render_loadcss.cpp

monqueror一个很具有参考价值的源玛

#include <assert.h>
#include "render_interface.h"
#include "string.h"

#include <minigui/window.h>
#include "../css/css_valueimpl.h"

#include "render_cachecss.h"
#include "render_loadcss.h"
#include "mgmessage.h"

#define DEBUG_BY_XHTANG 0

using namespace DOM;
using namespace khtml;


MGCSSLoader::MGCSSLoader()
{
	setType(MGLOADERTYPE_CSS);
}	
MGCSSLoader::~MGCSSLoader()
{
}

bool MGCSSLoader::LoadedMsgFromNet( unsigned char *url ,unsigned char *buf,int length)
{
	char s[URL_TEMPNAMELENGTH];
	if(!MGLoadObject::LoadedMsgFromNet(url,buf,length,s))return 0;
		
	DOM::CSSImportRuleImpl *cssIRImpl=0;
	MGCachedCSSStyleSheet *cachedCSS=0;
	FromUrlLoaded(url,&cssIRImpl,&cachedCSS);
	if(cachedCSS)cachedCSS->LoadDataFromTempFile(s);
//	if(cssIRImpl);//should be added later
//	if(m_req.isEmpty())
//		SendNotifyMessage(m_hWnd, MSG_IMAGELAYOUT ,0,0);

	return 1;
}
void MGCSSLoader::FromUrlLoaded( unsigned char *url ,DOM::CSSImportRuleImpl **cssIRImpl,MGCachedCSSStyleSheet **cachedCSS)
{
	bool bFind=SeekLoadListByUrl(url);
	*cssIRImpl=bFind?(m_load.current())->cssIRImpl:0;
	*cachedCSS=bFind?(m_load.current())->cachedCSS:0;
}

MGCachedCSSStyleSheet* MGCSSLoader::RequestCSSStyleSheet(DOM::DOMString& murl, unsigned char *url )
{
//	return	new MGCachedCSSStyleSheet(murl);//just for test www.w3.org
	
//fprintf(stderr,"MGCSSLoader:%s\n",url);
	char s[URL_TEMPNAMELENGTH+1],t[URL_TEMPNAMELENGTH+1];
	if(isLocalFile(url)){
		return new MGCachedCSSStyleSheet( murl,url);
		}
	if(isLoaded(url)){
		strcpy(s,m_load.current()->TempName);
		CompleteTempName(s);
		return new MGCachedCSSStyleSheet( murl,(unsigned char*)s);
		}
	if(isRequested(url))
		return 0;
	strcpy(s,"sty-");
	sprintf(t,"%d",++m_nRequested);
	strcat(s,t);
	if(strlen((char *)url)>=4&&*(url+strlen((char *)url)-4)=='.')
		strcat(s,(char *)url+strlen((char *)url)-4);
	else
		strcat(s,".css");
		
	LoadUrlStruct *rus=new LoadUrlStruct();
//	strcpy(rus->url,url);
	strncpy((char *)rus->url,(char *)url,URL_STRINGMAXLENGTH);
	rus->url[URL_STRINGMAXLENGTH] = 0;
	strncpy(rus->TempName,s,URL_TEMPNAMELENGTH);
//	m_req.append(rus);
//	RequestMsgToNet(rus->url);
	
	MGCachedCSSStyleSheet* cachedCSS= new MGCachedCSSStyleSheet(murl);
	rus->cachedCSS = cachedCSS;
	rus->cssIRImpl = 0;
	m_req.append(rus);
	RequestMsgToNet(rus->url);
	return cachedCSS;
}