JavaScript, Browser Object, VR with Hotspots?

JOHN PATTEN johnpatten at me.com
Fri Feb 3 14:08:47 EST 2017


Thanks Mike!

I posted this question on Pano2VR ggnome forum with a  little animation of the particular challenge. 

https://ggnome.com/forum/viewtopic.php?f=13&t=11663 <https://ggnome.com/forum/viewtopic.php?f=13&t=11663>

There may be folks interested in what Livecode could do for their workflow too :)

Cheers!


> On Feb 2, 2017, at 7:56 PM, Mike Bonner via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> Hmm. NO easy way to see the critical stuff from here but I found this post.
> 
> https://ggnome.com/forum/viewtopic.php?f=6&t=9123&p=35818&hilit=custom+function+hotspot#p35818
> 
> I think the key is to do similar to what is being done in the post.
> Basically,pass the value of me.hotspot.id to livecode as part of the
> function call, and add a switch block that gives a message based on the
> hotspot id. Very hard to actually test anything from here, but maybe there
> is something useful in the post.
> 
> On Thu, Feb 2, 2017 at 8:12 PM, JOHN PATTEN via use-livecode <
> use-livecode at lists.runrev.com> wrote:
> 
>> Hi All,
>> 
>> I managed to trial and error together a working html5 panorama using
>> Pan2VR (http://ggnome.com/pano2vr <http://ggnome.com/pano2vr>). The
>> interface of their software allows you to attach a javascript action to a
>> vr hotspot. The interface creates the following javascript for the hotspot
>> to trigger the LiveCode handler:
>> 
>> this._svg2.onclick=function (e) {
>>                                window.addEventListener('click',
>> function() {liveCode.myLiveCodeHandler2();});
>>                        }
>> 
>> (svg2 is the hotspot icon).
>> 
>> The hotspot in the vr adds some text to a field on the card when clicked,
>> waits 2 seconds, and then removes the text.
>> 
>> This javascript works only the first time, because after the hotspot is
>> clicked, the LiveCode handler is triggered any time the user clicks within
>> the vr of the browser object. (Javascript “event listener” listens for any
>> click in the browser object, after the hotspot is clicked once.)
>> 
>> The only solution I have found is to reload the html for the vr into the
>> browser object again. But that is not ideal.
>> 
>> I am aware of a the javascript command removeEventListener, and that
>> appears to be what I need, however I am not sure how I would go about and
>> use the script?  Its appears that “this.” is defined in the js as the
>> hotspot, and _svg2 is the hot spot ID, but everything I have tried to
>> cobble together to apply this command has not worked. I’m not sure where it
>> should even be located in the process?
>> 
>> I’ve shared the LiveCode project and VR files here:
>> https://dl.dropboxusercontent.com/u/6767916/VR_and_Javascript_Example.zip
>> <https://dl.dropboxusercontent.com/u/6767916/VR_and_Javascript_Example.zip
>>> 
>> 
>> Any help is greatly appreciated!
>> 
>> John Patten
>> SUSD
>> 
>> 
>> 
>>> On Jan 30, 2017, at 8:01 PM, Mike Bonner via use-livecode <
>> use-livecode at lists.runrev.com> wrote:
>>> 
>>> Depending on what version of LC you're using,k and if you're using the
>>> widget, or openrevbrowser
>>> look at revBrowserAddJavascriptHandler in the dictionary.
>>> 
>>> If using the widget, use the dropdown to select the browser widget in the
>>> dictionary and look at the javascripthandlers property.
>>> 
>>> 
>>> 
>>> On Mon, Jan 30, 2017 at 8:22 PM, JOHN PATTEN via use-livecode <
>>> use-livecode at lists.runrev.com <mailto:use-livecode at lists.runrev.com>>
>> wrote:
>>> 
>>>> Hi All,
>>>> 
>>>> I’m not sure if this is possible with Livecode, but I thought I’d ask
>>>> anyways.
>>>> 
>>>> I have a html5 panorama I created in a trial version of Pano2VR. I
>> posted
>>>> it up here: http://jpatten.on-rev.com/vrjs/index.html <
>> http://jpatten.on-rev.com/vrjs/index.html> <
>>>> http://jpatten.on-rev.com/vrjs/index.html <http://jpatten.on-rev.com/
>> vrjs/index.html>>
>>>> 
>>>> This pano has one hot spot that just throws a JavaScript alert, “Hello
>>>> World.”  So I know I can create a Javascript inside a hotspot in the
>> pano
>>>> using the Pano2VR app.
>>>> 
>>>> Here are my questions.
>>>> 
>>>> 1. Can Livecode intercept the Javascript result in the browser object
>> and
>>>> act on it?  If it can, I’m guessing I could have it return text and then
>>>> have Livecode run an action. Something like…  if varText = “picture 1”
>>>> then, show picture one … else/switch if vartex = "picture 2" then open
>>>> "picture 2", etc. etc. etc.
>>>> 
>>>> 
>>>> 2. I would like to have hotspots in a panoramic image run JavaScripts
>> that
>>>> LiveCode intercepts, and then act on what it catches to runs scripts in
>> the
>>>> stack. One hot spot might open and image. Another might open a substack,
>>>> etc. etc. all within the LiveCode project. The Browser Object is used
>> only
>>>> to present the panoramic image, and the pano image acts as s pseudo
>>>> navigation object for additional content.
>>>> 
>>>> Anybody have a simple example of what the Javascript in the pano might
>>>> look like, as opposed to just an alert? What scripts would I use to
>> capture
>>>> and act on the Javascript in the browser object?
>>>> 
>>>> Or, maybe this is not possible…?
>>>> 
>>>> Thank you!
>>>> 
>>>> John Patten
>>>> SUSD
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
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