From 1fe1d13c600b7dfe421b3b99b833b7d5d1232724 Mon Sep 17 00:00:00 2001
From: Dennis Fink
Date: Thu, 23 Jul 2026 00:18:21 +0200
Subject: Add GPX trail maps to blog posts

This adds a trail flow block so posts can include attached GPX files as
interactive maps with route display, elevation charts, activity
summaries, and start/finish markers.

The trail assets are loaded only when needed, keeping the shared
templates clean while vendoring the Leaflet dependencies required for
offline, self-hosted map rendering.
---
 .../vendor/leaflet-elevation/src/handlers/heart.js | 53 ++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 assets/static/vendor/leaflet-elevation/src/handlers/heart.js

(limited to 'assets/static/vendor/leaflet-elevation/src/handlers/heart.js')

diff --git a/assets/static/vendor/leaflet-elevation/src/handlers/heart.js b/assets/static/vendor/leaflet-elevation/src/handlers/heart.js
new file mode 100644
index 0000000..1930f60
--- /dev/null
+++ b/assets/static/vendor/leaflet-elevation/src/handlers/heart.js
@@ -0,0 +1,53 @@
+export function Heart() {
+
+    const _ = L.Control.Elevation.Utils;
+
+    return {
+        name: 'heart',      // <-- Your custom option name (eg. "heart: true")
+        unit: 'bpm',
+        meta: 'hr',         // <-- point.meta.hr
+        coordinateProperties: ["heart", "heartRates", "heartRate"], // List of GPX Extensions ("coordinateProperties") to be handled by "@tmcw/toGeoJSON"
+        pointToAttr: (point, i) => (point.hr ?? point.meta.hr ?? point.prev('heart')) || 0,
+		stats: { max: _.iMax, min: _.iMin, avg: _.iAvg },
+        scale: {
+            axis       : "y",
+            position   : "left",
+            scale      : { min: -1, max: +1 },
+            tickPadding: 25,
+            labelX     : -30,
+            labelY     : -8,
+        },
+        path: {
+            label        : 'ECG',
+            yAttr        : 'heart',
+            scaleX       : 'distance',
+            scaleY       : 'heart',
+            color        : 'white',
+            strokeColor  : 'red',
+            strokeOpacity: "0.85",
+            fillOpacity  : "0.1",
+        },
+        tooltip: {
+            chart: (item) => L._("hr: ") + item.heart + " " + 'bpm',
+            marker: (item) => Math.round(item.heart) + " " + 'bpm',
+            order: 1
+        },
+        summary: {
+            "minbpm": {
+                label: "Min BPM: ",
+                value: (track, unit) => Math.round(track.heart_min || 0) + '&nbsp;' + unit,
+                // order: 30
+            },
+            "maxbpm": {
+                label: "Max BPM: ",
+                value: (track, unit) => Math.round(track.heart_max || 0) + '&nbsp;' + unit,
+                // order: 30
+            },
+            "avgbpm": {
+                label: "Avg BPM: ",
+                value: (track, unit) => Math.round(track.heart_avg || 0) + '&nbsp;' + unit,
+                // order: 20
+            },
+        }
+    };
+};
\ No newline at end of file
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