mirror of https://github.com/gorhill/uBlock.git
129 lines
4.1 KiB
JavaScript
129 lines
4.1 KiB
JavaScript
/*******************************************************************************
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uBlock Origin - a browser extension to block requests.
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Copyright (C) 2014-present Raymond Hill
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see {http://www.gnu.org/licenses/}.
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Home: https://github.com/gorhill/uBlock
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*/
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'use strict';
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import { simpleStorage } from './storage.js';
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import { dom, qs$ } from './dom.js';
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/******************************************************************************/
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const discardUnsavedData = function(synchronous = false) {
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const paneFrame = qs$('#iframe');
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const paneWindow = paneFrame.contentWindow;
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if (
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typeof paneWindow.hasUnsavedData !== 'function' ||
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paneWindow.hasUnsavedData() === false
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) {
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return true;
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}
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if ( synchronous ) {
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return false;
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}
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return new Promise(resolve => {
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const modal = document.querySelector('#unsavedWarning');
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dom.cl.add(modal, 'on');
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modal.focus();
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const onDone = status => {
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dom.cl.remove(modal, 'on');
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document.removeEventListener('click', onClick, true);
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resolve(status);
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};
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const onClick = ev => {
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const target = ev.target;
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if ( target.matches('[data-i18n="dashboardUnsavedWarningStay"]') ) {
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return onDone(false);
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}
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if ( target.matches('[data-i18n="dashboardUnsavedWarningIgnore"]') ) {
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return onDone(true);
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}
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if ( modal.querySelector('[data-i18n="dashboardUnsavedWarning"]').contains(target) ) {
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return;
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}
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onDone(false);
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};
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document.addEventListener('click', onClick, true);
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});
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};
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const loadDashboardPanel = function(pane, first) {
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const tabButton = document.querySelector(`[data-pane="${pane}"]`);
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if ( tabButton === null || dom.cl.has(tabButton, 'selected') ) {
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return;
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}
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const loadPane = ( ) => {
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self.location.replace(`#${pane}`);
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for ( const node of document.querySelectorAll('.tabButton.selected') ) {
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dom.cl.remove(node, 'selected');
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}
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dom.cl.add(tabButton, 'selected');
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tabButton.scrollIntoView();
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document.querySelector('#iframe').contentWindow.location.replace(pane);
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if ( pane !== 'no-dashboard.html' ) {
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simpleStorage.setItem('dashboardLastVisitedPane', pane);
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}
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};
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if ( first ) {
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return loadPane();
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}
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const r = discardUnsavedData();
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if ( r === false ) { return; }
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if ( r === true ) {
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return loadPane();
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}
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r.then(status => {
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if ( status === false ) { return; }
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loadPane();
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});
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};
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const onTabClickHandler = function(ev) {
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loadDashboardPanel(dom.attr(ev.target, 'data-pane'));
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};
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if ( self.location.hash.slice(1) === 'no-dashboard.html' ) {
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dom.cl.add(dom.body, 'noDashboard');
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}
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(async ( ) => {
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let pane = null;
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if ( self.location.hash !== '' ) {
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pane = self.location.hash.slice(1) || null;
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}
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loadDashboardPanel(pane !== null ? pane : 'settings.html', true);
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dom.on('#dashboard-nav', 'click', '.tabButton', onTabClickHandler);
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// https://developer.mozilla.org/en-US/docs/Web/API/Window/beforeunload_event
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window.addEventListener('beforeunload', ( ) => {
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if ( discardUnsavedData(true) ) { return; }
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event.preventDefault();
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event.returnValue = '';
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});
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})();
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/******************************************************************************/
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