Fix enable/disable ok button

plugins/messageviewerconfigureplugins/foldersettings/folderconfiguretreewidget.cpp

@@ -49,23 +49,45 @@ FolderConfigureTreeWidget::FolderConfigureTreeWidget(QWidget *parent)
     buttonLayout->setObjectName(QStringLiteral("buttonLayout"));
     mainLayout->addLayout(buttonLayout);
 
-    auto selectFolder = new QPushButton(i18n("Select"), this);
-    selectFolder->setObjectName(QStringLiteral("selectFolder"));
-    buttonLayout->addWidget(selectFolder);
-    connect(selectFolder, &QPushButton::clicked, this, [this]() {
+    mSelectFolder = new QPushButton(i18n("Select"), this);
+    mSelectFolder->setObjectName(QStringLiteral("selectFolder"));
+    buttonLayout->addWidget(mSelectFolder);
+    mSelectFolder->setEnabled(false);
+    connect(mSelectFolder, &QPushButton::clicked, this, [this]() {
         changeFolderSelection(true);
     });
 
-    auto unSelectFolder = new QPushButton(i18n("Unselect"), this);
-    unSelectFolder->setObjectName(QStringLiteral("unSelectFolder"));
-    buttonLayout->addWidget(unSelectFolder);
-    connect(unSelectFolder, &QPushButton::clicked, this, [this]() {
+    mUnSelectFolder = new QPushButton(i18n("Unselect"), this);
+    mUnSelectFolder->setObjectName(QStringLiteral("unSelectFolder"));
+    mUnSelectFolder->setEnabled(false);
+    buttonLayout->addWidget(mUnSelectFolder);
+    connect(mUnSelectFolder, &QPushButton::clicked, this, [this]() {
         changeFolderSelection(false);
     });
+    connect(checkable->selectionModel(), &QItemSelectionModel::selectionChanged, this, &FolderConfigureTreeWidget::slotSelectionChanged);
 }
 
 FolderConfigureTreeWidget::~FolderConfigureTreeWidget() = default;
 
+void FolderConfigureTreeWidget::slotSelectionChanged(const QItemSelection &selected, const QItemSelection &deselected)
+{
+    qDebug() << "ssssssssssss";
+    Q_UNUSED(deselected);
+    const auto selectedModelItems{selected.indexes()};
+    bool checkedFolder = false;
+    bool uncheckedFolder = false;
+    for (const QModelIndex &selectedIndex : selectedModelItems) {
+        bool b = mFolderSettingFilterProxyModel->data(selectedIndex, Qt::CheckStateRole).toBool();
+        if (b) {
+            checkedFolder = true;
+        } else {
+            uncheckedFolder = true;
+        }
+    }
+    mSelectFolder->setEnabled(checkedFolder);
+    mUnSelectFolder->setEnabled(uncheckedFolder);
+}
+
 void FolderConfigureTreeWidget::changeFolderSelection(bool select)
 {
     const QModelIndexList indexes = mFolderTreeWidget->folderTreeView()->selectionModel()->selectedIndexes();

plugins/messageviewerconfigureplugins/foldersettings/folderconfiguretreewidget.h

@@ -14,6 +14,8 @@ namespace MailCommon
 {
 class FolderTreeWidget;
 }
+class QItemSelection;
+class QPushButton;
 class LIBFOLDERCONFIGURESETTINGS_TESTS_EXPORT FolderConfigureTreeWidget : public QWidget
 {
     Q_OBJECT
@@ -24,7 +26,10 @@ public:
 
 private:
     void changeFolderSelection(bool select);
+    void slotSelectionChanged(const QItemSelection &selected, const QItemSelection &deselected);
     FolderSettingFilterProxyModel *const mFolderSettingFilterProxyModel;
     MailCommon::FolderTreeWidget *const mFolderTreeWidget;
+    QPushButton *mSelectFolder = nullptr;
+    QPushButton *mUnSelectFolder = nullptr;
 };