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JavaScript - Uploading Images In Jquery Or Html5
i want to know how to Upload images or videos through drag and drop (jquery or html5 tools)
Similar TutorialsWhat would be the best way to get data for a mobile site. I've tried using Jquery $.ajax to bring in the data from a php file. It seems to work however it takes some time to load without a way to really give a progress meter. I was wondering what the fastest way to do this would be. For instance it loads and loads then after a long while the alert(); pops up and the data loads into the page. Ultimately i was thinking i could use the ajax request to read in the data from the mysql database server, then transfer it to localstorage, im using HTML5 primarily for the development also just for reference. Somewhat new to mobile development i was just wondering if anyone had a starting point for me to look at and go from there. Code: $(document).ready(function($){
var dataret = 0;
$.ajax({
type: 'POST',
url: 'mobile.php',
beforeSend: function(){
$('#status').show();
},
success: function(data){
//initialize localstorage here
alert('success');
// if it takes as long as it does, a few minutes, at least show a loading bar...
$('#progress').progressbar({
});
},
dataType: 'json'
});
});
Thanks in advance! I am having a problem sending info to a database. I have set up drag and drop with HTML5 and it is working, but I need to be able to get the values of the images uploaded to the database when each one is dropped into a dropzone. I don't need to upload the images to the database - just need the value of each image sent to it. Here is the HTML: Code: <ul id="images"> <li><a id="1" draggable="true"><img src="images/1.jpg" value = "flower"></a></li> <li><a id="2" draggable="true"><img src="images/2.jpg" value = "boy"></a></li> <li><a id="3" draggable="true"><img src="images/3.jpg" value = "girl"></a></li> </ul> <form name = "objects" id="form" action = "form.php" method = "post"> <div class="drop_zones"> <div class="drop_zone" id="drop_zone1" droppable="true" type = "text" name = "drop_zone1"> </div> <div class="drop_zone" id="drop_zone2" droppable="true" type = "text" name = "drop_zone2"> </div> <div class="drop_zone" id="drop_zone3" droppable="true" type = "text" type = "file" name = "drop_zone3"> </div> </div> and the javascript Code: var addEvent = (function () {
if (document.addEventListener) {
return function (el, type, fn) {
if (el && el.nodeName || el === window) {
el.addEventListener(type, fn, false);
} else if (el && el.length) {
for (var i = 0; i < el.length; i++) {
addEvent(el[i], type, fn);
}
}
};
} else {
return function (el, type, fn) {
if (el && el.nodeName || el === window) {
el.attachEvent('on' + type, function () { return fn.call(el, window.event); });
} else if (el && el.length) {
for (var i = 0; i < el.length; i++) {
addEvent(el[i], type, fn);
}
}
};
}
})();
var dragItems;
updateDataTransfer();
var dropAreas = document.querySelectorAll('[droppable=true]');
function cancel(e) {
if (e.preventDefault) {
e.preventDefault();
}
return false;
}
function updateDataTransfer() {
dragItems = document.querySelectorAll('[draggable=true]');
for (var i = 0; i < dragItems.length; i++) {
addEvent(dragItems[i], 'dragstart', function (event) {
event.dataTransfer.setData('obj_id', this.id);
return false;
});
}
}
addEvent(dropAreas, 'dragover', function (event) {
if (event.preventDefault) event.preventDefault();
this.style.borderColor = "#000";
return false;
});
addEvent(dropAreas, 'dragleave', function (event) {
if (event.preventDefault) event.preventDefault();
this.style.borderColor = "#ccc";
return false;
});
addEvent(dropAreas, 'dragenter', cancel);
// drop event handler
addEvent(dropAreas, 'drop', function (event) {
if (event.preventDefault) event.preventDefault();
// get dropped object
var iObj = event.dataTransfer.getData('obj_id');
var oldObj = document.getElementById(iObj);
// get its image src
var oldSrc = oldObj.childNodes[0].src;
oldObj.className += 'hidden';
var oldThis = this;
setTimeout(function() {
oldObj.parentNode.removeChild(oldObj); // remove object from DOM
// add similar object in another place
oldThis.innerHTML += '<a id="'+iObj+'" draggable="true"><img src="'+oldSrc+'" /> </a>';
// and update event handlers
updateDataTransfer();
// little customization
oldThis.style.borderColor = "#ccc";
}, 500);
return false;
});
and the php PHP Code: <?php $sql="INSERT INTO table_answers (drop_zone1, drop_zone2, drop_zone3) VALUES ('$_POST[drop_zone1]','$_POST[drop_zone2]','$_POST[drop_zone3]')"; if (!mysql_query($sql,$db)) { die('Error: ' . mysql_error()); } echo $_POST["drop_zone1"]; echo $_POST["drop_zone2"]; echo $_POST["drop_zone3"]; ?> There is no error, it is not registering that there is something in the dropzone - nothing is being sent through the php. I have tried doing it with just text(instead of the image) and that won't work either. I am unsure of how to target the value of each image through javascript/php. Please help if you can, Thanks I currently am using the jQuery UI DatePicker for my page. For each date that has an "event" listed for that day, the date is highlighted. The other part of my page on the bottom has a "previous" and "next" button. This is basic record selection/navigation pretty much, but I am new to Javascript. Is there an easy way to navigate through these? Any help would be majorly appreciated. Thanks hi, I am fairly new to jquery and would like som direction on how to complete this menu. I have a list which has 6 bg images which have on and active state images. these are are currenly changing when you hover using the a:hover css. my question is i have a fairly large page and as you scroll down the menu follows the top of the screen but what i would like to happen is when the menu reaches a certain point on the page the menu item that it corrosponds to becomes active (changes to the on state bg image). i have an idea that as you scroll down the page and you get to a certain position on the page you would remove the classes for all of them. use the selecter to select my id and add a special class with that specific bg image on it. the only part i am struggling with is how would i determin how far down the page i am i know theres a function called .position() and you can use position.top. but not sure how i can use that to help me. if you could point me in the direction or just a hint that would be really helpful. thanks in advance I have 4 images and these images are changing automatically with duration of 2 seconds with show hide animation. and there are 4 bullets with mentioned above 4 images. these bullets are highlighting for example if image number 1 is showing than bullet number 1 is highlighting. same thing for other 3 bullets and images please send me the code for it I am trying to set up a jQuery carousel on my home page. I want it to operate by mouse - also auto scrolling, be horizontal, be circular, show one image at once. I currently have three images to show one at a time in a containing div. All three images are showing together. One is in the container, in the right place, two others are shown below it. These two should be hidden in the carousel. The carousel itself, does not work. Please can anyone tell me what I am doing wrong?! I would like to keep, at least some, of my hair! Here is my code in the head; Code: <link rel="stylesheet" type="text/css" href="css/deestyle.css" />
<script type="text/javascript" src="js/jquery-1.4.4.js"></script>
<script type="text/javascript" src="js/jcarousellite_1.0.1.pack.js"></script>
<!-- Optional -->
<script type="text/javascript" src="js/mousewheel.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$(function() {
$(".carousel").jCarouselLite({
mouseWheel: true,
auto: 800,
speed: 500,
vertical: false,
circular: true,
visible: 1
});
});
});
</script>
This is the code in the body;
<div class="carousel">
<ul id="slides">
<li><img src="images/imagered.jpg" alt="" width="650" height="350" ></li>
<li><img src="images/imageblue.jpg" alt="" width="650" height="350" ></li>
<li><img src="images/imagegreen.jpg" alt="" width="650" height="350" ></li>
</ul>
</div>
Here is the CSS code;
.carousel {
position: absolute;
top: 200px;
right: 0px;
width: 650px;
height: 350px;
margin: 0px;
padding: 0px;
border: 1px solid #00ff00;
}
#slides {
list-style-type:none;
float: left;
padding: 0;
margin: 0;
}
Big thank you's for any help, in advance Hello, I have this short script he Code: function resizeImages() { //Function will be ran onload in the <body> tag
var img = document.images; //Puts all the images in an array
for (var i = 0; i < img.length; i++) { //A loop to execute a set of functions for every image
var parentElement = img[i].parentNode; //Gets parent element of image
var parentWidth = parentElement.width(); //Gets width of parent element (value is an integer without "px")
var imgWidth = img[i].width(); //Gets image width
var parentHeight = parentElement.height(); //Gets height of parent element
var imgHeight = img[i].height();//Gets image height
if (parentWidth < imgWidth){
img[i].width(parentWidth); //Sets width of image to width of parent element
img[i].style.height = "auto"; //Scales height
}
if (parentHeight > imgHeight){
img[i].height(parentHeight); //Sets height of image to height of parent element
img[i].style.width = "auto"; //Scales width
}
alert(parentWidth); //To test if parentNode is working correctly. Should return an integer.
}
}
It's got some JQuery in it (.width() and .height()) to make manipulation of the dimensions easier to manage. Basically, it's supposed to resize all the images on the webpage to the size of their parent elements (divs) without losing aspect ratio. Image overflow will be hidden so that no matter what the aspect ratio of the image and it's container the largest possible area of the image will be exposed. The alert() function I have at the bottom is supposed to run as a test that each loop is working correctly. However, my images don't get resized and I get no alert. I think the loop may be breaking out before it goes through everything. Anyone have ideas? I'm not a Javascript coder. Thank you, Jared So, i have this code which retrieves php files for me using jquery and id love to get it working with Jquery history plugin. I tried modifying the code i got from the ajax demo to work for me, but i just couldnt do it as i do not know any javascript really.. ( actually what i tried was simply to change "#ajax-links a" to "#menu li a" and .html to .php ..but nothing.. :rolleyes: Id be very gratefull if someone would help me out with this one. All related code can be found bellow (the ones that should be needed anyways): This is the code that retrieves php files inside "#content" when item from "#menu li a" with the specified id is clicked Code: $(document).ready(function(){
//References
var change = $("#menu li a");
var loading = $("#loading");
var content = $("#content");
//Manage click events
change.click(function(){
//show the loading bar
showLoading();
//load selected section
if(this.id == "home")
{
change.load(this.className='current-page');
content.slideUp();
content.load("pages/index.php", hideLoading);
content.slideDown();
}
else if(this.id == "secondpage")
{
change.load(this.className='current-page');
content.slideUp();
content.load("pages/secondpage.php", hideLoading);
content.slideDown();
}
else
{
//hide loading bar if there is no selected section
hideLoading();
}
});
//show loading bar
function showLoading(){
loading
.css({visibility:"visible"})
.css({opacity:"1"})
.css({display:"block"})
;
}
//hide loading bar
function hideLoading(){
loading.fadeTo(1000, 0);
};
});
Heres the structure of the menu/content Code: <ul id="menu"> <li><a id="home" class="normal" href="#Home"></a></li> <li><a id="secondpage" class="normal" href="#Secondpage"></a></li> </ul> <div id="content"> <ul id="sec-menu"> <li><a id="link1" class="normal" href="#">Link1</a></li> <li><a id="link2" class="normal" href="#">Link2</a></li> </ul> </div> Heres the code that jquery history plugin uses in demo for ajax Code: jQuery(document).ready(function($) {
function load(num) {
$('#content').load(num +".html");
}
$.history.init(function(url) {
load(url == "" ? "1" : url);
});
$('#ajax-links a').live('click', function(e) {
var url = $(this).attr('href');
url = url.replace(/^.*#/, '');
$.history.load(url);
return false;
});
});
hi, i have a jquery problem... this script is not working with jquery-1.4.2.min, but it works with jquery-1.2.6.min.js, can anyone help me???the script is the above: (it is not working the tab actions, the slideout works...) http://www.benjaminsterling.com/wp-c...es/sidetab.htm the javascript code is the above: PHP Code: var jqsideTabs; var tabs, h = 50, r = 0,ra = 0; $(document) .ready(function(){ jqsideTabs = $('#sideTabs').addClass('closed'); tabs = jqsideTabs .find('.tab h3') .clone() .appendTo(jqsideTabs) .each(function(i){ var that = $(this), cls = '',ow,newThis, newEl; if( i == 0 ) cls = ' active'; newEl = $('<a href="#" class="tabLinks'+cls+'">' + that.text() + '</a>'); that.replaceWith(newEl); ow = newEl.outerWidth(); if( i == 0 ) ra = ow; else r = ow; h = newEl.css({'top':h , 'right': -ow }).height() + h; newThis = newEl.get(0); newThis.jq = newEl; newThis.i = i; newEl.click(function(){ var el = this.jq; if( jqsideTabs.hasClass( 'closed' ) ){ jqsideTabs.removeClass('closed'); } else if( !jqsideTabs.hasClass( 'closed' ) && el.hasClass('active') ){ jqsideTabs.addClass('closed'); } el .siblings() .removeClass('active') .css({'right': -r }) .end() .addClass('active') .css({'right': -ra }); tabs.eq( this.i ).show().siblings('.tab').hide(); return false; }); }) .end() .parent() .eq(0) .addClass('active') .end() .filter(':not(:eq(0))') .hide() .end(); jqsideTabs.bind("mouseleave",function(){ jqsideTabs .animate({left:-310}, 'fast', function(){ jqsideTabs.addClass('closed').removeAttr('style'); }); }); }); and the html file is: [HTML] <div id="sideTabs"> <div class="tab"> <h3>Tab 1</h3> <div class="gut"> <p>Some text</p> </div> </div> <div class="tab"> <h3>Tab 2</h3> <div class="gut"> <ul> <li>link</li> </ul> </div> </div> <div class="tab"> <h3>Tab 3</h3> <div class="gut"> <ul> <li>link</li> </ul> </div> </div> </div> [/HTML] the problem is that the tab button works, but the content doesnt change...in all of tabs showing the same text(showing all tbas content).... can anyone help...please..... i keep getting the error GET http://code.jquery.com/jquery.min.map net::ERR_TOO_MANY_REDIRECTS & Failed to load resource: net::ERR_TOO_MANY_REDIRECTS when i load my page...and the havascript doesn't work properly on ym page...how do i resolve this. thanx in advance I want to know how to move a character on the path when you click the left or right arrow, but also when the left arrow is clicked it will switch between 4 images, making it look as though the characters is actually walking left arrow = moves character to left on the path(walks to the left) right arrow = moves character to right on the path(walks to the right) up arrow = character jumps This is my original code, it draws a path something like this \____ ........................................................................................\ Code: function drawMap(){
// get the canvas element using the DOM
var canvas = document.getElementById('map');
// Make sure we don't execute when canvas isn't supported
if (canvas.getContext){
// use getContext to use the canvas for drawing
var ctx = canvas.getContext('2d');
// Stroked Path
ctx.beginPath();
ctx.moveTo(0,70);
ctx.lineTo(45,115);
ctx.lineTo(250,115);
ctx.lineTo(300,135);
ctx.stroke();
ctx.closePath();
} else {
alert('Your broswer does not support Canvas, We recommend getting the latest version of google chrome for the best quality');
}
}
Can anyone point me in the right direction? var s="attr" var i=$(s) // jQuery(elem).attr(attr,eval("elm"+attr)); jQuery(elem).$(s)(attr,eval("elm"+attr));//i tried this. how to assign a variable name in the above code(in place of s) so that i need to add an attribute to the element "elem". I want to have an example on web storage. I have an index.html page. On this page, there is a button which will go to another page, that is page1.html. On this page now, there is another button which will go to page2.html if clicked. Index.html > page1.html > page2.html Suppose if a user has already visited page2.html on the first time, how to make him/her goes directly on page2.html after clicking the button on index.html? The user must not again go to page1.html to get page2.html because he/she has already done that. I want to know how to store page sessions with HTML5 so that the user gets on his/her last visited page when he/she clicks the button. Thank. I'm keen to know what you guys think of this. In order to have HTML5 semantics and support for older browsers without Javascript enable I've written a little script that changes classes into node. For example <div class="nav"> would become <nav class="nav"> Code: //Adapt page to HTML5
function changeNodeName(element, newNodeName) {
var oldNode = element,
newNode = document.createElement(newNodeName),
node,
nextNode;
node = oldNode.firstChild;
while (node) {
nextNode = node.nextSibling;
newNode.appendChild(node);
node = nextNode;
}
for (var i = 0; i < oldNode.attributes.length; i++) {
newNode.setAttribute(oldNode.attributes[i].name, oldNode.attributes[i].value);
}
oldNode.parentNode.replaceChild(newNode, oldNode);
}
try {
var theBody = document.getElementsByTagName("body")[0];
var classNames = ["article", "aside", "command", "details", "summary", "figure", "figcaption", "footer", "header", "mark", "meter", "nav", "progress", "ruby", "rt", "rp", "section", "time", "wbr"];
for (var i = 0; i < classNames.length; i++) {
htmlFourElements = document.getElementsByClassName(classNames[i], theBody);
for (var ii = 0; ii < htmlFourElements.length; ii++) {
changeNodeName(htmlFourElements[ii], classNames[i]);
}
}
} catch(e) {
console.error(e.message);
}
Let me know what you think I am new to javascript (I started learning it today) so please explain it for newbies. I am trying to get the amount of video (in seconds) buffered already by the client and the whole duration of the video. Then, I divide them to get the precentage which was buffered so far. I have no problem storing the durating using: Code: var duration = document.getElementById('vid').duration
- returns "12.6" (seconds) I am struggling with getting the buffered time. I tried: Code: var buffered = document.getElementById('vid').buffered
This one returns "[object TimeRanges]". From what I understood this is some kind of an object (Like an array?). I tried returning "buffered.length" and I get "1" back. Please explain how I can do this. thanks Hi, I worked on this website : http://www.kesslercareers.com/index.html and cannot find out why it does not work in IE while it works in other browsers. The small video does not play while the sound does. As far as I can see it works fine in FF and Chrome. Anybody any idea? Thanks Purmar I run Windows 7 and IE9, and I believe IE9 supports HTML5 Local Storage. But when I run this offline (locally) in IE9 Code: <script type="text/javascript">
function testSupport() {
if (localStorage) {return "Local Storage: Supported"}
else {
return "Local Storage: NOT supported";
}
}
alert ( testSupport() );
</script>
I get "LocalStorage: NOT supported". Chrome returns "Local Storage: Supported" My DOCTYPE is <!DOCTYPE html> Other tests also fail in IE. Example: Code: localStorage.setItem("name", "Hello World!");
alert(localStorage.getItem("name"));
Above works in Chrome. Any advice, please? Have I not configured IE9 properly? Hi there! I found this code, in reply to someone's problem, on this forum. I have altered it to my own needs, as it's an excellent piece of code. However, I would like it to run under HTML5. I believe I need to add "canvas" code to do the same?? I have already changed the doctype! HTML heading etc., Can anyone help? Many, many thanks!! Code: <!doctype html>
<head>
<meta charset=UTF-8" />
<title>Crazy Rally - France</title>
<script type="text/javascript">
var frames = new Array();
//load frames into array
for(var i = 1; i < 417; i++){
frames[i] = new Image(480,320);
frames[i].src = "track" + i + ".png";
}
//playback
var currentFrameNumber = 1;
var fps = 30; // frames / second
const speed = 1000 / fps; // milliseconds
//var speed = 33;
function nextFrame( )
{
document.getElementById("display").src = frames[currentFrameNumber].src;
currentFrameNumber = ( currentFrameNumber + 1 ) % frames.length;
setTimeout( nextFrame, speed );
}
window.onload = nextFrame;
</script>
</head>
<body>
<img id="display" src="track1.png" width="480" height="320">
</body>
</html>
I have a code that will randomly select a div from a list and inside of that div i want there to be a sound file. How would I use html5 and javascript to make it so that when a user clicks a button it would play whatever sound was associated with that button? Code: <div id="randomdiv1" class="article_example_div"> <embed src="Black Hawk Down - Music Video - Riot.mp3" width=25 height=25 autostart=false repeat=true loop=true></embed> </div> |
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