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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsCommandLineServiceMac.h"
#include "MacApplicationDelegate.h"
#include <CoreFoundation/CoreFoundation.h>
#include <Carbon/Carbon.h>
namespace CommandLineServiceMac {
static const int kArgsGrowSize = 20;
static char** sArgs = nullptr;
static int sArgsAllocated = 0;
static int sArgsUsed = 0;
static bool sBuildingCommandLine = false;
void AddToCommandLine(const char* inArgText)
{
if (sArgsUsed >= sArgsAllocated - 1) {
// realloc does not free the given pointer if allocation fails
char **temp = static_cast<char**>(realloc(sArgs, (sArgsAllocated + kArgsGrowSize) * sizeof(char*)));
if (!temp)
return;
sArgs = temp;
sArgsAllocated += kArgsGrowSize;
}
char *temp2 = strdup(inArgText);
if (!temp2)
return;
sArgs[sArgsUsed++] = temp2;
sArgs[sArgsUsed] = nullptr;
return;
}
void SetupMacCommandLine(int& argc, char**& argv, bool forRestart)
{
sArgs = static_cast<char **>(malloc(kArgsGrowSize * sizeof(char*)));
if (!sArgs)
return;
sArgsAllocated = kArgsGrowSize;
sArgs[0] = nullptr;
sArgsUsed = 0;
sBuildingCommandLine = true;
// Copy args, stripping anything we don't want.
for (int arg = 0; arg < argc; arg++) {
char* flag = argv[arg];
// Don't pass on the psn (Process Serial Number) flag from the OS, or
// the "-foreground" flag since it will be set below if necessary.
if (strncmp(flag, "-psn_", 5) != 0 &&
strncmp(flag, "-foreground", 11) != 0)
AddToCommandLine(flag);
}
// Force processing of any pending Apple GetURL Events while we're building
// the command line. The handlers will append to the command line rather than
// act directly so there is no chance we'll process them during a XUL window
// load and accidentally open unnecessary windows and home pages.
ProcessPendingGetURLAppleEvents();
// If the process will be relaunched, the child should be in the foreground
// if the parent is in the foreground. This will be communicated in a
// command-line argument to the child.
if (forRestart) {
Boolean isForeground = false;
ProcessSerialNumber psnSelf, psnFront;
if (::GetCurrentProcess(&psnSelf) == noErr &&
::GetFrontProcess(&psnFront) == noErr &&
::SameProcess(&psnSelf, &psnFront, &isForeground) == noErr &&
isForeground) {
AddToCommandLine("-foreground");
}
}
sBuildingCommandLine = false;
argc = sArgsUsed;
argv = sArgs;
}
bool AddURLToCurrentCommandLine(const char* aURL)
{
if (!sBuildingCommandLine) {
return false;
}
AddToCommandLine("-url");
AddToCommandLine(aURL);
return true;
}
} // namespace CommandLineServiceMac
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