servo/components/script/dom/offscreencanvasrenderingcontext2d.rs
sagudev c3fcefdc32
Let (Offscreen)RenderingContext implement CanvasContext (#36712)
this allows us to simplify canvas element/offscreen impl to only call
CanvasContext implementations (no more match statements).

This will help with impl more offscreen canvas contextl.

Testing: WPT and rustc

Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>
2025-04-30 18:52:57 +00:00

597 lines
19 KiB
Rust

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use crate::dom::bindings::codegen::GenericBindings::CanvasRenderingContext2DBinding::CanvasRenderingContext2D_Binding::CanvasRenderingContext2DMethods;
use crate::canvas_context::CanvasContext;
use crate::dom::bindings::codegen::UnionTypes::HTMLCanvasElementOrOffscreenCanvas;
use canvas_traits::canvas::Canvas2dMsg;
use dom_struct::dom_struct;
use snapshot::Snapshot;
use crate::dom::bindings::codegen::Bindings::CanvasRenderingContext2DBinding::{
CanvasDirection, CanvasFillRule, CanvasImageSource, CanvasLineCap, CanvasLineJoin,
CanvasTextAlign, CanvasTextBaseline,
};
use crate::dom::bindings::codegen::Bindings::OffscreenCanvasRenderingContext2DBinding::OffscreenCanvasRenderingContext2DMethods;
use crate::dom::bindings::codegen::UnionTypes::StringOrCanvasGradientOrCanvasPattern;
use crate::dom::bindings::error::{ErrorResult, Fallible};
use crate::dom::bindings::num::Finite;
use crate::dom::bindings::reflector::reflect_dom_object;
use crate::dom::bindings::root::DomRoot;
use crate::dom::bindings::str::DOMString;
use crate::dom::canvasgradient::CanvasGradient;
use crate::dom::canvaspattern::CanvasPattern;
use crate::dom::dommatrix::DOMMatrix;
use crate::dom::globalscope::GlobalScope;
use crate::dom::imagedata::ImageData;
use crate::dom::offscreencanvas::OffscreenCanvas;
use crate::dom::path2d::Path2D;
use crate::dom::textmetrics::TextMetrics;
use crate::script_runtime::CanGc;
use super::canvasrenderingcontext2d::CanvasRenderingContext2D;
#[dom_struct]
pub(crate) struct OffscreenCanvasRenderingContext2D {
context: CanvasRenderingContext2D,
}
impl OffscreenCanvasRenderingContext2D {
fn new_inherited(
global: &GlobalScope,
canvas: &OffscreenCanvas,
) -> OffscreenCanvasRenderingContext2D {
let size = canvas.get_size().cast();
OffscreenCanvasRenderingContext2D {
context: CanvasRenderingContext2D::new_inherited(
global,
HTMLCanvasElementOrOffscreenCanvas::OffscreenCanvas(DomRoot::from_ref(canvas)),
size,
),
}
}
pub(crate) fn new(
global: &GlobalScope,
canvas: &OffscreenCanvas,
can_gc: CanGc,
) -> DomRoot<OffscreenCanvasRenderingContext2D> {
let boxed = Box::new(OffscreenCanvasRenderingContext2D::new_inherited(
global, canvas,
));
reflect_dom_object(boxed, global, can_gc)
}
pub(crate) fn send_canvas_2d_msg(&self, msg: Canvas2dMsg) {
self.context.send_canvas_2d_msg(msg)
}
}
impl CanvasContext for OffscreenCanvasRenderingContext2D {
type ID = <CanvasRenderingContext2D as CanvasContext>::ID;
fn context_id(&self) -> Self::ID {
self.context.context_id()
}
fn canvas(&self) -> HTMLCanvasElementOrOffscreenCanvas {
self.context.canvas()
}
fn resize(&self) {
self.context.resize()
}
fn get_image_data(&self) -> Option<Snapshot> {
self.context.get_image_data()
}
fn origin_is_clean(&self) -> bool {
self.context.origin_is_clean()
}
}
impl OffscreenCanvasRenderingContext2DMethods<crate::DomTypeHolder>
for OffscreenCanvasRenderingContext2D
{
// https://html.spec.whatwg.org/multipage/offscreencontext2d-canvas
fn Canvas(&self) -> DomRoot<OffscreenCanvas> {
match self.context.canvas() {
HTMLCanvasElementOrOffscreenCanvas::OffscreenCanvas(canvas) => canvas,
_ => panic!("Should not be called from onscreen canvas"),
}
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-fillrect
fn FillRect(&self, x: f64, y: f64, width: f64, height: f64) {
self.context.FillRect(x, y, width, height);
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-clearrect
fn ClearRect(&self, x: f64, y: f64, width: f64, height: f64) {
self.context.ClearRect(x, y, width, height);
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-strokerect
fn StrokeRect(&self, x: f64, y: f64, width: f64, height: f64) {
self.context.StrokeRect(x, y, width, height);
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-shadowoffsetx
fn ShadowOffsetX(&self) -> f64 {
self.context.ShadowOffsetX()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-shadowoffsetx
fn SetShadowOffsetX(&self, value: f64) {
self.context.SetShadowOffsetX(value)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-shadowoffsety
fn ShadowOffsetY(&self) -> f64 {
self.context.ShadowOffsetY()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-shadowoffsety
fn SetShadowOffsetY(&self, value: f64) {
self.context.SetShadowOffsetY(value)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-shadowblur
fn ShadowBlur(&self) -> f64 {
self.context.ShadowBlur()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-shadowblur
fn SetShadowBlur(&self, value: f64) {
self.context.SetShadowBlur(value)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-shadowcolor
fn ShadowColor(&self) -> DOMString {
self.context.ShadowColor()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-shadowcolor
fn SetShadowColor(&self, value: DOMString, can_gc: CanGc) {
self.context.SetShadowColor(value, can_gc)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-strokestyle
fn StrokeStyle(&self) -> StringOrCanvasGradientOrCanvasPattern {
self.context.StrokeStyle()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-strokestyle
fn SetStrokeStyle(&self, value: StringOrCanvasGradientOrCanvasPattern, can_gc: CanGc) {
self.context.SetStrokeStyle(value, can_gc)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-strokestyle
fn FillStyle(&self) -> StringOrCanvasGradientOrCanvasPattern {
self.context.FillStyle()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-strokestyle
fn SetFillStyle(&self, value: StringOrCanvasGradientOrCanvasPattern, can_gc: CanGc) {
self.context.SetFillStyle(value, can_gc)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-createlineargradient
fn CreateLinearGradient(
&self,
x0: Finite<f64>,
y0: Finite<f64>,
x1: Finite<f64>,
y1: Finite<f64>,
can_gc: CanGc,
) -> DomRoot<CanvasGradient> {
self.context.CreateLinearGradient(x0, y0, x1, y1, can_gc)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-createradialgradient
fn CreateRadialGradient(
&self,
x0: Finite<f64>,
y0: Finite<f64>,
r0: Finite<f64>,
x1: Finite<f64>,
y1: Finite<f64>,
r1: Finite<f64>,
can_gc: CanGc,
) -> Fallible<DomRoot<CanvasGradient>> {
self.context
.CreateRadialGradient(x0, y0, r0, x1, y1, r1, can_gc)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-createpattern
fn CreatePattern(
&self,
image: CanvasImageSource,
repetition: DOMString,
can_gc: CanGc,
) -> Fallible<Option<DomRoot<CanvasPattern>>> {
self.context.CreatePattern(image, repetition, can_gc)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-save
fn Save(&self) {
self.context.Save()
}
#[cfg_attr(crown, allow(crown::unrooted_must_root))]
// https://html.spec.whatwg.org/multipage/#dom-context-2d-restore
fn Restore(&self) {
self.context.Restore()
}
/// <https://html.spec.whatwg.org/multipage/#dom-context-2d-reset>
fn Reset(&self) {
self.context.Reset()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-globalalpha
fn GlobalAlpha(&self) -> f64 {
self.context.GlobalAlpha()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-globalalpha
fn SetGlobalAlpha(&self, alpha: f64) {
self.context.SetGlobalAlpha(alpha)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-globalcompositeoperation
fn GlobalCompositeOperation(&self) -> DOMString {
self.context.GlobalCompositeOperation()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-globalcompositeoperation
fn SetGlobalCompositeOperation(&self, op_str: DOMString) {
self.context.SetGlobalCompositeOperation(op_str)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-imagesmoothingenabled
fn ImageSmoothingEnabled(&self) -> bool {
self.context.ImageSmoothingEnabled()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-imagesmoothingenabled
fn SetImageSmoothingEnabled(&self, value: bool) {
self.context.SetImageSmoothingEnabled(value)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-filltext
fn FillText(&self, text: DOMString, x: f64, y: f64, max_width: Option<f64>, can_gc: CanGc) {
self.context.FillText(text, x, y, max_width, can_gc)
}
// https://html.spec.whatwg.org/multipage/#textmetrics
fn MeasureText(&self, text: DOMString, can_gc: CanGc) -> DomRoot<TextMetrics> {
self.context.MeasureText(text, can_gc)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-font
fn Font(&self) -> DOMString {
self.context.Font()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-font
fn SetFont(&self, value: DOMString, can_gc: CanGc) {
self.context.SetFont(value, can_gc)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-textalign
fn TextAlign(&self) -> CanvasTextAlign {
self.context.TextAlign()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-textalign
fn SetTextAlign(&self, value: CanvasTextAlign) {
self.context.SetTextAlign(value)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-textbaseline
fn TextBaseline(&self) -> CanvasTextBaseline {
self.context.TextBaseline()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-textbaseline
fn SetTextBaseline(&self, value: CanvasTextBaseline) {
self.context.SetTextBaseline(value)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-direction
fn Direction(&self) -> CanvasDirection {
self.context.Direction()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-direction
fn SetDirection(&self, value: CanvasDirection) {
self.context.SetDirection(value)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-linewidth
fn LineWidth(&self) -> f64 {
self.context.LineWidth()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-linewidth
fn SetLineWidth(&self, width: f64) {
self.context.SetLineWidth(width)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-linecap
fn LineCap(&self) -> CanvasLineCap {
self.context.LineCap()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-linecap
fn SetLineCap(&self, cap: CanvasLineCap) {
self.context.SetLineCap(cap)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-linejoin
fn LineJoin(&self) -> CanvasLineJoin {
self.context.LineJoin()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-linejoin
fn SetLineJoin(&self, join: CanvasLineJoin) {
self.context.SetLineJoin(join)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-miterlimit
fn MiterLimit(&self) -> f64 {
self.context.MiterLimit()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-miterlimit
fn SetMiterLimit(&self, limit: f64) {
self.context.SetMiterLimit(limit)
}
/// <https://html.spec.whatwg.org/multipage/#dom-context-2d-setlinedash>
fn SetLineDash(&self, segments: Vec<f64>) {
self.context.SetLineDash(segments)
}
/// <https://html.spec.whatwg.org/multipage/#dom-context-2d-getlinedash>
fn GetLineDash(&self) -> Vec<f64> {
self.context.GetLineDash()
}
/// <https://html.spec.whatwg.org/multipage/#dom-context-2d-linedashoffset>
fn LineDashOffset(&self) -> f64 {
self.context.LineDashOffset()
}
/// <https://html.spec.whatwg.org/multipage/#dom-context-2d-linedashoffset>
fn SetLineDashOffset(&self, offset: f64) {
self.context.SetLineDashOffset(offset)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-createimagedata
fn CreateImageData(&self, sw: i32, sh: i32, can_gc: CanGc) -> Fallible<DomRoot<ImageData>> {
self.context.CreateImageData(sw, sh, can_gc)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-createimagedata
fn CreateImageData_(
&self,
imagedata: &ImageData,
can_gc: CanGc,
) -> Fallible<DomRoot<ImageData>> {
self.context.CreateImageData_(imagedata, can_gc)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-getimagedata
fn GetImageData(
&self,
sx: i32,
sy: i32,
sw: i32,
sh: i32,
can_gc: CanGc,
) -> Fallible<DomRoot<ImageData>> {
self.context.GetImageData(sx, sy, sw, sh, can_gc)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-putimagedata
fn PutImageData(&self, imagedata: &ImageData, dx: i32, dy: i32) {
self.context.PutImageData(imagedata, dx, dy)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-putimagedata
#[allow(unsafe_code)]
fn PutImageData_(
&self,
imagedata: &ImageData,
dx: i32,
dy: i32,
dirty_x: i32,
dirty_y: i32,
dirty_width: i32,
dirty_height: i32,
) {
self.context.PutImageData_(
imagedata,
dx,
dy,
dirty_x,
dirty_y,
dirty_width,
dirty_height,
)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-drawimage
fn DrawImage(&self, image: CanvasImageSource, dx: f64, dy: f64) -> ErrorResult {
self.context.DrawImage(image, dx, dy)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-drawimage
fn DrawImage_(
&self,
image: CanvasImageSource,
dx: f64,
dy: f64,
dw: f64,
dh: f64,
) -> ErrorResult {
self.context.DrawImage_(image, dx, dy, dw, dh)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-drawimage
fn DrawImage__(
&self,
image: CanvasImageSource,
sx: f64,
sy: f64,
sw: f64,
sh: f64,
dx: f64,
dy: f64,
dw: f64,
dh: f64,
) -> ErrorResult {
self.context
.DrawImage__(image, sx, sy, sw, sh, dx, dy, dw, dh)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-beginpath
fn BeginPath(&self) {
self.context.BeginPath()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-fill
fn Fill(&self, fill_rule: CanvasFillRule) {
self.context.Fill(fill_rule)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-fill
fn Fill_(&self, path: &Path2D, fill_rule: CanvasFillRule) {
self.context.Fill_(path, fill_rule)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-stroke
fn Stroke(&self) {
self.context.Stroke()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-stroke
fn Stroke_(&self, path: &Path2D) {
self.context.Stroke_(path)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-clip
fn Clip(&self, fill_rule: CanvasFillRule) {
self.context.Clip(fill_rule)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-clip
fn Clip_(&self, path: &Path2D, fill_rule: CanvasFillRule) {
self.context.Clip_(path, fill_rule)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-ispointinpath
fn IsPointInPath(&self, x: f64, y: f64, fill_rule: CanvasFillRule) -> bool {
self.context.IsPointInPath(x, y, fill_rule)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-ispointinpath
fn IsPointInPath_(&self, path: &Path2D, x: f64, y: f64, fill_rule: CanvasFillRule) -> bool {
self.context.IsPointInPath_(path, x, y, fill_rule)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-scale
fn Scale(&self, x: f64, y: f64) {
self.context.Scale(x, y)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-rotate
fn Rotate(&self, angle: f64) {
self.context.Rotate(angle)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-translate
fn Translate(&self, x: f64, y: f64) {
self.context.Translate(x, y)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-transform
fn Transform(&self, a: f64, b: f64, c: f64, d: f64, e: f64, f: f64) {
self.context.Transform(a, b, c, d, e, f)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-gettransform
fn GetTransform(&self, can_gc: CanGc) -> DomRoot<DOMMatrix> {
self.context.GetTransform(can_gc)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-settransform
fn SetTransform(&self, a: f64, b: f64, c: f64, d: f64, e: f64, f: f64) {
self.context.SetTransform(a, b, c, d, e, f)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-resettransform
fn ResetTransform(&self) {
self.context.ResetTransform()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-closepath
fn ClosePath(&self) {
self.context.ClosePath()
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-moveto
fn MoveTo(&self, x: f64, y: f64) {
self.context.MoveTo(x, y)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-lineto
fn LineTo(&self, x: f64, y: f64) {
self.context.LineTo(x, y)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-rect
fn Rect(&self, x: f64, y: f64, width: f64, height: f64) {
self.context.Rect(x, y, width, height)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-quadraticcurveto
fn QuadraticCurveTo(&self, cpx: f64, cpy: f64, x: f64, y: f64) {
self.context.QuadraticCurveTo(cpx, cpy, x, y)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-beziercurveto
fn BezierCurveTo(&self, cp1x: f64, cp1y: f64, cp2x: f64, cp2y: f64, x: f64, y: f64) {
self.context.BezierCurveTo(cp1x, cp1y, cp2x, cp2y, x, y)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-arc
fn Arc(&self, x: f64, y: f64, r: f64, start: f64, end: f64, ccw: bool) -> ErrorResult {
self.context.Arc(x, y, r, start, end, ccw)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-arcto
fn ArcTo(&self, cp1x: f64, cp1y: f64, cp2x: f64, cp2y: f64, r: f64) -> ErrorResult {
self.context.ArcTo(cp1x, cp1y, cp2x, cp2y, r)
}
// https://html.spec.whatwg.org/multipage/#dom-context-2d-ellipse
fn Ellipse(
&self,
x: f64,
y: f64,
rx: f64,
ry: f64,
rotation: f64,
start: f64,
end: f64,
ccw: bool,
) -> ErrorResult {
self.context
.Ellipse(x, y, rx, ry, rotation, start, end, ccw)
}
}