Develop Reference

How to use javascript to open the modal when connecting the API so that the user can see the animation effect?

let btn = document.querySelector('.btn');
let modal = document.querySelector('.modal');
let wrap = document.querySelector('.wrap');
let photo = document.querySelector('.photo');
let svg = document.querySelector('svg');
let data = [{
title: "dog",
age: 10,
rank: [{
rankStatus: 'behind'
},
{
rankStatus: 'generally',
rankNum: '20'
},
{
rankStatus: 'excellent'
}
]
}]
let rankStatusArr = data[0].rank.map(item => item.rankStatus);
let rankNum = data[0].rank.find(item => item.rankNum).rankNum;
btn.addEventListener('click', function(e) {
svg.style.display = "block"
axios.get("https://dog.ceo/api/breeds/image/random")
.then((response) => {
// 设置处理程序以在加载图像后显示图像
photo.addEventListener('load', () => {
svg.style.display = "none"
modal.style.display = "flex";
});
// 添加“加载”处理程序后设置图像源
photo.src = response.data.message;
})
.catch((error) => console.log(error));
// 排名狀態在 popup 打開後再載入動畫
let progress = rankNum;
let dot = document.getElementById("dot");
var dotPosition = (progress / 30) * 100;
dot.style.left = dotPosition + "%";
let txt = document.querySelectorAll('.txt');
for (let i = 0; i < txt.length; i++) {
txt[i].innerHTML = rankStatusArr[i];
}
})
wrap.addEventListener('click', function(e) {
e.stopPropagation();
})
modal.addEventListener('click', function() {
modal.style.display = "none"
})
.modal {
width: 100%;
height: 100vh;
background-color: rgba(0, 0, 0, 0.5);
position: fixed;
top: 0;
right: 0;
bottom: 0;
left: 0;
display: none;
justify-content: center;
align-items: center;
}
.wrap {
width: 300px;
height: 300px;
padding: 20px;
background-color: #fff;
display: flex;
justify-content: center;
align-items: center;
border-radius: 20px;
flex-direction: column;
}
.wrap .photo {
width: 100%;
height: 200px;
object-fit: cover;
margin-bottom: 20px;
}
.wrap #progress-bar-container {
width: 100%;
height: 5px;
background-color: #fff;
position: relative;
display: flex;
flex-wrap: nowrap;
}
.wrap #progress-bar-container .progress-bar {
width: 33.33%;
height: 5px;
background-color: #ccc;
margin-right: 8px;
border-radius: 20px;
}
.wrap #progress-bar-container .progress-bar .txt {
text-align: center;
color: #ccc;
margin-top: 20px;
}
#progress-bar-1 {
background-color: #ddd;
}
#progress-bar-2 {
background-color: #ddd;
}
#progress-bar-3 {
background-color: #ddd;
margin-right: 0;
}
#dot {
width: 10px;
height: 10px;
border-radius: 50%;
background-color: #333;
position: absolute;
top: -3px;
left: 0;
transition: left 0.2s ease-out;
}
svg {
display: none;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
svg .load {
stroke-dasharray: 0 500;
animation: rot 1s linear infinite;
}
#keyframes rot {
100% {
stroke-dasharray: 500 500;
}
}
.green {
color: yellowgreen;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/axios/1.3.2/axios.min.js"></script>
<button class='btn'>open</button>
<div class="modal">
<div class="wrap">
<img class="photo" src="" alt="photo">
<div id="progress-bar-container">
<div class="progress-bar" id="progress-bar-1">
<p class="txt">1</p>
</div>
<div class="progress-bar" id="progress-bar-2">
<p class="txt">2</p>
</div>
<div class="progress-bar" id="progress-bar-3">
<p class="txt">3</p>
</div>
<div id="dot"></div>
</div>
</div>
</div>
<!-- load -->
<svg width="240px" height="240px" version="1.1" xmlns="http://www.w3.org/2000/svg">
<circle cx="110" cy="110" r="90" stroke-width="10" stroke="gainsboro" fill="none"></circle>
<circle cx="110" cy="110" r="90" stroke-width="10" stroke="darkturquoise" fill="none" class="load"></circle>
</svg>
I encountered a little difficulty in the following requirements. The first difficulty is that I hope that the popup will not be opened until the picture is fully loaded! But I hope that when the popup is opened, the dot can add animation and run to the specified progress position, but it seems that the animation I want to appear has already run before it is opened, and the user will not see the moving animation effect. The second problem is that I want to add a green color to the rankStatus font on the screen if the rankNum is included in the rankStatus object, but I am a novice in programming and don't know which section to add to achieve this. Hope to get your help, thank you.

To solve the first difficulty, you can add an event listener to the photo element which will be triggered when the image is loaded. Inside this event listener, you can set the display of the modal to 'flex' and the display of the svg element to 'none'.
To solve the second difficulty, you can use an if statement inside your rankStatusArr loop. This statement should check if the rankNum is included in the rankStatus object and if so, add a class to the txt element which adds the green color style.
let txt = document.querySelectorAll('.txt');
for (let i = 0; i < txt.length; i++) {
txt[i].innerHTML = rankStatusArr[i];
if (rankNum === rankStatusArr[i]) {
txt[i].classList.add('green');
}
}

is there a way to make a background scroll down while some content stay in the middle at all time?

I'm trying to do something like (in js, html, sass) :
when I scroll the page down my layers (ground, sky, space, ...) go down
my content (that will be a rocket going in the sky) stay in the middle of the screen and will move to the sides like if it were to be flying (that will be for later)
some elements will move on the layers (like asteroids going from right to left or something) (for later)
So here are some ideas of code I tried but this seem odd and do not work as intended; as you can see, the layers are scrolling as intended, but they are not all showing for whatever reason, they seem to fill all the page size but they shouldn't and i'm going round and round about this on the internet and no one seem to have done something like this.
// Functions
detectPageVerticalPosition = () => {
pageVerticalPosition = pageYOffset;
};
getDivs = () => {
for (
let div = document.getElementsByTagName("div"), i = 0; i < div.length; i++
) {
div[i].getAttribute("class") == "layer-vertical" &&
layerVerticalArray.push(div[i]);
}
console.log("layerVerticalArray: ", layerVerticalArray);
};
moveLayers = () => {
for (let i = 0; i < layerVerticalArray.length; i++) {
layerVerticalArray[i].style.bottom = -1 * pageVerticalPosition + "px";
}
};
// End Functions
// Variables
var pageVerticalPosition = 0,
layerVerticalArray = new Array();
// End Variables
// Events
window.onload = e => {
getDivs();
// console.log(layerVerticalArray);
};
window.onscroll = e => {
detectPageVerticalPosition();
moveLayers();
};
// End Events
body {
margin: 0;
}
#page {
position: relative;
height: 20000px;
width: 100%;
}
#rocket-container {
position: fixed;
width: 100%;
height: 100%;
top: 0;
left: 0;
}
#rocket-container #rocket {
position: absolute;
width: 100px;
height: 100px;
left: calc(50% - 50px);
top: calc(50% - 50px);
}
#background-container {
position: fixed;
height: 100%;
width: 100%;
background-color: red;
overflow: hidden;
}
#background-container .layer-vertical {
width: 100%;
height: 3500px;
}
#background-container #layer-vertical-1 {
position: absolute;
background-color: blue;
}
#background-container #layer-vertical-1 #cloud-1 {
outline-style: dashed;
right: 0px;
}
#background-container #layer-vertical-1 #cloud-2 {
outline-style: dotted;
bottom: 0px;
}
#background-container #layer-vertical-2 {
background-color: green;
}
#background-container #layer-vertical-3 {
background-color: purple;
}
.cloud {
position: absolute;
width: 180px;
height: 120px;
background-image: url(../images/cloud.png);
}
<div class="page">
<div class="background-container">
<div class="layer-vertical" id="layer-vertical-1">
Layer 1
<div class="cloud" id="cloud-1"></div>
<div class="cloud" id="cloud-2"></div>
</div>
<div class="layer-vertical" id="layer-vertical-2">
Layer 2
</div>
<div class="layer-vertical" id="layer-vertical-3">
Layer 3
</div>
</div>
<div id="rocket-container">
<div id="rocket">STAY MIDDLE</div>
</div>
</div>
[1]: https://via.placeholder.com/180/120

So, here's what i found in order to fix this (jsfiddle: http://jsfiddle.net/kjrte2sd/2/)
i used some jquery to make the background-container scroll down as intended instead of each elements scrolling down by himself.
now the page div is gone and the body handle the sizing of the whole thing.
i guess the answer was simpler than i expected it to be.
var winHeight = $(window).innerHeight();
$(document).ready(() => {
$(".layer-vertical").height(winHeight);
$("body").height(winHeight * $(".layer-vertical").length);
});
window.addEventListener("resize", e => {
$(".layer-vertical").height($(window).innerHeight());
});
$(window).on("scroll", () => {
$("#background-container").css("bottom", $(window).scrollTop() * -1);
});
body {
margin: 0;
padding: 0;
}
#rocket-container {
position: fixed;
width: 100%;
height: 100%;
top: 0;
left: 0;
}
#rocket-container #rocket {
position: absolute;
width: 100px;
height: 100px;
left: calc(50% - 50px);
top: calc(50% - 50px);
}
#background-container {
position: fixed;
bottom: 0;
left: 0;
width: 100%;
}
#background-container .layer-vertical {
width: 100%;
}
#background-container .layer-vertical h1 {
width: 100px;
position: relative;
display: block;
margin: 0 auto;
text-align: center;
top: 50%;
}
#background-container #layer-vertical-1 {
background-color: green;
}
#background-container #layer-vertical-2 {
background-color: red;
}
#background-container #layer-vertical-3 {
background-color: white;
}
#background-container #layer-vertical-4 {
background-color: pink;
}
#background-container #layer-vertical-5 {
background-color: yellow;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="background-container">
<div class="layer-vertical" id="layer-vertical-5">
<h1>5</h1>
</div>
<div class="layer-vertical" id="layer-vertical-4">
<h1>4</h1>
</div>
<div class="layer-vertical" id="layer-vertical-3">
<h1>3</h1>
</div>
<div class="layer-vertical" id="layer-vertical-2">
<h1>2</h1>
</div>
<div class="layer-vertical" id="layer-vertical-1">
<h1>1</h1>
</div>
</div>
<div id="rocket-container">
<div id="rocket">STAY MIDDLE</div>
</div>

css transition effect for divs

I've the below Code.
function showOrHideDiv() {
var e = document.getElementById('pageRightMenu');
var l = document.getElementById('pageLeftMenu');
if (e.style.display == 'block') {
e.style.display = 'none';
l.style.width = '99%';
l.style.transition = "all 2s"; // Standard syntax
l.style.WebkitTransition = "all 2s"
}
else {
l.style.width = '60%';
l.style.transition = "width 2s"; // Standard syntax
l.style.WebkitTransition = "width 2s";
e.style.display = 'block';
}
}
html,
body {
position: fixed;
padding: 0px;
margin: 0px;
width: 100%;
height: 100%;
}
.blended_grid {
display: block;
width: 100%;
overflow: auto;
width: 100%;
height: 100%;
/* Webkit 35: */
-webkit-animation: fadeIn 1s linear;
/* Firefox 28, Opera 22, IE 11: */
animation: fadeIn 1s linear;
}
.pageHeader {
background-color: rgba(0, 0, 0, 0.5);
float: left;
clear: none;
height: 20%;
width: 100%;
border: 1px solid black;
}
.pageLeftMenu {
background-color: rgba(0, 0, 0, 0.5);
float: left;
clear: none;
height: 80%;
width: 100%;
border: 1px solid black;
}
.pageRightMenu {
background-color: rgba(0, 0, 0, 0.5);
float: right;
clear: none;
height: 80%;
width: 39%;
border: 1px solid black;
}
<div class="blended_grid">
<div class="pageLeftMenu" id="pageLeftMenu">
<input type="button" value="Click Me!" onClick="showOrHideDiv()" />
</div>
<div class="pageRightMenu" id="pageRightMenu" style="display: none">
This a textF
</div>
</div>
Here as part of my requirements, I've created 2 divs, and in left div there is a button, when I click, the other div will either appear or disappear, and everything is fine, but I want to have a css transition effect when I hide or show the div.
Update:
I'm able to do the transition. I've tried a js function that is doing what I actually require (updated in this question), but when you show the 2nd div, the div appears first below and then beside the other div. How can I fix it, I mean, after the entire transition, the 2nd div should be visible
please run the code snippet to get a better understanding of my issue.
please let me know how can I do this.
Thanks

I recommend using the jQuery fadeOut() function, which animates the opacity to zero and then sets the "display" property to "none" when the animation is finished:
function showOrHideDiv() {
var $e = $(document.getElementById('pageRightMenu'));
var l = document.getElementById('pageLeftMenu');
if ( $e.is(":visible") ) { //safer comparison in case you change things later
l.style.width = '100%';
$e.fadeOut(500); //fade out, taking 500ms
} else {
l.style.width = '60%';
$e.fadeIn(500); //fade in, taking 500ms
}
}

Here's how you do it:
Make this containing element a flexbox using display: flex
Give the pageLeftMenu a "fixed" width using flex: 0 0 auto, which means the width will be taken from the width property (and therefore animated)
Give the pageRightMenu a "flexible" width using flex: 1 1 0, which means it will take up all the remaining space in the parent not used by pageLeftMenu.
The example below shows the effect. Check out this guide for more on flexbox: https://scotch.io/tutorials/a-visual-guide-to-css3-flexbox-properties
function showOrHideDiv() {
var e = document.getElementById('pageRightMenu');
var l = document.getElementById('pageLeftMenu');
if (e.style.display == 'block') {
e.style.display = 'none';
l.style.width = '99%';
l.style.transition = "all 2s"; // Standard syntax
l.style.WebkitTransition = "all 2s"
}
else {
l.style.width = '60%';
l.style.transition = "width 2s"; // Standard syntax
l.style.WebkitTransition = "width 2s";
e.style.display = 'block';
}
}
html,
body {
position: fixed;
padding: 0px;
margin: 0px;
width: 100%;
height: 100%;
}
.blended_grid {
display: flex; //instead of display: block
width: 100%;
overflow: auto;
width: 100%;
height: 100%;
/* Webkit 35: */
-webkit-animation: fadeIn 1s linear;
/* Firefox 28, Opera 22, IE 11: */
animation: fadeIn 1s linear;
}
.pageHeader {
background-color: rgba(0, 0, 0, 0.5);
float: left;
clear: none;
height: 20%;
width: 100%;
border: 1px solid black;
}
.pageLeftMenu {
background-color: rgba(0, 0, 0, 0.5);
float: left;
clear: none;
height: 80%;
width: 100%;
flex: 0 0 auto; //use the width property to determine width
border: 1px solid black;
}
.pageRightMenu {
background-color: rgba(0, 0, 0, 0.5);
float: right;
clear: none;
height: 80%;
flex: 1 1 0; //use up all remaining space
border: 1px solid black;
}
<div class="blended_grid">
<div class="pageLeftMenu" id="pageLeftMenu">
<input type="button" value="Click Me!" onClick="showOrHideDiv()" />
</div>
<div class="pageRightMenu" id="pageRightMenu" style="display: none">
This a textF
</div>
</div>

3 Divs side by side overflow one another

I've been chasing around this problem for hours, here's the code:
<!DOCTYPE html>
<html>
<head>
<style>
html, body{
height: 100%;
max-height: 100%;
overflow:hidden;
}
.controls{
display: table;
height: 10%;
margin-top: 1%;
width: 100%;
}
#w1 {
width:25%;
}
#can
float: left;
padding: 0;
margin: 0;
top: 0;
}
#canTwo{
float: left;
padding: 0;
margin: 0;
top: 0;
}
textarea {
outline: none;
-webkit-box-shadow: none;
-moz-box-shadow: none;
box-shadow: none;
font-size: 1.25vw;
height: 100%;
width: 100%;
}
#w2{
width:50%;
}
#w3{
width:25%;
}
.controlbuttons {
display: table-cell;
height: 100%;
}
</style>
</head>
<body>
<div class="controls">
<div class="controlbuttons" id="w1"><canvas id = "can" width = "0" height = "0"></div>
<div class="controlbuttons" id="w2"><textarea rows="3" cols="50"></textarea></div>
<div class="controlbuttons" id="w3"><canvas id = "canTwo" width = "0" height = "0"></div>
</div>
</div>
<script>
document.addEventListener("DOMContentLoaded", function(event) {
fitToContainer();
});
var canvas = document.getElementById("can"),
ctx = canvas.getContext('2d'),
canvasTwo = document.getElementById("canTwo"),
ctxTwo = canvasTwo.getContext('2d');
function fitToContainer(){
var control = document.getElementsByClassName("controlbuttons")[0];
var h = control.clientHeight;
var w = control.clientWidth;
canvas.height = h;
canvas.width = w;
canvasTwo.height = h;
canvasTwo.width = w;
ctx.fillStyle = "green";
ctx.fillRect(0, 0, 5000, 5000);
ctxTwo.fillStyle = "green";
ctxTwo.fillRect(0, 0, 5000, 5000);
}
</script>
</body>
</html>
jsfiddle:
https://jsfiddle.net/ca3uw837/
Basically I have one textarea and it's width takes 50% of the page and it is exactly in the middle, there are two
canvases to it's side which take 25% width.
I am trying to get them to align perfectly(same height, exactly one next to the other) but here is how it looks on my pc:
What am I supposed to do? use flexbox? I am not sure I know how to achieve it as canvases are very tricky with their sizing technique. Thank you so much for your time.

Apply flexbox to .controls to align the child elements. Also apply box-sizing: border-box to textbox as the default padding adds with the 100% height of the textbox. border-box will make the padding inclusive of height.
document.addEventListener("DOMContentLoaded", function(event) {
fitToContainer();
});
var canvas = document.getElementById("can"),
ctx = canvas.getContext('2d'),
canvasTwo = document.getElementById("canTwo"),
ctxTwo = canvasTwo.getContext('2d');
function fitToContainer() {
var control = document.getElementsByClassName("controlbuttons")[0];
var h = control.clientHeight;
var w = control.clientWidth;
canvas.height = h;
canvas.width = w;
canvasTwo.height = h;
canvasTwo.width = w;
ctx.fillStyle = "green";
ctx.fillRect(0, 0, 5000, 5000);
ctxTwo.fillStyle = "green";
ctxTwo.fillRect(0, 0, 5000, 5000);
}
html,
body {
height: 100%;
max-height: 100%;
overflow: hidden;
}
.controls {
display: flex;
height: 10%;
margin-top: 1%;
width: 100%;
}
#w1 {
width: 25%;
}
#can float: left;
padding: 0;
margin: 0;
top: 0;
}
#canTwo {
float: left;
padding: 0;
margin: 0;
top: 0;
}
textarea {
outline: none;
-webkit-box-shadow: none;
-moz-box-shadow: none;
box-shadow: none;
font-size: 1.25vw;
height: 100%;
width: 100%;
box-sizing: border-box;
}
#w2 {
width: 50%;
}
#w3 {
width: 25%;
}
.controlbuttons {
height: 100%;
}
<div class="controls">
<div class="controlbuttons" id="w1"><canvas id="can" width="0" height="0"></div>
<div class="controlbuttons" id="w2"><textarea rows="3" cols="50"></textarea></div>
<div class="controlbuttons" id="w3"><canvas id = "canTwo" width = "0" height = "0"></div>
</div>

To align table-cell items to the top you should use: vertical-align: top. Both canvas are missing height and width property, set them to 100%. Add box-sizing: border-box to the textarea:
box-sizing: border-box
The width and height properties (and min/max properties) includes
content, padding and border, but not the margin
So:
textarea {
/** ... rest of styles ...*/
margin: 0;
box-sizing: border-box;
float: left;
}
.controlbuttons { vertical-align: top; } /* Align items to the top */
.controlbuttons canvas { height: 100%; width: 100%; }
Demo: (Tested in firefox 53.0.2 & Chrome 56.0.2924.87)
document.addEventListener("DOMContentLoaded", function(event) {
fitToContainer();
});
var canvas = document.getElementById("can"),
ctx = canvas.getContext('2d'),
canvasTwo = document.getElementById("canTwo"),
ctxTwo = canvasTwo.getContext('2d');
function fitToContainer() {
var control = document.getElementsByClassName("controlbuttons")[0];
var h = control.clientHeight;
var w = control.clientWidth;
canvas.height = h;
canvas.width = w;
canvasTwo.height = h;
canvasTwo.width = w;
ctx.fillStyle = "green";
ctx.fillRect(0, 0, 5000, 5000);
ctxTwo.fillStyle = "green";
ctxTwo.fillRect(0, 0, 5000, 5000);
}
html,
body {
height: 100%;
max-height: 100%;
overflow: hidden;
}
.controls {
display: table;
height: 10%;
margin-top: 1%;
width: 100%;
}
#w1 {
width: 25%;
}
textarea {
outline: none;
-webkit-box-shadow: none;
-moz-box-shadow: none;
box-shadow: none;
font-size: 1.25vw;
height: 100%;
width: 100%;
margin: 0;
box-sizing: border-box;
float: left;
}
#w2 {
width: 50%;
}
#w3 {
width: 25%;
}
.controlbuttons {
display: table-cell;
height: 100%;
vertical-align: top;
}
.controlbuttons canvas {
float: left;
padding: 0;
margin: 0;
top: 0;
height: 100%;
width: 100%;
}
<!DOCTYPE html>
<html>
<body>
<div class="controls">
<div class="controlbuttons" id="w1">
<canvas id="can" width="0" height="0"></canvas>
</div>
<div class="controlbuttons" id="w2">
<textarea rows="3" cols="50"></textarea>
</div>
<div class="controlbuttons" id="w3">
<canvas id = "canTwo" width = "0" height = "0"></canvas>
</div>
</div>
</body>
</html>

Draggable split-pane windows in flexbox can't get past child elements [duplicate]

This question already has answers here:
Why don't flex items shrink past content size?
(5 answers)
Closed 3 years ago.
I implemented my own split-pane with HTML/JS/CSS Flexbox.
I'm having trouble with the splitter in the following case- one of the panels has a fixed size (in px), and the other one is set to grow (flex-grow: 1).
In case the other panel has children with size, it won't scroll to the end. It gets stuck at the size of the children.
Can this be fixed with CSS on the split-pane panels but not on the children?
It's very important for me to use flex as I want to maintain responsiveness of my application, and want to avoid fixed sizes wherever I can.
This is a JSFiddle sample
of my question.
Code snippet given below. Thanks!
function startDrag() {
glass.style = 'display: block;';
glass.addEventListener('mousemove', drag, false);
}
function endDrag() {
glass.removeEventListener('mousemove', drag, false);
glass.style = '';
}
function drag(event) {
var splitter = getSplitter();
var panel = document.getElementById('c2');
var currentWidth = panel.offsetWidth;
var currentLeft = panel.offsetLeft;
panel.style.width = (currentWidth - (event.clientX - currentLeft)) + "px";
}
function getSplitter() {
return document.getElementById('splitter');
}
var con = document.getElementById('container');
var splitter = document.createElement('div');
var glass = document.getElementById('glass');
splitter.className = 'splitter';
splitter.id = 'splitter';
con.insertBefore(splitter, con.lastElementChild);
splitter.addEventListener('mousedown', startDrag, false);
glass.addEventListener('mouseup', endDrag, false);
.container {
display: flex;
border: 1px solid;
width: 500px;
height: 300px;
position: absolute;
}
.c1 {
background-color: blue;
flex: 1;
height: 100%;
}
.c2 {
background-color: green;
width: 150px;
}
.splitter {
width: 20px;
cursor: col-resize;
}
.glass {
height: 100%;
width: 100%;
cursor: col-resize;
display: none;
position: absolute;
}
.grandchild {
background-color: red;
width: 50px;
height: 50px;
}
<div id="container" class="container">
<div id="glass" class="glass"></div>
<div class="c1">
<div class="grandchild"></div>
</div>
<div id="c2" class="c2"></div>
</div>

In case the other panel has children with size, it won't scroll to the end. It gets stuck at the size of the children.
This is because an initial setting of a flex container is min-width: auto on the flex items. This means that a flex item, by default, cannot be smaller than the size of its content.
Can this be fixed with CSS on the split-pane panels but not on the children?
Yes. Override the default with min-width: 0 or with any overflow other than visible:
.c1 {
background-color: blue;
flex: 1;
height: 100%;
overflow: hidden; /* or min-width: 0 */
}
revised fiddle
function startDrag() {
glass.style = 'display: block;';
glass.addEventListener('mousemove', drag, false);
}
function endDrag() {
glass.removeEventListener('mousemove', drag, false);
glass.style = '';
}
function drag(event) {
var splitter = getSplitter();
var panel = document.getElementById('c2');
var currentWidth = panel.offsetWidth;
var currentLeft = panel.offsetLeft;
panel.style.width = (currentWidth - (event.clientX - currentLeft)) + "px";
}
function getSplitter() {
return document.getElementById('splitter');
}
var con = document.getElementById('container');
var splitter = document.createElement('div');
var glass = document.getElementById('glass');
splitter.className = 'splitter';
splitter.id = 'splitter';
con.insertBefore(splitter, con.lastElementChild);
splitter.addEventListener('mousedown', startDrag, false);
glass.addEventListener('mouseup', endDrag, false);
.container {
display: flex;
border: 1px solid;
width: 500px;
height: 300px;
position: absolute;
}
.c1 {
background-color: blue;
flex: 1;
height: 100%;
overflow: hidden;
}
.c2 {
background-color: green;
width: 150px;
}
.splitter {
width: 20px;
cursor: col-resize;
}
.glass {
height: 100%;
width: 100%;
cursor: col-resize;
display: none;
position: absolute;
}
.grandchild {
background-color: red;
width: 50px;
height: 50px;
}
<div id="container" class="container">
<div id="glass" class="glass"></div>
<div class="c1">
<div class="grandchild"></div>
</div>
<div id="c2" class="c2"></div>
</div>

It gets stuck at the size of the children
This is expected behavior when using a flexbox. I guess if you want to scroll to the end then you can use position: absolute for the grandchild relative to c1:
.grandchild {
background-color: red;
width: 50px;
height: 50px;
position: absolute;
top: 0;
left: 0;
}
Give overflow: hidden to c1 too:
.c1 {
background-color: blue;
flex: 1;
height: 100%;
position: relative;
overflow: hidden;
}
Cheers!
function startDrag() {
glass.style = 'display: block;';
glass.addEventListener('mousemove', drag, false);
}
function endDrag() {
glass.removeEventListener('mousemove', drag, false);
glass.style = '';
}
function drag(event) {
var splitter = getSplitter();
var panel = document.getElementById('c2');
var currentWidth = panel.offsetWidth;
var currentLeft = panel.offsetLeft;
panel.style.width = (currentWidth - (event.clientX - currentLeft)) + "px";
}
function getSplitter() {
return document.getElementById('splitter');
}
var con = document.getElementById('container');
var splitter = document.createElement('div');
var glass = document.getElementById('glass');
splitter.className = 'splitter';
splitter.id = 'splitter';
con.insertBefore(splitter, con.lastElementChild);
splitter.addEventListener('mousedown', startDrag, false);
glass.addEventListener('mouseup', endDrag, false);
.container {
display: flex;
border: 1px solid;
width: 500px;
height: 300px;
position: absolute;
}
.c1 {
background-color: blue;
flex: 1;
height: 100%;
position: relative;
overflow: hidden;
}
.c2 {
background-color: green;
width: 150px;
}
.splitter {
width: 20px;
cursor: col-resize;
}
.glass {
height: 100%;
width: 100%;
cursor: col-resize;
display: none;
position: absolute;
}
.grandchild {
background-color: red;
width: 50px;
height: 50px;
position: absolute;
top: 0;
left: 0;
}
<div id="container" class="container">
<div id="glass" class="glass"></div>
<div class="c1">
<div class="grandchild"></div>
</div>
<div id="c2" class="c2"></div>
</div>
Solution:
So I guess your strategy should be to use an absolute grandchild that fills the whole side-panel, and then put the content inside like:
<div class="grandchild">
<div class="content"></div>
</div>
and change these styles:
.grandchild {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
}
.grandchild .content{
background-color: red;
width: 50px;
height: 50px;
}
Example below:
function startDrag() {
glass.style = 'display: block;';
glass.addEventListener('mousemove', drag, false);
}
function endDrag() {
glass.removeEventListener('mousemove', drag, false);
glass.style = '';
}
function drag(event) {
var splitter = getSplitter();
var panel = document.getElementById('c2');
var currentWidth = panel.offsetWidth;
var currentLeft = panel.offsetLeft;
panel.style.width = (currentWidth - (event.clientX - currentLeft)) + "px";
}
function getSplitter() {
return document.getElementById('splitter');
}
var con = document.getElementById('container');
var splitter = document.createElement('div');
var glass = document.getElementById('glass');
splitter.className = 'splitter';
splitter.id = 'splitter';
con.insertBefore(splitter, con.lastElementChild);
splitter.addEventListener('mousedown', startDrag, false);
glass.addEventListener('mouseup', endDrag, false);
.container {
display: flex;
border: 1px solid;
width: 500px;
height: 300px;
position: absolute;
}
.c1 {
background-color: blue;
flex: 1;
height: 100%;
position: relative;
overflow: hidden;
}
.c2 {
background-color: green;
width: 150px;
}
.splitter {
width: 20px;
cursor: col-resize;
}
.glass {
height: 100%;
width: 100%;
cursor: col-resize;
display: none;
position: absolute;
}
.grandchild {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
}
.grandchild .content{
background-color: red;
width: 50px;
height: 50px;
}
<div id="container" class="container">
<div id="glass" class="glass"></div>
<div class="c1">
<div class="grandchild">
<div class="content"></div>
</div>
</div>
<div id="c2" class="c2"></div>
</div>