WIP: Feature/joonne/data storage

harbour-nayttamo.pro

@@ -15,7 +15,8 @@ TARGET = harbour-nayttamo
 CONFIG += sailfishapp libcrypto
 
 SOURCES += src/harbour-nayttamo.cpp \
-    src/urldecrypt.cpp
+    src/urldecrypt.cpp \
+    src/serializer.cpp
 
 OTHER_FILES += \
     qml/cover/CoverPage.qml \
@@ -73,6 +74,7 @@ REQUIRED = $$find(DEFINES, "APP_ID") $$find(DEFINES, "APP_KEY") $$find(DEFINES,
 }
 
 HEADERS += \
-    src/urldecrypt.h
+    src/urldecrypt.h \
+    src/serializer.h
 
 unix: PKGCONFIG += libcrypto

qml/main.qml

@@ -1,6 +1,7 @@
 import QtQuick 2.2
 import Sailfish.Silica 1.0
 import QtMultimedia 5.5
+
 import "pages"
 
 ApplicationWindow
@@ -11,6 +12,49 @@ ApplicationWindow
     property string coverTitle: ""
     property string coverSubTitle: ""
 
+    property var state: null
+
+    onStateChanged: {
+        if (state === null) {
+            console.log('initialization, do not set the state')
+            return
+        }
+        serializer.setState(state)
+    }
+
+    Component.onCompleted: {
+        state = serializer.getState()
+    }
+
+    function setState(path, value) {
+        function setStateRecursive(obj, path, value) {
+            if (!Array.isArray(path)) {
+                path = path.split('.')
+            }
+
+            if (path.length === 1) {
+                obj[path[0]] = value
+                return
+            }
+
+            if (!obj[path[0]]) {
+                obj[path[0]] = {}
+            }
+
+            return setStateRecursive(obj[path[0]], path.slice(1), value)
+        }
+
+        var newState = JSON.parse(JSON.stringify(state))
+        console.log('start', JSON.stringify(newState))
+        setStateRecursive(newState, path, value)
+        console.log("done", JSON.stringify(newState))
+        state = newState
+    }
+
+    function insertStartedProgram(program) {
+        setState('startedPrograms.' + program.id, program.progress)
+    }
+
     function updateCover(newCoverMode, newCoverTitle, newCoverSubtitle) {
         coverMode = newCoverMode ? newCoverMode : ""
         coverTitle = newCoverTitle ? newCoverTitle : ""
@@ -25,4 +69,3 @@ ApplicationWindow
     cover: Qt.resolvedUrl("cover/CoverPage.qml")
     allowedOrientations: defaultAllowedOrientations
 }
-

qml/pages/PlayerPage.qml

@@ -33,6 +33,10 @@ Page {
         if (visible) updateCover(qsTr("Now playing"), program.title, program.itemTitle)
     }
 
+    Component.onDestruction: {
+        appWindow.insertStartedProgram({ id: program.id, progress: mediaPlayer.position })
+    }
+
     function initialize() {
         YleApi.getMediaUrl(program.id, program.mediaId)
             .then(function(response) {
@@ -41,6 +45,7 @@ Page {
                     subtitlesText.getSubtitles(subtitlesUrl)
                 }
                 mediaPlayer.source = response.url
+                if (appWindow.state.startedPrograms[program.id]) mediaPlayer.seek(appWindow.state.startedPrograms[program.id])
                 mediaPlayer.play()
                 YleApi.reportUsage(program.id, program.mediaId)
             })

src/harbour-nayttamo.cpp

@@ -40,6 +40,7 @@
 
 #include <sailfishapp.h>
 #include "urldecrypt.h"
+#include "serializer.h"
 
 int main(int argc, char *argv[])
 {
@@ -55,6 +56,15 @@ int main(int argc, char *argv[])
 
     view->rootContext()->setContextProperty("urlDecrypt", &urlDecrypt);
 
+    auto worker = new QThread;
+
+    QScopedPointer<Serializer> serializer(new Serializer);
+    view->rootContext()->setContextProperty("serializer", serializer.data());
+    serializer->moveToThread(worker);
+
+    QObject::connect(worker, SIGNAL(finished()), worker, SLOT(deleteLater()));
+    worker->start();
+
     view->engine()->addImportPath(SailfishApp::pathTo("qml/components").toString());
     view->setSource(SailfishApp::pathTo("qml/main.qml"));
 

src/serializer.cpp

@@ -0,0 +1,81 @@
+#include "serializer.h"
+
+#include <QFile>
+#include <QJsonArray>
+#include <QJsonDocument>
+#include <QTextStream>
+#include <QStandardPaths>
+#include <QDir>
+#include <QDebug>
+
+Serializer::Serializer(QObject *parent) : QObject(parent)
+{
+    this->ensureDir();
+    this->readState();
+}
+
+Serializer::~Serializer()
+{
+    this->writeState();
+}
+
+QJsonObject Serializer::getInitialState() const
+{
+    return QJsonObject
+    {
+        {"startedPrograms", QJsonObject()}
+    };
+}
+
+bool Serializer::readState()
+{
+    QFile file(this->getPath());
+
+    if (!file.open(QIODevice::ReadWrite)) {
+        return false;
+    }
+
+    auto json = (QJsonDocument::fromJson(file.readAll())).object();
+
+    this->m_state = json.empty() ? this->getInitialState() : json;
+
+    return true;
+}
+
+bool Serializer::writeState() const
+{
+    QFile file(this->getPath());
+
+    if (!file.open(QIODevice::ReadWrite)) {
+        return false;
+    }
+
+    QJsonDocument saveDoc(m_state);
+    file.write(saveDoc.toJson());
+
+    return true;
+}
+
+void Serializer::setState(QJsonObject state)
+{
+    m_state = state;
+}
+
+QJsonObject Serializer::getState()
+{
+    return m_state;
+}
+
+void Serializer::ensureDir() const
+{
+    QDir dir(QStandardPaths::writableLocation(QStandardPaths::DataLocation));
+
+    if (!dir.exists()) {
+        dir.mkpath(".");
+    }
+}
+
+QString Serializer::getPath() const
+{
+    return QStandardPaths::writableLocation(QStandardPaths::DataLocation) + QDir::separator() + "state.json";
+}

src/serializer.h

@@ -0,0 +1,29 @@
+#ifndef SERIALIZER_H
+#define SERIALIZER_H
+
+#include <QObject>
+#include <QJsonObject>
+
+class Serializer : public QObject
+{
+    Q_OBJECT
+public:
+    explicit Serializer(QObject *parent = 0);
+    ~Serializer();
+
+    Q_INVOKABLE void setState(QJsonObject state);
+    Q_INVOKABLE QJsonObject getState();
+
+signals:
+public slots:
+private:
+    bool readState();
+    bool writeState() const;
+    QString getPath() const;
+    void ensureDir() const;
+    QJsonObject getInitialState() const;
+
+    QJsonObject m_state;
+};
+
+#endif // SERIALIZER_H