1 files changed, 100 insertions, 0 deletions
diff --git a/mut/dmenu-mac/src/AppListProvider.swift b/mut/dmenu-mac/src/AppListProvider.swift
new file mode 100644
index 0000000..7aa3ad8
--- /dev/null
+++ b/mut/dmenu-mac/src/AppListProvider.swift
@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2020 Jose Pereira <onaips@gmail.com>.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import Foundation
+import FileWatcher
+import Fuse
+
+/**
+ * Provide a list of launcheable apps for the OS
+ */
+class AppListProvider: ListProvider {
+
+    var appDirDict = [String: Bool]()
+
+    var appList = [URL]()
+
+    init() {
+        let applicationDir = NSSearchPathForDirectoriesInDomains(
+            .applicationDirectory, .localDomainMask, true)[0]
+
+        // Catalina moved default applications under a different mask.
+        let systemApplicationDir = NSSearchPathForDirectoriesInDomains(
+            .applicationDirectory, .systemDomainMask, true)[0]
+
+        // appName to dir recursivity key/valye dict
+        appDirDict[applicationDir] = true
+        appDirDict[systemApplicationDir] = true
+        appDirDict["/System/Library/CoreServices/"] = false
+
+        initFileWatch(Array(appDirDict.keys))
+        updateAppList()
+    }
+
+    func initFileWatch(_ dirs: [String]) {
+        let filewatcher = FileWatcher(dirs)
+        filewatcher.callback = {_ in
+            self.updateAppList()
+        }
+        filewatcher.start()
+    }
+
+    func updateAppList() {
+        var newAppList = [URL]()
+        appDirDict.keys.forEach { path in
+            let urlPath = URL(fileURLWithPath: path, isDirectory: true)
+            let list = getAppList(urlPath, recursive: appDirDict[path]!)
+            newAppList.append(contentsOf: list)
+        }
+        appList = newAppList
+    }
+
+    func getAppList(_ appDir: URL, recursive: Bool = true) -> [URL] {
+        var list = [URL]()
+        let fileManager = FileManager.default
+
+        do {
+            let subs = try fileManager.contentsOfDirectory(atPath: appDir.path)
+
+            for sub in subs {
+                let dir = appDir.appendingPathComponent(sub)
+
+                if dir.pathExtension == "app" {
+                    list.append(dir)
+                } else if dir.hasDirectoryPath && recursive {
+                    list.append(contentsOf: self.getAppList(dir))
+                }
+            }
+        } catch {
+            NSLog("Error on getAppList: %@", error.localizedDescription)
+        }
+        return list
+    }
+
+    func get() -> [ListItem] {
+        return appList.map({ListItem(name: $0.deletingPathExtension().lastPathComponent, data: $0)})
+    }
+
+    func doAction(item: ListItem) {
+        guard let app: URL = item.data as? URL else {
+            NSLog("Cannot do action on item \(item.name)")
+            return
+        }
+        DispatchQueue.main.async {
+            NSWorkspace.shared.open(app)
+        }
+    }
+}