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bricks/dist/docs/en/webspeech.md
yumoqing 1291f7fee3 fix: UiCode build_options uses valueField/textField fallback to 'value'/'text' 
When valueField/textField are not explicitly set in opts, the auto-select
logic (line 1140) and nullable empty-option creation (lines 1144-1145) used
data[0][undefined] which returned undefined, causing:
- Single-option selects to show blank (auto-select failed)
- nullable empty options to have undefined keys

Now extracts vf/tf local variables with ||'value'/||'text' fallback at the
top of build_options(), used consistently throughout.
2026-05-29 23:03:52 +08:00

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WebTTS

Widget Functionality: Implements browser-based Text-to-Speech (TTS) functionality, supporting multiple languages, pitch, and speech rate settings, along with event callbacks during the speech synthesis process.
Type: Container widget
Parent Widget: bricks.VBox

Initialization Parameters

  • opts: Inherits initialization parameters from bricks.VBox, used to configure layout and basic properties.
    • Supports all common configuration options of a VBox container (such as styles, child widgets, etc.).

Main Events

No custom events are triggered; however, the following speech synthesis events are internally used for status monitoring:

  • onstart: Logs a message when speech synthesis begins.
  • onend: Logs a message when speech synthesis ends.
  • onerror: Outputs error information if speech synthesis fails.

Note: This widget performs speech playback by calling the speak(text) method and does not rely on external event binding mechanisms to trigger UI changes.

WebASR

Widget Functionality: Implements browser-based Speech Recognition functionality, converting user's spoken input into text content and dispatching recognition results via events.
Type: Container widget
Parent Widget: bricks.VBox

Initialization Parameters

  • opts: Inherits initialization parameters from bricks.VBox, used to configure layout and basic properties.
    • Supports all common configuration options of a VBox container.

Main Events

  • asr_result: Triggered when speech recognition successfully returns a result, carrying the recognized text content.
    • Data format: { content: string }
    • Example: { content: "Hello World" }

Note: Requires browser support for the SpeechRecognition API; otherwise, a "not supported" message will be logged.