photoshopCore

The core module allows access to specialized commands within the application. Various application state properties can be modified or queried here.

Some of these commands can be considered experimental. Some will be integrated into the DOM at a later date. The use of which will then be easier, for example, removing the need to specify the document ID as an argument.

var PhotoshopCore = require('photoshop').core;
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var PhotoshopCore = require('photoshop').core;

Properties

Functions

addNotificationListener

async : Promise<void>

Attach a listener to a Photoshop core event. A callback in the form of (eventName: string, descriptor: Descriptor) => void will be performed. The event(s) below are supported:

group: 'UI', event: 'userIdle'

• Invoked after the Photoshop user idles for a specified number of seconds. See setUserIdleTime.
• Invoked a second time with the descriptor {idleEnd: true} if the user is no longer idle. This signal can be used to finish up tasks being performed during the idle time.

await PhotoshopCore.addNotificationListener('UI', ['userIdle'], onUserIdle)
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await PhotoshopCore.addNotificationListener('UI', ['userIdle'], onUserIdle)

Parameters

calculateDialogSize

async : Promise<{ height: number ; width: number }>

Returns the effective size of a dialog.

var idealSize = { width: 200, height: 500 }
{ width, height} = await PhotoshopCore.calculateDialogSize(idealSize)
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1var idealSize = { width: 200, height: 500 }
2{ width, height} = await PhotoshopCore.calculateDialogSize(idealSize)

Parameters

convertColor

RGBColorDescriptor | RGB32ColorDescriptor

Converts the given color (in descriptor form) to RGB, returning the color descriptor.

This is an internal API that is used for SolidColor and all the other color classes.

Currently, this API uses the application color settings for conversion (Edit > Color Settings...). ' In the future, we will provide color conversion based on embedded color profiles.

Parameters

LabColorDescriptor

Convert to Lab

Parameters

HSBColorDescriptor

Convert to HSB

Parameters

GrayscaleColorDescriptor

Convert to Grayscale

Parameters

CMYKColorDescriptor

Convert to CMYK

Parameters

createTemporaryDocument

object

Create a temporary duplicate document for background processing. This document does not appear in the UI, and there are limitations with some editing features.

await PhotoshopCore.createTemporaryDocument({documentID:123})
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await PhotoshopCore.createTemporaryDocument({documentID:123})

Parameters

deleteTemporaryDocument

void

Remove a temporary document.

await PhotoshopCore.deleteTemporaryDocument({documentID:146})
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await PhotoshopCore.deleteTemporaryDocument({documentID:146})

Parameters

endModalToolState

async : Promise<void>

End the current modal tool editing state.

// close the modal dialog, cancelling changes
await PhotoshopCore.endModalToolState(false)
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1// close the modal dialog, cancelling changes
2await PhotoshopCore.endModalToolState(false)

Parameters

executeAsModal

async : Promise<void>

ExecuteAsModal is needed when a plugin wants to make modifications to the Photoshop state. This includes scenarios where the plugin wants to create or modify documents, or the plugin wants to update UI or preference state.

ExecuteAsModal is only available to plugin that is using apiVersion 2 or higher.

See Modal Execution for details

Parameters

getActiveTool

async : Promise<{ classID: string ; isModal: boolean ; key: string ; title: string }>

Returns information about the active Photoshop tool.

{ title } = await PhotoshopCore.getActiveTool()
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{ title } = await PhotoshopCore.getActiveTool()

getCPUInfo

CPUInfo

Returns information about the host CPU.

{ logicalCores, frequencyMhz, vendor } = PhotoshopCore.getCPUInfo()
var isAMD = vendor === "AMD"
var isARM = vendor === "ARM"
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1{ logicalCores, frequencyMhz, vendor } = PhotoshopCore.getCPUInfo()
2var isAMD = vendor === "AMD"
3var isARM = vendor === "ARM"

getDisplayConfiguration

Promise<object>

Returns the current display configuration.

Note: returned units differ by platform.

• Mac uses logical units, points.
• Windows uses physical units, pixels.

psCore.getDisplayConfiguration( {physicalResolution: true} )
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psCore.getDisplayConfiguration( {physicalResolution: true} )

Parameters

getGPUInfo

GPUInfo

Returns OpenGL and OpenCL information about the available graphics processor.

{ gpuInfoList, clgpuInfoList } = PhotoshopCore.getGPUInfo()
console.log(JSON.stringify(gpuInfoList))
// > [{"version":"2.1 ATI-4.5.14","memoryMB":8192,"name":"16915464", ...}]
console.log(JSON.stringify(clgpuInfoList))
// > [{"version":"OpenCL 1.2 ","memoryMB":8589,"name":"AMD Radeon Pro 580X Compute Engine", ...}]
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1{ gpuInfoList, clgpuInfoList } = PhotoshopCore.getGPUInfo()
2console.log(JSON.stringify(gpuInfoList))
3// > [{"version":"2.1 ATI-4.5.14","memoryMB":8192,"name":"16915464", ...}]
4console.log(JSON.stringify(clgpuInfoList))
5// > [{"version":"OpenCL 1.2 ","memoryMB":8589,"name":"AMD Radeon Pro 580X Compute Engine", ...}]

getLayerGroupContents

Promise<{ list: LayerTreeInfo[] }>

Returns a list of the layers contained by the specified layer group.

await psCore.getLayerGroupContents({"documentID": 123, "layerID": 9})
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await psCore.getLayerGroupContents({"documentID": 123, "layerID": 9})

Parameters

getLayerGroupContentsSync

object

Returns a list of the layers contained by the specified layer group.

psCore.getLayerGroupContentsSync({"documentID": 123, "layerID": 9})
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psCore.getLayerGroupContentsSync({"documentID": 123, "layerID": 9})

Parameters

getLayerTree

Promise<{ list: LayerTreeInfo[] }>

Returns the full hierarchy of the layer stack in nested "lists".

await psCore.getLayerTree( {documentID: 123} )
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await psCore.getLayerTree( {documentID: 123} )

Parameters

getLayerTreeSync

object

Returns the full hierarchy of the layer stack in nested "lists".

psCore.getLayerTree( {documentID: 123} )
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psCore.getLayerTree( {documentID: 123} )

Parameters

getMenuCommandState

async : Promise<boolean>

Returns whether a command menu item is available for invoking.

// can a Fill be performed?
var canFill = await PhotoshopCore.getMenuCommandState({ commandID: 1042 })
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1// can a Fill be performed?
2var canFill = await PhotoshopCore.getMenuCommandState({ commandID: 1042 })

Parameters

getMenuCommandTitle

async : Promise<string>

Returns the localized menu title of the menu command item.

var renameLayerStr = await PhotoshopCore.getMenuCommandTitle({ commandID: 2983 })
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var renameLayerStr = await PhotoshopCore.getMenuCommandTitle({ commandID: 2983 })

Parameters

getPluginInfo

async : Promise<ActionDescriptor>

Return information about the execution of the plugin. This method is intended for developing plugins. Shipping code should not use this method.

The returned information include the following properties:

numberOfPendingMainThreadTasks: Number of pending promises.

batchPlayCount: Number of batchPlay calls since the plugin was loaded.

mainThreadTimeOutCount: Number of JavaScript calls that have timed out. This is typically caused by executing commands while Photoshop is modal without using executeAsModal.

v8HeapSize: V8 heap allocated for the plugin. This number is only accurate when loading plugins through the UXP Developer Tool.

await PhotoshopCore.getPluginInfo()
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await PhotoshopCore.getPluginInfo()

getUserIdleTime

Promise<void>

Return the current number of seconds for user idle time. See also: setUserIdleTime

await PhotoshopCore.getUserIdleTime()
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await PhotoshopCore.getUserIdleTime()

historySuspended

Promise<boolean>

Returns true if the history is in a suspended state. See Document.suspendHistory.

await psCore.historySuspended( {documentID: 123} )
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await psCore.historySuspended( {documentID: 123} )

Parameters

isModal

boolean

Returns true if the plugin is currently in a modal state using executeAsModal

performMenuCommand

async : Promise<boolean>

Invokes the menu command via its commandID. Returns false on failure, or if the command is not available.

// select all
await PhotoshopCore.performMenuCommand({ commandID: 1017 })
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1// select all
2await PhotoshopCore.performMenuCommand({ commandID: 1017 })

Parameters

redrawDocument

async : Promise<number>

Request that Photoshop redraws (updates) a document immediately. This method can be used to ensure that the document is updated immediately while a user is interacting with a UI element (such as a slider). This can provide a more responsive interaction. Updating a document can be time consuming, and will often happen at a lower frequency than UI events are received. Plugins may therefore want to implement a throttle between UI events and calls to redrawDocument. A throttle could be implemented by using a timer, or by avoiding to call redrawDocument for a small amount of time after a previous request completes. redrawDocument returns the time that it took Photoshop to update the target document in seconds. This number can be used to refine the throttle. redrawDocument is only available to a plugin that is using apiVersion 2 or higher.

await PhotoshopCore.redrawDocument({ documentID: 123})
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await PhotoshopCore.redrawDocument({ documentID: 123})

Parameters

removeNotificationListener

Promise<void>

Detaches a listener from a Photoshop event. See addNotificationListener

await PhotoshopCore.addNotificationListener('UI', ['userIdle'], onUserIdle)
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await PhotoshopCore.addNotificationListener('UI', ['userIdle'], onUserIdle)

Parameters

setExecutionMode

async : Promise<void>

The execution mode can be used while debugging a plugin. It is only available when the developer mode is enabled.

The following example illustrate how to enable stacktraces for batchPlay commands that fail. When stacktraces are enabled, then an error result descriptor from a batchPlay request will include a stacktrace property. The property can be used when reporting bugs to Adobe.

await PhotoshopCore.setExecutionMode({ enableErrorStacktraces: true })
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await PhotoshopCore.setExecutionMode({ enableErrorStacktraces: true })

The following illustrates how to enable console warnings when a promise is rejected:

await PhotoshopCore.setExecutionMode({ logRejections: true })
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await PhotoshopCore.setExecutionMode({ logRejections: true })

Parameters

setUserIdleTime

Promise<void>

Specifies the number of seconds a user must be idle on Photoshop before invoking the userIdle event handler defined with addNotificationListener. An idleTime of 0 turns off idle notifications.

await PhotoshopCore.setUserIdleTime(3)
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await PhotoshopCore.setUserIdleTime(3)

Parameters

showAlert

async : Promise<void>

Show a generic alert box to the user. 'OK' to dismiss.

// script has completed.
await PhotoshopCore.showAlert({ message: 'Operation successful'})
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1// script has completed.
2await PhotoshopCore.showAlert({ message: 'Operation successful'})

Parameters

suppressResizeGripper

Promise<void>

The "resize gripper", a small square in the botton-right corner of a panel, may be hidden by this function. This square will appear above the contents the panel itself including scrollbars. While many panels over the years have simply left space at the bottom to accomodate the gripper, this option removes it.

await PhotoshopCore.suppressResizeGripper({type: "panel", target: "panel's ID", value: true})
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await PhotoshopCore.suppressResizeGripper({type: "panel", target: "panel's ID", value: true})

The value for target above will be the id attached to the panel's entry under entrypoints in the plugin manifest.

translateUIString

string

Given a Photoshop ZString (of format "$$$/slash/separated/key=english default value"), will return the translated string for the current UI language

Parameters

Last updated 4/8/2022

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