/** Print the HTML tag. */
public static void printTag(PrintStream out, Hashtable atts) {
out.print("<applet");
String v = (String) atts.get("codebase");
if (v != null) {
out.print(" codebase=\"" + v + "\"");
}
v = (String) atts.get("code");
if (v == null) {
v = "applet.class";
}
out.print(" code=\"" + v + "\"");
v = (String) atts.get("width");
if (v == null) {
v = "150";
}
out.print(" width=" + v);
v = (String) atts.get("height");
if (v == null) {
v = "100";
}
out.print(" height=" + v);
v = (String) atts.get("name");
if (v != null) {
out.print(" name=\"" + v + "\"");
}
out.println(">");
// A very slow sorting algorithm
int len = atts.size();
String params[] = new String[len];
len = 0;
for (Enumeration e = atts.keys(); e.hasMoreElements(); ) {
String param = (String) e.nextElement();
int i = 0;
for (; i < len; i++) {
if (params[i].compareTo(param) >= 0) {
break;
}
}
System.arraycopy(params, i, params, i + 1, len - i);
params[i] = param;
len++;
}
for (int i = 0; i < len; i++) {
String param = params[i];
if (systemParam.get(param) == null) {
out.println("<param name=" + param + " value=\"" + atts.get(param) + "\">");
}
}
out.println("</applet>");
}
/** Scan tag */
public static Hashtable scanTag(Reader in) throws IOException {
Hashtable atts = new Hashtable();
skipSpace(in);
while (c >= 0 && c != '>') {
String att = scanIdentifier(in);
String val = "";
skipSpace(in);
if (c == '=') {
int quote = -1;
c = in.read();
skipSpace(in);
if ((c == '\'') || (c == '\"')) {
quote = c;
c = in.read();
}
StringBuffer buf = new StringBuffer();
while ((c > 0)
&& (((quote < 0)
&& (c != ' ')
&& (c != '\t')
&& (c != '\n')
&& (c != '\r')
&& (c != '>'))
|| ((quote >= 0) && (c != quote)))) {
buf.append((char) c);
c = in.read();
}
if (c == quote) {
c = in.read();
}
skipSpace(in);
val = buf.toString();
}
// statusMsgStream.println("PUT " + att + " = '" + val + "'");
if (!val.equals("")) {
atts.put(att.toLowerCase(j86.java.util.Locale.ENGLISH), val);
}
while (true) {
if ((c == '>')
|| (c < 0)
|| ((c >= 'a') && (c <= 'z'))
|| ((c >= 'A') && (c <= 'Z'))
|| ((c >= '0') && (c <= '9'))
|| (c == '_')) break;
c = in.read();
}
// skipSpace(in);
}
return atts;
}
static {
systemParam.put("codebase", "codebase");
systemParam.put("code", "code");
systemParam.put("alt", "alt");
systemParam.put("width", "width");
systemParam.put("height", "height");
systemParam.put("align", "align");
systemParam.put("vspace", "vspace");
systemParam.put("hspace", "hspace");
}
public static void parse(URL url, PrintStream statusMsgStream, AppletViewerFactory factory)
throws IOException {
// <OBJECT> <EMBED> tag flags
boolean isAppletTag = false;
boolean isObjectTag = false;
boolean isEmbedTag = false;
// warning messages
String requiresNameWarning = amh.getMessage("parse.warning.requiresname");
String paramOutsideWarning = amh.getMessage("parse.warning.paramoutside");
String appletRequiresCodeWarning = amh.getMessage("parse.warning.applet.requirescode");
String appletRequiresHeightWarning = amh.getMessage("parse.warning.applet.requiresheight");
String appletRequiresWidthWarning = amh.getMessage("parse.warning.applet.requireswidth");
String objectRequiresCodeWarning = amh.getMessage("parse.warning.object.requirescode");
String objectRequiresHeightWarning = amh.getMessage("parse.warning.object.requiresheight");
String objectRequiresWidthWarning = amh.getMessage("parse.warning.object.requireswidth");
String embedRequiresCodeWarning = amh.getMessage("parse.warning.embed.requirescode");
String embedRequiresHeightWarning = amh.getMessage("parse.warning.embed.requiresheight");
String embedRequiresWidthWarning = amh.getMessage("parse.warning.embed.requireswidth");
String appNotLongerSupportedWarning = amh.getMessage("parse.warning.appnotLongersupported");
j86.java.net.URLConnection conn = url.openConnection();
Reader in = makeReader(conn.getInputStream());
/* The original URL may have been redirected - this
* sets it to whatever URL/codebase we ended up getting
*/
url = conn.getURL();
int ydisp = 1;
Hashtable atts = null;
while (true) {
c = in.read();
if (c == -1) break;
if (c == '<') {
c = in.read();
if (c == '/') {
c = in.read();
String nm = scanIdentifier(in);
if (nm.equalsIgnoreCase("applet")
|| nm.equalsIgnoreCase("object")
|| nm.equalsIgnoreCase("embed")) {
// We can't test for a code tag until </OBJECT>
// because it is a parameter, not an attribute.
if (isObjectTag) {
if (atts.get("code") == null && atts.get("object") == null) {
statusMsgStream.println(objectRequiresCodeWarning);
atts = null;
}
}
if (atts != null) {
// XXX 5/18 In general this code just simply
// shouldn't be part of parsing. It's presence
// causes things to be a little too much of a
// hack.
factory.createAppletViewer(x, y, url, atts);
x += XDELTA;
y += YDELTA;
// make sure we don't go too far!
Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
if ((x > d.width - 300) || (y > d.height - 300)) {
x = 0;
y = 2 * ydisp * YDELTA;
ydisp++;
}
}
atts = null;
isAppletTag = false;
isObjectTag = false;
isEmbedTag = false;
}
} else {
String nm = scanIdentifier(in);
if (nm.equalsIgnoreCase("param")) {
Hashtable t = scanTag(in);
String att = (String) t.get("name");
if (att == null) {
statusMsgStream.println(requiresNameWarning);
} else {
String val = (String) t.get("value");
if (val == null) {
statusMsgStream.println(requiresNameWarning);
} else if (atts != null) {
atts.put(att.toLowerCase(), val);
} else {
statusMsgStream.println(paramOutsideWarning);
}
}
} else if (nm.equalsIgnoreCase("applet")) {
isAppletTag = true;
atts = scanTag(in);
if (atts.get("code") == null && atts.get("object") == null) {
statusMsgStream.println(appletRequiresCodeWarning);
atts = null;
} else if (atts.get("width") == null) {
statusMsgStream.println(appletRequiresWidthWarning);
atts = null;
} else if (atts.get("height") == null) {
statusMsgStream.println(appletRequiresHeightWarning);
atts = null;
}
} else if (nm.equalsIgnoreCase("object")) {
isObjectTag = true;
atts = scanTag(in);
// The <OBJECT> attribute codebase isn't what
// we want. If its defined, remove it.
if (atts.get("codebase") != null) {
atts.remove("codebase");
}
if (atts.get("width") == null) {
statusMsgStream.println(objectRequiresWidthWarning);
atts = null;
} else if (atts.get("height") == null) {
statusMsgStream.println(objectRequiresHeightWarning);
atts = null;
}
} else if (nm.equalsIgnoreCase("embed")) {
isEmbedTag = true;
atts = scanTag(in);
if (atts.get("code") == null && atts.get("object") == null) {
statusMsgStream.println(embedRequiresCodeWarning);
atts = null;
} else if (atts.get("width") == null) {
statusMsgStream.println(embedRequiresWidthWarning);
atts = null;
} else if (atts.get("height") == null) {
statusMsgStream.println(embedRequiresHeightWarning);
atts = null;
}
} else if (nm.equalsIgnoreCase("app")) {
statusMsgStream.println(appNotLongerSupportedWarning);
Hashtable atts2 = scanTag(in);
nm = (String) atts2.get("class");
if (nm != null) {
atts2.remove("class");
atts2.put("code", nm + ".class");
}
nm = (String) atts2.get("src");
if (nm != null) {
atts2.remove("src");
atts2.put("codebase", nm);
}
if (atts2.get("width") == null) {
atts2.put("width", "100");
}
if (atts2.get("height") == null) {
atts2.put("height", "100");
}
printTag(statusMsgStream, atts2);
statusMsgStream.println();
}
}
}
}
in.close();
}
/** Create the applet viewer */
public AppletViewer(
int x,
int y,
URL doc,
Hashtable atts,
PrintStream statusMsgStream,
AppletViewerFactory factory) {
this.factory = factory;
this.statusMsgStream = statusMsgStream;
setTitle(amh.getMessage("tool.title", atts.get("code")));
MenuBar mb = factory.getBaseMenuBar();
Menu m = new Menu(amh.getMessage("menu.applet"));
addMenuItem(m, "menuitem.restart");
addMenuItem(m, "menuitem.reload");
addMenuItem(m, "menuitem.stop");
addMenuItem(m, "menuitem.save");
addMenuItem(m, "menuitem.start");
addMenuItem(m, "menuitem.clone");
m.add(new MenuItem("-"));
addMenuItem(m, "menuitem.tag");
addMenuItem(m, "menuitem.info");
addMenuItem(m, "menuitem.edit").disable();
addMenuItem(m, "menuitem.encoding");
m.add(new MenuItem("-"));
addMenuItem(m, "menuitem.print");
m.add(new MenuItem("-"));
addMenuItem(m, "menuitem.props");
m.add(new MenuItem("-"));
addMenuItem(m, "menuitem.close");
if (factory.isStandalone()) {
addMenuItem(m, "menuitem.quit");
}
mb.add(m);
setMenuBar(mb);
add("Center", panel = new AppletViewerPanel(doc, atts));
add("South", label = new Label(amh.getMessage("label.hello")));
panel.init();
appletPanels.addElement(panel);
pack();
move(x, y);
setVisible(true);
WindowListener windowEventListener =
new WindowAdapter() {
public void windowClosing(WindowEvent evt) {
appletClose();
}
public void windowIconified(WindowEvent evt) {
appletStop();
}
public void windowDeiconified(WindowEvent evt) {
appletStart();
}
};
class AppletEventListener implements AppletListener {
final Frame frame;
public AppletEventListener(Frame frame) {
this.frame = frame;
}
public void appletStateChanged(AppletEvent evt) {
AppletPanel src = (AppletPanel) evt.getSource();
switch (evt.getID()) {
case AppletPanel.APPLET_RESIZE:
{
if (src != null) {
resize(preferredSize());
validate();
}
break;
}
case AppletPanel.APPLET_LOADING_COMPLETED:
{
Applet a = src.getApplet(); // j86.sun.applet.AppletPanel
// Fixed #4754451: Applet can have methods running on main
// thread event queue.
//
// The cause of this bug is that the frame of the applet
// is created in main thread group. Thus, when certain
// AWT/Swing events are generated, the events will be
// dispatched through the wrong event dispatch thread.
//
// To fix this, we rearrange the AppContext with the frame,
// so the proper event queue will be looked up.
//
// Swing also maintains a Frame list for the AppContext,
// so we will have to rearrange it as well.
//
if (a != null)
AppletPanel.changeFrameAppContext(frame, SunToolkit.targetToAppContext(a));
else AppletPanel.changeFrameAppContext(frame, AppContext.getAppContext());
break;
}
}
}
};
addWindowListener(windowEventListener);
panel.addAppletListener(new AppletEventListener(this));
// Start the applet
showStatus(amh.getMessage("status.start"));
initEventQueue();
}