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 1327b2fded9..c2ebc03fcc1 100644
--- a/src/java.desktop/share/classes/java/awt/Container.java
+++ b/src/java.desktop/share/classes/java/awt/Container.java
@@ -25,6 +25,7 @@
 
 package java.awt;
 
+import java.awt.Point;
 import java.awt.dnd.DropTarget;
 import java.awt.event.AWTEventListener;
 import java.awt.event.ComponentEvent;
@@ -682,6 +683,14 @@ public class Container extends Component {
         }
     }
 
+    /**
+     * fix fcitx position
+     * @return Point
+     */
+    public Point getPeerLocationOnScreen(){
+        return peer.getLocationOnScreen();
+    }
+
     /**
      * 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 ecc9342f05a..eea39c9e03a 100644
--- a/src/java.desktop/share/classes/javax/swing/JTextArea.java
+++ b/src/java.desktop/share/classes/javax/swing/JTextArea.java
@@ -562,6 +562,14 @@ public class JTextArea extends JTextComponent {
         return rowHeight;
     }
 
+    /**
+     * fix fcitx position
+     * @return FontMetrics
+     */
+    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 3abe09d0565..50dc549bdba 100644
--- a/src/java.desktop/share/classes/javax/swing/JTextField.java
+++ b/src/java.desktop/share/classes/javax/swing/JTextField.java
@@ -427,6 +427,14 @@ public class JTextField extends JTextComponent implements SwingConstants {
         return columnWidth;
     }
 
+    /**
+     * fix fcitx position
+     * @return FontMetrics
+     */
+    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 bb955dc5089..7c42e2aa685 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 +252,23 @@ public class InputContext extends java.awt.im.InputContext
             focusLost((Component) event.getSource(), ((FocusEvent) event).isTemporary());
             break;
 
+        case MouseEvent.MOUSE_RELEASED:
+            if (((Component) event.getSource()).getCursor().getType() == Cursor.TEXT_CURSOR) {
+                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:
+            transCaretPositionToXIM((Component) event.getSource());
+            break;
+
             // fall through
 
         default:
@@ -360,6 +373,46 @@ 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;
+                }
+            }
+        }
+    }
+
     /**
      * 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 4244812ceb0..e1e8eff44d3 100644
--- a/src/java.desktop/unix/classes/sun/awt/X11/XInputMethod.java
+++ b/src/java.desktop/unix/classes/sun/awt/X11/XInputMethod.java
@@ -28,12 +28,26 @@ 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.awt.GraphicsDevice;
+import java.awt.GraphicsEnvironment;
+
+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.awt.X11GraphicsDevice;
 
 import sun.util.logging.PlatformLogger;
 
@@ -45,8 +59,13 @@ import sun.util.logging.PlatformLogger;
 public class XInputMethod extends X11InputMethod {
     private static final PlatformLogger log = PlatformLogger.getLogger("sun.awt.X11.XInputMethod");
 
+    private int scale = -1;
+
     public XInputMethod() throws AWTException {
         super();
+        GraphicsDevice device = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
+        if (device instanceof X11GraphicsDevice)
+            scale = ((X11GraphicsDevice) device).getScaleFactor();
     }
 
     public void setInputMethodContext(InputMethodContext context) {
@@ -86,15 +105,29 @@ public class XInputMethod extends X11InputMethod {
 
     private static volatile long xicFocus = 0;
 
+    /**
+     * fix fcitx position
+     */
+    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);
+    }
+
     protected void setXICFocus(ComponentPeer peer,
                                     boolean value, boolean active) {
         if (peer == null) {
             return;
         }
         xicFocus = ((XComponentPeer)peer).getContentWindow();
+        int[] result = getOffXYRelateToFrame(peer ,value);
         setXICFocusNative(((XComponentPeer)peer).getContentWindow(),
                           value,
-                          active);
+                          active,
+                          result);
     }
 
     public static long getXICFocus() {
@@ -133,6 +166,74 @@ public class XInputMethod extends X11InputMethod {
         return null;
     }
 
+    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");
+                    Object myPoint = point.get(locations[0]);
+                    if (myPoint instanceof Point) {
+                        // convert to Point
+                        Point p = (Point) myPoint;
+                        caret_x = p.x;
+                        caret_y = p.y;
+                    } else if (myPoint instanceof Point2D) {
+                        // convert to Point2D.Double
+                        Point2D.Double pd = (Point2D.Double) myPoint;
+                        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.getPeerLocationOnScreen().x + caret_x, point.y - c.getPeerLocationOnScreen().y + font_height + caret_y};
+                    if (scale > 1) {
+                        result[0] *= scale;
+                        result[1] *= scale;
+                    }
+                }
+
+                return result;
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+        return result;
+    }
+
     /*
      * Subclasses should override disposeImpl() instead of dispose(). Client
      * code should always invoke dispose(), never disposeImpl().
@@ -253,6 +354,6 @@ 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 d9bed439688..623af69478e 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;
@@ -57,6 +58,11 @@ public abstract class X11InputMethod extends X11InputMethodBase {
         super();
     }
 
+    /**
+     * fix fcitx position
+     */
+    public abstract void setXICTextCursorOffXY(ComponentPeer peer);
+
     /**
      * Reset the composition state to the current composition state.
      */
@@ -380,6 +386,27 @@ 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 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 e63741f583e..55d847b98ac 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
@@ -434,13 +434,17 @@ 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);
 }
 
 /*
@@ -1519,7 +1523,8 @@ Java_sun_awt_X11_XInputMethod_setXICFocusNative(JNIEnv *env,
                                                 jobject this,
                                                 jlong w,
                                                 jboolean req,
-                                                jboolean active)
+                                                jboolean active,
+                                                jintArray arr)
 {
     X11InputMethodData *pX11IMData;
     AWT_LOCK();
@@ -1540,7 +1545,17 @@ 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;