feat(challenge 59): contente projection defer

apps/angular/59-content-projection-defer/.eslintrc.json

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+{
+  "extends": ["../../../.eslintrc.json"],
+  "ignorePatterns": ["!**/*"],
+  "overrides": [
+    {
+      "files": ["*.ts"],
+      "extends": [
+        "plugin:@nx/angular",
+        "plugin:@angular-eslint/template/process-inline-templates"
+      ],
+      "rules": {
+        "@angular-eslint/component-class-suffix": "off",
+        "@angular-eslint/directive-selector": [
+          "error",
+          {
+            "type": "attribute",
+            "prefix": "app",
+            "style": "camelCase"
+          }
+        ],
+        "@angular-eslint/component-selector": [
+          "error",
+          {
+            "type": "element",
+            "prefix": "app",
+            "style": "kebab-case"
+          }
+        ]
+      }
+    },
+    {
+      "files": ["*.html"],
+      "extends": ["plugin:@nx/angular-template"],
+      "rules": {}
+    }
+  ]
+}

apps/angular/59-content-projection-defer/README.md

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+# content-projection-defer
+
+> author: thomas-laforge
+
+### Run Application
+
+```bash
+npx nx serve angular-content-projection-defer
+```
+
+### Documentation and Instruction
+
+Challenge documentation is [here](https://angular-challenges.vercel.app/challenges/angular/59-content-projection-defer/).

apps/angular/59-content-projection-defer/project.json

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+{
+  "name": "angular-content-projection-defer",
+  "$schema": "../../../node_modules/nx/schemas/project-schema.json",
+  "projectType": "application",
+  "prefix": "app",
+  "sourceRoot": "apps/angular/59-content-projection-defer/src",
+  "tags": [],
+  "targets": {
+    "build": {
+      "executor": "@angular-devkit/build-angular:application",
+      "outputs": ["{options.outputPath}"],
+      "options": {
+        "outputPath": "dist/apps/angular/59-content-projection-defer",
+        "index": "apps/angular/59-content-projection-defer/src/index.html",
+        "browser": "apps/angular/59-content-projection-defer/src/main.ts",
+        "polyfills": ["zone.js"],
+        "tsConfig": "apps/angular/59-content-projection-defer/tsconfig.app.json",
+        "inlineStyleLanguage": "scss",
+        "assets": [
+          {
+            "glob": "**/*",
+            "input": "apps/angular/59-content-projection-defer/public"
+          }
+        ],
+        "styles": ["apps/angular/59-content-projection-defer/src/styles.scss"],
+        "scripts": []
+      },
+      "configurations": {
+        "production": {
+          "budgets": [
+            {
+              "type": "initial",
+              "maximumWarning": "500kb",
+              "maximumError": "1mb"
+            },
+            {
+              "type": "anyComponentStyle",
+              "maximumWarning": "4kb",
+              "maximumError": "8kb"
+            }
+          ],
+          "outputHashing": "all"
+        },
+        "development": {
+          "optimization": false,
+          "extractLicenses": false,
+          "sourceMap": true
+        }
+      },
+      "defaultConfiguration": "production"
+    },
+    "serve": {
+      "executor": "@angular-devkit/build-angular:dev-server",
+      "configurations": {
+        "production": {
+          "buildTarget": "angular-content-projection-defer:build:production"
+        },
+        "development": {
+          "buildTarget": "angular-content-projection-defer:build:development"
+        }
+      },
+      "defaultConfiguration": "development"
+    },
+    "extract-i18n": {
+      "executor": "@angular-devkit/build-angular:extract-i18n",
+      "options": {
+        "buildTarget": "angular-content-projection-defer:build"
+      }
+    },
+    "lint": {
+      "executor": "@nx/eslint:lint"
+    },
+    "serve-static": {
+      "executor": "@nx/web:file-server",
+      "options": {
+        "buildTarget": "angular-content-projection-defer:build",
+        "staticFilePath": "dist/apps/angular/59-content-projection-defer/browser",
+        "spa": true
+      }
+    }
+  }
+}

apps/angular/59-content-projection-defer/src/app/app.component.ts

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+import { ChangeDetectionStrategy, Component } from '@angular/core';
+import { RouterLink, RouterOutlet } from '@angular/router';
+
+@Component({
+  imports: [RouterOutlet, RouterLink],
+  selector: 'app-root',
+  template: `
+    <div class="flex gap-2">
+      <button class="rounded-md border px-4 py-2" routerLink="/page-1">
+        Page 1
+      </button>
+      <button class="rounded-md border px-4 py-2" routerLink="/page-2">
+        Page 2
+      </button>
+    </div>
+    <router-outlet />
+  `,
+  changeDetection: ChangeDetectionStrategy.OnPush,
+  host: {
+    class: 'flex flex-col gap-2 ',
+  },
+})
+export class AppComponent {}

apps/angular/59-content-projection-defer/src/app/app.config.ts

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+import { provideHttpClient } from '@angular/common/http';
+import { ApplicationConfig, provideZoneChangeDetection } from '@angular/core';
+import { provideRouter } from '@angular/router';
+import { appRoutes } from './app.routes';
+
+export const appConfig: ApplicationConfig = {
+  providers: [
+    provideZoneChangeDetection({ eventCoalescing: true }),
+    provideRouter(appRoutes),
+    provideHttpClient(),
+  ],
+};

apps/angular/59-content-projection-defer/src/app/app.routes.ts

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+import { Route } from '@angular/router';
+
+export const appRoutes: Route[] = [
+  {
+    path: 'page-1',
+    loadComponent: () => import('./page-1').then((m) => m.Page1),
+  },
+  {
+    path: 'page-2',
+    loadComponent: () => import('./page-2').then((m) => m.Page2),
+  },
+  { path: '**', redirectTo: 'page-1' },
+];

apps/angular/59-content-projection-defer/src/app/expandable-card.ts

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+import { ChangeDetectionStrategy, Component, signal } from '@angular/core';
+
+@Component({
+  selector: 'app-expandable-card',
+  template: `
+    <button
+      class="text-fg-subtle hover:bg-button-secondary-bg-hover active:bg-button-secondary-bg-active focus:outline-button-border-highlight flex w-fit items-center gap-1 py-2 focus:outline focus:outline-2 focus:outline-offset-1"
+      (click)="isExpanded.set(!isExpanded())"
+      data-cy="expandable-panel-toggle">
+      @if (isExpanded()) {
+        <svg
+          xmlns="http://www.w3.org/2000/svg"
+          fill="none"
+          viewBox="0 0 24 24"
+          stroke-width="1.5"
+          stroke="currentColor"
+          class="h-4 w-4">
+          <path
+            stroke-linecap="round"
+            stroke-linejoin="round"
+            d="m19.5 8.25-7.5 7.5-7.5-7.5" />
+        </svg>
+      } @else {
+        <svg
+          xmlns="http://www.w3.org/2000/svg"
+          fill="none"
+          viewBox="0 0 24 24"
+          stroke-width="1.5"
+          stroke="currentColor"
+          class="h-4 w-4">
+          <path
+            stroke-linecap="round"
+            stroke-linejoin="round"
+            d="m8.25 4.5 7.5 7.5-7.5 7.5" />
+        </svg>
+      }
+      <ng-content select="[title]" />
+    </button>
+
+    <div
+      class="overflow-hidden transition-[max-height] duration-500"
+      [class.max-h-0]="!isExpanded()"
+      [class.max-h-[1000px]]="isExpanded()">
+      <ng-content />
+    </div>
+  `,
+  changeDetection: ChangeDetectionStrategy.OnPush,
+  host: {
+    class: 'flex flex-col gap-2 ',
+  },
+})
+export class ExpandableCard {
+  public isExpanded = signal(false);
+}

apps/angular/59-content-projection-defer/src/app/page-1.ts

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+import { ChangeDetectionStrategy, Component } from '@angular/core';
+
+@Component({
+  selector: 'app-page-1',
+  template: `
+    page1
+  `,
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class Page1 {}

apps/angular/59-content-projection-defer/src/app/page-2.ts

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+import { httpResource } from '@angular/common/http';
+import {
+  ChangeDetectionStrategy,
+  Component,
+  ResourceStatus,
+} from '@angular/core';
+import { ExpandableCard } from './expandable-card';
+
+interface Post {
+  id: number;
+  title: string;
+  body: string;
+  userId: number;
+}
+
+@Component({
+  selector: 'app-page-2',
+  template: `
+    page2
+    <app-expandable-card>
+      <div title>Load Post</div>
+      <div>
+        @if (postRessource.isLoading()) {
+          Loading...
+        } @else if (postRessource.status() === ResourceStatus.Error) {
+          Error...
+        } @else {
+          @for (post of postRessource.value(); track post.id) {
+            <div>{{ post.title }}</div>
+          }
+        }
+      </div>
+    </app-expandable-card>
+  `,
+  changeDetection: ChangeDetectionStrategy.OnPush,
+  imports: [ExpandableCard],
+})
+export class Page2 {
+  public postRessource = httpResource<Post[]>(
+    'https://jsonplaceholder.typicode.com/posts',
+  );
+  protected readonly ResourceStatus = ResourceStatus;
+}

apps/angular/59-content-projection-defer/src/index.html

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+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <title>angular-content-projection-defer</title>
+    <base href="/" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <link rel="icon" type="image/x-icon" href="favicon.ico" />
+  </head>
+  <body>
+    <app-root></app-root>
+  </body>
+</html>

apps/angular/59-content-projection-defer/src/main.ts

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+import { bootstrapApplication } from '@angular/platform-browser';
+import { AppComponent } from './app/app.component';
+import { appConfig } from './app/app.config';
+
+bootstrapApplication(AppComponent, appConfig).catch((err) =>
+  console.error(err),
+);

apps/angular/59-content-projection-defer/src/styles.scss

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+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+/* You can add global styles to this file, and also import other style files */

apps/angular/59-content-projection-defer/tailwind.config.js

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+const { createGlobPatternsForDependencies } = require('@nx/angular/tailwind');
+const { join } = require('path');
+
+/** @type {import('tailwindcss').Config} */
+module.exports = {
+  content: [
+    join(__dirname, 'src/**/!(*.stories|*.spec).{ts,html}'),
+    ...createGlobPatternsForDependencies(__dirname),
+  ],
+  theme: {
+    extend: {},
+  },
+  plugins: [],
+};

apps/angular/59-content-projection-defer/tsconfig.app.json

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+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../../../dist/out-tsc",
+    "types": []
+  },
+  "files": ["src/main.ts"],
+  "include": ["src/**/*.d.ts"],
+  "exclude": ["jest.config.ts", "src/**/*.test.ts", "src/**/*.spec.ts"]
+}

apps/angular/59-content-projection-defer/tsconfig.editor.json

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+{
+  "extends": "./tsconfig.json",
+  "include": ["src/**/*.ts"],
+  "compilerOptions": {},
+  "exclude": ["jest.config.ts", "src/**/*.test.ts", "src/**/*.spec.ts"]
+}

apps/angular/59-content-projection-defer/tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "es2022",
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "strict": true,
+    "noImplicitOverride": true,
+    "noPropertyAccessFromIndexSignature": true,
+    "noImplicitReturns": true,
+    "noFallthroughCasesInSwitch": true
+  },
+  "files": [],
+  "include": [],
+  "references": [
+    {
+      "path": "./tsconfig.editor.json"
+    },
+    {
+      "path": "./tsconfig.app.json"
+    }
+  ],
+  "extends": "../../../tsconfig.base.json",
+  "angularCompilerOptions": {
+    "enableI18nLegacyMessageIdFormat": false,
+    "strictInjectionParameters": true,
+    "strictInputAccessModifiers": true,
+    "strictTemplates": true
+  }
+}