fabricjs2 selection error after programmatically resize - fabricjs

Question

I'm using fabrics v2.4.3 in an angular 6 project.
In my project I want to move and resize some objects (a fabric.Group) both by mouse and by properties editing through a form.
The problem is on the second method.
I put an object into the canvas, and I selected it by mouse. Now I'm subscribed to the form valueChanges to apply in real time the new props of the selected object.
this.subscription = this.form.valueChanges.subscribe((value)=>{
this.panelView.setConfig(value);
})
This is the setConfig method:
setConfig(config:PanelParameters){
this.config = config;
let param = {
top: this.config.y,
left: this.config.x,
width: this.view.width, //this.config.width,
height: this.view.height,
scaleX: this.config.width/this.view.width,
scaleY: this.config.height/this.view.height,
fill : this.config.background_color
}
this.view.set(param)
for(let obj of this.view.getObjects()){
if( obj instanceof fabric.Rect){
obj.set({
fill: this.config.background_color
})
}else if( obj instanceof fabric.Text ){
obj.set({
fill: this.config.title_text_color
})
}
}
this.canvas.requestRenderAll();
}
Now into the canvas the object are rendered correctly but if I try to select it
I have to click onto the old object area.
What I'm doing wrong?

Answer 1

You're missing a call to this.view.setCoords().
In fabric.js, mouse interactions are evaluated against an object's oCoords. When you programmatically set object's properties that should result in a change of coordinates, you have to explicitly call setCoords() to recalculate them. See When to call setCoords.