From fa4115b714586ecfb8aebcde0303c1f3f8288761 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A2u=20Cao?= <raucao@kosmos.org>
Date: Wed, 21 Jan 2026 19:38:55 +0700
Subject: [PATCH] Pan map on mobile when pin obscured by sidebar

---
 app/components/map.gjs | 37 +++++++++++++++++++++++++++++++++++++
 app/styles/app.css     | 20 ++++++++++++++++++++
 2 files changed, 57 insertions(+)

diff --git a/app/components/map.gjs b/app/components/map.gjs
index 4f787bf..9c84d49 100644
--- a/app/components/map.gjs
+++ b/app/components/map.gjs
@@ -359,6 +359,8 @@ export default class MapComponent extends Component {
       // Force reflow
       void this.selectedPinElement.offsetWidth;
       this.selectedPinElement.classList.add('active');
+
+      this.panIfObscured(coords);
     } else {
       this.selectedPinElement.classList.remove('active');
       // Hide it effectively by moving it away or just relying on display:none in CSS
@@ -366,6 +368,41 @@ export default class MapComponent extends Component {
     }
   });
 
+  panIfObscured(coords) {
+    if (!this.mapInstance) return;
+
+    const size = this.mapInstance.getSize();
+    // Check if mobile (width <= 768px matches CSS)
+    if (size[0] > 768) return;
+
+    const pixel = this.mapInstance.getPixelFromCoordinate(coords);
+    const height = size[1];
+    
+    // Sidebar covers the bottom 50%
+    const splitPoint = height / 2;
+    
+    // If the pin is in the bottom half (y > splitPoint), it is obscured
+    if (pixel[1] > splitPoint) {
+       // Target position: Center of top half = height * 0.25
+       const targetY = height * 0.25;
+       const deltaY = pixel[1] - targetY;
+       
+       const view = this.mapInstance.getView();
+       const center = view.getCenter();
+       const resolution = view.getResolution();
+       
+       // Move the map center SOUTH (decrease Y) to move the pin UP (decrease pixel Y)
+       const deltaMapUnits = deltaY * resolution;
+       const newCenter = [center[0], center[1] - deltaMapUnits];
+       
+       view.animate({
+         center: newCenter,
+         duration: 500,
+         easing: (t) => t * (2 - t) // Ease-out
+       });
+    }
+  }
+
   // Re-fetch bookmarks when the version changes (triggered by parent action or service)
   updateBookmarks = modifier(() => {
     // Depend on the tracked storage.savedPlaces to automatically update when they change
diff --git a/app/styles/app.css b/app/styles/app.css
index c5a9eee..14b9b48 100644
--- a/app/styles/app.css
+++ b/app/styles/app.css
@@ -312,3 +312,23 @@ span.icon {
     opacity: 1;
   }
 }
+
+@media (max-width: 768px) {
+  .sidebar {
+    top: auto;
+    bottom: 0;
+    left: 0;
+    right: 0;
+    width: 100%;
+    height: 50vh;
+    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
+    border-top-left-radius: 16px;
+    border-top-right-radius: 16px;
+  }
+
+  .sidebar-content {
+    overflow-y: auto;
+    /* Ensure content doesn't get hidden behind bottom safe areas on mobile */
+    padding-bottom: env(safe-area-inset-bottom, 20px);
+  }
+}