diff --git a/dbus/dbusclientmanager.cpp b/dbus/dbusclientmanager.cpp
new file mode 100644
index 000000000..ead7b6905
--- /dev/null
+++ b/dbus/dbusclientmanager.cpp
@@ -0,0 +1,28 @@
+/*
+ * This file was generated by qdbusxml2cpp version 0.8
+ * Command line was: qdbusxml2cpp -c DBusClientManager -p dbusclientmanager dde-dock-ClientManager.xml
+ *
+ * qdbusxml2cpp is Copyright (C) 2015 Digia Plc and/or its subsidiary(-ies).
+ *
+ * This is an auto-generated file.
+ * This file may have been hand-edited. Look for HAND-EDIT comments
+ * before re-generating it.
+ */
+
+#include "dbusclientmanager.h"
+
+/*
+ * Implementation of interface class DBusClientManager
+ */
+
+DBusClientManager::DBusClientManager(QObject *parent)
+    : QDBusAbstractInterface("com.deepin.daemon.Dock", "/dde/dock/ClientManager", staticInterfaceName(), QDBusConnection::sessionBus(), parent)
+{
+    QDBusConnection::sessionBus().connect(this->service(), this->path(), "org.freedesktop.DBus.Properties",  "PropertiesChanged","sa{sv}as", this, SLOT(__propertyChanged__(QDBusMessage)));
+}
+
+DBusClientManager::~DBusClientManager()
+{
+    QDBusConnection::sessionBus().disconnect(service(), path(), "org.freedesktop.DBus.Properties",  "PropertiesChanged",  "sa{sv}as", this, SLOT(propertyChanged(QDBusMessage)));
+}
+
diff --git a/dbus/dbusclientmanager.h b/dbus/dbusclientmanager.h
new file mode 100644
index 000000000..4ccf9b2a0
--- /dev/null
+++ b/dbus/dbusclientmanager.h
@@ -0,0 +1,89 @@
+/*
+ * This file was generated by qdbusxml2cpp version 0.8
+ * Command line was: qdbusxml2cpp -c DBusClientManager -p dbusclientmanager dde-dock-ClientManager.xml
+ *
+ * qdbusxml2cpp is Copyright (C) 2015 Digia Plc and/or its subsidiary(-ies).
+ *
+ * This is an auto-generated file.
+ * Do not edit! All changes made to it will be lost.
+ */
+
+#ifndef DBUSCLIENTMANAGER_H_1465195317
+#define DBUSCLIENTMANAGER_H_1465195317
+
+#include <QtCore/QObject>
+#include <QtCore/QByteArray>
+#include <QtCore/QList>
+#include <QtCore/QMap>
+#include <QtCore/QString>
+#include <QtCore/QStringList>
+#include <QtCore/QVariant>
+#include <QtDBus/QtDBus>
+
+/*
+ * Proxy class for interface dde.dock.ClientManager
+ */
+class DBusClientManager: public QDBusAbstractInterface
+{
+    Q_OBJECT
+
+    Q_SLOT void __propertyChanged__(const QDBusMessage& msg)
+    {
+        QList<QVariant> arguments = msg.arguments();
+        if (3 != arguments.count())
+            return;
+        QString interfaceName = msg.arguments().at(0).toString();
+        if (interfaceName !="dde.dock.ClientManager")
+            return;
+        QVariantMap changedProps = qdbus_cast<QVariantMap>(arguments.at(1).value<QDBusArgument>());
+        foreach(const QString &prop, changedProps.keys()) {
+        const QMetaObject* self = metaObject();
+            for (int i=self->propertyOffset(); i < self->propertyCount(); ++i) {
+                QMetaProperty p = self->property(i);
+                if (p.name() == prop) {
+ 	            Q_EMIT p.notifySignal().invoke(this);
+                }
+            }
+        }
+   }
+public:
+    static inline const char *staticInterfaceName()
+    { return "dde.dock.ClientManager"; }
+
+public:
+    explicit DBusClientManager(QObject *parent = 0);
+
+    ~DBusClientManager();
+
+public Q_SLOTS: // METHODS
+    inline QDBusPendingReply<bool> ActivateWindow(uint in0)
+    {
+        QList<QVariant> argumentList;
+        argumentList << QVariant::fromValue(in0);
+        return asyncCallWithArgumentList(QStringLiteral("ActivateWindow"), argumentList);
+    }
+
+    inline QDBusPendingReply<bool> CloseWindow(uint in0)
+    {
+        QList<QVariant> argumentList;
+        argumentList << QVariant::fromValue(in0);
+        return asyncCallWithArgumentList(QStringLiteral("CloseWindow"), argumentList);
+    }
+
+    inline QDBusPendingReply<uint> CurrentActiveWindow()
+    {
+        QList<QVariant> argumentList;
+        return asyncCallWithArgumentList(QStringLiteral("CurrentActiveWindow"), argumentList);
+    }
+
+Q_SIGNALS: // SIGNALS
+    void ActiveWindowChanged(uint activeWinId);
+// begin property changed signals
+};
+
+namespace dde {
+  namespace dock {
+    typedef ::DBusClientManager ClientManager;
+  }
+}
+#endif
diff --git a/dbus/dde-dock-ClientManager.xml b/dbus/dde-dock-ClientManager.xml
new file mode 100644
index 000000000..59680d745
--- /dev/null
+++ b/dbus/dde-dock-ClientManager.xml
@@ -0,0 +1,16 @@
+     <interface name="dde.dock.ClientManager">
+          <method name="ActivateWindow">
+               <arg type="u" direction="in"></arg>
+               <arg type="b" direction="out"></arg>
+          </method>
+          <method name="CloseWindow">
+               <arg type="u" direction="in"></arg>
+               <arg type="b" direction="out"></arg>
+          </method>
+          <method name="CurrentActiveWindow">
+               <arg type="u" direction="out"></arg>
+          </method>
+          <signal name="ActiveWindowChanged">
+               <arg type="u"></arg>
+          </signal>
+     </interface>
diff --git a/dde-dock.pro b/dde-dock.pro
index 82f06c742..befd79231 100644
--- a/dde-dock.pro
+++ b/dde-dock.pro
@@ -17,7 +17,8 @@ SOURCES += main.cpp \
     dbus/dbusdisplay.cpp \
     item/appitem.cpp \
     util/docksettings.cpp \
-    item/placeholderitem.cpp
+    item/placeholderitem.cpp \
+    dbus/dbusclientmanager.cpp
 
 HEADERS  += \
     window/mainwindow.h \
@@ -30,4 +31,5 @@ HEADERS  += \
     dbus/dbusdisplay.h \
     item/appitem.h \
     util/docksettings.h \
-    item/placeholderitem.h
+    item/placeholderitem.h \
+    dbus/dbusclientmanager.h
diff --git a/item/appitem.cpp b/item/appitem.cpp
index 1c1bd4d6e..544ba8dbc 100644
--- a/item/appitem.cpp
+++ b/item/appitem.cpp
@@ -10,11 +10,14 @@
 #define APP_ACTIVE_STATUS       "active"
 #define APP_NORMAL_STATUS       "normal"
 
+DBusClientManager *AppItem::ClientInter = nullptr;
+uint AppItem::ActiveWindowId = 0;
+
 AppItem::AppItem(const QDBusObjectPath &entry, QWidget *parent)
     : DockItem(App, parent),
       m_itemEntry(new DBusDockEntry(entry.path(), this))
 {
-    qDebug() << m_itemEntry->data();
+    initClientManager();
 
     m_data = m_itemEntry->data();
 
@@ -35,11 +38,16 @@ void AppItem::paintEvent(QPaintEvent *e)
 
     QPainter painter(this);
 
-    // draw active background
-    if (m_data[APP_STATUS_KEY] == APP_ACTIVE_STATUS)
+    // draw current active background
+    if (m_windows.contains(ActiveWindowId))
     {
+        painter.fillRect(rect(), Qt::blue);
+    } else if (m_data[APP_STATUS_KEY] == APP_ACTIVE_STATUS)
+    {
+        // draw active background
         painter.fillRect(rect(), Qt::cyan);
     } else {
+        // draw normal background
         painter.fillRect(rect(), Qt::gray);
     }
 
@@ -58,6 +66,17 @@ void AppItem::mouseReleaseEvent(QMouseEvent *e)
     m_itemEntry->Activate();
 }
 
+void AppItem::initClientManager()
+{
+    if (ClientInter)
+        return;
+
+    ClientInter = new DBusClientManager(this);
+    connect(ClientInter, &DBusClientManager::ActiveWindowChanged, [&] (const uint wid) {
+        ActiveWindowId = wid;
+    });
+}
+
 void AppItem::entryDataChanged(const QString &key, const QString &value)
 {
     // update data
diff --git a/item/appitem.h b/item/appitem.h
index cdac0452c..bb2f20b6d 100644
--- a/item/appitem.h
+++ b/item/appitem.h
@@ -3,6 +3,7 @@
 
 #include "dockitem.h"
 #include "dbus/dbusdockentry.h"
+#include "dbus/dbusclientmanager.h"
 
 class AppItem : public DockItem
 {
@@ -15,13 +16,17 @@ private:
     void paintEvent(QPaintEvent *e);
     void mouseReleaseEvent(QMouseEvent *e);
 
+    void initClientManager();
     void entryDataChanged(const QString &key, const QString &value);
 
 private:
     DBusDockEntry *m_itemEntry;
 
     QMap<QString, QString> m_data;
-//    QMap<uint, QString> m_windows;
+    QMap<uint, QString> m_windows;
+
+    static DBusClientManager *ClientInter;
+    static uint ActiveWindowId;
 };
 
 #endif // APPITEM_H