Hi i am implementing a jquery mobile application , i want the first page backgroungd to animate like this in the link
i am unable to implement this in my jquerymobile page.
<div data-role="page" id="page" data-theme="b" >
<div data-role="header" data-position="fixed" data-theme="b">
<h1>helo</h1>
</div>
<!-- Start of content -->
<div data-role="content" id="target-content" >
</div>
<!-- end of content -->
<!-- start of footer -->
<div id="homeFooter" class="controlsFooter" data-role="footer" data-position="fixed" data-theme="b">
<div style="width:100px; margin:auto;">
<div class="center-wrapper" style="float:left; margin-right:10px;">
Next
</div><!-- end of center wrap -->
</div>
</div><!-- /footer -->
<!-- end of footer -->
</div>
Below is the code of Mr.Murat Akdeniz
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
<meta name="author" content="aaaaa" />
<title>Moving Background</title>
</head>
<body>
<style>
body
{
height: 100%;
padding: 0;
margin: 0;
background: #fff url(back2.jpg) repeat-x scroll right bottom;
background-color: #fff !important;
}
</style>
<script src="jquery-1.6.2.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript" charset="utf-8">
var scrollSpeed = 60; // Speed in milliseconds
var step = 1; // How many pixels to move per step
var current = 0; // The current pixel row
var imageWidth = 1024; // Background image width
var headerWidth = 280; // How wide the header is.
//The pixel row where to start a new loop
var restartPosition = -(imageWidth - headerWidth);
function scrollBg(){
//Go to next pixel row.
current -= step;
//If at the end of the image, then go to the top.
if (current == restartPosition){
current = 0;
}
//Set the CSS of the header.
$('body').css("background-position",current+"px 0");
}
//Calls the scrolling function repeatedly
var init = setInterval("scrollBg()", scrollSpeed);
</script>
</body>
</html>
Any help is appreciated.
It pretty much works as is.
Here is a DEMO
var scrollSpeed = 60; // Speed in milliseconds
var step = 1; // How many pixels to move per step
var current = 0; // The current pixel row
var imageWidth = 1024; // Background image width
var headerWidth = 280; // How wide the header is.
//The pixel row where to start a new loop
var restartPosition = -(imageWidth - headerWidth);
function scrollBg() {
//Go to next pixel row.
current -= step;
//If at the end of the image, then go to the top.
if (current == restartPosition) {
current = 0;
}
//Set the CSS of the header.
$('body').css("background-position", current + "px 0");
}
//Calls the scrolling function repeatedly
var init;
$(document).on("pagecreate", "#page1", function(){
clearInterval(init);
var init = setInterval(scrollBg, scrollSpeed);
});
In CSS, you set the body background and in order to see it, your need to set the jQM page and content backgrounds to transparent:
body {
height: 100%; padding: 0; margin: 0;
background: #fff url(http://lorempixel.com/1024/1000) repeat-x scroll left top;
background-color: #fff !important;
}
[data-role=page], .ui-content {
background-color: transparent !important;
}
UPDATE: OP has asked for the image to go back and forth instead of one direction.
Updated DEMO
var reverse = false;
function scrollBg() {
//Go to next pixel row
if (reverse){
current += step;
} else {
current -= step;
}
//If at the end of the image, then go to the top.
if (current == restartPosition) {
reverse = true;
}
if (current == 0) {
reverse = false;
}
//Set the CSS of the header.
$('body').css("background-position", current + "px 0");
}
Related
I basically want the browser to trigger a function when a section touches the top of the viewport as the user scrolls and I'm not really sure how to do this with Vanilla JS.
I've found some jQuery alternatives, but I'm just trying to figure out how Javascript works at the moment, so I'm not exactly sure where to begin or what to google for that matter.
The following example creates a page with a single div inside.
The scroll event handler uses Element.getBoundingClientRect() in order to get the div's position relative to the viewport and logs a msg to the console when the div is at or above the top edge of the viewport.
var handlerFired;
window.addEventListener('scroll', function(e){
var containerTop = document.querySelector('.container').getBoundingClientRect().top;
if (containerTop <= 0) {
if (!handlerFired) {
handlerFired = 1;
console.log('container at top of viewport or above');
}
}
if (containerTop > 0) {
handlerFired = 0;
}
});
body{
height:2000px;
}
.container{
width:300px;
height:200px;
border:5px solid red;
position: absolute;
top: 100px;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div class='container'> <p>scroll window ...</p> </div>
</body>
</html>
I'm trying to implement a timer that will swap the larger image with the next image in line, I feel like I'm on the right track, but I'm not getting there. I can't use Jquery or (event.target), (event.srcElement) or appendChild. Any ideas? I don't think my function is doing anything right now. Current code below:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Photo Gallery</title>
<script>
var aryImages[] = {"1.jpg", "2.jpg", "3.jpg"}
function changeImage(varImage) {
document.getElementById('bigImage').src='images/1.jpg';
for (var i = 1; i < 4; i ++)
index.html = "images/1.jpg" + photoOrder[i] +"sm.jpg";
}
</script>
/* styling elements */
<style>
img
{
width: 300px;
height: 290px;
padding: 2px;
}
body
{
text-align: center;
background-color: black;
}
</style>
</head>
<body>
<div>
<img src="images/1.jpg" id="bigImage" />
</div>
<img src='images/1.jpg' id='image1' onclick="changeImage(image1)" />
<img src='images/2.jpg' id='image2' onclick="changeImage(image2)"/>
<img src='images/3.jpg' id='image3' onclick="changeImage(image3)"/>
</body>
</html>
This should be what you're looking for. I set an interval that will rotate through your images. If the user clicks an image, that will change the image and reset the interval.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Photo Gallery</title>
<script>
var i = 1;
function changeImage(event, varImage) {
document.getElementById('bigImage').src='images/' + varImage + '.jpg';
// use this so the image interval doesnt
// interfere with user's click
if (event !== null) {
clearInterval(newInt);
newInt = setInterval(() => {
changeImage(null, i++);
if (i === 4) i = 1;
}, 500);
}
}
var newInt = setInterval(() => {
changeImage(null, i++);
if (i === 4) i = 1;
}, 500)
</script>
/* styling elements */
<style>
img
{
width: 300px;
height: 290px;
padding: 2px;
}
body
{
text-align: center;
background-color: black;
}
</style>
</head>
<body>
<div>
<img src="images/1.jpg" id="bigImage" />
</div>
<img src='images/1.jpg' id='1' onclick="changeImage(event, 1)" />
<img src='images/2.jpg' id='2' onclick="changeImage(event, 2)"/>
<img src='images/3.jpg' id='3' onclick="changeImage(event, 3)"/>
</body>
</html>
first of all you are not changing anything
you dont have a timer at all :)
here how to implement one:
setInterval(function(){
// do something;
}, 3000);
now inside the timer you should change images
for example
you should run inspect element on image to see changes because there is no images at these sources
var images = ['image1.jpg', 'image2.jpg', 'image3.jpg'];
var currentImage = 0;
// assuming that image is the image index in the array.
var changeImage = function (image) {
document.getElementById('bigImage').src = 'images/' + images[image];
};
// now we can use setInterval function
setInterval(function(){
// check if we reached the last image
if(currentImage >= images.length -1) {
// if last image go back to first one
currentImage = 0;
} else {
// if not last image so give me the next
currentImage ++;
}
// do the image change
changeImage(currentImage);
}, 3000);
<img src="images/image1.jpg" id="bigImage" />
<button onclick="changeImage(0)" > image1 </button>
<button onclick="changeImage(1)" > image2 </button>
<button onclick="changeImage(2)" > image3 </button>
I need to program a html-based monitoring surface.
For the surface I need to code circles which move from x to y and only if number xy is greater than xy.
Hard to explain but actually similar like they have it on
https://www.solarweb.com
click "click to try the preview now" on the top, than click "view demo" and choose the first system "Fronius AT Sattledt Hybrid 2"
and see the animation above on the left side.
I´ve still been able to get a circle running from the beginning of a div to the end. but only 1 circle! is it possible to have more circles in a row doing the same?
Maybe anyone can help me :)
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Moving Bullet</title>
<meta charset="utf8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<style>
#energieFluss {
width: 900px;
height: 500px;
border: 5px black solid;
overflow: hidden;
}
#bullet {
position: relative;
left: 50px;
top: 25px;
}
</style>
<body>
<div id="energieFluss" width="900px" height="500px" color="red">
<img id="bullet" src="ball-blau.png" height ="25" width= "25">
</div>
<script>
var Bullet = document.querySelector ("#bullet");
var currentPos = 0;
var requestAnimationFrame = window.requestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.msRequestAnimationFrame;
function moveBullet () {
currentPos += 8;
Bullet.style.left = currentPos + "px";
if (Math.abs(currentPos) >= 900) {
currentPos = -50;
}
requestAnimationFrame(moveBullet);
}
moveBullet ();
</script>
</body>
I think what you'll want to do here is create your image elements on the fly and then animate them. You could also do other fancy things like render on a canvas or use a JavaScript rendering library to do it more efficiently.
To create the elements on the fly, do something like this:
var balls = [];
// Run this in a loop to add each ball to the balls array.
var img = document.createElement("img");
img.src = "ball-blau.png";
img.height = 25;
img.width = 25;
document.getElementById("energieFluss").appendChild(img);
balls.push(img)
Post thought:
You could just statically define your image elements and animate multiple elements. If you already know how to animate one element, then you can apply that same knowledge to multiple.
I'm trying to do something with iframes and am struggling a little bit at the moment. Basically, I have a script that generates a grid of squares (image below) and I want to make it so that when I click on a square, I display something in a different iframe.
So for instance, say I had frame 1 (which contains the grid) and frame 2 (this is the "display" frame). If I click the top left square, then I want to display "index(0,0)" in the display frame. If I click the (1, 1) square, then I want to display "index(1,1)" and so on.
I already know how to do this within the same frame (ie I can display "index(0,0)" within frame 1 if I click on a square in frame 1), but I am just confused on how to do this in a separate frame. I've tried quite a few things but nothing seems to be working.
I will include all of my code below as well as a picture for your reference. Any help is greatly appreciated!
Javascript:
// I know this isnt good coding practice, but I was getting desperate
// trying things xD
var currentDisplay = "display";
function changeSquare() {
var image = document.getElementById(this.id);
// If image is currently green square, change to red, and vice versa
if (image.src.match("http://www.clker.com/cliparts/b/d/4/F/W/N/green-square-button-md.png")) {
image.src = "http://www.clker.com/cliparts/1/J/s/o/7/y/red-square-button-md.png";
} else {
image.src = "http://www.clker.com/cliparts/b/d/4/F/W/N/green-square-button-md.png";
}
currentDisplay = this.id;
};
function printInfo() {
document.write(currentDisplay);
}
// Creates a grid of dimensions width by height
function makeGrid(height, width) {
// Loop over height and width to create black square objects with
// buttons in middle
for (i = 0; i < height; i++) {
for (j = 0; j < width; j++) {
// Outer div is black square
var div = document.createElement("div");
div.className = "square";
div.id = ("div").concat(i,",", j);
var innerDiv0 = document.createElement("div");
innerDiv0.className = "content";
div.id = ("innerDiv0").concat(i,",", j);
div.appendChild(innerDiv0);
// InnerDiv1 & 2 are table structures (necessary for alignment)
var innerDiv1 = document.createElement("div");
innerDiv1.className = "table";
div.id = ("innerDiv1").concat(i,",", j);
innerDiv0.appendChild(innerDiv1);
var innerDiv2 = document.createElement("div");
innerDiv2.className = "table-cell";
div.id = ("innerDiv2").concat(i,",", j);
innerDiv1.appendChild(innerDiv2);
// Add green square image
var image = document.createElement("img");
image.id = ("image").concat(i,",", j);
image.src = "http://www.clker.com/cliparts/b/d/4/F/W/N/green-square-button-md.png";
image.className = "rs";
innerDiv2.appendChild(image);
document.body.appendChild(div);
// Add onclick feature
image.onclick = changeSquare;
}
}
};
GridTest.html
<head>
<link rel="stylesheet" type="text/css" href="GridTest.css">
</head>
<body>
<script src="GridTest.js">
</script>
<script>
makeGrid(20, 20);
</script>
</body>
displayPanel.html
<head>
<link rel="stylesheet" type="text/css" href="GridTest.css">
</head>
<body>
<script src="GridTest.js">
</script>
<script>
printInfo();
</script>
</body>
nestTest.html (here is where I create the iframes)
<head>
<link rel="stylesheet" type="text/css" href="GridTest.css">
<script src = "GridTest.js"> </script>
</head>
<iframe id="frame1" scrolling="no" src="GridTest.html">
</iframe>
<iframe id="frame2" scrolling="no" src="displayPanel.html"></iframe>
CSS (probably unnecessary but I'll include it anyways)
.square {
float:left;
position: relative;
width: 5%;
padding-bottom: 2.8125%;
background-color:#1E1E1E;
overflow:hidden;
outline: 1px solid #FFFFFF;
}
.whiteSquare {
float:left;
position: relative;
width: 5%;
padding-bottom: 2.8125%;
background-color:#FFFFFF;
overflow:hidden;
outline: 1px solid #FFFFFF;
}
/*
Aspect ratio | padding-bottom | for 30% width
------------------------------------------------
1:1 | = width | 30%
1:2 | width x 2 | 60%
2:1 | width x 0.5 | 15%
4:3 | width x 0.75 | 22.5%
16:9 | width x 0.5625 | 16.875%
*/
.content {
position:absolute;
height:40%;
width:47%;
padding: 5% 26.5%;
text-align:center;
}
.content .rs{
width:auto;
height:auto;
max-height:90%;
max-width:100%;
}
.table{
display:table;
height:100%;
width:100%;
}
.table-cell{
display:table-cell;
vertical-align:middle;
height:100%;
width:100%;
}
body {
font-size:20px;
font-family: 'Lato',verdana, sans-serif;
color: #000000;
background:#ECECEC;
}
.numbers{
font-weight:900;
font-size:100px;
}
Picture of current result.
In your changeSquare method, try something like this:
var frame2 = $('#frame2', top.document) //Give you top level frame jQuery Object.
for more backwards compatibility, you can use something like:
window.parent.$('#frame2')
Or something like this for no jQuery:
window.parent.getElementById('#frame2')[attributeName]
Once you have the root iFrame object, you can proceed with regular jQuery/DOM manipulation.
EDIT: here is a fully working and tested solution (Safari/Mac OS). Only the changes are highlighted below:
displayPanel.html:
<head>
<link rel="stylesheet" type="text/css" href="GridTest.css">
</head>
<body>
<script src="GridTest.js">
</script>
<script>
printInfo();
</script>
<div id="label1"></div> <!--Added a div for displaying text -->
</body>
GridTest.js:
function changeSquare() {
var image = document.getElementById(this.id);
//First get a reference to the second frame document
var secondFrameDocument = window.top.document.getElementById('frame2').contentWindow.document;
//Now set the value of the Div
secondFrameDocument.getElementById('label1').textContent=this.id;
// If image is currently green square, change to red, and vice versa
if (image.src.match("http://www.clker.com/cliparts/b/d/4/F/W/N/green-square-button-md.png")) {
image.src = "http://www.clker.com/cliparts/1/J/s/o/7/y/red-square-button-md.png";
} else {
image.src = "http://www.clker.com/cliparts/b/d/4/F/W/N/green-square-button-md.png";
}
currentDisplay = this.id;
};
Depending upon your exact scenario, you may run into security issues, particularly with Chrome. A better solution would be to perhaps use two Divs instead of iFrames.
Here's a screenshot:
I thought I'd write a simple script to animate my webpage a little.
The basic idea was to make a div grow bigger, when I push a button once and then shrink to it's original size, when I push it again. I handled the growing part well, but I can't get it to shrink again.
I'm including a complete example, could you help me fix it?
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Test</title>
<meta http-equiv="Content-Language" content="Estonian" />
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-15" />
</head>
<body>
<script type="text/javascript">
var i;
var increasing = new Boolean("true");
var height;
function testFunction() {
height = parseInt(document.getElementById("testDiv").offsetHeight);
if( increasing == true ) {
i = height + 4;
document.getElementById("testDiv").style.height = i + "px";
if( height >= 304 ) {
increasing = false;
}
else {
pause(30);
}
}
else {
i = height - 4;
document.getElementById("testDiv").style.height = i + "px";
if( height <= 104 ) {
increasing = true;
}
else {
pause(30);
}
}
}
function pause(ms) {
setTimeout("testFunction()", ms);
}
</script>
<button id="button" type="button" onclick="testFunction();">Do it!</button.
<div id="testDiv" style="border: 2px solid black; width: 400px; height: 100px; text-align: center;">
Hello!
</div>
</body>
</html>
Use a standard library like jQuery to do this, don't do it yourself as it won't be cross-browser for sure.
With jQuery, you can do things like this:
$("#div-id").animate({"height": 300}, 1000);
That'll change the div height to 300 px in 1000 ms = 1 second.