firefox-main/devtools/client/shared/events.js (file symbol)

Source code

Revision control

Copy as Markdown

Other Tools

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
/**
* Prevent event default behaviour and stop its propagation.
*
* @param {object} event
* Event or react synthetic event.
*/
exports.preventDefaultAndStopPropagation = function (event) {
event.preventDefault();
event.stopPropagation();
if (event.nativeEvent) {
if (event.nativeEvent.preventDefault) {
event.nativeEvent.preventDefault();
}
if (event.nativeEvent.stopPropagation) {
event.nativeEvent.stopPropagation();
}
}
};
/**
* Returns true if the pointer event can perform drag.
*
* We want to handle a drag during a button is pressed. So, we can ignore
* pointer events which are caused by other devices.
*
* @param {PointerEvent} event
* @returns {boolean}
*/
exports.canPointerEventDrag = function (event) {
return event.pointerType == "mouse" || event.pointerType == "pen";
};