diff options
Diffstat (limited to 'src/com/android/messaging/util/ContentType.java')
| -rw-r--r-- | src/com/android/messaging/util/ContentType.java | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/src/com/android/messaging/util/ContentType.java b/src/com/android/messaging/util/ContentType.java new file mode 100644 index 0000000..bb4a7b2 --- /dev/null +++ b/src/com/android/messaging/util/ContentType.java @@ -0,0 +1,185 @@ +/* + * 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; + } + } +} |