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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#import <UIKit/UIApplication.h>
#import <UIKit/UIScreen.h>
#import <UIKit/UIWindow.h>
#import <UIKit/UIViewController.h>
#include "nsAppShell.h"
#include "nsCOMPtr.h"
#include "nsDirectoryServiceDefs.h"
#include "nsString.h"
#include "nsIRollupListener.h"
#include "nsIWidget.h"
#include "nsThreadUtils.h"
#include "nsMemoryPressure.h"
#include "nsServiceManagerUtils.h"
nsAppShell* nsAppShell::gAppShell = NULL;
UIWindow* nsAppShell::gWindow = nil;
NSMutableArray* nsAppShell::gTopLevelViews = [[NSMutableArray alloc] init];
#define ALOG(args...) \
fprintf(stderr, args); \
fprintf(stderr, "\n")
// ViewController
@interface ViewController : UIViewController
@end
@implementation ViewController
- (void)loadView {
ALOG("[ViewController loadView]");
CGRect r = {{0, 0}, {100, 100}};
self.view = [[UIView alloc] initWithFrame:r];
[self.view setBackgroundColor:[UIColor lightGrayColor]];
// add all of the top level views as children
for (UIView* v in nsAppShell::gTopLevelViews) {
ALOG("[ViewController.view addSubView:%p]", v);
[self.view addSubview:v];
}
[nsAppShell::gTopLevelViews release];
nsAppShell::gTopLevelViews = nil;
}
@end
// AppShellDelegate
//
// Acts as a delegate for the UIApplication
@interface AppShellDelegate : NSObject <UIApplicationDelegate> {
}
@property(strong, nonatomic) UIWindow* window;
@end
@implementation AppShellDelegate
- (BOOL)application:(UIApplication*)application
didFinishLaunchingWithOptions:(NSDictionary*)launchOptions {
ALOG("[AppShellDelegate application:didFinishLaunchingWithOptions:]");
// We only create one window, since we can only display one window at
// a time anyway. Also, iOS 4 fails to display UIWindows if you
// create them before calling UIApplicationMain, so this makes more sense.
nsAppShell::gWindow =
[[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]] retain];
self.window = nsAppShell::gWindow;
self.window.rootViewController = [[ViewController alloc] init];
// just to make things more visible for now
nsAppShell::gWindow.backgroundColor = [UIColor blueColor];
[nsAppShell::gWindow makeKeyAndVisible];
return YES;
}
- (void)applicationWillTerminate:(UIApplication*)application {
ALOG("[AppShellDelegate applicationWillTerminate:]");
nsAppShell::gAppShell->WillTerminate();
}
- (void)applicationDidBecomeActive:(UIApplication*)application {
ALOG("[AppShellDelegate applicationDidBecomeActive:]");
}
- (void)applicationWillResignActive:(UIApplication*)application {
ALOG("[AppShellDelegate applicationWillResignActive:]");
}
- (void)applicationDidReceiveMemoryWarning:(UIApplication*)application {
ALOG("[AppShellDelegate applicationDidReceiveMemoryWarning:]");
NS_NotifyOfMemoryPressure(MemoryPressureState::LowMemory);
}
@end
// nsAppShell implementation
NS_IMETHODIMP
nsAppShell::ResumeNative(void) { return nsBaseAppShell::ResumeNative(); }
nsAppShell::nsAppShell()
: mAutoreleasePool(NULL),
mDelegate(NULL),
mCFRunLoop(NULL),
mCFRunLoopSource(NULL),
mTerminated(false),
mNotifiedWillTerminate(false) {
gAppShell = this;
}
nsAppShell::~nsAppShell() {
if (mAutoreleasePool) {
[mAutoreleasePool release];
mAutoreleasePool = NULL;
}
if (mCFRunLoop) {
if (mCFRunLoopSource) {
::CFRunLoopRemoveSource(mCFRunLoop, mCFRunLoopSource, kCFRunLoopCommonModes);
::CFRelease(mCFRunLoopSource);
}
::CFRelease(mCFRunLoop);
}
gAppShell = NULL;
}
// Init
//
// public
nsresult nsAppShell::Init() {
mAutoreleasePool = [[NSAutoreleasePool alloc] init];
// Add a CFRunLoopSource to the main native run loop. The source is
// responsible for interrupting the run loop when Gecko events are ready.
mCFRunLoop = [[NSRunLoop currentRunLoop] getCFRunLoop];
NS_ENSURE_STATE(mCFRunLoop);
::CFRetain(mCFRunLoop);
CFRunLoopSourceContext context;
bzero(&context, sizeof(context));
// context.version = 0;
context.info = this;
context.perform = ProcessGeckoEvents;
mCFRunLoopSource = ::CFRunLoopSourceCreate(kCFAllocatorDefault, 0, &context);
NS_ENSURE_STATE(mCFRunLoopSource);
::CFRunLoopAddSource(mCFRunLoop, mCFRunLoopSource, kCFRunLoopCommonModes);
return nsBaseAppShell::Init();
}
// ProcessGeckoEvents
//
// The "perform" target of mCFRunLoop, called when mCFRunLoopSource is
// signalled from ScheduleNativeEventCallback.
//
// protected static
void nsAppShell::ProcessGeckoEvents(void* aInfo) {
nsAppShell* self = static_cast<nsAppShell*>(aInfo);
self->NativeEventCallback();
self->Release();
}
// WillTerminate
//
// public
void nsAppShell::WillTerminate() {
mNotifiedWillTerminate = true;
if (mTerminated) return;
mTerminated = true;
// We won't get another chance to process events
NS_ProcessPendingEvents(NS_GetCurrentThread());
// Unless we call nsBaseAppShell::Exit() here, it might not get called
// at all.
nsBaseAppShell::Exit();
}
// ScheduleNativeEventCallback
//
// protected virtual
void nsAppShell::ScheduleNativeEventCallback() {
if (mTerminated) return;
NS_ADDREF_THIS();
// This will invoke ProcessGeckoEvents on the main thread.
::CFRunLoopSourceSignal(mCFRunLoopSource);
::CFRunLoopWakeUp(mCFRunLoop);
}
// ProcessNextNativeEvent
//
// protected virtual
bool nsAppShell::ProcessNextNativeEvent(bool aMayWait) {
if (mTerminated) return false;
NSString* currentMode = nil;
NSDate* waitUntil = nil;
if (aMayWait) waitUntil = [NSDate distantFuture];
NSRunLoop* currentRunLoop = [NSRunLoop currentRunLoop];
BOOL eventProcessed = NO;
do {
currentMode = [currentRunLoop currentMode];
if (!currentMode) currentMode = NSDefaultRunLoopMode;
if (aMayWait)
eventProcessed = [currentRunLoop runMode:currentMode beforeDate:waitUntil];
else
[currentRunLoop acceptInputForMode:currentMode beforeDate:waitUntil];
} while (eventProcessed && aMayWait);
return false;
}
// Run
//
// public
NS_IMETHODIMP
nsAppShell::Run(void) {
ALOG("nsAppShell::Run");
char argv[1][4] = {"app"};
UIApplicationMain(1, (char**)argv, nil, @"AppShellDelegate");
// UIApplicationMain doesn't exit. :-(
return NS_OK;
}
NS_IMETHODIMP
nsAppShell::Exit(void) {
if (mTerminated) return NS_OK;
mTerminated = true;
return nsBaseAppShell::Exit();
}
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