Reorganize app source code

app/src/main/java/com/topjohnwu/magisk/utils/Utils.kt

@@ -0,0 +1,49 @@
+package com.topjohnwu.magisk.utils
+
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import android.os.Environment
+import android.widget.Toast
+import com.topjohnwu.magisk.R
+import com.topjohnwu.magisk.core.Config
+import com.topjohnwu.magisk.core.Const
+import com.topjohnwu.magisk.core.Info
+import com.topjohnwu.magisk.ktx.get
+import com.topjohnwu.superuser.internal.UiThreadHandler
+import java.io.File
+
+object Utils {
+
+    fun toast(msg: CharSequence, duration: Int) {
+        UiThreadHandler.run { Toast.makeText(get(), msg, duration).show() }
+    }
+
+    fun toast(resId: Int, duration: Int) {
+        UiThreadHandler.run { Toast.makeText(get(), resId, duration).show() }
+    }
+
+    fun showSuperUser(): Boolean {
+        return Info.env.isActive && (Const.USER_ID == 0
+                || Config.suMultiuserMode != Config.Value.MULTIUSER_MODE_OWNER_MANAGED)
+    }
+
+    fun openLink(context: Context, link: Uri) {
+        val intent = Intent(Intent.ACTION_VIEW, link)
+        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+        if (intent.resolveActivity(context.packageManager) != null) {
+            context.startActivity(intent)
+        } else {
+            toast(
+                R.string.open_link_failed_toast,
+                Toast.LENGTH_SHORT
+            )
+        }
+    }
+
+    fun ensureDownloadPath(path: String) =
+        File(Environment.getExternalStorageDirectory(), path).run {
+            if ((exists() && isDirectory) || mkdirs()) this else null
+        }
+
+}