feat: support getContextAttributes

Brooooooklyn · Jan 28, 2021 · 4c0586b · 4c0586b
1 parent 17a8d01
commit 4c0586b
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Showing 3 changed files with 17 additions and 2 deletions.
diff --git a/__test__/draw.spec.ts b/__test__/draw.spec.ts
@@ -284,7 +284,12 @@ test('fillRect', async (t) => {
 
 test.todo('fillText')
 
-test.todo('getContextAttributes')
+test('getContextAttributes', (t) => {
+  const { ctx } = t.context
+  const attributes = ctx.getContextAttributes()
+  t.is(attributes.alpha, true)
+  t.is(attributes.desynchronized, false)
+})
 
 test('getImageData', async (t) => {
   const { ctx } = t.context
@@ -314,7 +319,7 @@ test('isPointInPath', (t) => {
   t.is(ctx.isPointInPath(path, 50, 1), true)
 
   path.rect(40, 40, 20, 20)
-  t.is(ctx.isPointInPath(50, 50), true)
+  t.is(ctx.isPointInPath(path, 50, 50), true)
   t.is(ctx.isPointInPath(path, 50, 50, 'nonzero'), true)
   t.is(ctx.isPointInPath(path, 50, 50, 'evenodd'), false)
 })

diff --git a/index.d.ts b/index.d.ts
@@ -73,6 +73,7 @@ export interface SKRSContext2D extends Omit<CanvasRenderingContext2D, 'drawImage
     dw: number,
     dh: number,
   ): void
+  getContextAttributes(): { alpha: boolean; desynchronized: boolean }
 }
 
 export interface Canvas extends Omit<HTMLCanvasElement, 'getContext'> {

diff --git a/src/ctx.rs b/src/ctx.rs
@@ -91,6 +91,7 @@ impl Context {
         Property::new(&env, "createLinearGradient")?.with_method(create_linear_gradient),
         Property::new(&env, "createRadialGradient")?.with_method(create_radial_gradient),
         Property::new(&env, "drawImage")?.with_method(draw_image),
+        Property::new(&env, "getContextAttributes")?.with_method(get_context_attributes),
         Property::new(&env, "isPointInPath")?.with_method(is_point_in_path),
         Property::new(&env, "isPointInStroke")?.with_method(is_point_in_stroke),
         Property::new(&env, "ellipse")?.with_method(ellipse),
@@ -685,6 +686,14 @@ fn draw_image(ctx: CallContext) -> Result<JsUndefined> {
   ctx.env.get_undefined()
 }
 
+#[js_function]
+fn get_context_attributes(ctx: CallContext) -> Result<JsObject> {
+  let mut obj = ctx.env.create_object()?;
+  obj.set_named_property("alpha", ctx.env.get_boolean(true)?)?;
+  obj.set_named_property("desynchronized", ctx.env.get_boolean(false)?)?;
+  Ok(obj)
+}
+
 #[js_function(4)]
 fn is_point_in_path(ctx: CallContext) -> Result<JsBoolean> {
   let this = ctx.this_unchecked::<JsObject>();