I have a chrome extension with options.js and popup.js.
I have a setting that I want the user to control both from options and popup alternatively.
In options it's straight forward:
options.html
<!DOCTYPE html>
<html>
<head><title>Random options placeholder</title></head>
<body>
<label>
<input type="checkbox" id="activate">
Active
</label>
<div id="status"></div>
<button id="save">Save</button>
<script src="options.js"></script>
</body>
</html>
options.js
function save_options() {
var isActive = document.getElementById('activate').checked;
chrome.storage.sync.set({
isActive: true
}, function() {
// Update status to let user know options were saved.
var status = document.getElementById('status');
status.textContent = 'Options saved.';
setTimeout(function() {
status.textContent = '';
}, 750);
});
}
but in popup.js I don't understand how to use the chrome.storage.sync.set
to update the same shared value (isActive).
popup.js (fail)
var isActive = document.getElementById('activate').checked;
chrome.storage.sync.set({
isActive: true
});
Any suggestions?
Related
When I click on the toolbar icon from my chrome extension, it brings up the default popup.html along with popup.js. From that popup.js, I want to send a message to the current active tab. I can't figure out how to get the active tab.
My code in the popup.js looks like this:
window.onload = function() {
console.log(`popup.js:window.onload`);
const timeNow = document.getElementById("timeNowId");
timeNow.innerText = new Date().toLocaleTimeString();
var resultsButton = document.getElementById("buttonId");
resultsButton.onclick = () => {
chrome.runtime.sendMessage(
"FromPopupToBackgroundToContent:" + timeNow.innerText,
function(response) {
response === undefined
? alert("popup.js:return from sendMessage:undefined")
: alert("popup.js:return from sendMessage:", response);
}
);
};
};
The full, non-working example is in this github repo at this branch linked to.
https://github.com/pkellner/chrome-extension-message-popup-to-content/tree/feature-popup-to-content-directly-getcurrent
Example:
popup.js
function popup() {
chrome.tabs.query({currentWindow: true, active: true}, function (tabs){
var activeTab = tabs[0];
chrome.tabs.sendMessage(activeTab.id, {"message": "start"});
});
}
document.addEventListener("DOMContentLoaded", function() {
document.getElementById("button1").addEventListener("click", popup);
});
content.js
chrome.runtime.onMessage.addListener(
function(request, sender, sendResponse) {
if( request.message === "start" ) {
start();
}
}
);
function start(){
alert("started");
}
popup.html
<!DOCTYPE html>
<html>
<head></head>
<script src="popup.js"></script>
<body>
<input id="button1" type=button value=clickme>
</body>
</html>
In my NodeJs route, I have the following:
router.get('/list/:id', function(req, res, next) {
request("http://localhost:3000/api/journal/" + req.params.id, function(error, response, body) {
var json = JSON.parse(body);
res.render('listdetail', { title: 'Journal', data: json });
});
});
The data is a json object containing all my screen fields. One of the fields is a base64 presentation of an image.
Then, in my List Detail html I have the following:
<div id="app">
<img class="materialboxed" src="{{data.base64Image}}" width="200">
</div>
This is surely not working... How can I add to the src attribute the base64 information that was sent by NodeJS?
I tried also the following:
<img class="materialboxed" :src=imagebase64Source width="200">
<script type="text/javascript">
var app = new Vue({
el: '#app',
data: {
imagebase64Source: {{data.base64Image}}
}
})
</script>
But it obviously does not work
Thanks
EDIT:
Strange, it's working now!
Here's what I've done:
<img class="materialboxed" src="{{ data.base64Image }}" width="200">
The only difference I can see is the spacing between the mustache.
Thanks to all who helped.
You can do it simply like this:
<template>
<div>
<img :src="image"/>
</div>
</template>
<script>
module.exports = {
data: function() {
return {
image: //your b64 string there
};
}
};
</script>
Pay attention by the way, depending on what you have on your string, you may have to add a header to the raw string.
<template>
<div>
<img :src="imgWithHeader"/>
</div>
</template>
<script>
module.exports = {
data: function() {
return {
image: //your b64 string there
};
},
computed: {
imgWithHeader() {
return 'data:' + MIMETypeOfTheImage + ';base64,' + this.image;
}
}
};
</script>
Of course you should figure out what is the type of the image, in this case.
I think the method you tried should work if the syntax is corrected
So this:
<img class="materialboxed" :src=imagebase64Source width="200">
<script type="text/javascript">
var app = new Vue({
el: '#app',
data: {
imagebase64Source: {{data.base64Image}}
}
})
</script>
should be changed to this:
<img class="materialboxed" :src="imagebase64Source" width="200">
<script type="text/javascript">
var app = new Vue({
el: '#app',
data () {
return {
imagebase64Source: data.base64Image,
}
}
})
</script>
It's giving me cannot read property of undefined error in server.js file at this line
io.nsps['/'].adapter.rooms[roomName].length;
I want to display all the names of users those are connected in the chat room..
I take user name and room name by prompt when first time loads the page...
I am using socket.io v1.5.1
I have tried almost all the codes that are available for >v1.0 but i failed.
Here is my code..
server.js
var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);
var express = require('express');
app.use(express.static('public'));
io.on('connection', function(socket){
var userName = null;
var roomName = null;
//creating chat room
socket.on('createRoom',function(data){
userName = data.userName;
//creating or joining room
socket.join(data.roomName);
roomName = data.roomName;
//broadcasting new user joined to all other sockets in room
socket.broadcast.in(data.roomName).emit('user joined','<span style="color:#10c469 !important;"><strong>'+userName+'</strong> has joined chatroom.</span><br>');
});
var userLength = io.nsps['/'].adapter.rooms[roomName].length;
//Server receives message from client
socket.on('messageForServer',function(data){
//will alert all users
socket.emit('all users',userLength);
io.sockets.in(data.roomName).emit('messageToBeDisplayed','<strong>'+data.userName+'</strong> : '+data.message+'<br>');
});
//when user is typing
socket.on('userIsTyping',function(data){
socket.broadcast.in(roomName).emit('userIsStillTyping','<span style="color:#ff4242 !important;"<strong>'+userName+'</strong></span> is typing...</br>');
});
//when user stops typing
socket.on('noLongerTyping',function(data){
socket.broadcast.in(roomName).emit('userIsNotTyping');
});
//when user gets bored
socket.on('disconnect',function(){
socket.broadcast.in(roomName).emit('disconnected','<span style="color:#ff4242 !important;"<strong>'+userName+'</strong> has left the chat room.</span><br>');
});
});
http.listen(3000, function(){
console.log('listening on localhost:3000');
});
index.html
<!DOCTYPE html>
<html>
<head>
<title>ChatterBox</title>
<link rel="stylesheet" type="text/css" href="bootstrap/css/bootstrap.css">
<link rel="stylesheet" type="text/css" href="bootstrap/css/main.css">
<link rel="stylesheet" type="text/css" href="css/core.css">
<link rel="stylesheet" type="text/css" href="css/components.css">
</head>
<style>
.bottom{
position: fixed;
text-align: center;
bottom: 10px;
width: 100%;
}
.wrapper{
padding-top: 4%;
}
</style>
<body>
<div class="container">
<div class="row">
<nav class="navbar navbar-default navbar-fixed-top">
ChatterBox
</nav>
<div class="wrapper">
<div class="col-md-7 col-md-offset-2">
<div id="message-container"></div>
</div>
<div class="col-md-3">
<div id="typer-container"></div>
</div>
<div class="form-group bottom">
<div class="col-md-7 col-md-offset-2">
<input type="text" id="message" class="form-control" placeholder="Enter message here">
</div>
<div class="col-md-1">
<button type="button" onclick="sendMessage()" class="btn btn-trans btn-inverse waves-effect w-md waves-light m-b-5">Send</button>
</div>
</div>
</div>
</div>
</div>
</body>
<script type="text/javascript" src="js/jquery.min.js"></script>
<script type="text/javascript" src="js/app.js"></script>
<script src="/socket.io/socket.io.js"></script>
<script>
//initialize socket library and its object
var socket = io();
//taking input from user
var roomName = prompt("Enter name of chat room that you want to create or join");
var userName = prompt("Enter your username");
//create chat room
socket.emit('createRoom',{roomName:roomName,userName:userName});
//when user joins the chat room
socket.on('user joined',function(data){
document.getElementById('message-container').innerHTML += data;
});
//to display when user leave chat room
socket.on('disconnected',function(data){
document.getElementById('message-container').innerHTML += data;
});
//Press enter to send message code
$('#message').keypress(function(event){
if(event.which == 13){
sendMessage();
}
});
//Send message to server
function sendMessage()
{
var msg = document.getElementById('message').value;
document.getElementById('message').value = '';
if(msg){
socket.emit('messageForServer', {message: msg, roomName:roomName,userName: userName});
}
}
var typing = false;
var timeout = undefined;
//when user is no longer typing
function timeoutFunction(){
typing = false;
socket.emit('noLongerTyping');
}
function onKeyDownNotEnter(){
if(typing == false) {
typing = true;
socket.emit('userIsTyping',userName+' is typing...');
timeout = setTimeout(timeoutFunction, 5000);
} else {
clearTimeout(timeout);
timeout = setTimeout(timeoutFunction, 5000);
}
}
//User is typing functionality
$('#message').keyup(function(event){
if(event.which != 13 && userName != ''){
onKeyDownNotEnter();
}
});
socket.on('all users',function(data){
alert(data);
});
//users will see who is typing from this code
socket.on('userIsStillTyping',function(data){
document.getElementById('typer-container').innerHTML += data;
});
//remove user is typing
socket.on('userIsNotTyping',function(){
document.getElementById('typer-container').innerHTML = '';
});
//Display broadcasted message
socket.on('messageToBeDisplayed',function(data){
document.getElementById('message-container').innerHTML += data;
});
</script>
</html>
You can try this:
//Server receives message from client
socket.on('messageForServer',function(data){
//will alert all users
var userLength = io.nsps['/'].adapter.rooms[roomName].length;
socket.emit('all users',userLength);
io.sockets.in(data.roomName).emit('messageToBeDisplayed','<strong>'+data.userName+'</strong> : '+data.message+'<br>');
});
But it does not display the names of the connected users but only their number.
i am facing problem with knockout basic textbox validation
Here is my html
<input type="text" data-bind="value:text" />
<br />
<br />
<input type="button" data-bind="click:save" value="save" />
Here is my script
$(document).ready(function () {
ko.validation.registerExtenders();
ko.validation.configure({
registerExtenders: true,
decorateElement: true
});
var vm = ko.validatedObservable({
text: ko.observable().extend({
required: true
}),
save: function () {
debugger;
if (this.isValid()) {
alert('success');
}
else {
this.errors.showAllMessages();
alert('error');
}
}
});
ko.applyBindings(vm);
});
I have included below scripts
<script src="/Scripts/jquery-2.1.1.min.js" type="text/javascript"></script>
<script src="/Scripts/knockout-2.1.0.js" type="text/javascript"></script>
<script src="/Scripts/knockout.mapping-latest.js" type="text/javascript"></script>
<script src="/Scripts/knockout.validation.min.js" type="text/javascript"></script>
when i run this i am getting 'Undefined is not a function' at "this.isValid()"
Please help me.
I prefer this pattern to use validatedObservable - http://codepen.io/dmoojunk/pen/PwNbEL
ko.validation.registerExtenders();
ko.validation.configure({
registerExtenders: true,
decorateElement: true
});
var vm = function(){
var self = this;
self.text= ko.observable().extend({
required: true
}),
self.save= function () {
if (this.isValid()) {
alert('success');
}
else {
this.errors.showAllMessages();
alert('error');
}
}
};
var viewmodel = ko.validatedObservable(new vm())();
ko.applyBindings(viewmodel);
I am in need to a show 2 pop ups on 2 different situation.Presently I am checking a server file and storing its credentials in a localStorage.Each time when the user clicks on the extension,it should check if the localStorage is empty or not.If it is empty,then a pop up should be seen and asks for his username.this is stored in localstorage.Next time when the user clicks on the icon,the localstorage is not empty,so it should show another pop up showind a field for username with 2 buttons namely 'change settings' and 'go to website'.When the user clicks on change settings,again the popup shuuld appear asking user name.If he clicks go to website,it should navigate to a website.How can this be done?please help me.I have tried button the button is not working.And also the 2nd pop up is always shown only on reloading the extension.Please help me.
Here is my background.js
here is my updated popup.js
window.addEventListener('DOMContentLoaded', function() {
var divLoading = document.querySelector('div#loadingContainer');
var divSettings = document.querySelector('div#settingsContainer');
var divLoggedIn = document.querySelector('div#loggedInContainer');
var divChange = document.querySelector('div#settingsChange');
var user1 = divSettings.querySelector('input#user1');
var form = divSettings.querySelector('form#userinfo');
var user2 = divLoggedIn.querySelector('span#user2');
var change = divLoggedIn.querySelector('input#change');
var calpine = divLoggedIn.querySelector('input#calpine');
var user3 = divChange.querySelector('input#user3');
var form3 = divChange.querySelector('input#changeset');
var cancel = divChange.querySelector('input#emailcancel');
var user = localStorage.username;
if (user) {
// user1.value = user2.value = user;
user1.value = user2.textContent = user;
user3.value = user;
divLoggedIn.style.display = 'block';
divSettings.style.display = 'none';
divChange.style.display = 'none';
} else {
divSettings.style.display = 'block';
divChange.style.display = 'none';
divLoggedIn.style.display = 'none';
user1.focus();
user1.select();
}
divLoading.style.display = 'none';
form.addEventListener('submit', function(evt) {
evt.preventDefault();
var userStr = user1.value;
chrome.runtime.getBackgroundPage(function(bgPage) {
bgPage.login(userStr);
});
window.close();
});
form3.addEventListener('click', function() {
var userStr = user3.value;
chrome.runtime.getBackgroundPage(function(bgPage) {
bgPage.login(userStr);
});
window.close();
});
change.addEventListener('click', function(evt) {
divLoggedIn.style.display = 'none';
divSettings.style.display = 'none';
divChange.style.display = 'block';
user3.focus();
user3.select();
});
cancel.addEventListener('click', function() {
divLoggedIn.style.display = 'block';
divSettings.style.display = 'none';
divChange.style.display = 'none';
user3.focus();
user3.select();
});
calpine.addEventListener('click', function() {
chrome.tabs.create({ url: 'http://www.calpinemate.com/' });
});
});
I have made some changed as i was asked to do so.I have added a new div named divchange.
here is my updated userinfo.html
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript" src="popbak.js"></script>
</head>
<body>
<div id="loadingContainer"></div>
<div id="settingsContainer">
<b>Please Enter your Email ID/Employee Code</b>
<br />
<br />
<form id="userinfo">
<table>
<tr><td> <label for="user">Email/Employee Code:</label></td>
<td> <input type="text" id="user1" required /></td></tr>
<tr><td> <input type="submit" id="login" value="Log In" /></td></tr>
</table>
</form>
</div>
<div id="settingsChange">
<b>Please Enter your Email ID/Employee Code</b>
<br />
<br />
<table>
<tr><td><label for="user">Email/Employee Code:</label></td>
<td><input type="text" id="user3" required /></td></tr>
<tr><td><input type="button" id="emailchange" value="Change" /></td>
<td><input type="button" id="emailcancel" value="Cancel" /></td> </tr>
</table>
</div>
<div id="loggedInContainer">
<table>
<tr><td> <label for="user">Email/Employee Code:</label></td>
<!-- <input type="text" id="user2" readonly /> -->
<td><span id="user2"></span></td> </tr>
<br />
<tr><td><input type="button" id="calpine" value="Go to Calpinemate"/></td>
<td><input type="button" id="change" value="Change Settings"/></td></tr>
</table>
</div>
</body>
</html>
here is my bgpage.login()
function login(useremail){
if(!useremail)
{
alert('Please enter your Email/Employee code'); //this is not working
return;
}
var urlPrefix = 'http://www.calpinemate.com/employees/attendanceStatus/';
var urlSuffix = '/3';
var req1 = new XMLHttpRequest();
req1.addEventListener("readystatechange", function() {
if (req1.readyState == 4) {
if (req1.status == 200) {
var item=req1.responseText;
if(item==1){
localStorage.username=useremail;
updateIcon();
}
else
{
alert('Please enter a valid Email/employee code');
updateIcon();
}
}
else {
alert("ERROR: status code " + req1.status);
}
}
});
var url = urlPrefix + encodeURIComponent(useremail) + urlSuffix;
req1.open("GET", url);
req1.send(null);
}
Here is my background.js
var myNotificationID = null;
var oldChromeVersion = !chrome.runtime;
setInterval(function() {
updateIcon();
}, 1000);
function getGmailUrl() {
return "http://calpinemate.com/";
}
function isGmailUrl(url) {
return url.indexOf(getGmailUrl()) == 0;
}
function onInit() {
updateIcon();
if (!oldChromeVersion) {
chrome.alarms.create('watchdog',{periodInMinutes:5,delayInMinutes: 0});
}
}
function onAlarm(alarm) {
if (alarm && alarm.name == 'watchdog') {
onWatchdog();
}
else {
updateIcon();
}
function onWatchdog() {
chrome.alarms.get('refresh', function(alarm) {
if (alarm) {
console.log('Refresh alarm exists. Yay.');
}
else {
updateIcon();
}
});
}
if (oldChromeVersion) {
updateIcon();
onInit();
}
else {
chrome.runtime.onInstalled.addListener(onInit);
chrome.alarms.onAlarm.addListener(onAlarm);
}
function updateIcon(){
if(localStorage.username){
var urlPrefix = 'http://www.calpinemate.com/employees/attendanceStatus/';
var urlSuffix = '/2';
var req = new XMLHttpRequest();
req.addEventListener("readystatechange", function() {
if (req.readyState == 4) {
if (req.status == 200) {
var item=req.responseText;
if(item==1){
chrome.browserAction.setIcon({path:"calpine_logged_in.png"});
chrome.browserAction.setBadgeBackgroundColor({color:[190, 190, 190, 230]});
chrome.browserAction.setBadgeText({text:""});
chrome.notifications.clear('id1', function(){});
}
else{
chrome.browserAction.setIcon({path:"calpine_not_logged_in.png"});
chrome.browserAction.setBadgeBackgroundColor({color:[190, 190, 190, 230]});
chrome.browserAction.setBadgeText({text:""});
chrome.notifications.create(
'id1',{
type: 'basic',
iconUrl: '/calpine_not_logged_in.png',
title: 'Warning : Attendance',
message: 'Please mark your Attendance !',
buttons: [{ title: 'Mark',
iconUrl: '/tick.jpg'
},{ title: 'Ignore',
iconUrl: '/cross.jpg'}],
priority: 0},
function(id) { myNotificationID = id;}
);
}
}
else {
alert("ERROR: status code " + req.status);
}
}
});
var url = urlPrefix + encodeURIComponent(localStorage.username) + urlSuffix;
req.open("GET", url);
req.send(null);
}
}
onInit();
First of all, the localStorage of the background-page and that of the popup are not the same objects. Besides, each time the popup is shown, it is loaded anew, thus the localStorage is empty.
UPDATE: Thx to rsanchez's comment, I correct my mistake: the popup shares the localStorage object of the extension (which is the same as the one of the background-page).
You should use the localStorage of the background-page. (Keep in mind this works only because you have a persistent background-page !)
The simplest (and most reliable) way is to have a single popup with two different divs (one for entering credentials and one for logging in) and display only one at a time.
E.g.:
1) Remove any chrome.browserAction.onClicked... listener from the background-page (it won't hurt leaving it there as it will never be triggered, but it will confuse you in the future).
2) Declare a popup in your manifest (if you don't have already done do):
<pre>
...
"browser_action": {
...
"default_popup": "popup.html"
},
...
</pre>
3). Create a file named popup.html with the following code:
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript" src="popup.js"></script>
</head>
<body>
<div id="loadingContainer"><h3>Loading...</h3></div>
<div id="settingsContainer" style="display:none;">
<b>Enter your Email ID/Employee Code</b>
<br />
<br />
<form id="userinfo">
<label for="user">Email/Employee Code:</label>
<input type="text" id="user1" required />
<input type="submit" id="login" value="Log In" />
</form>
</div>
<div id="loggedInContainer" style="display:none;">
<label for="user">Email/Employee Code:</label>
<!--<input type="text" id="user2" readonly />-->
<span id="user2"></span>
<br />
<input type="button" id="calpine" value="Go to Calpinemate"/>
<input type="button" id="change" value="Change Settings"/>
</div>
</body>
</html>
</pre>
4) Create a file named popup.js with the following code:
window.addEventListener('DOMContentLoaded', function() {
/* Container divs */
var divLoading = document.querySelector('div#loadingContainer');
var divSettings = document.querySelector('div#settingsContainer');
var divLoggedIn = document.querySelector('div#loggedInContainer');
/* Settings-container fields */
var user1 = divSettings.querySelector('input#user1');
var form = divSettings.querySelector('form#userinfo');
/* LoggedIn-container fields */
//var user2 = divLoggedIn.querySelector('input#user2');
var user2 = divLoggedIn.querySelector('span#user2');
var change = divLoggedIn.querySelector('input#change');
var calpine = divLoggedIn.querySelector('input#calpine');
/* Query the extension's localStorage
* in order to decide which DIV to show */
var user = localStorage.username;
if (user) {
/* 'Username' is set: Show the LoggedIn-container
* (after updating the value of the (readonly) '#user' field) */
//user1.value = user2.value = user;
user1.value = user2.textContent = user;
divLoggedIn.style.display = 'block';
} else {
/* 'Username' is not set: Show the Settings-container */
divSettings.style.display = 'block';
user1.focus();
user1.select();
}
divLoading.style.display = 'none';
/* Listener for '#userinfo' form */
form.addEventListener('submit', function(evt) {
evt.preventDefault();
var userStr = user1.value;
chrome.runtime.getBackgroundPage(function(bgPage) {
bgPage.login(userStr);
});
window.close();
});
/* Listener for '#change' button */
change.addEventListener('click', function(evt) {
divLoggedIn.style.display = 'none';
divSettings.style.display = 'block';
user1.focus();
user1.select();
});
/* Listener for '#calpine' button */
calpine.addEventListener('click', function() {
chrome.tabs.create({ url: 'https://your.domain.goes/here' });
});
});