X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=src%2Forg%2Fxwt%2FPlatform.java;h=6e76b3f4e5f7509552b8b55afbd3fcd3901467c7;hb=de378041d5ca2aca1a2b5a31ef15ae90a86c977f;hp=f958dd27ad9958c846b9e35e1073ef1b27d5c688;hpb=275ac40931457f4ca7473e7725443605d7a4ef1f;p=org.ibex.core.git
diff --git a/src/org/xwt/Platform.java b/src/org/xwt/Platform.java
index f958dd2..6e76b3f 100644
--- a/src/org/xwt/Platform.java
+++ b/src/org/xwt/Platform.java
@@ -1,10 +1,11 @@
-// Copyright 2002 Adam Megacz, see the COPYING file for licensing [GPL]
+// Copyright 2004 Adam Megacz, see the COPYING file for licensing [GPL]
package org.xwt;
import java.lang.reflect.*;
import java.net.*;
import java.io.*;
import java.util.*;
+import org.xwt.js.*;
import org.xwt.util.*;
/**
@@ -17,307 +18,270 @@ import org.xwt.util.*;
* it in the org.xwt.plat package, and add code to this file's static
* block to detect the new platform.
*/
-public class Platform {
+public abstract class Platform {
- // Static Data /////////////////////////////////////////////////////////////////////////////////////
-
- /** set to true during the delivery of a KeyPressed:C-v/A-v or Press3; it is safe to use a 'global' here,
- * since message delivery is single-threaded and non-preemptable
- */
- static boolean clipboardReadEnabled = false;
+ public Platform() { platform = this; }
- /** The appropriate Platform object for this JVM */
- static Platform platform = null;
+ // Static Data /////////////////////////////////////////////////////////////////////////////////////
+ static boolean clipboardReadEnabled = false; ///< true iff inside a C-v/A-v/Press3 trap handler
+ static Platform platform = null; ///< The appropriate Platform object for this JVM
+ static boolean alreadyDetectedProxy = false; ///< true if proxy autodetection has already been run
+ static org.xwt.HTTP.Proxy cachedProxyInfo = null; ///< the result of proxy autodetection
+ public static String build = "unknown"; ///< the current build
// VM Detection Logic /////////////////////////////////////////////////////////////////////
- /** do-nothing method that forces <clinit> to run */
- public static void forceLoad() { }
-
// If you create a new subclass of Platform, you should add logic
// here to detect it. Do not reference your class directly -- use
// reflection.
- static {
- System.out.println("Detecting JVM...");
+ public static void forceLoad() {
+ System.err.print("Detecting JVM...");
try {
String vendor = System.getProperty("java.vendor", "");
String version = System.getProperty("java.version", "");
String os_name = System.getProperty("os.name", "");
+ String os_version = System.getProperty("os.version", "");
String platform_class = null;
- if (os_name.startsWith("Mac OS X")) platform_class = "MacOSX";
- else if (vendor.startsWith("Free Software Foundation")) platform_class = "Win32";
- else if (version.startsWith("1.1") && vendor.startsWith("Netscape")) platform_class = "Netscape";
- else if (version.startsWith("1.1") && vendor.startsWith("Microsoft")) platform_class = "Microsoft";
- else if (!version.startsWith("1.0") && !version.startsWith("1.1")) platform_class = "Java2";
-
- if (platform_class != null) {
- platform = (Platform)Class.forName("org.xwt.plat." + platform_class).newInstance();
- platform.init();
+ if (vendor.startsWith("Free Software Foundation")) {
+ if (os_name.startsWith("Window")) platform_class = "Win32";
+ else if (os_name.startsWith("Linux")) platform_class = "Linux";
+ else if (os_name.startsWith("SunOS")) platform_class = "Solaris";
+ else if (os_name.startsWith("Solaris")) platform_class = "Solaris";
+ else platform_class = "X11";
}
- if (Log.on) Log.log(Platform.class, "XWT VM detection: vendor = " + vendor);
- if (Log.on) Log.log(Platform.class, " version = " + version);
- if (Log.on) Log.log(Platform.class, " os = " + os_name);
+ else if (!version.startsWith("1.0") && !version.startsWith("1.1")) platform_class = "Java2";
if (platform_class == null) {
- if (Log.on) Log.log(Platform.class, "Unable to detect JVM");
- System.exit(-1);
+ Log.error(Platform.class, "Unable to detect JVM");
+ criticalAbort("Unable to detect JVM");
+ }
+
+ System.err.println(" " + os_name + " ==> org.xwt.plat." + platform_class);
+ try {
+ if (platform_class != null) Class.forName("org.xwt.plat." + platform_class).newInstance();
+ } catch (InstantiationException e) {
+ throw e.getCause();
}
- if (Log.on) Log.log(Platform.class, " platform = " + platform.getDescriptiveName());
- if (Log.on) Log.log(Platform.class, " class = " + platform.getClass().getName());
+ String term = Platform.getEnv("TERM");
+ Log.color = term != null && term.length() != 0 && !term.equals("cygwin");
+
+ try {
+ build = (String)Class.forName("org.xwt.Build").getField("build").get(null);
+ Log.diag(Platform.class, "XWT build: " + build);
+ } catch (ClassNotFoundException cnfe) {
+ Log.warn(Platform.class, "XWT build: unknown");
+ } catch (Exception e) {
+ Log.info(Platform.class, "exception while detecting build:");
+ Log.info(Platform.class, e);
+ }
- } catch (Exception e) {
- if (Log.on) Log.log(Platform.class, "Exception while trying to detect JVM");
- if (Log.on) Log.log(Platform.class, e);
- System.exit(-1);
+ Log.diag(Platform.class, "XWT VM detection: vendor = " + vendor);
+ Log.diag(Platform.class, " version = " + version);
+ Log.diag(Platform.class, " os = " + os_name + " [version " + os_version + "]");
+ Log.diag(Platform.class, " platform = " + platform.getDescriptiveName());
+ Log.diag(Platform.class, " class = " + platform.getClass().getName());
+ platform.postInit();
+
+ } catch (Throwable e) {
+ Log.error(Platform.class, "Exception while trying to detect JVM");
+ Log.error(Platform.class, e);
+ criticalAbort("Unable to detect JVM");
}
}
- // Methods to be Overridden ////////////////////////////////////////////////////////////////////
-
- /** a string describing the VM */
- protected String getDescriptiveName() { return "Generic Java 1.1 VM"; }
-
- /** this initializes the platform; code in here can invoke methods on Platform since Platform.platform has already been set */
- protected void init() { }
+ // Methods to be Overridden ///////////////////////////////////////////////////////////////////
- /** creates and returns a doublebuffer 'belonging' to owner; we need to associate DoubleBuffers to surfaces
- * due to AWT 1.1 requirements (definately for Navigator, possibly also for MSJVM).
- */
- protected DoubleBuffer _createDoubleBuffer(int w, int h, Surface owner) { return null; }
-
- /** creates and returns a new surface */
protected Surface _createSurface(Box b, boolean framed) { return null; }
+ protected Picture _createPicture(JS r) { return null; }
+ protected PixelBuffer _createPixelBuffer(int w, int h, Surface owner) { return null; }
+ protected Font.Glyph _createGlyph(org.xwt.Font f, char c) { return new DefaultGlyph(f, c); }
- /** creates a socket object */
- protected Socket _getSocket(String host, int port, boolean ssl) throws IOException {
- return ssl ? new TinySSL(host, port) : new Socket(java.net.InetAddress.getByName(host), port);
+ public static PixelBuffer createPixelBuffer(int w, int h, Surface s) { return platform._createPixelBuffer(w, h, s); }
+ public static Picture createPicture(JS r) { return platform._createPicture(r); }
+ public static Font.Glyph createGlyph(org.xwt.Font f, char c) { return platform._createGlyph(f, c); }
+ public static Surface createSurface(Box b, boolean framed, boolean refreshable) {
+ Surface ret = platform._createSurface(b, framed);
+ ret.setInvisible(false);
+ if (refreshable) {
+ Surface.allSurfaces.addElement(ret);
+ ret.dirty(0, 0, b.width, b.height);
+ ret.Refresh();
+ }
+ try {
+ if (b.get("titlebar") != null) ret.setTitleBarText((String)b.get("titlebar"));
+ } catch (JSExn e) {
+ Log.warn(Platform.class, e);
+ }
+ return ret;
}
- /** creates and returns a picture */
- protected Picture _createPicture(int[] b, int w, int h) { return null; }
-
- /** should return true if it is safe to supress full-surface dirties immediately after a window resize */
- protected boolean _supressDirtyOnResize() { return true; }
+ /** a string describing the VM */
+ protected String getDescriptiveName() { return "Generic Java 1.1 VM"; }
+
+ /** invoked after initialization messages have been printed; useful for additional platform detection log messages */
+ protected void postInit() { }
/** the human-readable name of the key mapped to XWT's 'alt' key */
+ public static String altKeyName() { return platform._altKeyName(); }
protected String _altKeyName() { return "alt"; }
- /** opens a connection to the resource identified by URL u, and returns an InputStream */
- protected InputStream _urlToInputStream(URL u) throws IOException { return u.openStream(); }
-
/** returns the contents of the clipboard */
+ public static Object getClipBoard() { return clipboardReadEnabled ? platform._getClipBoard() : null; }
protected String _getClipBoard() { return null; }
/** sets the contents of the clipboard */
+ public static void setClipBoard(String s) { platform._setClipBoard(s); }
protected void _setClipBoard(String s) { }
/** returns the width of the screen, in pixels */
+ public static int getScreenWidth() { return platform._getScreenWidth(); }
protected int _getScreenWidth() { return 640; }
/** returns the height of the screen, in pixels */
+ public static int getScreenHeight() { return platform._getScreenHeight(); }
protected int _getScreenHeight() { return 480; }
- /** returns the width of a string in a platform-specific font */
- protected int _stringWidth(String font, String text) { return 10 * text.length(); }
-
- /** returns the maximum ascent of all glyphs in a given platform-specific font */
- protected int _getMaxAscent(String font) { return 10; }
-
- /** returns the maximum descent of all glyphs in a given platform-specific font */
- protected int _getMaxDescent(String font) { return 2; }
-
- /** returns a list of all platform-specific fonts available */
- protected String[] _listFonts() { return new String[] { }; }
-
- /** returns the maximum number of threads that the XWT engine can create without adversely affecting the host OS */
- protected int _maxThreads() { return 25; }
-
- /** creates a weak reference */
- protected org.xwt.Weak _getWeak(final Object o) {
- return new org.xwt.Weak() {
- public Object get() { return o; }
- };
- }
-
- /** quits XWT */
- protected void _exit() { System.exit(0); }
-
/** used to notify the user of very serious failures; usually used when logging is not working or unavailable */
protected void _criticalAbort(String message) { System.exit(-1); }
-
- /** used to notify the user of very serious failures; usually used when logging is not working or unavailable */
- protected String _getDefaultFont() { return "sansserif10"; }
-
- protected boolean _needsAutoClick() { return false; }
-
- protected void _newBrowserWindow(String url) {
- if (Log.on) Log.log(this, "Platform " + platform.getClass().getName() + " cannot open browser windows");
- return;
+ public static void criticalAbort(String message) {
+ Log.info(Platform.class, "Critical Abort:");
+ Log.info(Platform.class, message);
+ platform._criticalAbort(message);
}
- // Static methods -- thunk to the instance /////////////////////////////////////////////////////////////////////////
-
- /** if true, org.xwt.Surface should generate Click messages automatically when a Release happens after a Press and the mouse has not moved much */
+ /** if true, org.xwt.Surface will generate a Click automatically after a press and a release */
public static boolean needsAutoClick() { return platform._needsAutoClick(); }
+ protected boolean _needsAutoClick() { return false; }
- /** should return true if it is safe to supress full-surface dirties immediately after a window resize */
- public static String getDefaultFont() { return platform._getDefaultFont(); }
-
- /** should return true if it is safe to supress full-surface dirties immediately after a window resize */
- public static boolean supressDirtyOnResize() { return platform._supressDirtyOnResize(); }
-
- /** returns the width of a string in a platform-specific font */
- public static int stringWidth(String font, String text) { return platform._stringWidth(font, text); }
-
- /** returns the maximum ascent of all glyphs in a given platform-specific font */
- public static int getMaxAscent(String font) { return platform._getMaxAscent(font); }
-
- /** returns the maximum descent of all glyphs in a given platform-specific font. Three pixel minimum ensures space for underline. */
- public static int getMaxDescent(String font) { return Math.max(3, platform._getMaxDescent(font)); }
-
- /** returns the maximum number of threads that the XWT engine can create without adversely affecting the host OS */
- public static int maxThreads() { return platform._maxThreads(); }
-
- /** returns a list of all platform-specific fonts available */
- public static String[] listFonts() { return platform._listFonts(); }
-
- /** creates a weak reference */
- public static org.xwt.Weak getWeak(Object o) { return platform._getWeak(o); }
-
- /** opens a connection to the resource identified by URL u, and returns an InputStream */
- public static InputStream urlToInputStream(URL u) throws IOException { return platform._urlToInputStream(u); }
-
- /** returns the contents of the clipboard */
- public static Object getClipBoard() { return clipboardReadEnabled ? platform._getClipBoard() : null; }
-
- /** sets the contents of the clipboard */
- public static void setClipBoard(String s) { platform._setClipBoard(s); }
-
- /** creates a socket object, with or without ssl encryption */
- public static Socket getSocket(String host, int port, boolean ssl) throws IOException { return platform._getSocket(host, port, ssl); }
-
- /** returns the width of the screen, in pixels */
- public static int getScreenWidth() { return platform._getScreenWidth(); }
-
- /** returns the height of the screen, in pixels */
- public static int getScreenHeight() { return platform._getScreenHeight(); }
-
- /** creates and returns a doublebuffer 'belonging' to owner */
- public static DoubleBuffer createDoubleBuffer(int w, int h, Surface s) { return platform._createDoubleBuffer(w, h, s); }
+ /** if true, org.xwt.Surface will generate a DoubleClick automatically after recieving two clicks in a short period of time */
+ public static boolean needsAutoDoubleClick() { return platform._needsAutoDoubleClick(); }
+ protected boolean _needsAutoDoubleClick() { return false; }
- /** creates and returns a picture */
- public static Picture createPicture(int[] data, int w, int h) { return platform._createPicture(data, w, h); }
+ /** returns true iff the platform has a case-sensitive filesystem */
+ public static boolean isCaseSensitive() { return platform._isCaseSensitive(); }
+ protected boolean _isCaseSensitive() { return true; }
- /** creates and returns a picture */
- public static Picture createPicture(ImageDecoder i) { return platform._createPicture(i.getData(), i.getWidth(), i.getHeight()); }
+ /** returns an InputStream to the builtin xwar */
+ public static InputStream getBuiltinInputStream() { return platform._getBuiltinInputStream(); }
+ protected InputStream _getBuiltinInputStream() {return getClass().getClassLoader().getResourceAsStream("org/xwt/builtin.jar");}
- /** creates and returns a picture */
- public static void newBrowserWindow(String url) {
- if (!(url.startsWith("https://") || url.startsWith("http://") || url.startsWith("ftp://") || url.startsWith("mailto:"))) {
- if (Log.on) Log.log(Platform.class, "xwt.newBrowserWindow() only supports http and https urls");
- return;
+ /** returns the value of the environment variable key, or null if no such key exists */
+ public static String getEnv(String key) { return platform._getEnv(key); }
+ protected String _getEnv(String key) {
+ try {
+ String os = System.getProperty("os.name").toLowerCase();
+ Process p;
+ if (os.indexOf("windows 9") != -1 || os.indexOf("windows me") != -1) {
+ // hack -- jdk1.2/1.3 on Win32 pop open an ugly DOS box; 1.4 does not
+ if (platform.getClass().getName().endsWith("Java12")) return null;
+ p = Runtime.getRuntime().exec("command.com /c set");
+ } else if (os.indexOf("windows") > -1) {
+ // hack -- jdk1.2/1.3 on Win32 pop open an ugly DOS box; 1.4 does not
+ if (platform.getClass().getName().endsWith("Java12")) return null;
+ p = Runtime.getRuntime().exec("cmd.exe /c set");
+ } else {
+ p = Runtime.getRuntime().exec("env");
+ }
+ BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
+ String s;
+ while ((s = br.readLine()) != null)
+ if (s.startsWith(key + "="))
+ return s.substring(key.length() + 1);
+ } catch (Exception e) {
+ Log.info(this, "Exception while reading from environment:");
+ Log.info(this, e);
}
- if (Log.on) Log.log(Platform.class, "newBrowserWindow, url = " + url);
- platform._newBrowserWindow(url);
+ return null;
}
- /** quits XWT */
- public static void exit() {
- Log.log(Platform.class, "exiting via Platform.exit()");
- platform._exit();
- }
-
- /** the human-readable name of the key mapped to XWT's 'alt' key */
- public static String altKeyName() { return platform._altKeyName(); }
+ /** convert a JPEG into an Image */
+ public static synchronized void decodeJPEG(InputStream is, Picture p) { platform._decodeJPEG(is, p); }
+ protected abstract void _decodeJPEG(InputStream is, Picture p);
- /** used to notify the user of very serious failures; usually used when logging is not working or unavailable */
- public static void criticalAbort(String message) {
- if (Log.on) Log.log(Platform.class, "Critical Abort:");
- if (Log.on) Log.log(Platform.class, message);
- platform._criticalAbort(message);
+ /** displays a platform-specific "open file" dialog and returns the chosen filename, or null if the user hit cancel */
+ protected String _fileDialog(String suggestedFileName, boolean write) { return null; }
+ public static String fileDialog(String suggestedFileName, boolean write) throws org.xwt.js.JSExn {
+ return platform._fileDialog(suggestedFileName, write);
}
- /** this method invokes the platform _createSurface() method and then enforces a few post-call invariants */
- public static Surface createSurface(Box b, boolean framed, boolean refreshable) {
- Surface ret = platform._createSurface(b, framed);
- ret.setInvisible(b.invisible);
- b.set(Box.size, 0, ret.width);
- b.set(Box.size, 1, ret.height);
-
- Object titlebar = b.get("titlebar", null, true);
- if (titlebar != null) ret.setTitleBarText(titlebar.toString());
-
- Object icon = b.get("icon", null, true);
- if (icon != null && !"".equals(icon)) {
- Picture pic = Box.getPicture(icon.toString());
- if (pic != null) ret.setIcon(pic);
- else if (Log.on) Log.log(Platform.class, "unable to load icon " + icon);
- }
-
- if (refreshable) {
- Surface.refreshableSurfaceWasCreated = true;
- Surface.allSurfaces.addElement(ret);
- ret.dirty(0, 0, ret.width, ret.height);
- ret.Refresh();
+ /** default implementation is Eric Albert's BrowserLauncher.java */
+ protected void _newBrowserWindow(String url) {
+ try {
+ Class c = Class.forName("edu.stanford.ejalbert.BrowserLauncher");
+ Method m = c.getMethod("openURL", new Class[] { String.class });
+ m.invoke(null, new String[] { url });
+ } catch (Exception e) {
+ Log.warn(this, "exception trying to open a browser window");
+ Log.warn(this, e);
}
- return ret;
}
- // Helpful font parsing stuff //////////////////////////////////////////////////////
-
- public static class ParsedFont {
- public ParsedFont() { }
- public ParsedFont(String s) { parse(s); }
- public int size = 10;
- public String name = "";
-
- public boolean italic = false;
- public boolean bold = false;
- public boolean underline = false;
- public boolean dotted_underline = false;
-
- private static int stoi(Object o) {
- if (o == null) return 0;
- if (o instanceof Integer) return ((Integer)o).intValue();
-
- String s = o.toString();
- try { return Integer.parseInt(s.indexOf('.') == -1 ? s : s.substring(0, s.indexOf('.'))); }
- catch (NumberFormatException e) { return 0; }
+ /** opens a new browser window */
+ public static void newBrowserWindow(String url) {
+ if (!(url.startsWith("https://") || url.startsWith("http://") || url.startsWith("ftp://") || url.startsWith("mailto:"))) {
+ Log.info(Platform.class, "xwt.newBrowserWindow() only supports http and https urls");
+ return;
}
+ // check the URL for well-formedness, as a defense against buffer overflow attacks
+ try {
+ String u = url;
+ if (u.startsWith("https")) u = "http" + u.substring(5);
+ new URL(u);
+ } catch (MalformedURLException e) {
+ Log.info(Platform.class, "URL " + url + " is not well-formed");
+ Log.info(Platform.class, e);
+ }
+ Log.info(Platform.class, "newBrowserWindow, url = " + url);
+ platform._newBrowserWindow(url);
+ }
- public void parse(String font) {
- int i = 0;
- while(i < font.length() && !Character.isDigit(font.charAt(i))) i++;
- name = font.substring(0, i).toLowerCase().replace('_', ' ');
- size = 10;
- italic = false;
- bold = false;
- underline = false;
- dotted_underline = false;
- if (i != font.length()) {
- int j = i;
- while (j < font.length() && Character.isDigit(font.charAt(j))) j++;
- if (i != j) size = stoi(font.substring(i, j));
- i = j;
- while(i < font.length()) {
- switch (font.charAt(i)) {
- case 'b': bold = true;
- case 'i': italic = true;
- case 'd': dotted_underline = true;
- case 'u': underline = true;
- }
- i++;
- }
+ /** detects proxy settings */
+ protected synchronized org.xwt.HTTP.Proxy _detectProxy() { return null; }
+ public static synchronized org.xwt.HTTP.Proxy detectProxy() {
+
+ if (cachedProxyInfo != null) return cachedProxyInfo;
+ if (alreadyDetectedProxy) return null;
+ alreadyDetectedProxy = true;
+
+ Log.info(Platform.class, "attempting environment-variable DNS proxy detection");
+ cachedProxyInfo = org.xwt.HTTP.Proxy.detectProxyViaManual();
+ if (cachedProxyInfo != null) return cachedProxyInfo;
+
+ Log.info(Platform.class, "attempting " + platform.getClass().getName() + " proxy detection");
+ cachedProxyInfo = platform._detectProxy();
+ if (cachedProxyInfo != null) return cachedProxyInfo;
+
+ return cachedProxyInfo;
+ }
+
+ /** returns a Scheduler instance; used to implement platform-specific schedulers */
+ protected Scheduler _getScheduler() { return new Scheduler(); }
+ public static Scheduler getScheduler() { return platform._getScheduler(); }
+
+ // FEATURE: be more efficient for many of the subclasses
+ public static class DefaultGlyph extends Font.Glyph {
+ private Picture p = null;
+ public DefaultGlyph(org.xwt.Font f, char c) { super(f, c); }
+ public Picture getPicture() {
+ if (p == null && isLoaded) {
+ Picture p = createPicture(null);
+ p.data = new int[data.length];
+ for(int i=0; i