]> cloud.milkyroute.net Git - dolphin.git/blobdiff - src/treeviewsidebarpage.cpp
Forwardport 773570:
[dolphin.git] / src / treeviewsidebarpage.cpp
index eac1e6cf43273d94f7b7742d464b04e90748e442..14c8777280d15d775b97ce2dd8291a7642e7e88a 100644 (file)
@@ -20,7 +20,6 @@
 #include "treeviewsidebarpage.h"
 
 #include "dolphinmodel.h"
-#include "dolphinmainwindow.h"
 #include "dolphinsortfilterproxymodel.h"
 #include "dolphinview.h"
 #include "dolphinsettings.h"
 #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),
@@ -48,15 +51,16 @@ TreeViewSidebarPage::TreeViewSidebarPage(QWidget* parent) :
 
 TreeViewSidebarPage::~TreeViewSidebarPage()
 {
-    delete m_dirLister;
-    m_dirLister = 0;
+    delete m_proxyModel;
+    m_proxyModel = 0;
+    delete m_dolphinModel;
+    m_dolphinModel = 0;
+    m_dirLister = 0; // deleted by m_dolphinModel
 }
 
 QSize TreeViewSidebarPage::sizeHint() const
 {
-    QSize size = SidebarPage::sizeHint();
-    size.setWidth(200);
-    return size;
+    return QSize(200, 400);
 }
 
 void TreeViewSidebarPage::setUrl(const KUrl& url)
@@ -67,6 +71,7 @@ void TreeViewSidebarPage::setUrl(const KUrl& url)
 
     SidebarPage::setUrl(url);
     if (m_dirLister != 0) {
+        m_setLeafVisible = true;
         loadTree(url);
     }
 }
@@ -89,12 +94,15 @@ void TreeViewSidebarPage::showEvent(QShowEvent* event)
         m_dirLister->setDelayedMimeTypes(true);
         m_dirLister->setAutoErrorHandlingEnabled(false, this);
 
+        connect(m_dirLister, SIGNAL(completed()),
+                this, SLOT(triggerLoadSubTree()));
+
         Q_ASSERT(m_dolphinModel == 0);
         m_dolphinModel = new DolphinModel(this);
         m_dolphinModel->setDirLister(m_dirLister);
         m_dolphinModel->setDropsAllowed(DolphinModel::DropOnDirectory);
         connect(m_dolphinModel, SIGNAL(expand(const QModelIndex&)),
-                this, SLOT(triggerExpanding(const QModelIndex&)));
+                this, SLOT(triggerExpanding()));
 
         Q_ASSERT(m_proxyModel == 0);
         m_proxyModel = new DolphinSortFilterProxyModel(this);
@@ -133,39 +141,11 @@ void TreeViewSidebarPage::contextMenuEvent(QContextMenuEvent* event)
     const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
     KFileItem item = m_dolphinModel->itemForIndex(dolphinModelIndex);
 
-    emit changeSelection(QList<KFileItem>());
+    emit changeSelection(KFileItemList());
     TreeViewContextMenu contextMenu(this, item);
     contextMenu.open();
 }
 
-void TreeViewSidebarPage::expandSelectionParent()
-{
-    disconnect(m_dirLister, SIGNAL(completed()),
-               this, SLOT(expandSelectionParent()));
-
-    // expand the parent folder of the selected item
-    KUrl parentUrl = url().upUrl();
-    if (!m_dirLister->url().isParentOf(parentUrl)) {
-        return;
-    }
-
-    QModelIndex index = m_dolphinModel->indexForUrl(parentUrl);
-    if (index.isValid()) {
-        QModelIndex proxyIndex = m_proxyModel->mapFromSource(index);
-        m_treeView->setExpanded(proxyIndex, true);
-
-        // select the item and assure that the item is visible
-        index = m_dolphinModel->indexForUrl(url());
-        if (index.isValid()) {
-            proxyIndex = m_proxyModel->mapFromSource(index);
-            m_treeView->scrollTo(proxyIndex);
-
-            QItemSelectionModel* selModel = m_treeView->selectionModel();
-            selModel->setCurrentIndex(proxyIndex, QItemSelectionModel::Select);
-        }
-    }
-}
-
 void TreeViewSidebarPage::updateActiveView(const QModelIndex& index)
 {
     const QModelIndex dirIndex = m_proxyModel->mapToSource(index);
@@ -188,14 +168,20 @@ void TreeViewSidebarPage::dropUrls(const KUrl::List& urls,
     }
 }
 
-void TreeViewSidebarPage::triggerExpanding(const QModelIndex& index)
+void TreeViewSidebarPage::triggerExpanding()
 {
-    Q_UNUSED(index);
     // the expanding of the folders may not be done in the context
     // of this slot
     QMetaObject::invokeMethod(this, "expandToLeafDir", Qt::QueuedConnection);
 }
 
+void TreeViewSidebarPage::triggerLoadSubTree()
+{
+    // the loading of the sub tree may not be done in the context
+    // of this slot
+    QMetaObject::invokeMethod(this, "loadSubTree", Qt::QueuedConnection);
+}
+
 void TreeViewSidebarPage::expandToLeafDir()
 {
     // expand all directories until the parent directory of m_leafDir
@@ -203,23 +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()
 {
-    disconnect(m_dirLister, SIGNAL(completed()),
-               this, SLOT(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
@@ -229,10 +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
@@ -241,28 +214,61 @@ 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());
     }
 
-    connect(m_dirLister, SIGNAL(completed()),
-            this, SLOT(loadSubTree()));
     if (m_dirLister->url() != baseUrl) {
         m_dirLister->stop();
-        m_dirLister->openUrl(baseUrl);
+        m_dirLister->openUrl(baseUrl, KDirLister::Reload);
     } else {
         loadSubTree();
     }
 }
 
+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"