Introduce Export/Import (to file) Reading List

resources/css/style.css

@@ -329,3 +329,18 @@ ContentTypeFilter {
     font-size: 16px;
     margin-bottom: 10px;
 }
+
+#readinglistbar QPushButton {
+    margin-left: 4px;
+}
+
+#readinglistbar QPushButton::hover {
+    border: 1px solid #3366CC;
+    background-color: #D9E9FF;
+    border-radius: 3px;
+}
+
+#readinglistbar QPushButton::menu-indicator {
+    width: 0;
+    height: 0;
+}

resources/i18n/en.json

@@ -173,5 +173,9 @@
     "file-not-found-text": "ZIM file doesn't exist or is not readable",
     "zim-id": "Zim Id",
     "zim-name": "Zim Name",
-    "zim-path": "Zim File Path"
+    "zim-path": "Zim File Path",
+    "export-reading-list": "Export reading list",
+    "export-reading-list-error": "An error has occured during export of the reading list.",
+    "import-reading-list": "Import reading list",
+    "import-reading-list-error": "An error has occured during import of the reading list."
 }

resources/i18n/qqq.json

@@ -180,5 +180,9 @@
 	"file-not-found-text": "Error description text for when the desktop application cannot find the Zim file needed to display the web page.",
 	"zim-id": "The term for the unique identifier of a zim file.",
 	"zim-name": "The term for the name of a Zim file",
-	"zim-path": "The term for the path of a Zim file"
+	"zim-path": "The term for the path of a Zim file",
+	"export-reading-list": "Represents the action of exporting the reading list to a file.",
+	"export-reading-list-error": "Error description text for when exporting the reading list to a file failed.",
+	"import-reading-list": "Represents the action of importing a reading list from a file.",
+	"import-reading-list-error": "Error description text for when importing a reading list from a file failed."
 }

resources/kiwix.qrc

@@ -64,5 +64,6 @@
         <file>icons/check-solid.svg</file>
         <file>icons/xmark-solid.svg</file>
         <file>icons/home-button.svg</file>
+        <file>icons/more-vertical.svg</file>
     </qresource>
 </RCC>

src/kiwixapp.cpp

@@ -461,6 +461,10 @@ void KiwixApp::createActions()
 
     CREATE_ACTION_ONOFF_ICON_SHORTCUT(ToggleReadingListAction, "reading-list-active", "reading-list", gt("reading-list"), QKeySequence(Qt::CTRL | Qt::Key_B));
 
+    CREATE_ACTION(ExportReadingListAction, gt("export-reading-list"));
+
+    CREATE_ACTION(ImportReadingListAction, gt("import-reading-list"));
+
     CREATE_ACTION_ONOFF_ICON_SHORTCUT(ToggleAddBookmarkAction, "star-active", "star", gt("add-bookmark"), QKeySequence(Qt::CTRL | Qt::Key_D));
 
     CREATE_ACTION_SHORTCUTS(ZoomInAction, gt("zoom-in"), QList<QKeySequence>({QKeySequence::ZoomIn, QKeySequence(Qt::CTRL | Qt::Key_Equal)}));

src/kiwixapp.h

@@ -62,6 +62,8 @@ class KiwixApp : public QtSingleApplication
         SettingAction,
         DonateAction,
         ExitAction,
+        ExportReadingListAction,
+        ImportReadingListAction,
         MAX_ACTION
     };
 

src/library.cpp

@@ -209,6 +209,16 @@ Library::QStringSet Library::getLibraryZimsFromDir(QString dir) const
     return zimsInDir;
 }
 
+bool Library::readBookMarksFile(const std::string &filename)
+{
+    kiwix::Manager manager(mp_library);
+    if (!manager.readBookmarkFile(filename))
+        return false;
+
+    emit bookmarksChanged();
+    return true;
+}
+
 const kiwix::Book &Library::getBookById(QString id) const
 {
     return mp_library->getBookById(id.toStdString());

src/library.h

@@ -45,6 +45,7 @@ class Library : public QObject
     void removeBookFromLibraryById(const QString& id);
     void addBookmark(kiwix::Bookmark& bookmark);
     void removeBookmark(const QString& zimId, const QString& url);
+    bool readBookMarksFile(const std::string& filename);
     void save();
     kiwix::LibraryPtr getKiwixLibrary() { return mp_library; }
 public slots:

src/mainmenu.cpp

@@ -24,6 +24,8 @@ MainMenu::MainMenu(QWidget *parent) :
     m_fileMenu.ADD_ACTION(BrowseLibraryAction);
     m_fileMenu.ADD_ACTION(OpenFileAction);
     m_fileMenu.ADD_ACTION(OpenRecentAction);
+    m_fileMenu.ADD_ACTION(ExportReadingListAction);
+    m_fileMenu.ADD_ACTION(ImportReadingListAction);
 
     /* TODO See https://github.com/kiwix/kiwix-desktop/issues/77
     m_fileMenu.ADD_ACTION(SavePageAsAction);

src/readinglistbar.cpp

@@ -5,6 +5,10 @@
 #include "zim/item.h"
 
 #include <QListWidgetItem>
+#include <QFileDialog>
+#include <QStandardPaths>
+
+const QString documentsDir = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
 
 ReadingListBar::ReadingListBar(QWidget *parent) :
     QWidget(parent),
@@ -28,7 +32,17 @@ ReadingListBar::ReadingListBar(QWidget *parent) :
 
     setupList();
 
+    auto app = KiwixApp::instance();
+    auto exportAction = app->getAction(KiwixApp::ExportReadingListAction);
+    auto importAction = app->getAction(KiwixApp::ImportReadingListAction);
+    connect(exportAction, &QAction::triggered, this, &ReadingListBar::onExport);
+    connect(importAction, &QAction::triggered, this, &ReadingListBar::onImport);
     ui->label->setText(gt("reading-list-title"));
+
+    QMenu *portMenu = new QMenu(this);
+    portMenu->addAction(exportAction);
+    portMenu->addAction(importAction);
+    ui->readingListMenuButton->setMenu(portMenu);
 }
 
 ReadingListBar::~ReadingListBar()
@@ -104,6 +118,35 @@ void ReadingListBar::onItemActivated(QListWidgetItem* item, Qt::MouseButtons but
     }
 }
 
+void ReadingListBar::onExport()
+{
+    auto app = KiwixApp::instance();
+    auto kiwixLibrary = app->getLibrary()->getKiwixLibrary();
+    auto suggestedFilePath = documentsDir + "/kiwix_readinglist.xml";
+    QString fileName = QFileDialog::getSaveFileName(app->getMainWindow(),
+                                                    gt("save-file-as-window-title"),
+                                                    suggestedFilePath, "(*.xml)");
+    if (fileName.isEmpty())
+        return;
+
+    if (!kiwixLibrary->writeBookmarksToFile(fileName.toStdString()))
+        app->showMessage(gt("export-reading-list-error"), gt("error-title"), QMessageBox::Information);
+}
+
+void ReadingListBar::onImport()
+{
+    auto app = KiwixApp::instance();
+    auto library = app->getLibrary();
+    QString fileName = QFileDialog::getOpenFileName(app->getMainWindow(),
+                                                    gt("open-file"),
+                                                    documentsDir, "(*.xml)");
+    if (fileName.isEmpty())
+        return;
+
+    if (!library->readBookMarksFile(fileName.toStdString()))
+        app->showMessage(gt("import-reading-list-error"), gt("error-title"), QMessageBox::Information);
+}
+
 void ReadingListBar::openUrl(QListWidgetItem* item, bool newTab)
 {
     int index = ui->listWidget->row(item);

src/readinglistbar.h

@@ -22,6 +22,8 @@ public slots:
     void onItemDoubleClicked(QListWidgetItem *item);
     void onItemPressed(QListWidgetItem* item, Qt::MouseButtons buttons);
     void onItemActivated(QListWidgetItem *item, Qt::MouseButtons buttons);
+    void onExport();
+    void onImport();
 private:
     Ui::readinglistbar *ui;
     int clickKind;

src/readinglistbar.ui

@@ -27,16 +27,53 @@
     <number>0</number>
    </property>
    <item>
-    <widget class="QLabel" name="label">
-     <property name="font">
-      <font>
-       <pointsize>16</pointsize>
-      </font>
-     </property>
-     <property name="text">
-      <string>Reading List</string>
-     </property>
-    </widget>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QLabel" name="label">
+       <property name="font">
+        <font>
+         <pointsize>16</pointsize>
+        </font>
+       </property>
+       <property name="text">
+        <string>Reading List</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item>
+      <widget class="QPushButton" name="readingListMenuButton">
+       <property name="text">
+        <string/>
+       </property>
+       <property name="icon">
+        <iconset resource="../resources/kiwix.qrc">
+         <normaloff>:/icons/more-vertical.svg</normaloff>:/icons/more-vertical.svg</iconset>
+       </property>
+       <property name="iconSize">
+        <size>
+         <width>30</width>
+         <height>30</height>
+        </size>
+       </property>
+       <property name="flat">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+    </layout>
    </item>
    <item>
     <widget class="QListWidget" name="listWidget">
@@ -68,6 +105,8 @@
    </item>
   </layout>
  </widget>
- <resources/>
+ <resources>
+  <include location="../resources/kiwix.qrc"/>
+ </resources>
  <connections/>
 </ui>

src/searchbar.cpp

@@ -12,6 +12,9 @@ BookmarkButton::BookmarkButton(QWidget *parent) :
     connect(this, &QToolButton::triggered, this, &BookmarkButton::on_buttonClicked);
     connect(this, &QToolButton::triggered, this, &BookmarkButton::update_display);
     setDefaultAction(KiwixApp::instance()->getAction(KiwixApp::Actions::ToggleAddBookmarkAction));
+
+    auto library = KiwixApp::instance()->getLibrary();
+    connect(library, &Library::bookmarksChanged, this, &BookmarkButton::update_display);
 }
 
 void BookmarkButton::update_display()