2 * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
3 * Copyright (C) $$Year-Rel$$ The Jalview Authors
5 * This file is part of Jalview.
7 * Jalview is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation, either version 3
10 * of the License, or (at your option) any later version.
12 * Jalview is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty
14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
19 * The Jalview Authors are detailed in the 'AUTHORS' file.
23 import java.awt.Component;
24 import java.awt.Dimension;
25 import java.awt.Toolkit;
26 import java.awt.event.KeyEvent;
27 import java.awt.event.MouseEvent;
28 import java.io.BufferedReader;
30 import java.io.FileOutputStream;
31 import java.io.FileReader;
32 import java.io.IOException;
33 import java.io.InputStream;
34 import java.io.InputStreamReader;
35 import java.io.Reader;
36 import java.lang.reflect.Method;
38 import java.nio.channels.Channels;
39 import java.nio.channels.ReadableByteChannel;
40 import java.nio.file.Files;
41 import java.nio.file.Path;
42 import java.nio.file.Paths;
43 import java.nio.file.StandardCopyOption;
44 import java.nio.file.attribute.BasicFileAttributes;
45 import java.util.Date;
46 import java.util.Locale;
48 import java.util.Properties;
49 import java.util.logging.ConsoleHandler;
50 import java.util.logging.Level;
51 import java.util.logging.Logger;
53 import javax.swing.SwingUtilities;
55 import org.json.simple.parser.JSONParser;
56 import org.json.simple.parser.ParseException;
58 import com.stevesoft.pat.Regex;
60 import jalview.bin.Jalview;
61 import jalview.javascript.json.JSON;
62 import swingjs.api.JSUtilI;
65 * System platform information used by Applet and Application
72 private static boolean isJS = /** @j2sNative true || */
75 private static Boolean isNoJSMac = null, isNoJSWin = null, isMac = null,
78 private static Boolean isHeadless = null;
80 private static swingjs.api.JSUtilI jsutil;
88 // this is ok - it's a highly embedded method in Java; the deprecation
90 // really a recommended best practice.
91 jsutil = ((JSUtilI) Class.forName("swingjs.JSUtil").newInstance());
92 } catch (InstantiationException | IllegalAccessException
93 | ClassNotFoundException e)
99 // private static Boolean isHeadless = null;
102 * added to group mouse events into Windows and nonWindows (mac, unix, linux)
106 public static boolean isMac()
108 return (isMac == null
109 ? (isMac = (System.getProperty("os.name").indexOf("Mac") >= 0))
113 public static int SHORTCUT_KEY_MASK = (Platform.isMac()
114 ? KeyEvent.META_DOWN_MASK
115 : KeyEvent.CTRL_DOWN_MASK);
119 // Using non-deprecated Extended key mask modifiers, but Java 8 has no
120 // getMenuShortcutKeyMaskEx method
121 Toolkit tk = Toolkit.getDefaultToolkit();
122 Method method = null;
125 method = tk.getClass().getMethod("getMenuShortcutKeyMaskEx");
126 } catch (NoSuchMethodException e)
129 "Could not find Toolkit method getMenuShortcutKeyMaskEx. Trying getMenuShortcutKeyMask.");
135 method = tk.getClass().getMethod("getMenuShortcutKeyMask");
136 } catch (NoSuchMethodException e)
139 "Could not find Toolkit method getMenuShortcutKeyMaskEx or getMenuShortcutKeyMask.");
147 method.setAccessible(true);
148 SHORTCUT_KEY_MASK = ((int) method.invoke(tk, new Object[0]));
149 } catch (Exception e)
154 if (SHORTCUT_KEY_MASK <= 0xF)
156 // shift this into the extended region (was Java 8)
157 SHORTCUT_KEY_MASK = SHORTCUT_KEY_MASK << 6;
162 * added to group mouse events into Windows and nonWindows (mac, unix, linux)
166 public static boolean isWin()
168 return (isWin == null
169 ? (isWin = (System.getProperty("os.name").indexOf("Win") >= 0))
175 * @return true if HTML5 JavaScript
177 public static boolean isJS()
183 * sorry folks - Macs really are different
185 * BH: disabled for SwingJS -- will need to check key-press issues
187 * @return true if we do things in a special way.
189 public static boolean isAMacAndNotJS()
191 return (isNoJSMac == null ? (isNoJSMac = !isJS && isMac()) : isNoJSMac);
195 * Check if we are on a Microsoft plaform...
197 * @return true if we have to cope with another platform variation
199 public static boolean isWindowsAndNotJS()
201 return (isNoJSWin == null ? (isNoJSWin = !isJS && isWin()) : isNoJSWin);
206 * @return true if we are running in non-interactive no UI mode
208 public static boolean isHeadless()
210 if (isHeadless == null)
212 isHeadless = "true".equals(System.getProperty("java.awt.headless"));
219 * @return nominal maximum command line length for this platform
221 public static int getMaxCommandLineLength()
223 // TODO: determine nominal limits for most platforms.
224 return 2046; // this is the max length for a windows NT system.
228 * Answers the input with every backslash replaced with a double backslash (an
229 * 'escaped' single backslash)
234 public static String escapeBackslashes(String s)
236 return s == null ? null : s.replace("\\", "\\\\");
240 * Answers true if the mouse event has Meta-down (Command key on Mac) or
241 * Ctrl-down (on other o/s). Note this answers _false_ if the Ctrl key is
242 * pressed instead of the Meta/Cmd key on Mac. To test for Ctrl-pressed on
243 * Mac, you can use e.isPopupTrigger().
248 public static boolean isControlDown(MouseEvent e)
250 return isControlDown(e, isMac());
254 * Overloaded version of method (to allow unit testing)
260 protected static boolean isControlDown(MouseEvent e, boolean aMac)
263 // System.out.println(e.isPopupTrigger()
264 // + " " + ((SHORTCUT_KEY_MASK & e.getModifiersEx()) != 0)
265 // + " " + e.isControlDown());
267 ? !e.isPopupTrigger()
268 && (SHORTCUT_KEY_MASK & e.getModifiersEx()) != 0
269 : e.isControlDown());
272 // BH: I don't know about that previous method. Here is what SwingJS uses.
273 // Notice the distinction in mouse events. (BUTTON3_MASK == META)
275 // private static boolean isPopupTrigger(int id, int mods, boolean isWin) {
276 // boolean rt = ((mods & InputEvent.BUTTON3_MASK) != 0);
278 // if (id != MouseEvent.MOUSE_RELEASED)
281 //// // Oddly, Windows returns InputEvent.META_DOWN_MASK on release, though
282 //// // BUTTON3_DOWN_MASK for pressed. So here we just accept both.
284 //// actually, we can use XXX_MASK, not XXX_DOWN_MASK and avoid this issue,
286 //// J2S adds the appropriate extended (0x3FC0) and simple (0x3F) modifiers.
290 // // mac, linux, unix
291 // if (id != MouseEvent.MOUSE_PRESSED)
293 // boolean lt = ((mods & InputEvent.BUTTON1_MASK) != 0);
294 // boolean ctrl = ((mods & InputEvent.CTRL_MASK) != 0);
295 // return rt || (ctrl && lt);
301 * Windows (not Mac, Linux, or Unix) and right button to test for the
302 * right-mouse pressed event in Windows that would have opened a menu or a
308 public static boolean isWinRightButton(MouseEvent e)
310 // was !isAMac(), but that is true also for Linux and Unix and JS,
312 return isWin() && SwingUtilities.isRightMouseButton(e);
316 * Windows (not Mac, Linux, or Unix) and middle button -- for mouse wheeling
317 * without pressing the button.
322 public static boolean isWinMiddleButton(MouseEvent e)
324 // was !isAMac(), but that is true also for Linux and Unix and JS
325 return isWin() && SwingUtilities.isMiddleMouseButton(e);
328 public static boolean allowMnemonics()
333 public final static int TIME_RESET = 0;
335 public final static int TIME_MARK = 1;
337 public static final int TIME_SET = 2;
339 public static final int TIME_GET = 3;
341 public static long time, mark, set, duration;
346 * Platform.timeCheck(null, Platform.TIME_MARK);
350 * Platform.timeCheck("some message", Platform.TIME_MARK);
352 * reset...[set/mark]n...get
357 public static void timeCheck(String msg, int mode)
359 long t = System.currentTimeMillis();
367 System.err.println("Platform: timer reset\t\t\t" + msg);
373 // total time between set/mark points
374 duration += (t - set);
384 System.err.println("Platform: timer mark\t" + ((t - time) / 1000f)
385 + "\t" + ((t - mark) / 1000f) + "\t" + msg);
396 System.err.println("Platform: timer dur\t" + ((t - time) / 1000f)
397 + "\t" + ((duration) / 1000f) + "\t" + msg);
404 public static void cacheFileData(String path, Object data)
406 if (isJS && data != null)
408 jsutil.cachePathData(path, data);
412 public static void cacheFileData(File file)
416 byte[] data = Platform.getFileBytes(file);
420 cacheFileData(file.toString(), data);
426 public static byte[] getFileBytes(File f)
428 return (isJS && f != null ? jsutil.getBytes(f) : null);
431 public static byte[] getFileAsBytes(String fileStr)
433 if (isJS && fileStr != null)
435 byte[] bytes = (byte[]) jsutil.getFile(fileStr, false);
436 cacheFileData(fileStr, bytes);
442 public static String getFileAsString(String url)
444 if (isJS && url != null)
446 String ret = (String) jsutil.getFile(url, true);
447 cacheFileData(url, ret);
453 public static boolean setFileBytes(File f, String urlstring)
455 if (isJS && f != null && urlstring != null)
457 @SuppressWarnings("unused")
458 byte[] bytes = getFileAsBytes(urlstring);
459 jsutil.setFileBytes(f, bytes);
465 public static void addJ2SBinaryType(String ext)
469 jsutil.addBinaryFileType(ext);
474 * Encode the URI using JavaScript encodeURIComponent
477 * @return encoded value
479 public static String encodeURI(String value)
482 * @j2sNative value = encodeURIComponent(value);
488 * Open the URL using a simple window call if this is JavaScript
491 * @return true if window has been opened
493 public static boolean openURL(String url) throws IOException
508 public static String getUniqueAppletID()
510 return (isJS ? (String) jsutil.getAppletAttribute("_uniqueId") : null);
514 * Read the Info block for this applet.
519 * @return unique id for this applet
521 public static void readInfoProperties(String prefix, Properties p)
525 String id = getUniqueAppletID();
529 @SuppressWarnings("unused")
530 Object info = jsutil.getAppletAttribute("__Info");
532 * @j2sNative for (key in info) { value = info[key];
535 if (key.indexOf(prefix) == 0)
537 System.out.println("Platform id=" + id + " reading Info." + key
549 public static void setAjaxJSON(URL url)
557 public static Object parseJSON(InputStream response)
558 throws IOException, ParseException
562 return JSON.parse(response);
565 BufferedReader br = null;
568 br = new BufferedReader(new InputStreamReader(response, "UTF-8"));
569 return new JSONParser().parse(br);
577 } catch (IOException e)
585 public static Object parseJSON(String json) throws ParseException
587 return (isJS() ? JSON.parse(json) : new JSONParser().parse(json));
590 public static Object parseJSON(Reader r)
591 throws IOException, ParseException
600 return new JSONParser().parse(r);
602 // Using a file reader is not currently supported in SwingJS JavaScript
604 if (r instanceof FileReader)
606 throw new IOException(
607 "StringJS does not support FileReader parsing for JSON -- but it could...");
609 return JSON.parse(r);
613 * Dump the input stream to an output file.
617 * @throws IOException
618 * if the file cannot be created or there is a problem reading the
621 public static void streamToFile(InputStream is, File outFile)
627 jsutil.setFileBytes(outFile, is);
631 FileOutputStream fio = new FileOutputStream(outFile);
634 byte[] bb = new byte[32 * 1024];
636 while ((l = is.read(bb)) > 0)
647 * Add a known domain that implements access-control-allow-origin:*
649 * These should be reviewed periodically.
652 * for a service that is not allowing ajax
654 * @author hansonr@stolaf.edu
657 public static void addJ2SDirectDatabaseCall(String domain)
662 jsutil.addDirectDatabaseCall(domain);
665 "Platform adding known access-control-allow-origin * for domain "
672 * Allow for URL-line command arguments. Untested.
675 public static void getURLCommandArguments()
681 * Retrieve the first query field as command arguments to Jalview. Include
682 * only if prior to "?j2s" or "&j2s" or "#". Assign the applet's
683 * __Info.args element to this value.
686 * decodeURI((document.location.href.replace("&","?").split("?j2s")[0]
687 * + "?").split("?")[1].split("#")[0]); a &&
688 * (J2S.thisApplet.__Info.args = a.split(" "));
690 * System.out.println("URL arguments: " + a);
692 } catch (Throwable t)
698 * A (case sensitive) file path comparator that ignores the difference between
705 public static boolean pathEquals(String path1, String path2)
709 return path2 == null;
715 String p1 = path1.replace('\\', '/');
716 String p2 = path2.replace('\\', '/');
717 return p1.equals(p2);
720 ///////////// JAL-3253 Applet additions //////////////
723 * Retrieve the object's embedded size from a div's style on a page if
724 * embedded in SwingJS.
727 * JFrame or JInternalFrame
728 * @param defaultWidth
729 * use -1 to return null (no default size)
730 * @param defaultHeight
731 * @return the embedded dimensions or null (no default size or not embedded)
733 public static Dimension getDimIfEmbedded(Component frame,
734 int defaultWidth, int defaultHeight)
739 d = (Dimension) getEmbeddedAttribute(frame, "dim");
741 return (d == null && defaultWidth >= 0
742 ? new Dimension(defaultWidth, defaultHeight)
747 public static Regex newRegex(String regex)
749 return newRegex(regex, null);
752 public static Regex newRegex(String searchString, String replaceString)
755 return (replaceString == null ? new Regex(searchString)
756 : new Regex(searchString, replaceString));
759 public static Regex newRegexPerl(String code)
762 return Regex.perlCode(code);
766 * Initialize Java debug logging. A representative sample -- adapt as desired.
768 public static void startJavaLogging()
774 logClass("java.awt.EventDispatchThread", "java.awt.EventQueue",
775 "java.awt.Component", "java.awt.focus.Component",
776 "java.awt.event.Component",
777 "java.awt.focus.DefaultKeyboardFocusManager");
782 * Initiate Java logging for a given class. Only for Java, not JavaScript;
783 * Allows debugging of complex event processing.
787 public static void logClass(String... classNames)
795 Logger rootLogger = Logger.getLogger("");
796 rootLogger.setLevel(Level.ALL);
797 ConsoleHandler consoleHandler = new ConsoleHandler();
798 consoleHandler.setLevel(Level.ALL);
799 for (int i = classNames.length; --i >= 0;)
801 Logger logger = Logger.getLogger(classNames[i]);
802 logger.setLevel(Level.ALL);
803 logger.addHandler(consoleHandler);
809 * load a resource -- probably a core file -- if and only if a particular
810 * class has not been instantialized. We use a String here because if we used
811 * a .class object, that reference itself would simply load the class, and we
812 * want the core package to include that as well.
814 * @param resourcePath
817 public static void loadStaticResource(String resourcePath,
822 jsutil.loadResourceIfClassUnknown(resourcePath, className);
826 public static void ensureRegex()
830 loadStaticResource("core/core_stevesoft.z.js",
831 "com.stevesoft.pat.Regex");
836 * Set the "app" property of the HTML5 applet object, for example,
837 * "testApplet.app", to point to the Jalview instance. This will be the object
838 * that page developers use that is similar to the original Java applet object
839 * that was accessed via LiveConnect.
843 public static void setAppClass(Object j)
847 jsutil.setAppClass(j);
853 * If this frame is embedded in a web page, return a known type.
856 * a JFrame or JInternalFrame
858 * "name", "node", "init", "dim", or any DOM attribute, such as "id"
859 * @return null if frame is not embedded.
861 public static Object getEmbeddedAttribute(Component frame, String type)
863 return (isJS ? jsutil.getEmbeddedAttribute(frame, type) : null);
866 public static void stackTrace()
870 throw new NullPointerException();
871 } catch (Exception e)
878 public static URL getDocumentBase()
880 return (isJS ? jsutil.getDocumentBase() : null);
883 public static URL getCodeBase()
885 return (isJS ? jsutil.getCodeBase() : null);
888 public static String getUserPath(String subpath)
890 char sep = File.separatorChar;
891 return System.getProperty("user.home") + sep
892 + subpath.replace('/', sep);
896 * This method enables checking if a cached file has exceeded a certain
902 * the threshold in days
905 public static boolean isFileOlderThanThreshold(File file, int noOfDays)
909 // not meaningful in SwingJS -- this is a session-specific temp file. It
910 // doesn't have a timestamp.
913 Path filePath = file.toPath();
914 BasicFileAttributes attr;
918 attr = Files.readAttributes(filePath, BasicFileAttributes.class);
919 diffInDays = (int) ((new Date().getTime()
920 - attr.lastModifiedTime().toMillis())
921 / (1000 * 60 * 60 * 24));
922 // System.out.println("Diff in days : " + diffInDays);
923 } catch (IOException e)
927 return noOfDays <= diffInDays;
931 * Get the leading integer part of a string that begins with an integer.
934 * - the string input to process
936 * - value returned if unsuccessful
939 public static int getLeadingIntegerValue(String input, int failValue)
947 int val = /** @j2sNative 1 ? parseInt(input) : */
949 return (val == val + 0 ? val : failValue);
951 // JavaScript does not support Regex ? lookahead
952 String[] parts = input.split("(?=\\D)(?<=\\d)");
953 if (parts != null && parts.length > 0 && parts[0].matches("[0-9]+"))
955 return Integer.valueOf(parts[0]);
960 public static Map<String, Object> getAppletInfoAsMap()
962 return (isJS ? jsutil.getAppletInfoAsMap() : null);
966 * Get the SwingJS applet ID and combine that with the frameType
969 * "alignment", "desktop", etc., or null
972 public static String getAppID(String frameType)
975 String id = Jalview.getInstance().j2sAppletID;
978 Jalview.getInstance().j2sAppletID = id = (isJS
979 ? (String) jsutil.getAppletAttribute("_id")
982 return id + (frameType == null ? "" : "-" + frameType);
986 * Option to avoid unnecessary seeking of nonexistent resources in JavaScript.
987 * Works in Java as well.
992 public static Locale getLocaleOrNone(Locale loc)
994 return (isJS && loc.getLanguage() == "en" ? new Locale("") : loc);
998 * From UrlDownloadClient; trivial in JavaScript; painful in Java.
1002 * @throws IOException
1004 public static void download(String urlstring, String outfile)
1008 try (InputStream is = new URL(urlstring).openStream())
1011 { // so much easier!
1012 streamToFile(is, new File(outfile));
1015 temp = Files.createTempFile(".jalview_", ".tmp");
1016 try (FileOutputStream fos = new FileOutputStream(temp.toString());
1017 ReadableByteChannel rbc = Channels.newChannel(is))
1019 fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
1020 // copy tempfile to outfile once our download completes
1021 // incase something goes wrong
1022 Files.copy(temp, Paths.get(outfile),
1023 StandardCopyOption.REPLACE_EXISTING);
1025 } catch (IOException e)
1034 Files.deleteIfExists(temp);
1036 } catch (IOException e)
1038 System.out.println("Exception while deleting download temp file: "