Bommels05/Mozilla
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fixing bug 113264 -- making NPPrint struct compatible with older versions of plugins, r=peterl, sr=beard

Browse Source 
git-svn-id: svn://10.0.0.236/trunk@110061 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
av%netscape.com
2001-12-08 01:13:05 +00:00
parent 09f88c4ade
commit 225400d1aa
1 changed files with 20 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
mozilla/modules/plugin/base/src/ns4xPluginInstance.cpp
View File

@@ -989,6 +989,26 @@ NS_IMETHODIMP ns4xPluginInstance::Print(nsPluginPrint* platformPrint)
NPPrint* thePrint = (NPPrint *)platformPrint;
// to be compatible with the older SDK versions and to match what
// 4.x and other browsers do, overwrite |window.type| field with one
// more copy of |platformPrint|. See bug 113264
if(fCallbacks) {
PRUint16 sdkmajorversion = (fCallbacks->version & 0xff00)>>8;
PRUint16 sdkminorversion = fCallbacks->version & 0x00ff;
if((sdkmajorversion == 0) && (sdkminorversion < 11)) {
// Let's copy platformPrint bytes over to where it was supposed to be
// in older versions -- four bytes towards the beginning of the struct
// but we should be careful about possible misalignments
if(sizeof(NPWindowType) >= sizeof(void *)) {
void* source = thePrint->print.embedPrint.platformPrint;
void** destination = (void **)&(thePrint->print.embedPrint.window.type);
*destination = source;
}
else
NS_ASSERTION(PR_FALSE, "Incompatible OS for assignment");
}
}
NS_TRY_SAFE_CALL_VOID(CallNPP_PrintProc(fCallbacks->print,
&fNPP,
thePrint), fLibrary);