I have this simple HTML
<body>
<app-root></app-root>
</body>
I would like to create a loading overlay, using Material:
https://material.angular.io/cdk/overlay/overview
Should I do something like this:
<body>
<div id="foo" class="xyz">
<app-root></app-root>
</div>
</body>
and just toggle the class on the div with id="foo"? I can't figure out how to do an overlay the Material2 way, anybody know?
This guy's post here:
https://hassantariqblog.wordpress.com/2017/03/22/angular2-using-custom-loader-spinner-as-service-in-angular-2-application/
has all the answers.
I personally have one main event bus service. So put the displayOverlay() method in their. Otherwise followed his steps exactly and it worked fine.
Basically, you do this with router-outlet:
<router-outlet>
<span *ngIf="showLoader" class="loading"></span>
</router-outlet>
then in the component which controls the above html, do this:
constructor(private mds: MainDataService, private ref: ChangeDetectorRef) {
const self = this;
let to;
this.mySub = this.mds.status.subscribe((val: boolean) => {
self.showLoader = val;
clearTimeout(to);
to = setTimeout(function () {
self.ref.detectChanges();
}, 100);
});
}
so in your main data bus service, just call:
displayOverlay(value: boolean) {
this.status.next(value);
}
Admittedly "status" is not the right property name, but I will leave it to be the same name as the examples form the article.
Related
Does lit-html have by any change something like React's ref feature?
For example in the following pseudo-code inputRef would be a callback function or an object { current: ... } where lit-html could pass/set the HTMLElement instance of the input element when the input element is created/attached.
// that #ref pseudo-attribute is fictional
html`<div><input #ref={inputRef}/></div>`
Thanks.
In lit-element you can use #query property decorator. It's just syntactic sugar around this.renderRoot.querySelector().
import { LitElement, html, query } from 'lit-element';
class MyElement extends LitElement {
#query('#first')
first;
render() {
return html`
<div id="first"></div>
<div id="second"></div>
`;
}
}
lit-html renders directly to the dom so you don't really need refs like you do in react, you can use querySelector to get a reference to the rendered input
Here's some sample code if you were only using lit-html
<html>
<head>
<title>lit-html example</title>
<script type="module">
import { render, html } from 'https://cdn.pika.dev/lit-html/^1.1.2';
const app = document.querySelector('.app');
const inputTemplate = label => {
return html `<label>${label}<input value="rendered input content"></label>`;
};
// rendering the template
render(inputTemplate('Some Label'), app);
// after the render we can access it normally
console.log(app.querySelector('input').value);
</script>
</head>
<body>
<div class="app"></div>
<label>
Other random input
<input value="this is not the value">
</label>
</body>
</html>
If you're using LitElement you could access to the inner elements using this.shadowRoot.querySelector if you're using shadow dom or this.querySelector if you aren't
As #WeiChing has mentioned somewhere above, since Lit version 2.0 you can use the newly added directive ref for that:
https://lit.dev/docs/templates/directives/#ref
-- [EDIT - 6th October 2021] ----------------------------
Since lit 2.0.0 has been released my answer below
is completely obsolete and unnecessary!
Please check https://lit.dev/docs/api/directives/#ref
for the right solution.
---------------------------------------------------------
Even if this is not exactly what I have asked for:
Depending on the concrete use case, one option to consider is the use of directives.
In my very special use-case it was for example (with a little luck and a some tricks) possible to simulate more or less that ref object behavior.
const inputRef = useElementRef() // { current: null, bind: (special-lit-html-directive) }
...
return html`<div><input ref=${inputRef.bind}/></div>`
In my use case I could do the following:
Before rendering, set elementRef.current to null
Make sure that elementRef.current cannot be read while the component is rerendered (elementRef.current is not needed while rendering and an exception will be thrown if someone tries to read it in render phase)
That elementRef.bind directive will fill elementRef.current with the actual DOM element if available.
After that, elementRef.current can be read again.
For lit-html v1, you can define your own custom Derivative:
import { html, render, directive } from "lit-html";
function createRef(){ return {value: null}; }
const ref = directive((refObj) => (attributePart) => {
refObj.value = attributePart.committer.element;
});
const inputRef = createRef();
render(html`<input ref=${ref(inputRef)} />`;
// inputRef.value is a reference to rendered HTMLInputElement
I am creating an add-on which would ask the user to select music from a list and it would play it as background music. But previous posts show a sidebar with the user manually pressing the play button. I am wondering if there is a way to play it with Google Apps Script only. Also what would be helpful is if there was a volume property to set the volume?
My Code:
function onOpen(){
DocumentApp.getUi()
.createMenu("Background Music Add-On")
.addItem("Select Music","music")
.addItem("Set Volume","musicVol")
.addToUi();
}
//music selection
function music(){
var musicName = DocumentApp.getUi()
.prompt("Please select one of the music names:\n\nElevator Music,\nLeaf Rag.\nso on...")
switch(musicName){
case "Elevator":
//code to play music Elevator
break;
//So On
}
}
Playing music from a Playlist stored on your Google Drive
This script allows you to store mp3's on your Google Drive. It allows you to select which files you wish to listen too via a playlist. You must start the playlist the first time manually but then the rest of the selections play automatically. The script converts the mp3 files into dataURI's and loads them into the audio element. You can skip over the current selection and you can restart the playlist when it completes.
Code.gs
function onOpen() {
SpreadsheetApp.getUi().createMenu('My Music')
.addItem('Launch Music', 'launchMusicDialog')
.addItem('Create New Music List', 'createMusicList')
.addToUi();
}
function convMediaToDataUri(filename){
var filename=filename || "default.mp3";
var folder=DriveApp.getFolderById("Music Folder Id");
var files=folder.getFilesByName(filename);
var n=0;
while(files.hasNext()) {
var file=files.next();
n++;
}
if(n==1) {
var blob=file.getBlob();
var b64DataUri='data:' + blob.getContentType() + ';base64,' + Utilities.base64Encode(blob.getBytes());
Logger.log(b64DataUri)
var fObj={filename:file.getName(),uri:b64DataUri}
return fObj;
}
throw("Multiple Files with same name.");
return null;
}
function launchMusicDialog() {
var userInterface=HtmlService.createHtmlOutputFromFile('music1');
SpreadsheetApp.getUi().showModelessDialog(userInterface, 'Music');
}
function createMusicList() {
var ss=SpreadsheetApp.getActive();
var sh=ss.getSheetByName("MusicList");
var folder=DriveApp.getFolderById("Music Folder Id");
var files=folder.getFiles();
var mA=[['Item','File Name','File Type','File Id','Play List']];
sh.clearContents()
var n=1;
while(files.hasNext()) {
var file=files.next();
mA.push([n++,file.getName(),file.getMimeType(),file.getId(),'']);
}
sh.getRange(1,1,mA.length,mA[0].length).setValues(mA);
sh.getRange(2,2,sh.getLastRow()-1,sh.getLastColumn()-1).sort({column:2,ascending:true});
sh.getRange(2,5,sh.getLastRow()-1,1).insertCheckboxes();
}
function getPlaylist() {
var ss=SpreadsheetApp.getActive();
var sh=ss.getSheetByName('MusicList');
var rg=sh.getRange(2,1,sh.getLastRow()-1,sh.getLastColumn());
var vA=rg.getValues();
var pl=[];
for(var i=0;i<vA.length;i++) {
if(vA[i][4]) {
pl.push(vA[i][1]);
}
}
return pl;
}
music1.html
<!DOCTYPE html>
<html>
<head>
<base target="_top">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<style>
label{margin:2px 10px;}
</style>
</head>
<script>
var selectionList=[];
var gVolume=0.2;
var index=0;
$(function(){
document.getElementById('msg').innerHTML="Loading Playlist";
google.script.run
.withSuccessHandler(function(pl){
selectionList=pl;
console.log(pl);
google.script.run
.withSuccessHandler(function(fObj){
$('#audio1').attr('src',fObj.uri);
var audio=document.getElementById("audio1");
audio.volume=gVolume;
audio.onended=function() {
document.getElementById('status').innerHTML='Ended...';
playnext();
}
var msg=document.getElementById('msg');
msg.innerHTML="Click play to begin playlist. Additional selections will begin automatically";
audio.onplay=function() {
document.getElementById('msg').innerHTML='Playing: ' + selectionList[index-1];
document.getElementById('status').innerHTML='Playing...';
document.getElementById('skipbtn').disabled=false;
}
audio.onvolumechange=function(){
gVolume=audio.volume;
}
})
.convMediaToDataUri(selectionList[index++]);
})
.getPlaylist();
});
function playnext() {
if(index<selectionList.length) {
document.getElementById('status').innerHTML='Loading...';
document.getElementById('msg').innerHTML='Next Selection: ' + selectionList[index];
google.script.run
.withSuccessHandler(function(fObj){
$('#audio1').attr('src',fObj.uri);
var audio=document.getElementById('audio1');
audio.volume=gVolume;
audio.play();
})
.convMediaToDataUri(selectionList[index++]);
}else{
document.getElementById('status').innerHTML='Playlist Complete';
document.getElementById('msg').innerHTML='';
document.getElementById('cntrls').innerHTML='<input type="button" value="Replay Playlist" onClick="replayPlaylist()" />';
}
}
function replayPlaylist() {
index=0;
document.getElementById('cntrls').innerHTML='';
playnext();
}
function skip() {
var audio=document.getElementById('audio1');
document.getElementById('skipbtn').disabled=true;
audio.pause();
index++;
playnext();
}
</script>
<body>
<div id="msg"></div>
<audio controls id="audio1" src=""></audio><br />
<div id="status"></div>
<div><input type="button" id="skipbtn" value="Skip" onClick="skip()" disabled /></div>
<div id="cntrls"></div>
</body>
</html>
Please read through the code. You need to add a music folder id and a couple of default.mp3's. The createMusicList() function reads your Music Folder and Loads them into a sheet named 'MusicList' with columns of "Item", "File Name", "File Type" ,"File Id", and PlayList. The last column is just a column of unchecked checkboxes for you to make your current playlist selection. Only one playlist for now, so you can enjoy building your own.
Here's what the dialog looks like:
And here's an image of my MusicList Sheet:
This is where you make your playlist selections.
Audio Properties and Methods
Apps Script Documentation
Latest Script Code
I used the answer to this question as a starting point: playing sound with google script
You would need to open a html sidebar and use an audio tag, to do this you can use the HtmlService class [1].
As a total background you can't, the sidebar must be always open to play the music. But you could still play the audio while editing the document.
To add the audio setting you can add the controls attribute to the audio tag [2]. For playing the audio automatically you can add the autoplay attibute [3].
Here is the code I implemented to achieve your goal. The code gets the selected value and uses it to change the autoplay value to true and to display the audio as well. Also, when the select element is on focus, it gets the previous selected value so later (when a new value is selected) it can be used to stop the previous audio selection and not display it anymore. For these purposes I used the onchange [4] and the onfocus [5] events.
Code.gs
var SIDEBAR_TITLE = 'Sidebar Musicbox';
function onOpen(e) {
DocumentApp.getUi()
.createMenu('Custom Menu')
.addItem('Show sidebar', 'showSidebar')
.addToUi();
}
function showSidebar() {
var ui = HtmlService.createHtmlOutputFromFile('Sidebar')
.setSandboxMode(HtmlService.SandboxMode.IFRAME)
.setTitle(SIDEBAR_TITLE);
DocumentApp.getUi().showSidebar(ui);
}
Sidebar.html
<!DOCTYPE html>
<html>
<head>
<base target="_top">
</head>
<body>
<div class="sidebar branding-below">
<p>
A little music for your enjoyment!
</p>
<form>
<select id="music" onchange="playSelection();" onfocus="setOldValue(this.value);">
<option value="0">0</option>
<option value="1">1</option>
<option value="2">2</option>
</select>
</form>
<br>
<audio id="player0" controls style="display:none">
<source src="[WEB-URL-FOR-MP3-FILE]" type="audio/mpeg">
Your browser does not support the audio element.
</audio>
<audio id="player1" controls style="display:none">
<source src="[WEB-URL-FOR-MP3-FILE]" type="audio/mpeg">
Your browser does not support the audio element.
</audio>
<audio id="player2" controls style="display:none">
<source src="[WEB-URL-FOR-MP3-FILE]" type="audio/mpeg">
Your browser does not support the audio element.
</audio>
<br>
<div id="sidebar-status"></div>
</div>
<div class="sidebar bottom">
<span class="gray branding-text">Docs Add-on Sound Demo</span>
</div>
</body>
<script>
var previousValue;
//Function called when select onFocus
function setOldValue(e) {
previousValue = e;
}
//Function called when selected value change
function playSelection() {
//Get the value for the selected option
var selectedValue = document.getElementById("music").value;
//Latest and previous selection IDs
var player = "player" + selectedValue;
var previousPlayer = "player" + previousValue;
//Stop and don't display the previous selection of audio
document.getElementById(previousPlayer).style.display = "none";
document.getElementById(previousPlayer).autoplay = false;
document.getElementById(previousPlayer).load();
//Play and display the new selection and put the focus on it
document.getElementById(player).style.display = "block";
document.getElementById(player).autoplay = true;
document.getElementById(player).load();
document.getElementById(player).focus();
}
</script>
</html>
[1] https://developers.google.com/apps-script/guides/html/
[2] https://www.w3schools.com/tags/att_audio_controls.asp
[3] https://www.w3schools.com/tags/att_audio_autoplay.asp
[4] https://www.w3schools.com/jsref/event_onchange.asp
[5] https://www.w3schools.com/jsref/event_onfocus.asp
I'm just started to develeop a web app with Durandal. I don't understand how call a function from a viewmodel and why if I find an element of my document it seems is not attached yet.
Example: viewmodel.js
define( ['libone', 'libtwo'], function () {
$('.carousel').libone({
expandbuttons: true,
keyboard: true,
mouse: true
});
});
It doesn't find the ID call carousel is why there's no view.hmtl content but index.html content.
Any ideas?
Thanks in advance
UPDATE
No errors but the view content is not returned.
view.html
<section>
<h2 data-bind="html:name"></h2>
<blockquote data-bind="html:descr"></blockquote>
<div class="carousel">
<div class="carousel-sections">
<div class="carousel-section"> ... some content ... </div>
</div>
</div>
<a id="carousel-scroll-prev" href="#"></a>
<a id="carousel-scroll-next" href="#"></a>
<section>
modelview.js
define( ['libone', 'libtwo'], function (libone, libtwo) {
var viewattached = function(view){
var view = $(view);
view.find('.carousel').libone({
expandbuttons: true,
keyboard: true,
mouse: true
});
};
var vm = {
attached: viewattached,
name: 'How about we start?',
descr: 'You have many choices to make and many roads to cross...'
};
return vm;
});
Only name, descr and scroll are shown but not carousel-section.
The rendering problem has been resolved using compositionComplete instead attached.
to gain access to the controls using jquery like you are requesting, you should use the views attached event
e.g.
define( ['libone', 'libtwo'], function (libone, libtwo) {
var viewattached = function(view){
var view = $(view);
view.find('.carousel').libone({
expandbuttons: true,
keyboard: true,
mouse: true
});
};
var vm = {
attached: viewattached
};
return vm;
});
The other one that may work will be the compsitionComplete..
compositionComplete works fine.But if you refresh the page ,composition complete skips the binding of element with the carousel and teh carousel doesnt work.
Any
I am trying to integrate Stripe "Pay with Card" checkout into backbone Node environment. On the server side, I am using Stripe Node code - that part works good. However, on the client side, I am unable to capture the event.
I would like to capture the submit event from the Stripe popup to call "paymentcharge" method in the view.
Here is my code:
<!-- Stripe Payments Form Template -->
<form id="stripepaymentform" class="paymentformclass">
<script
src="https://checkout.stripe.com/v2/checkout.js" class="stripe-button"
data-key="pk_test_xxxxxxxxxxxxx"
data-amount="0299"
data-name="MyDemo"
data-description="charge for something"
data-image="assets\ico\icon-72.png">
</script>
</form>
Backbone View Class
myprog.PaymentPanelView = Backbone.View.extend({
initialize: function () {
this.render();
},
render: function () {
$(this.el).html(this.template());
return this;
},
events : {
"submit" : "paymentcharge"
},
paymentcharge : function( event) {
this.model.set({stripeToken: stripeToken});
}
});
Backbone Model Class
var PaymentChargeModel = Backbone.Model.extend({
url: function(){
return '/api/paymentcharge';
},
defaults: {
}
})
Setup/Call the View from header menu event
if (!this.paymentPanelView) {
this.paymentPanelView = new PaymentPanelView({model: new PaymentChargeModel()});
}
$('#content').html(this.paymentPanelView.el);
this.paymentPanelView.delegateEvents();
this.selectMenuItem('payment-menu');
I think the problem has to do with your View's el and the event you are listening for.
You never explicitly define your View's el, which means it gets initialized to a detached <div> element. You then use your template to fill that <div> with the form element from the template. Even though your <div> is detached, you get to see the content, because you add the content of you el to #content using jquery.
I think the problem is that you are listening for a submit event on the <div> in your el, not the contained <form>. Try changing your events hash to this:
events: {
'submit form#stripepaymentform': 'paymentcharge'
}
Basically, listen for events on the contained element like in jquery's .on. You can also go right to a button click, something like this:
'click #mysubmitbutton': 'paymentcharge'
Hope this helps!
My question is similar to that one:
Dijit Menu (bar) with link
I'm using Dijit Menu as in following listing:
<div data-dojo-type="dijit/Menu">
<div id="menuItem" data-dojo-type="dijit/MenuItem">
urlLink
</div>
</div>
But link is not working as it blocked by dojo.stopEvent in _onClick().
The question is:
How to remove dojo.stopEvent and make link inside <div id="menuItem" data-dojo-type="dijit/MenuItem"> work properly?
The issue:
I need to put inside <div id=menuItem"> some code, which has to receive onClick event.
P.S. Originally this is XPages code.
Well I fell in same problem, saw this post and the related other, but wasn't satisfied with the "onclick" solution :
it didn't work (for me) with keyboard navigation
it imposes to a add script element (onclick=...) in the declarative zone which is not what I expect for unobtrusive JavaScript
Finaly I digged further in dojo and decided to directly use the href attribute of first sub-node in the handler. My script section (derived from dijit menus tutorial) is then :
<script>
require([
"dojo/dom",
"dojo/parser",
"dojo/dom-attr",
"dojo/query",
"dijit/registry",
"dijit/WidgetSet", // for registry.byClass
"dijit/Menu",
"dijit/MenuItem",
"dijit/MenuBar",
"dijit/MenuBarItem",
"dijit/PopupMenuBarItem",
"dojo/domReady!"
], function(dom, parser, domattr, query, registry){
// a menu item selection handler
var onItemSelect = function(event){
dom.byId("lastSelected").innerHTML = this.get("label");
var achild = query("a", this.domNode)[0];
if (achild != null) {
var href = domattr.get(achild, "href");
if ((href != null) && (href != '') && (href != '#')) {
window.location.href = href;
}
}
};
parser.parse();
var setClickHandler = function(item){
item.on("click", onItemSelect);
};
registry.byClass("dijit.MenuItem").forEach(setClickHandler);
registry.byClass("dijit.MenuBarItem").forEach(setClickHandler);
});
</script>
That way I don't have to change anything in a menu of type
<ul><li>...</li></ul>
that works with JavaScript disabled, and links work fine with mouse and keyboard navigation when JavaScript is enabled. Simply don't forget the "class='claro'" in body element ....
What about this:
<div data-dojo-type="dijit/Menu">
<div id="menuItem" data-dojo-type="dijit/MenuItem"
onclick="window.location('http://url.com')">
urlLink
</div>
</div>
Working jsfiddle:
http://jsfiddle.net/KuyYX/