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1 /* -*- Mode: c++; tab-width: 2; indent-tabs-mode: nil; -*- */ |
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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 #ifndef nsAppShellSingleton_h__ |
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7 #define nsAppShellSingleton_h__ |
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8 |
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9 /** |
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10 * This file is designed to be included into the file that provides the |
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11 * nsIModule implementation for a particular widget toolkit. |
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12 * |
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13 * The following functions are defined: |
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14 * nsAppShellInit |
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15 * nsAppShellShutdown |
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16 * nsAppShellConstructor |
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17 * |
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18 * The nsAppShellInit function is designed to be used as a module constructor. |
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19 * If you already have a module constructor, then call nsAppShellInit from your |
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20 * module constructor. |
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21 * |
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22 * The nsAppShellShutdown function is designed to be used as a module |
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23 * destructor. If you already have a module destructor, then call |
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24 * nsAppShellShutdown from your module destructor. |
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25 * |
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26 * The nsAppShellConstructor function is designed to be used as a factory |
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27 * method for the nsAppShell class. |
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28 */ |
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29 |
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30 #include "nsXULAppAPI.h" |
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31 #if defined(MOZ_METRO) && defined(XP_WIN) |
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32 #include "winrt/MetroAppShell.h" |
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33 #endif |
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34 |
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35 static nsIAppShell *sAppShell; |
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36 |
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37 static nsresult |
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38 nsAppShellInit() |
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39 { |
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40 NS_ASSERTION(!sAppShell, "already initialized"); |
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41 |
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42 #if !defined(MOZ_METRO) || !defined(XP_WIN) |
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43 sAppShell = new nsAppShell(); |
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44 #else |
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45 if (XRE_GetWindowsEnvironment() == WindowsEnvironmentType_Metro) { |
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46 sAppShell = new MetroAppShell(); |
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47 } else { |
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48 sAppShell = new nsAppShell(); |
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49 } |
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50 #endif |
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51 if (!sAppShell) |
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52 return NS_ERROR_OUT_OF_MEMORY; |
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53 NS_ADDREF(sAppShell); |
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54 |
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55 nsresult rv; |
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56 #if !defined(MOZ_METRO) || !defined(XP_WIN) |
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57 rv = static_cast<nsAppShell*>(sAppShell)->Init(); |
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58 #else |
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59 if (XRE_GetWindowsEnvironment() == WindowsEnvironmentType_Metro) { |
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60 rv = static_cast<MetroAppShell*>(sAppShell)->Init(); |
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61 } else { |
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62 rv = static_cast<nsAppShell*>(sAppShell)->Init(); |
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63 } |
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64 #endif |
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65 if (NS_FAILED(rv)) { |
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66 NS_RELEASE(sAppShell); |
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67 return rv; |
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68 } |
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69 |
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70 return NS_OK; |
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71 } |
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72 |
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73 static void |
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74 nsAppShellShutdown() |
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75 { |
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76 NS_RELEASE(sAppShell); |
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77 } |
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78 |
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79 static nsresult |
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80 nsAppShellConstructor(nsISupports *outer, const nsIID &iid, void **result) |
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81 { |
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82 NS_ENSURE_TRUE(!outer, NS_ERROR_NO_AGGREGATION); |
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83 NS_ENSURE_TRUE(sAppShell, NS_ERROR_NOT_INITIALIZED); |
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84 |
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85 return sAppShell->QueryInterface(iid, result); |
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86 } |
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87 |
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88 #endif // nsAppShellSingleton_h__ |