PS中执行N遍选定动作的脚本（2）

贴出代码，方便指正优化

操作对象：
任何录制好的动作；

操作结果：
对选定的动作，重复执行指定次数；（效果要靠动作本身实现）

用法：
把解压出来的 “执行N遍动作.jsx” 文件复制到 “ps安装目录\预置\脚本” 下，重新打开ps以后就可以在~
[菜单- 文件-脚本] 里面找到 “执行N遍动作”
或者解压出来，在开着ps的情况下，直接双击也可以用。

备注：
执行操作前可以先建立快照，如果对操作结果不满意，可以通过快照返回。
（不过如果是多个文件、保存关闭之类的操作就别选了，恐怕会出错 ）

#target photoshop
app.bringToFront();
// 重复执行N遍选中的动作
/////////////////////////////////////////////////////////////////////
// Function: GlobalVariables
// Usage: global action items that are reused
// Input: <none>
// Return: <none>
/////////////////////////////////////////////////////////////////////
function GlobalVariables() {
    gClassActionSet = charIDToTypeID( 'ASet' );
    gClassAction = charIDToTypeID( 'Actn' );
    gKeyName = charIDToTypeID( 'Nm  ' );
    gKeyNumberOfChildren = charIDToTypeID( 'NmbC' );
}
/////////////////////////////////////////////////////////////////////
// Function: GetActionSetInfo
// Usage: walk all the items in the action palette and record the action set
//        names and all the action children
// Input: <none>
// Return: the array of all the ActionData
// Note: This will throw an error during a normal execution. There is a bug
// in Photoshop that makes it impossible to get an acurate count of the number
// of action sets.
/////////////////////////////////////////////////////////////////////
function GetActionSetInfo() {
    var actionSetInfo = new Array();
    var setCounter = 1;
      while ( true ) {
        var ref = new ActionReference();
        ref.putIndex( gClassActionSet, setCounter );
        var desc = undefined;
        try { desc = executeActionGet( ref ); }
        catch( e ) { break; }
        var actionData = new ActionData();
        if ( desc.hasKey( gKeyName ) ) {
            actionData.name = desc.getString( gKeyName );
        }
        var numberChildren = 0;
        if ( desc.hasKey( gKeyNumberOfChildren ) ) {
            numberChildren = desc.getInteger( gKeyNumberOfChildren );
        }
        if ( numberChildren ) {
            actionData.children = GetActionInfo( setCounter, numberChildren );
            actionSetInfo.push( actionData );
        }
        setCounter++;
    }
    return actionSetInfo;
}
/////////////////////////////////////////////////////////////////////
// Function: GetActionInfo
// Usage: used when walking through all the actions in the action set
// Input: action set index, number of actions in this action set
// Return: true or false, true if file or folder is to be displayed
/////////////////////////////////////////////////////////////////////
function GetActionInfo( setIndex, numChildren ) {
    var actionInfo = new Array();
    for ( var i = 1; i <= numChildren; i++ ) {
        var ref = new ActionReference();
        ref.putIndex( gClassAction, i );
        ref.putIndex( gClassActionSet, setIndex );
        var desc = undefined;
        desc = executeActionGet( ref );
        var actionData = new ActionData();
        if ( desc.hasKey( gKeyName ) ) {
            actionData.name = desc.getString( gKeyName );
        }
        var numberChildren = 0;
        if ( desc.hasKey( gKeyNumberOfChildren ) ) {
            numberChildren = desc.getInteger( gKeyNumberOfChildren );
        }
        actionInfo.push( actionData );
    }
    return actionInfo;
}
/////////////////////////////////////////////////////////////////////
// Function: ActionData
// Usage: this could be an action set or an action
// Input: <none>
// Return: a new Object of ActionData
/////////////////////////////////////////////////////////////////////
function ActionData() {
    this.name = "";
    this.children = undefined;
    this.toString = function () {
        var strTemp = this.name;
        if ( undefined != this.children ) {
            for ( var i = 0; i < this.children.length; i++ ) {
                strTemp += " " + this.children[i].toString();
            }
        }
        return strTemp;
    }
}
//////////
function CreateSnapshot(name) {
   function cTID(s) { return app.charIDToTypeID(s); };
    var desc = new ActionDescriptor();
    var ref = new ActionReference();
        ref.putClass( cTID('SnpS') );
    desc.putReference( cTID('null'), ref );
        var ref1 = new ActionReference();
        ref1.putProperty( cTID('HstS'), cTID('CrnH') );
    desc.putReference( cTID('From'), ref1 );
    desc.putString( cTID('Nm  '), name);
    desc.putEnumerated( cTID('Usng'), cTID('HstS'), cTID('FllD') );
    executeAction( cTID('Mk  '), desc, DialogModes.NO );
}
//////////
res ="dialog { \
text:'重复执行选定动作',\
        group: Group{orientation: 'column',alignChildren:'left',\
                corrdination: Panel { orientation: 'row', \
                        text: '选择动作', \
                                cla: Group { orientation: 'row', \
                                        d: DropDownList {  alignment:'left' },\
                                        }\
                                act: Group { orientation: 'row', \
                                        d: DropDownList {  alignment:'left' },\
                                        }\
                                },  \
                num: Group { orientation: 'row', \
                                    s: StaticText { text:'执行次数:' }, \
                                    e: EditText { preferredSize: [50, 20] } ,\
                                    }, \
                Snapshot:Group{ orientation: 'row', \
                                    c: Checkbox { preferredSize: [16, 16]} ,\
                                    s: StaticText {text:'建立快照（根据动作内容适当选择）'},\
                                    }, \
                },\
        buttons: Group { orientation: 'row', alignment: 'right',\
                Btnok: Button { text:'确定', properties:{name:'ok'} }, \
                Btncancel: Button { text:'取消', properties:{name:'cancel'} } \
                } \
}";
    
win = new Window (res);
    
    GlobalVariables();
    var actionInfo = GetActionSetInfo();
    var ddSet=win.group.corrdination.cla.d;
    var ddAction=win.group.corrdination.act.d;
    if ( actionInfo.length > 0 ) {
        for ( var i = 0; i < actionInfo.length; i++ ) {
            ddSet.add( "item", actionInfo[i].name );
        }
        ddSet.items[0].selected = true;
        ddSet.onChange = function() {
            ddAction.removeAll();
            for ( var i = 0; i < actionInfo[ this.selection.index ].children.length; i++ ) {
                ddAction.add( "item", actionInfo[ this.selection.index ].children[ i ].name );
            }
            if ( ddAction.items.length > 0 ) {
                ddAction.items[0].selected = true;
            }
            ddSet.helpTip = ddSet.items[ ddSet.selection.index ].toString();
        }
        ddSet.onChange();
    } else {
        ddSet.enabled = false;
        ddAction.enabled = false;
    }
    
    ddAction.onChange = function() {
        ddAction.helpTip = ddAction.items[ ddAction.selection.index ].toString();
    }
    
win.buttons.Btncancel.onClick = function () {
this.parent.parent.close();
}
win.buttons.Btnok.onClick = function () {
    g=Number(win.group.num.e.text);
    if(g<1){
        alert ('-_-!!! 至少得运行一次吧？')
        win.group.num.e.text='1';
        g=1
    }else {
        var b=win.group.Snapshot.c.value;        
        if(b && app.documents.length) {CreateSnapshot(g+"遍动作执行前");} //安全起见，建立快照
        for(i=0;i<g;i++){
        doAction(ddAction.selection,ddSet.selection) //执行选择的动作
        }
        this.parent.parent.close();
    }
}
win.center();
win.show();