X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/58d37b233177765b4908e2ab32413afe9fbd4da6..d34f1d1b466a8163a2274fa6763e1049233f00bb:/src/treeviewsidebarpage.cpp

diff --git a/src/treeviewsidebarpage.cpp b/src/treeviewsidebarpage.cpp
index 82e2a0507..14c877728 100644
--- a/src/treeviewsidebarpage.cpp
+++ b/src/treeviewsidebarpage.cpp
@@ -34,9 +34,13 @@
 #include <QTreeView>
 #include <QBoxLayout>
 #include <QModelIndex>
+#include <QScrollBar>
+#include <QTimer>
 
 TreeViewSidebarPage::TreeViewSidebarPage(QWidget* parent) :
     SidebarPage(parent),
+    m_setLeafVisible(false),
+    m_horizontalPos(0),
     m_dirLister(0),
     m_dolphinModel(0),
     m_proxyModel(0),
@@ -67,6 +71,7 @@ void TreeViewSidebarPage::setUrl(const KUrl& url)
 
     SidebarPage::setUrl(url);
     if (m_dirLister != 0) {
+        m_setLeafVisible = true;
         loadTree(url);
     }
 }
@@ -184,21 +189,13 @@ void TreeViewSidebarPage::expandToLeafDir()
     QModelIndex dirIndex = m_dolphinModel->indexForUrl(parentUrl);
     QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
     m_treeView->setExpanded(proxyIndex, true);
-
-    // assure that m_leafDir gets selected
-    dirIndex = m_dolphinModel->indexForUrl(m_leafDir);
-    proxyIndex = m_proxyModel->mapFromSource(dirIndex);
-    m_treeView->scrollTo(proxyIndex);
-
-    QItemSelectionModel* selModel = m_treeView->selectionModel();
-    selModel->setCurrentIndex(proxyIndex, QItemSelectionModel::Select);
+    selectLeafDirectory();
 }
 
 
 void TreeViewSidebarPage::loadSubTree()
 {
-    QItemSelectionModel* selModel = m_treeView->selectionModel();
-    selModel->clearSelection();
+    m_treeView->selectionModel()->clearSelection();
 
     if (m_leafDir.isParentOf(m_dirLister->url())) {
         // The leaf directory is not a child of the base URL, hence
@@ -208,10 +205,7 @@ void TreeViewSidebarPage::loadSubTree()
 
     const QModelIndex index = m_dolphinModel->indexForUrl(m_leafDir);
     if (index.isValid()) {
-        // the item with the given URL is already part of the model
-        const QModelIndex proxyIndex = m_proxyModel->mapFromSource(index);
-        m_treeView->scrollTo(proxyIndex);
-        selModel->setCurrentIndex(proxyIndex, QItemSelectionModel::Select);
+        selectLeafDirectory();
     } else {
         // Load all sub directories that need to get expanded for making
         // the leaf directory visible. The slot triggerExpanding() will
@@ -220,18 +214,30 @@ void TreeViewSidebarPage::loadSubTree()
     }
 }
 
+void TreeViewSidebarPage::scrollToLeaf()
+{
+    const QModelIndex dirIndex = m_dolphinModel->indexForUrl(m_leafDir);
+    const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
+    if (proxyIndex.isValid()) {
+        m_treeView->scrollTo(proxyIndex);
+    }
+}
+
 void TreeViewSidebarPage::loadTree(const KUrl& url)
 {
     Q_ASSERT(m_dirLister != 0);
     m_leafDir = url;
 
-    // adjust the root of the tree to the base place
-    KFilePlacesModel* placesModel = DolphinSettings::instance().placesModel();
-    KUrl baseUrl = placesModel->url(placesModel->closestItem(url));
-    if (!baseUrl.isValid()) {
-        // it's possible that no closest item is available and hence an
-        // empty URL is returned
+    m_horizontalPos = m_treeView->horizontalScrollBar()->value();
+
+    KUrl baseUrl = url;
+    if (url.isLocalFile()) {
+        // use the root directory as base for local URLs
+        baseUrl = KUrl("file:///");
+    } else {
+        // clear the path for non-local URLs and use it as base
         baseUrl = url;
+        baseUrl.setPath(QString());
     }
 
     if (m_dirLister->url() != baseUrl) {
@@ -242,4 +248,27 @@ void TreeViewSidebarPage::loadTree(const KUrl& url)
     }
 }
 
+void TreeViewSidebarPage::selectLeafDirectory()
+{
+    const QModelIndex dirIndex = m_dolphinModel->indexForUrl(m_leafDir);
+    const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
+    if (!proxyIndex.isValid()) {
+        return;
+    }
+
+    if (m_setLeafVisible) {
+        // Invoke m_treeView->scrollTo(proxyIndex) asynchronously by
+        // scrollToLeaf(). This assures that the scrolling is done after
+        // the horizontal scrollbar gets visible (otherwise the scrollbar
+        // might hide the leaf).
+        QTimer::singleShot(100, this, SLOT(scrollToLeaf()));
+        m_setLeafVisible = false;
+    }
+
+    QItemSelectionModel* selModel = m_treeView->selectionModel();
+    selModel->setCurrentIndex(proxyIndex, QItemSelectionModel::Select);
+
+    m_treeView->horizontalScrollBar()->setValue(m_horizontalPos);
+}
+
 #include "treeviewsidebarpage.moc"