Files
vscode/.github
Osvaldo Ortega b48d6739c4 Agents web: Mobile host picker dropdown improvements (#312934)
* feat: replace host picker context menu with mobile-native bottom sheet on phone layout

Agent-Logs-Url: https://github.com/microsoft/vscode/sessions/c0ced124-328e-43c3-a95c-34c56f55a84d

Co-authored-by: osortega <48293249+osortega@users.noreply.github.com>

* fix: guard bottom sheet dismiss against double-invocation and stop event propagation from sheet

Agent-Logs-Url: https://github.com/microsoft/vscode/sessions/c0ced124-328e-43c3-a95c-34c56f55a84d

Co-authored-by: osortega <48293249+osortega@users.noreply.github.com>

* refactor: extract mobile host picker into MobileHostFilterActionViewItem

Move the bottom sheet UI from an inline phone-layout branch in the
desktop HostFilterActionViewItem into a proper mobile subclass in
browser/parts/mobile/, following the established mobile architecture:

- Create MobileHostFilterActionViewItem extending the desktop class,
  overriding _showMenu() to show a bottom sheet instead of a context menu
- Remove IsPhoneLayoutContext branching from the desktop component
- Move bottom sheet CSS from hostFilter.css to mobileChatShell.css
- Update hostFilter.contribution.ts to instantiate the mobile variant
  for the MobileTitleBarCenter menu registration
- Add Mobile Component Architecture rules to sessions.instructions.md

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix: replace bottom sheet with dropdown anchored below trigger

The bottom sheet slid up from the bottom of the screen, far from the
picker trigger at the top, and had a transparent background. Replace
with a dropdown panel that:

- Anchors directly below the trigger element
- Has a solid background with border and shadow
- Animates in/out with a subtle fade + slide from above
- Uses 44px min-height items for touch targets
- Transparent backdrop for dismiss-on-tap without visual overlay

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix: improve mobile host picker dropdown design

- Use agentsChatInput background color to match the chat input
- Add font-weight: normal to prevent bold text in items
- Add Gesture.addTarget + TouchEventType.Tap on each item button
  so taps register on iOS/touch devices (CLICK alone is unreliable)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* refactor: move host picker dropdown CSS to own component file

- Create media/hostPickerDropdown.css in mobile parts folder
- Move all host picker styles from mobileChatShell.css to dedicated component file
- Add CSS import in mobileHostFilterActionViewItem.ts
- Document CSS organization pattern in sessions.instructions.md

This follows the same pattern as regular VS Code parts where each component
owns its CSS in a media/ subfolder. Keeps mobileChatShell.css focused on
shell-level phone layout styles only.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix: use defined CSS theme variables for host picker dropdown

Replace undefined fallback variables with proper agentsChatInput theme tokens:
- background: var(--vscode-agentsChatInput-background)
- foreground: var(--vscode-agentsChatInput-foreground)
- border: var(--vscode-agentsChatInput-border)

These variables are registered in src/vs/sessions/common/theme.ts and
properly available in all themes.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix: use globally available CSS theme variables for host picker

Replace agentsChatInput variables (only available in .agent-sessions-workbench scope)
with globally available input and foreground variables since the backdrop is
rendered directly on body, outside the workbench scope.

- background: var(--vscode-input-background)
- foreground: var(--vscode-foreground)
- border: var(--vscode-input-border)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix: use inline styles from theme service for host picker

CSS variables aren't available in the body scope where the dropdown is rendered.
Instead, fetch theme colors via IThemeService and apply them as inline styles:

- Get theme colors at dropdown creation time
- Set backgroundColor, borderColor, foregroundColor via style attribute
- Apply hoverBackgroundColor and linkColor via event listeners
- Remove all CSS variable references

This ensures colors work in vscode.dev and all environments where CSS variables
may not be injected.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix: remove unused focusBorderColor variable

The focus border styling is handled by the CSS :focus-visible rule,
so the TypeScript variable is not needed.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix: render dropdown inside workbench container for CSS variables

The dropdown was appended to document.body, which is outside the
.monaco-workbench element where --vscode-* CSS custom properties
are defined. This caused all theme variables to be undefined.

Fix: query for the .monaco-workbench container and append the
backdrop there instead. This restores CSS variable inheritance
and moves all color declarations back to the CSS file where
they belong.

Also reverts the IThemeService inline-styles approach — colors
are now purely in hostPickerDropdown.css using standard CSS
variables.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix: center host picker dropdown and remove status text

1. Center the dropdown horizontally on screen using left: 50% +
   translateX(-50%) instead of anchoring to the trigger's left edge.
2. Remove the 'connecting…' / 'disconnected' status text from dropdown
   items — the titlebar connection icon already conveys this info, and
   the status text was causing the dropdown to extend beyond screen.
3. Clean up unused AgentHostFilterConnectionStatus import and status CSS.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix: include translateX(-50%) in dropdown animation keyframes

The entrance/exit animations were overriding the centering transform
during playback, causing the dropdown to appear right-aligned then
jump to center when the animation ended.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix: remove stray closing brace in mobileChatShell.css

Leftover from extracting host picker CSS into its own file.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix: address PR review comments

1. Fix dismiss race condition: guard the timeout callback so it only
   clears the dropdown if it still owns the current store, and register
   the timeout for disposal when the dropdown is reopened early.

2. Use correct ARIA pattern: switch from listbox/option to menu/menuitemradio
   which better matches the single-select interaction pattern.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-04-28 00:24:51 +00:00
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