Are these Photoshop script ideas possible?

[ryank45859795]

Hello, I'm looking to get into photoshop scripting but was curious if my ideas are even possible to begin with.
What I'd like to make:

- a hotkey for a specific brush
- a hotkey for alternating between two brush flow settings (e.g. press once = brush flow 20%, press twice = 80%, press again = back to 20%)

Thank you!

[c.pfaffenbichler · Accepted solution]

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@ryank45859795 wrote:

- a hotkey for alternating between two brush flow settings (e.g. press once = brush flow 20%, press twice = 80%, press again = back to 20%)

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// set brush tool to either 80% or 20% flow;
// 2025, use it at your own risk;
var ref = new ActionReference();
ref.putEnumerated( charIDToTypeID("capp"), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") ); 
var applicationDesc = executeActionGet(ref);
var theTool = typeIDToStringID(applicationDesc.getEnumerationType(stringIDToTypeID("tool")));
if (theTool == "paintbrushTool") {
var theCurrentToolOptions = applicationDesc.getObjectValue(stringIDToTypeID("currentToolOptions"));
var theFlow = theCurrentToolOptions.getInteger(stringIDToTypeID("flow"));
switch (theFlow) {
case 80:
setBrushToolFlow(20);
break;
case 20:
setBrushToolFlow(80);
break;
default:
setBrushToolFlow(80);
break;
};
};
////////////////////////////////////
function setBrushToolFlow (theFlow) {
(r = new ActionReference()).putProperty(stringIDToTypeID('property'), p = stringIDToTypeID('currentToolOptions'));
r.putEnumerated(stringIDToTypeID('application'), stringIDToTypeID('ordinal'), stringIDToTypeID('targetEnum'));
var tool = executeActionGet(r).getObjectValue(p);
if (tool.hasKey(stringIDToTypeID('brush'))) {
tool.putUnitDouble( stringIDToTypeID( "flow" ), stringIDToTypeID( "percentUnit" ), theFlow );
(r = new ActionReference()).putClass(stringIDToTypeID(currentTool));
(d = new ActionDescriptor()).putReference(stringIDToTypeID("target"), r);
d.putObject(stringIDToTypeID("to"), stringIDToTypeID("target"), tool);
executeAction(stringIDToTypeID("set"), d, DialogModes.NO);
};
};
////////////////////////////////////

[c.pfaffenbichler · Accepted solution]

- a hotkey for a specific brush

AM code can be used to select a brush by name. 

To avoid problems when the brush is absent one may want to wrap it in a try-clause. 

// =======================================================
var idselect = stringIDToTypeID( "select" );
    var desc4 = new ActionDescriptor();
    var idnull = stringIDToTypeID( "null" );
        var ref1 = new ActionReference();
        var idbrush = stringIDToTypeID( "brush" );
        ref1.putName( idbrush, "Hard Round 123 1083" );
    desc4.putReference( idnull, ref1 );
executeAction( idselect, desc4, DialogModes.NO );