Implement 'Generating database' toast; various improvements

functions.h

@@ -130,6 +130,7 @@ namespace global {
         static inline QString rawDatabasePath = "/inkbox/LocalLibrary.db.raw";
         static inline QString databasePath = "/mnt/onboard/onboard/.inkbox/LocalLibrary.db";
         static inline QString recentBooksDatabasePath = "/mnt/onboard/onboard/.inkbox/RecentBooks.db";
+        inline bool headless;
     }
     namespace localStorage {
         inline QStringList searchResultsPaths;
@@ -145,9 +146,9 @@ namespace global {
         inline bool launchApp;
     }
     namespace homePageWidget {
-        inline int recentBooksNumber = 8;
-        inline int recentBooksNumberPerRow = 4;
-        inline int recentBooksRowNumber = global::homePageWidget::recentBooksNumber / global::homePageWidget::recentBooksNumberPerRow;
+        static inline int recentBooksNumber = 8;
+        static inline int recentBooksNumberPerRow = 4;
+        static inline int recentBooksRowNumber = global::homePageWidget::recentBooksNumber / global::homePageWidget::recentBooksNumberPerRow;
     }
     inline QString systemInfoText;
     inline bool forbidOpenSearchDialog;

homepagewidget.cpp

@@ -61,6 +61,35 @@ homePageWidget::homePageWidget(QWidget *parent) :
         stdIconHeight = sH / stdIconHeightDivider;
     }
 
+    if(!QFile::exists(global::localLibrary::databasePath)) {
+        global::toast::modalToast = true;
+        global::toast::indefiniteToast = true;
+        showToast("Generating database");
+        QTimer::singleShot(100, this, SLOT(setupDisplayWithDatabase()));
+    }
+    else {
+        setupDisplay(false);
+    }
+}
+
+homePageWidget::~homePageWidget()
+{
+    delete ui;
+}
+
+void homePageWidget::openBook(QString bookPath) {
+    emit openBookSignal(bookPath, false);
+}
+
+void homePageWidget::refreshScreenNative() {
+    emit refreshScreen();
+}
+
+void homePageWidget::setupDisplay(bool databaseGenerated) {
+    if(databaseGenerated == true) {
+        toastWindow->close();
+    }
+
     log("Reading database", className);
     QFile database(global::localLibrary::databasePath);
     QByteArray data;
@@ -90,10 +119,12 @@ homePageWidget::homePageWidget(QWidget *parent) :
             bookTitleArray[i] = new QToolTipLabel(this);
 
             // Iterate until we find a book matching the recently opened book's "BookPath" key/value pair
-            for(int in = i; in <= databaseBooksNumber; in++) {
+            for(int in = 1; in <= databaseBooksNumber; in++) {
                 QJsonObject bookJsonObject = databaseJsonArrayList.at(in - 1).toObject();
-                if(bookJsonObject["BookPath"] == bookPath) {
-                    bookBtnArray[i]->setObjectName(QJsonDocument(bookJsonObject).toJson());
+                if(bookJsonObject["BookPath"].toString() == bookPath) {
+                    QByteArray data = qCompress(QJsonDocument(bookJsonObject).toJson()).toBase64();
+                    QString dataString = QString(data);
+                    bookBtnArray[i]->setObjectName(dataString);
                 }
             }
 
@@ -110,7 +141,8 @@ homePageWidget::homePageWidget(QWidget *parent) :
             bookTitleArray[i]->setFont(QFont("u001"));
             bookTitleArray[i]->setStyleSheet("font-size: 7pt");
 
-            QString bookTitle = QJsonDocument::fromJson(bookBtnArray[i]->objectName().toUtf8()).object()["Title"].toString();
+            QJsonObject uncompressedJsonObject = QJsonDocument::fromJson(qUncompress(QByteArray::fromBase64(bookBtnArray[i]->objectName().toUtf8()))).object();
+            QString bookTitle = uncompressedJsonObject["Title"].toString();
             bookTitleArray[i]->setObjectName(bookTitle);
 
             int localBookTitleTruncateThreshold;
@@ -126,7 +158,7 @@ homePageWidget::homePageWidget(QWidget *parent) :
             }
             bookTitleArray[i]->setText(bookTitle);
 
-            QString bookIcon = QJsonDocument::fromJson(bookBtnArray[i]->objectName().toUtf8()).object()["CoverPath"].toString();
+            QString bookIcon = uncompressedJsonObject["CoverPath"].toString();
             if(QFile::exists(bookIcon)) {
                 bookBtnArray[i]->setPixmap(QPixmap(bookIcon).scaled(stdIconWidth, stdIconHeight, Qt::KeepAspectRatio));
             }
@@ -154,15 +186,21 @@ homePageWidget::homePageWidget(QWidget *parent) :
     QTimer::singleShot(500, this, SLOT(refreshScreenNative()));
 }
 
-homePageWidget::~homePageWidget()
-{
-    delete ui;
+void homePageWidget::setupDisplaySlot() {
+    setupDisplay(true);
 }
 
-void homePageWidget::openBook(QString bookPath) {
-    emit openBookSignal(bookPath, false);
+void homePageWidget::setupDisplayWithDatabase() {
+    global::localLibrary::headless = true;
+    localLibraryWidget * localLibraryWidgetWindow = new localLibraryWidget(this);
+    localLibraryWidgetWindow->setAttribute(Qt::WA_DeleteOnClose);
+    localLibraryWidgetWindow->hide();
+    QObject::connect(localLibraryWidgetWindow, &localLibraryWidget::destroyed, this, &homePageWidget::setupDisplaySlot);
 }
 
-void homePageWidget::refreshScreenNative() {
-    emit refreshScreen();
+void homePageWidget::showToast(QString messageToDisplay) {
+    global::toast::message = messageToDisplay;
+    toastWindow = new toast(this);
+    toastWindow->setAttribute(Qt::WA_DeleteOnClose);
+    toastWindow->show();
 }

homepagewidget.h

@@ -5,6 +5,8 @@
 #include <QVBoxLayout>
 #include "qclickablelabel.h"
 #include "qtooltiplabel.h"
+#include "locallibrarywidget.h"
+#include "toast.h"
 
 namespace Ui {
 class homePageWidget;
@@ -33,9 +35,15 @@ signals:
 private slots:
     void openBook(QString bookPath);
     void refreshScreenNative();
+    void setupDisplay(bool databaseGenerated);
+    void setupDisplaySlot();
+    void setupDisplayWithDatabase();
+    void showToast(QString messageToDisplay);
 
 private:
     Ui::homePageWidget *ui;
+    localLibraryWidget * localLibraryWidgetWindow;
+    toast * toastWindow;
     QVector<QToolTipLabel*> bookTitleArray;
     QVector<QHBoxLayout*> horizontalLayoutArray;
     QVector<QVBoxLayout*> verticalLayoutArray;

locallibrarywidget.cpp

@@ -70,8 +70,8 @@ localLibraryWidget::localLibraryWidget(QWidget *parent) :
         stdIconHeight = sH / stdIconHeightDivider;
     }
     else if(global::deviceID == "n873\n") {
-        stdIconWidthDivider = 7.5;
-        stdIconHeightDivider = 7.5;
+        stdIconWidthDivider = 9.7;
+        stdIconHeightDivider = 9.7;
         stdIconWidth = sW / stdIconWidthDivider;
         stdIconHeight = sH / stdIconHeightDivider;
     }
@@ -111,16 +111,13 @@ localLibraryWidget::localLibraryWidget(QWidget *parent) :
             ui->booksVerticalLayout->addWidget(lineArray[i]);
         }
     }
-    setupDatabase();
-    if(noBooksInDatabase == false) {
-        setupBooksList(currentPageNumber);
-    }
-    else {
-        ui->previousPageBtn->setEnabled(false);
-        ui->nextPageBtn->setEnabled(false);
-        ui->pageNumberLabel->setText("1 <i>of</i> 1");
-        ui->stackedWidget->setCurrentIndex(1);
+
+    if(!QFile::exists(global::localLibrary::databasePath)) {
+        global::toast::modalToast = true;
+        global::toast::indefiniteToast = true;
+        showToast("Generating database");
     }
+    QTimer::singleShot(100, this, SLOT(setupDisplay()));
 }
 
 localLibraryWidget::~localLibraryWidget()
@@ -151,13 +148,14 @@ void localLibraryWidget::setupDatabase() {
         args << "env" << "icon_width_divider=" + QString::number(stdIconWidthDivider - 1.5) << "icon_height_divider=" + QString::number(stdIconHeightDivider - 1.5) << "./explore_local_library.sh" << booksList;
         QProcess *proc = new QProcess();
         proc->start(prog, args);
-        proc->waitForFinished();
+        proc->waitForFinished(-1);
         QJsonDocument jsonDocument = QJsonDocument::fromJson(readFile(global::localLibrary::rawDatabasePath).toUtf8());
         QFile::remove(global::localLibrary::rawDatabasePath);
         proc->deleteLater();
 
         // Write database in compressed form, encoded in Base64 format
         writeFile(global::localLibrary::databasePath, qCompress(jsonDocument.toJson()).toBase64());
+        toastWindow->close();
     }
 
     // Read library database from file
@@ -190,6 +188,11 @@ void localLibraryWidget::setupDatabase() {
             ui->nextPageBtn->setEnabled(false);
         }
     }
+
+    if(global::localLibrary::headless == true) {
+        global::localLibrary::headless = false;
+        localLibraryWidget::close();
+    }
 }
 
 void localLibraryWidget::setupBooksList(int pageNumber) {
@@ -253,19 +256,26 @@ void localLibraryWidget::setupBooksList(int pageNumber) {
     for(int i = 0; i <= 1; i++) {
         ui->verticalLayout->addItem(new QSpacerItem(0, 0, QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding));
     }
-}
 
-void localLibraryWidget::on_previousPageBtn_clicked()
-{
-    currentPageNumber--;
+    // Set boundaries for 'Previous'/'Next' page turn buttons
+    currentPageNumber = pageNumber;
     if(currentPageNumber - 1 < 1) {
         ui->previousPageBtn->setEnabled(false);
         ui->nextPageBtn->setEnabled(true);
     }
+    else if(currentPageNumber + 1 > pagesNumber) {
+        ui->previousPageBtn->setEnabled(true);
+        ui->nextPageBtn->setEnabled(false);
+    }
     else {
         ui->previousPageBtn->setEnabled(true);
         ui->nextPageBtn->setEnabled(true);
     }
+}
+
+void localLibraryWidget::on_previousPageBtn_clicked()
+{
+    currentPageNumber--;
     setupBooksList(currentPageNumber);
 
     pagesTurned = pagesTurned + 1;
@@ -279,14 +289,6 @@ void localLibraryWidget::on_previousPageBtn_clicked()
 void localLibraryWidget::on_nextPageBtn_clicked()
 {
     currentPageNumber++;
-    if(currentPageNumber + 1 > pagesNumber) {
-        ui->previousPageBtn->setEnabled(true);
-        ui->nextPageBtn->setEnabled(false);
-    }
-    else {
-        ui->previousPageBtn->setEnabled(true);
-        ui->nextPageBtn->setEnabled(true);
-    }
     setupBooksList(currentPageNumber);
 
     pagesTurned = pagesTurned + 1;
@@ -331,3 +333,23 @@ void localLibraryWidget::goToPage(int page) {
 void localLibraryWidget::refreshScreenNative() {
     emit refreshScreen();
 }
+
+void localLibraryWidget::setupDisplay() {
+    setupDatabase();
+    if(noBooksInDatabase == false) {
+        setupBooksList(currentPageNumber);
+    }
+    else {
+        ui->previousPageBtn->setEnabled(false);
+        ui->nextPageBtn->setEnabled(false);
+        ui->pageNumberLabel->setText("1 <i>of</i> 1");
+        ui->stackedWidget->setCurrentIndex(1);
+    }
+}
+
+void localLibraryWidget::showToast(QString messageToDisplay) {
+    global::toast::message = messageToDisplay;
+    toastWindow = new toast(this);
+    toastWindow->setAttribute(Qt::WA_DeleteOnClose);
+    toastWindow->show();
+}

locallibrarywidget.h

@@ -8,6 +8,7 @@
 #include "functions.h"
 #include "qclickablelabel.h"
 #include "generaldialog.h"
+#include "toast.h"
 
 namespace Ui {
 class localLibraryWidget;
@@ -49,10 +50,13 @@ private slots:
     void refreshScreenNative();
     void openGoToPageDialog();
     void goToPage(int page);
+    void setupDisplay();
+    void showToast(QString messageToDisplay);
 
 private:
     Ui::localLibraryWidget * ui;
     generalDialog * generalDialogWindow;
+    toast * toastWindow;
     QVector<QHBoxLayout*> horizontalLayoutArray;
     QVector<QLabel*> bookIconArray;
     QVector<QClickableLabel*> bookBtnArray;

qclickablelabel.cpp

@@ -23,7 +23,7 @@ void QClickableLabel::mousePressEvent(QMouseEvent * event) {
 void QClickableLabel::mouseReleaseEvent(QMouseEvent * event) {
     emit unclicked();
     emit bookID(objectName().toInt());
-    emit bookPath(QJsonDocument::fromJson(objectName().toUtf8()).object()["BookPath"].toString());
+    emit bookPath(QJsonDocument::fromJson(qUncompress(QByteArray::fromBase64(objectName().toUtf8()))).object()["BookPath"].toString());
     if(objectName() == "pageNumberLabel") {
         QClickableLabel::setStyleSheet("color: black; background-color: white; border-radius: 10px; padding-left: 10px; padding-right: 10px");
     }

reader.cpp

@@ -622,6 +622,7 @@ reader::reader(QWidget *parent) :
     // Way to tell shell scripts that we're in the Reader framework
     string_writeconfig("/tmp/inkboxReading", "true");
 
+    // Maintain a 'Recent books' list
     QJsonObject recentBooksObject;
     if(QFile::exists(global::localLibrary::recentBooksDatabasePath)) {
         QJsonObject mainJsonObject = QJsonDocument::fromJson(readFile(global::localLibrary::recentBooksDatabasePath).toUtf8()).object();