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+//
+// XServer.m
+//
+// This class handles the interaction between the Cocoa front-end
+// and the Darwin X server thread.
+//
+// Created by Andreas Monitzer on January 6, 2001.
+//
+/*
+ * Copyright (c) 2001 Andreas Monitzer. All Rights Reserved.
+ * Copyright (c) 2002-2003 Torrey T. Lyons. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the name(s) of the above copyright
+ * holders shall not be used in advertising or otherwise to promote the
+ * sale, use or other dealings in this Software without prior written
+ * authorization.
+ */
+/* $XFree86: xc/programs/Xserver/hw/darwin/quartz/XServer.m,v 1.8 2003/01/23 00:34:26 torrey Exp $ */
+
+#include "quartzCommon.h"
+
+#define BOOL xBOOL
+#include "X.h"
+#include "Xproto.h"
+#include "os.h"
+#include "darwin.h"
+#undef BOOL
+
+#import "XServer.h"
+#import "Preferences.h"
+
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/syslimits.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <pwd.h>
+#include <signal.h>
+#include <fcntl.h>
+
+// For power management notifications
+#import <mach/mach_port.h>
+#import <mach/mach_interface.h>
+#import <mach/mach_init.h>
+#import <IOKit/pwr_mgt/IOPMLib.h>
+#import <IOKit/IOMessage.h>
+
+#define ENQUEUE(xe) \
+{ \
+ char byte = 0; \
+ DarwinEQEnqueue(xe); \
+ /* signal there is an event ready to handle */ \
+ write(eventWriteFD, &byte, 1); \
+}
+
+// Types of shells
+enum {
+ shell_Unknown,
+ shell_Bourne,
+ shell_C
+};
+
+typedef struct {
+ char *name;
+ int type;
+} shellList_t;
+
+static shellList_t const shellList[] = {
+ { "csh", shell_C }, // standard C shell
+ { "tcsh", shell_C }, // ... needs no introduction
+ { "sh", shell_Bourne }, // standard Bourne shell
+ { "zsh", shell_Bourne }, // Z shell
+ { "bash", shell_Bourne }, // GNU Bourne again shell
+ { NULL, shell_Unknown }
+};
+
+extern int argcGlobal;
+extern char **argvGlobal;
+extern char **envpGlobal;
+extern int main(int argc, char *argv[], char *envp[]);
+extern void HideMenuBar(void);
+extern void ShowMenuBar(void);
+extern void QuartzReallySetCursor();
+static void childDone(int sig);
+static void powerDidChange(void *x, io_service_t y, natural_t messageType,
+ void *messageArgument);
+
+static NSPort *signalPort;
+static NSPort *returnPort;
+static NSPortMessage *signalMessage;
+static pid_t clientPID;
+static XServer *oneXServer;
+static NSRect aquaMenuBarBox;
+static io_connect_t root_port;
+
+
+@implementation XServer
+
+- (id)init
+{
+ self = [super init];
+ oneXServer = self;
+
+ serverState = server_NotStarted;
+ serverLock = [[NSRecursiveLock alloc] init];
+ clientPID = 0;
+ sendServerEvents = NO;
+ serverVisible = NO;
+ rootlessMenuBarVisible = YES;
+ queueShowServer = YES;
+ quartzServerQuitting = NO;
+ mouseState = 0;
+ eventWriteFD = quartzEventWriteFD;
+ windowClass = [NSWindow class];
+
+ // set up a port to safely send messages to main thread from server thread
+ signalPort = [[NSPort port] retain];
+ returnPort = [[NSPort port] retain];
+ signalMessage = [[NSPortMessage alloc] initWithSendPort:signalPort
+ receivePort:returnPort components:nil];
+
+ // set up receiving end
+ [signalPort setDelegate:self];
+ [[NSRunLoop currentRunLoop] addPort:signalPort
+ forMode:NSDefaultRunLoopMode];
+ [[NSRunLoop currentRunLoop] addPort:signalPort
+ forMode:NSModalPanelRunLoopMode];
+
+ return self;
+}
+
+- (NSApplicationTerminateReply)
+ applicationShouldTerminate:(NSApplication *)sender
+{
+ // Quit if the X server is not running
+ if ([serverLock tryLock]) {
+ quartzServerQuitting = YES;
+ serverState = server_Done;
+ if (clientPID != 0)
+ kill(clientPID, SIGINT);
+ return NSTerminateNow;
+ }
+
+ // Hide the X server and stop sending it events
+ [self showServer:NO];
+ sendServerEvents = NO;
+
+ if (clientPID != 0 || !quartzStartClients) {
+ int but;
+
+ but = NSRunAlertPanel(NSLocalizedString(@"Quit X server?",@""),
+ NSLocalizedString(@"Quitting the X server will terminate any running X Window System programs.",@""),
+ NSLocalizedString(@"Quit",@""),
+ NSLocalizedString(@"Cancel",@""),
+ nil);
+
+ switch (but) {
+ case NSAlertDefaultReturn: // quit
+ break;
+ case NSAlertAlternateReturn: // cancel
+ if (serverState == server_Running)
+ sendServerEvents = YES;
+ return NSTerminateCancel;
+ }
+ }
+
+ quartzServerQuitting = YES;
+ if (clientPID != 0)
+ kill(clientPID, SIGINT);
+
+ // At this point the X server is either running or starting.
+ if (serverState == server_Starting) {
+ // Quit will be queued later when server is running
+ return NSTerminateLater;
+ } else if (serverState == server_Running) {
+ [self quitServer];
+ }
+
+ return NSTerminateNow;
+}
+
+// Ensure that everything has quit cleanly
+- (void)applicationWillTerminate:(NSNotification *)aNotification
+{
+ // Make sure the client process has finished
+ if (clientPID != 0) {
+ NSLog(@"Waiting on client process...");
+ sleep(2);
+
+ // If the client process hasn't finished yet, kill it off
+ if (clientPID != 0) {
+ int clientStatus;
+ NSLog(@"Killing client process...");
+ killpg(clientPID, SIGKILL);
+ waitpid(clientPID, &clientStatus, 0);
+ }
+ }
+
+ // Wait until the X server thread quits
+ [serverLock lock];
+}
+
+// returns YES when event was handled
+- (BOOL)translateEvent:(NSEvent *)anEvent
+{
+ xEvent xe;
+ static BOOL mouse1Pressed = NO;
+ NSEventType type;
+ unsigned int flags;
+
+ if (!sendServerEvents) {
+ return NO;
+ }
+
+ type = [anEvent type];
+ flags = [anEvent modifierFlags];
+
+ if (!quartzRootless) {
+ // Check for switch keypress
+ if ((type == NSKeyDown) && (![anEvent isARepeat]) &&
+ ([anEvent keyCode] == [Preferences keyCode]))
+ {
+ unsigned int switchFlags = [Preferences modifiers];
+
+ // Switch if all the switch modifiers are pressed, while none are
+ // pressed that should not be, except for caps lock.
+ if (((flags & switchFlags) == switchFlags) &&
+ ((flags & ~(switchFlags | NSAlphaShiftKeyMask)) == 0))
+ {
+ [self toggle];
+ return YES;
+ }
+ }
+
+ if (!serverVisible)
+ return NO;
+ }
+
+ memset(&xe, 0, sizeof(xe));
+
+ switch (type) {
+ case NSLeftMouseUp:
+ [self getMousePosition:&xe fromEvent:anEvent];
+ if (quartzRootless && !mouse1Pressed) {
+ // MouseUp after MouseDown in menu - ignore
+ return NO;
+ }
+ mouse1Pressed = NO;
+ xe.u.u.type = ButtonRelease;
+ xe.u.u.detail = 1;
+ break;
+ case NSLeftMouseDown:
+ [self getMousePosition:&xe fromEvent:anEvent];
+ if (quartzRootless &&
+ ! ([anEvent window] &&
+ [[anEvent window] isKindOfClass:windowClass])) {
+ // Click in non X window - ignore
+ return NO;
+ }
+ mouse1Pressed = YES;
+ xe.u.u.type = ButtonPress;
+ xe.u.u.detail = 1;
+ break;
+ case NSMouseMoved:
+ case NSLeftMouseDragged:
+ case NSRightMouseDragged:
+ case NSOtherMouseDragged:
+ [self getMousePosition:&xe fromEvent:anEvent];
+ xe.u.u.type = MotionNotify;
+ break;
+ case NSSystemDefined:
+ {
+ long hwButtons = [anEvent data2];
+
+ if (![anEvent subtype]==7)
+ return NO; // we only use multibutton mouse events
+ if (mouseState == hwButtons)
+ return NO; // ignore double events
+ mouseState = hwButtons;
+
+ [self getMousePosition:&xe fromEvent:anEvent];
+ xe.u.u.type = kXDarwinUpdateButtons;
+ xe.u.clientMessage.u.l.longs0 = [anEvent data1];
+ xe.u.clientMessage.u.l.longs1 =[anEvent data2];
+ break;
+ }
+ case NSScrollWheel:
+ [self getMousePosition:&xe fromEvent:anEvent];
+ xe.u.u.type = kXDarwinScrollWheel;
+ xe.u.clientMessage.u.s.shorts0 = [anEvent deltaY];
+ break;
+ case NSKeyDown:
+ case NSKeyUp:
+ // If the mouse is not on the valid X display area,
+ // we don't send the X server key events.
+ if (![self getMousePosition:&xe fromEvent:nil])
+ return NO;
+ if (type == NSKeyDown)
+ xe.u.u.type = KeyPress;
+ else
+ xe.u.u.type = KeyRelease;
+ xe.u.u.detail = [anEvent keyCode];
+ break;
+ case NSFlagsChanged:
+ [self getMousePosition:&xe fromEvent:nil];
+ xe.u.u.type = kXDarwinUpdateModifiers;
+ xe.u.clientMessage.u.l.longs0 = flags;
+ break;
+ case NSOtherMouseDown: // undocumented MouseDown
+ case NSOtherMouseUp: // undocumented MouseUp
+ // Hide these from AppKit to avoid its log messages
+ return YES;
+ default:
+ return NO;
+ }
+
+ [self sendXEvent:&xe];
+
+ // Rootless: Send first NSLeftMouseDown to windows and views so window
+ // ordering can be suppressed.
+ // Don't pass further events - they (incorrectly?) bring the window
+ // forward no matter what.
+ if (quartzRootless &&
+ (type == NSLeftMouseDown || type == NSLeftMouseUp) &&
+ [anEvent clickCount] == 1 &&
+ [[anEvent window] isKindOfClass:windowClass])
+ {
+ return NO;
+ }
+
+ return YES;
+}
+
+// Return mouse coordinates, inverting y coordinate.
+// The coordinates are extracted from an event or the current mouse position.
+// For rootless mode, the menu bar is treated as not part of the usable
+// X display area and the cursor position is adjusted accordingly.
+// Returns YES if the cursor is not in the menu bar.
+- (BOOL)getMousePosition:(xEvent *)xe fromEvent:(NSEvent *)anEvent
+{
+ NSPoint pt;
+
+ if (anEvent) {
+ NSWindow *eventWindow = [anEvent window];
+
+ if (eventWindow) {
+ pt = [anEvent locationInWindow];
+ pt.x += [eventWindow frame].origin.x;
+ pt.y += [eventWindow frame].origin.y;
+ } else {
+ pt = [NSEvent mouseLocation];
+ }
+ } else {
+ pt = [NSEvent mouseLocation];
+ }
+
+ xe->u.keyButtonPointer.rootX = (int)(pt.x);
+
+ if (quartzRootless && NSMouseInRect(pt, aquaMenuBarBox, NO)) {
+ // mouse in menu bar - tell X11 that it's just below instead
+ xe->u.keyButtonPointer.rootY = aquaMenuBarHeight;
+ return NO;
+ } else {
+ xe->u.keyButtonPointer.rootY =
+ NSHeight([[NSScreen mainScreen] frame]) - (int)(pt.y);
+ return YES;
+ }
+}
+
+// Append a string to the given enviroment variable
++ (void)append:(NSString*)value toEnv:(NSString*)name
+{
+ setenv([name cString],
+ [[[NSString stringWithCString:getenv([name cString])]
+ stringByAppendingString:value] cString],1);
+}
+
+- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
+{
+ // Block SIGPIPE
+ // SIGPIPE repeatably killed the (rootless) server when closing a
+ // dozen xterms in rapid succession. Those SIGPIPEs should have been
+ // sent to the X server thread, which ignores them, but somehow they
+ // ended up in this thread instead.
+ {
+ sigset_t set;
+ sigemptyset(&set);
+ sigaddset(&set, SIGPIPE);
+ // pthread_sigmask not implemented yet
+ // pthread_sigmask(SIG_BLOCK, &set, NULL);
+ sigprocmask(SIG_BLOCK, &set, NULL);
+ }
+
+ if (quartzRootless == -1) {
+ // The display mode was not set from the command line.
+ // Show mode pick panel?
+ if ([Preferences modeWindow]) {
+ if ([Preferences rootless])
+ [startRootlessButton setKeyEquivalent:@"\r"];
+ else
+ [startFullScreenButton setKeyEquivalent:@"\r"];
+ [modeWindow makeKeyAndOrderFront:nil];
+ } else {
+ // Otherwise use default mode
+ quartzRootless = [Preferences rootless];
+ [self startX];
+ }
+ } else {
+ [self startX];
+ }
+}
+
+// Start the X server thread and the client process
+- (void)startX
+{
+ NSDictionary *appDictionary;
+ NSString *appVersion;
+
+ [modeWindow close];
+
+ // Calculate the height of the menu bar so rootless mode can avoid it
+ if (quartzRootless) {
+ aquaMenuBarHeight = NSHeight([[NSScreen mainScreen] frame]) -
+ NSMaxY([[NSScreen mainScreen] visibleFrame]) - 1;
+ aquaMenuBarBox =
+ NSMakeRect(0, NSMaxY([[NSScreen mainScreen] visibleFrame]) + 1,
+ NSWidth([[NSScreen mainScreen] frame]),
+ aquaMenuBarHeight);
+ }
+
+ // Write the XDarwin version to the console log
+ appDictionary = [[NSBundle mainBundle] infoDictionary];
+ appVersion = [appDictionary objectForKey:@"CFBundleShortVersionString"];
+ if (appVersion)
+ NSLog(@"\n%@", appVersion);
+ else
+ NSLog(@"No version");
+
+ // Start the X server thread
+ serverState = server_Starting;
+ [NSThread detachNewThreadSelector:@selector(run) toTarget:self
+ withObject:nil];
+
+ // Start the X clients if started from GUI
+ if (quartzStartClients) {
+ [self startXClients];
+ }
+
+ if (quartzRootless) {
+ // There is no help window for rootless; just start
+ [helpWindow close];
+ helpWindow = nil;
+ } else {
+ IONotificationPortRef notify;
+ io_object_t anIterator;
+
+ // Register for system power notifications
+ root_port = IORegisterForSystemPower(0, &notify, powerDidChange,
+ &anIterator);
+ if (root_port) {
+ CFRunLoopAddSource([[NSRunLoop currentRunLoop] getCFRunLoop],
+ IONotificationPortGetRunLoopSource(notify),
+ kCFRunLoopDefaultMode);
+ } else {
+ NSLog(@"Failed to register for system power notifications.");
+ }
+
+ // Show the X switch window if not using dock icon switching
+ if (![Preferences dockSwitch])
+ [switchWindow orderFront:nil];
+
+ if ([Preferences startupHelp]) {
+ // display the full screen mode help
+ [helpWindow makeKeyAndOrderFront:nil];
+ queueShowServer = NO;
+ } else {
+ // start running full screen and make sure X is visible
+ ShowMenuBar();
+ [self closeHelpAndShow:nil];
+ }
+ }
+}
+
+// Finish starting the X server thread
+// This includes anything that must be done after the X server is
+// ready to process events.
+- (void)finishStartX
+{
+ sendServerEvents = YES;
+ serverState = server_Running;
+
+ if (quartzRootless) {
+ [self forceShowServer:[NSApp isActive]];
+ } else {
+ [self forceShowServer:queueShowServer];
+ }
+
+ if (quartzServerQuitting) {
+ [self quitServer];
+ [NSApp replyToApplicationShouldTerminate:YES];
+ }
+}
+
+// Start the first X clients in a separate process
+- (BOOL)startXClients
+{
+ struct passwd *passwdUser;
+ NSString *shellPath, *dashShellName, *commandStr, *startXPath;
+ NSMutableString *safeStartXPath;
+ NSRange aRange;
+ NSBundle *thisBundle;
+ const char *shellPathStr, *newargv[3], *shellNameStr;
+ int fd[2], outFD, length, shellType, i;
+
+ // Register to catch the signal when the client processs finishes
+ signal(SIGCHLD, childDone);
+
+ // Get user's password database entry
+ passwdUser = getpwuid(getuid());
+
+ // Find the shell to use
+ if ([Preferences useDefaultShell])
+ shellPath = [NSString stringWithCString:passwdUser->pw_shell];
+ else
+ shellPath = [Preferences shellString];
+
+ dashShellName = [NSString stringWithFormat:@"-%@",
+ [shellPath lastPathComponent]];
+ shellPathStr = [shellPath cString];
+ shellNameStr = [[shellPath lastPathComponent] cString];
+
+ if (access(shellPathStr, X_OK)) {
+ NSLog(@"Shell %s is not valid!", shellPathStr);
+ return NO;
+ }
+
+ // Find the type of shell
+ for (i = 0; shellList[i].name; i++) {
+ if (!strcmp(shellNameStr, shellList[i].name))
+ break;
+ }
+ shellType = shellList[i].type;
+
+ newargv[0] = [dashShellName cString];
+ if (shellType == shell_Bourne) {
+ // Bourne shells need to be told they are interactive to make
+ // sure they read all their initialization files.
+ newargv[1] = "-i";
+ newargv[2] = NULL;
+ } else {
+ newargv[1] = NULL;
+ }
+
+ // Create a pipe to communicate with the X client process
+ NSAssert(pipe(fd) == 0, @"Could not create new pipe.");
+
+ // Open a file descriptor for writing to stdout and stderr
+ outFD = open("/dev/console", O_WRONLY, 0);
+ if (outFD == -1) {
+ outFD = open("/dev/null", O_WRONLY, 0);
+ NSAssert(outFD != -1, @"Could not open shell output.");
+ }
+
+ // Fork process to start X clients in user's default shell
+ // Sadly we can't use NSTask because we need to start a login shell.
+ // Login shells are started by passing "-" as the first character of
+ // argument 0. NSTask forces argument 0 to be the shell's name.
+ clientPID = vfork();
+ if (clientPID == 0) {
+
+ // Inside the new process:
+ if (fd[0] != STDIN_FILENO) {
+ dup2(fd[0], STDIN_FILENO); // Take stdin from pipe
+ close(fd[0]);
+ }
+ close(fd[1]); // Close write end of pipe
+ if (outFD == STDOUT_FILENO) { // Setup stdout and stderr
+ dup2(outFD, STDERR_FILENO);
+ } else if (outFD == STDERR_FILENO) {
+ dup2(outFD, STDOUT_FILENO);
+ } else {
+ dup2(outFD, STDERR_FILENO);
+ dup2(outFD, STDOUT_FILENO);
+ close(outFD);
+ }
+
+ // Setup environment
+ setenv("HOME", passwdUser->pw_dir, 1);
+ setenv("SHELL", shellPathStr, 1);
+ setenv("LOGNAME", passwdUser->pw_name, 1);
+ setenv("USER", passwdUser->pw_name, 1);
+ setenv("TERM", "unknown", 1);
+ if (chdir(passwdUser->pw_dir)) // Change to user's home dir
+ NSLog(@"Could not change to user's home directory.");
+
+ execv(shellPathStr, (char * const *)newargv); // Start user's shell
+
+ NSLog(@"Could not start X client process with errno = %i.", errno);
+ _exit(127);
+ }
+
+ // In parent process:
+ close(fd[0]); // Close read end of pipe
+ close(outFD); // Close output file descriptor
+
+ thisBundle = [NSBundle bundleForClass:[self class]];
+ startXPath = [thisBundle pathForResource:@"startXClients" ofType:nil];
+ if (!startXPath) {
+ NSLog(@"Could not find startXClients in application bundle!");
+ return NO;
+ }
+
+ // We will run the startXClients script with the path in single quotes
+ // in case there are problematic characters in the path. We still have
+ // to worry about there being single quotes in the path. So, replace
+ // all instances of the ' character in startXPath with '\''.
+ safeStartXPath = [NSMutableString stringWithString:startXPath];
+ aRange = NSMakeRange(0, [safeStartXPath length]);
+ while (aRange.length) {
+ aRange = [safeStartXPath rangeOfString:@"'" options:0 range:aRange];
+ if (!aRange.length)
+ break;
+ [safeStartXPath replaceCharactersInRange:aRange
+ withString:@"\'\\'\'"];
+ aRange.location += 4;
+ aRange.length = [safeStartXPath length] - aRange.location;
+ }
+
+ if ([Preferences addToPath]) {
+ commandStr = [NSString stringWithFormat:@"'%@' :%d %@\n",
+ safeStartXPath, [Preferences display],
+ [Preferences addToPathString]];
+ } else {
+ commandStr = [NSString stringWithFormat:@"'%@' :%d\n",
+ safeStartXPath, [Preferences display]];
+ }
+
+ length = [commandStr cStringLength];
+ if (write(fd[1], [commandStr cString], length) != length) {
+ NSLog(@"Write to X client process failed.");
+ return NO;
+ }
+
+ // Close the pipe so that shell will terminate when xinit quits
+ close(fd[1]);
+
+ return YES;
+}
+
+// Run the X server thread
+- (void)run
+{
+ NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
+
+ [serverLock lock];
+ main(argcGlobal, argvGlobal, envpGlobal);
+ serverVisible = NO;
+ [pool release];
+ [serverLock unlock];
+ QuartzMessageMainThread(kQuartzServerDied, nil, 0);
+}
+
+// Full screen mode was picked in the mode pick panel
+- (IBAction)startFullScreen:(id)sender
+{
+ [Preferences setModeWindow:[startupModeButton intValue]];
+ [Preferences saveToDisk];
+ quartzRootless = FALSE;
+ [self startX];
+}
+
+// Rootless mode was picked in the mode pick panel
+- (IBAction)startRootless:(id)sender
+{
+ [Preferences setModeWindow:[startupModeButton intValue]];
+ [Preferences saveToDisk];
+ quartzRootless = TRUE;
+ [self startX];
+}
+
+// Close the help splash screen and show the X server
+- (IBAction)closeHelpAndShow:(id)sender
+{
+ if (sender) {
+ int helpVal = [startupHelpButton intValue];
+ [Preferences setStartupHelp:helpVal];
+ [Preferences saveToDisk];
+ }
+ [helpWindow close];
+ helpWindow = nil;
+
+ [self forceShowServer:YES];
+ [NSApp activateIgnoringOtherApps:YES];
+}
+
+// Show the X server when sent message from GUI
+- (IBAction)showAction:(id)sender
+{
+ [self forceShowServer:YES];
+}
+
+// Show or hide the X server or menu bar in rootless mode
+- (void)toggle
+{
+ if (quartzRootless) {
+#if 0
+ // FIXME: Remove or add option to not dodge menubar
+ if (rootlessMenuBarVisible)
+ HideMenuBar();
+ else
+ ShowMenuBar();
+ rootlessMenuBarVisible = !rootlessMenuBarVisible;
+#endif
+ } else {
+ [self showServer:!serverVisible];
+ }
+}
+
+// Show or hide the X server on screen
+- (void)showServer:(BOOL)show
+{
+ // Do not show or hide multiple times in a row
+ if (serverVisible == show)
+ return;
+
+ if (sendServerEvents) {
+ [self sendShowHide:show];
+ } else if (serverState == server_Starting) {
+ queueShowServer = show;
+ }
+}
+
+// Show or hide the X server irregardless of the current state
+- (void)forceShowServer:(BOOL)show
+{
+ serverVisible = !show;
+ [self showServer:show];
+}
+
+// Tell the X server to show or hide itself.
+// This ignores the current X server visible state.
+//
+// In full screen mode, the order we do things is important and must be
+// preserved between the threads. X drawing operations have to be performed
+// in the X server thread. It appears that we have the additional
+// constraint that we must hide and show the menu bar in the main thread.
+//
+// To show the X server:
+// 1. Capture the displays. (Main thread)
+// 2. Hide the menu bar. (Must be in main thread)
+// 3. Send event to X server thread to redraw X screen.
+// 4. Redraw the X screen. (Must be in X server thread)
+//
+// To hide the X server:
+// 1. Send event to X server thread to stop drawing.
+// 2. Stop drawing to the X screen. (Must be in X server thread)
+// 3. Message main thread that drawing is stopped.
+// 4. If main thread still wants X server hidden:
+// a. Release the displays. (Main thread)
+// b. Unhide the menu bar. (Must be in main thread)
+// Otherwise we have already queued an event to start drawing again.
+//
+- (void)sendShowHide:(BOOL)show
+{
+ xEvent xe;
+
+ [self getMousePosition:&xe fromEvent:nil];
+
+ if (show) {
+ if (!quartzRootless) {
+ QuartzFSCapture();
+ HideMenuBar();
+ }
+ xe.u.u.type = kXDarwinShow;
+ [self sendXEvent:&xe];
+
+ // the mouse location will have moved; track it
+ xe.u.u.type = MotionNotify;
+ [self sendXEvent:&xe];
+
+ // inform the X server of the current modifier state
+ xe.u.u.type = kXDarwinUpdateModifiers;
+ xe.u.clientMessage.u.l.longs0 = [[NSApp currentEvent] modifierFlags];
+ [self sendXEvent:&xe];
+
+ // put the pasteboard into the X cut buffer
+ [self readPasteboard];
+ } else {
+ // put the X cut buffer on the pasteboard
+ [self writePasteboard];
+
+ xe.u.u.type = kXDarwinHide;
+ [self sendXEvent:&xe];
+ }
+
+ serverVisible = show;
+}
+
+// Enable or disable rendering to the X screen
+- (void)setRootClip:(BOOL)enable
+{
+ xEvent xe;
+
+ xe.u.u.type = kXDarwinSetRootClip;
+ xe.u.clientMessage.u.l.longs0 = enable;
+ [self sendXEvent:&xe];
+}
+
+// Tell the X server to read from the pasteboard into the X cut buffer
+- (void)readPasteboard
+{
+ xEvent xe;
+
+ xe.u.u.type = kXDarwinReadPasteboard;
+ [self sendXEvent:&xe];
+}
+
+// Tell the X server to write the X cut buffer into the pasteboard
+- (void)writePasteboard
+{
+ xEvent xe;
+
+ xe.u.u.type = kXDarwinWritePasteboard;
+ [self sendXEvent:&xe];
+}
+
+- (void)quitServer
+{
+ xEvent xe;
+
+ xe.u.u.type = kXDarwinQuit;
+ [self sendXEvent:&xe];
+
+ // Revert to the Mac OS X arrow cursor. The main thread sets the cursor
+ // and it won't be responding to future requests to change it.
+ [[NSCursor arrowCursor] set];
+
+ serverState = server_Quitting;
+}
+
+- (void)sendXEvent:(xEvent *)xe
+{
+ // This field should be filled in for every event
+ xe->u.keyButtonPointer.time = GetTimeInMillis();
+
+#if 0
+ // FIXME: Really?
+ if (quartzRootless &&
+ (ev->type == NSLeftMouseDown || ev->type == NSLeftMouseUp ||
+ (ev->type == NSSystemDefined && ev->data.compound.subType == 7)))
+ {
+ // mouse button event - send mouseMoved to this position too
+ // X gets confused if it gets a click that isn't at the last
+ // reported mouse position.
+ xEvent moveEvent = *ev;
+ xe.u.u.type = NSMouseMoved;
+ [self sendXEvent:&moveEvent];
+ }
+#endif
+
+ ENQUEUE(xe);
+}
+
+// Handle messages from the X server thread
+- (void)handlePortMessage:(NSPortMessage *)portMessage
+{
+ unsigned msg = [portMessage msgid];
+
+ switch(msg) {
+ case kQuartzServerHidden:
+ // Make sure the X server wasn't queued to be shown again while
+ // the hide was pending.
+ if (!quartzRootless && !serverVisible) {
+ QuartzFSRelease();
+ ShowMenuBar();
+ }
+ break;
+
+ case kQuartzServerStarted:
+ [self finishStartX];
+ break;
+
+ case kQuartzServerDied:
+ sendServerEvents = NO;
+ serverState = server_Done;
+ if (!quartzServerQuitting) {
+ [NSApp terminate:nil]; // quit if we aren't already
+ }
+ break;
+
+ case kQuartzCursorUpdate:
+ QuartzReallySetCursor();
+ break;
+
+ case kQuartzPostEvent:
+ {
+ const xEvent *xe = [[[portMessage components] lastObject] bytes];
+ ENQUEUE(xe);
+ break;
+ }
+
+ default:
+ NSLog(@"Unknown message from server thread.");
+ }
+}
+
+// Quit the X server when the X client process finishes
+- (void)clientProcessDone:(int)clientStatus
+{
+ if (WIFEXITED(clientStatus)) {
+ int exitStatus = WEXITSTATUS(clientStatus);
+ if (exitStatus != 0)
+ NSLog(@"X client process terminated with status %i.", exitStatus);
+ } else {
+ NSLog(@"X client process terminated abnormally.");
+ }
+
+ if (!quartzServerQuitting) {
+ [NSApp terminate:nil]; // quit if we aren't already
+ }
+}
+
+// Called when the user clicks the application icon,
+// but not when Cmd-Tab is used.
+// Rootless: Don't switch until applicationWillBecomeActive.
+- (BOOL)applicationShouldHandleReopen:(NSApplication *)theApplication
+ hasVisibleWindows:(BOOL)flag
+{
+ if ([Preferences dockSwitch] && !quartzRootless) {
+ [self showServer:YES];
+ }
+ return NO;
+}
+
+- (void)applicationWillResignActive:(NSNotification *)aNotification
+{
+ [self showServer:NO];
+}
+
+- (void)applicationWillBecomeActive:(NSNotification *)aNotification
+{
+ if (quartzRootless)
+ [self showServer:YES];
+}
+
+@end
+
+
+// Send a message to the main thread, which calls handlePortMessage in
+// response. Must only be called from the X server thread because
+// NSPort is not thread safe.
+void QuartzMessageMainThread(unsigned msg, void *data, unsigned length)
+{
+ if (msg == kQuartzPostEvent) {
+ NSData *eventData = [NSData dataWithBytes:data length:length];
+ NSArray *eventArray = [NSArray arrayWithObject:eventData];
+ NSPortMessage *newMessage =
+ [[NSPortMessage alloc]
+ initWithSendPort:signalPort
+ receivePort:returnPort components:eventArray];
+ [newMessage setMsgid:msg];
+ [newMessage sendBeforeDate:[NSDate distantPast]];
+ [newMessage release];
+ } else {
+ [signalMessage setMsgid:msg];
+ [signalMessage sendBeforeDate:[NSDate distantPast]];
+ }
+}
+
+// Handle SIGCHLD signals
+static void childDone(int sig)
+{
+ int clientStatus;
+
+ if (clientPID == 0)
+ return;
+
+ // Make sure it was the client task that finished
+ if (waitpid(clientPID, &clientStatus, WNOHANG) == clientPID) {
+ if (WIFSTOPPED(clientStatus))
+ return;
+ clientPID = 0;
+ [oneXServer clientProcessDone:clientStatus];
+ }
+}
+
+static void powerDidChange(
+ void *x,
+ io_service_t y,
+ natural_t messageType,
+ void *messageArgument)
+{
+ switch (messageType) {
+ case kIOMessageSystemWillSleep:
+ if (!quartzRootless) {
+ [oneXServer setRootClip:FALSE];
+ }
+ IOAllowPowerChange(root_port, (long)messageArgument);
+ break;
+ case kIOMessageCanSystemSleep:
+ IOAllowPowerChange(root_port, (long)messageArgument);
+ break;
+ case kIOMessageSystemHasPoweredOn:
+ if (!quartzRootless) {
+ [oneXServer setRootClip:TRUE];
+ }
+ break;
+ }
+
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-20 18:57:29 +0000