diff --git a/designer/src/com/fr/design/mainframe/AuthorityToolBarPane.java b/designer/src/com/fr/design/mainframe/AuthorityToolBarPane.java
index fcb6988b9..da856173a 100644
--- a/designer/src/com/fr/design/mainframe/AuthorityToolBarPane.java
+++ b/designer/src/com/fr/design/mainframe/AuthorityToolBarPane.java
@@ -3,7 +3,6 @@ package com.fr.design.mainframe;
 import com.fr.base.ConfigManager;
 import com.fr.base.ConfigManagerProvider;
 import com.fr.base.FRContext;
-import com.fr.common.inputevent.InputEventBaseOnOS;
 import com.fr.design.beans.BasicBeanPane;
 import com.fr.design.file.HistoryTemplateListPane;
 import com.fr.design.gui.icombobox.UIComboBox;
@@ -68,7 +67,7 @@ public class AuthorityToolBarPane<T extends WebContent> extends BasicBeanPane<Re
                         buttonlists.get(i).setSelected(true);
                     }
                 }
-            } else if (!InputEventBaseOnOS.isControlDown(e)) {
+            } else if (!e.isControlDown()) {
                 //实现单选
                 removeSelection();
                 if (selectedIndex != -1) {
@@ -236,7 +235,7 @@ public class AuthorityToolBarPane<T extends WebContent> extends BasicBeanPane<Re
                 dealWithWebContent(webAttr.getWebView(), widget, isSelected, selectedRole);
             }
         }
-        
+
     }
 
     private void dealWithWebContent(WebContent wc, Widget widget, boolean isSelected, String selectedRole) {
diff --git a/designer/src/com/fr/grid/GridKeyListener.java b/designer/src/com/fr/grid/GridKeyListener.java
index b3d57ab67..ff3d843fb 100644
--- a/designer/src/com/fr/grid/GridKeyListener.java
+++ b/designer/src/com/fr/grid/GridKeyListener.java
@@ -1,6 +1,5 @@
 package com.fr.grid;
 
-import com.fr.common.inputevent.InputEventBaseOnOS;
 import com.fr.design.mainframe.ElementCasePane;
 import com.fr.grid.selection.CellSelection;
 import com.fr.grid.selection.FloatSelection;
@@ -67,7 +66,7 @@ public class GridKeyListener implements KeyListener {
             }
             // Richie:Ctrl + A全选单元格
             case KeyEvent.VK_A:
-                if (InputEventBaseOnOS.isControlDown(evt)) {
+                if (evt.isControlDown()) {
                     reportPane.setSelection(new CellSelection(0, 0, report.getColumnCount(), report.getRowCount()));
                 }
                 isNeedRepaint = true;
@@ -161,7 +160,7 @@ public class GridKeyListener implements KeyListener {
             return;
         }
         KeyEvent newEvt = KeyEventWork.processKeyEvent(evt);
-        if (newEvt == null || InputEventBaseOnOS.isControlDown(evt)) {// uneditable.
+        if (newEvt == null || evt.isControlDown()) {// uneditable.
             return;
         }
         char ch = evt.getKeyChar();
diff --git a/designer/src/com/fr/grid/GridMouseAdapter.java b/designer/src/com/fr/grid/GridMouseAdapter.java
index 8a4053353..974a2cfbb 100644
--- a/designer/src/com/fr/grid/GridMouseAdapter.java
+++ b/designer/src/com/fr/grid/GridMouseAdapter.java
@@ -3,7 +3,6 @@ package com.fr.grid;
 import com.fr.base.BaseUtils;
 import com.fr.base.DynamicUnitList;
 import com.fr.base.ScreenResolution;
-import com.fr.common.inputevent.InputEventBaseOnOS;
 import com.fr.design.constants.UIConstants;
 import com.fr.design.mainframe.DesignerContext;
 import com.fr.design.mainframe.ElementCasePane;
@@ -165,7 +164,7 @@ public class GridMouseAdapter implements MouseListener, MouseWheelListener, Mous
         ElementCasePane reportPane = grid.getElementCasePane();
         TemplateElementCase report = reportPane.getEditingElementCase();
         boolean isShiftDown = evt.isShiftDown();
-        boolean isControlDown = InputEventBaseOnOS.isControlDown(evt);
+        boolean isControlDown = evt.isControlDown();
         int clickCount = evt.getClickCount();
         // peter:需要判断是否在可移动CellSelection的区域
         grid.setDragType(isMoveCellSelection(this.oldEvtX, this.oldEvtY));
@@ -337,7 +336,7 @@ public class GridMouseAdapter implements MouseListener, MouseWheelListener, Mous
             return;
         }
 
-        boolean isControlDown = InputEventBaseOnOS.isControlDown(evt);
+        boolean isControlDown = evt.isControlDown();
 
         long systemCurrentTime = System.currentTimeMillis();
         if (systemCurrentTime - lastMouseMoveTime <= DRAG_REFRESH_TIME) {// alex:Drag
diff --git a/designer_base/src/com/fr/common/inputevent/InputEventBaseOnOS.java b/designer_base/src/com/fr/common/inputevent/InputEventBaseOnOS.java
deleted file mode 100644
index 29b6b9ce3..000000000
--- a/designer_base/src/com/fr/common/inputevent/InputEventBaseOnOS.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package com.fr.common.inputevent;
-
-import com.fr.stable.OperatingSystem;
-
-import java.awt.event.KeyEvent;
-import java.awt.event.MouseEvent;
-
-/**
- * Created by hzzz on 2017/5/26.
- */
-public class InputEventBaseOnOS {
-    private static final boolean IS_MACOS = OperatingSystem.isMacOS();
-
-    public static boolean isControlDown(MouseEvent e) {
-        return IS_MACOS ? e.isMetaDown() : e.isControlDown();
-    }
-
-    public static boolean isControlDown(KeyEvent e) {
-        return IS_MACOS ? e.isMetaDown() : e.isControlDown();
-    }
-}
diff --git a/designer_base/src/com/fr/design/gui/icombobox/ExtendedComboBox.java b/designer_base/src/com/fr/design/gui/icombobox/ExtendedComboBox.java
index 512b5713b..60cdd2683 100644
--- a/designer_base/src/com/fr/design/gui/icombobox/ExtendedComboBox.java
+++ b/designer_base/src/com/fr/design/gui/icombobox/ExtendedComboBox.java
@@ -1,23 +1,12 @@
 package com.fr.design.gui.icombobox;
 
-import com.fr.common.inputevent.InputEventBaseOnOS;
-
-import java.awt.Component;
-import java.awt.Dimension;
-import java.awt.Point;
-import java.awt.Rectangle;
-import java.awt.event.InputEvent;
-import java.awt.event.MouseEvent;
-import java.util.Vector;
-
-import javax.swing.ComboBoxModel;
-import javax.swing.JComboBox;
-import javax.swing.JComponent;
-import javax.swing.JList;
-import javax.swing.ListCellRenderer;
+import javax.swing.*;
 import javax.swing.plaf.ComponentUI;
 import javax.swing.plaf.basic.BasicComboPopup;
 import javax.swing.plaf.basic.ComboPopup;
+import java.awt.*;
+import java.awt.event.MouseEvent;
+import java.util.Vector;
 
 import static com.fr.design.gui.syntax.ui.rtextarea.RTADefaultInputMap.DEFAULT_MODIFIER;
 
@@ -78,7 +67,7 @@ public class ExtendedComboBox extends UIComboBox {
         protected JList createList() {
             return new JList(comboBox.getModel()) {
                 public void processMouseEvent(MouseEvent e) {
-                    if (InputEventBaseOnOS.isControlDown(e)) {
+                    if (e.isControlDown()) {
                         //   Fix   for   4234053.   Filter   out   the   Control
                         //   Key   from   the   list.
                         //   ie.,   don't   allow   CTRL   key   deselection.
diff --git a/designer_base/src/com/fr/design/gui/icombobox/UIComboBoxUI.java b/designer_base/src/com/fr/design/gui/icombobox/UIComboBoxUI.java
index f5cd1eabb..5ba3b2ce5 100644
--- a/designer_base/src/com/fr/design/gui/icombobox/UIComboBoxUI.java
+++ b/designer_base/src/com/fr/design/gui/icombobox/UIComboBoxUI.java
@@ -1,29 +1,19 @@
 package com.fr.design.gui.icombobox;
 
-import java.awt.Color;
-import java.awt.Component;
-import java.awt.Graphics;
-import java.awt.Graphics2D;
-import java.awt.Point;
-import java.awt.Rectangle;
-import java.awt.RenderingHints;
-import java.awt.event.InputEvent;
-import java.awt.event.MouseEvent;
-import java.awt.event.MouseListener;
-
-import javax.swing.*;
-import javax.swing.plaf.basic.BasicComboBoxUI;
-import javax.swing.plaf.basic.BasicComboPopup;
-import javax.swing.plaf.basic.ComboPopup;
-
-import com.fr.common.inputevent.InputEventBaseOnOS;
 import com.fr.design.constants.UIConstants;
-import sun.swing.DefaultLookup;
-
 import com.fr.design.gui.ibutton.UIButton;
 import com.fr.design.gui.icontainer.UIScrollPane;
 import com.fr.stable.Constants;
 import com.fr.stable.StringUtils;
+import sun.swing.DefaultLookup;
+
+import javax.swing.*;
+import javax.swing.plaf.basic.BasicComboBoxUI;
+import javax.swing.plaf.basic.BasicComboPopup;
+import javax.swing.plaf.basic.ComboPopup;
+import java.awt.*;
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseListener;
 
 import static com.fr.design.gui.syntax.ui.rtextarea.RTADefaultInputMap.DEFAULT_MODIFIER;
 
@@ -210,7 +200,7 @@ public class UIComboBoxUI extends BasicComboBoxUI implements MouseListener {
 
                 @Override
                 public void processMouseEvent(MouseEvent e) {
-                    if (InputEventBaseOnOS.isControlDown(e)) {
+                    if (e.isControlDown()) {
                         e = new MouseEvent((Component) e.getSource(), e.getID(), e.getWhen(), e.getModifiers() ^ DEFAULT_MODIFIER, e.getX(), e.getY(), e.getClickCount(),
                                 e.isPopupTrigger());
                     }
diff --git a/designer_base/src/com/fr/design/gui/itable/TableSorter.java b/designer_base/src/com/fr/design/gui/itable/TableSorter.java
index 4b2f2995c..c8c517e64 100644
--- a/designer_base/src/com/fr/design/gui/itable/TableSorter.java
+++ b/designer_base/src/com/fr/design/gui/itable/TableSorter.java
@@ -16,7 +16,6 @@ import java.util.Map;
 
 import javax.swing.Icon;
 
-import com.fr.common.inputevent.InputEventBaseOnOS;
 import com.fr.design.gui.ilable.UILabel;
 import javax.swing.JTable;
 import javax.swing.event.TableModelEvent;
@@ -394,7 +393,7 @@ public class TableSorter extends AbstractTableModel {
             int column = columnModel.getColumn(viewColumn).getModelIndex();
             if (column != -1) {
                 int status = getSortingStatus(column);
-                if (!InputEventBaseOnOS.isControlDown(e)) {
+                if (!e.isControlDown()) {
                     cancelSorting();
                 }
                 // Cycle the sorting states through {NOT_SORTED, ASCENDING, DESCENDING} or 
diff --git a/designer_base/src/com/fr/design/gui/itree/refreshabletree/UserObjectRefreshJTree.java b/designer_base/src/com/fr/design/gui/itree/refreshabletree/UserObjectRefreshJTree.java
index 0224a4349..b463ca7eb 100644
--- a/designer_base/src/com/fr/design/gui/itree/refreshabletree/UserObjectRefreshJTree.java
+++ b/designer_base/src/com/fr/design/gui/itree/refreshabletree/UserObjectRefreshJTree.java
@@ -1,6 +1,5 @@
 package com.fr.design.gui.itree.refreshabletree;
 
-import com.fr.common.inputevent.InputEventBaseOnOS;
 import com.fr.general.NameObject;
 import com.fr.design.gui.itree.refreshabletree.loader.ChildrenLoaderFactory;
 import com.fr.general.ComparatorUtils;
@@ -148,7 +147,7 @@ public abstract class UserObjectRefreshJTree<T extends UserObjectOP<?>> extends
 					}
 				}
 				// marks:鼠标在上次选中的paths上，则将上次的paths设为的树的路径,否则将鼠标所在的节点设为选中的节点
-				if (!(e.isShiftDown() || InputEventBaseOnOS.isControlDown(e))) {
+				if (!(e.isShiftDown() || e.isControlDown())) {
 					if (isFind) {
 						setSelectionPaths(oldPaths);
 					} else {
diff --git a/designer_base/src/com/fr/design/roleAuthority/UIRoleTreeUI.java b/designer_base/src/com/fr/design/roleAuthority/UIRoleTreeUI.java
index 9b996410a..e6b049b33 100644
--- a/designer_base/src/com/fr/design/roleAuthority/UIRoleTreeUI.java
+++ b/designer_base/src/com/fr/design/roleAuthority/UIRoleTreeUI.java
@@ -1,6 +1,5 @@
 package com.fr.design.roleAuthority;
 
-import com.fr.common.inputevent.InputEventBaseOnOS;
 import com.fr.design.gui.itree.UITreeUI;
 
 import javax.swing.tree.TreePath;
@@ -16,7 +15,7 @@ import java.awt.event.MouseEvent;
 public class UIRoleTreeUI extends UITreeUI {
 
     protected void selectPathForEvent(TreePath path, MouseEvent event) {    /* Adjust from the anchor point. */
-        if (InputEventBaseOnOS.isControlDown(event) && tree.isPathSelected(path)) {
+        if (event.isControlDown() && tree.isPathSelected(path)) {
             tree.removeSelectionPath(path);
         } else if (event.isShiftDown()) {
             tree.setAnchorSelectionPath(null);
diff --git a/designer_form/src/com/fr/design/designer/beans/models/SelectionModel.java b/designer_form/src/com/fr/design/designer/beans/models/SelectionModel.java
index 2fde27019..13eaa18ac 100644
--- a/designer_form/src/com/fr/design/designer/beans/models/SelectionModel.java
+++ b/designer_form/src/com/fr/design/designer/beans/models/SelectionModel.java
@@ -1,6 +1,5 @@
 package com.fr.design.designer.beans.models;
 
-import com.fr.common.inputevent.InputEventBaseOnOS;
 import com.fr.design.designer.beans.AdapterBus;
 import com.fr.design.designer.beans.LayoutAdapter;
 import com.fr.design.designer.beans.events.DesignerEvent;
@@ -62,7 +61,7 @@ public class SelectionModel {
      * @param e 鼠标事件
      */
     public void selectACreatorAtMouseEvent(MouseEvent e) {
-        if (!InputEventBaseOnOS.isControlDown(e) && !e.isShiftDown()) {
+        if (!e.isControlDown() && !e.isShiftDown()) {
             // 如果Ctrl或者Shift键盘没有按下，则清除已经选择的组件
             selection.reset();
         }
@@ -373,7 +372,7 @@ public class SelectionModel {
 
     public Direction getDirectionAt(MouseEvent e) {
         Direction dir;
-        if (InputEventBaseOnOS.isControlDown(e) || e.isShiftDown()) {
+        if (e.isControlDown() || e.isShiftDown()) {
             XCreator creator = designer.getComponentAt(e.getX(), e.getY(), selection.getSelectedCreators());
             if (creator != designer.getRootComponent() && selection.addedable(creator)) {
                 return Location.add;