Audio support W.-I.-P.; compiles; not tested yet

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "libs/libsndfile"]
+	path = libs/libsndfile
+	url = https://github.com/libsndfile/libsndfile

inkbox.pro

@@ -25,8 +25,12 @@ DEFINES += GIT_COMMIT=\\\"$$GIT_COMMIT\\\"
 
 SOURCES += \
     src/apps/todo.cpp \
+    src/audio/audiothread.cpp \
     src/splash/alert.cpp \
     src/apps/apps.cpp \
+    src/widgets/dialogs/audio/audiodialog.cpp \
+    src/widgets/dialogs/audio/audiofile.cpp \
+    src/widgets/dialogs/audio/audiofilequeue.cpp \
     src/widgets/dialogs/library/bookinfodialog.cpp \
     src/widgets/dialogs/library/bookoptionsdialog.cpp \
     src/widgets/dialogs/brightnessdialog.cpp \
@@ -69,9 +73,13 @@ SOURCES += \
     src/settings/powerdaemonsettings.cpp
 
 HEADERS += \
+    src/audio/audiothread.h \
     src/apps/todo.h \
     src/splash/alert.h \
     src/apps/apps.h \
+    src/widgets/dialogs/audio/audiodialog.h \
+    src/widgets/dialogs/audio/audiofile.h \
+    src/widgets/dialogs/audio/audiofilequeue.h \
     src/widgets/dialogs/library/bookinfodialog.h \
     src/widgets/dialogs/library/bookoptionsdialog.h \
     src/widgets/dialogs/brightnessdialog.h \
@@ -117,6 +125,9 @@ FORMS += \
     src/apps/todo.ui \
     src/splash/alert.ui \
     src/apps/apps.ui \
+    src/widgets/dialogs/audio/audiodialog.ui \
+    src/widgets/dialogs/audio/audiofile.ui \
+    src/widgets/dialogs/audio/audiofilequeue.ui \
     src/widgets/dialogs/library/bookinfodialog.ui \
     src/widgets/dialogs/library/bookoptionsdialog.ui \
     src/widgets/dialogs/brightnessdialog.ui \
@@ -163,3 +174,6 @@ RESOURCES += \
     src/eink.qrc
 
 INCLUDEPATH += $$system(find ./ -type d -print -path ./.git -prune | grep -v "./.git")
+INCLUDEPATH += $$PWD/libs/libsndfile/include/
+DEPENDPATH += $$PWD/libs/libsndfile/include/
+LIBS += -L$$PWD/libs/prebuilt -lsndfile

libs/libsndfile

@@ -0,0 +1 @@
+Subproject commit 59067eb60518fa63c8629372538075a54828328b

libs/prebuilt/libsndfile.so

@@ -0,0 +1 @@
+libsndfile.so.1.0.35

libs/prebuilt/libsndfile.so.1

@@ -0,0 +1 @@
+libsndfile.so.1.0.35

src/audio/audiothread.cpp

@@ -0,0 +1,137 @@
+#include "audiothread.h"
+#include "functions.h"
+
+#include <QTimer>
+// Socket things
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <unistd.h>
+#include <string.h>
+
+#include <QTimer>
+
+audiothread::audiothread() {}
+
+void audiothread::start() {
+    log("Audio thread monitor available", className);
+
+    // QTimer doesn't work in such loops
+    int count = 0;
+    int delayMs = 100;
+    int secondsToCount = 1000 / delayMs;
+    int previousVolume = -1;
+    while(true) {
+        global::audio::audioMutex.lock();
+        if(count == secondsToCount) {
+            count = 0;
+            if(monitorProgress == true) {
+                audioProgress();
+            }
+        }
+        foreach(global::audio::Action action, global::audio::currentAction) {
+            // Order is important
+            if(action == global::audio::Action::Stop) {
+                // No need to call this before 'Play'
+                log("Stop action received", className);
+                sendInfo("pause:"); // Yea, only that
+                global::audio::paused = true;
+                global::audio::isSomethingCurrentlyPlaying = false;
+                global::audio::progressSeconds = -5;
+                monitorProgress = false;
+            }
+            if(action == global::audio::Action::Play) {
+                log("'Play' action received", className);
+                QString message = "play:\"";
+                QString betterPath = global::audio::queue[global::audio::itemCurrentlyPlaying].path;
+                betterPath.remove(0, 21); // Remove /mnt/onboard/onboard/
+                log("The name of the song is: '" + global::audio::queue[global::audio::itemCurrentlyPlaying].name + "'", className);
+                log("The path to be sent is: '" + betterPath + "'", className);
+
+                message.append(betterPath);
+                message.append('"');
+                sendInfo(message);
+                global::audio::paused = false;
+                global::audio::isSomethingCurrentlyPlaying = true;
+                global::audio::progressSeconds = -5;
+                monitorProgress = true;
+            }
+            if(action == global::audio::Action::Pause) {
+                log("'Pause' action received", className);
+                QString message = "pause:";
+                sendInfo(message);
+                global::audio::paused = true;
+                monitorProgress = false;
+            }
+            if(action == global::audio::Action::Continue) {
+                log("'Continue' action received", className);
+                QString message = "continue:";
+                sendInfo(message);
+                global::audio::paused = false;
+                monitorProgress = true;
+            }
+        }
+        global::audio::currentAction.clear();
+        if(global::audio::volumeLevel != previousVolume) {
+            previousVolume = global::audio::volumeLevel;
+            log("'Set volume' action detected", className);
+            QString message = "set_volume:" + QString::number(global::audio::volumeLevel);
+            sendInfo(message);
+        }
+        global::audio::audioMutex.unlock();
+        count = count + 1;
+        QThread::msleep(delayMs);
+    }
+}
+
+// I have no explanation as to why this needs to connect/disconnect every time.
+// while (recv(client_sockfd, buffer_tmp, 1, 0) > 0) {
+// ^ This line makes InkBox freeze
+void audiothread::sendInfo(QString message) {
+    log("Sending message: *" + message + "*", className);
+    // Send
+    sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
+    if (sockfd < 0) {
+        log("Error creating socket", className);
+    }
+
+    // Connect to the socket
+    addr.sun_family = AF_UNIX;
+    strcpy(addr.sun_path, "/dev/iaudio.socket");
+    res = ::connect(sockfd, (struct sockaddr *)&addr, sizeof(addr));
+    if (res < 0) {
+        log("Error connecting to socket", className);
+    }
+
+    log("Sending message: " + message, className);
+    res = send(sockfd, message.toStdString().c_str(), strlen(message.toStdString().c_str()), 0);
+    if (res < 0) {
+        log("Error sending message to socket", className);
+    }
+
+    log("Message sent, exiting", className);
+    close(sockfd);
+}
+
+// Mutex managed outside of the function
+void audiothread::audioProgress() {
+    global::audio::progressSeconds = global::audio::progressSeconds + 1;
+    // log("Progress, +1 sec: " + QString::number(global::audio::progressSeconds), className);
+    if(global::audio::progressSeconds >= global::audio::queue[global::audio::itemCurrentlyPlaying].lengths) {
+        if(global::audio::itemCurrentlyPlaying >= global::audio::queue.length()  - 1) {
+            // It's the last item
+            log("Last item: stopping playback", className);
+            global::audio::isSomethingCurrentlyPlaying = false;
+            global::audio::paused = true;
+            monitorProgress = false;
+            global::audio::progressSeconds = -5;
+            global::audio::currentAction.append(global::audio::Action::Stop);
+        }
+        else {
+            // It's not the last item, continuing
+            log("Audio file changed", className);
+            global::audio::itemCurrentlyPlaying = global::audio::itemCurrentlyPlaying + 1;
+            global::audio::currentAction.append(global::audio::Action::Play);
+            global::audio::songChanged = true;
+        }
+    }
+}

src/audio/audiothread.h

@@ -0,0 +1,27 @@
+#ifndef AUDIOTHREAD_H
+#define AUDIOTHREAD_H
+
+#include <QObject>
+#include <sys/un.h>
+#include <QTimer>
+
+class audiothread : public QObject
+{
+    Q_OBJECT
+
+public:
+    QString className = this->metaObject()->className();
+    audiothread();
+    void sendInfo(QString message);
+    int sockfd;
+    struct sockaddr_un addr;
+    int res;
+    bool monitorProgress = false;
+public slots:
+    void start();
+    void audioProgress();
+
+private:
+};
+
+#endif // AUDIOTHREAD_H

src/eink.qrc

@@ -111,5 +111,13 @@
         <file>resources/checkbox-indeterminate.png</file>
         <file>resources/egg/0.jpg</file>
         <file>resources/egg/1.jpg</file>
+	<file>resources/music-note.png</file>
+        <file>resources/music-library.png</file>
+        <file>resources/next.png</file>
+        <file>resources/music-queue.png</file>
+        <file>resources/play.png</file>
+        <file>resources/previous.png</file>
+        <file>resources/pause.png</file>
+        <file>resources/clean.png</file>
     </qresource>
 </RCC>

src/functions.h

@@ -21,6 +21,7 @@
 #include <QJsonArray>
 #include <QCryptographicHash>
 #include <QNetworkInterface>
+#include <QMutex>
 
 #include <stdio.h>
 #include <fcntl.h>
@@ -87,6 +88,7 @@ namespace global {
     namespace text {
         inline bool textBrowserDialog;
         inline QString textBrowserContents;
+        inline QString textBrowserTitle = ""; // At default: empty; "Information" will be displayed
     }
     namespace keyboard {
         inline bool keyboardDialog;
@@ -196,6 +198,37 @@ namespace global {
             int signal;
         };
     }
+    namespace audio {
+            inline bool enabled = false;
+            struct musicFile {
+                QString path;
+                QString name; // Cut path for easier use in names
+                int lengths; // length Seconds
+                QString length; // In minutes:seconds
+                int id;
+            };
+            // 'None' is when 'currentAction' is empty
+            enum class Action { // Function will be called with this enum
+                Play,
+                Next,
+                Previous,
+                Pause,
+                Continue,
+                Stop, // Sets 'paused' to false, 'isSomethingCurrentlyPlaying' to false, and 'itemCurrentlyPlaying' to -1; also stops playing
+                SetVolume,
+            };
+            inline QVector<Action> currentAction;
+            inline QVector<musicFile> queue;
+            inline QVector<musicFile> fileList;
+            inline int itemCurrentlyPlaying = -1; // Also indicates in the queue menu which a grey color which is playing
+            inline QMutex audioMutex; // These variables will be shared between threads, so here, it's to protect it
+            inline int progressSeconds = -5; // -5 at default to avoid cutting song too early... yea
+            inline bool paused = false;
+            inline bool isSomethingCurrentlyPlaying = false; // Pause and continue
+            inline bool firstScan = true;
+            inline int volumeLevel = 40; // Default save value
+            inline bool songChanged = false;
+        }
     inline QString systemInfoText;
     inline bool forbidOpenSearchDialog;
     inline bool isN705 = false;
@@ -261,9 +294,8 @@ namespace {
             config.open(QIODevice::ReadOnly);
             QTextStream in (&config);
             const QString content = in.readAll();
-            std::string contentstr = content.toStdString();
             config.close();
-            if(contentstr.find("true") != std::string::npos) {
+            if(content.contains("true")) {
                 return true;
             }
             else {
@@ -271,6 +303,7 @@ namespace {
             }
         }
         else {
+            QString function = __func__; log(function + ": Warning: File '" + file + "' doesn't exist, returning false", "functions");
             return false;
         }
         return 0;
@@ -1143,6 +1176,19 @@ namespace {
         // This can cause problems if someone names their directory with HTML tags, so stop here. Anki, which is a big project, also doesn't care about this
         return text.remove(QRegExp("<[^>]*>"));
     }
+    void bool_writeconfig(QString file, bool option) {
+        QString str;
+        if(option == true) {
+            str = "true";
+        }
+        else {
+            str = "false";
+        }
+        std::ofstream fhandler;
+        fhandler.open(file.toStdString());
+        fhandler << str.toStdString();
+        fhandler.close();
+    }
 }
 
 #endif // FUNCTIONS_H

src/homeWidget/mainwindow.cpp

@@ -5,6 +5,8 @@
 #include "apps.h"
 #include "ui_apps.h"
 #include "functions.h"
+#include "audiodialog.h"
+
 #include <QTime>
 #include <QDateTime>
 #include <QTimer>
@@ -28,6 +30,13 @@ MainWindow::MainWindow(QWidget *parent)
     , ui(new Ui::MainWindow)
 {
     ui->setupUi(this);
+
+    // Needed, the screen is shifted?
+    // ~Szybet
+    if(global::deviceID == "n306\n") {
+        ui->centralwidget->layout()->setContentsMargins(4, 5, 8, 8);
+    }
+
     ui->inkboxLabel->setFont(QFont("u001"));
 
     ui->settingsBtn->setProperty("type", "borderless");
@@ -39,6 +48,7 @@ MainWindow::MainWindow(QWidget *parent)
     ui->brightnessBtn->setProperty("type", "borderless");
     ui->homeBtn->setProperty("type", "borderless");
     ui->wifiBtn->setProperty("type", "borderless");
+    ui->audioBtn->setProperty("type", "borderless");
 
     ui->settingsBtn->setText("");
     ui->appsBtn->setText("");
@@ -50,6 +60,7 @@ MainWindow::MainWindow(QWidget *parent)
     ui->homeBtn->setText("");
     ui->quoteLabel->setText("");
     ui->wifiBtn->setText("");
+    ui->audioBtn->setText("");
 
     ui->quotePictureLabel->setText("");
 
@@ -132,6 +143,17 @@ MainWindow::MainWindow(QWidget *parent)
     ui->brightnessBtn->setIcon(QIcon(":/resources/frontlight.png"));
     ui->brightnessBtn->setIconSize(QSize(brightnessIconWidth, brightnessIconHeight));
 
+    if(global::audio::enabled == false) {
+        ui->audioBtn->hide();
+        ui->audioLine->hide();
+    }
+    else {
+        ui->audioBtn->setIcon(QIcon(":/resources/music-note.png"));
+        ui->audioBtn->setIconSize(QSize(wifiIconWidth, wifiIconHeight));
+        ui->labelLine_1->hide();
+        ui->labelLine_2->hide();
+    }
+
     updateWifiAble();
     if(global::device::isWifiAble == true) {
         // Start Wi-Fi icon updater
@@ -1055,3 +1077,9 @@ void MainWindow::setupHomePageWidget() {
     ui->homeStackedWidget->setCurrentIndex(2);
     global::mainwindow::tabSwitcher::homePageWidgetCreated = true;
 }
+
+void MainWindow::on_audioBtn_clicked()
+{
+    QDialog* newAudioDialog = new audioDialog(this);
+    newAudioDialog->exec();
+}

src/homeWidget/mainwindow.h

@@ -102,6 +102,7 @@ private slots:
     void setupLocalLibraryWidget();
     void setupHomePageWidget();
     void launchOnlineLibrary();
+    void on_audioBtn_clicked();
 
 private:
     Ui::MainWindow * ui;

src/homeWidget/mainwindow.ui

@@ -6,7 +6,7 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>706</width>
+    <width>749</width>
     <height>601</height>
    </rect>
   </property>
@@ -17,6 +17,37 @@
    <layout class="QVBoxLayout" name="verticalLayout">
     <item>
      <layout class="QGridLayout" name="gridLayout_2">
+      <item row="0" column="14">
+       <widget class="Line" name="line_9">
+        <property name="frameShadow">
+         <enum>QFrame::Plain</enum>
+        </property>
+        <property name="orientation">
+         <enum>Qt::Vertical</enum>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="4">
+       <widget class="QLabel" name="labelLine_2">
+        <property name="text">
+         <string>―</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="15">
+       <widget class="QLabel" name="batteryIcon">
+        <property name="text">
+         <string>batteryIcon</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="0">
+       <widget class="QPushButton" name="homeBtn">
+        <property name="text">
+         <string>Home</string>
+        </property>
+       </widget>
+      </item>
       <item row="0" column="1">
        <spacer name="horizontalSpacer">
         <property name="orientation">
@@ -30,23 +61,15 @@
         </property>
        </spacer>
       </item>
-      <item row="0" column="15">
+      <item row="0" column="9">
-       <widget class="QLabel" name="batteryLabel">
+       <widget class="QPushButton" name="brightnessBtn">
-        <property name="font">
-         <font>
-          <family>Inter</family>
-          <pointsize>11</pointsize>
-          <italic>false</italic>
-          <bold>true</bold>
-         </font>
-        </property>
         <property name="text">
-         <string>batt</string>
+         <string>Brightness</string>
         </property>
        </widget>
       </item>
-      <item row="0" column="16">
+      <item row="0" column="11">
-       <widget class="Line" name="line_8">
+       <widget class="Line" name="line_7">
         <property name="frameShadow">
          <enum>QFrame::Plain</enum>
         </property>
@@ -55,10 +78,13 @@
         </property>
        </widget>
       </item>
-      <item row="0" column="14">
+      <item row="0" column="7">
-       <widget class="QLabel" name="batteryIcon">
+       <widget class="Line" name="audioLine">
-        <property name="text">
+        <property name="frameShadow">
-         <string>batteryIcon</string>
+         <enum>QFrame::Plain</enum>
+        </property>
+        <property name="orientation">
+         <enum>Qt::Vertical</enum>
         </property>
        </widget>
       </item>
@@ -75,14 +101,60 @@
         </property>
        </spacer>
       </item>
-      <item row="0" column="4">
+      <item row="0" column="18">
-       <widget class="QLabel" name="label_2">
+       <widget class="QLabel" name="timeLabel">
+        <property name="font">
+         <font>
+          <family>Inter</family>
+          <pointsize>11</pointsize>
+          <italic>false</italic>
+          <bold>true</bold>
+         </font>
+        </property>
+        <property name="text">
+         <string>time</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="17">
+       <widget class="Line" name="line_8">
+        <property name="frameShadow">
+         <enum>QFrame::Plain</enum>
+        </property>
+        <property name="orientation">
+         <enum>Qt::Vertical</enum>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="2">
+       <widget class="QLabel" name="labelLine_1">
         <property name="text">
          <string>―</string>
         </property>
        </widget>
       </item>
-      <item row="0" column="12">
+      <item row="0" column="16">
+       <widget class="QLabel" name="batteryLabel">
+        <property name="font">
+         <font>
+          <family>Inter</family>
+          <pointsize>11</pointsize>
+          <italic>false</italic>
+          <bold>true</bold>
+         </font>
+        </property>
+        <property name="text">
+         <string>time</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="13">
        <widget class="QPushButton" name="wifiBtn">
         <property name="text">
          <string>Wi-Fi</string>
@@ -107,62 +179,10 @@
         </property>
        </widget>
       </item>
-      <item row="0" column="2">
+      <item row="0" column="6">
-       <widget class="QLabel" name="label">
+       <widget class="QPushButton" name="audioBtn">
         <property name="text">
-         <string>―</string>
+         <string>Audio</string>
-        </property>
-       </widget>
-      </item>
-      <item row="0" column="0">
-       <widget class="QPushButton" name="homeBtn">
-        <property name="text">
-         <string>Home</string>
-        </property>
-       </widget>
-      </item>
-      <item row="0" column="17">
-       <widget class="QLabel" name="timeLabel">
-        <property name="font">
-         <font>
-          <family>Inter</family>
-          <pointsize>11</pointsize>
-          <italic>false</italic>
-          <bold>true</bold>
-         </font>
-        </property>
-        <property name="text">
-         <string>time</string>
-        </property>
-        <property name="alignment">
-         <set>Qt::AlignCenter</set>
-        </property>
-       </widget>
-      </item>
-      <item row="0" column="8">
-       <widget class="QPushButton" name="brightnessBtn">
-        <property name="text">
-         <string>Brightness</string>
-        </property>
-       </widget>
-      </item>
-      <item row="0" column="10">
-       <widget class="Line" name="line_7">
-        <property name="frameShadow">
-         <enum>QFrame::Plain</enum>
-        </property>
-        <property name="orientation">
-         <enum>Qt::Vertical</enum>
-        </property>
-       </widget>
-      </item>
-      <item row="0" column="13">
-       <widget class="Line" name="line_9">
-        <property name="frameShadow">
-         <enum>QFrame::Plain</enum>
-        </property>
-        <property name="orientation">
-         <enum>Qt::Vertical</enum>
         </property>
        </widget>
       </item>

src/main.cpp

@@ -23,6 +23,7 @@
 #include "encryptionmanager.h"
 #include "sleepthread.h"
 #include "sleepdialog.h"
+#include "audiothread.h"
 
 #include <QApplication>
 #include <QFile>
@@ -103,6 +104,20 @@ int main(int argc, char *argv[])
     QObject::connect(sleepThreadWindow, &sleepThread::stopDialog, sleepDialogWindow, &sleepDialog::hideSleepDialog);
     IPDThread->start();
 
+    // Audio stuff
+    if(checkconfig(".config/e-2-audio/enabled") == true) {
+        log("Audio is enabled", "main");
+        global::audio::enabled = true;
+        QThread * audioThread = new QThread();
+        audiothread * audioObject = new audiothread();
+        audioObject->moveToThread(audioThread);
+        QObject::connect(audioThread, &QThread::started, audioObject, &audiothread::start);
+        audioThread->start();
+    }
+    else {
+        log("Audio is disabled", "main");
+    }
+
     if(checkconfig(".config/18-encrypted_storage/status") == true and checkconfig("/external_root/run/encfs_mounted") == false) {
         // Open Encryption Manager to unlock encrypted storage
         encryptionManager w;

src/widgets/dialogs/audio/audiodialog.cpp

@@ -0,0 +1,450 @@
+#include "audiodialog.h"
+#include "ui_audiodialog.h"
+#include "functions.h"
+#include "audiofile.h"
+#include "audiofilequeue.h"
+
+#include <sndfile.h>
+#include <unistd.h>
+#include <math.h>
+
+#include <QScreen>
+
+audioDialog::audioDialog(QWidget *parent) :
+    QDialog(parent),
+    ui(new Ui::audioDialog)
+{
+    ui->setupUi(this);
+    audioDialog::setFont(QFont("u001"));
+
+    progress = new QTimer(this);
+
+    // Size
+    QRect screenGeometry = QGuiApplication::screens()[0]->geometry();
+    this->setFixedWidth(screenGeometry.width() / 1.1);
+
+    int halfOfHalfHeight = ((screenGeometry.height() / 2) / 2) / 2;
+    int finalHeight = screenGeometry.height() - halfOfHalfHeight;
+
+    this->setFixedHeight(finalHeight);
+
+    // Centering dialog
+    int x = (screenGeometry.width() - this->width()) / 2;
+    int y = (screenGeometry.height() - this->height()) / 2;
+    this->move(x, y);
+
+    ui->minusBtn->setProperty("type", "borderless");
+    ui->plusBtn->setProperty("type", "borderless");
+    ui->exitBtn->setProperty("type", "borderless");
+    ui->nextBtn->setProperty("type", "borderless");
+    ui->previousBtn->setProperty("type", "borderless");
+    ui->playBtn->setProperty("type", "borderless");
+    ui->libraryBtn->setProperty("type", "borderless");
+    ui->queueBtn->setProperty("type", "borderless");
+    ui->refreshBtn->setProperty("type", "borderless");
+
+    int topButtonsSize = 55;
+    int menuButtonsSize = 80;
+    int playButtonsSize = 50;
+
+    ui->minusBtn->setIconSize(QSize{topButtonsSize,topButtonsSize});
+    ui->plusBtn->setIconSize(QSize{topButtonsSize,topButtonsSize});
+    ui->exitBtn->setIconSize(QSize{topButtonsSize,topButtonsSize});
+    ui->refreshBtn->setIconSize(QSize{topButtonsSize,topButtonsSize});
+
+    ui->nextBtn->setIconSize(QSize{playButtonsSize,playButtonsSize});
+    ui->previousBtn->setIconSize(QSize{playButtonsSize,playButtonsSize});
+    ui->playBtn->setIconSize(QSize{playButtonsSize,playButtonsSize});
+
+    ui->libraryBtn->setIconSize(QSize{menuButtonsSize,menuButtonsSize});
+    ui->queueBtn->setIconSize(QSize{menuButtonsSize,menuButtonsSize});
+
+    ui->fileNameLabel->setWordWrap(true);
+
+    // Default "page"
+    ui->libraryBtn->setStyleSheet("background: grey;");
+    ui->refreshBtn->setIcon(QIcon(":/resources/refresh-small.png"));
+    ui->refreshBtn->hide();
+    ui->lineRefresh->hide();
+
+    if(global::audio::firstScan == true) {
+        global::audio::firstScan = false;
+        refreshFileList();
+        log("Gathered files list", className);
+    }
+
+    refreshAudioFileWidgets();
+
+    progressFuncManage();
+    ui->progressSlider->setDisabled(true);
+
+    int autoRepeatDelay = 400;
+    int autoRepeatInterval = 20;
+
+    ui->plusBtn->setAutoRepeat(true);
+    ui->plusBtn->setAutoRepeatDelay(autoRepeatDelay);
+    ui->plusBtn->setAutoRepeatInterval(autoRepeatInterval);
+
+    ui->minusBtn->setAutoRepeat(true);
+    ui->minusBtn->setAutoRepeatDelay(autoRepeatDelay);
+    ui->minusBtn->setAutoRepeatInterval(autoRepeatInterval);
+
+    global::audio::audioMutex.lock();
+    ui->soundLevelSlider->setValue(global::audio::volumeLevel);
+
+    if(global::audio::isSomethingCurrentlyPlaying == true) {
+        ui->playBtn->setIcon(QIcon(":/resources/pause.png"));
+    }
+    global::audio::audioMutex.unlock();
+
+    finishedStartingUp = true;
+}
+
+audioDialog::~audioDialog()
+{
+    delete ui;
+}
+
+void audioDialog::changeMenu() {
+    log("Menu change requested", className);
+    if(currentMenu != Queue) {
+        currentMenu = Queue;
+        emit deleteItself();
+        ui->refreshBtn->show();
+        ui->lineRefresh->show();
+        ui->refreshBtn->setIcon(QIcon(":/resources/clean.png"));
+        ui->libraryBtn->setStyleSheet("background: white;");
+        ui->queueBtn->setStyleSheet("background: grey;");
+        refreshAudioFileWidgetsQueue();
+    }
+    else if(currentMenu != Library){
+        currentMenu = Library;
+        emit deleteItself();
+        ui->refreshBtn->hide();
+        ui->lineRefresh->hide();
+        ui->libraryBtn->setStyleSheet("background: grey;");
+        ui->queueBtn->setStyleSheet("background: white;");
+        refreshAudioFileWidgets();
+    }
+    ui->scrollArea->verticalScrollBar()->setValue(ui->scrollArea->verticalScrollBar()->minimum());
+}
+
+void audioDialog::on_libraryBtn_clicked()
+{
+    if(currentMenu != Library) {
+        changeMenu();
+    }
+}
+
+void audioDialog::on_queueBtn_clicked()
+{
+    if(currentMenu != Queue) {
+        changeMenu();
+    }
+}
+
+// Only on launching dialog
+void audioDialog::refreshFileList() {
+    log("Refreshing file list", className);
+    if(QFile(".config/e-2-audio/path").exists() == false) {
+        writeFile(".config/e-2-audio/path", "/mnt/onboard/onboard/music/");
+        log("Music config file doesn't exist, creating it", className);
+    }
+    // For example in this path: /mnt/onboard/onboard/music/ ( with / at the end )
+    QString path = readFile(".config/e-2-audio/path").replace("\n", "");
+    log("Path for audio files: " + path, className);
+    QDir dir{path};
+    // Other file formats could be added, by building more libraries
+    // https://github.com/arnavyc/sndfile-alsa-example/blob/main/src/sndfile-alsa.c
+    // https://github.com/libsndfile/libsndfile
+    // Is it easy to do? Yes. Does it take more space? Yes. Do I care? No, i have this fancy command:
+    // for i in *; do ffmpeg -i "$i" "${i%.*}.wav"; done
+    // (Szybet)
+    dir.setNameFilters(QStringList("*.wav"));
+    dir.setFilter(QDir::Files | QDir::NoDotAndDotDot | QDir::NoSymLinks);
+
+    QStringList fileList = dir.entryList();
+    log("Files count: " + QString::number(fileList.count()), className);
+    global::audio::audioMutex.lock();
+    for (int i = 0; i < fileList.count(); i++)
+    {
+        log("Audio file: " + fileList[i], className);
+        global::audio::musicFile newMusicFile;
+        newMusicFile.path = path + fileList[i];
+        log("File name path: " + newMusicFile.path, className);
+        QString tempName = fileList[i];
+        tempName.chop(4); // File extension
+        newMusicFile.name = tempName;
+        log("File name length: " + QString::number(fileList[i].length()), className);
+        log("File name: " + tempName, className);
+
+        // http://libsndfile.github.io/libsndfile/api#open_fd
+        /*
+            sf_count_t  frames ;
+            int         samplerate ;
+            int         channels ;
+            int         format ;
+            int         sections ;
+            int         seekable ;
+        */
+        SF_INFO sfinfo;
+        SNDFILE *wavFile = ::sf_open(newMusicFile.path.toStdString().c_str(), SFM_READ, &sfinfo);
+        // http://soundfile.sapp.org/doc/WaveFormat/
+        // https://stackoverflow.com/questions/53338925/get-the-audio-duration-using-libsndfile
+        int bareSeconds = static_cast<double>(sfinfo.frames) / (sfinfo.samplerate);
+        sf_close(wavFile);
+        newMusicFile.lengths = bareSeconds;
+        int countMin = 0;
+        while(bareSeconds >= 60) {
+            countMin = countMin + 1;
+            bareSeconds = bareSeconds - 60;
+        }
+        QString min = QString::number(countMin);
+        if(min.length() < 2) {
+            min = '0' + min;
+        }
+        QString sec = QString::number(bareSeconds);
+        if(sec.length() < 2) {
+            sec = '0' + sec;
+        }
+        newMusicFile.length = min + ":" + sec;
+        // To avoid shifting the line
+        while(newMusicFile.length.length() < 4) {
+            newMusicFile.length = newMusicFile.length + " ";
+        }
+        log("File length: " + newMusicFile.length, className);
+        newMusicFile.id = i;
+        global::audio::fileList.append(newMusicFile);
+    }
+    global::audio::audioMutex.unlock();
+    this->adjustSize();
+}
+
+void audioDialog::refreshAudioFileWidgets() {
+    global::audio::audioMutex.lock();
+    emit deleteItself();
+    // Doesn't work, freezes the app...
+    // QCoreApplication::processEvents();
+    for(int i = 0; i < global::audio::fileList.size(); i++) {
+        log("Adding new item number: " + QString::number(i), className);
+        audiofile* newAudioFile = new audiofile(this);
+        newAudioFile->provideData(global::audio::fileList[i]);
+        QObject::connect(this, &audioDialog::deleteItself, newAudioFile, &audiofile::die);
+        QObject::connect(newAudioFile, &audiofile::playFileChild, this, &audioDialog::playFile);
+        ui->verticalLayout->addWidget(newAudioFile, Qt::AlignTop);
+    }
+    global::audio::audioMutex.unlock();
+    this->adjustSize();
+}
+
+void audioDialog::refreshAudioFileWidgetsQueue() {
+    global::audio::audioMutex.lock();
+    emit deleteItself();
+    // Doesn't work, freezes the app...
+    // QCoreApplication::processEvents();
+    log("global::audio::itemCurrentlyPlaying: " + QString::number(global::audio::itemCurrentlyPlaying), className);
+    log("global::audio::isSomethingCurrentlyPlaying: " + QString::number(global::audio::isSomethingCurrentlyPlaying), className);
+
+    for(int i = 0; i < global::audio::queue.size(); i++) {
+        log("Adding new item: " + QString::number(i), className);
+        audiofilequeue* newAudioFileQueue = new audiofilequeue(this);
+        bool grey = false;
+        if(global::audio::isSomethingCurrentlyPlaying == true && global::audio::itemCurrentlyPlaying == i) {
+            grey = true;
+        }
+        global::audio::queue[i].id = i; // Give them invidual ID once more, because files can repeat
+        newAudioFileQueue->provideData(global::audio::queue[i], grey);
+        QObject::connect(this, &audioDialog::deleteItself, newAudioFileQueue, &audiofilequeue::die);
+        QObject::connect(newAudioFileQueue, &audiofilequeue::playFileChild, this, &audioDialog::playFile);
+        ui->verticalLayout->addWidget(newAudioFileQueue, Qt::AlignTop);
+    }
+    global::audio::audioMutex.unlock();
+}
+
+void audioDialog::on_refreshBtn_clicked()
+{
+    global::audio::audioMutex.lock();
+    global::audio::currentAction.append(global::audio::Action::Stop);
+    global::audio::isSomethingCurrentlyPlaying = false;
+    global::audio::queue.clear();
+    global::audio::audioMutex.unlock();
+    refreshAudioFileWidgetsQueue();
+}
+
+void audioDialog::playFile(int itemInQueue) {
+    log("Called playFile", className);
+
+    log("Calling stop to current actions to play a new file", className);
+    global::audio::audioMutex.lock();
+    // All those variables will be changed in audio thread too - but too late for progressFuncManage
+    global::audio::itemCurrentlyPlaying = itemInQueue;
+    global::audio::isSomethingCurrentlyPlaying = true;
+    global::audio::paused = false;
+    global::audio::songChanged = true;
+    global::audio::currentAction.append(global::audio::Action::Play);
+    global::audio::audioMutex.unlock();
+
+    progress->stop();
+    progressFuncManage();
+
+    ui->playBtn->setIcon(QIcon(":/resources/pause.png"));
+
+    if(currentMenu == Queue) {
+        refreshAudioFileWidgetsQueue();
+    }
+}
+
+void audioDialog::progressFuncManage() {
+    global::audio::audioMutex.lock();
+    // log("Called progress watcher", className);
+
+    bool requestWatcher = false;
+    bool requestQueueRefresh = false;
+
+    if(global::audio::isSomethingCurrentlyPlaying == true) {
+        if(ui->progressSlider->maximum() != global::audio::queue[global::audio::itemCurrentlyPlaying].lengths) {
+            ui->progressSlider->setMaximum(global::audio::queue[global::audio::itemCurrentlyPlaying].lengths);
+        }
+        // log("Changing slider position: " + QString::number(global::audio::progressSeconds), className);
+        ui->progressSlider->setSliderPosition(global::audio::progressSeconds);
+        if(global::audio::songChanged == true || finishedStartingUp == false) {
+           log("global::audio::queue.size(): " + QString::number(global::audio::queue.size()), className);
+           log("global::audio::itemCurrentlyPlaying: " + QString::number(global::audio::itemCurrentlyPlaying), className);
+           log("Setting song name...", className);
+
+           QString currentName = global::audio::queue[global::audio::itemCurrentlyPlaying].name;
+           // log("New name: " + currentName, className);
+           ui->fileNameLabel->setText(currentName);
+           if(currentMenu == Queue) {
+               requestQueueRefresh = true;
+           }
+           global::audio::songChanged = false;
+        }
+        if(global::audio::paused == false) {
+           requestWatcher = true;
+        }
+    } 
+    else {
+       ui->progressSlider->setSliderPosition(0);
+       ui->playBtn->setIcon(QIcon(":/resources/play.png"));
+       ui->fileNameLabel->setText("...");
+       if(currentMenu == Queue) {
+           requestQueueRefresh = true;
+       }
+       // log("Exiting progress watcher", className);
+    }
+    global::audio::audioMutex.unlock();
+
+    if(requestQueueRefresh == true) {
+       refreshAudioFileWidgetsQueue();
+    }
+
+    if(requestWatcher == true) {
+       // log("Launching another watcher...", className);
+       progress->singleShot(450, this, SLOT(progressFuncManage())); // For better accuracy, set 50
+    }
+}
+
+void audioDialog::on_progressSlider_sliderPressed()
+{
+    ui->progressSlider->releaseMouse();
+}
+
+void audioDialog::on_soundLevelSlider_valueChanged(int value)
+{
+    log("Setting volume level: " + QString::number(value), className);
+    // It detects if volume changes
+    if(finishedStartingUp == true) {
+        global::audio::audioMutex.lock();
+        global::audio::volumeLevel = value;
+        global::audio::audioMutex.unlock();
+    }
+}
+
+void audioDialog::on_plusBtn_clicked()
+{
+    ui->soundLevelSlider->setValue(ui->soundLevelSlider->value() + 1);
+}
+
+void audioDialog::on_minusBtn_clicked()
+{
+    ui->soundLevelSlider->setValue(ui->soundLevelSlider->value() - 1);
+}
+
+void audioDialog::on_playBtn_clicked()
+{
+    global::audio::audioMutex.lock();
+    if(global::audio::isSomethingCurrentlyPlaying == true) {
+        if(global::audio::paused == false) {
+            global::audio::paused = true;
+            global::audio::currentAction.append(global::audio::Action::Pause);
+            ui->playBtn->setIcon(QIcon(":/resources/play.png"));
+        }
+        else {
+            global::audio::paused = false;
+            global::audio::currentAction.append(global::audio::Action::Continue);
+            ui->playBtn->setIcon(QIcon(":/resources/pause.png"));
+            global::audio::audioMutex.unlock();
+            progressFuncManage();
+            return void();
+        }
+    }
+    else if(global::audio::queue.size() - 1 >= global::audio::itemCurrentlyPlaying && global::audio::itemCurrentlyPlaying > 0) {
+        int tmpInt = global::audio::itemCurrentlyPlaying;
+        global::audio::audioMutex.unlock();
+        playFile(tmpInt);
+        ui->playBtn->setIcon(QIcon(":/resources/pause.png"));
+        return void();
+    }
+    else {
+        ui->playBtn->setIcon(QIcon(":/resources/stop.png"));
+    }
+    global::audio::audioMutex.unlock();
+}
+
+void audioDialog::on_previousBtn_clicked()
+{
+    global::audio::audioMutex.lock();
+    int item = global::audio::itemCurrentlyPlaying;
+    item = item - 1;
+    if(item >= 0 && global::audio::queue.size() >= 1) {
+        global::audio::audioMutex.unlock();
+        playFile(item);
+        ui->previousBtn->setIcon(QIcon(":/resources/previous.png"));
+        ui->nextBtn->setIcon(QIcon(":/resources/next.png"));
+        return void();
+    } else {
+        ui->previousBtn->setIcon(QIcon(":/resources/stop.png"));
+    }
+    global::audio::audioMutex.unlock();
+}
+
+void audioDialog::on_nextBtn_clicked()
+{
+    global::audio::audioMutex.lock();
+    int item = global::audio::itemCurrentlyPlaying;
+    item = item + 1;
+    if(item >= 0 && item < global::audio::queue.size()) {
+        global::audio::audioMutex.unlock();
+        playFile(item);
+        ui->previousBtn->setIcon(QIcon(":/resources/previous.png"));
+        ui->nextBtn->setIcon(QIcon(":/resources/next.png"));
+        return void();
+    } else {
+        ui->nextBtn->setIcon(QIcon(":/resources/stop.png"));
+    }
+    global::audio::audioMutex.unlock();
+}
+
+void audioDialog::on_exitBtn_clicked()
+{
+    progress->stop();
+    progress->deleteLater();
+
+    // Make sure the mutex is unlocked
+    global::audio::audioMutex.tryLock();
+    global::audio::audioMutex.unlock();
+
+    this->deleteLater();
+    this->close();
+}

src/widgets/dialogs/audio/audiodialog.h

@@ -0,0 +1,57 @@
+#ifndef AUDIODIALOG_H
+#define AUDIODIALOG_H
+
+#include <QDialog>
+#include <QTimer>
+
+namespace Ui {
+class audioDialog;
+}
+
+class audioDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit audioDialog(QWidget *parent = nullptr);
+    ~audioDialog();
+    QString className = this->metaObject()->className();
+
+    enum audioMenu {
+        Library,
+        Queue,
+    };
+
+    bool currentMenu = Library;
+    void changeMenu();
+    void refreshFileList();
+    void refreshAudioFileWidgets();
+    void refreshAudioFileWidgetsQueue();
+    QTimer* progress; // Needs to be stopped at exit
+    bool finishedStartingUp = false;
+
+public slots:
+    void playFile(int itemInQueue); // Can be called from children
+    void progressFuncManage();
+
+private slots:
+    void on_libraryBtn_clicked();
+    void on_queueBtn_clicked();
+    void on_refreshBtn_clicked();
+    void on_progressSlider_sliderPressed();
+    void on_soundLevelSlider_valueChanged(int value);
+    void on_plusBtn_clicked();
+    void on_minusBtn_clicked();
+    void on_playBtn_clicked();
+    void on_previousBtn_clicked();
+    void on_nextBtn_clicked();
+    void on_exitBtn_clicked();
+
+signals:
+    void deleteItself();
+
+private:
+    Ui::audioDialog *ui;
+};
+
+#endif // AUDIODIALOG_H

src/widgets/dialogs/audio/audiodialog.ui

@@ -0,0 +1,384 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>audioDialog</class>
+ <widget class="QDialog" name="audioDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>603</width>
+    <height>489</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Dialog</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="3" column="0">
+    <widget class="QFrame" name="frame">
+     <property name="frameShape">
+      <enum>QFrame::Box</enum>
+     </property>
+     <property name="lineWidth">
+      <number>2</number>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout_2">
+      <item>
+       <layout class="QHBoxLayout" name="horizontalLayout_3">
+        <item>
+         <widget class="QPushButton" name="previousBtn">
+          <property name="text">
+           <string/>
+          </property>
+          <property name="icon">
+           <iconset resource="../../../eink.qrc">
+            <normaloff>:/resources/previous.png</normaloff>:/resources/previous.png</iconset>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QPushButton" name="playBtn">
+          <property name="text">
+           <string/>
+          </property>
+          <property name="icon">
+           <iconset resource="../../../eink.qrc">
+            <normaloff>:/resources/stop.png</normaloff>:/resources/stop.png</iconset>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QPushButton" name="nextBtn">
+          <property name="text">
+           <string/>
+          </property>
+          <property name="icon">
+           <iconset resource="../../../eink.qrc">
+            <normaloff>:/resources/next.png</normaloff>:/resources/next.png</iconset>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
+      <item>
+       <widget class="QLabel" name="fileNameLabel">
+        <property name="text">
+         <string>...</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QSlider" name="progressSlider">
+        <property name="focusPolicy">
+         <enum>Qt::NoFocus</enum>
+        </property>
+        <property name="maximum">
+         <number>100</number>
+        </property>
+        <property name="pageStep">
+         <number>1</number>
+        </property>
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="4" column="0">
+    <layout class="QHBoxLayout" name="horizontalLayout_2">
+     <item>
+      <widget class="QPushButton" name="libraryBtn">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Minimum" vsizetype="Minimum">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+       <property name="icon">
+        <iconset resource="../../../eink.qrc">
+         <normaloff>:/resources/music-library.png</normaloff>:/resources/music-library.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="Line" name="line">
+       <property name="frameShadow">
+        <enum>QFrame::Plain</enum>
+       </property>
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="queueBtn">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Minimum" vsizetype="Minimum">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+       <property name="icon">
+        <iconset resource="../../../eink.qrc">
+         <normaloff>:/resources/music-queue.png</normaloff>:/resources/music-queue.png</iconset>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item row="2" column="0">
+    <widget class="QScrollArea" name="scrollArea">
+     <property name="frameShape">
+      <enum>QFrame::NoFrame</enum>
+     </property>
+     <property name="frameShadow">
+      <enum>QFrame::Plain</enum>
+     </property>
+     <property name="lineWidth">
+      <number>0</number>
+     </property>
+     <property name="horizontalScrollBarPolicy">
+      <enum>Qt::ScrollBarAlwaysOff</enum>
+     </property>
+     <property name="widgetResizable">
+      <bool>true</bool>
+     </property>
+     <widget class="QWidget" name="scrollAreaWidgetContents">
+      <property name="geometry">
+       <rect>
+        <x>0</x>
+        <y>0</y>
+        <width>585</width>
+        <height>301</height>
+       </rect>
+      </property>
+      <layout class="QVBoxLayout" name="verticalLayout_3">
+       <property name="topMargin">
+        <number>0</number>
+       </property>
+       <item>
+        <layout class="QVBoxLayout" name="verticalLayout"/>
+       </item>
+       <item>
+        <spacer name="verticalSpacer">
+         <property name="orientation">
+          <enum>Qt::Vertical</enum>
+         </property>
+         <property name="sizeType">
+          <enum>QSizePolicy::MinimumExpanding</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>20</width>
+           <height>40</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+      </layout>
+     </widget>
+    </widget>
+   </item>
+   <item row="1" column="0">
+    <widget class="Line" name="line_4">
+     <property name="frameShadow">
+      <enum>QFrame::Plain</enum>
+     </property>
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="0">
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <property name="sizeConstraint">
+      <enum>QLayout::SetMinimumSize</enum>
+     </property>
+     <item>
+      <widget class="QPushButton" name="minusBtn">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+       <property name="icon">
+        <iconset resource="../../../eink.qrc">
+         <normaloff>:/resources/minus.png</normaloff>:/resources/minus.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QScrollBar" name="soundLevelSlider">
+       <property name="maximum">
+        <number>100</number>
+       </property>
+       <property name="pageStep">
+        <number>10</number>
+       </property>
+       <property name="sliderPosition">
+        <number>100</number>
+       </property>
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="plusBtn">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+       <property name="icon">
+        <iconset resource="../../../eink.qrc">
+         <normaloff>:/resources/plus.png</normaloff>:/resources/plus.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_4">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeType">
+        <enum>QSizePolicy::Fixed</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>5</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="Line" name="lineRefresh">
+       <property name="frameShadow">
+        <enum>QFrame::Plain</enum>
+       </property>
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_3">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeType">
+        <enum>QSizePolicy::Fixed</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>5</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QPushButton" name="refreshBtn">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+       <property name="icon">
+        <iconset resource="../../../eink.qrc">
+         <normaloff>:/resources/refresh-small.png</normaloff>:/resources/refresh-small.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeType">
+        <enum>QSizePolicy::Fixed</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>5</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="Line" name="line_2">
+       <property name="frameShadow">
+        <enum>QFrame::Plain</enum>
+       </property>
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer_2">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeType">
+        <enum>QSizePolicy::Fixed</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>5</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QPushButton" name="exitBtn">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+       <property name="icon">
+        <iconset resource="../../../eink.qrc">
+         <normaloff>:/resources/close.png</normaloff>:/resources/close.png</iconset>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="../../../eink.qrc"/>
+ </resources>
+ <connections/>
+</ui>

src/widgets/dialogs/audio/audiofile.cpp

@@ -0,0 +1,57 @@
+#include "audiofile.h"
+#include "ui_audiofile.h"
+#include "functions.h"
+
+audiofile::audiofile(QWidget *parent) :
+    QWidget(parent),
+    ui(new Ui::audiofile)
+{
+    ui->setupUi(this);
+    audiofile::setFont(QFont("u001"));
+
+    ui->nameLabel->setWordWrap(true);
+}
+
+audiofile::~audiofile()
+{
+    delete ui;
+}
+
+void audiofile::provideData(global::audio::musicFile fileProvided) {
+    file = fileProvided;
+    ui->nameLabel->setText(file.name);
+    ui->timeLabel->setText(file.length);
+}
+
+void audiofile::die() {
+    this->deleteLater();
+    this->close();
+}
+
+void audiofile::on_addBtn_clicked()
+{
+    ui->addBtn->setDisabled(true);
+    ui->addBtn->setStyleSheet("background: black;");
+
+    log("Adding item (audio file) to queue", className);
+    global::audio::audioMutex.lock();
+    global::audio::queue.append(file);
+    if(global::audio::isSomethingCurrentlyPlaying == false) {
+        log("Starting playback because nothing else is currently playing", className);
+        global::audio::isSomethingCurrentlyPlaying = true;
+        int tmpInt = global::audio::queue.length() - 1;
+        global::audio::audioMutex.unlock();
+        QTimer::singleShot(700, this, SLOT(enableButton()));
+        emit playFileChild(tmpInt);
+        return void();
+    }
+    global::audio::audioMutex.unlock();
+    QTimer::singleShot(700, this, SLOT(enableButton()));
+}
+
+void audiofile::enableButton() {
+    log("Enabling 'Back' button", className);
+    ui->addBtn->setEnabled(true);
+    ui->addBtn->setStyleSheet("background: white;");
+    ui->addBtn->repaint();
+}

src/widgets/dialogs/audio/audiofile.h

@@ -0,0 +1,38 @@
+#ifndef AUDIOFILE_H
+#define AUDIOFILE_H
+
+#include "functions.h"
+
+#include <QWidget>
+
+namespace Ui {
+class audiofile;
+}
+
+class audiofile : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit audiofile(QWidget *parent = nullptr);
+    ~audiofile();
+    QString className = this->metaObject()->className();
+    void provideData(global::audio::musicFile fileProvided);
+    global::audio::musicFile file;
+
+public slots:
+    void die();
+    void enableButton();
+
+private slots:
+
+    void on_addBtn_clicked();
+
+signals:
+    void playFileChild(int itemInQueue);
+
+private:
+    Ui::audiofile *ui;
+};
+
+#endif // AUDIOFILE_H

src/widgets/dialogs/audio/audiofile.ui

@@ -0,0 +1,114 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>audiofile</class>
+ <widget class="QWidget" name="audiofile">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>316</width>
+    <height>53</height>
+   </rect>
+  </property>
+  <property name="sizePolicy">
+   <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+    <horstretch>0</horstretch>
+    <verstretch>0</verstretch>
+   </sizepolicy>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout_2">
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QLabel" name="nameLabel">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeType">
+        <enum>QSizePolicy::Preferred</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QLabel" name="timeLabel">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="addBtn">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+       <property name="icon">
+        <iconset resource="../../../eink.qrc">
+         <normaloff>:/resources/plus.png</normaloff>:/resources/plus.png</iconset>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="Line" name="line_2">
+     <property name="frameShadow">
+      <enum>QFrame::Plain</enum>
+     </property>
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="../../../eink.qrc"/>
+ </resources>
+ <connections/>
+</ui>

src/widgets/dialogs/audio/audiofilequeue.cpp

@@ -0,0 +1,84 @@
+#include "audiofilequeue.h"
+#include "ui_audiofilequeue.h"
+
+audiofilequeue::audiofilequeue(QWidget *parent) :
+    QWidget(parent),
+    ui(new Ui::audiofilequeue)
+{
+    ui->setupUi(this);
+    audiofilequeue::setFont(QFont("u001"));
+
+    ui->nameLabel->setWordWrap(true);
+}
+
+audiofilequeue::~audiofilequeue()
+{
+    delete ui;
+}
+
+void audiofilequeue::provideData(global::audio::musicFile fileProvided, bool grey) {
+    file = fileProvided;
+    ui->nameLabel->setText(file.name);
+    ui->timeLabel->setText(file.length);
+    if(grey == true) {
+        log("Setting background grey", className);
+        ui->deleteBtn->setStyleSheet("background: grey;");
+        ui->playButton->setStyleSheet("background: grey;");
+        isPlaying = true;
+    }
+}
+
+void audiofilequeue::die() {
+    this->deleteLater();
+    this->close();
+}
+
+void audiofilequeue::on_deleteBtn_clicked()
+{
+    int id = -1;
+    log("global::audio::queue.size(): " + QString::number(global::audio::queue.size()), className);
+    global::audio::audioMutex.lock();
+    for(int i = 0; i < global::audio::queue.size(); i++) {
+        if(file.id == global::audio::queue[i].id) {
+            log("Found ID", className);
+            id = i;
+        }
+    }
+
+    log("File ID is: " + QString::number(id), className);
+    global::audio::queue.remove(id);
+    // TODO: Don't change song if the removed item is not playing
+    // I will do it the moment I get annoyed about it
+    log("After removing global::audio::queue.size(): " + QString::number(global::audio::queue.size()), className);
+    if(id - 2 >= 0) {
+        global::audio::audioMutex.unlock();
+        emit playFileChild(id - 2);
+        return void();
+    } 
+    else if(id < global::audio::queue.size()) {
+        global::audio::audioMutex.unlock();
+        emit playFileChild(id);
+        return void();
+    }
+    else {
+        global::audio::currentAction.append(global::audio::Action::Stop);
+        global::audio::audioMutex.unlock();
+        return void();
+    }
+    log("Something went wrong in deleting item that was in the query", className);
+    global::audio::audioMutex.unlock();
+}
+
+void audiofilequeue::on_playButton_clicked()
+{
+    global::audio::audioMutex.lock();
+    for(int i = 0; i < global::audio::queue.size(); i++) {
+        if(global::audio::queue[i].id == file.id) {
+            global::audio::audioMutex.unlock();
+            emit playFileChild(i);
+            return void();
+        }
+    }
+    global::audio::audioMutex.unlock();
+    log("Something went really wrong", className);
+}

src/widgets/dialogs/audio/audiofilequeue.h

@@ -0,0 +1,38 @@
+#ifndef AUDIOFILEQUEUE_H
+#define AUDIOFILEQUEUE_H
+
+#include <QWidget>
+#include "functions.h"
+
+namespace Ui {
+class audiofilequeue;
+}
+
+class audiofilequeue : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit audiofilequeue(QWidget *parent = nullptr);
+    ~audiofilequeue();
+    QString className = this->metaObject()->className();
+    bool isPlaying = false;
+
+    void provideData(global::audio::musicFile fileProvided, bool grey);
+    global::audio::musicFile file;
+
+public slots:
+    void die();
+
+private:
+    Ui::audiofilequeue *ui;
+
+signals:
+    void playFileChild(int itemInQueue);
+
+private slots:
+    void on_deleteBtn_clicked();
+    void on_playButton_clicked();
+};
+
+#endif // AUDIOFILEQUEUE_H

src/widgets/dialogs/audio/audiofilequeue.ui

@@ -0,0 +1,134 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>audiofilequeue</class>
+ <widget class="QWidget" name="audiofilequeue">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>284</width>
+    <height>53</height>
+   </rect>
+  </property>
+  <property name="sizePolicy">
+   <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+    <horstretch>0</horstretch>
+    <verstretch>0</verstretch>
+   </sizepolicy>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QLabel" name="nameLabel">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeType">
+        <enum>QSizePolicy::Preferred</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QLabel" name="timeLabel">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="deleteBtn">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+       <property name="icon">
+        <iconset resource="../../../eink.qrc">
+         <normaloff>:/resources/close.png</normaloff>:/resources/close.png</iconset>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QPushButton" name="playButton">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string/>
+       </property>
+       <property name="icon">
+        <iconset resource="../../../eink.qrc">
+         <normaloff>:/resources/chevron-right.png</normaloff>:/resources/chevron-right.png</iconset>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="Line" name="line_2">
+     <property name="frameShadow">
+      <enum>QFrame::Plain</enum>
+     </property>
+     <property name="lineWidth">
+      <number>2</number>
+     </property>
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="../../../eink.qrc"/>
+ </resources>
+ <connections/>
+</ui>

src/widgets/dialogs/generaldialog.cpp

@@ -142,7 +142,16 @@ generalDialog::generalDialog(QWidget *parent) :
     else if(global::text::textBrowserDialog == true) {
         textBrowserDialog = true;
         textwidgetWindow = new textwidget();
-        ui->headerLabel->setText("Information");
+        
+        if(global::text::textBrowserTitle.isEmpty() == true) {
+            ui->headerLabel->setText("Information");
+        }
+        else {
+            ui->headerLabel->setText(global::text::textBrowserTitle);
+        }
+        // Important
+        ui->bodyLabel->setText(global::text::textBrowserContents);
+        
         ui->stackedWidget->setCurrentIndex(1);
         ui->mainStackedWidget->insertWidget(1, textwidgetWindow);
         ui->mainStackedWidget->setCurrentIndex(1);
@@ -584,11 +593,13 @@ void generalDialog::on_acceptBtn_clicked()
     }
     if(textBrowserDialog == true) {
         global::text::textBrowserContents = "";
+        global::text::textBrowserTitle = "";
         global::text::textBrowserDialog = false;
     }
 
     if(appInfoDialog == true) {
         global::text::textBrowserContents = "";
+        global::text::textBrowserTitle = "";
         global::userApps::appInfoDialog = false;
     }