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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/canvas/CanvasRenderingContextHelper.h
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/canvas/CanvasRenderingContextHelper.h')
-rw-r--r--dom/canvas/CanvasRenderingContextHelper.h93
1 files changed, 93 insertions, 0 deletions
diff --git a/dom/canvas/CanvasRenderingContextHelper.h b/dom/canvas/CanvasRenderingContextHelper.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 http://mozilla.org/MPL/2.0/. */
+
+#ifndef MOZILLA_DOM_CANVASRENDERINGCONTEXTHELPER_H_
+#define MOZILLA_DOM_CANVASRENDERINGCONTEXTHELPER_H_
+
+#include "mozilla/dom/BindingDeclarations.h"
+#include "mozilla/layers/LayersTypes.h"
+#include "nsSize.h"
+
+class nsICanvasRenderingContextInternal;
+class nsIGlobalObject;
+
+namespace mozilla {
+
+class ErrorResult;
+
+namespace dom {
+
+class BlobCallback;
+class EncodeCompleteCallback;
+
+enum class CanvasContextType : uint8_t {
+ NoContext,
+ Canvas2D,
+ OffscreenCanvas2D,
+ WebGL1,
+ WebGL2,
+ WebGPU,
+ ImageBitmap
+};
+
+/**
+ * Povides common RenderingContext functionality used by both OffscreenCanvas
+ * and HTMLCanvasElement.
+ */
+class CanvasRenderingContextHelper {
+ public:
+ CanvasRenderingContextHelper();
+
+ virtual bool GetOpaqueAttr() = 0;
+
+ protected:
+ virtual nsresult UpdateContext(JSContext* aCx,
+ JS::Handle<JS::Value> aNewContextOptions,
+ ErrorResult& aRvForDictionaryInit);
+
+ virtual nsresult ParseParams(JSContext* aCx, const nsAString& aType,
+ const JS::Value& aEncoderOptions,
+ nsAString& outParams,
+ bool* const outCustomParseOptions);
+
+ void ToBlob(JSContext* aCx, nsIGlobalObject* global, BlobCallback& aCallback,
+ const nsAString& aType, JS::Handle<JS::Value> aParams,
+ bool aUsePlaceholder, ErrorResult& aRv);
+
+ void ToBlob(JSContext* aCx, EncodeCompleteCallback* aCallback,
+ const nsAString& aType, JS::Handle<JS::Value> aParams,
+ bool aUsePlaceholder, ErrorResult& aRv);
+
+ void ToBlob(EncodeCompleteCallback* aCallback, nsAString& aType,
+ const nsAString& aEncodeOptions, bool aUsingCustomOptions,
+ bool aUsePlaceholder, ErrorResult& aRv);
+
+ already_AddRefed<nsISupports> GetOrCreateContext(
+ JSContext* aCx, const nsAString& aContextId,
+ JS::Handle<JS::Value> aContextOptions, ErrorResult& aRv);
+
+ already_AddRefed<nsISupports> GetOrCreateContext(
+ JSContext* aCx, CanvasContextType aContextType,
+ JS::Handle<JS::Value> aContextOptions, ErrorResult& aRv);
+
+ virtual already_AddRefed<nsICanvasRenderingContextInternal> CreateContext(
+ CanvasContextType aContextType);
+
+ already_AddRefed<nsICanvasRenderingContextInternal> CreateContextHelper(
+ CanvasContextType aContextType, layers::LayersBackend aCompositorBackend);
+
+ virtual nsIntSize GetWidthHeight() = 0;
+
+ CanvasContextType mCurrentContextType;
+ nsCOMPtr<nsICanvasRenderingContextInternal> mCurrentContext;
+};
+
+} // namespace dom
+namespace CanvasUtils {
+bool GetCanvasContextType(const nsAString&, dom::CanvasContextType* const);
+} // namespace CanvasUtils
+} // namespace mozilla
+
+#endif // MOZILLA_DOM_CANVASRENDERINGCONTEXTHELPER_H_