+
+ /**
+ * Answers true if the mouse event has Meta-down (Command key on Mac) or
+ * Ctrl-down (on other o/s). Note this answers _false_ if the Ctrl key is
+ * pressed instead of the Meta/Cmd key on Mac. To test for Ctrl-pressed on
+ * Mac, you can use e.isPopupTrigger().
+ *
+ * @param e
+ * @return
+ */
+ public static boolean isControlDown(MouseEvent e)
+ {
+ return isControlDown(e, isMac());
+ }
+
+ /**
+ * Overloaded version of method (to allow unit testing)
+ *
+ * @param e
+ * @param aMac
+ * @return
+ */
+ protected static boolean isControlDown(MouseEvent e, boolean aMac)
+ {
+ if (!aMac)
+ {
+ return e.isControlDown();
+ }
+ // answer false for right mouse button
+ // shortcut key will be META for a Mac
+ return !e.isPopupTrigger()
+ && (Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()
+ & e.getModifiers()) != 0;
+ // could we use e.isMetaDown() here?
+ }
+
+ // BH: I don't know about that previous method. Here is what SwingJS uses.
+ // Notice the distinction in mouse events. (BUTTON3_MASK == META)
+ //
+ // private static boolean isPopupTrigger(int id, int mods, boolean isWin) {
+ // boolean rt = ((mods & InputEvent.BUTTON3_MASK) != 0);
+ // if (isWin) {
+ // if (id != MouseEvent.MOUSE_RELEASED)
+ // return false;
+ ////
+ //// // Oddly, Windows returns InputEvent.META_DOWN_MASK on release, though
+ //// // BUTTON3_DOWN_MASK for pressed. So here we just accept both.
+ ////
+ //// actually, we can use XXX_MASK, not XXX_DOWN_MASK and avoid this issue,
+ // because
+ //// J2S adds the appropriate extended (0x3FC0) and simple (0x3F) modifiers.
+ ////
+ // return rt;
+ // } else {
+ // // mac, linux, unix
+ // if (id != MouseEvent.MOUSE_PRESSED)
+ // return false;
+ // boolean lt = ((mods & InputEvent.BUTTON1_MASK) != 0);
+ // boolean ctrl = ((mods & InputEvent.CTRL_MASK) != 0);
+ // return rt || (ctrl && lt);
+ // }
+ // }
+ //
+
+ /**
+ * Windows (not Mac, Linux, or Unix) and right button to test for the
+ * right-mouse pressed event in Windows that would have opened a menu or a
+ * Mac.
+ *
+ * @param e
+ * @return
+ */
+ public static boolean isWinRightButton(MouseEvent e)
+ {
+ // was !isAMac(), but that is true also for Linux and Unix and JS,
+
+ return isWin() && SwingUtilities.isRightMouseButton(e);
+ }
+
+ /**
+ * Windows (not Mac, Linux, or Unix) and middle button -- for mouse wheeling
+ * without pressing the button.
+ *
+ * @param e
+ * @return
+ */
+ public static boolean isWinMiddleButton(MouseEvent e)
+ {
+ // was !isAMac(), but that is true also for Linux and Unix and JS
+ return isWin() && SwingUtilities.isMiddleMouseButton(e);
+ }
+
+ public static boolean allowMnemonics()
+ {
+ return !isMac();
+ }
+
+ public final static int TIME_RESET = 0;
+
+ public final static int TIME_MARK = 1;
+
+ public static final int TIME_SET = 2;
+
+ public static final int TIME_GET = 3;
+
+ public static long time, mark, set, duration;
+
+ public static void timeCheck(String msg, int mode)
+ {
+ long t = System.currentTimeMillis();
+ switch (mode)
+ {
+ case TIME_RESET:
+ time = mark = t;
+ if (msg != null)
+ {
+ System.err.println("Platform: timer reset\t\t\t" + msg);
+ }
+ break;
+ case TIME_MARK:
+ if (set > 0)
+ {
+ duration += (t - set);
+ }
+ else
+ {
+ if (time == 0)
+ {
+ time = mark = t;
+ }
+ if (msg != null)
+ {
+ System.err.println("Platform: timer mark\t" + ((t - time) / 1000f)
+ + "\t" + ((t - mark) / 1000f) + "\t" + msg);
+ }
+ mark = t;
+ }
+ break;
+ case TIME_SET:
+ set = t;
+ break;
+ case TIME_GET:
+ if (msg != null)
+ {
+ System.err.println("Platform: timer dur\t" + ((t - time) / 1000f)
+ + "\t" + ((duration) / 1000f) + "\t" + msg);
+ }
+ set = 0;
+ break;
+ }
+ }
+
+ public static void cacheFileData(String path, Object data)
+ {
+ if (!isJS() || data == null)
+ {
+ return;
+ }
+ /**
+ * @j2sNative
+ *
+ * swingjs.JSUtil.cacheFileData$S$O(path, data);
+ *
+ */
+ }
+
+ public static void cacheFileData(File file)
+ {
+ byte[] data;
+ if (!isJS() || (data = Platform.getFileBytes(file)) == null)
+ {
+ return;
+ }
+ cacheFileData(file.toString(), data);
+ }
+
+ public static byte[] getFileBytes(File f)
+ {
+ return /** @j2sNative f && f._bytes || */
+ null;
+ }
+
+ public static byte[] getFileAsBytes(String fileStr)
+ {
+ byte[] bytes = null;
+ // BH 2018 hack for no support for access-origin
+ /**
+ * @j2sNative bytes = swingjs.JSUtil.getFileAsBytes$O(fileStr)
+ */
+ cacheFileData(fileStr, bytes);
+ return bytes;
+ }
+
+ @SuppressWarnings("unused")
+ public static String getFileAsString(String url)
+ {
+ String ret = null;
+ /**
+ * @j2sNative
+ *
+ * ret = swingjs.JSUtil.getFileAsString$S(url);
+ *
+ *
+ */
+ cacheFileData(url, ret);
+ return ret;
+ }
+
+ public static boolean setFileBytes(File f, String urlstring)
+ {
+ if (!isJS())
+ {
+ return false;
+ }
+ @SuppressWarnings("unused")
+ byte[] bytes = getFileAsBytes(urlstring);
+ /**
+ * @j2sNative f._bytes = bytes;
+ */
+ return true;
+ }
+
+ public static void addJ2SBinaryType(String ext)
+ {
+ /**
+ * @j2sNative
+ *
+ * J2S._binaryTypes.push("." + ext + "?");
+ *
+ */
+ }
+
+ /**
+ * Encode the URI using JavaScript encodeURIComponent
+ *
+ * @param value
+ * @return encoded value
+ */
+ public static String encodeURI(String value)
+ {
+ /**
+ * @j2sNative value = encodeURIComponent(value);
+ */
+ return value;
+ }
+
+ /**
+ * Open the URL using a simple window call if this is JavaScript
+ *
+ * @param url
+ * @return true if window has been opened
+ */
+ public static boolean openURL(String url)
+ {
+ if (!isJS())
+ {
+ return false;
+ }
+ /**
+ * @j2sNative
+ *
+ *
+ * window.open(url);
+ */
+ return true;
+ }
+
+ public static String getUniqueAppletID()
+ {
+ @SuppressWarnings("unused")
+ ThreadGroup g = Thread.currentThread().getThreadGroup();
+ /**
+ * @j2sNative return g.html5Applet._uniqueId;
+ *
+ */
+ return null;
+
+ }
+
+ /**
+ * Read the Info block for this applet.
+ *
+ * @param prefix
+ * "jalview_"
+ * @param p
+ * @return unique id for this applet
+ */
+ public static void readInfoProperties(String prefix, Properties p)
+ {
+ if (!isJS())
+ {
+ return;
+ }
+ @SuppressWarnings("unused")
+ ThreadGroup g = Thread.currentThread().getThreadGroup();
+ String id = getUniqueAppletID();
+ String key = "", value = "";
+ /**
+ * @j2sNative var info = g.html5Applet.__Info || {}; for (var key in info) {
+ * if (key.indexOf(prefix) == 0) { value = "" + info[key];
+ */
+
+ System.out.println(
+ "Platform id=" + id + " reading Info." + key + " = " + value);
+ p.put(id + "_" + key, value);
+
+ /**
+ * @j2sNative
+ *
+ *
+ * } }
+ */
+ }
+
+ public static void setAjaxJSON(URL url)
+ {
+ if (isJS())
+ {
+ JSON.setAjax(url);
+ }
+ }
+
+ public static Object parseJSON(InputStream response)
+ throws IOException, ParseException
+ {
+ if (isJS())
+ {
+ return JSON.parse(response);
+ }
+
+ BufferedReader br = null;
+ try
+ {
+ br = new BufferedReader(new InputStreamReader(response, "UTF-8"));
+ return new JSONParser().parse(br);
+ } finally
+ {
+ if (br != null)
+ {
+ try
+ {
+ br.close();
+ } catch (IOException e)
+ {
+ // ignore
+ }
+ }
+ }
+ }
+
+ public static Object parseJSON(String json) throws ParseException
+ {
+ return (isJS() ? JSON.parse(json)
+ : new JSONParser().parse(json));
+ }
+
+ public static Object parseJSON(Reader r)
+ throws IOException, ParseException
+ {
+ if (r == null)
+ {
+ return null;
+ }
+
+ if (!isJS())
+ {
+ return new JSONParser().parse(r);
+ }
+ // Using a file reader is not currently supported in SwingJS JavaScript
+
+ if (r instanceof FileReader)
+ {
+ throw new IOException(
+ "StringJS does not support FileReader parsing for JSON -- but it could...");
+ }
+ return JSON.parse(r);
+
+ }
+
+ /**
+ * Dump the input stream to an output file.
+ *
+ * @param is
+ * @param outFile
+ * @throws IOException
+ * if the file cannot be created or there is a problem reading the
+ * input stream.
+ */
+ public static void streamToFile(InputStream is, File outFile)
+ throws IOException
+ {
+ FileOutputStream fio = new FileOutputStream(outFile);
+ try
+ {
+ if (isJS()
+ && /**
+ * @j2sNative outFile.setBytes$O && outFile.setBytes$O(is) &&
+ */
+ true)
+ {
+ return;
+ }
+ byte[] bb = new byte[32 * 1024];
+ int l;
+ while ((l = is.read(bb)) > 0)
+ {
+ fio.write(bb, 0, l);
+ }
+ } finally
+ {
+ fio.close();
+ }
+ }
+
+ /**
+ * Add a known domain that implements access-control-allow-origin:*
+ *
+ * These should be reviewed periodically.
+ *
+ * @param domain
+ * for a service that is not allowing ajax
+ *
+ * @author hansonr@stolaf.edu
+ *
+ */
+ public static void addJ2SDirectDatabaseCall(String domain)
+ {
+
+ if (isJS())
+ {
+ System.out.println(
+ "Platform adding known access-control-allow-origin * for domain "
+ + domain);
+ /**
+ * @j2sNative
+ *
+ * J2S.addDirectDatabaseCall(domain);
+ */
+ }
+
+ }
+
+ public static void getURLCommandArguments()
+ {
+
+ /**
+ * Retrieve the first query field as command arguments to Jalview. Include
+ * only if prior to "?j2s" or "&j2s" or "#". Assign the applet's __Info.args
+ * element to this value.
+ *
+ * @j2sNative var a =
+ * decodeURI((document.location.href.replace("&","?").split("?j2s")[0]
+ * + "?").split("?")[1].split("#")[0]); a &&
+ * (J2S.thisApplet.__Info.args = a.split(" "));
+ */
+
+ }
+