Move more parts to libraries.

ci/licenses_golden/licenses_flutter

@@ -517,6 +517,7 @@ FILE: ../../../flutter/lib/web_ui/lib/src/engine/html/shader_mask.dart
 FILE: ../../../flutter/lib/web_ui/lib/src/engine/html/shaders/normalized_gradient.dart
 FILE: ../../../flutter/lib/web_ui/lib/src/engine/html/shaders/shader.dart
 FILE: ../../../flutter/lib/web_ui/lib/src/engine/html/shaders/shader_builder.dart
+FILE: ../../../flutter/lib/web_ui/lib/src/engine/html/shaders/vertex_shaders.dart
 FILE: ../../../flutter/lib/web_ui/lib/src/engine/html/surface.dart
 FILE: ../../../flutter/lib/web_ui/lib/src/engine/html/surface_stats.dart
 FILE: ../../../flutter/lib/web_ui/lib/src/engine/html/transform.dart

lib/web_ui/lib/src/engine.dart

@@ -38,6 +38,12 @@ export 'engine/alarm_clock.dart';
 import 'engine/browser_detection.dart';
 export 'engine/browser_detection.dart';
 
+import 'engine/html_image_codec.dart';
+export 'engine/html_image_codec.dart';
+
+import 'engine/html/painting.dart';
+export 'engine/html/painting.dart';
+
 import 'engine/html/path_to_svg_clip.dart';
 export 'engine/html/path_to_svg_clip.dart';
 
@@ -56,9 +62,27 @@ export 'engine/html/path/path_metrics.dart';
 import 'engine/html/path/path_ref.dart';
 export 'engine/html/path/path_ref.dart';
 
+import 'engine/html/path/path_to_svg.dart';
+export 'engine/html/path/path_to_svg.dart';
+
 import 'engine/html/path/path_utils.dart';
 export 'engine/html/path/path_utils.dart';
 
+import 'engine/html/path/path_windings.dart';
+export 'engine/html/path/path_windings.dart';
+
+import 'engine/html/path/tangent.dart';
+export 'engine/html/path/tangent.dart';
+
+import 'engine/html/shaders/normalized_gradient.dart';
+export 'engine/html/shaders/normalized_gradient.dart';
+
+import 'engine/html/shaders/shader_builder.dart';
+export 'engine/html/shaders/shader_builder.dart';
+
+import 'engine/html/shaders/vertex_shaders.dart';
+export 'engine/html/shaders/vertex_shaders.dart';
+
 import 'engine/mouse_cursor.dart';
 export 'engine/mouse_cursor.dart';
 
@@ -155,6 +179,7 @@ part 'engine/color_filter.dart';
 part 'engine/dom_canvas.dart';
 part 'engine/dom_renderer.dart';
 part 'engine/engine_canvas.dart';
+part 'engine/font_change_util.dart';
 part 'engine/frame_reference.dart';
 part 'engine/html/backdrop_filter.dart';
 part 'engine/html/canvas.dart';
@@ -164,25 +189,18 @@ part 'engine/html/debug_canvas_reuse_overlay.dart';
 part 'engine/html/image_filter.dart';
 part 'engine/html/offset.dart';
 part 'engine/html/opacity.dart';
-part 'engine/html/painting.dart';
 part 'engine/html/path/path.dart';
-part 'engine/html/path/path_to_svg.dart';
-part 'engine/html/path/path_windings.dart';
-part 'engine/html/path/tangent.dart';
 part 'engine/html/picture.dart';
 part 'engine/html/platform_view.dart';
 part 'engine/html/recording_canvas.dart';
 part 'engine/html/render_vertices.dart';
 part 'engine/html/scene.dart';
 part 'engine/html/scene_builder.dart';
 part 'engine/html/shader_mask.dart';
-part 'engine/html/shaders/normalized_gradient.dart';
 part 'engine/html/shaders/shader.dart';
-part 'engine/html/shaders/shader_builder.dart';
 part 'engine/html/surface.dart';
 part 'engine/html/surface_stats.dart';
 part 'engine/html/transform.dart';
-part 'engine/html_image_codec.dart';
 part 'engine/keyboard_binding.dart';
 part 'engine/keyboard.dart';
 part 'engine/key_map.dart';
@@ -219,7 +237,6 @@ part 'engine/text_editing/autofill_hint.dart';
 part 'engine/text_editing/input_type.dart';
 part 'engine/text_editing/text_capitalization.dart';
 part 'engine/text_editing/text_editing.dart';
-part 'engine/font_change_util.dart';
 part 'engine/window.dart';
 
 // The mode the app is running in.

lib/web_ui/lib/src/engine/bitmap_canvas.dart

@@ -963,7 +963,7 @@ class BitmapCanvas extends EngineCanvas {
     // blendMode. https://github.com/flutter/flutter/issues/40096
     // Move rendering to OffscreenCanvas so that transform is preserved
     // as well.
-    assert(paint.shader == null || paint.shader is ImageShader,
+    assert(paint.shader == null || paint.shader is EngineImageShader,
         'Linear/Radial/SweepGradient not supported yet');
     final Int32List? colors = vertices._colors;
     final ui.VertexMode mode = vertices._mode;

lib/web_ui/lib/src/engine/dom_canvas.dart

@@ -267,7 +267,7 @@ html.Element _pathToSvgElement(SurfacePath path, SurfacePaintData paint,
     sb.write('fill-rule="evenodd" ');
   }
   sb.write('d="');
-  pathToSvg(path, sb);
+  pathToSvg(path.pathRef, sb);
   sb.write('"></path>');
   sb.write('</svg>');
   return html.Element.html(sb.toString(), treeSanitizer: _NullTreeSanitizer());

lib/web_ui/lib/src/engine/html/painting.dart

@@ -2,7 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-part of engine;
+import 'package:ui/ui.dart' as ui;
+
+import '../util.dart';
 
 /// Implementation of [ui.Paint] used by the HTML rendering backend.
 class SurfacePaint implements ui.Paint {

lib/web_ui/lib/src/engine/html/path/path_to_svg.dart

@@ -2,13 +2,19 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-part of engine;
+import 'dart:typed_data';
+
+import 'package:ui/ui.dart' as ui;
+
+import 'conic.dart';
+import 'path_ref.dart';
+import 'path_utils.dart';
 
 /// Converts [path] to SVG path syntax to be used as "d" attribute in path
 /// element.
-void pathToSvg(SurfacePath path, StringBuffer sb,
+void pathToSvg(PathRef pathRef, StringBuffer sb,
     {double offsetX = 0, double offsetY = 0}) {
-  final PathRefIterator iter = PathRefIterator(path.pathRef);
+  final PathRefIterator iter = PathRefIterator(pathRef);
   int verb = 0;
   final Float32List outPts = Float32List(PathRefIterator.kMaxBufferSize);
   while ((verb = iter.next(outPts)) != SPath.kDoneVerb) {

lib/web_ui/lib/src/engine/html/path/path_windings.dart

@@ -2,7 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-part of engine;
+import 'dart:math' as math;
+import 'dart:typed_data';
+
+import 'conic.dart';
+import 'cubic.dart';
+import 'path_iterator.dart';
+import 'path_ref.dart';
+import 'path_utils.dart';
 
 /// Computes winding number and onCurveCount for a path and point.
 class PathWinding {

lib/web_ui/lib/src/engine/html/path/tangent.dart

@@ -2,7 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-part of engine;
+import 'dart:typed_data';
+
+import 'package:ui/ui.dart' as ui;
+
+import 'conic.dart';
+import 'cubic.dart';
+import 'path_utils.dart';
 
 /// Computes tangent at point x,y on a line.
 void tangentLine(

lib/web_ui/lib/src/engine/html/path_to_svg_clip.dart

@@ -43,7 +43,7 @@ String pathToSvgClipPath(ui.Path path,
     sb.write('<path transform="scale($scaleX, $scaleY)" fill="#FFFFFF" d="');
   }
 
-  pathToSvg(path as SurfacePath, sb, offsetX: offsetX, offsetY: offsetY);
+  pathToSvg((path as SurfacePath).pathRef, sb, offsetX: offsetX, offsetY: offsetY);
   sb.write('"></path></clipPath></defs></svg');
   return sb.toString();
 }

lib/web_ui/lib/src/engine/html/recording_canvas.dart

@@ -321,7 +321,7 @@ class RecordingCanvas {
 
   void drawLine(ui.Offset p1, ui.Offset p2, SurfacePaint paint) {
     assert(!_recordingEnded);
-    assert(paint.shader == null || paint.shader is! ImageShader, 'ImageShader not supported yet');
+    assert(paint.shader == null || paint.shader is! EngineImageShader, 'ImageShader not supported yet');
     final double paintSpread = math.max(_getPaintSpread(paint), 1.0);
     final PaintDrawLine command = PaintDrawLine(p1, p2, paint.paintData);
     // TODO(yjbanov): This can be optimized. Currently we create a box around
@@ -345,7 +345,7 @@ class RecordingCanvas {
 
   void drawPaint(SurfacePaint paint) {
     assert(!_recordingEnded);
-    assert(paint.shader == null || paint.shader is! ImageShader, 'ImageShader not supported yet');
+    assert(paint.shader == null || paint.shader is! EngineImageShader, 'ImageShader not supported yet');
     renderStrategy.hasArbitraryPaint = true;
     _didDraw = true;
     final PaintDrawPaint command = PaintDrawPaint(paint.paintData);
@@ -355,7 +355,7 @@ class RecordingCanvas {
 
   void drawRect(ui.Rect rect, SurfacePaint paint) {
     assert(!_recordingEnded);
-    assert(paint.shader == null || paint.shader is! ImageShader, 'ImageShader not supported yet');
+    assert(paint.shader == null || paint.shader is! EngineImageShader, 'ImageShader not supported yet');
     if (paint.shader != null) {
       renderStrategy.hasArbitraryPaint = true;
     }
@@ -372,7 +372,7 @@ class RecordingCanvas {
 
   void drawRRect(ui.RRect rrect, SurfacePaint paint) {
     assert(!_recordingEnded);
-    assert(paint.shader == null || paint.shader is! ImageShader, 'ImageShader not supported yet');
+    assert(paint.shader == null || paint.shader is! EngineImageShader, 'ImageShader not supported yet');
     if (paint.shader != null || !rrect.webOnlyUniformRadii) {
       renderStrategy.hasArbitraryPaint = true;
     }
@@ -389,7 +389,7 @@ class RecordingCanvas {
 
   void drawDRRect(ui.RRect outer, ui.RRect inner, SurfacePaint paint) {
     assert(!_recordingEnded);
-    assert(paint.shader == null || paint.shader is! ImageShader, 'ImageShader not supported yet');
+    assert(paint.shader == null || paint.shader is! EngineImageShader, 'ImageShader not supported yet');
     // Check the inner bounds are contained within the outer bounds
     // see: https://cs.chromium.org/chromium/src/third_party/skia/src/core/SkCanvas.cpp?l=1787-1789
     ui.Rect innerRect = inner.outerRect;
@@ -448,7 +448,7 @@ class RecordingCanvas {
 
   void drawOval(ui.Rect rect, SurfacePaint paint) {
     assert(!_recordingEnded);
-    assert(paint.shader == null || paint.shader is! ImageShader, 'ImageShader not supported yet');
+    assert(paint.shader == null || paint.shader is! EngineImageShader, 'ImageShader not supported yet');
     renderStrategy.hasArbitraryPaint = true;
     _didDraw = true;
     final double paintSpread = _getPaintSpread(paint);
@@ -463,7 +463,7 @@ class RecordingCanvas {
 
   void drawCircle(ui.Offset c, double radius, SurfacePaint paint) {
     assert(!_recordingEnded);
-    assert(paint.shader == null || paint.shader is! ImageShader, 'ImageShader not supported yet');
+    assert(paint.shader == null || paint.shader is! EngineImageShader, 'ImageShader not supported yet');
     renderStrategy.hasArbitraryPaint = true;
     _didDraw = true;
     final double paintSpread = _getPaintSpread(paint);
@@ -481,7 +481,7 @@ class RecordingCanvas {
 
   void drawPath(ui.Path path, SurfacePaint paint) {
     assert(!_recordingEnded);
-    assert(paint.shader == null || paint.shader is! ImageShader, 'ImageShader not supported yet');
+    assert(paint.shader == null || paint.shader is! EngineImageShader, 'ImageShader not supported yet');
     if (paint.shader == null) {
       // For Rect/RoundedRect paths use drawRect/drawRRect code paths for
       // DomCanvas optimization.
@@ -518,7 +518,7 @@ class RecordingCanvas {
 
   void drawImage(ui.Image image, ui.Offset offset, SurfacePaint paint) {
     assert(!_recordingEnded);
-    assert(paint.shader == null || paint.shader is! ImageShader, 'ImageShader not supported yet');
+    assert(paint.shader == null || paint.shader is! EngineImageShader, 'ImageShader not supported yet');
     renderStrategy.hasArbitraryPaint = true;
     renderStrategy.hasImageElements = true;
     _didDraw = true;
@@ -556,7 +556,7 @@ class RecordingCanvas {
   void drawImageRect(
       ui.Image image, ui.Rect src, ui.Rect dst, SurfacePaint paint) {
     assert(!_recordingEnded);
-    assert(paint.shader == null || paint.shader is! ImageShader, 'ImageShader not supported yet');
+    assert(paint.shader == null || paint.shader is! EngineImageShader, 'ImageShader not supported yet');
     renderStrategy.hasArbitraryPaint = true;
     renderStrategy.hasImageElements = true;
     _didDraw = true;