xserver-multidpi/hw/xquartz/pbproxy/x-input.m
George Peter Staplin 7bb73a9513 XQuartz: pbproxy: Possibly fix a memory leak by using an [NSApp run] loop,
instead of calling CFRunLoopRun() directly.  The leak wasn't reproducible on
this machine, but someone was able to produce a leak trace with Instruments
that indicates it was leaking in the CFRunLoopRun() path.

x-input.m: dequeue and ignore events when pbproxy_active is false.

x-selection.h: add an is_active method that is used by x-input.m to ignore
events.

x-selection.m: Handle nearly every preference, except for primary_on_grab,
which I don't really understand yet.
(cherry picked from commit 4d51ad851e)
2008-10-03 11:14:49 -07:00

136 lines
3.8 KiB
Objective-C

/* x-input.m -- event handling
$Id: x-input.m,v 1.26 2007-04-07 20:39:03 jharper Exp $
Copyright (c) 2002, 2008 Apple Computer, Inc. All rights reserved. */
#include "pbproxy.h"
#import "x-selection.h"
#include <CoreFoundation/CFSocket.h>
#include <CoreFoundation/CFRunLoop.h>
#include <X11/Xatom.h>
#include <X11/keysym.h>
#include <X11/extensions/applewm.h>
#include <unistd.h>
static CFRunLoopSourceRef x_dpy_source;
/* Timestamp when the X server last told us it's active */
static Time last_activation_time;
static void x_event_apple_wm_notify(XAppleWMNotifyEvent *e) {
switch (e->type - x_apple_wm_event_base) {
case AppleWMActivationNotify:
switch (e->kind) {
case AppleWMIsActive:
last_activation_time = e->time;
[x_selection_object () x_active:e->time];
break;
case AppleWMIsInactive:
[x_selection_object () x_inactive:e->time];
break;
case AppleWMReloadPreferences:
[x_selection_object () reload_preferences];
break;
}
break;
case AppleWMPasteboardNotify:
switch (e->kind) {
case AppleWMCopyToPasteboard:
[x_selection_object () x_copy:e->time];
}
break;
}
}
void x_input_run (void) {
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
if (nil == pool)
{
fprintf(stderr, "unable to allocate/init auto release pool!\n");
return;
}
while (XPending (x_dpy) != 0) {
XEvent e;
XNextEvent (x_dpy, &e);
/* If pbproxy isn't active (in the preferences), then don't do anything. */
if (![x_selection_object() is_active])
continue;
switch (e.type) {
case SelectionClear:
[x_selection_object () clear_event:&e.xselectionclear];
break;
case SelectionRequest:
[x_selection_object () request_event:&e.xselectionrequest];
break;
case SelectionNotify:
[x_selection_object () notify_event:&e.xselection];
break;
case PropertyNotify:
[x_selection_object () property_event:&e.xproperty];
break;
default:
if (e.type - x_apple_wm_event_base >= 0
&& e.type - x_apple_wm_event_base < AppleWMNumberEvents) {
x_event_apple_wm_notify ((XAppleWMNotifyEvent *) &e);
}
break;
}
XFlush(x_dpy);
}
[pool release];
}
static int add_input_socket (int sock, CFOptionFlags callback_types,
CFSocketCallBack callback, const CFSocketContext *ctx,
CFRunLoopSourceRef *cf_source) {
CFSocketRef cf_sock;
cf_sock = CFSocketCreateWithNative (kCFAllocatorDefault, sock,
callback_types, callback, ctx);
if (cf_sock == NULL) {
close (sock);
return FALSE;
}
*cf_source = CFSocketCreateRunLoopSource (kCFAllocatorDefault,
cf_sock, 0);
CFRelease (cf_sock);
if (*cf_source == NULL)
return FALSE;
CFRunLoopAddSource (CFRunLoopGetCurrent (),
*cf_source, kCFRunLoopDefaultMode);
return TRUE;
}
static void x_input_callback (CFSocketRef sock, CFSocketCallBackType type,
CFDataRef address, const void *data, void *info) {
x_input_run ();
}
void x_input_register(void) {
if (!add_input_socket (ConnectionNumber (x_dpy), kCFSocketReadCallBack,
x_input_callback, NULL, &x_dpy_source)) {
exit (1);
}
}