Javascript - onscroll moves smoothly to next anchor? How-To? - javascript

I'm building a single-page website with a few sections that each fill out the user's window; I've got that working.
What I want to do is:
When the user scrolls up or down he/she would ease-up or down (accordingly) to the section before or after. My sections each have a anchor at the top of them.
Here is an example of what I'm trying to achieve. Each article fills the page. Once you scroll you jump to the next article.
http://www.made-my-day.com/

I think you could get the job done using this plugin: https://github.com/alvarotrigo/fullPage.js.
Also, it seems to be actively updated. The last commit to the repo was made 3 days ago.
Cheers!

You should take a look at scrollorama and superscrollorama.
They are lots of cool effects that you can use for scrolling, including the one just like the site you provided.
--UPDATE--
After some talking with OP, I realized that both libraries don't do what he wants.
So, my new suggestion is reveal-js, a js presentation library.

You don't really want to do this on an onscroll. Consider that onscroll isn't really anything except an event which says "the view of the page is moving".
That doesn't mean that they're using the mousewheel to do it.
On a phone, your plan can make sense: then it would be like making a drag movement equal to a swipe movement. Great.
My preferred method for scrolling is to click the middle-mouse button, and then position the mouse just below the anchor point, so that I can read each block of text as it scrolls past the screen.
I don't even need a hand on the mouse, for long blocks.
So in my case, onscroll will fire at something like 60 events/sec, and if you auto-jump the articles, I'm going to be teleporting through your entire site's content.
Other people still drag the actual scrollbar.
Listening to the mousewheel and keys (up/down, pg-up/pg-down), rather than just any method of moving the page, is safer... ...but are you sure all articles are going to be small enough so that all content fits in all browser windows, even at stupid-small resolutions (iPhone 3)?
Because if people need to scroll to read content, then all of a sudden you're dealing with a much, much more complex solution:
You would be required to listen to regular (or customized) scroll requests of any kind, to get to the bottom of the current content... ...and then you'd have to provide some sort of visual queue to the user that they are now at the very bottom of the content, and continuing to use a trigger method (swipe/drag/keys/mwheel) would switch articles.
The first two are fine... ...make it feel spring-loaded, like smartphones do.
...what about the other two, where people might expect to hit them multiple times in a second, to get where they're going?

Related

Scroll the page up or down after scrolling reaches the top or bottom of a scrollable element in mobile

I know this question sounds confusing, so here's a better explanation:
I'm using a mobile. Say there's a scrollable element somewhere in the body. When I scroll the element and it reaches the bottom, I want instead of getting stuck for keep scrolling the element, it scrolls the page instead. That's also true if I reach the top of the element, it scrolls up the page, not getting stuck.
I tested it on two different mobile phones with the latest version of Chrome. The First one does exactly that. Weirdly enough, the second one only works when it gets to the top but not to the bottom. Is there any way to make it always work irrespective of the environment (mobile phone or browser) we are using?
Edit: What I'm trying to achieve with this
Desktop:
I want a way so that the buttons placed at the bottom of the content are not so distanced from the user's view. If we remove the scrollbar, then the users have to scroll all the way to the end of the content to be able to click the buttons.
The problem with this method is that, on mobile, in some browsers, it blocks the user from scrolling the page, even after reaching the end of the element. So they have to touch the edges of the screen to be able to scroll the page instead of the element.
What I want is, for users having difficulty touching the edges, they can still scroll the element. And when it reaches the bottom of the element, it scrolls the page.
I know this is weird. I know some of the better tricks like using the Read More-Read Less button, but it requires JavaScript I guess? I'm in a situation that's really hard to use JavaScript at the moment (shortly because of how bad the code is organized), and looking for a way if there's a simple trick using pure CSS. Any help or idea is appreciated!

How to recreate page scroll behavior in Google’s inbox page?

What I am trying to achieve is that when the user scrolls the page using the mouse-wheel (as there is no scrollbar), the page slides down with an animation to the next section of the page and while the animation is being played, mouse-wheel won’t work (to tidy things up, which is a good act).
The behavior I want can be seen in http://google.com/inbox or http://www.luxaqua-design.com/.
The thing I liked in Google’s inbox website is that it has the same effects with touch screen devices and their scrolling mechanisms.
I only need some pointers about the events that happen in this kind of scrolling and how I can manage them (specially, I am looking to achieve the same functionality with touch devices).
That is a parallax website, and actually there are many ways to accomplish that. But I would like to suggest to you the FullPage.JS by Alvaro Trigo, you can also try Skrollr by Prinzhorn
. Those are libraries that you can use to easily finish your goal.
By the way, you can also manually do that by creating a CSS that will make the images fit in every slide, then add JS so whenever you scroll it will go to another slide, but I tell you it is better to use libraries. :D
It is called Parallax scroll effect .. Here is a tutorial on how to make it!
https://www.youtube.com/watch?v=D75WTf_Y738

Recalculating and Repositioning Elements on Window Resize

I am a web design student and I am working on my portfolio site. I have a resume page that has a non-traditional design or layout. The problem I am running into occurs when the page is resized. Certain elements are pushed down as the window gets smaller. I need to find a way to adjust their top margin as the resize occurs, but I have not been able to accomplish this with media queries alone. Please see the following codepen for an example of the issue I am running into.
http://codepen.io/anon/pen/Hkpny
As the browser goes below 1440px, the boxes hanging from the ropes start to push down. Is there a way to use javascript to recalculate the margin-top and apply it to the elements when the user reduces or increases the window resize? The ultimate goal is to have the ropes stay connected where the red dots have been placed because I am going to give the hanging boxes a subtle swing or sway animation.
Any help would be greatly appreciated.
Thanks
I don't get it, all I had to do is to is what you did but for margin-top. You may want to play a bit with the values because I've never used scss before in my life (I'd do it with a <canvas> and javascript to begin with), but it works. http://codepen.io/anon/pen/iJgqn
Btw if you plan to display it in landscape mode on mobile, you may want to cut the shields left and right or it may get scaled very small. Maybe put them under the big shield in that case and get as much zoom on the rest as possible.
For a portfolio site I would recommend reconsidering the whole design. Just from this snippet, it seems the design is not very accessible and has too many dependencies. The concept is pretty cool but while you want to showcase your skills and creativity, you also want to showcase your understanding for accessibility (responsiveness), usability and what is trending right now (clean, minimal and flat design). I'm not saying you should fall in line and design what everyone else is, but you need to attract clients which is the whole purpose of a portfolio.

Need to prevent user from manually scrolling a web page. (Only navigate using internal links)

I am currently designing a webpage that is extremely vertical, my idea was that users would not scroll around the page, but only when they clicked on links with internal anchors (href="#someDiv"), the page would automatically scroll down to that section.
So that the elements of the page are organized into bundles, and the user clicks to go up or down to one section of the single page or another.
I've uploaded the page to the following url:
DWS - Prototype
The page is fairly straightforward, and I am using a smooth-scroll jQuery plugin for the automatic scrolling. All I want is for the user to not be able to wander about on his/her own.
I have tried using overflow:hidden, and looked for javascript or jQuery to get this done, but can't seem to find a viable solution. Overflow hidden prevents the page from loading past the screen, so you can't link to the other elements of the page.
I haven't really tested the HTML/CSS beyond Mac OS, but it works fine on Safari, Firefox and Chrome.
You can disable the scroll bar on a page using the following css property
body{overflow: hidden;}
This will disable both the scroll bar and the mousewheel (im not sure about Pg Up and Down Buttons)
While you definitely have an interesting concept I think it will be very hard to pull off the way you're wanting. What happens if I have the height of my browser window set so small that I can't see your Navigation menus and I also can't scroll? Chances are I'm just gonna get fed up with your site and leave.
When users see a vertical scrollbar they expect to be able to scroll up and down. Taking that way from users is more likely to frustrate and anger them as opposed to them thinking 'This is really cool'.
That being said you could load up jQuery and do something like this:
$(document).ready(function() {
$('html, body').scroll(function(e) {
e.preventDefault();
});
});
This should prevent the scrollbar from going up or down. disclaimer: I have not tested this.
I suggest you make the sections (partially) collapsible. E.g. like here.

Is there an idiom for letting an element scroll with the page only until it hits the top of the browser?

Basically I am looking to accomplish something similar to the affect that yelp uses to have the map follow you down the page on their search results page but I'd rather have it be instantaneous rather than have it catch up a few seconds after you scroll. I also don't want to just set the position to "fixed" because I want it to scroll until it would scroll off the page, and only then become "fixed" (and likewise, if the user later scrolls back up, I want the map to become "unstuck" and scroll back down the page).
I imagine that this could be accomplished with some convoluted javascript (using "watch", etc) that detects when the map is near the top of the page and changes the CSS values appropriately, but I was hoping for a combination of relative/absolute/fixed positioned divs that obviated the need for Javascript at all.
And of course what I'd really like is a drop-in library (or jQuery plugin, etc) that does just what I am looking for if such a thing exists. If no off-the-shelf scripts exist to do this, I'd love to hear from people with first-hand experience doing or trying to do the same thing.
Ok I gave up and did it the yelp way.

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