Fix lint warnings in IInputConnectionWrapper

This is a clean-up CL of IInputConnectionWrapper with no behavior
change.

As a preparation to move IInputConnectionWrapper into

  com.android.internal.inputmethod

this CL cleans up all the existing lint warnings in this file.

There should be no behavior change in this CL.

Bug: 192412909
Test: presubmit
Change-Id: I215437cc4e45f369af56e3d42fdc2bdc6d353a4f

core/java/com/android/internal/view/IInputConnectionWrapper.java

@@ -50,6 +50,9 @@ import com.android.internal.inputmethod.InputConnectionProtoDumper;
 
 import java.lang.ref.WeakReference;
 
+/**
+ * Takes care of remote method invocations of {@link InputConnection} in the IME client side.
+ */
 public final class IInputConnectionWrapper extends IInputContext.Stub {
     private static final String TAG = "IInputConnectionWrapper";
     private static final boolean DEBUG = false;
@@ -78,6 +81,9 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         mServedView = new WeakReference<>(servedView);
     }
 
+    /**
+     * @return {@link InputConnection} to which incoming IPCs will be dispatched.
+     */
     @Nullable
     public InputConnection getInputConnection() {
         synchronized (mLock) {
@@ -99,6 +105,11 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         return mServedView.get();
     }
 
+    /**
+     * Called when this object needs to be permanently deactivated.
+     *
+     * <p>Multiple invocations will be simply ignored.</p>
+     */
     public void deactivate() {
         if (isFinished()) {
             // This is a small performance optimization.  Still only the 1st call of
@@ -136,6 +147,13 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
                 + "}";
     }
 
+    /**
+     * Called by {@link InputMethodManager} to dump the editor state.
+     *
+     * @param proto {@link ProtoOutputStream} to which the editor state should be dumped.
+     * @param fieldId the ID to be passed to
+     *                {@link DumpableInputConnection#dumpDebug(ProtoOutputStream, long)}.
+     */
     public void dumpDebug(ProtoOutputStream proto, long fieldId) {
         synchronized (mLock) {
             // Check that the call is initiated in the main thread of the current InputConnection
@@ -150,6 +168,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         }
     }
 
+    @Override
     public void getTextAfterCursor(int length, int flags, ICharSequenceResultCallback callback) {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#getTextAfterCursor");
@@ -180,6 +199,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void getTextBeforeCursor(int length, int flags, ICharSequenceResultCallback callback) {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#getTextBeforeCursor");
@@ -210,6 +230,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void getSelectedText(int flags, ICharSequenceResultCallback callback) {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#getSelectedText");
@@ -240,11 +261,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
-    /**
-     * Dispatches the request for retrieving surrounding text.
-     *
-     * <p>See {@link InputConnection#getSurroundingText(int, int, int)}.
-     */
+    @Override
     public void getSurroundingText(int beforeLength, int afterLength, int flags,
             ISurroundingTextResultCallback callback) {
         dispatch(() -> {
@@ -276,6 +293,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void getCursorCapsMode(int reqModes, IIntResultCallback callback) {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#getCursorCapsMode");
@@ -306,6 +324,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void getExtractedText(ExtractedTextRequest request, int flags,
             IExtractedTextResultCallback callback) {
         dispatch(() -> {
@@ -337,6 +356,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void commitText(CharSequence text, int newCursorPosition) {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#commitText");
@@ -353,6 +373,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void commitCompletion(CompletionInfo text) {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#commitCompletion");
@@ -369,6 +390,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void commitCorrection(CorrectionInfo info) {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#commitCorrection");
@@ -385,6 +407,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void setSelection(int start, int end) {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#setSelection");
@@ -401,6 +424,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void performEditorAction(int id) {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#performEditorAction");
@@ -417,6 +441,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void performContextMenuAction(int id) {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#performContextMenuAction");
@@ -433,6 +458,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void setComposingRegion(int start, int end) {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#setComposingRegion");
@@ -449,6 +475,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void setComposingText(CharSequence text, int newCursorPosition) {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#setComposingText");
@@ -465,6 +492,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void finishComposingText() {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#finishComposingText");
@@ -493,6 +521,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void sendKeyEvent(KeyEvent event) {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#sendKeyEvent");
@@ -509,6 +538,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void clearMetaKeyStates(int states) {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#clearMetaKeyStates");
@@ -525,6 +555,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void deleteSurroundingText(int beforeLength, int afterLength) {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#deleteSurroundingText");
@@ -541,6 +572,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void deleteSurroundingTextInCodePoints(int beforeLength, int afterLength) {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT,
@@ -558,6 +590,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void beginBatchEdit() {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#beginBatchEdit");
@@ -574,6 +607,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void endBatchEdit() {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#endBatchEdit");
@@ -590,11 +624,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
-    /**
-     * Dispatches the request for performing spell check.
-     *
-     * @see InputConnection#performSpellCheck()
-     */
+    @Override
     public void performSpellCheck() {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#performSpellCheck");
@@ -611,6 +641,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void performPrivateCommand(String action, Bundle data) {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#performPrivateCommand");
@@ -627,6 +658,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void requestCursorUpdates(int cursorUpdateMode, IBooleanResultCallback callback) {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#requestCursorUpdates");
@@ -651,7 +683,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
-    public void closeConnection() {
+    private void closeConnection() {
         dispatch(() -> {
             // Note that we do not need to worry about race condition here, because 1) mFinished is
             // updated only inside this block, and 2) the code here is running on a Handler hence we
@@ -684,6 +716,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
+    @Override
     public void commitContent(InputContentInfo inputContentInfo, int flags, Bundle opts,
             IBooleanResultCallback callback) {
         dispatch(() -> {
@@ -715,11 +748,7 @@ public final class IInputConnectionWrapper extends IInputContext.Stub {
         });
     }
 
-    /**
-     * Dispatches the request for setting ime consumes input.
-     *
-     * <p>See {@link InputConnection#setImeConsumesInput(boolean)}.
-     */
+    @Override
     public void setImeConsumesInput(boolean imeConsumesInput) {
         dispatch(() -> {
             Trace.traceBegin(Trace.TRACE_TAG_INPUT, "InputConnection#setImeConsumesInput");