idea.patch

diff --git a/src/java.desktop/share/classes/java/awt/Container.java b/src/java.desktop/share/classes/java/awt/Container.java
index 1a6163eb4..88f3b8d04 100644
--- a/src/java.desktop/share/classes/java/awt/Container.java
+++ b/src/java.desktop/share/classes/java/awt/Container.java
@@ -678,6 +678,10 @@ public class Container extends Component {
         }
     }
 
+    public ComponentPeer getPeer(){
+        return peer;
+    }
+
     /**
      * Detects whether or not remove from current parent and adding to new parent requires call of
      * removeNotify on the component. Since removeNotify destroys native window this might (not)
diff --git a/src/java.desktop/share/classes/javax/swing/JTextArea.java b/src/java.desktop/share/classes/javax/swing/JTextArea.java
index d64fa0272..ccf7dceca 100644
--- a/src/java.desktop/share/classes/javax/swing/JTextArea.java
+++ b/src/java.desktop/share/classes/javax/swing/JTextArea.java
@@ -547,7 +547,10 @@ public class JTextArea extends JTextComponent {
         }
         return rowHeight;
     }
-
+    
+    public FontMetrics getFontMetrics() {
+        return getFontMetrics(getFont());
+    }
     /**
      * Returns the number of columns in the TextArea.
      *
diff --git a/src/java.desktop/share/classes/javax/swing/JTextField.java b/src/java.desktop/share/classes/javax/swing/JTextField.java
index b8e3ffe06..3bfe3cae1 100644
--- a/src/java.desktop/share/classes/javax/swing/JTextField.java
+++ b/src/java.desktop/share/classes/javax/swing/JTextField.java
@@ -409,7 +409,11 @@ public class JTextField extends JTextComponent implements SwingConstants {
         }
         return columnWidth;
     }
-
+    
+    public FontMetrics getFontMetrics() {
+        return getFontMetrics(getFont());
+    }
+    
     /**
      * Returns the preferred size <code>Dimensions</code> needed for this
      * <code>TextField</code>.  If a non-zero number of columns has been
diff --git a/src/java.desktop/share/classes/sun/awt/im/InputContext.java b/src/java.desktop/share/classes/sun/awt/im/InputContext.java
index ad9d71be7..3d437ae8a 100644
--- a/src/java.desktop/share/classes/sun/awt/im/InputContext.java
+++ b/src/java.desktop/share/classes/sun/awt/im/InputContext.java
@@ -28,6 +28,7 @@ package sun.awt.im;
 import java.awt.AWTEvent;
 import java.awt.AWTKeyStroke;
 import java.awt.Component;
+import java.awt.Cursor;
 import java.awt.EventQueue;
 import java.awt.Frame;
 import java.awt.Rectangle;
@@ -39,6 +40,7 @@ import java.awt.event.FocusEvent;
 import java.awt.event.InputEvent;
 import java.awt.event.InputMethodEvent;
 import java.awt.event.KeyEvent;
+import java.awt.event.MouseEvent;
 import java.awt.event.WindowEvent;
 import java.awt.event.WindowListener;
 import java.awt.im.InputMethodRequests;
@@ -54,6 +56,7 @@ import java.util.prefs.BackingStoreException;
 import java.util.prefs.Preferences;
 import sun.util.logging.PlatformLogger;
 import sun.awt.SunToolkit;
+import sun.awt.X11InputMethod;
 
 /**
  * This InputContext class contains parts of the implementation of
@@ -249,13 +252,26 @@ public class InputContext extends java.awt.im.InputContext
             focusLost((Component) event.getSource(), ((FocusEvent) event).isTemporary());
             break;
 
+        case MouseEvent.MOUSE_RELEASED:
+            if(checkTextCursor((Component)event.getSource())) {
+                // focusGained((Component) event.getSource());
+                transCaretPositionToXIM((Component)event.getSource());
+                break;
+            }
+
         case KeyEvent.KEY_PRESSED:
-            if (checkInputMethodSelectionKey((KeyEvent)event)) {
+            if (event instanceof KeyEvent && checkInputMethodSelectionKey((KeyEvent)event)) {
                 // pop up the input method selection menu
                 InputMethodManager.getInstance().notifyChangeRequestByHotKey((Component)event.getSource());
                 break;
             }
 
+        case KeyEvent.KEY_RELEASED:   
+            if (event instanceof KeyEvent && checkDirectionKey((KeyEvent)event)) {
+                transCaretPositionToXIM((Component) event.getSource());
+                break;
+            }
+
             // fall through
 
         default:
@@ -359,7 +375,65 @@ public class InputContext extends java.awt.im.InputContext
             }
         }
     }
-
+    /**
+     * fix fcitx position
+     */
+    private void transCaretPositionToXIM(Component source) {
+        synchronized (source.getTreeLock()) {
+            synchronized (this) {
+                if ("sun.awt.im.CompositionArea".equals(source.getClass().getName())) {
+                    // no special handling for this one
+                } else if (getComponentWindow(source) instanceof InputMethodWindow) {
+                    // no special handling for this one either
+                } else {
+                    if (!source.isDisplayable()) {
+                        // Component is being disposed
+                        return;
+                    }
+                    currentClientComponent = source;
+                }
+                awtFocussedComponent = source;
+                if (inputMethod != null && inputMethod instanceof X11InputMethod) {
+                    ((X11InputMethod)inputMethod).setXICTextCursorPosition(source);
+                }
+                InputMethodContext inputContext = ((InputMethodContext)this);
+                if (!inputContext.isCompositionAreaVisible()) {
+                      InputMethodRequests req = source.getInputMethodRequests();
+                      if (req != null && inputContext.useBelowTheSpotInput()) {
+                          inputContext.setCompositionAreaUndecorated(true);
+                      } else {
+                          inputContext.setCompositionAreaUndecorated(false);
+                      }
+                }
+                // restores the composition area if it was set to invisible
+                // when focus got lost
+                if (compositionAreaHidden == true) {
+                    ((InputMethodContext)this).setCompositionAreaVisible(true);
+                    compositionAreaHidden = false;
+                }
+                
+            }
+        }
+    }
+    /**
+     * fix fcitx position
+     */
+    private boolean checkDirectionKey(KeyEvent event) {
+        // if (event.getKeyCode() >= 37 && event.getKeyCode() <=40) {
+        //     return true;
+        // } else {
+        //     return false;
+        // }
+        return true;
+    }
+    /**
+     * fix fcitx position
+     */
+    private boolean checkTextCursor(Component source) {
+        if(source.getCursor().getType()==Cursor.TEXT_CURSOR)
+            return true;
+        return false;
+    }
     /**
      * Activates the current input method of this input context, and grabs
      * the composition area for use by this input context.
diff --git a/src/java.desktop/unix/classes/sun/awt/X11/XInputMethod.java b/src/java.desktop/unix/classes/sun/awt/X11/XInputMethod.java
index 07c1334b8..01d5910de 100644
--- a/src/java.desktop/unix/classes/sun/awt/X11/XInputMethod.java
+++ b/src/java.desktop/unix/classes/sun/awt/X11/XInputMethod.java
@@ -28,15 +28,27 @@ package sun.awt.X11;
 import java.awt.AWTException;
 import java.awt.Component;
 import java.awt.Container;
+import java.awt.geom.Point2D;
+import java.awt.FontMetrics;
+import java.awt.Point;
 import java.awt.Rectangle;
 import java.awt.im.spi.InputMethodContext;
 import java.awt.peer.ComponentPeer;
 
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+import javax.swing.JTextArea;
+import javax.swing.JTextField;
+import javax.swing.text.JTextComponent;
+
 import sun.awt.AWTAccessor;
 import sun.awt.X11InputMethod;
 
 import sun.util.logging.PlatformLogger;
 
+
 /**
  * Input Method Adapter for XIM (without Motif)
  *
@@ -83,8 +95,20 @@ public class XInputMethod extends X11InputMethod {
             return 0;
         return releaseXICNative(pData);
     }
-
+    
+    
     private static volatile long xicFocus = 0;
+    
+    public void setXICTextCursorOffXY(ComponentPeer peer) {
+    
+        if (peer == null) {
+            return;
+        }
+        xicFocus = ((XComponentPeer)peer).getContentWindow();
+        int[] result = getOffXYRelateToFrame(peer ,true);
+        setXICFocusNative(((XComponentPeer)peer).getContentWindow(),true,true,result);
+        // setXICTextCursorOffXYNative(((XComponentPeer)peer).getContentWindow(),result);
+    }
 
     protected void setXICFocus(ComponentPeer peer,
                                     boolean value, boolean active) {
@@ -92,9 +116,11 @@ public class XInputMethod extends X11InputMethod {
             return;
         }
         xicFocus = ((XComponentPeer)peer).getContentWindow();
+        int[] result = getOffXYRelateToFrame(peer ,value);
         setXICFocusNative(((XComponentPeer)peer).getContentWindow(),
                           value,
-                          active);
+                          active,
+                          result);
     }
 
     public static long getXICFocus() {
@@ -156,6 +182,71 @@ public class XInputMethod extends X11InputMethod {
         return peer.getContentWindow();
     }
 
+    protected int[] getOffXYRelateToFrame(ComponentPeer peer, boolean value)  {
+        int[] result = null;
+        if(value && this.awtFocussedComponent!=null && this.awtFocussedComponent instanceof JTextComponent){
+            try {
+                Method method_getFontMetrics = null;
+                Method method_getEditor = null;
+                FontMetrics font_metrics = null;
+                Object editor = null;
+                int font_height = 0;
+                int caret_x = 0;
+                int caret_y = 0;
+                if(this.awtFocussedComponent instanceof JTextArea || this.awtFocussedComponent instanceof JTextField){
+                    method_getFontMetrics = this.awtFocussedComponent.getClass().getMethod("getFontMetrics");
+                    font_metrics = (FontMetrics)method_getFontMetrics.invoke(this.awtFocussedComponent);
+                    font_height = font_metrics.getHeight();
+                    JTextComponent jc = (JTextComponent)this.awtFocussedComponent;
+                    if( jc.getCaret().getMagicCaretPosition() != null) {
+                        caret_x = jc.getCaret().getMagicCaretPosition().x;
+                        caret_y = jc.getCaret().getMagicCaretPosition().y;
+                    }
+                }else {
+                    method_getEditor = this.awtFocussedComponent.getClass().getMethod("getEditor");
+
+                    editor = method_getEditor.invoke(this.awtFocussedComponent);
+        
+                    method_getFontMetrics = editor.getClass().getMethod("getFontMetrics",int.class);
+                    font_metrics = (FontMetrics)method_getFontMetrics.invoke(editor, 0);
+                    font_height = font_metrics.getHeight();
+                    Method getCaretLocations = editor.getClass().getMethod("getCaretLocations", boolean.class);
+                    Object[] locations = (Object[])getCaretLocations.invoke(editor, false);
+                    Field point = locations[0].getClass().getField("myPoint");
+                    Point2D.Double pd = (Point2D.Double)point.get(locations[0]);
+                    caret_x = (int)pd.x;
+                    caret_y = (int)pd.y;
+                }
+                
+
+                Method method_getLocationOnScreen = this.awtFocussedComponent.getClass().getMethod("getLocationOnScreen");
+                
+                Point point = (Point)method_getLocationOnScreen.invoke(this.awtFocussedComponent);
+
+                Method method_getNativeContainer = Component.class.getDeclaredMethod("getNativeContainer");
+                method_getNativeContainer.setAccessible(true);
+                Container c = (Container)method_getNativeContainer.invoke(awtFocussedComponent);
+                if(c!=null)
+                    result = new int[]{point.x - c.getPeer().getLocationOnScreen().x + caret_x, point.y - c.getPeer().getLocationOnScreen().y + font_height + caret_y};
+
+                return result;
+            } catch (IllegalAccessException e) {
+                e.printStackTrace();
+            } catch (IllegalArgumentException e) {
+                e.printStackTrace();
+            } catch (InvocationTargetException e) {
+                e.printStackTrace();
+            } catch (NoSuchMethodException e) {
+                e.printStackTrace();
+            } catch (SecurityException e) {
+                e.printStackTrace();
+            } catch(NoSuchFieldException e) {
+                e.printStackTrace();
+            }
+        }
+        return result;
+    }
+
     /*
      * Native methods
      */
@@ -164,6 +255,6 @@ public class XInputMethod extends X11InputMethod {
     private native boolean recreateXICNative(long window, long px11data, int ctxid);
     private native int releaseXICNative(long px11data);
     private native void setXICFocusNative(long window,
-                                    boolean value, boolean active);
+                                    boolean value, boolean active, int[] offxy);
     private native void adjustStatusWindow(long window);
 }
diff --git a/src/java.desktop/unix/classes/sun/awt/X11InputMethod.java b/src/java.desktop/unix/classes/sun/awt/X11InputMethod.java
index d9c45ed97..834164ad8 100644
--- a/src/java.desktop/unix/classes/sun/awt/X11InputMethod.java
+++ b/src/java.desktop/unix/classes/sun/awt/X11InputMethod.java
@@ -33,6 +33,7 @@ import java.awt.AWTException;
 import java.awt.event.InputMethodEvent;
 import java.awt.font.TextAttribute;
 import java.awt.font.TextHitInfo;
+import java.awt.Component;
 import java.awt.peer.ComponentPeer;
 import java.text.AttributedString;
 import java.util.Map;
@@ -56,6 +57,10 @@ public abstract class X11InputMethod extends X11InputMethodBase {
     public X11InputMethod() throws AWTException {
         super();
     }
+    /**
+     * fix fcitx position
+     */
+    public abstract void setXICTextCursorOffXY(ComponentPeer peer);
 
     /**
      * Reset the composition state to the current composition state.
@@ -380,6 +385,30 @@ public abstract class X11InputMethod extends X11InputMethodBase {
         }
     }
 
+    /**
+     * fix fcitx position
+     */
+    public synchronized void setXICTextCursorPosition(Component component){
+        if (component == null) {
+            return;
+        }
+        if (isActive) {
+            // deactivate/activate are being suppressed during a focus change -
+            // this may happen when an input method window is made visible
+            // boolean ac = haveActiveClient(); already set true in awt_InputMethod.c
+            setXICTextCursorOffXY(getPeer(awtFocussedComponent));
+
+        }
+        awtFocussedComponent = component;    
+        // ComponentPeer lastXICFocussedComponentPeer = null;
+        // if (lastXICFocussedComponent != null) {
+        //     lastXICFocussedComponentPeer = getPeer(lastXICFocussedComponent);
+        //  }
+        ComponentPeer awtFocussedComponentPeer = getPeer(awtFocussedComponent);
+        if(awtFocussedComponent !=null )
+            setXICTextCursorOffXY(awtFocussedComponentPeer);
+    }
+
     protected abstract boolean recreateXIC(int ctxid);
     protected abstract int releaseXIC();
     private static native boolean recreateX11InputMethod();
diff --git a/src/java.desktop/unix/native/libawt_xawt/awt/awt_InputMethod.c b/src/java.desktop/unix/native/libawt_xawt/awt/awt_InputMethod.c
index 847c44b52..c619d3773 100644
--- a/src/java.desktop/unix/native/libawt_xawt/awt/awt_InputMethod.c
+++ b/src/java.desktop/unix/native/libawt_xawt/awt/awt_InputMethod.c
@@ -436,13 +436,17 @@ setXICFocus(XIC ic, unsigned short req)
  * Sets the focus window to the given XIC.
  */
 static void
-setXICWindowFocus(XIC ic, Window w)
+setXICWindowFocus(XIC ic, Window w, int arr[2])
 {
     if (ic == NULL) {
         (void)fprintf(stderr, "Couldn't find X Input Context\n");
         return;
     }
-    (void) XSetICValues(ic, XNFocusWindow, w, NULL);
+    XPoint spot;
+    spot.x = arr[0];
+    spot.y = arr[1];
+    XVaNestedList xy = (XVaNestedList)XVaCreateNestedList(0, XNSpotLocation, &spot, NULL);
+    (void) XSetICValues(ic, XNFocusWindow, w, XNPreeditAttributes, xy, NULL);
 }
 
 /*
@@ -1468,7 +1472,8 @@ Java_sun_awt_X11_XInputMethod_setXICFocusNative(JNIEnv *env,
                                                 jobject this,
                                                 jlong w,
                                                 jboolean req,
-                                                jboolean active)
+                                                jboolean active,
+                                                jintArray arr)
 {
     X11InputMethodData *pX11IMData;
     AWT_LOCK();
@@ -1489,7 +1494,17 @@ Java_sun_awt_X11_XInputMethod_setXICFocusNative(JNIEnv *env,
          * On Solaris2.6, setXICWindowFocus() has to be invoked
          * before setting focus.
          */
-        setXICWindowFocus(pX11IMData->current_ic, w);
+        int positions[2] = {100,50};
+        if (arr)
+        {
+            int length = (*env)->GetArrayLength(env,arr);
+            int *addArr = (*env)->GetIntArrayElements(env, arr, NULL);      
+            for (int i= 0; i < length; ++i) {
+                positions[i] = *(addArr + i);
+            }
+            (*env)->ReleaseIntArrayElements(env, arr, addArr, 0);
+        }
+        setXICWindowFocus(pX11IMData->current_ic, w, positions);
         setXICFocus(pX11IMData->current_ic, req);
         currentX11InputMethodInstance = pX11IMData->x11inputmethod;
         currentFocusWindow =  w;