To toggle you need to know the current state Photoshop is in for either its UI for all documents being processes or if it is a toggle per document being edited the state the documents are in for example guides per document. The global state can be keep in a custom script option, for document toggle I use each the document's metadata info field. The other part is knowing the current state you need to be able to change the state via DOM or Action Manager Code.
#target photoshop
cTID = function(s) { return app.charIDToTypeID(s); };
sTID = function(s) { return app.stringIDToTypeID(s); };
function toggleproofcolor() {
// Select
function step1(enabled, withDialog) {
if (enabled != undefined && !enabled)
return;
var dialogMode = (withDialog ? DialogModes.ALL : DialogModes.NO);
var desc1 = new ActionDescriptor();
var ref1 = new ActionReference();
ref1.putEnumerated(cTID('Mn '), cTID('MnIt'), sTID("toggleProofColors"));
desc1.putReference(cTID('null'), ref1);
executeAction(cTID('slct'), desc1, dialogMode);
};
step1();
};
Adobe introduced a bug in CC 2015.5 that can break script that use metadata for things like toggle. I needed to add script events to CC 2015.5 and CC 2017 to add garbage into the info field to work around Adobe bug. Here is a toggle for centering guide line for documents. They will reposition when you chang canvas size when you toggle them on and off after change canvas. Note this will n]ot work in CC 2015.5 and CC 2017 unless you add garbage to metadat info field.
/* ======================================================================================
// 2015 John J. McAssey (JJMack) http://www.mouseprints.net/
//
// This script is supplied as is. It is provided as freeware.
// The author accepts no liability for any problems arising from its use.
//
// This script is designed to Toggle centering guides.
// assign a shortcut I use this in an action assigned to F12.
//
// ===================================================================================== */
/*
<javascriptresource>
<about>$$$/JavaScripts/AddRemoveCenterGuides/About=JJMack's AddRemoveCenterGuides.^r^rCopyright 2009 Mouseprints.^r^rRun twice script utility for action.^r^rFirst Run Set Guides on camvas bounds and center.^rSecond Run clears the set guides.</about>
<category>JJMack's Action Run Twice Utility</category>
</javascriptresource>
*/
if (app.documents.length > 0) app.activeDocument.suspendHistory('ToggleCenterGuides','main()' );
else alert("You must have at least one open document to run this script!");
///////////////////////////////////////////////////////////////////////////////////////////
function main() {
if (app.activeDocument.info.instructions.indexOf("<CenterGuides>") == -1 ){ // no footprint fisrt useage
var orig_ruler_units = app.preferences.rulerUnits;
app.preferences.rulerUnits = Units.PIXELS; // Set the ruler units to PIXELS
try {
activeDocument.guides.add(Direction.VERTICAL, 0);
activeDocument.guides.add(Direction.VERTICAL, activeDocument.width/4);
activeDocument.guides.add(Direction.VERTICAL, activeDocument.width/2);
activeDocument.guides.add(Direction.VERTICAL, activeDocument.width*3/4);
activeDocument.guides.add(Direction.VERTICAL, activeDocument.width);
activeDocument.guides.add(Direction.HORIZONTAL, 0);
activeDocument.guides.add(Direction.HORIZONTAL, activeDocument.height/4);
activeDocument.guides.add(Direction.HORIZONTAL, activeDocument.height/2);
activeDocument.guides.add(Direction.HORIZONTAL, activeDocument.height*3/4);
activeDocument.guides.add(Direction.HORIZONTAL, activeDocument.height);
}
// display error message if something goes wrong
catch(e) { alert(e + ': on line ' + e.line, 'Script Error', true); }
app.preferences.rulerUnits = orig_ruler_units; // Reset units to original settings
// put footprint in metadata info instructions
app.activeDocument.info.instructions = app.activeDocument.info.instructions + "<CenterGuides>" + " Show" + "</CenterGuides>";
}
else {
clearGuides();
// Remove footprint from metadata info instructions
before = app.activeDocument.info.instructions.substr(0,app.activeDocument.info.instructions.indexOf("<CenterGuides>"));
afterOffset = app.activeDocument.info.instructions.indexOf("</CenterGuides>") + "</CenterGuides>".length;
after = app.activeDocument.info.instructions.substr(afterOffset, app.activeDocument.info.instructions.length - afterOffset);
//alert ("before = " + before + " after = " + after);
app.activeDocument.info.instructions = before + after;
//alert("app.activeDocument.info.instructions = " + app.activeDocument.info.instructions);
}
}
//////////////////////////////////////////// Action Manager Code to Clear all Guides ///////////////////////////////////
function clearGuides() {
var id556 = charIDToTypeID( "Dlt " );
var desc102 = new ActionDescriptor();
var id557 = charIDToTypeID( "null" );
var ref70 = new ActionReference();
var id558 = charIDToTypeID( "Gd " );
var id559 = charIDToTypeID( "Ordn" );
var id560 = charIDToTypeID( "Al " );
ref70.putEnumerated( id558, id559, id560 );
desc102.putReference( id557, ref70 );
executeAction( id556, desc102, DialogModes.NO );
};
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