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https://github.com/RGBCube/serenity
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3110f5b328
This patch replaces the bespoke rendering engine in Presenter with a simple pipeline that turns presentations into single-page HTML files. The HTML is then loaded into an OutOfProcessWebView. This achieves a number of things, most importantly: - Access to all the CSS features supported by LibWeb - Sandboxed, multi-process rendering The code could be simplified a lot further, but I wanted to get the new architecture in place without changing anything about the file format.
81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
/*
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* Copyright (c) 2022, kleines Filmröllchen <filmroellchen@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibGfx/Color.h>
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#include <LibGfx/Font/FontDatabase.h>
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#include <LibGfx/Rect.h>
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class Presentation;
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struct HTMLElement {
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StringView tag_name;
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HashMap<StringView, DeprecatedString> attributes;
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HashMap<StringView, DeprecatedString> style;
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DeprecatedString inner_text;
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Vector<HTMLElement> children;
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ErrorOr<void> serialize(StringBuilder&) const;
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};
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// Anything that can be on a slide.
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class SlideObject : public RefCounted<SlideObject> {
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public:
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virtual ~SlideObject() = default;
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static ErrorOr<NonnullRefPtr<SlideObject>> parse_slide_object(JsonObject const& slide_object_json);
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virtual ErrorOr<HTMLElement> render(Presentation const&) const = 0;
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protected:
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SlideObject() = default;
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virtual void set_property(StringView name, JsonValue);
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HashMap<DeprecatedString, JsonValue> m_properties;
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Gfx::IntRect m_rect;
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};
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// Objects with a foreground color.
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class GraphicsObject : public SlideObject {
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public:
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virtual ~GraphicsObject() = default;
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protected:
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GraphicsObject() = default;
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virtual void set_property(StringView name, JsonValue) override;
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// FIXME: Change the default color based on the color scheme
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Gfx::Color m_color { Gfx::Color::Black };
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};
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class Text final : public GraphicsObject {
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public:
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Text() = default;
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virtual ~Text() = default;
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private:
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virtual ErrorOr<HTMLElement> render(Presentation const&) const override;
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virtual void set_property(StringView name, JsonValue) override;
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DeprecatedString m_text;
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DeprecatedString m_font_family;
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DeprecatedString m_text_align;
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float m_font_size_in_pt { 18 };
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unsigned m_font_weight { Gfx::FontWeight::Regular };
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};
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class Image final : public SlideObject {
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public:
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Image() = default;
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virtual ~Image() = default;
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private:
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DeprecatedString m_src;
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StringView m_image_rendering;
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virtual ErrorOr<HTMLElement> render(Presentation const&) const override;
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virtual void set_property(StringView name, JsonValue) override;
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};
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