Moving the underlying map out of the slippy component and handling window resize events.

src/components/map.tsx

@@ -1,91 +0,0 @@
-import react from 'react';
-import Slippy from './slippy/index';
-
-const Map: react.FC<{}> = (props: {}) => {
-  return (
-    <Slippy>
-      <div>
-        <div style={{ height: '256px' }}>
-          <img
-            alt=''
-            role='presentation'
-            src='https://tile.openstreetmap.org/14/11720/10052.png'
-            style={{ width: '256px', height: '256px', opacity: 1 }}
-          />
-          <img
-            alt=''
-            role='presentation'
-            src='https://tile.openstreetmap.org/14/11721/10052.png'
-            style={{ width: '256px', height: '256px', opacity: 1 }}
-          />
-          <img
-            alt=''
-            role='presentation'
-            src='https://tile.openstreetmap.org/14/11722/10052.png'
-            style={{ width: '256px', height: '256px', opacity: 1 }}
-          />
-          <img
-            alt=''
-            role='presentation'
-            src='https://tile.openstreetmap.org/14/11723/10052.png'
-            style={{ width: '256px', height: '256px', opacity: 1 }}
-          />
-        </div>
-        <div style={{ height: '256px' }}>
-          <img
-            alt=''
-            role='presentation'
-            src='https://tile.openstreetmap.org/14/11720/10053.png'
-            style={{ width: '256px', height: '256px', opacity: 1 }}
-          />
-          <img
-            alt=''
-            role='presentation'
-            src='https://tile.openstreetmap.org/14/11721/10053.png'
-            style={{ width: '256px', height: '256px', opacity: 1 }}
-          />
-          <img
-            alt=''
-            role='presentation'
-            src='https://tile.openstreetmap.org/14/11722/10053.png'
-            style={{ width: '256px', height: '256px', opacity: 1 }}
-          />
-          <img
-            alt=''
-            role='presentation'
-            src='https://tile.openstreetmap.org/14/11723/10053.png'
-            style={{ width: '256px', height: '256px', opacity: 1 }}
-          />
-        </div>
-        <div style={{ height: '256px' }}>
-          <img
-            alt=''
-            role='presentation'
-            src='https://tile.openstreetmap.org/14/11720/10054.png'
-            style={{ width: '256px', height: '256px', opacity: 1 }}
-          />
-          <img
-            alt=''
-            role='presentation'
-            src='https://tile.openstreetmap.org/14/11721/10054.png'
-            style={{ width: '256px', height: '256px', opacity: 1 }}
-          />
-          <img
-            alt=''
-            role='presentation'
-            src='https://tile.openstreetmap.org/14/11722/10054.png'
-            style={{ width: '256px', height: '256px', opacity: 1 }}
-          />
-          <img
-            alt=''
-            role='presentation'
-            src='https://tile.openstreetmap.org/14/11723/10054.png'
-            style={{ width: '256px', height: '256px', opacity: 1 }}
-          />
-        </div>
-      </div>
-    </Slippy>
-  );
-};
-
-export default Map;

src/components/map/map.tsx

@@ -0,0 +1,109 @@
+import react, { useMemo, useEffect } from 'react';
+import { useDispatch, useSelector } from 'react-redux';
+import _ from 'lodash';
+import { MapState, mapActions } from '../../store/map';
+
+const Map: react.FC<{}> = (props: {}) => {
+  const dispatch = useDispatch();
+
+  const mapState = useSelector((state: { map: MapState }) => state.map);
+
+  console.log(`mapState: ${JSON.stringify(mapState)}`);
+
+  const resizeHandler = () => {
+    dispatch(mapActions.resize());
+  };
+  const debouncedResizeHandler = useMemo(
+    () => _.debounce(resizeHandler, 500),
+    []
+  );
+
+  useEffect(() => {
+    window.addEventListener('resize', debouncedResizeHandler);
+  }, []);
+
+  return (
+    <div>
+      <div style={{ height: '256px' }}>
+        <img
+          alt=''
+          role='presentation'
+          src='https://tile.openstreetmap.org/14/11720/10052.png'
+          style={{ width: '256px', height: '256px', opacity: 1 }}
+        />
+        <img
+          alt=''
+          role='presentation'
+          src='https://tile.openstreetmap.org/14/11721/10052.png'
+          style={{ width: '256px', height: '256px', opacity: 1 }}
+        />
+        <img
+          alt=''
+          role='presentation'
+          src='https://tile.openstreetmap.org/14/11722/10052.png'
+          style={{ width: '256px', height: '256px', opacity: 1 }}
+        />
+        <img
+          alt=''
+          role='presentation'
+          src='https://tile.openstreetmap.org/14/11723/10052.png'
+          style={{ width: '256px', height: '256px', opacity: 1 }}
+        />
+      </div>
+      <div style={{ height: '256px' }}>
+        <img
+          alt=''
+          role='presentation'
+          src='https://tile.openstreetmap.org/14/11720/10053.png'
+          style={{ width: '256px', height: '256px', opacity: 1 }}
+        />
+        <img
+          alt=''
+          role='presentation'
+          src='https://tile.openstreetmap.org/14/11721/10053.png'
+          style={{ width: '256px', height: '256px', opacity: 1 }}
+        />
+        <img
+          alt=''
+          role='presentation'
+          src='https://tile.openstreetmap.org/14/11722/10053.png'
+          style={{ width: '256px', height: '256px', opacity: 1 }}
+        />
+        <img
+          alt=''
+          role='presentation'
+          src='https://tile.openstreetmap.org/14/11723/10053.png'
+          style={{ width: '256px', height: '256px', opacity: 1 }}
+        />
+      </div>
+      <div style={{ height: '256px' }}>
+        <img
+          alt=''
+          role='presentation'
+          src='https://tile.openstreetmap.org/14/11720/10054.png'
+          style={{ width: '256px', height: '256px', opacity: 1 }}
+        />
+        <img
+          alt=''
+          role='presentation'
+          src='https://tile.openstreetmap.org/14/11721/10054.png'
+          style={{ width: '256px', height: '256px', opacity: 1 }}
+        />
+        <img
+          alt=''
+          role='presentation'
+          src='https://tile.openstreetmap.org/14/11722/10054.png'
+          style={{ width: '256px', height: '256px', opacity: 1 }}
+        />
+        <img
+          alt=''
+          role='presentation'
+          src='https://tile.openstreetmap.org/14/11723/10054.png'
+          style={{ width: '256px', height: '256px', opacity: 1 }}
+        />
+      </div>
+    </div>
+  );
+};
+
+export default Map;

src/components/slippy/index.tsx

@@ -1,12 +1,12 @@
 import react from 'react';
-import { useSelector } from 'react-redux';
 
 import MouseHandler from './mouse-handler';
-import Layer from './layer';
 
 import '../../theme/slippy.css';
 import SingleTouchHandler from './single-touch-handler';
 import DoubleTouchHandler from './double-touch-handler';
+import { useSelector } from 'react-redux';
+import { MapState } from '../../store/map';
 
 export interface Point {
   x: number;
@@ -24,19 +24,25 @@ export interface Scale {
   };
 }
 
-interface ViewportProps {
-  children: any;
-}
-
-const Slippy: react.FC<ViewportProps> = (props: ViewportProps) => {
+const Slippy: react.FC<{}> = () => {
   //console.log(`--- Rendering viewport, props: ${JSON.stringify(props)} ---`);
 
+  const viewport = useSelector(
+    (state: { map: MapState }) => state.map.viewport
+  );
+
   return (
     <div className='slippy'>
       <MouseHandler>
         <SingleTouchHandler>
           <DoubleTouchHandler>
-            <Layer>{props.children}</Layer>
+            <div
+              style={{
+                position: 'fixed',
+                width: viewport.width + 'px',
+                height: viewport.height + 'px',
+              }}
+            />
           </DoubleTouchHandler>
         </SingleTouchHandler>
       </MouseHandler>

src/components/slippy/mouse-handler.tsx

@@ -1,5 +1,5 @@
-import react, { useCallback, useState } from 'react';
-import { useDispatch, useSelector } from 'react-redux';
+import react, { useState } from 'react';
+import { useDispatch } from 'react-redux';
 
 import _ from 'lodash';