Add filtering to About Plugins.

Change-Id: If5733b37b123f261acfffb24cf9b81683c2d9118
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@theqtcompany.com>
Reviewed-by: Daniel Teske <daniel.teske@theqtcompany.com>

src/libs/extensionsystem/pluginview.cpp

@@ -79,6 +79,8 @@ using namespace Utils;
 
 namespace ExtensionSystem {
 
+namespace Internal {
+
 enum Columns { NameColumn, LoadedColumn, VersionColumn, VendorColumn, };
 
 enum IconIndex { OkIcon, ErrorIcon, NotLoadedIcon };
@@ -275,6 +277,40 @@ public:
     PluginView *m_view; // Not owned.
 };
 
+class SortFilterModel : public QSortFilterProxyModel
+{
+public:
+    SortFilterModel(QObject *parent) : QSortFilterProxyModel(parent) {}
+
+protected:
+    bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const override
+    {
+        if (!source_parent.isValid()) {
+            // category items should be visible if any of its children match
+            const QRegExp &regexp = filterRegExp();
+            const QModelIndex &categoryIndex = sourceModel()->index(source_row, 0, source_parent);
+            if (regexp.indexIn(sourceModel()->data(categoryIndex, filterRole()).toString()) != -1)
+                return true;
+            const int rowCount = sourceModel()->rowCount(categoryIndex);
+            const int columnCount = sourceModel()->columnCount(categoryIndex);
+            for (int row = 0; row < rowCount; ++row) {
+                for (int column = 0; column < columnCount; ++column) {
+                    if (regexp.indexIn(sourceModel()->data(
+                                           sourceModel()->index(row, column, categoryIndex),
+                                           filterRole()).toString()) != -1)
+                        return true;
+                }
+            }
+            return false;
+        }
+        return QSortFilterProxyModel::filterAcceptsRow(source_row, source_parent);
+    }
+};
+
+} // Internal
+
+using namespace ExtensionSystem::Internal;
+
 /*!
     Constructs a PluginView that gets the list of plugins from the
     given plugin \a manager with a given \a parent widget.
@@ -298,9 +334,11 @@ PluginView::PluginView(QWidget *parent)
     m_model = new TreeModel(this);
     m_model->setHeader(QStringList() << tr("Name") << tr("Load") << tr("Version") << tr("Vendor"));
 
-    m_sortModel = new QSortFilterProxyModel(this);
+    m_sortModel = new SortFilterModel(this);
     m_sortModel->setSourceModel(m_model);
     m_sortModel->setSortRole(SortRole);
+    m_sortModel->setFilterCaseSensitivity(Qt::CaseInsensitive);
+    m_sortModel->setFilterKeyColumn(-1/*all*/);
     m_categoryView->setModel(m_sortModel);
 
     QGridLayout *gridLayout = new QGridLayout(this);
@@ -338,6 +376,12 @@ PluginSpec *PluginView::currentPlugin() const
     return pluginForIndex(m_categoryView->currentIndex());
 }
 
+void PluginView::setFilter(const QString &filter)
+{
+    m_sortModel->setFilterFixedString(filter);
+    m_categoryView->expandAll();
+}
+
 PluginSpec *PluginView::pluginForIndex(const QModelIndex &index) const
 {
     const QModelIndex &sourceIndex = m_sortModel->mapToSource(index);

src/libs/extensionsystem/pluginview.h

@@ -51,8 +51,11 @@ namespace ExtensionSystem {
 
 class PluginManager;
 class PluginSpec;
+
+namespace Internal {
 class PluginItem;
 class CollectionItem;
+} // Internal
 
 class EXTENSIONSYSTEM_EXPORT PluginView : public QWidget
 {
@@ -63,6 +66,7 @@ public:
     ~PluginView();
 
     PluginSpec *currentPlugin() const;
+    void setFilter(const QString &filter);
 
 signals:
     void currentPluginChanged(ExtensionSystem::PluginSpec *spec);
@@ -78,8 +82,8 @@ private:
     Utils::TreeModel *m_model;
     QSortFilterProxyModel *m_sortModel;
 
-    friend class CollectionItem;
+    friend class Internal::CollectionItem;
-    friend class PluginItem;
+    friend class Internal::PluginItem;
 };
 
 } // namespae ExtensionSystem

src/plugins/coreplugin/plugindialog.cpp

@@ -36,6 +36,8 @@
 #include <extensionsystem/pluginerrorview.h>
 #include <extensionsystem/pluginspec.h>
 
+#include <utils/fancylineedit.h>
+
 #include <QVBoxLayout>
 #include <QHBoxLayout>
 #include <QDialog>
@@ -54,6 +56,13 @@ PluginDialog::PluginDialog(QWidget *parent)
       m_view(new ExtensionSystem::PluginView(this))
 {
     QVBoxLayout *vl = new QVBoxLayout(this);
+
+    auto filterEdit = new Utils::FancyLineEdit(this);
+    filterEdit->setFiltering(true);
+    connect(filterEdit, &Utils::FancyLineEdit::filterChanged,
+            m_view, &ExtensionSystem::PluginView::setFilter);
+    vl->addWidget(filterEdit);
+
     vl->addWidget(m_view);
 
     m_detailsButton = new QPushButton(tr("Details"), this);