Introduce Select All Button to MultiZim

resources/css/style.css

@@ -121,6 +121,32 @@ ZimItemWidget QRadioButton::indicator:checked {
     image: url(:/icons/tick.svg);
 }
 
+#selectAllButton {
+    background-color: white;
+    font-size: 16px;
+    line-height: 24px;
+    font-weight: 500;
+    padding: 5px 10px 10px;
+    outline: none;
+}
+
+#selectAllButton::indicator {
+    width: 24px;
+    height: 24px;
+}
+
+#selectAllButton::indicator:focus {
+    background-color: #D9E9FF;
+}
+
+#selectAllButton::indicator:unchecked {
+    image: url(:/icons/checkbox.svg);
+}
+
+#selectAllButton::indicator:checked {
+    image: url(:/icons/checkbox-active.svg);
+}
+
 TopWidget QToolButton:pressed,
 TopWidget QToolButton::hover {
     border: 1px solid #3366CC;

resources/i18n/en.json

@@ -173,5 +173,6 @@
     "scroll-next-tab": "Scroll to next tab",
     "scroll-previous-tab": "Scroll to previous tab",
     "kiwix-search": "Kiwix search",
-    "search-options": "Search Options"
+    "search-options": "Search Options",
+    "select-all": "Select all"
 }

resources/i18n/qqq.json

@@ -181,5 +181,6 @@
 	"scroll-next-tab": "Represents the action of scrolling to the next tab of the current tab which toward the end of the tab bar.",
 	"scroll-previous-tab": "Represents the action of scrolling to the previous tab of the current tab which toward the start of the tab bar.",
 	"kiwix-search": "Title text for a list of search results, which notes to the user those are from Kiwix's Search Engine",
-	"search-options": "The term for a collection of additional search filtering options to help users narrow down search results."
+	"search-options": "The term for a collection of additional search filtering options to help users narrow down search results.",
+	"select-all": "Represents the action of selecting all items in a collection."
 }

src/multizimbutton.cpp

@@ -12,16 +12,23 @@ QString getElidedText(const QFont& font, int length, const QString& text);
 MultiZimButton::MultiZimButton(QWidget *parent) :
     QToolButton(parent), 
     mp_buttonList(new QListWidget),
-    mp_radioButtonGroup(new QButtonGroup(this))
+    mp_radioButtonGroup(new QButtonGroup(this)),
+    mp_selectAllButton(new QCheckBox(gt("select-all"), this))
 {
     setMenu(new QMenu(this));
     setPopupMode(QToolButton::InstantPopup);
     setDefaultAction(KiwixApp::instance()->getAction(KiwixApp::OpenMultiZimAction));
     connect(this, &QToolButton::triggered, this, &MultiZimButton::showMenu);
 
-    const auto popupAction = new QWidgetAction(menu());
-    popupAction->setDefaultWidget(mp_buttonList);
-    menu()->addAction(popupAction);
+    mp_selectAllButton->setObjectName("selectAllButton");
+    const auto align = KiwixApp::isRightToLeft() ? Qt::LeftToRight : Qt::RightToLeft;
+    mp_selectAllButton->setLayoutDirection(align);
+
+    const auto buttonListAction = new QWidgetAction(menu());
+    const auto selectAllAction = new QWidgetAction(menu());
+    buttonListAction->setDefaultWidget(mp_buttonList);
+    selectAllAction->setDefaultWidget(mp_selectAllButton);
+    menu()->addActions({buttonListAction, selectAllAction});
 
     connect(mp_buttonList, &QListWidget::currentRowChanged, this, [=](int row){
         if (const auto widget = getZimWidget(row))

src/multizimbutton.h

@@ -8,6 +8,7 @@ class QButtonGroup;
 class QListWidgetItem;
 class QRadioButton;
 class QLabel;
+class QCheckBox;
 
 class ZimItemWidget : public QWidget {
     Q_OBJECT
@@ -36,6 +37,7 @@ public slots:
 private:
     QListWidget* mp_buttonList;
     QButtonGroup* mp_radioButtonGroup;
+    QCheckBox* mp_selectAllButton;
 
     ZimItemWidget* getZimWidget(int row) const;
     void setItemZimWidget(QListWidgetItem* item, const QString& title, const QIcon& icon);