From b5fa0bceab36947576bc51b46046d991015b3737 Mon Sep 17 00:00:00 2001
From: Shadowfacts <me@shadowfacts.net>
Date: Mon, 16 Mar 2020 19:07:30 -0400
Subject: [PATCH] Fix pasting using compose app shortcut while app isn't
 running

---
 Tusker/Controllers/MastodonController.swift       | 15 ++++++++++-----
 .../Screens/Compose/ComposeViewController.swift   | 12 +++++++++---
 2 files changed, 19 insertions(+), 8 deletions(-)

diff --git a/Tusker/Controllers/MastodonController.swift b/Tusker/Controllers/MastodonController.swift
index 5e2ae194..7bde68b4 100644
--- a/Tusker/Controllers/MastodonController.swift
+++ b/Tusker/Controllers/MastodonController.swift
@@ -88,11 +88,16 @@ class MastodonController {
         }
     }
     
-    func getOwnInstance() {
-        let request = Client.getInstance()
-        run(request) { (response) in
-            guard case let .success(instance, _) = response else { fatalError() }
-            self.instance = instance
+    func getOwnInstance(completion: ((Instance) -> Void)? = nil) {
+        if let instance = self.instance {
+            completion?(instance)
+        } else {
+            let request = Client.getInstance()
+            run(request) { (response) in
+                guard case let .success(instance, _) = response else { fatalError() }
+                self.instance = instance
+                completion?(instance)
+            }
         }
     }
     
diff --git a/Tusker/Screens/Compose/ComposeViewController.swift b/Tusker/Screens/Compose/ComposeViewController.swift
index 9aa40dae..8e89cc09 100644
--- a/Tusker/Screens/Compose/ComposeViewController.swift
+++ b/Tusker/Screens/Compose/ComposeViewController.swift
@@ -137,9 +137,15 @@ class ComposeViewController: UIViewController {
         
         // we have to set the font here, because the monospaced digit font is not available in IB
         charactersRemainingLabel.font = .monospacedDigitSystemFont(ofSize: 17, weight: .regular)
-        updateCharactersRemaining()
         updatePlaceholder()
-        
+        // if the compose screen is opened via the home screen shortcut and app isn't running,
+        // the msatodon instance may not have been loaded yet
+        mastodonController.getOwnInstance { (_) in
+            DispatchQueue.main.async {
+                self.updateCharactersRemaining()
+            }
+        }
+
         composeAttachmentsViewController = ComposeAttachmentsViewController(attachments: currentDraft?.attachments ?? [], mastodonController: mastodonController)
         composeRequiresAttachmentDescriptionsDidChange()
         composeAttachmentsViewController.delegate = self
@@ -266,7 +272,7 @@ class ComposeViewController: UIViewController {
     func updateCharactersRemaining() {
         let count = CharacterCounter.count(text: statusTextView.text)
         let cwCount = contentWarningEnabled ? (contentWarningTextField.text?.count ?? 0) : 0
-        let remaining = (mastodonController.instance.maxStatusCharacters ?? 500) - count - cwCount
+        let remaining = (mastodonController.instance?.maxStatusCharacters ?? 500) - count - cwCount
         if remaining < 0 {
             charactersRemainingLabel.textColor = .red
             compositionState.formUnion(.tooManyCharacters)