How to split page and reveal stuff underneath? - javascript

I've already achieved this on my iPhone app, but I want to know if it's possible on an HTML page, maybe using CSS effects or similar.
As you can see, the current view is split, the bottom part is moved down, and another view is revealed underneath. I have a page I'd like to try this on. Any ideas if this is possible, and any specifics as to how I can do it? I'm quite new to HTML coding, so please take it easy on me. :)
Thanks in advance!

Here's an example to get you started http://jsfiddle.net/Cquhj/
A few things to take away from this pattern:
The middle div has an overflow: hidden; property and height: 0px.
The trigger icon has an event that tweens the height of the middle div to the size you want.
Edit:
I really like the resources and answers given and I would add this to the list http://wiki.forum.nokia.com/index.php/Mobile_Design_Pattern:_Accordion_Menu

here an update, more iphone-like
http://jsfiddle.net/mFeyn/1/
it miss the triangle in the bottom of the folder once is clicked and calculate the height of the container when there is more than 4 icons.

Yes, it's absolutely possible, nothing out of the ordinary and CSS will definitely be needed.
As it is, your question is extremely generic and an answer would be: learn about HTML and CSS and the combination of the two for creating standard compliant web page layouts. You might want to read about the box model too. To solve your problem you need to know about the use, positioning and floating of a series of <div>s to achieve the desired layout.
If you want to add animation, like some part of the split view floating down into position, you will need Javascript as well.
Possible starting points for your research on SO:
Why not use tables for layout in HTML?
https://stackoverflow.com/search?q=css+div+column

Here is a code example that might give you a little bit more if your plan is to emulate iOS 4 folder behaviour using jQuery.
The view is basically split into rows and I played around w/ the background position css attribute to allow the background split illusion.
http://jsfiddle.net/hKHWL/

This is very possible, but it's kind of like asking "I want to program Civilization, and I'm quite new to C; how do I do it?" ;-)
I would strongly recommend picking up a good "DHTML" (Dynamic HTML) book. For instance, I rather enjoyed this one, from SitePoint: http://www.sitepoint.com/books/dhtml1/
If you're not the book-buying type, sites like SitePoint and AListApart can certainly explain things too, but not in as organized of a format.
Good luck.

I know this is an old post/question...
but I'm doing this with dynamic heights and positions here:
http://webkit-os.pixelass.com/iframe/
(only works in Chrome and Safari)
I am using jQuery and two divs with the same image.
Dynamic positions means.. you can move the folder to a different position or page.
Dynamic height means... the height is relative to the number of Icon-rows in the folder.
The folder even opens above and below if the content is too hight to be displayed below.
(opening the folder from the Dock does not work yet)

Related

Is there a way to make a triangular, clickable box in html/css?

Ok, so I want to develop a web portal page that can direct you to multiple websites that I have. I want to design it like this:
Where each section is a clickable section with JS and when hovered it pops up a bit and fades into a picture of some sort. Anyways, my question is how would I get a div to be angled like this? I read about using the border trick to make a CSS triangle, but I don't believe that will work for this. I was also thinking if there were a way to use the CSS transform property somehow but I cannot like up the triangles uniformly around the page and then keep it scalable so it's responsive. Does anyone have any suggestions? Or is this even possible??
CSS offers something called clip-masks. This allows you to move past basic color shapes and allows for the shaping of images. This would look good when used as the links you want.
See more about clip-paths: https://css-tricks.com/almanac/properties/c/clip-path/
A useful site for deriving the actual CSS for the shape can be found here: https://bennettfeely.com/clippy/
This used in conjunction with media queries for responsiveness and absolute positioning for arrangement should get you where you want to be.
I found this site, maybe it will help:
CSS Triangle Generator
I think you can align different triangles with position: absolute too.

Updating overflow without removing elements from the div?

If I used:
parentNode.removeChild( divHere );
It does work and the scroll bar for the overflow updates accordingly. If I use JS to 'divHere.style.visibily = "hidden";' well that doesn't work anymore. What I've done pretty much is create 115 divs that are in a container div and the user can select filters to show only the images they want, all the divs have a background image and are essentially just an image with a name under it.
So I have 2 questions:
1) Is there a way to update the overflow and make it not take hidden elements into consideration?
2) If 1) isn't possible than when I use removeChild to remove a div from the container, it does indeed disappear but what exactly happens to it? Does it disappear off the page because it's not added to any element on the page? So it essentially works like it's hidden? I don't have to worry about people seeing the images in some completely weird spot in some lesser used browser?
and well 3) If you have a better method of doing this it would be greatly appreciated
Thanks in advance for any help
The removeChild() method removes a specified child node of the specified element and returns the removed node as a Node object, or null if the node does not exist.
That null means that the element is now removed from your mark-up.
You should use it to not let the browser take that into consideration, as the browser will not find that element in the mark-up.
You can do it in this way as well:
$(document).remove(object_to_remove);
FInd more about it: http://api.jquery.com/remove/
I believe I may have a response for the third part of your question. That large number of divs in your containing div and the usage of filtering make me think you might want to look into using the DataTables plugin for jQuery (http://www.datatables.net/). It has some very nice features for sorting/filtering/etc. a large number of data elements and supports a variety of data sources. There are also some plugins for the plugin if the basic functionality isn't enough for you.
There is a bit of a learning curve if you want to do more complex stuff with it, and it might be tricky to get used to if you haven't worked with jQuery much (though being someone who hasn't worked with jQuery all that much due to not doing much web development, I can say that I quite like using it whenever I get the chance, although that may just be due to me enjoying learning how to do new things in programming), but I feel that if you're willing to spend the time on it you will have something much more maintainable than what you currently have.

Intelligent resizing background

Excuse me for this, probably spoony, question. But when skinning controls/elements I'm usually using the following concept (I don't know the correct name, but I first saw it when creating custom WinXP themes). The basic idea is to set up a sort of margins in the image that restrict resizing, only the inner parts are allowed to stretch.
http://img42.imageshack.us/img42/6188/image7rq.jpg
When using this method in my regular programming work life is easy, I just BitBlt the four corner and then StretchBlt the remaining parts into place. However I'm no expert on HTML and I cannot find anything on the internet about it. It's kinda difficult to search when you don't exactly know the name of the concept...
a) How is this method called?
b) Does anyone know how to do this using HTML, CSS, Javascript, etc.? Preferably I would like the background of a DIV element to be themed like this. It's the intention to not spend the rest of this day slicing images in Photoshop ok, that makes me feel so utterly miserable..
There's several ways to approach this. If you are allowed to target newer browsers and allow old browsers to degrade to square corners and non-gradient backgrounds, check out the new CSS 3 features.
If, however, you need to be able to support old browsers, you're going to have to fire up Photoshop, create some background images, and nest some html elements. If your background only has to scale in one direction (verically or horizontally) check out the sliding door technique.
Wouldn't be easier to use css instead? Check thishttp://jonraasch.com/blog/css-rounded-corners-in-all-browsers or do a search for 'css rounded box' or 'css rounded corners'

How do I access separate points/sections on a single image in html/javascript?

I am learning to develop mobile applications, quite in the initial phase.
This query is not related to mobile but more to html/css/js.(for
I intend to make a simple game, where a picture is seen, a few options are available and the user can drag and drop these options onto the image.
eg. There is an image of a plant > options are #leaf #stem #flower #bud
The user must drag and drop the correct option to the correct place on the image to get points. i.e Drag the #leaf option onto the leaf of the plant.
Now my problem is the image, the separation of these points, I can't figure out how to do it.
Query in short: How do I access separate points/sections on a single image in html/js for above purpose?
Query (longer version)
I did a little search and realised I can slice the image and recreate it using multiple images, I tried this, it sort of works but it has a a lot of drawbacks:
1)More images mean more space, combined size of the split images was about 1.5x the original image(this is just splitting it into 4 images)
2)For a complex picture, the number of images to slice into is large and hard to manage in css(n00b==me) as they don't just need to be split into a simple X*Y grid but a much more complex split depending on the object in the image.(realised when I was trying to do a simple cell structure img)
3)More images also means more http requests(in case the app is WebView based) which will increase loading time.
It just seemed liked too much of a hassle, there must be a better way.
Then I saw css sprites , I dont need to combine my images like sprites are intended for, rather the reverse. Just access parts of my pre-existing image, as separate objects.I haven't tried this(working on it) and and I haven't seen this being done either, or maybe its being done and I'm not seeing.
Please help guys, my problem is quite simple(I think) , I think I'm just not getting the correct google search terms.
If anybody has any ideas,links, resources and also any clarifications as I may not have put up my problem as clearly as I'd like to, please do reply.
regards,
Rahul Agarwal
You could try to place transparent divs over the main image using absolute position and fixed dimensions. Those divs will be assosiated to the possible options, and when a user drops an option over some specific div, you'll know what points to give.
Little demo using two divs and an animated scaling to show that the positioned divs will scale according to their parent:
http://jsfiddle.net/VK3A8/
fiddel with image:
http://jsfiddle.net/8qLFc/4/

Design choice for top_nav_bar in web application(HTML)

Pretty simple question.
Its just some advice based on personal opinion and best practice.
It's difficult to explain so I'll draw the best image I can.
Try to imagine that I have any old website and at the very top I have a navigation bar which is broken into 3 rows.
Top is application: Settings, Profile, Login/Out
Second is notification: Error, new message
Third is part navigation part functional.
So we have 3 rows supporting different functionality and obviously different color schemes. Each on is no more than about 5% of the total pages height.
I supposed the question I'm asking is whats the best way to do this.
First guess was to use tables to format the data and space them out:
This worked, but It looks sloppy.
{
border-collapse: collapse;
border-spacing: 0;
}
seems to fill in any gaps in the table but it doesn't look right
Second guess was to use frame sets:
Shot myself a dirty look for even thinking of it
Third guess was to keep everything css and Html
Which seems like the most sensible one next to tables but keeping content organized with the multiple buttons and such sounds like it could be trouble.
Lastly
was use a JQuery or javascript UI library. This presents It's own set of problems but could be the prettiest if done right.
So if it was you, how would you go about doing this simple task and why?
picture of view as requested. Part in question is top nav
http://s1180.photobucket.com/albums/x406/0vertone/?action=view&current=globalview.jpg
Don't use tables for this purpose.
Only use tables for tabular data (which this isn't).
Just use divs for the containers and lis for the menus.
EDIT
This is somewhat like I would do:
http://jsfiddle.net/uf2zU/1/
This uses elements what they are meant for.
And can be easily controlled using CSS.
EDIT 2
http://jsfiddle.net/uf2zU/4/
I would go about this using sets of HTML uls and CSS, because that's the most forward thinking, plus it uses HTML the way it should be. However, if you want to use tables, try border: none; and border-collapse: collapse;
I would go with the third guess for the presentation part, because that's the most flexible part, at least for me. If you split up all the sections correctly, then the task of managing the content will become quite easy, because you will be able to target the section and style anything with it.
In addition, I would go with the last option (i.e. vanilla JavaScript and jQuery), for client side functionality, because that's the Swiss Army Knife of DOM manipulation.
A horizontal nav bar just that -- a horizontal entity. Therefore, I wouldn't "stack" elements as rows, rather as columns. It's the difference between a huge header and something that's visually much easier to comprehend. Stretch your elements out, use icons, whatever. If you have the need to be really verbose, go with a giant menu
I personally use JQuery UI Tabs whenever possible because they're a well-established UI pattern, are easy to deploy, and automatically "Ajax Load" my pages. Sure, you get a few "gotchas" but they're nothing for a competent jQuery user to overcome.
In situations where I can't use UI Tabs, I will do a pure CSS bar across the top, "floating" via absolute positioning if that is what the client specs. Layout is no place for Tables (they are for tabular content elements) and you're right that frames have no place, period. This shouldn't be any more difficult than basic page layout, so it's a no-brainer to go this route.
For notification, there are other options that are more obvious and timely. Try the Notification Widget or StackOverflow style notifications All other small, basic info could be contained on your horizontal bar.

Categories