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This modification introduces a new layer to the painting process. The stacking context traversal no longer immediately calls the Gfx::Painter methods. Instead, it writes serialized painting commands into newly introduced RecordingPainter. Created list of commands is executed later to produce resulting bitmap. Producing painting command list will make it easier to add new optimizations: - It's simpler to check if the painting result is not visible in the viewport at the command level rather than during stacking context traversal. - Run painting in a separate thread. The painting thread can process serialized painting commands, while the main thread can work on the next paintable tree and safely invalidate the previous one. - As we consider GPU-accelerated painting support, it would be easier to back each painting command rather than constructing an alternative for the entire Gfx::Painter API.
68 lines
3.1 KiB
C++
68 lines
3.1 KiB
C++
/*
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* Copyright (c) 2023, Tim Flynn <trflynn89@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 <LibWeb/Forward.h>
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#include <LibWeb/HTML/HTMLMediaElement.h>
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#include <LibWeb/Painting/PaintableBox.h>
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#include <LibWeb/PixelUnits.h>
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namespace Web::Painting {
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class MediaPaintable : public PaintableBox {
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JS_CELL(MediaPaintable, PaintableBox);
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protected:
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explicit MediaPaintable(Layout::ReplacedBox const&);
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static Optional<DevicePixelPoint> mouse_position(PaintContext&, HTML::HTMLMediaElement const&);
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static void fill_triangle(RecordingPainter& painter, Gfx::IntPoint location, Array<Gfx::IntPoint, 3> coordinates, Color color);
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void paint_media_controls(PaintContext&, HTML::HTMLMediaElement const&, DevicePixelRect media_rect, Optional<DevicePixelPoint> const& mouse_position) const;
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private:
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struct Components {
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DevicePixelRect control_box_rect;
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DevicePixelRect playback_button_rect;
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DevicePixelRect timeline_rect;
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String timestamp;
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RefPtr<Gfx::Font> timestamp_font;
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DevicePixelRect timestamp_rect;
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DevicePixelRect speaker_button_rect;
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DevicePixels speaker_button_size;
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DevicePixelRect volume_rect;
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DevicePixelRect volume_scrub_rect;
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DevicePixels volume_button_size;
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};
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virtual bool wants_mouse_events() const override { return true; }
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virtual DispatchEventOfSameName handle_mousedown(Badge<EventHandler>, CSSPixelPoint, unsigned button, unsigned modifiers) override;
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virtual DispatchEventOfSameName handle_mouseup(Badge<EventHandler>, CSSPixelPoint, unsigned button, unsigned modifiers) override;
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virtual DispatchEventOfSameName handle_mousemove(Badge<EventHandler>, CSSPixelPoint, unsigned buttons, unsigned modifiers) override;
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Components compute_control_bar_components(PaintContext&, HTML::HTMLMediaElement const&, DevicePixelRect media_rect) const;
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static void paint_control_bar_playback_button(PaintContext&, HTML::HTMLMediaElement const&, Components const&, Optional<DevicePixelPoint> const& mouse_position);
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static void paint_control_bar_timeline(PaintContext&, HTML::HTMLMediaElement const&, Components const&);
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static void paint_control_bar_timestamp(PaintContext&, Components const&);
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static void paint_control_bar_speaker(PaintContext&, HTML::HTMLMediaElement const&, Components const& components, Optional<DevicePixelPoint> const& mouse_position);
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static void paint_control_bar_volume(PaintContext&, HTML::HTMLMediaElement const&, Components const&, Optional<DevicePixelPoint> const& mouse_position);
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enum class Temporary {
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Yes,
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No,
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};
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static void set_current_time(HTML::HTMLMediaElement& media_element, CSSPixelRect timeline_rect, CSSPixelPoint mouse_position, Temporary);
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static void set_volume(HTML::HTMLMediaElement& media_element, CSSPixelRect volume_rect, CSSPixelPoint mouse_position);
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static bool rect_is_hovered(HTML::HTMLMediaElement const& media_element, Optional<DevicePixelRect> const& rect, Optional<DevicePixelPoint> const& mouse_position, Optional<HTML::HTMLMediaElement::MouseTrackingComponent> const& allowed_mouse_tracking_component = {});
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};
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}
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