is it possible to get more information about the trackpad? I want to make an app that rotates the loaded model depending on where the user clicks on the trackpad, therefore I need the position. Could not find anything in the docs.
Is this possible or will it be possible?
Thank you
You can get the axis at el.components['tracked-controls'].axis or listen to axismove event el.addEventListener('axismove', evt => { console.log(evt); });
https://aframe.io/docs/0.7.0/components/tracked-controls.html#events_axismove
Related
Question
I'm working with Adobe Scene7 BasicZoomViewer and I'm looking for a way to tell the ZoomViewer to reset the zoom so that the user is no longer zoomed in on an image but instead will show the default "zoom" level.
What I've found
The closest thing I found to what I need is this reset property ZoomView.reset which "Resets the viewport when the frame (image) changes. If set to 0 it preserves the current viewport with the best possible fit while preserving the aspect ratio of the newly set image".
This looks close to something I need but it states that it will reset or preserve the aspect ratio when a new image has been inserted but I am not inserting new images.
Demo from Adobe
There is a button on the image that the API inserts into the page that resets the zoom level. Adobe provides a demo page that shows what I'm working with. If you look at the bottom left, the right-most button is the reset button. When clicked, it has to make some kind of API call and I need to figure out which one it is.
Edit
I've been able to find a minified version of the BasicZoomViewer and I am currently attempting to make sense of the code.
There is an event listener placed on the "Zoom Reset Button" that just simply calls a reset() method on line 274 in the uglified version of the file. Currently, I am trying to make sense of the file and figure out how to access this method.
c.zoomResetButton.addEventListener("click", function () {
c.zoomView.zoomReset()
});
I will be answering my own question. If someone finds a better way please feel free to answer as well.
tldr;
Create a variable to hold the instance of your s7viewers.BasicZoomViewer() and inside of that you can access the event handlers and much more.
Example of calling the reset zoom handler
// instantiate the s7viewers class and save it in a variable
var s7BasicZoomViewer = new s7viewers.BasicZoomViewer({
containerId: 's7viewer',
params: {
asset: assetUrl,
serverurl: serverUrl
})
// example of how to call the "zoomReset()" method
s7BasicZoomViewer.zoomResetButton.component.events.click[0].handler()
Explanation
After digging through the minified code that was uglified I found an event listener on the s7zoomresetbutton DOM class name, or perhaps it's watching for the ID of that DOM element which is the same ID as the container div for your S7 BasicZoom Viewer plus some added text to make this ID unique. For example, if the container div is s7viewer then the reset zoom button will have an ID of s7viewer_zoomresetbutton.
Now, going through the code I found this event listener which let me know there must be some way to call the zoomReset() method.
c.zoomResetButton.addEventListener("click", function () {
c.zoomView.zoomReset()
});
In the code above, the value of c is this or in other words it's the instance of your S7 BasicViewerZoom and in my case I have multiple depending on how many images I need to zoom on.
When instantiating the s7viewers class you can then reference that instance later and access the event handlers on each button and other properties and methods.
From there it was just looking through the object returned from the instance and calling the handler for the reset button.
I am using A-frame for building a VR website. I wish to enter vr-mode without having to press the 'enter-vr' glasses on the oculus go more than once. For my application most of the html (including the a-scene) get reloaded (but the header/footer remain in place). For pc browsers this code works:
HTML:
<a-scene id="eqvrscene">
</a-scene>
<button id="enterVRButton" onclick="$('#eqvrscene')[0].enterVR();"> Enter VR </button>
JS:
$("#enterVRButton")[0].click();
but this does unfortunately nothing on the oculus go. Does anyone have a suggesting how to tackle this problem?
This may or may not be related, but you have a typo in your <a-scene> tag.
It's difficult to tell from your code, but are you sure your scene is loaded when you click the button?
Try first listening for the loaded event of the scene, and then setting up a listener for the button:
// Scene entity element
var scene = document.querySelector('a-scene');
// Button element
var enterVRButton = document.querySelector('#enterVRButton');
// Check if scene has loaded, otherwise set up listener for when it does.
if (scene.hasLoaded) {
addButtonListener();
} else {
scene.addEventListener('loaded', addButtonListener);
}
// Add our button click listener.
function addButtonListener() {
enterVRButton.addEventListener('click', function() {
scene.enterVR();
});
}
In A-Frame master branch, there is an API in place for adding a custom button for entering VR, so it may be released in 0.9.0. See the master docs: https://aframe.io/docs/master/components/vr-mode-ui.html#specifying-a-custom-enter-vr-button
If you're trying to automate the click event, I don't believe this will work in many browsers, as a user interaction is required for enterVR().
It’s not posible. The WebVR API does not allow to enter VR mode automatically. It requires a user gesture like a click that cannot be synthetized like your example does. The only exception is when a page enters VR mode after user gesture, new pages are granted permission to enter VR automatically after navigation. A-Frame already accounts for the scenario and no extra application code is necessary.
Firefox also grants permision to enter VR automatically on page reload. That’s why you might be seeing a different behavior on desktop. Your code is not necessary, A-Frame auto enters VR automatically already. This case is not covered in the Oculus Browser
I'm trying to use the daydream trackpad in aframe. In particular I need events that let me see it as a touchpad. In other words I need touchstart, touchmove, and touchend events or equivalent.
The docs only list these events
trackpadchanged Trackpad changed.
trackpaddown Trackpad pressed.
trackpadup Trackpad released.
trackpadtouchstart Trackpad touched.
trackpadtouchend Trackpad not touched.
Notice there is no trackpadmove or trackpadtouchmove. I tried adding an event to trackpadchanged but it's not a touchmove like event.
If I want to say "scroll through something" I need values as the user moves their finger across the pad.
I tried printing out all of those events
const dd = this.el.querySelector('#daydream-controls');
[
'trackpadchanged',
'trackpaddown',
'trackpadup',
'trackpadtouchstart',
'trackpadtouchend',
].forEach((event) => {
dd.addEventListener(event, (e) => {
console.log(event, e);
});
});
But I don't see any events as I drag my finger on the pad. I only see trackpadtouchstart followed by trackpadchanged when I touch the pad and then I see trackpadtouchend followed by trakpadchanged when I release.
Is there some other event I should be looking for or some other way to read when the user moves their finger across the pad?
Use the axismove event provided by underlying tracked-controls.
See also: https://www.npmjs.com/package/aframe-thumb-controls-component
Following Google's documentation:
https://developers.google.com/maps/documentation/javascript/reference#FusionTablesLayer
https://developers.google.com/maps/documentation/javascript/reference#FusionTablesMouseEvent
There doesn't seem to be any documented way of capturing a rightclick event on a FutionTablesLayer like there is on the Map object. Has anyone figured out how to capture a rightclick (or contextmenu) event?
Even getting the x/y coordinates in pixels would be helpful since I could use those to find the latlng and query the FusionTable myself somehow... but it looks like the rightclick event on the Map is canceled or prevented from firing.
I'm afraid this is not possible.
The map would respond to the rightclick when you set the clickable-option of the layer to false, but this wouldn't help you much, because the latLng-property would contain the click-coordinates on the map and not the position of the marker.
Can I listen to Alert button click between components using AsyncToken?
Basically, I want to have a method that opens an Alert with buttons and have it return an AsyncToken so that other components calling that method can listen for button click.
Example:
var token:AsyncToken=methodThatOpensAlert();
token.addResponder(new mx.rpc.Responder(buttonClick));
What's the way to do that?
Thank you.
You might be able to use an AsyncToken to achieve this but you could also just register for custom events that you dispatch from the pop up, this is a much cleaner method IMO. Really you've got two relatively clean options I can think of. 1 you make your pop-up dispatch events like "okClicked" "cancelClicked" for different button clicks within the pop-up, you create an instance of the pop up and add listeners then call PopUpManager.addPopUp, or else you do PopUpManager.createPopUp and keep a reference to the returned display object (the instance of the pop-up it created) and add your listeners then. 2 you make two properties in the pop up typed as function, you use them as call backs, so when you create the pop-up you set the okClickedFunction and cancelClickedFunction (or whatever your buttons may be) then in the pop-up you put cilck handlers on the buttons, check to see if the appropriate call-back function is set and call it if so, like
if(okClickedFunction)
okClickedFunction();
Let me know if you have a specific need that makes you think you must use the AsyncToken, but from checking out the docs it looks as though it's strictly meant to work with the other RPC methods and lots of properties are read-only.
EDIT:
[SomeUtilClass.as]
private static function methodThatOpensAlert():CustomAlert
{
return PopUpManager.createPopUp(Application.application, CustomAlert) as CustomAlert;
}
[CustomAlert.as]
[Event(type="flash.events.Event", name="button1Clicked")]
[Event(type="flash.events.Event", name="button2Clicked")]
private function button1Clicked_handler(event:MouseEvent):void
{
dispatchEvent(new Event("button1Clicked", true));
}
private function button2Clicked_handler(event:MouseEvent):void
{
dispatchEvent(new Event("button2Clicked", true));
}
[ThingThatUsesAlert]
var ca:CustomAlert = SomeUtilClass.methodThatOpensAlert();
ca.addEventListener("button1Clicked", button1ClickHandler);
ca.addEventListener("button2Clicked", button2ClickHandler);
And I believe mouse events bubble by default anyhow still so you could really just listen for a click event on the pop up then use the event.target to determine if it was one of the buttons your interested in.
Let me know if you can make sense of this or need more info.