Show button to open knetattach inline with URL nav on remove:// view

This is a backport of b1cadeba939155282a9fadf7d7b025d6529c489e

  From b1cadeba939155282a9fadf7d7b025d6529c489e Mon Sep 17 00:00:00 2001
  From: Nate Graham <[email protected]>
  Date: Tue, 15 Dec 2020 23:03:00 -0700
  Subject: [PATCH] Show button to open knetattach inline with URL nav on
   Remote:// view

  In conjunction with
  https://invent.kde.org/frameworks/kio/-/merge_requests/260,
  the net result is to hide the knetattach launcher in the view, and show
  it inline with Dolphin's URL navigator toolbar when viewing the
  remote:// view, just like how we add an "Empty Trash" button when
  viewing trash://.

The backport ensures that even with frameworks << 5.78 only one network
button is shown.

BUG: 431626

2 files changed, 80 insertions, 1 deletions

diff --git a/src/dolphinnavigatorswidgetaction.cpp b/src/dolphinnavigatorswidgetaction.cpp
index b8c77c69b..b25c60d0c 100644
--- a/src/dolphinnavigatorswidgetaction.cpp
+++ b/src/dolphinnavigatorswidgetaction.cpp
@@ -10,9 +10,13 @@
 #include "trash/dolphintrash.h"
 
 #include <KLocalizedString>
+#include <KNotificationJobUiDelegate>
+#include <KService>
 #include <KXMLGUIFactory>
 #include <KXmlGuiWindow>
 
+#include <KIO/ApplicationLauncherJob>
+
 #include <QApplication>
 #include <QDomDocument>
 #include <QHBoxLayout>
@@ -154,7 +158,13 @@ void DolphinNavigatorsWidgetAction::adjustSpacing()
     }
     int trailingSpacing = (m_globalXOfSplitter + m_splitter->width())
                           - (m_globalXOfPrimary + m_widthOfPrimary);
+#if KIO_VERSION < QT_VERSION_CHECK(5, 78, 0)
     if (trailingSpacing < 0 || emptyTrashButton(Primary)->isVisible()) {
+#else
+    if (trailingSpacing < 0 || emptyTrashButton(Primary)->isVisible()
+                            || networkFolderButton(Primary)->isVisible()
+    ) {
+#endif
         trailingSpacing = 0;
     }
     const int widthLeftForUrlNavigator = m_splitter->widget(0)->width() - leadingSpacing - trailingSpacing;
@@ -181,7 +191,13 @@ void DolphinNavigatorsWidgetAction::adjustSpacing()
 
     trailingSpacing = (m_globalXOfSplitter + m_splitter->width())
                       - (m_globalXOfSecondary + m_widthOfSecondary);
+#if KIO_VERSION < QT_VERSION_CHECK(5, 78, 0)
     if (trailingSpacing < 0 || emptyTrashButton(Secondary)->isVisible()) {
+#else
+    if (trailingSpacing < 0 || emptyTrashButton(Secondary)->isVisible()
+                            || networkFolderButton(Secondary)->isVisible()
+    ) {
+#endif
         trailingSpacing = 0;
     } else {
         const int widthLeftForUrlNavigator2 = m_splitter->widget(1)->width() - trailingSpacing;
@@ -212,6 +228,11 @@ QWidget *DolphinNavigatorsWidgetAction::createNavigatorWidget(Side side) const
     auto emptyTrashButton = newEmptyTrashButton(urlNavigator, navigatorWidget);
     layout->addWidget(emptyTrashButton);
 
+#if !(KIO_VERSION < QT_VERSION_CHECK(5, 78, 0))
+    auto networkFolderButton = newNetworkFolderButton(urlNavigator, navigatorWidget);
+    layout->addWidget(networkFolderButton);
+#endif
+
     connect(urlNavigator, &KUrlNavigator::urlChanged, this, [this]() {
         // We have to wait for DolphinUrlNavigator::sizeHint() to update which
         // happens a little bit later than when urlChanged is emitted.
@@ -249,6 +270,38 @@ QPushButton *DolphinNavigatorsWidgetAction::newEmptyTrashButton(const DolphinUrl
     return emptyTrashButton;
 }
 
+#if !(KIO_VERSION < QT_VERSION_CHECK(5, 78, 0))
+QPushButton *DolphinNavigatorsWidgetAction::networkFolderButton(DolphinNavigatorsWidgetAction::Side side)
+{
+    int sideIndex = (side == Primary ? 0 : 1);
+    if (side == Primary) {
+        return static_cast<QPushButton *>(m_splitter->widget(sideIndex)->layout()->itemAt(3)->widget());
+    }
+    return static_cast<QPushButton *>(m_splitter->widget(sideIndex)->layout()->itemAt(2)->widget());
+}
+
+QPushButton *DolphinNavigatorsWidgetAction::newNetworkFolderButton(const DolphinUrlNavigator *urlNavigator, QWidget *parent) const
+{
+    auto networkFolderButton = new QPushButton(QIcon::fromTheme(QStringLiteral("folder-add")),
+                                        i18nc("@action:button", "Add Network Folder"), parent);
+    networkFolderButton->setFlat(true);
+    connect(networkFolderButton, &QPushButton::clicked,
+            this, [networkFolderButton]() {
+                KService::Ptr service = KService::serviceByDesktopName(QStringLiteral("org.kde.knetattach"));
+                auto *job = new KIO::ApplicationLauncherJob(service, networkFolderButton);
+                auto *delegate = new KNotificationJobUiDelegate;
+                delegate->setAutoErrorHandlingEnabled(true);
+                job->setUiDelegate(delegate);
+                job->start();
+            });
+    networkFolderButton->hide();
+    connect(urlNavigator, &KUrlNavigator::urlChanged, this, [networkFolderButton, urlNavigator]() {
+        networkFolderButton->setVisible(urlNavigator->locationUrl().scheme() == QLatin1String("remote"));
+    });
+    return networkFolderButton;
+}
+#endif
+
 QWidget *DolphinNavigatorsWidgetAction::spacing(Side side, Position position) const
 {
     int sideIndex = (side == Primary ? 0 : 1);
@@ -257,9 +310,17 @@ QWidget *DolphinNavigatorsWidgetAction::spacing(Side side, Position position) co
         return m_splitter->widget(sideIndex)->layout()->itemAt(0)->widget();
     }
     if (side == Primary) {
+#if KIO_VERSION < QT_VERSION_CHECK(5, 78, 0)
         return m_splitter->widget(sideIndex)->layout()->itemAt(3)->widget();
+#else
+        return m_splitter->widget(sideIndex)->layout()->itemAt(4)->widget();
+#endif
     }
+#if KIO_VERSION < QT_VERSION_CHECK(5, 78, 0)
     return m_splitter->widget(sideIndex)->layout()->itemAt(2)->widget();
+#else
+    return m_splitter->widget(sideIndex)->layout()->itemAt(3)->widget();
+#endif
 }
 
 void DolphinNavigatorsWidgetAction::updateText()
diff --git a/src/dolphinnavigatorswidgetaction.h b/src/dolphinnavigatorswidgetaction.h
index bbd8cf127..ce199b3f0 100644
--- a/src/dolphinnavigatorswidgetaction.h
+++ b/src/dolphinnavigatorswidgetaction.h
@@ -10,6 +10,7 @@
 
 #include "dolphinurlnavigator.h"
 
+#include <kio_version.h>
 #include <QSplitter>
 #include <QTimer>
 #include <QWidgetAction>
@@ -30,7 +31,8 @@ class QPushButton;
  *      The secondary side only exists for split view and is created by
  *      createSecondaryUrlNavigator() when necessary.
  * - Each side is a QWidget which I call NavigatorWidget with a QHBoxLayout.
- * - Each NavigatorWidget consists an UrlNavigator, an emptyTrashButton and spacing.
+ * - Each NavigatorWidget consists an UrlNavigator, an emptyTrashButton, a
+ *   networkFolderButton (for frameworks >= 5.78), and spacing.
  * - Only the primary navigatorWidget has leading spacing. Both have trailing spacing.
  *      The spacing is there to align the UrlNavigator with its DolphinViewContainer.
  */
@@ -131,6 +133,22 @@ private:
      */
     QPushButton *newEmptyTrashButton(const DolphinUrlNavigator *urlNavigator, QWidget *parent) const;
 
+#if !(KIO_VERSION < QT_VERSION_CHECK(5, 78, 0))
+    /**
+     * Used to retrieve the networkFolderButtons for the navigatorWidgets on
+     * both sides.
+     */
+    QPushButton *networkFolderButton(Side side);
+
+    /**
+     * Creates a new add "network folder" button.
+     * @param urlNavigator Only when this UrlNavigator shows the remote directory
+     *                     will the button be visible.
+     * @param parent       The object that should be the button's parent.
+     */
+    QPushButton *newNetworkFolderButton(const DolphinUrlNavigator *urlNavigator, QWidget *parent) const;
+#endif
+
     enum Position {
         Leading,
         Trailing