viewsdialog:show/hide views context menu actions

--based on a view is selected or not the relevant
actions are shown in the context menu

app/settings/settingsdialog/layoutscontroller.cpp

@@ -184,9 +184,7 @@ void Layouts::setOriginalInMultipleMode(const bool &inmultiple)
 
 bool Layouts::hasSelectedLayout() const
 {
-    int selectedRow = m_view->currentIndex().row();
-
-    return (selectedRow >= 0);
+    return m_view->selectionModel()->hasSelection();
 }
 
 bool Layouts::isSelectedLayoutOriginal() const

app/settings/viewsdialog/CMakeLists.txt

@@ -4,6 +4,7 @@ set(lattedock-app_SRCS
     ${CMAKE_CURRENT_SOURCE_DIR}/viewsdialog.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/viewshandler.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/viewsmodel.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/viewstableview.cpp
     PARENT_SCOPE
 )
 

app/settings/viewsdialog/viewscontroller.cpp

@@ -25,6 +25,7 @@
 #include "viewsdialog.h"
 #include "viewshandler.h"
 #include "viewsmodel.h"
+#include "viewstableview.h"
 #include "delegates/namedelegate.h"
 #include "delegates/singleoptiondelegate.h"
 #include "delegates/singletextdelegate.h"
@@ -107,8 +108,6 @@ void Views::init()
 
     applyColumnWidths();
 
-    m_view->setContextMenuPolicy(Qt::ActionsContextMenu);
-
     m_cutAction = new QAction(QIcon::fromTheme("edit-cut"), i18n("Cut"), m_view);
     m_cutAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_X));
 
@@ -127,6 +126,7 @@ void Views::init()
     m_view->addAction(m_pasteAction);
     m_view->addAction(m_duplicateAction);
 
+    connect(m_view, &View::ViewsTableView::selectionsChanged, this, &Views::onSelectionsChanged);
     connect(m_view, &QObject::destroyed, this, &Views::storeColumnWidths);
 
     connect(m_view->horizontalHeader(), &QObject::destroyed, this, [&]() {
@@ -147,9 +147,7 @@ bool Views::hasChangedData() const
 
 bool Views::hasSelectedView() const
 {
-    int selectedRow = m_view->currentIndex().row();
-
-    return (selectedRow >= 0);
+    return m_view->selectionModel()->hasSelection();
 }
 
 int Views::rowForId(QString id) const
@@ -244,6 +242,16 @@ void Views::onCurrentLayoutChanged()
     m_model->setOriginalData(layout.views);
 }
 
+void Views::onSelectionsChanged()
+{
+    bool hasselectedview = hasSelectedView();
+
+    m_cutAction->setVisible(hasselectedview);
+    m_copyAction->setVisible(hasselectedview);
+    m_duplicateAction->setVisible(hasselectedview);
+    m_pasteAction->setVisible(!hasselectedview);
+}
+
 int Views::viewsForRemovalCount() const
 {
     if (!hasChangedData()) {

app/settings/viewsdialog/viewscontroller.h

@@ -31,6 +31,7 @@
 // Qt
 #include <QAbstractItemModel>
 #include <QHash>
+#include <QItemSelection>
 #include <QSortFilterProxyModel>
 #include <QTableView>
 
@@ -43,6 +44,9 @@ namespace Settings {
 namespace Handler {
 class ViewsHandler;
 }
+namespace View {
+class ViewsTableView;
+}
 }
 }
 
@@ -100,11 +104,12 @@ private slots:
     void applyColumnWidths();
 
     void onCurrentLayoutChanged();
+    void onSelectionsChanged();
 
 private:
     Settings::Handler::ViewsHandler *m_handler{nullptr};
 
-    QTableView *m_view{nullptr};
+    Settings::View::ViewsTableView *m_view{nullptr};
 
     //! layoutsView ui settings
     int m_viewSortColumn{Model::Views::SCREENCOLUMN};

app/settings/viewsdialog/viewsdialog.ui

@@ -87,7 +87,10 @@
           <number>6</number>
          </property>
          <item row="1" column="0">
-          <widget class="QTableView" name="viewsTable">
+          <widget class="Latte::Settings::View::ViewsTableView" name="viewsTable">
+           <property name="contextMenuPolicy">
+            <enum>Qt::ActionsContextMenu</enum>
+           </property>
            <property name="alternatingRowColors">
             <bool>true</bool>
            </property>
@@ -127,7 +130,8 @@
               <string>Duplicate</string>
              </property>
              <property name="icon">
-              <iconset theme="edit-copy"/>
+              <iconset theme="edit-copy">
+               <normaloff>.</normaloff>.</iconset>
              </property>
             </widget>
            </item>
@@ -222,6 +226,11 @@
    <extends>QComboBox</extends>
    <header>settings/generic/layoutscombobox.h</header>
   </customwidget>
+  <customwidget>
+   <class>Latte::Settings::View::ViewsTableView</class>
+   <extends>QTableView</extends>
+   <header>settings/viewsdialog/viewstableview.h</header>
+  </customwidget>
  </customwidgets>
  <resources/>
  <connections>

app/settings/viewsdialog/viewstableview.cpp

@@ -0,0 +1,56 @@
+/*
+*  Copyright 2020 Michail Vourlakos <mvourlakos@gmail.com>
+*
+*  This file is part of Latte-Dock
+*
+*  Latte-Dock is free software; you can redistribute it and/or
+*  modify it under the terms of the GNU General Public License as
+*  published by the Free Software Foundation; either version 2 of
+*  the License, or (at your option) any later version.
+*
+*  Latte-Dock is distributed in the hope that it will be useful,
+*  but WITHOUT ANY WARRANTY; without even the implied warranty of
+*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*  GNU General Public License for more details.
+*
+*  You should have received a copy of the GNU General Public License
+*  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "viewstableview.h"
+
+//! Qt
+#include <QDebug>
+#include <QModelIndex>
+
+
+namespace Latte {
+namespace Settings {
+namespace View {
+
+ViewsTableView::ViewsTableView(QWidget *parent)
+    : QTableView(parent)
+{
+}
+
+void ViewsTableView::mousePressEvent(QMouseEvent *event)
+{
+    QModelIndex eventIndex = indexAt(event->pos());
+
+    if (!eventIndex.isValid()) {
+        clearSelection();
+    }
+
+    QTableView::mousePressEvent(event);
+}
+
+void ViewsTableView::selectionChanged(const QItemSelection &selected, const QItemSelection &deselected)
+{
+    QAbstractItemView::selectionChanged(selected, deselected);
+    emit selectionsChanged();
+}
+
+}
+}
+}
+

app/settings/viewsdialog/viewstableview.h

@@ -0,0 +1,50 @@
+/*
+*  Copyright 2021 Michail Vourlakos <mvourlakos@gmail.com>
+*
+*  This file is part of Latte-Dock
+*
+*  Latte-Dock is free software; you can redistribute it and/or
+*  modify it under the terms of the GNU General Public License as
+*  published by the Free Software Foundation; either version 2 of
+*  the License, or (at your option) any later version.
+*
+*  Latte-Dock is distributed in the hope that it will be useful,
+*  but WITHOUT ANY WARRANTY; without even the implied warranty of
+*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*  GNU General Public License for more details.
+*
+*  You should have received a copy of the GNU General Public License
+*  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef VIEWSTABLEVIEW_H
+#define VIEWSTABLEVIEW_H
+
+// Qt
+#include <QTableView>
+#include <QMouseEvent>
+
+namespace Latte {
+namespace Settings {
+namespace View {
+
+class ViewsTableView : public QTableView
+{
+    Q_OBJECT
+public:
+    ViewsTableView(QWidget *parent = nullptr);
+
+signals:
+    void selectionsChanged();
+
+protected:
+    void mousePressEvent(QMouseEvent *event) override;
+    void selectionChanged(const QItemSelection &selected, const QItemSelection &deselected) override;
+
+
+};
+
+}
+}
+}
+#endif