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https://github.com/LadybirdBrowser/ladybird.git
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c403f8e92c
When clicking on the media timeline, compute the percentage along the timeline's width the user clicked, and set the playback time to the same percentage of the video's duration.
321 lines
15 KiB
C++
321 lines
15 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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#include <AK/Array.h>
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#include <AK/NumberFormat.h>
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#include <LibGUI/Event.h>
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#include <LibGfx/AntiAliasingPainter.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/HTML/HTMLMediaElement.h>
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#include <LibWeb/HTML/HTMLVideoElement.h>
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#include <LibWeb/Layout/VideoBox.h>
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#include <LibWeb/Painting/BorderRadiusCornerClipper.h>
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#include <LibWeb/Painting/InputColors.h>
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#include <LibWeb/Painting/VideoPaintable.h>
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namespace Web::Painting {
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static constexpr auto control_box_color = Gfx::Color::from_rgb(0x26'26'26);
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static constexpr auto control_highlight_color = Gfx::Color::from_rgb(0x1d'99'f3);
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static constexpr Gfx::Color control_button_color(bool is_hovered)
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{
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if (!is_hovered)
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return Color::White;
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return control_highlight_color;
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}
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JS::NonnullGCPtr<VideoPaintable> VideoPaintable::create(Layout::VideoBox const& layout_box)
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{
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return layout_box.heap().allocate_without_realm<VideoPaintable>(layout_box);
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}
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VideoPaintable::VideoPaintable(Layout::VideoBox const& layout_box)
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: PaintableBox(layout_box)
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{
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}
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Layout::VideoBox& VideoPaintable::layout_box()
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{
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return static_cast<Layout::VideoBox&>(layout_node());
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}
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Layout::VideoBox const& VideoPaintable::layout_box() const
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{
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return static_cast<Layout::VideoBox const&>(layout_node());
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}
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void VideoPaintable::paint(PaintContext& context, PaintPhase phase) const
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{
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if (!is_visible())
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return;
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// FIXME: This should be done at a different level.
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if (is_out_of_view(context))
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return;
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PaintableBox::paint(context, phase);
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if (phase != PaintPhase::Foreground)
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return;
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auto video_rect = context.rounded_device_rect(absolute_rect());
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context.painter().add_clip_rect(video_rect.to_type<int>());
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ScopedCornerRadiusClip corner_clip { context, context.painter(), video_rect, normalized_border_radii_data(ShrinkRadiiForBorders::Yes) };
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auto const& video_element = layout_box().dom_node();
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auto const& layout_mouse_position = video_element.layout_mouse_position({});
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Optional<DevicePixelPoint> mouse_position;
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if (layout_mouse_position.has_value() && document().hovered_node() == &video_element)
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mouse_position = context.rounded_device_point(*layout_mouse_position);
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auto paint_user_agent_controls = video_element.has_attribute(HTML::AttributeNames::controls);
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if (auto const& bitmap = layout_box().dom_node().current_frame()) {
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context.painter().draw_scaled_bitmap(video_rect.to_type<int>(), *bitmap, bitmap->rect(), 1.0f, to_gfx_scaling_mode(computed_values().image_rendering()));
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if (paint_user_agent_controls)
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paint_loaded_video_controls(context, video_element, video_rect, mouse_position);
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} else {
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auto input_colors = compute_input_colors(context.palette(), computed_values().accent_color());
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context.painter().fill_rect(video_rect.to_type<int>(), input_colors.light_gray);
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if (paint_user_agent_controls)
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paint_placeholder_video_controls(context, video_rect, mouse_position);
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}
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}
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void VideoPaintable::paint_loaded_video_controls(PaintContext& context, HTML::HTMLVideoElement const& video_element, DevicePixelRect video_rect, Optional<DevicePixelPoint> const& mouse_position) const
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{
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auto maximum_control_box_size = context.rounded_device_pixels(30);
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auto playback_padding = context.rounded_device_pixels(5);
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auto is_hovered = document().hovered_node() == &video_element;
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auto is_paused = video_element.paused();
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if (!is_hovered && !is_paused)
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return;
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auto control_box_rect = video_rect;
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if (control_box_rect.height() > maximum_control_box_size)
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control_box_rect.take_from_top(control_box_rect.height() - maximum_control_box_size);
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context.painter().fill_rect(control_box_rect.to_type<int>(), control_box_color.with_alpha(0xd0));
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layout_box().dom_node().cached_layout_boxes({}).control_box_rect = context.scale_to_css_rect(control_box_rect);
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control_box_rect = paint_control_bar_playback_button(context, video_element, control_box_rect, mouse_position);
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control_box_rect.take_from_left(playback_padding);
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control_box_rect = paint_control_bar_timeline(context, video_element, control_box_rect, mouse_position);
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control_box_rect.take_from_left(playback_padding);
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control_box_rect = paint_control_bar_timestamp(context, video_element, control_box_rect);
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control_box_rect.take_from_left(playback_padding);
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}
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DevicePixelRect VideoPaintable::paint_control_bar_playback_button(PaintContext& context, HTML::HTMLVideoElement const& video_element, DevicePixelRect control_box_rect, Optional<DevicePixelPoint> const& mouse_position) const
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{
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auto maximum_playback_button_size = context.rounded_device_pixels(15);
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auto maximum_playback_button_offset_x = context.rounded_device_pixels(15);
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auto playback_button_size = min(maximum_playback_button_size, control_box_rect.height() / 2);
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auto playback_button_offset_x = min(maximum_playback_button_offset_x, control_box_rect.width());
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auto playback_button_offset_y = (control_box_rect.height() - playback_button_size) / 2;
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auto playback_button_location = control_box_rect.top_left().translated(playback_button_offset_x, playback_button_offset_y);
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auto playback_button_hover_rect = DevicePixelRect {
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control_box_rect.top_left(),
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{ playback_button_size + playback_button_offset_x * 2, control_box_rect.height() }
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};
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layout_box().dom_node().cached_layout_boxes({}).playback_button_rect = context.scale_to_css_rect(playback_button_hover_rect);
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auto playback_button_is_hovered = mouse_position.has_value() && playback_button_hover_rect.contains(*mouse_position);
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auto playback_button_color = control_button_color(playback_button_is_hovered);
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if (video_element.paused()) {
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Array<Gfx::IntPoint, 3> play_button_coordinates { {
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{ 0, 0 },
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{ static_cast<int>(playback_button_size), static_cast<int>(playback_button_size) / 2 },
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{ 0, static_cast<int>(playback_button_size) },
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} };
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context.painter().draw_triangle(playback_button_location.to_type<int>(), play_button_coordinates, playback_button_color);
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} else {
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DevicePixelRect pause_button_left_rect {
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playback_button_location,
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{ maximum_playback_button_size / 3, playback_button_size }
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};
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DevicePixelRect pause_button_right_rect {
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playback_button_location.translated(maximum_playback_button_size * 2 / 3, 0),
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{ maximum_playback_button_size / 3, playback_button_size }
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};
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context.painter().fill_rect(pause_button_left_rect.to_type<int>(), playback_button_color);
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context.painter().fill_rect(pause_button_right_rect.to_type<int>(), playback_button_color);
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}
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control_box_rect.take_from_left(playback_button_hover_rect.width());
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return control_box_rect;
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}
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DevicePixelRect VideoPaintable::paint_control_bar_timeline(PaintContext& context, HTML::HTMLVideoElement const& video_element, DevicePixelRect control_box_rect, Optional<DevicePixelPoint> const& mouse_position) const
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{
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auto maximum_timeline_button_size = context.rounded_device_pixels(16);
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auto timeline_rect = control_box_rect;
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timeline_rect.set_width(min(control_box_rect.width() * 6 / 10, timeline_rect.width()));
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layout_box().dom_node().cached_layout_boxes({}).timeline_rect = context.scale_to_css_rect(timeline_rect);
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auto playback_percentage = video_element.current_time() / video_element.duration();
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auto playback_position = static_cast<double>(static_cast<int>(timeline_rect.width())) * playback_percentage;
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auto timeline_button_size = min(maximum_timeline_button_size, timeline_rect.height() / 2);
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auto timeline_button_offset_x = static_cast<DevicePixels>(round(playback_position));
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Gfx::AntiAliasingPainter painter { context.painter() };
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auto playback_timelime_scrub_rect = timeline_rect;
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playback_timelime_scrub_rect.shrink(0, timeline_rect.height() - timeline_button_size / 2);
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auto timeline_past_rect = playback_timelime_scrub_rect;
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timeline_past_rect.set_width(timeline_button_offset_x);
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painter.fill_rect_with_rounded_corners(timeline_past_rect.to_type<int>(), control_highlight_color.lightened(), 4);
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auto timeline_future_rect = playback_timelime_scrub_rect;
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timeline_future_rect.take_from_left(timeline_button_offset_x);
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painter.fill_rect_with_rounded_corners(timeline_future_rect.to_type<int>(), Color::Black, 4);
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auto timeline_button_rect = timeline_rect;
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timeline_button_rect.shrink(timeline_rect.width() - timeline_button_size, timeline_rect.height() - timeline_button_size);
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timeline_button_rect.set_x(timeline_rect.x() + timeline_button_offset_x - timeline_button_size / 2);
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auto timeline_is_hovered = mouse_position.has_value() && timeline_rect.contains(*mouse_position);
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auto timeline_color = control_button_color(timeline_is_hovered);
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painter.fill_ellipse(timeline_button_rect.to_type<int>(), timeline_color);
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control_box_rect.take_from_left(timeline_rect.width() + timeline_button_size / 2);
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return control_box_rect;
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}
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DevicePixelRect VideoPaintable::paint_control_bar_timestamp(PaintContext& context, HTML::HTMLVideoElement const& video_element, DevicePixelRect control_box_rect) const
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{
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auto current_time = human_readable_digital_time(round(video_element.current_time()));
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auto duration = human_readable_digital_time(round(video_element.duration()));
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auto timestamp = String::formatted("{} / {}", current_time, duration).release_value_but_fixme_should_propagate_errors();
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auto timestamp_size = static_cast<DevicePixels::Type>(ceilf(context.painter().font().width(timestamp)));
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if (timestamp_size > control_box_rect.width())
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return control_box_rect;
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auto timestamp_rect = control_box_rect;
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timestamp_rect.set_width(timestamp_size);
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context.painter().draw_text(timestamp_rect.to_type<int>(), timestamp, Gfx::TextAlignment::CenterLeft, Color::White);
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control_box_rect.take_from_left(timestamp_rect.width());
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return control_box_rect;
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}
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void VideoPaintable::paint_placeholder_video_controls(PaintContext& context, DevicePixelRect video_rect, Optional<DevicePixelPoint> const& mouse_position) const
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{
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auto maximum_control_box_size = context.rounded_device_pixels(100);
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auto maximum_playback_button_size = context.rounded_device_pixels(40);
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auto center = video_rect.center();
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auto control_box_size = min(maximum_control_box_size, min(video_rect.width(), video_rect.height()) * 4 / 5);
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auto control_box_offset_x = control_box_size / 2;
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auto control_box_offset_y = control_box_size / 2;
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auto control_box_location = center.translated(-control_box_offset_x, -control_box_offset_y);
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DevicePixelRect control_box_rect { control_box_location, { control_box_size, control_box_size } };
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auto playback_button_size = min(maximum_playback_button_size, min(video_rect.width(), video_rect.height()) * 2 / 5);
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auto playback_button_offset_x = playback_button_size / 2;
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auto playback_button_offset_y = playback_button_size / 2;
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// We want to center the play button on its center of mass, which is not the midpoint of its vertices.
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// To do so, reduce its desired x offset by a factor of tan(30 degrees) / 2 (about 0.288685).
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playback_button_offset_x -= 0.288685f * static_cast<float>(static_cast<DevicePixels::Type>(playback_button_offset_x));
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auto playback_button_location = center.translated(-playback_button_offset_x, -playback_button_offset_y);
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Array<Gfx::IntPoint, 3> play_button_coordinates { {
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{ 0, 0 },
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{ static_cast<int>(playback_button_size), static_cast<int>(playback_button_size) / 2 },
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{ 0, static_cast<int>(playback_button_size) },
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} };
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auto playback_button_is_hovered = mouse_position.has_value() && control_box_rect.contains(*mouse_position);
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auto playback_button_color = control_button_color(playback_button_is_hovered);
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Gfx::AntiAliasingPainter painter { context.painter() };
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painter.fill_ellipse(control_box_rect.to_type<int>(), control_box_color);
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context.painter().draw_triangle(playback_button_location.to_type<int>(), play_button_coordinates, playback_button_color);
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}
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VideoPaintable::DispatchEventOfSameName VideoPaintable::handle_mouseup(Badge<EventHandler>, CSSPixelPoint position, unsigned button, unsigned)
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{
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if (button != GUI::MouseButton::Primary)
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return DispatchEventOfSameName::No;
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auto& video_element = layout_box().dom_node();
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auto const& cached_layout_boxes = video_element.cached_layout_boxes({});
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// FIXME: This runs from outside the context of any user script, so we do not have a running execution
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// context. This pushes one to allow the promise creation hook to run.
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auto& environment_settings = document().relevant_settings_object();
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environment_settings.prepare_to_run_script();
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ScopeGuard guard { [&] { environment_settings.clean_up_after_running_script(); } };
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auto toggle_playback = [&]() -> WebIDL::ExceptionOr<void> {
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if (video_element.paused())
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TRY(video_element.play());
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else
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TRY(video_element.pause());
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return {};
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};
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if (cached_layout_boxes.control_box_rect.has_value() && cached_layout_boxes.control_box_rect->contains(position)) {
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if (cached_layout_boxes.playback_button_rect.has_value() && cached_layout_boxes.playback_button_rect->contains(position)) {
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toggle_playback().release_value_but_fixme_should_propagate_errors();
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return DispatchEventOfSameName::Yes;
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}
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if (cached_layout_boxes.timeline_rect.has_value() && cached_layout_boxes.timeline_rect->contains(position)) {
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auto x_offset = position.x() - cached_layout_boxes.timeline_rect->x();
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auto x_percentage = static_cast<float>(x_offset) / static_cast<float>(cached_layout_boxes.timeline_rect->width());
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auto position = static_cast<double>(x_percentage) * video_element.duration();
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video_element.set_current_time(position);
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return DispatchEventOfSameName::Yes;
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}
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return DispatchEventOfSameName::No;
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}
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toggle_playback().release_value_but_fixme_should_propagate_errors();
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return DispatchEventOfSameName::Yes;
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}
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VideoPaintable::DispatchEventOfSameName VideoPaintable::handle_mousemove(Badge<EventHandler>, CSSPixelPoint position, unsigned, unsigned)
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{
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auto& video_element = layout_box().dom_node();
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if (absolute_rect().contains(position)) {
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video_element.set_layout_mouse_position({}, position);
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return DispatchEventOfSameName::Yes;
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}
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video_element.set_layout_mouse_position({}, {});
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return DispatchEventOfSameName::No;
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}
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}
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