Prepare ui-graphics/ui-text for future upstreaming: extract skiko implementation into separate module#3126
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Prepare ui-graphics/ui-text for future upstreaming: extract skiko implementation into separate module#3126Ivan Matkov (MatkovIvan) wants to merge 4 commits into
Ivan Matkov (MatkovIvan) wants to merge 4 commits into
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Move the Skia-backed implementation of ui-graphics into a new :compose:ui:ui-skiko module, leaving ui-graphics' nonAndroidMain Skia-free. The common code keeps thin expect/actual delegators that resolve a registered ComposeUiGraphicsImplementation at runtime; the real org.jetbrains.skia code lives in ui-skiko's Skiko*Support classes. Source-set topology: commonMain -> nonAndroidMain (Skia-free) -> skikoMain (Skia compat) -> desktop/native/web leaves. - Canvas/Paint/Path/PathEffect/PathMeasure/PathIterator/ImageBitmap/ Matrices/GraphicsLayer/Blur/Rects relocate to ui-skiko as registry- backed delegators. - The Skia-holding expect-class actuals (Shader, ColorFilter, BlurEffect/OffsetEffect/RenderEffect) become Skiko-free via the PlatformBindings pattern: an opaque @InternalComposeUiApi Platform* binding in ui-graphics, implemented in ui-skiko. - Public Skia-interop extensions (skiaPaint, skiaImageFilter, asComposePath, ...) move to ui-skiko keeping their original package and @file:JvmName facade anchors, preserving desktop binary compatibility. Deprecated Skia-returning members that cannot be extensions delegate through a temporary SkikoGraphicsCompat registry. API baselines are regenerated in a later commit.
Move the Skia-backed implementation of ui-text into ui-skiko, leaving ui-text's nonAndroidMain Skia-free, mirroring the graphics extraction. ui-text keeps expect/actual delegators resolving a registered ComposeUiTextImplementation; the org.jetbrains.skia paragraph, font and text-paint code lives in ui-skiko. - Paragraph building, intrinsics, char helpers and the font subsystem (FontFamilyResolver, font loading, PlatformFont) relocate to ui-skiko. - The font subsystem is ui-text's own public API with per-platform loadTypeface actuals, so the unavoidable public Skia-typed surface stays in ui-text's skikoMain compat layer (Skia-free nonAndroidMain -> Skia skikoMain -> platform leaves); only the implementation moves. - ComposeUiSkikoRuntime.registerSkikoComposeImplementation() now wires both the graphics and text implementations (plus the temporary SkikoGraphicsCompat bridge). API baselines are regenerated in a later commit.
Wire registerSkikoComposeImplementation() into the Skiko-backed Compose entry points so the ui-graphics/ui-text registries are populated before any scene is created: desktop ComposePanel/ComposeWindowPanel, macOS ComposeWindow, iOS ComposeUIViewController, web ComposeWindowInternal, ImageComposeScene, and the ui-test rules. Adds the :compose:ui:ui-skiko dependency to the modules that rely on the Skiko backend transitively (ui, ui-test, ui-test-junit4, foundation) and registers in the affected test harnesses.
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Record the post-extraction public API. ui-graphics/ui-text baselines shrink by the relocation-only removals (the Skia-interop extensions and helpers now published from ui-skiko under identical package + facade names); no other public declarations change. Desktop binary compatibility is preserved through the @file:JvmName facade anchors and the HIDDEN split-facade shims in ui-skiko.
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CMP-9813 Extract
ui-graphics/ui-textskiko implementation intoui-skikomoduleCMP-9814 Runtime registration of
ui-skikoRelease Notes
N/A