Troubleshooting

This page covers common issues encountered while integrating and using SweetEditor.

Decorations Keep Duplicating While Scrolling

Cause:

a viewport-scoped decoration provider uses DecorationApplyMode.Merge

Fix:

use DecorationApplyMode.ReplaceRange for line-based viewport recomputation

Completion Does Not Appear

Checklist:

a CompletionProvider is registered with addCompletionProvider()
completion is manually triggered or a trigger character is supported
the controller is not currently in a conflicting state such as linked editing

Inline Suggestion Does Not Show

Checklist:

call controller.inlineSuggestions().show(...)
use a valid 0-based line and column
ensure the document is loaded before showing the suggestion

Theme Changes Do Not Apply

Checklist:

call controller.applyTheme(theme)
use rememberEditorAppearance() or rememberEditorTheme() consistently
keep behavior changes in EditorSettings, not in theme content

Desktop Mouse Wheel Feels Wrong

Note:

Desktop wheel normalization is handled at the platform layer

Editor Looks Different From Expected Theme

Checklist:

verify controller.applyTheme(theme) is called after the controller is ready
verify the expected themeContent keys are supported by the parser
verify behavior flags are configured in EditorSettings rather than theme content
verify custom textStyles names match the style aliases used by your highlighting data