Index: /trunk/src/VBox/Frontends/VirtualBox/src/extradata/UIExtraDataDefs.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/extradata/UIExtraDataDefs.cpp	(revision 77013)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/extradata/UIExtraDataDefs.cpp	(revision 77014)
@@ -100,4 +100,5 @@
 /* Virtual Media Manager: */
 const char *UIExtraDataDefs::GUI_VirtualMediaManager_Details_Expanded = "GUI/VirtualMediaManager/Details/Expanded";
+const char *UIExtraDataDefs::GUI_VirtualMediaManager_Search_Widget_Expanded = "GUI/VirtualMediaManager/SearchWidget/Expanded";
 
 /* Host Network Manager: */
Index: /trunk/src/VBox/Frontends/VirtualBox/src/extradata/UIExtraDataDefs.h
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/extradata/UIExtraDataDefs.h	(revision 77013)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/extradata/UIExtraDataDefs.h	(revision 77014)
@@ -191,4 +191,6 @@
         /** Holds whether Virtual Media Manager details expanded. */
         SHARED_LIBRARY_STUFF extern const char *GUI_VirtualMediaManager_Details_Expanded;
+        /** Holds whether Virtual Media Manager search widget expanded. */
+        SHARED_LIBRARY_STUFF extern const char *GUI_VirtualMediaManager_Search_Widget_Expanded;
     /** @} */
 
Index: /trunk/src/VBox/Frontends/VirtualBox/src/extradata/UIExtraDataManager.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/extradata/UIExtraDataManager.cpp	(revision 77013)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/extradata/UIExtraDataManager.cpp	(revision 77014)
@@ -2975,4 +2975,16 @@
 }
 
+bool UIExtraDataManager::virtualMediaManagerSearchWidgetExpanded()
+{
+    /* 'False' unless feature allowed: */
+    return isFeatureAllowed(GUI_VirtualMediaManager_Search_Widget_Expanded);
+}
+
+void UIExtraDataManager::setVirtualMediaManagerSearchWidgetExpanded(bool fExpanded)
+{
+    /* 'True' if feature allowed, null-string otherwise: */
+    return setExtraDataString(GUI_VirtualMediaManager_Search_Widget_Expanded, toFeatureAllowed(fExpanded));
+}
+
 bool UIExtraDataManager::hostNetworkManagerDetailsExpanded()
 {
Index: /trunk/src/VBox/Frontends/VirtualBox/src/extradata/UIExtraDataManager.h
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/extradata/UIExtraDataManager.h	(revision 77013)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/extradata/UIExtraDataManager.h	(revision 77014)
@@ -370,4 +370,8 @@
         /** Defines whether Virtual Media Manager details @a fExpanded. */
         void setVirtualMediaManagerDetailsExpanded(bool fExpanded);
+        /** Returns whether Virtual Media Manager search widget expanded. */
+        bool virtualMediaManagerSearchWidgetExpanded();
+        /** Defines whether Virtual Media Manager search widget @a fExpanded. */
+        void setVirtualMediaManagerSearchWidgetExpanded(bool fExpanded);
     /** @} */
 
Index: /trunk/src/VBox/Frontends/VirtualBox/src/globals/UIActionPoolManager.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/globals/UIActionPoolManager.cpp	(revision 77013)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/globals/UIActionPoolManager.cpp	(revision 77014)
@@ -2042,4 +2042,48 @@
         setStatusTip(QApplication::translate("UIActionPool", "Open pane with selected disk image file properties"));
         setToolTip(QApplication::translate("UIActionPool", "Open Disk Image File Properties (%1)").arg(shortcut().toString()));
+    }
+};
+
+/** Toggle action extension, used as 'Toggle Search Pane' action class. */
+class UIActionMenuSelectorMediumToggleSearch : public UIActionToggle
+{
+    Q_OBJECT;
+
+public:
+
+    /** Constructs action passing @a pParent to the base-class. */
+    UIActionMenuSelectorMediumToggleSearch(UIActionPool *pParent)
+        : UIActionToggle(pParent)
+    {
+        setShortcutContext(Qt::WidgetWithChildrenShortcut);
+        setIcon(0, UIIconPool::iconSetFull(":/hd_modify_32px.png",          ":/hd_modify_16px.png",
+                                           ":/hd_modify_disabled_32px.png", ":/hd_modify_disabled_16px.png"));
+        setIcon(1, UIIconPool::iconSetFull(":/cd_modify_32px.png",          ":/cd_modify_16px.png",
+                                           ":/cd_modify_disabled_32px.png", ":/cd_modify_disabled_16px.png"));
+        setIcon(2, UIIconPool::iconSetFull(":/fd_modify_32px.png",          ":/fd_modify_16px.png",
+                                           ":/fd_modify_disabled_32px.png", ":/fd_modify_disabled_16px.png"));
+    }
+
+protected:
+
+    /** Returns shortcut extra-data ID. */
+    virtual QString shortcutExtraDataID() const /* override */
+    {
+        return QString("ToggleMediumSearch");
+    }
+
+    /** Returns default shortcut. */
+    virtual QKeySequence defaultShortcut(UIActionPoolType) const /* override */
+    {
+        return QKeySequence("");
+    }
+
+    /** Handles translation event. */
+    virtual void retranslateUi() /* override */
+    {
+        setName(QApplication::translate("UIActionPool", "&Search"));
+        setShortcutScope(QApplication::translate("UIActionPool", "Media Manager"));
+        setStatusTip(QApplication::translate("UIActionPool", "Open the medium search pane"));
+        setToolTip(QApplication::translate("UIActionPool", "Open Medium Search Pane (%1)").arg(shortcut().toString()));
     }
 };
@@ -2619,4 +2663,5 @@
     m_pool[UIActionIndexST_M_Medium_S_Release] = new UIActionMenuSelectorMediumPerformRelease(this);
     m_pool[UIActionIndexST_M_Medium_T_Details] = new UIActionMenuSelectorMediumToggleProperties(this);
+    m_pool[UIActionIndexST_M_Medium_T_Search] = new UIActionMenuSelectorMediumToggleSearch(this);
     m_pool[UIActionIndexST_M_Medium_S_Refresh] = new UIActionMenuSelectorMediumPerformRefresh(this);
 
@@ -3087,4 +3132,6 @@
     /* 'Properties' action: */
     fSeparator = addAction(pMenu, action(UIActionIndexST_M_Medium_T_Details)) || fSeparator;
+    /* 'Search' action: */
+    fSeparator = addAction(pMenu, action(UIActionIndexST_M_Medium_T_Search)) || fSeparator;
 
     /* Separator? */
Index: /trunk/src/VBox/Frontends/VirtualBox/src/globals/UIActionPoolManager.h
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/globals/UIActionPoolManager.h	(revision 77013)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/globals/UIActionPoolManager.h	(revision 77014)
@@ -138,4 +138,5 @@
     UIActionIndexST_M_Medium_S_Release,
     UIActionIndexST_M_Medium_T_Details,
+    UIActionIndexST_M_Medium_T_Search,
     UIActionIndexST_M_Medium_S_Refresh,
 
@@ -247,3 +248,2 @@
 
 #endif /* !FEQT_INCLUDED_SRC_globals_UIActionPoolManager_h */
-
Index: /trunk/src/VBox/Frontends/VirtualBox/src/medium/UIMediumManager.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/medium/UIMediumManager.cpp	(revision 77013)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/medium/UIMediumManager.cpp	(revision 77014)
@@ -37,4 +37,5 @@
 #include "UIMediumItem.h"
 #include "UIMediumManager.h"
+#include "UIMediumSearchWidget.h"
 #include "UIWizardCloneVD.h"
 #include "UIMessageCenter.h"
@@ -161,4 +162,5 @@
     , m_pToolBar(0)
     , m_pProgressBar(0)
+    , m_pSearchWidget(0)
 {
     /* Prepare: */
@@ -562,4 +564,13 @@
 }
 
+void UIMediumManagerWidget::sltToggleMediumSearchVisibility(bool fVisible)
+{
+    /* Save the setting: */
+    gEDataManager->setVirtualMediaManagerSearchWidgetExpanded(fVisible);
+    /* Toggle medium details visibility: */
+    if (m_pSearchWidget)
+        m_pSearchWidget->setVisible(fVisible);
+}
+
 void UIMediumManagerWidget::sltRefreshAll()
 {
@@ -588,4 +599,5 @@
     /* Re-fetch currently chosen medium-item: */
     refetchCurrentChosenMediumItem();
+    sltHandlePerformSearch();
 }
 
@@ -620,8 +632,10 @@
         menu.addAction(m_pActionPool->action(UIActionIndexST_M_Medium_S_Release));
         menu.addAction(m_pActionPool->action(UIActionIndexST_M_Medium_T_Details));
+        menu.addAction(m_pActionPool->action(UIActionIndexST_M_Medium_T_Search));
     }
     else
     {
         menu.addAction(m_pActionPool->action(UIActionIndexST_M_Medium_S_Add));
+        menu.addAction(m_pActionPool->action(UIActionIndexST_M_Medium_T_Search));
         menu.addAction(m_pActionPool->action(UIActionIndexST_M_Medium_S_Refresh));
     }
@@ -653,4 +667,15 @@
             pTreeWidget->header()->resizeSection(0, iSize0);
     }
+}
+
+void UIMediumManagerWidget::sltHandlePerformSearch()
+{
+    if (!m_pSearchWidget || !m_pTabWidget)
+        return;
+
+    QITreeWidget *pTreeWidget = treeWidget(static_cast<UIMediumDeviceType>(m_pTabWidget->currentIndex()));
+    if (!pTreeWidget)
+        return;
+    m_pSearchWidget->search(pTreeWidget);
 }
 
@@ -711,4 +736,5 @@
     addAction(m_pActionPool->action(UIActionIndexST_M_Medium_S_Release));
     addAction(m_pActionPool->action(UIActionIndexST_M_Medium_T_Details));
+    addAction(m_pActionPool->action(UIActionIndexST_M_Medium_T_Search));
     addAction(m_pActionPool->action(UIActionIndexST_M_Medium_S_Refresh));
 
@@ -726,4 +752,6 @@
     connect(m_pActionPool->action(UIActionIndexST_M_Medium_T_Details), &QAction::toggled,
             this, &UIMediumManagerWidget::sltToggleMediumDetailsVisibility);
+    connect(m_pActionPool->action(UIActionIndexST_M_Medium_T_Search), &QAction::toggled,
+            this, &UIMediumManagerWidget::sltToggleMediumSearchVisibility);
     connect(m_pActionPool->action(UIActionIndexST_M_Medium_S_Refresh), &QAction::triggered,
             this, &UIMediumManagerWidget::sltRefreshAll);
@@ -754,4 +782,6 @@
         /* Prepare details-widget: */
         prepareDetailsWidget();
+        /* Prepare search-widget: */
+        prepareSearchWidget();
     }
 }
@@ -776,4 +806,5 @@
         m_pToolBar->addAction(m_pActionPool->action(UIActionIndexST_M_Medium_S_Release));
         m_pToolBar->addAction(m_pActionPool->action(UIActionIndexST_M_Medium_T_Details));
+        m_pToolBar->addAction(m_pActionPool->action(UIActionIndexST_M_Medium_T_Search));
         m_pToolBar->addSeparator();
         m_pToolBar->addAction(m_pActionPool->action(UIActionIndexST_M_Medium_S_Refresh));
@@ -901,4 +932,20 @@
 }
 
+void UIMediumManagerWidget::prepareSearchWidget()
+{
+    m_pSearchWidget = new UIMediumSearchWidget(this);
+    AssertPtrReturnVoid(m_pSearchWidget);
+    {
+        m_pSearchWidget->setVisible(false);
+        m_pSearchWidget->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
+        connect(m_pSearchWidget, &UIMediumSearchWidget::sigPerformSearch,
+                this, &UIMediumManagerWidget::sltHandlePerformSearch);
+
+        /* Add into layout: */
+        layout()->addWidget(m_pSearchWidget);
+    }
+
+}
+
 void UIMediumManagerWidget::loadSettings()
 {
@@ -906,4 +953,8 @@
     m_pActionPool->action(UIActionIndexST_M_Medium_T_Details)->setChecked(gEDataManager->virtualMediaManagerDetailsExpanded());
     sltToggleMediumDetailsVisibility(m_pActionPool->action(UIActionIndexST_M_Medium_T_Details)->isChecked());
+
+    /* Search action/widget: */
+    m_pActionPool->action(UIActionIndexST_M_Medium_T_Search)->setChecked(gEDataManager->virtualMediaManagerSearchWidgetExpanded());
+    sltToggleMediumSearchVisibility(m_pActionPool->action(UIActionIndexST_M_Medium_T_Search)->isChecked());
 }
 
@@ -954,4 +1005,6 @@
         if (QTreeWidgetItem *pItem = pTreeWidgetFD->topLevelItem(0))
             setCurrentItem(pTreeWidgetFD, pItem);
+
+    sltHandlePerformSearch();
 }
 
Index: /trunk/src/VBox/Frontends/VirtualBox/src/medium/UIMediumManager.h
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/medium/UIMediumManager.h	(revision 77013)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/medium/UIMediumManager.h	(revision 77014)
@@ -40,4 +40,5 @@
 class UIMediumDetailsWidget;
 class UIMediumItem;
+class UIMediumSearchWidget;
 class UIToolBar;
 
@@ -177,4 +178,6 @@
         /** Handles command to make medium details @a fVisible. */
         void sltToggleMediumDetailsVisibility(bool fVisible);
+        /** Handles command to make medium search pane @a fVisible. */
+        void sltToggleMediumSearchVisibility(bool fVisible);
         /** Handles command to refresh medium. */
         void sltRefreshAll();
@@ -195,4 +198,10 @@
         /** Adjusts tree-widgets according content. */
         void sltPerformTablesAdjustment();
+    /** @} */
+
+   /** @name Medium search stuff.
+      * @{ */
+        /** Adjusts tree-widgets according content. */
+        void sltHandlePerformSearch();
     /** @} */
 
@@ -219,4 +228,6 @@
         /** Prepares details-widget. */
         void prepareDetailsWidget();
+        /** Prepares search-widget. */
+        void prepareSearchWidget();
         /** Load settings: */
         void loadSettings();
@@ -285,4 +296,5 @@
                                         const CheckIfSuitableBy &condition,
                                         CheckIfSuitableBy *pException = 0);
+
 
         /** Checks if @a action can be used for @a pItem. */
@@ -351,4 +363,11 @@
         UIEnumerationProgressBar *m_pProgressBar;
     /** @} */
+
+    /** @name Search-widget variables.
+      * @{ */
+        /** Holds the medium details-widget instance. */
+        UIMediumSearchWidget *m_pSearchWidget;
+    /** @} */
+
 };