I am developing a mobile web application using jQuery and i have been requested to have each page transition into the next with an animation where the page is "split in half", then have the upper part slides up and the bottom part slides down, thus revealing the next page.
I have a small idea, but i dont seem to have the knowledge to get trough:
2 Canvas with display: none, each width width: 100%, height: 50%. - Check
Have the actual display be rendered into said canvas's - I have not the slightest of ideas.
Ajax the next page in a div below both canvas's - Check
Slide the canvas's in the respective directions - Check
Set the canvas's to display: none and restore them to their original positions - Check
Any thoughts? I'm open to use any other framework appart from jQuery, if that's the need. I am also open to change my canvas idea into something else.
EDIT:
As for clarification imagine the page to be a closet, but a vertical one so its doors (the actual page) will slide into the roof and the floor respectively (Its not the greatest of comparisons, but please bear with me) and thus let you see and interact with the content of the closet (The next page). This will go on and on until the application's workflow ends at the last screen, as there will be no back button.
I'm pretty sure I know what you want. You have multiple pages in your registration/form process and instead of having the old fadein/fadeout or sliding effects, you want the top half to slide up and the bottom half to slide down. In order to do this, I'd dump the canvas idea. I don't think that there's an easy way to do it using canvas as of right now. You could try using the html2canvas script, but it's not 100% accurate when it comes to rendering things like this.
As an alternative, I'd recommend using the following process. As a preface, make sure that every step in your form has its own container div (called something obvious like "step-wrap" or "step-container"). Then, when you begin the animation, the first thing to do is to duplicate the current step-wrap, calling it something like step-wrap-animation. Give the original wrap, step-wrap, a height of 50% and position the duplicate below the first with the same height of 50%. Both of the divs should have styling that has an overflow of hidden. Make sure, also, that you set the scrollTop of the duplicate div to scroll to the bottom so that it looks like a continuation of the first div. Everything from here should be smooth sailing.
Second, once you have everything in the first step working, start the animation process. You can do this however you want now that we have the splitting functionality figured out. Make sure that before you start splitting the two divs apart you put the next step behind the previous so that it unravels.
Essentially, what you need to do is:
Duplicate the div
Position both divs (the original and the duplicate) so that both the heights equal 50% and they look like continuations of each other
Animate the top div up, bottom div down
Here's a basic fiddle illustrating how something like this should work. Click on the rendered screen to get the animation going.
Take a look at backbone.js and marionette.js based on backbone.js.
backbone.js is MVC framework where you can define separate views. Marionette is an extension which supports regions and switching views based on whatever you want. Inside switching logic you can easily implement your transitions. Very generic answer but perhaps it will help you to get started.
Related
So essentially what I am looking to do is have a section that has a solid background at some point on my page, and at the top of that a pair of sunglasses that as you begin to scroll, the reflection of the sunglasses changes from a few different images, as well as some text changes below the sunglasses to match each change in the sunglasses. Then once the final image is scrolled through, you reach a new section with different information. I am not entirely sure what this effect is called or how to achieve it, though I am guessing it will require a significant amount of jquery.
An existing website that demonstrates the effect I am trying to achieve is https://software.dakno.com/ with the phone effect in the second area down the page. (I do not own this site nor am I affiliated with the owners). I used chrome developer tools to figure out how it is working, but didn't get too far.
The site that I am working on is http://zack2171.github.io . This is an example site I am using to practice css and web design. The second section is where I am trying to get this effect to work. If someone could help me out a bit and give me some pointers, that would be great. Thanks
To achieve your goal, your definitely looking towards a mixture of jQuery and css. Most of your time will be dedicated towards the scroll position and at what pixel (Scroll distance) is covered to showing your images/text. I would start to align your image that you want in a position that is either fixed or absolute, to give you a better adjustment. Then start to play around with jQuery's Scroll Position. My personal approach would be to to detect the distance scrolled and after reaching those milestones (Half a page / 3/4 of a page) you would use jQuery to verify the position and then display those extra materials you want to show. I hope this kind of let you onto a good starting path.
Quick example, scroll down within the script below and check the console it logs!
$(window).scroll(function() {
console.log($(window).scrollTop());
})
.box {
background-color:#333;
height:5000px;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="box"></div>
Finally trying to learn responsive design and needed a slideshow. I was able to easily get Owl Carousel up and running on one page and love it (right above footer on test page): http://cismiami.org/new.html
I'd like to tweak the slideshow to use for staff photos: http://cismiami.org/owlstaff.html
I found instructions for switching to arrows and getting them on the same line as the images, but cannot figure out how to get them to appear outside the image carousel instead of superimposed on them. I'm using a separate folder for the CSS files so I don't mess up the first sample, but here are my CSS files for the Staff page:
http://cismiami.org/js/owlstaff/assets/owl.carousel.css
http://cismiami.org/js/owlstaff/assets/owl.theme.default.css
Any help would be greatly appreciated.
I'm not a professional (just a hobbyist), but would like to think i know bit of this and that. It's difficult to test this myself since most of the assets are elsewhere and you're working on someone else's code, which itself is often messy to begin with. If you would've designed and coded it from the ground-up, you would know exactly how to do it. Learning so much in the process.
Anyways, in 'owl.theme.default.css' the arrows can be customized as you said. The quick and dirty method (and bad solution in this case) of getting the arrows outside of Carousel would be to add a negative positional value to left and right arrows. Since they are absolutely positioned, they can be moved around quite freely but are not exactly responsive on their own. This following method is breaking their intended purpose, staying on top of the pictures and thus with the flow.
Add negative value to left and right, say 40px:
.owl-prev { left: -40px; }
.owl-next { right: -40px; }
This will however break the responsiveness, since once you start scaling down the page, the arrows will disappear outside of the flow of the page. They are absolutely positioned after all, and reliant on their parent / container objects. Maybe there's a way they can shift back to these original positions once scaled down enough but it's difficult to say from these bare messy beginnings. So many things can go wrong. Maybe Media Query methods once it reaches certain pixel count, then changes to left:0; right:0;? I haven't used them myself, but will need to with my current project soon enough.
In my opinion, shifting the arrows outside of the nice responsive design is also against the look of the site. It'll break the cohesion. To me these arrows look absolutely fine on top of the pictures and hardly intrusive. Maybe adding some transparency / opacity to the arrows would make them less problematic to your eye, hover over them could resume their current visibility? That's about it for now.
I'm looking for directions rather than any specific code (wich I wouldn't spit on neither ;))
I have to code a portfolio for a friend, something like the first following picture (Sorry I only had Paint on the computer I'm asking with) :
The images should either be disposed and able to stay proportional whatever the screen size is or get arranged based on the screen size. So that the screen is always full and no need to scroll in any direction.
Then, as on the second picture of the linked album...
When clicking on a picture on the start screen, I'd like to open the screen in half and display the rest of the project. The rectangle you see up the second screen is supposed to be the same as in the center of the first one, supposed again to be the name of the portfolio. Of course I should be able to close it to get back to the page showcasing all the projects.
The effect I'm looking for is something similar to the about section here, but the other way :
http://www.b--i--g.com/about/
To sum up,
How to dynamically layout images full screen(s).
How to split in half the main screen and display other things in it.
I'm guessing here there is some keys javascripts doing all the magic so, again, any leads on wich scripts to use you know of or wich html/css structure is the best suited to do that kind of things.
I just don't have, this time, the time to start over multiples times (again) and scratch all over my code trying to make a victorian chimney blow white steam.
can you create a http://jsfiddle.net/ or http://plnkr.co/ to start with.
if you have an example webpage then you can just look at its source.
To sum up,
How to dynamically layout images full screen(s). - not clear what that means but, absolute positioning + javascript
How to split in half the main screen and display other things in it. - there are many ways to achieve that effect. in the link you sent, they are being overlapped by the middle content. image is rendered twice on either side and the middle content right half and left half of left and right image respectively.
please post a plunker to have other help you without creating the page from scratch.
I need to make a dynamic jQuery menu for showing products.
There will be one main picture with text and hyperlink on it, taking 60% of the screen, and on the right of it I need three small pictures (one above the other, horizontally) with 20% width of screen (but all together taking same height as the main one).
I need help for the animation. The animation will be next:
the three pictures on the right are sliding up, and the top most disappears, and a new one is appended to the bottom (at the same time as the top most is disapearing). Now, the one that dissapeared becomes the main one.
I've made an easy solution with .slideUp function, but that doesn't actually made the div go up, instead it is just losing it's height until it becomes invisible. It is not the solution I wanted.
Thanks.
EDIT:
I've managed to get some solution with jQuery.sliedUp function, but still I didn't get the effect that the client was asking for.
Now with a little bit more search, I've found that the jQuery UI hide function extension can do the effect I am looking for.
Here's an example: http://jsfiddle.net/WMPRJ/
My problem now is if you click on the top div, while it is sliding up, the bottom div does not follow it up and take its place. I need to do that. Please provide me with a solution.
Append the current main to the bottom of your thumbnails, slide up the top one and remove() it. Take its src attribute and set it to the main image.
Here's some (sorry, not a self-contained example) code that should get you where you're going. If you actually take the time to read it you'll see it does exactly what I described in the first two sentences.
$('.thumb').first().slideUp(function(){
$('#main').attr('src', $(this).attr('src'));
$(this).remove();
});
if this a homework please append homework tag.
I can't provide you with full HTML and javascript, but an idea. You have two blocks. Float the right block;
Left Block - 60%.
Right Block - 20% (float:right)
Define height for Right & Left block and give overflow:hidden for Right Block.
Now define a click function like this.
var nextAnimateImageId = 1;
$("#my_button").click(function{
jQuery("#my_image"+animateImageId).animate({height:'toggle'});
nextAnimateImageId = nextAnimateImageId + 1;
});
My idea is, if you have 5 images, only 3 will be shown becaue of defined height and overflow:hidden property. When you animate the first image to height=0 (which is what toggle does), the 4th image will come up due to the space freed up, giving you a nice scroll up animation.
I have been trying to understand how they did those effects in http://artofflightmovie.com/ with no success so far. I am not even sure what to google for for help. Could any one ellaborate on it and perhaps put links to plugins\tutorials\other websites doing the same thing?
There is already a similar question, but it didn't help me a bit ^^
Custom scroll bar behavior in Javascript?
All of the answers here so far are spot on and cover various pieces of the execution. Joseph's post about how we 'contained' and 'maneuvered' the site are dead-on, and those mentioning jQuery accurately depict our heavy reliance on it :)
With that said, the other concept of moving along a non-linear path was probably the most difficult part. We literally used an Illustrator file that was setup like a piece of graph paper and drew a bezier path that reflected the movement we wanted from the scrollbar. Then we 'downsampled' the path by converting the curved lines into a bunch of straight lines that represented the curve (similar to downsampling audio waveforms) to keep performance/speed high. We took those coordinates, gave them to our designer, and he created a gigantic design file and literally designed each content section at the designated 'stop' points. Next we mapped each coordinate along the path to a percentage value of the scroll position. We stored these values in a JavaScript array. Lastly we wrote some JS functions that we pipe the scroll position through to determine how to offset the positioning of the site 'container'. (It basically 'tweens' between each coordinate allowing us very fine/precise values at any given scroll percentage) The scroll functionality is handled by a tall div that basically sets our document height to force a scrollbar, and we just read it's position during a Scroll Event and slide the container around to where it should be using the above mentioned functions.
The parallax effect is achieved by applying a percentage of the position offset (what we use to move the container around) and applying it to the sub-containers of the various content sections. This makes the subcontainers move slower or faster than the background, but on the same motion path.
Lastly, the little snowboarders and helicopters (which have CSS3 rotations in addition to x,y movement in some browsers!) are positioned by using a simliar array of 'start' and 'end' positions and tweening between them based on the scroll percentage.
I'll leave it at that to keep this from turning into a book, but I'd be happy to elaborate on specifics if you're interested.
Full disclosure: I was lead developer on the site. I'm not posting to 'toot my own horn' or anything like that, just to be helpful and provide assistance to a fellow tinkerer. I come here a lot to dig through and get insight from others. (many, many thanks to those who have helped us!) Also, shameless plug, but the film is breath-taking... go rent it if you haven't yet, you won't be sorry. :)
That's a pretty cool website ;)
Basically using some javascript you can detect how far a person has scrolled. Considering the amount of scrolling you can move the contents of your webpage around if their position is absolute.
There are a couple of jQuery plugins that allow you to do simular stuff although I'm not sure you can "scroll through" a sequence of coordinates.
Here are a couple of jQuery plugins that helps you get simular effects:
http://johnpolacek.github.com/scrolldeck.js/
http://johnpolacek.github.com/scrollorama/
http://demos.flesler.com/jquery/scrollTo
http://webdev.stephband.info/parallax.html
I just picked a couple I'm familiar with but there are many plugins that are alike.
edit:
Decided to add some more simular websites for your pleasure.
http://www.activatedrinks.com
http://www.beetle.de
http://www.nikebetterworld.com
the whole page is an "overlay" - a full width and height wrapper <div>. sort of how modal windows do their "full page shadow" effect and have a small div float inside. the whole page content is in that wrapper. the scroll path is a script. the script captures the body scroll and moves the contents of the div accordingly to the positions provided by the script. with a body long enough to be scrollable (which cannot be seen since the wrapper covers the whole page), it's as if you are scrolling sideways, upwards etc.
an analogy is a modal window. the wrapper is the full-page shade. the modal window is the content. and notice how modal windows stick to the middle? that's using a script to calculate it's position to stay in the middle by moving the modal window down, relative to the page's top. but in that website's case, they move in different directions.
It doesn't seem too complicated.
Using the .scroll(function() {}) in jQuery you listen for a scroll event. When triggered you set the position style (left, top) of the content div to give the appearance of moving sideways instead of down.
I guess you'll need overflow:none property on the div to prevent users from scrolling over the area you don't want them to see.
Sounds like a lot of effort for a clunky user interface in my opinion.