I'm trying to create a list which looks and feels like a typical 'Picker', this means it's a normal list which fades out at the top and bottom, and there's a mask overlay in the middle.
Example
The problem with the normal list is it starts with the first <li>-element on top while it should be in the middle, and scrolling down to the the last element it's at the bottom while it should be in the middle.
To fix this, I implemented some padding. However after scrolling down and back up, the padding isn't applied anymore. I think this has something to do with the maxScrollY in the source code.
Has anyone ever tried something like this, or alternatives?
Here's the code:
var myScroll = new iScroll('hour-list-wrapper', {
snap: "li",
momentum: false,
vScrollbar: false
}
);
http://jsfiddle.net/2kBdv/3
Mobiscroll library would make it easier for you, see the demo here http://demo.mobiscroll.com/select/select
If you want to create your custom solution for this anyway you can look for some inspiration in the source code.
Related
I'm working with a jquery and I have this image that is the main problem. I googled it but came up with nothing. Here is my content for example.
And when the guy(in the picture above) is being click I want it to slide to the left side and will looked like this. Please see image below.
So what I'm thinking is
1. using addClass and removeClass using jquery or
2. just use jquery .slide or toggle function?
If there's a solution as such how could it be done? Since I only know is using addClass tho. And also what I'm planning is when the image exceeds 800px then the girl(in the image) will be send to back of the guy image.
What you are trying to do is create a mask around the guy. The scope of this question is beyond masking. Most methods of masking don't have large browser support at this moment so posting more on this would be disingenuous. But worth googling otherwise you can use the transform property to move the picture to the left. But you won't get the results you are looking for..
But there is the option of masking the picture in Photoshop and saving it as a PNG. And then utilizing the translate CSS method to move the image to left. This is your best option. But the details of either of these methods are out of scope for this question.
Cut this guy from image and put in another div at needed position. Put blue box between those two images and use slide function. You can cut the guy from his head i think.
Basically you need to have an html structure like this:
<div id='container'>
<div id='couple'></div>
<div id='mask'></div>
</div>
Initially in your css:
#mask {
display: none;
}
And, of course, you have to align horizzontally this two div.
Your jquery will have a behavior like this:
$('#couple').on('click', slide);
var slide = function() {
$target = $('#container');
$mask = $('#mask');
$mask.fadeIn();
$target.animate({
left: "+=50"
}, 500, function() {
/* callback on end*/
});
}
For complete documentation of animate check api jquery.
So I've finally cracked SVG animations (totally through cheating) and like most sites that use them if they're halfway down the page they begin automatically and you miss it, so how is it possible to trigger the animation on scroll to that div container?
Any help would be great,
Thanks!
You can use
beginElement() function to starts animations manually.
for this to work, you have to set the begin attribute of animate element to indefinite
a simple example would be something like
window.onscroll = function(){
var anime= document.getElementsByTagName('animate')[0];
// check for the amount of scroll
anime.beginElement();
}
You could also make use of beginElementAt()
read more about svg Animation Timing Control
side note: Can't be more accurate since you haven't shared much info or code samples, and not sure what you meant by 'cheating'
I'm creating a list with handles for sorting. I don't like the aesthetics of having 20 handles visible, so I'm trying to make the handles appear only when the mouse hovers over a list item.
This was my first attempt:
jsFiddle #1
As you can see, hovering over items in the list creates a rather jarring movement and misalignment of list items. To fix this, I've created a blank 16px image that I use to replace the handle when it's not visible. It creates a much nicer user experience than hovering, as you can see here:
jsFiddle #2
$(this).prepend("<img src=http://i.imgur.com/tzGrVLc.png class=\"blank-sprite\" / width=16 height=16 border=0>");
The problem is that during sorting the 16px image often disappears, leaving things out of alignment. (I'd post an image but I don't have the reputation.) It doesn't always happen, but seems to happen more frequently when I'm sorting very quickly.
I'd love to know why this happens and how to fix it. Thanks!
You should set position css property of icon element to absolute. This is to give you the idea:
SEE DEMO
var $icon = $("<span class=\"ui-icon ui-icon-grip-dotted-vertical\" style=\"display:inline-block\" id=\"handle\" /></span>").css({
position:'absolute',
top:$(this).offset().top+5,
left:$(this).offset().left-10
});
$(this).prepend($icon);
Problem in brief
I have got a piece of working two dimensional scrolling code. Scrolling as such is working fine. Scrolling can be done in any direction (not like restricted to only horizontal or only vertical at a ti,e) but there are two problems -
Scrolling beyond the visible area towards top and left, does not bounce back the scrollable area.
Scrolling to right and bottom bounces back.
Problem demo - http://jsfiddle.net/sandeepan_nits/pAhjU/6/
Note - Test in webkit browsers only (Google chrome and Safari).
Solution I am looking for
Either, point out what is wrong in my code.
Or share any properly implemented working demo of both ways scroll (horizontal + vertical) using the same version of iscroll, so that I can follow the same. I am using - version 3.7.1, preferable, or using iscroll version 4, fine as well.
Or any pointers, of course, would be appreciated.
Problem Description
Please check working code here - http://jsfiddle.net/sandeepan_nits/pAhjU/6/
Note -
Test in webkit browsers only (Google chrome and Safari).
I have knowingly put everything inside the HTML section in the jsfiddle, because if I separate things completely, the scrolling does not work, and I am not sure where exactly it stops working. Thanks if you can point out.
Code
Here is the HTML -
<div class="header">
<div class='left_link'></div>Demo</div>
<div id="main_content" class="main_content">
<b><div id=scroller1><br/>
<div class='center_data'>Scrollable area</div>
<div class='center_data'>hello world!</div>
<br/>
</div></b>
</div>
Note - I know there is invalid html there - <div id=scroller1> is inside <b></b> and I am not sure why if I remove the <b></b> tags, horizontal scrolling does not work anymore - check here.
Here is the js -
var myScroll;
var a = 0;
function loaded() {
//setHeight(); // Set the wrapper height. Not strictly needed, see setHeight() function below.
// Please note that the following is the only line needed by iScroll to work. Everything else here is to make this demo fancier.
myScroll = new iScroll('scroller1', {desktopCompatibility:true});
//myScroll2 = new iScroll('scroller2', {desktopCompatibility:true});
}
// Prevent the whole screen to scroll when dragging elements outside of the scroller (ie:header/footer).
// If you want to use iScroll in a portion of the screen and still be able to use the native scrolling, do *not* preventDefault on touchmove.
document.addEventListener('touchmove', function (e) { e.preventDefault(); }, false);
// Load iScroll when DOM content is ready.
document.addEventListener('DOMContentLoaded', loaded, false);
I guess the reason is that the scrollable div is by default rendered at the bottom-right corner of the scrollable area. But I am not sure about the proper way to configure those things - how to set where to render the scrollable div inside the scollable area. So far I did not find any working demo of both ways scrolling - horizontal + vertical scrolling.
I checked out the documentation of iscroll and many working demos, but did not find any demo where scrolling can be done both ways - horizontally as well as vertically. I checked the "Accepted options are:" section under "Syntax" section in http://cubiq.org/iscroll but none of those params seem to be what I am exactly looking for.
Other things
Also, one more thing, I am not able to view the area covered by dom elements in chrome browser, while I inspect the given scroll demo. By viewing the area I mean moving the mouse over the dom inspector panel highlights the dom in the browser view. When does it not appear? I checked with validated HTML as in http://jsfiddle.net/sandeepan_nits/pAhjU/12/.
Somebody please create a tag iscroll or iscroll3 so that I can retag my question.
Update
I just want to have normal two dimensional scrolling with the scroll area being properly inside the visible screen and there should be bounce back on taking outside the screen. Right now there is no bounce back (in my jsfiddle) on scrolling towards top and left, outside screen. Bounce back happens on scrolling to right and bottom. I just want the scrolling area to be well placed inside the screen. I guess bounce back will automatically get fixed then.
I think the last version (4.1.8) on the github repo will fix your problem ;) I'm using it on some projects and it is now optimized for desktop browser ;)
Edit
From the documentation :
hScroll, used to disable the horizontal scrolling no matter what. By default you can pan both horizontally and vertically, by setting this parameter to false you may prevent horizontal scroll even if contents exceed the wrapper.
vScroll, same as above for vertical scroll.
By default, when creating a new iScroll('idOfElement') the scroll is vertical and horizontal. It can be disabled with these parameters. Dual Scroll is totally possible as this video shows it.
So, to force dual Scroll :
var myScroller = new iScroll('idOfElement', {vScroll:true, hScroll:true});
This is not a complete solution, but this might help you.
First of all, The HTML code was not properly nested, and so you were needed to put the <div> inside the <b>. I fixed up the HTML a bit and its working without the <b>
http://jsfiddle.net/Aexhz/
And with properly nested HTML and correct settings, This worked even after dividing the HTML/JS/CSS
For me, it does show some Horizontal as well as Vertical Scrolling, but i don't know if that's how you want it to be. i Edited the Class initialization line as well
myScroll = new iScroll('scroller1', {desktopCompatibility:true});
TO
myScroll = new iScroll('scroller1', {
snap: true,
momentum: false,
hScrollbar: false,
vScrollbar: false,
desktopCompatibility: true
});
This doesn't affects much but i still put that.
I will continue looking into this and update my answer if i find anything new.
I know you want to fix this using iscorll but wanted to share this with you, i had great results using it: http://jscrollpane.kelvinluck.com/#usage
It is highly customizable with css, a demo here with vertical and horizontal scroll: http://jscrollpane.kelvinluck.com/basic.html
So I have this page here:
http://www.eminentmedia.com/development/powercity/
As you can see when you mouse over the images the div slides up and down to show more information. Unfortunately I have 2 problems that i can't figure out and I've searched but haven't found quite the right answer through google and was hoping someone could point me in the direction of a tutorial.
The first problem is that when you mouse over an image it changes to color (loads a new image), but there's a short delay when the image is loading for the first time so the user sees white. Do I have to preload the images or something in order to fix that?
My second problem is that when you move your mouse over the 'additional content area' it goes crazy and starts going up and down a bunch of times. I just don't have any idea what would cause this but i hope one of you will!
All my code is directly in the source of that page if you would like to view the source.
Thanks in advance for your help!
Yes, you have to preload the images. Thankfully, this is simple:
var images_to_preload = ['myimage.jpg', 'myimage2.jpg', ...];
$.each(images_to_preload, function(i) {
$('<img/>').attr({src: images_to_preload[i]});
});
The other thing you have to understand is that when you use jQuery you have to truly embrace it or you will end up doing things the wrong way. For example, as soon as you find yourself repeating the same piece of code in different places, you are probably doing something wrong. Right now you have this all over the place:
<div id="service" onmouseover="javascript:mouseEnter(this.id);" onmouseout="javascript:mouseLeave(this.id);">
Get that out of your head. Now. Forever. Always. Inline javascript events are not proper, especially when you have a library like jQuery at your disposal. The proper way to do what you want is this:
$(function() {
$('div.box').hover(function() {
$(this).addClass('active');
$(this).find('div.slideup').slideDown('slow');
}, function() {
$(this).removeClass('active');
$(this).find('div.slideup').slideUp('slow');
});
});
(You have to give all the #industrial, #sustainable, etc elements a class of 'box' for the above to work)
These changes will also fix your sliding problem.
I can see your images (the ones that are changing) are set in the background of a div. Here is a jquery script that preloads every image found in a css file. I have had the same problem in the past and this script solves it. It is also very easy to use:
http://www.filamentgroup.com/lab/update_automatically_preload_images_from_css_with_jquery/
I will take a look at your other problem...
1) You should be using the jquery events to drive your mouseovers. Give each div a class to indicate that its a category container and use the hover function to produce the mouseover/mouseout action you're after.
html
<div id="industrial" class="category"></div>
Javascript
$(".category").hover(
function () {
$(this).find('.container').show();
},
function () {
$(this).find('.container').hide();
}
);
I simplified the code to just do show and hide, you'll need to use your additional code to slide up and slide down.
2) Yes, you need to preload your images. Another option would be "sprite" the images. This would involve combining both the black and white and colour versions of each image into a single image. You then set it as the div's background image and simply use CSS to adjust the background-position offset. Essentially, sliding instantly from the black and white to colour images as you rollover. This technique guarentees that both images are fully loaded.