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Participant
September 25, 2019
Question

CC Animate HTML5 Canvas - Bring Button to Front on Click

  • September 25, 2019
  • 1 reply
  • 2353 views

I have two buttons on a canvas. They are slightly overlapping. When the user clicks on one button, I would like that button to be brought to the top (or in front) of the other button. 

 

So, a click on a button should always bring it to the top so the whole button is visible to the user. 

 

Thanks for any any help on this!

    1 reply

    JoãoCésar17023019
    Community Expert
    Community Expert
    September 26, 2019

    Hi.

     

    You can use the addChild or setChildIndex method from the createjs.Container class. In this case, you're going to call one of these two methods from the buttons parent.

     

    Examples:

     

    addChild approach (ES5 syntax):

    this.bringToFront = function(e)
    {
        e.currentTarget.parent.addChild(e.currentTarget);
    };
    
    this.button0.on("click", this.bringToFront);
    this.button1.on("click", this.bringToFront);

     

    addChild approach (ES6 syntax):

    this.bringToFront = e => e.currentTarget.parent.addChild(e.currentTarget);
    this.button0.on("click", this.bringToFront);
    this.button1.on("click", this.bringToFront);

     

    setChildIndex approach (ES5 syntax):

    this.bringToFront = function(e)
    {
        e.currentTarget.parent.setChildIndex(e.currentTarget, e.currentTarget.parent.numChildren - 1);
    };
    
    this.button0.on("click", this.bringToFront);
    this.button1.on("click", this.bringToFront);

     

    setChildIndex approach (ES6 syntax):

    this.bringToFront = e => e.currentTarget.parent.setChildIndex(e.currentTarget, e.currentTarget.parent.numChildren - 1);
    this.button0.on("click", this.bringToFront);
    this.button1.on("click", this.bringToFront);

     

    I hope this helps.

     

    Regards,

    JC

    Participant
    September 27, 2019
    Thank you so much!! I will try it out, and report back 🙂