MAX && i <= nativeSuggestions.length

[Shishir, 2012/12/14 03:46:52]

Done.

+       (suggestion = nativeSuggestions[i]) && i <= MAX_SUGGESTIONS_TO_SHOW;
+       i++) {

[Evan Stade, 2012/12/14 01:09:25]

++i

[Shishir, 2012/12/14 03:46:52]

Done.

+    addSuggestionToBox(suggestion, box, i);
+  }
+}
+
+function clearSuggestions() {
+  $('suggestionsBox').innerHTML = '';
+}
+
+function getDropdownHeight() {
+  return $('suggestionsBox').offsetHeight;
+}
+
+function getSelectedSuggestionIndex() {
+  var suggestions = $('suggestionsBox').childNodes;
+  for (var i = 0, suggestion; suggestion = suggestions[i]; i++) {

[Evan Stade, 2012/12/14 01:09:25]

++i

[Shishir, 2012/12/14 03:46:52]

Done.

+    if (suggestion.classList.contains('selected'))
+      return i;
+  }
+  return -1;
+}
+
+function selectSuggestionAtIndex(index, ridCallback) {
+  var oldSelection = $('suggestionsBox').querySelector('.selected');
+  oldSelection.classList.remove('selected');
+  var restrictedId = getRid(oldSelection);
+  ridCallback(restrictedId);
+
+  var selection = index + 1;
+  var newSelection = $('suggestionsBox').querySelector(
+      '.suggestion:nth-of-type(' + selection + ')');
+  newSelection.classList.add('selected');
+}
+
+function getRid(suggestion) {

[Evan Stade, 2012/12/14 01:09:25]

perfect example of why you should not abbreviate things like restrictedId. This
looks like "get rid of (i.e. delete) suggestion"

[Shishir, 2012/12/14 03:46:52]

Done.

+  for (var i = 0, childNode; childNode = suggestion.childNodes[i]; i++) {
+    if (childNode.className == 'rid')
+      return parseInt(childNode.innerHTML);
+  }
+  return -1;
+}
+
+// =============================================================================
+//                             Handlers / API stuff
+// =============================================================================
+
+function getAPIObjectHandle() {

[Evan Stade, 2012/12/14 01:09:25]

getApiObjectHandle

[Shishir, 2012/12/14 03:46:52]

Done.

+  if (window.cideb)
+    return window.cideb;
+  if (window.navigator && window.navigator.searchBox)
+    return window.navigator.searchBox;
+  if (window.chrome && window.chrome.searchBox)
+    return window.chrome.searchBox;
+  return null;
+}
+
+function handleNativeSuggestions() {
+  var apiHandle = getAPIObjectHandle();
+
+  var nativeSuggestions = apiHandle.nativeSuggestions;
+  if (nativeSuggestions) {
+    nativeSuggestions.sort(function(a, b) {
+      return b.rankingData.relevance - a.rankingData.relevance;
+    });
+    renderSuggestions(nativeSuggestions);
+  } else {
+    clearSuggestions();
+  }
+
+  var height = getDropdownHeight();
+  apiHandle.show(2, height);
+
+  if (nativeSuggestions && nativeSuggestions.length > 0) {
+    apiHandle.setRestrictedAutocompleteText(
+        nativeSuggestions[getSelectedSuggestionIndex()].rid);
+  }
+}
+
+function handleSuggestionClick(rid) {
+  var apiHandle = getAPIObjectHandle();
+  clearSuggestions();
+  apiHandle.navigateContentWindow(rid);
+}
+
+function handleKeyPress(e) {
+  var apiHandle = getAPIObjectHandle();
+  function callback(rid) {
+    apiHandle.setRestrictedValue(rid);
+  }
+
+  switch (e.keyCode) {
+    case 38:  // Up arrow
+      selectSuggestionAtIndex(getSelectedSuggestionIndex() - 1, callback);

[Evan Stade, 2012/12/14 01:09:25]

does this handle overflow or underflow correctly?

[Shishir, 2012/12/14 03:46:52]

Done.

+      break;
+    case 40:  // Down arrow
+      selectSuggestionAtIndex(getSelectedSuggestionIndex() + 1, callback);
+      break;
+  }
+}
+
+function onSubmit(e) {
+}
+
+function setUpAPI() {
+  if (DEBUG_MODE)
+    setUpDebugMockObject();
+
+  var apiHandle = getAPIObjectHandle();
+  apiHandle.onnativesuggestions = handleNativeSuggestions;
+  apiHandle.onkeypress = handleKeyPress;
+  apiHandle.onsubmit = onSubmit;
+}
+
+document.addEventListener('DOMContentLoaded', setUpAPI);