uBlock/src/js/dashboard.js
2020-04-24 20:10:35 -04:00

130 lines
4.1 KiB
JavaScript

/*******************************************************************************
uBlock Origin - a browser extension to block requests.
Copyright (C) 2014-present Raymond Hill
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 {http://www.gnu.org/licenses/}.
Home: https://github.com/gorhill/uBlock
*/
/* global uDom */
'use strict';
/******************************************************************************/
{
// >>>>> start of local scope
/******************************************************************************/
const discardUnsavedData = function(synchronous = false) {
const paneFrame = document.getElementById('iframe');
const paneWindow = paneFrame.contentWindow;
if (
typeof paneWindow.hasUnsavedData !== 'function' ||
paneWindow.hasUnsavedData() === false
) {
return true;
}
if ( synchronous ) {
return false;
}
return new Promise(resolve => {
const modal = uDom.nodeFromId('unsavedWarning');
modal.classList.add('on');
modal.focus();
const onDone = status => {
modal.classList.remove('on');
document.removeEventListener('click', onClick, true);
resolve(status);
};
const onClick = ev => {
const target = ev.target;
if ( target.matches('[data-i18n="dashboardUnsavedWarningStay"]') ) {
return onDone(false);
}
if ( target.matches('[data-i18n="dashboardUnsavedWarningIgnore"]') ) {
return onDone(true);
}
if ( modal.querySelector('[data-i18n="dashboardUnsavedWarning"]').contains(target) ) {
return;
}
onDone(false);
};
document.addEventListener('click', onClick, true);
});
};
const loadDashboardPanel = function(pane, first) {
const tabButton = uDom.nodeFromSelector(`[data-pane="${pane}"]`);
if ( tabButton === null || tabButton.classList.contains('selected') ) {
return;
}
const loadPane = ( ) => {
self.location.replace(`#${pane}`);
uDom('.tabButton.selected').toggleClass('selected', false);
tabButton.classList.add('selected');
tabButton.scrollIntoView();
uDom.nodeFromId('iframe').setAttribute('src', pane);
vAPI.localStorage.setItem('dashboardLastVisitedPane', pane);
};
if ( first ) {
return loadPane();
}
const r = discardUnsavedData();
if ( r === false ) { return; }
if ( r === true ) {
return loadPane();
}
r.then(status => {
if ( status === false ) { return; }
loadPane();
});
};
const onTabClickHandler = function(ev) {
loadDashboardPanel(ev.target.getAttribute('data-pane'));
};
// https://github.com/uBlockOrigin/uBlock-issues/issues/106
vAPI.messaging.send('dashboard', {
what: 'canUpdateShortcuts',
}).then(response => {
document.body.classList.toggle('canUpdateShortcuts', response === true);
});
vAPI.localStorage.getItemAsync('dashboardLastVisitedPane').then(value => {
loadDashboardPanel(value !== null ? value : 'settings.html', true);
uDom('.tabButton').on('click', onTabClickHandler);
// https://developer.mozilla.org/en-US/docs/Web/API/Window/beforeunload_event
window.addEventListener('beforeunload', ( ) => {
if ( discardUnsavedData(true) ) { return; }
event.preventDefault();
event.returnValue = '';
});
});
/******************************************************************************/
// <<<<< end of local scope
}