This is great! Thank you Trevor!
> On May 20, 2020, at 5:01 PM, Trevor DeVore via use-livecode > <use-livecode@lists.runrev.com> wrote: > > On Wed, May 20, 2020 at 5:12 PM Peter Bogdanoff via use-livecode < > use-livecode@lists.runrev.com> wrote: > >> Has anyone worked on the idea of accessing a LiveCode application from a >> web browser, such as happens with Zoom? With a URL link to a zoom.us >> page, the webpage shows a dialog: >> >> “Do you want to allow this page to open ‘zoom.us’?” >> >> which then opens the local app zoom.us. >> >> My use for this would be for enabling a user using an online LMS (learning >> management system) to directly access a location in my application on their >> local machine. >> >> I see a few methods described online, but was wondering if anyone has >> experience with this. >> > > ScreenSteps uses this technique for sending actions from our web app to our > desktop. Extensive testing has been done on macOS and Windows. The Levure > framework has the file_system helper which does most of the work for you > on Windows, macOS, and iOS so you can look at that code for guidance. You > can find the source code at the link below. I will link to specific code > examples below as well. > > https://github.com/trevordevore/levure/tree/develop/framework/helpers/file_system > > There are three parts that make up a working solution - registration, > processing requests, and triggering requests. Here is a description of > each. Hopefully I'm not missing anything. I coded this a long time in > Levure and haven't had to think about it much since. > > 1. Tell the operating system your app can handle a url protocol. > > ## Windows > > You will need to modify the registry. Here is a link to the command that > updates the registry in the file_system helper: > https://github.com/trevordevore/levure/blob/develop/framework/helpers/file_system/file_system.livecodescript#L193 > > The command uses levureStandaloneFilename(), a framework function that > returns the full path to the standalone application. Just replace that with > a similar function so that you can add the full path to your app to the > registry. > > This command can be called each time your application launches if you want > to make sure that the version the user just launched is the one the OS will > send a url request to. > > ## macOS and iOS > > Add the URL protocol you want to add to your Info.plist file. It will look > something like this (taken from the ScreenSteps Info.plist file) : > > <?xml version="1.0" encoding="UTF-8"?> > <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" " > http://www.apple.com/DTDs/PropertyList-1.0.dtd";> > <plist version="1.0"> > <dict> > ... OTHER STUFF > <array> > <dict> > <key>CFBundleURLName</key> > <string>ScreenSteps URL</string> > <key>CFBundleURLSchemes</key> > <array> > <string>x-screensteps-app</string> > <string>screensteps</string> > <string>screensteps-4</string> > </array> > </dict> > </array> > </dict></plist> > > 2. Process URL requests sent by the OS to your app > > ## Windows > Process `relaunch` command, extract command line arguments looking for url. > > `relaunch` is handled within main Levure script: > https://github.com/trevordevore/levure/blob/develop/framework/levure.livecodescript#L46 > > The file_system helper processes the parameters though: > https://github.com/trevordevore/levure/blob/develop/framework/levure.livecodescript#L46 > > ## macOS > Process the appleEvent with pClass "GURL" AND pID "GURL". > > https://github.com/trevordevore/levure/blob/develop/framework/helpers/file_system/file_system.livecodescript#L111 > > ## iOS > Process `urlWakeUp`. > > https://github.com/trevordevore/levure/blob/develop/framework/helpers/file_system/file_system.livecodescript#L65 > > 3. Triggering requests > > Triggering requests is as simple as using your custom protocol in an <a> > tag in your web page. > > <a href="screensteps://some/information/for/desktop/to?parse=1">Click me</a> > > Hopefully this helps you implement the behavior in your own app. > > -- > Trevor DeVore > ScreenSteps - https://www.screensteps.com > Levure App Framework for LiveCode - https://github.com/trevordevore/levure/ > LiveCode Repos - > https://github.com/search?q=user%3Atrevordevore+topic:livecode > LiveCode Builder Repos - > https://github.com/search?q=user%3Atrevordevore+topic:livecode-builder > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
