scroll

'Wheel' events on touch screens

由 左心房为你撑大大i 提交于 2020-01-15 02:46:25
问题 I have this fiddle https://jsfiddle.net/316n1xmL/1/ which works perfectly how I need it to on desktop. Counts up or down based on wheel scroll direction and adds and removes classes. The issue I am running into is how to do this on touch screens. I have tried hammer.js but their documentation is really bad and not clear. Sadly the site I am building is using bootstrap 4 which means I cannot use juqery mobile since BS4 uses jquery 3 which does not support jquery mobile. Any help is appreciated

Elasticsearch——分页查询From&Size VS scroll

由 女生的网名这么多〃 提交于 2020-01-14 15:45:57
一：ES的存储和查询原理 Elasticsearch中数据都存储在分片中，当执行搜索时每个分片独立搜索后，数据再经过整合返回 。 二：如何分页查询呢？ （1）抛出需求问题 按照一般的查询流程来说，如果我想查询前10条数据： 1 客户端请求发给某个节点 2 节点再转发给某个分片，查询每个分片上的前10条 3 各个分片的查询结果返回给节点，然后再整合数据，提取前10条 4 节点再返回给请求客户端 那么当我想要查询第11条到第20条的数据该怎么办呢？这个时候就用到分页查询了。 （2）两种解决方式 1.第一种from-size"浅"分页 概念："浅分页”是查的页数比较小;"深分页”是查的比较深。 举个例子：百度最多查询前76页，为什么只有76页，而没有第1万页，假如查询第1万页就是深度分页了。 带着为啥百度只能查询76页的疑问，我们分析下浅分页和深分页的原理是什么？ 假设每页大小是10条，查第77页761-770条数据。 浅分页的原理就是要查询每个分片上的前77页的前770条数据，然后不要前760条，只返回761-770的数据。这样其实白白浪费了前760条的查询。 查询的方法如： { "from" : 760 , "size" : 10 , "query" : { "term" : { "user" : "yao" } } } 其中，from定义了目标数据的偏移值

How to find out if the user scrolled to the end of a HTML container with jQuery?

由 孤街醉人 提交于 2020-01-14 14:42:08
问题 how do I find out if the user scrolled up to the top or down to the bottom in a scrollable container? Does jQuery offer any mechanisms? css: #container { display: block; width: 250px; height: 25px; background: green; } #scrolling { width: 250px; height: 300px; backround: red; overflow: auto; } http://jsfiddle.net/Hmaf2/2/ Thanks a lot! Pat 回答1: You can test the scroll position by comparing the height, scrollable height and scroll offset of the div: $(document).ready(function(){ $('#scrolling'

Prevent subview from scrolling in a UIScrollView

由 戏子无情 提交于 2020-01-14 12:40:14
问题 I have a UIScrollView subclass with a certain subview I'd like to prevent from scrolling (while all the other subviews scroll as normal). The closest example to this I can think of is UITableView 's "index strip" on the right side (look in the Contacts app to see an example). I am guessing this is a subview of the table (scrollview) but it does not move as the user scrolls. I can't seem to make my subview stay put! How can I accomplish this? 回答1: The trick is to adjust the frame of the "non

setting position of a control doesn't seem to work when scroll is 'moved' (c#, winforms)

由 夙愿已清 提交于 2020-01-14 10:18:13
问题 Description of the problem: Create a 'custom control'. Set it's property AutoScroll to 'true'. Change it's bg-color to green. Create second 'custom control'. Change it's bg-color to red. On main form place first custom control In code create 20 instances of second control Add a button and in the button: In code set their position in loop like c.Location = new Point(0, y); y += c.Height; Run App. Press the button Scroll the container Press the button again and can someone please explain me WHY

While Scrolling: if scrollTop() equals to or reaches a value execute event

由 自古美人都是妖i 提交于 2020-01-14 05:26:05
问题 I'm trying to fire an event when scrolling down to a certain point/value and execute again when scroll back up and down again. I tried: $(window).scroll(function(){ var sTop = $(this).scrollTop(); if(sTop == 300){ //execute event - failed } }); The above does not fire anything with the both mousewheel and dragging the scrollbar. but when I changed the condition to greater than or equal to, the event is being executed but multiple times when scrolling further down. if(sTop >= 300){ //execute

fancybox - how to scroll page when fancybox is focused

由 回眸只為那壹抹淺笑 提交于 2020-01-14 03:59:07
问题 go to: http://fancybox.net/ open any example (on bottom page) when the mouse is hovered over the content inside the fancybox, the browser main window can´t be scrolled. when the mouse is anywhere else it works. i dont want this behavior. how would you fix this? the page under the fancybox modal doenst scroll, when the mousecursor is inside the fancyboxmodal. 回答1: Look in the source code of Fancybox, and replace the code marked by if ($.fn.mousewheel) {...} with the following (The fullly

vue javascript 实时检测滚轮（scroll）距页面顶部的距离

由 谁说我不能喝 提交于 2020-01-14 03:41:13
版权声明：本文为CSDN博主「 MICHAEL_LIU 」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。 原文链接：https://blog.csdn.net/liu798675179/article/details/96472595 vue javascript 实时检测滚轮（scroll）距页面顶部的距离 mounted() { window.addEventListener('scroll', this.handleScroll); }, methods: { handleScroll() { console.log(document.documentElement.scrollTop); }, }, destroyed() { window.removeEventListener('scroll', this.handleScroll); } 可以用来做距离顶部多少距离时，返回顶部的按钮显示，反之隐藏。 来源： CSDN 作者： 最有才的张钧 链接： https://blog.csdn.net/Jkssns/article/details/103962364

jQuery Grab Content and Scroll page horizontally

由 感情迁移 提交于 2020-01-13 19:11:07
问题 My goal is to grab content x and scroll page horizontally while mouse is moving until mouse stops (mouseup event), similar to a tablet swipe action. Seems easy enough.. Get clientX on mousedown, scrollLeft by ClientX while moving, Turn off mousemove function when done. I've been playing with it for awhile and can't get the scroll effect I'm looking for.. What am I doing wrong here? $('#thediv').on('mousedown', function(event) { var e = event; $('#thediv').on('mousemove',function(event){ new_e

Jquery follow scroll

由 南笙酒味 提交于 2020-01-13 18:53:15
问题 I have a sort of sidebar on my website, which has to scroll down together with the user so that it is always in the view. The code I'm using now is actually working fine however there is one problem. On smaller screens the sidebar scrolls before your at the sidebar thus making it impossible to see it all even if you scroll. So what I want is the sidebar to scroll with the bottom instead of it being pushed down with the top so that when you reach the end of the sidebar it starts to scroll.
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