Track position of other element - javascript

I have an inner circle which tracks the position of my pointer, Now I want the circle color to change when it hovers on the h2 tag.
can anyone help??
I have tried searching few places but all were on "mouseover".
note: only when the inner-circle hovers on h2 not the mouse pointer, the inner circle's color should change.
<!doctype>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>Roll Over Eyes</title>
<style>
body
{
display: flex;
align-items: center;
justify-content: center;
height: 900px;
border: 1px solid black;
}
.main-circle
{
display: flex;
align-items: center;
justify-content: center;
position: relative;
height: 350px;
width: 350px;
border: 1px solid black;
border-radius: 10%;
}
#inner-circle
{
position: absolute;
height: 50px;
width: 50px;
border: 1px solid black;
border-radius: 50%;
background: #af4b23;
}
.message
{
display:none;
width: 75%;
}
</style>
</head>
<body>
<div class="main-circle">
<div id="inner-circle">
</div>
<h2 class="message">Your Outside the box</h2>
<h2 class="message">Your inside the box, now move the mouse to move the circle.</h2>
</div>
<script>
(function()
{
var ele= document.getElementById("inner-circle");
var hea= document.getElementsByClassName("message");
var body=document.body;
var height=body.clientHeight;
var width=body.clientWidth;
var move = function(event)
{
var x= event.clientX;
var y= event.clientY;
ele.style.left = ( x/width )*300;
ele.style.top = ( y/height )*300;
}
var display = function()
{
console.log("done");
hea[0].style.display="inline-block";
hea[1].style.display="none";
}
var hide = function()
{
console.log("done hiden");
hea[0].style.display="none";
hea[1].style.display="inline-block";
}
var effect = function()
{
ele.style.backgroundColor= "rgba(0,0,0,0.5)";
}
var deflt = function()
{
ele.style.backgroundColor= "#af4b23";
}
body.addEventListener("mousemove",function(){ move(event) },false);
body.addEventListener("mouseout",display,false);
body.addEventListener("mouseover",hide,false);
hea[1].addEventListener("mouseover",effect,false);
hea[1].addEventListener("mouseout",deflt,false);
})();
</script>
</body>
</html>

You can try this:
(function()
{
var ele= document.getElementById("inner-circle");
var hea= document.getElementsByClassName("message");
var body=document.body;
var height=body.clientHeight;
var width=body.clientWidth;
var move = function(event)
{
var x= event.clientX;
var y= event.clientY;
ele.style.left = ( x/width )*300;
ele.style.top = ( y/height )*300;
var e_pos = ele.getBoundingClientRect();
var h_pos = hea[1].getBoundingClientRect();
if(e_pos.bottom>=h_pos.top && e_pos.top<=h_pos.bottom && e_pos.right>=h_pos.left && e_pos.left<=h_pos.right){
ele.style.backgroundColor= "rgba(0,0,0,0.5)";
}else{
ele.style.backgroundColor= "#af4b23";
};
}
var display = function()
{
//console.log("done");
hea[0].style.display="inline-block";
hea[1].style.display="none";
}
var hide = function()
{
//console.log("done hiden");
hea[0].style.display="none";
hea[1].style.display="inline-block";
}
body.addEventListener("mousemove",function(){ move(event) },false);
body.addEventListener("mouseout",display,false);
body.addEventListener("mouseover",hide,false);
})();
in this answer i set background-color after setting left and top of ele. also i have removed two last eventListeners.
Look at the result online and change it yorself!
the border is added to detect h2's bounds.

Related

how can I let 3 div elements being resizable

what I want to see the result is 2 set of split view screen (or more), one is vertical, one is horizontal, but in the same javascript file. If it's possible to do in a single JavaScript file will be good
I tried to use this one to make it but it seems like not how to make that.
Here's the code I'm trying to make two div elements and its vertical
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>my app</title>
<style>
.container {
width: 202px;
height: 406px;
border: 1px solid black;
display: flex;
flex-direction: column;
}
.top {
width: 200px;
height: 200px;
border: 1px solid red;
min-height: 100px;
}
.resizer {
width: 202px;
height: 2px;
background-color: green;
}
.resizer:hover {
cursor: ns-resize;
}
.bottom {
width: 200px;
height: 200px;
border: 1px solid blue;
flex: 1 1 0%;
min-height: 100px;
}
</style>
</head>
<body>
<div class="container">
<div class="top" id="top">
something here
</div>
<div class="resizer" id="resizer"></div>
<div class="bottom" id="bottom">
something too
</div>
</div>
<script>
const resizer = document.getElementById('resizer');
const topSection = document.getElementById('top');
const bottomSection = document.getElementById('bottom');
let x = 0;
let y = 0;
let topSectionHeight = 0;
const mouseDownHandler = function (e) {
x = e.clientX;
y = e.clientY;
topSectionHeight = topSection.getBoundingClientRect().height;
document.addEventListener('mousemove', mouseMoveHandler);
document.addEventListener('mouseup', mouseUpHandler);
}
resizer.addEventListener('mousedown', mouseDownHandler);
const mouseMoveHandler = function (e) {
const dx = e.clientX - x;
const dy = e.clientY - y;
const newtopSectionHeight = ((topSectionHeight + dy) * 100) / resizer.parentNode.getBoundingClientRect().height;
topSection.style.height = `${newtopSectionHeight}%`;
resizer.style.cursor = 'ns-resize';
document.body.style.cursor = 'ns-resize';
topSection.style.userSelect = 'none';
topSection.style.pointerEvents = 'none';
bottomSection.style.userSelect = 'none';
bottomSection.style.pointerEvents = 'none';
}
const mouseUpHandler = function () {
resizer.style.removeProperty('cursor');
document.body.style.removeProperty('cursor');
actionBasic.style.removeProperty('user-select');
actionBasic.style.removeProperty('pointer-events');
bottomSection.style.removeProperty('user-select');
bottomSection.style.removeProperty('pointer-events');
document.removeEventListener('mousemove', mouseMoveHandler);
document.removeEventListener('mouseup', mouseUpHandler);
}
</script>
</body>
</html>
thank you for reading so far, please help me if you're able to! If any information is needed, please tell me below and I'll provide it as soon as possible.

Scroll buttons which bring person to down or up

I wanted to make two buttons, one was to move up the pages and show up when it exceeds 300px and the other was to be shown immediately and move the person who clicks to the bottom
I will add that I am new in programming
I made one button that takes a person down the page with Javascript and when I added the second it only displayed the last button
HTML
div id="TotopButton">^<span id="test"></span></div>
<div id="ToDownButton">^<span id="test2"></span></div>
<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>
CSS
#TotopButton
{
background-color: red;
color: black;
font-size: 35px;
padding:10px;
position:fixed;
bottom:15px;
right:15px;
height: 50px;
width: 150px;
border:1px solid black;
text-align: center;
display:none;
}
#TotopButton:hover
{
color:white;
cursor:pointer;
}
#ToDownButton
{
Background-color: blue;
color: black;
font-size:35px;
padding:10px;
position:fixed;
bottom:15px;
left:15px;
height:50px;
width:150px;
border: 1px solid black;
text-align: center;
display: none;
}
#ToDownButton:hover
{
color:white;
cursor:pointer;
}
Javascript
window.onload = function()
{
var TotopButton = document.getElementById("TotopButton");
var test = document.getElementById("test");
window.onscroll = function ()
{
var TotopButton = document.getElementById("TotopButton");
var yScrollAxis = window.pageYOffset;
var test = document.getElementById("test");
if (yScrollAxis > 300)
{
TotopButton.style.display = 'block'
}
else
{
TotopButton.style.display = 'none'
}
test.innerHTML = " " + window.pageYOffset
}
TotopButton.onclick = function()
{
window.scrollBy(0, -1 * window.pageYOffset);
}
};
//Secon button
window.onload = function()
{
var ToDownButton = document.getElementById("ToDownButton");
var test2 = document.getElementById("test2");
window.onscroll = function()
{
var ToDownButton = document.getElementById("ToDownButton");
var yScrollAxis = window.pageYOffset;
var test2 = document.getElementById("test2");
if (yScrollAxis > 50)
{
ToDownButton.style.display = 'block'
}
else
{
ToDownButton.style.display = 'none'
}
test2.innerHTML = " " + window.pageYOffset
}
ToDownButton.onclick = function()
{
window.scrollBy(0, 1000 * window.pageYOffset);
}
};
I use a similar button, and this is my setup for the top button you described:
HTML:
[code]
<section class="floating-button">
<div class="btn-wrapper">
<a class="primary-btn" id="floating-btn" href="#bottom-form">Apply Now</a>
</div>
</section>
[more code]
<section class="final-form" id="bottom-form">
[form here]
</section>
jQuery
$(document).scroll(function() {
var y = $(this).scrollTop();
if ((y > 490) && (y < 5698)) {
$('#floating-btn').css('visibility','visible').fadeIn();
} else {
$('#floating-btn').fadeOut();
}
});
For the above script, adjust 490 to where you want the button to fade in; you can check the right place adding console.log(y); you may also want to remove the y < 5698 if you don't want to fade out the button at the bottom of the page
SCSS
.floating-button {
z-index: 1;
position: fixed;
bottom: 34px;
width: 100%;
}

JavaScript script that only work on chrome, not working in Firefox. (Script for dragging div)

May be this is small question. But I couldn't found reason for this. I made a script to change a position of div by dragging it. the code is working fine with chrome browser. but when I trying to test it on Firefox it is not working.
var h = window.innerHeight|| document.documentElement.clientHeight || document.body.clientHeight;
window.onload = function () {
// ------------------lock the div with mouse pointer--------------
// variable dragged is for identified that you are click on the button or not
var dragged = false,
y = 0,pointerDis = 0,
boxElement = document.getElementById('drag'),
drgElement = document.getElementById('titl');
if (boxElement) {
// -----------------check whether the title div is holding by the mouse to lock it with mouse-------
drgElement.addEventListener('mousedown', function() {
dragged = true;
pointerDis = event.clientY - parseInt(window.getComputedStyle(boxElement, null).getPropertyValue("top"));
});
//------------------check whether the title div is released to drop the div-------------------------
document.addEventListener('mouseup', function() {
dragged = false;
});
document.addEventListener('mousemove', function () {
y = event.clientY;
if(dragged == true)
{
y = y -pointerDis;
if(y<0)
{
y = 0;
}
else if(y > window.innerHeight - boxElement.offsetHeight)
{
y = window.innerHeight - boxElement.offsetHeight;
}
boxElement.style.top = y + 'px';
}
});
}
};
.drg {
position: absolute;
top:0;
right: 0;
background: red;
border-top-left-radius: 45px;
border-bottom-left-radius: 45px;
}
#titl{
background: blue;
width: 50px;
text-align: center;
color: white;
font-size: 30px;
border-top-left-radius: 10px;
}
#det{
background: #f9c500;
width: 50px;
border-bottom-left-radius: 10px;
text-align: center;
}
<!DOCTYPE html>
<html>
<head>
<title>test 4</title>
</head>
<body>
<div class = "drg" id="drag">
<div id="titl" unselectable="on" onselectstart="return false;">....</div>
<div id="det">this is the details menu</div>
</div>
</body>
</html>
You can drag it through Y axis by click and drag from blue div. I don't know the reason or I couldn't find a way to fix this work on Firefox. Please help me!
You have to catch the (mousemove or mousedown) events as the input of wrapped functions
drgElement.addEventListener('mousedown', function(event)...
var h = window.innerHeight|| document.documentElement.clientHeight || document.body.clientHeight;
window.onload = function () {
// ------------------lock the div with mouse pointer--------------
// variable dragged is for identified that you are click on the button or not
var dragged = false,
y = 0,pointerDis = 0,
boxElement = document.getElementById('drag'),
drgElement = document.getElementById('titl');
if (boxElement) {
// -----------------check whether the title div is holding by the mouse to lock it with mouse-------
drgElement.addEventListener('mousedown', function(event) {
dragged = true;
pointerDis = event.clientY - parseInt(window.getComputedStyle(boxElement, null).getPropertyValue("top"));
});
//------------------check whether the title div is released to drop the div-------------------------
document.addEventListener('mouseup', function() {
dragged = false;
});
document.addEventListener('mousemove', function (event) {
y = event.clientY;
if(dragged == true)
{
y = y -pointerDis;
if(y<0)
{
y = 0;
}
else if(y > window.innerHeight - boxElement.offsetHeight)
{
y = window.innerHeight - boxElement.offsetHeight;
}
boxElement.style.top = y + 'px';
}
});
}
};
.drg {
position: absolute;
top:0;
right: 0;
background: red;
border-top-left-radius: 45px;
border-bottom-left-radius: 45px;
}
#titl{
background: blue;
width: 50px;
text-align: center;
color: white;
font-size: 30px;
border-top-left-radius: 10px;
}
#det{
background: #f9c500;
width: 50px;
border-bottom-left-radius: 10px;
text-align: center;
}
<!DOCTYPE html>
<html>
<head>
<title>test 4</title>
</head>
<body>
<div class = "drg" id="drag">
<div id="titl" unselectable="on" onselectstart="return false;">....</div>
<div id="det">this is the details menu</div>
</div>
</body>
</html>

I want to take a screenshot of a div using Html2canvas

I am using the Html2canvas in order to take a screenshot of a div and display it in a new window. Here is my javascript function
function capture() {
html2canvas(document.getElementById('screenshot'), {
onrendered: function(canvas) {
var img = canvas.toDataURL("image/png");
window.open(img);
}}
);
}
The problem with this code is that it captures only half of the div as the following image shows:
I changed the ID of the element to be captured to 'table' so that I can screenshot the table only. But it seems like the screenshot takes only half of the targeted div (in terms of height).
Now when I select the whole body:
function capture() {
html2canvas(document.body, {
onrendered: function(canvas) {
var img = canvas.toDataURL();
window.open(img);
}
});
the result is as follows:
I made a function that can adjust the output by 1 to 200% of the window height and width. To get your part working, I did the following:
....
html2canvas(document.body, {
onrendered: function(canvas) {
document.body.appendChild(canvas);
canvas.id = "ctx"
var ctx = document.getElementById('ctx');
var img = ctx.toDataURL("image/png");
window.open(img);
},....
Snippet
function hide(ele) {
var ele = document.querySelector(ele);
ele.style.display = 'none';
setTimeout(function() {
ele.style.display = 'block'
}, 1000);
return false;
}
function screenShot() {
var w = document.getElementById('w');
var h = document.getElementById('h');
var winW = window.outerWidth;
var winH = window.outerHeight;
var width = parseFloat(w.value * winW * .01);
var height = parseFloat(h.value * winH * .01);
html2canvas(document.body, {
onrendered: function(canvas) {
document.body.appendChild(canvas);
canvas.id = "ctx"
var ctx = document.getElementById('ctx');
var img = ctx.toDataURL("image/png");
window.open(img);
},
width: width,
height: height
});
return false;
}
main {
position: relative;
width: 100vw;
height: 100vh;
overflow: auto;
}
#panel {
position: absolute;
top: 0;
right: 0;
width: 200px;
height: 50px;
z-index: 1;
}
fieldset {
border-radius: 10px;
background: hsla(120, 100%, 50%, .5)
}
legend {
font: small-caps 700 20px/1.4'Source Code Pro';
}
section {
height: 33vh;
width: 100vw;
}
#sec1 {
background: red;
border: 1px solid blue;
}
#sec2 {
background: white;
border: 1px solid red;
}
#sec3 {
background: blue;
border: 1px solid white;
}
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>34571073</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/html2canvas/0.4.1/html2canvas.min.js"></script>
</head>
<body>
<header id="panel">
<fieldset>
<legend>HTML2Canvas</legend>
<label for="w">Width.:
<input id="w" type="number" min="1" max="200" />%</label>
<br/>
<label for="h">Height:
<input id="h" type="number" min="1" max="200" />%</label>
<br/>
<input type="button" value="Capture" onclick="hide('#panel'); screenShot();" />
</fieldset>
</header>
<main>
<section id="sec1"></section>
<section id="sec2"></section>
<section id="sec3"></section>
</main>
</body>
</html>

dragging behaving strangely

i created a red div.Using mouse cursor i can move it anywhere on the screen.it was fine and smooth.then i decided to add an extra orange div inside the red div.i made the positioning "absolute" for the red div and "relative" for the orange div.as soon as i put the orange div inside the red div the position changing is not smooth .if i click on the orange portion an then move it is smooth but if i clip the visible red portion and move my mouse it is not smooth.how to fix this..
JSfiddle
<html>
<head>
<style>
* {
margin: 0px;
padding: 0px;
}
#mydiv {
position: absolute;
width: 100px;
height: 100px;
background-color: red;
top: 300px;
left: 200px;
}
#mid {
position: relative;
width: 40px;
height: 40px;
margin: 30px 30px;
background-color: orange;
}
</style>
</head>
<body>
<div id="mydiv">
<div id="mid"></div>
</div>
<script>
var gotit = false;
var i, p, q;
var divs = document.getElementById("mydiv");
divs.addEventListener('mousedown', clipit, false);
divs.addEventListener('mousemove', function (e) {
moveit(e);
}, false);
divs.addEventListener('mouseup', unclip, false);
divs.addEventListener('mouseout', unclip, false);
function clipit() {
i = divs.offsetLeft;
gotit = true;
p = e.clientX;
q = e.clientY;
}
function moveit(e) {
if (gotit == true) {
if (e.clientX > divs.offsetLeft) {
divs.style.left = divs.offsetLeft + (e.clientX - p) + "px";
p = e.clientX;
}
if (e.clientY > divs.offsetTop) {
divs.style.top = divs.offsetTop + (e.clientY - q) + "px";
q = e.clientY;
}
}
}
function unclip() {
gotit = false;
}
</script>
</body>
</html>
You forgot to put the event in clipit:
function clipit(e) {}
Remember to always check your console log:
Uncaught ReferenceError: e is not defined
fix

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