Hi there i have this code snippet I need to get working with MooTools 1.3 :
this.fn = function (e, cal) {
var e = new Event(e);
var el = e.target;
var stop = false;
while (el != document.body && el.nodeType == 1) {
if (el == this.calendar) { stop = true; }
this.calendars.each(function (kal) {
if (kal.button == el || kal.els.contains(el)) { stop = true; }
});
if (stop) {
e.stop();
return false;
}
else { el = el.parentNode; }
}
this.toggle(cal);
}.create({
'arguments': cal,
'bind': this,
'event': true
}); <-- THIS CREATE METHOD DOES NOT WORK
Can someone help me whit this ?
After create function was deprecated, you need to "manually" recreate the usage.
In this case, you are creating a function that will be an event listener and binding it later in the code (this is Aeron Glemann's calendar).
So what you need to do, is put this function in addEvent you find directly below it, like this.
document.addEvent('mousedown', function(e, cal) {
[...]
}.bind(this));
Also, there's a removeEvent call at the begining of the function you're currently editing (the toggle function) that will no longer work since this function no longer has a name, replace it with removing all events on mousedown, worked for me.
document.removeEvents('mousedown');
as i said on the mootools user mailing list, i don't know about the "perfect" way, but in the meantime you can always (if you don't want to use the 1.2 compat version)
inspire yourself from the implementation of the function for 1.2 compat :
https://github.com/mootools/mootools-core/blob/025adc07dc7e9851f30b3911961d43d525d83847/Source/Types/Function.js#L74
I have to admit the doc for 1.3 only mention that this method is deprecated.
Related
I'm using the 'Compilation.xml' template from the TVMLCatalog
I'd like to add a button click event to a 'listItemLockup'
<listItemLockup>
<ordinal minLength="2" class="ordinalLayout">0</ordinal>
<title>Intro</title>
<subtitle>00</subtitle>
<decorationLabel>(3:42)</decorationLabel>
</listItemLockup>
I've tried adding:
App.onLaunch = function(options) {
var templateURL = 'http://localhost:8000/hello.tvml';
var doc = getDocument(templateURL);
//doc.addEventListener("select", function() { alert("CLICK!") }, false);
var listItemLockupElement = doc.getElementsByTagName("listItemLockup");
listItemLockupElement.addEventListener("select", function() { alert("CLICK!") }, false);
}
addEventListener
void addEventListener (in String type, in Object listener, in optional Object extraInfo)
Is "select" the correct type?
I've been using the following tutorials
http://jamesonquave.com/blog/developing-tvos-apps-for-apple-tv-with-swift/
http://jamesonquave.com/blog/developing-tvos-apps-for-apple-tv-part-2/
Update
I'm getting an error
ITML <Error>: doc.getElementsByTagName is not a function. (In 'doc.getElementsByTagName("listItemLockup")', 'doc.getElementsByTagName' is undefined) - http://localhost:8000/main.js - line:27:58
I tried adding this to the 'onLaunch'
var listItemLockupElements = doc.getElementsByTagName("listItemLockup");
for (var i = 0; i < listItemLockupElements.length; i++) {
//var ele = listItemLockupElements[i].firstChild.nodeValue;
listItemLockupElements[i].addEventListener("select", function() { alert("CLICK!") }, false);
}
I'll see about the error first
Cross Post: https://forums.developer.apple.com/thread/17859
More common example I have seen by Apple is to define a single overall listener like:
doc.addEventListener("select", Presenter.load.bind(Presenter));
In your xml, assign unique ids to elements, or give them ways to identify them.
For example, the beginning would be something like:
load: function(event) {
var self = this,
ele = event.target,
attr_id = ele.getAttribute("id"),
audioURL = ele.getAttribute("audioURL"),
videoURL = ele.getAttribute("videoURL")
And then you can do whatever you want with your item.
if(audioURL && (event.type === "select" || event.type === "play")) {
//
}
My advice would be to study the Presenter.js file more carefully for this pattern.
Edit:
Answering your "Update" related to doc.getElementsByTagName is not a function. "doc" does not actually exist, but the general pattern is to get it with
var doc = getActiveDocument();
I assumed you would know the above.
Does that fix it?
var listItemLockupElement = doc.getElementsByTagName("listItemLockup”);
In this case, the listItemLockupElement is a NodeList, not an element. You can either iterate through the list and add an event listener to each listItemLockup, or you could add the event listener to the containing element.
When addressing items in a NodeList, you use the item(i) method rather than the standard array access notation:
listItemLockupElements.item(i).addEventListener("select", function() { })
See: https://developer.mozilla.org/en-US/docs/Web/API/NodeList/item
Adding event listeners is straightforward if you're using atvjs framework.
ATV.Page.create({
name: 'mypage',
template: your_template_function,
data: your_data,
events: {
select: 'onSelect',
},
// method invoked in the scope of the current object and
// 'this' will be bound to the object at runtime
// so you can easily access methods and properties and even modify them at runtime
onSelect: function(e) {
let element = e.target;
let elementType = element.nodeName.toLowerCase();
if (elementType === 'listitemlockup') {
this.doSomething();
}
},
doSomething: function() {
// some awesome action
}
});
ATV.Navigation.navigate('mypage');
Disclaimer: I am the creator and maintainer of atvjs and as of writing this answer, it is the only JavaScript framework available for Apple TV development using TVML and TVJS. Hence I could provide references only from this framework. The answer should not be mistaken as a biased opinion.
Hy everybody,
I'm working with dc.js and I think it's a genious tool ! However I have a issue I can't solve.
I'm using a dc.barchart and I want to launch a function of mine after a click on one bar, but I need to wait the end of the redraw of the barchart.
Order :
- my barchart is displayed
- I click on one bar
-> the barchart is redraw
-> only after the complete redraw, my function is launched
Where can I put my callback ? I can't find the corresponding code.
_chart.onClick = function (d) {
var filter = _chart.keyAccessor()(d);
dc.events.trigger(function () {
_chart.filter(filter);
_chart.redrawGroup();
alert("here is not working");
});
};
(...)
dc.redrawAll = function(group) {
var charts = dc.chartRegistry.list(group);
for (var i = 0; i < charts.length; ++i) {
charts[i].redraw();
}
alert("neither here");
if(dc._renderlet !== null)
dc._renderlet(group);
};
dc.events.trigger = function(closure, delay) {
if (!delay){
closure();
alert("neither neither here");
return;
}
dc.events.current = closure;
setTimeout(function() {
if (closure == dc.events.current)
closure();
}, delay);
};
Any idea ? I'm completely blocked right now :(
Thanks a lot for your help,
vanessa
If _chart is the name of your chart and you want to execute some function named my_function after finishing drawing, use the following piece of code after the declaration of the chart itself:
_chart.on("postRedraw", my_function);
Hope this is what you were looking for.
Following HTML shows empty array in console on first click:
<!DOCTYPE html>
<html>
<head>
<script>
function test(){
console.log(window.speechSynthesis.getVoices())
}
</script>
</head>
<body>
Test
</body>
</html>
In second click you will get the expected list.
If you add onload event to call this function (<body onload="test()">), then you can get correct result on first click. Note that the first call on onload still doesn't work properly. It returns empty on page load but works afterward.
Questions:
Since it might be a bug in beta version, I gave up on "Why" questions.
Now, the question is if you want to access window.speechSynthesis on page load:
What is the best hack for this issue?
How can you make sure it will load speechSynthesis, on page load?
Background and tests:
I was testing the new features in Web Speech API, then I got to this problem in my code:
<script type="text/javascript">
$(document).ready(function(){
// Browser support messages. (You might need Chrome 33.0 Beta)
if (!('speechSynthesis' in window)) {
alert("You don't have speechSynthesis");
}
var voices = window.speechSynthesis.getVoices();
console.log(voices) // []
$("#test").on('click', function(){
var voices = window.speechSynthesis.getVoices();
console.log(voices); // [SpeechSynthesisVoice, ...]
});
});
</script>
<a id="test" href="#">click here if 'ready()' didn't work</a>
My question was: why does window.speechSynthesis.getVoices() return empty array, after page is loaded and onready function is triggered? As you can see if you click on the link, same function returns an array of available voices of Chrome by onclick triger?
It seems Chrome loads window.speechSynthesis after the page load!
The problem is not in ready event. If I remove the line var voice=... from ready function, for first click it shows empty list in console. But the second click works fine.
It seems window.speechSynthesis needs more time to load after first call. You need to call it twice! But also, you need to wait and let it load before second call on window.speechSynthesis. For example, following code shows two empty arrays in console if you run it for first time:
// First speechSynthesis call
var voices = window.speechSynthesis.getVoices();
console.log(voices);
// Second speechSynthesis call
voices = window.speechSynthesis.getVoices();
console.log(voices);
According to Web Speech API Errata (E11 2013-10-17), the voice list is loaded async to the page. An onvoiceschanged event is fired when they are loaded.
voiceschanged: Fired when the contents of the SpeechSynthesisVoiceList, that the getVoices method will return, have changed. Examples include: server-side synthesis where the list is determined asynchronously, or when client-side voices are installed/uninstalled.
So, the trick is to set your voice from the callback for that event listener:
// wait on voices to be loaded before fetching list
window.speechSynthesis.onvoiceschanged = function() {
window.speechSynthesis.getVoices();
...
};
You can use a setInterval to wait until the voices are loaded before using them however you need and then clearing the setInterval:
var timer = setInterval(function() {
var voices = speechSynthesis.getVoices();
console.log(voices);
if (voices.length !== 0) {
var msg = new SpeechSynthesisUtterance(/*some string here*/);
msg.voice = voices[/*some number here to choose from array*/];
speechSynthesis.speak(msg);
clearInterval(timer);
}
}, 200);
$("#test").on('click', timer);
After studying the behavior on Google Chrome and Firefox, this is what can get all voices:
Since it involves something asynchronous, it might be best done with a promise:
const allVoicesObtained = new Promise(function(resolve, reject) {
let voices = window.speechSynthesis.getVoices();
if (voices.length !== 0) {
resolve(voices);
} else {
window.speechSynthesis.addEventListener("voiceschanged", function() {
voices = window.speechSynthesis.getVoices();
resolve(voices);
});
}
});
allVoicesObtained.then(voices => console.log("All voices:", voices));
Note:
When the event voiceschanged fires, we need to call .getVoices() again. The original array won't be populated with content.
On Google Chrome, we don't have to call getVoices() initially. We only need to listen on the event, and it will then happen. On Firefox, listening is not enough, you have to call getVoices() and then listen on the event voiceschanged, and set the array using getVoices() once you get notified.
Using a promise makes the code more clean. Everything related to getting voices are in this promise code. If you don't use a promise but instead put this code in your speech routine, it is quite messy.
You can write a voiceObtained promise to resolve to a voice you want, and then your function to say something can just do: voiceObtained.then(voice => { }) and inside that handler, call the window.speechSynthesis.speak() to speak something. Or you can even write a promise speechReady("hello world").then(speech => { window.speechSynthesis.speak(speech) }) to say something.
heres the answer
function synthVoice(text) {
const awaitVoices = new Promise(resolve=>
window.speechSynthesis.onvoiceschanged = resolve)
.then(()=> {
const synth = window.speechSynthesis;
var voices = synth.getVoices();
console.log(voices)
const utterance = new SpeechSynthesisUtterance();
utterance.voice = voices[3];
utterance.text = text;
synth.speak(utterance);
});
}
At first i used onvoiceschanged , but it kept firing even after the voices was loaded, so my goal was to avoid onvoiceschanged at all cost.
This is what i came up with. It seems to work so far, will update if it breaks.
loadVoicesWhenAvailable();
function loadVoicesWhenAvailable() {
voices = synth.getVoices();
if (voices.length !== 0) {
console.log("start loading voices");
LoadVoices();
}
else {
setTimeout(function () { loadVoicesWhenAvailable(); }, 10)
}
}
setInterval solution by Salman Oskooi was perfect
Please see https://jsfiddle.net/exrx8e1y/
function myFunction() {
dtlarea=document.getElementById("details");
//dtlarea.style.display="none";
dtltxt="";
var mytimer = setInterval(function() {
var voices = speechSynthesis.getVoices();
//console.log(voices);
if (voices.length !== 0) {
var msg = new SpeechSynthesisUtterance();
msg.rate = document.getElementById("rate").value; // 0.1 to 10
msg.pitch = document.getElementById("pitch").value; //0 to 2
msg.volume = document.getElementById("volume").value; // 0 to 1
msg.text = document.getElementById("sampletext").value;
msg.lang = document.getElementById("lang").value; //'hi-IN';
for(var i=0;i<voices.length;i++){
dtltxt+=voices[i].lang+' '+voices[i].name+'\n';
if(voices[i].lang==msg.lang) {
msg.voice = voices[i]; // Note: some voices don't support altering params
msg.voiceURI = voices[i].voiceURI;
// break;
}
}
msg.onend = function(e) {
console.log('Finished in ' + event.elapsedTime + ' seconds.');
dtlarea.value=dtltxt;
};
speechSynthesis.speak(msg);
clearInterval(mytimer);
}
}, 1000);
}
This works fine on Chrome for MAC, Linux(Ubuntu), Windows and Android
Android has non-standard en_GB wile others have en-GB as language code
Also you will see that same language(lang) has multiple names
On Mac Chrome you get en-GB Daniel besides en-GB Google UK English Female and n-GB Google UK English Male
en-GB Daniel (Mac and iOS)
en-GB Google UK English Female
en-GB Google UK English Male
en_GB English United Kingdom
hi-IN Google हिन्दी
hi-IN Lekha (Mac and iOS)
hi_IN Hindi India
Another way to ensure voices are loaded before you need them is to bind their loading state to a promise, and then dispatch your speech commands from a then:
const awaitVoices = new Promise(done => speechSynthesis.onvoiceschanged = done);
function listVoices() {
awaitVoices.then(()=> {
let voices = speechSynthesis.getVoices();
console.log(voices);
});
}
When you call listVoices, it will either wait for the voices to load first, or dispatch your operation on the next tick.
I used this code to load voices successfully:
<select id="voices"></select>
...
function loadVoices() {
populateVoiceList();
if (speechSynthesis.onvoiceschanged !== undefined) {
speechSynthesis.onvoiceschanged = populateVoiceList;
}
}
function populateVoiceList() {
var allVoices = speechSynthesis.getVoices();
allVoices.forEach(function(voice, index) {
var option = $('<option>').val(index).html(voice.name).prop("selected", voice.default);
$('#voices').append(option);
});
if (allVoices.length > 0 && speechSynthesis.onvoiceschanged !== undefined) {
// unregister event listener (it is fired multiple times)
speechSynthesis.onvoiceschanged = null;
}
}
I found the 'onvoiceschanged' code from this article: https://hacks.mozilla.org/2016/01/firefox-and-the-web-speech-api/
Note: requires JQuery.
Works in Firefox/Safari and Chrome (and in Google Apps Script too - but only in the HTML).
async function speak(txt) {
await initVoices();
const u = new SpeechSynthesisUtterance(txt);
u.voice = speechSynthesis.getVoices()[3];
speechSynthesis.speak(u);
}
function initVoices() {
return new Promise(function (res, rej){
speechSynthesis.getVoices();
if (window.speechSynthesis.onvoiceschanged) {
res();
} else {
window.speechSynthesis.onvoiceschanged = () => res();
}
});
}
While the accepted answer works great but if you're using SPA and not loading full-page, on navigating between links, the voices will not be available.
This will run on a full-page load
window.speechSynthesis.onvoiceschanged
For SPA, it wouldn't run.
You can check if it's undefined, run it, or else, get it from the window object.
An example that works:
let voices = [];
if(window.speechSynthesis.onvoiceschanged == undefined){
window.speechSynthesis.onvoiceschanged = () => {
voices = window.speechSynthesis.getVoices();
}
}else{
voices = window.speechSynthesis.getVoices();
}
// console.log("voices", voices);
I had to do my own research for this to make sure I understood it properly, so just sharing (feel free to edit).
My goal is to:
Get a list of voices available on my device
Populate a select element with those voices (after a particular page loads)
Use easy to understand code
The basic functionality is demonstrated in MDN's official live demo of:
https://github.com/mdn/web-speech-api/tree/master/speak-easy-synthesis
but I wanted to understand it better.
To break the topic down...
SpeechSynthesis
The SpeechSynthesis interface of the Web Speech API is the controller
interface for the speech service; this can be used to retrieve
information about the synthesis voices available on the device, start
and pause speech, and other commands besides.
Source
onvoiceschanged
The onvoiceschanged property of the SpeechSynthesis interface
represents an event handler that will run when the list of
SpeechSynthesisVoice objects that would be returned by the
SpeechSynthesis.getVoices() method has changed (when the voiceschanged
event fires.)
Source
Example A
If my application merely has:
var synth = window.speechSynthesis;
console.log(synth);
console.log(synth.onvoiceschanged);
Chrome developer tools console will show:
Example B
If I change the code to:
var synth = window.speechSynthesis;
console.log("BEFORE");
console.log(synth);
console.log(synth.onvoiceschanged);
console.log("AFTER");
var voices = synth.getVoices();
console.log(voices);
console.log(synth);
console.log(synth.onvoiceschanged);
The before and after states are the same, and voices is an empty array.
Solution
Although i'm not confident implementing Promises, the following worked for me:
Defining the function
var synth = window.speechSynthesis;
// declare so that values are accessible globally
var voices = [];
function set_up_speech() {
return new Promise(function(resolve, reject) {
// get the voices
var voices = synth.getVoices();
// get reference to select element
var $select_topic_speaking_voice = $("#select_topic_speaking_voice");
// for each voice, generate select option html and append to select
for (var i = 0; i < voices.length; i++) {
var option = $("<option></option>");
var suffix = "";
// if it is the default voice, add suffix text
if (voices[i].default) {
suffix = " -- DEFAULT";
}
// create the option text
var option_text = voices[i].name + " (" + voices[i].lang + suffix + ")";
// add the option text
option.text(option_text);
// add option attributes
option.attr("data-lang", voices[i].lang);
option.attr("data-name", voices[i].name);
// append option to select element
$select_topic_speaking_voice.append(option);
}
// resolve the voices value
resolve(voices)
});
}
Calling the function
// in your handler, populate the select element
if (page_title === "something") {
set_up_speech()
}
Android Chrome - turn off data saver. It was helpfull for me.(Chrome 71.0.3578.99)
// wait until the voices load
window.speechSynthesis.onvoiceschanged = function() {
window.speechSynthesis.getVoices();
};
let voices = speechSynthesis.getVoices();
let gotVoices = false;
if (voices.length) {
resolve(voices, message);
} else {
speechSynthesis.onvoiceschanged = () => {
if (!gotVoices) {
voices = speechSynthesis.getVoices();
gotVoices = true;
if (voices.length) resolve(voices, message);
}
};
}
function resolve(voices, message) {
var synth = window.speechSynthesis;
let utter = new SpeechSynthesisUtterance();
utter.lang = 'en-US';
utter.voice = voices[65];
utter.text = message;
utter.volume = 100.0;
synth.speak(utter);
}
Works for Edge, Chrome and Safari - doesn't repeat the sentences.
I cannot believe I am still have basic programming problems... I know the basics, but still have a hard time implementing the logic I think of. Anyways
I am building this basic Chrome Extension that has one JavaScript file and it does work! The only issue is that once I click the icon it is forever on, that is until I remove it. I want to add a basic toggle functionality, but I am having difficulty getting a working prototype. Here is a couple of my ideas:
var toggle == 1; // or true, i.e. clicked
if (functionName() == 1) {
function functionName() {
Do whatever it is when clicked;
blah blah blah;
} else if (functionName() == 0) {
Turn off;
} else {};
}
switch(toggle)
{
case 1:
Do whatever it is when clicked;
blah blah blah;
break;
case 2:
Turn off;
break;
default:
error;
break;
}
If both if statement and switch statement had a different order, say case 1 and 2 were swapped, I do not think it would be a difference. I do not think a switch statement would be the best way because there is no more than two options, on or off.
What about a while loop to change the conditions of the extension? I do know the modulo operator, and code could be written like:
1 % 2 = False,
2 % 2 = True,
3 % 2 = False, etc
Then a basic if-statement could work....
something like:
var i = 1;
while (i % 2 == 1) {
Do whatever it is when clicked;
blah blah blah;
i++;
}
Does anybody have an idea of the best way to do this? I have played with the jQuery .toggle() event, but I do not think this would make since. I have nothing in the html document and only a JavaScript file. It makes no since loading the library and then using the jQuery selector$("chrome.browserAction.onClicked.addListener(function)") when simple JavaScript can be used. Plus I do not even know if that would be the right selector...
Any help would be great, thanks in advance.
For the record I found the sample extensions useless when it comes to something that should not be complicated.
Thanks!
UPDATE code with my function in background.js:
function trigger() {
chrome.browserAction.onClicked.addListener(function(tab) {
chrome.windows.onFocusChanged.addListener(function(windowId) {
if (windowId != chrome.windows.WINDOW_ID_NONE) {
chrome.tabs.query({ active:true, windowId:windowId }, function(tabs) {
if (tabs.length == 1) {
var tab = tabs[0];
chrome.tabs.reload(tab.id);
}
});
}
});
});
}
var functionOn = false;
chrome.browserAction.onClicked.addListener(function() {
if (functionOn === false) {
document.addEventListener('DOMContentLoaded', function() {
trigger();
});
functionOn = true;
} else if (functionOn === true) {
document.addEventListener('DOMContentLoaded', function() {
//nothing...
});
functionOn = false;
}
The if statement does not work at the moment, my exstension works with this call instead of the if statement at the end:
document.addEventListener('DOMContentLoaded', function() {
trigger();
});
It's hard to give you a super detailed answer without knowing exactly what is supposed to be toggled, but in a nutshell you just need to add something like this to your background script:
var functionOn = false;
chrome.browserAction.onClicked.addListener(function() {
if (functionOn === false) {
doSomething();
functionOn = true;
} else {
functionOn = false;
// Don't do anything.
}
});
By putting the variable "functionOn" in the background page the state is persistent. You may already be aware of this, but to create a background script you simply add this to the manifest file:
"background": {
"scripts": ["background.js"]
},
It's hard to tell what you're trying to do with the toggle, but the doSomething() would basically be whatever action you're trying to perform, whether it's injecting code via a content script or showing a popup, etc.
I have been searching how to put more than one function in onchange and I found how something like this for example: onchange = "function1(); function2();".
My problem here is I have followed what does the example like, but only function1 is working, function2 is not working. If I make it otherwise to onchange = "function2(); function1();", only function2 is working, function1 is not working, the same.
Any ideas guys?
Thanks.
The functions, I used Ajax:
function1(test)
{
var kode = test.value;
if (!kode) return;
xmlhttp.open('get', '../template/get_name-opr.php?kode='+kode, true);
xmlhttp.onreadystatechange = function() {
if ((xmlhttp.readyState == 4) && (xmlhttp.status == 200))
{
//alert(kode);
document.getElementById("code").innerHTML = xmlhttp.responseText;
}
return false;
}
xmlhttp.send(null);
}
function2(test)
{
var kode = test.value;
if (!kode) return;
xmlhttp**1**.open('get', '../template/get_name2-opr.php?kode='+kode, true);
xmlhttp**1**.onreadystatechange = function() {
if ((xmlhttp**1**.readyState == 4) && (xmlhttp**1**.status == 200))
{
//alert(kode);
document.getElementById("code2").innerHTML = xmlhttp**1**.responseText;
}
return false;
}
xmlhttp**1**.send(null);
}
To solve my problem, I created two xmlhttp different. (xmlhttp and xmlhttp1).
Go through the link I gave, it seems to be problem with the way you are managing the xmlhttprequest objects, manage their instances properly, in your case because you are using the same xmlhttprequest for two simultaneous AJAX requests, only one of them is getting served. Either wait for one of them to get served or create two instances of the xmlhttprequest.
The statement xmlhttp.readystate = function() {...} obviously replaces the readystate property of that xmlhttprequest object, so on your second function, that is being replaced( because you are using the xmlhttprequest for both of them ). This is why you are seeing the funny behaviour.
Call function2() at the end of function1().
onchange = "function1()"
function1(){
...
function1 body;
...
function2()
}
Wrap the two function calls in one and call that function!
function myFirstFunction() {
//body
}
function mySecondFunction() {
//body
}
//Call this guy.
function myWrappedFunction() {
myFirstFunction();
mySecondFunction();
}