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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
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2 /* This Source Code Form is subject to the terms of the Mozilla Public |
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3 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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5 |
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6 #include "nsCommandLineServiceMac.h" |
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7 #include "MacApplicationDelegate.h" |
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8 |
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9 #include <CoreFoundation/CoreFoundation.h> |
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10 #include <Carbon/Carbon.h> |
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11 |
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12 namespace CommandLineServiceMac { |
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13 |
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14 static const int kArgsGrowSize = 20; |
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15 |
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16 static char** sArgs = nullptr; |
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17 static int sArgsAllocated = 0; |
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18 static int sArgsUsed = 0; |
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19 |
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20 static bool sBuildingCommandLine = false; |
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21 |
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22 void AddToCommandLine(const char* inArgText) |
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23 { |
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24 if (sArgsUsed >= sArgsAllocated - 1) { |
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25 // realloc does not free the given pointer if allocation fails |
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26 char **temp = static_cast<char**>(realloc(sArgs, (sArgsAllocated + kArgsGrowSize) * sizeof(char*))); |
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27 if (!temp) |
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28 return; |
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29 sArgs = temp; |
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30 sArgsAllocated += kArgsGrowSize; |
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31 } |
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32 |
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33 char *temp2 = strdup(inArgText); |
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34 if (!temp2) |
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35 return; |
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36 |
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37 sArgs[sArgsUsed++] = temp2; |
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38 sArgs[sArgsUsed] = nullptr; |
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39 |
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40 return; |
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41 } |
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42 |
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43 void SetupMacCommandLine(int& argc, char**& argv, bool forRestart) |
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44 { |
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45 sArgs = static_cast<char **>(malloc(kArgsGrowSize * sizeof(char*))); |
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46 if (!sArgs) |
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47 return; |
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48 sArgsAllocated = kArgsGrowSize; |
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49 sArgs[0] = nullptr; |
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50 sArgsUsed = 0; |
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51 |
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52 sBuildingCommandLine = true; |
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53 |
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54 // Copy args, stripping anything we don't want. |
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55 for (int arg = 0; arg < argc; arg++) { |
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56 char* flag = argv[arg]; |
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57 // Don't pass on the psn (Process Serial Number) flag from the OS. |
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58 if (strncmp(flag, "-psn_", 5) != 0) |
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59 AddToCommandLine(flag); |
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60 } |
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61 |
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62 // Force processing of any pending Apple GetURL Events while we're building |
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63 // the command line. The handlers will append to the command line rather than |
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64 // act directly so there is no chance we'll process them during a XUL window |
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65 // load and accidentally open unnecessary windows and home pages. |
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66 ProcessPendingGetURLAppleEvents(); |
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67 |
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68 // If the process will be relaunched, the child should be in the foreground |
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69 // if the parent is in the foreground. This will be communicated in a |
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70 // command-line argument to the child. |
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71 if (forRestart) { |
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72 Boolean isForeground = false; |
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73 ProcessSerialNumber psnSelf, psnFront; |
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74 if (::GetCurrentProcess(&psnSelf) == noErr && |
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75 ::GetFrontProcess(&psnFront) == noErr && |
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76 ::SameProcess(&psnSelf, &psnFront, &isForeground) == noErr && |
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77 isForeground) { |
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78 AddToCommandLine("-foreground"); |
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79 } |
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80 } |
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81 |
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82 sBuildingCommandLine = false; |
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83 |
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84 argc = sArgsUsed; |
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85 argv = sArgs; |
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86 } |
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87 |
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88 bool AddURLToCurrentCommandLine(const char* aURL) |
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89 { |
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90 if (!sBuildingCommandLine) { |
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91 return false; |
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92 } |
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93 |
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94 AddToCommandLine("-url"); |
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95 AddToCommandLine(aURL); |
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96 |
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97 return true; |
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98 } |
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99 |
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100 } // namespace CommandLineServiceMac |