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Photoshop插件-动作相关概念-非加载执行动作文件中动作-PS插件开发
2022-07-05 14:34:00 【插件开发】
1.非加载执行动作文件中动作
在PS脚本编程中，通过非加载的方式执行动作，可以不用将PS脚本加载进动作管理器，就可以执行对应的动作。代码如下所示：
app.bringToFront();
if(typeof jamActions !== 'object')
{
var jamActions = {
};
(function()
{
jamActions.isActionsFile = function(file)
{
return (file.type === '8BAC') || file.name.match( "/ \.atn$ / i");
};
jamActions.isActionsPalette = function(file)
{
return((file.type === '8BPF') && file.name.match( "/ ^Actions Palette$ / i")) || file.name.match( "/ ^Actions Palette.psp$ / i");
};
function readBEInt(file, byteCount)
{
var bytes = file.read(byteCount);
var intValue = 0;
for(var index = 0; index < byteCount; index++)
{
intValue = (intValue << 8) + bytes.charCodeAt(index);
}
return intValue;
}
function readBytes(file, byteCount)
{
return file.read(byteCount);
}
function readByteString(file)
{
var stringLength = readBEInt(file, 4);
return readBytes(file, stringLength);
}
function readUnicodeString(file)
{
var unicodeString = "";
var unicodeLength = readBEInt(file, 4);
for(var index = 0; index < unicodeLength; index++)
{
var unicodeChar = readBEInt(file, 2);
if(unicodeChar !== 0)
{
unicodeString += String.fromCharCode(unicodeChar);
}
}
return unicodeString;
}
function readEventId(file)
{
var eventId = 0;
var eventType = readBytes(file, 4);
switch(eventType)
{
case'TEXT':
eventId = app.stringIDToTypeID(readByteString(file));
break;
case'long':
eventId = app.charIDToTypeID(readBytes(file, 4));
break;
default:
throw new Error("[jamActions readEventId] Unrecognized event type: '" + eventType + "'");
break;
}
return eventId;
}
function skipDouble(file)
{
file.seek(8, 1);
}
function skipDoubles(file, doubleCount)
{
file.seek(doubleCount * 8, 1);
}
function skipInt8(file)
{
file.seek(1, 1);
}
function skipInt16(file)
{
file.seek(2, 1);
}
function skipInt32(file)
{
file.seek(4, 1);
}
function skipInt64(file)
{
file.seek(8, 1);
}
function skipBytes(file, byteCount)
{
file.seek(byteCount, 1);
}
function skipByteString(file)
{
var stringLength = readBEInt(file, 4);
skipBytes(file, stringLength);
}
function skipUnicodeString(file)
{
var unicodeLength = readBEInt(file, 4);
skipBytes(file, unicodeLength * 2);
}
function skipId(file)
{
var idLength = readBEInt(file, 4);
if(idLength)
{
skipBytes(file, idLength);
}
else
{
skipBytes(file, 4);
}
}
function skipClass(file)
{
skipUnicodeString(file);
skipId(file);
}
function skipObject(file)
{
skipClass(file);
var itemCount = readBEInt(file, 4);
for(var itemIndex = 0; itemIndex < itemCount; itemIndex++)
{
skipId(file);
skipItem(file);
}
}
function skipList(file)
{
var itemCount = readBEInt(file, 4);
for(var itemIndex = 0; itemIndex < itemCount; itemIndex++)
{
skipItem(file);
}
}
function skipItem(file)
{
var typeId = readBytes(file, 4);
switch(typeId)
{
case'obj ':
skipReference(file);
break;
case'Objc':
case'GlbO':
skipObject(file);
break;
case'type':
case'GlbC':
skipClass(file);
break;
case'VlLs':
skipList(file);
break;
case'doub':skipDouble(file);break;case'UntF':skipBytes(file,4);skipDouble(file);break;case'TEXT':skipUnicodeString(file);break;case'enum':skipId(file);skipId(file);break;case'long':skipInt32(file);break;case'comp':skipInt64(file);break;case'bool':skipInt8(file);break;case'alis':
skipByteString(file);
break;
case'Pth ':
skipByteString(file);
break;
case'tdta':
skipByteString(file);
break;
case'ObAr':
var objCount = readBEInt(file, 4);
skipClass(file);
var itemCount = readBEInt(file, 4);
for(var itemIndex = 0; itemIndex < itemCount; itemIndex++)
{
skipId(file);
skipInt32(file);
skipInt32(file);
var doublesCount = readBEInt(file, 4);
skipDoubles(file, doublesCount);
}
break;
default:
throw new Error("[jamActions skipItem] Unrecognized item type: '" + typeId + "'");
break;
}
}
function skipReference(file)
{
var itemCount = readBEInt(file, 4);
for(var itemIndex = 0; itemIndex < itemCount; itemIndex++)
{
var formId = readBytes(file, 4);
skipClass(file);
switch(formId)
{
case'Clss':break;case'prop':skipId(file);break;case'Enmr':skipId(file);skipId(file);break;case'rele':skipInt32(file);break;case'Idnt':skipInt32(file);break;case'indx':skipInt32(file);break;case'name':skipUnicodeString(file);
break;
default:
throw new Error("[jamActions skipReference] Unrecognized item form: '" + formId + "'");
break;
}
}
}
jamActions.readActionDescriptor = function(file, insertVersionPrefix)
{
var versionPrefix = "\x00\x00\x00\x10";
var start = file.tell();
if(!insertVersionPrefix)
{
if(file.read(4) === versionPrefix)
{
versionPrefix = "";
}
else
{
throw new Error('[jamActions.readActionDescriptor] Unrecognized version prefix');
}
}
skipObject(file);
var end = file.tell();
file.seek(start, 0);
var stream = versionPrefix + file.read(end - start);
var actionDescriptor = new ActionDescriptor();
actionDescriptor.fromStream(stream);
return actionDescriptor;
};
jamActions.dataFromActionsFile = function(actionsFile, isPalette)
{
var that = this;
function parseActionSet(file)
{
var actionSet = {
};
actionSet.name = localize(readUnicodeString(file));
actionSet.expanded = (readBEInt(file, 1) !== 0);
var actionCount = readBEInt(file, 4);
actionSet.actions = [];
for(var actionIndex = 0; actionIndex < actionCount; actionIndex++)
{
var action = {
};
action.functionKey = readBEInt(file, 2);
action.shiftKey = (readBEInt(file, 1) !== 0);
action.commandKey = (readBEInt(file, 1) !== 0);
action.colorIndex = readBEInt(file, 2);
action.name = localize(readUnicodeString(file));
action.expanded = (readBEInt(file, 1) !== 0);
var commandCount = readBEInt(file, 4);
action.commands = [];
for(var commandIndex = 0; commandIndex < commandCount; commandIndex++)
{
var command = {
};
command.expanded = (readBEInt(file, 1) !== 0);
command.enabled = (readBEInt(file, 1) !== 0);
command.withDialog = (readBEInt(file, 1) !== 0);
command.dialogOptions = readBEInt(file, 1);
command.eventId = readEventId(file);
command.dictionaryName = readByteString(file);
if(readBEInt(file, 4) !== 0)
{
command.actionDescriptor = that.readActionDescriptor(file, true);
}
action.commands.push(command);
}
actionSet.actions.push(action);
}
return actionSet;
}
var file;
if(typeof actionsFile === 'string')
{
file = new File(actionsFile);
}
else if(actionsFile instanceof File)
{
file = actionsFile;
}
else
{
throw new Error('[jamActions.dataFromActionsFile] Invalid argument');
}
var fileData;
if(file.open("r"))
{
try
{
file.encoding = 'BINARY';
var fileVersion = readBEInt(file, 4);
if(fileVersion === 16)
{
fileData = {
};
fileData.version = fileVersion;
if(isPalette)
{
fileData.actionSets = [];
var actionSetCount = readBEInt(file, 4);
for(var actionSetIndex = 0; actionSetIndex < actionSetCount; actionSetIndex++)
{
fileData.actionSets.push(parseActionSet(file));
}
}
else
{
fileData.actionSet = parseActionSet(file);
}
}
else
{
fileData = "Unsupported actions file version: " + fileVersion;
}
}
catch(e)
{
fileData = e.message;
}
finally {
file.close();}
}
else
{
fileData = "Cannot open file";
}
return fileData;
};
jamActions.isLocalPlayCommand = function(command, actionSetName)
{
var localPlayCommand = null;
if(command.eventId === app.stringIDToTypeID("play"))
{
var targetId = app.stringIDToTypeID("target");
if(command.actionDescriptor.hasKey(targetId))
{
var localReference = command.actionDescriptor.getReference(targetId);
do
{
try
{
var desiredClassId = localReference.getDesiredClass();
}
catch(e)
{
break;
}
switch(desiredClassId)
{
case app.stringIDToTypeID("command"):
var localCommandIndex = localReference.getIndex() - 1;
break;
case app.stringIDToTypeID("action"):
var localActionName = localReference.getName();
break;
case app.stringIDToTypeID("actionSet"):
var localActionSetName = localReference.getName();
break;
}
localReference = localReference.getContainer();
}
while(localReference);
}
var continueId = app.stringIDToTypeID("continue");
if(command.actionDescriptor.hasKey(continueId))
{
var localContinue = command.actionDescriptor.getBoolean(continueId);
}
if((typeof localActionSetName !== 'undefined') && (localActionSetName === actionSetName))
{
localPlayCommand = [localActionName, localCommandIndex, localContinue];
}
}
return localPlayCommand;
};
jamActions.determineDialogMode = function(command)
{
var dialogMode;
switch(command.dialogOptions)
{
case 0:
dialogMode = command.withDialog ? DialogModes.ALL : DialogModes.NO;
break;
case 2:
dialogMode = DialogModes.NO;
break;
case 1:
case 3:
dialogMode = DialogModes.ALL;
break;
}
return dialogMode;
}
var globalCommandHandler = null;
jamActions.setCommandHandler = function(commandHandler)
{
globalCommandHandler = commandHandler;
};
jamActions.traverseAction = function(actionSet, actionLocator, fromCommandIndex, continuePlay)
{
function handleCommands(commands)
{
var commandMax = (continuePlay) ? commands.length : fromCommandIndex + 1;
for(var commandIndex = fromCommandIndex; commandIndex < commandMax; commandIndex++)
{
if(globalCommandHandler !== null)
{
globalCommandHandler(commands[commandIndex]);
}
}
}
if(typeof fromCommandIndex === 'undefined')
{
fromCommandIndex = 0;
continuePlay = true;
}
var actions = actionSet.actions;
if(typeof actionLocator === 'string')
{
var actionName = actionLocator;
for(var actionIndex = 0; actionIndex < actions.length; actionIndex++)
{
var action = actions[actionIndex];
if(action.name === actionName)
{
handleCommands(action.commands);
break;
}
}
}
else if(typeof actionLocator === 'number')
{
var actionIndex = actionLocator;
if((actionIndex >= 0) && (actionIndex < actions.length))
{
handleCommands(actions[actionIndex].commands);
}
}
};
}
());
}
//------------------------------------------------------------------------------
if(documents.length)
{
Folder.current = new Folder ("E:/work/CurrentProject/PS66Plugin/客户提供/面版要求/动作/"); //Location of actionset folder.
var actionsFilePath = "66自定义大小.atn"; //Name of atn file.
var ActionName = "自定义2"; //Name of the action within the action set.
var fileData = jamActions.dataFromActionsFile (actionsFilePath);
if (typeof fileData === 'string')
{
alert (fileData + "\n" + "Actions file: “" + actionsFilePath + "”");
}
else
{
function executeCommand (command, ActionName)
{
if (command.enabled)
{
var dialogMode = jamActions.determineDialogMode (command);
app.executeAction (command.eventId, command.actionDescriptor, dialogMode);
}
}
jamActions.setCommandHandler (executeCommand);
jamActions.traverseAction (fileData.actionSet, ActionName);
};
};
2.作者寄语
合理的脚本代码可以有效的提高工作效率，减少重复劳动。
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