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#include <config.h>
#include <unistd.h>
#include <glib.h>
#include <imgICache.h>
#include <nsComponentManagerUtils.h>
#include <nsCOMPtr.h>
#include <nsIDOMHTMLElement.h>
#include <nsIInterfaceRequestorUtils.h>
#include <nsIIOService.h>
#include <nsILocalFile.h>
#include <nsIMIMEHeaderParam.h>
#include <nsIProperties.h>
#include <nsISupportsPrimitives.h>
#include <nsIURI.h>
#include <nsIURL.h>
#include <nsServiceManagerUtils.h>
#include <nsStringAPI.h>
#include "GeckoDocumentObject.h"
#include "GeckoBrowserPersist.h"
GeckoDocumentObject::GeckoDocumentObject(SugarBrowser *browser, nsIDOMNode *node)
: mBrowser(browser),
mNode(node),
mImage(NULL)
{
}
GeckoDocumentObject::~GeckoDocumentObject()
{
}
bool GeckoDocumentObject::IsImage()
{
if(mImage) {
return true;
}
nsresult rv;
PRUint16 type;
rv = mNode->GetNodeType(&type);
if(NS_FAILED(rv)) return rv;
nsCOMPtr<nsIDOMHTMLElement> element = do_QueryInterface(mNode);
if ((nsIDOMNode::ELEMENT_NODE == type) && element) {
nsString uTag;
rv = element->GetLocalName(uTag);
if(NS_FAILED(rv)) return rv;
nsCString tag;
NS_UTF16ToCString (uTag, NS_CSTRING_ENCODING_UTF8, tag);
if (g_ascii_strcasecmp (tag.get(), "img") == 0) {
nsCOMPtr <nsIDOMHTMLImageElement> imagePtr;
imagePtr = do_QueryInterface(mNode, &rv);
if(NS_FAILED(rv)) return rv;
mImage = imagePtr;
return true;
}
}
return false;
}
static nsresult
NewURI(const char *uri, nsIURI **result)
{
nsresult rv;
nsCOMPtr<nsIServiceManager> mgr;
NS_GetServiceManager (getter_AddRefs (mgr));
NS_ENSURE_TRUE(mgr, FALSE);
nsCOMPtr<nsIIOService> ioService;
rv = mgr->GetServiceByContractID ("@mozilla.org/network/io-service;1",
NS_GET_IID (nsIIOService),
getter_AddRefs(ioService));
NS_ENSURE_SUCCESS(rv, FALSE);
nsCString cSpec(uri);
return ioService->NewURI (cSpec, nsnull, nsnull, result);
}
static nsresult
FilenameFromContentDisposition(nsCString contentDisposition, nsCString &fileName)
{
nsresult rv;
nsCString fallbackCharset;
nsCOMPtr<nsIMIMEHeaderParam> mimehdrpar =
do_GetService("@mozilla.org/network/mime-hdrparam;1");
NS_ENSURE_TRUE(mimehdrpar, NS_ERROR_FAILURE);
nsString aFileName;
rv = mimehdrpar->GetParameter (contentDisposition, "filename",
fallbackCharset, PR_TRUE, nsnull,
aFileName);
if (NS_FAILED(rv) || !fileName.Length()) {
rv = mimehdrpar->GetParameter (contentDisposition, "name",
fallbackCharset, PR_TRUE, nsnull,
aFileName);
}
if (NS_SUCCEEDED(rv) && fileName.Length()) {
NS_UTF16ToCString (aFileName, NS_CSTRING_ENCODING_UTF8, fileName);
}
return NS_OK;
}
static nsresult
GetImageProperties(char *imgURIStr, nsIProperties **properties)
{
nsresult rv;
nsCOMPtr<nsIURI> imageURI;
rv = NewURI(imgURIStr, getter_AddRefs(imageURI));
if(NS_FAILED(rv)) return rv;
nsCOMPtr<nsIServiceManager> mgr;
NS_GetServiceManager(getter_AddRefs(mgr));
NS_ENSURE_TRUE(mgr, NS_ERROR_FAILURE);
nsCOMPtr<imgICache> imgCache;
rv = mgr->GetServiceByContractID("@mozilla.org/image/cache;1",
NS_GET_IID(imgICache),
getter_AddRefs(imgCache));
if(NS_FAILED(rv)) return rv;
imgCache->FindEntryProperties(imageURI, properties);
NS_ENSURE_TRUE(mgr, NS_ERROR_FAILURE);
return NS_OK;
}
char *
GeckoDocumentObject::GetImageName()
{
if(!IsImage()) {
return NULL;
}
if(mImageName.Length()) {
return g_strdup(mImageName.get());
}
nsresult rv;
char *imgURIStr = GetImageURI();
nsCOMPtr<nsIProperties> imgProperties;
rv = GetImageProperties(imgURIStr, getter_AddRefs(imgProperties));
NS_ENSURE_SUCCESS(rv, NULL);
if (imgProperties) {
nsCOMPtr<nsISupportsCString> dispositionCString;
imgProperties->Get("content-disposition",
NS_GET_IID(nsISupportsCString),
getter_AddRefs(dispositionCString));
if (dispositionCString) {
nsCString contentDisposition;
dispositionCString->GetData(contentDisposition);
FilenameFromContentDisposition(contentDisposition, mImageName);
}
}
if (!mImageName.Length()) {
nsCOMPtr<nsIURI> imageURI;
rv = NewURI(imgURIStr, getter_AddRefs(imageURI));
NS_ENSURE_SUCCESS(rv, NULL);
nsCOMPtr<nsIURL> url(do_QueryInterface(imageURI));
if (url) {
url->GetFileName(mImageName);
}
}
return mImageName.Length() ? g_strdup(mImageName.get()) : NULL;
}
char *
GeckoDocumentObject::GetImageMimeType()
{
if(!IsImage()) {
return NULL;
}
if(mImageMimeType.Length()) {
return g_strdup(mImageMimeType.get());
}
nsresult rv;
char *imgURIStr = GetImageURI();
nsCOMPtr<nsIProperties> imgProperties;
rv = GetImageProperties(imgURIStr, getter_AddRefs(imgProperties));
NS_ENSURE_SUCCESS(rv, NULL);
if (imgProperties) {
nsCOMPtr<nsISupportsCString> typeCString;
imgProperties->Get("type",
NS_GET_IID(nsISupportsCString),
getter_AddRefs(typeCString));
if (typeCString) {
typeCString->GetData(mImageMimeType);
}
}
return mImageMimeType.Length() ? g_strdup(mImageMimeType.get()) : NULL;
}
char *
GeckoDocumentObject::GetImageURI()
{
if(!IsImage()) {
return NULL;
}
if(!mImageURI.Length()) {
nsresult rv;
nsString img;
rv = mImage->GetSrc(img);
if (NS_FAILED(rv)) return NULL;
NS_UTF16ToCString (img, NS_CSTRING_ENCODING_UTF8, mImageURI);
}
return g_strdup(mImageURI.get());
}
bool
GeckoDocumentObject::SaveImage(const char *filename)
{
GeckoBrowserPersist browserPersist(mBrowser);
return browserPersist.SaveURI(mImageURI.get(), filename);
}
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