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/**
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.phonegap.plugin.mobileaccessibility;
import android.accessibilityservice.AccessibilityServiceInfo;
import android.annotation.TargetApi;
import android.os.Build;
import android.view.accessibility.AccessibilityManager.AccessibilityStateChangeListener;
import java.lang.IllegalAccessException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
public class IceCreamSandwichMobileAccessibilityHelper extends
DonutMobileAccessibilityHelper {
private AccessibilityStateChangeListener mAccessibilityStateChangeListener;
@Override
public boolean isScreenReaderRunning() {
return mAccessibilityManager.getEnabledAccessibilityServiceList(AccessibilityServiceInfo.FEEDBACK_SPOKEN).size() > 0;
}
@Override
public void addStateChangeListeners() {
if (mAccessibilityStateChangeListener == null) {
mAccessibilityStateChangeListener = new InternalAccessibilityStateChangeListener();
}
mAccessibilityManager.addAccessibilityStateChangeListener(mAccessibilityStateChangeListener);
}
@Override
public void removeStateChangeListeners() {
mAccessibilityManager.removeAccessibilityStateChangeListener(mAccessibilityStateChangeListener);
mAccessibilityStateChangeListener = null;
}
@Override
public double getTextZoom() {
double zoom = 100;
try {
Method getSettings = mView.getClass().getMethod("getSettings");
Object wSettings = getSettings.invoke(mView);
Method getTextZoom = wSettings.getClass().getMethod("getTextZoom");
zoom = Double.valueOf(getTextZoom.invoke(wSettings).toString());
} catch (ClassCastException ce) {
ce.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
return zoom;
}
@Override
public void setTextZoom(double textZoom) {
//Log.i("MobileAccessibility", "setTextZoom(" + zoom + ")");
try {
Method getSettings = mView.getClass().getMethod("getSettings");
Object wSettings = getSettings.invoke(mView);
Method setTextZoom = wSettings.getClass().getMethod("setTextZoom", Integer.TYPE);
setTextZoom.invoke(wSettings, (int) textZoom);
} catch (ClassCastException ce) {
ce.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
private class InternalAccessibilityStateChangeListener
implements AccessibilityStateChangeListener {
@Override
public void onAccessibilityStateChanged(boolean enabled) {
mMobileAccessibility.onAccessibilityStateChanged(enabled);
}
}
}
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