jquery file
above is my jquery code. I want every time I click the frog image, it will move to the left 50 pixels. but when I run the code, it keeps saying "Invalid keyframe value for property left: +=50px"
google console
Here's a working example.
$("#clickme").click(function(){
$(this).animate({ "left": "-=50px" }, "slow" );
});
#clickme {
position: absolute;
background: red;
width: 100px;
left: 0;
right: 0;
margin: 0 auto;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="clickme">Click me</div>
Related
I'm trying to display a one line list of elements.
This list is browsed using the scrollbar.
Each element can be removed on click with a transtion making it go up and fade.
I came up with the following code:
new Vue({
el: '#container',
data: { blocks: [1, 2, 3, 4, 5, 6, 7] }
})
#container {
position: relative;
height: 100px;
width: 200px;
border: 1px solid black;
overflow-x: scroll;
}
.block {
position: absolute;
bottom: 0px;
height: 40px;
width: 40px;
background-color: blue;
cursor: pointer;
}
.rise-fade-leave-active,
.rise-fade-move {
transition: all 0.5s ease;
}
.rise-fade-leave-to {
transform: translateY(-40px);
opacity: 0;
}
<script src="https://unpkg.com/vue#2.6.11/dist/vue.min.js"></script>
<div id="container">
<transition-group name="rise-fade" tag="div">
<div v-for="(b, i) in blocks"
v-bind:key="b"
v-bind:style="{ left: i*50 + 'px' }"
v-on:click="blocks.splice(i, 1)"
class="block">
</div>
</transition-group>
</div>
But if I scroll to the most right and click on any visible element except the last one, the element seems to be pushed to the right during the list move transition.
Is there a way to prevent this?
I would like to have my element rising just vertically no matter the scroll value.
Am creating an image editor library with the support of KinetiJS.
In my html,
<div id="editorarea" class="fill">
<div id="imageContainerDiv" class="imageContainerDiv" >
<div>....</div>
<div>....</div>
<div id='rotateouterDiv' class='rotateouterDiv' >
<textarea placeholder='Enter You Text here' id='inputField' name='graffiti' class='textContainerMob'></textarea>
</div>
<div id='imageContainer'></div>
</div>
</div>
Then creating a stage
_kineticStage = new editor._Stage({
container : 'imageContainer',
width : $('#editorarea').width(),
height : $('#editorarea').height()
});
Kinetic.Util.extend(editor._Stage, Kinetic.Stage);
And adding an image,
_kineticImage = new editor._Image({
x : 0,
image : img,
y : 0,
draggable : true,
});
layer.add(_kineticImage);
The CSS applied is,
#editorarea {
width: 100%;
height: 80%;
margin-top: .1%;
min-height: 70%%;
display: block;
border-width: 2px;
border-style: solid;
}
.fill {
min-height: 85%;
height: 90%;
}
.imageContainerDiv {
width: 100%;
height: 100%;
z-index: 0;
left: 0;
right: 0;
background-color: #FFF;
display: block;
background-image: url(../images/back_pattern.png);
background-repeat: repeat;
overflow: hidden;
}
The textarea should be on the top of the image. In this case, I placed that div containing the textarea using the #media queries, for supporting different screen size and orientation.
The issue occurs when following the steps: load the page in portrait, then change the device orientation to landscape. Then the position of textarea is not correct. This is because the kinetic stage is not properly resizing on orientation change (only the area with image).
Can anyone help me to resize it properly? This should work in touch devices.
Thanks...
I have a site made of "slides" 100% height.
<div class="slide" id="one">page1</div>
<div class="slide" id="two">page2</div>
<div class="slide" id="three">page3</div>
I use waypoints to perform some animation based on the position of the scroll, and it works fine. The context used is "window" and below an example:
$('#one').waypoint(function(direction)
{
//do something
}, { offset: '75%' });
By the way, in a slide there is a button that modifies the height of an image (it becomes very big), so after the resize the height of the container changes and also the height of the "slide", too.
I need the waypoint to refresh, in order to be raised at the same percentage calculated on the new size of the slide. I tried to do
$.waypoints('refresh');
after the resize, but it seems not working.
Below a piece of my css:
html {
height: 100%;
}
body{
text-align:center;
height:100%;
margin: 0 auto;
overflow-x: hidden;
}
.slide{
height: 100%;
margin: 0 auto;
background: white;
min-height: 700px;
min-width: 1024px;
}
#home {
height: 100%;
margin: 0 auto;
position: relative;
text-align: center;
min-height: 800px;
}
Can someone help me?
I have a web site with a regular <input type="file"> file upload, POSTing the data to the backend when the form is submitted.
I would like to progressively enhance the form so that you can drop a file from outside the browser anywhere in the viewport (not just on the file input field, as built into some browsers) to upload it.
Whether or not the form autosubmits isn't important. So if the drag-and-drop only selects the file in the file field, without starting an upload, that's fine. I don't need support for multiple files. I don't need to show upload progress, thumbnails or anything fancy.
I know there are JS libs that support drag-and-drop uploads, but they all seem to upload via AJAX. I could do that, but then I would need to modify the backend and frontend to handle upload errors, redirect and show the right messages on success and so on.
I want a progressive enhancement that doesn't require any backend changes. It should happen synchronously using the form in the page. JS is fine, as long as the upload happens "in the foreground". Synchronous AJAX would not work, of course.
Although not really "synchronous" (JavaScript execution won't actually halt), you can set the files selected by <input type="file"> programatically. In fact, such elements and dragging share their file backend implementation (File and FileList instances), so it's really straight-forward. What's more, due to both frontends using FileLists, dragging multiple files work just as seamlessly.
This works in Chrome (using jQuery): http://jsfiddle.net/qMmPr/.
$(document).on("dragover drop", function(e) {
e.preventDefault(); // allow dropping and don't navigate to file on drop
}).on("drop", function(e) {
$("input[type='file']")
.prop("files", e.originalEvent.dataTransfer.files) // put files into element
.closest("form")
.submit(); // autosubmit as well
});
Thanks to #pimvdb comment, I came up with a pretty elegant solution.
Since drag and dropping on the <input type="file" /> works, why not making it full-screen on dragstart to make sure the user can't miss it? Anyway he is dragging so his intentions are clear at this moment.
Here's a demo: https://jsfiddle.net/08wbo4um
NB: unfortunately this doesn't seem to work in an iframe, but it does work on an actual page. You can still apprehend the behavior.
Here's the snippet:
$('input[type="file"]').on('change', function(e){
var fileName = e.target.files[0].name;
if (fileName) {
$(e.target).parent().attr('data-message', fileName);
}
});
$(document).on('drag dragstart dragend dragover dragenter dragleave drop', function(e) {
if ($('input[type="file"]').length) {
if (['dragover', 'dragenter'].indexOf(e.type) > -1) {
if (window.dragTimeout)
clearTimeout(window.dragTimeout);
$('body').addClass('dragged');
} else if (['dragleave', 'drop'].indexOf(e.type) > -1) {
// Without the timeout, some dragleave events are triggered
// when the :after appears, making it blink...
window.dragTimeout = setTimeout(function() {
$('body').removeClass('dragged');
}, 100);
}
}
});
h3, p {
text-align: center;
}
.form-group {
margin: 30px;
}
.file-upload .form-control {
height: 150px;
outline: 1px dashed #ccc;
outline-offset: -15px;
background-color: #eee;
}
.file-upload .form-control:before {
content: "\f093";
font: normal normal normal 14px/1 FontAwesome;
font-size: 3em;
left: 0;
right: 0;
display: block;
margin: 20px auto;
text-align: center;
}
.file-upload .form-control:after {
content: attr(data-message);
left: 0;
right: 0;
bottom: 0;
text-align: center;
display: block;
}
.file-upload .form-control input[type="file"] {
cursor: pointer;
opacity: 0;
width: 100%;
height: 100%;
position: absolute;
top: 0;
bottom: 0;
right: 0;
left: 0;
}
body.dragged .file-upload .form-control input[type="file"] {
/* Make sure it is full screen, whatever the position absolute container */
position: fixed;
top: -50vh;
bottom: -50vh;
left: -50vw;
right: -50vw;
height: 200vh;
width: 200vw;
z-index: 10002;
}
body:after {
content: 'You can drop the file. :-)';
font-size: 2em;
text-align: center;
line-height: 100vh;
position: absolute;
top: 10px;
bottom: 10px;
left: 10px;
right: 10px;
background-color: #eee;
z-index: 10000;
border-radius: 4px;
border: thin solid #ccc;
visibility: hidden;
opacity: 0;
transition: visibility 0s, opacity 0.5s ease;
}
body.dragged:after {
opacity: 1;
visibility: visible;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<h3>Drag N Drop file upload without AJAX Demo</h3>
<p>Try drag and dropping a file. :-)</p>
<div class="form-group file-upload" required="required">
<label class="cols-sm-2 control-label" for="document_file">File Upload</label><br>
<div class="cols-sm-10">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-file" aria-hidden="true"></i></span>
<div class="form-control" data-message="Click to select file or drag n drop it here">
<input required="required" title="Click to select file or drag n drop it here" type="file" name="document[file]" id="document_file">
</div>
</div>
</div>
</div>
It can be done by turning autoUpload to false, collecting the files in an array, then on form submit do a single ajax call with all the files together with the form data, as described here.
Please look at this page here.
This is a really straightforward bit of jquery animate() that animates the title text up to the top of page - that's all!
In FF and Opera it's perfect.
In IE9 it jumps first to the bottom of the page and then animates up.
In Chrome it jumps to the top of the page and then animates down!
wtf!
The jquery call is:
$(function(){
$('#name_holder').click(function(){
$('#name_holder_wrap').animate(
{top: '75px'}
, 500
, 'swing'
, function() {
$('#name_holder').attr({"style": 'cursor:default'});
}
);
});
});
and here's the css for the elements involved:
#name_holder_wrap {
padding: 0px;
width: 100%;
position: absolute;
height: auto;
top: 45%;
}
#name_holder {
padding: 0px;
width: 600px;
height: auto;
text-align: center;
margin-right: auto;
margin-left: auto;
display: block;
cursor: pointer;
}
(Sorry, I haven't quite got my head round how to insert code into these posts properly - can't get those closing curly braces to include in the code block - I am trying!)
So, I'd really appreciate any pointers on this - i've been wrestling with it for some hours now and really need to get on!
Many thanks in advance!
Scott
Works fine for me in IE9 for me too, but a fix for Chrome would be to animate to a percent value instead of pixels:
$(function(){
$('#name_holder').click(function(){
$('#name_holder_wrap').animate(
{top: '15%'}
, 500
, 'swing'
, function() {
$('#name_holder').attr({"style": 'cursor:default'});
}
);
});
});
If that dosen't work, you could change the percent value in the css, maybe with help of some javascript.
The problem here is the combination of CSS and JQuery, which need to be correct in order for both IE and Chrome to work as you would hope.
Here's how I have things set up and it worked fine.
.object_to_be_animated {
position: absolute;
left: 0;
top: 96px;
width: 259px;
height: 85px;
background: url(...) left top repeat; }
The important thing here is that I have absolute positioned my element using TOP, not bottom.
I then structured my Jquery like so
function slide_up() { $(this).children(".overlay").animate({top: '-=51px'}); }
function slide_down() { $(this).children(".overlay").animate({top: '+=51px'}); }
$(".rolloverLink").hoverIntent(slide_up,slide_down);
Remember to use the same units with your CSS and JQuery, I'd recommend using pixels as it keeps things precise. Don't mix em, px, %.
This should hopefully fix the issue