Changed QML Inspector from a separate global mode to a plugin.

The new QML Inspector depends on DebuggerPlugin. Also added a dropdown menu into
the debugger toolbar from which the user can select the used debugging
language, e.g. C++ or QML.

src/plugins/qmlinspector/qmlinspectorplugin.h

@@ -33,19 +33,24 @@
 
 #include <QtCore/QObject>
 #include <QtCore/QPointer>
-
-QT_BEGIN_NAMESPACE
+#include <QtCore/QTimer>
 
 class QStringList;
 
-class QmlInspectorMode;
-class InspectorOutputPane;
+namespace ProjectExplorer {
+    class Project;
+}
 
-namespace Core
-{
+namespace Core {
     class IMode;
 }
 
+namespace Qml {
+    class QmlInspector;
+    class InspectorOutputPane;
+
+const int MaxConnectionAttempts = 20;
+
 class QmlInspectorPlugin : public ExtensionSystem::IPlugin
 {
     Q_OBJECT
@@ -58,14 +63,23 @@ public:
     virtual void extensionsInitialized();
     virtual void shutdown();
 
+public slots:
+    void activateDebugger(const QString &langName);
+    void activateDebuggerForProject(ProjectExplorer::Project *project);
+    void setDockWidgetArrangement(const QString &activeLanguage);
+
 private slots:
-    void currentModeChanged(Core::IMode *mode);
+    void pollInspector();
+    void prepareDebugger(Core::IMode *mode);
 
 private:
-    QmlInspectorMode *m_inspectMode;
+    QmlInspector *m_inspector;
     InspectorOutputPane *m_outputPane;
+    QTimer *m_connectionTimer;
+    int m_connectionAttempts;
 };
 
+}
 
 QT_END_NAMESPACE