I'm building a site which allows users to create an html page which can then be saved and shared on another site. I want them to be able to resize and drag the page elements. I can do this using jQuery, but I'm not sure how I then save that so that when the page is viewed elsewhere, it looks the same.
I haven't decided yet how to store the page info, but what I'm thinking is that I can store each element in the database along with its absolute position, and its contents. Does that sound like a good plan?
If so, how do I get the position for the div to pass to the php so that it can be saved?
Thanks.
JQueryUI Resizable has an event called resize that you can use:
var resposition = '';
$('#divresize').resizable({
//options...
resize: function(event,ui){
resposition = ui.position;
}
});
The same occurs with JQueryUI Draggable and its event drag:
var dragposition = '';
$('#divdrag').draggable({
// other options...
drag: function(event,ui){
dragposition = ui.position;
}
});
resposition and dragposition is going to be arrays. You can see it working here: http://jsbin.com/uvuzi5
EDIT: using a form, you can save dragposition and resposition into hidden inputs
var inputres = '<input type="hidden" id="resposition" value="'+resposition.left+','+resposition.top+'"/>'
$('#myform').append(inputres);
var inputdrag = '<input type="hidden" id="dragposition" value="'+dragposition.left+','+dragposition.top+'"/>'
$('#myform').append(inputdrag);
And in your PHP file to handle the form:
$dragposition = $_GET['dragposition'];
$resposition = $_GET['resposition'];
$dragposition = explode(',',$dragposition);
$resposition = explode(',',$resposition);
Finally, both variables should be arrays with top and left attributes:
$dragposition => [top,left] attributes from draggable
$resposition => [top,left] attributes from resizable
you have to save position at some where so that you can get position
details when next time you open page.
option 1: you can store html elements position details in "localStorage" its default browser storage.
Example: Demo
<!DOCTYPE html>
<html lang="en">
<head>
<title>Dashboard</title>
<!-- jQuery -->
<script src="vendor/jquery/jquery.min.js"></script>
<link rel="stylesheet" type="text/css" href="dist/css/jquery-ui.min.css">
<script src="dist/js/jquery-ui.min.js"></script>
</head>
<body>
<script>
var positions = JSON.parse(localStorage.positions || "{}");
$(function() {
var d = $("[id=draggable]").attr("id", function(i) {
return "draggable_" + i
})
$.each(positions, function(id, pos) {
$("#" + id).css(pos)
})
d.draggable({
containment: "#wrapper",
scroll: false,
stop: function(event, ui) {
positions[this.id] = ui.position
localStorage.positions = JSON.stringify(positions)
}
});
});
</script>
<div id="wrapper">
<div id="draggable" class="ui-widget-content draggable" style="height:100px;width:100px;float:left">Div1</div>
<div id="draggable" class="ui-widget-content draggable" style="height:100px;width:100px;float:left">Div2</div>
<div id="draggable" class="ui-widget-content draggable" style="height:100px;width:100px;float:left">Div3</div>
</div>
</body>
</html>
option 2: you can store html elements position details in "your database"
Related
I am trying to make div element screenshot, but combined with draggable jQuery, and have no luck, I can take screenshot of div and save it like png, but if I drag some elements on that div and then save screenshot I get only what is inside that div and draggable elements over that div? Any idea, this mine code so far
<script type="text/javascript" src="js/html2canvas.js"></script>
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
<script language="javascript">
$(document).ready(function() {
$("#myBtn").click(function () {
html2canvas($("#chartDiv"), {
onrendered: function (canvas) {
var imgSrc = canvas.toDataURL();
$("#myDiv").html('').show();
var url = "ajax.php";
$.post(url, {contentVar: imgSrc} ,function(data) {
$("#myDiv").html(data).show();
});
}
});
});
});
</script>
<script>
$(function() {
$( ".draggable" ).draggable();
});
</script>
I am using AJAX to save image and present in new element
AJAX.PHP
$contentVar = $_POST['contentVar'];
$filteredData=substr($_POST['contentVar'], strpos($_POST['contentVar'], ",")+1);
//Decode the string
$unencodedData=base64_decode($filteredData);
//Save the image
file_put_contents('img.png', $unencodedData);
echo "<img src="img.png">";
And here is the HTML:
<div id="chartDiv"><img src="img/assets/logo.png"></div>
<button id="myBtn">Create image</button>
<div id="myDiv"></div>
<img src="img/assets/logo.png" class="draggable" />
<img src="img/assets/logo.png" class="draggable" />
Why not disable the the draggalbe elements before taking the screenshot, then re-enabling them. This will remove the jquery_ui draggable elements and css.
While their are plenty of posts regarding reloading a jQueryUI tab via the load method, I can't seem to make it work in 1.9+. I wish I could see a way to show this in a fiddle, but as I don't... note that the refresh button/function works every time in the following nested tabs set-up under 1.8+ but works only once under 1.9+, and fails after that. In context, (loading dynamic content via php under wordpress) it doesn't work at all. According to the ajaxStart()ajaxStop() function calls, an ajax call is made every time the refresh button is clicked, however the content (watch the date/time under tab E or tab A/sub parent E) is only reloaded on the first click of the #refresh button, which fails to re-load the tab content on subsequent clicks.
stye.css
div.clear { clear:both; }
#refresh { position: relative; top:-40px; left:300px; }
#loading
{ display:none;
position: absolute;
top:100px;
left:300px;
font-size: 200%;
z-index:1001;
border:3px solid green;
background:#ffffff;
}
tabs.js
jQuery(function()
{ set_tabs();
jQuery('body').on("click", "#refresh", function()
{ jQuery('.tabset ul li a').each(function()
{ var link = jQuery(this);
var tab = link.parent();
var tabset = link.closest('div.tabset');
if(tabset.is(':visible') && tab.hasClass('ui-state-active')) index = link.text().replace(/ /g, '_');
});
jQuery(".tabset").tabs( "load" , index );
});
jQuery("#loading").ajaxStart(function() {jQuery(this).show();});
jQuery("#loading").ajaxStop(function(){ jQuery(this).fadeOut(1500); });
});
function set_tabs()
{ jQuery('.tabset').tabs({ cache:true }); }
index.html
<!--script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/jquery-ui.min.js"></script>
<link type="text/css" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.17/themes/smoothness/jquery-ui.css" rel="stylesheet"-->
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.9.2/jquery-ui.min.js"></script>
<link type="text/css" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.9.2/themes/smoothness/jquery-ui.css" rel="stylesheet">
<script type="text/javascript" src="tabs.js"></script>
<link type="text/css" href="style.css" rel="stylesheet" />
<div id="parentTabSet" class="tabset">
<ul>
<li>A</li>
<li>B</li>
<li>C</li>
<li>D</li>
<li>E</li>
</ul>
<input type='button' id='refresh' value='refresh' />
<div id='loading'>Loading...</div>
<div id="A" class="tabset">
<ul>
<li>A_1</li>
<li>A_2</li>
<li>parent E</li>
</ul>
<div id="A_1"><p>A_1 - FOO</p></div>
<div id="A_2"><p>A_2 - BAR</p></div>
</div>
<div id="B"><p>Div B</p></div>
<div id="C"><p>Div C</p></div>
<div id="D"><p>Div D</p></div>
</div>
tabs_e.html
<script>
jQuery( function()
{ set_tabs();
var d = new Date();
jQuery('#E_1 p').text(d);
jQuery('#E_2 p').text(d);
});
</script>
<div class="tabset">
<ul>
<li>E_1</li>
<li>E_2</li>
</ul>
<div id="E_1"><p>E_1 - BAR</p></div>
<div id="E_2" class='clear'><p>E_2 - BAZ</p></div>
</div>
The .live() function has been deprecated for a while now, and support is completely gone in jQuery 1.9+. Use this:
$(document).on("click", "#refresh", function() {
// your current "live" code
});
So it turns out that not only has the cache option been deprecated in 1.9+ it's legacy behavior has been altered such that (if used) the load method will not reload the tab content.
The approach I've come up with is -- I think -- an abomination which I'm hoping some one might provide a cleaner alternative to. (oh pleeeaazzz!) Anyway, FWIW... here's what I came up with.
tabs.js (revisited)
jQuery(function()
{ set_tabs();
jQuery(document).on("click", "#refresh", function()
{ refresh = {};
refresh.tab = true;
jQuery('.tabset ul li a').each(function()
{ var link = jQuery(this);
var tab = link.parent();
var tabset = link.closest('div.tabset');
if(tabset.is(':visible') && tab.hasClass('ui-state-active')) index = link.text().replace(/ /g, '_');
});
jQuery(".tabset").tabs( "load" , index );
});
jQuery("#loading").ajaxStart(function() {jQuery(this).show();});
jQuery("#loading").ajaxStop(function(){ jQuery(this).fadeOut(1500); });
});
function set_tabs()
{ jQuery('.tabset').tabs(
{ beforeLoad: function( event, ui)
{ if(typeof refresh.tab =='undefined')
{ if ( ui.tab.data( "loaded" ))
{ event.preventDefault();
return;
}
ui.jqXHR.success(function() { ui.tab.data( "loaded", true );});
} else refresh={};
}
});
}
I am working on a web application and was making great progress using JQuery UI Tabs, specifically the 'url' method of dynamically updating the target url of the ajax request which was bound to each tab. I have created a simplified example here:
Each of the 2 Tabs, function 1 & function 2, display the results of some tests based on the parameters that are passed to the test. The tests remain the same throughout, but I was changing the variables used in the functions by manipulating the url bound to the tab. The 'url' method of updating the url being called on a lazy loading Tab allowed me to do this, but its now been deprecated and won't be supported at all soon. So I have been searching for a way to do this using the 'beforeLoad' event in JQuery UI 1.9.
The suggestion was that one could manipulate the ui.ajaxSettings to set the data parameter but there is a bug (http://bugs.jqueryui.com/ticket/8673), and it appears this won't be fixed. The workaround suggested is to manipulate the ui.ajaxSettings.url instead.
My working example is below, but I'm not sure if this is the cleanest / most appropriate way to achieve what I'm after and any suggestions would be most welcome. I struggled to find examples on how to do even this much, so hopefully it will help someone else in a similar situation.
<title> Jquery Tabs AJAX Test</title>
<script type="text/javascript" src="js/jquery-1.8.2.js"></script>
<script type="text/javascript" src="js/jquery-ui-1.9.1.custom.js"></script>
<link rel="stylesheet" type="text/css" href="css/smoothness/jquery-ui-1.9.1.custom.css">
</head>
<body >
<script type=text/javascript>
$(document).ready(function() {
$( '#tabs' ).tabs({ });
$('button.set_variable').click(function() {
var variable = $(this).val();
$( '#tabs' ).tabs({
beforeLoad: function( event, ui ) {
ui.ajaxSettings.url += "&variable=" + variable ;
}
});
var selected_tab = $('#tabs').tabs('option', 'selected');
$( '#tabs' ).tabs("load", selected_tab);
});
})
</script>
<button class="set_variable" value="1">Variable = 1</button>
<button class="set_variable" value="2">Variable = 2</button>
<button class="set_variable" value="3">Variable = 3</button>
<div id="tabs" >
<ul>
<li>Function 1 </li>
<li>Function 2 </li>
</ul>
</div>
</body></html>
N.B. The ajax.php file here just echos back what was passed to it.
<?php
extract($_GET);
var_dump($_GET);
?>
You could do something like this too :
var variable = '';
$( '#tabs' ).tabs({ beforeLoad: function( event, ui ) {
if(variable != '')
ui.ajaxSettings.url += "&variable=" + variable ;
}});
$('button.set_variable').click(function() {
variable = $(this).val();
});
http://jsfiddle.net/DNWzY/1/
I'm trying to use jQuery UI's .tabs() to obtain content via AJAX, but the default behavior is to grab the entire page's content. How would I obtain content from a specific #id and/or multiple #id's?
I have a feeling I will need to use the load: event (http://docs.jquery.com/UI/Tabs#event-load), but I need an assist figuring this out.
Example:
The Page with the tabs that is getting and displaying the tabbed content. I have placed #content after the first #the_tabs link to retrieve in an attempt to obtain that specific region of the content, but the entire page is still loaded.
<div id="tabs">
<div id="tabs_display">
</div>
<ul id="the_tabs">
<li><span>1</span></li>
<li><span>2</span></li>
<li><span>3</span></li>
<li><span>4</span></li>
</ul>
</div><!-- /#tabs -->
The page being retrieved by the previous markup:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>Remote HTML Page Example</title>
</head>
<body>
<div id="content">
I want this content
</div>
<div id="other_stuff">
Not this content
</div>
</body>
</html>
the JS (for setup purposes):
$(document).ready(function(){
/* Tabs
--------------------*/
$(function() {
var $tabs = $('#tabs').tabs({
});
});
});
In Jquery-UI 1.9, "ajaxOptions" is depreciated; so instead the code below worked for me:
(ref: http://jqueryui.com/upgrade-guide/1.9/#deprecated-ajaxoptions-and-cache-options-added-beforeload-event)
$(function() {
$( "#the_tabs" ).tabs({
beforeLoad: function( event, ui ) {
ui.ajaxSettings.dataType = 'html';
ui.ajaxSettings.dataFilter = function(data) {
return $(data).filter("#content").html();
};
}
});
});
$(document).ready(function(){
/* Tabs
--------------------*/
var $tabs = $('#the_tabs').tabs({
ajaxOptions: {
dataFilter: function(data, type){
return $(data).filter("#content").html();
}
}
});
});
Solution props to Supavisah in #jquery on irc.freenode.net
I have had luck using .find, rather than .filter. Like this:
$(document).ready(function(){
$('#the_tabs').tabs({
ajaxOptions: {
cache : true,
dataFilter: function(data){
return $(data).find('#content');
},
}
});
});
I can't get any icons to be shown on a modal dialog box when I try to use jQueryUI via Google Ajax API. The icons do not appear but when I click on the locations where they are supposed to be the relevant functinality works (e.g. I can resize and close the modal dialog box). Here's the problematic screenshot and my code for Jetpack:
http://www.flickr.com/photos/64416865#N00/4303522684/
function testJQ() {
var doc = jetpack.tabs.focused.contentDocument;
var win = jetpack.tabs.focused.contentWindow;
$.get("http://ajax.googleapis.com/ajax/libs/jquery/1.4.0/jquery.min.js", function(js) {
var script = doc.createElement("script");
script.innerHTML = js;
doc.getElementsByTagName('HEAD')[0].appendChild(script);
$.get("http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js", function(js) {
var script = doc.createElement("script");
script.innerHTML = js;
doc.getElementsByTagName('HEAD')[0].appendChild(script);
$.get("http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/themes/ui-lightness/jquery-ui.css", function(js) {
var style = doc.createElement("style");
style.innerHTML = js;
doc.getElementsByTagName('HEAD')[0].appendChild(style);
script = doc.createElement("script");
script.innerHTML = 'var myDialogFunc = function () {';
script.innerHTML += '$("<div id=dialog title=\\"Basic Dialog\\"> <p>The dialog window can be moved, resized and closed with the X icon.</p></div>").appendTo("body");';
script.innerHTML += '$("#dialog").dialog({'
script.innerHTML += ' bgiframe: true, height: 140, modal: true';
script.innerHTML += ' });';
script.innerHTML += '};';
doc.body.appendChild(script);
win.wrappedJSObject['myDialogFunc']();
});
});
});
}
On the other hand, in a simple html document I can use Google Ajax API, load jquery and jQueryUI and get the icons correct without any problems. Here's the screenshot and source code that works as I expect:
http://www.flickr.com/photos/64416865#N00/4303522672/
<html>
<head>
<script src="http://www.google.com/jsapi"></script>
<script type="text/javascript">
var myDialogFunc = function () {
$("#dialog").dialog({
bgiframe: true,
height: 140,
modal: true
});
};
// Load jQuery
google.load("jquery", "1.4.0");
google.load("jqueryui", "1.7.2");
google.setOnLoadCallback(function() {
myDialogFunc();
});
</script>
<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/themes/ui-lightness/jquery-ui.css" type="text/css" media="all" />
</head>
<body>
<div id="dialog" title="Basic Dialog">
<p>The dialog window can be moved, resized and closed with the X icon.</p>
</div>
</body>
Any ideas about why I can't get the icons in my Jetpack version?
Code below solves my problem:
js = js.replace("url(", "url(http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/themes/ui-lightness/", "g");
style.innerHTML = js;