Commit Graph

23 Commits

Author SHA1 Message Date
Copilot
f4b10511c0 Fixes #4495 - Adds SuperViewChanging event to View following Cancellable Work Pattern (#4503)
* Initial plan

* Add SuperViewChanging event infrastructure and tests

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Refactor SuperViewChanging to follow Cancellable Work Pattern with cancellation support

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Remove SuperViewChangingEventArgs class and use CancelEventArgs<View?> directly

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Simplified SuperViewChanged

* Refactor SuperView change to use CWP and event args

Refactored the handling of SuperView changes in the View hierarchy to use the Cancellable Work Pattern (CWP) and standardized event argument types. The SuperView property is now settable only via an internal SetSuperView method, which leverages CWP for property changes and cancellation.

- Updated OnSuperViewChanging to accept ValueChangingEventArgs<View?>.
- SuperViewChanging event now uses EventHandler<ValueChangingEventArgs<View?>>; cancellation is via e.Handled = true.
- OnSuperViewChanged and SuperViewChanged now use ValueChangedEventArgs<View?>.
- All SuperView assignments in Add, Remove, and RemoveAll now use SetSuperView, which returns a bool for cancellation.
- CWPPropertyHelper.ChangeProperty now accepts a sender parameter, passed to event handlers.
- All property changes in View now pass this as sender to ChangeProperty.
- Updated event handler signatures and overrides in MenuBar, StatusBar, TextField, and TextView.
- Updated unit tests to use new event args and cancellation pattern.
- Minor code cleanups and improved comments.

These changes modernize and standardize property change handling, improving API consistency, extensibility, and testability.

* Refactor subview removal and event arg types

Removed redundant index check when removing subviews in View.cs, simplifying the cleanup loop. Updated TextField.OnSuperViewChanged to use a non-nullable ValueChangedEventArgs<View> parameter, enforcing stricter type safety.

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: tig <585482+tig@users.noreply.github.com>
Co-authored-by: Tig <tig@users.noreply.github.com>
2025-12-18 06:32:01 -07:00
Copilot
993487d0a1 Fixes #4493 - GetViewsUnderLocation does not return subviews of Adornment if Parent has a Subview under Adornment (#4507)
* Initial plan

* Add failing test that reproduces GetViewsUnderLocation bug

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Fix GetViewsUnderLocation to correctly order adornment subviews

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Remove debug output from test

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Address code review: Extract duplicate coordinate conversion

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Code cleanup

* code cleanup

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: tig <585482+tig@users.noreply.github.com>
Co-authored-by: Tig <tig@users.noreply.github.com>
2025-12-18 06:31:07 -07:00
Tig
ff18ad4532 Fixes build warnings recently introduced (#4506)
* Fixed warnings I recently introduced.

Replaced nullable App references with null-forgiving operator (!) in MessageBox and dialog calls to suppress nullable warnings. Updated XML docs to use Dim.Fill() and clarified method references. Made Application.Popover registration null-safe. Fixed test output helper usage in ShadowTests. No functional changes.

* Fixes Release build warnings
2025-12-17 12:57:38 -07:00
BDisp
1a54ff0872 Fixes #4502. Shadows in overlapping views are not rendered consistently (#4465)
* Fixes Wide Glyphs

* Fix some unit tests failure

* Fix more unit tests

* Fixes #4468 - `MouseGrab` regressions (#4469)

* Fixed mouse grab issue

* Fixed mouse grab regrssions.

* Update Terminal.Gui/ViewBase/View.Mouse.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Terminal.Gui/ViewBase/View.Mouse.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Terminal.Gui/ViewBase/View.Mouse.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Terminal.Gui/ViewBase/View.Mouse.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Terminal.Gui/ViewBase/View.Mouse.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Terminal.Gui/ViewBase/View.Mouse.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* code cleanup

* Update Terminal.Gui/ViewBase/View.Mouse.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Addressing pr feedback

* updated mouse.md

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Fixes #4050. Rename Command.Select and Selecting to Activate/Activating (#4470)

* Initial plan

* Rename Command.Select to Command.Activate and Selecting to Activating

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Add Activating event propagation to SuperView

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Update all comments and docs referencing Select to Activate

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Fix event log messages in examples to use Activating/Activate

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Revert automatic Activating event propagation that broke tests

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Update docfx documentation to use Activate/Activating terminology

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* renames

* Revert "Add Activating event propagation to SuperView"

This reverts commit 6d82bee9ad.

* added command diagrams

* mermaid

* updated level 3

* again

* Select->Activate in MouseTests.cs

* Update Terminal.Gui/Views/Selectors/FlagSelector.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Refactor: Rename Selecting to Activating in View APIs

Renamed the `Selecting` event and `OnSelecting` method to
`Activating` and `OnActivating` to better reflect their purpose.
Updated all related comments, test method names, variables,
and assertions in `View` and `ViewCommandTests` to align with
the new terminology.

Improved code clarity by using `_` for unused parameters in
lambda expressions. Renamed properties like `HandleSelecting`
to `HandleActivating` and adjusted naming conventions for
consistency (e.g., `OnactivatingCount` to `OnActivatingCount`).

These changes enhance readability, maintainability, and
terminology consistency across the codebase.

* Update Terminal.Gui/Views/Selectors/OptionSelector.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Typos

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: tig <585482+tig@users.noreply.github.com>
Co-authored-by: Tig <tig@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Add support for wide glyphs into the ShadowStyle.Transparent

* The "IsDirty" content of the wide glyphs should be completely false after being displayed on the screen.

* FillRect must always call AddStr method to properly handle wide characters to invalidate overlapped wide glyphs, etc.

* We must set clip to the driver screen in the case where the view isn't Adornment and SuperView is null, allowing dialogs, popovers, etc to be drawn

* These assertions are important to ensure that the drawing state is consistent

* Subviews must be drawn after the superview content being drawn

* The attribute of next column of a wide glyph should be the same if it's in the clipped area

* Applied #4486

* Updated root view clipping logic to use App's screen or a large default rectangle, ensuring proper drawing area. Added comments clarifying subview drawing order and explaining issues with certain Debug.Assert checks in complex hierarchies, suggesting unit tests instead.

* Remove ClearFrame and always draw Margin if Thickness set

Removed the unused ClearFrame method from the View class. Updated DrawAdornments to always draw the Margin when its Thickness is not empty, regardless of ShadowStyle. This simplifies the drawing logic and removes unnecessary checks.

* Fix margin thickness adjustment

* Fix shadow draw on overlapped views

* Only draw shadows at the end of each runnable

* Only call ClearNeedsDraw in the static Draw method

* Replace unit test as requested

* Also use reverse in margins although not making difference

* Fix the ShadowStyle, ShadowWidth and ShadowHeight logic

* Making sure nothing broke.

* ShadowWidth and ShadowHeight always default to 1 at invalid values

* Removes unused parameter

* Using Rune.ReplacementChar to not confusing with space char inserted by the clearing region

* Using Rune.ReplacementChar

* Using Rune.ReplacementChar

* Fix merge error

* Fixing unit tests

* Reverting changes

* Fixing unit tests

* Fix unit test

* Fix shadow on overlapped views

* Cleanup code

---------

Co-authored-by: Tig <tig@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com>
Co-authored-by: tig <585482+tig@users.noreply.github.com>
2025-12-17 11:56:31 -07:00
Tig
0a9f4b8ef1 Fixes #4492, #4480 - Transparent shadows cause underlying wide glyph rendering issues (#4490)
* WIP - experiments in fixing shadow rendering issues based on #4465

Previously, shadow size was fixed at 1x1. This change introduces ShadowWidth and ShadowHeight properties to both Margin and View, allowing variable shadow dimensions. The Margin class now manages its own shadow sizing, enforcing valid values based on ShadowStyle (e.g., Opaque and Transparent require a minimum of 1, and Opaque only allows 1). Margin.Thickness is dynamically adjusted to account for shadow size, with original values preserved and restored as needed.

ShadowView rendering is updated to correctly handle wide graphemes (such as emojis) in the shadow area, preventing rendering errors. The View class exposes ShadowWidth and ShadowHeight, synchronizing with Margin. Extensive new unit tests verify correct behavior for shadow sizing, style changes, thickness adjustments, and rendering, including edge cases and visual output.

Additional minor bug fixes and refactoring are included, such as proper management of Margin's cached clip region and correcting a loop order bug in ShadowView. The codebase is also modernized with recent C# features.

* more merge

* added border tests

* Experiment...

* Incorporated latest wideglyphs

* Comment tweaks

* Add Adornments and ViewportSettings editors to WideGlyphs

Introduce AdornmentsEditor and ViewportSettingsEditor with custom border styles and positioning, enhancing UI editing capabilities. Also update arrangeableViewAtEven to use Color.Black and Color.Green, and adjust a commented border style from Dashed to Dotted.

* Fix scenario editors and tweak scenarios.

Enhance ShadowStyles with a second shadow window (transparent style) and a button event handler that shows a message box. In WideGlyphs, add AdornmentsEditor and ViewportSettingsEditor for view property editing, apply custom color schemes to arrangeable views, and update superView with a transparent shadow and increased shadow width. These changes improve interactivity and visualization in the demo scenarios.

* Fix scenario editors and tweak scenarios.

Enhance ShadowStyles with a second shadow window (transparent style) and a button event handler that shows a message box. In WideGlyphs, add AdornmentsEditor and ViewportSettingsEditor for view property editing, apply custom color schemes to arrangeable views, and update superView with a transparent shadow and increased shadow width. These changes improve interactivity and visualization in the demo scenarios.

* Make replacement char themeable via Glyphs.ReplacementChar

Adds Glyphs.ReplacementChar as a configurable replacement character, replacing all uses of Rune.ReplacementChar. The default is now a space (' ') and can be set via config.json. Updates all rendering, string decoding, and buffer invalidation logic to use the new property, ensuring consistency and themeability. Updates tests and comments accordingly. Also includes minor UI tweaks in WideGlyphs.cs and .DotSettings updates.

* merging

* merge errors

* merged

* merged

* Refactor shadow properties to Margin; update tests

ShadowWidth and ShadowHeight are now managed solely in the Margin class, with related properties and validation logic removed from View. All code and tests now use view.Margin.ShadowWidth/ShadowHeight. Tests and documentation were updated accordingly, and wide glyph handling in test output was improved for consistency.

* Simplify ShadowSize; remove it from View as it's infreqnetly used. Make it a Size to reduce API surface area.

Replace ShadowWidth/ShadowHeight with a single ShadowSize property (of type Size) in the Margin class and related code. Update all usages, validation logic, and tests to use ShadowSize.Width and ShadowSize.Height. Introduce TryValidateShadowSize for unified validation. Modernize code with C# features and improve clarity and maintainability by treating shadow dimensions as a single unit.

* reveted

* Fix wide glyph attribute handling for second column

Ensure the attribute for the second column of wide glyphs is set correctly when within the clip region, addressing issues #4258 and #4492. Add comprehensive unit tests to verify correct attribute assignment and output rendering, including scenarios with transparent shadows. Remove obsolete test code for clarity. This improves color/style consistency for wide glyphs, especially in overlapping UI situations.

* added url
2025-12-16 14:23:32 -07:00
Tig
4c772bd5f3 Fixes #4497 - makes replacement char conifgurable (#4498)
* Add Glyphs.ReplacementChar config property

Introduced Glyphs.ReplacementChar to allow overriding the Unicode replacement character, defaulting to a space (' '). Updated both config.json and Glyphs.cs with this property, scoped to ThemeScope and documented as an override for Rune.ReplacementChar.

* Standardize to Glyphs.ReplacementChar for wide char invalidation

Replaced all uses of Rune.ReplacementChar.ToString() with Glyphs.ReplacementChar.ToString() in OutputBufferImpl and related tests. This ensures consistent use of the replacement character when invalidating or overwriting wide characters in the output buffer.

* Add configurable wide glyph replacement chars to OutputBuffer

Allows setting custom replacement characters for wide glyphs that cannot fit in the available space via IOutputBuffer.SetReplacementChars. Updated IDriver to expose GetOutputBuffer. All code paths and tests now use the configurable characters, improving testability and flexibility. Tests now use '①' and '②' for clarity instead of the default replacement character.

* Fixed warnings.

* Update IOutputBuffer.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Add tests for wide char clipping edge cases in OutputBuffer

Added three unit tests to OutputBufferWideCharTests.cs to verify and document OutputBufferImpl's behavior when wide (double-width) characters are written at the edges of a clipping region. Tests cover cases where the first or second column of a wide character is outside the clip, as well as when both columns are inside. The tests assert correct use of replacement characters, dirty flags, and column advancement, and document that certain code paths are currently unreachable due to IsValidLocation checks.

* Clarify dead code path with explanatory comments

Added comments to mark a rarely executed code path as dead code, noting it is apparently never called. Referenced the related test scenario AddStr_WideChar_FirstColumnOutsideClip_SecondColumnInside_CurrentBehavior for context. No functional changes were made.

* Remove dead code for wide char partial clip handling

Removed unreachable code that handled the case where the first column of a wide character is outside the clipping region but the second column is inside. This logic was marked as dead code and never called. Now, only the cases where the second column is outside the clip or both columns are in bounds are handled. This simplifies the code and removes unnecessary checks.

* Replaces Glyphs.ReplacementChar with Glyphs.WideGlyphReplacement to clarify its use for clipped wide glyphs. Updates IOutputBuffer to use SetWideGlyphReplacement (single Rune) instead of SetReplacementChars (two Runes). Refactors OutputBufferImpl and all test code to use the new property and method. Removes second-column replacement logic, simplifying the API and improving consistency. Updates comments and test assertions to match the new naming and behavior.

* Update themes in config.json and add new UI Catalog props

Renamed "UI Catalog Theme" to "UI Catalog" and removed the
"Glyphs.ReplacementChar" property. Added several new properties
to the "UI Catalog" theme, including default shadow, highlight
states, button alignment, and separator line style. Also added
"Glyphs.WideGlyphReplacement" to the "Hot Dog Stand" theme.

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
2025-12-15 09:26:52 -07:00
Tig
84f977937b Adds transparent shadow test (#4487)
* Add tests for overlapped view transparent shadow config

* Add test for transparent shadow showing background text

Added a unit test to verify that overlapped views with transparent shadows allow background text to show through the shadow area. The test checks both right and bottom shadow regions and asserts that the underlying content is visible, ensuring correct rendering behavior.

* Add test for transparent shadow in overlapped views

Adds Overlapped_View_With_TransparentShadow_Driver_Output_Shows_Background_Text to verify that background text is visible through transparent shadows in overlapped views. The test checks for correct rendering, ANSI color codes, and ensures the shadow area displays the expected background character.

* Refactor transparent shadow test for stricter output check

Update Overlapped_View_With_TransparentShadow_Driver_Output_Shows_Background_Text to use a smaller screen, dynamic sizing, and new overlapped view text. Replace loose output assertion with strict ANSI output comparison. Make shadow cell coordinate calculation dynamic based on view frame.

* Consolidate transparent shadow tests into ShadowStyleTests

Moved the transparent shadow driver output test from OverlappedViewTransparentShadowTests to ShadowStyleTests for better organization. Removed the now-redundant OverlappedViewTransparentShadowTests class and updated ShadowStyleTests to support output logging. All transparent shadow rendering tests are now grouped under ShadowStyleTests.
2025-12-12 18:24:34 -07:00
Copilot
e7a4df492d Fixes #4050. Rename Command.Select and Selecting to Activate/Activating (#4470)
* Initial plan

* Rename Command.Select to Command.Activate and Selecting to Activating

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Add Activating event propagation to SuperView

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Update all comments and docs referencing Select to Activate

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Fix event log messages in examples to use Activating/Activate

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Revert automatic Activating event propagation that broke tests

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Update docfx documentation to use Activate/Activating terminology

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* renames

* Revert "Add Activating event propagation to SuperView"

This reverts commit 6d82bee9ad.

* added command diagrams

* mermaid

* updated level 3

* again

* Select->Activate in MouseTests.cs

* Update Terminal.Gui/Views/Selectors/FlagSelector.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Refactor: Rename Selecting to Activating in View APIs

Renamed the `Selecting` event and `OnSelecting` method to
`Activating` and `OnActivating` to better reflect their purpose.
Updated all related comments, test method names, variables,
and assertions in `View` and `ViewCommandTests` to align with
the new terminology.

Improved code clarity by using `_` for unused parameters in
lambda expressions. Renamed properties like `HandleSelecting`
to `HandleActivating` and adjusted naming conventions for
consistency (e.g., `OnactivatingCount` to `OnActivatingCount`).

These changes enhance readability, maintainability, and
terminology consistency across the codebase.

* Update Terminal.Gui/Views/Selectors/OptionSelector.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Typos

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: tig <585482+tig@users.noreply.github.com>
Co-authored-by: Tig <tig@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
2025-12-09 12:42:34 -07:00
Tig
b2cf674e0b Fixes #4468 - MouseGrab regressions (#4469)
* Fixed mouse grab issue

* Fixed mouse grab regrssions.

* Update Terminal.Gui/ViewBase/View.Mouse.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Terminal.Gui/ViewBase/View.Mouse.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Terminal.Gui/ViewBase/View.Mouse.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Terminal.Gui/ViewBase/View.Mouse.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Terminal.Gui/ViewBase/View.Mouse.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Terminal.Gui/ViewBase/View.Mouse.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* code cleanup

* Update Terminal.Gui/ViewBase/View.Mouse.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Addressing pr feedback

* updated mouse.md

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
2025-12-09 08:32:04 -07:00
Tig
f548059a27 Fixes #4258 - Glyphs drawn at mid-point of wide glyphs don't get drawn with clipping (#4462)
* Enhanced `View.Drawing.cs` with improved comments, a new
`DoDrawComplete` method for clip region updates, and
clarified terminology. Added detailed remarks for the
`OnDrawComplete` method and `DrawComplete` event.

Refactored `ViewDrawingClippingTests` to simplify driver
setup, use target-typed `new`, and add a new test for wide
glyph clipping with bordered subviews. Improved handling of
edge cases like empty viewports and nested clips.

Added `WideGlyphs.DrawFlow.md` and
`ViewDrawingClippingTests.DrawFlow.md` to document the draw
flow, clipping behavior, and coordinate systems for both the
scenario and the test.

Commented out redundant `Driver.Clip` initialization in
`ApplicationImpl`. Added a `BUGBUG` comment in `Border` to
highlight missing redraw logic for `LineStyle` changes.

* Uncomment Driver.Clip initialization in Screen redraw

* Fixed it!

* Fixes #4258 - Correct wide glyph and border rendering

Refactored `OutputBufferImpl.AddStr` to improve handling of wide glyphs:
- Wide glyphs now modify only the first column they occupy, leaving the second column untouched.
- Removed redundant code that set replacement characters and marked cells as not dirty.
- Synchronized cursor updates (`Col` and `Row`) with the buffer lock to prevent race conditions.
- Modularized logic with helper methods for better readability and maintainability.

Updated `WideGlyphs.cs`:
- Removed dashed `BorderStyle` and added border thickness and subview for `arrangeableViewAtEven`.
- Removed unused `superView` initialization.

Enhanced tests:
- Added unit tests to verify correct rendering of borders and content at odd columns overlapping wide glyphs.
- Updated existing tests to reflect the new behavior of wide glyph handling.
- Introduced `DriverAssert.AssertDriverOutputIs` to validate raw ANSI output.

Improved documentation:
- Expanded problem description and root cause analysis in `WideGlyphBorderBugFix.md`.
- Detailed the fix and its impact, ensuring proper layering of content at any column position.

General cleanup:
- Removed unused imports and redundant code.
- Improved code readability and maintainability.

* Code cleanup

* Update Tests/UnitTestsParallelizable/ViewBase/Draw/ViewDrawingClippingTests.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Terminal.Gui/Drivers/OutputBufferImpl.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Tests/UnitTestsParallelizable/ViewBase/Draw/ViewDrawingClippingTests.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Tests/UnitTestsParallelizable/ViewBase/Draw/ViewDrawingClippingTests.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Fixed test slowness problem

* Simplified

* Rmoved temp .md files

* Refactor I/O handling and improve testability

Refactored `InputProcessor` and `Output` access by replacing direct property usage with `GetInputProcessor()` and `GetOutput()` methods to enhance encapsulation. Introduced `GetLastOutput()` and `GetLastBuffer()` methods for better debugging and testability.

Centralized `StringBuilder` usage in `OutputBase` implementations to ensure consistency. Improved exception handling with clearer messages. Updated tests to align with the refactored structure and added a new test for wide glyph handling.

Enhanced ANSI sequence handling and simplified cursor visibility logic to prevent flickering. Standardized method naming for consistency. Cleaned up redundant code and improved documentation for better developer clarity.

* Refactored `NetOutput`, `FakeOutput`, `UnixOutput`, and `WindowsOutput` classes to support access to `Output` and added a `IDriver.GetOutput` to acess the `IOutput`. `IOutput` now has a `GetLastOutput` method.

Simplified `DriverAssert` logic and enhanced `DriverTests` with a new test for wide glyph clipping across drivers.

Performed general cleanup, including removal of unused code, improved formatting, and adoption of modern C# practices. Added `using System.Diagnostics` in `OutputBufferImpl` for debugging.

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
2025-12-08 12:28:32 -07:00
Tig
5da7e59aa2 Fixes #4456 - Clear MouseGrabView in App.End (#4460)
* Fixed MouseGrabView bug.

Added extensive test coverage for `Keyboard`, `Mouse`, `Timeout`, and `Popover` functionalities, including edge cases and concurrent access. Introduced parameterized and data-driven tests to reduce redundancy and improve clarity.

Refactored codebase for modularity and maintainability,
introducing new namespaces and reorganizing classes. Enhanced `MouseImpl`, `KeyboardImpl`, and `Runnable` implementations with improved event handling, thread safety, and support for the Terminal.Gui Cancellable Work Pattern (CWP).

Removed deprecated code and legacy tests, such as `LogarithmicTimeout` and `SmoothAcceleratingTimeout`. Fixed bugs related to mouse grabbing during drag operations and unbalanced `ApplicationImpl.Begin/End` calls. Improved documentation and code readability with modern C# features.

* Code cleanup.

* Update Tests/UnitTestsParallelizable/Application/Runnable/RunnableIntegrationTests.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Improve null handling and simplify test setup

In `MouseImpl.cs`, added an early `return` after the `UngrabMouse()`
call within the `if (view is null)` block to prevent further execution
when `view` is `null`, improving null reference handling.

In `RunnableIntegrationTests.cs`, removed the initialization of the
`IApplication` object (`app`) from the `MultipleRunnables_IndependentResults`
test method, simplifying the test setup and focusing on runnable behavior.

* Code cleanup

* API doc link cleanup

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
2025-12-07 13:01:19 -07:00
BDisp
0270183686 Fixes #4453. Regression in wide glyph rendering on all drivers (#4458) 2025-12-07 11:40:43 -07:00
Copilot
dd12df7fb7 Fixes #4176. Removes View.MouseClick (#4450)
* Initial plan

* Add comprehensive MouseClick removal analysis

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Fix code review feedback on analysis document

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Add actual line numbers to analysis document

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Final polish on analysis document - clarify TextView

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Phase 3: Port 6 simple Views from MouseClick to Selecting/MouseBindings

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Phase 2: Port 10 Scenarios from MouseClick to Selecting/remove

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Update analysis document - Phases 2 & 3 complete

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Fix failing tests - Button multi-button support and Label focus handling

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Phase 4: Port ScrollBar from OnMouseClick to OnSelecting; remove analysis doc

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Phase 5: Update/remove tests that explicitly test MouseClick API

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Code cleanup

* Remove MouseClick event

Consolidated mouse event handling by removing the `MouseClick`
event and integrating its functionality into the `MouseEvent`
event. Simplified `MouseEventArgs` documentation and added
support for invoking commands bound to mouse events.

Reorganized code by removing `Mouse Pressed Events` and
`Mouse Click Events` regions, introducing a new `WhenGrabbed
Handlers` region. Updated tests to replace `MouseClick` with
`MouseEvent`, adjusted test logic, and improved variable
naming for clarity.

Removed redundant assertions and unused code related to
`MouseClick`. Improved event propagation logic to ensure
proper handling of unhandled events. Performed general code
cleanup to enhance readability and maintainability.

* Updated deep dives.

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: tig <585482+tig@users.noreply.github.com>
Co-authored-by: Tig <tig@users.noreply.github.com>
2025-12-06 14:41:20 -07:00
Copilot
7a8b6e4465 Fixes #4167. Add Accepted event to View (#4452)
* Initial plan

* Add Accepted event to View and remove duplicate implementations

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Update RaiseAccepting to call RaiseAccepted and add comprehensive tests

Co-authored-by: tig <585482+tig@users.noreply.github.com>

* Fix code style violations - use explicit types and target-typed new

Co-authored-by: tig <585482+tig@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: tig <585482+tig@users.noreply.github.com>
Co-authored-by: Tig <tig@users.noreply.github.com>
2025-12-06 09:36:32 -07:00
Tig
d303943809 Fixes #4004 & #4445 - Merge of Application.ForceDriver and Driver.Force16Colors and windows" broken in conhost and cmd (#4448)
* Fixes #4004. Driver "windows" broken in conhost and cmd

* Fix unit tests

* Remove IsVirtualTerminal from IApplication. Add IDriverInternal and IOutputInternal interfaces

* Fix result.IsSupported

* Remove internal interfaces and add them in the implementations classes

* Move Sixel from IApplication to IDriver interface it's a characteristic of the driver

* Only if IOutput is OutputBase then set the internal properties

* Prevents driver windows error on Unix system

* Fix scenario sixel error

* Comment some tests because is keyboard layout dependent and shifted key is needed to produce them (Pt)

* Add 🇵🇹 regional indicators test proving they ca be joined as only one grapheme

* SetConsoleActiveScreenBuffer is already called by the constructor and is only needed once

* Finally fixed non virtual terminal in windows driver

* Add more Sixel unit tests

* Add unit tests for OutputBase class

* Avoid emit escape sequence

* Fix assertion failure in UICatalog

* Let each driver to deal with the Sixel write

* When Shutdown is called by the static Application then the ApplicationImpl.ResetStateStatic should be also called

* Add more OutputBase with Sixel unit tests

* Fix some issues with IsVirtualTerminal and Force16Colors with unit tests improvement

* Add Sixel Detect method unit test

* Make Sixel IsSupported and SupportsTransparency consistent with more unit tests

* Fix namespaces and unit test

* Covering more ApplicationImpl Sixel unit test

* Remove DriverImplProxy because sometimes fails in parallel unit tests

* Fix Init_KeyBindings_Are_Not_Reset unit test failing

* Revert "Fix Init_KeyBindings_Are_Not_Reset unit test failing"

This reverts commit 0ab298bc56.

* Fix Force16Colors but still use Application.Force16Colors because of CM

* Enforce conditional

* Revert change

* Moving to a new file

* Add the same workaround as the All_Scenarios_Benchmark unit test

* Fixes #4440. TextView with ReadOnly as true, MoveRight doesn't select text up to the end of the line

* Fixes #4442. TextField PositionCursor doesn't treat zero width as one column

* Each character must return at least one column, with the exception of Tab.

* Add unit test for the ScrollOffset

* Each character must return at least one column, with the exception of Tab.

* Add unit test for the LeftColumn

* WIP

* Refactor DriverImpl and OutputBase for maintainability

Refactored `DriverImpl` to remove `IDisposable` and streamline event
handling, including replacing `OnSizeMonitorOnSizeChanged` with an
inline lambda. Reintroduced `SizeChanged` and updated `SetScreenSize`
to invoke it. Moved `SupportsTrueColor` from `OutputBase` to
`DriverImpl` and reintroduced `Force16Colors` with updated logic.

Reintroduced and updated several `OutputBuffer`-related properties
and methods in `DriverImpl`, including `Screen`, `Clip`, `Cols`, and
`Contents`. Moved `Clipboard` from `OutputBase` to `DriverImpl` and
initialized it with `FakeClipboard`. Simplified `Refresh` and `ToAnsi`
methods in `DriverImpl`.

Removed `Force16Colors` from `OutputBase` and simplified method
signatures, including `ToAnsi` and `BuildAnsiForRegion`. Fixed a
parameter name typo in `AppendOrWriteAttribute`. Made minor code
formatting adjustments.

These changes improve code maintainability, reduce redundancy, and
align the implementation with updated design requirements.

* Refactor Force16Colors handling and improve UICatalog

Refactored the `Force16Colors` property:
- Moved it from `DriverImpl` to `IOutput` and `OutputBase`.
- Simplified its management by removing redundant logic.
- Added `OnDriverOnForce16ColorsChanged` to handle updates.

Updated `UICatalogRunnable`:
- Replaced `Driver.Force16Colors` with `Application.Driver.Force16Colors`.
- Added an `F7` shortcut to toggle `Force16Colors`.
- Removed redundant event handlers and improved formatting.

Updated `config.json`:
- Replaced `Application.Force16Colors` with `Driver.Force16Colors`.
- Improved theme configuration formatting for readability.

Other changes:
- Removed the `force16Colors` parameter from `IOutput.ToAnsi`.
- Improved diagnostics handling in `UICatalogRunnable`.
- General code cleanup for readability and maintainability.

* Refactor `Force16Colors` access and improve null safety

Refactored `Force16Colors` property access to use `Application.Driver!`
for null safety and consistency. Updated event handlers to align with
this pattern. Replaced nullable `DrawContext?` parameters with
non-nullable `DrawContext` in `OnDrawingContent` overrides across
multiple classes to enforce stricter nullability checks.

Removed unused `_cachedCursorVisibility` field in `OutputBase.cs` and
cleaned up commented-out legacy code in `UICatalogRunnable.cs`. Updated
XML documentation to reflect method signature changes and property
references. Refactored `Shortcut` example in documentation for
consistency.

Replaced `Application.LayoutAndDraw` with `SetNeedsDraw` for marking
views as needing redraw. Performed general code cleanup to remove
redundant code and improve consistency.

* Refactor ForceDriver and Force16Colors properties

Removed `[Obsolete]` from `Application.ForceDriver`, making it a stable API. Added comments to clarify its role as a configuration property and its synchronization with `IApplication.ForceDriver`. Introduced `_forceDriver` as a private backing field.

Removed `Force16Colors` from `ApplicationImpl` and eliminated reset logic for `ForceDriver` and `Force16Colors` during shutdown, shifting state management responsibility to the library user.

Updated comments in `Driver.cs` to document `Force16Colors` as a configuration property and its synchronization with `IDriver.Force16Colors`. Retained `_force16Colors` as a private backing field for configuration overrides.

* Updated docs

* There is no way to detect Sixel transparency and so relying in VTS or Xterm with transparency

* Fix detect Sixel unit tests with the adjusting code

* Refactored Output.

* MErging

* - Added `OnDriverOnForce16ColorsChanged` method to handle `Driver.Force16ColorsChanged` events and update the `Force16Colors` property.

- Implemented `IDisposable` to ensure proper cleanup of resources, including unsubscribing from `SizeMonitor.SizeChanged` and `Driver.Force16ColorsChanged` events, and disposing of `_output`.
- Replaced inline `SizeMonitor.SizeChanged` event handler with a dedicated method, `OnSizeMonitorOnSizeChanged`, for better readability and maintainability.

- Simplified the `Screen` property by removing commented-out code and directly returning a `Rectangle` based on `OutputBuffer` dimensions.
- Updated the `Force16Colors` property to use `_output` for both getting and setting its value.
- Performed general cleanup, including removing unused code and improving code structure.

* merged

* Refactor Sixel handling with ConcurrentQueue

Replaced `List<SixelToRender>` with `ConcurrentQueue<SixelToRender>`
to improve thread safety and performance in sixel management.
Updated the `Images` class to avoid unnecessary removal and
re-creation of sixel objects by updating existing ones in place.

Refactored `Application.Sixel` to return a `ConcurrentQueue` and
introduced `GetSixels` in `IDriver` and `IOutput` for consistent
access. Updated `OutputBase` to use a private `ConcurrentQueue`
and adjusted rendering logic accordingly.

Removed legacy and redundant code, including `Application.Driver?.Sixel.Clear()`
and unused properties in `DriverImpl` and `ApplicationImpl`. Updated
tests in `OutputBaseTests` to align with the new implementation.

Added `using System.Collections.Concurrent` where necessary and
improved documentation to reflect the changes. These updates
enhance thread safety, simplify the codebase, and align with
modern concurrent programming practices.

* Tweak

* Refactor DriverImpl to use Dispose and improve modularity

Replaced `Driver.End()` with `Driver.Dispose()` across the codebase, aligning with the `IDisposable` pattern for proper resource cleanup. Updated `DriverImpl` to implement `Dispose`, ensuring event unsubscriptions and resource disposal.

Enhanced `DriverImpl` structure by organizing code into logical regions, improving modularity and readability. Refactored and reintroduced methods and properties like `Clipboard`, `Screen`, `SetScreenSize`, `Cols`, `Rows`, and others for better encapsulation.

Updated the `IDriver` interface to include `IDisposable` and reorganized it into regions. Added new methods and properties such as `Init`, `Refresh`, `Suspend`, `QueueAnsiRequest`, and `ToAnsi`.

Refactored unit tests to replace `driver.End()` with `driver.Dispose()` and ensured proper resource cleanup. Improved code comments and documentation for better clarity.

Aligned with modern C# practices, adopting features like null-coalescing operators and pattern matching. Removed redundant code, addressed some TODOs, and modularized the codebase for maintainability and extensibility.

* Refactor driver docs and update View.Driver usage

Updated `application.md` to clarify the purpose of the `View.Driver` property, replacing the obsolete `Application.Driver`. Added a reference to the "Drivers Deep Dive" documentation for further details.

Refactored the `OnDrawContent` method to use the `Driver` property, ensuring compatibility with the new driver architecture.

Added a new section, "Testing with the New Architecture," to `application.md`, highlighting the improved testability of the instance-based architecture.

Expanded and reorganized `drivers.md` to provide a detailed breakdown of the `IDriver` interface, including lifecycle, components, screen and display, color support, content buffer, drawing, cursor, input events, and ANSI escape sequences. Introduced new subsections for clarity and emphasized the modular design for maintainability.

Added a note in `drivers.md` discouraging direct access to the `Driver` and recommending higher-level abstractions like `Terminal.Gui.App.Application.Screen` and `Terminal.Gui.ViewBase.View` methods for positioning and drawing.

* Refactor IsVirtualTerminal to IsLegacyConsole

Replaced the `IsVirtualTerminal` property with `IsLegacyConsole` across the codebase to better represent legacy versus modern terminal environments. Updated logic in `SixelSupportDetector`, `DriverImpl`, and `OutputBase` to use the new property.

Refactored tests to align with the updated property, including renaming test methods, adjusting mock setups, and replacing `VirtualTerminalTests` with `LegacyConsoleTests`.

Simplified `WindowsOutput` implementation to handle console modes and sixel rendering based on `IsLegacyConsole`. Removed redundant code related to `IsVirtualTerminal`.

Improved code readability and maintainability by using more descriptive property names and ensuring consistency across the codebase. Updated `.DotSettings` with new entries.

* Update Examples/UICatalog/Scenarios/LineDrawing.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Examples/UICatalog/Scenarios/Images.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Examples/UICatalog/Scenarios/Images.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Terminal.Gui/App/IApplication.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Terminal.Gui/App/ApplicationImpl.Lifecycle.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Examples/UICatalog/Scenarios/ColorPicker.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Examples/UICatalog/Scenarios/ColorPicker.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Fix formatting and typo in code and documentation

Improved code readability in `LineDrawing.cs` by fixing spacing
around the ternary operator in `Width` and `Y` property assignments.
Corrected a typo in `drivers.md` by changing "Configuraiton Manager"
to "Configuration Manager" for accurate documentation.

* Test failure casued by assert left in by accident.

* Added a workaround in `OutputBase.cs` to address dirty cell handling in legacy console mode by marking all buffer cells as dirty.

Refactored `_disableMouseCb` event handling in `UICatalogRunnable.cs` to use the `Selecting` event for toggling `Application.IsMouseDisabled`. Simplified `MouseImpl.cs` by converting `App` to an auto-implemented property and removing redundant namespace usage.

Streamlined logging in `WindowsOutput.cs` by replacing verbose `Logging.Logger` calls with shorter alternatives (`Logging.Information`, `Logging.Error`, etc.).

* Update theme and remove unused ListView component

The application's default theme configuration was updated from "Light" to "Amber Phosphor" by modifying the `ConfigurationManager.RuntimeConfig` value.

Additionally, the `ListView` component in the `ExampleWindow` class was removed. This included its initialization, layout properties (`Y`, `Height`, `Width`), and its data source (["One", "Two", "Three", "Four"]).

* Increase safety timeout in NestedRunTimeoutTests to 10s

The timeout duration for the safety mechanism in the
`NestedRunTimeoutTests` class was increased from 5000ms (5s)
to 10000ms (10s). This change allows the app more time to
complete before triggering the safety timeout, reducing the
likelihood of premature termination during long-running tests.

Refactor and enhance test coverage

Refactored `Load_WithInvalidJson_AddsJsonError` test in `SourcesManagerTests.cs` to improve organization and added a note about its impact on parallel execution. Increased the safety timeout in `NestedRunTimeoutTests.cs` from 5 seconds to 10 seconds to address potential premature test timeouts.

* Handle null Driver gracefully in event subscription

Replaced `ArgumentNullException.ThrowIfNull(Driver)` with a null-check conditional in `SubscribeDriverEvents` and `UnsubscribeDriverEvents`. If `Driver` is `null`, the methods now log an error using `Logging.Error` and return early. This prevents potential exceptions and improves error handling.

---------

Co-authored-by: BDisp <bd.bdisp@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
2025-12-05 17:40:48 -07:00
Tig
e192b5622d Updated the OnDrawingContent method across multiple classes to accept a DrawContext? context parameter, replacing the parameterless version. This change standardizes the drawing API and enables context-aware drawing operations.
The refactor includes:
- Modifying method signatures in classes like `AnimationScenario`, `Images`, `DrawingArea`, `AttributeView`, `Snake`, and others.
- Removing the parameterless `OnDrawingContent` method from the `View` class.
- Updating calls to the base class implementation to pass the `context` parameter.
- Adjusting comments and documentation to reflect the new method signature.

This change ensures consistency and prepares the codebase for more advanced drawing capabilities.
2025-12-04 14:48:02 -07:00
Tig
3a8de25dce Refactored NeedsDraw and SubViewNeedsDraw logic to improve clarity and control over redraw state. Introduced SetSubViewNeedsDrawDownHierarchy for better propagation of redraw flags. Updated Margin and Adornment classes to align with the new redraw management.
Enhanced `View` class drawing logic to ensure proper ordering of margin and subview rendering, and introduced `DoDrawContent` for encapsulated content drawing. Improved comments and documentation for better maintainability.

Updated tests to reflect the new redraw management methods. Made minor formatting changes and removed redundant code for consistency and readability.
2025-12-04 14:41:25 -07:00
Tig
96151201f6 Fix SubViewNeedsDraw handling and improve test coverage
Refactored `View` class to ensure `SuperView.SubViewNeedsDraw`
is managed correctly. Added logic to prevent clearing the flag
prematurely when sibling subviews still require drawing.

Introduced a new `SubViewNeedsDraw` property with a private
setter and added `TODO` comments for potential future
improvements, such as making it a computed property.

Updated and added tests in `NeedsDrawTests` and `StaticDrawTests`
to validate the corrected behavior and prevent regressions.
Re-enabled a previously skipped test after fixing the related bug.
2025-12-04 12:36:54 -07:00
Tig
193a5873d1 Fixes bugs where unnecessary Draw operations were happening in LayoutAndDraw. In some cases causing everything to always be drawn.
Refactored `NeedsDraw` logic into a modular implementation in `View.NeedsDraw.cs`, introducing methods to manage drawing states more effectively. Updated `Menus.cs` event handlers to include null checks for robustness. Improved margin drawing logic in `Margin.cs` with better performance and debugging assertions.

Added comprehensive unit tests in `NeedsDrawTests.cs` and `StaticDrawTests.cs` to validate the new drawing logic, including edge cases and static `View.Draw` behavior. Removed redundant tests from `ViewDrawingFlowTests.cs`.

Refactored diagnostic flags handling in `UICatalogRunnable.cs` for clarity. Performed general code cleanup, leveraging modern C# features and improving maintainability.
2025-12-04 12:20:44 -07:00
Tig
6a334bbf2e Optimize drawing logic and refine NeedsDraw handling
Improved the drawing system by adding conditions to check `Border.NeedsDraw` and `Padding.NeedsDraw` before drawing their subviews, reducing unnecessary operations. Commented out a brute-force `SetNeedsDraw` call for certain views to enhance performance.

Updated the logic for clearing `SubViewNeedsDraw` in `SuperView` to ensure it is only cleared when appropriate, preventing potential issues in the draw system. Marked the test `ClearNeedsDraw_WithSiblings_DoesNotClearSuperViewSubViewNeedsDraw` as skipped, as it is no longer valid due to these changes.
2025-12-03 18:02:07 -07:00
Tig
641a0a599c Optimize View drawing logic and update ClearViewport tests
Refactored the `View` class to include a `NeedsDraw` check in
multiple drawing methods, improving rendering efficiency.
Adjusted `OnDrewText` and `DrewText` event handling for
consistency. Removed unused code and redundant tests.

Rewrote and reorganized `ClearViewportTests` for clarity and
compatibility with the new `NeedsDraw` logic. Added new tests
to validate `ClearViewport` behavior under various conditions,
including transparent viewports, event cancellations, and
content-only clearing.

Updated namespaces for better alignment, disabled a noisy
`ComboBoxTests` test, and improved code formatting and
maintainability across files.
2025-12-03 16:30:22 -07:00
Tig
6049857813 Refactor LayoutAndDraw and fix ClearNeedsDraw bugs
Refactored the `LayoutAndDraw` method in `ApplicationImpl.Screen.cs` to improve clarity, naming consistency, and redraw logic. Enhanced handling of the `Driver` object to optimize redraws.

Simplified `IterationImpl` in `ApplicationMainLoop.cs` by commenting out redundant checks. Fixed a bug in `SetCursor` to ensure null safety and improve cursor positioning logic.

Modified `ClearNeedsDraw` in `View.Drawing.cs` to prevent premature clearing of the `SuperView`'s `SubViewNeedsDraw` flag. Added explanatory comments to clarify the behavior.

Introduced new unit tests in `NeedsDrawTests.cs` to verify the correctness of `ClearNeedsDraw`:
- Ensured sibling views do not prematurely clear `SuperView`'s flags.
- Verified proper clearing of flags for views, adornments, and descendants.

Improved test coverage and added detailed comments to document expected behavior.
2025-12-03 15:57:27 -07:00
Tig
a84b2c4896 Fixes #4419, #4148, #4408 - Toplevel is GONE - Replaced by Runnable (#4422)
* WIP: Broken

* Got working. Mostly.

* Parllel tests pass

* More progres

* Fixed app tests.

* Mouse

* more progress.

* working on shortcut

* Shortcut accept on ENTER is broken.

* One left...

* More test progress.

* All unit tests pass. Still some issues though.

* tweak

* Fixed Integration Tests

* Fixed UI Catalog

* Tweaking CP to try to find race condition

* Refactor StandardColors and improve ColorPicker logic

Refactored `StandardColors` to use lazy initialization for static fields, improving performance and avoiding static constructor convoy effects. Introduced `NamesValueFactory` and `MapValueFactory` methods for encapsulated initialization logic.

Simplified `GetColorNames` to directly return `_names.Value`. Improved `TryParseColor` by clarifying default value usage and adopting object initializer syntax. Updated `TryNameColor` to use `_argbNameMap.Value`.

Refactored `GetArgb` for better readability. Replaced `MultiStandardColorNameResolver` with `StandardColorsNameResolver` in `ColorPicker`. Commented out `app.Init("Fake")` in `ColorPickerTests` for testing purposes.

Made minor formatting improvements, including updated comments and XML documentation for consistency.

* revert

* Throttle input loop to prevent CPU spinning

Introduce a 20ms delay in the input loop of `InputImpl<TInputRecord>`
to prevent excessive CPU usage when no input is available. Removed
the `DateTime dt = Now();` line and the `while (Peek())` block, which
previously enqueued input records.

This change improves resource management, especially in scenarios
where multiple `ApplicationImpl` instances are created in parallel
tests without calling `Shutdown()`. It prevents thread pool
exhaustion and ensures better performance in such cases.

* Refactor ApplicationImpl to use IDisposable pattern

Implemented the IDisposable pattern in ApplicationImpl to improve resource management. Added `Dispose` and `DisposeCore` methods, and marked the `Shutdown` method as obsolete, encouraging the use of `Dispose` or `using` statements instead. Updated the `IApplication` interface to inherit from IDisposable and added `GetResult` methods for retrieving run session results.

Refactored unit tests to adopt the new lifecycle management approach, replacing legacy `Shutdown` calls with `Dispose` or `using`. Removed fragile and obsolete tests, and re-enabled previously skipped tests after addressing underlying issues.

Updated `FakeApplicationLifecycle` and `SetupFakeApplicationAttribute` to align with the new disposal pattern. Improved documentation and examples to guide users toward modern usage patterns. Maintained backward compatibility for legacy singleton usage.

* Add IDisposable pattern with input loop throttling

- Add IDisposable to IApplication for proper resource cleanup
- Add 20ms throttle to input loop (prevents CPU spinning)
- Add Lazy<T> to StandardColors (eliminates convoy effect)
- Add MainLoopCoordinatorTests suite (5 new tests)
- Add Dispose() calls to all 16 ColorPickerTests
- Mark Application.Shutdown() as [Obsolete]

IApplication now requires Dispose() for cleanup

Performance: 100x CPU reduction, 15x faster disposal, tests complete in <5s

Fixes: Thread leaks, CPU saturation, test hangs in parallel execution
Docs: Updated application.md and newinv2.md with disposal patterns

* Refactor test for input loop throttling clarity

Updated `InputLoop_Throttle_Limits_Poll_Rate` test to improve clarity, reliability, and efficiency:
- Rewrote summary comment to clarify purpose and emphasize the 20ms throttle's role in preventing CPU spinning.
- Replaced `var` with explicit types for better readability.
- Reduced test duration from 1s to 500ms to improve test speed.
- Revised assertions:
  - Replaced range-based assertion with upper-bound check to ensure poll count is below 500, avoiding timing sensitivity issues.
  - Added assertion to verify the thread ran and was not immediately canceled.
- Added a 2-second timeout to `inputTask.Wait` and verified task completion.
- Improved comments to explain test behavior and reasoning behind changes.

* tweaks

* Fix nullabiltiy stuff.

* runnable fixes

* more nullabe

* More nullability

* warnings gone

* Fixed fluent test failure.

* Refactor ApplicationImpl and update Runnable layout logic

Refactored `ApplicationImpl.Run.cs` for improved readability and
atomicity:
- Combined `if (wasModal)` with `SessionStack?.TryPop` to streamline
  logic.
- Simplified restoration of `previousRunnable` by reducing nesting.
- Updated comments for clarity and retained `SetIsModal` call.

Simplified focus-setting logic in `ApplicationImpl.Run.cs` using
pattern matching for `TopRunnableView`.

In `Runnable<TResult>`, added `SetNeedsLayout` after `IsModalChanged`
to ensure layout updates. Removed an unused empty line for cleanup.

Corrected namespace in `GetViewsUnderLocationForRootTests.cs` to
align with test structure.

* Update layout on modal state change

A call to `SetNeedsLayout()` was added to the `OnIsModalChanged`
method in the `Runnable` class. This ensures that the layout
is updated whenever the modal state changes.

* Increase test timeout for inputTask.Wait to 10 seconds

Extended the timeout duration for the `inputTask.Wait` method
from 4 seconds to 10 seconds in `MainLoopCoordinatorTests`.
This change ensures the test has a longer window to complete
under conditions of increased load or slower execution
environments, reducing the likelihood of false test failures.

* Refactor project files and simplify test logic

Removed `<LangVersion>` and `<ImplicitUsings>` properties from
`UnitTests.csproj` and `UnitTests.Parallelizable.csproj` to rely
on default SDK settings and disable implicit global usings.

Simplified the `SizeChanged_Event_Still_Fires_For_Compatibility`
test in `FakeDriverTests` by removing the `screenChangedFired`
variable, its associated event handler, and related assertions.
Also removed obsolete warning suppression directives as they
are no longer needed.

* Reduce UnitTestsParallelizable iterations from 10 to 3

Reduced the number of iterations for the UnitTestsParallelizable
test suite from 10 to 3 to save time and resources while still
exposing concurrency issues. Updated the loop and log messages
to reflect the new iteration count.

* disabled InputLoop_Throttle_Limits_Poll_Rate

* Refactor app lifecycle and improve Runnable API

Refactored `Program.cs` to simplify application lifecycle:
- Modularized app creation, initialization, and disposal.
- Improved result handling and ensured proper resource cleanup.

Re-implemented `Runnable<TResult>` with a cleaner design:
- Retained functionality while improving readability and structure.
- Added XML documentation and followed the Cancellable Work Pattern.

Re-implemented `RunnableWrapper<TView, TResult>`:
- Enabled wrapping any `View` to make it runnable with typed results.
- Added examples and remarks for better developer guidance.

Re-implemented `ViewRunnableExtensions`:
- Provided fluent API for making views runnable with or without results.
- Enhanced documentation with examples for common use cases.

General improvements:
- Enhanced code readability, maintainability, and error handling.
- Replaced redundant code with cleaner, more maintainable versions.

* Modernize codebase for Terminal.Gui and MVVM updates

Refactored `LoginView` to remove redundant `Application.LayoutAndDraw()`
call. Enhanced `LoginViewModel` with new observable properties for
automatic property change notifications. Updated `Message` class to use
nullable generics for improved type safety.

Replaced legacy `Application.Init()` and `Application.Run()` calls with
the modern `IApplication` API across `Program.cs`, `Example.cs`, and
`ReactiveExample`. Ensured proper disposal of `IApplication` instances
to prevent resource leaks.

Updated `TerminalScheduler` to integrate with `IApplication` for
invoking actions and managing timeouts. Added null checks and improved
timeout disposal logic for robustness.

Refactored `ExampleWindow` for better readability and alignment with
modern `Terminal.Gui` conventions. Cleaned up unused imports and
improved code clarity across the codebase.

Updated README.md to reflect the latest `Terminal.Gui` practices,
including examples of the `IApplication` API and automatic UI refresh
handling. Renamed `LoginAction` to `LoginActions` for consistency.

* Refactor: Transition to IRunnable-based architecture

Replaced `Toplevel` with `Window` as the primary top-level UI element. Introduced the `IRunnable` interface to modernize the architecture, enabling greater flexibility and testability. Deprecated the static `Application` class in favor of the instance-based `IApplication` model, which supports multiple application contexts.

Updated methods like `Application.Run()` and `Application.RequestStop()` to use `IRunnable`. Removed or replaced legacy `Modal` properties with `IsModal`. Enhanced the `IApplication` interface with a fluent API, including methods like `Run<TRunnable>()` and `GetResult<T>()`.

Refactored tests and examples to align with the new architecture. Updated documentation to reflect the instance-based model. Deprecated obsolete members and methods, including `Application.Current` and `Application.TopRunnable`.

Improved event handling by replacing the `Accept` event with `Accepting` and using `e.Handled` for event processing. Updated threading examples to use `App?.Invoke()` or `app.Invoke()` for UI updates. Cleaned up redundant code and redefined modal behavior for better consistency.

These changes modernize the `Terminal.Gui` library, improving clarity, usability, and maintainability while ensuring backward compatibility where possible.

* Refactor: Replace Toplevel with Runnable class

This commit introduces a major architectural update to the `Terminal.Gui` library, replacing the legacy `Toplevel` class with the new `Runnable` class. The changes span the entire codebase, including core functionality, tests, documentation, and configuration files.

- **Core Class Replacement**:
  - Replaced `Toplevel` with `Runnable` as the base class for modal views and session management.
  - Updated all references to `Toplevel` in the codebase, including constructors, methods, and properties.

- **Configuration Updates**:
  - Updated `tui-config-schema.json` to reflect the new `Runnable` scheme.

- **New Classes**:
  - Added `UICatalogRunnable` for managing the UI Catalog application.
  - Introduced `Runnable<TResult>` as a generic base class for blocking sessions with result handling.

- **Documentation and Tests**:
  - Updated documentation to emphasize `Runnable` and mark `Toplevel` as obsolete.
  - Refactored test cases to use `Runnable` and ensure compatibility.

- **Behavioral Improvements**:
  - Enhanced lifecycle management and alignment with the `IRunnable` interface.
  - Improved clarity and consistency in naming conventions.

These changes modernize the library, improve flexibility, and provide a clearer architecture for developers.

* Refactor: Consolidate Runnable classes and decouple View from ApplicationImpl

- Made Runnable<TResult> inherit from Runnable (eliminating ~180 LOC duplication)
- Moved View init/layout/cursor logic from ApplicationImpl to Runnable lifecycle events
- ApplicationImpl.Begin now operates purely on IRunnable interface

Related to #4419

* Simplified the disposal logic in `ApplicationImpl.Run.cs` by replacing
the type-specific check for `View` with a more general check for
`IDisposable`. This ensures proper disposal of any `IDisposable`
object, improving robustness.

Removed the `FrameworkOwnedRunnable` property from the `ApplicationImpl`
class in `ApplicationImpl.cs` and the `IApplication` interface in
`IApplication.cs`. This eliminates the need to manage this property,
reducing complexity and improving maintainability.

Updated `application.md` to reflect the removal of the
`FrameworkOwnedRunnable` property, ensuring the documentation aligns
with the updated codebase.

* Replaces the legacy `Shutdown()` method with `Dispose()` to align
with the `IDisposable` pattern, ensuring proper resource cleanup
and simplifying the API. The `Dispose()` method is now the
recommended way to release resources, with `using` statements
encouraged for automatic disposal.

Key changes:
- Marked `Shutdown()` as obsolete; it now internally calls `Dispose()`.
- Updated the fluent API to remove `Shutdown()` from chaining.
- Enhanced session lifecycle management for thread safety.
- Updated tests to validate proper disposal and state reset.
- Improved `IRunnable` integration with automatic disposal for
  framework-created runnables.
- Maintained backward compatibility for the legacy static
  `Application` singleton.
- Refactored documentation and examples to reflect modern practices
  and emphasize `Dispose()` usage.

These changes modernize the `Terminal.Gui` lifecycle, improve
testability, and encourage alignment with .NET conventions.

* Refactor runnable app context handling in ApplicationImpl

Refactor how the application context is set for `runnable` objects
by introducing a new `SetApp` method in the `IRunnable` interface.
This replaces the previous logic of directly setting the `App`
property for `View` objects, making the process more generic and
encapsulated within `IRunnable` implementations.

Simplify `Mouse.UngrabMouse()` by removing the conditional check
and calling it unconditionally.

Make a minor formatting adjustment in the generic constraint of
`Run<TRunnable>` in `ApplicationImpl`.

Add `SetApp(IApplication app)` to the `IRunnable` interface and
implement it in the `Runnable` class to set the `App` property
to the provided application instance.

* Improve docs, tests, and modularity across the codebase

Reorganized and updated `CONTRIBUTING.md`:
- Added **Key Architecture Concepts** section and reordered the table of contents.
- Updated testing requirements to discourage legacy patterns.
- Added instructions for replicating CI workflows locally.
- Clarified PR guidelines and coding style expectations.

Enhanced `README.md` with detailed CI/CD workflow documentation.

Refactored `ColorPicker.Prompt` to use `IApplication` for improved modularity and testability.

Introduced `IApplicationScreenChangedTests` for comprehensive testing of `ScreenChanged` events and `Screen` property.

Refactored `ApplicationScreenTests` and `TextView.PromptForColors` to align with modern patterns.

Updated `Terminal.sln` to include `.github/workflows/README.md`.

Performed general cleanup:
- Removed outdated documentation links.
- Improved XML documentation and coding consistency.

* readme tweaks

* Improve thread safety, layout, and test coverage

Refactored `OutputBufferImpl.cs` to enhance thread safety by locking shared resources and adding bounds checks for columns and rows. Improved handling of wide characters and removed outdated TODO comments.

Updated `Runnable.cs` to call `SetNeedsDraw()` on modal state changes, ensuring proper layout and drawing updates. Simplified layout handling in `ApplicationImpl.Run.cs` by replacing redundant comments with a `LayoutAndDraw()` call.

Added a check in `AllViewsTester.cs` to skip creating instances of `RunnableWrapper` types with unsatisfiable generic constraints, logging a warning when encountered.

Enhanced `ListViewTests.cs` by adding explicit `app.LayoutAndDraw()` calls to validate visual output and ensure tests reflect the updated application state.

These changes improve robustness, prevent race conditions, and ensure consistent behavior across the application.

* Refactor: Rename Toplevel to Runnable and update logic

Updated the `Border` class to use `Command.Quit` instead of
`Command.QuitToplevel` in the `CloseButton.Accept` handler.

Renamed test methods in `GetViewsAtLocationTests.cs` to replace
"Toplevel" with "Runnable" for consistency. Updated `Runnable<bool>`
instances to use "topRunnable" as the `Id` property.

These changes align the codebase with updated naming conventions
and improve clarity.

* Removed `ToplevelTests` and migrated relevant test cases to
`MouseDragTests` with improved structure and coverage. Updated
tests to use `Application.Create`, `app.Begin`, and `app.End`
for better resource management and lifecycle handling.

Replaced direct event handling with `app.Mouse.RaiseMouseEvent`
to align with the application's event-handling mechanism. Added
`Runnable` objects to ensure views are properly initialized and
disposed of within the application context.

Enhanced tests to include assertions for minimum width and
height constraints during resize operations. Removed redundant
tests and streamlined logic to reduce duplication and improve
maintainability.

* Reorged Unit Test namespaces.

* more

* Refactor tests and update namespaces for consistency

Updated namespaces in `ArrangementTests.cs` and `MouseDragTests.cs` for better organization. Enhanced `ArrangementTests.cs` with additional checks for arrangement flags. Reformatted and re-added `MouseDragTests.cs` and `SchemeTests.cs` with modern C# features like nullable annotations and object initializers. Ensured no functional changes while improving code clarity and consistency.

* Fix nullability warnings in MouseDragTests.cs

Updated `app.End` calls to use the null-forgiving operator (`!`)
on `app.SessionStack` to ensure it is treated as non-null.
This change addresses potential nullability warnings and
improves code safety and clarity. Applied consistently across
all relevant test cases in the `MouseDragTests` class.
2025-12-01 12:54:21 -07:00