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https://invent.kde.org/system/dolphin
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Reimplement name-filtering
The filtering of items has not been implemented yet in the KFileItemModel of the new view-engine. The patch brings back this functionality again, but some minor issues are open: - When filtering trees expanded directories should only get hidden if no child is visible - Regular expressions are not supported yet (they have not been supported in Dolphin 1.x but it is now quite simple to implement). - When filtering previews and removing the filter it might be possible that the preview is not shown (is most probably an an already existing bug in KFileItemModelRolesUpdater). BUG: 287642 FIXED-IN: 4.8.0
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@ -40,6 +40,8 @@ KFileItemModel::KFileItemModel(KDirLister* dirLister, QObject* parent) :
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m_caseSensitivity(Qt::CaseInsensitive),
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m_itemData(),
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m_items(),
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m_nameFilter(),
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m_filteredItems(),
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m_requestRole(),
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m_minimumUpdateIntervalTimer(0),
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m_maximumUpdateIntervalTimer(0),
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@ -475,6 +477,57 @@ void KFileItemModel::setExpanded(const QSet<KUrl>& urls)
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}
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}
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void KFileItemModel::setNameFilter(const QString& nameFilter)
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{
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if (m_nameFilter != nameFilter) {
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// TODO #1: Assure that expanded items only can get hidden
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// if no child item is visible
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// TODO #2: If the user entered a '*' use a regular expression
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m_nameFilter = nameFilter;
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const QString filter = nameFilter.toLower();
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// Check which shown items from m_itemData must get
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// hidden and hence moved to m_filteredItems.
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KFileItemList newFilteredItems;
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foreach (ItemData* itemData, m_itemData) {
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if (!matchesNameFilter(itemData->item, filter)) {
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m_filteredItems.append(itemData->item);
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newFilteredItems.append(itemData->item);
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}
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}
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if (!newFilteredItems.isEmpty()) {
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slotItemsDeleted(newFilteredItems);
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}
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// Check which hidden items from m_filteredItems should
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// get visible again and hence removed from m_filteredItems.
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KFileItemList newVisibleItems;
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for (int i = m_filteredItems.count() - 1; i >= 0; --i) {
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const KFileItem item = m_filteredItems.at(i);
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if (matchesNameFilter(item, filter)) {
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newVisibleItems.append(item);
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m_filteredItems.removeAt(i);
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}
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}
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if (!newVisibleItems.isEmpty()) {
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slotNewItems(newVisibleItems);
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dispatchPendingItemsToInsert();
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}
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}
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}
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QString KFileItemModel::nameFilter() const
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{
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return m_nameFilter;
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}
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void KFileItemModel::onGroupedSortingChanged(bool current)
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{
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Q_UNUSED(current);
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@ -1654,4 +1707,10 @@ QList<QPair<int, QVariant> > KFileItemModel::genericStringRoleGroups(const QByte
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return groups;
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}
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bool KFileItemModel::matchesNameFilter(const KFileItem& item, const QString& nameFilter)
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{
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const QString itemText = item.text().toLower();
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return itemText.contains(nameFilter);
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}
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#include "kfileitemmodel.moc"
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@ -134,6 +134,9 @@ public:
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*/
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void setExpanded(const QSet<KUrl>& urls);
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void setNameFilter(const QString& nameFilter);
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QString nameFilter() const;
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signals:
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void loadingCompleted();
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@ -271,6 +274,11 @@ private:
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*/
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bool isChildItem(int index) const;
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/**
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* @return True if the given item matches with the name filter.
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*/
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static bool matchesNameFilter(const KFileItem& item, const QString& nameFilter);
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private:
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QWeakPointer<KDirLister> m_dirLister;
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@ -284,6 +292,9 @@ private:
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QList<ItemData*> m_itemData;
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QHash<KUrl, int> m_items; // Allows O(1) access for KFileItemModel::index(const KFileItem& item)
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QString m_nameFilter;
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KFileItemList m_filteredItems; // Items that got hidden by KFileItemModel::setNameFilter()
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bool m_requestRole[RolesCount];
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QTimer* m_minimumUpdateIntervalTimer;
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@ -75,6 +75,8 @@ private slots:
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void testIndexForKeyboardSearch();
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void testNameFilter();
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private:
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bool isModelConsistent() const;
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QStringList itemsInModel() const;
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@ -643,6 +645,34 @@ void KFileItemModelTest::testIndexForKeyboardSearch()
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// TODO: Maybe we should also test keyboard searches in directories which are not sorted by Name?
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}
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void KFileItemModelTest::testNameFilter()
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{
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QStringList files;
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files << "A1" << "A2" << "Abc" << "Bcd" << "Cde";
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m_testDir->createFiles(files);
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m_dirLister->openUrl(m_testDir->url());
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QVERIFY(QTest::kWaitForSignal(m_model, SIGNAL(itemsInserted(KItemRangeList)), DefaultTimeout));
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m_model->setNameFilter("A"); // Shows A1, A2 and Abc
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QCOMPARE(m_model->count(), 3);
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m_model->setNameFilter("A2"); // Shows only A2
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QCOMPARE(m_model->count(), 1);
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m_model->setNameFilter("A2"); // Shows only A1
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QCOMPARE(m_model->count(), 1);
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m_model->setNameFilter("Bc"); // Shows "Abc" and "Bcd"
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QCOMPARE(m_model->count(), 2);
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m_model->setNameFilter("bC"); // Shows "Abc" and "Bcd"
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QCOMPARE(m_model->count(), 2);
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m_model->setNameFilter(QString()); // Shows again all items
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QCOMPARE(m_model->count(), 5);
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}
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bool KFileItemModelTest::isModelConsistent() const
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{
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for (int i = 0; i < m_model->count(); ++i) {
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@ -459,13 +459,12 @@ void DolphinView::refresh()
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void DolphinView::setNameFilter(const QString& nameFilter)
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{
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Q_UNUSED(nameFilter);
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//m_viewModeController->setNameFilter(nameFilter);
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fileItemModel()->setNameFilter(nameFilter);
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}
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QString DolphinView::nameFilter() const
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{
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return QString(); //m_viewModeController->nameFilter();
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return fileItemModel()->nameFilter();
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}
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void DolphinView::calculateItemCount(int& fileCount,
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