Positioning a file drop area discreetly hidden behind a cluttered data-packed table

I have been experimenting with the ngx-file-drop module for Angular 4.

Lately, I have been working on adding a file drop feature to a website that displays data in a table using *ngFor and *ngIf directives. My goal was to create a background drop zone behind the table, of the same size, that only becomes visible when an item is dragged into it. I wanted the drop zone to be indicated by a dotted border. However, I encountered a problem where the dragover event triggered multiple change events, causing the site to load slowly as the data in the table kept reloading.

On my second attempt: I tried making the table invisible (another *ngIf directive) when an item is dragged into the zone to reduce loading items. It seemed to work until I realized that I had positioned the "drop-zone-div" element as absolute, making the table contents, including buttons, inaccessible and unclickable.

Does anyone have suggestions on how to overcome the issues I faced during my first or second attempts?

https://i.sstatic.net/NOkZC.jpg Ideally, I want the functionality to mimic the drag and drop feature seen in Jira..

Answer №1

Resolution In order to improve user experience, I have implemented a feature where the table and header are hidden when dragging files across the page. Additionally, I have included a placeholder within the table that is only visible during the dragging process to ensure the page maintains its size.

Utilizing JavaScript, I have written code to calculate the necessary size for the placeholder element.

const targetElement = document.getElementByClassName('target-class')[0];

const elementHeight = targetElement.clientHeight;

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