包简介

Parallax.js pluging as drupal-library. Fork from pixelcog/parallax.js.

README 文档

README

Fork from https://github.com/pixelcog/parallax.js/ for using as drupal-library

Parallax.js

Simple parallax scrolling implemented as a jQuery plugin.
http://pixelcog.com/parallax.js/

Please also check our v2.0.0-alpha! We'd be happy to receive your feedback!

ATTENTION: please use the issue tracker for bug reports and feature requests ONLY! For questions and topics which go along the lines "I cannot get this to work" please turn to stackoverflow.com for help and use the tag parallax.js. Thank you for your understanding!

Installation

NPM

npm i --save jquery-parallax.js

Yarn

yarn add jquery-parallax.js

Bower

Please note that although Bower is still maintained, they recommend Yarn for new projects.

$ bower i --save parallax.js

Setup

Include parallax.min.js in your document after including jQuery (compatible with jQuery >= 1.7).

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="/path/to/parallax.min.js"></script>

Use these CDN links, provided by jsDelivr.com

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/parallax.js/1.4.2/parallax.min.js"></script>

Usage

Please note, that <!DOCTYPE html> on top of your document is required!

Simple version via data attributes

Note: for more complex requirements we recommend using the inner HTML markup below! With that it's possible to use the parallax effect with almost any HTML content

To easily add a parallax effect behind an element, add data-parallax="scroll" to the element you want to use, and specify an image with data-image-src="/path/to/image.jpg".

<div class="parallax-window" data-parallax="scroll" data-image-src="/path/to/image.jpg"></div>

Via JavaScript

To call the parallax plugin manually, simply select your target element with jQuery and do the following:

$('.parallax-window').parallax({imageSrc: '/path/to/image.jpg'});

Notes

What parallax.js will do is create a fixed-position element for each parallax image at the start of the document's body (or another configurable container). This mirror element will sit behind the other elements and match the position and dimensions of its target object.

Due to the nature of this implementation, you must ensure that these parallax objects and any layers below them are transparent so that you can see the parallax effect underneath. Also, if there is no other content in this element, you will need to ensure that it has some fixed dimensions otherwise you won't see anything.

.parallax-window {
	min-height: 400px;
	background: transparent;
}

Also, keep in mind that once initialized, the parallax plugin presumes a fixed page layout unless it encounters a scroll or resize event. If you have a dynamic page in which another javascript method may alter the DOM, you must manually refresh the parallax effect with the following commands:

jQuery(window).trigger('resize').trigger('scroll');

Using inner HTML for complex content

You can use the following syntax to enable complex content for the parallax:

<div class="parallax-window">
  <div class="parallax-slider">
    <span style="position:absolute; top: 400px; left: 400px;">Some Text</span>
	<p>Some other Content</p>
  </div>
</div>

Please note, that the div with class "parallax-slider" is essential here.

You then need to initialize it through JS and provide the naturalWidth and naturalHeight options in order to be rendered correctly.

$('.parallax-window').parallax({
    naturalWidth: 600,
    naturalHeight: 400
  });

This also makes it possible to use responsive images in the slider:

<div class="parallax-window">
  <div class="parallax-slider">
    <img src="/path/to/image.jpg" srcset="/path/to/image-400px.jpg 400w, /path/to/image-800px.jpg 800w, /path/to/image-1200px.jpg 1200w" sizes="100vw">
  </div>
</div>

Options

Options can be passed in via data attributes of JavaScript. For data attributes, append the option name to data-, as in data-image-src="".

Note that when specifying these options as html data-attributes, you should convert "camelCased" variable names into "dash-separated" lower-case names (e.g. zIndex would be data-z-index="").

Name	type	default	description
imageSrc	path	null	You must provide a path to the image you wish to apply to the parallax effect.
naturalWidth	number	auto	You can provide the natural width and natural height of an image to speed up loading and reduce error when determining the correct aspect ratio of the image.
naturalHeight	number	auto
position	xPos yPos	center center	This is analogous to the background-position css property. Specify coordinates as top, bottom, right, left, center, or pixel values (e.g. -10px 0px). The parallax image will be positioned as close to these values as possible while still covering the target element.
positionX	xPos	center
positionY	yPos	center
speed	float	0.2	The speed at which the parallax effect runs. 0.0 means the image will appear fixed in place, and 1.0 the image will flow at the same speed as the page content.
zIndex	number	-100	The z-index value of the fixed-position elements. By default these will be behind everything else on the page.
bleed	number	0	You can optionally set the parallax mirror element to extend a few pixels above and below the mirrored element. This can hide slow or stuttering scroll events in certain browsers.
iosFix	boolean	true	iOS devices are incompatable with this plugin. If true, this option will set the parallax image as a static, centered background image whenever it detects an iOS user agent. Disable this if you wish to implement your own graceful degradation.
androidFix	boolean	true	If true, this option will set the parallax image as a static, centered background image whenever it detects an Android user agent. Disable this if you wish to enable the parallax scrolling effect on Android devices.
overScrollFix	boolean	false	(Experimental) If true, will freeze the parallax effect when "over scrolling" in browsers like Safari to prevent unexpected gaps caused by negative scroll positions.
mirrorContainer	jQuery Selector	body	The parallax mirror will be prepended into this container.

Contributing

If you have a pull request you would like to submit, please ensure that you update the minified version of the library along with your code changes. This project uses uglifyjs to perform code compression.

Please use the following command:

uglifyjs parallax.js --comments -m -c -o parallax.min.js

LICENSE

The MIT License (MIT)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

levmyshkin/parallaxjs 适用场景与选型建议

levmyshkin/parallaxjs 是一款基于 JavaScript 开发的 Composer 扩展包，目前已累计 87.17k 次下载、GitHub Stars 达 0，最近一次更新时间为 2021 年 12 月 12 日，在 PHP 生态内属于活跃度较高的组件。

它主要适用于以下技术方向：「drupal」「EBT」「parallax.js」等业务场景。在实际项目中，围绕这些方向常见需要落地的问题包括：接口对接、性能调优、并发安全、与既有框架（Laravel / ThinkPHP / Yii / Webman 等）的兼容适配，以及生产环境的日志埋点与稳定性保障。

我们在过去多个企业项目中使用过 levmyshkin/parallaxjs 或与其功能相近的方案，如果你在选型或落地过程中遇到问题，例如 版本兼容、二次改造、私有化封装、与内部系统对接、生产 BUG 排查，欢迎联系我们协助评估。

围绕 levmyshkin/parallaxjs 我们能提供哪些服务？

定制开发 / 二次开发

基于 levmyshkin/parallaxjs 在你已有业务上做功能扩展、字段裁剪、UI 适配、与内部账号 / 权限 / 日志系统的深度对接。

BUG 修复 & 性能优化

线上偶发问题、内存泄漏、慢查询、并发异常等排查修复；针对高流量场景做缓存、队列、索引层面的调优。

项目外包 & 长期维护

承接完整的项目从需求 → 设计 → 开发 → 上线 → 长期运维；也可按月提供技术保姆服务。

yvsm@zunyunkeji.com QQ：316430983 微信：yvsm316 西安尊云信息科技 · 专注 PHP / Go / 分布式系统研发

与 levmyshkin/parallaxjs 相关的其它包

同方向 / 同关键字的高下载量 PHP Composer 包推荐，方便对比选型：

levmyshkin/jquery-colorpicker 0

The jQuery Colorpicker JS/CSS library. Fork from jaypan/jquery_colorpicker.

levmyshkin/jquery-mb-ytplayer 0

jquery.mb.YTPlayer plugin as drupal-library. Fork from https://github.com/pupunzi/jquery.mb.YTPlayer.

openy/commerce_addon 0

Provides an add-on purchasable entity.

levmyshkin/flexslider 0

Fork from woocommerce/flexslider. An awesome, fully responsive jQuery slider toolkit.

levmyshkin/micromodal 0

Fork from ghosh/Micromodal. Tiny, dependency-free javascript library for creating accessible modal dialogs.

kalamuna/kalastatic 1

Drupal integration module for the Kalastatic prototyping and styleguide tool

levmyshkin/parallaxjs

包简介

关键字：