fix(chat): command panel crash fix and grid-native command rendering by Tryanks · Pull Request #289 · Tryanks/tcode

Tryanks · 2026-08-26T08:46:03Z

Two follow-ups to #287 (shipped in v0.1.45).

Crash fix

Expanding a command execution crashed the app: the adaptive-width handler called list_state.remeasure_items from inside on_prepaint, while List still holds its state borrow — a guaranteed borrow panic. The resize is now deferred past the frame with cx.defer_in.

Rendering direction correction

#287 rendered the command line as a separate StyledText element (❯ prompt, muted background) outside the terminal cell system. That direction is rejected; the command now renders inside the same GridEmulator → paint_terminal_grid pipeline as the output:

bash syntax highlighting (existing syntect infra) is converted to truecolor SGR sequences and fed into the command emulator — colors reach the cells the way a terminal would
every fed color, highlighted or default, is blended 30% toward the theme background, so the entire command line is uniformly lighter than the output below — the tone difference is what marks it as input
the command snapshot rebuilds on theme change since faded colors are baked into cells
adaptive columns and LF→CRLF output normalization from fix(chat): make command panels readable #287 are unchanged

Tests

command_highlight_is_faded_truecolor_in_terminal_cells — a bash keyword reaches the cells as AnsiColor::Spec with exactly the faded RGB
command_is_clamped_to_four_rows re-adapted to snapshot cells (SGR bytes are zero-width in column math)
all fix(chat): make command panels readable #287 regression tests (bare LF, split CRLF, adaptive wrap) unchanged and passing

fmt / clippy -D warnings / full workspace tests green locally.

remeasure_items from inside on_prepaint panics because List still holds its state borrow during prepaint; defer the resize past the frame.

…hlighting Rejected direction from #287: the command line was a separate StyledText element outside the terminal cell system. Move it back into the GridEmulator/paint_terminal_grid pipeline: - bash syntax highlighting is converted to truecolor SGR sequences and fed into the command emulator, so colors live in the cells natively - every fed color (highlight and default foreground) is blended 30% toward the theme background, so the whole command line reads lighter than the output below it — that tone difference marks it as input - the command snapshot rebuilds when the theme changes, since the faded colors are baked into the cells - adaptive columns and the LF normalization from #287 are unchanged

Tryanks · 2026-08-26T08:46:03Z

Two follow-ups to #287 (shipped in v0.1.45).

Crash fix

Expanding a command execution crashed the app: the adaptive-width handler called list_state.remeasure_items from inside on_prepaint, while List still holds its state borrow — a guaranteed borrow panic. The resize is now deferred past the frame with cx.defer_in.

Rendering direction correction

#287 rendered the command line as a separate StyledText element (❯ prompt, muted background) outside the terminal cell system. That direction is rejected; the command now renders inside the same GridEmulator → paint_terminal_grid pipeline as the output:

bash syntax highlighting (existing syntect infra) is converted to truecolor SGR sequences and fed into the command emulator — colors reach the cells the way a terminal would
every fed color, highlighted or default, is blended 30% toward the theme background, so the entire command line is uniformly lighter than the output below — the tone difference is what marks it as input
the command snapshot rebuilds on theme change since faded colors are baked into cells
adaptive columns and LF→CRLF output normalization from fix(chat): make command panels readable #287 are unchanged

Tests

command_highlight_is_faded_truecolor_in_terminal_cells — a bash keyword reaches the cells as AnsiColor::Spec with exactly the faded RGB
command_is_clamped_to_four_rows re-adapted to snapshot cells (SGR bytes are zero-width in column math)
all fix(chat): make command panels readable #287 regression tests (bare LF, split CRLF, adaptive wrap) unchanged and passing

fmt / clippy -D warnings / full workspace tests green locally.

remeasure_items from inside on_prepaint panics because List still holds its state borrow during prepaint; defer the resize past the frame.

…hlighting Rejected direction from #287: the command line was a separate StyledText element outside the terminal cell system. Move it back into the GridEmulator/paint_terminal_grid pipeline: - bash syntax highlighting is converted to truecolor SGR sequences and fed into the command emulator, so colors live in the cells natively - every fed color (highlight and default foreground) is blended 30% toward the theme background, so the whole command line reads lighter than the output below it — that tone difference marks it as input - the command snapshot rebuilds when the theme changes, since the faded colors are baked into the cells - adaptive columns and the LF normalization from #287 are unchanged

Tryanks · 2026-08-26T08:46:03Z

Two follow-ups to #287 (shipped in v0.1.45).

Crash fix

Expanding a command execution crashed the app: the adaptive-width handler called list_state.remeasure_items from inside on_prepaint, while List still holds its state borrow — a guaranteed borrow panic. The resize is now deferred past the frame with cx.defer_in.

Rendering direction correction

#287 rendered the command line as a separate StyledText element (❯ prompt, muted background) outside the terminal cell system. That direction is rejected; the command now renders inside the same GridEmulator → paint_terminal_grid pipeline as the output:

bash syntax highlighting (existing syntect infra) is converted to truecolor SGR sequences and fed into the command emulator — colors reach the cells the way a terminal would
every fed color, highlighted or default, is blended 30% toward the theme background, so the entire command line is uniformly lighter than the output below — the tone difference is what marks it as input
the command snapshot rebuilds on theme change since faded colors are baked into cells
adaptive columns and LF→CRLF output normalization from fix(chat): make command panels readable #287 are unchanged

Tests

command_highlight_is_faded_truecolor_in_terminal_cells — a bash keyword reaches the cells as AnsiColor::Spec with exactly the faded RGB
command_is_clamped_to_four_rows re-adapted to snapshot cells (SGR bytes are zero-width in column math)
all fix(chat): make command panels readable #287 regression tests (bare LF, split CRLF, adaptive wrap) unchanged and passing

fmt / clippy -D warnings / full workspace tests green locally.

remeasure_items from inside on_prepaint panics because List still holds its state borrow during prepaint; defer the resize past the frame.

…hlighting Rejected direction from #287: the command line was a separate StyledText element outside the terminal cell system. Move it back into the GridEmulator/paint_terminal_grid pipeline: - bash syntax highlighting is converted to truecolor SGR sequences and fed into the command emulator, so colors live in the cells natively - every fed color (highlight and default foreground) is blended 30% toward the theme background, so the whole command line reads lighter than the output below it — that tone difference marks it as input - the command snapshot rebuilds when the theme changes, since the faded colors are baked into the cells - adaptive columns and the LF normalization from #287 are unchanged

Tryanks · 2026-08-26T08:46:03Z

Two follow-ups to #287 (shipped in v0.1.45).

Crash fix

Expanding a command execution crashed the app: the adaptive-width handler called list_state.remeasure_items from inside on_prepaint, while List still holds its state borrow — a guaranteed borrow panic. The resize is now deferred past the frame with cx.defer_in.

Rendering direction correction

#287 rendered the command line as a separate StyledText element (❯ prompt, muted background) outside the terminal cell system. That direction is rejected; the command now renders inside the same GridEmulator → paint_terminal_grid pipeline as the output:

bash syntax highlighting (existing syntect infra) is converted to truecolor SGR sequences and fed into the command emulator — colors reach the cells the way a terminal would
every fed color, highlighted or default, is blended 30% toward the theme background, so the entire command line is uniformly lighter than the output below — the tone difference is what marks it as input
the command snapshot rebuilds on theme change since faded colors are baked into cells
adaptive columns and LF→CRLF output normalization from fix(chat): make command panels readable #287 are unchanged

Tests

command_highlight_is_faded_truecolor_in_terminal_cells — a bash keyword reaches the cells as AnsiColor::Spec with exactly the faded RGB
command_is_clamped_to_four_rows re-adapted to snapshot cells (SGR bytes are zero-width in column math)
all fix(chat): make command panels readable #287 regression tests (bare LF, split CRLF, adaptive wrap) unchanged and passing

fmt / clippy -D warnings / full workspace tests green locally.

remeasure_items from inside on_prepaint panics because List still holds its state borrow during prepaint; defer the resize past the frame.

…hlighting Rejected direction from #287: the command line was a separate StyledText element outside the terminal cell system. Move it back into the GridEmulator/paint_terminal_grid pipeline: - bash syntax highlighting is converted to truecolor SGR sequences and fed into the command emulator, so colors live in the cells natively - every fed color (highlight and default foreground) is blended 30% toward the theme background, so the whole command line reads lighter than the output below it — that tone difference marks it as input - the command snapshot rebuilds when the theme changes, since the faded colors are baked into the cells - adaptive columns and the LF normalization from #287 are unchanged

Tryanks · 2026-08-26T08:46:03Z

Two follow-ups to #287 (shipped in v0.1.45).

Crash fix

Expanding a command execution crashed the app: the adaptive-width handler called list_state.remeasure_items from inside on_prepaint, while List still holds its state borrow — a guaranteed borrow panic. The resize is now deferred past the frame with cx.defer_in.

Rendering direction correction

#287 rendered the command line as a separate StyledText element (❯ prompt, muted background) outside the terminal cell system. That direction is rejected; the command now renders inside the same GridEmulator → paint_terminal_grid pipeline as the output:

bash syntax highlighting (existing syntect infra) is converted to truecolor SGR sequences and fed into the command emulator — colors reach the cells the way a terminal would
every fed color, highlighted or default, is blended 30% toward the theme background, so the entire command line is uniformly lighter than the output below — the tone difference is what marks it as input
the command snapshot rebuilds on theme change since faded colors are baked into cells
adaptive columns and LF→CRLF output normalization from fix(chat): make command panels readable #287 are unchanged

Tests

command_highlight_is_faded_truecolor_in_terminal_cells — a bash keyword reaches the cells as AnsiColor::Spec with exactly the faded RGB
command_is_clamped_to_four_rows re-adapted to snapshot cells (SGR bytes are zero-width in column math)
all fix(chat): make command panels readable #287 regression tests (bare LF, split CRLF, adaptive wrap) unchanged and passing

fmt / clippy -D warnings / full workspace tests green locally.

remeasure_items from inside on_prepaint panics because List still holds its state borrow during prepaint; defer the resize past the frame.

…hlighting Rejected direction from #287: the command line was a separate StyledText element outside the terminal cell system. Move it back into the GridEmulator/paint_terminal_grid pipeline: - bash syntax highlighting is converted to truecolor SGR sequences and fed into the command emulator, so colors live in the cells natively - every fed color (highlight and default foreground) is blended 30% toward the theme background, so the whole command line reads lighter than the output below it — that tone difference marks it as input - the command snapshot rebuilds when the theme changes, since the faded colors are baked into the cells - adaptive columns and the LF normalization from #287 are unchanged

Tryanks · 2026-08-26T08:46:03Z

Two follow-ups to #287 (shipped in v0.1.45).

Crash fix

Expanding a command execution crashed the app: the adaptive-width handler called list_state.remeasure_items from inside on_prepaint, while List still holds its state borrow — a guaranteed borrow panic. The resize is now deferred past the frame with cx.defer_in.

Rendering direction correction

#287 rendered the command line as a separate StyledText element (❯ prompt, muted background) outside the terminal cell system. That direction is rejected; the command now renders inside the same GridEmulator → paint_terminal_grid pipeline as the output:

bash syntax highlighting (existing syntect infra) is converted to truecolor SGR sequences and fed into the command emulator — colors reach the cells the way a terminal would
every fed color, highlighted or default, is blended 30% toward the theme background, so the entire command line is uniformly lighter than the output below — the tone difference is what marks it as input
the command snapshot rebuilds on theme change since faded colors are baked into cells
adaptive columns and LF→CRLF output normalization from fix(chat): make command panels readable #287 are unchanged

Tests

command_highlight_is_faded_truecolor_in_terminal_cells — a bash keyword reaches the cells as AnsiColor::Spec with exactly the faded RGB
command_is_clamped_to_four_rows re-adapted to snapshot cells (SGR bytes are zero-width in column math)
all fix(chat): make command panels readable #287 regression tests (bare LF, split CRLF, adaptive wrap) unchanged and passing

fmt / clippy -D warnings / full workspace tests green locally.

remeasure_items from inside on_prepaint panics because List still holds its state borrow during prepaint; defer the resize past the frame.

…hlighting Rejected direction from #287: the command line was a separate StyledText element outside the terminal cell system. Move it back into the GridEmulator/paint_terminal_grid pipeline: - bash syntax highlighting is converted to truecolor SGR sequences and fed into the command emulator, so colors live in the cells natively - every fed color (highlight and default foreground) is blended 30% toward the theme background, so the whole command line reads lighter than the output below it — that tone difference marks it as input - the command snapshot rebuilds when the theme changes, since the faded colors are baked into the cells - adaptive columns and the LF normalization from #287 are unchanged

Tryanks · 2026-08-26T08:46:03Z

Two follow-ups to #287 (shipped in v0.1.45).

Crash fix

Expanding a command execution crashed the app: the adaptive-width handler called list_state.remeasure_items from inside on_prepaint, while List still holds its state borrow — a guaranteed borrow panic. The resize is now deferred past the frame with cx.defer_in.

Rendering direction correction

#287 rendered the command line as a separate StyledText element (❯ prompt, muted background) outside the terminal cell system. That direction is rejected; the command now renders inside the same GridEmulator → paint_terminal_grid pipeline as the output:

bash syntax highlighting (existing syntect infra) is converted to truecolor SGR sequences and fed into the command emulator — colors reach the cells the way a terminal would
every fed color, highlighted or default, is blended 30% toward the theme background, so the entire command line is uniformly lighter than the output below — the tone difference is what marks it as input
the command snapshot rebuilds on theme change since faded colors are baked into cells
adaptive columns and LF→CRLF output normalization from fix(chat): make command panels readable #287 are unchanged

Tests

command_highlight_is_faded_truecolor_in_terminal_cells — a bash keyword reaches the cells as AnsiColor::Spec with exactly the faded RGB
command_is_clamped_to_four_rows re-adapted to snapshot cells (SGR bytes are zero-width in column math)
all fix(chat): make command panels readable #287 regression tests (bare LF, split CRLF, adaptive wrap) unchanged and passing

fmt / clippy -D warnings / full workspace tests green locally.

remeasure_items from inside on_prepaint panics because List still holds its state borrow during prepaint; defer the resize past the frame.

…hlighting Rejected direction from #287: the command line was a separate StyledText element outside the terminal cell system. Move it back into the GridEmulator/paint_terminal_grid pipeline: - bash syntax highlighting is converted to truecolor SGR sequences and fed into the command emulator, so colors live in the cells natively - every fed color (highlight and default foreground) is blended 30% toward the theme background, so the whole command line reads lighter than the output below it — that tone difference marks it as input - the command snapshot rebuilds when the theme changes, since the faded colors are baked into the cells - adaptive columns and the LF normalization from #287 are unchanged

Tryanks · 2026-08-26T08:46:03Z

Two follow-ups to #287 (shipped in v0.1.45).

Crash fix

Expanding a command execution crashed the app: the adaptive-width handler called list_state.remeasure_items from inside on_prepaint, while List still holds its state borrow — a guaranteed borrow panic. The resize is now deferred past the frame with cx.defer_in.

Rendering direction correction

#287 rendered the command line as a separate StyledText element (❯ prompt, muted background) outside the terminal cell system. That direction is rejected; the command now renders inside the same GridEmulator → paint_terminal_grid pipeline as the output:

bash syntax highlighting (existing syntect infra) is converted to truecolor SGR sequences and fed into the command emulator — colors reach the cells the way a terminal would
every fed color, highlighted or default, is blended 30% toward the theme background, so the entire command line is uniformly lighter than the output below — the tone difference is what marks it as input
the command snapshot rebuilds on theme change since faded colors are baked into cells
adaptive columns and LF→CRLF output normalization from fix(chat): make command panels readable #287 are unchanged

Tests

command_highlight_is_faded_truecolor_in_terminal_cells — a bash keyword reaches the cells as AnsiColor::Spec with exactly the faded RGB
command_is_clamped_to_four_rows re-adapted to snapshot cells (SGR bytes are zero-width in column math)
all fix(chat): make command panels readable #287 regression tests (bare LF, split CRLF, adaptive wrap) unchanged and passing

fmt / clippy -D warnings / full workspace tests green locally.

remeasure_items from inside on_prepaint panics because List still holds its state borrow during prepaint; defer the resize past the frame.

…hlighting Rejected direction from #287: the command line was a separate StyledText element outside the terminal cell system. Move it back into the GridEmulator/paint_terminal_grid pipeline: - bash syntax highlighting is converted to truecolor SGR sequences and fed into the command emulator, so colors live in the cells natively - every fed color (highlight and default foreground) is blended 30% toward the theme background, so the whole command line reads lighter than the output below it — that tone difference marks it as input - the command snapshot rebuilds when the theme changes, since the faded colors are baked into the cells - adaptive columns and the LF normalization from #287 are unchanged

Tryanks added 2 commits August 26, 2026 16:36

fix(chat): defer command-panel remeasure past prepaint
c9c63bf
remeasure_items from inside on_prepaint panics because List still holds its state borrow during prepaint; defer the resize past the frame.

Tryanks merged commit 7dc0eb1 into mainAug 26, 2026
3 checks passed

Tryanks deleted the fix/command-panel-followups branch August 26, 2026 08:59

Tryanks added 2 commits August 26, 2026 16:36

fix(chat): defer command-panel remeasure past prepaint
c9c63bf
remeasure_items from inside on_prepaint panics because List still holds its state borrow during prepaint; defer the resize past the frame.

Tryanks merged commit 7dc0eb1 into mainAug 26, 2026
3 checks passed

Tryanks deleted the fix/command-panel-followups branch August 26, 2026 08:59

Tryanks added 2 commits August 26, 2026 16:36

fix(chat): defer command-panel remeasure past prepaint
c9c63bf
remeasure_items from inside on_prepaint panics because List still holds its state borrow during prepaint; defer the resize past the frame.

Tryanks merged commit 7dc0eb1 into mainAug 26, 2026
3 checks passed

Tryanks deleted the fix/command-panel-followups branch August 26, 2026 08:59

Tryanks added 2 commits August 26, 2026 16:36

fix(chat): defer command-panel remeasure past prepaint
c9c63bf
remeasure_items from inside on_prepaint panics because List still holds its state borrow during prepaint; defer the resize past the frame.

Tryanks merged commit 7dc0eb1 into mainAug 26, 2026
3 checks passed

Tryanks deleted the fix/command-panel-followups branch August 26, 2026 08:59

Tryanks added 2 commits August 26, 2026 16:36

fix(chat): defer command-panel remeasure past prepaint
c9c63bf
remeasure_items from inside on_prepaint panics because List still holds its state borrow during prepaint; defer the resize past the frame.

Tryanks merged commit 7dc0eb1 into mainAug 26, 2026
3 checks passed

Tryanks deleted the fix/command-panel-followups branch August 26, 2026 08:59

Tryanks added 2 commits August 26, 2026 16:36

fix(chat): defer command-panel remeasure past prepaint
c9c63bf
remeasure_items from inside on_prepaint panics because List still holds its state borrow during prepaint; defer the resize past the frame.

Tryanks merged commit 7dc0eb1 into mainAug 26, 2026
3 checks passed

Tryanks deleted the fix/command-panel-followups branch August 26, 2026 08:59

Tryanks added 2 commits August 26, 2026 16:36

fix(chat): defer command-panel remeasure past prepaint
c9c63bf
remeasure_items from inside on_prepaint panics because List still holds its state borrow during prepaint; defer the resize past the frame.

Tryanks merged commit 7dc0eb1 into mainAug 26, 2026
3 checks passed

Tryanks deleted the fix/command-panel-followups branch August 26, 2026 08:59

Tryanks added 2 commits August 26, 2026 16:36

fix(chat): defer command-panel remeasure past prepaint
c9c63bf
remeasure_items from inside on_prepaint panics because List still holds its state borrow during prepaint; defer the resize past the frame.

Tryanks merged commit 7dc0eb1 into mainAug 26, 2026
3 checks passed

Tryanks deleted the fix/command-panel-followups branch August 26, 2026 08:59

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Tryanks commented Aug 26, 2026

Crash fix

Rendering direction correction

Tests

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Tryanks commented Aug 26, 2026

Crash fix

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Tryanks commented Aug 26, 2026

Crash fix

Rendering direction correction

Tests

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Tryanks commented Aug 26, 2026

Crash fix

Rendering direction correction

Tests

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Reviewers

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Labels

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Development

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1 participant

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Tryanks commented Aug 26, 2026

Crash fix

Rendering direction correction

Tests

Uh oh!

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

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1 participant

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Tryanks commented Aug 26, 2026

Crash fix

Rendering direction correction

Tests