Display several sequences of events with possible line break in middle [closed] - angularjs

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I am a HTML / CSS newbie.
I need to do something like this:
My web page is receiving sequences of events dynamically and I would like to visualize them on in the page.
I would like one sequence of events to be in a box, with lots of slots, and each slot has the event id.
So if I have several sequences, then I will have several such boxes.
However, the length of a sequence is dynamic. And the web page's window might be adjusted by the users, so even for a sequence, if it is too long or the window is too narrow, I have to break the box into several lines.
the above is my drawing of the design.
The A, B, etc, are the sequence title, then the numbers are the ids.
ideally, the space of all events / sequences should be as compact as possible.
And if a box has to change line, then it should be half-borded to indicate the continuous.
How can I do that? using CSS 3?
And also the framework I am using is AngularJS to control the data / UI binding, even if I manage to handle this case, how to dynamically bind the data to adjust this requirement?
Thanks

Doing this in CSS is tricky, because you want a border between elements only if those elements are on the same line. CSS doesn't know anything about wrapping.
I've solved the problem by:
Adding a left border on all boxes
Adding a right border on the last box only.
Adding a -1px left margin on all boxes except the first.
Placing the boxes in a container with overflow: hidden.
Having the right border on the last box only solves the right-hand issue.
The -1px left margin solves the left-hand issue.
Snippet:
.sequences {
overflow: hidden;
}
.sequence > div {
border: 1px solid black;
border-right: none;
height: 50px;
float: left;
margin-bottom: 10px;
}
.sequence > div:last-of-type {
border-right: 1px solid black;
margin-right: 20px;
}
.sequence > div:not(:first-of-type) {
margin-left: -1px;
}
.yellow div {background: yellow; width: 100px;}
.green div {background: lightgreen; width: 80px;}
.blue div {background: lightblue; width: 120px;}
<div class="sequences">
<div class="sequence yellow">
<div></div><div></div><div></div><div></div><div></div>
<div></div><div></div><div></div><div></div><div></div>
</div>
<div class="sequence green">
<div></div><div></div><div></div><div></div><div></div><div></div><div></div>
<div></div><div></div><div></div><div></div><div></div><div></div><div></div>
</div>
<div class="sequence blue">
<div></div><div></div><div></div>
<div></div><div></div><div></div>
</div>
</div>

You can solve this using CSS by doing something like this.
I've given each sequence element a top, left and bottom border. T
This will give the illusion of a right border when the elements are floated next to eachother but when they're the last on that line it will brake of as per your request.
I also added a right border to the last div element and the last div in each section.
Fiddle
div{
width: 100px;
height: 50px;
line-height: 50px;
text-align: center;
float:left;
background: #eee;
border: 1px solid #000;
border-width: 1px 0 1px 1px;
margin-bottom: 10px;
}
div.last{margin-right: 5px;}
div.last,
div:last-child{border-right-width: 1px;}
<div class="seq-1">1</div>
<div class="seq-1">2</div>
<div class="seq-1">3</div>
<div class="seq-1">4</div>
<div class="seq-1 last">5</div>
<div class="seq-2">1</div>
<div class="seq-2">2</div>
<div class="seq-2 last">3</div>
Edit:
I just noticed you wan't the border to be 0px/blank on the last element and the first element each row. Now that is a bit trickier.
I'm not positive there's a good solution to solving that using css since your sequences seem to be dynamic.
Please correct me if I'm wrong, but I think you need to use javascript to manage this.
Edit 2: CSS and JQuery solution
I made a quick jquery solution that utilies my previously provided CSS code.
The jQuery script removes the left border if the elements left offset(within it's parent) is 0 and if the element is not the first element in each sequenc(first class added).
Fiddle
var containerOffset = $('.container').offset().left;
setBorderWidth();
$(window).resize(function(){
setBorderWidth();
});
function setBorderWidth(){
$('.block').each(function() {
var childOffset = $(this).offset().left;
if(childOffset - containerOffset == 0 && !$(this).hasClass('first'))
$(this).css("border-left-width", "0px");
else
$(this).css("border-left-width", "1px");
});
}
.container{width: 100%;}
.block{
width: 100px;
height: 50px;
line-height: 50px;
text-align: center;
float:left;
background: #eee;
border: 1px solid #000;
border-width: 1px 0 1px 1px;
margin-bottom: 10px;
}
.block.last{margin-right: 5px;}
.block.last,
.block:last-child{border-right-width: 1px;}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.2/jquery.min.js"></script>
<div class="container">
<div class="seq-1 block first">1</div>
<div class="seq-1 block">2</div>
<div class="seq-1 block">3</div>
<div class="seq-1 block">4</div>
<div class="seq-1 block last">5</div>
<div class="seq-2 block first">1</div>
<div class="seq-2 block">2</div>
<div class="seq-2 block last">3</div>
</div>

What I would recommend is to have 3 CSS classes
1) beginning of sequence
2) middle of sequence
3) end of sequence
then display different borders using:
.beginning-of-seq {
border-top-style: solid;
border-right-style: none;
border-bottom-style: solid;
border-left-style: solid;
}
for instance.
about the angular part just use ng-repeat="seq in sequences" for instance and then render the sequence with the classes you created so it will look good (of course you need the scope to have the sequences)
<span ng-repeat="seq in sequences">
<span class="beginning-of-seq"> {{seq.title}} </span>
<span class="middle-of-seq ng-repeat="elem in seq.otherElements">{{elem}}</span>
<span class="end-of-seq"> {{seq.lastElem}} </span>
</span>
</span>
this is a bit crude and i don't know how you implemented it but it should give you an idea where to start

This HTML/CSS should do the trick. As you mentioned about the user having different resolutions, I've used percentages for the widths (depending on your scenario, media queries may be needed).
.container {
width: 30%; /*Change this to fit your design*/
}
.seq {
display: inline;
border: 0.1em solid #000;
margin-right: 1em;
}
.seq .item {
display: inline-block;
width: 5%; /*Change this to fit your design*/
margin-bottom: 1em;
}
.seq .item:not(:last-child) {
border-right: 0.1em solid #000;
}
<div class="container">
<div class="seq">
<div class="item item-title">A</div>
<div class="item">1</div>
<div class="item">2</div>
<div class="item">3</div>
</div>
<div class="seq">
<div class="item item-title">B</div>
<div class="item">4</div>
<div class="item">5</div>
</div>
<div class="seq">
<div class="item item-title">C</div>
<div class="item">1</div>
<div class="item">2</div>
<div class="item">3</div>
<div class="item">4</div>
<div class="item">5</div>
<div class="item">6</div>
</div>
<div class="seq">
<div class="item item-title">D</div>
<div class="item">1</div>
<div class="item">2</div>
<div class="item">3</div>
<div class="item">4</div>
<div class="item">5</div>
</div>
</div>

About the AngularJS binding:
In your controller define your array of sequences and some functions to manipulate the sequences:
$scope.sequences = [];
$scope.addSequence = function(sequenceName){
var newSequence = { name : sequenceName, events: [] };
$scope.sequences.push(newSequence);
};
$scope.addEventToSequence = function(sequenceName, event){
var sequence = getSequence(sequenceName); // write this function to get the right sequence from the array
sequence.events.push(event);
}
Now in your html loop over the sequences and events using ng-repeat
<ul>
<li ng-repeat="sequence in sequences">
<ul>
<li>{{sequence.name}}</li>
<li ng-repeat="event in sequence.event">{{event.name}}</li>
</ul>
</li>
</ul>

Related

Can't access useRef() value due to render timing

I am fairly new to React. I am also new to asking questions on this forum.
I have a pretty basic two column layout and I am trying to dynamically set the image size in the RH column to match the height of the text content of the LH column.
I have figured out I can't get the scrollHeight value of the ref'd element until the page is rendered but I don't want to render the page until I know the scrollHeight value to render the image...and around in circles I go.
I can get the ref'd value if I put a console.log inside a useEffect() but I don't know to adapt this to help me solve the specific problem.
Can anyone help with a solution or another method to achieve this same idea?
const tickList = useRef();
useEffect(() => {
console.log(tickList);
}, [])
<div className='ticklist-container' ref={tickList}>
<TickCrossList items={tickListItems} />
</div>
<div className='image-container p-1 flex flex-center'>
<img
src={imageUrl}
alt={imageAltText}
style={{ width: tickList.current.scrollHeight * 1.77 }}
/>
</div>
I believe this is, at core, an XY problem. You're asking how to technically achieve a nearly impossible task (1) when you're actually trying to answer another question: how to make some text and an image look good side by side (2) (which, by and large, is not an actual coding problem - it's a graphical design problem).
Most notably, you're not providing either the text or the image, so you're asking for a general solution, which would work in all cases. That solution doesn't exist. Picture how the result would look if the text was 1 letter long and how it would look if it was 2 pages long.
Last, but not least, the problem is not strictly related to React. In general, you should ask yourself:
is this achievable in DOM (HTML + CSS + JS)?
does it need JS?
once you answer both of the above with "yes", and you know how the output should look like, the React part is generally easy.
In more detail...
(1). When you're changing the image size, provided you maintain its ratio, you're going to affect the paragraph's width, causing it to re-wrap, changing its height, potentially creating a loop. In many cases, you'd need to re-run the script multiple times until the text no longer re-wraps when adjusting the image height.
In some cases, depending on the amount of text, a solution doesn't even exist.
In other cases, the script will jump between two positions, basically two different numbers of text rows, each resizing the image, causing the text to jump to the other number of rows, causing the whole thing to tremble indefinitely. I've actually seen this quite a few times, on production websites. The general fix is to record each resizing step and, should the script get any of the previous values, kill it. An ugly fix for an ugly bug.
And, in some other cases, you might find multiple possible "solutions". Which one should the script pick?
Picture all this in the context of resize events (a user flipping their tablet from landscape to portrait and back) and you got a recipe for disaster, UX-wise.
Not to mention browsers nowadays allow users to override font-size or font-family, giving control over readability. How would your script cope with this change?
(2) How this problem is typically solved.
There are a few distinct considerations:
the image needs to have a minimum size, at which it conveys whatever message it carries. It needs to remain "readable" at all times. Not too small, but not too large, either. It has to be in balance with the amount of text.
if there's too much text, you either make its box scrollable (depending on case) or you crop the sides of the image (if image is "croppable" - from a graphical POV).
the text needs to remain readable (with ease) at all times (lines shouldn't be too long or too short)
typically, you want to roughly determine a ratio between the minimal image size and a paragraph width good for readability and set a consistent ratio (throughout the whole app/website) between the two (design consistency pays off in how your website is perceived as a whole - it provides rhythm and an overall feeling of confidence and reliability, when done right). Go with 1:1, 2:1, 3:1, 1:2, 1:3, based on paragraph length and readability. Another good ratio is 1:1.618 (the golden ratio - it's pleasing to the eye, without an exact explanation - debugging humans is particularly difficult)
a typical solution is to wrap the paragraph into a slightly bigger, visible box, with a slightly different background or border color. This gives you significantly more flexibility in matching the image height. See the examples below.
below a particular container width, you want the two elements (the image and the text box) to wrap, so they both remain readable and attractive (e.g: responsiveness)
A few bad examples you probably want to avoid (but you're currently asking for), followed by a possible answer to the Y problem:
.container {
display: flex;
max-width: 600px;
margin: 0 auto;
margin-top: 1rem;
justify-content: space-between
}
.proper img {
width: 50%;
}
.proper div {
background-color: #F5f5f5;
display: flex;
align-items: center;
justify-content: center;
padding: 2em;
}
.proper.two div {
background-color: transparent;
border: solid #ddd;
border-width: 1px 0 1px 1px;
}
<div class="container">
<h3>What you probably don't want</h3>
</div>
<div class="container">
<div>Spiff up your work with our random beer Lorem Ipsum generator. Beer!</div>
<img src="https://random-ize.com/lorem-ipsum-generators/beer/suds3.jpg" style="max-width: 528px">
</div>
<div class="container">
<div>Spiff up your work with our random beer Lorem Ipsum generator. Beer!
</div>
<img src="https://random-ize.com/lorem-ipsum-generators/beer/suds3.jpg" style="max-width: 515px">
</div>
<div class="container">
<div>Spiff up your work with our random beer Lorem Ipsum generator. Beer!
</div>
<img src="https://random-ize.com/lorem-ipsum-generators/beer/suds3.jpg" style="height: 1em">
</div>
<div class="container">
<div>Spiff up your work with our random beer Lorem Ipsum generator. More Beer!
</div>
<img src="https://random-ize.com/lorem-ipsum-generators/beer/suds3.jpg" style="height: 2em">
</div>
<div class="container">
<h3>What you probably want</h3>
</div>
<div class="container proper">
<div>Spiff up your work with our random beer Lorem Ipsum generator. Beer!</div>
<img src="https://random-ize.com/lorem-ipsum-generators/beer/suds3.jpg">
</div>
<div class="container proper two">
<div>Spiff up your work with our random beer Lorem Ipsum generator. Beer!</div>
<img src="https://random-ize.com/lorem-ipsum-generators/beer/suds3.jpg">
</div>
As a bonus, what golden ratio can do for you:
* {
box-sizing: border-box;
}
body {
background-color: #f5f5f5;
margin: 0;
padding: 0 2.1rem;
}
.container {
padding: 2.1rem 0;
max-width: 500px;
margin: 0 auto;
min-height: 100vh;
display: flex;
align-items: center;
}
.golden-ratio {
border-radius: .35rem;
overflow: hidden;
display: flex;
justify-content: space-between;
background-color: white;
color: #aaa;
aspect-ratio: 1.618;
box-shadow: 0 1px 5px 0 rgb(0 0 0 / 10%), 0 2px 2px 0 rgb(0 0 0 / 07%), 0 3px 1px -2px rgb(0 0 0 / 06%)
}
.image-container {
flex-grow: 1;
background: #ddd url('https://random-ize.com/lorem-ipsum-generators/beer/suds3.jpg') 100% /cover;
}
.content {
flex: 0 0 61.8%;
font-size: 1.5rem;
font-style: italic;
text-align: center;
display: flex;
align-items: center;
justify-content: center;
padding: 0 10%;
}
#media (max-width: 600px) {
.golden-ratio {
flex-direction: column-reverse;
aspect-ratio: unset;
}
.content {
flex-basis: 50%;
padding: 3rem;
font-size: 1.2rem;
}
.image-container {
aspect-ratio: 4.16;
flex-basis: 50%;
}
}
<div class="container">
<div class="golden-ratio">
<div class="content">Spiff up your work with our random beer Lorem Ipsum generator. Beer!</div>
<div class="image-container"></div>
</div>
</div>

Angular Material mdTabs : is it possible to have vertical tabs?

I am looking for Tabs displayed top to bottom with tab navigation on the left. Is there anyway this can be achieved in Angular Material library?
This codepen by Rahul Sagore uses vanilla Material, not specifically for Angular, but it's exactly what you want. I was looking for the same thing as you; it's a shame Material doesn't offer this, but I can see how it would go against their principles and make Material too extensive.
It comprises of custom css (perhaps overriding, I'm not sure) and use of particular Material classnames. Below I've pasted the contents into a snippet.
I had an issue with the mdl-cell--n-col classes so I changed the content one from 10-col to 6-col so it wouldn't wrap the content beneath the tabs in the restrictive space of this post. You'll probably have to tinker with that yourself, or scrap that and use Material styles the way you know how. Similarly, I cannot see what the .hollow-circle spans are doing, so perhaps they aren't needed.
/*Vertical Tabs*/
.vertical-mdl-tabs {
margin-top: 30px;
}
.vertical-mdl-tabs .mdl-tabs__tab-bar {
-webkit-flex-direction: column;
-ms-flex-direction: column;
flex-direction: column;
padding-bottom: 35px;
height: inherit;
border-bottom: none;
border-right: 1px solid rgba(10, 11, 49, 0.20);
}
.vertical-mdl-tabs .mdl-tabs__tab {
width: 100%;
height: 35px;
line-height: 35px;
box-sizing: border-box;
letter-spacing: 2px;
}
.vertical-mdl-tabs.mdl-tabs.is-upgraded a.mdl-tabs__tab.is-active {
border-right: 2px solid #ED462F;
}
.vertical-mdl-tabs.mdl-tabs.is-upgraded .mdl-tabs__tab.is-active:after {
content: inherit;
height: 0;
}
.vertical-mdl-tabs.mdl-tabs.is-upgraded .mdl-tabs__panel.is-active, .mdl-tabs__panel {
padding: 0 30px;
}
.vertical-mdl-tabs.mdl-tabs .mdl-tabs__tab {
text-align: left;
}
<script src="https://storage.googleapis.com/code.getmdl.io/1.1.0/material.min.js"></script>
<link href="https://storage.googleapis.com/code.getmdl.io/1.1.0/material.indigo-pink.min.css" rel="stylesheet"/>
<div class="mdl-tabs vertical-mdl-tabs mdl-js-tabs mdl-js-ripple-effect">
<div class="mdl-grid mdl-grid--no-spacing">
<div class="mdl-cell mdl-cell--2-col">
<div class="mdl-tabs__tab-bar">
<a href="#tab1-panel" class="mdl-tabs__tab is-active">
<span class="hollow-circle"></span>
Tab 1
</a>
<a href="#tab2-panel" class="mdl-tabs__tab">
<span class="hollow-circle"></span>
Tab 2
</a>
<a href="#tab3-panel" class="mdl-tabs__tab">
<span class="hollow-circle"></span>
Tab 3
</a>
</div>
</div>
<div class="mdl-cell mdl-cell--6-col">
<div class="mdl-tabs__panel is-active" id="tab1-panel">
Content 1
</div>
<div class="mdl-tabs__panel" id="tab2-panel">
Content 2
</div>
<div class="mdl-tabs__panel" id="tab3-panel">
Content 3
</div>
</div>
</div>
</div>
you can have verticval tabs by adding vertical attribute to the mat-tab-group and adding following css to your page.
mat-tab-group[vertical] .mat-tab-labels {
display: flex;
flex-direction: column!important;
}
mat-tab-group[vertical] {
display: flex;
flex-direction: row!important;
}
here's the mat-tab-group element with vertical attribute
<mat-tab-group flex="1" vertical>
<mat-tab label="Tab 1"> Loading ... </mat-tab>
<mat-tab label="Tab 2" > Loading ... </mat-tab>
</mat-tab-group>

How to hide css border-right using loop for even number in angular js

I am devolping app using angular js and ionic framework. I want to show border right only for odd numbers.
Here is my code:
<div class="media-body" style="padding-bottom:25px;">
<h2 class="align_center">{{services.name}}</h2>
<a href="#job/{{services.id}}">
<h2 class="align_center_des">{{services.description}}</h2>
</div>
</div></div>
Here is the Css
.col-32-custom {
width: 32%;
float: left;
margin-left: 1%;
border-right: 1px solid #E4E4E4;
margin-bottom: 31px;
height: 144px;
}
Here is fiddle:
https://jsfiddle.net/asetkL0n/
CSS also allows you to target specific odd or even elements. An example to that could be:
.col-32-custom {
width: 32%;
float: left;
margin-left: 1%;
margin-bottom: 31px;
height: 144px;
}
.col-32-custom:nth-child(odd) {
border-right: 1px solid #E4E4E4;
}
wherein, inside that nth-child, you can pass, "odd","even","2n","2n+1", or any expression in n.
I think the best solution is to use ng-class, so you have to create a class that will only add the border right.
I presume you are in an ng-repeat loop so the code will look like
<div data-ng-class="{border-right: ($index%2)===0}" class="col-32-custom">
Here you have the condition for the even number ($index%2)===0 so the div will have border-right class on event number.
you can use ng-class-odd / ng-class-even within ng-repeat to add specific classes to this items.
example here : ng-class-odd

How to change the class on one div while hovering over another div with AngularJS?

I want to change the class of one div while hovering over another div using AngularJS directives. Here is what I have so far http://jsfiddle.net/E8nM5/38/
HMTL
<div ng-controller="Ctrl" ng-app>
<div ng-class="my-class">This div will change class when one hovers over bottom DIV </div>
<br/>
<div class="hover-div" ng-mouseenter="my-class = 'highlight'" ng-mouseleave="my-class = 'lowlight'">HOVER OVER ME TO CHANGE THE UPPER DIV's CLASS</div>
</div>
CSS
div.highlight {
padding: 10px;
background: red;
color: white;
}
div.lowlight {
padding: 10px;
background: blue;
color: white;
}
div.hover-div {
padding: 10px;
background: green;
color: white;
}
JS
function Ctrl($scope){
}
Any ideas?
Change my-class to myclass (i.e. the dash causes problem).
<div ng-controller="Ctrl" ng-app>
<div ng-class="myclass">This div will change class when one hovers over bottom DIV </div>
<br/>
<div class="hover-div" ng-mouseenter="myclass = 'highlight'" ng-mouseleave="myclass = 'lowlight'">HOVER OVER ME TO CHANGE THE UPPER DIV's CLASS</div>
</div>
Updated: the reason my-class isn't allowed in the expression is because AngularJS treats the dash as minus symbol and tries to parse it that way. Apparently, it can't parse the statement my - class = 'highlight'. Unfortunately, after reading AngularJS parser code, I can't find a way to "help" it distinguish between dash and minus.
You need to remove the hyphen from my-class so it will work properly in your Controller. Other than that it looks like you have it mostly done. Here's a little snippet - I also added it as text in the div so you can see it change
Your HTML File:
<div class="{{myClass}}"> {{myClass}} </div>
<div class="hover" style="height:50px; width:50px; border:1px solid black;" ng-mouseleave="myClass='test'" ng-mouseenter="myClass='hola'"> </div>
Controller
function Ctrl($scope){
$scope.myClass="test";
}

Vertical inline-block?

Currently I have something like this. The "Page" and "Row" elements are created dynamically using javascript.
The problem rises when there are multiple Pages, and a Row in the Page 1 is deleted, for example. The empty space should be filled by the element that is below, if the empty space is at the end of the page, then the first element of the next page should fill the empty space, and so on. At the end it should look like this.
I can solve this rearranging/recreating the entire PageCont.
Is there a way I can achieve this using pure CSS? So the rearranging would be handled by the rendering engine of the browser.
Something like this inline-block but with vertical direction.
Any help is highly apreciated.
​HTML:
<div class="PageCont">
<div class="Page">
<div class="Row">1</div>
<div class="Row">2</div>
<div class="Row">3</div>
<div class="Row">4</div>
</div>
<div class="Page">
<div class="Row">5</div>
<div class="Row">6</div>
<div class="Row">7</div>
<div class="Row">8</div>
</div>
<div class="Page">
<div class="Row">9</div>
</div>
</div>​
CSS:
.PageCont
{
height: 300px;
width: 350px;
border:2px solid red
}
.Page
{
float:left;
margin-left:10px;
}
.Row
{
height:50px;
width:50px;
background-color:blue;
color:white;
margin-top:10px;
}
​
The operation could be successfully performed trivially if it included horizontal wrapping, with plain simple CSS. However since this case involves vertical wrapping javascript be necessary with your current implementation. If you were to use columns you wouldn't need the javascript and CSS is all that's needed.
Here is a fiddle where I've implemented it http://jsfiddle.net/eQvaZ/
The HTML is as follows:
<body>
<div class="pageCont">
<div class="Row">C1</div>
<div class="Row">C2</div>
<div class="Row" id="to-remove">C3</div>
<div class="Row">C4</div>
<div class="Row">C5</div>
<div class="Row">C6</div>
<div class="Row">C7</div>
</div>
<div>Removing C3 in 5 seconds...</div>
</body>
The CSS:
.pageCont{
column-count:2;
column-rule:0px;
-webkit-column-count: 2;
-webkit-column-rule: 0px;
-moz-column-count: 2;
-moz-column-rule: 0px;
padding:10px;
height: 250px;
width: 200px;
border:2px solid red
}
.Row {
height:50px;
width:50px;
background-color:blue;
color:white;
margin-bottom:10px;
}
The bit of JavaScript to remove an item:
setTimeout( function(){
var to_remove = document.getElementById('to-remove');
to_remove.parentNode.removeChild(to_remove);
}, 5000);
Let me know if you have any questions regarding this implementation.

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