Added implementation of the FileInfoExtension to allow KPart plugins to obtain such information

svn path=/trunk/KDE/kdebase/apps/; revision=1191993

src/dolphinpart.cpp

@@ -38,6 +38,7 @@
 #include <knewfilemenu.h>
 #include <kmenu.h>
 #include <kinputdialog.h>
+#include <kprotocolinfo.h>
 
 #include "settings/dolphinsettings.h"
 #include "views/dolphinview.h"
@@ -61,6 +62,7 @@ DolphinPart::DolphinPart(QWidget* parentWidget, QObject* parent, const QVariantL
     Q_UNUSED(args)
     setComponentData(DolphinPartFactory::componentData(), false);
     m_extension = new DolphinPartBrowserExtension(this);
+    new DolphinPartFileInfoExtension(this);
 
     // make sure that other apps using this part find Dolphin's view-file-columns icons
     KIconLoader::global()->addAppDir("dolphin");
@@ -465,46 +467,6 @@ void DolphinPart::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
     }
 }
 
-////
-
-void DolphinPartBrowserExtension::restoreState(QDataStream &stream)
-{
-    KParts::BrowserExtension::restoreState(stream);
-    m_part->view()->restoreState(stream);
-}
-
-void DolphinPartBrowserExtension::saveState(QDataStream &stream)
-{
-    KParts::BrowserExtension::saveState(stream);
-    m_part->view()->saveState(stream);
-}
-
-void DolphinPartBrowserExtension::cut()
-{
-    m_part->view()->cutSelectedItems();
-}
-
-void DolphinPartBrowserExtension::copy()
-{
-    m_part->view()->copySelectedItems();
-}
-
-void DolphinPartBrowserExtension::paste()
-{
-    m_part->view()->paste();
-}
-
-void DolphinPartBrowserExtension::pasteTo(const KUrl&)
-{
-    m_part->view()->pasteIntoFolder();
-}
-
-void DolphinPartBrowserExtension::reparseConfiguration()
-{
-    m_part->view()->refresh();
-}
-
-////
 
 void DolphinPart::slotEditMimeType()
 {
@@ -630,4 +592,89 @@ void DolphinPart::setFilesToSelect(const KUrl::List& files)
     m_view->markUrlsAsSelected(files);
 }
 
+////
+
+void DolphinPartBrowserExtension::restoreState(QDataStream &stream)
+{
+    KParts::BrowserExtension::restoreState(stream);
+    m_part->view()->restoreState(stream);
+}
+
+void DolphinPartBrowserExtension::saveState(QDataStream &stream)
+{
+    KParts::BrowserExtension::saveState(stream);
+    m_part->view()->saveState(stream);
+}
+
+void DolphinPartBrowserExtension::cut()
+{
+    m_part->view()->cutSelectedItems();
+}
+
+void DolphinPartBrowserExtension::copy()
+{
+    m_part->view()->copySelectedItems();
+}
+
+void DolphinPartBrowserExtension::paste()
+{
+    m_part->view()->paste();
+}
+
+void DolphinPartBrowserExtension::pasteTo(const KUrl&)
+{
+    m_part->view()->pasteIntoFolder();
+}
+
+void DolphinPartBrowserExtension::reparseConfiguration()
+{
+    m_part->view()->refresh();
+}
+
+////
+
+DolphinPartFileInfoExtension::DolphinPartFileInfoExtension(DolphinPart* part)
+                             : KParts::FileInfoExtension(part)
+{
+}
+
+DolphinPart* DolphinPartFileInfoExtension::part() const
+{
+    return static_cast<DolphinPart*>(parent());
+}
+
+bool DolphinPartFileInfoExtension::hasSelection() const
+{
+    return part()->view()->hasSelection();
+}
+
+KParts::FileInfoExtension::QueryModes DolphinPartFileInfoExtension::supportedQueryModes() const
+{
+    return (KParts::FileInfoExtension::AllItems | KParts::FileInfoExtension::SelectedItems);
+}
+
+KFileItemList DolphinPartFileInfoExtension::queryFor(KParts::FileInfoExtension::QueryMode mode) const
+{
+    KFileItemList list;
+
+    if (mode == KParts::FileInfoExtension::None)
+      return list;
+
+    if (!(supportedQueryModes() & mode))
+      return list;
+
+    switch (mode) {
+      case KParts::FileInfoExtension::SelectedItems:
+          if (hasSelection())
+              return part()->view()->selectedItems();
+          break;
+      case KParts::FileInfoExtension::AllItems:
+          return part()->view()->allItems();
+      default:
+          break;
+    }
+
+    return list;
+}
+
 #include "dolphinpart.moc"

src/dolphinpart.h

@@ -22,6 +22,7 @@
 
 #include <kparts/part.h>
 #include <kparts/browserextension.h>
+#include <kparts/fileinfoextension.h>
 
 #include <QItemSelectionModel>
 
@@ -262,4 +263,20 @@ private:
     DolphinPart* m_part;
 };
 
+
+class DolphinPartFileInfoExtension : public KParts::FileInfoExtension
+{
+    Q_OBJECT
+
+public:
+    DolphinPartFileInfoExtension(DolphinPart* part);
+
+    virtual QueryModes supportedQueryModes() const;
+    virtual bool hasSelection() const;
+
+    virtual KFileItemList queryFor(QueryMode mode) const;
+protected:
+    DolphinPart* part() const;
+};
+
 #endif /* DOLPHINPART_H */

src/views/dolphinview.cpp

@@ -1458,4 +1458,9 @@ void DolphinView::restoreContentsPosition()
     }
 }
 
+KFileItemList DolphinView::allItems() const
+{
+    return m_viewAccessor.dirLister()->items();
+}
+
 #include "dolphinview.moc"

src/views/dolphinview.h

@@ -324,6 +324,11 @@ public:
      */
     void saveState(QDataStream& stream);
 
+    /**
+     * Returns all the items in the current view.
+     */
+    KFileItemList allItems() const;
+
 public slots:
     /**
      * Changes the directory to \a url. If the current directory is equal to