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ladybird/Userland/Applications/VideoPlayer/VideoPlayerWidget.cpp

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/*
* Copyright (c) 2022, Gregory Bertilson <zaggy1024@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/NumberFormat.h>
#include <LibConfig/Client.h>
#include <LibFileSystemAccessClient/Client.h>
#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 <Userland/Applications/VideoPlayer/VideoPlayerWindowGML.h>
#include "VideoPlayerWidget.h"
namespace VideoPlayer {
ErrorOr<NonnullRefPtr<VideoPlayerWidget>> VideoPlayerWidget::try_create()
{
auto main_widget = TRY(adopt_nonnull_ref_or_enomem(new (nothrow) VideoPlayerWidget()));
TRY(main_widget->load_from_gml(videoplayer_window_gml));
TRY(main_widget->setup_interface());
return main_widget;
}
ErrorOr<void> VideoPlayerWidget::setup_interface()
{
m_video_display = find_descendant_of_type_named<VideoPlayer::VideoFrameWidget>("video_frame");
m_video_display->on_click = [&]() { toggle_pause(); };
m_video_display->on_doubleclick = [&]() { toggle_fullscreen(); };
m_seek_slider = find_descendant_of_type_named<GUI::HorizontalSlider>("seek_slider");
m_seek_slider->on_drag_start = [&]() {
if (!m_playback_manager)
return;
m_was_playing_before_seek = m_playback_manager->is_playing();
m_playback_manager->pause_playback();
};
m_seek_slider->on_drag_end = [&]() {
if (!m_playback_manager || !m_was_playing_before_seek)
return;
m_was_playing_before_seek = false;
m_playback_manager->resume_playback();
};
m_seek_slider->on_change = [&](int value) {
if (!m_playback_manager)
return;
update_seek_slider_max();
auto progress = value / static_cast<double>(m_seek_slider->max());
auto duration = m_playback_manager->duration().to_milliseconds();
Time timestamp = Time::from_milliseconds(static_cast<i64>(round(progress * static_cast<double>(duration))));
auto seek_mode_to_use = m_seek_slider->knob_dragging() ? seek_mode() : Video::PlaybackManager::SeekMode::Accurate;
m_playback_manager->seek_to_timestamp(timestamp, seek_mode_to_use);
set_current_timestamp(m_playback_manager->current_playback_time());
};
m_play_icon = TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/play.png"sv));
m_pause_icon = TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/pause.png"sv));
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", TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/fit-image-to-view.png"sv)), [&](auto&) {
cycle_sizing_modes();
});
m_toggle_fullscreen_action = GUI::CommonActions::make_fullscreen_action([&](auto&) {
toggle_fullscreen();
});
m_timestamp_label = find_descendant_of_type_named<GUI::Label>("timestamp");
m_volume_slider = find_descendant_of_type_named<GUI::HorizontalSlider>("volume_slider");
find_descendant_of_type_named<GUI::Button>("playback")->set_action(*m_play_pause_action);
find_descendant_of_type_named<GUI::Button>("sizing")->set_action(*m_cycle_sizing_modes_action);
find_descendant_of_type_named<GUI::Button>("fullscreen")->set_action(*m_toggle_fullscreen_action);
m_size_fit_action = GUI::Action::create_checkable("&Fit", [&](auto&) {
set_sizing_mode(VideoSizingMode::Fit);
});
m_size_fill_action = GUI::Action::create_checkable("Fi&ll", [&](auto&) {
set_sizing_mode(VideoSizingMode::Fill);
});
m_size_stretch_action = GUI::Action::create_checkable("&Stretch", [&](auto&) {
set_sizing_mode(VideoSizingMode::Stretch);
});
m_size_fullsize_action = GUI::Action::create_checkable("F&ull Size", [&](auto&) {
set_sizing_mode(VideoSizingMode::FullSize);
});
// Load the current video sizing mode
// The default fallback for `read_u32` is 0, which is also our desired default for the sizing mode, VideoSizingMode::Fit
auto sizing_mode_value = Config::read_u32("VideoPlayer"sv, "Playback"sv, "SizingMode"sv);
if (sizing_mode_value >= to_underlying(VideoSizingMode::Sentinel)) {
sizing_mode_value = 0;
}
set_sizing_mode(static_cast<VideoSizingMode>(sizing_mode_value));
return {};
}
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(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();
m_playback_manager->on_video_frame = [this](auto frame) {
m_video_display->set_bitmap(move(frame));
m_video_display->repaint();
update_seek_slider_max();
set_current_timestamp(m_playback_manager->current_playback_time());
};
m_playback_manager->on_playback_state_change = [this]() {
update_play_pause_icon();
// If we are seeking, do not set the timestamp, as that will override the seek position.
if (!m_was_playing_before_seek && m_playback_manager->get_state() != Video::PlaybackState::Seeking) {
set_current_timestamp(m_playback_manager->current_playback_time());
}
};
m_playback_manager->on_decoder_error = [this](auto error) {
on_decoding_error(error);
};
m_playback_manager->on_fatal_playback_error = [this](auto) {
close_file();
};
update_seek_slider_max();
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);
m_play_pause_action->set_text("Play"sv);
return;
}
m_play_pause_action->set_enabled(true);
if (m_playback_manager->is_playing() || m_was_playing_before_seek) {
m_play_pause_action->set_icon(m_pause_icon);
m_play_pause_action->set_text("Pause"sv);
} else {
m_play_pause_action->set_icon(m_play_icon);
m_play_pause_action->set_text("Play"sv);
}
}
void VideoPlayerWidget::resume_playback()
{
if (!m_playback_manager || m_seek_slider->knob_dragging())
return;
m_playback_manager->resume_playback();
}
void VideoPlayerWidget::pause_playback()
{
if (!m_playback_manager || m_seek_slider->knob_dragging())
return;
m_playback_manager->pause_playback();
}
void VideoPlayerWidget::toggle_pause()
{
if (!m_playback_manager)
return;
if (m_playback_manager->is_playing())
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(window(), DeprecatedString::formatted(text_format, error.string_literal()), "Video Player encountered an error"sv);
}
void VideoPlayerWidget::update_seek_slider_max()
{
if (!m_playback_manager) {
m_seek_slider->set_enabled(false);
return;
}
m_seek_slider->set_max(static_cast<int>(min(m_playback_manager->duration().to_milliseconds(), NumericLimits<int>::max())));
m_seek_slider->set_enabled(true);
}
void VideoPlayerWidget::set_current_timestamp(Time timestamp)
{
set_time_label(timestamp);
if (!m_playback_manager)
return;
auto progress = static_cast<double>(timestamp.to_milliseconds()) / static_cast<double>(m_playback_manager->duration().to_milliseconds());
m_seek_slider->set_value(static_cast<int>(round(progress * m_seek_slider->max())), GUI::AllowCallback::No);
}
void VideoPlayerWidget::set_time_label(Time timestamp)
{
StringBuilder string_builder;
auto append_time = [&](Time time) {
auto seconds = (time.to_milliseconds() + 500) / 1000;
string_builder.append(human_readable_digital_time(seconds));
};
append_time(timestamp);
if (m_playback_manager) {
string_builder.append(" / "sv);
append_time(m_playback_manager->duration());
} else {
string_builder.append(" / --:--:--"sv);
}
m_timestamp_label->set_text(string_builder.to_string().release_value_but_fixme_should_propagate_errors());
}
void VideoPlayerWidget::drop_event(GUI::DropEvent& event)
{
event.accept();
window()->move_to_front();
if (event.mime_data().has_urls()) {
auto urls = event.mime_data().urls();
if (urls.is_empty())
return;
if (urls.size() > 1) {
GUI::MessageBox::show_error(window(), "VideoPlayer can only view one clip at a time!"sv);
return;
}
auto response = FileSystemAccessClient::Client::the().request_file_read_only_approved(window(), urls.first().serialize_path());
if (response.is_error())
return;
open_file(response.value().filename());
}
}
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));
set_sizing_mode(sizing_mode);
}
void VideoPlayerWidget::set_current_sizing_mode_checked()
{
switch (m_video_display->sizing_mode()) {
case VideoSizingMode::Fit:
m_size_fit_action->set_checked(true);
break;
case VideoSizingMode::Fill:
m_size_fill_action->set_checked(true);
break;
case VideoSizingMode::Stretch:
m_size_stretch_action->set_checked(true);
break;
case VideoSizingMode::FullSize:
m_size_fullsize_action->set_checked(true);
break;
case VideoSizingMode::Sentinel:
break;
}
}
void VideoPlayerWidget::toggle_fullscreen()
{
auto* parent_window = window();
parent_window->set_fullscreen(!parent_window->is_fullscreen());
auto* bottom_container = find_descendant_of_type_named<GUI::Widget>("bottom_container");
bottom_container->set_visible(!parent_window->is_fullscreen());
auto* video_frame = find_descendant_of_type_named<VideoFrameWidget>("video_frame");
video_frame->set_frame_style(parent_window->is_fullscreen() ? Gfx::FrameStyle::NoFrame : Gfx::FrameStyle::SunkenContainer);
}
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_deprecated_string());
}
Video::PlaybackManager::SeekMode VideoPlayerWidget::seek_mode()
{
if (m_use_fast_seeking->is_checked())
return Video::PlaybackManager::SeekMode::Fast;
return Video::PlaybackManager::SeekMode::Accurate;
}
void VideoPlayerWidget::set_seek_mode(Video::PlaybackManager::SeekMode seek_mode)
{
m_use_fast_seeking->set_checked(seek_mode == Video::PlaybackManager::SeekMode::Fast);
}
void VideoPlayerWidget::set_sizing_mode(VideoSizingMode sizing_mode)
{
if (m_video_display->sizing_mode() == sizing_mode)
return;
m_video_display->set_sizing_mode(sizing_mode);
Config::write_u32("VideoPlayer"sv, "Playback"sv, "SizingMode"sv, to_underlying(sizing_mode));
set_current_sizing_mode_checked();
}
ErrorOr<void> VideoPlayerWidget::initialize_menubar(GUI::Window& window)
{
// File menu
auto file_menu = TRY(window.try_add_menu("&File"_short_string));
TRY(file_menu->try_add_action(GUI::CommonActions::make_open_action([&](auto&) {
Optional<DeprecatedString> path = GUI::FilePicker::get_open_filepath(&window, "Open video file...");
if (path.has_value())
open_file(path.value());
})));
TRY(file_menu->try_add_separator());
TRY(file_menu->try_add_action(GUI::CommonActions::make_quit_action([&](auto&) {
window.close();
})));
// Playback menu
auto playback_menu = TRY(window.try_add_menu(TRY("&Playback"_string)));
// FIXME: Maybe seek mode should be in an options dialog instead. The playback menu may get crowded.
// For now, leave it here for convenience.
m_use_fast_seeking = GUI::Action::create_checkable("&Fast Seeking", [&](auto&) {});
TRY(playback_menu->try_add_action(*m_use_fast_seeking));
set_seek_mode(Video::PlaybackManager::DEFAULT_SEEK_MODE);
// View menu
auto view_menu = TRY(window.try_add_menu("&View"_short_string));
TRY(view_menu->try_add_action(*m_toggle_fullscreen_action));
auto sizing_mode_menu = TRY(view_menu->try_add_submenu(TRY("&Sizing mode"_string)));
sizing_mode_menu->set_icon(TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/fit-image-to-view.png"sv)));
m_sizing_mode_group = make<GUI::ActionGroup>();
m_sizing_mode_group->set_exclusive(true);
m_sizing_mode_group->add_action(*m_size_fit_action);
m_sizing_mode_group->add_action(*m_size_fill_action);
m_sizing_mode_group->add_action(*m_size_stretch_action);
m_sizing_mode_group->add_action(*m_size_fullsize_action);
TRY(sizing_mode_menu->try_add_action(*m_size_fit_action));
TRY(sizing_mode_menu->try_add_action(*m_size_fill_action));
TRY(sizing_mode_menu->try_add_action(*m_size_stretch_action));
TRY(sizing_mode_menu->try_add_action(*m_size_fullsize_action));
// Help menu
auto help_menu = TRY(window.try_add_menu("&Help"_short_string));
TRY(help_menu->try_add_action(GUI::CommonActions::make_about_action("Video Player", TRY(GUI::Icon::try_create_default_icon("app-video-player"sv)), &window)));
return {};
}
}
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