How do I flip the canvas on my UXP plugin using js?

[Julio314819827s4i]

I am working on my first plugin.  I am also new to js, so admittedly I'm still learning some things.  However, I have every part of my plugin complete but I cannot seem to figure out how I am supposed to flip the canvas.  I just want to write a function that flips the canvas horizontally (or vertically) when called.  What do i call to be able to do this?  I've searched through every available app.document or app.activeDocument option i could find.  Am i missing something?  Rather than a plugin, should i be implementing a script instead or can i integrate both together?

[Stephen Marsh]

I don't know about UXP.

Standard JS DOM:

https://theiviaxx.github.io/photoshop-docs/Photoshop/Document/flipCanvas.html

https://theiviaxx.github.io/photoshop-docs/Photoshop/Direction.html#direction

Are you using Alchemist in your UXP development?

[Julio314819827s4i]

Funny you mention alchemist, just stumbled on it and installed it right before seeing your reply. I'm trying to understand how I incorporate it's code into a function I can run on a timer.

Thank you for your help btw.

[sttk3]

You need to call batchPlay, because flipCanvas does not seem to exist.

const photoshop = require('photoshop') ;
const { app, core } = photoshop ;
const { batchPlay } = photoshop.action ;

// flip canvas direction
const Direction = {
  'HORIZONTAL': 'horizontal', 
  'VERTICAL': 'vertical'
} ;

/**
  * flip canvas
  *  {Document} doc target document
  *  {String} [direction] flip canvas direction. 'horizontal' if it is undefined
*/
const flipCanvas = async (doc, direction = Direction.HORIZONTAL) => {
  await batchPlay(
    [
      {
        "_obj": "flip",
        "_target": [
          {
            "_ref": "document",
            "_id": doc.id
          }
        ],
        "axis": {
          "_enum": "orientation",
          "_value": direction
        }
      }
    ], 

    {}
  ) ;
} ;

const main = async () => {
  try {
    await core.executeAsModal(
      async (control) => {
        await flipCanvas(app.activeDocument, Direction.HORIZONTAL) ;
      }, 

      {'commandName': 'Flip Canvas'}
    ) ;
  } catch(e) {
    await app.showAlert(e) ;
  }
} ;

[Stephen Marsh]

That's why I'm sticking with the old scripting for as long as I can, UXP certainly hasn't made things any easier for a non-programmer to get into.

[Ciccillotto]

uxp as I see it it's a failure it's been almost 3 years now and I don't see many programmers migrating to this system. the documentation is still under development and many features are still closed. Adobe needs to review this project.

[sttk3]

Personally, I feel that UXP’s batchPlay has made Photoshop more easily extendable programmatically. Scripting Listener, which had the impression of just recording and playing back, is now very easy to modify.

However, UXP definitely requires more knowledge and skills than ExtendScript. It takes a lot of energy to start the first step.

[Ciccillotto]

for simple tasks and as you say but you agree with me that uxp is still immature, Keep in mind that I often go to the uxp developer forum and every day I always see new problems, where even experienced programmers find problems, even simply with a new photoshop update. If they don't decide to give us simple and above all stable tools, I doubt that anyone can use uxp.