mirror of
https://github.com/oxen-io/session-android.git
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121 lines
3.7 KiB
Java
121 lines
3.7 KiB
Java
/**
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* Copyright (C) 2011 Whisper Systems
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.thoughtcrime.securesms.mms;
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import android.content.Context;
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import android.net.Uri;
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import android.util.Log;
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import org.thoughtcrime.securesms.util.SmilUtil;
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import org.w3c.dom.smil.SMILDocument;
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import org.w3c.dom.smil.SMILMediaElement;
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import org.w3c.dom.smil.SMILRegionElement;
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import org.whispersystems.textsecure.crypto.MasterSecret;
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import org.thoughtcrime.securesms.util.LRUCache;
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import java.io.UnsupportedEncodingException;
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import java.lang.ref.SoftReference;
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import java.util.Collections;
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import java.util.Map;
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import ws.com.google.android.mms.ContentType;
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import ws.com.google.android.mms.pdu.CharacterSets;
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import ws.com.google.android.mms.pdu.PduPart;
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public class TextSlide extends Slide {
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private static final int MAX_CACHE_SIZE = 10;
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private static final Map<Uri, SoftReference<String>> textCache =
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Collections.synchronizedMap(new LRUCache<Uri, SoftReference<String>>(MAX_CACHE_SIZE));
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public TextSlide(Context context, MasterSecret masterSecret, PduPart part) {
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super(context, masterSecret, part);
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}
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public TextSlide(Context context, String message) {
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super(context, getPartForMessage(message));
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}
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@Override
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public boolean hasText() {
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return true;
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}
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@Override
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public String getText() {
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try {
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SoftReference<String> reference = textCache.get(part.getDataUri());
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if (reference != null) {
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String cachedText = reference.get();
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if (cachedText != null) {
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return cachedText;
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}
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}
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String text = new String(getPartData(), CharacterSets.getMimeName(part.getCharset()));
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textCache.put(part.getDataUri(), new SoftReference<String>(text));
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return text;
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} catch (UnsupportedEncodingException uee) {
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Log.w("TextSlide", uee);
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return new String(getPartData());
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}
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}
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@Override
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public SMILRegionElement getSmilRegion(SMILDocument document) {
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SMILRegionElement region = (SMILRegionElement) document.createElement("region");
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region.setId("Text");
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region.setLeft(0);
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region.setTop(SmilUtil.ROOT_HEIGHT);
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region.setWidth(SmilUtil.ROOT_WIDTH);
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region.setHeight(50);
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region.setFit("meet");
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return region;
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}
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@Override
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public SMILMediaElement getMediaElement(SMILDocument document) {
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return SmilUtil.createMediaElement("text", document, new String(getPart().getName()));
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}
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private static PduPart getPartForMessage(String message) {
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PduPart part = new PduPart();
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try {
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part.setData(message.getBytes(CharacterSets.MIMENAME_UTF_8));
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if (part.getData().length == 0)
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throw new AssertionError("Part data should not be zero!");
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} catch (UnsupportedEncodingException e) {
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Log.w("TextSlide", "ISO_8859_1 must be supported!", e);
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part.setData("Unsupported character set!".getBytes());
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}
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part.setCharset(CharacterSets.UTF_8);
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part.setContentType(ContentType.TEXT_PLAIN.getBytes());
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part.setContentId((System.currentTimeMillis()+"").getBytes());
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part.setName(("Text"+System.currentTimeMillis()).getBytes());
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return part;
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}
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}
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