/*

Simple DirectMedia Layer

Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>

This software is provided 'as-is', without any express or implied

warranty. In no event will the authors be held liable for any damages

arising from the use of this software.

Permission is granted to anyone to use this software for any purpose,

including commercial applications, and to alter it and redistribute it

freely, subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must not

claim that you wrote the original software. If you use this software

in a product, an acknowledgment in the product documentation would be

appreciated but is not required.

2. Altered source versions must be plainly marked as such, and must not be

misrepresented as being the original software.

3. This notice may not be removed or altered from any source distribution.

*/

#include "../../SDL_internal.h"

#if SDL_VIDEO_DRIVER_UIKIT

#include "SDL_syswm.h"

#include "SDL_video.h"

#include "SDL_mouse.h"

#include "SDL_assert.h"

#include "SDL_hints.h"

#include "../SDL_sysvideo.h"

#include "../SDL_pixels_c.h"

#include "../../events/SDL_events_c.h"

#include "SDL_uikitvideo.h"

#include "SDL_uikitevents.h"

#include "SDL_uikitmodes.h"

#include "SDL_uikitwindow.h"

#import "SDL_uikitappdelegate.h"

#import "SDL_uikitopenglview.h"

#include <Foundation/Foundation.h>

- (void)layoutSubviews

{

[super layoutSubviews];

/* This seems to be needed on iOS 8, otherwise the window's frame is put in

* an unexpected position when the screen or device is rotated.

* FIXME: is there a better solution to that problem than this ugly hack?

*/

self.frame = self.screen.bounds;

}

@end

@implementation SDL_WindowData

@synthesize uiwindow;

@synthesize view;

@synthesize viewcontroller;

@end

static int SetupWindowData(_THIS, SDL_Window *window, SDL_uikitwindow *uiwindow, SDL_bool created)

{

SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);

/* Allocate the window data */

if (!data) {

return SDL_OutOfMemory();

}

data.uiwindow = uiwindow;

/* Fill in the SDL window with the window data */

{

int width = (int) frame.size.width;

int height = (int) frame.size.height;

/* Make sure the width/height are oriented correctly */

int temp = width;

width = height;

height = temp;

}

window->x = 0;

window->y = 0;

window->w = width;

window->h = height;

}

/* only one window on iOS, always shown */

window->flags &= ~SDL_WINDOW_HIDDEN;

/* SDL_WINDOW_BORDERLESS controls whether status bar is hidden.

* This is only set if the window is on the main screen. Other screens

* just force the window to have the borderless flag.

*/

window->flags |= SDL_WINDOW_INPUT_FOCUS; /* always has input focus */

/* This was setup earlier for our window, and in iOS 7 is controlled by the view, not the application

if ([UIApplication sharedApplication].statusBarHidden) {

window->flags |= SDL_WINDOW_BORDERLESS;

} else {

window->flags &= ~SDL_WINDOW_BORDERLESS;

}

*/

} else {

window->flags &= ~SDL_WINDOW_RESIZABLE; /* window is NEVER resizeable */

window->flags &= ~SDL_WINDOW_INPUT_FOCUS; /* never has input focus */

window->flags |= SDL_WINDOW_BORDERLESS; /* never has a status bar. */

}

/* The View Controller will handle rotating the view when the

* device orientation changes. This will trigger resize events, if

* appropriate.

*/

data.viewcontroller = [[SDL_uikitviewcontroller alloc] initWithSDLWindow:window];

data.viewcontroller.title = @"SDL App"; /* !!! FIXME: hook up SDL_SetWindowTitle() */

return 0;

}

int

UIKit_CreateWindow(_THIS, SDL_Window *window)

{

@autoreleasepool {

SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);

SDL_DisplayData *data = (__bridge SDL_DisplayData *) display->driverdata;

const BOOL external = ([UIScreen mainScreen] != data.uiscreen);

const CGSize origsize = [[data.uiscreen currentMode] size];

/* SDL currently puts this window at the start of display's linked list. We rely on this. */

SDL_assert(_this->windows == window);

/* We currently only handle a single window per display on iOS */

if (window->next != NULL) {

return SDL_SetError("Only one window allowed per display.");

/* If monitor has a resolution of 0x0 (hasn't been explicitly set by the

* user, so it's in standby), try to force the display to a resolution

* that most closely matches the desired window size.

*/

if ((origsize.width == 0.0f) && (origsize.height == 0.0f)) {

if (display->num_display_modes == 0) {

_this->GetDisplayModes(_this, display);

}

int i;

const SDL_DisplayMode *bestmode = NULL;

for (i = display->num_display_modes; i >= 0; i--) {

const SDL_DisplayMode *mode = &display->display_modes[i];

if ((mode->w >= window->w) && (mode->h >= window->h))

bestmode = mode;

}

SDL_DisplayModeData *modedata = (__bridge SDL_DisplayModeData *)bestmode->driverdata;

[data.uiscreen setCurrentMode:modedata.uiscreenmode];

/* desktop_mode doesn't change here (the higher level will

* use it to set all the screens back to their defaults

* upon window destruction, SDL_Quit(), etc.

*/

display->current_mode = *bestmode;

}

}

NSUInteger orientations = UIKit_GetSupportedOrientations(window);

UIApplication *app = [UIApplication sharedApplication];

}

/* Make sure the screen is using a supported orientation. We do it

* now so that SetupWindowData assigns the properly oriented width

* and height to the window's w and h variables.

*/

if (UIKit_IsDisplayLandscape(data.uiscreen)) {

if (!(orientations & UIInterfaceOrientationMaskLandscape)) {

[app setStatusBarOrientation:UIInterfaceOrientationPortrait animated:NO];

} else {

if (!(orientations & (UIInterfaceOrientationMaskPortrait|UIInterfaceOrientationMaskPortraitUpsideDown))) {

UIInterfaceOrientation orient = UIInterfaceOrientationLandscapeLeft;

if (orientations & UIInterfaceOrientationMaskLandscapeRight) {

orient = UIInterfaceOrientationLandscapeRight;

}

[app setStatusBarOrientation:orient animated:NO];

}

}

}

/* ignore the size user requested, and make a fullscreen window */

/* !!! FIXME: can we have a smaller view? */

/* put the window on an external display if appropriate. This implicitly

* does [uiwindow setframe:[uiscreen bounds]], so don't do it on the

* main display, where we land by default, as that would eat the

* status bar real estate.

*/

if (external) {

if (SetupWindowData(_this, window, uiwindow, SDL_TRUE) < 0) {

return -1;

}

}

return 1;

}

void

UIKit_ShowWindow(_THIS, SDL_Window * window)

{

[uiwindow makeKeyAndVisible];

}

}

void

UIKit_HideWindow(_THIS, SDL_Window * window)

{

uiwindow.hidden = YES;

}

}

void

UIKit_RaiseWindow(_THIS, SDL_Window * window)

{

/* We don't currently offer a concept of "raising" the SDL window, since

* we only allow one per display, in the iOS fashion.

* However, we use this entry point to rebind the context to the view

* during OnWindowRestored processing.

*/

_this->GL_MakeCurrent(_this, _this->current_glwin, _this->current_glctx);

}

static void

UIKit_UpdateWindowBorder(_THIS, SDL_Window * window)

SDL_WindowData *windowdata = (__bridge SDL_WindowData *) window->driverdata;

SDL_uikitviewcontroller *viewcontroller = windowdata.viewcontroller;

if (window->flags & (SDL_WINDOW_FULLSCREEN | SDL_WINDOW_BORDERLESS)) {

[UIApplication sharedApplication].statusBarHidden = YES;

} else {

[UIApplication sharedApplication].statusBarHidden = NO;

}

/* iOS 7+ won't update the status bar until we tell it to. */

if ([viewcontroller respondsToSelector:@selector(setNeedsStatusBarAppearanceUpdate)]) {

[viewcontroller setNeedsStatusBarAppearanceUpdate];

}

}

windowdata.view.frame = frame;

[windowdata.view setNeedsLayout];

[windowdata.view layoutIfNeeded];

/* We can pick either width or height here and we'll rotate the

*/

if (window->w >= window->h) {

}

}

void

UIKit_SetWindowBordered(_THIS, SDL_Window * window, SDL_bool bordered)

{

@autoreleasepool {

UIKit_UpdateWindowBorder(_this, window);

}

}

void

UIKit_SetWindowFullscreen(_THIS, SDL_Window * window, SDL_VideoDisplay * display, SDL_bool fullscreen)

{

@autoreleasepool {

UIKit_UpdateWindowBorder(_this, window);

}

}

void

UIKit_DestroyWindow(_THIS, SDL_Window * window)

{

if (window->driverdata != NULL) {

CFRelease(window->driverdata);

}

SDL_bool

UIKit_GetWindowWMInfo(_THIS, SDL_Window * window, SDL_SysWMinfo * info)

{

if (info->version.major <= SDL_MAJOR_VERSION) {

info->subsystem = SDL_SYSWM_UIKIT;

info->info.uikit.window = uiwindow;

return SDL_TRUE;

} else {

SDL_SetError("Application not compiled with SDL %d.%d\n",

SDL_MAJOR_VERSION, SDL_MINOR_VERSION);

return SDL_FALSE;

}

}

}

NSUInteger

UIKit_GetSupportedOrientations(SDL_Window * window)

{

const char *hint = SDL_GetHint(SDL_HINT_ORIENTATIONS);

NSUInteger orientationMask = 0;

@autoreleasepool {

if (hint != NULL) {

NSArray *orientations = [@(hint) componentsSeparatedByString:@" "];

if ([orientations containsObject:@"LandscapeLeft"]) {

orientationMask |= UIInterfaceOrientationMaskLandscapeLeft;

}

if ([orientations containsObject:@"LandscapeRight"]) {

orientationMask |= UIInterfaceOrientationMaskLandscapeRight;

}

if ([orientations containsObject:@"Portrait"]) {

orientationMask |= UIInterfaceOrientationMaskPortrait;

}

if ([orientations containsObject:@"PortraitUpsideDown"]) {

orientationMask |= UIInterfaceOrientationMaskPortraitUpsideDown;

}

}

if (orientationMask == 0 && (window->flags & SDL_WINDOW_RESIZABLE)) {

/* any orientation is okay. */

orientationMask = UIInterfaceOrientationMaskAll;

}

if (orientationMask == 0) {

if (window->w >= window->h) {

orientationMask |= UIInterfaceOrientationMaskLandscape;

}

if (window->h >= window->w) {

orientationMask |= (UIInterfaceOrientationMaskPortrait | UIInterfaceOrientationMaskPortraitUpsideDown);

}

}

/* Don't allow upside-down orientation on the phone, so answering calls is in the natural orientation */

if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {

orientationMask &= ~UIInterfaceOrientationMaskPortraitUpsideDown;

}

}

return orientationMask;

}

int

SDL_iPhoneSetAnimationCallback(SDL_Window * window, int interval, void (*callback)(void*), void *callbackParam)

{

@autoreleasepool {

SDL_WindowData *data = window ? (__bridge SDL_WindowData *)window->driverdata : nil;

if (!data || !data.view) {

return SDL_SetError("Invalid window or view not set");

}

}

return 0;

}

#endif /* SDL_VIDEO_DRIVER_UIKIT */

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