Jacek Caban : mshtml: Added proper support for weak references.
Module: wine Branch: master Commit: 86c28c9f89e85e4a0698cb11791878e2edf01b05 URL: http://source.winehq.org/git/wine.git/?a=commit;h=86c28c9f89e85e4a0698cb1179... Author: Jacek Caban <jacek(a)codeweavers.com> Date: Fri Apr 22 14:07:18 2011 +0200 mshtml: Added proper support for weak references. --- dlls/mshtml/mshtml_private.h | 9 ++- dlls/mshtml/nsembed.c | 138 ++++++++++++++++++++++++++++------------- 2 files changed, 101 insertions(+), 46 deletions(-) diff --git a/dlls/mshtml/mshtml_private.h b/dlls/mshtml/mshtml_private.h index 94dddad..1ba297b 100644 --- a/dlls/mshtml/mshtml_private.h +++ b/dlls/mshtml/mshtml_private.h @@ -42,8 +42,10 @@ #define NS_OK ((nsresult)0x00000000L) #define NS_ERROR_FAILURE ((nsresult)0x80004005L) #define NS_ERROR_OUT_OF_MEMORY ((nsresult)0x8007000EL) -#define NS_NOINTERFACE ((nsresult)0x80004002L) #define NS_ERROR_NOT_IMPLEMENTED ((nsresult)0x80004001L) +#define NS_NOINTERFACE ((nsresult)0x80004002L) +#define NS_ERROR_INVALID_POINTER ((nsresult)0x80004003L) +#define NS_ERROR_NULL_POINTER NS_ERROR_INVALID_POINTER #define NS_ERROR_NOT_AVAILABLE ((nsresult)0x80040111L) #define NS_ERROR_INVALID_ARG ((nsresult)0x80070057L) #define NS_ERROR_UNEXPECTED ((nsresult)0x8000ffffL) @@ -451,6 +453,8 @@ struct HTMLDocumentObj { DWORD update; }; +typedef struct nsWeakReference nsWeakReference; + struct NSContainer { nsIWebBrowserChrome nsIWebBrowserChrome_iface; nsIContextMenuListener nsIContextMenuListener_iface; @@ -458,7 +462,6 @@ struct NSContainer { nsIEmbeddingSiteWindow nsIEmbeddingSiteWindow_iface; nsITooltipListener nsITooltipListener_iface; nsIInterfaceRequestor nsIInterfaceRequestor_iface; - nsIWeakReference nsIWeakReference_iface; nsISupportsWeakReference nsISupportsWeakReference_iface; nsIWebBrowser *webbrowser; @@ -471,6 +474,8 @@ struct NSContainer { LONG ref; + nsWeakReference *weak_reference; + NSContainer *parent; HTMLDocumentObj *doc; diff --git a/dlls/mshtml/nsembed.c b/dlls/mshtml/nsembed.c index d6d666f..2cac2b2 100644 --- a/dlls/mshtml/nsembed.c +++ b/dlls/mshtml/nsembed.c @@ -19,6 +19,7 @@ #include "config.h" #include <stdarg.h> +#include <assert.h> #define COBJMACROS @@ -973,6 +974,83 @@ BOOL is_gecko_path(const char *path) return ret; } +struct nsWeakReference { + nsIWeakReference nsIWeakReference_iface; + + LONG ref; + + NSContainer *nscontainer; +}; + +static inline nsWeakReference *impl_from_nsIWeakReference(nsIWeakReference *iface) +{ + return CONTAINING_RECORD(iface, nsWeakReference, nsIWeakReference_iface); +} + +static nsresult NSAPI nsWeakReference_QueryInterface(nsIWeakReference *iface, + nsIIDRef riid, void **result) +{ + nsWeakReference *This = impl_from_nsIWeakReference(iface); + + if(IsEqualGUID(&IID_nsISupports, riid)) { + TRACE("(%p)->(IID_nsISupports %p)\n", This, result); + *result = &This->nsIWeakReference_iface; + }else if(IsEqualGUID(&IID_nsIWeakReference, riid)) { + TRACE("(%p)->(IID_nsIWeakReference %p)\n", This, result); + *result = &This->nsIWeakReference_iface; + }else { + WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), result); + *result = NULL; + return NS_NOINTERFACE; + } + + nsISupports_AddRef((nsISupports*)*result); + return NS_OK; +} + +static nsrefcnt NSAPI nsWeakReference_AddRef(nsIWeakReference *iface) +{ + nsWeakReference *This = impl_from_nsIWeakReference(iface); + LONG ref = InterlockedIncrement(&This->ref); + + TRACE("(%p) ref=%d\n", This, ref); + + return ref; +} + +static nsrefcnt NSAPI nsWeakReference_Release(nsIWeakReference *iface) +{ + nsWeakReference *This = impl_from_nsIWeakReference(iface); + LONG ref = InterlockedIncrement(&This->ref); + + TRACE("(%p) ref=%d\n", This, ref); + + if(!ref) { + assert(!This->nscontainer); + heap_free(This); + } + + return ref; +} + +static nsresult NSAPI nsWeakReference_QueryReferent(nsIWeakReference *iface, + const nsIID *riid, void **result) +{ + nsWeakReference *This = impl_from_nsIWeakReference(iface); + + if(!This->nscontainer) + return NS_ERROR_NULL_POINTER; + + return nsIWebBrowserChrome_QueryInterface(&This->nscontainer->nsIWebBrowserChrome_iface, riid, result); +} + +static const nsIWeakReferenceVtbl nsWeakReferenceVtbl = { + nsWeakReference_QueryInterface, + nsWeakReference_AddRef, + nsWeakReference_Release, + nsWeakReference_QueryReferent +}; + /********************************************************** * nsIWebBrowserChrome interface */ @@ -1009,9 +1087,6 @@ static nsresult NSAPI nsWebBrowserChrome_QueryInterface(nsIWebBrowserChrome *ifa }else if(IsEqualGUID(&IID_nsIInterfaceRequestor, riid)) { TRACE("(%p)->(IID_nsIInterfaceRequestor %p)\n", This, result); *result = &This->nsIInterfaceRequestor_iface; - }else if(IsEqualGUID(&IID_nsIWeakReference, riid)) { - TRACE("(%p)->(IID_nsIWeakReference %p)\n", This, result); - *result = &This->nsIWeakReference_iface; }else if(IsEqualGUID(&IID_nsISupportsWeakReference, riid)) { TRACE("(%p)->(IID_nsISupportsWeakReference %p)\n", This, result); *result = &This->nsISupportsWeakReference_iface; @@ -1046,6 +1121,10 @@ static nsrefcnt NSAPI nsWebBrowserChrome_Release(nsIWebBrowserChrome *iface) if(!ref) { if(This->parent) nsIWebBrowserChrome_Release(&This->parent->nsIWebBrowserChrome_iface); + if(This->weak_reference) { + This->weak_reference->nscontainer = NULL; + nsIWeakReference_Release(&This->weak_reference->nsIWeakReference_iface); + } heap_free(This); } @@ -1629,44 +1708,6 @@ static const nsIInterfaceRequestorVtbl nsInterfaceRequestorVtbl = { nsInterfaceRequestor_GetInterface }; -static inline NSContainer *impl_from_nsIWeakReference(nsIWeakReference *iface) -{ - return CONTAINING_RECORD(iface, NSContainer, nsIWeakReference_iface); -} - -static nsresult NSAPI nsWeakReference_QueryInterface(nsIWeakReference *iface, - nsIIDRef riid, void **result) -{ - NSContainer *This = impl_from_nsIWeakReference(iface); - return nsIWebBrowserChrome_QueryInterface(&This->nsIWebBrowserChrome_iface, riid, result); -} - -static nsrefcnt NSAPI nsWeakReference_AddRef(nsIWeakReference *iface) -{ - NSContainer *This = impl_from_nsIWeakReference(iface); - return nsIWebBrowserChrome_AddRef(&This->nsIWebBrowserChrome_iface); -} - -static nsrefcnt NSAPI nsWeakReference_Release(nsIWeakReference *iface) -{ - NSContainer *This = impl_from_nsIWeakReference(iface); - return nsIWebBrowserChrome_Release(&This->nsIWebBrowserChrome_iface); -} - -static nsresult NSAPI nsWeakReference_QueryReferent(nsIWeakReference *iface, - const nsIID *riid, void **result) -{ - NSContainer *This = impl_from_nsIWeakReference(iface); - return nsIWebBrowserChrome_QueryInterface(&This->nsIWebBrowserChrome_iface, riid, result); -} - -static const nsIWeakReferenceVtbl nsWeakReferenceVtbl = { - nsWeakReference_QueryInterface, - nsWeakReference_AddRef, - nsWeakReference_Release, - nsWeakReference_QueryReferent -}; - static inline NSContainer *impl_from_nsISupportsWeakReference(nsISupportsWeakReference *iface) { return CONTAINING_RECORD(iface, NSContainer, nsISupportsWeakReference_iface); @@ -1698,8 +1739,18 @@ static nsresult NSAPI nsSupportsWeakReference_GetWeakReference(nsISupportsWeakRe TRACE("(%p)->(%p)\n", This, _retval); - nsIWeakReference_AddRef(&This->nsIWeakReference_iface); - *_retval = &This->nsIWeakReference_iface; + if(!This->weak_reference) { + This->weak_reference = heap_alloc(sizeof(nsWeakReference)); + if(!This->weak_reference) + return NS_ERROR_OUT_OF_MEMORY; + + This->weak_reference->nsIWeakReference_iface.lpVtbl = &nsWeakReferenceVtbl; + This->weak_reference->ref = 1; + This->weak_reference->nscontainer = This; + } + + *_retval = &This->weak_reference->nsIWeakReference_iface; + nsIWeakReference_AddRef(*_retval); return NS_OK; } @@ -1740,7 +1791,6 @@ NSContainer *NSContainer_Create(HTMLDocumentObj *doc, NSContainer *parent) ret->nsIEmbeddingSiteWindow_iface.lpVtbl = &nsEmbeddingSiteWindowVtbl; ret->nsITooltipListener_iface.lpVtbl = &nsTooltipListenerVtbl; ret->nsIInterfaceRequestor_iface.lpVtbl = &nsInterfaceRequestorVtbl; - ret->nsIWeakReference_iface.lpVtbl = &nsWeakReferenceVtbl; ret->nsISupportsWeakReference_iface.lpVtbl = &nsSupportsWeakReferenceVtbl; ret->doc = doc;
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Alexandre Julliard