Develop Reference

auto resize the images within the edit area

I've tested "all" the answers i found in the internet on resizing the pictures within the blogger edit post. Some of them just resize the image dimension but not the actual resolution of the picture, while some of them are actually on that purpose I was looking for using javascript but...
It seems not to work.
so I was thinking maybe because the blogger updated something that it might not work anymore?
for example this solution > JavaScript for resizing photos in Blogger posts
and its posted in 2012.
so maybe I miss something out?
Please help me, thank you.

This code will replace your image src size /s72-c/ with newSize.
<script>
//<![CDATA[
var newSize = 500; // this is the new image size, you can change this
$("your img selector").each(function() {
$(this).attr("src", $(this).attr("src").replace("/s72-c/", "/s"+newSize+"/"));
});
//]]>
</script>

Creating a sliding image gallery that does not glitch on image change

I have created a sliding image gallery and when the button is pushed it slides the picture across and updates the image attribute for the relevant sections.
However this works perfectly like 50% of the time. The other times there is a second glitch and the images then go in place as expected.
I have attached the javascript methods for the animate method and the array change method. I have looked elsewhere and cannot see anyone else with a similar issue or where I am going wrong, especially when it doesn't happen often.
imageGallery.leftSelect.onclick = function () {
window.setTimeout(imageGallery.rightClick, 250);
imageGallery.animateImages('.image1', '.imageRight');
imageGallery.animateImages('.imageRight', '.imageNoneRight');
imageGallery.animateImages('.imageLeft', '.image1');
imageGallery.animateImages('.imageNoneLeft', '.imageLeft');
};
animateImages: function (classFrom, classTo) {
var classMoving = $(classFrom);
var classGoingTo = $(classTo);
classMoving.animate({
top: classGoingTo.css('top'),
left: classGoingTo.css('left'),
width: classGoingTo.css('width'),
opacity: classGoingTo.css('opacity'),
}, 258, function () {
console.log('Animated');
classMoving.css({"width":'', "opacity":'', "top":'', "left":'', });
});
},
rightClick: function () {
imageGallery.imagesDisplay.push(imageGallery.imagesDisplay.shift());
imageGallery.imageNoneLeft.setAttribute('src', imageGallery.imagesDisplay[2]);
imageGallery.imageLeft.setAttribute('src', imageGallery.imagesDisplay[1]);
imageGallery.imageMain.setAttribute('src', imageGallery.imagesDisplay[0]);
imageGallery.imageRight.setAttribute('src', imageGallery.imagesDisplay[10]);
imageGallery.imageNoneRight.setAttribute('src', imageGallery.imagesDisplay[9]);
},
Can someone assist, I really need this to work?
If there is anything not clear or you need more code let me know.
Thanks,

First things first, the culprit was the setAttribute of all images i.e. whatever you were doing inside the rightClick and leftClick functions were the reasons why you were seeing a glitch. Changing src of an img tag produces the glitch.
But then we cannot simply remove it because your approach relies heavily on this swapping of images.
I had to breakdown and really understand your approach first. The way it worked was that you would animate, for example, image1 (the centered one) to move to the position of imageLeft upon click on the rightCarousel button. On that same click, you had a setTimeout of almost the duration of the animation to call rightClick function. This rightClick function then swaps the images so that image1 can always remain at the center and only images can come and go after animation. This was the problem.
What I had to change was that all image tags i.e. imageNoneLeft, imageLeft, image1, imageRight & imageNoneRight would change each others classes such that their position remains changed after animations.
Also, I had to add another animateImages line inside your leftSelect and rightSelect callbacks to animate the furthest images i.e. imageNoneLeft & imageNoneRight to animate to each other's positions with respect to the click of the buttons.
Take a look at this jsFiddle. It will help you understand a lot better. And let me know if you have any questions.
JavaScript:
var imageGallery={
prefix:'https://dl.dropboxusercontent.com/u/45891870/Experiments/StackOverflow/1.5/',
imagesDisplay:['JS.jpg','PIXI.jpg','GSAP.jpg','JS.jpg','PIXI.jpg','GSAP.jpg','JS.jpg','PIXI.jpg','GSAP.jpg','JS.jpg','PIXI.jpg'],
rightSelect:document.querySelector('.rightCarousel'),
leftSelect:document.querySelector('.leftCarousel'),
imageMain:document.querySelector('.image1'),
imageLeft:document.querySelector('.imageLeft'),
imageRight:document.querySelector('.imageRight'),
imageNoneLeft:document.querySelector('.imageNoneLeft'),
imageNoneRight:document.querySelector('.imageNoneRight'),
init:function(){
imageGallery.imagesDisplay.push(imageGallery.imagesDisplay.shift());
imageGallery.imageNoneLeft.setAttribute('src',imageGallery.prefix+imageGallery.imagesDisplay[2]);
imageGallery.imageLeft.setAttribute('src',imageGallery.prefix+imageGallery.imagesDisplay[1]);
imageGallery.imageMain.setAttribute('src',imageGallery.prefix+imageGallery.imagesDisplay[0]);
imageGallery.imageRight.setAttribute('src',imageGallery.prefix+imageGallery.imagesDisplay[10]);
imageGallery.imageNoneRight.setAttribute('src',imageGallery.prefix+imageGallery.imagesDisplay[9]);
},
animateImages:function(classFrom,classTo){
var classMoving=$(classFrom);
var classGoingTo=$(classTo);
classMoving.animate({
top:classGoingTo.css('top'),
left:classGoingTo.css('left'),
width:classGoingTo.css('width'),
opacity:classGoingTo.css('opacity')
},258,function(){
$(this).removeClass(classFrom.substr(1));
$(this).addClass(classTo.substr(1));
$(this).removeAttr('style');
});
}
};
imageGallery.init();
imageGallery.leftSelect.onclick=function(){
imageGallery.animateImages('.imageNoneRight','.imageNoneLeft');
imageGallery.animateImages('.imageRight','.imageNoneRight');
imageGallery.animateImages('.image1','.imageRight');
imageGallery.animateImages('.imageLeft','.image1');
imageGallery.animateImages('.imageNoneLeft','.imageLeft');
};
imageGallery.rightSelect.onclick=function(){
imageGallery.animateImages('.imageNoneLeft','.imageNoneRight');
imageGallery.animateImages('.imageLeft','.imageNoneLeft');
imageGallery.animateImages('.image1','.imageLeft');
imageGallery.animateImages('.imageRight','.image1');
imageGallery.animateImages('.imageNoneRight','.imageRight');
};

Find height of class and apply to another class

I've been looking around the web for an answer for a couple of hours and cannot find anything so I'm hoping someone can help me.
I want to take the height of a wrapper div who's class is movie and apply it to an inner div who's class is movie-center. How can I do this using JS or jQuery?
I am a newbie when it comes to JS, so I would really appreciate if you could lay everything out for me (including any HTML needed).
Thank you!
EDIT 1: Maybe if I am explaining what I am doing people will have a better understanding. I am making a responsive WordPress theme. As the width of the browser is smaller, the movie widths are smaller. I want the overlay title and graphic to stay in the center. I tried doing this with CSS and it cannot be done fully unless I know the exact height (which I won't because of resizing).
EDIT 2: here is the browser's rendered html code:
<article id="movie-97" class="post-97 movie type-movie status-publish hentry"><a href="http://localhost:8888/movies/hard-truth-levity-hope">
<div class="movie-center">
<div class="movie-overlay">
<div class="movie-play"></div>
<h2 class="movie-title">Hard Truth, Levity and Hope</h2>
</div> <!-- end .movie-overlay -->
</div> <!-- end .movie-center -->
<div class="movie-thumb"><img width="480" height="270" src="http://localhost:8888/wp-content/uploads/2014/03/truth-levity-hope.jpg" class="attachment-movie-thumb wp-post-image" alt="Hard Truth, Levity and Hope" /></div>
EDIT 3: Here's a Pastebin for my website. Note: it has been stripped down to only show the essential parts of the site.

What you've done is the correct way. Make sure you've loaded jQuery properly and try to wrap your code inside DOM ready handler $(document).ready(function() {...}); or shorter form $(function() {...});
$(function() {
$('.movie').each(function() {
var h = $(this).height();
$(this).find('.movie-center').height(h);
});
});
Edit: Since you're using Wordpress, there's probably a conflict happen here, try to use:
jQuery(document).ready(function($) {
$('window').resize(function() {
$('.movie').each(function() {
var h = $(this).height();
$(this).find('.movie-center').height(h);
});
}).resize();
});

Please try this :
/* Get height of .movie thumb preview */
jQuery(document).ready(function($) {
$('.movie').each(function() {
var h = $(this).height();
console.log(h);
$(this).find('.movie-center').first().css('height',h);
console.log($(this).find('.movie-center').first().height())
});
});

Connor,
This will get you what you're looking for:
jQuery(document).ready(function($) {
$('.movie').each(function() {
var h = $(this).height();
$(this).find('.movie-center').height(h);
});
});
A quick explanation. You'll notice that jQuery's .height() function is called twice. First, without any params and then with h passed in.
Pull up your JS console (cmd+opt+j if you're using Chrome) to see how this actually works.
The question at the top of this page has an id of #question-header, so if you enter this in the console $('#question-header').height() you'll see that it returns 36. That's because that element is 36 pixels tall.
So, calling .height without any params will return the height of the selected element. But, we can set the height by passing in a number. Try this by pasting this in to the JS console:
$('#question-header').height(1000)
The header is now 1000px tall!
The third line of the code basically says, "Hey, within this particular instance of the .movie article, find the .movie-center element and set the height.
So, there you go. Some working code and hopefully an explanation as to exactly why/how to use it in the future.

Google plus popup box when hovering over thumbnail?

I'm trying to figure out how to create a popup box with user profile details on mouseover like you see on google plus. When hovering over a thumbnail a popup appears with the option to add that person into your circle.
It seems kinda simple to do with jQuery but I've been unable to find a simple solution. Most of the plugins I've come across are too complicated and require a lot of tweaking. Any help on how to do this would be greatly appreciated!
Hover Effect Screenshot

You'll want to try something like this. It doesn't handle all the cases you'll need (you need the hover to stay active when user enters the popup); but you can work some of those out I hope.
Here's the basic jQuery code:
jQuery(function($) {
function getMyContent($img) {
// do your fancy ajax calls or append your control links and such here
return $('<p />').append($img.clone()).append('Here is my fancy hoverbox');
}
$('#content img').mouseenter(function(e) {
var $this = $(this), off = $this.offset();
var pos = {
// or you could position it relative to the mouse
top: (e.clientY + 2) + 'px',
left: (e.clientX + 2) + 'px'
};
$('#hoverbox').css(pos)
.append(getMyContent($this))
.fadeTo('slow', .95);
}).mouseleave(function(e) {
$('#hoverbox').fadeOut('slow', function() { $(this).html(''); });
});
});
UPDATE: Here is one that handles the hover events on the popup for you (yeah, I'm still messing around with it; why?)

The simplest solution would be to add a hidden div to the element that wraps around your profile photo.
<div class="profile-popup" style="display: none;">
<!-- Popup info goes here -->
</div>
Go ahead and style the div with CSS however you want it to appear, say with absolute positioning at the bottom right corner for the "pop out" effect. Then register a mouseOver event in jQuery that shows the div:
$().ready( function() {
$('.profile-pic-wrapper').mouseenter( function() {
$('.profile-popup', this).show( //pass in some animation options here );
});
$('.profile-pic-wrapper').mouseleave( function() {
$('.profile-popup', this).hide( //pass in some animation options here );
});
});
This is just a basic idea (and that code may need to be tweaked a bit). You'll have to add some additional logic to keep the popup open when the user mouses into it, but this should get you started.
The more elegant solution would be to pass JSON data to your jQuery script and have it generate the popup div dynamically on hover, but that is a bit more advanced.

enlarge image and move it with the pointer on mouse over

Sorry if this might seem trivial for me to ask but..
I have some images and I need them to enlarge when I hover my mouse over them. But.. I want for the enlarged image to stick next to the pointer as I move it across the image. I don't know what to call it. I'm pretty sure it's only done with javascript, just css won't work here.
Something like this http://www.dynamicdrive.com/style/csslibrary/item/css-popup-image-viewer/ , but you know, it has to move with the pointer in motion.
What's the most effective way to do this?

The previous answers may be exactly what you're looking for, and you may already have this solved. But I note that you didn't mention jquery anywhere in your post and all of those answers dealt with that. So for a pure JS solution...
I'll assume from the way the question was phrased that you already know how to pop the image up? This can be done by coding an absolutely positioned hidden img tag in the html or generated on the fly with JS. The former may be easier if you are a JS novice. In my examples I'll assume you did something similar to the following:
<img src="" id="bigImg" style="position:absolute; display:none; visibility:hidden;">
Then you need an onMouseOver function for your thumbnail. This function must do three things:
1) Load the actual image file into the hidden image
//I'll leave it up to you to get the right image in there.
document.getElementById('bigImg').src = xxxxxxxx;
2) Position the hidden image
//See below for what to put in place of the xxxx's here.
document.getElementById('bigImg').style.top = xxxxxxxx;
document.getElementById('bigImg').style.left = xxxxxxxx;
3) Make the hidden image appear
document.getElementById('bigImg').style.display = 'block';
document.getElementById('bigImg').style.visibility = 'visible';
Then you'll need to capture the onMouseMove event and update the now un-hidden image's position accordingly using the same code you would have used in (2) above to position the image. This would be something like the following:
//Get the mouse position on IE and standards compliant browsers.
if (!e) var e = window.event;
if (e.pageX || e.pageY) {
var curCursorX = e.pageX;
var curCursorY = e.pageY;
} else {
var curCursorX = e.clientX + document.body.scrollLeft;
var curCursorY = e.clientY + document.body.scrollTop;
}
document.getElementById('bigImg').style.top = curCursorY + 1;
document.getElementById('bigImg').style.left = curCursorX + 1;
And that should just about do it. Just add an onMouseOut event to hide the bigImg image again. You can change the "+1" in the last two lines to whatever you like to place the image correctly in relation to the cursor.
Note that all of the code above was for demonstration purposes only; I haven't tested any of it, but it should get you on the right track. You may want to expand upon this idea further by preLoading the larger images. You could also forgoe capturing mousemove events by using setTimeout to update the position every 20 ms or so, though I think that approach is more complicated and less desirable. I only mention it because some developers (including me when I started) have an aversion to JS event handling.
I did something similar to this with a custom ColdFusion tag I wrote that would generate a floating div users could click and drag around the screen. Same principle. If you need me to I can dig that out to answer any additional questions in more depth.
Good luck!

Liece's solution is close, but won't achieve the desired effect of the large image following the cursor.
Here's a solution in jQuery:
$(document).ready(function() {
$("img.small").hover (function () {
$("img.large").show();
}, function () {
$("img.large").hide();
});
$("img.small").mousemove(function(e) {
$("img.large").css("top",e.pageY + 5);
$("img.large").css("left",e.pageX + 5);
});
});
The HTML is:
<img class="small" src="fu.jpg">
<img class="large" src="bar.jpg">
CSS:
img { position: absolute; }

Try this links [jquery with auto positioning]
1.Simple
http://jquery.bassistance.de/tooltip/demo/
2.Good with forum
http://flowplayer.org/tools/tooltip/index.html

if I understood you correctly you want to position your big image relatively to the cursor. One solution in jquery (i'm not 100% sure of the code here but the logic is there):
$('.thumb').hover(function(e){
var relativeX = e.pageX - 100;
var relativeY = e.pageY - 100;
$(.image).css("top", relativeY);
$(.image).css("left", relativeX);
$(.image).show();
}, function(){
$(.image).hide();
})

Jquery is the easiest route. position absolute is key.

^ In addition to the above, here is a working JS Fiddle. Visit: jsfiddle.net/hdwZ8/1/
It has been roughly edited so it isnt using just overall IMG css tags, easy for anyone to use with this now.
I am using this script instead of a Lightbox in my Wordpress client site, a quick zoomed in image with mouse over is much nicer IMO. It is very easy to make efficient galleries especially with AdvancedCustomFields plug-in & in the WP PHP repeater loops!