X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/aad46935fa1c5d898920834511026c6f2ab8f64a..846b21edf57e7aeb83e84ee68e9f61c5981fbacd:/src/treeviewsidebarpage.cpp diff --git a/src/treeviewsidebarpage.cpp b/src/treeviewsidebarpage.cpp index 4c97f3833..14c877728 100644 --- a/src/treeviewsidebarpage.cpp +++ b/src/treeviewsidebarpage.cpp @@ -19,64 +19,48 @@ #include "treeviewsidebarpage.h" -#include "dolphinmainwindow.h" +#include "dolphinmodel.h" #include "dolphinsortfilterproxymodel.h" #include "dolphinview.h" +#include "dolphinsettings.h" #include "sidebartreeview.h" #include "treeviewcontextmenu.h" #include #include -#include #include -#include -#include +#include #include -#include -#include "dolphinsettings.h" +#include +#include +#include +#include TreeViewSidebarPage::TreeViewSidebarPage(QWidget* parent) : SidebarPage(parent), + m_setLeafVisible(false), + m_horizontalPos(0), m_dirLister(0), - m_dirModel(0), + m_dolphinModel(0), m_proxyModel(0), - m_treeView(0) + m_treeView(0), + m_leafDir() { - m_dirLister = new KDirLister(); - m_dirLister->setDirOnlyMode(true); - m_dirLister->setAutoUpdate(true); - m_dirLister->setMainWindow(this); - m_dirLister->setDelayedMimeTypes(true); - m_dirLister->setAutoErrorHandlingEnabled(false, this); - - m_dirModel = new KDirModel(); - m_dirModel->setDirLister(m_dirLister); - m_dirModel->setDropsAllowed(KDirModel::DropOnDirectory); - - m_proxyModel = new DolphinSortFilterProxyModel(this); - m_proxyModel->setSourceModel(m_dirModel); - - m_treeView = new SidebarTreeView(this); - m_treeView->setModel(m_proxyModel); - - m_proxyModel->setSorting(DolphinView::SortByName); - m_proxyModel->setSortOrder(Qt::AscendingOrder); - - connect(m_treeView, SIGNAL(clicked(const QModelIndex&)), - this, SLOT(updateActiveView(const QModelIndex&))); - connect(m_treeView, SIGNAL(urlsDropped(const KUrl::List&, const QModelIndex&)), - this, SLOT(dropUrls(const KUrl::List&, const QModelIndex&))); - - QVBoxLayout* layout = new QVBoxLayout(this); - layout->setMargin(0); - layout->addWidget(m_treeView); } 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 +{ + return QSize(200, 400); } void TreeViewSidebarPage::setUrl(const KUrl& url) @@ -86,18 +70,62 @@ void TreeViewSidebarPage::setUrl(const KUrl& url) } SidebarPage::setUrl(url); - // TODO: it makes only sense to load the tree if the TreeViewSidebarPage - // is visible, but currently an assertion is triggered in KDirModel when hiding - // the tree view, changing to a complete different hierarchy and showing it again. - //if (isVisible()) { + if (m_dirLister != 0) { + m_setLeafVisible = true; loadTree(url); - //} + } } void TreeViewSidebarPage::showEvent(QShowEvent* event) { - SidebarPage::showEvent(event); + if (event->spontaneous()) { + SidebarPage::showEvent(event); + return; + } + + if (m_dirLister == 0) { + // Postpone the creating of the dir lister to the first show event. + // This assures that no performance and memory overhead is given when the TreeView is not + // used at all (see TreeViewSidebarPage::setUrl()). + m_dirLister = new KDirLister(); + m_dirLister->setDirOnlyMode(true); + m_dirLister->setAutoUpdate(true); + m_dirLister->setMainWindow(this); + 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())); + + Q_ASSERT(m_proxyModel == 0); + m_proxyModel = new DolphinSortFilterProxyModel(this); + m_proxyModel->setSourceModel(m_dolphinModel); + + Q_ASSERT(m_treeView == 0); + m_treeView = new SidebarTreeView(this); + m_treeView->setModel(m_proxyModel); + m_proxyModel->setSorting(DolphinView::SortByName); + m_proxyModel->setSortOrder(Qt::AscendingOrder); + + connect(m_treeView, SIGNAL(clicked(const QModelIndex&)), + this, SLOT(updateActiveView(const QModelIndex&))); + connect(m_treeView, SIGNAL(urlsDropped(const KUrl::List&, const QModelIndex&)), + this, SLOT(dropUrls(const KUrl::List&, const QModelIndex&))); + + QVBoxLayout* layout = new QVBoxLayout(this); + layout->setMargin(0); + layout->addWidget(m_treeView); + } + loadTree(url()); + SidebarPage::showEvent(event); } void TreeViewSidebarPage::contextMenuEvent(QContextMenuEvent* event) @@ -110,104 +138,137 @@ void TreeViewSidebarPage::contextMenuEvent(QContextMenuEvent* event) return; } - const QModelIndex dirModelIndex = m_proxyModel->mapToSource(index); - KFileItem* item = m_dirModel->itemForIndex(dirModelIndex); + const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index); + KFileItem item = m_dolphinModel->itemForIndex(dolphinModelIndex); emit changeSelection(KFileItemList()); TreeViewContextMenu contextMenu(this, item); contextMenu.open(); } -void TreeViewSidebarPage::expandSelectionParent() +void TreeViewSidebarPage::updateActiveView(const QModelIndex& index) { - 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; + const QModelIndex dirIndex = m_proxyModel->mapToSource(index); + const KFileItem item = m_dolphinModel->itemForIndex(dirIndex); + if (!item.isNull()) { + emit changeUrl(item.url()); } +} - QModelIndex index = m_dirModel->indexForUrl(parentUrl); +void TreeViewSidebarPage::dropUrls(const KUrl::List& urls, + const QModelIndex& index) +{ 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_dirModel->indexForUrl(url()); - if (index.isValid()) { - proxyIndex = m_proxyModel->mapFromSource(index); - m_treeView->scrollTo(proxyIndex); - - QItemSelectionModel* selModel = m_treeView->selectionModel(); - selModel->setCurrentIndex(proxyIndex, QItemSelectionModel::Select); + const QModelIndex dirIndex = m_proxyModel->mapToSource(index); + KFileItem item = m_dolphinModel->itemForIndex(dirIndex); + Q_ASSERT(!item.isNull()); + if (item.isDir()) { + emit urlsDropped(urls, item.url()); } } } -void TreeViewSidebarPage::updateActiveView(const QModelIndex& index) +void TreeViewSidebarPage::triggerExpanding() { - const QModelIndex dirIndex = m_proxyModel->mapToSource(index); - const KFileItem* item = m_dirModel->itemForIndex(dirIndex); - if (item != 0) { - const KUrl& url = item->url(); - emit changeUrl(url); - } + // the expanding of the folders may not be done in the context + // of this slot + QMetaObject::invokeMethod(this, "expandToLeafDir", Qt::QueuedConnection); } -void TreeViewSidebarPage::dropUrls(const KUrl::List& urls, - const QModelIndex& index) +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 + const KUrl parentUrl = m_leafDir.upUrl(); + QModelIndex dirIndex = m_dolphinModel->indexForUrl(parentUrl); + QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex); + m_treeView->setExpanded(proxyIndex, true); + selectLeafDirectory(); +} + + +void TreeViewSidebarPage::loadSubTree() +{ + m_treeView->selectionModel()->clearSelection(); + + if (m_leafDir.isParentOf(m_dirLister->url())) { + // The leaf directory is not a child of the base URL, hence + // no sub directory must be loaded or selected. + return; + } + + const QModelIndex index = m_dolphinModel->indexForUrl(m_leafDir); if (index.isValid()) { - const QModelIndex dirIndex = m_proxyModel->mapToSource(index); - KFileItem* item = m_dirModel->itemForIndex(dirIndex); - Q_ASSERT(item != 0); - if (item->isDir()) { - emit urlsDropped(urls, item->url()); - } + selectLeafDirectory(); + } else { + // Load all sub directories that need to get expanded for making + // the leaf directory visible. The slot triggerExpanding() will + // get invoked if the expanding has been finished. + m_dolphinModel->expandToUrl(m_leafDir); + } +} + +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) { - // adjust the root of the tree to the base bookmark - 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 + Q_ASSERT(m_dirLister != 0); + m_leafDir = url; + + 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) { m_dirLister->stop(); - m_dirLister->openUrl(baseUrl); + m_dirLister->openUrl(baseUrl, KDirLister::Reload); + } else { + loadSubTree(); } +} - // select the folder which contains the given URL - QItemSelectionModel* selModel = m_treeView->selectionModel(); - selModel->clearSelection(); - - const QModelIndex index = m_dirModel->indexForUrl(url); - 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); - } else { - // The item with the given URL is not loaded by the model yet. Iterate - // backward to the base URL and trigger the loading of the items for - // each hierarchy level. - connect(m_dirLister, SIGNAL(completed()), - this, SLOT(expandSelectionParent())); +void TreeViewSidebarPage::selectLeafDirectory() +{ + const QModelIndex dirIndex = m_dolphinModel->indexForUrl(m_leafDir); + const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex); + if (!proxyIndex.isValid()) { + return; + } - KUrl parentUrl = url.upUrl(); - while (!parentUrl.isParentOf(baseUrl)) { - m_dirLister->openUrl(parentUrl, true, false); - parentUrl = parentUrl.upUrl(); - } + 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"