added transition and states for horizontal scroll arrows, and some css tweaks and fixes
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3c93d6553a
commit
a5ced91030
2 changed files with 32 additions and 30 deletions
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@ -15,22 +15,13 @@ class FeaturedCategory extends React.PureComponent {
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});
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}
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componentDidMount() {
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const prevIcon = ReactDOM.findDOMNode(this.refs.scrollPrevious);
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const nextIcon = ReactDOM.findDOMNode(this.refs.scrollNext);
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this.scrollPreviousHandler = this.handleScrollPrevious.bind(this);
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this.scrollNextHandler = this.handleScrollNext.bind(this);
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prevIcon.addEventListener("click", this.scrollPreviousHandler);
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nextIcon.addEventListener("click", this.scrollNextHandler);
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}
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handleScrollPrevious() {
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const cardRow = ReactDOM.findDOMNode(this.refs.rowitems);
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if (cardRow.scrollLeft > 0) {
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// check the visible cards
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const cards = cardRow.getElementsByTagName("section");
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var firstVisibleCard = null;
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var firstVisibleIdx = -1;
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let firstVisibleCard = null;
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let firstVisibleIdx = -1;
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for (var i = 0; i < cards.length; i++) {
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if (this.isCardVisible(cards[i], cardRow, false)) {
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firstVisibleCard = cards[i];
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@ -61,8 +52,8 @@ class FeaturedCategory extends React.PureComponent {
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// check the visible cards
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const cards = cardRow.getElementsByTagName("section");
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var lastVisibleCard = null;
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var lastVisibleIdx = -1;
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let lastVisibleCard = null;
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let lastVisibleIdx = -1;
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for (var i = 0; i < cards.length; i++) {
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if (this.isCardVisible(cards[i], cardRow, true)) {
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lastVisibleCard = cards[i];
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@ -108,8 +99,8 @@ class FeaturedCategory extends React.PureComponent {
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}
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const component = this;
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var diff = target - cardRow.scrollLeft;
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var tick = diff / duration * 10;
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const diff = target - cardRow.scrollLeft;
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const tick = diff / duration * 10;
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setTimeout(() => {
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cardRow.scrollLeft = cardRow.scrollLeft + tick;
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if (cardRow.scrollLeft === target) {
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@ -157,13 +148,6 @@ class FeaturedCategory extends React.PureComponent {
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return 1;
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}
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componentWillUnmount() {
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const prevIcon = ReactDOM.findDOMNode(this.refs.scrollPrevious);
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const nextIcon = ReactDOM.findDOMNode(this.refs.scrollNext);
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prevIcon.removeEventListener("click", this.scrollPreviousHandler);
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nextIcon.removeEventListener("click", this.scrollNextHandler);
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}
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render() {
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const { category, names } = this.props;
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const leftNavClassName =
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@ -176,10 +160,20 @@ class FeaturedCategory extends React.PureComponent {
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return (
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<div className="card-row card-row--small">
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<div className={leftNavClassName}>
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<Icon ref="scrollPrevious" icon="icon-chevron-left" />
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<a
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className="card-row__scroll-button"
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onClick={this.handleScrollPrevious.bind(this)}
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>
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<Icon icon="icon-chevron-left" />
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</a>
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</div>
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<div className={rightNavClassName}>
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<Icon ref="scrollNext" icon="icon-chevron-right" />
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<a
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className="card-row__scroll-button"
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onClick={this.handleScrollNext.bind(this)}
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>
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<Icon icon="icon-chevron-right" />
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</a>
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</div>
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<h3 className="card-row__header">
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{category}
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@ -205,18 +205,19 @@ $height-card-small: $spacing-vertical * 15;
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overflow: hidden;
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white-space: nowrap;
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position: relative;
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/*hacky way to give space for hover */
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padding-right: 20px;
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margin-right: -20px;
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padding-right: 30px;
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}
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.card-row__items {
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width: 100%;
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overflow: hidden;
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/*hacky way to give space for hover */
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padding-top: 20px;
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margin-top: -20px;
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padding-right: 20px;
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margin-right: -20px;
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padding-right: 30px;
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margin-right: -30px;
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}
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.card-row__header {
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margin-bottom: $spacing-vertical / 3;
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@ -229,7 +230,7 @@ $height-card-small: $spacing-vertical * 15;
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top: ($font-size * 1.4 * $font-line-height) + ($spacing-vertical / 3);
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height: ($width-card-small * 9 / 16) + ($font-size * 0.82 * $font-line-height * 4) + ($spacing-vertical * 4/3)
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}
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.card-row__nav .icon {
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.card-row__nav .card-row__scroll-button {
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background: $color-bg;
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color: $color-help;
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box-shadow: $box-shadow-layer;
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@ -239,6 +240,13 @@ $height-card-small: $spacing-vertical * 15;
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left: 0;
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top: 36%;
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z-index: 2;
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opacity: 0.5;
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transition: transform 60ms ease-in-out;
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&:hover {
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opacity: 1.0;
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transform: scale($card-link-scaling * 1.1)
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}
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}
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.card-row__nav.left-nav {
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left: 0;
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@ -248,4 +256,4 @@ $height-card-small: $spacing-vertical * 15;
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}
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.card-row__nav.can-scroll {
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display: block
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}
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}
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