In search of a solution to enable both dragging and resizing for a mat-dialog. I have successfully implemented the dragging functionality using cdkDrag (DragDropModule). However, when trying to use resize: booth; in CSS, it seems to conflict with the draggable feature. Removing cdk allows resizing to work, but then dragging is disabled, and vice versa.
To view the code, click here: https://stackblitz.com/edit/angular-vp8xt7
When working with your StackBlitz, you may notice a resize handle appearing at the bottom right of the dialog window, indicating that you are on the right track. However, there seems to be an issue where the mouse events are being consumed by the dragging functionality instead of being passed to the resizing functionality.
To resolve this issue, try adding a cdkDragHandle to the h1 element in your code:
<h1 mat-dialog-title cdkDrag cdkDragRootElement=".cdk-overlay-pane" cdkDragHandle>
You can see how this solution works in action by checking out your modified version in the forked StackBlitz.
To make the mat dialog component resizable:
You can apply the following CSS to the panel class:
.custom-mat-dialog-panel .mat-dialog-container {
resize: both;
}
In your TypeScript file:
openDialog() {
this.dialog.open(HelloComponent,{height:'100px',width:'100px', panelClass: 'custom-mat-dialog-panel'});
}
To make the mat dialog component draggable:
<div mat-dialog-title cdkDrag cdkDragRootElement=".cdk-overlay-pane" cdkDragHandle>
Draggable Title
</div>
I encountered similar requirements and challenges.
Here's the solution that worked for me in Angular 13:
Global CSS-File:
.resizable-mat-dialog-panel {
resize: both;
overflow: auto;
max-width: unset !important;
max-height: unset !important;
position: absolute !important;
}
TS File with openDialog:
openDialog() {
this.dialog.open(TestComponent,{height:'100px',width:'100px', panelClass: 'resizable-mat-dialog-panel'});
}
Dialog HTML:
<h1 cdkDrag
cdkDragRootElement=".cdk-overlay-pane"
cdkDragHandle>
Test header
</h1>
...
If position: absolute is not used, full resizing functionality may be restricted. This can lead to issues where resizing a dialog from left to right after moving it from the center becomes problematic. Applying position: absolute resolves this limitation.
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