gecko-dev/toolkit/xre/nsNativeAppSupportCocoa.mm
2011-10-17 10:59:28 -04:00

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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/MPL/
*
* 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 the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Steven Michaud <smichaud@pobox.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsString.h"
#import <CoreServices/CoreServices.h>
#import <Cocoa/Cocoa.h>
#include "nsCOMPtr.h"
#include "nsObjCExceptions.h"
#include "nsNativeAppSupportBase.h"
#include "nsIAppShellService.h"
#include "nsIAppStartup.h"
#include "nsIBaseWindow.h"
#include "nsICommandLineRunner.h"
#include "nsIDOMWindow.h"
#include "nsIDocShellTreeItem.h"
#include "nsIDocShellTreeOwner.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIObserver.h"
#include "nsIServiceManager.h"
#include "nsIWebNavigation.h"
#include "nsIWidget.h"
#include "nsIWindowMediator.h"
nsresult
GetNativeWindowPointerFromDOMWindow(nsIDOMWindow *a_window, NSWindow **a_nativeWindow)
{
*a_nativeWindow = nil;
if (!a_window)
return NS_ERROR_INVALID_ARG;
nsCOMPtr<nsIWebNavigation> mruWebNav(do_GetInterface(a_window));
if (mruWebNav) {
nsCOMPtr<nsIDocShellTreeItem> mruTreeItem(do_QueryInterface(mruWebNav));
nsCOMPtr<nsIDocShellTreeOwner> mruTreeOwner = nsnull;
mruTreeItem->GetTreeOwner(getter_AddRefs(mruTreeOwner));
if(mruTreeOwner) {
nsCOMPtr<nsIBaseWindow> mruBaseWindow(do_QueryInterface(mruTreeOwner));
if (mruBaseWindow) {
nsCOMPtr<nsIWidget> mruWidget = nsnull;
mruBaseWindow->GetMainWidget(getter_AddRefs(mruWidget));
if (mruWidget) {
*a_nativeWindow = (NSWindow*)mruWidget->GetNativeData(NS_NATIVE_WINDOW);
}
}
}
}
return NS_OK;
}
class nsNativeAppSupportCocoa : public nsNativeAppSupportBase
{
public:
nsNativeAppSupportCocoa() :
mCanShowUI(false) { }
NS_IMETHOD Start(bool* aRetVal);
NS_IMETHOD ReOpen();
NS_IMETHOD Enable();
private:
bool mCanShowUI;
};
NS_IMETHODIMP
nsNativeAppSupportCocoa::Enable()
{
mCanShowUI = true;
return NS_OK;
}
NS_IMETHODIMP nsNativeAppSupportCocoa::Start(bool *_retval)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
SInt32 response = 0;
OSErr err = ::Gestalt (gestaltSystemVersion, &response);
response &= 0xFFFF; // The system version is in the low order word
// Check that the OS version is supported, if not return false,
// which will make the browser quit. In principle we could display an
// alert here. But the alert's message and buttons would require custom
// localization. So (for now at least) we just log an English message
// to the console before quitting.
#ifdef __LP64__
SInt32 minimumOS = 0x00001060;
#else
SInt32 minimumOS = 0x00001050;
#endif
if ((err != noErr) || response < minimumOS) {
NSLog(@"Minimum OS version requirement not met!");
return false;
}
*_retval = true;
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
NS_IMETHODIMP
nsNativeAppSupportCocoa::ReOpen()
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
if (!mCanShowUI)
return NS_ERROR_FAILURE;
bool haveNonMiniaturized = false;
bool haveOpenWindows = false;
bool done = false;
nsCOMPtr<nsIWindowMediator>
wm(do_GetService(NS_WINDOWMEDIATOR_CONTRACTID));
if (!wm) {
return NS_ERROR_FAILURE;
}
else {
nsCOMPtr<nsISimpleEnumerator> windowList;
wm->GetXULWindowEnumerator(nsnull, getter_AddRefs(windowList));
bool more;
windowList->HasMoreElements(&more);
while (more) {
nsCOMPtr<nsISupports> nextWindow = nsnull;
windowList->GetNext(getter_AddRefs(nextWindow));
nsCOMPtr<nsIBaseWindow> baseWindow(do_QueryInterface(nextWindow));
if (!baseWindow) {
windowList->HasMoreElements(&more);
continue;
}
else {
haveOpenWindows = true;
}
nsCOMPtr<nsIWidget> widget = nsnull;
baseWindow->GetMainWidget(getter_AddRefs(widget));
if (!widget) {
windowList->HasMoreElements(&more);
continue;
}
NSWindow *cocoaWindow = (NSWindow*)widget->GetNativeData(NS_NATIVE_WINDOW);
if (![cocoaWindow isMiniaturized]) {
haveNonMiniaturized = true;
break; //have un-minimized windows, nothing to do
}
windowList->HasMoreElements(&more);
} // end while
if (!haveNonMiniaturized) {
// Deminiaturize the most recenty used window
nsCOMPtr<nsIDOMWindow> mru;
wm->GetMostRecentWindow(nsnull, getter_AddRefs(mru));
if (mru) {
NSWindow *cocoaMru = nil;
GetNativeWindowPointerFromDOMWindow(mru, &cocoaMru);
if (cocoaMru) {
[cocoaMru deminiaturize:nil];
done = true;
}
}
} // end if have non miniaturized
if (!haveOpenWindows && !done) {
char* argv[] = { nsnull };
// use an empty command line to make the right kind(s) of window open
nsCOMPtr<nsICommandLineRunner> cmdLine
(do_CreateInstance("@mozilla.org/toolkit/command-line;1"));
NS_ENSURE_TRUE(cmdLine, NS_ERROR_FAILURE);
nsresult rv;
rv = cmdLine->Init(0, argv, nsnull,
nsICommandLine::STATE_REMOTE_EXPLICIT);
NS_ENSURE_SUCCESS(rv, rv);
return cmdLine->Run();
}
} // got window mediator
return NS_OK;
NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
}
#pragma mark -
// Create and return an instance of class nsNativeAppSupportCocoa.
nsresult NS_CreateNativeAppSupport(nsINativeAppSupport**aResult)
{
*aResult = new nsNativeAppSupportCocoa;
if (!*aResult) return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(*aResult);
return NS_OK;
}