add drag & drop

Change-Id: I2921e9d443e470556e24115afed0146218de8c96

item/appitem.cpp

@@ -19,7 +19,8 @@ uint AppItem::ActiveWindowId = 0;
 
 AppItem::AppItem(const QDBusObjectPath &entry, QWidget *parent)
     : DockItem(App, parent),
-      m_itemEntry(new DBusDockEntry(entry.path(), this))
+      m_itemEntry(new DBusDockEntry(entry.path(), this)),
+      m_draging(false)
 {
     initClientManager();
 
@@ -32,6 +33,9 @@ void AppItem::paintEvent(QPaintEvent *e)
 {
     DockItem::paintEvent(e);
 
+    if (m_draging)
+        return;
+
     const QRect itemRect = rect();
     const int iconSize = std::min(itemRect.width(), itemRect.height());
 
@@ -90,6 +94,9 @@ void AppItem::mouseMoveEvent(QMouseEvent *e)
 
 void AppItem::startDrag()
 {
+    m_draging = true;
+    update();
+
     QPixmap pixmap(25, 25);
     pixmap.fill(Qt::red);
 
@@ -101,6 +108,9 @@ void AppItem::startDrag()
     const Qt::DropAction result = drag->exec(Qt::MoveAction);
 
     qDebug() << result;
+
+    m_draging = false;
+    update();
 }
 
 void AppItem::initClientManager()

item/appitem.h

@@ -25,6 +25,8 @@ private:
 private:
     DBusDockEntry *m_itemEntry;
 
+    bool m_draging;
+
     QMap<QString, QString> m_data;
     QMap<uint, QString> m_windows;
 

panel/mainpanel.cpp

@@ -1,6 +1,7 @@
 #include "mainpanel.h"
 
 #include <QBoxLayout>
+#include <QDragEnterEvent>
 
 MainPanel::MainPanel(QWidget *parent)
     : QFrame(parent),
@@ -8,6 +9,7 @@ MainPanel::MainPanel(QWidget *parent)
 
       m_itemController(DockItemController::instance(this))
 {
+    setAcceptDrops(true);
     setObjectName("MainPanel");
     setStyleSheet("QWidget #MainPanel {"
                   "border:none;"
@@ -40,6 +42,22 @@ void MainPanel::resizeEvent(QResizeEvent *e)
     adjustItemSize();
 }
 
+void MainPanel::dragEnterEvent(QDragEnterEvent *e)
+{
+    // TODO: check
+    e->accept();
+}
+
+void MainPanel::dragMoveEvent(QDragMoveEvent *e)
+{
+    qDebug() << e;
+}
+
+void MainPanel::dropEvent(QDropEvent *e)
+{
+    qDebug() << e;
+}
+
 void MainPanel::adjustItemSize()
 {
     const QList<DockItem *> itemList = m_itemController->itemList();

panel/mainpanel.h

@@ -18,6 +18,10 @@ public:
 
 private:
     void resizeEvent(QResizeEvent *e);
+    void dragEnterEvent(QDragEnterEvent *e);
+    void dragMoveEvent(QDragMoveEvent *e);
+    void dropEvent(QDropEvent *e);
+
     void adjustItemSize();
 
 private: