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-rw-r--r--src/citra_qt/game_list.cpp48
-rw-r--r--src/citra_qt/game_list.h4
2 files changed, 51 insertions, 1 deletions
diff --git a/src/citra_qt/game_list.cpp b/src/citra_qt/game_list.cpp
index 222c82b1c..db6f920ff 100644
--- a/src/citra_qt/game_list.cpp
+++ b/src/citra_qt/game_list.cpp
@@ -39,6 +39,7 @@ GameList::GameList(QWidget* parent) : QWidget{parent} {
connect(tree_view, &QTreeView::activated, this, &GameList::ValidateEntry);
connect(tree_view, &QTreeView::customContextMenuRequested, this, &GameList::PopupContextMenu);
+ connect(&watcher, &QFileSystemWatcher::directoryChanged, this, &GameList::RefreshGameDirectory);
// We must register all custom types with the Qt Automoc system so that we are able to use it
// with signals/slots. In this case, QList falls under the umbrells of custom types.
@@ -103,6 +104,12 @@ void GameList::PopulateAsync(const QString& dir_path, bool deep_scan) {
item_model->removeRows(0, item_model->rowCount());
emit ShouldCancelWorker();
+
+ auto watch_dirs = watcher.directories();
+ if (!watch_dirs.isEmpty()) {
+ watcher.removePaths(watch_dirs);
+ }
+ UpdateWatcherList(dir_path.toStdString(), deep_scan ? 256 : 0);
GameListWorker* worker = new GameListWorker(dir_path, deep_scan);
connect(worker, &GameListWorker::EntryReady, this, &GameList::AddEntry, Qt::QueuedConnection);
@@ -140,6 +147,45 @@ static bool HasSupportedFileExtension(const std::string& file_name) {
return GameList::supported_file_extensions.contains(file.suffix(), Qt::CaseInsensitive);
}
+void GameList::RefreshGameDirectory() {
+ if (!UISettings::values.gamedir.isEmpty() && current_worker != nullptr) {
+ LOG_INFO(Frontend, "Change detected in the games directory. Reloading game list.");
+ PopulateAsync(UISettings::values.gamedir, UISettings::values.gamedir_deepscan);
+ }
+}
+
+/**
+ * Adds the game list folder to the QFileSystemWatcher to check for updates.
+ *
+ * The file watcher will fire off an update to the game list when a change is detected in the game
+ * list folder.
+ *
+ * Notice: This method is run on the UI thread because QFileSystemWatcher is not thread safe and
+ * this function is fast enough to not stall the UI thread. If performance is an issue, it should
+ * be moved to another thread and properly locked to prevent concurrency issues.
+ *
+ * @param dir folder to check for changes in
+ * @param recursion 0 if recursion is disabled. Any positive number passed to this will add each
+ * directory recursively to the watcher and will update the file list if any of the folders
+ * change. The number determines how deep the recursion should traverse.
+ */
+void GameList::UpdateWatcherList(const std::string& dir, unsigned int recursion) {
+ const auto callback = [this, recursion](unsigned* num_entries_out, const std::string& directory,
+ const std::string& virtual_name) -> bool {
+ std::string physical_name = directory + DIR_SEP + virtual_name;
+
+ if (FileUtil::IsDirectory(physical_name)) {
+ UpdateWatcherList(physical_name, recursion - 1);
+ }
+ return true;
+ };
+
+ watcher.addPath(QString::fromStdString(dir));
+ if (recursion > 0) {
+ FileUtil::ForeachDirectoryEntry(nullptr, dir, callback);
+ }
+}
+
void GameListWorker::AddFstEntriesToGameList(const std::string& dir_path, unsigned int recursion) {
const auto callback = [this, recursion](unsigned* num_entries_out, const std::string& directory,
const std::string& virtual_name) -> bool {
@@ -182,6 +228,6 @@ void GameListWorker::run() {
}
void GameListWorker::Cancel() {
- disconnect(this, nullptr, nullptr, nullptr);
+ this->disconnect();
stop_processing = true;
}
diff --git a/src/citra_qt/game_list.h b/src/citra_qt/game_list.h
index e6b7eea0b..b141fa3a5 100644
--- a/src/citra_qt/game_list.h
+++ b/src/citra_qt/game_list.h
@@ -4,6 +4,7 @@
#pragma once
+#include <QFileSystemWatcher>
#include <QModelIndex>
#include <QSettings>
#include <QStandardItem>
@@ -46,8 +47,11 @@ private:
void DonePopulating();
void PopupContextMenu(const QPoint& menu_location);
+ void UpdateWatcherList(const std::string& path, unsigned int recursion);
+ void RefreshGameDirectory();
QTreeView* tree_view = nullptr;
QStandardItemModel* item_model = nullptr;
GameListWorker* current_worker = nullptr;
+ QFileSystemWatcher watcher;
};