feature request : add ability to suppress tooltip on focus.

[monkeyhouse]

I'd like like the ability to not show the tooltip when a user focuses an input or button eg : via keyboard, or after it is pressed. But, I want it to still display when the user uses the mouse to hover over or click the input and/or button.

Explanation :
Normally, I like the default behavior - when the user focuses on an element, the tooltip shows. This is great. But I want the ability to disable it for some elements, because, sometimes I need the tooltip to respond to the mouse only.

Is this something you are interested in implementing or should I fork it?

Implementation Strategy :

In file projects/ng2-tooltip-directive/src/lib/tooltip.directive.ts (1) split the mouse enter method into onMouseEnter and onFocusIn into two seperate methods (2) add isDisplayOnFocus getter and (3) add a focusTigger option ( minor modifications in a few files )

@HostListener('mouseenter')
onMouseEnter() {
    if (this.isDisplayOnHover == false) {
        return;
    }

    this.show();
}



@HostListener('focusin')
onFocusIn() {
    if (this.isDisplayOnFocus == false) {
        return;
    }

    this.show();
}

get isDisplayOnFocus(): boolean {
    if (this.options['display'] == false) {
        return false;
    }

    if (this.options['displayTouchscreen'] == false && this.isTouchScreen) {
        return false;
    }

    if (this.options['focusTigger'] === false ) {
        return false;
    }

    return true;
}

---

options.ts
->
defaultOptions = {
...
focusTrigger : true
}

options.interface.ts
export interface TooltipOptions = {
...
focusTrigger? : boolean
}