settings.js

var storage = new LocalStorage();

document.addEventListener('DOMContentLoaded', function () {
    document.getElementById('settingsBtn').addEventListener('click', function () {
        document.getElementById('settingsBtn').classList.add('active');
        document.getElementById('aboutBtn').classList.remove('active');

        document.getElementById('settingsBlock').hidden = false;
        document.getElementById('aboutBlock').hidden = true;
    });
    document.getElementById('aboutBtn').addEventListener('click', function () {
        document.getElementById('settingsBtn').classList.remove('active');
        document.getElementById('aboutBtn').classList.add('active');

        document.getElementById('settingsBlock').hidden = true;
        document.getElementById('aboutBlock').hidden = false;
    });
    document.getElementById('clearAllData').addEventListener('click', function () {
        clearAllData();
    });
    document.getElementById('addBlackSiteBtn').addEventListener('click', function () {
        addNewBlackSite();
    });
    document.getElementById('viewTimeInBadge').addEventListener('change', function () {
        storage.saveSettings(SETTINGS_VIEW_TIME_IN_BADGE, this.checked);
    });
    document.getElementById('intervalInactivity').addEventListener('change', function () {
        storage.saveSettings(SETTINGS_INTERVAL_INACTIVITY, this.value);
    });
    document.getElementById('rangeToDays').addEventListener('change', function () {
        storage.saveSettings(SETTINGS_INTERVAL_RANGE, this.value);
    });
});

loadSettings();

function loadSettings() {
    storage.getSettings(SETTINGS_INTERVAL_INACTIVITY, function (item) {
        document.getElementById('intervalInactivity').value = item;
    });
    storage.getSettings(SETTINGS_INTERVAL_RANGE, function (item) {
        document.getElementById('rangeToDays').value = item;
    });
    storage.getSettings(SETTINGS_VIEW_TIME_IN_BADGE, function (item) {
        document.getElementById('viewTimeInBadge').setAttribute('checked', item);
    });
    storage.getMemoryUse(STORAGE_TABS, function (integer) {
        document.getElementById('memoryUse').innerHTML = (integer / 1024).toFixed(2) + 'Kb';
    })
}

function clearAllData() {
    var tabs = [];
    chrome.extension.getBackgroundPage().tabs = tabs;
    storage.saveTabs(tabs, viewNotify);
}

function viewNotify() {
    document.getElementById('notify').hidden = false;
    setTimeout(function () { document.getElementById('notify').hidden = true; }, 3000);
}

function addNewBlackSite() {
    var newBlackSite = document.getElementById('addBlackSiteLbl').value;
    if (newBlackSite !== '') {
        var count = document.getElementById('blackList').getElementsByTagName('li').length;
        var li = document.createElement('li');
        li.innerHTML = newBlackSite;
        li.value = count++;
        var del = document.createElement('img');
        del.height = 12;
        del.src = '/icons/delete.png';
        del.value = count++;
        document.getElementById('blackList').appendChild(li).appendChild(del);
        document.getElementById('addBlackSiteLbl').value = '';
    }
}