Implement screenshot display functionality

frontend/package-lock.json

@@ -1356,6 +1356,25 @@
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+    },
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+      "version": "2.1.4",
+      "resolved": "https://registry.npmjs.org/@restart/context/-/context-2.1.4.tgz",
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+    },
+    "@restart/hooks": {
+      "version": "0.3.25",
+      "resolved": "https://registry.npmjs.org/@restart/hooks/-/hooks-0.3.25.tgz",
+      "integrity": "sha512-m2v3N5pxTsIiSH74/sb1yW8D9RxkJidGW+5Mfwn/lHb2QzhZNlaU1su7abSyT9EGf0xS/0waLjrf7/XxQHUk7w==",
+      "requires": {
+        "lodash": "^4.17.15",
+        "lodash-es": "^4.17.15"
+      }
+    },
     "@sheerun/mutationobserver-shim": {
       "version": "0.3.3",
       "resolved": "https://registry.npmjs.org/@sheerun/mutationobserver-shim/-/mutationobserver-shim-0.3.3.tgz",
@@ -1637,6 +1656,11 @@
         "@babel/types": "^7.3.0"
       }
     },
+    "@types/classnames": {
+      "version": "2.2.10",
+      "resolved": "https://registry.npmjs.org/@types/classnames/-/classnames-2.2.10.tgz",
+      "integrity": "sha512-1UzDldn9GfYYEsWWnn/P4wkTlkZDH7lDb0wBMGbtIQc9zXEQq7FlKBdZUn6OBqD8sKZZ2RQO2mAjGpXiDGoRmQ=="
+    },
     "@types/color-name": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/@types/color-name/-/color-name-1.1.1.tgz",
@@ -1664,6 +1688,11 @@
         "@types/node": "*"
       }
     },
+    "@types/invariant": {
+      "version": "2.2.33",
+      "resolved": "https://registry.npmjs.org/@types/invariant/-/invariant-2.2.33.tgz",
+      "integrity": "sha512-/jUNmS8d4bCKdqslfxW6dg/9Gksfzxz67IYfqApHn+HvHlMVXwYv2zpTDnS/yaK9BB0i0GlBTaYci0EFE62Hmw=="
+    },
     "@types/istanbul-lib-coverage": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/@types/istanbul-lib-coverage/-/istanbul-lib-coverage-2.0.3.tgz",
@@ -1733,6 +1762,14 @@
         "@types/react": "*"
       }
     },
+    "@types/react-transition-group": {
+      "version": "4.4.0",
+      "resolved": "https://registry.npmjs.org/@types/react-transition-group/-/react-transition-group-4.4.0.tgz",
+      "integrity": "sha512-/QfLHGpu+2fQOqQaXh8MG9q03bFENooTb/it4jr5kKaZlDQfWvjqWZg48AwzPVMBHlRuTRAY7hRHCEOXz5kV6w==",
+      "requires": {
+        "@types/react": "*"
+      }
+    },
     "@types/stack-utils": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/@types/stack-utils/-/stack-utils-1.0.1.tgz",
@@ -1832,6 +1869,11 @@
         }
       }
     },
+    "@types/warning": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@types/warning/-/warning-3.0.0.tgz",
+      "integrity": "sha1-DSUBJorY+ZYrdA04fEZU9fjiPlI="
+    },
     "@types/yargs": {
       "version": "13.0.9",
       "resolved": "https://registry.npmjs.org/@types/yargs/-/yargs-13.0.9.tgz",
@@ -3490,6 +3532,11 @@
         }
       }
     },
+    "classnames": {
+      "version": "2.2.6",
+      "resolved": "https://registry.npmjs.org/classnames/-/classnames-2.2.6.tgz",
+      "integrity": "sha512-JR/iSQOSt+LQIWwrwEzJ9uk0xfN3mTVYMwt1Ir5mUcSN6pU+V4zQFFaJsclJbPuAUQH+yfWef6tm7l1quW3C8Q=="
+    },
     "clean-css": {
       "version": "4.2.3",
       "resolved": "https://registry.npmjs.org/clean-css/-/clean-css-4.2.3.tgz",
@@ -4530,6 +4577,22 @@
         "utila": "~0.4"
       }
     },
+    "dom-helpers": {
+      "version": "5.2.0",
+      "resolved": "https://registry.npmjs.org/dom-helpers/-/dom-helpers-5.2.0.tgz",
+      "integrity": "sha512-Ru5o9+V8CpunKnz5LGgWXkmrH/20cGKwcHwS4m73zIvs54CN9epEmT/HLqFJW3kXpakAFkEdzgy1hzlJe3E4OQ==",
+      "requires": {
+        "@babel/runtime": "^7.8.7",
+        "csstype": "^3.0.2"
+      },
+      "dependencies": {
+        "csstype": {
+          "version": "3.0.2",
+          "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.0.2.tgz",
+          "integrity": "sha512-ofovWglpqoqbfLNOTBNZLSbMuGrblAf1efvvArGKOZMBrIoJeu5UsAipQolkijtyQx5MtAzT/J9IHj/CEY1mJw=="
+        }
+      }
+    },
     "dom-serializer": {
       "version": "0.2.2",
       "resolved": "https://registry.npmjs.org/dom-serializer/-/dom-serializer-0.2.2.tgz",
@@ -7971,6 +8034,11 @@
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     },
+    "lodash-es": {
+      "version": "4.17.15",
+      "resolved": "https://registry.npmjs.org/lodash-es/-/lodash-es-4.17.15.tgz",
+      "integrity": "sha512-rlrc3yU3+JNOpZ9zj5pQtxnx2THmvRykwL4Xlxoa8I9lHBlVbbyPhgyPMioxVZ4NqyxaVVtaJnzsyOidQIhyyQ=="
+    },
     "lodash._reinterpolate": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/lodash._reinterpolate/-/lodash._reinterpolate-3.0.0.tgz",
@@ -10275,6 +10343,15 @@
         "react-is": "^16.8.1"
       }
     },
+    "prop-types-extra": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/prop-types-extra/-/prop-types-extra-1.1.1.tgz",
+      "integrity": "sha512-59+AHNnHYCdiC+vMwY52WmvP5dM3QLeoumYuEyceQDi9aEhtwN9zIQ2ZNo25sMyXnbh32h+P1ezDsUpUH3JAew==",
+      "requires": {
+        "react-is": "^16.3.2",
+        "warning": "^4.0.0"
+      }
+    },
     "proxy-addr": {
       "version": "2.0.6",
       "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.6.tgz",
@@ -10454,6 +10531,31 @@
         "whatwg-fetch": "^3.0.0"
       }
     },
+    "react-bootstrap": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/react-bootstrap/-/react-bootstrap-1.3.0.tgz",
+      "integrity": "sha512-GYj0c6FO9mx7DaO8Xyz2zs0IcQ6CGCtM3O6/feIoCaG4N8B0+l4eqL7stlMcLpqO4d8NG2PoMO/AbUOD+MO7mg==",
+      "requires": {
+        "@babel/runtime": "^7.4.2",
+        "@restart/context": "^2.1.4",
+        "@restart/hooks": "^0.3.21",
+        "@types/classnames": "^2.2.10",
+        "@types/invariant": "^2.2.33",
+        "@types/prop-types": "^15.7.3",
+        "@types/react": "^16.9.35",
+        "@types/react-transition-group": "^4.4.0",
+        "@types/warning": "^3.0.0",
+        "classnames": "^2.2.6",
+        "dom-helpers": "^5.1.2",
+        "invariant": "^2.2.4",
+        "prop-types": "^15.7.2",
+        "prop-types-extra": "^1.1.0",
+        "react-overlays": "^4.1.0",
+        "react-transition-group": "^4.4.1",
+        "uncontrollable": "^7.0.0",
+        "warning": "^4.0.3"
+      }
+    },
     "react-dev-utils": {
       "version": "10.2.1",
       "resolved": "https://registry.npmjs.org/react-dev-utils/-/react-dev-utils-10.2.1.tgz",
@@ -10676,6 +10778,26 @@
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     },
+    "react-lifecycles-compat": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/react-lifecycles-compat/-/react-lifecycles-compat-3.0.4.tgz",
+      "integrity": "sha512-fBASbA6LnOU9dOU2eW7aQ8xmYBSXUIWr+UmF9b1efZBazGNO+rcXT/icdKnYm2pTwcRylVUYwW7H1PHfLekVzA=="
+    },
+    "react-overlays": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/react-overlays/-/react-overlays-4.1.0.tgz",
+      "integrity": "sha512-vdRpnKe0ckWOOD9uWdqykLUPHLPndIiUV7XfEKsi5008xiyHCfL8bxsx4LbMrfnxW1LzRthLyfy50XYRFNQqqw==",
+      "requires": {
+        "@babel/runtime": "^7.4.5",
+        "@popperjs/core": "^2.0.0",
+        "@restart/hooks": "^0.3.12",
+        "@types/warning": "^3.0.0",
+        "dom-helpers": "^5.1.0",
+        "prop-types": "^15.7.2",
+        "uncontrollable": "^7.0.0",
+        "warning": "^4.0.3"
+      }
+    },
     "react-router": {
       "version": "5.2.0",
       "resolved": "https://registry.npmjs.org/react-router/-/react-router-5.2.0.tgz",
@@ -10782,6 +10904,17 @@
         "workbox-webpack-plugin": "4.3.1"
       }
     },
+    "react-transition-group": {
+      "version": "4.4.1",
+      "resolved": "https://registry.npmjs.org/react-transition-group/-/react-transition-group-4.4.1.tgz",
+      "integrity": "sha512-Djqr7OQ2aPUiYurhPalTrVy9ddmFCCzwhqQmtN+J3+3DzLO209Fdr70QrN8Z3DsglWql6iY1lDWAfpFiBtuKGw==",
+      "requires": {
+        "@babel/runtime": "^7.5.5",
+        "dom-helpers": "^5.0.1",
+        "loose-envify": "^1.4.0",
+        "prop-types": "^15.6.2"
+      }
+    },
     "read-pkg": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-3.0.0.tgz",
@@ -12674,6 +12807,17 @@
       "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
       "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c="
     },
+    "uncontrollable": {
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/uncontrollable/-/uncontrollable-7.1.1.tgz",
+      "integrity": "sha512-EcPYhot3uWTS3w00R32R2+vS8Vr53tttrvMj/yA1uYRhf8hbTG2GyugGqWDY0qIskxn0uTTojVd6wPYW9ZEf8Q==",
+      "requires": {
+        "@babel/runtime": "^7.6.3",
+        "@types/react": "^16.9.11",
+        "invariant": "^2.2.4",
+        "react-lifecycles-compat": "^3.0.4"
+      }
+    },
     "unicode-canonical-property-names-ecmascript": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/unicode-canonical-property-names-ecmascript/-/unicode-canonical-property-names-ecmascript-1.0.4.tgz",
@@ -12965,6 +13109,14 @@
         "makeerror": "1.0.x"
       }
     },
+    "warning": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/warning/-/warning-4.0.3.tgz",
+      "integrity": "sha512-rpJyN222KWIvHJ/F53XSZv0Zl/accqHR8et1kpaMTD/fLCRxtV8iX8czMzY7sVZupTI3zcUTg8eycS2kNF9l6w==",
+      "requires": {
+        "loose-envify": "^1.0.0"
+      }
+    },
     "watchpack": {
       "version": "1.7.2",
       "resolved": "https://registry.npmjs.org/watchpack/-/watchpack-1.7.2.tgz",

frontend/package.json

@@ -10,6 +10,7 @@
     "axios": "^0.19.2",
     "http-proxy-middleware": "^1.0.5",
     "react": "^16.13.1",
+    "react-bootstrap": "^1.3.0",
     "react-dom": "^16.13.1",
     "react-router-dom": "^5.2.0",
     "react-scripts": "3.4.1"

frontend/src/App.css

@@ -4,6 +4,14 @@ badge-success {hard}
 badge-warning {ex}
 badge-danger {exex}*/
 
+.zoomin:hover{
+	cursor:zoom-in;
+}
+
+.zoomout:hover{
+	cursor:zoom-out;
+}
+
 .centered{
 }
 
@@ -107,6 +115,11 @@ body {
     bottom: 0;
 }
 
+.background-songs-click:hover{
+	background-color:#aaf;
+	cursor:pointer;
+}
+
 .background-songs{
 	background-color:#eef;
 }