gecko-dev/widget/nsScreenManagerProxy.h
Nathan Froyd 01583602a9 Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat
The bulk of this commit was generated with a script, executed at the top
level of a typical source code checkout.  The only non-machine-generated
part was modifying MFBT's moz.build to reflect the new naming.

CLOSED TREE makes big refactorings like this a piece of cake.

 # The main substitution.
find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \
    xargs perl -p -i -e '
 s/nsRefPtr\.h/RefPtr\.h/g; # handle includes
 s/nsRefPtr ?</RefPtr</g;   # handle declarations and variables
'

 # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h.
perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h

 # Handle nsRefPtr.h itself, a couple places that define constructors
 # from nsRefPtr, and code generators specially.  We do this here, rather
 # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename
 # things like nsRefPtrHashtable.
perl -p -i -e 's/nsRefPtr/RefPtr/g' \
     mfbt/nsRefPtr.h \
     xpcom/glue/nsCOMPtr.h \
     xpcom/base/OwningNonNull.h \
     ipc/ipdl/ipdl/lower.py \
     ipc/ipdl/ipdl/builtin.py \
     dom/bindings/Codegen.py \
     python/lldbutils/lldbutils/utils.py

 # In our indiscriminate substitution above, we renamed
 # nsRefPtrGetterAddRefs, the class behind getter_AddRefs.  Fix that up.
find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \
    xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g'

if [ -d .git ]; then
    git mv mfbt/nsRefPtr.h mfbt/RefPtr.h
else
    hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h
fi

--HG--
rename : mfbt/nsRefPtr.h => mfbt/RefPtr.h
2015-10-18 01:24:48 -04:00

68 lines
2.1 KiB
C++

/* -*- Mode: C++; tab-width: 2; 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
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsScreenManagerProxy_h
#define nsScreenManagerProxy_h
#include "nsIScreenManager.h"
#include "mozilla/dom/PScreenManagerChild.h"
#include "mozilla/dom/TabChild.h"
#include "ScreenProxy.h"
/**
* The nsScreenManagerProxy is used by the content process to get
* information about system screens. It uses the PScreenManager protocol
* to communicate with a PScreenManagerParent to get this information,
* and also caches the information it gets back.
*
* We cache both the system screen information that nsIScreenManagers
* provide, as well as the nsIScreens that callers can query for.
*
* Both of these caches are invalidated on the next tick of the event
* loop.
*/
class nsScreenManagerProxy final : public nsIScreenManager,
public mozilla::dom::PScreenManagerChild
{
public:
nsScreenManagerProxy();
NS_DECL_ISUPPORTS
NS_DECL_NSISCREENMANAGER
private:
~nsScreenManagerProxy() {};
bool EnsureCacheIsValid();
void InvalidateCacheOnNextTick();
void InvalidateCache();
uint32_t mNumberOfScreens;
float mSystemDefaultScale;
bool mCacheValid;
bool mCacheWillInvalidate;
RefPtr<mozilla::widget::ScreenProxy> mPrimaryScreen;
// nsScreenManagerProxy caches the results to repeated calls to
// ScreenForNativeWidget, which can be triggered indirectly by
// web content using the DOM Screen API. This allows us to bypass
// a lot of IPC traffic.
//
// The cache stores ScreenProxy's mapped to the TabChild that
// asked for the ScreenForNativeWidget was called with via
// ScreenCacheEntry's. The cache is cleared on the next tick of
// the event loop.
struct ScreenCacheEntry
{
RefPtr<mozilla::widget::ScreenProxy> mScreenProxy;
RefPtr<mozilla::dom::TabChild> mTabChild;
};
nsTArray<ScreenCacheEntry> mScreenCache;
};
#endif // nsScreenManagerProxy_h