зеркало из https://github.com/mozilla/gecko-dev.git
40 строки
1.1 KiB
JavaScript
40 строки
1.1 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* eslint-env mozilla/frame-script */
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/* eslint no-unused-vars: ["error", {args: "none"}] */
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var { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
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var { ActorManagerChild } = ChromeUtils.import(
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"resource://gre/modules/ActorManagerChild.jsm"
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);
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ActorManagerChild.attach(this);
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ChromeUtils.defineModuleGetter(
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this,
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"AutoScrollController",
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"resource://gre/modules/AutoScrollController.jsm"
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);
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var global = this;
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var AutoScrollListener = {
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handleEvent(event) {
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if (event.isTrusted & !event.defaultPrevented && event.button == 1) {
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if (!this._controller) {
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this._controller = new AutoScrollController(global);
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}
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this._controller.handleEvent(event);
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}
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},
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};
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Services.els.addSystemEventListener(
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global,
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"mousedown",
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AutoScrollListener,
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true
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);
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