void addWindowSubclass() {
long /*int*/ hwndChild = OS.GetWindow(browser.handle, OS.GW_CHILD);
if (SubclassProc == null) {
SubclassProc = new Callback(MozillaDelegate.class, "windowProc", 4); // $NON-NLS-1$
MozillaProc = OS.GetWindowLongPtr(hwndChild, OS.GWL_WNDPROC);
}
OS.SetWindowLongPtr(hwndChild, OS.GWL_WNDPROC, SubclassProc.getAddress());
}
private void installMouseHook() {
if (mouseCallback == null) {
mouseCallback = new Callback(this, "MouseProc", 3);
newAddress = mouseCallback.getAddress();
if (newAddress == 0) SWT.error(SWT.ERROR_NO_MORE_CALLBACKS);
int threadId = Extension.GetCurrentThreadId();
oldAddress = Extension.SetWindowsHookEx(Win32.WH_MOUSE, newAddress, 0, threadId);
shell.addDisposeListener(
new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
if (mouseCallback != null) {
Extension.UnhookWindowsHookEx(oldAddress);
mouseCallback.dispose();
mouseCallback = null;
newAddress = 0;
}
}
});
}
}
static {
menuItemSelectedFunc = new Callback(ToolBar.class, "MenuItemSelectedProc", 2);
if (menuItemSelectedFunc.getAddress() == 0) SWT.error(SWT.ERROR_NO_MORE_CALLBACKS);
}
/** See Apple Technical Q&A 1079 (http://developer.apple.com/qa/qa2001/qa1079.html) */
@Override
public void initPlatformMenu(Display display, final PlatformMenuActions actions) {
// Callback target
Object target =
new Object() {
int commandProc(int nextHandler, int theEvent, int userData) {
if (OS.GetEventKind(theEvent) == OS.kEventProcessCommand) {
HICommand command = new HICommand();
OS.GetEventParameter(
theEvent,
OS.kEventParamDirectObject,
OS.typeHICommand,
null,
HICommand.sizeof,
null,
command);
switch (command.commandID) {
case kHICommandPreferences:
actions.doPreferences();
return OS.noErr;
case kHICommandAbout:
actions.doAbout();
return OS.noErr;
case OS.kHICommandQuit:
actions.doExitApplication();
return OS.noErr;
default:
break;
}
}
return OS.eventNotHandledErr;
}
};
final Callback commandCallback = new Callback(target, "commandProc", 3); // $NON-NLS-1$
int commandProc = commandCallback.getAddress();
if (commandProc == 0) {
commandCallback.dispose();
return; // give up
}
// Install event handler for commands
int[] mask = new int[] {OS.kEventClassCommand, OS.kEventProcessCommand};
OS.InstallEventHandler(
OS.GetApplicationEventTarget(), commandProc, mask.length / 2, mask, 0, null);
// create About Eclipse menu command
int[] outMenu = new int[1];
short[] outIndex = new short[1];
if (OS.GetIndMenuItemWithCommandID(0, kHICommandPreferences, 1, outMenu, outIndex) == OS.noErr
&& outMenu[0] != 0) {
int menu = outMenu[0];
int l = fAboutActionName.length();
char buffer[] = new char[l];
fAboutActionName.getChars(0, l, buffer, 0);
int str = OS.CFStringCreateWithCharacters(OS.kCFAllocatorDefault, buffer, l);
OS.InsertMenuItemTextWithCFString(menu, str, (short) 0, 0, kHICommandAbout);
OS.CFRelease(str);
// add separator between About & Preferences
OS.InsertMenuItemTextWithCFString(menu, 0, (short) 1, OS.kMenuItemAttrSeparator, 0);
// enable pref menu
OS.EnableMenuCommand(menu, kHICommandPreferences);
// disable services menu
OS.DisableMenuCommand(menu, kHICommandServices);
}
// schedule disposal of callback object
display.disposeExec(
new Runnable() {
public void run() {
commandCallback.dispose();
}
});
}