feat(aio): copy code snackbar and design updates

- Add snackbar and pointer cursor for copy code button inside aio-code components
- Flex cenetered content in features page
- Removed duplicate global css class
- Add styles to links inside of sub-sections
- Remove focus outline on top nav bar links

aio/content/marketing/features.html

@@ -1,6 +1,6 @@
 <h1>Features &amp; Benefits</h1>
 <article class="l-content ">
-  <div>
+  <div class="flex-center">
     <div><h2 class="text-headline">Cross Platform</h2>
       <div class="feature-row">
 

aio/src/app/embedded/code/code.component.spec.ts

@@ -2,6 +2,8 @@
 import { async, ComponentFixture, TestBed } from '@angular/core/testing';
 import { By } from '@angular/platform-browser';
 import { Component, DebugElement } from '@angular/core';
+import { MdSnackBarModule, MdSnackBar } from '@angular/material';
+import { NoopAnimationsModule } from '@angular/platform-browser/animations';
 
 import { CodeComponent } from './code.component';
 import { CopierService } from 'app/shared//copier.service';
@@ -39,10 +41,11 @@ describe('CodeComponent', () => {
 
   beforeEach(async(() => {
     TestBed.configureTestingModule({
+      imports: [ MdSnackBarModule, NoopAnimationsModule ],
       declarations: [ CodeComponent, HostComponent ],
       providers: [
         PrettyPrinter,
-        {provide: CopierService, useClass: TestCopierService },
+        CopierService,
         {provide: Logger, useClass: TestLogger }
      ]
     })
@@ -65,99 +68,128 @@ describe('CodeComponent', () => {
     expect(codeComponent).toBeTruthy('CodeComponent');
   });
 
-  it('should format a one-line code sample', () => {
-    // 'pln' spans are a tell-tale for syntax highlighing
-    const spans = codeComponentDe.nativeElement.querySelectorAll('span.pln');
-    expect(spans.length).toBeGreaterThan(0, 'formatted spans');
+  describe('pretty printing', () => {
+    it('should format a one-line code sample', () => {
+      // 'pln' spans are a tell-tale for syntax highlighing
+      const spans = codeComponentDe.nativeElement.querySelectorAll('span.pln');
+      expect(spans.length).toBeGreaterThan(0, 'formatted spans');
+    });
+
+    it('should format a one-line code sample without linenums by default', () => {
+      // `<li>`s are a tell-tale for line numbers
+      const lis = codeComponentDe.nativeElement.querySelectorAll('li');
+      expect(lis.length).toBe(0, 'should be no linenums');
+    });
+
+    it('should add line numbers to one-line code sample when linenums set true', () => {
+      hostComponent.linenums = 'true';
+      fixture.detectChanges();
+
+      // `<li>`s are a tell-tale for line numbers
+      const lis = codeComponentDe.nativeElement.querySelectorAll('li');
+      expect(lis.length).toBe(1, 'has linenums');
+    });
+
+    it('should format multi-line code with linenums by default', () => {
+      hostComponent.code = multiLineCode;
+      fixture.detectChanges();
+
+      // `<li>`s are a tell-tale for line numbers
+      const lis = codeComponentDe.nativeElement.querySelectorAll('li');
+      expect(lis.length).toBeGreaterThan(0, 'has linenums');
+    });
+
+    it('should not format multi-line code when linenums set false', () => {
+      hostComponent.linenums = false;
+      hostComponent.code = multiLineCode;
+      fixture.detectChanges();
+
+      // `<li>`s are a tell-tale for line numbers
+      const lis = codeComponentDe.nativeElement.querySelectorAll('li');
+      expect(lis.length).toBe(0, 'should be no linenums');
+    });
   });
 
-  it('should format a one-line code sample without linenums by default', () => {
-    // `<li>`s are a tell-tale for line numbers
-    const lis = codeComponentDe.nativeElement.querySelectorAll('li');
-    expect(lis.length).toBe(0, 'should be no linenums');
+  describe('whitespace handling', () => {
+    it('should remove common indentation from the code before rendering', () => {
+      hostComponent.linenums = false;
+      hostComponent.code = '  abc\n   let x = text.split(\'\\n\');\n  ghi\n\n  jkl\n';
+      fixture.detectChanges();
+      const codeContent = codeComponentDe.nativeElement.querySelector('code').innerText;
+      expect(codeContent).toEqual('abc\n let x = text.split(\'\\n\');\nghi\n\njkl');
+    });
+
+    it('should trim whitespace from the code before rendering', () => {
+      hostComponent.linenums = false;
+      hostComponent.code = '\n\n\n' + multiLineCode + '\n\n\n';
+      fixture.detectChanges();
+      const codeContent = codeComponentDe.nativeElement.querySelector('code').innerText;
+      expect(codeContent).toEqual(codeContent.trim());
+    });
+
+    it('should trim whitespace from code before computing whether to format linenums', () => {
+      hostComponent.code = '\n\n\n' + hostComponent.code + '\n\n\n';
+      fixture.detectChanges();
+      // `<li>`s are a tell-tale for line numbers
+      const lis = codeComponentDe.nativeElement.querySelectorAll('li');
+      expect(lis.length).toBe(0, 'should be no linenums');
+    });
   });
 
-  it('should add line numbers to one-line code sample when linenums set true', () => {
-    hostComponent.linenums = 'true';
-    fixture.detectChanges();
+  describe('error message', () => {
+    it('should display error message when there is no code (after trimming)', () => {
+      hostComponent.code = ' \n ';
+      fixture.detectChanges();
+      const missing = codeComponentDe.nativeElement.querySelector('.code-missing') as HTMLElement;
+      expect(missing).not.toBeNull('should have element with "code-missing" class');
+      expect(missing.innerText).toContain('missing', 'error message');
+    });
 
-    // `<li>`s are a tell-tale for line numbers
-    const lis = codeComponentDe.nativeElement.querySelectorAll('li');
-    expect(lis.length).toBe(1, 'has linenums');
+    it('should not display "code-missing" class when there is some code', () => {
+      fixture.detectChanges();
+      const missing = codeComponentDe.nativeElement.querySelector('.code-missing');
+      expect(missing).toBeNull('should not have element with "code-missing" class');
+    });
   });
 
-  it('should format multi-line code with linenums by default', () => {
-    hostComponent.code = multiLineCode;
-    fixture.detectChanges();
+  describe('copy button', () => {
+    it('should call copier service when clicked', () => {
+      const copierService: CopierService = TestBed.get(CopierService);
+      const spy = spyOn(copierService, 'copyText');
+      const button = fixture.debugElement.query(By.css('button')).nativeElement as HTMLButtonElement;
+      expect(spy.calls.count()).toBe(0, 'before click');
+      button.click();
+      expect(spy.calls.count()).toBe(1, 'after click');
+    });
 
-    // `<li>`s are a tell-tale for line numbers
-    const lis = codeComponentDe.nativeElement.querySelectorAll('li');
-    expect(lis.length).toBeGreaterThan(0, 'has linenums');
+    it('should copy code text when clicked', () => {
+      const copierService: CopierService = TestBed.get(CopierService);
+      const spy = spyOn(copierService, 'copyText');
+      const button = fixture.debugElement.query(By.css('button')).nativeElement as HTMLButtonElement;
+      button.click();
+      expect(spy.calls.argsFor(0)[0]).toEqual(oneLineCode, 'after click');
+    });
+
+    it('should display a message when copy succeeds', () => {
+      const snackBar: MdSnackBar = TestBed.get(MdSnackBar);
+      const copierService: CopierService = TestBed.get(CopierService);
+      spyOn(snackBar, 'open');
+      spyOn(copierService, 'copyText').and.returnValue(true);
+      const button = fixture.debugElement.query(By.css('button')).nativeElement as HTMLButtonElement;
+      button.click();
+      expect(snackBar.open).toHaveBeenCalledWith('Code Copied', '', { duration: 800 });
+    });
+
+    it('should display an error when copy fails', () => {
+      const snackBar: MdSnackBar = TestBed.get(MdSnackBar);
+      const copierService: CopierService = TestBed.get(CopierService);
+      spyOn(snackBar, 'open');
+      spyOn(copierService, 'copyText').and.returnValue(false);
+      const button = fixture.debugElement.query(By.css('button')).nativeElement as HTMLButtonElement;
+      button.click();
+      expect(snackBar.open).toHaveBeenCalledWith('Copy failed. Please try again!', '', { duration: 800 });
+    });
   });
-
-  it('should not format multi-line code when linenums set false', () => {
-    hostComponent.linenums = false;
-    hostComponent.code = multiLineCode;
-    fixture.detectChanges();
-
-    // `<li>`s are a tell-tale for line numbers
-    const lis = codeComponentDe.nativeElement.querySelectorAll('li');
-    expect(lis.length).toBe(0, 'should be no linenums');
-  });
-
-  it('should remove common indentation from the code before rendering', () => {
-    hostComponent.linenums = false;
-    hostComponent.code = '  abc\n   let x = text.split(\'\\n\');\n  ghi\n\n  jkl\n';
-    fixture.detectChanges();
-    const codeContent = codeComponentDe.nativeElement.querySelector('code').innerText;
-    expect(codeContent).toEqual('abc\n let x = text.split(\'\\n\');\nghi\n\njkl');
-  });
-
-  it('should trim whitespace from the code before rendering', () => {
-    hostComponent.linenums = false;
-    hostComponent.code = '\n\n\n' + multiLineCode + '\n\n\n';
-    fixture.detectChanges();
-    const codeContent = codeComponentDe.nativeElement.querySelector('code').innerText;
-    expect(codeContent).toEqual(codeContent.trim());
-  });
-
-  it('should trim whitespace from code before computing whether to format linenums', () => {
-    hostComponent.code = '\n\n\n' + hostComponent.code + '\n\n\n';
-    fixture.detectChanges();
-    // `<li>`s are a tell-tale for line numbers
-    const lis = codeComponentDe.nativeElement.querySelectorAll('li');
-    expect(lis.length).toBe(0, 'should be no linenums');
-  });
-
-  it('should display error message when there is no code (after trimming)', () => {
-    hostComponent.code = ' \n ';
-    fixture.detectChanges();
-    const missing = codeComponentDe.nativeElement.querySelector('.code-missing') as HTMLElement;
-    expect(missing).not.toBeNull('should have element with "code-missing" class');
-    expect(missing.innerText).toContain('missing', 'error message');
-  });
-
-  it('should not display "code-missing" class when there is some code', () => {
-    fixture.detectChanges();
-    const missing = codeComponentDe.nativeElement.querySelector('.code-missing');
-    expect(missing).toBeNull('should not have element with "code-missing" class');
-  });
-
-  it('should call copier service when copy button clicked', () => {
-    const copierService: TestCopierService = <any> codeComponentDe.injector.get(CopierService) ;
-    const button = fixture.debugElement.query(By.css('button')).nativeElement as HTMLButtonElement;
-    expect(copierService.copyText.calls.count()).toBe(0, 'before click');
-    button.click();
-    expect(copierService.copyText.calls.count()).toBe(1, 'after click');
-  });
-
-  it('should copy code text when copy button clicked', () => {
-    const copierService: TestCopierService = <any> codeComponentDe.injector.get(CopierService) ;
-    const button = fixture.debugElement.query(By.css('button')).nativeElement as HTMLButtonElement;
-    button.click();
-    expect(copierService.copyText.calls.argsFor(0)[0]).toEqual(oneLineCode, 'after click');
-  });
-
 });
 
 //// Test helpers ////
@@ -174,10 +206,6 @@ class HostComponent {
   linenums: boolean | number | string;
 }
 
-class TestCopierService {
-  copyText = jasmine.createSpy('copyText');
-}
-
 class TestLogger {
   log = jasmine.createSpy('log');
   error = jasmine.createSpy('error');

aio/src/app/embedded/code/code.component.ts

@@ -2,6 +2,7 @@ import { Component, ElementRef, ViewChild, OnChanges, OnDestroy, Input } from '@
 import { Logger } from 'app/shared/logger.service';
 import { PrettyPrinter } from './pretty-printer.service';
 import { CopierService } from 'app/shared/copier.service';
+import { MdSnackBar } from '@angular/material';
 
 const originalLabel = 'Copy Code';
 const copiedLabel = 'Copied!';
@@ -54,17 +55,13 @@ export class CodeComponent implements OnChanges {
   @Input()
   code: string;
 
-  /**
-   * The label to show on the copy button
-   */
-  buttonLabel = originalLabel;
-
   /**
    * The element in the template that will display the formatted code
    */
   @ViewChild('codeContainer') codeContainer: ElementRef;
 
   constructor(
+    private snackbar: MdSnackBar,
     private pretty: PrettyPrinter,
     private copier: CopierService,
     private logger: Logger) {}
@@ -97,11 +94,16 @@ export class CodeComponent implements OnChanges {
     const code = this.codeContainer.nativeElement.innerText;
     if (this.copier.copyText(code)) {
       this.logger.log('Copied code to clipboard:', code);
-      // change the button label (for one second)
-      this.buttonLabel = copiedLabel;
-      setTimeout(() => this.buttonLabel = originalLabel, 1000);
+      // success snackbar alert
+      this.snackbar.open('Code Copied', '', {
+        duration: 800,
+      });
     } else {
       this.logger.error('ERROR copying code to clipboard:', code);
+      // failure snackbar alert
+      this.snackbar.open('Copy failed. Please try again!', '', {
+        duration: 800,
+      });
     }
   }
 

aio/src/styles/1-layouts/_layout-global.scss

@@ -27,9 +27,6 @@ l-relative {
   flex-wrap: wrap;
 }
 
-.flex-center {
-    justify-content: center;
-}
 .flex-center {
     display: flex;
     justify-content: center;

aio/src/styles/1-layouts/_top-menu.scss

@@ -3,9 +3,15 @@
   flex: 1 1 auto;
 }
 
-.nav-link {
+aio-top-menu a.nav-link {
   margin: 0 16px;
   cursor: pointer;
+  
+  &:focus {
+    background-color: $accentblue;
+    outline: none;
+    padding: 21px 16px;
+  }
 }
 
 .nav-link.home img {

aio/src/styles/2-modules/_code.scss

@@ -91,6 +91,7 @@ aio-code.headed-code {
   color: $lightgray;
   background-color: transparent;
   border: none;
+  cursor: pointer;
   &:hover {
     color: $mediumgray;
   }

aio/src/styles/2-modules/_subsection.scss

@@ -1,11 +1,16 @@
 .l-sub-section {
     color: $darkgray;
-    background-color: $lightgray;
-    border-left: 8px solid $mediumgray;
+    background-color: rgba($blue, 0.05);
+    border-left: 8px solid $blue;
     padding: 16px;
     margin-bottom: 8px;
 
     h3 {
         margin: 8px 0 0;
     }
+
+    a:hover {
+        color: $blue;
+        text-decoration: underline;
+    }
 }