I have stumbled upon some difficulties styling ion-datetime component using ionic 6, and none of the posts seem to contain a solution for this. I would like to apply some custom styles to picker items that appear in the shadow-root part.
Applying CSS to classes like .picker-item and .picker-item-active doesn't do anything because they are in the shadow-root. And there don't seem to be any styling properties and variables for ion-picker that I could use.
I am using the standard ion-datetime component like this:
<ion-datetime presentation="time"></ion-datetime>
and in the simulator while inspecting the HTML it appears as:
Styling that I would like to change:
Color and font properties for picker items
Color, background and font properties for active picker item
Since they are all open shadowRoots, you can get in and inject a <style> sheet:
document.querySelector("ion-datetime")
.shadowRoot.querySelector("ion-picker-internal")
.shadowRoot.querySelector("ion-picker-column-internal")
.shadowRoot.prepend( Object.assign( document.createElement("style") , {
innerText : `
.picker-item {
background:hotpink
}
`
}));
After some more playing around, I have been able to find a solution and customize it to my project needs. Thanks to Danny '365CSI' Engelman for inspiration.
The use of ion-datetime and its customization in my project is complex due to using multiple ion-datetime elements appearing and disappearing dynamically. Therefore, applying custom styling of it required some additional logic not posted here. Please reach out if you need some help regarding this.
Here is the base logic that allowed me to apply some styles to ion-datetime:
document.querySelectorAll("ion-datetime").forEach(dt => {
var el = dt.shadowRoot.querySelector("ion-picker-internal");
el.shadowRoot.prepend(Object.assign(document.createElement("style"), {
innerText: `
.picker-highlight {
background: red !important;
}
`
}));
el.querySelectorAll("ion-picker-column-internal").forEach(col => {
col.shadowRoot.prepend(Object.assign(document.createElement("style"), {
innerText: `
.picker-item {
color: green !important;
}
.picker-item-active {
color: blue !important;
}
`
}));
});
});
Related
I got react-toastify installed, and my toasts are working, but I want to add them some custom styling depending on a theme, and none of the solutions I saw are working in my case.
I don't want to overcomplicate it, I just want to change background color, maybe borders, font color, etc.
I tried class overriding which documentation is saying about - it's not working.
.Toastify__toast-theme--colored.Toastify__toast--error {
color: white;
background-color: red;
}
I tried my own className and pass it to certein toast - it's not working.
toast.error('here some error', {
className: 'toast-error'
});
.toast-error {
color: white;
background-color: red;
}
And these themed classes are not even added to the toast.success() or toast.error()
I tried to override values in the core css file that im importing, and it's not working.
And if I set background-color: red to the actual class that is added, then I get red background on toast.success() as well.
Here is documentation.
How to deal with this?
using classnames should be the solution to your problem
className={classnames("Toastify__toast-theme--colored", {
"toast-error": // here the condition by which toast-error class should pop up
})}
With third-party components, the way to include their styles is by importing their stylesheet into _app.tsx or importing the stylesheet into your component that uses the third-party component, as described here: https://nextjs.org/docs/basic-features/built-in-css-support#import-styles-from-node_modules or by adding to next.config.js like so:
// next.config.js
const withTM = require("next-transpile-modules")([
"#fullcalendar/common",
"#fullcalendar/daygrid",
"#fullcalendar/timegrid",
"#fullcalendar/interaction",
"#fullcalendar/react",
"#fullcalendar/list",
To modify the third-party stylesheet, you need to create your own stylesheet and add it to _app.tsx; those modifications might look like this:
// styles/modified-fullcalendar.scss
.fc-col-header {
width: 100% !important;
}
Another option, at least for my use case (Full Calendar) is to use CSS variables as described here in technique 2 on this page: https://fullcalendar.io/docs/css-customization. There was a lengthy thread about this on the Full Calendar issues page, as seen here: https://github.com/fullcalendar/fullcalendar/issues/5393
The problem with all of these methods of customization is that they're global, and so anywhere you use this third-party component it'll look the same. However, in my case, I want to use the component on two different pages, with different styling modifications. With most frameworks, I would simply import the relevant modified stylesheet wherever I needed it, but NextJS doesn't allow that. How can I achieve the modifications I want?
The solution is to wrap the component in a div with a specific class name, then do the css overrides in a nested format for each use case in the override file.
Explanation:
Say your third-party component is FullCalendar. It's being imported and used in the files Foo.tsx and Bar.tsx. In Foo, let's say you want the calendar cells to be green.
To make the modification, you create the file modified-fc.scss and do the following:
// modified-fc.scss
.fc-cell {
background: green !important;
}
You then import modified-fc.scss into _app.tsx in order to apply the styles globally, and you're done. However, this prevents you from changing the cell color to orange in Bar. To circumvent this, just wrap the component:
// Foo.tsx
<div className=".wrapper1">
<FullCalendar/>
</div>
// Bar.tsx
<div className=".wrapper2">
<FullCalendar/>
</div>
and then nest the classes:
// modified-fc.scss
.wrapper1 {
.fc-cell {
background: green !important;
}
}
.wrapper2 {
.fc-cell {
background: orange !important;
}
}
OR
.wrapper1 > .fc-cell {
background: green !important;
}
.wrapper2 > .fc-cell {
background: orange !important;
}
I am trying to highlight a row based user input. I am using Angular 5, with ag-grid-angular 19.1.2. Setting the style with gridOptions.getRowStyle changes the background, but I would rather use scss classes if possible. The function setHighlight() is called in the html file through (change)=setHighlight()
setHighlight() {
const nextChronoId = this.getNextChronoDateId();
// this.highlightWithStyle(nextChronoId); // Working solution
this.highlightWithClass(nextChronoId);
const row = this.gridApi.getDisplayedRowAtIndex(nextChronoId);
this.gridApi.redrawRows({ rowNodes: [row]})
}
Function definitions:
highlightWithStyle(id: number) {
this.gridApi.gridCore.gridOptions.getRowStyle = function(params) {
if (params.data.Id === id) {
return { background: 'green' }
}
}
}
highlightWithClass(id: number) {
this.gridApi.gridCore.gridOptions.getRowClass = function(params) {
if (params.data.Id === id) {
return 'highlighted'
}
}
}
My scss class:
/deep/ .ag-theme-balham .ag-row .ag-row-no-focus .ag-row-even .ag-row-level0 .ag-row-last, .highlighted{
background-color: green;
}
My issue
Using getRowClass does not apply my highlighted class correctly to the rowNode. After reading (and trying) this, I think that my custom scss class overwritten by the ag-classes. The same problem occurs when using rowClassRules.
Question
How can I make Angular 5 and ag-grid work together in setting my custom scss class correctly?
Stepping with the debugger shows the class is picked up and appended to the native ag-grid classes.
In rowComp.js:
Addition, screen dump from dev tools:
angular's ViewEncapsulationis the culprit here.
First be aware that all shadow piercing selectors like /deep/ or ::ng-deep are or will be deprecated.
this leaves, to my knowledge, two options.
use ViewEncapsulation.None
add your highlighted class to the global stylesheet
setting ViewEncapsulation.None brings its own possible problems:
All components styles would become globally available styles.
I would advise to go with option two.
this answers sums it up pretty well.
Additionally:
.ag-theme-balham .ag-row .ag-row-no-focus .ag-row-even .ag-row-level0 .ag-row-last
this selector will never match anything, you should change it to
.ag-theme-balham .ag-row.ag-row-no-focus.ag-row-even.ag-row-level0.ag-row-last
every class after ag-theme-balham exists on the same element.
with the selector you wrote, you would denote a hierarchy.
Hope this helps
I need to dynamically change the color in the react component for specific selector.
In scss (use sass) i have the following rule:
foo.bar.var * {
color: blue;
}
I want to change it in react code, to be yellow, red or something else.
I cant use style property for element, cause i need the selector to
apply for all subchilds !=)
Is there any native ways? Or should i use Radium? Or is there any similar libs for this? Maybe css-next some hove can help with this?
I have color picker, i cant write class styles for every color =(
For some answerers NOTE:
So i have selector in some scss file, that imported in some root js file with .class * {color: $somecolor} and i need change the $somecolor in that selector, during picking colors in color picker
Maybe i can somehow set selector for all nested inside style property? or there is the way how to recursively apply css style for every nested items from the style prop?
What about
class MyComponent extends React.Component {
render() {
const yellow = true // Your condition
return(
<div className={`foo bar var ${yellow && 'yellow'}`}
My item
</div>
)
}
}
.foo.bar.var {
& * {
color: blue;
}
&.yellow * {
color: yellow;
}
}
You could define a custom CSS property (CSS variables) using the style attribute of the element and assign the value to a prop, state etc.
<div className='foo bar var' style={{ "--my-color": props.color }}></div>
The custom property would work for any selector that apply to that component or children. So you could use it like that:
foo.bar.var * {
color: var(--my-color);
}
See a snippet with similar code here
this may sound stupid . but does this work ?
import myCss from './mydesign.css';
myCss.foo.bar.var = "your color"
For an Angular project I'm working on, I'm injecting HTML into a <div> like so:
<div class="myClass" [innerHTML]="htmlToInsert"></div>
The htmlToInsert contains a variety of things, notably <a> tags. Previously we were styling all these tags like so:
.myClass ::ng-deep a {
color: #f00;
text-decoration: none;
}
And this worked fine. But now I need the color of these links to be dynamically generated during component initialization, based on data coming in from elsewhere. All of the dynamic styling I've seen in Angular requires you to apply things directly to the HTML tag, but we don't have them here to work with.
How can I apply dynamic styling to HTML that is also dynamically generated? Can I directly change the CSS class somehow? Would using a pipe be the correct approach here? Is there another method I don't know about? I could maybe refactor code if there is absolutely no other way of doing this.
So if you can't modify the innerHTML you are passing in, you can achieve this functionality with a custom directive. Essentially you would tag your div that contains your innerHTML with a custom directive. That directive then looks for any anchor tags in it and changes the color based on an input.
// component.html
<div anchorColor [color]="dynamicColor" [innerHTML]="htmlToInsert"></div>
// directive.ts
#Directive({selector: '[anchorColor]'})
export class AnchorColorDirective implements OnAfterViewInit {
#Input() color: string;
constructor(private el: ElementRef){
}
// afterViewInit lifecycle hook runs after DOM is rendered
ngAfterViewInit(){
// get anchor element
let anchorEl = this.el.nativeElement.querySelector('a');
// assign color
if(anchorEl){
anchorEl.style.color = this.color;
}
}
}
Here is a working plunkr https://plnkr.co/edit/QSYWSeJaoUflP94Cy4Hm?p=preview