From: Jukka Kurkela <jukka.kurkela@gmail.com>
Date: Wed, 24 Feb 2021 21:27:11 +0000 (+0200)
Subject: Fix layout bug when there are no visible boxes (#8507)
X-Git-Tag: v3.0.0-beta.12~13
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5ab5552acb259b0c980c1a47d7e3820682cf0ff2;p=thirdparty%2FChart.js.git

Fix layout bug when there are no visible boxes (#8507)
---

diff --git a/src/core/core.layouts.js b/src/core/core.layouts.js
index acb1b4ce2..7868eb676 100644
--- a/src/core/core.layouts.js
+++ b/src/core/core.layouts.js
@@ -344,7 +344,7 @@ export default {
     //
 
     const visibleVerticalBoxCount = verticalBoxes.reduce((total, wrap) =>
-      wrap.box.options && wrap.box.options.display === false ? total : total + 1, 0);
+      wrap.box.options && wrap.box.options.display === false ? total : total + 1, 0) || 1;
 
     const params = Object.freeze({
       outerWidth: width,
diff --git a/test/fixtures/core.layouts/no-boxes-all-padding.js b/test/fixtures/core.layouts/no-boxes-all-padding.js
new file mode 100644
index 000000000..ae8500851
--- /dev/null
+++ b/test/fixtures/core.layouts/no-boxes-all-padding.js
@@ -0,0 +1,39 @@
+module.exports = {
+  config: {
+    type: 'line',
+    data: {
+      labels: [0],
+      datasets: [{
+        data: [0],
+        radius: 16,
+        backgroundColor: 'red'
+      }],
+    },
+    options: {
+      plugins: {
+        legend: false,
+        tooltip: false,
+        title: false,
+        filler: false
+      },
+      scales: {
+        x: {
+          display: false,
+          offset: true
+        },
+        y: {
+          display: false
+        }
+      },
+      layout: {
+        padding: 16
+      }
+    }
+  },
+  options: {
+    canvas: {
+      height: 32,
+      width: 32
+    }
+  }
+};
diff --git a/test/fixtures/core.layouts/no-boxes-all-padding.png b/test/fixtures/core.layouts/no-boxes-all-padding.png
new file mode 100644
index 000000000..6bade811f
Binary files /dev/null and b/test/fixtures/core.layouts/no-boxes-all-padding.png differ