Today Widget auto reconnect to aria2

Author: shincurry

Maria Widget/Base.lproj/TodayViewController.xib

@@ -1,7 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="11201" systemVersion="16A319" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="11762" systemVersion="16C67" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
     <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="11201"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="11762"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <objects>
         <customObject id="-2" userLabel="File's Owner" customClass="TodayViewController" customModule="Maria_Widget" customModuleProvider="target">
@@ -81,7 +82,7 @@
                     <rect key="frame" x="79" y="73" width="157" height="19"/>
                     <textFieldCell key="cell" scrollable="YES" lineBreakMode="clipping" sendsActionOnEndEditing="YES" alignment="center" title="Please run aria2 first" id="Twu-sf-eXL">
                         <font key="font" metaFont="system" size="16"/>
-                        <color key="textColor" name="gridColor" catalog="System" colorSpace="catalog"/>
+                        <color key="textColor" red="0.37254901960784315" green="0.37254901960784315" blue="0.37254901960784315" alpha="1" colorSpace="calibratedRGB"/>
                         <color key="backgroundColor" name="controlColor" catalog="System" colorSpace="catalog"/>
                     </textFieldCell>
                 </textField>

Maria Widget/Maria.swift

@@ -10,7 +10,7 @@ import Cocoa
 import Aria2RPC
 
 class Maria {
-    var rpc: Aria2RPC!
+    var rpc: Aria2RPC?
 
     static let shared = Maria()
 

Maria Widget/TodayViewController.swift

@@ -40,7 +40,10 @@ class TodayViewController: NSViewController, NCWidgetProviding {
 
     var maria = Maria.shared
 
-    var timer: Timer!
+    var timer: Timer?
+    
+    var timeToConnectAria = 4
+    var countdownTimeToConnectAria = 4
     var authorized: Bool = true
 
     func widgetPerformUpdate(_ completionHandler: ((NCUpdateResult) -> Void)) {
@@ -67,9 +70,25 @@ class TodayViewController: NSViewController, NCWidgetProviding {
     }
 
     func updateListStatus() {
-        if maria.rpc?.status == .connected {
+        switch maria.rpc!.status {
+        case .disconnected:
+            countdownTimeToConnectAria -= 1
+            if countdownTimeToConnectAria == 0 {
+                maria.rpc?.connect()
+                timeToConnectAria *= 2
+                countdownTimeToConnectAria = timeToConnectAria
+            } else {
+                let localized = NSLocalizedString("aria2.status.disconnected", comment: "")
+                alertLabel.stringValue = String(format: localized, countdownTimeToConnectAria)
+            }
+        case .connected:
+            timeToConnectAria = 4
+            countdownTimeToConnectAria = 4
+            
             maria.rpc?.getGlobalStatus()
             maria.rpc?.tellActive()
+        default:
+            break
         }
     }
 
@@ -120,7 +139,6 @@ class TodayViewController: NSViewController, NCWidgetProviding {
                 self.taskListScrollViewHeightConstraint.constant = 0
             case .disconnected:
                 self.noTaskAlertLabel.isHidden = true
-                self.alertLabel.stringValue = NSLocalizedString("aria2.status.disconnected", comment: "")
                 self.taskListScrollViewHeightConstraint.constant = 0
             }
         }
@@ -134,7 +152,7 @@ extension TodayViewController {
         timer = Timer.scheduledTimer(timeInterval: 1, target: self, selector: #selector(updateListStatus), userInfo: nil, repeats: true)
     }
     fileprivate func closeTimer() {
-        timer.invalidate()
+        timer?.invalidate()
         timer = nil
     }
 }