Angularjs handler on resize9/7/2023 ![]() ![]() So we will need to and boundary restrictions to limit our mouse movements. Add boundary restrictions into moving & resizing actionsĪs we can see from last section, the movement and resizing sometimes will go to outside of the container. const Īfter that, we will need to bind the new width and height to the style variables. The Element.getBoundingClientRect() method returns the size of an element and its position relative to the viewport. To get the box’s initial X & Y coordinates, we can use Web API getBoundingClientRect(). pseudocode: newWidth = mouseX - boxLeft pseudocode: newHeight = mouseY - boxTop The core of resizing is to recalculate the box’s width and height by subtracting the box’s initial x & y coordinates (left and top values) from our mouse’s current X & Y coordinates. 1.2 Add resize logics into the componentĪfter component initialization, we need to add some resize logics. public width: number public height: number public left: number public top: number
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