65 lines
2.8 KiB
Java
65 lines
2.8 KiB
Java
/*
|
|
* Copyright (C) 2014 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package com.android.inputmethod.compat;
|
|
|
|
import android.view.inputmethod.InputConnection;
|
|
import android.view.inputmethod.InputMethodManager;
|
|
|
|
public final class InputConnectionCompatUtils {
|
|
private static final CompatUtils.ClassWrapper sInputConnectionType;
|
|
private static final CompatUtils.ToBooleanMethodWrapper sRequestCursorUpdatesMethod;
|
|
static {
|
|
sInputConnectionType = new CompatUtils.ClassWrapper(InputConnection.class);
|
|
sRequestCursorUpdatesMethod = sInputConnectionType.getPrimitiveMethod(
|
|
"requestCursorUpdates", false, int.class);
|
|
}
|
|
|
|
public static boolean isRequestCursorUpdatesAvailable() {
|
|
return sRequestCursorUpdatesMethod != null;
|
|
}
|
|
|
|
/**
|
|
* Local copies of some constants in InputConnection until the SDK becomes publicly available.
|
|
*/
|
|
private static int CURSOR_UPDATE_IMMEDIATE = 1 << 0;
|
|
private static int CURSOR_UPDATE_MONITOR = 1 << 1;
|
|
|
|
private static boolean requestCursorUpdatesImpl(final InputConnection inputConnection,
|
|
final int cursorUpdateMode) {
|
|
if (!isRequestCursorUpdatesAvailable()) {
|
|
return false;
|
|
}
|
|
return sRequestCursorUpdatesMethod.invoke(inputConnection, cursorUpdateMode);
|
|
}
|
|
|
|
/**
|
|
* Requests the editor to call back {@link InputMethodManager#updateCursorAnchorInfo}.
|
|
* @param inputConnection the input connection to which the request is to be sent.
|
|
* @param enableMonitor {@code true} to request the editor to call back the method whenever the
|
|
* cursor/anchor position is changed.
|
|
* @param requestImmediateCallback {@code true} to request the editor to call back the method
|
|
* as soon as possible to notify the current cursor/anchor position to the input method.
|
|
* @return {@code false} if the request is not handled. Otherwise returns {@code true}.
|
|
*/
|
|
public static boolean requestCursorUpdates(final InputConnection inputConnection,
|
|
final boolean enableMonitor, final boolean requestImmediateCallback) {
|
|
final int cursorUpdateMode = (enableMonitor ? CURSOR_UPDATE_MONITOR : 0)
|
|
| (requestImmediateCallback ? CURSOR_UPDATE_IMMEDIATE : 0);
|
|
return requestCursorUpdatesImpl(inputConnection, cursorUpdateMode);
|
|
}
|
|
}
|