feat: initial fft spectrum visualization support

The final goal is actually still clone ShadowPlayer's spectrum visualization, tho.
2024-10-20 00:12:09 +08:00
23 changed files with 603 additions and 2097 deletions
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@ -8,7 +8,7 @@ jobs:
    strategy:
      matrix:
        include:
-          - qt_ver: '6.9.1'
+          - qt_ver: '6.8.0'
            vs: '2022'
            aqt_arch: 'win64_msvc2022_64'
            msvc_arch: 'x64'
@ -35,31 +35,22 @@ jobs:
        :: ------ dep ------
        set CMAKE_PREFIX_PATH=%PWD%/dependencies_bin
        mkdir dependencies_src
-        echo ::group::===== ECM =====
+        :: ===== ECM =====
        git clone -q https://invent.kde.org/frameworks/extra-cmake-modules.git dependencies_src/extra-cmake-modules
        cmake .\dependencies_src\extra-cmake-modules -Bbuild_dependencies/extra-cmake-modules -DCMAKE_INSTALL_PREFIX="dependencies_bin" -DBUILD_TESTING=OFF || goto :error
        cmake --build build_dependencies/extra-cmake-modules --config Release --target=install || goto :error
-        echo ::endgroup::
-        echo ::group::===== FFmpeg =====
-        curl -fsSL -o ffmpeg-shared.7z https://github.com/GyanD/codexffmpeg/releases/download/7.1.1/ffmpeg-7.1.1-full_build-shared.7z
-        7z x ffmpeg-shared.7z -y -o"dependencies_src"
-        set FFMPEG_ROOT=%PWD%\dependencies_src\ffmpeg-7.1.1-full_build-shared
-        echo ::endgroup::
-        echo ::group::===== Gperf (required by KCodecs) =====
+        :: ===== Gperf (required by KCodecs) =====
        choco install gperf
-        echo ::endgroup::
-        echo ::group::===== KCodecs =====
+        :: ===== KCodecs =====
        git clone -q https://invent.kde.org/frameworks/kcodecs.git dependencies_src/kcodecs
        cmake .\dependencies_src\kcodecs -Bbuild_dependencies/kcodecs -DCMAKE_INSTALL_PREFIX="dependencies_bin" -DBUILD_TESTING=OFF || goto :error
        cmake --build build_dependencies/kcodecs --config Release --target=install || goto :error
-        echo ::endgroup::
-        echo ::group::===== taglib =====
+        :: ===== taglib =====
        git clone --recurse-submodules -q https://github.com/taglib/taglib.git dependencies_src/taglib
        cmake .\dependencies_src\taglib -Bbuild_dependencies/taglib -DBUILD_SHARED_LIBS=ON -DCMAKE_INSTALL_PREFIX="dependencies_bin" || goto :error
        cmake --build build_dependencies/taglib --config Release --target=install -j || goto :error
-        echo ::endgroup::
        :: ------ app ------
-        cmake -Bbuild . -DUSE_QTEXTCODEC=ON -DCMAKE_INSTALL_PREFIX='%PWD%\build\' || goto :error
+        cmake -Bbuild . -DUSE_QTEXTCODEC=ON -DCMAKE_INSTALL_PREFIX="%PWD%\build\" || goto :error
        cmake --build build --config Release -j || goto :error
        cmake --build build --config Release --target=install || goto :error
        :: ------ pkg ------
--- a/.gitignore
+++ b/.gitignore
@ -1,13 +1,8 @@
 # Common build folder
 [Bb]uild/
-build-*/

 # IDE folder
 .vscode/
-.idea/

 # User config file
 CMakeLists.txt.user*
-
-# Why, macOS, why?
-.DS_Store
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -1,166 +1,138 @@
-cmake_minimum_required(VERSION 3.12)
-
-project(pineapple-music LANGUAGES CXX VERSION 0.3.0)
-
-include (GNUInstallDirs)
+cmake_minimum_required(VERSION 3.12)
+
+project(pineapple-music LANGUAGES CXX)
+
+include (GNUInstallDirs)
 include (FeatureSummary)
-include (FetchContent)
-
-set(CMAKE_INCLUDE_CURRENT_DIR ON)
-
-set(CMAKE_AUTOUIC ON)
-set(CMAKE_AUTOMOC ON)
-set(CMAKE_AUTORCC ON)
-
-set(CMAKE_CXX_STANDARD 17)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
-option(USE_QTEXTCODEC "Use QTextCodec instead of QStringConverter, in case Qt is not built with ICU" OFF)
-
-find_package(Qt6 6.6 COMPONENTS Widgets Multimedia Network LinguistTools REQUIRED)
-find_package(FFmpeg COMPONENTS avutil avformat)
-find_package(TagLib 2.0.0)
+include(FetchContent)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(CMAKE_AUTOUIC ON)
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTORCC ON)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+option(USE_QTEXTCODEC "Use QTextCodec instead of QStringConverter, in case Qt is not built with ICU" OFF)
+
+find_package(Qt6 6.6 COMPONENTS Widgets Multimedia Network LinguistTools REQUIRED)
+find_package(TagLib 2.0.0)
 find_package(KF6Codecs 6.1.0)
-
-FetchContent_Declare(
-    kissfft
-    GIT_REPOSITORY https://github.com/mborgerding/kissfft.git
-    GIT_TAG f5f2a3b2f2cd02bf80639adb12cbeed125bdf420
+
+FetchContent_Declare(
+    kissfft
+    GIT_REPOSITORY https://github.com/mborgerding/kissfft.git
+    GIT_TAG f5f2a3b2f2cd02bf80639adb12cbeed125bdf420
 )
 set(KISSFFT_PKGCONFIG OFF CACHE BOOL "dep(kissfft): pkgconfig support")
 set(KISSFFT_STATIC ON CACHE BOOL "dep(kissfft): static linking")
 set(KISSFFT_TEST OFF CACHE BOOL "dep(kissfft): enable testing")
-set(KISSFFT_TOOLS OFF CACHE BOOL "dep(kissfft): build tools")
-FetchContent_MakeAvailable(kissfft)
-
-if (USE_QTEXTCODEC)
-    find_package(Qt6 6.6 COMPONENTS Core5Compat REQUIRED)
-endif()
-
-set (PMUSIC_CPP_FILES
-    main.cpp
-    mainwindow.cpp
-    seekableslider.cpp
-    playlistmanager.cpp
-    singleapplicationmanager.cpp
-    lrcbar.cpp
+set(KISSFFT_TOOLS OFF CACHE BOOL "dep(kissfft): build tools")
+FetchContent_MakeAvailable(kissfft)
+
+if (USE_QTEXTCODEC)
+    find_package(Qt6 6.6 COMPONENTS Core5Compat REQUIRED)
+endif()
+
+set (PMUSIC_CPP_FILES
+    main.cpp
+    mainwindow.cpp
+    seekableslider.cpp
+    playlistmanager.cpp
+    singleapplicationmanager.cpp
+    lrcbar.cpp
    lyricsmanager.cpp
-    fftspectrum.cpp
-    playbackprogressindicator.cpp
-)
-
-set (PMUSIC_HEADER_FILES
-    mainwindow.h
-    seekableslider.h
-    playlistmanager.h
-    singleapplicationmanager.h
-    lrcbar.h
+    fftspectrum.cpp
+)
+
+set (PMUSIC_HEADER_FILES
+    mainwindow.h
+    seekableslider.h
+    playlistmanager.h
+    singleapplicationmanager.h
+    lrcbar.h
    lyricsmanager.h
-    fftspectrum.h
-    playbackprogressindicator.h
-    taskbarmanager.h
-)
-
-set (PMUSIC_UI_FILES
-    mainwindow.ui
-)
-
-set (EXE_NAME pmusic)
-
-# Translation
-file (GLOB PMUSIC_TS_FILES languages/*.ts)
-set (PMUSIC_CPP_FILES_FOR_I18N ${PMUSIC_CPP_FILES} ${PMUSIC_UI_FILES})
-
-add_executable(${EXE_NAME}
-    ${PMUSIC_HEADER_FILES}
-    ${PMUSIC_CPP_FILES}
-    ${PMUSIC_UI_FILES}
-    resources.qrc
-)
-
-qt_add_translations(${EXE_NAME}
-TS_FILES
-    ${PMUSIC_TS_FILES}
-)
-
-if (WIN32)
-    target_sources(${EXE_NAME} PRIVATE assets/pineapple-music.rc)
-    target_sources(${EXE_NAME} PRIVATE taskbarmanager.cpp)
-else ()
-    target_sources(${EXE_NAME} PRIVATE taskbarmanager_dummy.cpp)
-endif ()
-
-if (NOT TagLib_FOUND)
-    target_compile_definitions(${EXE_NAME} PRIVATE NO_TAGLIB=1)
-else ()
-    target_link_libraries(${EXE_NAME} PRIVATE TagLib::tag)
-endif ()
-
-if (TARGET KF6::Codecs)
-    target_compile_definitions(${EXE_NAME} PRIVATE HAVE_KCODECS=1)
-    target_link_libraries (${EXE_NAME} PRIVATE KF6::Codecs)
-endif ()
-
-if (FFmpeg_FOUND)
-    target_compile_definitions(${EXE_NAME} PRIVATE HAVE_FFMPEG=1)
-    target_link_libraries (${EXE_NAME} PRIVATE FFmpeg::avutil FFmpeg::avformat)
-endif ()
-
-target_link_libraries(${EXE_NAME} PRIVATE Qt::Widgets Qt::Multimedia Qt::Network kissfft::kissfft)
-
-if (USE_QTEXTCODEC)
-    target_compile_definitions(${EXE_NAME} PRIVATE USE_QTEXTCODEC=1)
-    target_link_libraries(${EXE_NAME} PRIVATE Qt6::Core5Compat)
-endif()
-
-# Install settings
-if (WIN32)
-    set_target_properties(${EXE_NAME} PROPERTIES
-        WIN32_EXECUTABLE TRUE
-    )
-elseif (APPLE)
-    set_source_files_properties(assets/icons/app-icon.icns PROPERTIES
-        MACOSX_PACKAGE_LOCATION "Resources"
-    )
-    target_sources(${EXE_NAME} PUBLIC assets/icons/app-icon.icns)
-    # See https://cmake.org/cmake/help/v3.15/prop_tgt/MACOSX_BUNDLE_INFO_PLIST.html
-    set_target_properties(${EXE_NAME} PROPERTIES
-        MACOSX_BUNDLE TRUE
-        MACOSX_BUNDLE_BUNDLE_NAME "Pineapple Music"
-        MACOSX_BUNDLE_GUI_IDENTIFIER net.blumia.pineapple-music
-        MACOSX_BUNDLE_ICON_FILE app-icon.icns # contains the .icns file name, *without* the path.
-        MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
-        MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
-    )
-elseif (UNIX)
-    if (CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
-        set(CMAKE_INSTALL_PREFIX /usr)
-    endif ()
-
-    # install icon
-    install(
-        FILES icons/app-icon.svg
-        DESTINATION "${CMAKE_INSTALL_DATADIR}/icons/hicolor/48x48/apps"
-        RENAME net.blumia.pineapple-music.svg
-    )
-
-    # install shortcut
-    install(
-        FILES dist/net.blumia.pineapple-music.desktop
-        DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/applications"
-    )
-endif()
-
-set (INSTALL_TARGETS_DEFAULT_ARGS
-    BUNDLE DESTINATION .
-    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} COMPONENT Devel
-)
-
-install (
-    TARGETS ${EXE_NAME}
-    ${INSTALL_TARGETS_DEFAULT_ARGS}
-)
-
-feature_summary(WHAT ALL INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)
+    fftspectrum.h
+)
+
+set (PMUSIC_UI_FILES
+    mainwindow.ui
+)
+
+set (EXE_NAME pmusic)
+
+# Translation
+file (GLOB PMUSIC_TS_FILES languages/*.ts)
+set (PMUSIC_CPP_FILES_FOR_I18N ${PMUSIC_CPP_FILES} ${PMUSIC_UI_FILES})
+
+add_executable(${EXE_NAME} WIN32
+    ${PMUSIC_HEADER_FILES}
+    ${PMUSIC_CPP_FILES}
+    ${PMUSIC_UI_FILES}
+    resources.qrc
+)
+
+qt_add_translations(${EXE_NAME}
+TS_FILES
+    ${PMUSIC_TS_FILES}
+)
+
+if (WIN32)
+    target_sources(${EXE_NAME} PRIVATE assets/pineapple-music.rc)
+endif ()
+
+if (NOT TagLib_FOUND)
+    target_compile_definitions(${EXE_NAME} PRIVATE NO_TAGLIB=1)
+else ()
+    target_link_libraries(${EXE_NAME} PRIVATE TagLib::tag)
+endif ()
+
+if (TARGET KF6::Codecs)
+    target_compile_definitions(${EXE_NAME} PRIVATE HAVE_KCODECS=1)
+    target_link_libraries (${EXE_NAME} PRIVATE KF6::Codecs)
+endif ()
+
+target_link_libraries(${EXE_NAME} PRIVATE Qt::Widgets Qt::Multimedia Qt::Network kissfft::kissfft)
+
+if (USE_QTEXTCODEC)
+    target_compile_definitions(${EXE_NAME} PRIVATE USE_QTEXTCODEC=1)
+    target_link_libraries(${EXE_NAME} PRIVATE Qt6::Core5Compat)
+endif()
+
+# Install settings
+if (WIN32)
+    # FIXME: try to avoid install to a "bin" subfolder under windows...
+    #        when fixed, don't forget to update the CI config file...
+elseif (UNIX)
+    if (CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+        set(CMAKE_INSTALL_PREFIX /usr)
+    endif ()
+
+    # install icon
+    install(
+        FILES icons/app-icon.svg
+        DESTINATION "${CMAKE_INSTALL_DATADIR}/icons/hicolor/48x48/apps"
+        RENAME net.blumia.pineapple-music.svg
+    )
+
+    # install shortcut
+    install(
+        FILES dist/net.blumia.pineapple-music.desktop
+        DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/applications"
+    )
+endif()
+
+set (INSTALL_TARGETS_DEFAULT_ARGS
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} COMPONENT Devel
+)
+
+install (
+    TARGETS ${EXE_NAME}
+    ${INSTALL_TARGETS_DEFAULT_ARGS}
+)
+
+feature_summary(WHAT ALL INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)
--- a/README.md
+++ b/README.md
@ -7,14 +7,9 @@ Since **I** just need a simple player which *just works* right now, so I did man
 We have the following features:

 - [Sidecar](https://en.wikipedia.org/wiki/Sidecar_file) lyrics file (`.lrc`) support with an optional desktop lyrics bar widget
- Chapter file support
-  - Sidecar chapter file support:
-    - [YouTube-style chapter](https://support.google.com/youtube/answer/9884579) saved to a plain text file with `.chp` suffix
-    - PotPlayer `.pbf` file, `[Bookmark]`s as chapters
-  - Built-in chapter support (require build with FFmpeg)
 - Auto-load all audio files in the same folder of the file that you attempted to play, into a playlist

-These features are not available, some of them are TBD and others are not planned:
+But these features are not available, some of them are TBD and others are not planned:

 - File format support will be limited by the [FFmpeg version that Qt 6 uses](https://doc.qt.io/qt-6/qtmultimedia-attribution-ffmpeg.html).
  - ...which if you use Qt's official binary, only contains the LGPLv2.1+ part. (already good enough, tho)
@ -23,6 +18,7 @@ These features are not available, some of them are TBD and others are not planne
 - Limited system integration:
  - No [SMTC](https://learn.microsoft.com/en-us/uwp/api/windows.media.systemmediatransportcontrols) support under Windows for now
  - No [MPRIS](https://www.freedesktop.org/wiki/Specifications/mpris-spec/) support under Linux desktop for now
+  - No "playback progress on taskbar icon" and "taskbar thumbnail buttons" support whatever on Windows or Linux desktop for now
 - Limited lyrics (`.lrc`) loading support:
  - Currently no `.tlrc` (for translated lyrics) or `.rlrc` (for romanized lyrics) support.
  - Multi-line lyrics and duplicated timestamps are not supported
@ -32,14 +28,10 @@ These features are not available, some of them are TBD and others are not planne

 Current state, we need:

- `cmake` as the build system.
- `qt6` with `qt6-multimedia` since we use it for playback.
- `kissfft` for FFT support (will be downloaded at configure-time by `cmake`).
- (optional) `taglib` to get the audio file properties.
- (optional) `kf6codecs` to get the lyrics encoding correct.
- (optional) `ffmpeg` to get the audio chapter properties.
-  - It's suggested to use the same FFmpeg version that Qt Multimedia uses, so we can reuse the FFmpeg library binaries that Qt uses.
-    - You can know the version by checking [Qt documentation's FFmpeg attribution page](https://doc.qt.io/qt-6.9/qtmultimedia-attribution-ffmpeg.html)
+ - `cmake` as the build system.
+ - `qt6` with `qt6-multimedia` since we use it for playback.
+ - `taglib` to get the audio file properties.
+ - `kissfft` for FFT support (will be downloaded at configure-time by `cmake`).

 Then we can build it with any proper c++ compiler like g++ or msvc.

--- a/appveyor.yml
+++ b/appveyor.yml
@ -5,8 +5,8 @@ environment:
  PACKAGE_INSTALL_ROOT: C:\projects\pir
  matrix:
    - build_name: mingw1120_64_qt6_7
-      QTPATH: C:\Qt\6.8\mingw_64
-      MINGW64: C:\Qt\Tools\mingw1310_64
+      QTPATH: C:\Qt\6.7\mingw_64
+      MINGW64: C:\Qt\Tools\mingw1120_64

 install:
  - mkdir %CMAKE_INSTALL_ROOT%
--- a/assets/icons/app-icon.icns
+++ b/assets/icons/app-icon.icns
--- a/fftspectrum.cpp
+++ b/fftspectrum.cpp
@ -11,11 +11,6 @@
 #include <QPainter>

 #include <kissfft.hh>
-#include <cmath>
-
-#ifndef M_PI
-#define M_PI 3.14159265358979323846
-#endif

 FFTSpectrum::FFTSpectrum(QWidget* parent)
    : QWidget(parent)
@ -31,7 +26,6 @@ FFTSpectrum::FFTSpectrum(QWidget* parent)
    });

    connect(m_audioBufferOutput, &QAudioBufferOutput::audioBufferReceived, this, [=](const QAudioBuffer& buffer) {
-        if (!isVisible()) return;
        const QAudioFormat& fmt = buffer.format();
        const QAudioFormat::SampleFormat sampleFormat = fmt.sampleFormat();
        QAudioFormat::ChannelConfig channelConfig = fmt.channelConfig();
@ -86,35 +80,15 @@ FFTSpectrum::FFTSpectrum(QWidget* parent)
            qWarning() << "Unsupported format or channel config:" << sampleFormat << channelConfig;
            return;
        }
-        // Apply Hanning window to reduce spectral leakage
-        for (int i = 0; i < frameCount; ++i) {
-            float window = 0.5f * (1.0f - cos(2.0f * M_PI * i / (frameCount - 1)));
-            samples[i].real(samples[i].real() * window);
-        }
        fft.transform(samples.data(), mass.data());
-        // Use only the first half of FFT result (positive frequencies)
-        int spectrumSize = frameCount / 2;
-        m_freq.resize(spectrumSize);
-        for (int i = 0; i < spectrumSize; i++) {
+        m_freq.resize(frameCount);
+        for (int i = 0; i < frameCount; i++) {
            m_freq[i] = sqrt(mass[i].real() * mass[i].real() + mass[i].imag() * mass[i].imag());
        }
-
-        // Remove DC component and very low frequencies (like most spectrum analyzers do)
-        // DC component (0 Hz) is usually not musically relevant
-        m_freq[0] = 0;
-
-        // Optionally remove the first few bins (very low frequencies below ~20Hz)
-        // Calculate how many bins correspond to frequencies below 20Hz
-        int sampleRate = fmt.sampleRate();
-        int lowFreqCutoff = std::min(3, (20 * frameCount) / (sampleRate * 2)); // Limit to first 3 bins max
-        for (int i = 1; i <= lowFreqCutoff && i < spectrumSize; i++) {
-            m_freq[i] *= (float(i) / float(lowFreqCutoff + 1)); // Gradual fade-in instead of hard cut
-        }
-
        for (auto& val : m_freq) {
            val = log10(val + 1);
        }
-
+        qDebug() << m_freq.size() << "updated" << sampleFormat << channelConfig;
        update();
    });
 #endif // QT_VERSION >= QT_VERSION_CHECK(6, 8, 0)
@ -139,19 +113,10 @@ void FFTSpectrum::paintEvent(QPaintEvent* e)
    if (!m_freq.empty()) {
        int width = this->width();
        int height = this->height();
-        int barWidth = std::max(1, width / static_cast<int>(m_freq.size()));
-
-        for (size_t i = 0; i < m_freq.size(); i++) {
-            // Use sqrt to compress the range similar to original, but safer
-            int barHeight = static_cast<int>(sqrt(std::max(0.0f, m_freq[i])) * height * 0.5);
-            barHeight = std::max(0, std::min(barHeight, height));
-
-            // Calculate alpha based on frequency value, similar to original
-            int alpha = std::min(255, static_cast<int>(140 * m_freq[i]) + 90);
-            alpha = std::max(90, alpha);
-
-            QColor color(70, 130, 180, alpha);
-            painter.fillRect(static_cast<int>(i) * barWidth, height - barHeight, barWidth, barHeight, color);
+        int barWidth = std::max(1ULL, width / m_freq.size());
+        for (int i = 0; i < m_freq.size(); i++) {
+            int barHeight = static_cast<int>(sqrt(m_freq[i]) * height * 0.5);
+            painter.fillRect(i * barWidth, height - barHeight, barWidth, barHeight, QColor(70, 130, 180, (int)(140 * m_freq[i]) + 90));
        }
    }
 }
--- a/languages/pineapple-music_en.ts
+++ b/languages/pineapple-music_en.ts
@ -12,113 +12,82 @@
 <context>
    <name>MainWindow</name>
    <message>
-        <location filename="../mainwindow.cpp" line="125"/>
+        <location filename="../mainwindow.cpp" line="93"/>
        <source>Mono</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="127"/>
+        <location filename="../mainwindow.cpp" line="95"/>
        <source>Stereo</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="129"/>
+        <location filename="../mainwindow.cpp" line="97"/>
        <source>%1 Channels</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="298"/>
+        <location filename="../mainwindow.cpp" line="241"/>
        <source>Select songs to play</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="300"/>
+        <location filename="../mainwindow.cpp" line="243"/>
        <source>Audio Files</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="685"/>
+        <location filename="../mainwindow.cpp" line="576"/>
        <source>Select image as background skin</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="687"/>
+        <location filename="../mainwindow.cpp" line="578"/>
        <source>Image files (*.jpg *.jpeg *.png *.gif)</source>
        <translation type="unfinished"></translation>
    </message>
-    <message>
-        <location filename="../mainwindow.cpp" line="764"/>
-        <source>Based on the following free software libraries:</source>
-        <translation type="unfinished"></translation>
-    </message>
    <message>
        <location filename="../mainwindow.ui" line="23"/>
-        <location filename="../mainwindow.cpp" line="762"/>
        <location filename="../lrcbar.cpp" line="89"/>
        <source>Pineapple Music</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../mainwindow.ui" line="327"/>
+        <location filename="../mainwindow.ui" line="313"/>
        <source>No song loaded...</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../mainwindow.ui" line="339"/>
+        <location filename="../mainwindow.ui" line="325"/>
        <source>Drag and drop file to load</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../mainwindow.ui" line="352"/>
+        <location filename="../mainwindow.ui" line="338"/>
        <source>Lrc</source>
        <comment>Lyrics</comment>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../mainwindow.ui" line="711"/>
-        <location filename="../mainwindow.ui" line="714"/>
-        <location filename="../mainwindow.cpp" line="759"/>
-        <source>About</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <location filename="../mainwindow.ui" line="728"/>
-        <source>Open</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <location filename="../mainwindow.cpp" line="135"/>
+        <location filename="../mainwindow.cpp" line="103"/>
        <source>Sample Rate: %1 Hz</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="140"/>
+        <location filename="../mainwindow.cpp" line="108"/>
        <source>Bitrate: %1 Kbps</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="145"/>
+        <location filename="../mainwindow.cpp" line="113"/>
        <source>Channel Count: %1</source>
        <translation type="unfinished"></translation>
    </message>
 </context>
-<context>
-    <name>PlaybackProgressIndicator</name>
-    <message>
-        <location filename="../playbackprogressindicator.cpp" line="85"/>
-        <source>Time</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <location filename="../playbackprogressindicator.cpp" line="85"/>
-        <source>Chapter Name</source>
-        <translation type="unfinished"></translation>
-    </message>
-</context>
 <context>
    <name>main</name>
    <message>
-        <location filename="../main.cpp" line="27"/>
+        <location filename="../main.cpp" line="28"/>
        <source>File list.</source>
        <translation type="unfinished"></translation>
    </message>
--- a/languages/pineapple-music_zh_CN.ts
+++ b/languages/pineapple-music_zh_CN.ts
@ -12,113 +12,82 @@
 <context>
    <name>MainWindow</name>
    <message>
-        <location filename="../mainwindow.cpp" line="125"/>
+        <location filename="../mainwindow.cpp" line="93"/>
        <source>Mono</source>
        <translation>单声道</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="127"/>
+        <location filename="../mainwindow.cpp" line="95"/>
        <source>Stereo</source>
        <translation>立体声</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="129"/>
+        <location filename="../mainwindow.cpp" line="97"/>
        <source>%1 Channels</source>
        <translation>%1 声道</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="298"/>
+        <location filename="../mainwindow.cpp" line="241"/>
        <source>Select songs to play</source>
        <translation>选择要播放的曲目</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="300"/>
+        <location filename="../mainwindow.cpp" line="243"/>
        <source>Audio Files</source>
        <translation>音频文件</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="685"/>
+        <location filename="../mainwindow.cpp" line="576"/>
        <source>Select image as background skin</source>
        <translation>选择图片作为背景皮肤</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="687"/>
+        <location filename="../mainwindow.cpp" line="578"/>
        <source>Image files (*.jpg *.jpeg *.png *.gif)</source>
        <translation>图片文件 (*.jpg *.jpeg *.png *.gif)</translation>
    </message>
-    <message>
-        <location filename="../mainwindow.cpp" line="764"/>
-        <source>Based on the following free software libraries:</source>
-        <translation>基于下列自由软件库：</translation>
-    </message>
    <message>
        <location filename="../mainwindow.ui" line="23"/>
-        <location filename="../mainwindow.cpp" line="762"/>
        <location filename="../lrcbar.cpp" line="89"/>
        <source>Pineapple Music</source>
        <translation>菠萝音乐</translation>
    </message>
    <message>
-        <location filename="../mainwindow.ui" line="327"/>
+        <location filename="../mainwindow.ui" line="313"/>
        <source>No song loaded...</source>
        <translation>未加载曲目...</translation>
    </message>
    <message>
-        <location filename="../mainwindow.ui" line="339"/>
+        <location filename="../mainwindow.ui" line="325"/>
        <source>Drag and drop file to load</source>
        <translation>拖放文件来播放</translation>
    </message>
    <message>
-        <location filename="../mainwindow.ui" line="352"/>
+        <location filename="../mainwindow.ui" line="338"/>
        <source>Lrc</source>
        <comment>Lyrics</comment>
        <translation>歌词</translation>
    </message>
    <message>
-        <location filename="../mainwindow.ui" line="711"/>
-        <location filename="../mainwindow.ui" line="714"/>
-        <location filename="../mainwindow.cpp" line="759"/>
-        <source>About</source>
-        <translation>关于</translation>
-    </message>
-    <message>
-        <location filename="../mainwindow.ui" line="728"/>
-        <source>Open</source>
-        <translation>打开</translation>
-    </message>
-    <message>
-        <location filename="../mainwindow.cpp" line="135"/>
+        <location filename="../mainwindow.cpp" line="103"/>
        <source>Sample Rate: %1 Hz</source>
        <translation>采样率: %1 Hz</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="140"/>
+        <location filename="../mainwindow.cpp" line="108"/>
        <source>Bitrate: %1 Kbps</source>
        <translation>比特率: %1 Kbps</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="145"/>
+        <location filename="../mainwindow.cpp" line="113"/>
        <source>Channel Count: %1</source>
        <translation>声道数: %1</translation>
    </message>
 </context>
-<context>
-    <name>PlaybackProgressIndicator</name>
-    <message>
-        <location filename="../playbackprogressindicator.cpp" line="85"/>
-        <source>Time</source>
-        <translation>时间</translation>
-    </message>
-    <message>
-        <location filename="../playbackprogressindicator.cpp" line="85"/>
-        <source>Chapter Name</source>
-        <translation>章节名称</translation>
-    </message>
-</context>
 <context>
    <name>main</name>
    <message>
-        <location filename="../main.cpp" line="27"/>
+        <location filename="../main.cpp" line="28"/>
        <source>File list.</source>
        <translation>文件列表。</translation>
    </message>
--- a/lyricsmanager.cpp
+++ b/lyricsmanager.cpp
@ -112,7 +112,8 @@ bool LyricsManager::loadLyrics(QString filepath)
        QRegularExpressionMatch match = lrcRegex.match(line);
        while (match.hasMatch()) {
            tagSectionPassed = true;
-            timestamps.append(parseTimeToMilliseconds(match.captured(1)));
+            QTime timestamp(QTime::fromString(match.captured(1), "m:s.zz"));
+            timestamps.append(timestamp.msecsSinceStartOfDay());
            currentLrc = match.captured(2);
            match = lrcRegex.match(currentLrc);
        }
@ -176,23 +177,6 @@ double LyricsManager::maskPercent(int curTimeMs)
    return (double)(curTimeMs - currentLyricsTime()) / (m_nextLyricsTime - m_currentLyricsTime);
 }

-int LyricsManager::parseTimeToMilliseconds(const QString &timeString)
-{
-    QRegularExpression timeRegex(R"((\d{2,3}):(\d{2})\.(\d{2,3}))");
-    QRegularExpressionMatch match = timeRegex.match(timeString);
-
-    if (match.hasMatch()) {
-        int minutes = match.captured(1).toInt();
-        int seconds = match.captured(2).toInt();
-        int milliseconds = match.captured(3).toInt();
-
-        return minutes * 60000 + seconds * 1000 + milliseconds;
-    } else {
-        qCWarning(lcLyricsParser) << "Invalid time format:" << timeString;
-        return -1;
-    }
-}
-
 void LyricsManager::reset()
 {
    m_currentLyricsTime = 0;
--- a/lyricsmanager.h
+++ b/lyricsmanager.h
@ -25,8 +25,6 @@ public:
    QString lyrics(int lineOffset = 0) const;
    double maskPercent(int curTimeMs);

-    static int parseTimeToMilliseconds(const QString& timeString);
-
 protected:


--- a/main.cpp
+++ b/main.cpp
@ -21,6 +21,7 @@ int main(int argc, char *argv[])
    if (translator.load(QLocale(), QLatin1String("pineapple-music"), QLatin1String("_"), QLatin1String(":/i18n"))) {
        a.installTranslator(&translator);
    }
+    a.installTranslator(&translator);

    // parse commandline arguments
    QCommandLineParser parser;
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: 2025 Gary Wang <opensource@blumia.net>
+// SPDX-FileCopyrightText: 2024 Gary Wang <git@blumia.net>
 //
 // SPDX-License-Identifier: MIT

@ -8,7 +8,6 @@
 #include "playlistmanager.h"
 #include "fftspectrum.h"
 #include "lrcbar.h"
-#include "taskbarmanager.h"

 // taglib
 #ifndef NO_TAGLIB
@ -27,16 +26,12 @@
 #include <QListView>
 #include <QCollator>
 #include <QMimeData>
-#include <QMenu>
 #include <QWindow>
 #include <QStandardPaths>
 #include <QMediaDevices>
 #include <QAudioDevice>
 #include <QMessageBox>
 #include <QStringBuilder>
-#include <QSettings>
-#include <QGraphicsDropShadowEffect>
-#include <QTimer>

 constexpr QSize miniSize(490, 160);
 constexpr QSize fullSize(490, 420);
@ -50,7 +45,6 @@ MainWindow::MainWindow(QWidget *parent)
    , m_fftSpectrum(new FFTSpectrum(this))
    , m_lrcbar(new LrcBar(nullptr))
    , m_playlistManager(new PlaylistManager(this))
-    , m_taskbarManager(new TaskBarManager(this))
 {
    ui->setupUi(this);
    m_playlistManager->setAutoLoadFilterSuffixes({
@ -61,43 +55,21 @@ MainWindow::MainWindow(QWidget *parent)
    m_mediaPlayer->setLoops(QMediaPlayer::Infinite);
    ui->playlistView->setModel(m_playlistManager->model());

-    ui->chapterNameBtn->setVisible(false);
-    ui->chapterlistView->setModel(ui->playbackProgressIndicator->chapterModel());
-    ui->chapterlistView->setRootIsDecorated(false);
-
    ui->actionHelp->setShortcut(QKeySequence::HelpContents);
    addAction(ui->actionHelp);
-    ui->actionOpen->setShortcut(QKeySequence::Open);
-    addAction(ui->actionOpen);
-
-    ui->titleLabel->setGraphicsEffect(createLabelShadowEffect());
-    ui->propLabel->setGraphicsEffect(createLabelShadowEffect());
-    ui->nowTimeLabel->setGraphicsEffect(createLabelShadowEffect());
-    ui->totalTimeLabel->setGraphicsEffect(createLabelShadowEffect());

    setWindowFlags(Qt::FramelessWindowHint | Qt::WindowSystemMenuHint | Qt::WindowMinimizeButtonHint);
    setAttribute(Qt::WA_TranslucentBackground, true);

-    m_taskbarManager->setCanTogglePlayback(true);
-    m_taskbarManager->setCanSkipBackward(true);
-    m_taskbarManager->setCanSkipForward(true);
-    m_taskbarManager->setShowProgress(true);
-
-    loadConfig();
    loadSkinData();
    initConnections();
    initUiAndAnimation();

    centerWindow();
-
-    QTimer::singleShot(1000, [this](){
-        m_taskbarManager->setWinId(window()->winId());
-    });
 }

 MainWindow::~MainWindow()
 {
-    saveConfig();
    delete m_lrcbar;
    delete ui;
 }
@ -131,12 +103,12 @@ void MainWindow::setAudioPropertyInfoForDisplay(int sampleRate, int bitrate, int
        }
    };

-    if (sampleRate > 0) {
+    if (sampleRate >= 0) {
        uiStrs << QString("%1 Hz").arg(sampleRate);
        tooltipStrs << tr("Sample Rate: %1 Hz").arg(sampleRate);
    }

-    if (bitrate > 0) {
+    if (bitrate >= 0) {
        uiStrs << QString("%1 Kbps").arg(bitrate);
        tooltipStrs << tr("Bitrate: %1 Kbps").arg(bitrate);
    }
@ -259,21 +231,6 @@ void MainWindow::dropEvent(QDropEvent *e)
        return;
    }

-    if (fileName.endsWith(".chp") || fileName.endsWith(".pbf")) {
-        QList<std::pair<qint64, QString>> chapters(PlaybackProgressIndicator::tryLoadSidecarChapterFile(fileName));
-        ui->playbackProgressIndicator->setChapters(chapters);
-        return;
-    }
-
-    if (fileName.endsWith(".m3u") || fileName.endsWith(".m3u8")) {
-        const QModelIndex & modelIndex = m_playlistManager->loadM3U8Playlist(urls.constFirst());
-        if (modelIndex.isValid()) {
-            loadByModelIndex(modelIndex);
-            play();
-        }
-        return;
-    }
-
    const QModelIndex & modelIndex = m_playlistManager->loadPlaylist(urls);
    if (modelIndex.isValid()) {
        loadByModelIndex(modelIndex);
@ -281,16 +238,6 @@ void MainWindow::dropEvent(QDropEvent *e)
    }
 }

-void MainWindow::contextMenuEvent(QContextMenuEvent *event)
-{
-    QMenu * menu = new QMenu;
-    menu->addAction(ui->actionHelp);
-    menu->exec(mapToGlobal(event->pos()));
-    menu->deleteLater();
-
-    return QMainWindow::contextMenuEvent(event);
-}
-
 void MainWindow::loadFile()
 {
    QStringList musicFolders(QStandardPaths::standardLocations(QStandardPaths::MusicLocation));
@ -305,22 +252,15 @@ void MainWindow::loadFile()
        urlList.append(QUrl::fromLocalFile(fileName));
    }

-    const QModelIndex & modelIndex = m_playlistManager->loadPlaylist(urlList);
-    loadByModelIndex(modelIndex);
-}
-
-void MainWindow::loadFile(const QUrl &url)
-{
-    const QString filePath = url.toLocalFile();
-    m_mediaPlayer->setSource(url);
-    m_lrcbar->loadLyrics(filePath);
-    QList<std::pair<qint64, QString>> chapters(PlaybackProgressIndicator::tryLoadChapters(filePath));
-    ui->playbackProgressIndicator->setChapters(chapters);
+    m_playlistManager->loadPlaylist(urlList);
+    m_mediaPlayer->setSource(urlList.first());
+    m_lrcbar->loadLyrics(urlList.first().toLocalFile());
 }

 void MainWindow::loadByModelIndex(const QModelIndex & index)
 {
-    loadFile(m_playlistManager->urlByIndex(index));
+    m_mediaPlayer->setSource(m_playlistManager->urlByIndex(index));
+    m_lrcbar->loadLyrics(m_playlistManager->localFileByIndex(index));
 }

 void MainWindow::play()
@ -372,6 +312,16 @@ void MainWindow::on_playBtn_clicked()
    }
 }

+QString MainWindow::ms2str(qint64 ms)
+{
+    QTime duaTime(QTime::fromMSecsSinceStartOfDay(ms));
+    if (duaTime.hour() > 0) {
+        return duaTime.toString("h:mm:ss");
+    } else {
+        return duaTime.toString("m:ss");
+    }
+}
+
 QList<QUrl> MainWindow::strlst2urllst(QStringList strlst)
 {
    QList<QUrl> urlList;
@ -398,6 +348,14 @@ void MainWindow::on_stopBtn_clicked()
    m_mediaPlayer->stop();
 }

+void MainWindow::on_playbackSlider_valueChanged(int value)
+{
+    qint64 currPos = m_mediaPlayer->duration() == 0 ? value : m_mediaPlayer->position() * ui->playbackSlider->maximum() / m_mediaPlayer->duration();
+    if (qAbs(currPos - value) > 2) {
+        m_mediaPlayer->setPosition(ui->playbackSlider->value() * 1.0 / ui->playbackSlider->maximum() * m_mediaPlayer->duration());
+    }
+}
+
 void MainWindow::on_prevBtn_clicked()
 {
    QModelIndex index(m_playlistManager->previousIndex());
@ -445,10 +403,6 @@ void MainWindow::initConnections()
        m_audioOutput->setDevice(m_mediaDevices->defaultAudioOutput());
    });

-    connect(ui->playbackProgressIndicator, &PlaybackProgressIndicator::seekingRequested, this, [=](qint64 pos){
-        m_mediaPlayer->setPosition(pos);
-    });
-
    connect(m_mediaPlayer, &QMediaPlayer::sourceChanged, this, [=](){
        QUrl fileUrl(m_mediaPlayer->source());

@ -466,8 +420,6 @@ void MainWindow::initConnections()
            if (!fileRef.isNull() && fileRef.audioProperties()) {
                TagLib::AudioProperties *prop = fileRef.audioProperties();
                setAudioPropertyInfoForDisplay(prop->sampleRate(), prop->bitrate(), prop->channels(), suffix);
-            } else {
-                qDebug() << "No Audio Properties from TagLib";
            }

            if (!fileRef.isNull() && fileRef.tag()) {
@ -475,10 +427,6 @@ void MainWindow::initConnections()
                setAudioMetadataForDisplay(QString::fromStdString(tag->title().to8Bit(true)),
                                           QString::fromStdString(tag->artist().to8Bit(true)),
                                           QString::fromStdString(tag->album().to8Bit(true)));
-                m_urlMissingTagLibMetadata.clear();
-            } else {
-                qDebug() << "No Audio Metadata from TagLib";
-                m_urlMissingTagLibMetadata = fileUrl;
            }
 #endif // NO_TAGLIB
        }
@ -490,17 +438,12 @@ void MainWindow::initConnections()
        // see `02  Yoiyami Hanabi.mp3`'s Title. So we don't use Qt's one if tablib is available.
        qDebug() << metadata.stringValue(QMediaMetaData::Title) << metadata.stringValue(QMediaMetaData::Author);
 #ifdef NO_TAGLIB
-        bool needMetadataFromQt = true;
-#else
-        bool needMetadataFromQt = m_urlMissingTagLibMetadata == m_mediaPlayer->source();
+        setAudioMetadataForDisplay(metadata.stringValue(QMediaMetaData::Title),
+                                   metadata.stringValue(QMediaMetaData::Author),
+                                   metadata.stringValue(QMediaMetaData::AlbumTitle));
+        setAudioPropertyInfoForDisplay(-1, metadata.value(QMediaMetaData::AudioBitRate).toInt() / 1000,
+                                       -1, metadata.stringValue(QMediaMetaData::FileFormat));
 #endif // NO_TAGLIB
-        if (needMetadataFromQt) {
-            setAudioMetadataForDisplay(metadata.stringValue(QMediaMetaData::Title),
-                                       metadata.stringValue(QMediaMetaData::Author),
-                                       metadata.stringValue(QMediaMetaData::AlbumTitle));
-            setAudioPropertyInfoForDisplay(-1, metadata.value(QMediaMetaData::AudioBitRate).toInt() / 1000,
-                                           -1, metadata.stringValue(QMediaMetaData::FileFormat));
-        }
        QVariant coverArt(metadata.value(QMediaMetaData::ThumbnailImage));
        if (!coverArt.isNull()) {
            ui->coverLabel->setPixmap(QPixmap::fromImage(coverArt.value<QImage>()));
@ -514,28 +457,11 @@ void MainWindow::initConnections()
    });

    connect(m_mediaPlayer, &QMediaPlayer::positionChanged, this, [=](qint64 pos) {
-        ui->nowTimeLabel->setText(PlaybackProgressIndicator::formatTime(pos));
+        ui->nowTimeLabel->setText(ms2str(pos));
        if (m_mediaPlayer->duration() != 0) {
-            ui->playbackProgressIndicator->setPosition(pos);
-            m_taskbarManager->setProgressValue(pos);
+            ui->playbackSlider->setSliderPosition(ui->playbackSlider->maximum() * pos / m_mediaPlayer->duration());
        }
        m_lrcbar->playbackPositionChanged(pos, m_mediaPlayer->duration());
-
-        static QString lastChapterName;
-        if (ui->playbackProgressIndicator->chapterModel()->rowCount() > 0) {
-            QString currentChapterName = ui->playbackProgressIndicator->currentChapterName();
-            if (currentChapterName != lastChapterName) {
-                ui->chapterNameBtn->setText(currentChapterName);
-                lastChapterName = currentChapterName;
-            }
-            ui->chapterNameBtn->setVisible(true);
-        } else {
-            if (!lastChapterName.isEmpty()) {
-                ui->chapterNameBtn->setText("");
-                lastChapterName.clear();
-            }
-            ui->chapterNameBtn->setVisible(false);
-        }
    });

    connect(m_audioOutput, &QAudioOutput::mutedChanged, this, [=](bool muted) {
@ -547,9 +473,7 @@ void MainWindow::initConnections()
    });

    connect(m_mediaPlayer, &QMediaPlayer::durationChanged, this, [=](qint64 dua) {
-        ui->playbackProgressIndicator->setDuration(dua);
-        m_taskbarManager->setProgressMaximum(dua);
-        ui->totalTimeLabel->setText(PlaybackProgressIndicator::formatTime(dua));
+        ui->totalTimeLabel->setText(ms2str(dua));
    });

    connect(m_mediaPlayer, &QMediaPlayer::playbackStateChanged, this, [=](QMediaPlayer::PlaybackState newState) {
@ -562,7 +486,6 @@ void MainWindow::initConnections()
            ui->playBtn->setIcon(QIcon(":/icons/icons/media-playback-start.png"));
            break;
        }
-        m_taskbarManager->setPlaybackState(newState);
    });

    connect(m_audioOutput, &QAudioOutput::volumeChanged, this, [=](float vol) {
@ -603,44 +526,14 @@ void MainWindow::initConnections()
        }
    });

-    connect(m_taskbarManager, &TaskBarManager::togglePlayback, this, [this](){
-        on_playBtn_clicked();
-    });
-
-    connect(m_taskbarManager, &TaskBarManager::skipBackward, this, [this](){
-        on_prevBtn_clicked();
-    });
-
-    connect(m_taskbarManager, &TaskBarManager::skipForward, this, [this](){
-        on_nextBtn_clicked();
-    });
-
-    connect(m_mediaPlayer, &QMediaPlayer::errorOccurred, this, [=](QMediaPlayer::Error error, const QString &errorString) {
+   connect(m_mediaPlayer, &QMediaPlayer::errorOccurred, this, [=](QMediaPlayer::Error error, const QString &errorString) {
        qDebug() << error << errorString;
-    });
-}
-
-void MainWindow::loadConfig()
-{
-    QDir configDir(QStandardPaths::writableLocation(QStandardPaths::AppConfigLocation));
-    QSettings settings(configDir.filePath("settings.ini"), QSettings::IniFormat);
-    ui->volumeSlider->setValue(settings.value("volume", 100).toInt());
-}
-
-void MainWindow::saveConfig()
-{
-    QDir configDir(QStandardPaths::writableLocation(QStandardPaths::AppConfigLocation));
-    if (!configDir.exists()) {
-        configDir.mkpath(".");
-    }
-    QSettings settings(configDir.filePath("settings.ini"), QSettings::IniFormat);
-    settings.setValue("volume", ui->volumeSlider->value());
+   });
 }

 void MainWindow::loadSkinData()
 {
-    QDir configDir(QStandardPaths::writableLocation(QStandardPaths::AppConfigLocation));
-    QFile file(configDir.filePath("skin.dat"));
+    QFile file(QStandardPaths::writableLocation(QStandardPaths::AppConfigLocation) + "/skin.dat");
    bool canOpen = file.open(QIODevice::ReadOnly);
    if (!canOpen) return;
    QDataStream stream(&file);
@ -697,16 +590,7 @@ void MainWindow::on_setSkinBtn_clicked()

 void MainWindow::on_playListBtn_clicked()
 {
-    if (size().height() < 200) {
-        setFixedSize(fullSize);
-        ui->pluginStackedWidget->setCurrentWidget(ui->playlistViewPage);
-    } else {
-        if (ui->pluginStackedWidget->currentWidget() == ui->playlistViewPage) {
-            setFixedSize(miniSize);
-        } else {
-            ui->pluginStackedWidget->setCurrentWidget(ui->playlistViewPage);
-        }
-    }
+    setFixedSize(size().height() < 200 ? fullSize : miniSize);
 }

 void MainWindow::on_playlistView_activated(const QModelIndex &index)
@ -725,37 +609,6 @@ void MainWindow::on_lrcBtn_clicked()
    }
 }

-void MainWindow::on_chapterlistView_activated(const QModelIndex &index)
-{
-    if (!index.isValid()) return;
-
-    QModelIndex timeColumnIndex = index.sibling(index.row(), 0);
-    QStandardItem* timeItem = ui->playbackProgressIndicator->chapterModel()->itemFromIndex(timeColumnIndex);
-    if (!timeItem) return;
-
-    qint64 chapterStartTime = timeItem->data(PlaybackProgressIndicator::StartTimeMsRole).toLongLong();
-    m_mediaPlayer->setPosition(chapterStartTime);
-}
-
-void MainWindow::on_chapterNameBtn_clicked()
-{
-    if (size().height() < 200) {
-        setFixedSize(fullSize);
-    }
-    ui->pluginStackedWidget->setCurrentWidget(ui->chaptersViewPage);
-    if (ui->playbackProgressIndicator->chapterModel()->rowCount() > 0) {
-        const QModelIndex & curChapterItem = ui->playbackProgressIndicator->currentChapterItem();
-        if (curChapterItem.isValid()) {
-            ui->chapterlistView->setCurrentIndex(curChapterItem);
-            ui->chapterlistView->scrollTo(curChapterItem, QAbstractItemView::EnsureVisible);
-        }
-    }
-}
-
-void MainWindow::on_actionOpen_triggered()
-{
-    loadFile();
-}

 void MainWindow::on_actionHelp_triggered()
 {
@ -779,23 +632,12 @@ void MainWindow::on_actionHelp_triggered()
 #ifdef HAVE_KCODECS
        QStringLiteral("- [KCodecs](https://invent.kde.org/frameworks/kcodecs)\n") %
 #endif // NO_TAGLIB
-#ifdef HAVE_FFMPEG
-        QStringLiteral("- [FFmpeg](https://ffmpeg.org/)\n") %
-#endif // HAVE_FFMPEG
        "\n"
        "[Source Code](https://github.com/BLumia/pineapple-music)\n"
        "\n"
-        "Copyright &copy; 2025 [BLumia](https://github.com/BLumia/)"
+        "Copyright &copy; 2024 [BLumia](https://github.com/BLumia/)"
        );
    infoBox.setTextFormat(Qt::MarkdownText);
    infoBox.exec();
 }

-QGraphicsDropShadowEffect *MainWindow::createLabelShadowEffect()
-{
-    QGraphicsDropShadowEffect * effect = new QGraphicsDropShadowEffect(this);
-    effect->setBlurRadius(3);
-    effect->setColor(QColor(0, 0, 0, 180));
-    effect->setOffset(1, 1);
-    return effect;
-}
--- a/mainwindow.h
+++ b/mainwindow.h
@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: 2025 Gary Wang <opensource@blumia.net>
+// SPDX-FileCopyrightText: 2024 Gary Wang <git@blumia.net>
 //
 // SPDX-License-Identifier: MIT

@ -7,7 +7,6 @@

 #include <QMainWindow>
 #include <QVariant>
-#include <QUrl>

 QT_BEGIN_NAMESPACE
 namespace Ui { class MainWindow; }
@ -16,13 +15,11 @@ class QMediaDevices;
 class QMediaPlayer;
 class QAudioOutput;
 class QPropertyAnimation;
-class QGraphicsDropShadowEffect;
 QT_END_NAMESPACE

 class FFTSpectrum;
 class LrcBar;
 class PlaylistManager;
-class TaskBarManager;
 class MainWindow : public QMainWindow
 {
    Q_OBJECT
@ -55,10 +52,8 @@ protected:
    void mouseReleaseEvent(QMouseEvent *event) override;
    void dragEnterEvent(QDragEnterEvent *e) override;
    void dropEvent(QDropEvent *e) override;
-    void contextMenuEvent(QContextMenuEvent *event) override;

    void loadFile();
-    void loadFile(const QUrl &url);
    void loadByModelIndex(const QModelIndex &index);
    void play();

@ -72,6 +67,7 @@ private slots:
    void on_playBtn_clicked();
    void on_volumeSlider_valueChanged(int value);
    void on_stopBtn_clicked();
+    void on_playbackSlider_valueChanged(int value);
    void on_prevBtn_clicked();
    void on_nextBtn_clicked();
    void on_volumeBtn_clicked();
@ -80,22 +76,16 @@ private slots:
    void on_playListBtn_clicked();
    void on_playlistView_activated(const QModelIndex &index);
    void on_lrcBtn_clicked();
-    void on_chapterlistView_activated(const QModelIndex &index);
-    void on_chapterNameBtn_clicked();
-    void on_actionOpen_triggered();
    void on_actionHelp_triggered();

 signals:
    void playbackModeChanged(enum PlaybackMode mode);

 private:
-    QGraphicsDropShadowEffect * createLabelShadowEffect();
-
    bool m_clickedOnWindow = false;
    bool m_playbackSliderPressed = false;
    QLinearGradient m_bgLinearGradient;
    QPixmap m_skin;
-    QUrl m_urlMissingTagLibMetadata;
    enum PlaybackMode m_playbackMode = CurrentItemInLoop;

    Ui::MainWindow *ui;
@ -107,13 +97,10 @@ private:
    LrcBar *m_lrcbar;
    QPropertyAnimation *m_fadeOutAnimation;
    PlaylistManager *m_playlistManager;
-    TaskBarManager *m_taskbarManager;

    void initUiAndAnimation();
    void initConnections();

-    void loadConfig();
-    void saveConfig();
    void loadSkinData();
    void saveSkinData();

--- a/mainwindow.ui
+++ b/mainwindow.ui
@ -72,7 +72,6 @@ QSlider::add-page:vertical {
 /****** PushButton ******/

 QPushButton {
-	color: white;
 	border: 0px solid grey;
 	background-color: transparent;
 }
@ -107,20 +106,7 @@ QLabel#coverLabel {
 /****** ListView ******/

 QListView {
-	color: white;
 	background: rgba(0, 0, 0, 50);
-}
-
-/****** TreeView ******/
-
-QTreeView {
-	color: white;
-	background: rgba(0, 0, 0, 50);
-}
-
-QHeaderView {
-	color: white;
-	background-color: rgba(200, 200, 200, 50);
 }</string>
  </property>
  <property name="locale">
@ -229,7 +215,7 @@ QHeaderView {
           <item>
            <spacer name="horizontalSpacer">
             <property name="orientation">
-              <enum>Qt::Horizontal</enum>
+              <enum>Qt::Orientation::Horizontal</enum>
             </property>
             <property name="sizeHint" stdset="0">
              <size>
@ -307,7 +293,7 @@ QHeaderView {
         <item>
          <layout class="QVBoxLayout" name="playerPanelLayout">
           <property name="sizeConstraint">
-            <enum>QLayout::SetDefaultConstraint</enum>
+            <enum>QLayout::SizeConstraint::SetDefaultConstraint</enum>
           </property>
           <property name="rightMargin">
            <number>10</number>
@ -370,33 +356,27 @@ QHeaderView {
               </property>
              </widget>
             </item>
-             <item>
-              <widget class="QPushButton" name="chapterNameBtn">
-               <property name="sizePolicy">
-                <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
-                 <horstretch>0</horstretch>
-                 <verstretch>0</verstretch>
-                </sizepolicy>
-               </property>
-               <property name="text">
-                <string/>
-               </property>
-              </widget>
-             </item>
             <item>
              <widget class="QLabel" name="totalTimeLabel">
               <property name="text">
                <string notr="true">0:00</string>
               </property>
               <property name="alignment">
-                <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+                <set>Qt::AlignmentFlag::AlignRight|Qt::AlignmentFlag::AlignTrailing|Qt::AlignmentFlag::AlignVCenter</set>
               </property>
              </widget>
             </item>
            </layout>
           </item>
           <item>
-            <widget class="PlaybackProgressIndicator" name="playbackProgressIndicator" native="true"/>
+            <widget class="SeekableSlider" name="playbackSlider">
+             <property name="maximum">
+              <number>1000</number>
+             </property>
+             <property name="orientation">
+              <enum>Qt::Orientation::Horizontal</enum>
+             </property>
+            </widget>
           </item>
           <item>
            <layout class="QHBoxLayout" name="playbackControlLayout">
@ -624,7 +604,7 @@ QHeaderView {
                <number>100</number>
               </property>
               <property name="orientation">
-                <enum>Qt::Horizontal</enum>
+                <enum>Qt::Orientation::Horizontal</enum>
               </property>
              </widget>
             </item>
@ -651,10 +631,7 @@ QHeaderView {
        <height>0</height>
       </size>
      </property>
-      <property name="currentIndex">
-       <number>1</number>
-      </property>
-      <widget class="QWidget" name="playlistViewPage">
+      <widget class="QWidget" name="pluginStackedWidgetPage1">
       <layout class="QVBoxLayout" name="verticalLayout_2">
        <property name="spacing">
         <number>0</number>
@ -676,62 +653,19 @@ QHeaderView {
        </item>
       </layout>
      </widget>
-      <widget class="QWidget" name="chaptersViewPage">
-       <layout class="QVBoxLayout" name="verticalLayout_3">
-        <property name="leftMargin">
-         <number>4</number>
-        </property>
-        <property name="topMargin">
-         <number>0</number>
-        </property>
-        <property name="rightMargin">
-         <number>4</number>
-        </property>
-        <property name="bottomMargin">
-         <number>4</number>
-        </property>
-        <item>
-         <widget class="QTreeView" name="chapterlistView">
-          <property name="editTriggers">
-           <set>QAbstractItemView::NoEditTriggers</set>
-          </property>
-         </widget>
-        </item>
-       </layout>
-      </widget>
     </widget>
    </item>
   </layout>
  </widget>
  <action name="actionHelp">
-   <property name="icon">
-    <iconset theme="system-help"/>
-   </property>
   <property name="text">
-    <string>About</string>
-   </property>
-   <property name="toolTip">
-    <string>About</string>
+    <string>help</string>
   </property>
   <property name="shortcut">
-    <string notr="true">F1</string>
+    <string>F1</string>
   </property>
   <property name="menuRole">
-    <enum>QAction::AboutRole</enum>
-   </property>
-  </action>
-  <action name="actionOpen">
-   <property name="icon">
-    <iconset theme="document-open"/>
-   </property>
-   <property name="text">
-    <string>Open</string>
-   </property>
-   <property name="shortcut">
-    <string notr="true">Ctrl+O</string>
-   </property>
-   <property name="menuRole">
-    <enum>QAction::NoRole</enum>
+    <enum>QAction::MenuRole::NoRole</enum>
   </property>
  </action>
 </widget>
@ -741,12 +675,6 @@ QHeaderView {
   <extends>QSlider</extends>
   <header>seekableslider.h</header>
  </customwidget>
-  <customwidget>
-   <class>PlaybackProgressIndicator</class>
-   <extends>QWidget</extends>
-   <header>playbackprogressindicator.h</header>
-   <container>1</container>
-  </customwidget>
 </customwidgets>
 <resources>
  <include location="resources.qrc"/>
--- a/playbackprogressindicator.cpp
+++ b/playbackprogressindicator.cpp
@ -1,362 +0,0 @@
-// SPDX-FileCopyrightText: 2025 Gary Wang <git@blumia.net>
-//
-// SPDX-License-Identifier: MIT
-
-#include "playbackprogressindicator.h"
-
-#include <QDir>
-#include <QFile>
-#include <QFileInfo>
-#include <QPainter>
-#include <QPainterPath>
-#include <QRegularExpression>
-
-#ifdef HAVE_FFMPEG
-extern "C" {
-#include <libavformat/avformat.h>
-#include <libavutil/avutil.h>
-#include <libavutil/dict.h>
-#include <libavutil/time.h> // Contains AV_TIME_BASE and AV_TIME_BASE_Q
-} // extern "C"
-#endif // HAVE_FFMPEG
-
-PlaybackProgressIndicator::PlaybackProgressIndicator(QWidget *parent) :
-    QWidget(parent)
-{
-}
-
-QModelIndex PlaybackProgressIndicator::currentChapterItem() const
-{
-    int currentChapterIndex = -1;
-
-    for (int i = 0; i < m_chapterModel.rowCount(); i++) {
-        QStandardItem* timeItem = m_chapterModel.item(i, 0);
-        qint64 chapterStartTime = timeItem->data(PlaybackProgressIndicator::StartTimeMsRole).toLongLong();
-
-        if (m_position >= chapterStartTime) {
-            currentChapterIndex = i;
-        } else {
-            break;
-        }
-    }
-
-    if (currentChapterIndex >= 0) {
-        return m_chapterModel.index(currentChapterIndex, 0);
-    }
-
-    return {};
-}
-
-QString PlaybackProgressIndicator::currentChapterName() const
-{
-    const QModelIndex timeIndex(currentChapterItem());
-    if (timeIndex.isValid()) {
-        return m_chapterModel.item(timeIndex.row(), 1)->text();
-    }
-    return {};
-}
-
-void PlaybackProgressIndicator::setPosition(qint64 pos)
-{
-    m_position = pos;
-    emit positionChanged(m_position);
-}
-
-void PlaybackProgressIndicator::setDuration(qint64 dur)
-{
-    m_duration = dur;
-    emit durationChanged(m_duration);
-}
-
-QString PlaybackProgressIndicator::formatTime(qint64 milliseconds)
-{
-    QTime duaTime(QTime::fromMSecsSinceStartOfDay(milliseconds));
-    if (duaTime.hour() > 0) {
-        return duaTime.toString("h:mm:ss");
-    } else {
-        return duaTime.toString("m:ss");
-    }
-}
-
-void PlaybackProgressIndicator::setChapters(QList<std::pair<qint64, QString> > chapters)
-{
-    m_chapterModel.clear();
-
-    m_chapterModel.setHorizontalHeaderLabels(QStringList() << tr("Time") << tr("Chapter Name"));
-
-    for (const std::pair<qint64, QString> & chapter : chapters) {
-        QList<QStandardItem*> row;
-
-        QStandardItem * timeItem = new QStandardItem(formatTime(chapter.first));
-        timeItem->setData(chapter.first, StartTimeMsRole);
-        row.append(timeItem);
-
-        QStandardItem * chapterItem = new QStandardItem(chapter.second);
-        chapterItem->setData(chapter.first, StartTimeMsRole);
-        row.append(chapterItem);
-
-        m_chapterModel.appendRow(row);
-    }
-    update();
-}
-
-QList<std::pair<qint64, QString> > PlaybackProgressIndicator::tryLoadChapters(const QString &filePath)
-{
-    auto chapters = tryLoadSidecarChapterFile(filePath);
-    if (chapters.size() == 0) {
-        chapters = tryLoadChaptersFromMetadata(filePath);
-    }
-    return chapters;
-}
-
-QList<std::pair<qint64, QString> > PlaybackProgressIndicator::tryLoadSidecarChapterFile(const QString &filePath)
-{
-    if (filePath.endsWith(".chp", Qt::CaseInsensitive)) {
-        return parseCHPChapterFile(filePath);
-    } else if (filePath.endsWith(".pbf", Qt::CaseInsensitive)) {
-        return parsePBFChapterFile(filePath);
-    }
-
-    QFileInfo fileInfo(filePath);
-    fileInfo.setFile(fileInfo.dir().filePath(fileInfo.completeBaseName() + ".chp"));
-    if (fileInfo.exists()) {
-        return parseCHPChapterFile(fileInfo.absoluteFilePath());
-    }
-    fileInfo.setFile(fileInfo.dir().filePath(fileInfo.completeBaseName() + ".pbf"));
-    if (fileInfo.exists()) {
-        return parsePBFChapterFile(fileInfo.absoluteFilePath());
-    }
-    fileInfo.setFile(filePath + ".chp");
-    if (fileInfo.exists()) {
-        return parseCHPChapterFile(fileInfo.absoluteFilePath());
-    }
-    return {};
-}
-
-#ifdef HAVE_FFMPEG
-
-// Helper function to convert FFmpeg time (in time_base units) to milliseconds
-qint64 convertTimestampToMilliseconds(int64_t timestamp, AVRational time_base) {
-    // Convert to seconds first, then to milliseconds and cast to qint64
-    return static_cast<qint64>((double)timestamp * av_q2d(time_base) * 1000.0);
-}
-
-// Helper function to print FFmpeg errors
-void printFFmpegError(int errnum) {
-    char errbuf[AV_ERROR_MAX_STRING_SIZE];
-    av_strerror(errnum, errbuf, sizeof(errbuf));
-    qCritical() << "FFmpeg error:" << errbuf;
-}
-
-#endif // HAVE_FFMPEG
-
-QList<std::pair<qint64, QString> > PlaybackProgressIndicator::tryLoadChaptersFromMetadata(const QString &filePath)
-{
-#ifdef HAVE_FFMPEG
-    if (!QFile::exists(filePath)) {
-        qCritical() << "Error: File not found" << filePath;
-        return {};
-    }
-
-    AVFormatContext* format_ctx = nullptr; // FFmpeg format context
-    int ret = 0; // Return value for FFmpeg functions
-
-    qInfo() << "Attempting to open file:" << filePath;
-
-    // Open the input file and read the header.
-    // The last two arguments (AVInputFormat*, AVDictionary**) are optional.
-    // Passing nullptr for them means FFmpeg will try to guess the format
-    // and no options will be passed to the demuxer.
-    ret = avformat_open_input(&format_ctx, filePath.toUtf8().constData(), nullptr, nullptr);
-    if (ret < 0) {
-        qCritical() << "Could not open input file:" << filePath;
-        printFFmpegError(ret);
-        return {};
-    }
-    qInfo() << "File opened successfully.";
-
-    // Read stream information from the file.
-    // This populates format_ctx->streams and other metadata, including chapters.
-    ret = avformat_find_stream_info(format_ctx, nullptr);
-    if (ret < 0) {
-        qCritical() << "Could not find stream information for file:" << filePath;
-        printFFmpegError(ret);
-        avformat_close_input(&format_ctx); // Close the context before returning
-        return {};
-    }
-    qInfo() << "Stream information found.";
-
-    QList<std::pair<qint64, QString>> chapterList;
-
-    // Check if there are any chapters
-    if (format_ctx->nb_chapters == 0) {
-        qInfo() << "No chapters found in file:" << filePath;
-    } else {
-        qInfo() << "Found" << format_ctx->nb_chapters << "chapters.";
-        // Iterate through each chapter
-        for (unsigned int i = 0; i < format_ctx->nb_chapters; ++i) {
-            AVChapter* chapter = format_ctx->chapters[i];
-
-            // Chapter timestamps are typically in AV_TIME_BASE units by default
-            // unless the chapter itself has a specific time_base.
-            // For simplicity and common cases, we use AV_TIME_BASE_Q.
-            qint64 start_ms = convertTimestampToMilliseconds(chapter->start, chapter->time_base);
-
-            // Get the chapter title from its metadata.
-            // av_dict_get(dictionary, key, prev, flags)
-            // prev is used for iterating through multiple entries with the same key,
-            // we want the first one so we pass nullptr. flags=0 for case-insensitive.
-            AVDictionaryEntry* title_tag = av_dict_get(chapter->metadata, "title", nullptr, 0);
-            QString chapter_title = (title_tag && title_tag->value) ? QString::fromUtf8(title_tag->value) : "Untitled Chapter";
-
-            chapterList.append(std::make_pair(start_ms, chapter_title));
-        }
-    }
-
-    // Close the input file.
-    // This also frees the format_ctx and associated data.
-    avformat_close_input(&format_ctx);
-    qInfo() << "File closed.";
-
-    return chapterList;
-#else
-    qInfo() << "FFmpeg not found during build.";
-    return {};
-#endif // HAVE_FFMPEG
-}
-
-QList<std::pair<qint64, QString> > PlaybackProgressIndicator::parseCHPChapterFile(const QString &filePath)
-{
-    QList<std::pair<qint64, QString>> chapters;
-    QFile file(filePath);
-    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
-        return chapters;
-    }
-
-    QTextStream in(&file);
-    QRegularExpression timeRegex(R"((\d{1,2}):(\d{2})(?::(\d{2}))?(?:\.(\d{1,3}))?)");
-
-    while (!in.atEnd()) {
-        QString line = in.readLine().trimmed();
-        QRegularExpressionMatch match = timeRegex.match(line);
-        if (match.hasMatch()) {
-            int hours = match.capturedView(3).isEmpty() ? 0 : match.capturedView(1).toInt();
-            int minutes = match.capturedView(3).isEmpty() ? match.capturedView(1).toInt() : match.capturedView(2).toInt();
-            int seconds = match.capturedView(3).isEmpty() ? match.capturedView(2).toInt() : match.capturedView(3).toInt();
-            int milliseconds = 0;
-
-            QStringView millisecondsStr(match.capturedView(4));
-            if (!millisecondsStr.isEmpty()) {
-                milliseconds = millisecondsStr.toInt() * pow(10, 3 - millisecondsStr.length());
-            }
-
-            qint64 totalMilliseconds = (hours * 3600 + minutes * 60 + seconds) * 1000 + milliseconds;
-
-            QString chapterTitle = line.mid(match.capturedLength()).trimmed();
-            chapters.append(std::make_pair(totalMilliseconds, chapterTitle));
-        }
-    }
-
-    file.close();
-    return chapters;
-}
-
-QList<std::pair<qint64, QString> > PlaybackProgressIndicator::parsePBFChapterFile(const QString &filePath)
-{
-    QList<std::pair<qint64, QString>> chapters;
-    QFile file(filePath);
-    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
-        return chapters;
-    }
-
-    QTextStream in(&file);
-    QRegularExpression chapterRegex(R"(^\d+=(\d+)\*([^*]*)\*.*$)");
-
-    while (!in.atEnd()) {
-        QString line = in.readLine().trimmed();
-        QRegularExpressionMatch match = chapterRegex.match(line);
-        if (match.hasMatch()) {
-            qint64 timestamp = match.captured(1).toLongLong();
-            QString title = match.captured(2).trimmed();
-            chapters.append(std::make_pair(timestamp, title));
-        }
-    }
-
-    file.close();
-    return chapters;
-}
-
-void PlaybackProgressIndicator::paintEvent(QPaintEvent *event)
-{
-    constexpr int progressBarHeight = 6;
-    constexpr QColor activeColor = QColor(85, 170, 0);
-    const QPointF topLeft(0, height() / 2.0 - progressBarHeight / 2.0);
-    const QSizeF barSize(width(), progressBarHeight);
-
-    const float currentProgress = m_duration <= 0 ? 0 : (m_seekingPosition >= 0 ? m_seekingPosition : m_position) / (float)m_duration;
-    const QSizeF progressSize(width() * currentProgress, progressBarHeight);
-
-    QPainterPath theProgress;
-    theProgress.addRoundedRect(QRectF(topLeft, progressSize), progressBarHeight / 2, progressBarHeight / 2);
-
-    QPainter painter(this);
-    painter.setRenderHint(QPainter::Antialiasing);
-    painter.save();
-
-    // the bar itself
-    painter.setPen(Qt::gray);
-    painter.drawRoundedRect(QRectF(topLeft, barSize), progressBarHeight / 2, progressBarHeight / 2);
-    painter.fillPath(theProgress, activeColor);
-
-    // progress
-    painter.setPen(activeColor);
-    painter.drawPath(theProgress);
-
-    // chapter markers
-    if (m_duration > 0) {
-        painter.setPen(Qt::lightGray);
-        for (int i = 0; i < m_chapterModel.rowCount(); i++) {
-            qint64 chapterStartTime = m_chapterModel.item(i)->data(StartTimeMsRole).toInt();
-            if (chapterStartTime == 0) continue;
-            if (chapterStartTime > m_duration) break;
-            float chapterPercent = chapterStartTime / (float)m_duration;
-            float chapterPosX = width() * chapterPercent;
-            painter.drawLine(topLeft + QPoint(chapterPosX, 0),
-                             topLeft + QPoint(chapterPosX, progressBarHeight));
-        }
-    }
-
-    painter.restore();
-}
-
-void PlaybackProgressIndicator::mousePressEvent(QMouseEvent *event)
-{
-    if (m_duration > 0) {
-        event->accept();
-    } else {
-        return QWidget::mousePressEvent(event);
-    }
-}
-
-void PlaybackProgressIndicator::mouseMoveEvent(QMouseEvent *event)
-{
-    if (m_duration > 0) {
-        m_seekingPosition = event->position().x() * m_duration / width();
-        if (m_seekOnMove) {
-            emit seekingRequested(m_seekingPosition);
-        }
-        update();
-    }
-    return QWidget::mouseMoveEvent(event);
-}
-
-void PlaybackProgressIndicator::mouseReleaseEvent(QMouseEvent *event)
-{
-    if (m_duration > 0) {
-        int seekingPosition = event->position().x() * m_duration / width();
-        m_seekingPosition = -1;
-        emit seekingRequested(seekingPosition);
-    }
-    update();
-    return QWidget::mouseReleaseEvent(event);
-}
--- a/playbackprogressindicator.h
+++ b/playbackprogressindicator.h
@ -1,63 +0,0 @@
-// SPDX-FileCopyrightText: 2025 Gary Wang <git@blumia.net>
-//
-// SPDX-License-Identifier: MIT
-
-#pragma once
-
-#include <QWidget>
-#include <QMouseEvent>
-#include <QStandardItemModel>
-
-class PlaybackProgressIndicator : public QWidget
-{
-    Q_OBJECT
-
-    Q_PROPERTY(bool seekOnMove MEMBER m_seekOnMove NOTIFY seekOnMoveChanged)
-    Q_PROPERTY(qint64 position MEMBER m_position NOTIFY positionChanged)
-    Q_PROPERTY(qint64 duration MEMBER m_duration NOTIFY durationChanged)
-public:
-    enum Roles {
-        ChapterTitleRole = Qt::DisplayRole,
-        StartTimeMsRole = Qt::UserRole + 1,
-    };
-
-    explicit PlaybackProgressIndicator(QWidget *parent = nullptr);
-    ~PlaybackProgressIndicator() = default;
-
-    QStandardItemModel* chapterModel() { return &m_chapterModel; }
-    QModelIndex currentChapterItem() const;
-    QString currentChapterName() const;
-
-    void setPosition(qint64 pos);
-    void setDuration(qint64 dur);
-    void setChapters(QList<std::pair<qint64, QString>> chapters);
-
-    static QString formatTime(qint64 milliseconds);
-    static QList<std::pair<qint64, QString>> tryLoadChapters(const QString & filePath);
-    static QList<std::pair<qint64, QString>> tryLoadSidecarChapterFile(const QString & filePath);
-    static QList<std::pair<qint64, QString>> tryLoadChaptersFromMetadata(const QString & filePath);
-    static QList<std::pair<qint64, QString>> parseCHPChapterFile(const QString & filePath);
-    static QList<std::pair<qint64, QString>> parsePBFChapterFile(const QString & filePath);
-
-signals:
-    void seekOnMoveChanged(bool sow);
-    void positionChanged(qint64 newPosition);
-    void durationChanged(qint64 newDuration);
-    void seekingRequested(qint64 position);
-
-public slots:
-
-protected:
-    void paintEvent(QPaintEvent *event) override;
-    void mousePressEvent(QMouseEvent *event) override;
-    void mouseMoveEvent(QMouseEvent *event) override;
-    void mouseReleaseEvent(QMouseEvent *event) override;
-
-private:
-    bool m_seekOnMove = true;
-    qint64 m_position = -1;
-    qint64 m_seekingPosition = -1;
-    qint64 m_duration = -1;
-    QStandardItemModel m_chapterModel;
-};
-
--- a/playlistmanager.cpp
+++ b/playlistmanager.cpp
@ -1,283 +1,255 @@
-// SPDX-FileCopyrightText: 2025 Gary Wang <git@blumia.net>
-//
-// SPDX-License-Identifier: MIT
-
-#include "playlistmanager.h"
-
-#include <QCollator>
-#include <QDir>
-#include <QFileInfo>
-#include <QUrl>
-
-PlaylistModel::PlaylistModel(QObject *parent)
-    : QAbstractListModel(parent)
-{
-
-}
-
-PlaylistModel::~PlaylistModel()
-= default;
-
-void PlaylistModel::setPlaylist(const QList<QUrl> &urls)
-{
-    beginResetModel();
-    m_playlist = urls;
-    endResetModel();
-}
-
-QModelIndex PlaylistModel::loadPlaylist(const QList<QUrl> & urls)
-{
-    if (urls.isEmpty()) return {};
-    if (urls.count() == 1) {
-        return loadPlaylist(urls.constFirst());
-    } else {
-        setPlaylist(urls);
-        return index(0);
-    }
-}
-
-QModelIndex PlaylistModel::loadPlaylist(const QUrl &url)
-{
-    QFileInfo info(url.toLocalFile());
-    QDir dir(info.path());
-    QString && currentFileName = info.fileName();
-
-    if (dir.path() == m_currentDir) {
-        int idx = indexOf(url);
-        return idx == -1 ? appendToPlaylist(url) : index(idx);
-    }
-
-    QStringList entryList = dir.entryList(
-        m_autoLoadSuffixes,
-        QDir::Files | QDir::NoSymLinks, QDir::NoSort);
-
-    QCollator collator;
-    collator.setNumericMode(true);
-
-    std::sort(entryList.begin(), entryList.end(), collator);
-
-    QList<QUrl> playlist;
-
-    int idx = -1;
-    for (int i = 0; i < entryList.count(); i++) {
-        const QString & fileName = entryList.at(i);
-        const QString & oneEntry = dir.absoluteFilePath(fileName);
-        const QUrl & url = QUrl::fromLocalFile(oneEntry);
-        playlist.append(url);
-        if (fileName == currentFileName) {
-            idx = i;
-        }
-    }
-    if (idx == -1) {
-        idx = playlist.count();
-        playlist.append(url);
-    }
-    m_currentDir = dir.path();
-
-    setPlaylist(playlist);
-
-    return index(idx);
-}
-
-QModelIndex PlaylistModel::appendToPlaylist(const QUrl &url)
-{
-    const int lastIndex = rowCount();
-    beginInsertRows(QModelIndex(), lastIndex, lastIndex);
-    m_playlist.append(url);
-    endInsertRows();
-    return index(lastIndex);
-}
-
-bool PlaylistModel::removeAt(int index)
-{
-    if (index < 0 || index >= rowCount()) return false;
-    beginRemoveRows(QModelIndex(), index, index);
-    m_playlist.removeAt(index);
-    endRemoveRows();
-    return true;
-}
-
-int PlaylistModel::indexOf(const QUrl &url) const
-{
-    return m_playlist.indexOf(url);
-}
-
-QUrl PlaylistModel::urlByIndex(int index) const
-{
-    return m_playlist.value(index);
-}
-
-QStringList PlaylistModel::autoLoadFilterSuffixes() const
-{
-    return m_autoLoadSuffixes;
-}
-
-QHash<int, QByteArray> PlaylistModel::roleNames() const
-{
-    QHash<int, QByteArray> result = QAbstractListModel::roleNames();
-    result.insert(UrlRole, "url");
-    return result;
-}
-
-int PlaylistModel::rowCount(const QModelIndex &parent) const
-{
-    return m_playlist.count();
-}
-
-QVariant PlaylistModel::data(const QModelIndex &index, int role) const
-{
-    if (!index.isValid()) return {};
-
-    switch (role) {
-    case Qt::DisplayRole:
-        return m_playlist.at(index.row()).fileName();
-    case UrlRole:
-        return m_playlist.at(index.row());
-    }
-
-    return {};
-}
-
-PlaylistManager::PlaylistManager(QObject *parent)
-    : QObject(parent)
-{
-    connect(&m_model, &PlaylistModel::rowsRemoved, this,
-            [this](const QModelIndex &, int, int) {
-                if (m_model.rowCount() <= m_currentIndex) {
-                    setProperty("currentIndex", m_currentIndex - 1);
-                }
-            });
-
-    auto onRowCountChanged = [this](){
-        emit totalCountChanged(m_model.rowCount());
-    };
-
-    connect(&m_model, &PlaylistModel::rowsInserted, this, onRowCountChanged);
-    connect(&m_model, &PlaylistModel::rowsRemoved, this, onRowCountChanged);
-    connect(&m_model, &PlaylistModel::modelReset, this, onRowCountChanged);
-}
-
-PlaylistManager::~PlaylistManager()
-{
-
-}
-
-PlaylistModel *PlaylistManager::model()
-{
-    return &m_model;
-}
-
-void PlaylistManager::setPlaylist(const QList<QUrl> &urls)
-{
-    m_model.setPlaylist(urls);
-}
-
-QModelIndex PlaylistManager::loadPlaylist(const QList<QUrl> &urls)
-{
-    QModelIndex idx = m_model.loadPlaylist(urls);
-    setProperty("currentIndex", idx.row());
-    return idx;
-}
-
-QModelIndex PlaylistManager::loadPlaylist(const QUrl &url)
-{
-    QModelIndex idx = m_model.loadPlaylist(url);
-    setProperty("currentIndex", idx.row());
-    return idx;
-}
-
-QModelIndex PlaylistManager::loadM3U8Playlist(const QUrl &url)
-{
-    QFile file(url.toLocalFile());
-    if (file.open(QIODevice::ReadOnly | QIODevice::Text)) {
-        QList<QUrl> urls;
-        while (!file.atEnd()) {
-            QString line = file.readLine();
-            if (line.startsWith('#')) {
-                continue;
-            }
-            QFileInfo fileInfo(file);
-            QUrl item = QUrl::fromUserInput(line, fileInfo.absolutePath());
-            urls.append(item);
-        }
-        return loadPlaylist(urls);
-    } else {
-        return {};
-    }
-}
-
-int PlaylistManager::totalCount() const
-{
-    return m_model.rowCount();
-}
-
-QModelIndex PlaylistManager::previousIndex() const
-{
-    int count = totalCount();
-    if (count == 0) return {};
-
-    return m_model.index(isFirstIndex() ? count - 1 : m_currentIndex - 1);
-}
-
-QModelIndex PlaylistManager::nextIndex() const
-{
-    int count = totalCount();
-    if (count == 0) return {};
-
-    return m_model.index(isLastIndex() ? 0 : m_currentIndex + 1);
-}
-
-QModelIndex PlaylistManager::curIndex() const
-{
-    return m_model.index(m_currentIndex);
-}
-
-bool PlaylistManager::isFirstIndex() const
-{
-    return m_currentIndex == 0;
-}
-
-bool PlaylistManager::isLastIndex() const
-{
-    return m_currentIndex + 1 == totalCount();
-}
-
-void PlaylistManager::setCurrentIndex(const QModelIndex &index)
-{
-    if (index.isValid() && index.row() >= 0 && index.row() < totalCount()) {
-        setProperty("currentIndex", index.row());
-    }
-}
-
-QUrl PlaylistManager::urlByIndex(const QModelIndex &index)
-{
-    return m_model.urlByIndex(index.row());
-}
-
-QString PlaylistManager::localFileByIndex(const QModelIndex &index)
-{
-    return urlByIndex(index).toLocalFile();
-}
-
-bool PlaylistManager::removeAt(const QModelIndex &index)
-{
-    return m_model.removeAt(index.row());
-}
-
-void PlaylistManager::setAutoLoadFilterSuffixes(const QStringList &nameFilters)
-{
-    m_model.setProperty("autoLoadFilterSuffixes", nameFilters);
-}
-
-QList<QUrl> PlaylistManager::convertToUrlList(const QStringList &files)
-{
-    QList<QUrl> urlList;
-    for (const QString & str : std::as_const(files)) {
-        QUrl url = QUrl::fromLocalFile(str);
-        if (url.isValid()) {
-            urlList.append(url);
-        }
-    }
-
-    return urlList;
-}
+// SPDX-FileCopyrightText: 2024 Gary Wang <git@blumia.net>
+//
+// SPDX-License-Identifier: MIT
+
+#include "playlistmanager.h"
+
+#include <QCollator>
+#include <QDir>
+#include <QFileInfo>
+#include <QUrl>
+
+PlaylistModel::PlaylistModel(QObject *parent)
+    : QAbstractListModel(parent)
+{
+
+}
+
+PlaylistModel::~PlaylistModel()
+{
+
+}
+
+void PlaylistModel::setPlaylist(const QList<QUrl> &urls)
+{
+    beginResetModel();
+    m_playlist = urls;
+    endResetModel();
+}
+
+QModelIndex PlaylistModel::loadPlaylist(const QList<QUrl> & urls)
+{
+    if (urls.isEmpty()) return QModelIndex();
+    if (urls.count() == 1) {
+        return loadPlaylist(urls.constFirst());
+    } else {
+        setPlaylist(urls);
+        return index(0);
+    }
+}
+
+QModelIndex PlaylistModel::loadPlaylist(const QUrl &url)
+{
+    QFileInfo info(url.toLocalFile());
+    QDir dir(info.path());
+    QString && currentFileName = info.fileName();
+
+    if (dir.path() == m_currentDir) {
+        int idx = indexOf(url);
+        return idx == -1 ? appendToPlaylist(url) : index(idx);
+    }
+
+    QStringList entryList = dir.entryList(
+        m_autoLoadSuffixes,
+        QDir::Files | QDir::NoSymLinks, QDir::NoSort);
+
+    QCollator collator;
+    collator.setNumericMode(true);
+
+    std::sort(entryList.begin(), entryList.end(), collator);
+
+    QList<QUrl> playlist;
+
+    int idx = -1;
+    for (int i = 0; i < entryList.count(); i++) {
+        const QString & fileName = entryList.at(i);
+        const QString & oneEntry = dir.absoluteFilePath(fileName);
+        const QUrl & url = QUrl::fromLocalFile(oneEntry);
+        playlist.append(url);
+        if (fileName == currentFileName) {
+            idx = i;
+        }
+    }
+    if (idx == -1) {
+        idx = playlist.count();
+        playlist.append(url);
+    }
+    m_currentDir = dir.path();
+
+    setPlaylist(playlist);
+
+    return index(idx);
+}
+
+QModelIndex PlaylistModel::appendToPlaylist(const QUrl &url)
+{
+    const int lastIndex = rowCount();
+    beginInsertRows(QModelIndex(), lastIndex, lastIndex);
+    m_playlist.append(url);
+    endInsertRows();
+    return index(lastIndex);
+}
+
+bool PlaylistModel::removeAt(int index)
+{
+    if (index < 0 || index >= rowCount()) return false;
+    beginRemoveRows(QModelIndex(), index, index);
+    m_playlist.removeAt(index);
+    endRemoveRows();
+    return true;
+}
+
+int PlaylistModel::indexOf(const QUrl &url) const
+{
+    return m_playlist.indexOf(url);
+}
+
+QUrl PlaylistModel::urlByIndex(int index) const
+{
+    return m_playlist.value(index);
+}
+
+QStringList PlaylistModel::autoLoadFilterSuffixes() const
+{
+    return m_autoLoadSuffixes;
+}
+
+QHash<int, QByteArray> PlaylistModel::roleNames() const
+{
+    QHash<int, QByteArray> result = QAbstractListModel::roleNames();
+    result.insert(UrlRole, "url");
+    return result;
+}
+
+int PlaylistModel::rowCount(const QModelIndex &parent) const
+{
+    return m_playlist.count();
+}
+
+QVariant PlaylistModel::data(const QModelIndex &index, int role) const
+{
+    if (!index.isValid()) return QVariant();
+
+    switch (role) {
+    case Qt::DisplayRole:
+        return m_playlist.at(index.row()).fileName();
+    case UrlRole:
+        return m_playlist.at(index.row());
+    }
+
+    return QVariant();
+}
+
+PlaylistManager::PlaylistManager(QObject *parent)
+    : QObject(parent)
+{
+    connect(&m_model, &PlaylistModel::rowsRemoved, this,
+            [this](const QModelIndex &, int, int) {
+                if (m_model.rowCount() <= m_currentIndex) {
+                    setProperty("currentIndex", m_currentIndex - 1);
+                }
+            });
+
+    auto onRowCountChanged = [this](){
+        emit totalCountChanged(m_model.rowCount());
+    };
+
+    connect(&m_model, &PlaylistModel::rowsInserted, this, onRowCountChanged);
+    connect(&m_model, &PlaylistModel::rowsRemoved, this, onRowCountChanged);
+    connect(&m_model, &PlaylistModel::modelReset, this, onRowCountChanged);
+}
+
+PlaylistManager::~PlaylistManager()
+{
+
+}
+
+PlaylistModel *PlaylistManager::model()
+{
+    return &m_model;
+}
+
+void PlaylistManager::setPlaylist(const QList<QUrl> &urls)
+{
+    m_model.setPlaylist(urls);
+}
+
+QModelIndex PlaylistManager::loadPlaylist(const QList<QUrl> &urls)
+{
+    QModelIndex idx = m_model.loadPlaylist(urls);
+    setProperty("currentIndex", idx.row());
+    return idx;
+}
+
+QModelIndex PlaylistManager::loadPlaylist(const QUrl &url)
+{
+    QModelIndex idx = m_model.loadPlaylist(url);
+    setProperty("currentIndex", idx.row());
+    return idx;
+}
+
+int PlaylistManager::totalCount() const
+{
+    return m_model.rowCount();
+}
+
+QModelIndex PlaylistManager::previousIndex() const
+{
+    int count = totalCount();
+    if (count == 0) return QModelIndex();
+
+    return m_model.index(m_currentIndex - 1 < 0 ? count - 1 : m_currentIndex - 1);
+}
+
+QModelIndex PlaylistManager::nextIndex() const
+{
+    int count = totalCount();
+    if (count == 0) return QModelIndex();
+
+    return m_model.index(m_currentIndex + 1 == count ? 0 : m_currentIndex + 1);
+}
+
+QModelIndex PlaylistManager::curIndex() const
+{
+    return m_model.index(m_currentIndex);
+}
+
+void PlaylistManager::setCurrentIndex(const QModelIndex &index)
+{
+    if (index.isValid() && index.row() >= 0 && index.row() < totalCount()) {
+        setProperty("currentIndex", index.row());
+    }
+}
+
+QUrl PlaylistManager::urlByIndex(const QModelIndex &index)
+{
+    return m_model.urlByIndex(index.row());
+}
+
+QString PlaylistManager::localFileByIndex(const QModelIndex &index)
+{
+    return urlByIndex(index).toLocalFile();
+}
+
+bool PlaylistManager::removeAt(const QModelIndex &index)
+{
+    return m_model.removeAt(index.row());
+}
+
+void PlaylistManager::setAutoLoadFilterSuffixes(const QStringList &nameFilters)
+{
+    m_model.setProperty("autoLoadFilterSuffixes", nameFilters);
+}
+
+QList<QUrl> PlaylistManager::convertToUrlList(const QStringList &files)
+{
+    QList<QUrl> urlList;
+    for (const QString & str : std::as_const(files)) {
+        QUrl url = QUrl::fromLocalFile(str);
+        if (url.isValid()) {
+            urlList.append(url);
+        }
+    }
+
+    return urlList;
+}
--- a/playlistmanager.h
+++ b/playlistmanager.h
@ -1,88 +1,85 @@
-// SPDX-FileCopyrightText: 2025 Gary Wang <git@blumia.net>
-//
-// SPDX-License-Identifier: MIT
-
-#pragma once
-
-#include <QUrl>
-#include <QAbstractListModel>
-
-class PlaylistModel : public QAbstractListModel
-{
-    Q_OBJECT
-public:
-    enum PlaylistRole {
-        UrlRole = Qt::UserRole
-    };
-    Q_ENUM(PlaylistRole)
-    Q_PROPERTY(QStringList autoLoadFilterSuffixes MEMBER m_autoLoadSuffixes NOTIFY autoLoadFilterSuffixesChanged)
-
-    explicit PlaylistModel(QObject *parent = nullptr);
-    ~PlaylistModel() override;
-
-    void setPlaylist(const QList<QUrl> & urls);
-    QModelIndex loadPlaylist(const QList<QUrl> & urls);
-    QModelIndex loadPlaylist(const QUrl & url);
-    QModelIndex appendToPlaylist(const QUrl & url);
-    bool removeAt(int index);
-    int indexOf(const QUrl & url) const;
-    QUrl urlByIndex(int index) const;
-    QStringList autoLoadFilterSuffixes() const;
-
-    QHash<int, QByteArray> roleNames() const override;
-    int rowCount(const QModelIndex &parent = QModelIndex()) const override;
-    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
-
-signals:
-    void autoLoadFilterSuffixesChanged(QStringList suffixes);
-
-private:
-    // model data
-    QList<QUrl> m_playlist;
-    // properties
-    QStringList m_autoLoadSuffixes = {};
-    // internal
-    QString m_currentDir;
-};
-
-class PlaylistManager : public QObject
-{
-    Q_OBJECT
-public:
-    Q_PROPERTY(int currentIndex MEMBER m_currentIndex NOTIFY currentIndexChanged)
-    Q_PROPERTY(QStringList autoLoadFilterSuffixes WRITE setAutoLoadFilterSuffixes)
-    Q_PROPERTY(PlaylistModel * model READ model CONSTANT)
-
-    explicit PlaylistManager(QObject *parent = nullptr);
-    ~PlaylistManager();
-
-    PlaylistModel * model();
-
-    void setPlaylist(const QList<QUrl> & url);
-    Q_INVOKABLE QModelIndex loadPlaylist(const QList<QUrl> & urls);
-    Q_INVOKABLE QModelIndex loadPlaylist(const QUrl & url);
-    Q_INVOKABLE QModelIndex loadM3U8Playlist(const QUrl & url);
-
-    int totalCount() const;
-    QModelIndex previousIndex() const;
-    QModelIndex nextIndex() const;
-    QModelIndex curIndex() const;
-    bool isFirstIndex() const;
-    bool isLastIndex() const;
-    void setCurrentIndex(const QModelIndex & index);
-    QUrl urlByIndex(const QModelIndex & index);
-    QString localFileByIndex(const QModelIndex & index);
-    bool removeAt(const QModelIndex & index);
-
-    void setAutoLoadFilterSuffixes(const QStringList &nameFilters);
-
-    static QList<QUrl> convertToUrlList(const QStringList & files);
-
-signals:
-    void currentIndexChanged(int index);
-    void totalCountChanged(int count);
-
-private:
-    int m_currentIndex = -1;
-    PlaylistModel m_model;
-};
+// SPDX-FileCopyrightText: 2024 Gary Wang <git@blumia.net>
+//
+// SPDX-License-Identifier: MIT
+
+#pragma once
+
+#include <QUrl>
+#include <QAbstractListModel>
+
+class PlaylistModel : public QAbstractListModel
+{
+    Q_OBJECT
+public:
+    enum PlaylistRole {
+        UrlRole = Qt::UserRole
+    };
+    Q_ENUM(PlaylistRole)
+    Q_PROPERTY(QStringList autoLoadFilterSuffixes MEMBER m_autoLoadSuffixes NOTIFY autoLoadFilterSuffixesChanged)
+
+    explicit PlaylistModel(QObject *parent = nullptr);
+    ~PlaylistModel();
+
+    void setPlaylist(const QList<QUrl> & urls);
+    QModelIndex loadPlaylist(const QList<QUrl> & urls);
+    QModelIndex loadPlaylist(const QUrl & url);
+    QModelIndex appendToPlaylist(const QUrl & url);
+    bool removeAt(int index);
+    int indexOf(const QUrl & url) const;
+    QUrl urlByIndex(int index) const;
+    QStringList autoLoadFilterSuffixes() const;
+
+    QHash<int, QByteArray> roleNames() const override;
+    int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
+
+signals:
+    void autoLoadFilterSuffixesChanged(QStringList suffixes);
+
+private:
+    // model data
+    QList<QUrl> m_playlist;
+    // properties
+    QStringList m_autoLoadSuffixes = {};
+    // internal
+    QString m_currentDir;
+};
+
+class PlaylistManager : public QObject
+{
+    Q_OBJECT
+public:
+    Q_PROPERTY(int currentIndex MEMBER m_currentIndex NOTIFY currentIndexChanged)
+    Q_PROPERTY(QStringList autoLoadFilterSuffixes WRITE setAutoLoadFilterSuffixes)
+    Q_PROPERTY(PlaylistModel * model READ model CONSTANT)
+
+    explicit PlaylistManager(QObject *parent = nullptr);
+    ~PlaylistManager();
+
+    PlaylistModel * model();
+
+    void setPlaylist(const QList<QUrl> & url);
+    Q_INVOKABLE QModelIndex loadPlaylist(const QList<QUrl> & urls);
+    Q_INVOKABLE QModelIndex loadPlaylist(const QUrl & url);
+
+    int totalCount() const;
+    QModelIndex previousIndex() const;
+    QModelIndex nextIndex() const;
+    QModelIndex curIndex() const;
+    void setCurrentIndex(const QModelIndex & index);
+    QUrl urlByIndex(const QModelIndex & index);
+    QString localFileByIndex(const QModelIndex & index);
+    bool removeAt(const QModelIndex & index);
+
+    void setAutoLoadFilterSuffixes(const QStringList &nameFilters);
+
+    static QList<QUrl> convertToUrlList(const QStringList & files);
+
+signals:
+    void currentIndexChanged(int index);
+    void totalCountChanged(int count);
+
+private:
+    int m_currentIndex = -1;
+    PlaylistModel m_model;
+};
--- a/seekableslider.h
+++ b/seekableslider.h
@ -1,24 +1,24 @@
-// SPDX-FileCopyrightText: 2025 Gary Wang <git@blumia.net>
-//
-// SPDX-License-Identifier: MIT
-
-#pragma once
-
-#include <QSlider>
-#include <QMouseEvent>
-
-class SeekableSlider : public QSlider
-{
-    Q_OBJECT
-public:
-    explicit SeekableSlider(QWidget *parent = nullptr);
-    ~SeekableSlider() override = default;
-
-signals:
-
-public slots:
-
-protected:
-    void mouseReleaseEvent(QMouseEvent *event) override;
-};
-
+// SPDX-FileCopyrightText: 2024 Gary Wang <git@blumia.net>
+//
+// SPDX-License-Identifier: MIT
+
+#pragma once
+
+#include <QSlider>
+#include <QMouseEvent>
+
+class SeekableSlider : public QSlider
+{
+    Q_OBJECT
+public:
+    explicit SeekableSlider(QWidget *parent = nullptr);
+    ~SeekableSlider() = default;
+
+signals:
+
+public slots:
+
+protected:
+    void mouseReleaseEvent(QMouseEvent *event) override;
+};
+
--- a/taskbarmanager.cpp
+++ b/taskbarmanager.cpp
@ -1,383 +0,0 @@
-// SPDX-FileCopyrightText: 2024 (c) Jack Hill <jackhill3103@gmail.com>
-// SPDX-FileCopyrightText: 2025 (c) Gary Wang <opensource@blumia.net>
-//
-// SPDX-License-Identifier: LGPL-3.0-or-later
-//
-// This file is modified based on Elisa's taskmanager.cpp implementation,
-// with its Qt Quick usage removed.
-
-#include "taskbarmanager.h"
-
-#include <QAbstractEventDispatcher>
-#include <QAbstractNativeEventFilter>
-#include <QDebug>
-
-#include <Shobjidl.h>
-#include <WinDef.h>
-#include <Windows.h>
-
-constexpr int numOfButtons = 3;
-
-#if QT_VERSION < QT_VERSION_CHECK(6, 7, 0)
-using namespace Qt::Literals::StringLiterals;
-
-static HICON hiconFromTheme(const QString &iconName)
-#else
-static HICON hiconFromTheme(const QIcon::ThemeIcon iconName)
-#endif
-{
-    const auto width = GetSystemMetrics(SM_CXSMICON);
-    const auto height = GetSystemMetrics(SM_CYSMICON);
-    return QIcon::fromTheme(iconName).pixmap(width, height).toImage().toHICON();
-}
-
-class TaskBarManagerPrivate
-{
-public:
-
-    ITaskbarList3 *taskBar = nullptr;
-    HWND hwnd = nullptr;
-
-    /**
-     * Whether the toolbar has been added to the taskbar
-     */
-    bool addedThumbButtons = false;
-
-    QMediaPlayer::PlaybackState playbackState = QMediaPlayer::StoppedState;
-
-    bool showProgress = false;
-    qlonglong progressMaximum = 0;
-    qlonglong progressValue = 0;
-
-#if QT_VERSION < QT_VERSION_CHECK(6, 7, 0)
-    HICON skipBackwardIcon = hiconFromTheme(u"media-skip-backward"_s);
-    HICON skipForwardIcon = hiconFromTheme(u"media-skip-forward"_s);
-    HICON playIcon = hiconFromTheme(u"media-playback-start"_s);
-    HICON pauseIcon = hiconFromTheme(u"media-playback-pause"_s);
-#else
-    HICON skipBackwardIcon = hiconFromTheme(QIcon::ThemeIcon::MediaSkipBackward);
-    HICON skipForwardIcon = hiconFromTheme(QIcon::ThemeIcon::MediaSkipForward);
-    HICON playIcon = hiconFromTheme(QIcon::ThemeIcon::MediaPlaybackStart);
-    HICON pauseIcon = hiconFromTheme(QIcon::ThemeIcon::MediaPlaybackPause);
-#endif
-
-    /**
-     * Contains the current state of each button
-     */
-    struct ButtonData {
-        HICON icon = nullptr;
-        bool enabled = false;
-    };
-    std::array<ButtonData, numOfButtons> buttonData = {{
-        {skipBackwardIcon, false},
-        {playIcon, false},
-        {skipForwardIcon, false}
-    }};
-
-    /**
-     * For convenience when reading code
-     */
-    enum ButtonID {
-        SkipBackward = 0,
-        TogglePlayback = 1,
-        SkipForward = 2,
-    };
-
-    TaskBarManagerPrivate()
-    {
-        HRESULT result = CoCreateInstance(CLSID_TaskbarList,
-                                          nullptr,
-                                          CLSCTX_INPROC_SERVER,
-                                          IID_PPV_ARGS(&taskBar));
-        if (FAILED(result)) {
-            taskBar = nullptr;
-            qWarning() << "Failed to create Windows taskbar instance";
-            return;
-        }
-    }
-
-    ~TaskBarManagerPrivate()
-    {
-        if (taskBar) {
-            taskBar->Release();
-        }
-        DestroyIcon(skipForwardIcon);
-        DestroyIcon(skipBackwardIcon);
-        DestroyIcon(pauseIcon);
-        DestroyIcon(playIcon);
-    }
-
-    /**
-     * Update the native window handle for the taskbar instance
-     */
-    void setHWND(HWND newHwnd)
-    {
-        if (hwnd == newHwnd) {
-            return;
-        }
-
-        hwnd = newHwnd;
-        addedThumbButtons = false;
-        if (hwnd) {
-            updateProgressFlags();
-            updateProgressValue();
-            setupTaskBarManagerButtons();
-        }
-    }
-
-    /**
-     * Update the taskbar progress flags
-     */
-    void updateProgressFlags()
-    {
-        if (taskBar && hwnd) {
-            taskBar->SetProgressState(hwnd, progressFlags());
-        }
-    }
-
-    /**
-     * Update the taskbar progress value, only if the taskbar is showing progress
-     */
-    void updateProgressValue()
-    {
-        if (taskBar && hwnd && showProgress && playbackState != QMediaPlayer::StoppedState) {
-            taskBar->SetProgressValue(hwnd, progressValue, progressMaximum);
-        }
-    }
-
-    /**
-     * Update the state of a single toolbutton
-     */
-    void updateButton(const ButtonID buttonId)
-    {
-        if (!taskBar || !hwnd || !addedThumbButtons) {
-            return;
-        }
-        THUMBBUTTON thumbButtons[1];
-        initThumbButton(thumbButtons, buttonId);
-        taskBar->ThumbBarUpdateButtons(hwnd, 1, thumbButtons);
-    }
-
-private:
-    /**
-     * Convert playbackState into windows taskbar flags
-     */
-    TBPFLAG progressFlags() const
-    {
-        if (!showProgress) {
-            return TBPF_NOPROGRESS;
-        }
-
-        switch (playbackState) {
-        case QMediaPlayer::StoppedState:
-            return TBPF_NOPROGRESS;
-        case QMediaPlayer::PlayingState:
-            return TBPF_NORMAL;
-        case QMediaPlayer::PausedState:
-            return TBPF_PAUSED;
-        default:
-            return TBPF_NOPROGRESS;
-        }
-    }
-
-    /**
-     * Initialize a single toolbutton
-     */
-    void initThumbButton(THUMBBUTTON *button, const ButtonID id)
-    {
-        button->dwMask = THB_ICON | THB_FLAGS;
-        button->iId = id;
-        button->hIcon = buttonData.at(id).icon;
-        button->dwFlags = buttonData.at(id).enabled ? THBF_ENABLED : THBF_DISABLED;
-    }
-
-    /**
-     * Initialize the toolbar
-     */
-    void setupTaskBarManagerButtons()
-    {
-        if (!taskBar || !hwnd || addedThumbButtons) {
-            return;
-        }
-
-        THUMBBUTTON thumbButtons[numOfButtons];
-        THUMBBUTTON *currButton = thumbButtons;
-        for (int i = 0; i < numOfButtons; ++i) {
-            initThumbButton(currButton++, static_cast<ButtonID>(i));
-        }
-
-        // win32 api reference says we should pass &thumbButtons but this doesn't compile
-        HRESULT result = taskBar->ThumbBarAddButtons(hwnd, numOfButtons, thumbButtons);
-        if (FAILED(result)) {
-            qWarning() << "Failed to create Windows taskbar buttons";
-        } else {
-            addedThumbButtons = true;
-        }
-    }
-};
-
-TaskBarManager::TaskBarManager(QObject *parent)
-    : QObject(parent)
-    , d(std::make_unique<TaskBarManagerPrivate>())
-{
-    QAbstractEventDispatcher::instance()->installNativeEventFilter(this);
-}
-
-TaskBarManager::~TaskBarManager() = default;
-
-bool TaskBarManager::nativeEventFilter(const QByteArray &eventType, void *message, qintptr *)
-{
-    if (eventType == "windows_generic_MSG") {
-        MSG *msg = static_cast<MSG *>(message);
-        if (msg->hwnd != d->hwnd || msg->message != WM_COMMAND || HIWORD(msg->wParam) != THBN_CLICKED) {
-            return false;
-        }
-
-        switch (LOWORD(msg->wParam)) {
-        case TaskBarManagerPrivate::SkipBackward:
-            Q_EMIT skipBackward();
-            return true;
-        case TaskBarManagerPrivate::TogglePlayback:
-            Q_EMIT togglePlayback();
-            return true;
-        case TaskBarManagerPrivate::SkipForward:
-            Q_EMIT skipForward();
-            return true;
-        }
-    }
-    return false;
-}
-
-QMediaPlayer::PlaybackState TaskBarManager::playbackState() const
-{
-    return d->playbackState;
-}
-
-bool TaskBarManager::showProgress() const
-{
-    return d->showProgress;
-}
-
-qulonglong TaskBarManager::progressMaximum() const
-{
-    return d->progressMaximum;
-}
-
-qulonglong TaskBarManager::progressValue() const
-{
-    return d->progressValue;
-}
-
-bool TaskBarManager::canSkipBackward() const
-{
-    return d->buttonData.at(TaskBarManagerPrivate::SkipBackward).enabled;
-}
-
-bool TaskBarManager::canSkipForward() const
-{
-    return d->buttonData.at(TaskBarManagerPrivate::SkipForward).enabled;
-}
-
-bool TaskBarManager::canTogglePlayback() const
-{
-    return d->buttonData.at(TaskBarManagerPrivate::TogglePlayback).enabled;
-}
-
-void TaskBarManager::setWinId(WId winId)
-{
-    d->setHWND(reinterpret_cast<HWND>(winId));
-}
-
-void TaskBarManager::setPlaybackState(const QMediaPlayer::PlaybackState newPlaybackState)
-{
-    if (d->playbackState == newPlaybackState) {
-        return;
-    }
-
-    d->playbackState = newPlaybackState;
-    Q_EMIT playbackStateChanged();
-
-    d->buttonData.at(TaskBarManagerPrivate::TogglePlayback).icon =
-        d->playbackState == QMediaPlayer::PlayingState ? d->pauseIcon : d->playIcon;
-    d->updateButton(TaskBarManagerPrivate::TogglePlayback);
-    d->updateProgressFlags();
-}
-
-void TaskBarManager::setShowProgress(const bool showProgress)
-{
-    if (d->showProgress == showProgress) {
-        return;
-    }
-
-    d->showProgress = showProgress;
-    Q_EMIT showProgressChanged();
-
-    d->updateProgressFlags();
-}
-
-void TaskBarManager::setProgressMaximum(const qlonglong newMaximum)
-{
-    if (d->progressMaximum == newMaximum) {
-        return;
-    }
-
-    d->progressMaximum = newMaximum;
-    Q_EMIT progressMaximumChanged();
-
-    if (d->progressValue > d->progressMaximum) {
-        d->progressValue = d->progressMaximum;
-        Q_EMIT progressValueChanged();
-    }
-
-    d->updateProgressValue();
-}
-
-void TaskBarManager::setProgressValue(const qlonglong newValue)
-{
-    if (d->progressValue == newValue) {
-        return;
-    }
-
-    d->progressValue = newValue < d->progressMaximum ? newValue : d->progressMaximum;
-    Q_EMIT progressValueChanged();
-
-    d->updateProgressValue();
-}
-
-void TaskBarManager::setCanSkipBackward(const bool canSkip)
-{
-    if (d->buttonData[TaskBarManagerPrivate::SkipBackward].enabled == canSkip) {
-        return;
-    }
-
-    d->buttonData[TaskBarManagerPrivate::SkipBackward].enabled = canSkip;
-    Q_EMIT canSkipBackwardChanged();
-
-    d->updateButton(TaskBarManagerPrivate::SkipBackward);
-}
-
-void TaskBarManager::setCanSkipForward(const bool canSkip)
-{
-    if (d->buttonData[TaskBarManagerPrivate::SkipForward].enabled == canSkip) {
-        return;
-    }
-
-    d->buttonData[TaskBarManagerPrivate::SkipForward].enabled = canSkip;
-    Q_EMIT canSkipForwardChanged();
-
-    d->updateButton(TaskBarManagerPrivate::SkipForward);
-}
-
-void TaskBarManager::setCanTogglePlayback(const bool canToggle)
-{
-    if (d->buttonData[TaskBarManagerPrivate::TogglePlayback].enabled == canToggle) {
-        return;
-    }
-
-    d->buttonData[TaskBarManagerPrivate::TogglePlayback].enabled = canToggle;
-    Q_EMIT canTogglePlaybackChanged();
-
-    d->updateButton(TaskBarManagerPrivate::TogglePlayback);
-}
-
-#include "moc_taskbarmanager.cpp"
--- a/taskbarmanager.h
+++ b/taskbarmanager.h
@ -1,151 +0,0 @@
-// SPDX-FileCopyrightText: 2024 (c) Jack Hill <jackhill3103@gmail.com>
-// SPDX-FileCopyrightText: 2025 (c) Gary Wang <opensource@blumia.net>
-//
-// SPDX-License-Identifier: LGPL-3.0-or-later
-//
-// This file is modified based on Elisa's taskmanager.cpp implementation,
-// with its Qt Quick usage removed.
-
-#ifndef TASKBAR_H
-#define TASKBAR_H
-
-#include <QAbstractNativeEventFilter>
-#include <QMediaPlayer>
-#include <QWindow>
-
-#include <memory>
-
-class TaskBarManagerPrivate;
-
-/**
- * Windows taskbar
- */
-class TaskBarManager : public QObject, public QAbstractNativeEventFilter
-{
-    Q_OBJECT
-
-    /**
-     * Whether the media is playing, paused, or stopped
-     */
-    Q_PROPERTY(QMediaPlayer::PlaybackState playbackState
-               READ playbackState
-               WRITE setPlaybackState
-               NOTIFY playbackStateChanged)
-
-    /**
-     * Whether to show track progress on the taskbar
-     */
-    Q_PROPERTY(bool showProgress
-               READ showProgress
-               WRITE setShowProgress
-               NOTIFY showProgressChanged)
-
-    /**
-     * Maximum possible progress
-     */
-    Q_PROPERTY(qulonglong progressMaximum
-               READ progressMaximum
-               WRITE setProgressMaximum
-               NOTIFY progressMaximumChanged)
-
-    /**
-     * Current progress; this is always clamped to be in the range [0, progressMaximum]
-     */
-    Q_PROPERTY(qulonglong progressValue
-               READ progressValue
-               WRITE setProgressValue
-               NOTIFY progressValueChanged)
-
-    /**
-     * Whether the "Skip Backward" button is enabled
-     */
-    Q_PROPERTY(bool canSkipBackward
-               READ canSkipBackward
-               WRITE setCanSkipBackward
-               NOTIFY canSkipBackwardChanged)
-
-    /**
-     * Whether the "Skip Forward" button is enabled
-     */
-    Q_PROPERTY(bool canSkipForward
-               READ canSkipForward
-               WRITE setCanSkipForward
-               NOTIFY canSkipForwardChanged)
-
-    /**
-     * Whether the "Toggle Playback" button is enabled
-     */
-    Q_PROPERTY(bool canTogglePlayback
-               READ canTogglePlayback
-               WRITE setCanTogglePlayback
-               NOTIFY canTogglePlaybackChanged)
-
-public:
-
-    explicit TaskBarManager(QObject *parent = nullptr);
-
-    ~TaskBarManager() override;
-
-    bool nativeEventFilter(const QByteArray &eventType, void *message, qintptr *result) override;
-
-    [[nodiscard]] QMediaPlayer::PlaybackState playbackState() const;
-
-    [[nodiscard]] bool showProgress() const;
-
-    [[nodiscard]] qulonglong progressMaximum() const;
-
-    [[nodiscard]] qulonglong progressValue() const;
-
-    [[nodiscard]] bool canSkipBackward() const;
-
-    [[nodiscard]] bool canSkipForward() const;
-
-    [[nodiscard]] bool canTogglePlayback() const;
-
-Q_SIGNALS:
-
-    void playbackStateChanged();
-
-    void showProgressChanged();
-
-    void progressMaximumChanged();
-
-    void progressValueChanged();
-
-    void canSkipBackwardChanged();
-
-    void canSkipForwardChanged();
-
-    void canTogglePlaybackChanged();
-
-    void skipBackward();
-
-    void skipForward();
-
-    void togglePlayback();
-
-public Q_SLOTS:
-
-    void setWinId(WId win);
-
-    void setPlaybackState(QMediaPlayer::PlaybackState newPlaybackState);
-
-    void setShowProgress(bool showProgress);
-
-    void setProgressMaximum(qlonglong newMaximum);
-
-    void setProgressValue(qlonglong newValue);
-
-    void setCanSkipBackward(bool canSkip);
-
-    void setCanSkipForward(bool canSkip);
-
-    void setCanTogglePlayback(bool canToggle);
-
-private:
-
-    std::unique_ptr<TaskBarManagerPrivate> d;
-
-};
-
-#endif // TASKBAR_H
--- a/taskbarmanager_dummy.cpp
+++ b/taskbarmanager_dummy.cpp
@ -1,97 +0,0 @@
-// SPDX-FileCopyrightText: 2025 Gary Wang <opensource@blumia.net>
-//
-// SPDX-License-Identifier: MIT
-
-#include "taskbarmanager.h"
-
-#include <QDebug>
-
-class TaskBarManagerPrivate {};
-
-TaskBarManager::TaskBarManager(QObject *parent)
-    : QObject(parent)
-{
-}
-
-TaskBarManager::~TaskBarManager() = default;
-
-bool TaskBarManager::nativeEventFilter(const QByteArray &eventType, void *message, qintptr *)
-{
-    return false;
-}
-
-QMediaPlayer::PlaybackState TaskBarManager::playbackState() const
-{
-    return QMediaPlayer::StoppedState;
-}
-
-bool TaskBarManager::showProgress() const
-{
-    return false;
-}
-
-qulonglong TaskBarManager::progressMaximum() const
-{
-    return 100;
-}
-
-qulonglong TaskBarManager::progressValue() const
-{
-    return 50;
-}
-
-bool TaskBarManager::canSkipBackward() const
-{
-    return false;
-}
-
-bool TaskBarManager::canSkipForward() const
-{
-    return false;
-}
-
-bool TaskBarManager::canTogglePlayback() const
-{
-    return false;
-}
-
-void TaskBarManager::setWinId(WId winId)
-{
-}
-
-void TaskBarManager::setPlaybackState(const QMediaPlayer::PlaybackState newPlaybackState)
-{
-    Q_UNUSED(newPlaybackState);
-}
-
-void TaskBarManager::setShowProgress(const bool showProgress)
-{
-    Q_UNUSED(showProgress);
-}
-
-void TaskBarManager::setProgressMaximum(const qlonglong newMaximum)
-{
-    Q_UNUSED(newMaximum);
-}
-
-void TaskBarManager::setProgressValue(const qlonglong newValue)
-{
-    Q_UNUSED(newValue);
-}
-
-void TaskBarManager::setCanSkipBackward(const bool canSkip)
-{
-    Q_UNUSED(canSkip);
-}
-
-void TaskBarManager::setCanSkipForward(const bool canSkip)
-{
-    Q_UNUSED(canSkip);
-}
-
-void TaskBarManager::setCanTogglePlayback(const bool canToggle)
-{
-    Q_UNUSED(canToggle);
-}
-
-#include "moc_taskbarmanager.cpp"