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devdraw: set window name to argv[0]

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R=rsc
CC=r
https://codereview.appspot.com/12577043
This commit is contained in:
Russ Cox 2013-08-06 23:44:06 -04:00
parent bf63f986ff
commit 1670a244d9
1 changed files with 120 additions and 0 deletions
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120
src/cmd/devdraw/cocoa-screen.m
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@ -38,6 +38,8 @@ int useliveresizing = 0;
int useoldfullscreen = 0;
int usebigarrow = 0;
static void setprocname(const char*);
/*
* By default, devdraw ignores retina displays. A non-zero evironment variable
* |devdrawretina| will override this.
@ -84,6 +86,8 @@ threadmain(int argc, char **argv)
default:
usage();
}ARGEND
setprocname(argv0);
if (envvar = getenv("devdrawretina"))
devdrawretina = atoi(envvar) > 0;
@ -1457,3 +1461,119 @@ scalepoint(NSPoint pt, CGFloat scale)
pt.y *= scale;
return pt;
}
static void
setprocname(const char *s)
{
CFStringRef process_name;
process_name = CFStringCreateWithBytes(nil, (uchar*)s, strlen(s), kCFStringEncodingUTF8, false);
// Adapted from Chrome's mac_util.mm.
// http://src.chromium.org/viewvc/chrome/trunk/src/base/mac/mac_util.mm
//
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Warning: here be dragons! This is SPI reverse-engineered from WebKit's
// plugin host, and could break at any time (although realistically it's only
// likely to break in a new major release).
// When 10.7 is available, check that this still works, and update this
// comment for 10.8.
// Private CFType used in these LaunchServices calls.
typedef CFTypeRef PrivateLSASN;
typedef PrivateLSASN (*LSGetCurrentApplicationASNType)();
typedef OSStatus (*LSSetApplicationInformationItemType)(int, PrivateLSASN,
CFStringRef,
CFStringRef,
CFDictionaryRef*);
static LSGetCurrentApplicationASNType ls_get_current_application_asn_func =
NULL;
static LSSetApplicationInformationItemType
ls_set_application_information_item_func = NULL;
static CFStringRef ls_display_name_key = NULL;
static bool did_symbol_lookup = false;
if (!did_symbol_lookup) {
did_symbol_lookup = true;
CFBundleRef launch_services_bundle =
CFBundleGetBundleWithIdentifier(CFSTR("com.apple.LaunchServices"));
if (!launch_services_bundle) {
fprint(2, "Failed to look up LaunchServices bundle\n");
return;
}
ls_get_current_application_asn_func =
(LSGetCurrentApplicationASNType)(
CFBundleGetFunctionPointerForName(
launch_services_bundle, CFSTR("_LSGetCurrentApplicationASN")));
if (!ls_get_current_application_asn_func)
fprint(2, "Could not find _LSGetCurrentApplicationASN\n");
ls_set_application_information_item_func =
(LSSetApplicationInformationItemType)(
CFBundleGetFunctionPointerForName(
launch_services_bundle,
CFSTR("_LSSetApplicationInformationItem")));
if (!ls_set_application_information_item_func)
fprint(2, "Could not find _LSSetApplicationInformationItem\n");
CFStringRef* key_pointer = (CFStringRef*)(
CFBundleGetDataPointerForName(launch_services_bundle,
CFSTR("_kLSDisplayNameKey")));
ls_display_name_key = key_pointer ? *key_pointer : NULL;
if (!ls_display_name_key)
fprint(2, "Could not find _kLSDisplayNameKey\n");
// Internally, this call relies on the Mach ports that are started up by the
// Carbon Process Manager. In debug builds this usually happens due to how
// the logging layers are started up; but in release, it isn't started in as
// much of a defined order. So if the symbols had to be loaded, go ahead
// and force a call to make sure the manager has been initialized and hence
// the ports are opened.
ProcessSerialNumber psn;
GetCurrentProcess(&psn);
}
if (!ls_get_current_application_asn_func ||
!ls_set_application_information_item_func ||
!ls_display_name_key) {
return;
}
PrivateLSASN asn = ls_get_current_application_asn_func();
// Constant used by WebKit; what exactly it means is unknown.
const int magic_session_constant = -2;
OSErr err =
ls_set_application_information_item_func(magic_session_constant, asn,
ls_display_name_key,
process_name,
NULL /* optional out param */);
if(err != noErr)
fprint(2, "Call to set process name failed\n");
}