fix(amazonq): add custom modal dropdown for model selection #6120
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manodnyab
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Nov 21, 2025
.../jetbrains-community/src/software/aws/toolkits/jetbrains/services/amazonq/webview/Browser.kt
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laileni-aws
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Can you add user experience demo to this PR? |
manodnyab
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Replaces native select element with a custom modal dropdown to fix visibility issues where the dropdown menu was getting cut off at the bottom. Implementation includes: - Modal overlay to ensure proper display above chat UI - Dynamic font sizing based on model name length - Stable positioning to prevent shifting when changing selections Note: Temporary workaround that could be refined with future iterations.
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laileni-aws
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Types of changes
Description
The model selection dropdown in Amazon Q chat was getting cut off at the bottom, showing only 2-3 out of 4 available models. This was caused by overflow clipping in the JCEF webview environment.
Solution:
Implemented a custom modal dropdown that replaces the native
<select>element specifically for model selection. The modal overlay approach ensures the dropdown appears above all other UI elements withoutz-index conflicts.
Key features:
Before: Dropdown cut off, showing only 2-3 options
After: All 4 model options visible in centered modal
Note: This is a temporary workaround. Future improvements could include migrating to a proper mynah-ui component or refining the positioning logic.
Demo :
Screen.Recording.2025-11-21.at.2.48.43.PM.mov
Screen.Recording.2025-12-01.at.7.59.08.AM.mov
Checklist
customer-facing in the IDE. (Will add)
License
I confirm that my contribution is made under the terms of the Apache 2.0 license.
CHANGELOG entry to add:
Fixed