1package android.inputmethodservice; 2 3import com.android.internal.os.HandlerCaller; 4import com.android.internal.view.IInputMethodCallback; 5import com.android.internal.view.IInputMethodSession; 6 7import android.content.Context; 8import android.graphics.Rect; 9import android.os.Bundle; 10import android.os.Message; 11import android.os.RemoteException; 12import android.util.Log; 13import android.view.KeyEvent; 14import android.view.MotionEvent; 15import android.view.inputmethod.CompletionInfo; 16import android.view.inputmethod.ExtractedText; 17import android.view.inputmethod.InputMethodSession; 18import android.view.inputmethod.EditorInfo; 19 20class IInputMethodSessionWrapper extends IInputMethodSession.Stub 21 implements HandlerCaller.Callback { 22 private static final String TAG = "InputMethodWrapper"; 23 private static final boolean DEBUG = false; 24 25 private static final int DO_FINISH_INPUT = 60; 26 private static final int DO_DISPLAY_COMPLETIONS = 65; 27 private static final int DO_UPDATE_EXTRACTED_TEXT = 67; 28 private static final int DO_DISPATCH_KEY_EVENT = 70; 29 private static final int DO_DISPATCH_TRACKBALL_EVENT = 80; 30 private static final int DO_UPDATE_SELECTION = 90; 31 private static final int DO_UPDATE_CURSOR = 95; 32 private static final int DO_APP_PRIVATE_COMMAND = 100; 33 private static final int DO_TOGGLE_SOFT_INPUT = 105; 34 35 final HandlerCaller mCaller; 36 final InputMethodSession mInputMethodSession; 37 38 // NOTE: we should have a cache of these. 39 static class InputMethodEventCallbackWrapper implements InputMethodSession.EventCallback { 40 final IInputMethodCallback mCb; 41 InputMethodEventCallbackWrapper(IInputMethodCallback cb) { 42 mCb = cb; 43 } 44 public void finishedEvent(int seq, boolean handled) { 45 try { 46 mCb.finishedEvent(seq, handled); 47 } catch (RemoteException e) { 48 } 49 } 50 } 51 52 public IInputMethodSessionWrapper(Context context, 53 InputMethodSession inputMethodSession) { 54 mCaller = new HandlerCaller(context, this); 55 mInputMethodSession = inputMethodSession; 56 } 57 58 public InputMethodSession getInternalInputMethodSession() { 59 return mInputMethodSession; 60 } 61 62 public void executeMessage(Message msg) { 63 switch (msg.what) { 64 case DO_FINISH_INPUT: 65 mInputMethodSession.finishInput(); 66 return; 67 case DO_DISPLAY_COMPLETIONS: 68 mInputMethodSession.displayCompletions((CompletionInfo[])msg.obj); 69 return; 70 case DO_UPDATE_EXTRACTED_TEXT: 71 mInputMethodSession.updateExtractedText(msg.arg1, 72 (ExtractedText)msg.obj); 73 return; 74 case DO_DISPATCH_KEY_EVENT: { 75 HandlerCaller.SomeArgs args = (HandlerCaller.SomeArgs)msg.obj; 76 mInputMethodSession.dispatchKeyEvent(msg.arg1, 77 (KeyEvent)args.arg1, 78 new InputMethodEventCallbackWrapper( 79 (IInputMethodCallback)args.arg2)); 80 mCaller.recycleArgs(args); 81 return; 82 } 83 case DO_DISPATCH_TRACKBALL_EVENT: { 84 HandlerCaller.SomeArgs args = (HandlerCaller.SomeArgs)msg.obj; 85 mInputMethodSession.dispatchTrackballEvent(msg.arg1, 86 (MotionEvent)args.arg1, 87 new InputMethodEventCallbackWrapper( 88 (IInputMethodCallback)args.arg2)); 89 mCaller.recycleArgs(args); 90 return; 91 } 92 case DO_UPDATE_SELECTION: { 93 HandlerCaller.SomeArgs args = (HandlerCaller.SomeArgs)msg.obj; 94 mInputMethodSession.updateSelection(args.argi1, args.argi2, 95 args.argi3, args.argi4, args.argi5, args.argi6); 96 mCaller.recycleArgs(args); 97 return; 98 } 99 case DO_UPDATE_CURSOR: { 100 mInputMethodSession.updateCursor((Rect)msg.obj); 101 return; 102 } 103 case DO_APP_PRIVATE_COMMAND: { 104 HandlerCaller.SomeArgs args = (HandlerCaller.SomeArgs)msg.obj; 105 mInputMethodSession.appPrivateCommand((String)args.arg1, 106 (Bundle)args.arg2); 107 mCaller.recycleArgs(args); 108 return; 109 } 110 case DO_TOGGLE_SOFT_INPUT: { 111 mInputMethodSession.toggleSoftInput(msg.arg1, msg.arg2); 112 return; 113 } 114 } 115 Log.w(TAG, "Unhandled message code: " + msg.what); 116 } 117 118 public void finishInput() { 119 mCaller.executeOrSendMessage(mCaller.obtainMessage(DO_FINISH_INPUT)); 120 } 121 122 public void displayCompletions(CompletionInfo[] completions) { 123 mCaller.executeOrSendMessage(mCaller.obtainMessageO( 124 DO_DISPLAY_COMPLETIONS, completions)); 125 } 126 127 public void updateExtractedText(int token, ExtractedText text) { 128 mCaller.executeOrSendMessage(mCaller.obtainMessageIO( 129 DO_UPDATE_EXTRACTED_TEXT, token, text)); 130 } 131 132 public void dispatchKeyEvent(int seq, KeyEvent event, IInputMethodCallback callback) { 133 mCaller.executeOrSendMessage(mCaller.obtainMessageIOO(DO_DISPATCH_KEY_EVENT, seq, 134 event, callback)); 135 } 136 137 public void dispatchTrackballEvent(int seq, MotionEvent event, IInputMethodCallback callback) { 138 mCaller.executeOrSendMessage(mCaller.obtainMessageIOO(DO_DISPATCH_TRACKBALL_EVENT, seq, 139 event, callback)); 140 } 141 142 public void updateSelection(int oldSelStart, int oldSelEnd, 143 int newSelStart, int newSelEnd, int candidatesStart, int candidatesEnd) { 144 mCaller.executeOrSendMessage(mCaller.obtainMessageIIIIII(DO_UPDATE_SELECTION, 145 oldSelStart, oldSelEnd, newSelStart, newSelEnd, 146 candidatesStart, candidatesEnd)); 147 } 148 149 public void updateCursor(Rect newCursor) { 150 mCaller.executeOrSendMessage(mCaller.obtainMessageO(DO_UPDATE_CURSOR, 151 newCursor)); 152 } 153 154 public void appPrivateCommand(String action, Bundle data) { 155 mCaller.executeOrSendMessage(mCaller.obtainMessageOO(DO_APP_PRIVATE_COMMAND, action, data)); 156 } 157 158 public void toggleSoftInput(int showFlags, int hideFlags) { 159 mCaller.executeOrSendMessage(mCaller.obtainMessageII(DO_TOGGLE_SOFT_INPUT, showFlags, hideFlags)); 160 } 161} 162