| /* |
| * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| |
| package sun.awt.windows; |
| |
| import java.awt.*; |
| import java.awt.peer.*; |
| import java.awt.event.*; |
| import java.awt.im.*; |
| import java.awt.im.spi.InputMethodContext; |
| import java.awt.font.*; |
| import java.text.*; |
| import java.text.AttributedCharacterIterator.Attribute; |
| import java.lang.Character.Subset; |
| import java.lang.Character.UnicodeBlock; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Locale; |
| import java.util.Map; |
| |
| import sun.awt.AWTAccessor; |
| import sun.awt.AWTAccessor.ComponentAccessor; |
| import sun.awt.im.InputMethodAdapter; |
| |
| final class WInputMethod extends InputMethodAdapter |
| { |
| /** |
| * The input method context, which is used to dispatch input method |
| * events to the client component and to request information from |
| * the client component. |
| */ |
| private InputMethodContext inputContext; |
| |
| private Component awtFocussedComponent; |
| private WComponentPeer awtFocussedComponentPeer = null; |
| private WComponentPeer lastFocussedComponentPeer = null; |
| private boolean isLastFocussedActiveClient = false; |
| private boolean isActive; |
| private int context; |
| private boolean open; //default open status; |
| private int cmode; //default conversion mode; |
| private Locale currentLocale; |
| // indicate whether status window is hidden or not. |
| private boolean statusWindowHidden = false; |
| |
| // attribute definition in Win32 (in IMM.H) |
| public static final byte ATTR_INPUT = 0x00; |
| public static final byte ATTR_TARGET_CONVERTED = 0x01; |
| public static final byte ATTR_CONVERTED = 0x02; |
| public static final byte ATTR_TARGET_NOTCONVERTED = 0x03; |
| public static final byte ATTR_INPUT_ERROR = 0x04; |
| // cmode definition in Win32 (in IMM.H) |
| public static final int IME_CMODE_ALPHANUMERIC = 0x0000; |
| public static final int IME_CMODE_NATIVE = 0x0001; |
| public static final int IME_CMODE_KATAKANA = 0x0002; |
| public static final int IME_CMODE_LANGUAGE = 0x0003; |
| public static final int IME_CMODE_FULLSHAPE = 0x0008; |
| public static final int IME_CMODE_HANJACONVERT = 0x0040; |
| public static final int IME_CMODE_ROMAN = 0x0010; |
| |
| // flag values for endCompositionNative() behavior |
| private static final boolean COMMIT_INPUT = true; |
| private static final boolean DISCARD_INPUT = false; |
| |
| private static Map<TextAttribute,Object> [] highlightStyles; |
| |
| // Initialize highlight mapping table |
| static { |
| @SuppressWarnings({"rawtypes", "unchecked"}) |
| Map<TextAttribute,Object> styles[] = new Map[4]; |
| HashMap<TextAttribute,Object> map; |
| |
| // UNSELECTED_RAW_TEXT_HIGHLIGHT |
| map = new HashMap<>(1); |
| map.put(TextAttribute.INPUT_METHOD_UNDERLINE, TextAttribute.UNDERLINE_LOW_DOTTED); |
| styles[0] = Collections.unmodifiableMap(map); |
| |
| // SELECTED_RAW_TEXT_HIGHLIGHT |
| map = new HashMap<>(1); |
| map.put(TextAttribute.INPUT_METHOD_UNDERLINE, TextAttribute.UNDERLINE_LOW_GRAY); |
| styles[1] = Collections.unmodifiableMap(map); |
| |
| // UNSELECTED_CONVERTED_TEXT_HIGHLIGHT |
| map = new HashMap<>(1); |
| map.put(TextAttribute.INPUT_METHOD_UNDERLINE, TextAttribute.UNDERLINE_LOW_DOTTED); |
| styles[2] = Collections.unmodifiableMap(map); |
| |
| // SELECTED_CONVERTED_TEXT_HIGHLIGHT |
| map = new HashMap<>(4); |
| Color navyBlue = new Color(0, 0, 128); |
| map.put(TextAttribute.FOREGROUND, navyBlue); |
| map.put(TextAttribute.BACKGROUND, Color.white); |
| map.put(TextAttribute.SWAP_COLORS, TextAttribute.SWAP_COLORS_ON); |
| map.put(TextAttribute.INPUT_METHOD_UNDERLINE, TextAttribute.UNDERLINE_LOW_ONE_PIXEL); |
| styles[3] = Collections.unmodifiableMap(map); |
| |
| highlightStyles = styles; |
| } |
| |
| public WInputMethod() |
| { |
| context = createNativeContext(); |
| cmode = getConversionStatus(context); |
| open = getOpenStatus(context); |
| currentLocale = getNativeLocale(); |
| if (currentLocale == null) { |
| currentLocale = Locale.getDefault(); |
| } |
| } |
| |
| @Override |
| protected void finalize() throws Throwable |
| { |
| // Release the resources used by the native input context. |
| if (context!=0) { |
| destroyNativeContext(context); |
| context=0; |
| } |
| super.finalize(); |
| } |
| |
| @Override |
| public synchronized void setInputMethodContext(InputMethodContext context) { |
| inputContext = context; |
| } |
| |
| @Override |
| public void dispose() { |
| // Due to a memory management problem in Windows 98, we should retain |
| // the native input context until this object is finalized. So do |
| // nothing here. |
| } |
| |
| /** |
| * Returns null. |
| * |
| * @see java.awt.im.spi.InputMethod#getControlObject |
| */ |
| @Override |
| public Object getControlObject() { |
| return null; |
| } |
| |
| @Override |
| public boolean setLocale(Locale lang) { |
| return setLocale(lang, false); |
| } |
| |
| private boolean setLocale(Locale lang, boolean onActivate) { |
| Locale[] available = WInputMethodDescriptor.getAvailableLocalesInternal(); |
| for (int i = 0; i < available.length; i++) { |
| Locale locale = available[i]; |
| if (lang.equals(locale) || |
| // special compatibility rule for Japanese and Korean |
| locale.equals(Locale.JAPAN) && lang.equals(Locale.JAPANESE) || |
| locale.equals(Locale.KOREA) && lang.equals(Locale.KOREAN)) { |
| if (isActive) { |
| setNativeLocale(locale.toLanguageTag(), onActivate); |
| } |
| currentLocale = locale; |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public Locale getLocale() { |
| if (isActive) { |
| currentLocale = getNativeLocale(); |
| if (currentLocale == null) { |
| currentLocale = Locale.getDefault(); |
| } |
| } |
| return currentLocale; |
| } |
| |
| /** |
| * Implements InputMethod.setCharacterSubsets for Windows. |
| * |
| * @see java.awt.im.spi.InputMethod#setCharacterSubsets |
| */ |
| @Override |
| public void setCharacterSubsets(Subset[] subsets) { |
| if (subsets == null){ |
| setConversionStatus(context, cmode); |
| setOpenStatus(context, open); |
| return; |
| } |
| |
| // Use first subset only. Other subsets in array is ignored. |
| // This is restriction of Win32 implementation. |
| Subset subset1 = subsets[0]; |
| |
| Locale locale = getNativeLocale(); |
| int newmode; |
| |
| if (locale == null) { |
| return; |
| } |
| |
| if (locale.getLanguage().equals(Locale.JAPANESE.getLanguage())) { |
| if (subset1 == UnicodeBlock.BASIC_LATIN || subset1 == InputSubset.LATIN_DIGITS) { |
| setOpenStatus(context, false); |
| } else { |
| if (subset1 == UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS |
| || subset1 == InputSubset.KANJI |
| || subset1 == UnicodeBlock.HIRAGANA) |
| newmode = IME_CMODE_NATIVE | IME_CMODE_FULLSHAPE; |
| else if (subset1 == UnicodeBlock.KATAKANA) |
| newmode = IME_CMODE_NATIVE | IME_CMODE_KATAKANA| IME_CMODE_FULLSHAPE; |
| else if (subset1 == InputSubset.HALFWIDTH_KATAKANA) |
| newmode = IME_CMODE_NATIVE | IME_CMODE_KATAKANA; |
| else if (subset1 == InputSubset.FULLWIDTH_LATIN) |
| newmode = IME_CMODE_FULLSHAPE; |
| else |
| return; |
| setOpenStatus(context, true); |
| newmode |= (getConversionStatus(context)&IME_CMODE_ROMAN); // reserve ROMAN input mode |
| setConversionStatus(context, newmode); |
| } |
| } else if (locale.getLanguage().equals(Locale.KOREAN.getLanguage())) { |
| if (subset1 == UnicodeBlock.BASIC_LATIN || subset1 == InputSubset.LATIN_DIGITS) { |
| setOpenStatus(context, false); |
| } else { |
| if (subset1 == UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS |
| || subset1 == InputSubset.HANJA |
| || subset1 == UnicodeBlock.HANGUL_SYLLABLES |
| || subset1 == UnicodeBlock.HANGUL_JAMO |
| || subset1 == UnicodeBlock.HANGUL_COMPATIBILITY_JAMO) |
| newmode = IME_CMODE_NATIVE; |
| else if (subset1 == InputSubset.FULLWIDTH_LATIN) |
| newmode = IME_CMODE_FULLSHAPE; |
| else |
| return; |
| setOpenStatus(context, true); |
| setConversionStatus(context, newmode); |
| } |
| } else if (locale.getLanguage().equals(Locale.CHINESE.getLanguage())) { |
| if (subset1 == UnicodeBlock.BASIC_LATIN || subset1 == InputSubset.LATIN_DIGITS) { |
| setOpenStatus(context, false); |
| } else { |
| if (subset1 == UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS |
| || subset1 == InputSubset.TRADITIONAL_HANZI |
| || subset1 == InputSubset.SIMPLIFIED_HANZI) |
| newmode = IME_CMODE_NATIVE; |
| else if (subset1 == InputSubset.FULLWIDTH_LATIN) |
| newmode = IME_CMODE_FULLSHAPE; |
| else |
| return; |
| setOpenStatus(context, true); |
| setConversionStatus(context, newmode); |
| } |
| } |
| } |
| |
| @Override |
| public void dispatchEvent(AWTEvent e) { |
| if (e instanceof ComponentEvent) { |
| Component comp = ((ComponentEvent) e).getComponent(); |
| if (comp == awtFocussedComponent) { |
| if (awtFocussedComponentPeer == null || |
| awtFocussedComponentPeer.isDisposed()) { |
| awtFocussedComponentPeer = getNearestNativePeer(comp); |
| } |
| if (awtFocussedComponentPeer != null) { |
| handleNativeIMEEvent(awtFocussedComponentPeer, e); |
| } |
| } |
| } |
| } |
| |
| @Override |
| public void activate() { |
| boolean isAc = haveActiveClient(); |
| |
| // When the last focussed component peer is different from the |
| // current focussed component or if they are different client |
| // (active or passive), disable native IME for the old focussed |
| // component and enable for the new one. |
| if (lastFocussedComponentPeer != awtFocussedComponentPeer || |
| isLastFocussedActiveClient != isAc) { |
| if (lastFocussedComponentPeer != null) { |
| disableNativeIME(lastFocussedComponentPeer); |
| } |
| if (awtFocussedComponentPeer != null) { |
| enableNativeIME(awtFocussedComponentPeer, context, !isAc); |
| } |
| lastFocussedComponentPeer = awtFocussedComponentPeer; |
| isLastFocussedActiveClient = isAc; |
| } |
| isActive = true; |
| if (currentLocale != null) { |
| setLocale(currentLocale, true); |
| } |
| |
| /* If the status window or Windows language bar is turned off due to |
| native input method was switched to java input method, we |
| have to turn it on otherwise it is gone for good until next time |
| the user turns it on through Windows Control Panel. See details |
| from bug 6252674. |
| */ |
| if (statusWindowHidden) { |
| setStatusWindowVisible(awtFocussedComponentPeer, true); |
| statusWindowHidden = false; |
| } |
| |
| } |
| |
| @Override |
| public void deactivate(boolean isTemporary) |
| { |
| // Sync currentLocale with the Windows keyboard layout which might be changed |
| // by hot key |
| getLocale(); |
| |
| // Delay calling disableNativeIME until activate is called and the newly |
| // focussed component has a different peer as the last focussed component. |
| if (awtFocussedComponentPeer != null) { |
| lastFocussedComponentPeer = awtFocussedComponentPeer; |
| isLastFocussedActiveClient = haveActiveClient(); |
| } |
| isActive = false; |
| } |
| |
| /** |
| * Explicitly disable the native IME. Native IME is not disabled when |
| * deactivate is called. |
| */ |
| @Override |
| public void disableInputMethod() { |
| if (lastFocussedComponentPeer != null) { |
| disableNativeIME(lastFocussedComponentPeer); |
| lastFocussedComponentPeer = null; |
| isLastFocussedActiveClient = false; |
| } |
| } |
| |
| /** |
| * Returns a string with information about the windows input method, |
| * or null. |
| */ |
| @Override |
| public String getNativeInputMethodInfo() { |
| return getNativeIMMDescription(); |
| } |
| |
| /** |
| * @see sun.awt.im.InputMethodAdapter#stopListening |
| * This method is called when the input method is swapped out. |
| * Calling stopListening to give other input method the keybaord input |
| * focus. |
| */ |
| @Override |
| protected void stopListening() { |
| // Since the native input method is not disabled when deactivate is |
| // called, we need to call disableInputMethod to explicitly turn off the |
| // native IME. |
| disableInputMethod(); |
| } |
| |
| // implements sun.awt.im.InputMethodAdapter.setAWTFocussedComponent |
| @Override |
| protected void setAWTFocussedComponent(Component component) { |
| if (component == null) { |
| return; |
| } |
| WComponentPeer peer = getNearestNativePeer(component); |
| if (isActive) { |
| // deactivate/activate are being suppressed during a focus change - |
| // this may happen when an input method window is made visible |
| if (awtFocussedComponentPeer != null) { |
| disableNativeIME(awtFocussedComponentPeer); |
| } |
| if (peer != null) { |
| enableNativeIME(peer, context, !haveActiveClient()); |
| } |
| } |
| awtFocussedComponent = component; |
| awtFocussedComponentPeer = peer; |
| } |
| |
| // implements java.awt.im.spi.InputMethod.hideWindows |
| @Override |
| public void hideWindows() { |
| if (awtFocussedComponentPeer != null) { |
| /* Hide the native status window including the Windows language |
| bar if it is on. One typical senario this method |
| gets called is when the native input method is |
| switched to java input method, for example. |
| */ |
| setStatusWindowVisible(awtFocussedComponentPeer, false); |
| statusWindowHidden = true; |
| } |
| } |
| |
| /** |
| * @see java.awt.im.spi.InputMethod#removeNotify |
| */ |
| @Override |
| public void removeNotify() { |
| endCompositionNative(context, DISCARD_INPUT); |
| awtFocussedComponent = null; |
| awtFocussedComponentPeer = null; |
| } |
| |
| /** |
| * @see java.awt.Toolkit#mapInputMethodHighlight |
| */ |
| static Map<TextAttribute,?> mapInputMethodHighlight(InputMethodHighlight highlight) { |
| int index; |
| int state = highlight.getState(); |
| if (state == InputMethodHighlight.RAW_TEXT) { |
| index = 0; |
| } else if (state == InputMethodHighlight.CONVERTED_TEXT) { |
| index = 2; |
| } else { |
| return null; |
| } |
| if (highlight.isSelected()) { |
| index += 1; |
| } |
| return highlightStyles[index]; |
| } |
| |
| // see sun.awt.im.InputMethodAdapter.supportsBelowTheSpot |
| @Override |
| protected boolean supportsBelowTheSpot() { |
| return true; |
| } |
| |
| @Override |
| public void endComposition() |
| { |
| //right now the native endCompositionNative() just cancel |
| //the composition string, maybe a commtting is desired |
| endCompositionNative(context, |
| (haveActiveClient() ? COMMIT_INPUT : DISCARD_INPUT)); |
| } |
| |
| /** |
| * @see java.awt.im.spi.InputMethod#setCompositionEnabled(boolean) |
| */ |
| @Override |
| public void setCompositionEnabled(boolean enable) { |
| setOpenStatus(context, enable); |
| } |
| |
| /** |
| * @see java.awt.im.spi.InputMethod#isCompositionEnabled |
| */ |
| @Override |
| public boolean isCompositionEnabled() { |
| return getOpenStatus(context); |
| } |
| |
| public void sendInputMethodEvent(int id, long when, String text, |
| int[] clauseBoundary, String[] clauseReading, |
| int[] attributeBoundary, byte[] attributeValue, |
| int commitedTextLength, int caretPos, int visiblePos) |
| { |
| |
| AttributedCharacterIterator iterator = null; |
| |
| if (text!=null) { |
| |
| // construct AttributedString |
| AttributedString attrStr = new AttributedString(text); |
| |
| // set Language Information |
| attrStr.addAttribute(Attribute.LANGUAGE, |
| Locale.getDefault(), 0, text.length()); |
| |
| // set Clause and Reading Information |
| if (clauseBoundary!=null && clauseReading!=null && |
| clauseReading.length!=0 && clauseBoundary.length==clauseReading.length+1 && |
| clauseBoundary[0]==0 && clauseBoundary[clauseReading.length]==text.length() ) |
| { |
| for (int i=0; i<clauseBoundary.length-1; i++) { |
| attrStr.addAttribute(Attribute.INPUT_METHOD_SEGMENT, |
| new Annotation(null), clauseBoundary[i], clauseBoundary[i+1]); |
| attrStr.addAttribute(Attribute.READING, |
| new Annotation(clauseReading[i]), clauseBoundary[i], clauseBoundary[i+1]); |
| } |
| } else { |
| // if (clauseBoundary != null) |
| // System.out.println("Invalid clause information!"); |
| |
| attrStr.addAttribute(Attribute.INPUT_METHOD_SEGMENT, |
| new Annotation(null), 0, text.length()); |
| attrStr.addAttribute(Attribute.READING, |
| new Annotation(""), 0, text.length()); |
| } |
| |
| // set Hilight Information |
| if (attributeBoundary!=null && attributeValue!=null && |
| attributeValue.length!=0 && attributeBoundary.length==attributeValue.length+1 && |
| attributeBoundary[0]==0 && attributeBoundary[attributeValue.length]==text.length() ) |
| { |
| for (int i=0; i<attributeBoundary.length-1; i++) { |
| InputMethodHighlight highlight; |
| switch (attributeValue[i]) { |
| case ATTR_TARGET_CONVERTED: |
| highlight = InputMethodHighlight.SELECTED_CONVERTED_TEXT_HIGHLIGHT; |
| break; |
| case ATTR_CONVERTED: |
| highlight = InputMethodHighlight.UNSELECTED_CONVERTED_TEXT_HIGHLIGHT; |
| break; |
| case ATTR_TARGET_NOTCONVERTED: |
| highlight = InputMethodHighlight.SELECTED_RAW_TEXT_HIGHLIGHT; |
| break; |
| case ATTR_INPUT: |
| case ATTR_INPUT_ERROR: |
| default: |
| highlight = InputMethodHighlight.UNSELECTED_RAW_TEXT_HIGHLIGHT; |
| break; |
| } |
| attrStr.addAttribute(TextAttribute.INPUT_METHOD_HIGHLIGHT, |
| highlight, |
| attributeBoundary[i], attributeBoundary[i+1]); |
| } |
| } else { |
| // if (attributeBoundary != null) |
| // System.out.println("Invalid attribute information!"); |
| |
| attrStr.addAttribute(TextAttribute.INPUT_METHOD_HIGHLIGHT, |
| InputMethodHighlight.UNSELECTED_CONVERTED_TEXT_HIGHLIGHT, |
| 0, text.length()); |
| } |
| |
| // get iterator |
| iterator = attrStr.getIterator(); |
| |
| } |
| |
| Component source = getClientComponent(); |
| if (source == null) |
| return; |
| |
| InputMethodEvent event = new InputMethodEvent(source, |
| id, |
| when, |
| iterator, |
| commitedTextLength, |
| TextHitInfo.leading(caretPos), |
| TextHitInfo.leading(visiblePos)); |
| WToolkit.postEvent(WToolkit.targetToAppContext(source), event); |
| } |
| |
| public void inquireCandidatePosition() |
| { |
| Component source = getClientComponent(); |
| if (source == null) { |
| return; |
| } |
| // This call should return immediately just to cause |
| // InputMethodRequests.getTextLocation be called within |
| // AWT Event thread. Otherwise, a potential deadlock |
| // could happen. |
| Runnable r = new Runnable() { |
| @Override |
| public void run() { |
| int x = 0; |
| int y = 0; |
| Component client = getClientComponent(); |
| |
| if (client != null) { |
| if (haveActiveClient()) { |
| Rectangle rc = inputContext.getTextLocation(TextHitInfo.leading(0)); |
| x = rc.x; |
| y = rc.y + rc.height; |
| } else { |
| Point pt = client.getLocationOnScreen(); |
| Dimension size = client.getSize(); |
| x = pt.x; |
| y = pt.y + size.height; |
| } |
| } |
| |
| openCandidateWindow(awtFocussedComponentPeer, x, y); |
| } |
| }; |
| WToolkit.postEvent(WToolkit.targetToAppContext(source), |
| new InvocationEvent(source, r)); |
| } |
| |
| // java.awt.Toolkit#getNativeContainer() is not available |
| // from this package |
| private WComponentPeer getNearestNativePeer(Component comp) |
| { |
| if (comp==null) return null; |
| final ComponentAccessor acc = AWTAccessor.getComponentAccessor(); |
| ComponentPeer peer = acc.getPeer(comp); |
| if (peer==null) return null; |
| |
| while (peer instanceof java.awt.peer.LightweightPeer) { |
| comp = comp.getParent(); |
| if (comp==null) return null; |
| peer = acc.getPeer(comp); |
| if (peer==null) return null; |
| } |
| |
| if (peer instanceof WComponentPeer) |
| return (WComponentPeer)peer; |
| else |
| return null; |
| |
| } |
| |
| private native int createNativeContext(); |
| private native void destroyNativeContext(int context); |
| private native void enableNativeIME(WComponentPeer peer, int context, boolean useNativeCompWindow); |
| private native void disableNativeIME(WComponentPeer peer); |
| private native void handleNativeIMEEvent(WComponentPeer peer, AWTEvent e); |
| private native void endCompositionNative(int context, boolean flag); |
| private native void setConversionStatus(int context, int cmode); |
| private native int getConversionStatus(int context); |
| private native void setOpenStatus(int context, boolean flag); |
| private native boolean getOpenStatus(int context); |
| private native void setStatusWindowVisible(WComponentPeer peer, boolean visible); |
| private native String getNativeIMMDescription(); |
| static native Locale getNativeLocale(); |
| static native boolean setNativeLocale(String localeName, boolean onActivate); |
| private native void openCandidateWindow(WComponentPeer peer, int x, int y); |
| } |