i am trying to achieve an effect in angularjs/ionic, that
handles an image resize upon scrolling beyond the content ("bounce effect").
I.g. a header-image is under the header-bar, that should adjusts in height, when
the the scroll area is pulled down
Here is an Example of what i'm looking for.
I was trying to achieve this by using the $ionicScrollDelegate method getScrollPosition(), since that gives me scroll position. But the main problem is, that the image is inside the scroll area and that bounce box outside. So i cannot access the height of this image.
Anyone tried something similar?
I was searching on here and everywhere i could think of, but couldn't find a solution.
Related
I'm looking for a way to fill the viewport with elements based on the viewport size.
Is there a way to use methods like createElement() and load() to do this?
Specifically, I'm trying to fill the viewport with small circle divs. The way I have it set up now, is to just manually code them all into the html and set overflow to hidden, so that the divs beyond the screen size aren't visible.
If this isn't possible, is there a way to tell the JS I'm running to animate only those divs which are visible?
I have a codepen with the divs set up here as a reference for what I'm talking about. At full screen size, you can see that there are divs missing from the bottom of the page.
I'm using stellar.js to apply a parallax effect to a background image. The height of the container around the background image is set by javascript to the window height minus the height of the header. I have the background image set to cover in css and want it to fill the container regardless of the screen size. This works fine with no parallax effect, but once I apply the parallax effect the positioning changes, so when the container is tall the image doesn't fill it.
I spoke to Mark Dalgleish, the creator of stellar.js to see if he had any ideas, and he said that the background image has to be taller than the container for it to fill it, which is pretty much the conclusion I had come to. So I'm wondering if there is a different way I can accomplish this. Does anyone have any ideas?
Here's the site I'm trying to make it work on. If you resize the browser window by pulling it in from the side and reload the page you will see what I mean. There's a gap below the image.
http://sonomarinwebdesign.com/agnitio
I'm not quite sure if this would work but something to try is to add javascript that runs when the page resizes:
$(function() {
$(window).resize(function() {
// replace "100" with whatever makes it the best height:
var newHeight = ($(window).height() - 100);
var pictureHeight = 823;
if (newHeight > pictureHeight) newHeight = pictureHeight;
$(".an-yee-tsee-o.parallax.panel-pane").height(newHeight + "px");
});
});
The point here is that you want to resize the parallax background panel when the window is resized. Even if this isn't quite right, hopefully it gets you on the right track. Best of luck!
Note - I was trying to fix the way the site looks when you load it on a "short" screen and then resize the browser larger. For your issue of the background not filling you can scale your background image up for that in a tool such as gimp for larger screens (or get a larger image to start with).
EDIT - Added code to make sure the div never ends up larger than the picture. You can also run this same code on load. It might not look as originally intended but it should work at least.
I finally solved this by using skrollr.js instead of stellar.js, and then setting the background image to "background-attachment: fixed" in the css. The scripts give a similar effect, but scrollr.js starts with the top offset at 0 so it doesn't leave a gap below the image.
I need to dynamically resize a div based upon the positon of the browser scroll bar. The desired behavior is to have the featured div of a lightbox be rendered at 800px wide when it is opened, but then scale down to 1/3 that size as you scroll down the page, and then continually increase in size as you scroll back up. So far I've been able to get it to scale up as I scroll down, but am unable to get it to scale down. If anyone can help me out with this, it would be very much appreciated.
http://jsfiddle.net/juicesandmilks/CnuAL/3/
-Michael
Works for me:
http://jsfiddle.net/6APeM/1/
You have to remove the script tags if you put your js in the javascript part of jsFiddle.
I'm having a little trouble getting my head around a Javascript animated scroll issue.
I'm using the SuperScrollorama Jquery plugin which is built on-top of the Greensock JS tweening library.
The fundamental effect I'm after is to "pin" a section down, then use vertical scrolling to expand some content, then "unpin" the section once the content is fully expanded, so the user can scroll on - i.e. http://blueribbondesign.com.au/example/
But when I try to apply this same effect to multiple sections one after the other, everything gets all broken: the "unpinned" content below the pinned element is pushed off screen and it seems to miscalculate the height of the element when it performs the animation in reverse (i.e. scrolling back up the page). - i.e. http://blueribbondesign.com.au/example2/
I've been endlessly fiddling with the "position:fixed" and "pin-spacer" div, and tried attaching the Superscrollorama plugin to various containing elements, but still cannot work out how to get it to work.
Any help from the brilliant crowd-sourced minds of the web would be much appreciated,
Cheers,
TN.
I've been working with this issue myself. What happens is there's a blank div spacer put above the section being pinned with a height that you've defined in the pin() function. Secondly, the pinned element gets a position:fixed assigned to it. Both of these things allow the scroll bar to continue down the page while the element stays affixed. In turn, whatever you had below that section gets bumped down because of that spacer div's height.
If your pinned element is centered horizontally, first give it a left:50%, margin-left:-{width/2}px to fix it from pushing to the left edge.
Next, you'll have to detect the pin/unpin events (which are offered by the plugin as parameters additional to "anim"), and change the section underneath to also toggle a fixed/relative position. When you change that underlying section to be at a fixed position, be sure to set its "top" property to whatever the pinned element's height is. Once the pinned element becomes unpinned, change it back to relative positioning. Does that make any sense?
It seems that different techniques will call for different fixes, but those things are what I'd pay attention to... fixed positioning, and then using the pin/unpin events for adjustment.
Im trying to use this plugin:
http://www.jacksasylum.eu/ContentFlow/
2 points:
I want to know how can I get it into my div and stay inside the volume of the div? As it is right now, my div is 185px, but when I put the coverflow inside of the div, it breaks out of it and plays outside the div.
If I take the height off the div, it will stay inside the div, but... the div MUST remain at height of 185px. I dont really see any padding or margin elements inside the CoverFlow css, so im not sure what im supposed to edit.
I also have plans to put the coverflow into an even smaller div on another page, so I want to know how to scale it and fit into my set-height div properly without problems.
When I load the page into another div thats in another page, the coverflow will not load. So basically, the coverflow only loads in its own page. Ive put the links to the .js and css into the main file that loads the coverflow page, but its still not working.
Can anyone help me figure out these 2 important points?
What is happening there is that ContentFlow completely ignores the container's height; it seems to be using some kind of fixed aspect, with only width being taken into consideration, and the height being calculated from that.
Therefore, the simplest solution, in your case, given that you have a fixed height, is to reduce the width of the container, therefore making ContentFlow calculate an smaller height.