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/* Copyright 2010-2014 Yorba Foundation
*
* This software is licensed under the GNU LGPL (version 2.1 or later).
* See the COPYING file in this distribution.
*/
public class BackingFileState {
public string filepath;
public int64 filesize;
public time_t modification_time;
public string? md5;
public BackingFileState(string filepath, int64 filesize, time_t modification_time, string? md5) {
this.filepath = filepath;
this.filesize = filesize;
this.modification_time = modification_time;
this.md5 = md5;
}
public BackingFileState.from_photo_row(BackingPhotoRow photo_row, string? md5) {
this.filepath = photo_row.filepath;
this.filesize = photo_row.filesize;
this.modification_time = photo_row.timestamp;
this.md5 = md5;
}
public File get_file() {
return File.new_for_path(filepath);
}
}
public abstract class MediaSource : ThumbnailSource, Indexable {
public virtual signal void master_replaced(File old_file, File new_file) {
}
private Event? event = null;
private string? indexable_keywords = null;
public MediaSource(int64 object_id = INVALID_OBJECT_ID) {
base (object_id);
}
protected static inline uint64 internal_add_flags(uint64 flags, uint64 selector) {
return (flags | selector);
}
protected static inline uint64 internal_remove_flags(uint64 flags, uint64 selector) {
return (flags & ~selector);
}
protected static inline bool internal_is_flag_set(uint64 flags, uint64 selector) {
return ((flags & selector) != 0);
}
protected virtual void notify_master_replaced(File old_file, File new_file) {
master_replaced(old_file, new_file);
}
protected override void notify_altered(Alteration alteration) {
Alteration local = alteration;
if (local.has_detail("metadata", "name") || local.has_detail("backing", "master")) {
update_indexable_keywords();
local = local.compress(new Alteration("indexable", "keywords"));
}
base.notify_altered(local);
}
// use this method as a kind of post-constructor initializer; it means the DataSource has been
// added or removed to a SourceCollection.
protected override void notify_membership_changed(DataCollection? collection) {
if (collection != null && indexable_keywords == null) {
// don't fire the alteration here, as the MediaSource is only being added to its
// SourceCollection
update_indexable_keywords();
}
base.notify_membership_changed(collection);
}
private void update_indexable_keywords() {
string[] indexables = new string[3];
indexables[0] = get_title();
indexables[1] = get_basename();
indexables[2] = get_comment();
indexable_keywords = prepare_indexable_strings(indexables);
}
public unowned string? get_indexable_keywords() {
return indexable_keywords;
}
protected abstract bool set_event_id(EventID id);
protected bool delete_original_file() {
bool ret = false;
File file = get_master_file();
try {
ret = file.trash(null);
} catch (Error err) {
// log error but don't abend, as this is not fatal to operation (also, could be
// the photo is removed because it could not be found during a verify)
message("Unable to move original photo %s to trash: %s", file.get_path(), err.message);
}
// remove empty directories corresponding to imported path, but only if file is located
// inside the user's Pictures directory
if (file.has_prefix(AppDirs.get_import_dir())) {
File parent = file;
while (!parent.equal(AppDirs.get_import_dir())) {
parent = parent.get_parent();
if ((parent == null) || (parent.equal(AppDirs.get_import_dir())))
break;
try {
if (!query_is_directory_empty(parent))
break;
} catch (Error err) {
warning("Unable to query file info for %s: %s", parent.get_path(), err.message);
break;
}
try {
parent.delete(null);
debug("Deleted empty directory %s", parent.get_path());
} catch (Error err) {
// again, log error but don't abend
message("Unable to delete empty directory %s: %s", parent.get_path(),
err.message);
}
}
}
return ret;
}
public override string get_name() {
string? title = get_title();
return is_string_empty(title) ? get_basename() : title;
}
public virtual string get_basename() {
return get_file().get_basename();
}
public abstract File get_file();
public abstract File get_master_file();
public abstract uint64 get_master_filesize();
public abstract uint64 get_filesize();
public abstract time_t get_timestamp();
// Must return at least one, for the master file.
public abstract BackingFileState[] get_backing_files_state();
public abstract string? get_title();
public abstract string? get_comment();
public abstract void set_title(string? title);
public abstract bool set_comment(string? comment);
public static string? prep_title(string? title) {
return prepare_input_text(title,
PrepareInputTextOptions.DEFAULT & ~PrepareInputTextOptions.EMPTY_IS_NULL, DEFAULT_USER_TEXT_INPUT_LENGTH);
}
public static string? prep_comment(string? comment) {
return prepare_input_text(comment,
PrepareInputTextOptions.DEFAULT & ~PrepareInputTextOptions.STRIP_CRLF & ~PrepareInputTextOptions.EMPTY_IS_NULL, -1);
}
public abstract Rating get_rating();
public abstract void set_rating(Rating rating);
public abstract void increase_rating();
public abstract void decrease_rating();
public abstract Dimensions get_dimensions(Photo.Exception disallowed_steps = Photo.Exception.NONE);
// A preview pixbuf is one that can be quickly generated and scaled as a preview. For media
// type that support transformations (i.e. photos) it is fully transformed.
//
// Note that an unscaled scaling is not considered a performance-killer for this method,
// although the quality of the pixbuf may be quite poor compared to the actual unscaled
// transformed pixbuf.
public abstract Gdk.Pixbuf get_preview_pixbuf(Scaling scaling) throws Error;
public abstract bool is_trashed();
public abstract void trash();
public abstract void untrash();
public abstract bool is_offline();
public abstract void mark_offline();
public abstract void mark_online();
public abstract string get_master_md5();
// WARNING: some child classes of MediaSource (e.g. Photo) implement this method in a
// non-thread safe manner for efficiency.
public abstract EventID get_event_id();
public Event? get_event() {
if (event != null)
return event;
EventID event_id = get_event_id();
if (!event_id.is_valid())
return null;
event = Event.global.fetch(event_id);
return event;
}
public bool set_event(Event? new_event) {
EventID event_id = (new_event != null) ? new_event.get_event_id() : EventID();
if (get_event_id().id == event_id.id)
return true;
bool committed = set_event_id(event_id);
if (committed) {
if (event != null)
event.detach(this);
if (new_event != null)
new_event.attach(this);
event = new_event;
notify_altered(new Alteration("metadata", "event"));
}
return committed;
}
public static void set_many_to_event(Gee.Collection<MediaSource> media_sources, Event? event,
TransactionController controller) throws Error {
EventID event_id = (event != null) ? event.get_event_id() : EventID();
controller.begin();
foreach (MediaSource media in media_sources) {
Event? old_event = media.get_event();
if (old_event != null)
old_event.detach(media);
media.set_event_id(event_id);
media.event = event;
}
if (event != null)
event.attach_many(media_sources);
Alteration alteration = new Alteration("metadata", "event");
foreach (MediaSource media in media_sources)
media.notify_altered(alteration);
controller.commit();
}
public abstract time_t get_exposure_time();
public abstract ImportID get_import_id();
}
public class MediaSourceHoldingTank : DatabaseSourceHoldingTank {
private Gee.HashMap<File, MediaSource> master_file_map = new Gee.HashMap<File, MediaSource>(
file_hash, file_equal);
public MediaSourceHoldingTank(MediaSourceCollection sources,
SourceHoldingTank.CheckToKeep check_to_keep, GetSourceDatabaseKey get_key) {
base (sources, check_to_keep, get_key);
}
public MediaSource? fetch_by_master_file(File file) {
return master_file_map.get(file);
}
public MediaSource? fetch_by_md5(string md5) {
foreach (MediaSource source in master_file_map.values) {
if (source.get_master_md5() == md5) {
return source;
}
}
return null;
}
protected override void notify_contents_altered(Gee.Collection<DataSource>? added,
Gee.Collection<DataSource>? removed) {
if (added != null) {
foreach (DataSource source in added) {
MediaSource media_source = (MediaSource) source;
master_file_map.set(media_source.get_master_file(), media_source);
media_source.master_replaced.connect(on_master_source_replaced);
}
}
if (removed != null) {
foreach (DataSource source in removed) {
MediaSource media_source = (MediaSource) source;
bool is_removed = master_file_map.unset(media_source.get_master_file());
assert(is_removed);
media_source.master_replaced.disconnect(on_master_source_replaced);
}
}
base.notify_contents_altered(added, removed);
}
private void on_master_source_replaced(MediaSource media_source, File old_file, File new_file) {
bool removed = master_file_map.unset(old_file);
assert(removed);
master_file_map.set(new_file, media_source);
}
}
// This class is good for any MediaSourceCollection that is backed by a DatabaseTable (which should
// be all of them, but if not, they should construct their own implementation).
public class MediaSourceTransactionController : TransactionController {
private MediaSourceCollection sources;
public MediaSourceTransactionController(MediaSourceCollection sources) {
this.sources = sources;
}
protected override void begin_impl() throws Error {
DatabaseTable.begin_transaction();
sources.freeze_notifications();
}
protected override void commit_impl() throws Error {
sources.thaw_notifications();
DatabaseTable.commit_transaction();
}
}
public abstract class MediaSourceCollection : DatabaseSourceCollection {
public abstract TransactionController transaction_controller { get; }
private MediaSourceHoldingTank trashcan = null;
private MediaSourceHoldingTank offline_bin = null;
private Gee.HashMap<File, MediaSource> by_master_file = new Gee.HashMap<File, MediaSource>(
file_hash, file_equal);
private Gee.MultiMap<ImportID?, MediaSource> import_rolls =
new Gee.TreeMultiMap<ImportID?, MediaSource>(ImportID.compare_func);
private Gee.TreeSet<ImportID?> sorted_import_ids = new Gee.TreeSet<ImportID?>(ImportID.compare_func);
private Gee.Set<MediaSource> flagged = new Gee.HashSet<MediaSource>();
// This signal is fired when MediaSources are added to the collection due to a successful import.
// "items-added" and "contents-altered" will follow.
public virtual signal void media_import_starting(Gee.Collection<MediaSource> media) {
}
// This signal is fired when MediaSources have been added to the collection due to a successful
// import and import postprocessing has completed (such as adding an import Photo to its Tags).
// Thus, signals that have already been fired (in this order) are "media-imported", "items-added",
// "contents-altered" before this signal.
public virtual signal void media_import_completed(Gee.Collection<MediaSource> media) {
}
public virtual signal void master_file_replaced(MediaSource media, File old_file, File new_file) {
}
public virtual signal void trashcan_contents_altered(Gee.Collection<MediaSource>? added,
Gee.Collection<MediaSource>? removed) {
}
public virtual signal void import_roll_altered() {
}
public virtual signal void offline_contents_altered(Gee.Collection<MediaSource>? added,
Gee.Collection<MediaSource>? removed) {
}
public virtual signal void flagged_contents_altered() {
}
public MediaSourceCollection(string name, GetSourceDatabaseKey source_key_func) {
base(name, source_key_func);
trashcan = create_trashcan();
offline_bin = create_offline_bin();
}
public static void filter_media(Gee.Collection<MediaSource> media,
Gee.Collection<LibraryPhoto>? photos, Gee.Collection<Video>? videos) {
foreach (MediaSource source in media) {
if (photos != null && source is LibraryPhoto)
photos.add((LibraryPhoto) source);
else if (videos != null && source is Video)
videos.add((Video) source);
else if (photos != null || videos != null)
warning("Unrecognized media: %s", source.to_string());
}
}
public static void count_media(Gee.Collection<MediaSource> media, out int photo_count,
out int video_count) {
Gee.ArrayList<MediaSource> photos = new Gee.ArrayList<MediaSource>();
Gee.ArrayList<MediaSource> videos = new Gee.ArrayList<MediaSource>();
filter_media(media, photos, videos);
photo_count = photos.size;
video_count = videos.size;
}
public static bool has_photo(Gee.Collection<MediaSource> media) {
foreach (MediaSource current_media in media) {
if (current_media is Photo) {
return true;
}
}
return false;
}
public static bool has_video(Gee.Collection<MediaSource> media) {
foreach (MediaSource current_media in media) {
if (current_media is Video) {
return true;
}
}
return false;
}
protected abstract MediaSourceHoldingTank create_trashcan();
protected abstract MediaSourceHoldingTank create_offline_bin();
public abstract MediaMonitor create_media_monitor(Workers workers, Cancellable cancellable);
public abstract string get_typename();
public abstract bool is_file_recognized(File file);
public MediaSourceHoldingTank get_trashcan() {
return trashcan;
}
public MediaSourceHoldingTank get_offline_bin() {
return offline_bin;
}
// NOTE: numeric id's are not unique throughout the system -- they're only unique
// per media type. So a MediaSourceCollection should only ever hold media
// of the same type.
protected abstract MediaSource? fetch_by_numeric_id(int64 numeric_id);
protected virtual void notify_import_roll_altered() {
import_roll_altered();
}
protected virtual void notify_flagged_contents_altered() {
flagged_contents_altered();
}
protected virtual void notify_media_import_starting(Gee.Collection<MediaSource> media) {
media_import_starting(media);
}
protected virtual void notify_media_import_completed(Gee.Collection<MediaSource> media) {
media_import_completed(media);
}
protected override void items_altered(Gee.Map<DataObject, Alteration> items) {
Gee.ArrayList<MediaSource> to_trashcan = null;
Gee.ArrayList<MediaSource> to_offline = null;
bool flagged_altered = false;
foreach (DataObject object in items.keys) {
Alteration alteration = items.get(object);
MediaSource source = (MediaSource) object;
if (!alteration.has_subject("metadata"))
continue;
if (source.is_trashed() && !get_trashcan().contains(source)) {
if (to_trashcan == null)
to_trashcan = new Gee.ArrayList<MediaSource>();
to_trashcan.add(source);
// sources can only be in trashcan or offline -- not both
continue;
}
if (source.is_offline() && !get_offline_bin().contains(source)) {
if (to_offline == null)
to_offline = new Gee.ArrayList<MediaSource>();
to_offline.add(source);
}
Flaggable? flaggable = source as Flaggable;
if (flaggable != null) {
if (flaggable.is_flagged())
flagged_altered = flagged.add(source) || flagged_altered;
else
flagged_altered = flagged.remove(source) || flagged_altered;
}
}
if (to_trashcan != null)
get_trashcan().unlink_and_hold(to_trashcan);
if (to_offline != null)
get_offline_bin().unlink_and_hold(to_offline);
if (flagged_altered)
notify_flagged_contents_altered();
base.items_altered(items);
}
protected override void notify_contents_altered(Gee.Iterable<DataObject>? added,
Gee.Iterable<DataObject>? removed) {
bool import_roll_changed = false;
bool flagged_altered = false;
if (added != null) {
foreach (DataObject object in added) {
MediaSource media = (MediaSource) object;
by_master_file.set(media.get_master_file(), media);
media.master_replaced.connect(on_master_replaced);
ImportID import_id = media.get_import_id();
if (import_id.is_valid()) {
sorted_import_ids.add(import_id);
import_rolls.set(import_id, media);
import_roll_changed = true;
}
Flaggable? flaggable = media as Flaggable;
if (flaggable != null ) {
if (flaggable.is_flagged())
flagged_altered = flagged.add(media) || flagged_altered;
else
flagged_altered = flagged.remove(media) || flagged_altered;
}
}
}
if (removed != null) {
foreach (DataObject object in removed) {
MediaSource media = (MediaSource) object;
bool is_removed = by_master_file.unset(media.get_master_file());
assert(is_removed);
media.master_replaced.disconnect(on_master_replaced);
ImportID import_id = media.get_import_id();
if (import_id.is_valid()) {
is_removed = import_rolls.remove(import_id, media);
assert(is_removed);
if (!import_rolls.contains(import_id))
sorted_import_ids.remove(import_id);
import_roll_changed = true;
}
flagged_altered = flagged.remove(media) || flagged_altered;
}
}
if (import_roll_changed)
notify_import_roll_altered();
if (flagged_altered)
notify_flagged_contents_altered();
base.notify_contents_altered(added, removed);
}
private void on_master_replaced(MediaSource media, File old_file, File new_file) {
bool is_removed = by_master_file.unset(old_file);
assert(is_removed);
by_master_file.set(new_file, media);
master_file_replaced(media, old_file, new_file);
}
public MediaSource? fetch_by_master_file(File file) {
return by_master_file.get(file);
}
public virtual MediaSource? fetch_by_source_id(string source_id) {
string[] components = source_id.split("-");
assert(components.length == 2);
return fetch_by_numeric_id(parse_int64(components[1], 16));
}
public abstract Gee.Collection<string> get_event_source_ids(EventID event_id);
public Gee.Collection<MediaSource> get_trashcan_contents() {
return (Gee.Collection<MediaSource>) get_trashcan().get_all();
}
public Gee.Collection<MediaSource> get_offline_bin_contents() {
return (Gee.Collection<MediaSource>) get_offline_bin().get_all();
}
public Gee.Collection<MediaSource> get_flagged() {
return flagged.read_only_view;
}
// The returned set of ImportID's is sorted from oldest to newest.
public Gee.SortedSet<ImportID?> get_import_roll_ids() {
return sorted_import_ids;
}
public ImportID? get_last_import_id() {
return sorted_import_ids.size != 0 ? sorted_import_ids.last() : null;
}
public Gee.Collection<MediaSource?>? get_import_roll(ImportID import_id) {
return import_rolls.get(import_id);
}
public void add_many_to_trash(Gee.Collection<MediaSource> sources) {
get_trashcan().add_many(sources);
}
public void add_many_to_offline(Gee.Collection<MediaSource> sources) {
get_offline_bin().add_many(sources);
}
public int get_trashcan_count() {
return get_trashcan().get_count();
}
// This method should be used in place of add_many() when adding MediaSources due to a successful
// import. This function fires appropriate signals and calls add_many(), so the signals
// associated with that call will be fired too.
public virtual void import_many(Gee.Collection<MediaSource> media) {
notify_media_import_starting(media);
add_many(media);
postprocess_imported_media(media);
notify_media_import_completed(media);
}
// Child classes can override this method to perform postprocessing on a imported media, such
// as associating them with tags or events.
protected virtual void postprocess_imported_media(Gee.Collection<MediaSource> media) {
}
// This operation cannot be cancelled; the return value of the ProgressMonitor is ignored.
// Note that delete_backing dictates whether or not the photos are tombstoned (if deleted,
// tombstones are not created).
public void remove_from_app(Gee.Collection<MediaSource>? sources, bool delete_backing,
ProgressMonitor? monitor = null, Gee.List<MediaSource>? not_removed = null) {
assert(sources != null);
// only tombstone if the backing is not being deleted
Gee.HashSet<MediaSource> to_tombstone = !delete_backing ? new Gee.HashSet<MediaSource>() : null;
// separate photos into two piles: those in the trash and those not
Gee.ArrayList<MediaSource> trashed = new Gee.ArrayList<MediaSource>();
Gee.ArrayList<MediaSource> offlined = new Gee.ArrayList<MediaSource>();
Gee.ArrayList<MediaSource> not_trashed = new Gee.ArrayList<MediaSource>();
foreach (MediaSource source in sources) {
if (source.is_trashed())
trashed.add(source);
else if (source.is_offline())
offlined.add(source);
else
not_trashed.add(source);
if (to_tombstone != null)
to_tombstone.add(source);
}
int total_count = sources.size;
assert(total_count == (trashed.size + offlined.size + not_trashed.size));
// use an aggregate progress monitor, as it's possible there are three steps here
AggregateProgressMonitor agg_monitor = null;
if (monitor != null) {
agg_monitor = new AggregateProgressMonitor(total_count, monitor);
monitor = agg_monitor.monitor;
}
if (trashed.size > 0)
get_trashcan().destroy_orphans(trashed, delete_backing, monitor, not_removed);
if (offlined.size > 0)
get_offline_bin().destroy_orphans(offlined, delete_backing, monitor, not_removed);
// untrashed media sources may be destroyed outright
if (not_trashed.size > 0)
destroy_marked(mark_many(not_trashed), delete_backing, monitor, not_removed);
if (to_tombstone != null && to_tombstone.size > 0) {
try {
Tombstone.entomb_many_sources(to_tombstone, Tombstone.Reason.REMOVED_BY_USER);
} catch (DatabaseError err) {
AppWindow.database_error(err);
}
}
}
// Deletes (i.e. not trashes) the backing files.
// Note: must be removed from DB first.
public void delete_backing_files(Gee.Collection<MediaSource> sources,
ProgressMonitor? monitor = null, Gee.List<MediaSource>? not_deleted = null) {
int total_count = sources.size;
int i = 1;
foreach (MediaSource source in sources) {
File file = source.get_file();
try {
file.delete(null);
} catch (Error err) {
// Note: we may get an exception even though the delete succeeded.
debug("Exception deleting file %s: %s", file.get_path(), err.message);
}
bool deleted = !file.query_exists();
if (!deleted && null != not_deleted) {
not_deleted.add(source);
}
if (monitor != null) {
monitor(i, total_count);
}
i++;
}
}
}
public class MediaCollectionRegistry {
private const int LIBRARY_MONITOR_START_DELAY_MSEC = 1000;
private static MediaCollectionRegistry? instance = null;
private Gee.ArrayList<MediaSourceCollection> all = new Gee.ArrayList<MediaSourceCollection>();
private Gee.HashMap<string, MediaSourceCollection> by_typename =
new Gee.HashMap<string, MediaSourceCollection>();
private MediaCollectionRegistry() {
Application.get_instance().init_done.connect(on_init_done);
}
~MediaCollectionRegistry() {
Application.get_instance().init_done.disconnect(on_init_done);
}
private void on_init_done() {
// install the default library monitor
LibraryMonitor library_monitor = new LibraryMonitor(AppDirs.get_import_dir(), true,
!CommandlineOptions.no_runtime_monitoring);
LibraryMonitorPool.get_instance().replace(library_monitor, LIBRARY_MONITOR_START_DELAY_MSEC);
}
public static void init() {
instance = new MediaCollectionRegistry();
Config.Facade.get_instance().import_directory_changed.connect(on_import_directory_changed);
}
public static void terminate() {
Config.Facade.get_instance().import_directory_changed.disconnect(on_import_directory_changed);
}
private static void on_import_directory_changed() {
File import_dir = AppDirs.get_import_dir();
LibraryMonitor? current = LibraryMonitorPool.get_instance().get_monitor();
if (current != null && current.get_root().equal(import_dir))
return;
LibraryMonitor replacement = new LibraryMonitor(import_dir, true,
!CommandlineOptions.no_runtime_monitoring);
LibraryMonitorPool.get_instance().replace(replacement, LIBRARY_MONITOR_START_DELAY_MSEC);
}
public static MediaCollectionRegistry get_instance() {
return instance;
}
public static string get_typename_from_source_id(string source_id) {
// we have to special-case photos because their source id format is non-standard. this
// is due to a historical quirk.
if (source_id.has_prefix(Photo.TYPENAME)) {
return Photo.TYPENAME;
} else {
string[] components = source_id.split("-");
assert(components.length == 2);
return components[0];
}
}
public void register_collection(MediaSourceCollection collection) {
all.add(collection);
by_typename.set(collection.get_typename(), collection);
}
// NOTE: going forward, please use get_collection( ) and get_all_collections( ) to get the
// collection associated with a specific media type or to get all registered collections,
// respectively, instead of explicitly referencing Video.global and LibraryPhoto.global.
// This will make it *much* easier to add new media types in the future.
public MediaSourceCollection? get_collection(string typename) {
return by_typename.get(typename);
}
public Gee.Collection<MediaSourceCollection> get_all() {
return all.read_only_view;
}
public void freeze_all() {
foreach (MediaSourceCollection sources in get_all())
sources.freeze_notifications();
}
public void thaw_all() {
foreach (MediaSourceCollection sources in get_all())
sources.thaw_notifications();
}
public void begin_transaction_on_all() {
foreach (MediaSourceCollection sources in get_all())
sources.transaction_controller.begin();
}
public void commit_transaction_on_all() {
foreach (MediaSourceCollection sources in get_all())
sources.transaction_controller.commit();
}
public MediaSource? fetch_media(string source_id) {
string typename = get_typename_from_source_id(source_id);
MediaSourceCollection? collection = get_collection(typename);
if (collection == null) {
critical("source id '%s' has unrecognized media type '%s'", source_id, typename);
return null;
}
return collection.fetch_by_source_id(source_id);
}
public ImportID? get_last_import_id() {
ImportID last_import_id = ImportID();
foreach (MediaSourceCollection current_collection in get_all()) {
ImportID? current_import_id = current_collection.get_last_import_id();
if (current_import_id == null)
continue;
if (current_import_id.id > last_import_id.id)
last_import_id = current_import_id;
}
// VALA: can't use the ternary operator here because of bug 616897 : "Mixed nullability in
// ternary operator fails"
if (last_import_id.id == ImportID.INVALID)
return null;
else
return last_import_id;
}
public Gee.Collection<string> get_source_ids_for_event_id(EventID event_id) {
Gee.ArrayList<string> result = new Gee.ArrayList<string>();
foreach (MediaSourceCollection current_collection in get_all()) {
result.add_all(current_collection.get_event_source_ids(event_id));
}
return result;
}
public MediaSourceCollection? get_collection_for_file(File file) {
foreach (MediaSourceCollection collection in get_all()) {
if (collection.is_file_recognized(file))
return collection;
}
return null;
}
public bool is_valid_source_id(string? source_id) {
if (is_string_empty(source_id)) {
return false;
}
return (source_id.has_prefix(Photo.TYPENAME) || source_id.has_prefix(Video.TYPENAME + "-"));
}
}
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