1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-18 14:35:07 +00:00
serenity/Userland/Applications/SoundPlayer/SoundPlayerWidgetAdvancedView.cpp
Nick Miller c3a60a5dcd LibGUI+SoundPlayer: Add Slider option to jump to cursor
When the cursor is clicked outside of the slider knob,
the current behavior is that it will step up or down by the
Slider page step amount.

This commit adds an option to jump the slider knob
directly to the where the mouse cursor is on mouse down events.

This behavior is disabled by default. It must be enabled with
`Slider::set_jump_to_cursor()`.

Jump to cursor is enabled in SoundPlayer since most music players
have this behavior.
2021-06-08 00:10:54 +04:30

316 lines
12 KiB
C++

/*
* Copyright (c) 2021, Cesar Torres <shortanemoia@protonmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "SoundPlayerWidgetAdvancedView.h"
#include "BarsVisualizationWidget.h"
#include "Common.h"
#include "M3UParser.h"
#include "PlaybackManager.h"
#include <AK/LexicalPath.h>
#include <AK/SIMD.h>
#include <LibGUI/Action.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Button.h>
#include <LibGUI/Label.h>
#include <LibGUI/MessageBox.h>
#include <LibGUI/Slider.h>
#include <LibGUI/Splitter.h>
#include <LibGUI/Toolbar.h>
#include <LibGUI/ToolbarContainer.h>
#include <LibGUI/Window.h>
#include <LibGfx/Bitmap.h>
SoundPlayerWidgetAdvancedView::SoundPlayerWidgetAdvancedView(GUI::Window& window, PlayerState& state)
: Player(state)
, m_window(window)
{
window.resize(455, 350);
window.set_minimum_size(600, 130);
window.set_resizable(true);
set_fill_with_background_color(true);
set_layout<GUI::VerticalBoxLayout>();
m_splitter = add<GUI::HorizontalSplitter>();
m_player_view = m_splitter->add<GUI::Widget>();
m_playlist_model = adopt_ref(*new PlaylistModel());
m_player_view->set_layout<GUI::VerticalBoxLayout>();
m_play_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/play.png");
m_pause_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/pause.png");
m_stop_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/stop.png");
m_back_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/go-back.png");
m_next_icon = Gfx::Bitmap::load_from_file("/res/icons/16x16/go-forward.png");
m_visualization = m_player_view->add<BarsVisualizationWidget>();
// Set a temporary value for total samples.
// This value will be set properly when we load a new file.
const int total_samples = this->manager().total_length() * 44100;
m_playback_progress_slider = m_player_view->add<AutoSlider>(Orientation::Horizontal);
m_playback_progress_slider->set_fixed_height(20);
m_playback_progress_slider->set_jump_to_cursor(true);
m_playback_progress_slider->set_min(0);
m_playback_progress_slider->set_max(total_samples);
m_playback_progress_slider->set_page_step(total_samples / 10);
m_playback_progress_slider->on_knob_released = [&](int value) {
this->manager().seek(value);
};
auto& toolbar_container = m_player_view->add<GUI::ToolbarContainer>();
auto& menubar = toolbar_container.add<GUI::Toolbar>();
m_play_button = menubar.add<GUI::Button>();
m_play_button->set_icon(is_paused() ? (!has_loaded_file() ? *m_play_icon : *m_pause_icon) : *m_pause_icon);
m_play_button->set_fixed_width(50);
m_play_button->set_enabled(has_loaded_file());
m_play_button->on_click = [&](unsigned) {
bool paused = this->manager().toggle_pause();
set_paused(paused);
m_play_button->set_icon(paused ? *m_play_icon : *m_pause_icon);
};
m_stop_button = menubar.add<GUI::Button>();
m_stop_button->set_icon(*m_stop_icon);
m_stop_button->set_fixed_width(50);
m_stop_button->set_enabled(has_loaded_file());
m_stop_button->on_click = [&](unsigned) {
this->manager().stop();
set_stopped(true);
m_play_button->set_icon(*m_play_icon);
m_stop_button->set_enabled(false);
};
auto& timestamp_label = menubar.add<GUI::Label>();
timestamp_label.set_fixed_width(110);
timestamp_label.set_text("Elapsed: 00:00:00");
// filler_label
menubar.add<GUI::Label>();
m_back_button = menubar.add<GUI::Button>();
m_back_button->set_fixed_width(50);
m_back_button->set_icon(*m_back_icon);
m_back_button->set_enabled(has_loaded_file());
m_back_button->on_click = [&](unsigned) {
if (!m_playlist_model.is_null()) {
auto it = m_playlist_model->items().find_if([&](const M3UEntry& e) { return e.path == loaded_filename(); });
if (it.index() == 0) {
open_file(m_playlist_model->items().at(m_playlist_model->items().size() - 1).path);
} else
open_file((it - 1)->path);
play();
}
};
m_next_button = menubar.add<GUI::Button>();
m_next_button->set_fixed_width(50);
m_next_button->set_icon(*m_next_icon);
m_next_button->set_enabled(has_loaded_file());
m_next_button->on_click = [&](unsigned) {
if (!m_playlist_model.is_null()) {
auto it = m_playlist_model->items().find_if([&](const M3UEntry& e) { return e.path == loaded_filename(); });
if (it.index() + 1 == m_playlist_model->items().size()) {
open_file(m_playlist_model->items().at(0).path);
} else
open_file((it + 1)->path);
play();
}
};
m_volume_label = &menubar.add<GUI::Label>();
m_volume_label->set_fixed_width(30);
m_volume_label->set_text("100%");
auto& volume_slider = menubar.add<GUI::HorizontalSlider>();
volume_slider.set_fixed_width(95);
volume_slider.set_min(0);
volume_slider.set_max(150);
volume_slider.set_value(100);
volume_slider.on_change = [&](int value) {
double volume = m_nonlinear_volume_slider ? (double)(value * value) / (100 * 100) : value / 100.;
m_volume_label->set_text(String::formatted("{}%", (int)(volume * 100)));
set_volume(volume);
};
set_volume(1.);
set_nonlinear_volume_slider(false);
manager().on_update = [&]() {
//TODO: make this program support other sample rates
int samples_played = client_connection().get_played_samples() + this->manager().last_seek();
int current_second = samples_played / 44100;
timestamp_label.set_text(String::formatted("Elapsed: {:02}:{:02}:{:02}", current_second / 3600, current_second / 60, current_second % 60));
if (!m_playback_progress_slider->mouse_is_down()) {
m_playback_progress_slider->set_value(samples_played);
}
dynamic_cast<Visualization*>(m_visualization.ptr())->set_buffer(this->manager().current_buffer());
dynamic_cast<Visualization*>(m_visualization.ptr())->set_samplerate(loaded_file_samplerate());
};
manager().on_load_sample_buffer = [&](Audio::Buffer&) {
//TODO: Implement an equalizer
return;
};
manager().on_finished_playing = [&] {
m_play_button->set_icon(*m_play_icon);
if (looping()) {
open_file(loaded_filename());
return;
}
if (!m_playlist_model.is_null() && !m_playlist_model->items().is_empty()) {
auto it = m_playlist_model->items().find_if([&](const M3UEntry& e) { return e.path == loaded_filename(); });
if (it.index() + 1 == m_playlist_model->items().size()) {
if (looping_playlist()) {
open_file(m_playlist_model->items().at(0).path);
return;
}
} else
open_file((it + 1)->path);
}
};
}
void SoundPlayerWidgetAdvancedView::open_file(StringView path)
{
if (!Core::File::exists(path)) {
GUI::MessageBox::show(window(), String::formatted("File \"{}\" does not exist", path), "Error opening file", GUI::MessageBox::Type::Error);
return;
}
if (path.ends_with(".m3u", AK::CaseSensitivity::CaseInsensitive) || path.ends_with(".m3u8", AK::CaseSensitivity::CaseInsensitive)) {
read_playlist(path);
return;
}
NonnullRefPtr<Audio::Loader> loader = Audio::Loader::create(path);
if (loader->has_error() || !loader->sample_rate()) {
const String error_string = loader->error_string();
GUI::MessageBox::show(&m_window, String::formatted("Failed to load audio file: {} ({})", path, error_string.is_null() ? "Unknown error" : error_string),
"Filetype error", GUI::MessageBox::Type::Error);
return;
}
m_window.set_title(String::formatted("{} - Sound Player", loader->file()->filename()));
m_playback_progress_slider->set_max(loader->total_samples());
m_playback_progress_slider->set_page_step(loader->total_samples() / 10);
m_playback_progress_slider->set_enabled(true);
m_play_button->set_enabled(true);
m_play_button->set_icon(*m_pause_icon);
m_stop_button->set_enabled(true);
manager().set_loader(move(loader));
set_has_loaded_file(true);
set_loaded_file_samplerate(loader->sample_rate());
set_loaded_filename(path);
play();
}
void SoundPlayerWidgetAdvancedView::set_nonlinear_volume_slider(bool nonlinear)
{
m_nonlinear_volume_slider = nonlinear;
}
void SoundPlayerWidgetAdvancedView::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;
open_file(urls.first().path());
}
}
SoundPlayerWidgetAdvancedView::~SoundPlayerWidgetAdvancedView()
{
manager().on_load_sample_buffer = nullptr;
manager().on_update = nullptr;
}
void SoundPlayerWidgetAdvancedView::play()
{
manager().play();
set_paused(false);
set_stopped(false);
}
void SoundPlayerWidgetAdvancedView::read_playlist(StringView path)
{
auto parser = M3UParser::from_file(path);
auto items = parser->parse(true);
VERIFY(items->size() > 0);
try_fill_missing_info(*items, path);
for (auto& item : *items)
m_playlist_model->items().append(item);
set_playlist_visible(true);
m_playlist_model->update();
open_file(items->at(0).path);
if (items->size() > 1) {
m_back_button->set_enabled(true);
m_next_button->set_enabled(true);
} else {
m_back_button->set_enabled(false);
m_next_button->set_enabled(false);
}
}
void SoundPlayerWidgetAdvancedView::set_playlist_visible(bool visible)
{
if (visible) {
m_playlist_widget = m_player_view->parent_widget()->add<PlaylistWidget>();
m_playlist_widget->set_data_model(m_playlist_model);
m_playlist_widget->set_fixed_width(150);
} else {
m_playlist_widget->remove_from_parent();
m_player_view->set_max_width(window()->width());
}
}
void SoundPlayerWidgetAdvancedView::try_fill_missing_info(Vector<M3UEntry>& entries, StringView playlist_p)
{
LexicalPath playlist_path(playlist_p);
Vector<M3UEntry*> to_delete;
for (auto& entry : entries) {
LexicalPath entry_path(entry.path);
if (!entry_path.is_absolute()) {
entry.path = String::formatted("{}/{}", playlist_path.dirname(), entry_path.basename());
}
if (!Core::File::exists(entry.path)) {
GUI::MessageBox::show(window(), String::formatted("The file \"{}\" present in the playlist does not exist or was not found. This file will be ignored.", entry_path.basename()), "Error reading playlist", GUI::MessageBox::Type::Warning);
to_delete.append(&entry);
continue;
}
if (!entry.extended_info->track_display_title.has_value())
entry.extended_info->track_display_title = LexicalPath(entry.path).title();
if (!entry.extended_info->track_length_in_seconds.has_value()) {
if (entry_path.has_extension("wav")) {
auto wav_reader = Audio::Loader::create(entry.path);
entry.extended_info->track_length_in_seconds = wav_reader->total_samples() / wav_reader->sample_rate();
}
//TODO: Implement embedded metadata extractor for other audio formats
}
//TODO: Implement a metadata parser for the uncomfortably numerous popular embedded metadata formats
if (!entry.extended_info->file_size_in_bytes.has_value()) {
FILE* f = fopen(entry.path.characters(), "r");
VERIFY(f != nullptr);
fseek(f, 0, SEEK_END);
entry.extended_info->file_size_in_bytes = ftell(f);
fclose(f);
}
}
for (M3UEntry* entry : to_delete)
entries.remove_first_matching([&](M3UEntry& e) { return &e == entry; });
}