2015-05-21 12:17:42 -07:00

124 lines
3.4 KiB
Java

/**
* Copyright (C) 2011 Whisper Systems
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.thoughtcrime.securesms.mms;
import android.content.Context;
import android.content.res.Resources.Theme;
import android.net.Uri;
import android.support.annotation.DrawableRes;
import android.support.annotation.NonNull;
import android.util.Log;
import org.thoughtcrime.securesms.crypto.MasterSecret;
import org.thoughtcrime.securesms.util.Util;
import java.io.IOException;
import java.io.InputStream;
import ws.com.google.android.mms.pdu.PduPart;
public abstract class Slide {
protected final PduPart part;
protected final Context context;
protected MasterSecret masterSecret;
public Slide(Context context, @NonNull PduPart part) {
this.part = part;
this.context = context;
}
public Slide(Context context, @NonNull MasterSecret masterSecret, @NonNull PduPart part) {
this(context, part);
this.masterSecret = masterSecret;
}
public String getContentType() {
return new String(part.getContentType());
}
public Uri getUri() {
return part.getDataUri();
}
public boolean hasImage() {
return false;
}
public boolean hasVideo() {
return false;
}
public boolean hasAudio() {
return false;
}
public PduPart getPart() {
return part;
}
public Uri getThumbnailUri() {
return null;
}
public @DrawableRes int getPlaceholderRes(Theme theme) {
throw new AssertionError("getPlaceholderRes() called for non-drawable slide");
}
public boolean isDraft() {
return !getPart().getPartId().isValid();
}
protected static void assertMediaSize(Context context, Uri uri)
throws MediaTooLargeException, IOException
{
InputStream in = context.getContentResolver().openInputStream(uri);
long size = 0;
byte[] buffer = new byte[512];
int read;
while ((read = in.read(buffer)) != -1) {
size += read;
if (size > MmsMediaConstraints.MAX_MESSAGE_SIZE) throw new MediaTooLargeException("Media exceeds maximum message size.");
}
}
@Override
public boolean equals(Object other) {
if (!(other instanceof Slide)) return false;
Slide that = (Slide)other;
return Util.equals(this.getContentType(), that.getContentType()) &&
this.hasAudio() == that.hasAudio() &&
this.hasImage() == that.hasImage() &&
this.hasVideo() == that.hasVideo() &&
this.isDraft() == that.isDraft() &&
Util.equals(this.getUri(), that.getUri()) &&
Util.equals(this.getThumbnailUri(), that.getThumbnailUri());
}
@Override
public int hashCode() {
return Util.hashCode(getContentType(), hasAudio(), hasImage(),
hasVideo(), isDraft(), getUri(), getThumbnailUri());
}
}