The bunch of code does seem to work, only thing is that the transition is not very smooth. Any Idea how to tweak up the code to make the effect more smooth? and also, when the image enlarges, all the content below and beside the image seems to be pushed away to make room for the enlargement, any idea how I can stop this and just make the image overlap the content around it on enlargement? Also, instead of inserting that code for each image every time I upload a new image and want that effect, how do I make the javascript code automatically apply to the new image instead of manually applying the javascript to it each time? Finally, how do I use this on videos/widgets instead of just images? (I’m using Dreamweaver CS5).
$("img").each(function() {
$.data(this, 'size', { width: $(this).width(), height: $(this).height() });
}).hover(function() {
$(this).stop().animate({ height: $.data(this,'size').height*1.2,
width: $.data(this,'size').width*1.2 });
}, function() {
$(this).stop().animate({ height: $.data(this,'size').height,
width: $.data(this,'size').width });
});
If you want the image to overlap any surrounding elements upon resize you will have to play with the CSS to position the element either relative, absolute, or fixed, then set the z-index of the image to a value higher than the surrounding elements.
Sounds maybe like you should look into a jQuery Lightbox plugin. As for the specific issue with the enlarged image pushing your content around, it needs to be removed from the document flow (using position attribute)... but that's just the tip of an iceberg. There's a lot of moving parts to the task you're trying to achieve, that's why using an existing javascript plugin would be best - IMO, of course.
You might want to check out http://www.no-margin-for-errors.com/projects/prettyphoto-jquery-lightbox-clone/ and also http://line25.com/articles/rounding-up-the-top-10-jquery-lightbox-scripts .
Related
I have multiple background images that are behind a block of text each. I would like to fade each background image and have the text move up when one background image fades into another.
For example
BG1 (background image 1) has Tegxt1 on top of it. As BG1 fades into BG2, Text1 moves up and is replaced by Text2.
How can I do this with simple jquery and javascript and CSS?
Here's what I tried
this._currentTimeout = setTimeout(function() {
this.slides$.eq(newSlideIndex).css('z-index', 3).fadeTo(ANIMATION_FADE_DURATION, 1, function() {
this.slides$.eq(this.currentSlideIndex).css('z-index', 1).css('opacity', 0);
this.slides$.eq(newSlideIndex).css('z-index', 2);
this.currentSlideIndex = newSlideIndex;
this._setTransitionTimerForNewSlide(this._getNextSlideIndex(), 5000);
}.bind(this));
}.bind(this), durationUntilTransition);
You did not provide enough code to generate a complete working example (How is your html structured? Where is your jQuery located on the page? What does your existing CSS look like?), so unfortunately no one on StackOverflow and give you a perfect answer. The best we can do is create a small demo of what you could do to accomplish this affect. It's then up to you to learn from the example and apply the concept to your own code.
If I was going to try to accomplish this, here's the approach I would take:
Stack images on top of each other with position: absolute;
The first image group should have the highest z-index, so it's on top. CSS can do this!
The second image group should have the second-highest z-index, so that it shows behind the first image during the fade. CSS again!
all other image_groups should have z-index below the second image. Yay for CSS!
Animate the image and text seperately
The image just needs to fade out
The text needs to fade up and out
After the first (top) image group is completely faded, move it to the bottom of the list
Remove the inline style="..." that jQuery's .animate() applies to the image group. Once we do this, the image group will adhere to the css rules we set up in step one.
JS Fiddle Demo
The first step will be done manually by you when you're writing HTML and CSS, but then your jQuery can handle steps 2-4. Then just repeat as much as you'd like. Ask questions if you need to, but try hard to apply this to your own code. Good luck!!
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.
I'm in the process of designing this site http://www.parisgaa.org/parisgaels and have a problem.
The image slider on the homepage messes up sometimes. Most of the time it works and looks fine, but other times its positioning seems to get messed up and it appears underneath the content that should be below it (i.e. with that content overlapping the image). You should be able to replicate this in Chrome - just refresh a couple of times.
I'd appreciate any help at all.
You are going to have to edit a line in the slider file
js/slider.js
.wrap('<div class="bx-window" style="width:'+childrenMaxWidth+'px; height:'+wrapperHeight+'px; position:relative; overflow:hidden;"></div>')
.css({
height: '999999px',
position: 'relative',
top: '-'+(origTop)+'px'
});
Within his you will need to define a height that works for your images like
.wrap('<div class="bx-window" style="width:'+childrenMaxWidth+'px; height:400px; position:relative; overflow:hidden;"></div>')
.css({
height: '999999px',
position: 'relative',
top: '-'+(origTop)+'px'
});
The problem isn't your implementation rather the script you are using. You could try using a different script but hopefully this adjustment will do the trick for you!
It looks like it might be a problem with whatever jQuery plugin you're using for the image slider. The height of the .bx-window element isn't being evaluated correctly for some reason (for me it's in the ballpark of 20-30px instead of 420px). I would try out a different slider (there's ton's of jQuery image sliders out there, just google it), but if that's not an option, it would probably be fairly trivial to fix it yourself in their code. Good luck!
Try making the image slider position relative:
style = "position:relative;"
I realize there's already been several questions like this, but I think my case is a little different.
I have an div that I am absolutely positioning and floating on top of the page, and I'm setting an overlay behind it to grey out the rest of the page. I have it working okay until you scroll up and down the page.
The problem is, when the div appears, it is still populating with ajax data. So the height and width of the bg overlay has already been set, but once all the data loads into the floating div, it sometimes pushing the page down so the height increases. So, I can't calculate the height and width of the window or document because the floating div might not be fully loaded yet, and once it does, it pushes the screen down further, causing the bg overlay to not cover the whole page.
So for example, in the code it's going something like:
loadBoxContent = function(){
..DO AJAX HERE..
..PUT CONTENT INTO FLOATING DIV..
$('#floatDiv').show()
$('#darkOverlay').height($(window).height());
}
I verified this by adding an alert, so that by the time I've clicked the alert, the bg overlay was able to calculate the true page size, and it looks fine.
Sorry, if this sounds confusing but hopefully you get what I'm trying to achieve. I'm assuming this isn't too difficult, but I haven't been able to figure it out.
Any help would be appreciated, I'm using jquery.
Thanks
Overlay ;)
** update, setting position of all corners to 0 instead of using width/height 100% **
$("<div/>")
.css({
position:"fixed", // ze trick
background:"#000",
opacity:.5,
top:0,
bottom: 0,
left:0,
right: 0,
zIndex: 2999 // everything you want on top, gets higher z-index
})
.appendTo("body");
Or put the above css settings in a css stylesheet (opacity needs cross browser hacks).
$("#dark-overlay").show();
Here is the solution :
JQuery Show Loading Plugin
Don't try to invent the wheel !!!
Here is a demo :
Loading Demo
Now you just need to create a main container div for your page and just ask this simple plugin to do it for you.
Maybe you want to read the plugin source and find how it works...
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.