feat(News): refactor news service and add sentiment tracking
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@@ -0,0 +1,216 @@
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.getAccessibilityTree = getAccessibilityTree;
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/**
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* Copyright 2018 Google Inc. All rights reserved.
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* Modifications copyright (c) Microsoft Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the 'License');
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an 'AS IS' BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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async function getAccessibilityTree(session, needle) {
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const objectId = needle ? needle._objectId : undefined;
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const {
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tree
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} = await session.send('Accessibility.getFullAXTree', {
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objectId
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});
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const axNode = new FFAXNode(tree);
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return {
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tree: axNode,
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needle: needle ? axNode._findNeedle() : null
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};
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}
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const FFRoleToARIARole = new Map(Object.entries({
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'pushbutton': 'button',
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'checkbutton': 'checkbox',
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'editcombobox': 'combobox',
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'content deletion': 'deletion',
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'footnote': 'doc-footnote',
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'non-native document': 'document',
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'grouping': 'group',
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'graphic': 'img',
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'content insertion': 'insertion',
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'animation': 'marquee',
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'flat equation': 'math',
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'menupopup': 'menu',
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'check menu item': 'menuitemcheckbox',
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'radio menu item': 'menuitemradio',
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'listbox option': 'option',
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'radiobutton': 'radio',
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'statusbar': 'status',
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'pagetab': 'tab',
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'pagetablist': 'tablist',
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'propertypage': 'tabpanel',
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'entry': 'textbox',
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'outline': 'tree',
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'tree table': 'treegrid',
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'outlineitem': 'treeitem'
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}));
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class FFAXNode {
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constructor(payload) {
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this._children = void 0;
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this._payload = void 0;
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this._editable = void 0;
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this._richlyEditable = void 0;
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this._focusable = void 0;
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this._expanded = void 0;
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this._name = void 0;
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this._role = void 0;
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this._cachedHasFocusableChild = void 0;
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this._payload = payload;
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this._children = (payload.children || []).map(x => new FFAXNode(x));
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this._editable = !!payload.editable;
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this._richlyEditable = this._editable && payload.tag !== 'textarea' && payload.tag !== 'input';
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this._focusable = !!payload.focusable;
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this._expanded = !!payload.expanded;
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this._name = this._payload.name;
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this._role = this._payload.role;
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}
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_isPlainTextField() {
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if (this._richlyEditable) return false;
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if (this._editable) return true;
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return this._role === 'entry';
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}
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_isTextOnlyObject() {
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const role = this._role;
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return role === 'text leaf' || role === 'text' || role === 'statictext';
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}
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_hasFocusableChild() {
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if (this._cachedHasFocusableChild === undefined) {
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this._cachedHasFocusableChild = false;
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for (const child of this._children) {
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if (child._focusable || child._hasFocusableChild()) {
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this._cachedHasFocusableChild = true;
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break;
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}
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}
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}
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return this._cachedHasFocusableChild;
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}
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children() {
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return this._children;
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}
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_findNeedle() {
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if (this._payload.foundObject) return this;
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for (const child of this._children) {
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const found = child._findNeedle();
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if (found) return found;
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}
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return null;
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}
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isLeafNode() {
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if (!this._children.length) return true;
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// These types of objects may have children that we use as internal
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// implementation details, but we want to expose them as leaves to platform
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// accessibility APIs because screen readers might be confused if they find
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// any children.
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if (this._isPlainTextField() || this._isTextOnlyObject()) return true;
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// Roles whose children are only presentational according to the ARIA and
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// HTML5 Specs should be hidden from screen readers.
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// (Note that whilst ARIA buttons can have only presentational children, HTML5
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// buttons are allowed to have content.)
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switch (this._role) {
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case 'graphic':
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case 'scrollbar':
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case 'slider':
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case 'separator':
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case 'progressbar':
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return true;
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default:
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break;
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}
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// Here and below: Android heuristics
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if (this._hasFocusableChild()) return false;
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if (this._focusable && this._role !== 'document' && this._name) return true;
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if (this._role === 'heading' && this._name) return true;
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return false;
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}
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isControl() {
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switch (this._role) {
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case 'checkbutton':
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case 'check menu item':
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case 'check rich option':
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case 'combobox':
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case 'combobox option':
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case 'color chooser':
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case 'listbox':
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case 'listbox option':
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case 'listbox rich option':
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case 'popup menu':
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case 'menupopup':
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case 'menuitem':
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case 'menubar':
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case 'button':
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case 'pushbutton':
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case 'radiobutton':
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case 'radio menuitem':
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case 'scrollbar':
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case 'slider':
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case 'spinbutton':
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case 'switch':
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case 'pagetab':
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case 'entry':
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case 'tree table':
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return true;
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default:
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return false;
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}
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}
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isInteresting(insideControl) {
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if (this._focusable || this._richlyEditable) return true;
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// If it's not focusable but has a control role, then it's interesting.
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if (this.isControl()) return true;
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// A non focusable child of a control is not interesting
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if (insideControl) return false;
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return this.isLeafNode() && !!this._name.trim();
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}
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serialize() {
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const node = {
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role: FFRoleToARIARole.get(this._role) || this._role,
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name: this._name || ''
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};
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const userStringProperties = ['name', 'description', 'roledescription', 'valuetext', 'keyshortcuts'];
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for (const userStringProperty of userStringProperties) {
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if (!(userStringProperty in this._payload)) continue;
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node[userStringProperty] = this._payload[userStringProperty];
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}
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const booleanProperties = ['disabled', 'expanded', 'focused', 'modal', 'multiline', 'multiselectable', 'readonly', 'required', 'selected'];
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for (const booleanProperty of booleanProperties) {
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if (this._role === 'document' && booleanProperty === 'focused') continue; // document focusing is strange
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const value = this._payload[booleanProperty];
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if (!value) continue;
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node[booleanProperty] = value;
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}
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const numericalProperties = ['level'];
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for (const numericalProperty of numericalProperties) {
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if (!(numericalProperty in this._payload)) continue;
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node[numericalProperty] = this._payload[numericalProperty];
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}
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const tokenProperties = ['autocomplete', 'haspopup', 'orientation'];
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for (const tokenProperty of tokenProperties) {
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const value = this._payload[tokenProperty];
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if (!value || value === 'false') continue;
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node[tokenProperty] = value;
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}
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const axNode = node;
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axNode.valueString = this._payload.value;
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if ('checked' in this._payload) axNode.checked = this._payload.checked === true ? 'checked' : this._payload.checked === 'mixed' ? 'mixed' : 'unchecked';
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if ('pressed' in this._payload) axNode.pressed = this._payload.pressed === true ? 'pressed' : 'released';
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if ('invalid' in this._payload) axNode.invalid = this._payload.invalid === true ? 'true' : 'false';
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return axNode;
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}
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}
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