Application Shell services...

xpfe/appshell/src/nsAppShellService.cpp

@@ -0,0 +1,278 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "License"); you may not use this file except in
+ * compliance with the License.  You may obtain a copy of the License at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * The Original Code is Mozilla Communicator client code.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation.  Portions created by Netscape are Copyright (C) 1998
+ * Netscape Communications Corporation.  All Rights Reserved.
+ */
+
+
+#include "nsIAppShellService.h"
+#include "nsISupportsArray.h"
+#include "nsRepository.h"
+#include "nsIURL.h"
+
+#include "nsIAppShell.h"
+#include "nsIWidget.h"
+#include "nsWebShellWindow.h"
+
+#include "nsWidgetsCID.h"
+
+/* Define Class IDs */
+static NS_DEFINE_IID(kAppShellCID,         NS_APPSHELL_CID);
+
+/* Define Interface IDs */
+
+static NS_DEFINE_IID(kIFactoryIID,         NS_IFACTORY_IID);
+static NS_DEFINE_IID(kIAppShellServiceIID, NS_IAPPSHELL_SERVICE_IID);
+static NS_DEFINE_IID(kIAppShellIID,        NS_IAPPSHELL_IID);
+
+
+
+class nsAppShellService : public nsIAppShellService
+{
+public:
+  nsAppShellService(void);
+
+  NS_DECL_ISUPPORTS
+
+  NS_IMETHOD Initialize(void);
+  NS_IMETHOD Run(void);
+  NS_IMETHOD Shutdown(void);
+  NS_IMETHOD CreateTopLevelWindow(nsIURL* aUrl, nsIWidget*& aResult);
+  NS_IMETHOD CloseTopLevelWindow(nsIWidget* aWindow);
+
+
+protected:
+  virtual ~nsAppShellService();
+
+  nsIAppShell* mAppShell;
+
+  nsISupportsArray* mWindowList;
+};
+
+
+nsAppShellService::nsAppShellService()
+{
+  NS_INIT_REFCNT();
+
+  mAppShell     = nsnull;
+  mWindowList   = nsnull;
+}
+
+nsAppShellService::~nsAppShellService()
+{
+  NS_IF_RELEASE(mAppShell);
+  NS_IF_RELEASE(mWindowList);
+}
+
+
+/*
+ * Implement the nsISupports methods...
+ */
+NS_IMPL_ISUPPORTS(nsAppShellService, kIAppShellServiceIID);
+
+
+NS_IMETHODIMP
+nsAppShellService::Initialize(void)
+{
+  nsresult rv;
+
+  rv = NS_NewISupportsArray(&mWindowList);
+  if (NS_FAILED(rv)) {
+    goto done;
+  }
+
+  // Create widget application shell
+  rv = nsRepository::CreateInstance(kAppShellCID, nsnull, kIAppShellIID,
+                                    (void**)&mAppShell);
+  if (NS_FAILED(rv)) {
+    goto done;
+  }
+
+  rv = mAppShell->Create(0, nsnull);
+
+done:
+  return rv;
+}
+
+
+NS_IMETHODIMP
+nsAppShellService::Run(void)
+{
+  return mAppShell->Run();
+}
+
+NS_IMETHODIMP
+nsAppShellService::Shutdown(void)
+{
+  return NS_OK;
+}
+
+/*
+ * Create a new top level window and display the given URL within it...
+ */
+NS_IMETHODIMP
+nsAppShellService::CreateTopLevelWindow(nsIURL* aUrl, nsIWidget*& aResult)
+{
+  nsresult rv;
+  nsWebShellWindow* window;
+
+  window = new nsWebShellWindow();
+  if (nsnull == window) {
+    rv = NS_ERROR_OUT_OF_MEMORY;
+  } else {
+    rv = window->Initialize(mAppShell, aUrl);
+    if (NS_SUCCEEDED(rv)) {
+      mWindowList->AppendElement(window);
+      aResult = window->GetWidget();
+    }
+  }
+
+  return rv;
+}
+
+
+NS_IMETHODIMP
+nsAppShellService::CloseTopLevelWindow(nsIWidget* aWindow)
+{
+  nsresult rv = NS_OK;
+
+  nsWebShellWindow* window;
+  void* data;
+
+  // Get the nsWebShellWindow from the nsIWidget...
+  aWindow->GetClientData(data);
+  if (nsnull != data) {
+    window = (nsWebShellWindow*)data;
+  }
+
+  if (nsnull != data) {
+    PRBool bFound;
+
+    bFound = mWindowList->RemoveElement(window);
+
+  }
+
+  if (0 == mWindowList->Count()) {
+    mAppShell->Exit();
+  }
+
+  return rv;
+}
+
+NS_EXPORT nsresult NS_NewAppShellService(nsIAppShellService** aResult)
+{
+  if (nsnull == aResult) {
+    return NS_ERROR_NULL_POINTER;
+  }
+
+  *aResult = new nsAppShellService();
+  if (nsnull == *aResult) {
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+
+  NS_ADDREF(*aResult);
+  return NS_OK;
+}
+
+
+
+//----------------------------------------------------------------------
+
+// Factory code for creating nsAppShellService's
+
+class nsAppShellServiceFactory : public nsIFactory
+{
+public:
+  nsAppShellServiceFactory();
+  NS_DECL_ISUPPORTS
+
+  // nsIFactory methods
+  NS_IMETHOD CreateInstance(nsISupports *aOuter,
+                            const nsIID &aIID,
+                            void **aResult);
+
+  NS_IMETHOD LockFactory(PRBool aLock);
+
+protected:
+  virtual ~nsAppShellServiceFactory();
+};
+
+
+nsAppShellServiceFactory::nsAppShellServiceFactory()
+{
+  NS_INIT_REFCNT();
+}
+
+nsAppShellServiceFactory::~nsAppShellServiceFactory()
+{
+  NS_ASSERTION(mRefCnt == 0, "non-zero refcnt at destruction");
+}
+
+NS_IMPL_ISUPPORTS(nsAppShellServiceFactory, kIFactoryIID);
+
+
+nsresult
+nsAppShellServiceFactory::CreateInstance(nsISupports *aOuter,
+                                  const nsIID &aIID,
+                                  void **aResult)
+{
+  nsresult rv;
+  nsAppShellService* inst;
+
+  if (aResult == NULL) {
+    return NS_ERROR_NULL_POINTER;
+  }
+  *aResult = NULL;
+  if (nsnull != aOuter) {
+    rv = NS_ERROR_NO_AGGREGATION;
+    goto done;
+  }
+
+  NS_NEWXPCOM(inst, nsAppShellService);
+  if (inst == NULL) {
+    rv = NS_ERROR_OUT_OF_MEMORY;
+    goto done;
+  }
+
+  NS_ADDREF(inst);
+  rv = inst->QueryInterface(aIID, aResult);
+  NS_RELEASE(inst);
+
+done:
+  return rv;
+}
+
+nsresult
+nsAppShellServiceFactory::LockFactory(PRBool aLock)
+{
+  // Not implemented in simplest case.
+  return NS_OK;
+}
+
+extern "C" NS_APPSHELL nsresult
+NS_NewAppShellServiceFactory(nsIFactory** aFactory)
+{
+  nsresult rv = NS_OK;
+  nsIFactory* inst = new nsAppShellServiceFactory();
+  if (nsnull == inst) {
+    rv = NS_ERROR_OUT_OF_MEMORY;
+  }
+  else {
+    NS_ADDREF(inst);
+  }
+  *aFactory = inst;
+  return rv;
+}