1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
6 * Javascript for omnibox.html, served from chrome://omnibox/
7 * This is used to debug omnibox ranking. The user enters some text
8 * into a box, submits it, and then sees lots of debug information
9 * from the autocompleter that shows what omnibox would do with that
12 * The simple object defined in this javascript file listens for
13 * certain events on omnibox.html, sends (when appropriate) the
14 * input text to C++ code to start the omnibox autcomplete controller
15 * working, and listens from callbacks from the C++ code saying that
16 * results are available. When results (possibly intermediate ones)
17 * are available, the Javascript formats them and displays them.
20 'mojo/public/js/bindings/connection',
21 'chrome/browser/ui/webui/omnibox/omnibox.mojom',
22 ], function(connector, browser) {
29 * Register our event handlers.
31 function initialize() {
32 $('omnibox-input-form').addEventListener(
33 'submit', startOmniboxQuery, false);
34 $('prevent-inline-autocomplete').addEventListener(
35 'change', startOmniboxQuery);
36 $('prefer-keyword').addEventListener('change', startOmniboxQuery);
37 $('page-classification').addEventListener('change', startOmniboxQuery);
38 $('show-details').addEventListener('change', refresh);
39 $('show-incomplete-results').addEventListener('change', refresh);
40 $('show-all-providers').addEventListener('change', refresh);
44 * @type {OmniboxResultMojo} an array of all autocomplete results we've seen
45 * for this query. We append to this list once for every call to
46 * handleNewAutocompleteResult. See omnibox.mojom for details..
48 var progressiveAutocompleteResults = [];
51 * @type {number} the value for cursor position we sent with the most
52 * recent request. We need to remember this in order to display it
53 * in the output; otherwise it's hard or impossible to determine
54 * from screen captures or print-to-PDFs.
56 var cursorPositionUsed = -1;
59 * Extracts the input text from the text field and sends it to the
60 * C++ portion of chrome to handle. The C++ code will iteratively
61 * call handleNewAutocompleteResult as results come in.
63 function startOmniboxQuery(event) {
64 // First, clear the results of past calls (if any).
65 progressiveAutocompleteResults = [];
66 // Then, call chrome with a five-element list:
67 // - first element: the value in the text box
68 // - second element: the location of the cursor in the text box
69 // - third element: the value of prevent-inline-autocomplete
70 // - forth element: the value of prefer-keyword
71 // - fifth element: the value of page-classification
72 cursorPositionUsed = $('input-text').selectionEnd;
73 page.browser_.startOmniboxQuery(
74 $('input-text').value,
76 $('prevent-inline-autocomplete').checked,
77 $('prefer-keyword').checked,
78 parseInt($('page-classification').value));
79 // Cancel the submit action. i.e., don't submit the form. (We handle
80 // display the results solely with Javascript.)
81 event.preventDefault();
85 * Returns a simple object with information about how to display an
86 * autocomplete result data field.
87 * @param {string} header the label for the top of the column/table.
88 * @param {string} urlLabelForHeader the URL that the header should point
90 * @param {string} propertyName the name of the property in the autocomplete
91 * result record that we lookup.
92 * @param {boolean} displayAlways whether the property should be displayed
93 * regardless of whether we're in detailed more.
94 * @param {string} tooltip a description of the property that will be
95 * presented as a tooltip when the mouse is hovered over the column title.
98 function PresentationInfoRecord(header, url, propertyName, displayAlways,
100 this.header = header;
101 this.urlLabelForHeader = url;
102 this.propertyName = propertyName;
103 this.displayAlways = displayAlways;
104 this.tooltip = tooltip;
108 * A constant that's used to decide what autocomplete result
109 * properties to output in what order. This is an array of
110 * PresentationInfoRecord() objects; for details see that
112 * @type {Array.<Object>}
115 var PROPERTY_OUTPUT_ORDER = [
116 new PresentationInfoRecord('Provider', '', 'provider_name', true,
117 'The AutocompleteProvider suggesting this result.'),
118 new PresentationInfoRecord('Type', '', 'type', true,
119 'The type of the result.'),
120 new PresentationInfoRecord('Relevance', '', 'relevance', true,
121 'The result score. Higher is more relevant.'),
122 new PresentationInfoRecord('Contents', '', 'contents', true,
123 'The text that is presented identifying the result.'),
124 new PresentationInfoRecord(
125 'Can Be Default', '', 'allowed_to_be_default_match', false,
126 'A green checkmark indicates that the result can be the default ' +
127 'match (i.e., can be the match that pressing enter in the omnibox ' +
129 new PresentationInfoRecord('Starred', '', 'starred', false,
130 'A green checkmark indicates that the result has been bookmarked.'),
131 new PresentationInfoRecord(
132 'HWYT', '', 'is_history_what_you_typed_match', false,
133 'A green checkmark indicates that the result is an History What You ' +
135 new PresentationInfoRecord('Description', '', 'description', false,
136 'The page title of the result.'),
137 new PresentationInfoRecord('URL', '', 'destination_url', true,
138 'The URL for the result.'),
139 new PresentationInfoRecord('Fill Into Edit', '', 'fill_into_edit', false,
140 'The text shown in the omnibox when the result is selected.'),
141 new PresentationInfoRecord(
142 'Inline Autocompletion', '', 'inline_autocompletion', false,
143 'The text shown in the omnibox as a blue highlight selection ' +
144 'following the cursor, if this match is shown inline.'),
145 new PresentationInfoRecord('Del', '', 'deletable', false,
146 'A green checkmark indicates that the result can be deleted from ' +
147 'the visit history.'),
148 new PresentationInfoRecord('Prev', '', 'from_previous', false, ''),
149 new PresentationInfoRecord(
151 'http://code.google.com/codesearch#OAMlx_jo-ck/src/content/public/' +
152 'common/page_transition_types.h&exact_package=chromium&l=24',
154 'How the user got to the result.'),
155 new PresentationInfoRecord(
156 'Done', '', 'provider_done', false,
157 'A green checkmark indicates that the provider is done looking for ' +
159 new PresentationInfoRecord(
160 'Associated Keyword', '', 'associated_keyword', false,
161 'If non-empty, a "press tab to search" hint will be shown and will ' +
162 'engage this keyword.'),
163 new PresentationInfoRecord(
164 'Keyword', '', 'keyword', false,
165 'The keyword of the search engine to be used.'),
166 new PresentationInfoRecord(
167 'Duplicates', '', 'duplicates', false,
168 'The number of matches that have been marked as duplicates of this ' +
170 new PresentationInfoRecord(
171 'Additional Info', '', 'additional_info', false,
172 'Provider-specific information about the result.')
176 * Returns an HTML Element of type table row that contains the
177 * headers we'll use for labeling the columns. If we're in
178 * detailed_mode, we use all the headers. If not, we only use ones
179 * marked displayAlways.
181 function createAutocompleteResultTableHeader() {
182 var row = document.createElement('tr');
183 var inDetailedMode = $('show-details').checked;
184 for (var i = 0; i < PROPERTY_OUTPUT_ORDER.length; i++) {
185 if (inDetailedMode || PROPERTY_OUTPUT_ORDER[i].displayAlways) {
186 var headerCell = document.createElement('th');
187 if (PROPERTY_OUTPUT_ORDER[i].urlLabelForHeader != '') {
188 // Wrap header text in URL.
189 var linkNode = document.createElement('a');
190 linkNode.href = PROPERTY_OUTPUT_ORDER[i].urlLabelForHeader;
191 linkNode.textContent = PROPERTY_OUTPUT_ORDER[i].header;
192 headerCell.appendChild(linkNode);
194 // Output header text without a URL.
195 headerCell.textContent = PROPERTY_OUTPUT_ORDER[i].header;
196 headerCell.className = 'table-header';
197 headerCell.title = PROPERTY_OUTPUT_ORDER[i].tooltip;
199 row.appendChild(headerCell);
206 * @param {AutocompleteMatchMojo} autocompleteSuggestion the particular
207 * autocomplete suggestion we're in the process of displaying.
208 * @param {string} propertyName the particular property of the autocomplete
209 * suggestion that should go in this cell.
210 * @return {HTMLTableCellElement} that contains the value within this
211 * autocompleteSuggestion associated with propertyName.
213 function createCellForPropertyAndRemoveProperty(autocompleteSuggestion,
215 var cell = document.createElement('td');
216 if (propertyName in autocompleteSuggestion) {
217 if (propertyName == 'additional_info') {
218 // |additional_info| embeds a two-column table of provider-specific data
219 // within this cell. |additional_info| is an array of
220 // AutocompleteAdditionalInfo.
221 var additionalInfoTable = document.createElement('table');
222 for (var i = 0; i < autocompleteSuggestion[propertyName].length; i++) {
223 var additionalInfo = autocompleteSuggestion[propertyName][i];
224 var additionalInfoRow = document.createElement('tr');
226 // Set the title (name of property) cell text.
227 var propertyCell = document.createElement('td');
228 propertyCell.textContent = additionalInfo.key + ':';
229 propertyCell.className = 'additional-info-property';
230 additionalInfoRow.appendChild(propertyCell);
232 // Set the value of the property cell text.
233 var valueCell = document.createElement('td');
234 valueCell.textContent = additionalInfo.value;
235 valueCell.className = 'additional-info-value';
236 additionalInfoRow.appendChild(valueCell);
238 additionalInfoTable.appendChild(additionalInfoRow);
240 cell.appendChild(additionalInfoTable);
241 } else if (typeof autocompleteSuggestion[propertyName] == 'boolean') {
242 // If this is a boolean, display a checkmark or an X instead of
243 // the strings true or false.
244 if (autocompleteSuggestion[propertyName]) {
245 cell.className = 'check-mark';
246 cell.textContent = '✔';
248 cell.className = 'x-mark';
249 cell.textContent = '✗';
252 var text = String(autocompleteSuggestion[propertyName]);
253 // If it's a URL wrap it in an href.
254 var re = /^(http|https|ftp|chrome|file):\/\//;
256 var aCell = document.createElement('a');
257 aCell.textContent = text;
259 cell.appendChild(aCell);
261 // All other data types (integer, strings, etc.) display their
262 // normal toString() output.
263 cell.textContent = autocompleteSuggestion[propertyName];
266 } // else: if propertyName is undefined, we leave the cell blank
271 * Appends some human-readable information about the provided
272 * autocomplete result to the HTML node with id omnibox-debug-text.
273 * The current human-readable form is a few lines about general
274 * autocomplete result statistics followed by a table with one line
275 * for each autocomplete match. The input parameter is an OmniboxResultMojo.
277 function addResultToOutput(result) {
278 var output = $('omnibox-debug-text');
279 var inDetailedMode = $('show-details').checked;
280 var showIncompleteResults = $('show-incomplete-results').checked;
281 var showPerProviderResults = $('show-all-providers').checked;
283 // Always output cursor position.
284 var p = document.createElement('p');
285 p.textContent = 'cursor position = ' + cursorPositionUsed;
286 output.appendChild(p);
288 // Output the result-level features in detailed mode and in
289 // show incomplete results mode. We do the latter because without
290 // these result-level features, one can't make sense of each
292 if (inDetailedMode || showIncompleteResults) {
293 var p1 = document.createElement('p');
294 p1.textContent = 'elapsed time = ' +
295 result.time_since_omnibox_started_ms + 'ms';
296 output.appendChild(p1);
297 var p2 = document.createElement('p');
298 p2.textContent = 'all providers done = ' + result.done;
299 output.appendChild(p2);
300 var p3 = document.createElement('p');
301 p3.textContent = 'host = ' + result.host;
302 if ('is_typed_host' in result) {
303 // Only output the is_typed_host information if available. (It may
304 // be missing if the history database lookup failed.)
305 p3.textContent = p3.textContent + ' has is_typed_host = ' +
306 result.is_typed_host;
308 output.appendChild(p3);
311 // Combined results go after the lines below.
312 var group = document.createElement('a');
313 group.className = 'group-separator';
314 group.textContent = 'Combined results.';
315 output.appendChild(group);
317 // Add combined/merged result table.
318 var p = document.createElement('p');
319 p.appendChild(addResultTableToOutput(result.combined_results));
320 output.appendChild(p);
322 // Move forward only if you want to display per provider results.
323 if (!showPerProviderResults) {
327 // Individual results go after the lines below.
328 var group = document.createElement('a');
329 group.className = 'group-separator';
330 group.textContent = 'Results for individual providers.';
331 output.appendChild(group);
333 // Add the per-provider result tables with labels. We do not append the
334 // combined/merged result table since we already have the per provider
336 for (var i = 0; i < result.results_by_provider.length; i++) {
337 var providerResults = result.results_by_provider[i];
338 // If we have no results we do not display anything.
339 if (providerResults.results.length == 0) {
342 var p = document.createElement('p');
343 p.appendChild(addResultTableToOutput(providerResults.results));
344 output.appendChild(p);
349 * @param {Object} result an array of AutocompleteMatchMojos.
350 * @return {HTMLTableCellElement} that is a user-readable HTML
351 * representation of this object.
353 function addResultTableToOutput(result) {
354 var inDetailedMode = $('show-details').checked;
355 // Create a table to hold all the autocomplete items.
356 var table = document.createElement('table');
357 table.className = 'autocomplete-results-table';
358 table.appendChild(createAutocompleteResultTableHeader());
359 // Loop over every autocomplete item and add it as a row in the table.
360 for (var i = 0; i < result.length; i++) {
361 var autocompleteSuggestion = result[i];
362 var row = document.createElement('tr');
363 // Loop over all the columns/properties and output either them
364 // all (if we're in detailed mode) or only the ones marked displayAlways.
365 // Keep track of which properties we displayed.
366 var displayedProperties = {};
367 for (var j = 0; j < PROPERTY_OUTPUT_ORDER.length; j++) {
368 if (inDetailedMode || PROPERTY_OUTPUT_ORDER[j].displayAlways) {
369 row.appendChild(createCellForPropertyAndRemoveProperty(
370 autocompleteSuggestion, PROPERTY_OUTPUT_ORDER[j].propertyName));
371 displayedProperties[PROPERTY_OUTPUT_ORDER[j].propertyName] = true;
375 // Now, if we're in detailed mode, add all the properties that
376 // haven't already been output. (We know which properties have
377 // already been output because we delete the property when we output
378 // it. The only way we have properties left at this point if
379 // we're in detailed mode and we're getting back properties
380 // not listed in PROPERTY_OUTPUT_ORDER. Perhaps someone added
381 // something to the C++ code but didn't bother to update this
382 // Javascript? In any case, we want to display them.)
383 if (inDetailedMode) {
384 for (var key in autocompleteSuggestion) {
385 if (!displayedProperties[key] &&
386 typeof autocompleteSuggestion[key] != 'function') {
387 var cell = document.createElement('td');
388 cell.textContent = key + '=' + autocompleteSuggestion[key];
389 row.appendChild(cell);
394 table.appendChild(row);
399 /* Repaints the page based on the contents of the array
400 * progressiveAutocompleteResults, which represents consecutive
401 * autocomplete results. We only display the last (most recent)
402 * entry unless we're asked to display incomplete results. For an
403 * example of the output, play with chrome://omnibox/
406 // Erase whatever is currently being displayed.
407 var output = $('omnibox-debug-text');
408 output.innerHTML = '';
410 if (progressiveAutocompleteResults.length > 0) { // if we have results
411 // Display the results.
412 var showIncompleteResults = $('show-incomplete-results').checked;
413 var startIndex = showIncompleteResults ? 0 :
414 progressiveAutocompleteResults.length - 1;
415 for (var i = startIndex; i < progressiveAutocompleteResults.length; i++) {
416 addResultToOutput(progressiveAutocompleteResults[i]);
421 function OmniboxPageImpl(browser) {
422 this.browser_ = browser;
427 OmniboxPageImpl.prototype =
428 Object.create(browser.OmniboxPageStub.prototype);
430 OmniboxPageImpl.prototype.handleNewAutocompleteResult = function(result) {
431 progressiveAutocompleteResults.push(result);
435 return function(handle) {
436 connection = new connector.Connection(handle, OmniboxPageImpl,
437 browser.OmniboxUIHandlerMojoProxy);