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-/** \file
- * \brief Wrappers for Cooperative Scheduling of Background Tasks API
- *
- * \see https://w3c.github.io/requestidlecallback/#the-requestidlecallback-method
- *
- * \author Copyright (C) 2022 Libor Polcak
- *
- * \license SPDX-License-Identifier: GPL-3.0-or-later
- */
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see <https://www.gnu.org/licenses/>.
-//
-
-/** \file
- * \ingroup wrappers
- *
- * The `window.requestIdleCallback()` API can schedule background tasks
- * such that they do not introduce delays to other high priority tasks
- * that share the same event loop, such as input processing, animations
- * and frame compositing.
- *
- * But the API leaks information about the other tasks running in the
- * browser as it leaks information on currently scheduled tasks, vsync
- * deadlines, user-interaction and so on.
- *
- * JShelter modifies the return call to:
- *
- * 1. Never leak the information that the call was triggered by an
- * expired timeout.
- * 2. Fake the information on remaining time in synchronization with the
- * `Date.now()` wrapper. Returns up to 50% more time compared to the
- * original value.
- */
-
-/*
- * Create private namespace
- */
-(function() {
- var wrappers = [
- {
- parent_object: "IdleDeadline.prototype",
- parent_object_property: "didTimeout",
- wrapped_objects: [],
- helping_code: ``,
- post_wrapping_code: [
- {
- code_type: "object_properties",
- parent_object: "IdleDeadline.prototype",
- parent_object_property: "didTimeout",
- wrapped_objects: [],
- /** \brief replaces IdleDeadline.prototype.didTimeout getter
- */
- wrapped_properties: [
- {
- property_name: "get",
- property_value: `
- function() {
- return false;
- }`,
- },
- ],
- }
- ],
- },
- {
- parent_object: "IdleDeadline.prototype",
- parent_object_property: "timeRemaining",
- wrapped_objects: [
- {
- original_name: "IdleDeadline.prototype.timeRemaining",
- wrapped_name: "originalF",
- },
- ],
- helping_code: "var lastEnd = 0;",
- wrapping_function_args: "",
- wrapping_function_body: `
- let ret;
- let now = Date.now();
- if (now > lastEnd) {
- let originalTimeR = originalF.call(this);
- ret = prng() * originalTimeR * 1.5;
- lastEnd = now + ret;
- }
- else {
- ret = lastEnd - now;
- }
- return ret;
- `,
- },
- ]
- add_wrappers(wrappers);
-})();