We Keep Coding

scrolling the page with the mouse

When I click the button at the bottom of the screen with the mouse and drag it upwards, I want the lock screen to close and the new page to come.
The name of the page that will open immediately after this process Page to open
I tried to do it with mouseup and mousedown but without success
Here is the full example video of the function I want to do
Streamable
.container {
position: absolute;
display: flex;
right: 40px;
bottom: 40px;
}
.Phone-container {
position: absolute;
width: 285px;
height: 580px;
border-radius: 30px;
overflow: hidden;
}
.Phone-Background {
background-image: url('https://firebasestorage.googleapis.com/v0/b/fotos-3cba1.appspot.com/o/wallpaper.jpg?alt=media&token=059229cc-3823-4d27-834a-7b62cabd69d2');
background-size: cover;
background-repeat: no-repeat;
right: 0;
bottom: 0;
}
.unlockBar {
position: absolute;
width: 40%;
height: 4px;
border-radius: 20px;
right: 30%;
top: 565px;
background-color: rgba(255, 255, 255, .7);
opacity: 0;
transition: ease all 0.2s;
cursor: grab;
}
.Phone-container:hover .unlockBar {
opacity: 1;
}
.Phone-container .unlockBar:hover:before {
opacity: 1;
transform: none;
}
.Phone-container .unlockBar::before {
content: attr(data-msj);
position: absolute;
bottom: 100%;
left: 0;
right: 0;
max-width: 100px;
margin: 0 auto;
padding-bottom: 10px;
color: #fff;
font-size: 12px;
text-align: center;
opacity: 0;
transform: translateY(0px);
transition: ease all .8s;
}
<div class="container">
<div class="Phone-container Phone-Background">
<div class="unlockBar" data-msj="Swipe Up to Open"></div>
<div class="Page to open">
</div>
</div>
</div>

You actually need to detect a swipe, scroll won't work in this case.
The question has been answered here:
Detect a finger swipe through JavaScript on the iPhone and Android
document.addEventListener('touchstart', handleTouchStart, false);
document.addEventListener('touchmove', handleTouchMove, false);
var xDown = null;
var yDown = null;
function handleTouchStart(evt) {
xDown = evt.originalEvent.touches[0].clientX;
yDown = evt.originalEvent.touches[0].clientY;
};
function handleTouchMove(evt) {
if ( ! xDown || ! yDown ) {
return;
}
var xUp = evt.originalEvent.touches[0].clientX;
var yUp = evt.originalEvent.touches[0].clientY;
var xDiff = xDown - xUp;
var yDiff = yDown - yUp;
if ( Math.abs( xDiff ) > Math.abs( yDiff ) ) {/*most significant*/
if ( xDiff > 0 ) {
/* left swipe */
} else {
/* right swipe */
}
} else {
if ( yDiff > 0 ) {
/* up swipe */
} else {
/* down swipe */
}
}
/* reset values */
xDown = null;
yDown = null;
};

make circle elements rotate in perspective

Fiddle link
I am trying to make this circle in perspective(check fiddle link). I tried the css property but it shows unusual behaviour.
/*
using:
circular positioning code:
http://stackoverflow.com/a/10152437/1644202
point at:
http://pointat.idenations.com/api
depends on:
jquery
https://github.com/thomas-dotworx/jqrotate (pointat)
*/
function createFields() {
$('.field').remove();
var container = $('#container');
for(var i = 0; i < +$('input:text').val(); i++) {
$('<div/>', {
'class': 'field',
'text': i + 1,
}).appendTo(container);
}
}
function distributeFields(deg) {
deg = deg || 0;
var radius = 200;
var fields = $('.field:not([deleting])'), container = $('#container'),
width = container.width(), height = container.height(),
angle = deg || Math.PI*3.5, step = (2*Math.PI) / fields.length;
fields.each(function() {
var x = Math.round(width/2 + radius * Math.cos(angle) - $(this).width()/2);
var y = Math.round(height/2 + radius * Math.sin(angle) - $(this).height()/2);
if(window.console) {
console.log($(this).text(), x, y);
}
$(this).css({
left: x + 'px',
top: y + 'px'
});
angle += step;
});
}
$('input').change(function() {
createFields();
distributeFields();
initPointAt();
});
var timer = null,
timer2 = null;
$('#addone').click(function() {
// do not append to current, otherwise you see it moving through the container
$('.field').addClass('moveAni');
$('<div/>', {
'class': 'field',
'text': $('.field').length +1
})
.css({
left: $('#container').width()/2-25 + 'px',
top: $('#container').height()/2-25 + 'px'})
.addClass('moveAni')
.appendTo('#container')
.pointat({
target: "#center",
defaultDirection: "down"
});
distributeFields();
// without css:
//$('.field').pointat("updateRotation");
// with css: for css move animation
clearInterval(timer); clearTimeout(timer2);
timer = setInterval(function() {
$('.field').pointat({
target: "#center",
defaultDirection: "down"
}); // does not seem to update correctly: .pointat("updateRotation")
}, 20);
timer2 = setTimeout(function() {
clearInterval(timer);
}, 420); // css animation timeout, interval +1 extra to update after the ani
// update input field
$('input:text').val($('.field').length);
});
$('#delone').click(function() {
$('#container .field:not([deleting]):last')
.attr('deleting', 'true')
.css({
left: $('#container').width()/2-25 + 'px',
top: $('#container').height()/2-25 + 'px'
})
.fadeOut(400, function() {
$(this).remove();
});
// do distribiution as if the currently out-animating fields are gone allready
distributeFields();
clearInterval(timer); clearTimeout(timer2);
timer = setInterval(function() {
$('.field').pointat({
target: "#center",
defaultDirection: "down"
}); // does not seem to update correctly: .pointat("updateRotation")
}, 20);
timer2 = setTimeout(function() {
clearInterval(timer);
}, 420); // css animation timeout, interval +1 extra to update after the ani
// update input field
$('input:text').val($('.field:not([deleting])').length); // update yet
});
createFields();
distributeFields();
initPointAt();
function initPointAt() {
$('.field').pointat({
target: "#center",
defaultDirection: "down",
xCorrection: -20,
yCorrection: -20
});
}
body { padding: 2em; }
#container { width: 600px; height: 600px; border: 1px solid #000; position: relative; border-radius: 50%;}
#center { width: 10px; height: 10px; position: absolute; left: 295px; top: 295px; background: #000; border-radius: 50%; }
.field { position: absolute; background: #f00; }
#crosshair-x { width: 600px; height: 1px; background: #000; position: absolute; left: 0; top: 300px; }
#crosshair-y { width: 1px; height: 600px; background: #000; position: absolute; left: 300px; top: 0; }
.field {
width: 50px;
height: 50px;
line-height: 50px;
text-align: center;
}
.moveAni {
transition: left 400ms ease-out, top 400ms ease-out;
}
<script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="//pointat.idenations.com/jquery.pointat.min.js"></script>
<script src="//pointat.idenations.com/jquery.rotate-1.0.1.min.js"></script>
Number of fields: <input type="text" value="4" />
<button id="addone">++</button>
<button id="delone">--</button>
<div id="container">
<div id="center"></div>
<div id="crosshair-x"></div>
<div id="crosshair-y"></div>
</div>
Then i inserted an image tad inside container and tried to add field inside image tag.
I achieved this using three.js but don't want to do this in it because it takes too much time to load.

Wrap your container in another div you apply perspective to. The perspective must be applied to the parent, not to the element itself.
Updated Fiddle link : http://jsfiddle.net/w840vkbL/1/
#perspective {
perspective: 500px;
width: 150px;
}
#container {
transform: rotateY(40deg);
background: lightblue;
height: 150px;
}
<div id="perspective">
<div id="container">
<h3>SOME PERSPECTIVE CONTENT</h3>
</div>
</div>

Make a splitter very thin and grab it

I want to make a draggle splitter between 2 panels. The following is a working version.
Now, I want to make the width of handle as thin as possible (less than 0.1px?), so there is no way to make the width (appear) smaller than 1px?
Additionally, when the splitter is thin, it is hard to select by the mouse. Is there a way to make a splitter easy to grab?
Taking JSBin as example, how did they manage to realise the splitters among the panels?
(function($) {
$.fn.drags = function(opt) {
opt = $.extend({
handle: "",
cursor: "ew-resize",
min: 10
}, opt);
if (opt.handle === "") {
var $el = this;
} else {
var $el = this.find(opt.handle);
}
var priorCursor = $('body').css('cursor');
return $el.css('cursor', opt.cursor).on("mousedown", function(e) {
priorCursor = $('body').css('cursor');
$('body').css('cursor', opt.cursor);
if (opt.handle === "") {
var $drag = $(this).addClass('draggable');
} else {
var $drag = $(this).addClass('active-handle').parent().addClass('draggable');
}
var z_idx = $drag.css('z-index'),
drg_h = $drag.outerHeight(),
drg_w = $drag.outerWidth(),
pos_y = $drag.offset().top + drg_h - e.pageY,
pos_x = $drag.offset().left + drg_w - e.pageX;
var mouseMove = function(e) {
var prev = $('.draggable').prev();
var next = $('.draggable').next();
var total = prev.outerWidth() + next.outerWidth();
var totalPercentage = parseFloat(prev.css('flex')) + parseFloat(next.css('flex'));
var offset = prev.offset();
if(offset){
var leftPercentage = ((e.pageX - offset.left - drg_w / 2) / total) * totalPercentage;
var rightPercentage = totalPercentage - leftPercentage;
if (leftPercentage * 100 < opt.min || rightPercentage * 100 < opt.min) {
return;
}
prev.css('flex', leftPercentage.toString());
next.css('flex', rightPercentage.toString());
}
}
$drag.css('z-index', 1000).parent().on("mousemove", mouseMove).on("mouseup", function() {
$(this).off("mousemove", mouseMove).off("mouseup");
$('body').css('cursor', priorCursor);
$('.draggable').removeClass('draggable').css('z-index', z_idx);
});
e.preventDefault(); // disable selection
});
}
})(jQuery);
$('.handle').drags();
.flex-box {
display: flex;
width: 100%;
margin: 0;
height: 300px;
}
.flex-box .col {
border: 1px solid grey;
flex: 0.33;
padding: 12px;
overflow-y: auto;
overflow-x: hide;
}
.handle {
width: 1px;
text-align: center;
background: grey;
transition: all ease-in 0.1s;
}
.draggable {
background: grey;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="flex-box">
<div class="col">
<p>Pellentesque ...</p>
</div>
<div class="handle"></div>
<div class="col">
<p>Pellentesque ...</p>
</div>
</div>

If you'd like the handle to appear thinner try applying a negative value to the right "col" e.g. margin-left: -2px; so it overlaps the left "col" border on the left of it. I don't think you can make the width "appear" as 0.1px. Firefox is the only browser that renders such value. (https://css-tricks.com/forums/topic/0-1px-borders/)
.flex-box .col:last-child {
margin-left: -2px;
}
//raise handle layer to top
.handle {
.....
z-index: 9999;
}
Hope this helps...
*Edit:
This is the closest I could get to your request:
.flex-box {
display: flex;
width: 100%;
margin: 0;
height: 300px;
}
.flex-box .col {
border: 1px solid grey;
flex: 0.33;
padding: 12px;
overflow-y: auto;
overflow-x: hide;
}
.flex-box .col:last-child {
margin-left: -6px;
}
.handle {
width: 5px;
text-align: center;
transition: all ease-in 0.1s;
z-index: 999;
overflow: visible;
}
.handle-inner{
width: 5px;
height: 100%;
position: relative;
margin-left: -10px;
}
.draggable {
background: grey;
}
Jsbin :
https://jsbin.com/nupefekuhu/edit?html,css,js,output

Why is this animation not uniform?

I have a circle that expands and contracts, but there is a glitch at about 10px - 20px. Look carefully and you will see it "twitch".
It's as if the the circle has some alloted space and then "breaks" out of it.
https://jsfiddle.net/nj2u9bhy/4/
$A.Class.create('test',{
Name: 'Animator',
E: {
timer: '#timer'
},
init: function(){
this.animate();
},
animate: function(){
var s = this.E.timer.style;
var step = 2;
var state = 'up';
$A.setInterval(function(){
$A.log(step);
s.height = s.width = step + 'px';
s.borderRadius = step/2 + 'px';
if(state === 'up') {
step += 2;
}
if(state === 'down') {
step -= 2;
}
if(step === 2) {
state = 'up';
}
if(step === 42){
state = 'down';
}
}, 200);
}
});
I tried explicitly giving it space here:
https://jsfiddle.net/nj2u9bhy/5/
but same effect.

That is because it is an inline block element which vertical aligns to bottom so give it vertical align top solve the issue, or change it to a block element.
Updated fiddle
#timer{
position: relative;
top: 20px;
left: 20px;
display: inline-block;
width: 32px;
height: 32px;
vertical-align: top;
background-color: black;
border-radius: 16px;
}
And it can be easily done using CSS animation which will give a smoother transition (note that CSS animations are not supported in IE 9 and earlier)
#timer{
position: relative;
display: inline-block;
width: 0;
height: 0;
vertical-align: top;
background-color: black;
border-radius: 50%;
animation: zoom 3s linear infinite;
}
#keyframes zoom {
0% {width: 0; height: 0;}
50% {width: 32px; height: 32px;}
100% {width: 0; height: 0;}
}
<div id="timer">
</div>

A javascript slider array issue

Having a slider with images implementation from array, cant figure out why images dont want to be shown up from array, tryed to make a path but it didnt work.I want this code to reflect this image every time a push the button: fpoimg.com/100x100.
Im trying to fix it only with clean javascript.
Here is a sandbox
var slider = {
slides: ['100x100', '100x100', '100x100', '100x100'],
frame:0,
set:function(image){
path = path || 'http://fpoimg.com/';
document.getElementById('scr').style.backgroundImage ="url ("+path+ image+")";
},
init:function() {
this.set(this.slides[this.frame]);
},
left:function() {
this.frame--;
if(frame < 0) this.frame = this.slides.length - 1;
this.set(this.slides[this.frame]);
},
right:function() {
if(this.frame == this.slides.length) this.frame = 0;
this.set(this.slides[this.frame]);
}
};
window.onload = function() {
slider.init();
setInterval(function() {
slider.right();
},5000);
};
.scr {
margin:20px auto;
width: 600px;
height: 320px;
margin-top:20px;
background-color: white;
background-size:cover;
}
button {
position: absolute;
top: 150px;
width: 25px;
height: 150px;
font-size: 30px;
text-align: center;
background:none;
border:none;
}
.left {
left:25px;
}
.right {
right:25px;
}
<body>
<button class="left" onclick="slider.left();"><</button>
<div class="scr"></div>
<button class="right" onclick="slider.right();">></button>
</body>

On Line 6 of your Javascript, you have used getElementById('scr'). You have no element with an Id or scr, you needed to use getElementsByClassName('scr')
Your new code:
var slider = {
slides: ['100x100', '100x100', '100x100', '100x100'],
frame: 0,
set: function(image) {
path = path || 'http://fpoimg.com/';
document.getElementsByClassName('scr').style.backgroundImage = "url (" + path + image + ")";
},
init: function() {
this.set(this.slides[this.frame]);
},
left: function() {
this.frame--;
if (frame < 0) this.frame = this.slides.length - 1;
this.set(this.slides[this.frame]);
},
right: function() {
if (this.frame == this.slides.length) this.frame = 0;
this.set(this.slides[this.frame]);
}
};
window.onload = function() {
slider.init();
setInterval(function() {
slider.right();
}, 5000);
};
.scr {
margin: 20px auto;
width: 600px;
height: 320px;
margin-top: 20px;
background-color: white;
background-size: cover;
}
button {
position: absolute;
top: 150px;
width: 25px;
height: 150px;
font-size: 30px;
text-align: center;
background: none;
border: none;
}
.left {
left: 25px;
}
.right {
right: 25px;
}
<body>
<button class="left" onclick="slider.left();">
</button>
<div class="scr"></div>
<button class="right" onclick="slider.right();"></button>
</body>

It seems you've got getElementById() when you meant getElementsByClassName()