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photoshop javascript window 的一个例子

参考连接：Photoshop scripts · GitHub

// Open Recent Files - Adobe Photoshop Script
// Description: displays a Recent Files dialog; allows you to open multiple recent documents
// Requirements: Adobe Photoshop CS3, or higher
// Version: 0.2.0, 14/Feb/2014
// Author: Trevor Morris (trevor@morris-photographics.com)
// Website: http://morris-photographics.com/
// ============================================================================
// Installation:
// 1. Place script in:
//    PC(32):  C:\Program Files (x86)\Adobe\Adobe Photoshop CS#\Presets\Scripts\
//    PC(64):  C:\Program Files\Adobe\Adobe Photoshop CS# (64 Bit)\Presets\Scripts\
//    Mac:     <hard drive>/Applications/Adobe Photoshop CS#/Presets/Scripts/
// 2. Restart Photoshop
// 3. Choose File > Scripts > Open Recent Files
// ============================================================================

// enable double-clicking from Mac Finder or Windows Explorer
#target photoshop

// bring application forward for double-click events
app.bringToFront();

///////////////////////////////////////////////////////////////////////////////
// main - main function
///////////////////////////////////////////////////////////////////////////////
function main() {

    // the maximum number of recent files to display
    var maxFiles = 10;

    // get only existing recent files
    var recentItems = [];
    var len = recentFiles.length;
    for (var i = 0; i < len; i++) {
        recentFile = recentFiles[i];
        if (recentFile.exists) {
            recentItems.push(recentFile);
            if (recentItems.length == maxFiles) {
                break;
            }
        }
    }

    // check for recent files
    len = recentItems.length;
    if (!len) {
        alert('No recent files found.', 'No Recent Files', false);
        return;
    }

    // update maxFiles
    maxFiles = Math.min(maxFiles, len);

    // show Recent Files dialog
    var rfDialog = recentFilesDialog(recentItems, maxFiles);
    rfDialog.show();
}

///////////////////////////////////////////////////////////////////////////////
// recentFilesDialog - create the Recent Files dialog
///////////////////////////////////////////////////////////////////////////////
function recentFilesDialog(recentItems, maxFiles) {

    // dialog window
    var dlg = new Window('dialog');
    dlg.text = 'Open Recent Files';
    dlg.orientation = 'row';
    dlg.alignChildren = 'top';

    // recent items panel    
    var panel = dlg.add('panel');
    panel.text = 'Recent Files';
    panel.alignChildren = 'left';

    // recent items checkboxes
    var cb, rf;
    var checkboxes = [];
    for (var i = 0; i < maxFiles; i++) {
        rf = recentItems[i];
        cb = panel.add('checkbox');
        cb.text = ' ' + decodeURI(rf.name);
        cb.helpTip = rf.fsName;
        checkboxes.push(cb);
    }

    // buttons
    var buttons = dlg.add('group');
    buttons.orientation = 'column';
    buttons.alignChildren = 'fill';

    // 'check all' button
    var checkAll = buttons.add('button');
    checkAll.text = 'Check All';
    checkAll.onClick = function() {
        toggleCheckBoxes(true);
    };

    // 'check none' button
    var checkNone = buttons.add('button');
    checkNone.text = 'Check None';
    checkNone.onClick = function() {
        toggleCheckBoxes(false);
    };

    // spacer
    var spacer = buttons.add('group');
    spacer.preferredSize.height = 10;

    // ok button
    var okBtn = buttons.add('button');
    okBtn.text = 'OK';
    okBtn.onClick = function() {
        dlg.close(1);
        openCheckedItems();
    };

    // cancel button
    var cancelBtn = buttons.add('button');
    cancelBtn.text = 'Cancel';
    cancelBtn.onClick = function() {
        dlg.close(2);
    };

    // dialog properties
    dlg.defaultElement = okBtn;
    dlg.cancelElement = cancelBtn;
    return dlg;

    // toggle checkboxes on/off
    function toggleCheckBoxes(enabled) {
        for (var i = 0; i < checkboxes.length; i++) {
            checkboxes[i].value = enabled;
        }
    }

    // open checked files
    function openCheckedItems() {
        for (var i = 0; i < checkboxes.length; i++) {
            if (checkboxes[i].value) {
                openFile(recentItems[i]);
            }
        }
    }
}

///////////////////////////////////////////////////////////////////////////////
// openFile - open the selected file
///////////////////////////////////////////////////////////////////////////////
function openFile(file) {
    try {
        open(file);
    }
    catch(e) {
        alert('Unable to open file:\r' + file.fsName, 'File Open Error', true);
    }
}

///////////////////////////////////////////////////////////////////////////////
// isCorrectVersion - check for Adobe Photoshop CS3 (v10) or higher
///////////////////////////////////////////////////////////////////////////////
function isCorrectVersion() {
    if (parseInt(version, 10) >= 10) {
        return true;
    }
    else {
        alert('This script requires Adobe Photoshop CS3 or higher.', 'Wrong Version', false);
        return false;
    }
}

///////////////////////////////////////////////////////////////////////////////
// showError - display error message if something goes wrong
///////////////////////////////////////////////////////////////////////////////
function showError(err) {
    if (confirm('An unknown error has occurred.\n' +
        'Would you like to see more information?', true, 'Unknown Error')) {
            alert(err + ': on line ' + err.line, 'Script Error', true);
    }
}

// test initial conditions prior to running main function
if (isCorrectVersion()) {
    try {
        main();
    }
    // don't report error on user cancel
    catch(e) {
        if (e.number != 8007) {
            showError(e);
        }
    }
}

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