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/*
* Copyright (c) 2022, Gregory Bertilson <zaggy1024@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibGUI/Action.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/FilePicker.h>
#include <LibGUI/ImageWidget.h>
#include <LibGUI/Label.h>
#include <LibGUI/MessageBox.h>
#include <LibGUI/SeparatorWidget.h>
#include <LibGUI/Slider.h>
#include <LibGUI/Toolbar.h>
#include <LibGUI/ToolbarContainer.h>
#include <LibGUI/Window.h>
#include "VideoPlayerWidget.h"
namespace VideoPlayer {
VideoPlayerWidget::VideoPlayerWidget(GUI::Window& window)
: m_window(window)
{
set_fill_with_background_color(true);
set_layout<GUI::VerticalBoxLayout>();
m_video_display = add<VideoFrameWidget>();
m_video_display->set_auto_resize(false);
m_video_display->on_click = [&]() { toggle_pause(); };
auto& player_controls_widget = add<GUI::Widget>();
player_controls_widget.set_layout<GUI::VerticalBoxLayout>();
player_controls_widget.set_max_height(50);
m_seek_slider = player_controls_widget.add<GUI::HorizontalSlider>();
m_seek_slider->set_fixed_height(20);
m_seek_slider->set_enabled(false);
auto& toolbar_container = player_controls_widget.add<GUI::ToolbarContainer>();
m_toolbar = toolbar_container.add<GUI::Toolbar>();
m_play_icon = Gfx::Bitmap::try_load_from_file("/res/icons/16x16/play.png"sv).release_value_but_fixme_should_propagate_errors();
m_pause_icon = Gfx::Bitmap::try_load_from_file("/res/icons/16x16/pause.png"sv).release_value_but_fixme_should_propagate_errors();
m_play_pause_action = GUI::Action::create("Play", { Key_Space }, m_play_icon, [&](auto&) {
toggle_pause();
});
m_cycle_sizing_modes_action = GUI::Action::create("Sizing", [&](auto&) {
cycle_sizing_modes();
});
m_toolbar->add_action(*m_play_pause_action);
m_toolbar->add<GUI::VerticalSeparator>();
m_timestamp_label = m_toolbar->add<GUI::Label>();
m_timestamp_label->set_fixed_width(50);
m_toolbar->add<GUI::Widget>(); // Filler widget
m_toolbar->add_action(*m_cycle_sizing_modes_action);
m_toolbar->add<GUI::VerticalSeparator>();
m_volume_slider = m_toolbar->add<GUI::HorizontalSlider>();
m_volume_slider->set_min(0);
m_volume_slider->set_max(100);
m_volume_slider->set_fixed_width(100);
}
void VideoPlayerWidget::close_file()
{
if (m_playback_manager)
m_playback_manager = nullptr;
}
void VideoPlayerWidget::open_file(StringView filename)
{
auto load_file_result = Video::PlaybackManager::from_file(*this, filename);
if (load_file_result.is_error()) {
on_decoding_error(load_file_result.release_error());
return;
}
m_path = filename;
update_title();
close_file();
m_playback_manager = load_file_result.release_value();
resume_playback();
}
void VideoPlayerWidget::update_play_pause_icon()
{
if (!m_playback_manager) {
m_play_pause_action->set_enabled(false);
m_play_pause_action->set_icon(m_play_icon);
return;
}
m_play_pause_action->set_enabled(true);
if (m_playback_manager->is_playing() || m_playback_manager->is_buffering())
m_play_pause_action->set_icon(m_pause_icon);
else
m_play_pause_action->set_icon(m_play_icon);
}
void VideoPlayerWidget::resume_playback()
{
if (!m_playback_manager)
return;
m_playback_manager->resume_playback();
update_play_pause_icon();
}
void VideoPlayerWidget::pause_playback()
{
if (!m_playback_manager)
return;
m_playback_manager->pause_playback();
update_play_pause_icon();
}
void VideoPlayerWidget::toggle_pause()
{
if (!m_playback_manager)
return;
if (m_playback_manager->is_playing() || m_playback_manager->is_buffering())
pause_playback();
else
resume_playback();
}
void VideoPlayerWidget::on_decoding_error(Video::DecoderError const& error)
{
StringView text_format;
switch (error.category()) {
case Video::DecoderErrorCategory::IO:
text_format = "Error while reading video:\n{}"sv;
break;
case Video::DecoderErrorCategory::Memory:
text_format = "Ran out of memory:\n{}"sv;
break;
case Video::DecoderErrorCategory::Corrupted:
text_format = "Video was corrupted:\n{}"sv;
break;
case Video::DecoderErrorCategory::Invalid:
text_format = "Invalid call:\n{}"sv;
break;
case Video::DecoderErrorCategory::NotImplemented:
text_format = "Video feature is not yet implemented:\n{}"sv;
break;
default:
text_format = "Unexpected error:\n{}"sv;
break;
}
GUI::MessageBox::show(&m_window, String::formatted(text_format, error.string_literal()), "Video Player encountered an error"sv);
}
void VideoPlayerWidget::event(Core::Event& event)
{
if (event.type() == Video::EventType::DecoderErrorOccurred) {
auto& error_event = static_cast<Video::DecoderErrorEvent&>(event);
on_decoding_error(error_event.error());
error_event.accept();
} else if (event.type() == Video::EventType::VideoFramePresent) {
auto& frame_event = static_cast<Video::VideoFramePresentEvent&>(event);
m_video_display->set_bitmap(frame_event.frame());
m_video_display->repaint();
m_seek_slider->set_max(m_playback_manager->duration().to_milliseconds());
m_seek_slider->set_value(m_playback_manager->current_playback_time().to_milliseconds());
m_seek_slider->set_enabled(true);
frame_event.accept();
} else if (event.type() == Video::EventType::PlaybackStatusChange) {
update_play_pause_icon();
event.accept();
}
Widget::event(event);
}
void VideoPlayerWidget::cycle_sizing_modes()
{
auto sizing_mode = m_video_display->sizing_mode();
sizing_mode = static_cast<VideoSizingMode>((to_underlying(sizing_mode) + 1) % to_underlying(VideoSizingMode::Sentinel));
m_video_display->set_sizing_mode(sizing_mode);
m_video_display->update();
}
void VideoPlayerWidget::update_title()
{
StringBuilder string_builder;
if (m_path.is_empty()) {
string_builder.append("No video"sv);
} else {
string_builder.append(m_path.view());
}
string_builder.append("[*] - Video Player"sv);
window()->set_title(string_builder.to_string());
}
void VideoPlayerWidget::initialize_menubar(GUI::Window& window)
{
auto& file_menu = window.add_menu("&File");
file_menu.add_action(GUI::CommonActions::make_open_action([&](auto&) {
Optional<String> path = GUI::FilePicker::get_open_filepath(&window, "Open video file...");
if (path.has_value())
open_file(path.value());
}));
file_menu.add_separator();
file_menu.add_action(GUI::CommonActions::make_quit_action([&](auto&) {
window.close();
}));
auto& help_menu = window.add_menu("&Help");
help_menu.add_action(GUI::CommonActions::make_about_action("Video Player", GUI::Icon::default_icon("app-video-player"sv), &window));
}
}
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