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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
#import <UIKit/UIEvent.h>
#import <UIKit/UIKit.h>
#import <UIKit/UIGraphics.h>
#import <UIKit/UIInterface.h>
#import <UIKit/UIScreen.h>
#import <UIKit/UITapGestureRecognizer.h>
#import <UIKit/UITouch.h>
#import <UIKit/UIView.h>
#import <UIKit/UIViewController.h>
#import <UIKit/UIWindow.h>
#import <QuartzCore/QuartzCore.h>
#include <algorithm>
#include "nsWindow.h"
#include "nsAppShell.h"
#ifdef ACCESSIBILITY
# include "nsAccessibilityService.h"
# include "mozilla/a11y/LocalAccessible.h"
#endif
#include "nsWidgetsCID.h"
#include "nsGfxCIID.h"
#include "gfxPlatform.h"
#include "gfxQuartzSurface.h"
#include "gfxUtils.h"
#include "gfxImageSurface.h"
#include "gfxContext.h"
#include "nsObjCExceptions.h"
#include "nsRegion.h"
#include "nsTArray.h"
#include "TextInputHandler.h"
#include "UIKitUtils.h"
#include "mozilla/BasicEvents.h"
#include "mozilla/ProfilerLabels.h"
#include "mozilla/TouchEvents.h"
#include "mozilla/Unused.h"
#include "mozilla/dom/MouseEventBinding.h"
#include "mozilla/gfx/Logging.h"
#ifdef ACCESSIBILITY
# include "mozilla/a11y/MUIRootAccessibleProtocol.h"
#endif
using namespace mozilla;
using namespace mozilla::gfx;
using namespace mozilla::layers;
using mozilla::dom::Touch;
using mozilla::widget::UIKitUtils;
#define ALOG(args...) \
fprintf(stderr, args); \
fprintf(stderr, "\n")
static LayoutDeviceIntPoint UIKitPointsToDevPixels(CGPoint aPoint,
CGFloat aBackingScale) {
return LayoutDeviceIntPoint(NSToIntRound(aPoint.x * aBackingScale),
NSToIntRound(aPoint.y * aBackingScale));
}
static CGRect DevPixelsToUIKitPoints(const LayoutDeviceIntRect& aRect,
CGFloat aBackingScale) {
return CGRectMake((CGFloat)aRect.x / aBackingScale,
(CGFloat)aRect.y / aBackingScale,
(CGFloat)aRect.width / aBackingScale,
(CGFloat)aRect.height / aBackingScale);
}
// Used to retain a Cocoa object for the remainder of a method's execution.
class nsAutoRetainUIKitObject {
public:
explicit nsAutoRetainUIKitObject(id anObject) { mObject = [anObject retain]; }
~nsAutoRetainUIKitObject() { [mObject release]; }
private:
id mObject; // [STRONG]
};
#ifdef ACCESSIBILITY
@interface ChildView : UIView <UIKeyInput, MUIRootAccessibleProtocol> {
#else
@interface ChildView : UIView <UIKeyInput> {
#endif
@public
nsWindow* mGeckoChild; // weak ref
BOOL mWaitingForPaint;
NSMapTable<UITouch*, NSNumber*>* mTouches;
int mNextTouchID;
}
// sets up our view, attaching it to its owning gecko view
- (id)initWithFrame:(CGRect)inFrame geckoChild:(nsWindow*)inChild;
// Our Gecko child was Destroy()ed
- (void)widgetDestroyed;
// Tear down this ChildView
- (void)delayedTearDown;
- (void)sendMouseEvent:(EventMessage)aType
point:(LayoutDeviceIntPoint)aPoint
widget:(nsWindow*)aWindow;
- (void)handleTap:(UITapGestureRecognizer*)sender;
- (BOOL)isUsingMainThreadOpenGL;
- (void)drawUsingOpenGL;
- (void)drawUsingOpenGLCallback;
- (void)sendTouchEvent:(EventMessage)aType
touches:(NSSet*)aTouches
widget:(nsWindow*)aWindow;
// Event handling (UIResponder)
- (void)touchesBegan:(NSSet<UITouch*>*)touches withEvent:(UIEvent*)event;
- (void)touchesCancelled:(NSSet<UITouch*>*)touches withEvent:(UIEvent*)event;
- (void)touchesEnded:(NSSet<UITouch*>*)touches withEvent:(UIEvent*)event;
- (void)touchesMoved:(NSSet<UITouch*>*)touches withEvent:(UIEvent*)event;
- (void)activateWindow:(NSNotification*)notification;
- (void)deactivateWindow:(NSNotification*)notification;
#ifdef ACCESSIBILITY
// MUIRootAccessible
- (BOOL)hasRepresentedView;
- (id)representedView;
// MUIAccessible
- (BOOL)isAccessibilityElement;
- (NSString*)accessibilityLabel;
- (CGRect)accessibilityFrame;
- (NSString*)accessibilityValue;
- (uint64_t)accessibilityTraits;
- (NSInteger)accessibilityElementCount;
- (nullable id)accessibilityElementAtIndex:(NSInteger)index;
- (NSInteger)indexOfAccessibilityElement:(id)element;
- (NSArray* _Nullable)accessibilityElements;
- (UIAccessibilityContainerType)accessibilityContainerType;
#endif
@end
@implementation ChildView
+ (Class)layerClass {
return [CAEAGLLayer class];
}
- (id)initWithFrame:(CGRect)inFrame geckoChild:(nsWindow*)inChild {
self.multipleTouchEnabled = YES;
if ((self = [super initWithFrame:inFrame])) {
mGeckoChild = inChild;
}
ALOG("[ChildView[%p] initWithFrame:] (mGeckoChild = %p)", (void*)self,
(void*)mGeckoChild);
self.opaque = YES;
self.alpha = 1.0;
UITapGestureRecognizer* tapRecognizer =
[[UITapGestureRecognizer alloc] initWithTarget:self
action:@selector(handleTap:)];
tapRecognizer.numberOfTapsRequired = 1;
[self addGestureRecognizer:tapRecognizer];
mTouches = [[NSMapTable alloc] init];
mNextTouchID = 0;
// This is managed with weak references by the notification center so that we
// do not need to call removeObserver.
[[NSNotificationCenter defaultCenter]
addObserver:self
selector:@selector(activateWindow:)
name:UIWindowDidBecomeKeyNotification
object:nil];
[[NSNotificationCenter defaultCenter]
addObserver:self
selector:@selector(deactivateWindow:)
name:UIWindowDidResignKeyNotification
object:nil];
return self;
}
- (void)widgetDestroyed {
mGeckoChild = nullptr;
[mTouches release];
}
- (void)delayedTearDown {
[self removeFromSuperview];
[self release];
}
- (void)activateWindow:(NSNotification*)notification {
ALOG("[[ChildView[%p] activateWindow]", (void*)self);
if (!mGeckoChild) {
return;
}
if (nsIWidgetListener* listener = mGeckoChild->GetWidgetListener()) {
listener->WindowActivated();
}
}
- (void)deactivateWindow:(NSNotification*)notification {
ALOG("[[ChildView[%p] deactivateWindow]", (void*)self);
if (!mGeckoChild) {
return;
}
if (nsIWidgetListener* listener = mGeckoChild->GetWidgetListener()) {
listener->WindowDeactivated();
}
}
- (void)sendMouseEvent:(EventMessage)aType
point:(LayoutDeviceIntPoint)aPoint
widget:(nsWindow*)aWindow {
WidgetMouseEvent event(true, aType, aWindow, WidgetMouseEvent::eReal,
WidgetMouseEvent::eNormal);
event.mRefPoint = aPoint;
event.mClickCount = 1;
event.mButton = MouseButton::ePrimary;
event.mInputSource = mozilla::dom::MouseEvent_Binding::MOZ_SOURCE_UNKNOWN;
nsEventStatus status;
aWindow->DispatchEvent(&event, status);
}
- (void)handleTap:(UITapGestureRecognizer*)sender {
if (sender.state == UIGestureRecognizerStateEnded) {
ALOG("[ChildView[%p] handleTap]", self);
LayoutDeviceIntPoint lp = UIKitPointsToDevPixels(
[sender locationInView:self], [self contentScaleFactor]);
[self sendMouseEvent:eMouseMove point:lp widget:mGeckoChild];
[self sendMouseEvent:eMouseDown point:lp widget:mGeckoChild];
[self sendMouseEvent:eMouseUp point:lp widget:mGeckoChild];
}
}
- (void)sendTouchEvent:(EventMessage)aType
touches:(NSSet*)aTouches
widget:(nsWindow*)aWindow {
WidgetTouchEvent event(true, aType, aWindow);
// XXX: I think nativeEvent.timestamp * 1000 is probably usable here but
// I don't care that much right now.
event.mTouches.SetCapacity(aTouches.count);
for (UITouch* touch in aTouches) {
LayoutDeviceIntPoint loc = UIKitPointsToDevPixels(
[touch locationInView:self], [self contentScaleFactor]);
LayoutDeviceIntPoint radius = UIKitPointsToDevPixels(
CGPointMake([touch majorRadius], [touch majorRadius]),
[self contentScaleFactor]);
NSNumber* value = [mTouches objectForKey:touch];
if (value == nil) {
// This shouldn't happen.
NS_ASSERTION(false, "Got a touch that we didn't know about");
continue;
}
int id = [value intValue];
RefPtr<Touch> t = new Touch(id, loc, radius, 0.0f, 1.0f);
event.mRefPoint = loc;
event.mTouches.AppendElement(t);
}
aWindow->DispatchInputEvent(&event);
}
- (void)touchesBegan:(NSSet<UITouch*>*)touches withEvent:(UIEvent*)event {
ALOG("[ChildView[%p] touchesBegan", self);
if (!mGeckoChild) return;
for (UITouch* touch : touches) {
[mTouches setObject:[NSNumber numberWithInt:mNextTouchID] forKey:touch];
mNextTouchID++;
}
[self sendTouchEvent:eTouchStart
touches:[event allTouches]
widget:mGeckoChild];
}
- (void)touchesCancelled:(NSSet<UITouch*>*)touches withEvent:(UIEvent*)event {
ALOG("[ChildView[%p] touchesCancelled", self);
[self sendTouchEvent:eTouchCancel touches:touches widget:mGeckoChild];
for (UITouch* touch : touches) {
[mTouches removeObjectForKey:touch];
}
if (mTouches.count == 0) {
mNextTouchID = 0;
}
}
- (void)touchesEnded:(NSSet<UITouch*>*)touches withEvent:(UIEvent*)event {
ALOG("[ChildView[%p] touchesEnded", self);
if (!mGeckoChild) return;
[self sendTouchEvent:eTouchEnd touches:touches widget:mGeckoChild];
for (UITouch* touch : touches) {
[mTouches removeObjectForKey:touch];
}
if (mTouches.count == 0) {
mNextTouchID = 0;
}
}
- (void)touchesMoved:(NSSet<UITouch*>*)touches withEvent:(UIEvent*)event {
ALOG("[ChildView[%p] touchesMoved", self);
if (!mGeckoChild) return;
[self sendTouchEvent:eTouchMove
touches:[event allTouches]
widget:mGeckoChild];
}
- (BOOL)canBecomeFirstResponder {
if (!mGeckoChild) {
return NO;
}
if (mGeckoChild->IsVirtualKeyboardDisabled()) {
return NO;
}
return YES;
}
- (void)setNeedsDisplayInRect:(CGRect)aRect {
if ([self isUsingMainThreadOpenGL]) {
// Draw without calling drawRect. This prevent us from
// needing to access the normal window buffer surface unnecessarily, so we
// waste less time synchronizing the two surfaces.
if (!mWaitingForPaint) {
mWaitingForPaint = YES;
// Use NSRunLoopCommonModes instead of the default NSDefaultRunLoopMode
// so that the timer also fires while a native menu is open.
[self performSelector:@selector(drawUsingOpenGLCallback)
withObject:nil
afterDelay:0
inModes:[NSArray arrayWithObject:NSRunLoopCommonModes]];
}
}
}
- (BOOL)isUsingMainThreadOpenGL {
if (!mGeckoChild || ![self window]) return NO;
return NO;
}
- (void)drawUsingOpenGL {
ALOG("drawUsingOpenGL");
AUTO_PROFILER_LABEL("ChildView::drawUsingOpenGL", OTHER);
if (!mGeckoChild->IsVisible()) return;
mWaitingForPaint = NO;
LayoutDeviceIntRect geckoBounds = mGeckoChild->GetBounds();
LayoutDeviceIntRegion region(geckoBounds);
mGeckoChild->PaintWindow(region);
}
// Called asynchronously after setNeedsDisplay in order to avoid entering the
// normal drawing machinery.
- (void)drawUsingOpenGLCallback {
if (mWaitingForPaint) {
[self drawUsingOpenGL];
}
}
// The display system has told us that a portion of our view is dirty. Tell
// gecko to paint it
- (void)drawRect:(CGRect)aRect {
CGContextRef cgContext = UIGraphicsGetCurrentContext();
[self drawRect:aRect inContext:cgContext];
}
- (void)drawRect:(CGRect)aRect inContext:(CGContextRef)aContext {
#ifdef DEBUG_UPDATE
LayoutDeviceIntRect geckoBounds = mGeckoChild->GetBounds();
fprintf(stderr,
"---- Update[%p][%p] [%f %f %f %f] cgc: %p\n gecko bounds: [%d %d "
"%d %d]\n",
self, mGeckoChild, aRect.origin.x, aRect.origin.y, aRect.size.width,
aRect.size.height, aContext, geckoBounds.x, geckoBounds.y,
geckoBounds.width, geckoBounds.height);
CGAffineTransform xform = CGContextGetCTM(aContext);
fprintf(stderr, " xform in: [%f %f %f %f %f %f]\n", xform.a, xform.b,
xform.c, xform.d, xform.tx, xform.ty);
#endif
if (true) {
// For Gecko-initiated repaints in OpenGL mode, drawUsingOpenGL is
// directly called from a delayed perform callback - without going through
// drawRect.
// Paints that come through here are triggered by something that Cocoa
// controls, for example by window resizing or window focus changes.
// Do GL composition and return.
[self drawUsingOpenGL];
return;
}
AUTO_PROFILER_LABEL("ChildView::drawRect", OTHER);
// The CGContext that drawRect supplies us with comes with a transform that
// scales one user space unit to one Cocoa point, which can consist of
// multiple dev pixels. But Gecko expects its supplied context to be scaled
// to device pixels, so we need to reverse the scaling.
double scale = mGeckoChild->BackingScaleFactor();
CGContextSaveGState(aContext);
CGContextScaleCTM(aContext, 1.0 / scale, 1.0 / scale);
CGSize viewSize = [self bounds].size;
gfx::IntSize backingSize(NSToIntRound(viewSize.width * scale),
NSToIntRound(viewSize.height * scale));
CGContextSaveGState(aContext);
LayoutDeviceIntRegion region =
LayoutDeviceIntRect(NSToIntRound(aRect.origin.x * scale),
NSToIntRound(aRect.origin.y * scale),
NSToIntRound(aRect.size.width * scale),
NSToIntRound(aRect.size.height * scale));
// Create Cairo objects.
RefPtr<gfxQuartzSurface> targetSurface;
UniquePtr<gfxContext> targetContext;
if (gfxPlatform::GetPlatform()->SupportsAzureContentForType(
gfx::BackendType::CAIRO)) {
// This is dead code unless you mess with prefs, but keep it around for
// debugging.
targetSurface = new gfxQuartzSurface(aContext, backingSize);
RefPtr<gfx::DrawTarget> dt =
gfxPlatform::CreateDrawTargetForSurface(targetSurface, backingSize);
if (!dt || !dt->IsValid()) {
gfxDevCrash(mozilla::gfx::LogReason::InvalidContext)
<< "Window context problem 2 " << backingSize;
return;
}
targetContext = gfxContext::CreateOrNull(dt);
} else {
MOZ_ASSERT_UNREACHABLE("COREGRAPHICS is the only supported backend");
}
MOZ_ASSERT(targetContext); // already checked for valid draw targets above
// Set up the clip region.
targetContext->NewPath();
for (auto iter = region.RectIter(); !iter.Done(); iter.Next()) {
const LayoutDeviceIntRect& r = iter.Get();
targetContext->Rectangle(gfxRect(r.x, r.y, r.width, r.height));
}
targetContext->Clip();
// nsAutoRetainCocoaObject kungFuDeathGrip(self);
bool painted = false;
targetContext = nullptr;
targetSurface = nullptr;
CGContextRestoreGState(aContext);
// Undo the scale transform so that from now on the context is in
// CocoaPoints again.
CGContextRestoreGState(aContext);
if (!painted && [self isOpaque]) {
// Gecko refused to draw, but we've claimed to be opaque, so we have to
// draw something--fill with white.
CGContextSetRGBFillColor(aContext, 1, 1, 1, 1);
CGContextFillRect(aContext, aRect);
}
#ifdef DEBUG_UPDATE
fprintf(stderr, "---- update done ----\n");
# if 0
CGContextSetRGBStrokeColor (aContext,
((((unsigned long)self) & 0xff)) / 255.0,
((((unsigned long)self) & 0xff00) >> 8) / 255.0,
((((unsigned long)self) & 0xff0000) >> 16) / 255.0,
0.5);
# endif
CGContextSetRGBStrokeColor(aContext, 1, 0, 0, 0.8);
CGContextSetLineWidth(aContext, 4.0);
CGContextStrokeRect(aContext, aRect);
#endif
}
// UIKeyInput
- (void)insertText:(NSString*)text {
if (!mGeckoChild || mGeckoChild->Destroyed()) {
return;
}
widget::TextInputHandler* textInputHandler =
mGeckoChild->GetTextInputHandler();
if (!textInputHandler) {
return;
}
textInputHandler->InsertText(text);
}
- (void)deleteBackward {
if (!mGeckoChild || mGeckoChild->Destroyed()) {
return;
}
widget::TextInputHandler* textInputHandler =
mGeckoChild->GetTextInputHandler();
if (!textInputHandler) {
return;
}
textInputHandler->HandleCommand(Command::DeleteCharBackward);
}
- (BOOL)hasText {
if (!mGeckoChild || mGeckoChild->Destroyed()) {
return NO;
}
widget::InputContext context = mGeckoChild->GetInputContext();
if (context.mIMEState.mEnabled == mozilla::widget::IMEEnabled::Disabled) {
return NO;
}
return YES;
}
// UITextInputTraits
- (UIKeyboardType)keyboardType {
if (!mGeckoChild || mGeckoChild->Destroyed()) {
return UIKeyboardTypeDefault;
}
return UIKitUtils::GetUIKeyboardType(mGeckoChild->GetInputContext());
}
- (UIReturnKeyType)returnKeyType {
if (!mGeckoChild || mGeckoChild->Destroyed()) {
return UIReturnKeyDefault;
}
return UIKitUtils::GetUIReturnKeyType(mGeckoChild->GetInputContext());
}
- (UITextAutocapitalizationType)autocapitalizationType {
if (!mGeckoChild || mGeckoChild->Destroyed()) {
return UITextAutocapitalizationTypeNone;
}
return UIKitUtils::GetUITextAutocapitalizationType(
mGeckoChild->GetInputContext());
}
- (BOOL)isSecureTextEntry {
if (!mGeckoChild || mGeckoChild->Destroyed()) {
return NO;
}
if (mGeckoChild->GetInputContext().IsPasswordEditor()) {
return YES;
}
return NO;
}
#ifdef ACCESSIBILITY
// MUIRootAccessible
- (id<MUIRootAccessibleProtocol>)accessible {
if (!mGeckoChild) return nil;
id<MUIRootAccessibleProtocol> nativeAccessible = nil;
// nsAutoRetainCocoaObject kungFuDeathGrip(self);
RefPtr<nsWindow> geckoChild(mGeckoChild);
RefPtr<a11y::LocalAccessible> accessible = geckoChild->GetRootAccessible();
if (!accessible) return nil;
accessible->GetNativeInterface((void**)&nativeAccessible);
return nativeAccessible;
}
- (BOOL)hasRepresentedView {
return YES;
}
- (id)representedView {
return self;
}
- (BOOL)isAccessibilityElement {
if (!mozilla::a11y::ShouldA11yBeEnabled()) {
return [super isAccessibilityElement];
}
return [[self accessible] isAccessibilityElement];
}
- (NSString*)accessibilityLabel {
if (!mozilla::a11y::ShouldA11yBeEnabled()) {
return [super accessibilityLabel];
}
return [[self accessible] accessibilityLabel];
}
- (CGRect)accessibilityFrame {
// Use the UIView implementation here. We rely on the position of this
// frame to place gecko bounds in the right offset.
return [super accessibilityFrame];
}
- (NSString*)accessibilityValue {
if (!mozilla::a11y::ShouldA11yBeEnabled()) {
return [super accessibilityValue];
}
return [[self accessible] accessibilityValue];
}
- (uint64_t)accessibilityTraits {
if (!mozilla::a11y::ShouldA11yBeEnabled()) {
return [super accessibilityTraits];
}
return [[self accessible] accessibilityTraits];
}
- (NSInteger)accessibilityElementCount {
if (!mozilla::a11y::ShouldA11yBeEnabled()) {
return [super accessibilityElementCount];
}
return [[self accessible] accessibilityElementCount];
}
- (nullable id)accessibilityElementAtIndex:(NSInteger)index {
if (!mozilla::a11y::ShouldA11yBeEnabled()) {
return [super accessibilityElementAtIndex:index];
}
return [[self accessible] accessibilityElementAtIndex:index];
}
- (NSInteger)indexOfAccessibilityElement:(id)element {
if (!mozilla::a11y::ShouldA11yBeEnabled()) {
return [super indexOfAccessibilityElement:element];
}
return [[self accessible] indexOfAccessibilityElement:element];
}
- (NSArray* _Nullable)accessibilityElements {
if (!mozilla::a11y::ShouldA11yBeEnabled()) {
return [super accessibilityElements];
}
return [[self accessible] accessibilityElements];
}
- (UIAccessibilityContainerType)accessibilityContainerType {
if (!mozilla::a11y::ShouldA11yBeEnabled()) {
return [super accessibilityContainerType];
}
return [[self accessible] accessibilityContainerType];
}
#endif
@end
nsWindow::nsWindow()
: mNativeView(nullptr),
mVisible(false),
mSizeMode(nsSizeMode_Normal),
mParent(nullptr) {}
nsWindow::~nsWindow() {
[mNativeView widgetDestroyed]; // Safe if mNativeView is nil.
TearDownView(); // Safe if called twice.
}
void nsWindow::TearDownView() {
if (!mNativeView) return;
[mNativeView performSelectorOnMainThread:@selector(delayedTearDown)
withObject:nil
waitUntilDone:false];
mNativeView = nil;
}
bool nsWindow::IsTopLevel() {
return mWindowType == WindowType::TopLevel ||
mWindowType == WindowType::Dialog ||
mWindowType == WindowType::Invisible;
}
//
// nsIWidget
//
nsresult nsWindow::Create(nsIWidget* aParent, nsNativeWidget aNativeParent,
const LayoutDeviceIntRect& aRect,
widget::InitData* aInitData) {
ALOG("nsWindow[%p]::Create %p/%p [%d %d %d %d]", (void*)this, (void*)aParent,
(void*)aNativeParent, aRect.x, aRect.y, aRect.width, aRect.height);
nsWindow* parent = (nsWindow*)aParent;
ChildView* nativeParent = (ChildView*)aNativeParent;
if (parent == nullptr && nativeParent) parent = nativeParent->mGeckoChild;
if (parent && nativeParent == nullptr) nativeParent = parent->mNativeView;
mBounds = aRect;
ALOG("nsWindow[%p]::Create bounds: %d %d %d %d", (void*)this, mBounds.x,
mBounds.y, mBounds.width, mBounds.height);
// Set defaults which can be overriden from aInitData in BaseCreate
mWindowType = WindowType::TopLevel;
mBorderStyle = BorderStyle::Default;
Inherited::BaseCreate(aParent, aInitData);
NS_ASSERTION(IsTopLevel() || parent,
"non top level window doesn't have a parent!");
mNativeView = [[ChildView alloc]
initWithFrame:DevPixelsToUIKitPoints(mBounds, BackingScaleFactor())
geckoChild:this];
mNativeView.hidden = YES;
if (parent) {
parent->mChildren.AppendElement(this);
mParent = parent;
}
if (nativeParent) {
[nativeParent addSubview:mNativeView];
} else if (nsAppShell::gWindow) {
[nsAppShell::gWindow.rootViewController.view addSubview:mNativeView];
} else {
[nsAppShell::gTopLevelViews addObject:mNativeView];
}
mTextInputHandler = new widget::TextInputHandler(this);
return NS_OK;
}
void nsWindow::Destroy() {
for (uint32_t i = 0; i < mChildren.Length(); ++i) {
// why do we still have children?
mChildren[i]->SetParent(nullptr);
}
if (mParent) mParent->mChildren.RemoveElement(this);
if (mTextInputHandler) {
mTextInputHandler->OnDestroyed();
}
mTextInputHandler = nullptr;
[mNativeView widgetDestroyed];
nsBaseWidget::Destroy();
// ReportDestroyEvent();
TearDownView();
nsBaseWidget::OnDestroy();
}
void nsWindow::Show(bool aState) {
if (aState != mVisible) {
mNativeView.hidden = aState ? NO : YES;
if (aState) {
UIView* parentView = mParent
? mParent->mNativeView
: nsAppShell::gWindow.rootViewController.view;
[parentView bringSubviewToFront:mNativeView];
[mNativeView setNeedsDisplay];
}
mVisible = aState;
}
}
void nsWindow::Move(double aX, double aY) {
if (!mNativeView || (mBounds.x == aX && mBounds.y == aY)) return;
// XXX: handle this
// The point we have is in Gecko coordinates (origin top-left). Convert
// it to Cocoa ones (origin bottom-left).
mBounds.x = aX;
mBounds.y = aY;
mNativeView.frame = DevPixelsToUIKitPoints(mBounds, BackingScaleFactor());
if (mVisible) [mNativeView setNeedsDisplay];
ReportMoveEvent();
}
void nsWindow::Resize(double aX, double aY, double aWidth, double aHeight,
bool aRepaint) {
BOOL isMoving = (mBounds.x != aX || mBounds.y != aY);
BOOL isResizing = (mBounds.width != aWidth || mBounds.height != aHeight);
if (!mNativeView || (!isMoving && !isResizing)) return;
if (isMoving) {
mBounds.x = aX;
mBounds.y = aY;
}
if (isResizing) {
mBounds.width = aWidth;
mBounds.height = aHeight;
}
[mNativeView setFrame:DevPixelsToUIKitPoints(mBounds, BackingScaleFactor())];
if (mVisible && aRepaint) [mNativeView setNeedsDisplay];
if (isMoving) ReportMoveEvent();
if (isResizing) ReportSizeEvent();
}
void nsWindow::Resize(double aWidth, double aHeight, bool aRepaint) {
if (!mNativeView || (mBounds.width == aWidth && mBounds.height == aHeight))
return;
mBounds.width = aWidth;
mBounds.height = aHeight;
[mNativeView setFrame:DevPixelsToUIKitPoints(mBounds, BackingScaleFactor())];
if (mVisible && aRepaint) [mNativeView setNeedsDisplay];
ReportSizeEvent();
}
void nsWindow::SetSizeMode(nsSizeMode aMode) {
if (aMode == static_cast<int32_t>(mSizeMode)) {
return;
}
mSizeMode = static_cast<nsSizeMode>(aMode);
if (aMode == nsSizeMode_Maximized || aMode == nsSizeMode_Fullscreen) {
// Resize to fill screen
nsBaseWidget::InfallibleMakeFullScreen(true);
}
ReportSizeModeEvent(aMode);
}
void nsWindow::Invalidate(const LayoutDeviceIntRect& aRect) {
if (!mNativeView || !mVisible) return;
[mNativeView setNeedsLayout];
[mNativeView setNeedsDisplayInRect:DevPixelsToUIKitPoints(
mBounds, BackingScaleFactor())];
}
void nsWindow::SetFocus(Raise, mozilla::dom::CallerType) {
[[mNativeView window] makeKeyWindow];
[mNativeView becomeFirstResponder];
}
void nsWindow::WillPaintWindow() {
if (mWidgetListener) {
mWidgetListener->WillPaintWindow(this);
}
}
bool nsWindow::PaintWindow(LayoutDeviceIntRegion aRegion) {
if (!mWidgetListener) return false;
bool returnValue = false;
returnValue = mWidgetListener->PaintWindow(this, aRegion);
if (mWidgetListener) {
mWidgetListener->DidPaintWindow();
}
return returnValue;
}
void nsWindow::ReportMoveEvent() { NotifyWindowMoved(mBounds.x, mBounds.y); }
void nsWindow::ReportSizeModeEvent(nsSizeMode aMode) {
if (mWidgetListener) {
// This is terrible.
nsSizeMode theMode;
switch (aMode) {
case nsSizeMode_Maximized:
theMode = nsSizeMode_Maximized;
break;
case nsSizeMode_Fullscreen:
theMode = nsSizeMode_Fullscreen;
break;
default:
return;
}
mWidgetListener->SizeModeChanged(theMode);
}
}
void nsWindow::ReportSizeEvent() {
LayoutDeviceIntRect innerBounds = GetClientBounds();
if (mWidgetListener) {
mWidgetListener->WindowResized(this, innerBounds.width, innerBounds.height);
}
if (mAttachedWidgetListener) {
mAttachedWidgetListener->WindowResized(this, innerBounds.width,
innerBounds.height);
}
}
LayoutDeviceIntRect nsWindow::GetScreenBounds() {
return LayoutDeviceIntRect(WidgetToScreenOffset(), mBounds.Size());
}
LayoutDeviceIntPoint nsWindow::WidgetToScreenOffset() {
LayoutDeviceIntPoint offset(0, 0);
if (mParent) {
offset = mParent->WidgetToScreenOffset();
}
CGPoint temp = [mNativeView convertPoint:temp toView:nil];
if (!mParent && nsAppShell::gWindow) {
// convert to screen coords
temp = [nsAppShell::gWindow convertPoint:temp toWindow:nil];
}
offset.x += static_cast<int32_t>(temp.x);
offset.y += static_cast<int32_t>(temp.y);
return offset;
}
nsresult nsWindow::DispatchEvent(mozilla::WidgetGUIEvent* aEvent,
nsEventStatus& aStatus) {
aStatus = nsEventStatus_eIgnore;
nsCOMPtr<nsIWidget> kungFuDeathGrip(aEvent->mWidget);
mozilla::Unused << kungFuDeathGrip; // Not used within this function
if (mAttachedWidgetListener) {
aStatus = mAttachedWidgetListener->HandleEvent(aEvent, mUseAttachedEvents);
} else if (mWidgetListener) {
aStatus = mWidgetListener->HandleEvent(aEvent, mUseAttachedEvents);
}
return NS_OK;
}
void nsWindow::SetInputContext(const InputContext& aContext,
const InputContextAction& aAction) {
NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
const bool changingEnabledState =
aContext.IsInputAttributeChanged(mInputContext);
mInputContext = aContext;
if (IsVirtualKeyboardDisabled()) {
[mNativeView resignFirstResponder];
return;
}
[mNativeView becomeFirstResponder];
if (aAction.UserMightRequestOpenVKB() || changingEnabledState) {
// TODO(m_kato):
// It is unnecessary to call reloadInputViews with changingEnabledState if
// virtual keyboard is disappeared.
[mNativeView reloadInputViews];
}
NS_OBJC_END_TRY_IGNORE_BLOCK;
}
widget::InputContext nsWindow::GetInputContext() {
if (!mTextInputHandler) {
InputContext context;
context.mIMEState.mEnabled = IMEEnabled::Disabled;
context.mIMEState.mOpen = IMEState::OPEN_STATE_NOT_SUPPORTED;
return context;
}
return mInputContext;
}
widget::TextEventDispatcherListener*
nsWindow::GetNativeTextEventDispatcherListener() {
return mTextInputHandler;
}
bool nsWindow::IsVirtualKeyboardDisabled() const {
return mInputContext.mIMEState.mEnabled == IMEEnabled::Disabled ||
mInputContext.mHTMLInputMode.EqualsLiteral("none");
}
void nsWindow::SetBackgroundColor(const nscolor& aColor) {
mNativeView.backgroundColor = [UIColor colorWithRed:NS_GET_R(aColor)
green:NS_GET_G(aColor)
blue:NS_GET_B(aColor)
alpha:NS_GET_A(aColor)];
}
void* nsWindow::GetNativeData(uint32_t aDataType) {
void* retVal = nullptr;
switch (aDataType) {
case NS_NATIVE_WIDGET:
retVal = (void*)mNativeView;
break;
case NS_NATIVE_WINDOW:
retVal = [mNativeView window];
break;
case NS_NATIVE_GRAPHIC:
NS_ERROR("Requesting NS_NATIVE_GRAPHIC on a UIKit child view!");
break;
case NS_NATIVE_OFFSETX:
retVal = 0;
break;
case NS_NATIVE_OFFSETY:
retVal = 0;
break;
case NS_RAW_NATIVE_IME_CONTEXT:
retVal = GetPseudoIMEContext();
if (retVal) {
break;
}
retVal = NS_ONLY_ONE_NATIVE_IME_CONTEXT;
break;
}
return retVal;
}
CGFloat nsWindow::BackingScaleFactor() {
if (mNativeView) {
return [mNativeView contentScaleFactor];
}
return [UIScreen mainScreen].scale;
}
int32_t nsWindow::RoundsWidgetCoordinatesTo() {
if (BackingScaleFactor() == 2.0) {
return 2;
}
return 1;
}
already_AddRefed<nsIWidget> nsIWidget::CreateTopLevelWindow() {
nsCOMPtr<nsIWidget> window = new nsWindow();
return window.forget();
}
already_AddRefed<nsIWidget> nsIWidget::CreateChildWindow() {
nsCOMPtr<nsIWidget> window = new nsWindow();
return window.forget();
}