From 58d062ad758ea019d05292d3809a4cb93c623bd7 Mon Sep 17 00:00:00 2001
From: itsmattkc <itsmattkc@gmail.com>
Date: Wed, 12 May 2021 11:09:57 +1000
Subject: [PATCH] viewer: run queue if windows are still active

Fixes #1628
---
 app/widget/viewer/viewer.cpp       | 8 +++++++-
 app/widget/viewer/viewerwindow.cpp | 2 ++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/app/widget/viewer/viewer.cpp b/app/widget/viewer/viewer.cpp
index 04de4900e..7e8c31d97 100644
--- a/app/widget/viewer/viewer.cpp
+++ b/app/widget/viewer/viewer.cpp
@@ -605,7 +605,7 @@ void ViewerWidget::PlayInternal(int speed, bool in_to_out_only)
   controls_->ShowPauseButton();
 
   // Attempt to fill playback queue
-  if (display_widget_->isVisible()) {
+  if (display_widget_->isVisible() || !windows_.isEmpty()) {
     prequeue_length_ = DeterminePlaybackQueueSize();
 
     if (prequeue_length_ > 0) {
@@ -1243,6 +1243,12 @@ void ViewerWidget::PlaybackTimerUpdate()
   if (display_widget_->isVisible()) {
     // Updating display widget
     UpdateTextureFromNode();
+  } else if (!windows_.empty()) {
+    // We still run the queue if windows are visible even if our own display widget isn't visible
+    rational t = GetTime();
+    while (!playback_queue_.empty() && playback_queue_.front().timestamp != t) {
+      PopOldestFrameFromPlaybackQueue();
+    }
   }
 }
 
diff --git a/app/widget/viewer/viewerwindow.cpp b/app/widget/viewer/viewerwindow.cpp
index 7f6a7592b..eb4ba0531 100644
--- a/app/widget/viewer/viewerwindow.cpp
+++ b/app/widget/viewer/viewerwindow.cpp
@@ -119,6 +119,8 @@ void ViewerWindow::UpdateFromQueue()
       queue_.pop_front();
     }
   }
+
+  display_widget_->update();
 }
 
 void ViewerWindow::UpdateMatrix()