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/*
* Copyright (C) 2011 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 android.text.style;
import android.annotation.NonNull;
import android.annotation.UnsupportedAppUsage;
import android.app.PendingIntent;
import android.os.Parcel;
import android.text.ParcelableSpan;
import android.text.TextUtils;
import android.widget.TextView;
/**
* Provides an easy way to edit a portion of text.
* <p>
* The {@link TextView} uses this span to allow the user to delete a chuck of text in one click.
* <p>
* {@link TextView} removes the span when the user deletes the whole text or modifies it.
* <p>
* This span can be also used to receive notification when the user deletes or modifies the text;
*/
public class EasyEditSpan implements ParcelableSpan {
/**
* The extra key field in the pending intent that describes how the text changed.
*
* @see #TEXT_DELETED
* @see #TEXT_MODIFIED
*/
public static final String EXTRA_TEXT_CHANGED_TYPE =
"android.text.style.EXTRA_TEXT_CHANGED_TYPE";
/**
* The value of {@link #EXTRA_TEXT_CHANGED_TYPE} when the text wrapped by this span is deleted.
*/
public static final int TEXT_DELETED = 1;
/**
* The value of {@link #EXTRA_TEXT_CHANGED_TYPE} when the text wrapped by this span is modified.
*/
public static final int TEXT_MODIFIED = 2;
private final PendingIntent mPendingIntent;
private boolean mDeleteEnabled;
/**
* Creates the span. No intent is sent when the wrapped text is modified or
* deleted.
*/
public EasyEditSpan() {
mPendingIntent = null;
mDeleteEnabled = true;
}
/**
* @param pendingIntent The intent will be sent when the wrapped text is deleted or modified.
* When the pending intent is sent, {@link #EXTRA_TEXT_CHANGED_TYPE} is
* added in the intent to describe how the text changed.
*/
public EasyEditSpan(PendingIntent pendingIntent) {
mPendingIntent = pendingIntent;
mDeleteEnabled = true;
}
/**
* Constructor called from {@link TextUtils} to restore the span.
*/
public EasyEditSpan(@NonNull Parcel source) {
mPendingIntent = source.readParcelable(null);
mDeleteEnabled = (source.readByte() == 1);
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(@NonNull Parcel dest, int flags) {
writeToParcelInternal(dest, flags);
}
/** @hide */
public void writeToParcelInternal(@NonNull Parcel dest, int flags) {
dest.writeParcelable(mPendingIntent, 0);
dest.writeByte((byte) (mDeleteEnabled ? 1 : 0));
}
@Override
public int getSpanTypeId() {
return getSpanTypeIdInternal();
}
/** @hide */
public int getSpanTypeIdInternal() {
return TextUtils.EASY_EDIT_SPAN;
}
/**
* @return True if the {@link TextView} should offer the ability to delete the text.
*
* @hide
*/
@UnsupportedAppUsage
public boolean isDeleteEnabled() {
return mDeleteEnabled;
}
/**
* Enables or disables the deletion of the text.
*
* @hide
*/
@UnsupportedAppUsage
public void setDeleteEnabled(boolean value) {
mDeleteEnabled = value;
}
/**
* @return the pending intent to send when the wrapped text is deleted or modified.
*
* @hide
*/
@UnsupportedAppUsage
public PendingIntent getPendingIntent() {
return mPendingIntent;
}
}
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