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Update the Modal class to support non-jQuery modals (#900)

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toasted-nutbread 2020-10-08 22:31:58 -04:00 committed by GitHub
parent 41ead7a90a
commit bedcad6ab2
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 39 additions and 5 deletions
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34
ext/bg/js/settings/modal.js
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@ -20,6 +20,9 @@ class Modal extends EventDispatcher {
super();
this._node = node;
this._eventListeners = new EventListenerCollection();
this._mutationObserver = null;
this._visible = false;
this._visibleClassName = 'modal-container-open';
}
get node() {
@ -27,16 +30,32 @@ class Modal extends EventDispatcher {
}
setVisible(value) {
if (this._useJqueryModal()) {
this._getWrappedNode().modal(value ? 'show' : 'hide');
} else {
this._node.classList.toggle(this._visibleClassName, value);
}
}
on(eventName, callback) {
if (eventName === 'visibilityChanged') {
if (this._useJqueryModal()) {
if (this._eventListeners.size === 0) {
const wrappedNode = this._getWrappedNode();
this._eventListeners.on(wrappedNode, 'hidden.bs.modal', this._onModalHide.bind(this));
this._eventListeners.on(wrappedNode, 'shown.bs.modal', this._onModalShow.bind(this));
}
} else {
if (this._mutationObserver === null) {
this._visible = this._node.classList.contains(this._visibleClassName);
this._mutationObserver = new MutationObserver(this._onMutation.bind(this));
this._mutationObserver.observe(this._node, {
attributes: true,
attributeFilter: ['class'],
attributeOldValue: true
});
}
}
}
return super.on(eventName, callback);
}
@ -44,6 +63,10 @@ class Modal extends EventDispatcher {
off(eventName, callback) {
const result = super.off(eventName, callback);
if (eventName === 'visibilityChanged' && !this.hasListeners(eventName)) {
if (this._mutationObserver !== null) {
this._mutationObserver.disconnect();
this._mutationObserver = null;
}
this._eventListeners.removeAllEventListeners();
}
return result;
@ -59,6 +82,17 @@ class Modal extends EventDispatcher {
this.trigger('visibilityChanged', {visible: true});
}
_onMutation() {
const visible = this._node.classList.contains(this._visibleClassName);
if (this._visible === visible) { return; }
this._visible = visible;
this.trigger('visibilityChanged', {visible: false});
}
_useJqueryModal() {
return (typeof jQuery !== 'undefined');
}
_getWrappedNode() {
return $(this._node);
}