Tooltip stay visible when the component attached to is removed

Issue type

I’m submitting a … (check one with “x”)

• bug report
• feature request

Issue description

Adding a tooltip to a button that submit a form, when this form dissapear, the tooltip stay alive and visible in the location where the button was

Current behavior: When an element with a tooltip attached is removed, the tooltip stay visible. It happens with popover as well

Expected behavior: When an element with a tooltip attached is removed, the tooltip should dissapear.

Steps to reproduce: The easy steps to reproduce are:

1. Create an element. Add any tooltip.
2. With a browser, inspect the element that have a tooltip.
3. Put the mouse pointer over the element to show tooltip.
4. Press “delete” key to remove the element.

It happen with the demos on nebular documentation

Angular, Nebular

"dependencies": {
    "@angular/animations": "^7.0.3",
    "@angular/cdk": "^7.0.3",
    "@angular/common": "^7.0.3",
    "@angular/compiler": "^7.0.3",
    "@angular/core": "^7.0.3",
    "@angular/forms": "^7.0.3",
    "@angular/http": "^7.0.3",
    "@angular/platform-browser": "^7.0.3",
    "@angular/platform-browser-dynamic": "^7.0.3",
    "@angular/router": "^7.0.3",
    "@nebular/bootstrap": "3.1.0",
    "@nebular/security": "3.1.0",
    "@nebular/theme": "3.1.0",
    "@ng-dynamic-forms/core": "^7.0.1",
    "@ng-dynamic-forms/ui-bootstrap": "^7.0.1",
    "bootstrap": "4.0.0",
    "classlist.js": "1.1.20150312",
    "core-js": "2.5.1",
    "eva-icons": "^1.1.0",
    "intl": "1.2.5",
    "ionicons": "2.0.1",
    "nebular-icons": "1.1.0",
    "normalize.css": "6.0.0",
    "pace-js": "1.0.2",
    "roboto-fontface": "0.8.0",
    "@fortawesome/fontawesome-free": "^5.2.0",
    "rxjs": "6.3.0",
    "rxjs-compat": "6.3.0",
    "socicon": "3.0.5",
    "typeface-exo": "0.0.22",
    "web-animations-js": "2.2.5",
    "zone.js": "^0.8.26",
    "@agm/core": "^1.0.0-beta.5",
    "@ng-bootstrap/ng-bootstrap": "^4.0.0",
    "angular2-text-mask": "^8.0.4",
    "ngx-bootstrap": "^3.1.1"
  },

[suppadeliux]

Up! I have exactly the same issue. In my case I use the tooltip inside a nb-select, and whenever I click outside the options of the select, the options hide as expected, but the tooltip stays at the left top of my screen!

[GreedyA1]

@nnixaa Here is the reproduction for the problem. Couldn’t find any other related issues on this topic on Github. Can we reopen this issue?

https://stackblitz.com/edit/github-tti3eb