[dart] Upgrade to Dart 2.12 and its null-safety features
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@@ -35,7 +35,7 @@ final icons = {
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};
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// Get the current page’s title
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String getPageTitle() => querySelector('title').text;
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String getPageTitle() => querySelector('title')!.text!;
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// Create the home button
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Future<Element> makeHome() async {
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@@ -45,7 +45,7 @@ Future<Element> makeHome() async {
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'afterBegin',
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Element.a()
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..attributes['href'] = '/'
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..append(makeIcon(icons['home'])));
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..append(makeIcon(icons['home']!)));
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}
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// Create a clickable icon
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@@ -61,7 +61,7 @@ Future<Element> makePages() async {
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..append(Element.a()
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..attributes['tabindex'] = '-1'
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..attributes['href'] = 'javascript:void(0)'
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..append(makeIcon(icons['pages'])))
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..append(makeIcon(icons['pages']!)))
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..classes.addAll(['nav-item', 'has-dropdown'])
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..append(Element.ul()
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..attributes['id'] = 'drop-page'
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@@ -87,23 +87,23 @@ Future<Element> makeShare() async {
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..append(Element.a()
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..attributes['href'] = 'javascript:void(0)'
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..attributes['tabindex'] = '-1'
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..append(makeIcon(icons['share'])))
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..append(makeIcon(icons['share']!)))
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..append(Element.ul()
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..classes.add('dropdown')
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..attributes['id'] = 'drop-share'
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..append(makeShareLink(
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makeIcon(icons['twitter']),
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makeIcon(icons['twitter']!),
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'https://twitter.com/share?text=${getPageTitle()}'
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'&url=${window.location.href}'))
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..append(makeShareLink(makeIcon(icons['reddit']),
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..append(makeShareLink(makeIcon(icons['reddit']!),
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'https://www.reddit.com/submit?title=${getPageTitle()}s&url=${window.location.href}'))
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..append(makeShareLink(makeIcon(icons['email']),
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'mailto:?subject=${getPageTitle}&body=${window.location.href}'))
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..append(makeShareLink(makeIcon(icons['email']!),
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'mailto:?subject=$getPageTitle&body=${window.location.href}'))
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..append(makeShareLink(
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makeIcon(icons['linkedin']),
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makeIcon(icons['linkedin']!),
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'https://www.linkedin.com/shareArticle?mini=true&url=${window.location.href}'
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'&title=${getPageTitle()}'))
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..append(makeShareLink(makeIcon(icons['facebook']),
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..append(makeShareLink(makeIcon(icons['facebook']!),
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'https://www.facebook.com/sharer/sharer.php?u=${window.location.href}')));
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}
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@@ -125,7 +125,7 @@ Future<Element> makeThemeChanger() async {
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..attributes['tabindex'] = '-1'
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..append(Element.span()
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..style.verticalAlign = 'top'
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..append(makeIcon(icons['theme']))))
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..append(makeIcon(icons['theme']!))))
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..append(Element.ul()
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..classes.add('dropdown')
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..attributes['id'] = 'theme-dropdown'
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@@ -144,7 +144,7 @@ Future<Element> makeToc() async {
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..append(Element.a()
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..attributes['tabindex'] = '-1'
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..attributes['href'] = 'javascript:void(0)'
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..append(makeIcon(icons['toc'])));
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..append(makeIcon(icons['toc']!)));
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}
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// Add a navbar atop of the HTML body, containing:
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