LibWeb: Add ImageData objects and implement 2D context putImageData()

An ImageData is a wrapper around a Bitmap wrapper around a
JS::Uint8ClampedArray.

1 files changed, 55 insertions, 0 deletions

diff --git a/Libraries/LibWeb/Bindings/ImageDataWrapper.h b/Libraries/LibWeb/Bindings/ImageDataWrapper.h
new file mode 100644
index 0000000000..99552553fd
--- /dev/null
+++ b/Libraries/LibWeb/Bindings/ImageDataWrapper.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <LibWeb/Bindings/Wrapper.h>
+
+namespace Web {
+namespace Bindings {
+
+class ImageDataWrapper : public Wrapper {
+public:
+    explicit ImageDataWrapper(ImageData&);
+    virtual ~ImageDataWrapper() override;
+
+    ImageData& impl() { return m_impl; }
+    const ImageData& impl() const { return m_impl; }
+
+private:
+    virtual const char* class_name() const override { return "ImageDataWrapper"; }
+
+    static JS::Value width_getter(JS::Interpreter&);
+    static JS::Value height_getter(JS::Interpreter&);
+    static JS::Value data_getter(JS::Interpreter&);
+
+    NonnullRefPtr<ImageData> m_impl;
+};
+
+ImageDataWrapper* wrap(JS::Heap&, ImageData&);
+
+}
+}