On middle-click, open file with the second application for the file mime

FEATURE: 390631

4 files changed, 37 insertions, 1 deletions

diff --git a/src/dolphinviewcontainer.cpp b/src/dolphinviewcontainer.cpp
index 03e49985c..ffd0d9b5e 100644
--- a/src/dolphinviewcontainer.cpp
+++ b/src/dolphinviewcontainer.cpp
@@ -31,6 +31,7 @@
 #else
 #include <KIO/JobUiDelegate>
 #endif
+#include <KApplicationTrader>
 #include <KIO/OpenUrlJob>
 #include <KLocalizedString>
 #include <KMessageWidget>
@@ -135,6 +136,7 @@ DolphinViewContainer::DolphinViewContainer(const QUrl &url, QWidget *parent)
     connect(m_view, &DolphinView::writeStateChanged, this, &DolphinViewContainer::writeStateChanged);
     connect(m_view, &DolphinView::requestItemInfo, this, &DolphinViewContainer::showItemInfo);
     connect(m_view, &DolphinView::itemActivated, this, &DolphinViewContainer::slotItemActivated);
+    connect(m_view, &DolphinView::fileMiddleClickActivated, this, &DolphinViewContainer::slotfileMiddleClickActivated);
     connect(m_view, &DolphinView::itemsActivated, this, &DolphinViewContainer::slotItemsActivated);
     connect(m_view, &DolphinView::redirection, this, &DolphinViewContainer::redirect);
     connect(m_view, &DolphinView::directoryLoadingStarted, this, &DolphinViewContainer::slotDirectoryLoadingStarted);
@@ -739,6 +741,26 @@ void DolphinViewContainer::slotItemActivated(const KFileItem &item)
     job->start();
 }
 
+void DolphinViewContainer::slotfileMiddleClickActivated(const KFileItem &item)
+{
+    KService::List services = KApplicationTrader::queryByMimeType(item.mimetype());
+
+    if (services.length() >= 2) {
+        auto service = services.at(1);
+
+        KIO::ApplicationLauncherJob *job = new KIO::ApplicationLauncherJob(service, this);
+        job->setUrls({item.url()});
+
+#if KIO_VERSION >= QT_VERSION_CHECK(5, 98, 0)
+        job->setUiDelegate(KIO::createDefaultJobUiDelegate(KJobUiDelegate::AutoHandlingEnabled, this));
+#else
+        job->setUiDelegate(new KIO::JobUiDelegate(KJobUiDelegate::AutoHandlingEnabled, this));
+#endif
+        connect(job, &KIO::OpenUrlJob::finished, this, &DolphinViewContainer::slotOpenUrlFinished);
+        job->start();
+    }
+}
+
 void DolphinViewContainer::slotItemsActivated(const KFileItemList &items)
 {
     Q_ASSERT(items.count() >= 2);
diff --git a/src/dolphinviewcontainer.h b/src/dolphinviewcontainer.h
index f9c62296e..0c8b184fe 100644
--- a/src/dolphinviewcontainer.h
+++ b/src/dolphinviewcontainer.h
@@ -327,6 +327,11 @@ private Q_SLOTS:
     void slotItemsActivated(const KFileItemList &items);
 
     /**
+     * Handles middle click of file. It opens the file passed using the second application associated with the file's mimetype.
+     */
+    void slotfileMiddleClickActivated(const KFileItem &item);
+
+    /**
      * Shows the information for the item \a item inside the statusbar. If the
      * item is null, the default statusbar information is shown.
      */
diff --git a/src/views/dolphinview.cpp b/src/views/dolphinview.cpp
index 13c8b4df2..e0d01d1e8 100644
--- a/src/views/dolphinview.cpp
+++ b/src/views/dolphinview.cpp
@@ -1136,6 +1136,7 @@ void DolphinView::slotItemMiddleClicked(int index)
     const KFileItem &item = m_model->fileItem(index);
     const QUrl &url = openItemAsFolderUrl(item);
     const auto modifiers = QGuiApplication::keyboardModifiers();
+    const QString &archiveProtocol = KProtocolManager::protocolForArchiveMimetype(item.mimetype());
     if (!url.isEmpty()) {
         // keep in sync with KUrlNavigator::slotNavigatorButtonClicked
         if (modifiers & Qt::ShiftModifier) {
@@ -1143,13 +1144,15 @@ void DolphinView::slotItemMiddleClicked(int index)
         } else {
             Q_EMIT tabRequested(url);
         }
-    } else if (isTabsForFilesEnabled()) {
+    } else if (!archiveProtocol.isEmpty() && isTabsForFilesEnabled()) {
         // keep in sync with KUrlNavigator::slotNavigatorButtonClicked
         if (modifiers & Qt::ShiftModifier) {
             Q_EMIT activeTabRequested(item.url());
         } else {
             Q_EMIT tabRequested(item.url());
         }
+    } else {
+        Q_EMIT fileMiddleClickActivated(item);
     }
 }
 
diff --git a/src/views/dolphinview.h b/src/views/dolphinview.h
index 21ca49c24..f851724c2 100644
--- a/src/views/dolphinview.h
+++ b/src/views/dolphinview.h
@@ -453,6 +453,12 @@ Q_SIGNALS:
     void itemActivated(const KFileItem &item);
 
     /**
+     * Is emitted when clicking on a file with the middle mouse button.
+     * @note: This will not be emitted for folders or file archives that will/can be opened like folders.
+     */
+    void fileMiddleClickActivated(const KFileItem &item);
+
+    /**
      * Is emitted when multiple items have been activated by e. g.
      * context menu open with.
      */