/*
* Copyright (C) 2008 Esmertec AG.
* Copyright (C) 2008 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.mms.model;
import java.io.UnsupportedEncodingException;
import org.w3c.dom.events.Event;
import org.w3c.dom.smil.ElementTime;
import android.content.Context;
import android.util.Log;
import com.android.mms.dom.smil.SmilMediaElementImpl;
import com.google.android.mms.pdu.CharacterSets;
public class TextModel extends RegionMediaModel {
private static final String TAG = "Mms/text";
private CharSequence mText;
private final int mCharset;
public TextModel(Context context, String contentType, String src, RegionModel region) {
this(context, contentType, src, CharacterSets.UTF_8, new byte[0], region);
}
public TextModel(Context context, String contentType, String src,
int charset, byte[] data, RegionModel region) {
super(context, SmilHelper.ELEMENT_TAG_TEXT, contentType, src,
data != null ? data : new byte[0], region);
if (charset == CharacterSets.ANY_CHARSET) {
// By default, we use ISO_8859_1 to decode the data
// which character set wasn't set.
charset = CharacterSets.ISO_8859_1;
}
mCharset = charset;
mText = extractTextFromData(data);
}
private CharSequence extractTextFromData(byte[] data) {
if (data != null) {
try {
if (CharacterSets.ANY_CHARSET == mCharset) {
return new String(data); // system default encoding.
} else {
String name = CharacterSets.getMimeName(mCharset);
return new String(data, name);
}
} catch (UnsupportedEncodingException e) {
Log.e(TAG, "Unsupported encoding: " + mCharset, e);
return new String(data); // system default encoding.
}
}
return "";
}
public String getText() {
if (mText == null) {
mText = extractTextFromData(getData());
}
// If our internal CharSequence is not already a String,
// re-save it as a String so subsequent calls to getText will
// be less expensive.
if (!(mText instanceof String)) {
mText = mText.toString();
}
return mText.toString();
}
public void setText(CharSequence text) {
mText = text;
notifyModelChanged(true);
}
public void cloneText() {
mText = new String(mText.toString());
}
public int getCharset() {
return mCharset;
}
// EventListener Interface
public void handleEvent(Event evt) {
if (evt.getType().equals(SmilMediaElementImpl.SMIL_MEDIA_START_EVENT)) {
mVisible = true;
} else if (mFill != ElementTime.FILL_FREEZE) {
mVisible = false;
}
notifyModelChanged(false);
}
}