ngx-popperjs

ngx-popperjs is an angular wrapper for the FloatingUI library (v ^1.5.3).

VERY IMPORTANT READ THIS

With v17 ngx-popperjs won't get any updates. That's because from v17 it's not actually using popper.js anymore.

I developed ngx-float-ui and released v17 at the same time of this. My suggestion is to migrate to that one. In 6 months from the release, this version will be marked as deprecated. Since the new library isn't affected by the "Chrome 110 bug" I would suggest to migrate earlier versions as well. If you open an issue on ngx-float-ui asking for a certain version (or search for an open issue for that version and leave a thumb), I will publish earlier versions as well.

NOW USING FLOATING UI - UPGRADING TO v17

If you used previous versions of ngx-popperjs, you'll now that it wrapped popper.js initially. Since Floating UI is the future version of Popper.js and since latest happenings with recent Chrome updates breaking ngx-popperjs, I decided to move to the newer technology.

What impacts does it have for the library?

Well on a graphic perspective, none. You will be able to use the v17 without changing any stylings.

The only deprecation is in the NgxPopperjsOptions which now doesn't provide the modifiers. The reason is that you can't now pass modifiers like you did in Popper.js. It didn't seem like a huge change, since in this library modifiers should be mostly (but let me know with an issue) for preventing the popper flipping. Maybe if we see that it can be useful we can pass an override for the middleware.

I simply added a new attribute, popperFlip, that you can set to false, in order to prevent the flipping (default true).

Check NgxPopperjs official page to stay up to date!

Premise

The goal of this library is to take Mr Frankel's ngx-popper and update the compatibility for more recent versions of Angular. Since the old library is compatible with Angular 7 and earlier, I started with Angular 8. If you need to work with an older version of Angular (5 to 7), please refer to Mr Frankel's ngx-popper.

From v15.2.0:

Since many complained about using the NgxPopperjsPlacements enum, I added a version of the popper directive which accepts a plain string as placement! Now you can use it with all the options of the classic popper, but you'll have to use:

popperLoose instead of popper

and

popperLoosePlacement instead of popperPlacement

Installation

node and npm are required to run this package.

1. Use npm/yarn to install the package:

$ npm install @floating-ui/dom ngx-popperjs --save

Or

 $ yarn add @floating-ui/dom --save
 $ yarn add ngx-popperjs --save 

2. You simply add into your module NgxPopperjsModule:

import {NgxPopperjsModule} from 'ngx-popperjs';

@NgModule({
 // ...
 imports: [
   // ...
   NgxPopperjsModule
 ]
})

Optionally you can include in your styles.css / styles.css one of the prebuilt themes:

• @import node_modules/ngx-popperjs/css/theme-dark.css

• @import node_modules/css/theme-white.css

• @use ngx-popperjs/scss/theme as popperBaseTheme

• @use ngx-popperjs/scss/theme-dark as popperDarkTheme

• @use ngx-popperjs/scss/theme-white popperWhiteTheme

or easily create your own theme using the @mixin:

@use "ngx-popperjs/scss/theme" as popperBaseTheme;

body {
    @include popperjs.ngx-popperjs-theme($background-color, $text-color, $max-width, $z-index);
}

3. Add to view:

 <popper-content #popper1Content>
     <p class="bold">Popper on bottom</p>
 </popper-content>
 <div [popper]="popper1Content"
      [popperShowOnStart]="true"
      [popperTrigger]="'click'"
  	popperHideOnClickOutside
      [popperHideOnScroll]="true"
      [popperPlacement]="'bottom'">
     <p class="bold">Hey!</p>
     <p class="thin">Choose where to put your popper!</p>         
 </div>

4. As text:

     <div popper="As text"
          [popperTrigger]="'hover'"
          [popperPlacement]="'bottom'"
          (popperOnShown)="onShown($event)">
       <p class="bold">Pop</p>
       <p class="thin">on the bottom</p>
     </div>

     <div popper="{{someTextProperty}}"
          [popperTrigger]="'hover'"
          [popperPlacement]="'bottom'"
          [popperStyles]="{'background-color: 'blue''}"
          (popperOnShown)="onShown($event)">
       <p class="bold">Pop</p>
       <p class="thin">on the bottom</p>
     </div>

5. Position fixed, breaking overflow:

     <div popper="As text"
          [popperTrigger]="'hover'"
          [popperPlacement]="'bottom'"
          [popperPositionFixed]="true"
          (popperOnShown)="onShown($event)">
     </div>

6. Specific target:

<div class="example">
     <div #popperTargetElement></div>
     <div popper="As text"
          popperTrigger="hover"
          popperPlacement="bottom"
          [popperTarget]="popperTargetElement.nativeElement"
          (popperOnShown)="onShown($event)">
     </div>

7. hide/show programmatically:

 <div [popper]="tooltipcontent"
      popperTrigger="hover"
      popperPlacement="bottom"
      [popperApplyClass]="'popperSpecialStyle'">
      <p class="bold">Pop</p>
      <p class="thin">on the bottom</p>
    </div>
    <popper-content #tooltipcontent>
      <div>
        <p>This is a tooltip with text</p>
        <span (click)="tooltipcontent.hide()">Close</span>
      </div>
    </popper-content>

8. Attributes map:

   Option	Type	Default	Description
   popperDisableAnimation	boolean	false	Disable the default animation on show/hide
   popperDisableStyle	boolean	false	Disable the default styling
   popperDisabled	boolean	false	Disable the popper, ignore all events
   popperDelay	number	0	Delay time until popper it shown
   popperTimeout	number	0	Set delay before the popper is hidden
   popperTimeoutAfterShow	number	0	Set a time on which the popper will be hidden after it is shown
   popperPlacement	Placement(string)	auto	The placement to show the popper relative to the reference element
   popperTarget	HtmlElement	auto	Specify a different reference element other the the one hosting the directive
   popperBoundaries	string(selector)	undefined	Specify a selector to serve as the boundaries of the element
   popperShowOnStart	boolean	false	Popper default to show
   popperTrigger	Trigger(string)	click	Trigger/Event on which to show/hide the popper
   popperPositionFixed	boolean	false	Set the popper element to use position: fixed
   popperAppendTo	string	undefined	append The popper-content element to a given selector, if multiple will apply to first
   popperPreventOverflow	boolean	undefined	Prevent the popper from being positioned outside the boundary
   popperHideOnClickOutside	boolean	true	Popper will hide on a click outside
   popperHideOnScroll	boolean	false	Popper will hide on scroll
   popperHideOnMouseLeave	boolean	false	Popper will hide on mouse leave
   popperApplyClass	string	undefined	list of comma separated class to apply on ngpx__container
   popperStyles	Object	undefined	Apply the styles object, aligned with ngStyles
   popperApplyArrowClass	string	undefined	list of comma separated class to apply on ngpx__arrow
   popperOnShown	EventEmitter<>	$event	Event handler when popper is shown
   popperOnHidden	EventEmitter<>	$event	Event handler when popper is hidden
   popperOnUpdate	EventEmitter<>	$event	Event handler when popper is updated
   popperAriaDescribeBy	string	undefined	Define value for aria-describeby attribute
   popperAriaRole	string	popper	Define value for aria-role attribute
   popperFlip	boolean	true	Enable or disable the flipping

9. Override defaults:

   ngx-popperjs comes with a few default properties you can override in default to effect all instances These are overridden by any child attributes.

NgModule({
  imports: [
    BrowserModule,
    FormsModule,
    NgxPopperjsModule.forRoot({placement: NgxPopperjsPlacements.TOP})],
  declarations: [AppComponent],
  providers: [],
  bootstrap: [AppComponent]

});

Options	Type	Default
showDelay	number	0
disableAnimation	boolean	false
disableDefaultStyling	boolean	false
placement	Placement(string)	auto
boundariesElement	string(selector)	undefined
trigger	Trigger(string)	hover
positionFixed	boolean	false
hideOnClickOutside	boolean	true
hideOnMouseLeave	boolean	false
hideOnScroll	boolean	false
applyClass	string	undefined
styles	Object	undefined
applyArrowClass	string	undefined
ariaDescribeBy	string	undefined
ariaRole	string	undefined
appendTo	string	undefined
preventOverflow	boolean	undefined

10. popperPlacement:

| 'top' | 'bottom' | 'left' | 'right' | 'top-start' | 'bottom-start' | 'left-start' | 'right-start' | 'top-end' | 'bottom-end' | 'left-end' | 'right-end' | 'auto' | 'auto-start' | 'auto-end' | Function

11. popperTrigger:

| 'click' | 'mousedown' | 'hover' | 'none'

Demo site with sample codes

Demo of ngx-popperjs

Contribute

You can only report bugs. Every other issue will be deleted right away.

  $ npm install
  $ npm run start  //run example

Special thanks

Jetbrains is now supporting this library with an open-source license, which will allow a better code! 🎉

License

This project is licensed under the MIT License - see the LICENSE file for details

Thanks to

MrFrankel for setting up ngx-popper and maintaining till v 7.0.0.