mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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809 lines
27 KiB
JavaScript
809 lines
27 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* global Components, XPCOMUtils, Utils, PrefCache, States, Roles, Logger */
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/* exported UtteranceGenerator, BrailleGenerator */
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'use strict';
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const {utils: Cu, interfaces: Ci} = Components;
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const INCLUDE_DESC = 0x01;
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const INCLUDE_NAME = 0x02;
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const INCLUDE_VALUE = 0x04;
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const NAME_FROM_SUBTREE_RULE = 0x10;
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const IGNORE_EXPLICIT_NAME = 0x20;
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const OUTPUT_DESC_FIRST = 0;
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const OUTPUT_DESC_LAST = 1;
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Cu.import('resource://gre/modules/XPCOMUtils.jsm');
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XPCOMUtils.defineLazyModuleGetter(this, 'Utils', // jshint ignore:line
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'resource://gre/modules/accessibility/Utils.jsm');
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XPCOMUtils.defineLazyModuleGetter(this, 'PrefCache', // jshint ignore:line
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'resource://gre/modules/accessibility/Utils.jsm');
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XPCOMUtils.defineLazyModuleGetter(this, 'Logger', // jshint ignore:line
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'resource://gre/modules/accessibility/Utils.jsm');
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XPCOMUtils.defineLazyModuleGetter(this, 'Roles', // jshint ignore:line
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'resource://gre/modules/accessibility/Constants.jsm');
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XPCOMUtils.defineLazyModuleGetter(this, 'States', // jshint ignore:line
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'resource://gre/modules/accessibility/Constants.jsm');
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this.EXPORTED_SYMBOLS = ['UtteranceGenerator', 'BrailleGenerator']; // jshint ignore:line
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let OutputGenerator = {
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defaultOutputOrder: OUTPUT_DESC_LAST,
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/**
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* Generates output for a PivotContext.
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* @param {PivotContext} aContext object that generates and caches
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* context information for a given accessible and its relationship with
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* another accessible.
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* @return {Object} An array of speech data. Depending on the utterance order,
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* the data describes the context for an accessible object either
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* starting from the accessible's ancestry or accessible's subtree.
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*/
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genForContext: function genForContext(aContext) {
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let output = [];
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let self = this;
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let addOutput = function addOutput(aAccessible) {
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output.push.apply(output, self.genForObject(aAccessible, aContext));
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};
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let ignoreSubtree = function ignoreSubtree(aAccessible) {
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let roleString = Utils.AccRetrieval.getStringRole(aAccessible.role);
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let nameRule = self.roleRuleMap[roleString] || 0;
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// Ignore subtree if the name is explicit and the role's name rule is the
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// NAME_FROM_SUBTREE_RULE.
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return (((nameRule & INCLUDE_VALUE) && aAccessible.value) ||
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((nameRule & NAME_FROM_SUBTREE_RULE) &&
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(Utils.getAttributes(aAccessible)['explicit-name'] === 'true' &&
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!(nameRule & IGNORE_EXPLICIT_NAME))));
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};
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let contextStart = this._getContextStart(aContext);
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if (this.outputOrder === OUTPUT_DESC_FIRST) {
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contextStart.forEach(addOutput);
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addOutput(aContext.accessible);
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[addOutput(node) for // jshint ignore:line
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(node of aContext.subtreeGenerator(true, ignoreSubtree))]; // jshint ignore:line
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} else {
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[addOutput(node) for // jshint ignore:line
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(node of aContext.subtreeGenerator(false, ignoreSubtree))]; // jshint ignore:line
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addOutput(aContext.accessible);
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contextStart.reverse().forEach(addOutput);
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}
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return output;
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},
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/**
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* Generates output for an object.
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* @param {nsIAccessible} aAccessible accessible object to generate output
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* for.
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* @param {PivotContext} aContext object that generates and caches
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* context information for a given accessible and its relationship with
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* another accessible.
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* @return {Array} A 2 element array of speech data. The first element
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* describes the object and its state. The second element is the object's
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* name. Whether the object's description or it's role is included is
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* determined by {@link roleRuleMap}.
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*/
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genForObject: function genForObject(aAccessible, aContext) {
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let roleString = Utils.AccRetrieval.getStringRole(aAccessible.role);
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let func = this.objectOutputFunctions[
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OutputGenerator._getOutputName(roleString)] ||
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this.objectOutputFunctions.defaultFunc;
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let flags = this.roleRuleMap[roleString] || 0;
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if (aAccessible.childCount === 0) {
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flags |= INCLUDE_NAME;
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}
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return func.apply(this, [aAccessible, roleString,
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Utils.getState(aAccessible), flags, aContext]);
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},
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/**
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* Generates output for an action performed.
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* @param {nsIAccessible} aAccessible accessible object that the action was
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* invoked in.
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* @param {string} aActionName the name of the action, one of the keys in
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* {@link gActionMap}.
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* @return {Array} A one element array with action data.
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*/
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genForAction: function genForAction(aObject, aActionName) {}, // jshint ignore:line
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/**
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* Generates output for an announcement.
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* @param {string} aAnnouncement unlocalized announcement.
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* @return {Array} An announcement speech data to be localized.
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*/
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genForAnnouncement: function genForAnnouncement(aAnnouncement) {}, // jshint ignore:line
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/**
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* Generates output for a tab state change.
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* @param {nsIAccessible} aAccessible accessible object of the tab's attached
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* document.
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* @param {string} aTabState the tab state name, see
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* {@link Presenter.tabStateChanged}.
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* @return {Array} The tab state utterace.
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*/
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genForTabStateChange: function genForTabStateChange(aObject, aTabState) {}, // jshint ignore:line
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/**
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* Generates output for announcing entering and leaving editing mode.
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* @param {aIsEditing} boolean true if we are in editing mode
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* @return {Array} The mode utterance
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*/
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genForEditingMode: function genForEditingMode(aIsEditing) {}, // jshint ignore:line
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_getContextStart: function getContextStart(aContext) {}, // jshint ignore:line
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/**
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* Adds an accessible name and description to the output if available.
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* @param {Array} aOutput Output array.
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* @param {nsIAccessible} aAccessible current accessible object.
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* @param {Number} aFlags output flags.
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*/
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_addName: function _addName(aOutput, aAccessible, aFlags) {
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let name;
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if ((Utils.getAttributes(aAccessible)['explicit-name'] === 'true' &&
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!(aFlags & IGNORE_EXPLICIT_NAME)) || (aFlags & INCLUDE_NAME)) {
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name = aAccessible.name;
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}
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let description = aAccessible.description;
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if (description) {
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// Compare against the calculated name unconditionally, regardless of name rule,
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// so we can make sure we don't speak duplicated descriptions
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let tmpName = name || aAccessible.name;
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if (tmpName && (description !== tmpName)) {
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name = name || '';
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name = this.outputOrder === OUTPUT_DESC_FIRST ?
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description + ' - ' + name :
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name + ' - ' + description;
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}
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}
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if (!name || !name.trim()) {
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return;
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}
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aOutput[this.outputOrder === OUTPUT_DESC_FIRST ? 'push' : 'unshift'](name);
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},
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/**
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* Adds a landmark role to the output if available.
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* @param {Array} aOutput Output array.
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* @param {nsIAccessible} aAccessible current accessible object.
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*/
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_addLandmark: function _addLandmark(aOutput, aAccessible) {
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let landmarkName = Utils.getLandmarkName(aAccessible);
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if (!landmarkName) {
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return;
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}
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aOutput[this.outputOrder === OUTPUT_DESC_FIRST ? 'unshift' : 'push']({
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string: landmarkName
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});
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},
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/**
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* Adds an entry type attribute to the description if available.
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* @param {Array} aOutput Output array.
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* @param {nsIAccessible} aAccessible current accessible object.
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* @param {String} aRoleStr aAccessible's role string.
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*/
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_addType: function _addType(aOutput, aAccessible, aRoleStr) {
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if (aRoleStr !== 'entry') {
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return;
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}
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let typeName = Utils.getAttributes(aAccessible)['text-input-type'];
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// Ignore the the input type="text" case.
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if (!typeName || typeName === 'text') {
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return;
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}
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aOutput.push({string: 'textInputType_' + typeName});
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},
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_addState: function _addState(aOutput, aState) {}, // jshint ignore:line
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_addRole: function _addRole(aOutput, aRoleStr) {}, // jshint ignore:line
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get outputOrder() {
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if (!this._utteranceOrder) {
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this._utteranceOrder = new PrefCache('accessibility.accessfu.utterance');
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}
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return typeof this._utteranceOrder.value === 'number' ?
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this._utteranceOrder.value : this.defaultOutputOrder;
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},
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_getOutputName: function _getOutputName(aName) {
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return aName.replace(' ', '');
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},
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roleRuleMap: {
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'menubar': INCLUDE_DESC,
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'scrollbar': INCLUDE_DESC,
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'grip': INCLUDE_DESC,
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'alert': INCLUDE_DESC | INCLUDE_NAME,
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'menupopup': INCLUDE_DESC,
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'menuitem': INCLUDE_DESC | NAME_FROM_SUBTREE_RULE,
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'tooltip': INCLUDE_DESC | NAME_FROM_SUBTREE_RULE,
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'columnheader': INCLUDE_DESC | NAME_FROM_SUBTREE_RULE,
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'rowheader': INCLUDE_DESC | NAME_FROM_SUBTREE_RULE,
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'column': NAME_FROM_SUBTREE_RULE,
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'row': NAME_FROM_SUBTREE_RULE,
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'cell': INCLUDE_DESC | INCLUDE_NAME,
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'application': INCLUDE_NAME,
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'document': INCLUDE_NAME,
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'grouping': INCLUDE_DESC | INCLUDE_NAME,
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'toolbar': INCLUDE_DESC,
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'table': INCLUDE_DESC | INCLUDE_NAME,
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'link': INCLUDE_DESC | NAME_FROM_SUBTREE_RULE,
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'helpballoon': NAME_FROM_SUBTREE_RULE,
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'list': INCLUDE_DESC | INCLUDE_NAME,
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'listitem': INCLUDE_DESC | NAME_FROM_SUBTREE_RULE,
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'outline': INCLUDE_DESC,
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'outlineitem': INCLUDE_DESC | NAME_FROM_SUBTREE_RULE,
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'pagetab': INCLUDE_DESC | NAME_FROM_SUBTREE_RULE,
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'graphic': INCLUDE_DESC,
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'pushbutton': INCLUDE_DESC | NAME_FROM_SUBTREE_RULE,
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'checkbutton': INCLUDE_DESC | NAME_FROM_SUBTREE_RULE,
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'radiobutton': INCLUDE_DESC | NAME_FROM_SUBTREE_RULE,
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'buttondropdown': NAME_FROM_SUBTREE_RULE,
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'combobox': INCLUDE_DESC,
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'droplist': INCLUDE_DESC,
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'progressbar': INCLUDE_DESC | INCLUDE_VALUE,
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'slider': INCLUDE_DESC | INCLUDE_VALUE,
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'spinbutton': INCLUDE_DESC | INCLUDE_VALUE,
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'diagram': INCLUDE_DESC,
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'animation': INCLUDE_DESC,
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'equation': INCLUDE_DESC,
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'buttonmenu': INCLUDE_DESC | NAME_FROM_SUBTREE_RULE,
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'buttondropdowngrid': NAME_FROM_SUBTREE_RULE,
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'pagetablist': INCLUDE_DESC,
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'canvas': INCLUDE_DESC,
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'check menu item': INCLUDE_DESC | NAME_FROM_SUBTREE_RULE,
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'label': INCLUDE_DESC | NAME_FROM_SUBTREE_RULE,
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'password text': INCLUDE_DESC,
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'popup menu': INCLUDE_DESC,
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'radio menu item': INCLUDE_DESC | NAME_FROM_SUBTREE_RULE,
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'table column header': NAME_FROM_SUBTREE_RULE,
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'table row header': NAME_FROM_SUBTREE_RULE,
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'tear off menu item': NAME_FROM_SUBTREE_RULE,
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'toggle button': INCLUDE_DESC | NAME_FROM_SUBTREE_RULE,
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'parent menuitem': NAME_FROM_SUBTREE_RULE,
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'header': INCLUDE_DESC,
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'footer': INCLUDE_DESC,
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'entry': INCLUDE_DESC | INCLUDE_NAME | INCLUDE_VALUE,
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'caption': INCLUDE_DESC,
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'document frame': INCLUDE_DESC,
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'heading': INCLUDE_DESC,
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'calendar': INCLUDE_DESC | INCLUDE_NAME,
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'combobox list': INCLUDE_DESC,
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'combobox option': INCLUDE_DESC | NAME_FROM_SUBTREE_RULE,
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'listbox option': INCLUDE_DESC | NAME_FROM_SUBTREE_RULE,
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'listbox rich option': NAME_FROM_SUBTREE_RULE,
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'gridcell': NAME_FROM_SUBTREE_RULE,
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'check rich option': NAME_FROM_SUBTREE_RULE,
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'term': NAME_FROM_SUBTREE_RULE,
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'definition': NAME_FROM_SUBTREE_RULE,
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'key': NAME_FROM_SUBTREE_RULE,
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'image map': INCLUDE_DESC,
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'option': INCLUDE_DESC,
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'listbox': INCLUDE_DESC,
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'definitionlist': INCLUDE_DESC | INCLUDE_NAME,
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'dialog': INCLUDE_DESC | INCLUDE_NAME,
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'chrome window': IGNORE_EXPLICIT_NAME,
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'app root': IGNORE_EXPLICIT_NAME },
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objectOutputFunctions: {
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_generateBaseOutput:
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function _generateBaseOutput(aAccessible, aRoleStr, aState, aFlags) {
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let output = [];
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if (aFlags & INCLUDE_DESC) {
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this._addState(output, aState);
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this._addType(output, aAccessible, aRoleStr);
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this._addRole(output, aRoleStr);
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}
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if (aFlags & INCLUDE_VALUE && aAccessible.value.trim()) {
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output[this.outputOrder === OUTPUT_DESC_FIRST ? 'push' : 'unshift'](
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aAccessible.value);
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}
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this._addName(output, aAccessible, aFlags);
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this._addLandmark(output, aAccessible);
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return output;
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},
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label: function label(aAccessible, aRoleStr, aState, aFlags, aContext) {
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if (aContext.isNestedControl ||
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aContext.accessible == Utils.getEmbeddedControl(aAccessible)) {
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// If we are on a nested control, or a nesting label,
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// we don't need the context.
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return [];
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}
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return this.objectOutputFunctions.defaultFunc.apply(this, arguments);
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},
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entry: function entry(aAccessible, aRoleStr, aState, aFlags) {
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let rolestr = aState.contains(States.MULTI_LINE) ? 'textarea' : 'entry';
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return this.objectOutputFunctions.defaultFunc.apply(
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this, [aAccessible, rolestr, aState, aFlags]);
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},
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pagetab: function pagetab(aAccessible, aRoleStr, aState, aFlags) {
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let itemno = {};
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let itemof = {};
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aAccessible.groupPosition({}, itemof, itemno);
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let output = [];
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this._addState(output, aState);
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this._addRole(output, aRoleStr);
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output.push({
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string: 'objItemOfN',
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args: [itemno.value, itemof.value]
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});
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this._addName(output, aAccessible, aFlags);
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this._addLandmark(output, aAccessible);
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return output;
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},
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table: function table(aAccessible, aRoleStr, aState, aFlags) {
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let output = [];
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let table;
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try {
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table = aAccessible.QueryInterface(Ci.nsIAccessibleTable);
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} catch (x) {
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Logger.logException(x);
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return output;
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} finally {
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// Check if it's a layout table, and bail out if true.
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// We don't want to speak any table information for layout tables.
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if (table.isProbablyForLayout()) {
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return output;
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}
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this._addRole(output, aRoleStr);
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output.push.call(output, {
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string: this._getOutputName('tblColumnInfo'),
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count: table.columnCount
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}, {
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string: this._getOutputName('tblRowInfo'),
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count: table.rowCount
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});
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this._addName(output, aAccessible, aFlags);
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this._addLandmark(output, aAccessible);
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return output;
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}
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}
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}
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};
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/**
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* Generates speech utterances from objects, actions and state changes.
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* An utterance is an array of speech data.
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*
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* It should not be assumed that flattening an utterance array would create a
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* gramatically correct sentence. For example, {@link genForObject} might
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* return: ['graphic', 'Welcome to my home page'].
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* Each string element in an utterance should be gramatically correct in itself.
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* Another example from {@link genForObject}: ['list item 2 of 5', 'Alabama'].
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*
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* An utterance is ordered from the least to the most important. Speaking the
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* last string usually makes sense, but speaking the first often won't.
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* For example {@link genForAction} might return ['button', 'clicked'] for a
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* clicked event. Speaking only 'clicked' makes sense. Speaking 'button' does
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* not.
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*/
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this.UtteranceGenerator = { // jshint ignore:line
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__proto__: OutputGenerator,
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gActionMap: {
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jump: 'jumpAction',
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press: 'pressAction',
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check: 'checkAction',
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uncheck: 'uncheckAction',
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select: 'selectAction',
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unselect: 'unselectAction',
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open: 'openAction',
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close: 'closeAction',
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switch: 'switchAction',
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click: 'clickAction',
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collapse: 'collapseAction',
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expand: 'expandAction',
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activate: 'activateAction',
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cycle: 'cycleAction'
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},
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//TODO: May become more verbose in the future.
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genForAction: function genForAction(aObject, aActionName) {
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return [{string: this.gActionMap[aActionName]}];
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},
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genForLiveRegion:
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function genForLiveRegion(aContext, aIsHide, aModifiedText) {
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let utterance = [];
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if (aIsHide) {
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utterance.push({string: 'hidden'});
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}
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return utterance.concat(aModifiedText || this.genForContext(aContext));
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},
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genForAnnouncement: function genForAnnouncement(aAnnouncement) {
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return [{
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string: aAnnouncement
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}];
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},
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genForTabStateChange: function genForTabStateChange(aObject, aTabState) {
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switch (aTabState) {
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case 'newtab':
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return [{string: 'tabNew'}];
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case 'loading':
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return [{string: 'tabLoading'}];
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case 'loaded':
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return [aObject.name, {string: 'tabLoaded'}];
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case 'loadstopped':
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return [{string: 'tabLoadStopped'}];
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case 'reload':
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return [{string: 'tabReload'}];
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default:
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return [];
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}
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},
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genForEditingMode: function genForEditingMode(aIsEditing) {
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return [{string: aIsEditing ? 'editingMode' : 'navigationMode'}];
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},
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objectOutputFunctions: {
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__proto__: OutputGenerator.objectOutputFunctions,
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defaultFunc: function defaultFunc() {
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return this.objectOutputFunctions._generateBaseOutput.apply(
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this, arguments);
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},
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heading: function heading(aAccessible, aRoleStr, aState, aFlags) {
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let level = {};
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aAccessible.groupPosition(level, {}, {});
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let utterance = [{string: 'headingLevel', args: [level.value]}];
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this._addName(utterance, aAccessible, aFlags);
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this._addLandmark(utterance, aAccessible);
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return utterance;
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},
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listitem: function listitem(aAccessible, aRoleStr, aState, aFlags) {
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let itemno = {};
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let itemof = {};
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aAccessible.groupPosition({}, itemof, itemno);
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let utterance = [];
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if (itemno.value == 1) {
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// Start of list
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utterance.push({string: 'listStart'});
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}
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else if (itemno.value == itemof.value) {
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// last item
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utterance.push({string: 'listEnd'});
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}
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this._addName(utterance, aAccessible, aFlags);
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this._addLandmark(utterance, aAccessible);
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return utterance;
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},
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list: function list(aAccessible, aRoleStr, aState, aFlags) {
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return this._getListUtterance
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(aAccessible, aRoleStr, aFlags, aAccessible.childCount);
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},
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definitionlist:
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function definitionlist(aAccessible, aRoleStr, aState, aFlags) {
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return this._getListUtterance
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(aAccessible, aRoleStr, aFlags, aAccessible.childCount / 2);
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},
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application: function application(aAccessible, aRoleStr, aState, aFlags) {
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// Don't utter location of applications, it gets tiring.
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if (aAccessible.name != aAccessible.DOMNode.location) {
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return this.objectOutputFunctions.defaultFunc.apply(this,
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[aAccessible, aRoleStr, aState, aFlags]);
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}
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return [];
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},
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cell: function cell(aAccessible, aRoleStr, aState, aFlags, aContext) {
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let utterance = [];
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let cell = aContext.getCellInfo(aAccessible);
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if (cell) {
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let addCellChanged =
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function addCellChanged(aUtterance, aChanged, aString, aIndex) {
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if (aChanged) {
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aUtterance.push({string: aString, args: [aIndex + 1]});
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}
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};
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let addExtent = function addExtent(aUtterance, aExtent, aString) {
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if (aExtent > 1) {
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aUtterance.push({string: aString, args: [aExtent]});
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}
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};
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let addHeaders = function addHeaders(aUtterance, aHeaders) {
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if (aHeaders.length > 0) {
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aUtterance.push.apply(aUtterance, aHeaders);
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}
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};
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addCellChanged(utterance, cell.columnChanged, 'columnInfo',
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cell.columnIndex);
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addCellChanged(utterance, cell.rowChanged, 'rowInfo', cell.rowIndex);
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addExtent(utterance, cell.columnExtent, 'spansColumns');
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addExtent(utterance, cell.rowExtent, 'spansRows');
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addHeaders(utterance, cell.columnHeaders);
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addHeaders(utterance, cell.rowHeaders);
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}
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this._addName(utterance, aAccessible, aFlags);
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this._addLandmark(utterance, aAccessible);
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return utterance;
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},
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columnheader: function columnheader() {
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return this.objectOutputFunctions.cell.apply(this, arguments);
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},
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rowheader: function rowheader() {
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return this.objectOutputFunctions.cell.apply(this, arguments);
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},
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statictext: function statictext(aAccessible) {
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if (Utils.isListItemDecorator(aAccessible, true)) {
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return [];
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}
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return this.objectOutputFunctions.defaultFunc.apply(this, arguments);
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}
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},
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_getContextStart: function _getContextStart(aContext) {
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return aContext.newAncestry;
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},
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_addRole: function _addRole(aOutput, aRoleStr) {
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aOutput.push({string: this._getOutputName(aRoleStr)});
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},
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_addState: function _addState(aOutput, aState) {
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if (aState.contains(States.UNAVAILABLE)) {
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aOutput.push({string: 'stateUnavailable'});
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}
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if (aState.contains(States.READONLY)) {
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aOutput.push({string: 'stateReadonly'});
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}
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// Don't utter this in Jelly Bean, we let TalkBack do it for us there.
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// This is because we expose the checked information on the node itself.
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// XXX: this means the checked state is always appended to the end,
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// regardless of the utterance ordering preference.
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if ((Utils.AndroidSdkVersion < 16 || Utils.MozBuildApp === 'browser') &&
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aState.contains(States.CHECKABLE)) {
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let statetr = aState.contains(States.CHECKED) ?
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'stateChecked' : 'stateNotChecked';
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aOutput.push({string: statetr});
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}
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if (aState.contains(States.PRESSED)) {
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aOutput.push({string: 'statePressed'});
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}
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if (aState.contains(States.EXPANDABLE)) {
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let statetr = aState.contains(States.EXPANDED) ?
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'stateExpanded' : 'stateCollapsed';
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aOutput.push({string: statetr});
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}
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if (aState.contains(States.REQUIRED)) {
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aOutput.push({string: 'stateRequired'});
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}
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if (aState.contains(States.TRAVERSED)) {
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aOutput.push({string: 'stateTraversed'});
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}
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if (aState.contains(States.HASPOPUP)) {
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aOutput.push({string: 'stateHasPopup'});
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}
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if (aState.contains(States.SELECTED)) {
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aOutput.push({string: 'stateSelected'});
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}
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},
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_getListUtterance:
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function _getListUtterance(aAccessible, aRoleStr, aFlags, aItemCount) {
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let utterance = [];
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this._addRole(utterance, aRoleStr);
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utterance.push({
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string: this._getOutputName('listItemsCount'),
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count: aItemCount
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});
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this._addName(utterance, aAccessible, aFlags);
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this._addLandmark(utterance, aAccessible);
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return utterance;
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}
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};
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this.BrailleGenerator = { // jshint ignore:line
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__proto__: OutputGenerator,
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genForContext: function genForContext(aContext) {
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let output = OutputGenerator.genForContext.apply(this, arguments);
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let acc = aContext.accessible;
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// add the static text indicating a list item; do this for both listitems or
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// direct first children of listitems, because these are both common
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// browsing scenarios
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let addListitemIndicator = function addListitemIndicator(indicator = '*') {
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output.unshift(indicator);
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};
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if (acc.indexInParent === 1 &&
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acc.parent.role == Roles.LISTITEM &&
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acc.previousSibling.role == Roles.STATICTEXT) {
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if (acc.parent.parent && acc.parent.parent.DOMNode &&
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acc.parent.parent.DOMNode.nodeName == 'UL') {
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addListitemIndicator();
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} else {
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addListitemIndicator(acc.previousSibling.name.trim());
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}
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} else if (acc.role == Roles.LISTITEM && acc.firstChild &&
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acc.firstChild.role == Roles.STATICTEXT) {
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if (acc.parent.DOMNode.nodeName == 'UL') {
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addListitemIndicator();
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} else {
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addListitemIndicator(acc.firstChild.name.trim());
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}
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}
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return output;
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},
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objectOutputFunctions: {
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__proto__: OutputGenerator.objectOutputFunctions,
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defaultFunc: function defaultFunc() {
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return this.objectOutputFunctions._generateBaseOutput.apply(
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this, arguments);
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},
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listitem: function listitem(aAccessible, aRoleStr, aState, aFlags) {
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let braille = [];
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this._addName(braille, aAccessible, aFlags);
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this._addLandmark(braille, aAccessible);
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return braille;
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},
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cell: function cell(aAccessible, aRoleStr, aState, aFlags, aContext) {
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let braille = [];
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let cell = aContext.getCellInfo(aAccessible);
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if (cell) {
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let addHeaders = function addHeaders(aBraille, aHeaders) {
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if (aHeaders.length > 0) {
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aBraille.push.apply(aBraille, aHeaders);
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}
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};
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braille.push({
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string: this._getOutputName('cellInfo'),
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args: [cell.columnIndex + 1, cell.rowIndex + 1]
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});
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addHeaders(braille, cell.columnHeaders);
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addHeaders(braille, cell.rowHeaders);
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}
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this._addName(braille, aAccessible, aFlags);
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this._addLandmark(braille, aAccessible);
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return braille;
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},
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columnheader: function columnheader() {
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return this.objectOutputFunctions.cell.apply(this, arguments);
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},
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rowheader: function rowheader() {
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return this.objectOutputFunctions.cell.apply(this, arguments);
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},
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statictext: function statictext(aAccessible) {
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// Since we customize the list bullet's output, we add the static
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// text from the first node in each listitem, so skip it here.
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if (Utils.isListItemDecorator(aAccessible)) {
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return [];
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}
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return this.objectOutputFunctions._useStateNotRole.apply(this, arguments);
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},
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_useStateNotRole:
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function _useStateNotRole(aAccessible, aRoleStr, aState, aFlags) {
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let braille = [];
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this._addState(braille, aState, aAccessible.role);
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this._addName(braille, aAccessible, aFlags);
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this._addLandmark(braille, aAccessible);
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return braille;
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},
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checkbutton: function checkbutton() {
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return this.objectOutputFunctions._useStateNotRole.apply(this, arguments);
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},
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radiobutton: function radiobutton() {
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return this.objectOutputFunctions._useStateNotRole.apply(this, arguments);
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},
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togglebutton: function togglebutton() {
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return this.objectOutputFunctions._useStateNotRole.apply(this, arguments);
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}
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},
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_getContextStart: function _getContextStart(aContext) {
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if (aContext.accessible.parent.role == Roles.LINK) {
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return [aContext.accessible.parent];
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}
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return [];
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},
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_getOutputName: function _getOutputName(aName) {
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return OutputGenerator._getOutputName(aName) + 'Abbr';
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},
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_addRole: function _addRole(aBraille, aRoleStr) {
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aBraille.push({string: this._getOutputName(aRoleStr)});
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},
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_addState: function _addState(aBraille, aState, aRole) {
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if (aState.contains(States.CHECKABLE)) {
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aBraille.push({
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string: aState.contains(States.CHECKED) ?
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this._getOutputName('stateChecked') :
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this._getOutputName('stateUnchecked')
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});
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}
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if (aRole === Roles.TOGGLE_BUTTON) {
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aBraille.push({
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string: aState.contains(States.PRESSED) ?
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this._getOutputName('statePressed') :
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this._getOutputName('stateUnpressed')
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});
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}
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}
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};
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