diff options
Diffstat (limited to 'chromium/chrome/browser/resources/chromeos/chromevox/extensions/searchvox/search.js')
-rw-r--r-- | chromium/chrome/browser/resources/chromeos/chromevox/extensions/searchvox/search.js | 441 |
1 files changed, 0 insertions, 441 deletions
diff --git a/chromium/chrome/browser/resources/chromeos/chromevox/extensions/searchvox/search.js b/chromium/chrome/browser/resources/chromeos/chromevox/extensions/searchvox/search.js deleted file mode 100644 index 9c8175a6627..00000000000 --- a/chromium/chrome/browser/resources/chromeos/chromevox/extensions/searchvox/search.js +++ /dev/null @@ -1,441 +0,0 @@ -// Copyright 2014 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. - - -/** - * @fileoverview Uses ChromeVox API to enhance the search experience. - */ - -goog.provide('cvox.Search'); - -goog.require('cvox.ChromeVox'); -goog.require('cvox.SearchConstants'); -goog.require('cvox.SearchResults'); -goog.require('cvox.SearchUtil'); -goog.require('cvox.UnknownResult'); - -/** - * @constructor - */ -cvox.Search = function() { -}; - -/** - * Selectors to match results. - * @type {Object<string>} - */ -cvox.Search.selectors = {}; - -/** - * Selectors for web results. - */ -cvox.Search.webSelectors = { - /* Topstuff typically contains important messages to be added first. */ - TOPSTUFF_SELECT: '#topstuff', - SPELL_SUGG_SELECT: '.ssp', - SPELL_CORRECTION_SELECT: '.sp_cnt', - KNOW_PANEL_SELECT: '.knop', - RESULT_SELECT: '.g', - RELATED_SELECT: '#brs' -}; - -/** - * Selectors for image results. - */ -cvox.Search.imageSelectors = { - IMAGE_CATEGORIES_SELECT: '#ifbc .rg_fbl', - IMAGE_RESULT_SELECT: '#rg_s .rg_di' -}; - -/** - * Index of the currently synced result. - * @type {number} - */ -cvox.Search.index; - -/** - * Array of the search results. - * @type {Array<Element>} - */ -cvox.Search.results = []; - -/** - * Array of the navigation panes. - * @type {Array<Element>} - */ -cvox.Search.panes = []; - -/** - * Index of the currently synced pane. - * @type {number} - */ -cvox.Search.paneIndex; - -/** - * If currently synced item is a pane. - */ -cvox.Search.isPane = false; - -/** - * Class of a selected pane. - */ -cvox.Search.SELECTED_PANE_CLASS = 'hdtb_mitem hdtb_msel'; - - -/** - * Speak and sync. - * @private - */ -cvox.Search.speakSync_ = function() { - var result = cvox.Search.results[cvox.Search.index]; - var resultType = cvox.Search.getResultType(result); - var isSpoken = resultType.speak(result); - cvox.ChromeVox.syncToNode(resultType.getSyncNode(result), !isSpoken); - cvox.Search.isPane = false; -}; - -/** - * Sync the search result index to ChromeVox. - */ -cvox.Search.syncToIndex = function() { - cvox.ChromeVox.tts.stop(); - var prop = { endCallback: cvox.Search.speakSync_ }; - if (cvox.Search.index === 0) { - cvox.ChromeVox.tts.speak('First result', cvox.QueueMode.QUEUE, prop); - } else if (cvox.Search.index === cvox.Search.results.length - 1) { - cvox.ChromeVox.tts.speak('Last result', cvox.QueueMode.QUEUE, prop); - } else { - cvox.Search.speakSync_(); - } -}; - -/** - * Sync the current pane index to ChromeVox. - */ -cvox.Search.syncPaneToIndex = function() { - var pane = cvox.Search.panes[cvox.Search.paneIndex]; - var anchor = pane.querySelector('a'); - if (anchor) { - cvox.ChromeVox.syncToNode(anchor, true); - } else { - cvox.ChromeVox.syncToNode(pane, true); - } - cvox.Search.isPane = true; -}; - -/** - * Get the type of the result such as Knowledge Panel, Weather, etc. - * @param {Element} result Result to be classified. - * @return {cvox.AbstractResult} Type of the result. - */ -cvox.Search.getResultType = function(result) { - for (var i = 0; i < cvox.SearchResults.RESULT_TYPES.length; i++) { - var resultType = new cvox.SearchResults.RESULT_TYPES[i](); - if (resultType.isType(result)) { - return resultType; - } - } - return new cvox.UnknownResult(); -}; - -/** - * Get the page number associated with the url. - * @param {string} url Url of search page. - * @return {number} Page number. - */ -cvox.Search.getPageNumber = function(url) { - var PAGE_ANCHOR_SELECTOR = '#nav .fl'; - var pageAnchors = document.querySelectorAll(PAGE_ANCHOR_SELECTOR); - for (var i = 0; i < pageAnchors.length; i++) { - var pageAnchor = pageAnchors.item(i); - if (pageAnchor.href === url) { - return parseInt(pageAnchor.innerText, 10); - } - } - return NaN; -}; - -/** - * Navigate to the next / previous page. - * @param {boolean} next True for the next page, false for the previous. - */ -cvox.Search.navigatePage = function(next) { - /* NavEnd contains previous / next page links. */ - var NAV_END_CLASS = 'navend'; - var navEnds = document.getElementsByClassName(NAV_END_CLASS); - var navEnd = next ? navEnds[1] : navEnds[0]; - var url = cvox.SearchUtil.extractURL(navEnd); - var navToUrl = function() { - window.location = url; - }; - var prop = { endCallback: navToUrl }; - if (url) { - var pageNumber = cvox.Search.getPageNumber(url); - if (!isNaN(pageNumber)) { - cvox.ChromeVox.tts.speak('Page ' + pageNumber, cvox.QueueMode.FLUSH, - prop); - } else { - cvox.ChromeVox.tts.speak('Unknown page.', cvox.QueueMode.FLUSH, prop); - } - } -}; - -/** - * Navigates to the currently synced pane. - */ -cvox.Search.goToPane = function() { - var pane = cvox.Search.panes[cvox.Search.paneIndex]; - if (pane.className === cvox.Search.SELECTED_PANE_CLASS) { - cvox.ChromeVox.tts.speak('You are already on that page.', - cvox.QueueMode.QUEUE); - return; - } - var anchor = pane.querySelector('a'); - cvox.ChromeVox.tts.speak(anchor.textContent, cvox.QueueMode.QUEUE); - var url = cvox.SearchUtil.extractURL(pane); - if (url) { - window.location = url; - } -}; - -/** - * Follow the link to the current result. - */ -cvox.Search.goToResult = function() { - var result = cvox.Search.results[cvox.Search.index]; - var resultType = cvox.Search.getResultType(result); - var url = resultType.getURL(result); - if (url) { - window.location = url; - } -}; - -/** - * Handle the keyboard. - * @param {Event} evt Keydown event. - * @return {boolean} True if key was handled, false otherwise. - */ -cvox.Search.keyhandler = function(evt) { - var SEARCH_INPUT_ID = 'gbqfq'; - var searchInput = document.getElementById(SEARCH_INPUT_ID); - var result = cvox.Search.results[cvox.Search.index]; - var ret = false; - - /* TODO(peterxiao): Add cvox api call to determine cvox key. */ - if (evt.shiftKey || evt.altKey || evt.ctrlKey) { - return false; - } - - /* Do not handle if search input has focus, or if the search widget - * has focus. - */ - if (document.activeElement !== searchInput && - !cvox.SearchUtil.isSearchWidgetActive()) { - switch (evt.keyCode) { - case cvox.SearchConstants.KeyCode.UP: - /* Add results.length because JS Modulo is silly. */ - cvox.Search.index = cvox.SearchUtil.subOneWrap(cvox.Search.index, - cvox.Search.results.length); - if (cvox.Search.index === cvox.Search.results.length - 1) { - cvox.ChromeVox.earcons.playEarcon(cvox.Earcon.WRAP); - } - cvox.Search.syncToIndex(); - break; - - case cvox.SearchConstants.KeyCode.DOWN: - cvox.Search.index = cvox.SearchUtil.addOneWrap(cvox.Search.index, - cvox.Search.results.length); - if (cvox.Search.index === 0) { - cvox.ChromeVox.earcons.playEarcon(cvox.Earcon.WRAP); - } - cvox.Search.syncToIndex(); - break; - - case cvox.SearchConstants.KeyCode.PAGE_UP: - cvox.Search.navigatePage(false); - break; - - case cvox.SearchConstants.KeyCode.PAGE_DOWN: - cvox.Search.navigatePage(true); - break; - - case cvox.SearchConstants.KeyCode.LEFT: - cvox.Search.paneIndex = cvox.SearchUtil.subOneWrap(cvox.Search.paneIndex, - cvox.Search.panes.length); - cvox.Search.syncPaneToIndex(); - break; - - case cvox.SearchConstants.KeyCode.RIGHT: - cvox.Search.paneIndex = cvox.SearchUtil.addOneWrap(cvox.Search.paneIndex, - cvox.Search.panes.length); - cvox.Search.syncPaneToIndex(); - break; - - case cvox.SearchConstants.KeyCode.ENTER: - if (cvox.Search.isPane) { - cvox.Search.goToPane(); - } else { - cvox.Search.goToResult(); - } - break; - - default: - return false; - } - evt.preventDefault(); - evt.stopPropagation(); - return true; - } - return false; -}; - -/** - * Adds the elements that match the selector to results. - * @param {string} selector Selector of element to add. - */ -cvox.Search.addToResultsBySelector = function(selector) { - var nodes = document.querySelectorAll(selector); - for (var i = 0; i < nodes.length; i++) { - var node = nodes.item(i); - /* Do not add if empty. */ - if (node.innerHTML !== '') { - cvox.Search.results.push(nodes.item(i)); - } - } -}; - -/** - * Populates the panes array. - */ -cvox.Search.populatePanes = function() { - cvox.Search.panes = []; - var PANE_SELECT = '.hdtb_mitem'; - var paneElems = document.querySelectorAll(PANE_SELECT); - for (var i = 0; i < paneElems.length; i++) { - cvox.Search.panes.push(paneElems.item(i)); - } -}; - -/** - * Populates the results with results. - */ -cvox.Search.populateResults = function() { - for (var prop in cvox.Search.selectors) { - cvox.Search.addToResultsBySelector(cvox.Search.selectors[prop]); - } -}; - -/** - * Populates the results with ad results. - */ -cvox.Search.populateAdResults = function() { - cvox.Search.results = []; - var ADS_SELECT = '.ads-ad'; - cvox.Search.addToResultsBySelector(ADS_SELECT); -}; - -/** - * Observes mutations and updates results accordingly. - */ -cvox.Search.observeMutation = function() { - var SEARCH_AREA_SELECT = '#rg_s'; - var target = document.querySelector(SEARCH_AREA_SELECT); - - var observer = new MutationObserver(function(mutations) { - cvox.Search.results = []; - cvox.Search.populateResults(); - }); - - var config = - /** @type MutationObserverInit */ - ({ attributes: true, childList: true, characterData: true }); - observer.observe(target, config); -}; - -/** - * Get the current selected pane's index. - * @return {number} Index of selected pane. - */ -cvox.Search.getSelectedPaneIndex = function() { - var panes = cvox.Search.panes; - for (var i = 0; i < panes.length; i++) { - if (panes[i].className === cvox.Search.SELECTED_PANE_CLASS) { - return i; - } - } - return 0; -}; - -/** - * Get the ancestor of node that is a result. - * @param {Node} node Node. - * @return {Node} Result ancestor. - */ -cvox.Search.getAncestorResult = function(node) { - var curr = node; - while (curr) { - for (var prop in cvox.Search.selectors) { - var selector = cvox.Search.selectors[prop]; - if (curr.webkitMatchesSelector && curr.webkitMatchesSelector(selector)) { - return curr; - } - } - curr = curr.parentNode; - } - return null; -}; - -/** - * Sync to the correct initial node. - */ -cvox.Search.initialSync = function() { - var currNode = cvox.ChromeVox.navigationManager.getCurrentNode(); - var result = cvox.Search.getAncestorResult(currNode); - cvox.Search.index = cvox.Search.results.indexOf(result); - if (cvox.Search.index === -1) { - cvox.Search.index = 0; - } - - if (cvox.Search.results.length > 0) { - cvox.Search.syncToIndex(); - } -}; - -/** - * Initialize Search. - */ -cvox.Search.init = function() { - cvox.Search.index = 0; - - /* Flush out anything that may have been speaking. */ - cvox.ChromeVox.tts.stop(); - - /* Determine the type of search. */ - var SELECTED_CLASS = 'hdtb-msel'; - var selected = document.getElementsByClassName(SELECTED_CLASS)[0]; - if (!selected) { - return; - } - - var selectedHTML = selected.innerHTML; - switch (selectedHTML) { - case 'Web': - case 'News': - cvox.Search.selectors = cvox.Search.webSelectors; - break; - case 'Images': - cvox.Search.selectors = cvox.Search.imageSelectors; - cvox.Search.observeMutation(); - break; - default: - return; - } - - cvox.Search.populateResults(); - cvox.Search.populatePanes(); - cvox.Search.paneIndex = cvox.Search.getSelectedPaneIndex(); - - cvox.Search.initialSync(); - -}; |