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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+// vim:set ts=2 sts=2 sw=2 et cin:
+/* 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/. */
+
+#include <dlfcn.h>
+#import <AppKit/AppKit.h>
+#import <QuartzCore/QuartzCore.h>
+#include "PluginUtilsOSX.h"
+
+// Remove definitions for try/catch interfering with ObjCException macros.
+#include "nsObjCExceptions.h"
+#include "nsCocoaUtils.h"
+
+#include "nsDebug.h"
+
+#include "mozilla/Sprintf.h"
+
+@interface CALayer (ContentsScale)
+- (double)contentsScale;
+- (void)setContentsScale:(double)scale;
+@end
+
+using namespace mozilla::plugins::PluginUtilsOSX;
+
+@interface CGBridgeLayer : CALayer {
+ DrawPluginFunc mDrawFunc;
+ void* mPluginInstance;
+ nsIntRect mUpdateRect;
+}
+- (void)setDrawFunc:(DrawPluginFunc)aFunc
+ pluginInstance:(void*)aPluginInstance;
+- (void)updateRect:(nsIntRect)aRect;
+
+@end
+
+// CGBitmapContextSetData() is an undocumented function present (with
+// the same signature) since at least OS X 10.5. As the name suggests,
+// it's used to replace the "data" in a bitmap context that was
+// originally specified in a call to CGBitmapContextCreate() or
+// CGBitmapContextCreateWithData().
+typedef void (*CGBitmapContextSetDataFunc) (CGContextRef c,
+ size_t x,
+ size_t y,
+ size_t width,
+ size_t height,
+ void* data,
+ size_t bitsPerComponent,
+ size_t bitsPerPixel,
+ size_t bytesPerRow);
+CGBitmapContextSetDataFunc CGBitmapContextSetDataPtr = NULL;
+
+@implementation CGBridgeLayer
+- (void) updateRect:(nsIntRect)aRect
+{
+ mUpdateRect.UnionRect(mUpdateRect, aRect);
+}
+
+- (void) setDrawFunc:(DrawPluginFunc)aFunc
+ pluginInstance:(void*)aPluginInstance
+{
+ mDrawFunc = aFunc;
+ mPluginInstance = aPluginInstance;
+}
+
+- (void)drawInContext:(CGContextRef)aCGContext
+{
+ ::CGContextSaveGState(aCGContext);
+ ::CGContextTranslateCTM(aCGContext, 0, self.bounds.size.height);
+ ::CGContextScaleCTM(aCGContext, (CGFloat) 1, (CGFloat) -1);
+
+ mUpdateRect = nsIntRect::Truncate(0, 0, self.bounds.size.width, self.bounds.size.height);
+
+ mDrawFunc(aCGContext, mPluginInstance, mUpdateRect);
+
+ ::CGContextRestoreGState(aCGContext);
+
+ mUpdateRect.SetEmpty();
+}
+
+@end
+
+void* mozilla::plugins::PluginUtilsOSX::GetCGLayer(DrawPluginFunc aFunc,
+ void* aPluginInstance,
+ double aContentsScaleFactor) {
+ CGBridgeLayer *bridgeLayer = [[CGBridgeLayer alloc] init];
+
+ // We need to make bridgeLayer behave properly when its superlayer changes
+ // size (in nsCARenderer::SetBounds()).
+ bridgeLayer.autoresizingMask = kCALayerWidthSizable | kCALayerHeightSizable;
+ bridgeLayer.needsDisplayOnBoundsChange = YES;
+ NSNull *nullValue = [NSNull null];
+ NSDictionary *actions = [NSDictionary dictionaryWithObjectsAndKeys:
+ nullValue, @"bounds",
+ nullValue, @"contents",
+ nullValue, @"contentsRect",
+ nullValue, @"position",
+ nil];
+ [bridgeLayer setStyle:[NSDictionary dictionaryWithObject:actions forKey:@"actions"]];
+
+ // For reasons that aren't clear (perhaps one or more OS bugs), we can only
+ // use full HiDPI resolution here if the tree is built with the 10.7 SDK or
+ // up. If we build with the 10.6 SDK, changing the contentsScale property
+ // of bridgeLayer (even to the same value) causes it to stop working (go
+ // blank). This doesn't happen with objects that are members of the CALayer
+ // class (as opposed to one of its subclasses).
+#if defined(MAC_OS_X_VERSION_10_7) && \
+ MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7
+ if ([bridgeLayer respondsToSelector:@selector(setContentsScale:)]) {
+ bridgeLayer.contentsScale = aContentsScaleFactor;
+ }
+#endif
+
+ [bridgeLayer setDrawFunc:aFunc
+ pluginInstance:aPluginInstance];
+ return bridgeLayer;
+}
+
+void mozilla::plugins::PluginUtilsOSX::ReleaseCGLayer(void *cgLayer) {
+ CGBridgeLayer *bridgeLayer = (CGBridgeLayer*)cgLayer;
+ [bridgeLayer release];
+}
+
+void mozilla::plugins::PluginUtilsOSX::Repaint(void *caLayer, nsIntRect aRect) {
+ CGBridgeLayer *bridgeLayer = (CGBridgeLayer*)caLayer;
+ [CATransaction begin];
+ [bridgeLayer updateRect:aRect];
+ [bridgeLayer setNeedsDisplay];
+ [bridgeLayer displayIfNeeded];
+ [CATransaction commit];
+}
+
+@interface EventProcessor : NSObject {
+ RemoteProcessEvents aRemoteEvents;
+ void *aPluginModule;
+}
+- (void)setRemoteEvents:(RemoteProcessEvents) remoteEvents pluginModule:(void*) pluginModule;
+- (void)onTick;
+@end
+
+@implementation EventProcessor
+- (void) onTick
+{
+ aRemoteEvents(aPluginModule);
+}
+
+- (void)setRemoteEvents:(RemoteProcessEvents) remoteEvents pluginModule:(void*) pluginModule
+{
+ aRemoteEvents = remoteEvents;
+ aPluginModule = pluginModule;
+}
+@end
+
+#define EVENT_PROCESS_DELAY 0.05 // 50 ms
+
+NPError mozilla::plugins::PluginUtilsOSX::ShowCocoaContextMenu(void* aMenu, int aX, int aY, void* pluginModule, RemoteProcessEvents remoteEvent)
+{
+ NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
+
+ // Set the native cursor to the OS default (an arrow) before displaying the
+ // context menu. Otherwise (if the plugin has changed the cursor) it may
+ // stay as the plugin has set it -- which means it may be invisible. We
+ // need to do this because we display the context menu without making the
+ // plugin process the foreground process. If we did, the cursor would
+ // change to an arrow cursor automatically -- as it does in Chrome.
+ [[NSCursor arrowCursor] set];
+
+ EventProcessor* eventProcessor = nullptr;
+ NSTimer *eventTimer = nullptr;
+ if (pluginModule) {
+ // Create a timer to process browser events while waiting
+ // on the menu. This prevents the browser from hanging
+ // during the lifetime of the menu.
+ eventProcessor = [[EventProcessor alloc] init];
+ [eventProcessor setRemoteEvents:remoteEvent pluginModule:pluginModule];
+ eventTimer = [NSTimer timerWithTimeInterval:EVENT_PROCESS_DELAY
+ target:eventProcessor selector:@selector(onTick)
+ userInfo:nil repeats:TRUE];
+ // Use NSEventTrackingRunLoopMode otherwise the timer will
+ // not fire during the right click menu.
+ [[NSRunLoop currentRunLoop] addTimer:eventTimer
+ forMode:NSEventTrackingRunLoopMode];
+ }
+
+ NSMenu* nsmenu = reinterpret_cast<NSMenu*>(aMenu);
+ NSPoint screen_point = ::NSMakePoint(aX, aY);
+
+ [nsmenu popUpMenuPositioningItem:nil atLocation:screen_point inView:nil];
+
+ if (pluginModule) {
+ [eventTimer invalidate];
+ [eventProcessor release];
+ }
+
+ return NPERR_NO_ERROR;
+
+ NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(NPERR_GENERIC_ERROR);
+}
+
+void mozilla::plugins::PluginUtilsOSX::InvokeNativeEventLoop()
+{
+ NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
+ ::CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.0, true);
+ NS_OBJC_END_TRY_ABORT_BLOCK;
+}
+
+
+#define UNDOCUMENTED_SESSION_CONSTANT ((int)-2)
+namespace mozilla {
+namespace plugins {
+namespace PluginUtilsOSX {
+ static void *sApplicationASN = NULL;
+ static void *sApplicationInfoItem = NULL;
+} // namespace PluginUtilsOSX
+} // namespace plugins
+} // namespace mozilla
+
+bool mozilla::plugins::PluginUtilsOSX::SetProcessName(const char* aProcessName) {
+ NS_OBJC_BEGIN_TRY_ABORT_BLOCK;
+ nsAutoreleasePool localPool;
+
+ if (!aProcessName || strcmp(aProcessName, "") == 0) {
+ return false;
+ }
+
+ NSString *currentName = [[[NSBundle mainBundle] localizedInfoDictionary]
+ objectForKey:(NSString *)kCFBundleNameKey];
+
+ char formattedName[1024];
+ SprintfLiteral(formattedName, "%s %s", [currentName UTF8String], aProcessName);
+
+ aProcessName = formattedName;
+
+ // This function is based on Chrome/Webkit's and relies on potentially dangerous SPI.
+ typedef CFTypeRef (*LSGetASNType)();
+ typedef OSStatus (*LSSetInformationItemType)(int, CFTypeRef,
+ CFStringRef,
+ CFStringRef,
+ CFDictionaryRef*);
+
+ CFBundleRef launchServices = ::CFBundleGetBundleWithIdentifier(
+ CFSTR("com.apple.LaunchServices"));
+ if (!launchServices) {
+ NS_WARNING("Failed to set process name: Could not open LaunchServices bundle");
+ return false;
+ }
+
+ if (!sApplicationASN) {
+ sApplicationASN = ::CFBundleGetFunctionPointerForName(launchServices,
+ CFSTR("_LSGetCurrentApplicationASN"));
+ }
+
+ LSGetASNType getASNFunc = reinterpret_cast<LSGetASNType>
+ (sApplicationASN);
+
+ if (!sApplicationInfoItem) {
+ sApplicationInfoItem = ::CFBundleGetFunctionPointerForName(launchServices,
+ CFSTR("_LSSetApplicationInformationItem"));
+ }
+
+ LSSetInformationItemType setInformationItemFunc
+ = reinterpret_cast<LSSetInformationItemType>
+ (sApplicationInfoItem);
+
+ void * displayNameKeyAddr = ::CFBundleGetDataPointerForName(launchServices,
+ CFSTR("_kLSDisplayNameKey"));
+
+ CFStringRef displayNameKey = nil;
+ if (displayNameKeyAddr) {
+ displayNameKey = reinterpret_cast<CFStringRef>(*(CFStringRef*)displayNameKeyAddr);
+ }
+
+ // Rename will fail without this
+ ProcessSerialNumber psn;
+ if (::GetCurrentProcess(&psn) != noErr) {
+ return false;
+ }
+
+ CFTypeRef currentAsn = getASNFunc();
+
+ if (!getASNFunc || !setInformationItemFunc ||
+ !displayNameKey || !currentAsn) {
+ NS_WARNING("Failed to set process name: Accessing launchServices failed");
+ return false;
+ }
+
+ CFStringRef processName = ::CFStringCreateWithCString(nil,
+ aProcessName,
+ kCFStringEncodingASCII);
+ if (!processName) {
+ NS_WARNING("Failed to set process name: Could not create CFStringRef");
+ return false;
+ }
+
+ OSErr err = setInformationItemFunc(UNDOCUMENTED_SESSION_CONSTANT, currentAsn,
+ displayNameKey, processName,
+ nil); // Optional out param
+ ::CFRelease(processName);
+ if (err != noErr) {
+ NS_WARNING("Failed to set process name: LSSetInformationItemType err");
+ return false;
+ }
+
+ return true;
+ NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(false);
+}
+
+namespace mozilla {
+namespace plugins {
+namespace PluginUtilsOSX {
+
+size_t nsDoubleBufferCARenderer::GetFrontSurfaceWidth() {
+ if (!HasFrontSurface()) {
+ return 0;
+ }
+
+ return mFrontSurface->GetWidth();
+}
+
+size_t nsDoubleBufferCARenderer::GetFrontSurfaceHeight() {
+ if (!HasFrontSurface()) {
+ return 0;
+ }
+
+ return mFrontSurface->GetHeight();
+}
+
+double nsDoubleBufferCARenderer::GetFrontSurfaceContentsScaleFactor() {
+ if (!HasFrontSurface()) {
+ return 1.0;
+ }
+
+ return mFrontSurface->GetContentsScaleFactor();
+}
+
+size_t nsDoubleBufferCARenderer::GetBackSurfaceWidth() {
+ if (!HasBackSurface()) {
+ return 0;
+ }
+
+ return mBackSurface->GetWidth();
+}
+
+size_t nsDoubleBufferCARenderer::GetBackSurfaceHeight() {
+ if (!HasBackSurface()) {
+ return 0;
+ }
+
+ return mBackSurface->GetHeight();
+}
+
+double nsDoubleBufferCARenderer::GetBackSurfaceContentsScaleFactor() {
+ if (!HasBackSurface()) {
+ return 1.0;
+ }
+
+ return mBackSurface->GetContentsScaleFactor();
+}
+
+IOSurfaceID nsDoubleBufferCARenderer::GetFrontSurfaceID() {
+ if (!HasFrontSurface()) {
+ return 0;
+ }
+
+ return mFrontSurface->GetIOSurfaceID();
+}
+
+bool nsDoubleBufferCARenderer::HasBackSurface() {
+ return !!mBackSurface;
+}
+
+bool nsDoubleBufferCARenderer::HasFrontSurface() {
+ return !!mFrontSurface;
+}
+
+bool nsDoubleBufferCARenderer::HasCALayer() {
+ return !!mCALayer;
+}
+
+void nsDoubleBufferCARenderer::SetCALayer(void *aCALayer) {
+ mCALayer = aCALayer;
+}
+
+bool nsDoubleBufferCARenderer::InitFrontSurface(size_t aWidth, size_t aHeight,
+ double aContentsScaleFactor,
+ AllowOfflineRendererEnum aAllowOfflineRenderer) {
+ if (!mCALayer) {
+ return false;
+ }
+
+ mContentsScaleFactor = aContentsScaleFactor;
+ mFrontSurface = MacIOSurface::CreateIOSurface(aWidth, aHeight, mContentsScaleFactor);
+ if (!mFrontSurface) {
+ mCARenderer = nullptr;
+ return false;
+ }
+
+ if (!mCARenderer) {
+ mCARenderer = new nsCARenderer();
+ if (!mCARenderer) {
+ mFrontSurface = nullptr;
+ return false;
+ }
+
+ mCARenderer->AttachIOSurface(mFrontSurface);
+
+ nsresult result = mCARenderer->SetupRenderer(mCALayer,
+ mFrontSurface->GetWidth(),
+ mFrontSurface->GetHeight(),
+ mContentsScaleFactor,
+ aAllowOfflineRenderer);
+
+ if (result != NS_OK) {
+ mCARenderer = nullptr;
+ mFrontSurface = nullptr;
+ return false;
+ }
+ } else {
+ mCARenderer->AttachIOSurface(mFrontSurface);
+ }
+
+ return true;
+}
+
+void nsDoubleBufferCARenderer::Render() {
+ if (!HasFrontSurface() || !mCARenderer) {
+ return;
+ }
+
+ mCARenderer->Render(GetFrontSurfaceWidth(), GetFrontSurfaceHeight(),
+ mContentsScaleFactor, nullptr);
+}
+
+void nsDoubleBufferCARenderer::SwapSurfaces() {
+ RefPtr<MacIOSurface> prevFrontSurface = mFrontSurface;
+ mFrontSurface = mBackSurface;
+ mBackSurface = prevFrontSurface;
+
+ if (mFrontSurface) {
+ mCARenderer->AttachIOSurface(mFrontSurface);
+ }
+}
+
+void nsDoubleBufferCARenderer::ClearFrontSurface() {
+ mFrontSurface = nullptr;
+ if (!mFrontSurface && !mBackSurface) {
+ mCARenderer = nullptr;
+ }
+}
+
+void nsDoubleBufferCARenderer::ClearBackSurface() {
+ mBackSurface = nullptr;
+ if (!mFrontSurface && !mBackSurface) {
+ mCARenderer = nullptr;
+ }
+}
+
+} // namespace PluginUtilsOSX
+} // namespace plugins
+} // namespace mozilla
+