ipc/testshell/TestShellParent.cpp

   1 /* ***** BEGIN LICENSE BLOCK *****
   2  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   3  *
   4  * The contents of this file are subject to the Mozilla Public License Version
   5  * 1.1 (the "License"); you may not use this file except in compliance with
   6  * the License. You may obtain a copy of the License at
   7  * http://www.mozilla.org/MPL/
   8  *
   9  * Software distributed under the License is distributed on an "AS IS" basis,
  10  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  11  * for the specific language governing rights and limitations under the
  12  * License.
  13  *
  14  * The Original Code is Mozilla IPCShell.
  15  *
  16  * The Initial Developer of the Original Code is
  17  *   Ben Turner <bent.mozilla@gmail.com>.
  18  * Portions created by the Initial Developer are Copyright (C) 2009
  19  * the Initial Developer. All Rights Reserved.
  20  *
  21  * Contributor(s):
  22  *
  23  * Alternatively, the contents of this file may be used under the terms of
  24  * either the GNU General Public License Version 2 or later (the "GPL"), or
  25  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  26  * in which case the provisions of the GPL or the LGPL are applicable instead
  27  * of those above. If you wish to allow use of your version of this file only
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  32  * the provisions above, a recipient may use your version of this file under
  33  * the terms of any one of the MPL, the GPL or the LGPL.
  34  *
  35  * ***** END LICENSE BLOCK ***** */
  36
  37 #include "TestShellParent.h"
  38 #include "mozilla/dom/ContentParent.h"
  39 #include "mozilla/jsipc/ContextWrapperParent.h"
  40
  41 #include "nsAutoPtr.h"
  42
  43 using mozilla::ipc::TestShellParent;
  44 using mozilla::ipc::TestShellCommandParent;
  45 using mozilla::ipc::PTestShellCommandParent;
  46 using mozilla::dom::ContentParent;
  47 using mozilla::jsipc::PContextWrapperParent;
  48 using mozilla::jsipc::ContextWrapperParent;
  49
  50 PTestShellCommandParent*
  51 TestShellParent::AllocPTestShellCommand(const nsString& aCommand)
  52 {
  53   return new TestShellCommandParent();
  54 }
  55
  56 bool
  57 TestShellParent::DeallocPTestShellCommand(PTestShellCommandParent* aActor)
  58 {
  59   delete aActor;
  60   return true;
  61 }
  62
  63 bool
  64 TestShellParent::CommandDone(TestShellCommandParent* command,
  65                              const nsString& aResponse)
  66 {
  67   // XXX what should happen if the callback fails?
  68   /*JSBool ok = */command->RunCallback(aResponse);
  69   command->ReleaseCallback();
  70
  71   return true;
  72 }
  73
  74 PContextWrapperParent*
  75 TestShellParent::AllocPContextWrapper()
  76 {
  77     ContentParent* cpp = static_cast<ContentParent*>(Manager());
  78     return new ContextWrapperParent(cpp);
  79 }
  80
  81 bool
  82 TestShellParent::DeallocPContextWrapper(PContextWrapperParent* actor)
  83 {
  84     delete actor;
  85     return true;
  86 }
  87
  88 JSBool
  89 TestShellParent::GetGlobalJSObject(JSContext* cx, JSObject** globalp)
  90 {
  91     // TODO Unify this code with TabParent::GetGlobalJSObject.
  92     InfallibleTArray<PContextWrapperParent*> cwps(1);
  93     ManagedPContextWrapperParent(cwps);
  94     if (cwps.Length() < 1)
  95         return JS_FALSE;
  96     NS_ASSERTION(cwps.Length() == 1, "More than one PContextWrapper?");
  97     ContextWrapperParent* cwp = static_cast<ContextWrapperParent*>(cwps[0]);
  98     return cwp->GetGlobalJSObject(cx, globalp);
  99 }
 100
 101 JSBool
 102 TestShellCommandParent::SetCallback(JSContext* aCx,
 103                                     jsval aCallback)
 104 {
 105   if (!mCallback.Hold(aCx)) {
 106     return JS_FALSE;
 107   }
 108
 109   mCallback = aCallback;
 110   mCx = aCx;
 111
 112   return JS_TRUE;
 113 }
 114
 115 JSBool
 116 TestShellCommandParent::RunCallback(const nsString& aResponse)
 117 {
 118   NS_ENSURE_TRUE(mCallback != JSVAL_NULL && mCx, JS_FALSE);
 119
 120   JSAutoRequest ar(mCx);
 121
 122   JSObject* global = JS_GetGlobalObject(mCx);
 123   NS_ENSURE_TRUE(global, JS_FALSE);
 124
 125   JSAutoEnterCompartment ac;
 126   if (!ac.enter(mCx, global)) {
 127     NS_ERROR("Failed to enter compartment!");
 128     return false;
 129   }
 130
 131   JSString* str = JS_NewUCStringCopyN(mCx, aResponse.get(), aResponse.Length());
 132   NS_ENSURE_TRUE(str, JS_FALSE);
 133
 134   jsval argv[] = { STRING_TO_JSVAL(str) };
 135   int argc = NS_ARRAY_LENGTH(argv);
 136
 137   jsval rval;
 138   JSBool ok = JS_CallFunctionValue(mCx, global, mCallback, argc, argv, &rval);
 139   NS_ENSURE_TRUE(ok, JS_FALSE);
 140
 141   return JS_TRUE;
 142 }
 143
 144 void
 145 TestShellCommandParent::ReleaseCallback()
 146 {
 147   mCallback.Release();
 148 }