skia2/tools/sk_app/ios/Window_ios.mm

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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "tools/sk_app/ios/WindowContextFactory_ios.h"
#include "tools/sk_app/ios/Window_ios.h"
@interface WindowViewController : UIViewController
- (WindowViewController*)initWithWindow:(sk_app::Window_ios*)initWindow;
@end
///////////////////////////////////////////////////////////////////////////////
using sk_app::Window;
namespace sk_app {
Window_ios* Window_ios::gWindow = nullptr;
Window* Window::CreateNativeWindow(void*) {
// already have a window
if (Window_ios::MainWindow()) {
return nullptr;
}
Window_ios* window = new Window_ios();
if (!window->initWindow()) {
delete window;
return nullptr;
}
return window;
}
bool Window_ios::initWindow() {
// we already have a window
if (fWindow) {
return true;
}
// Create a view controller to track certain events
WindowViewController* viewController = [[WindowViewController alloc] initWithWindow:this];
if (nil == viewController) {
return false;
}
fWindow = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
if (nil == fWindow) {
[viewController release];
return false;
}
fWindow.backgroundColor = [UIColor whiteColor];
viewController.view = nil;
[fWindow setRootViewController:viewController];
[fWindow makeKeyAndVisible];
gWindow = this;
return true;
}
void Window_ios::closeWindow() {
if (nil != fWindow) {
gWindow = nullptr;
[fWindow release];
fWindow = nil;
}
}
bool Window_ios::attach(BackendType attachType) {
this->initWindow();
window_context_factory::IOSWindowInfo info;
info.fWindow = this;
info.fViewController = fWindow.rootViewController;
switch (attachType) {
#ifdef SK_METAL
case kMetal_BackendType:
fWindowContext = MakeMetalForIOS(info, fRequestedDisplayParams);
break;
#endif
#ifdef SK_GL
case kNativeGL_BackendType:
default:
fWindowContext = MakeGLForIOS(info, fRequestedDisplayParams);
break;
#else
default:
#endif
case kRaster_BackendType:
fWindowContext = MakeRasterForIOS(info, fRequestedDisplayParams);
break;
}
this->onBackendCreated();
return (SkToBool(fWindowContext));
}
void Window_ios::PaintWindow() {
gWindow->onPaint();
}
void Window_ios::onInval() {
// TODO: send expose event
}
} // namespace sk_app
///////////////////////////////////////////////////////////////////////////////
@implementation WindowViewController {
sk_app::Window_ios* fWindow;
}
- (WindowViewController*)initWithWindow:(sk_app::Window_ios *)initWindow {
fWindow = initWindow;
return self;
}
- (void)viewDidLoad {
// nothing yet
}
- (void)didReceiveMemoryWarning {
// nothing yet
}
- (void)viewWillTransitionToSize:(CGSize)size
withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator {
// handle rotations here
}
@end
///////////////////////////////////////////////////////////////////////////////
@implementation MainView {
sk_app::Window_ios* fWindow;
}
- (IBAction)panGestureAction:(UIGestureRecognizer*)sender {
CGPoint location = [sender locationInView:self];
switch (sender.state) {
case UIGestureRecognizerStateBegan:
fWindow->onMouse(location.x, location.y,
skui::InputState::kDown, skui::ModifierKey::kNone);
break;
case UIGestureRecognizerStateChanged:
fWindow->onMouse(location.x, location.y,
skui::InputState::kMove, skui::ModifierKey::kNone);
break;
case UIGestureRecognizerStateEnded:
fWindow->onMouse(location.x, location.y,
skui::InputState::kUp, skui::ModifierKey::kNone);
break;
case UIGestureRecognizerStateCancelled:
fWindow->onMouse(location.x, location.y,
skui::InputState::kUp, skui::ModifierKey::kNone);
break;
default:
break;
}
}
- (IBAction)tapGestureAction:(UIGestureRecognizer*)sender {
CGPoint location = [sender locationInView:self];
switch (sender.state) {
case UIGestureRecognizerStateEnded:
fWindow->onMouse(location.x, location.y,
skui::InputState::kDown, skui::ModifierKey::kNone);
fWindow->onMouse(location.x, location.y,
skui::InputState::kUp, skui::ModifierKey::kNone);
break;
default:
break;
}
}
- (IBAction)pinchGestureAction:(UIGestureRecognizer*)sender {
CGPoint location = [sender locationInView:self];
UIPinchGestureRecognizer* pinchGestureRecognizer = (UIPinchGestureRecognizer*) sender;
float scale = pinchGestureRecognizer.scale;
switch (sender.state) {
case UIGestureRecognizerStateBegan:
fWindow->onPinch(skui::InputState::kDown, scale, location.x, location.y);
break;
case UIGestureRecognizerStateChanged:
fWindow->onPinch(skui::InputState::kMove, scale, location.x, location.y);
break;
case UIGestureRecognizerStateEnded:
fWindow->onPinch(skui::InputState::kUp, scale, location.x, location.y);
break;
case UIGestureRecognizerStateCancelled:
fWindow->onPinch(skui::InputState::kUp, scale, location.x, location.y);
break;
default:
break;
}
}
- (IBAction)swipeRightGestureAction:(UIGestureRecognizer*)sender {
if (UIGestureRecognizerStateEnded == sender.state) {
fWindow->onFling(skui::InputState::kRight);
}
}
- (IBAction)swipeLeftGestureAction:(UIGestureRecognizer*)sender {
if (UIGestureRecognizerStateEnded == sender.state) {
fWindow->onFling(skui::InputState::kLeft);
}
}
- (MainView*)initWithWindow:(sk_app::Window_ios *)initWindow {
self = [super init];
UIPanGestureRecognizer* panGestureRecognizer = [[UIPanGestureRecognizer alloc] init];
panGestureRecognizer.maximumNumberOfTouches = 1;
[panGestureRecognizer addTarget:self action:@selector(panGestureAction:)];
[self addGestureRecognizer:panGestureRecognizer];
UITapGestureRecognizer* tapGestureRecognizer = [[UITapGestureRecognizer alloc] init];
[tapGestureRecognizer addTarget:self action:@selector(tapGestureAction:)];
[self addGestureRecognizer:tapGestureRecognizer];
UIPinchGestureRecognizer* pinchGestureRecognizer = [[UIPinchGestureRecognizer alloc] init];
[pinchGestureRecognizer addTarget:self action:@selector(pinchGestureAction:)];
[self addGestureRecognizer:pinchGestureRecognizer];
UISwipeGestureRecognizer* swipeRightGestureRecognizer = [[UISwipeGestureRecognizer alloc] init];
swipeRightGestureRecognizer.direction = UISwipeGestureRecognizerDirectionRight;
[swipeRightGestureRecognizer addTarget:self action:@selector(swipeRightGestureAction:)];
[self addGestureRecognizer:swipeRightGestureRecognizer];
UISwipeGestureRecognizer* swipeLeftGestureRecognizer = [[UISwipeGestureRecognizer alloc] init];
swipeLeftGestureRecognizer.direction = UISwipeGestureRecognizerDirectionLeft;
[swipeLeftGestureRecognizer addTarget:self action:@selector(swipeLeftGestureAction:)];
[self addGestureRecognizer:swipeLeftGestureRecognizer];
// disable pan recognition until swipes fail
[panGestureRecognizer requireGestureRecognizerToFail:swipeLeftGestureRecognizer];
[panGestureRecognizer requireGestureRecognizerToFail:swipeRightGestureRecognizer];
fWindow = initWindow;
return self;
}
@end