yumoqing
1291f7fee3
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.
14 lines
624 B
Markdown
14 lines
624 B
Markdown
# KeyPress
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**Widget Functionality**: Listens for keyboard key events. When the user presses any key, it clears the current content and displays the name of the pressed key.
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**Type**: Container widget
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**Parent Widget**: VBox
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## Initialization Parameters
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- No special initialization parameters; inherits general parameters from `bricks.VBox` (such as layout-related options).
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## Main Events
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- `keydown`: Binds a global keyboard press event, triggering the `key_handler` method to process key logic.
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This event retrieves the `event.key` value and dynamically creates a text widget to display the key information. |