big picture

site.css

@@ -30,3 +30,42 @@ h1 {
 .Grid img {
 	cursor: pointer;
 }
+
+.BigPicture {
+	background-color: rgba(0, 0, 0, 0.6);
+	bottom: 0;
+	display: flex;
+	flex-direction: column;
+	left: 0;
+	padding: 30px;
+	position: fixed;
+	right: 0;
+	top: 0;
+}
+
+.BigPicture-image {
+	background-position: center;
+	background-repeat: no-repeat;
+	background-size: contain;
+	flex: 1 1 auto;
+}
+
+.BigPicture-footer {
+	align-self: center;
+	display: flex;
+	flex: 0 0 auto;
+	justify-content: space-between;
+	margin-top: 30px;
+	max-width: 200px;
+	width: 100%;
+}
+
+.BigPicture-footerLink {
+	color: #69c;
+	cursor: pointer;
+	text-decoration: none;
+}
+
+.BigPicture-footerLink:hover {
+	text-decoration: underline;
+}

src/components/big_picture.tsx

@@ -0,0 +1,38 @@
+import * as Model from "../model";
+
+import * as React from "react";
+
+export interface Props {
+    src: string;
+    image: Model.Image;
+    onClose: () => void;
+    width: number;
+}
+
+export class BigPicture extends React.PureComponent<Props, {}> {
+    static displayName = "BigPicture";
+
+    render() {
+        const src = `img/1600/${this.props.src}`;
+        return <div className="BigPicture">
+            <div
+                className="BigPicture-image"
+                style={{
+                    backgroundImage: `url(${src})`
+                }}>
+            </div>
+            <div className="BigPicture-footer">
+                <a className="BigPicture-footerLink"
+                    href={`img/${this.props.src}`}
+                    target="_blank">
+                    Download
+                </a>
+                <span className="BigPicture-footerLink"
+                    onClick={this.props.onClose}
+                    tabIndex={1} >
+                    Close
+                </span>
+            </div>
+        </div>;
+    }
+}

src/components/grid.tsx

@@ -6,7 +6,6 @@ import * as React from "react";
 export interface Props {
     images: Model.Images;
     onImageSelected: (key: string) => void;
-    selectedImage: string | null;
     width: number;
 }
 
@@ -52,7 +51,6 @@ export class Grid extends React.PureComponent<Props, {}> {
                 return <Picture
                     image={image}
                     onClick={() => this.props.onImageSelected(key)}
-                    selected={this.props.selectedImage === key}
                     src={key}
                     key={key}
                     width={image.width/image.height * scale}

src/components/picture.tsx

@@ -6,7 +6,6 @@ export interface Props {
     src: string;
     image: Model.Image;
     onClick: () => void;
-    selected?: boolean;
     width: number;
 }
 
@@ -16,11 +15,10 @@ export class Picture extends React.PureComponent<Props, {}> {
     render() {
         const src = `img/600/${this.props.src}`;
         return <img
-            className={ this.props.selected ? "Picture-selected" : ""}
             onClick={this.props.onClick}
             srcSet={this._srcset()}
             src={src}
-            width={ this.props.selected ? "100%" : this.props.width + "px" }
+            width={ this.props.width + "px" }
         />;
     }
 

src/components/root.tsx

@@ -1,3 +1,4 @@
+import { BigPicture } from "./big_picture";
 import { Grid } from "./grid";
 import * as Model from "../model";
 
@@ -7,16 +8,15 @@ export interface Props {}
 
 export interface State {
     images: Model.Images;
-    selectedIamge?: string | null;
+    selectedImage?: string | null;
     width: number;
 }
 
 export class Root extends React.PureComponent<Props, State> {
     static displayName = "Root";
 
-    state = {
+    state: State = {
         images: {},
-        selectedImage: null,
         width: window.innerWidth
     }
 
@@ -29,24 +29,52 @@ export class Root extends React.PureComponent<Props, State> {
         window.onresize = () => {
             this.setState({ width: window.innerWidth });
         }
+
+        window.onpopstate = this._loadHash;
+
+        this._loadHash();
     }
 
     render() {
         return <div className="Root">
                 <h1>Ski</h1>
                 <hr />
+                { this._bigPicture() }
                 <Grid
                     images={ this.state.images }
                     onImageSelected={ this._onImageSelected }
-                    selectedImage={ this.state.selectedImage }
                     width={ this.state.width } />
             </div>;
     }
 
+    private _bigPicture = () => {
+        if (this.state.selectedImage && this.state.images[this.state.selectedImage]) {
+            return <BigPicture
+                image={this.state.images[this.state.selectedImage]}
+                src={this.state.selectedImage}
+                onClose={this._showGrid}
+                width={this.state.width}
+            />
+        } else {
+            return null;
+        }
+    }
+
+    private _loadHash = () => {
+        if (window.location.hash.length > 0) {
+            this.setState({ selectedImage: window.location.hash.slice(1) });
+        } else {
+            this.setState({ selectedImage: null });
+        }
+    }
+
     private _onImageSelected = (key: string) => {
-        this.setState(state => ({
-            ...state,
-            selectedImage: key
-        }));
+        this.setState({ selectedImage: key });
+        window.history.pushState(null, "", `#${key}`);
+    }
+
+    private _showGrid = () => {
+        this.setState({ selectedImage: null });
+        window.history.pushState(null, "", "#");
     }
 }