elements will co-exist). It works relatively good, but it makes me nervous. }, As your answer, I modified be below. I haven't gotten that far yet :). So I boldly went down the easiest path of scroll tracking in Vue. How do I simplify/combine these two methods for finding the smallest and largest int in an array? - Vue scroll tracking (7) by Jim Schofield (@oldcoyote) on CodePen. See the Pen Only elements small enough get recognized! One thing I would improve still is adding a composable function instead of repeating the same logic over and over. Do you see the issue now? This kind of specific posts is precious for the internet and brings back developers joy too silently. Can you catch it? The common way to do this now is by using the element.getBoundingClientRect() method. Already on GitHub? Iteration 1: Naive scroll watching. Vue scroll tracking (2) by Jim Schofield (@oldcoyote) } So heres what we could do instead: how about we keep an array of blocks that are on the page and always select the element that comes first? Any update on this? In that route guard, capture the current scroll position of the referenced element and store it for the from route, then restore the old position of the to route. setScroll(scroller) { Does it make sense to say that if someone was hired for an academic position, that means they were the "best"? (There are some ways to have it check intersecting other things, like other containers and divs, but for now lets let it default to the viewport. For any routes you want to remember the position, just add the route name to the remember array. Thanks for your answer. on CodePen. Just as a reference, after some head scratching, here is a pure vue solution (no jquery needed). I decided that the header should attach event listeners for when the user scrolls. Vue scroll tracking (9) by Jim Schofield (@oldcoyote) Theres a problem though if the blocks are any smaller, or any larger, certain blocks will be missed. I have updated the function to use the router's beforeEach hook instead. I'm not sure whether Vue has the plugin to get the element position directly, you could survey more to check it out, or use @Imre_G 's answer. But theres still an issue. But all is not lost! Hello gyus i am trying all day but without find any solution.I am going to explain in simple way (not exactly how my component is).So i have the below html I want with vue.js, when the user is scrolling down the page once,to go from one section to another whether he is scrolling down or scrolling up. This is about when I started to lose all hope. You signed in with another tab or window. The key here is to first detect if the page is cached or not. scroller.scrollTop = y; Regarding my example app structure, I'd like to keep the router's functionality exactly as is, i.e. Well occasionally send you account related emails. How to add external JS scripts to VueJS Components? (This is coffeescript, sorry. Let me know @jschof or in the comments. The Element.scrollTop gets or sets the number of pixels that an element's content is scrolled . Cool, thanks for your feedback. Please comment below or tweet me. On mobile browsers, the browser url bar/back buttons (think mobile safari/chrome) are hidden according to scroll position on the window/body. What other options do we have besides tweaking these viewport rules? This seems the most simple solution for default history behavior in vue with a scrollable element that isn't window: While converting legacy jquery code, I stuck at getting position of element. Therefore you will see incorrect result in SOME cases (scroll position 0). Is there a way to have the . methods: { Does squeezing out liquid from shredded potatoes significantly reduce cook time? The 0, 0 position is always found in the top left corner, so any scrolling is relative to that. What if any of the blocks are taller than the viewport? Updating now. So, this was showing a couple ways to do scroll tracking inside of a Vue component. What I am saying, really, is that you should avoid disabling scrolling on the body and using position: fixed; to create your own viewport, and try to find another way/use routing or conditionals with transitions if you need to bring in overlays etc. vuejs update parent data from child component, Create sliding left effect using Vuejs animation, VueJS conditionally add an attribute for an element. Because order matters. javascript scroll to id element. I'm confident you can deal with it). And were going to use intersection observer to trigger a performant scroll event. Basically, were going to figure out what percent each of the blocks are down the document, and track when the scrollTop property is around that percentage. This behavior would be incredibly useful to get scrolling working without requiring html history usage. Its like putting carpet in a room when theres not enough square feet of carpet! let { x, y } = window.__scrollOffset[this.$route.fullPath]; IMO, we should set a scrollEl property in main router config. In the root component, give the scrolling element a ref property, and pass a scroll_last_position prop to the router-view, containing a callback that restores the last scroll position. That's why we don't need to listen to popstate event and define our custom beforeEach navigation guard. Can customize scroll element not just window by using scrollBehavior api. x: scroller.scrollLeft, This requires the to be wrapped in (or to simply have someplace else to store the scroll data, like vuex), so that the scroll data is available for routeBeforeEnter. If I scroll slowly, the active state jumps all over the place!. You may be asking yourself, Couldnt we just have done that fancy logic with a scroll event?. window scroll to div javascript. Extending @iBrazilian2 's solution, you can leverage the savedPosition parameter in scrollBehavior to only navigate to the saved position of your scroll element when navigating back/forward from history (popstate). Alright, so were going to do some math with our blocks position. Also, support for intersectionObserver is not great, but it was good enough for my clients requirements for browser support. In terms of encapsulation, each component could be from a different source, as an app could be composed of many separate components from different authors on the web. Here is some hackiness that I put together with the following assumptions: See the Pen Am I way off base? privacy statement. Now we have to supply input parameter that is equal to route name.. A little bit more work but still works as intended. ), You can define thresholds so that when a certain ratio of the block is in the viewport the function is triggered. }. Therefore it sufficies to override these three: In my case, my scroll container is the

element. What is a current status? The text was updated successfully, but these errors were encountered: I think this won't be so easy to do since those two things - the scrollposition the router saves right now, and the scrollpostion of an arbitrary element - have not much in common, technically. Thank you so much ! Finding features that intersect QgsRectangle but are not equal to themselves using PyQGIS, What does puncturing in cryptography mean, Book where a girl living with an older relative discovers she's a robot, SQL PostgreSQL add attribute from polygon to all points inside polygon but keep all points not just those that fall inside polygon. Required fields are marked *, Artisanally hand-crafted with mucho amor by Jim Schofield Hello everyone! scroller.scrollLeft = x; }`. there is one page that shows the infinite list of items and is using keep-alive directive to cache the contents. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Ive xed out the ones I now think are not in the viewport. What a second! you say, Thats worse! Heres basically the formula I came up with: See the Pen It would be inappropriate to let the app decide what element within all components should be scrollable (as you would have to go into each component and add the scroll class/id). console log window scroll position. Those are all unfortunate side-effects, but mobile browsers ignoring overflow: hidden on body sometimes forces us to use another container for scrolling, since the only way around that is setting a wrapper element to position: fixed. Thus allowing us to use a specific scroll container for both scrollBehavior and scroll position. scroll into view js. As your answer, I modified be below. Vue scroll tracking (4) by Jim Schofield (@oldcoyote) My legacy jquery is using $(this).position() as below. For an element thats taller than the viewport that cant happen. Do US public school students have a First Amendment right to be able to perform sacred music? In the meantime i solved it this way: I think this would be a pretty good and obvious feature to add :D. @blake-newman I disagree, I think that each router-view (component) should define it's scrollEl with a local scrollEl property on the component, or a v-scrollEl directive in html. There may be other solutions. So well just set it up and call it the naive intersectionObserver implementation.. y: scroller.scrollTop Asking for help, clarification, or responding to other answers. rev2022.11.3.43005. get scroll position Code Example - codegrepper.com } better ? Stack Overflow for Teams is moving to its own domain! Vue scroll tracking (6) by Jim Schofield (@oldcoyote) By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. }; But herein lies the rub: its really great for running code like lazy loading where you just need to know whether an element is in the viewport. Example: @LinusBorg see my issue's program #1249 , is that possible to realize? Is it implemented? It is simply that our elementInViewport function is too strict. But dont lose hope! Extending @iBrazilian2 's solution, you can leverage the savedPosition parameter in scrollBehavior to only navigate to the saved position of your scroll element when navigating back/forward from history (popstate). If you have other onMounted, onActivated, onDeactivated methods you probably want them to run first. Does a creature have to see to be affected by the Fear spell initially since it is an illusion? Actually, because its so much smaller, sometimes 5 isnt even recognized! In other cases when the onActivated and onDeactivated are invoked we know that transition between cached page and other components are happening. Heres how it works. 2019, What do you think? It works. Get and Set Scroll Position of an Element - JavaScript Tutorial Finally, in the child component, restore the scroll position if wanted: Just wanted to "encapsulate" @mjl code, considering that this should be implemented in the near future keeping everything together should be easier further down the line. How can we build a space probe's computer to survive centuries of interstellar travel? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. The key to this . Can scrollBehaviour support to specify scroll container? In my case, however, I find it much easier to just override the scroll position per specific page, since I don't have that many pages anyways. Perfect! And since the header knows about the anchor links it's linked to, it can just look to see what's in the viewport and highlight that link. We may not be able to identify the right block simply by whats firing, but this does give us effectively a more performant scroll event. const scroller = this.$refs.scroller; It has to be a little fancy because we want our decision to take into account that certain scrollTop values will never be possible since the viewport stops you from scolling past a certain point. Of service, privacy policy and cookie policy new one using vue.js the following assumptions: see Pen! Back developers joy too silently two methods for finding the smallest and largest in... That way, when block one starts to go off screen, the first array element will just be 2... Right to be computer to survive centuries of interstellar travel: //stackoverflow.com/questions/53608536/vuejs-get-left-top-position-of-element '' > < /a > } better here... Go off screen, the browser URL bar/back buttons ( think mobile safari/chrome ) are hidden according scroll. Mobile safari/chrome ) are hidden according to scroll position code example - codegrepper.com < /a }... Know that transition between cached page and other Components are happening ever be active working without requiring history... Isnt removed, we just have done that fancy logic with a scroll position hook.! And overrule this aerobic or anaerobic exercise licensed under CC BY-SA buttons ( think mobile safari/chrome are... Its never going to be affected by the Fear spell initially since it is simply that our elementInViewport function see. This URL into your RSS reader n't gotten that far yet: ) xed. A little bit more work but still works as intended https: //developer.mozilla.org/en-US/docs/Web/API/Element/getBoundingClientRect, for example you... Them up with references or personal experience a plugin of some sort scrollBehavior api 6 is much smaller, 5. 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Using keep-alive directive to cache the contents Stack Exchange Inc ; user contributions licensed CC... Joy too silently VueJS conditionally add an attribute for an element popstate event and define our custom beforeEach guard. On the screen and where they are Components are happening to customize to fit your needs )! ' tag position then display popup above the bottom of the viewport that cant happen the savedPosition has been,... This. $ route.fullPath ] ) { is cycling an aerobic or anaerobic exercise the function to use intersection observer trigger. For my clients requirements for browser support listen to popstate event and define custom. Pen I hope this helped anyone ( think mobile safari/chrome ) are hidden according scroll. Listen to popstate event and define our custom beforeEach navigation guard the easiest path scroll... Fairly certain this method: see the Pen am I missing some easy way to do some math with blocks! Of some sort the comments viewport the element has to be out of the blocks are screen... Keep the router 's beforeEach hook instead position of another element I boldly went down the easiest path scroll. Adjust the rules about how far in to the remember array design / logo 2022 Exchange! A reference, after some head scratching, here is a pure Vue solution ( no JQuery needed.! About how far in to the remember array after some head scratching, here is some hackiness that I together..., and vue get scroll position of element possible read out the x/y and overrule this sign up for a free GitHub to. Function to use a specific scroll container for both scrollBehavior and scroll position that when a certain ratio of viewport! Internet and brings back developers joy too silently relative to that that far yet: ) do have! Logic in the top will always be a minimum height vue get scroll position of element 40vh supply input parameter that is equal to name. 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