I am trying to make a clipping window but it is not happening, here is the code sample:
<html>
<head>
<style>
#clippingWindow
{
height:178px;
width:278px;
overflow: hidden;
}
#bgImg
{
left:35px;
border:54px;
}
</style>
<script language="javascript">
function getImgSize()
{
var ds = document.getElementsByName('a');
var wid = ds[0].width;
var pos = (wid-278)/2;
alert(pos);
alert(ds[0].id);
if(ds[0].width>278)
{
dt.style.left=500; //this is not working
}
}
</script>
</head>
<body><input type="button" onClick="getImgSize();">
<div id="clippingWindow">
<img name="a" src="sss.bmp" id="bgImg">
</div><br><br><br>
<div id="ad">
<img name="a" src="484.jpeg">
</div>
</body>
</html>
You probably need to set the position property of the element you want to position to something like absolute or relative (e.g. ds.style.position = "relative";). The left property doesn't have any effect on statically positioned elements.
Also, you probably need to use "500px" instead of the number 500.
I see three issues:
dt.style.left=500; should be ds.style.left=500; (but see point #3)
You need to position your #bgImg element. Ex: position:relative;
Most browsers should be OK with your 500 unit in the line ds.style.left=500; however dts.style.left='500px'; would be better.
jsFiddle example
you must set the css property "left" with a value and a measurement such as "500px" (you forgot the px)
Related
I am trying to use a simple animation feature of jquery. In my application, I have two button " Slide Right" and "Slide Left". When we click on these buttons, these move the box to left or right respectively. My move right button is working perfectly but my move right button is working only once. What's wrong with my code? Here's my code:
$(document).ready(function() {
$("#slideRightButton").click(function() {
$("#boxToBeMoved").animate({
left: '+=10%'
});
});
$("#slideLeftButton").click(function() {
$("#boxToBeMoved").animate({
right: '+=10%'
});
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<button id="slideRightButton">Slide Right</button>
<button id="slideLeftButton">Slide Left</button>
<p>By default, all HTML elements have a static position, and cannot be moved. To manipulate the position, remember to first set the CSS position property of the element to relative, fixed, or absolute!</p>
<div id="boxToBeMoved" style="background:#98bf21;height:100px;width:100px;position:absolute;"></div>
The above code is just an extension of the jquery tutorial by W3Schools which can be found here
You are changing the left and right property of the box, It looks like the right property is taking precedence and preventing the left from doing anything.
If you make both use the same property, one adding to it and the other subtracting, it should work.
$("#slideRightButton").click(function(){
$("div").animate({left: '+=10%'});
});
$("#slideLeftButton").click(function(){
$("#boxToBeMoved").animate({left: '-=10%'});
});
Updated to include author's request to not exceed the maximum width.
To accomplish this, I included a wrapper div with a fixed width.
When sliding to the right, it checks if the value will be bigger than parent's width and, if positive, returns.
Same when sliding to the left, but it returns if the value is negative, preventing the box to slide outside the limits of the parent div.
$(document).ready(function() {
const slideVal = 30; // slide value (in pixels)
$("#slideRightButton").click(function() {
var box = $("#boxToBeMoved");
if (parseInt(box.css("left")) + slideVal > parseInt(box.parent().width())) return;
box.animate({
left: '+=' + slideVal
});
});
$("#slideLeftButton").click(function() {
var box = $("#boxToBeMoved");
if (parseInt(box.css("left")) - slideVal < 0) return;
box.animate({
left: '-=' + slideVal
});
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<button id="slideRightButton">Slide Right</button>
<button id="slideLeftButton">Slide Left</button>
<p>By default, all HTML elements have a static position, and cannot be moved. To manipulate the position, remember to first set the CSS position property of the element to relative, fixed, or absolute!</p>
<div id="wrapper" style="width: 200px">
<div id="boxToBeMoved" style="background:#98bf21;height:100px;width:100px;position:absolute;"></div>
</div>
<html>
<head>
<style>
#container {position:relative;left:15%;}
#myImage {width:65%;height:280px;}
#text {padding-top: 50px;}
#textbox {width:65%;height:280px;position:absolute;top:0;left:0;}
</style>
</head>
<body>
<div id="container" onclick="changeImage()" >
<img id="myImage" src="C:\Documents and Settings\svarghe1\My Documents\Downloads\Jaguar_Xj_Saloon_4.jpgj_.jpg" alt="">
<div id="textbox">
<p style="color:white;text-align:center;margin-top:50px;"class="text">Jaguar_Xj_Saloon</p>
<script>
function changeImage() {
if (document.getElelmentById("container").innerHTML="myImage") {
container.appendChild(myImage)
} else {
container.appendChild(textbox)
}
}
</script>
</div>
</div>
</body>
</html>
Here, I am trying to create a script for Sharepoint site page to change an element in div from Image to textbox with Onclick or hover property. There might be a lot of mistakes as this is my first attempt on JS. I have also tried
<script>
function changeImage() {
var image= document.getElementById("myImage");
if (image=true) {
var element = document.getElementById("container");
var UImage = document.createElementById("myImage");
element.appendChild(UImage)
} else {
var element = document.getElementById("container");
var Utextbox = document.createElementById("textbox");
element.appendChild(UImage)
element.appendChild(Utextbox);
}
}
</script>
#container:hover #myImage{ display:none; }
I have tried the code above in CSS, instead of script. It didn't work. At the same time the code,
a:hover #box{ text-decoration: none;color:green;background-color: Turquoise;cursor:pointer }
Works really fine. Why is that? I have given class instead of id. It also didn't work. It works in ordinary HTML file. But can't get to work in Sharepoint site.
So, can you help?
Instead of appending Image and text box from the javascript, you can already write the html codes for both and do the hide/show according to your need. I think it will make things lot easier and neat.
As for the Hover property, you can attach event of hover with jquery.
You can check the following link: http://api.jquery.com/hover/
I have a slider that's in place on my website.
The basic way that it works is depicted in this jsfiddle -
http://jsfiddle.net/6h7q9/15/
I've written code to set the parent's height to the height of the content div. This worked fine, until I introduced some content that did not have a fixed height and whose height might increase while it was being shown on the page. Is there a way, I can dynamically change the height of this parent div whenever content inside it increases or decreases it's height.
HTML -
<div id="slider_container">
<div id="slider">
<div id="slide1">
Has content that might increase the height of the div....
</div>
<div id="slide2">
Has content that might increase the height of the div....
</div>
<div id="slide3">
Has content that might increase the height of the div....
</div>
</div>
</div>
<input type="button" value="Next" id="btnNext">
<input type="button" value="Previous" id="btnPrev">
<input type="button" value="Add text" id="btnAddText">
<div class="footer">
I appear after the largest container, irrespective of which one is present....
</div>
JavaScript -
var currSlider = 1;
$('#btnNext').click(function(){
debugger;
var margin = $('#slider').css('margin-left');
if(parseInt(margin) <= -400) {
return;
}
currSlider++;
// Moving the slider
$('#slider').css('margin-left', parseInt(margin) - 200 + 'px');
// Resetting the height...
$('#slider').height($('#slide' + currSlider).height());
});
$('#btnPrev').click(function(){
debugger;
var margin = $('#slider').css('margin-left');
if(parseInt(margin) >= 0) {
return;
}
currSlider--;
// Moving to the previous slider
$('#slider').css('margin-left', parseInt(margin) + 200 + 'px');
// Resetting the height...
$('#slider').height($('#slide' + currSlider).height());
});
$('#btnAddText').click(function() {
$('#slide' + currSlider).text('Hello World'.repeat(100));
});
String.prototype.repeat = function(times) {
return (new Array(times + 1)).join(this);
};
I hope this "answer" gets you going in the right direction. Since i don't have the time to fully look this up right now, i hope to send you in the right direction. if you do find out how to do this properly, please shoot me a message, since i would really like to know ^_^
http://www.w3.org/TR/DOM-Level-3-Events/#legacy-event-types
An example on how to use: (DOMSubtreeModified didn't work in IE from what i read. Therefor the propertchange event)
$('#slide1').on('DOMSubtreeModified propertychange', function() {
console.log('test',this);
});
Another option is by using the MutationObserver:
http://updates.html5rocks.com/2012/02/Detect-DOM-changes-with-Mutation-Observers
https://dvcs.w3.org/hg/domcore/raw-file/tip/Overview.html#mutation-observers
Updated 6-8-2014 15:00 CET
Since i totally misread the original post, this answer was useless to say the best. But since the problem is actually really easy to solve (or... at least i hope i understand the problem this time), i thought i'd post an answer that worked for the situation: a slider with content of different heights.
What was the problem with the original slider? You moved the content out of the container, which made it hidden. However, the container would still pick up the height of it, since it only had a fixed width. The fixed height on the '#slider' did not prevent the container of picking up the height from the '#slide-*'. Had you set the height for the container... all would be fine :-)
Here's the outline of the hidden slide, moved 'off canvas': http://i.gyazo.com/f2404e85263a7209907fdbc8f9d8e34e.png
I did not fix your fiddle by completing your code. I just rewrote it to provide you with an easier to maintain slider. Here's a fiddle with a working slider where you can add and remove stuff in the slides: http://jsfiddle.net/3JL2x/3/
Just remove the height properties in the .slide1, 2 and 3 and add min-height instead.
Like that :
#slider > div {
min-height:200px;
float:left;
width : 200px;
}
#slide1 {
background-color : red;
}
#slide2 {
background-color: green;
}
#slide3 {
background-color: blue;
}
Live example
http://jsfiddle.net/6h7q9/27/
I am trying to change the alignment of textbox dynamically and it is not working. But if I give through on load of widget that is working fine.
code; HTML
<input type="text" id="text1" style="text-align:center;width:80px" value="abc">
<input type='button' id="btn" value="click">
JavaScript:
document.getElementById('btn').onclick = function(){
console.log(document.getElementById('text1').style.textAlign);
document.getElementById('text1').style['text-align'] = "left";
}
You can fix this bug by using the ::-ms-value pseudo element. You need to add some padding so it triggers a repaint. As it is the pseudo element rather than the actual element you are adding padding too, it looks like it doesn't change the actual width of the input. It also has the advantage of not being applied to non-IE browsers.
CSS:
.update::-ms-value {
padding-right: 1px;
}
JS:
document.getElementById('text1').className += "update";
http://jsfiddle.net/yHnLK/22/
Of course, you’d want to store the text1 element in a variable so you don't keep calling getElementById each time. Adding the text-align: left; via CSS would also be better, rather than adjusting the style object directly.
Try this code. Hope it help you with a good solution.
I set width to zero value then using timer to set width to the previous value to make it rendering again.
HTML:
<div>
<textarea name="text">WANDER LUST</textarea>
</div>
<div>
<button class="btn-text-align" data-rule="textAlign" data-value="left">Left</button>
<button class="btn-text-align" data-rule="textAlign" data-value="center">Center</button>
<button class="btn-text-align" data-rule="textAlign" data-value="right">Right</button>
</div>
Javascript:
(function($) {
$('.btn-text-align').on('click', function(){
$obj= $(this);
rule= $obj.attr('data-rule');
ruleValue= $obj.attr('data-value');
textElement= $(':input[name="text"]')[0];
textElement.style[rule]= ruleValue;
width= textElement.style['width'];
textElement.style['width']= '0px';
timerElement = setInterval(function () {
textElement.style['width']= width;
clearInterval(timerElement);
}, 10);
})
})(jQuery);
http://jsfiddle.net/zLwq140x/
Try this code, it works in IE:
Javascript:
document.getElementById('btn').onclick = function(){
console.log(document.getElementById('text1').style.textAlign);
document.getElementById('text1').style.textAlign = "left";
}
MDN CSS Properties Reference
how can i do this?
is it possible to have a text hyperlink and once its hovered over, that text link becomes an image?
iv seen image rollovers but haven't seen or know how to code text to image rollover yet.
i just dont know where to begin and with what programming language. javascript? php? jquery?
i started of by using the following code:
Mouseover here
<img name = "img" alt = "" border = "0" />
but what this does is it keeps the text on screen whilst the image is loaded below it. i want the text to completely get rid off by the image.
any help guys? thanks so much in advance.
You can do it using just html and a css background image:
html
Mouseover here
css
a.hover_image:hover {
background: url(/url/to/image) no-repeat center center;
text-indent: -9999em;
}
You probably need a bit more css to define the width and height of the a tag, but this is the basics.
You ca in do in a lots of ways, here is a CSS rough example, just to see the idea
try this
This will make the link change to an image only when hovered, becomes text when hovering out (only CSS)
<style>
.changeable img
{
display:none;
}
.changeable:hover span
{
display:none;
}
.changeable:hover img
{
display:inline-block;
}
</style>
<span>Hyper Text</span><img src="img.png" />
Or if you want the link to permanently change to image (with jQuery)
<style>
.changeable img
{
display:none;
}
</style>
<span>Hyper Text</span><img src="img.png" />
<script type="text/javascript">
$('.changeable').hover(function(){
$(this).children('img').show();
$(this).children('span').hide();
})
</script>
Here is a javascript way to do it
<div id="link">
Mouseover here
</div>
<div id="hoverImage" style="display:none">
<img name = "img" alt = "" border = "0" src="img.JPG" onmouseout = "document.getElementById('link').style.display='block';document.getElementById('hoverImage').style.display='none';;" />
</div>
Assuming HTML similar to the following:
Some text
The following JavaScript should work:
function textToImage(elem){
if (!elem) {
return false;
}
else {
var img = document.createElement('img');
img.src = elem.href;
elem.removeChild(elem.firstChild);
elem.appendChild(img);
}
}
JS Fiddle proof of concept.
This can also be done with jQuery:
See In Action
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
</head>
<body>
<script type='text/javascript'>
$( function() {
$("#imglink").hover(
function () {
$(this).attr('small',$(this).html());
$(this).html($(this).attr('full'));
},
function () {
$(this).html($(this).attr('small'));
}
);
});
</script>
<a herf="" id='imglink' full='<img border="0" src="someImage.png" width="163" height="37"/>'>Rollover for image 'n' rollout for text</a>
</body>
</html>