From 98362ca2e6a921e542b0c86374505182ff450d75 Mon Sep 17 00:00:00 2001
From: Zachary Blackwood <zachary@streamlit.io>
Date: Thu, 17 Mar 2022 15:54:15 -0400
Subject: [PATCH] Get map zoom (#39)

* Get map zoom

* Bump version
---
 setup.py                                | 2 +-
 streamlit_folium/frontend/src/index.tsx | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/setup.py b/setup.py
index 6640792..7fb8e46 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 
 setuptools.setup(
     name="streamlit_folium",
-    version="0.6.2",
+    version="0.6.3",
     author="Randy Zwitch",
     author_email="randy@streamlit.io",
     description="Render Folium objects in Streamlit",
diff --git a/streamlit_folium/frontend/src/index.tsx b/streamlit_folium/frontend/src/index.tsx
index 39f5a21..3639934 100644
--- a/streamlit_folium/frontend/src/index.tsx
+++ b/streamlit_folium/frontend/src/index.tsx
@@ -10,6 +10,7 @@ type GlobalData = {
   last_active_drawing: any,
   all_drawings: any,
   bounds: any;
+  zoom: any;
 };
 
 declare var __GLOBAL_DATA__: GlobalData;
@@ -40,12 +41,14 @@ function onRender(event: Event): void {
     const global_data = __GLOBAL_DATA__;
     let map = global_data.map;
     let bounds = map.getBounds();
+    let zoom = map.getZoom();
     Streamlit.setComponentValue({
       last_clicked: global_data.lat_lng_clicked,
       last_object_clicked: global_data.last_object_clicked,
       all_drawings: global_data.all_drawings,
       last_active_drawing: global_data.last_active_drawing,
       bounds: bounds,
+      zoom: zoom,
     })
   }
 
@@ -105,6 +108,7 @@ function onRender(event: Event): void {
             last_object_clicked: null,
             all_drawings: null,
             last_active_drawing: null,
+            zoom: null,
         };`;
         let replaced = fig + set_global_data;
         render_script.innerHTML = replaced;