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/*
* Copyright (C) 2007-2008 Esmertec AG.
* Copyright (C) 2007-2008 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.messaging.util;
import android.webkit.MimeTypeMap;
public final class ContentType {
public static String THREE_GPP_EXTENSION = "3gp";
public static String VIDEO_MP4_EXTENSION = "mp4";
// Default extension used when we don't know one.
public static String DEFAULT_EXTENSION = "dat";
public static final int TYPE_IMAGE = 0;
public static final int TYPE_VIDEO = 1;
public static final int TYPE_AUDIO = 2;
public static final int TYPE_VCARD = 3;
public static final int TYPE_OTHER = 4;
public static final String ANY_TYPE = "*/*";
public static final String MMS_MESSAGE = "application/vnd.wap.mms-message";
// The phony content type for generic PDUs (e.g. ReadOrig.ind,
// Notification.ind, Delivery.ind).
public static final String MMS_GENERIC = "application/vnd.wap.mms-generic";
public static final String MMS_MULTIPART_MIXED = "application/vnd.wap.multipart.mixed";
public static final String MMS_MULTIPART_RELATED = "application/vnd.wap.multipart.related";
public static final String MMS_MULTIPART_ALTERNATIVE =
"application/vnd.wap.multipart.alternative";
public static final String TEXT_PLAIN = "text/plain";
public static final String TEXT_HTML = "text/html";
public static final String TEXT_VCALENDAR = "text/x-vCalendar";
public static final String TEXT_VCARD = "text/x-vCard";
public static final String IMAGE_PREFIX = "image/";
public static final String IMAGE_UNSPECIFIED = "image/*";
public static final String IMAGE_JPEG = "image/jpeg";
public static final String IMAGE_JPG = "image/jpg";
public static final String IMAGE_GIF = "image/gif";
public static final String IMAGE_WBMP = "image/vnd.wap.wbmp";
public static final String IMAGE_PNG = "image/png";
public static final String IMAGE_X_MS_BMP = "image/x-ms-bmp";
public static final String AUDIO_UNSPECIFIED = "audio/*";
public static final String AUDIO_AAC = "audio/aac";
public static final String AUDIO_AMR = "audio/amr";
public static final String AUDIO_IMELODY = "audio/imelody";
public static final String AUDIO_MID = "audio/mid";
public static final String AUDIO_MIDI = "audio/midi";
public static final String AUDIO_MP3 = "audio/mp3";
public static final String AUDIO_MPEG3 = "audio/mpeg3";
public static final String AUDIO_MPEG = "audio/mpeg";
public static final String AUDIO_MPG = "audio/mpg";
public static final String AUDIO_MP4 = "audio/mp4";
public static final String AUDIO_MP4_LATM = "audio/mp4-latm";
public static final String AUDIO_X_MID = "audio/x-mid";
public static final String AUDIO_X_MIDI = "audio/x-midi";
public static final String AUDIO_X_MP3 = "audio/x-mp3";
public static final String AUDIO_X_MPEG3 = "audio/x-mpeg3";
public static final String AUDIO_X_MPEG = "audio/x-mpeg";
public static final String AUDIO_X_MPG = "audio/x-mpg";
public static final String AUDIO_3GPP = "audio/3gpp";
public static final String AUDIO_X_WAV = "audio/x-wav";
public static final String AUDIO_OGG = "application/ogg";
public static final String MULTIPART_MIXED = "multipart/mixed";
public static final String VIDEO_UNSPECIFIED = "video/*";
public static final String VIDEO_3GP = "video/3gp";
public static final String VIDEO_3GPP = "video/3gpp";
public static final String VIDEO_3G2 = "video/3gpp2";
public static final String VIDEO_H263 = "video/h263";
public static final String VIDEO_M4V = "video/m4v";
public static final String VIDEO_MP4 = "video/mp4";
public static final String VIDEO_MPEG = "video/mpeg";
public static final String VIDEO_MPEG4 = "video/mpeg4";
public static final String VIDEO_WEBM = "video/webm";
public static final String APP_SMIL = "application/smil";
public static final String APP_WAP_XHTML = "application/vnd.wap.xhtml+xml";
public static final String APP_XHTML = "application/xhtml+xml";
public static final String APP_DRM_CONTENT = "application/vnd.oma.drm.content";
public static final String APP_DRM_MESSAGE = "application/vnd.oma.drm.message";
// This class should never be instantiated.
private ContentType() {
}
public static boolean isTextType(final String contentType) {
return TEXT_PLAIN.equals(contentType)
|| TEXT_HTML.equals(contentType)
|| APP_WAP_XHTML.equals(contentType);
}
public static boolean isMediaType(final String contentType) {
return isImageType(contentType)
|| isVideoType(contentType)
|| isAudioType(contentType)
|| isVCardType(contentType);
}
public static boolean isImageType(final String contentType) {
return (null != contentType) && contentType.startsWith(IMAGE_PREFIX);
}
public static boolean isAudioType(final String contentType) {
return (null != contentType) &&
(contentType.startsWith("audio/") || contentType.equalsIgnoreCase(AUDIO_OGG));
}
public static boolean isVideoType(final String contentType) {
return (null != contentType) && contentType.startsWith("video/");
}
public static boolean isVCardType(final String contentType) {
return (null != contentType) && contentType.equalsIgnoreCase(TEXT_VCARD);
}
public static boolean isDrmType(final String contentType) {
return (null != contentType)
&& (contentType.equals(APP_DRM_CONTENT)
|| contentType.equals(APP_DRM_MESSAGE));
}
public static boolean isUnspecified(final String contentType) {
return (null != contentType) && contentType.endsWith("*");
}
/**
* If the content type is a type which can be displayed in the conversation list as a preview.
*/
public static boolean isConversationListPreviewableType(final String contentType) {
return ContentType.isAudioType(contentType) || ContentType.isVideoType(contentType) ||
ContentType.isImageType(contentType) || ContentType.isVCardType(contentType);
}
/**
* Given a filename, look at the extension and try and determine the mime type.
*
* @param fileName a filename to determine the type from, such as img1231.jpg
* @param contentTypeDefault type to use when the content type can't be determined from the file
* extension. It can be null or a type such as ContentType.IMAGE_UNSPECIFIED
* @return Content type of the extension.
*/
public static String getContentTypeFromExtension(final String fileName,
final String contentTypeDefault) {
final MimeTypeMap mimeTypeMap = MimeTypeMap.getSingleton();
final String extension = MimeTypeMap.getFileExtensionFromUrl(fileName);
String contentType = mimeTypeMap.getMimeTypeFromExtension(extension);
if (contentType == null) {
contentType = contentTypeDefault;
}
return contentType;
}
/**
* Get the common file extension for a given content type
* @param contentType The content type
* @return The extension without the .
*/
public static String getExtension(final String contentType) {
if (VIDEO_MP4.equals(contentType)) {
return VIDEO_MP4_EXTENSION;
} else if (VIDEO_3GPP.equals(contentType)) {
return THREE_GPP_EXTENSION;
} else {
return DEFAULT_EXTENSION;
}
}
}
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