diff options
author | Daniel Gultsch <daniel@gultsch.de> | 2015-08-11 16:50:00 +0200 |
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committer | Daniel Gultsch <daniel@gultsch.de> | 2015-08-11 16:50:00 +0200 |
commit | dad90762b44878a436479a3998fec45111c9af46 (patch) | |
tree | fe79357af8b05a691f7c2c1f9f39fe2c78b02510 /src/main/java/eu/siacs/conversations/utils | |
parent | 3677c6ec985f4b10d4d0c6a75c88973b2917ad4e (diff) |
do not touch pictures that are already in the right format
fixed #522
Diffstat (limited to '')
-rw-r--r-- | src/main/java/eu/siacs/conversations/utils/FileUtils.java | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/src/main/java/eu/siacs/conversations/utils/FileUtils.java b/src/main/java/eu/siacs/conversations/utils/FileUtils.java new file mode 100644 index 00000000..a13300d4 --- /dev/null +++ b/src/main/java/eu/siacs/conversations/utils/FileUtils.java @@ -0,0 +1,144 @@ +package eu.siacs.conversations.utils; + +import android.annotation.SuppressLint; +import android.content.ContentUris; +import android.content.Context; +import android.database.Cursor; +import android.net.Uri; +import android.os.Build; +import android.os.Environment; +import android.provider.DocumentsContract; +import android.provider.MediaStore; + +public class FileUtils { + + /** + * Get a file path from a Uri. This will get the the path for Storage Access + * Framework Documents, as well as the _data field for the MediaStore and + * other file-based ContentProviders. + * + * @param context The context. + * @param uri The Uri to query. + * @author paulburke + */ + @SuppressLint("NewApi") + public static String getPath(final Context context, final Uri uri) { + + final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT; + + // DocumentProvider + if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) { + // ExternalStorageProvider + if (isExternalStorageDocument(uri)) { + final String docId = DocumentsContract.getDocumentId(uri); + final String[] split = docId.split(":"); + final String type = split[0]; + + if ("primary".equalsIgnoreCase(type)) { + return Environment.getExternalStorageDirectory() + "/" + split[1]; + } + + // TODO handle non-primary volumes + } + // DownloadsProvider + else if (isDownloadsDocument(uri)) { + + final String id = DocumentsContract.getDocumentId(uri); + final Uri contentUri = ContentUris.withAppendedId( + Uri.parse("content://downloads/public_downloads"), Long.valueOf(id)); + + return getDataColumn(context, contentUri, null, null); + } + // MediaProvider + else if (isMediaDocument(uri)) { + final String docId = DocumentsContract.getDocumentId(uri); + final String[] split = docId.split(":"); + final String type = split[0]; + + Uri contentUri = null; + if ("image".equals(type)) { + contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI; + } else if ("video".equals(type)) { + contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI; + } else if ("audio".equals(type)) { + contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI; + } + + final String selection = "_id=?"; + final String[] selectionArgs = new String[]{ + split[1] + }; + + return getDataColumn(context, contentUri, selection, selectionArgs); + } + } + // MediaStore (and general) + else if ("content".equalsIgnoreCase(uri.getScheme())) { + return getDataColumn(context, uri, null, null); + } + // File + else if ("file".equalsIgnoreCase(uri.getScheme())) { + return uri.getPath(); + } + + return null; + } + + /** + * Get the value of the data column for this Uri. This is useful for + * MediaStore Uris, and other file-based ContentProviders. + * + * @param context The context. + * @param uri The Uri to query. + * @param selection (Optional) Filter used in the query. + * @param selectionArgs (Optional) Selection arguments used in the query. + * @return The value of the _data column, which is typically a file path. + */ + public static String getDataColumn(Context context, Uri uri, String selection, + String[] selectionArgs) { + + Cursor cursor = null; + final String column = "_data"; + final String[] projection = { + column + }; + + try { + cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, + null); + if (cursor != null && cursor.moveToFirst()) { + final int column_index = cursor.getColumnIndexOrThrow(column); + return cursor.getString(column_index); + } + } finally { + if (cursor != null) + cursor.close(); + } + return null; + } + + + /** + * @param uri The Uri to check. + * @return Whether the Uri authority is ExternalStorageProvider. + */ + public static boolean isExternalStorageDocument(Uri uri) { + return "com.android.externalstorage.documents".equals(uri.getAuthority()); + } + + /** + * @param uri The Uri to check. + * @return Whether the Uri authority is DownloadsProvider. + */ + public static boolean isDownloadsDocument(Uri uri) { + return "com.android.providers.downloads.documents".equals(uri.getAuthority()); + } + + /** + * @param uri The Uri to check. + * @return Whether the Uri authority is MediaProvider. + */ + public static boolean isMediaDocument(Uri uri) { + return "com.android.providers.media.documents".equals(uri.getAuthority()); + } +} |