Angular.js 页面滚动动效 - 半边文本半边图片

Infinite Scroll Demo

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《aframe.js 3d拼图代码详解》作品已被踏得网收录！

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HTML
CSS
JavaScript
Result

编译

JavaScript

angular.module('app', ['ngAnimate'])
    .directive('infiniteScroll', function($window, $document, $timeout) {
        return {
            restrict: 'A',
            link: function(scope, element, attrs) {

// Check if user initiated scroll
                var userScroll = false;

function mouseEvent(e) {
                        userScroll = true;
                    }
                    // Mozilla/Webkit 
                if (window.addEventListener) {
                    document.addEventListener('DOMMouseScroll', mouseEvent, false);
                }
                //for IE/OPERA etc 
                document.onmousewheel = mouseEvent;

// infinite scrolling logic
                angular.element($window).bind("scroll", function() {
                    var h = element[0].scrollHeight - $window.innerHeight;
                    var offset = $window.pageYOffset;

if (h == offset && userScroll) {
                        $window.scrollTo(0, 0);
                        userScroll = false;
                        scope.viewportCounterDown = scope.viewportCounterDown + 1;
                        scope.$apply();
                    } else if (offset == 0 && userScroll) {
                        $window.scrollTo(0, h);
                        userScroll = false;
                        scope.viewportCounterUp = scope.viewportCounterUp + 1;
                        scope.$apply();
                    }
                });

// save viewport height to scope
                var reportValues = function() {
                    scope.viewportHeight = $window.innerHeight;
                    scope.$apply();
                }
                reportValues();
                $window.scrollTo(0, $window.innerHeight / 2);
                angular.element($window).bind("resize", reportValues);
            }
        }
    })
    .directive('visible', function($window, $document, $timeout) {
        return {
            restrict: 'AE',
            scope: {
                'visibleModel': '='
            },
            link: function(scope, element, attr) {

// check if element is in viewport
                var checkVisibility = function() {
                    var h = $window.innerHeight;
                    var box = element[0].getBoundingClientRect();
                    var offset = $window.pageYOffset;
                    if ((offset) > (box.top + offset - h) && (offset - element[0].offsetHeight) < (box.top + offset)) {
                        scope.visibleModel = true;
                        scope.$apply();
                    } else {
                        scope.visibleModel = false;
                        scope.$apply();
                    }
                }

// initiate
                $timeout(function() {
                    checkVisibility();
                }, 1);

// check on scroll and resize
                angular.element($window).bind("scroll", checkVisibility);
                angular.element($window).bind("resize", checkVisibility);
            }
        }
    })
    .controller('MainController', function($scope) {

$scope.message = 'Hi There!';

$scope.viewportCounterDown = 0;
        $scope.viewportCounterUp = 0;

var count = function(num) {
            if (num > 20)
                $scope.message = 'Don\'t you have better things to do?';
            else if (num > 10)
                $scope.message = 'Still scrolling?!';
            else if (num > 7)
                $scope.message = 'Whoo hoo!';
            else if (num > 5)
                $scope.message = 'Get it now?';
            else if (num > 3)
                $scope.message = 'Try scrolling up too!';
            else if (num > 1)
                $scope.message = 'Confused? Watch your scrollbar...';
            else if (num > 0)
                $scope.message = 'Welcome back.';
        }

$scope.$watch('viewportCounterDown', function(newValue, oldValue) {
            count($scope.viewportCounterDown + $scope.viewportCounterUp);
        })
        $scope.$watch('viewportCounterUp', function(newValue, oldValue) {
            count($scope.viewportCounterDown + $scope.viewportCounterUp);
        })

$scope.forests = [{
            'name': 'Fox in the Forest',
            'summary': 'A magnificent Bamboo forest in the district of Arashiyama, west to Kyoto, Japan.',
            'location': 'Kyoto, Japan',
            'image': 'https://unsplash.imgix.net/reserve/nqr33LlRR66jA3Ez9mX7_fox-in-the-forest-by-jose-inesta.jpg?fit=crop&fm=jpg&h=700&q=75&w=1050'
        }, {
            'name': 'Winter Flurries',
            'summary': 'The forest is named for the majestic Giant Sequoia trees which populate 38 distinct groves within the boundaries of the forest. The Sequoia National Forest covers 4,829 sq km (1,865 sq mi).',
            'location': 'California, United States',
            'image': 'https://ununsplash.imgix.net/reserve/unsplash_52cee67a5c618_1.JPG?fit=crop&fm=jpg&h=700&q=75&w=1050'
        }, {
            'name': 'Redwood National Park',
            'summary': 'The Redwood National parks is a combination of four parks that together protect 45% of all remaining coast redwood (Sequoia sempervirens) old-growth forests, totaling at least 158 square km.',
            'location': 'California, United States',
            'image': 'https://unsplash.imgix.net/photo-1427955569621-3e494de2b1d2?fit=crop&fm=jpg&h=700&q=75&w=1050'
        }, {
            'name': 'Black Forest',
            'summary': 'The name “Black Forest” was given by the Romans who referred to the forest blocking out most of the sunlight from getting inside the forest by the dense growth of conifers.',
            'location': 'Germany',
            'image': 'https://unsplash.imgix.net/photo-1425141750113-187b6a13e28c?fit=crop&fm=jpg&h=675&q=75&w=1050'
        }, {
            'name': 'Crooked Forest',
            'summary': 'It is generally believed that some form of human tool or technique was used to make the trees grow this way, but the method and motive are not currently known. ',
            'location': 'Poland',
            'image': 'https://ununsplash.imgix.net/photo-1422640805998-18a4dd89bec2?fit=crop&fm=jpg&h=625&q=75&w=1050'
        }, {
            'name': 'Sagano Bamboo Forest',
            'summary': 'A magnificent Bamboo forest in the district of Arashiyama, west to Kyoto, Japan.',
            'location': 'Kyoto, Japan',
            'image': 'https://unsplash.imgix.net/reserve/nqr33LlRR66jA3Ez9mX7_fox-in-the-forest-by-jose-inesta.jpg?fit=crop&fm=jpg&h=700&q=75&w=1050'
        }, {
            'name': 'Giant Sequoias',
            'summary': 'The forest is named for the majestic Giant Sequoia trees which populate 38 distinct groves within the boundaries of the forest. The Sequoia National Forest covers 4,829 sq km (1,865 sq mi).',
            'location': 'California, United States',
            'image': 'https://ununsplash.imgix.net/reserve/unsplash_52cee67a5c618_1.JPG?fit=crop&fm=jpg&h=700&q=75&w=1050'
        }, {
            'name': 'Redwood National Park',
            'summary': 'The Redwood National parks is a combination of four parks that together protect 45% of all remaining coast redwood (Sequoia sempervirens) old-growth forests, totaling at least 158 square km.',
            'location': 'California, United States',
            'image': 'https://unsplash.imgix.net/photo-1427955569621-3e494de2b1d2?fit=crop&fm=jpg&h=700&q=75&w=1050'
        }, {
            'name': 'Black Forest',
            'summary': 'The name “Black Forest” was given by the Romans who referred to the forest blocking out most of the sunlight from getting inside the forest by the dense growth of conifers.',
            'location': 'Germany',
            'image': 'https://unsplash.imgix.net/photo-1425141750113-187b6a13e28c?fit=crop&fm=jpg&h=675&q=75&w=1050'
        }, {
            'name': 'Crooked Forest',
            'summary': 'It is generally believed that some form of human tool or technique was used to make the trees grow this way, but the method and motive are not currently known. ',
            'location': 'Poland',
            'image': 'https://ununsplash.imgix.net/photo-1422640805998-18a4dd89bec2?fit=crop&fm=jpg&h=625&q=75&w=1050'
        }];
    })

编译

CSS

* {
    box-sizing: border-box;
}
html,
body,
#infinite {
    height: 100%;
}
#wrapper {
    color: #333;
    font-size: 15px;
    font-family: 'Source Sans Pro', sans-serif;
    font-weight: 400;
    padding: 0 3em;
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
    -webkit-flex-direction: row;
    -ms-flex-direction: row;
    flex-direction: row;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}
h1 {
    font-size: 48px;
    font-weight: 700;
}
h3 {
    font-size: 32px;
    margin-top: 0;
    font-family: 'Playfair Display', serif;
    font-weight: 900;
}
h4 {
    font-size: 24px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}
h5 {
    font-size: 18px;
}
.sub {
    color: #aaa;
    font-family: 'Playfair Display', serif;
    font-weight: 400;
    font-style: italic;
}
#header {
    position: relative;
    min-width: 250px;
}
#header main {
    position: fixed;
    width: 250px;
    top: 0;
    bottom: 0;
    margin: auto 0;
    padding: 0 3em 3em 0;
}
#main {
    min-width: 500px;
    max-width: 850px;
    overflow: hidden;
}
#main header,
#main footer {
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -webkit-align-items: center;
    -ms-flex-align: center;
    align-items: center;
    width: 100%;
    text-align: center;
    margin-top: 0px;
}
#main header div,
#main footer div {
    max-width: 500px;
    border: 3px solid #eaeaea;
    padding: 1em 2em 2em;
}
article {
    -webkit-transition: all 0.75s cubic-bezier(0.3, 0.53, 0, 1);
    transition: all 0.75s cubic-bezier(0.3, 0.53, 0, 1);
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
    -webkit-flex-direction: row;
    -ms-flex-direction: row;
    flex-direction: row;
    -webkit-box-align: center;
    -webkit-align-items: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center;
    height: 375px;
    overflow: hidden;
    -webkit-transform: translateX(-100%);
    -ms-transform: translateX(-100%);
    transform: translateX(-100%);
    opacity: 0;
}
article figure {
    padding: 0;
    margin: 0;
    height: 375px;
    width: 55%;
    background-size: cover;
    background-position: center center;
}
article main {
    width: 45%;
    padding: 0 2.5em;
}
article p {
    text-align: justify;
}
article.odd {
    -webkit-box-orient: horizontal;
    -webkit-box-direction: reverse;
    -webkit-flex-direction: row-reverse;
    -ms-flex-direction: row-reverse;
    flex-direction: row-reverse;
    -webkit-transform: translateX(100%);
    -ms-transform: translateX(100%);
    transform: translateX(100%);
}
article.visible,
article.visible-add.visible-add-active {
    -webkit-transform: translateX(0%);
    -ms-transform: translateX(0%);
    transform: translateX(0%);
    opacity: 1;
}
article.visible-remove.visible-remove-active {
    -webkit-transform: translateX(-100%);
    -ms-transform: translateX(-100%);
    transform: translateX(-100%);
    opacity: 0;
}
article.odd.visible-remove.visible-remove-active {
    -webkit-transform: translateX(100%);
    -ms-transform: translateX(100%);
    transform: translateX(100%);
}
article:after {
    content: '';
    display: block;
    clear: both;
}

HTML

<body ng-app="app" ng-controller="MainController">
    <div id="infinite" infinite-scroll>
        <div id="wrapper">
            <main id="main">
                <header ng-style="{ 'height' : viewportHeight*2 + 'px' }">
                    <div>
                        <h1>{{ message }}</h1>
                        <h3 class="sub">Scroll like the wind...</h3>
                        <p>Just a fun little demo for monitoring user scrolling with angularjs directives. Scroll up and down to see animation as the elements enter and leave the viewport.</p>
                        <p>Playfair Display &amp; Source Sans Pro are what makes this look pretty.</p>
                        <p>Stock photos courtesy of <a href="https://unsplash.com/">unsplash</a>.</p>
                    </div>
                </header>
                <article visible visible-model="article.visible" ng-class="{ 'visible' : article.visible }" ng-repeat="article in forests" ng-class-odd="'odd'">
                    <figure ng-style="{ 'background-image' : 'url(' + article.image + ')' }"></figure>
                    <main>
                        <h3>{{ article.name }}</h3>
                        <h5 class="sub">{{ article.location }}</h5>
                        <p>{{ article.summary }}</p>
                    </main>
                </article>
                <footer ng-style="{ 'height' : viewportHeight*2 + 'px', 'margin-bottom' : 0 - viewportHeight + 'px' }">
                    <div>
                        <h1>{{ message }}</h1>
                        <h3 class="sub">Scroll like the wind...</h3>
                        <h4>Infinite Scrolling Concept</h4>
                        <p>Scroll up and down to see animation as the elements enter and leave the viewport.</p>
                        <p>Playfair Display &amp; Source Sans Pro are what makes this look pretty.</p>
                        <p>Stock photos courtesy of <a href="https://unsplash.com/">unsplash</a>.</p>
                    </div>
                </footer>
            </main>
        </div>
    </div>
    <script src='//cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.14/angular.min.js'></script>
    <script src='//cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.14/angular-animate.min.js'></script>
</body>

Infinite Scroll Demo

angular, 文章列表，模板

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Infinite Scroll Demo

angular, 文章列表，模板

Angular.js 镜像开合动效

Angular.js 警示性LOADING动效

编辑器支持Emmet

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