Ghost/ghost/admin/app/services/modals.js
Kevin Ansfield 4f2af95afe Moved modals service to manual handling of click and escape-to-close
refs https://github.com/TryGhost/Team/issues/559

Click-to-close and escape-to-close functionality in `ember-promise-modals` was deferred to `focus-trap`. For some of our use-cases that wasn't ideal because there was nowhere to hook in if we wanted to abort modal closing for any reason (eg, to show an unsaved changes confirmation)

- bumped the custom fork version of `ember-promise-modals` to allow all focus-trap close-inducing behaviour to be disabled
  - also adds a `beforeClose()` option when opening modals for future use
- changed modals service options that are passed through to `focus-trap` so that all close-inducing behaviour is disabled
- when the first modal is opened add event handlers for clicks and <kbd>Escape</kbd> key presses that should close modals and manually call `.close()` on the top-most modal in the stack
- remove event handlers when the last modal is removed
2021-09-16 20:26:57 +01:00

66 lines
2.1 KiB
JavaScript

import EPMModalsService from 'ember-promise-modals/services/modals';
import {bind} from '@ember/runloop';
import {inject as service} from '@ember/service';
export default class ModalsService extends EPMModalsService {
@service dropdown;
// we manually close modals on backdrop clicks and escape rather than letting focus-trap
// handle it so we can intercept/abort closing for things like unsaved change confirmations
allowOutsideClick = true;
clickOutsideDeactivates = false;
escapeDeactivates = false;
_onFirstModalAdded() {
super._onFirstModalAdded(...arguments);
this.addEventHandlers();
this.dropdown.closeDropdowns();
}
_onLastModalRemoved() {
super._onLastModalRemoved(...arguments);
this.removeEventHandlers();
}
addEventHandlers() {
if (!this.backdropClickHandler) {
this.backdropClickHandler = bind(this, this.handleBackdropClick);
document.body.addEventListener('click', this.backdropClickHandler, {capture: true, passive: false});
}
if (!this.escapeKeyHandler) {
this.escapeKeyHandler = bind(this, this.handleEscapeKey);
document.addEventListener('keydown', this.escapeKeyHandler, {capture: true, passive: false});
}
}
removeEventHandlers() {
document.body.removeEventListener('click', this.backdropClickHandler, {capture: true, passive: false});
this.backdropClickHandler = null;
document.removeEventListener('keydown', this.escapeKeyHandler, {capture: true, passive: false});
this.escapeKeyHandler = null;
}
handleBackdropClick(event) {
let shouldClose = true;
for (const elem of (event.path || event.composedPath())) {
if (elem.matches?.('.modal-content, .ember-basic-dropdown-content')) {
shouldClose = false;
break;
}
}
if (shouldClose) {
this.top.close();
}
}
handleEscapeKey(event) {
if (event.key === 'Escape') {
this.top.close();
}
}
}