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/*
* Copyright 2019 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkUtils.h"
#include "WindowContextFactory_mac.h"
#include "Window_mac.h"
@interface MainView : NSView
- (MainView*)initWithWindow:(sk_app::Window*)initWindow;
@end
@interface WindowDelegate : NSObject<NSWindowDelegate>
- (WindowDelegate*)initWithWindow:(sk_app::Window*)initWindow;
@end
///////////////////////////////////////////////////////////////////////////////
using sk_app::Window;
namespace sk_app {
static int gWindowCount = 0;
Window* Window::CreateNativeWindow(void*) {
Window_mac* window = new Window_mac();
if (!window->initWindow()) {
delete window;
return nullptr;
}
++gWindowCount;
return window;
}
bool Window_mac::initWindow() {
if (fRequestedDisplayParams.fMSAASampleCount != fMSAASampleCount) {
this->closeWindow();
}
// we already have a window
if (fWindow) {
return true;
}
constexpr int initialWidth = 1280;
constexpr int initialHeight = 960;
NSUInteger windowStyle = (NSTitledWindowMask | NSClosableWindowMask | NSResizableWindowMask |
NSMiniaturizableWindowMask);
NSRect windowRect = NSMakeRect(100, 100, initialWidth, initialHeight);
fWindow = [[NSWindow alloc] initWithContentRect:windowRect styleMask:windowStyle
backing:NSBackingStoreBuffered defer:NO];
if (nil == fWindow) {
return false;
}
WindowDelegate* delegate = [[WindowDelegate alloc] initWithWindow:this];
[fWindow setDelegate:delegate];
[delegate release];
// create view
MainView* view = [[[MainView alloc] initWithFrame:NSMakeRect(0, 0, 1, 1)] initWithWindow:this];
if (nil == view) {
[fWindow release];
fWindow = nil;
return false;
}
// attach view to window
[fWindow setContentView:view];
return true;
}
void Window_mac::closeWindow() {
[fWindow release];
fWindow = nil;
}
void Window_mac::setTitle(const char* title) {
NSString *titleString = [NSString stringWithCString:title encoding:NSUTF8StringEncoding];
[fWindow setTitle:titleString];
}
void Window_mac::show() {
[NSApp activateIgnoringOtherApps:YES];
[fWindow makeKeyAndOrderFront:NSApp];
}
bool Window_mac::attach(BackendType attachType) {
this->initWindow();
window_context_factory::MacWindowInfo info;
info.fMainView = this->view();
switch (attachType) {
case kRaster_BackendType:
fWindowContext = NewRasterForMac(info, fRequestedDisplayParams);
break;
case kNativeGL_BackendType:
default:
fWindowContext = NewGLForMac(info, fRequestedDisplayParams);
break;
}
this->onBackendCreated();
return (SkToBool(fWindowContext));
}
void Window_mac::onInval() {
[[fWindow contentView] setNeedsDisplay:YES];
// MacOS already queues a single drawRect event for multiple invalidations
// so we don't need to use our invalidation method (and it can mess things up
// if for some reason MacOS skips a drawRect when we need one).
this->markInvalProcessed();
}
} // namespace sk_app
///////////////////////////////////////////////////////////////////////////////
@implementation WindowDelegate {
sk_app::Window* fWindow;
}
- (WindowDelegate*)initWithWindow:(sk_app::Window *)initWindow {
fWindow = initWindow;
return self;
}
- (void)windowDidResize:(NSNotification *)notification {
sk_app::Window_mac* macWindow = reinterpret_cast<sk_app::Window_mac*>(fWindow);
const NSRect mainRect = [macWindow->view() bounds];
fWindow->onResize(mainRect.size.width, mainRect.size.height);
}
- (BOOL)windowShouldClose:(NSWindow*)sender {
--sk_app::gWindowCount;
if (sk_app::gWindowCount < 1) {
[NSApp terminate:self];
}
reinterpret_cast<sk_app::Window_mac*>(fWindow)->closeWindow();
return FALSE;
}
@end
///////////////////////////////////////////////////////////////////////////////
@implementation MainView {
sk_app::Window* fWindow;
}
- (MainView*)initWithWindow:(sk_app::Window *)initWindow {
fWindow = initWindow;
return self;
}
- (BOOL)isOpaque {
return YES;
}
- (BOOL)canBecomeKeyView {
return YES;
}
- (BOOL)acceptsFirstResponder {
return YES;
}
- (void)drawRect:(NSRect)dirtyRect {
fWindow->onPaint();
}
static Window::Key get_key(unsigned short vk) {
// This will work with an ANSI QWERTY keyboard.
// Something more robust would be needed to support alternate keyboards.
static const struct {
unsigned short fVK;
Window::Key fKey;
} gPair[] = {
{ 0x33, Window::Key::kBack },
{ 0x24, Window::Key::kOK },
{ 0x7E, Window::Key::kUp },
{ 0x7D, Window::Key::kDown },
{ 0x7B, Window::Key::kLeft },
{ 0x7C, Window::Key::kRight },
{ 0x30, Window::Key::kTab },
{ 0x74, Window::Key::kPageUp },
{ 0x79, Window::Key::kPageDown },
{ 0x73, Window::Key::kHome },
{ 0x77, Window::Key::kEnd },
{ 0x75, Window::Key::kDelete },
{ 0x35, Window::Key::kEscape },
{ 0x38, Window::Key::kShift },
{ 0x3C, Window::Key::kShift },
{ 0x3B, Window::Key::kCtrl },
{ 0x3E, Window::Key::kCtrl },
{ 0x3A, Window::Key::kOption },
{ 0x3D, Window::Key::kOption },
{ 0x00, Window::Key::kA },
{ 0x08, Window::Key::kC },
{ 0x09, Window::Key::kV },
{ 0x07, Window::Key::kX },
{ 0x10, Window::Key::kY },
{ 0x06, Window::Key::kZ },
};
for (size_t i = 0; i < SK_ARRAY_COUNT(gPair); i++) {
if (gPair[i].fVK == vk) {
return gPair[i].fKey;
}
}
return Window::Key::kNONE;
}
static uint32_t get_modifiers(const NSEvent* event) {
NSUInteger modifierFlags = [event modifierFlags];
auto modifiers = 0;
if (modifierFlags & NSEventModifierFlagShift) {
modifiers |= Window::kShift_ModifierKey;
}
if (modifierFlags & NSEventModifierFlagControl) {
modifiers |= Window::kControl_ModifierKey;
}
if (modifierFlags & NSEventModifierFlagOption) {
modifiers |= Window::kOption_ModifierKey;
}
if ((NSKeyDown == [event type] || NSKeyUp == [event type]) &&
NO == [event isARepeat]) {
modifiers |= Window::kFirstPress_ModifierKey;
}
return modifiers;
}
- (void)keyDown:(NSEvent *)event {
Window::Key key = get_key([event keyCode]);
if (key != Window::Key::kNONE) {
if (!fWindow->onKey(key, Window::kDown_InputState, get_modifiers(event))) {
if (Window::Key::kEscape == key) {
[NSApp terminate:self];
}
}
}
NSString* characters = [event charactersIgnoringModifiers];
NSUInteger len = [characters length];
if (len > 0) {
unichar* charBuffer = new unichar[len+1];
[characters getCharacters:charBuffer range:NSMakeRange(0, len)];
for (NSUInteger i = 0; i < len; ++i) {
(void) fWindow->onChar((SkUnichar) charBuffer[i], get_modifiers(event));
}
delete [] charBuffer;
}
}
- (void)keyUp:(NSEvent *)event {
Window::Key key = get_key([event keyCode]);
if (key != Window::Key::kNONE) {
(void) fWindow->onKey(key, Window::kUp_InputState, get_modifiers(event));
}
}
- (void)mouseDown:(NSEvent *)event {
const NSPoint pos = [event locationInWindow];
const NSRect rect = [self frame];
fWindow->onMouse(pos.x, rect.size.height - pos.y, Window::kDown_InputState,
get_modifiers(event));
}
- (void)mouseDragged:(NSEvent *)event {
[self mouseMoved:event];
}
- (void)mouseUp:(NSEvent *)event {
const NSPoint pos = [event locationInWindow];
const NSRect rect = [self frame];
fWindow->onMouse(pos.x, rect.size.height - pos.y, Window::kUp_InputState,
get_modifiers(event));
}
- (void)mouseMoved:(NSEvent *)event {
const NSPoint pos = [event locationInWindow];
const NSRect rect = [self frame];
fWindow->onMouse(pos.x, rect.size.height - pos.y, Window::kMove_InputState,
get_modifiers(event));
}
- (void)scrollWheel:(NSEvent *)event {
// TODO: support hasPreciseScrollingDeltas?
fWindow->onMouseWheel([event scrollingDeltaY], get_modifiers(event));
}
@end