| // Copyright 2017 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| interface H5vccAccessibility { |
| // True if the host operating system's "high contrast text" option |
| // has been enabled. |
| readonly attribute boolean highContrastText; |
| void addHighContrastTextListener(H5vccAccessibilityCallback callback); |
| |
| // True if the host operating system's "text to speech" accessibility |
| // option is enabled. |
| readonly attribute boolean textToSpeech; |
| |
| // True if the built-in screen reader is enabled. |
| // Setting it to false disables the built-in screen reader. |
| attribute boolean builtInScreenReader; |
| }; |
| |
| callback H5vccAccessibilityCallback = void(); |
