From ecca57f489ebba6bdfb7e77e4766071ad44e25a5 Mon Sep 17 00:00:00 2001 From: Bill Thiede Date: Wed, 19 Feb 2020 21:20:15 -0800 Subject: [PATCH] Basic slideshow with forward and backward navigation. --- react-slideshow/package.json | 2 + react-slideshow/src/App.css | 4 + react-slideshow/src/App.js | 180 +++++++++++++++++++++++++++++++---- react-slideshow/yarn.lock | 100 ++++++++++++++++++- 4 files changed, 263 insertions(+), 23 deletions(-) diff --git a/react-slideshow/package.json b/react-slideshow/package.json index a349b73..729ea9a 100644 --- a/react-slideshow/package.json +++ b/react-slideshow/package.json @@ -1,6 +1,7 @@ { "name": "react-slideshow", "version": "0.1.0", + "proxy": "http://localhost:4000", "private": true, "dependencies": { "@testing-library/jest-dom": "^4.2.4", @@ -8,6 +9,7 @@ "@testing-library/user-event": "^7.1.2", "react": "^16.12.0", "react-dom": "^16.12.0", + "react-router-dom": "^5.1.2", "react-scripts": "3.4.0" }, "scripts": { diff --git a/react-slideshow/src/App.css b/react-slideshow/src/App.css index 74b5e05..41c7c05 100644 --- a/react-slideshow/src/App.css +++ b/react-slideshow/src/App.css @@ -1,3 +1,7 @@ +body, html, #root { + height: 100%; +} + .App { text-align: center; } diff --git a/react-slideshow/src/App.js b/react-slideshow/src/App.js index ce9cbd2..c29cf84 100644 --- a/react-slideshow/src/App.js +++ b/react-slideshow/src/App.js @@ -1,26 +1,166 @@ import React from 'react'; -import logo from './logo.svg'; +import { + HashRouter as Router, + Switch, + Route, + useParams +} from "react-router-dom"; + import './App.css'; -function App() { - return ( -
-
- logo -

- Edit src/App.js and save to reload. -

- - Learn React - -
-
- ); +const IMAGE_CHUNK = 256; +const roundup = (v, mod) => { + let r = v % mod; + if (r === 0) { + return v; + } else { + return v + (mod - r); + } +}; + +class Album extends React.Component { + constructor(props) { + super(props); + this.state = { + error: null, + mediaItems: null, + idx: 0, + }; + } + componentDidMount() { + let {album} = this.props; + fetch(process.env.PUBLIC_URL + `/api/album/${album}`) + .then(res => res.json()) + .then( + (result) => this.setState({mediaItems: result}), + (error) => this.setState({error}), + ); + } + render() { + // TODO(wathiede): fade transition. + // TODO(wathiede): pair-up portrait orientation images. + // TODO(wathiede): fetch an image that maintains the originals aspect ratio + let w = window.innerWidth * window.devicePixelRatio; + let h = window.innerHeight * window.devicePixelRatio; + let ratio = w/h; + if (ratio > 1) { + // Landscape image + w = roundup(w, IMAGE_CHUNK); + h = (w/ratio).toFixed(); + } else { + // Portrait image + h = roundup(h, IMAGE_CHUNK); + w = (h/ratio).toFixed(); + } + + //let w = roundup(window.innerWidth*window.devicePixelRatio, IMAGE_CHUNK); + //let h = roundup(window.innerHeight*window.devicePixelRatio, IMAGE_CHUNK); + let {idx, error, mediaItems} = this.state; + if (error !== null) { + return

Error: {JSON.stringify(error)}

; + } else if (mediaItems !== null) { + let numImages = mediaItems.length; + let nextIdx = (idx+1)%numImages; + let prevIdx = (numImages+idx-1)%numImages; + let image = mediaItems[idx]; + let nextImage = mediaItems[nextIdx]; + let style = { + height: '100%', + width: '100%', + backgroundColor: 'black', + backgroundImage: `url(/api/image/${image.id}?w=${w}&h=${h})`, + backgroundRepeat: 'no-repeat', + backgroundPosition: 'center center', + backgroundSize: 'cover', + }; + let prefetchStyle = { + // display: 'none' + position: 'absolute', + right: 0, + bottom: 0, + width: '25%', + height: '25%', + }; + console.log(`window.devicePixelRatio ${window.devicePixelRatio}`); + return
{ + e.stopPropagation(); + this.setState({idx: nextIdx}) + }}> + { + e.stopPropagation(); + this.setState({idx: prevIdx}) + }} + src={`/api/image/${nextImage.id}?w=${w}&h=${h}`} alt="prefetch next" /> +
; + } else { + return

Loading...

; + } + } +} + +class AlbumIndex extends React.Component { + constructor(props) { + super(props); + this.state = { + error: null, + albums: null, + }; + } + componentDidMount() { + fetch(process.env.PUBLIC_URL + "/api/albums") + .then(res => res.json()) + .then( + (result) => this.setState({albums: result}), + (error) => this.setState({error}), + ); + } + render() { + let {error, albums} = this.state; + if (error !== null) { + return

Error: {JSON.stringify(error)}

; + } else if (albums !== null) { + return albums.map((a) => { + let img = unset; + if (a.coverPhotoMediaItemId !== undefined) { + img = { + } + + let figure =
+ {img} +
{ a.title || "No title" } - { a.mediaItemsCount || 0 } photos
+
; + return + { figure } + + }); + } else { + return

Loading...

; + } + } +} + +const AlbumRoute = () => { + // We can use the `useParams` hook here to access + // the dynamic pieces of the URL. + let { albumId } = useParams(); + return ; +} + +const App = () => { + return + + +
+ +
+ + + + + + } export default App; diff --git a/react-slideshow/yarn.lock b/react-slideshow/yarn.lock index fd1af30..8f2147f 100644 --- a/react-slideshow/yarn.lock +++ b/react-slideshow/yarn.lock @@ -841,7 +841,7 @@ "@babel/helper-plugin-utils" "^7.8.3" "@babel/plugin-transform-typescript" "^7.8.3" -"@babel/runtime@7.8.4", "@babel/runtime@^7.0.0", "@babel/runtime@^7.3.4", "@babel/runtime@^7.4.5", "@babel/runtime@^7.5.1", "@babel/runtime@^7.6.2", "@babel/runtime@^7.6.3", "@babel/runtime@^7.7.2", "@babel/runtime@^7.7.6": +"@babel/runtime@7.8.4", "@babel/runtime@^7.0.0", "@babel/runtime@^7.1.2", "@babel/runtime@^7.3.4", "@babel/runtime@^7.4.0", "@babel/runtime@^7.4.5", "@babel/runtime@^7.5.1", "@babel/runtime@^7.6.2", "@babel/runtime@^7.6.3", "@babel/runtime@^7.7.2", "@babel/runtime@^7.7.6": version "7.8.4" resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.8.4.tgz#d79f5a2040f7caa24d53e563aad49cbc05581308" integrity 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"https://registry.yarnpkg.com/history/-/history-4.10.1.tgz#33371a65e3a83b267434e2b3f3b1b4c58aad4cf3" + integrity sha512-36nwAD620w12kuzPAsyINPWJqlNbij+hpK1k9XRloDtym8mxzGYl2c17LnV6IAGB2Dmg4tEa7G7DlawS0+qjew== + dependencies: + "@babel/runtime" "^7.1.2" + loose-envify "^1.2.0" + resolve-pathname "^3.0.0" + tiny-invariant "^1.0.2" + tiny-warning "^1.0.0" + value-equal "^1.0.1" + hmac-drbg@^1.0.0: version "1.0.1" resolved "https://registry.yarnpkg.com/hmac-drbg/-/hmac-drbg-1.0.1.tgz#d2745701025a6c775a6c545793ed502fc0c649a1" @@ -4700,6 +4717,13 @@ hmac-drbg@^1.0.0: minimalistic-assert "^1.0.0" minimalistic-crypto-utils "^1.0.1" +hoist-non-react-statics@^3.1.0: + version "3.3.2" + resolved "https://registry.yarnpkg.com/hoist-non-react-statics/-/hoist-non-react-statics-3.3.2.tgz#ece0acaf71d62c2969c2ec59feff42a4b1a85b45" + integrity sha512-/gGivxi8JPKWNm/W0jSmzcMPpfpPLc3dY/6GxhX2hQ9iGj3aDfklV4ET7NjKpSinLpJ5vafa9iiGIEZg10SfBw== + dependencies: + react-is "^16.7.0" + hosted-git-info@^2.1.4: version "2.8.5" resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.8.5.tgz#759cfcf2c4d156ade59b0b2dfabddc42a6b9c70c" @@ -5356,6 +5380,11 @@ is-wsl@^2.1.1: resolved "https://registry.yarnpkg.com/is-wsl/-/is-wsl-2.1.1.tgz#4a1c152d429df3d441669498e2486d3596ebaf1d" integrity sha512-umZHcSrwlDHo2TGMXv0DZ8dIUGunZ2Iv68YZnrmCiBPkZ4aaOhtv7pXJKeki9k3qJ3RJr0cDyitcl5wEH3AYog== +isarray@0.0.1: + version "0.0.1" + resolved "https://registry.yarnpkg.com/isarray/-/isarray-0.0.1.tgz#8a18acfca9a8f4177e09abfc6038939b05d1eedf" + integrity sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8= + isarray@1.0.0, isarray@^1.0.0, isarray@~1.0.0: version "1.0.0" resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11" @@ -6199,7 +6228,7 @@ loglevel@^1.6.6: resolved "https://registry.yarnpkg.com/loglevel/-/loglevel-1.6.7.tgz#b3e034233188c68b889f5b862415306f565e2c56" integrity sha512-cY2eLFrQSAfVPhCgH1s7JI73tMbg9YC3v3+ZHVW67sBS7UxWzNEk/ZBbSfLykBWHp33dqqtOv82gjhKEi81T/A== -loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.4.0: +loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.2.0, loose-envify@^1.3.1, loose-envify@^1.4.0: version "1.4.0" resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.4.0.tgz#71ee51fa7be4caec1a63839f7e682d8132d30caf" integrity sha512-lyuxPGr/Wfhrlem2CL/UcnUc1zcqKAImBDzukY7Y5F/yQiNdko6+fRLevlw1HgMySw7f611UIY408EtxRSoK3Q== @@ -6401,6 +6430,15 @@ min-indent@^1.0.0: resolved "https://registry.yarnpkg.com/min-indent/-/min-indent-1.0.0.tgz#cfc45c37e9ec0d8f0a0ec3dd4ef7f7c3abe39256" integrity sha1-z8RcN+nsDY8KDsPdTvf3w6vjklY= +mini-create-react-context@^0.3.0: + version "0.3.2" + resolved "https://registry.yarnpkg.com/mini-create-react-context/-/mini-create-react-context-0.3.2.tgz#79fc598f283dd623da8e088b05db8cddab250189" + integrity sha512-2v+OeetEyliMt5VHMXsBhABoJ0/M4RCe7fatd/fBy6SMiKazUSEt3gxxypfnk2SHMkdBYvorHRoQxuGoiwbzAw== + dependencies: + "@babel/runtime" "^7.4.0" + gud "^1.0.0" + tiny-warning "^1.0.2" + mini-css-extract-plugin@0.9.0: version "0.9.0" resolved "https://registry.yarnpkg.com/mini-css-extract-plugin/-/mini-css-extract-plugin-0.9.0.tgz#47f2cf07aa165ab35733b1fc97d4c46c0564339e" @@ -7168,6 +7206,13 @@ path-to-regexp@0.1.7: resolved "https://registry.yarnpkg.com/path-to-regexp/-/path-to-regexp-0.1.7.tgz#df604178005f522f15eb4490e7247a1bfaa67f8c" integrity sha1-32BBeABfUi8V60SQ5yR6G/qmf4w= +path-to-regexp@^1.7.0: + version "1.8.0" + resolved "https://registry.yarnpkg.com/path-to-regexp/-/path-to-regexp-1.8.0.tgz#887b3ba9d84393e87a0a0b9f4cb756198b53548a" + integrity sha512-n43JRhlUKUAlibEJhPeir1ncUID16QnEjNpwzNdO3Lm4ywrBpBZ5oLD0I6br9evr1Y9JTqwRtAh7JLoOzAQdVA== + dependencies: + isarray "0.0.1" + path-type@^2.0.0: version "2.0.0" resolved "https://registry.yarnpkg.com/path-type/-/path-type-2.0.0.tgz#f012ccb8415b7096fc2daa1054c3d72389594c73" @@ -8249,11 +8294,40 @@ react-error-overlay@^6.0.6: resolved "https://registry.yarnpkg.com/react-error-overlay/-/react-error-overlay-6.0.6.tgz#ac4d9dc4c1b5c536c2c312bf66aa2b09bfa384e2" integrity sha512-Yzpno3enVzSrSCnnljmr4b/2KUQSMZaPuqmS26t9k4nW7uwJk6STWmH9heNjPuvqUTO3jOSPkHoKgO4+Dw7uIw== -react-is@^16.8.1, react-is@^16.8.4: +react-is@^16.6.0, react-is@^16.7.0, react-is@^16.8.1, react-is@^16.8.4: version "16.12.0" resolved "https://registry.yarnpkg.com/react-is/-/react-is-16.12.0.tgz#2cc0fe0fba742d97fd527c42a13bec4eeb06241c" integrity sha512-rPCkf/mWBtKc97aLL9/txD8DZdemK0vkA3JMLShjlJB3Pj3s+lpf1KaBzMfQrAmhMQB0n1cU/SUGgKKBCe837Q== +react-router-dom@^5.1.2: + version "5.1.2" + resolved "https://registry.yarnpkg.com/react-router-dom/-/react-router-dom-5.1.2.tgz#06701b834352f44d37fbb6311f870f84c76b9c18" + integrity 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+8685,11 @@ resolve-from@^4.0.0: resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-4.0.0.tgz#4abcd852ad32dd7baabfe9b40e00a36db5f392e6" integrity sha512-pb/MYmXstAkysRFx8piNI1tGFNQIFA3vkE3Gq4EuA1dF6gHp/+vgZqsCGJapvy8N3Q+4o7FwvquPJcnZ7RYy4g== +resolve-pathname@^3.0.0: + version "3.0.0" + resolved "https://registry.yarnpkg.com/resolve-pathname/-/resolve-pathname-3.0.0.tgz#99d02224d3cf263689becbb393bc560313025dcd" + integrity sha512-C7rARubxI8bXFNB/hqcp/4iUeIXJhJZvFPFPiSPRnhU5UPxzMFIl+2E6yY6c4k9giDJAhtV+enfA+G89N6Csng== + resolve-url-loader@3.1.1: version "3.1.1" resolved "https://registry.yarnpkg.com/resolve-url-loader/-/resolve-url-loader-3.1.1.tgz#28931895fa1eab9be0647d3b2958c100ae3c0bf0" @@ -9610,6 +9689,16 @@ timsort@^0.3.0: resolved "https://registry.yarnpkg.com/timsort/-/timsort-0.3.0.tgz#405411a8e7e6339fe64db9a234de11dc31e02bd4" integrity sha1-QFQRqOfmM5/mTbmiNN4R3DHgK9Q= +tiny-invariant@^1.0.2: + version "1.1.0" + resolved 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