What is the best way to access the width of the top-level parent div and adjust the widths of its child and parent divs according

Question

What is the best way to access the width of the top-level parent div and adjust the widths of its child and parent divs according

I'm currently working on creating a custom directive in Angular 4 to enable resizing of a div.

Here's the HTML code snippet:

<div class="super-parent">
    <div class="parent">
        My Div content
        <div class="child" resizer></div>
    </div>
</div>

And here is the method for the directive:

  resizer(offsetX: number) {
    this.width += offsetX;
    this.el.nativeElement.parentNode.style.width = this.width + "px";
  }

Prior to setting the parent node's width, I'm searching for a way to determine the width percentage of the super parent div. Is there a way to achieve this?

Appreciate any assistance in advance...

javascript html css angular

Answer 1

Answer №1

Utilize Resize Observer to Determine Parent Div Width and Dynamically Adjust Child

For more information on Polyfill: https://developers.google.com/web/updates/2016/10/resizeobserver

A ResizeObserver serves as an event handler that receives an array of DOM nodes that have undergone changes based on this handler

Begin by Installing the polyfill for Resize Observer

npm install resize-observer-polyfill --save-dev

Next, import it into polyfill.ts

import * as ResizeObserver from 'resize-observer-polyfill';

Now, use ResizeObserver to dynamically adjust the width of your div

var observer = new ResizeObserver( resizeObserverEntries => {
    for (let entry of resizeObserverEntries) {
        const rect = entry.contentRect;
        console.log('Element:', entry.target);
        console.log(`Element size: ${rect.width}px x ${rect.height}px`);
        console.log(`Element padding: ${rect.top}px ; ${rect.left}px`);
    }
});

observer.observe(domElement);
observer.observe(anotherDomElement);

Answer 2

Utilize Resize Observer to Determine Parent Div Width and Dynamically Adjust Child

For more information on Polyfill: https://developers.google.com/web/updates/2016/10/resizeobserver

A ResizeObserver serves as an event handler that receives an array of DOM nodes that have undergone changes based on this handler

Begin by Installing the polyfill for Resize Observer

npm install resize-observer-polyfill --save-dev

Next, import it into polyfill.ts

import * as ResizeObserver from 'resize-observer-polyfill';

Now, use ResizeObserver to dynamically adjust the width of your div

var observer = new ResizeObserver( resizeObserverEntries => {
    for (let entry of resizeObserverEntries) {
        const rect = entry.contentRect;
        console.log('Element:', entry.target);
        console.log(`Element size: ${rect.width}px x ${rect.height}px`);
        console.log(`Element padding: ${rect.top}px ; ${rect.left}px`);
    }
});

observer.observe(domElement);
observer.observe(anotherDomElement);

Answer 3

Answer №2

My approach to this was using vanilla JavaScript as shown below

this.el.nativeElement.parentNode.parentNode.style.width

Answer 4

My approach to this was using vanilla JavaScript as shown below

this.el.nativeElement.parentNode.parentNode.style.width

Answer 5

Answer №3

To accomplish this using jQuery, you can use the following code:

$(this).parent().parent().width();

Answer 6

To accomplish this using jQuery, you can use the following code:

$(this).parent().parent().width();

What is the best way to access the width of the top-level parent div and adjust the widths of its child and parent divs according

Answer №1

Answer №2

Answer №3

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