142 lines
3.9 KiB
JavaScript
142 lines
3.9 KiB
JavaScript
/** \file
|
|
* \brief Wrappers for Idle Detection API
|
|
*
|
|
* \see https://wicg.github.io/idle-detection/
|
|
*
|
|
* \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
|
|
*
|
|
* \see https://web.dev/idle-detection/
|
|
* \see https://developer.mozilla.org/en-US/docs/Web/API/IdleDetector
|
|
*
|
|
* The Idle Detection API can detect inactive users and locked screens.
|
|
* JShelter either removes the API (IdleDetector), or disables permission
|
|
* requests and returns user activity and unlocked screen (for previously
|
|
* granted permissions), or just always report user activity and unlocked
|
|
* screen.
|
|
*
|
|
* \bug JShelter does not block events, so the page is notified that
|
|
* something changed but it cannot read what changed.
|
|
*/
|
|
|
|
/*
|
|
* Create private namespace
|
|
*/
|
|
(function() {
|
|
var setArgs = `
|
|
var deleteapi = (args[0] === 2);
|
|
var disableapi = (args[0] === 1);
|
|
var confuse = (args[0] === 0);
|
|
`;
|
|
var wrappers = [
|
|
{
|
|
parent_object: "window",
|
|
parent_object_property: "IdleDetector",
|
|
wrapped_objects: [],
|
|
helping_code: setArgs,
|
|
apply_if: "deleteapi",
|
|
post_wrapping_code: [
|
|
{
|
|
code_type: "delete_properties",
|
|
parent_object: "window",
|
|
delete_properties: ["IdleDetector"],
|
|
}
|
|
],
|
|
},
|
|
{
|
|
parent_object: "IdleDetector",
|
|
parent_object_property: "requestPermission",
|
|
wrapped_objects: [],
|
|
helping_code: setArgs,
|
|
apply_if: "disableapi",
|
|
wrapping_function_args: "",
|
|
wrapping_function_body: `
|
|
return Promise.resolve('denied');
|
|
`,
|
|
},
|
|
{
|
|
parent_object: "IdleDetector.prototype",
|
|
parent_object_property: "screenState",
|
|
helping_code: setArgs + `let originalF = Object.getOwnPropertyDescriptor(IdleDetector.prototype, "screenState").get;`,
|
|
apply_if: "disableapi || confuse",
|
|
post_wrapping_code: [
|
|
{
|
|
code_type: "object_properties",
|
|
parent_object: "IdleDetector.prototype",
|
|
parent_object_property: "screenState",
|
|
wrapped_objects: [],
|
|
/** \brief replaces IdleDeadline.prototype.didTimeout getter
|
|
*/
|
|
wrapped_properties: [
|
|
{
|
|
property_name: "get",
|
|
property_value: `
|
|
function() {
|
|
if (disableapi) {
|
|
return null;
|
|
}
|
|
let orig = originalF.call(this);
|
|
if (orig === null) {
|
|
return orig;
|
|
}
|
|
return 'unlocked';
|
|
}`,
|
|
},
|
|
],
|
|
}
|
|
],
|
|
},
|
|
{
|
|
parent_object: "IdleDetector.prototype",
|
|
parent_object_property: "userState",
|
|
helping_code: setArgs + `let originalF = Object.getOwnPropertyDescriptor(IdleDetector.prototype,"userState").get;`,
|
|
apply_if: "disableapi || confuse",
|
|
post_wrapping_code: [
|
|
{
|
|
code_type: "object_properties",
|
|
parent_object: "IdleDetector.prototype",
|
|
parent_object_property: "userState",
|
|
wrapped_objects: [],
|
|
/** \brief replaces IdleDeadline.prototype.didTimeout getter
|
|
*/
|
|
wrapped_properties: [
|
|
{
|
|
property_name: "get",
|
|
property_value: `
|
|
function() {
|
|
if (disableapi) {
|
|
return null;
|
|
}
|
|
let orig = originalF.call(this);
|
|
if (orig === null) {
|
|
return orig;
|
|
}
|
|
return 'active';
|
|
}`,
|
|
},
|
|
],
|
|
}
|
|
],
|
|
},
|
|
]
|
|
add_wrappers(wrappers);
|
|
})();
|