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Android: Add specialized content provider implementation of DoFileSearch

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This commit is contained in:
JosJuice
2020-12-28 13:25:24 +01:00
parent 01b964b01a
commit d78277c063
8 changed files with 177 additions and 42 deletions
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4
Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/ui/main/MainPresenter.java
View File

@ -130,8 +130,8 @@ public final class MainPresenter
boolean recursive = BooleanSetting.MAIN_RECURSIVE_ISO_PATHS.getBooleanGlobal();
String[] childNames = ContentHandler.getChildNames(uri, recursive);
if (Arrays.stream(childNames).noneMatch((name) ->
FileBrowserHelper.GAME_EXTENSIONS.contains(FileBrowserHelper.getExtension(name))))
if (Arrays.stream(childNames).noneMatch((name) -> FileBrowserHelper.GAME_EXTENSIONS.contains(
FileBrowserHelper.getExtension(name, false))))
{
AlertDialog.Builder builder = new AlertDialog.Builder(mContext, R.style.DolphinDialogBase);
builder.setMessage(mContext.getString(R.string.wrong_file_extension_in_directory,

90
Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/ContentHandler.java
View File

@ -15,7 +15,9 @@ import org.dolphinemu.dolphinemu.DolphinApplication;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.function.Predicate;
/*
We use a lot of "catch (Exception e)" in this class. This is for two reasons:
@ -184,34 +186,94 @@ public class ContentHandler
public static String[] getChildNames(@NonNull Uri uri, boolean recursive)
{
ArrayList<String> result = new ArrayList<>();
getChildNames(uri, DocumentsContract.getDocumentId(treeToDocument(uri)), recursive, result);
ForEachChildCallback callback = new ForEachChildCallback()
{
@Override
public void run(String displayName, String documentId, boolean isDirectory)
{
if (recursive && isDirectory)
{
forEachChild(uri, documentId, this);
}
else
{
result.add(displayName);
}
}
};
forEachChild(uri, DocumentsContract.getDocumentId(treeToDocument(uri)), callback);
return result.toArray(new String[0]);
}
private static void getChildNames(@NonNull Uri uri, @NonNull String documentId, boolean recursive,
List<String> resultOut)
@NonNull @Keep
public static String[] doFileSearch(@NonNull String directory, @NonNull String[] extensions,
boolean recursive)
{
ArrayList<String> result = new ArrayList<>();
try
{
Uri uri = unmangle(directory);
String documentId = DocumentsContract.getDocumentId(treeToDocument(uri));
boolean acceptAll = extensions.length == 0;
Predicate<String> extensionCheck = (displayName) ->
{
String extension = FileBrowserHelper.getExtension(displayName, true);
return extension != null && Arrays.stream(extensions).anyMatch(extension::equalsIgnoreCase);
};
doFileSearch(uri, directory, documentId, recursive, result, acceptAll, extensionCheck);
}
catch (Exception ignored)
{
}
return result.toArray(new String[0]);
}
private static void doFileSearch(@NonNull Uri baseUri, @NonNull String path,
@NonNull String documentId, boolean recursive, @NonNull List<String> resultOut,
boolean acceptAll, @NonNull Predicate<String> extensionCheck)
{
forEachChild(baseUri, documentId, (displayName, childDocumentId, isDirectory) ->
{
String childPath = path + '/' + displayName;
if (acceptAll || (!isDirectory && extensionCheck.test(displayName)))
{
resultOut.add(childPath);
}
if (recursive && isDirectory)
{
doFileSearch(baseUri, childPath, childDocumentId, recursive, resultOut, acceptAll,
extensionCheck);
}
});
}
private interface ForEachChildCallback
{
void run(String displayName, String documentId, boolean isDirectory);
}
private static void forEachChild(@NonNull Uri uri, @NonNull String documentId,
@NonNull ForEachChildCallback callback)
{
try
{
Uri childrenUri = DocumentsContract.buildChildDocumentsUriUsingTree(uri, documentId);
final String[] projection = recursive ? new String[]{Document.COLUMN_DISPLAY_NAME,
Document.COLUMN_MIME_TYPE, Document.COLUMN_DOCUMENT_ID} :
new String[]{Document.COLUMN_DISPLAY_NAME};
final String[] projection = new String[]{Document.COLUMN_DISPLAY_NAME,
Document.COLUMN_MIME_TYPE, Document.COLUMN_DOCUMENT_ID};
try (Cursor cursor = getContentResolver().query(childrenUri, projection, null, null, null))
{
if (cursor != null)
{
while (cursor.moveToNext())
{
if (recursive && Document.MIME_TYPE_DIR.equals(cursor.getString(1)))
{
getChildNames(uri, cursor.getString(2), recursive, resultOut);
}
else
{
resultOut.add(cursor.getString(0));
}
callback.run(cursor.getString(0), cursor.getString(2),
Document.MIME_TYPE_DIR.equals(cursor.getString(1)));
}
}
}

10
Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/FileBrowserHelper.java
View File

@ -88,10 +88,10 @@ public final class FileBrowserHelper
String path = uri.getLastPathSegment();
if (path != null)
extension = getExtension(new File(path).getName());
extension = getExtension(new File(path).getName(), false);
if (extension == null)
extension = getExtension(ContentHandler.getDisplayName(uri));
extension = getExtension(ContentHandler.getDisplayName(uri), false);
if (extension != null && validExtensions.contains(extension))
{
@ -122,13 +122,15 @@ public final class FileBrowserHelper
}
@Nullable
public static String getExtension(@Nullable String fileName)
public static String getExtension(@Nullable String fileName, boolean includeDot)
{
if (fileName == null)
return null;
int dotIndex = fileName.lastIndexOf(".");
return dotIndex != -1 ? fileName.substring(dotIndex + 1) : null;
if (dotIndex == -1)
return null;
return fileName.substring(dotIndex + (includeDot ? 0 : 1));
}
public static String setToSortedDelimitedString(Set<String> set)