michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsFontFace.h"
michael@0: #include "nsIDOMCSSFontFaceRule.h"
michael@0: #include "nsCSSRules.h"
michael@0: #include "gfxFont.h"
michael@0: #include "gfxUserFontSet.h"
michael@0: #include "nsFontFaceLoader.h"
michael@0: #include "mozilla/gfx/2D.h"
michael@0: #include "zlib.h"
michael@0: 
michael@0: nsFontFace::nsFontFace(gfxFontEntry*      aFontEntry,
michael@0:                        gfxFontGroup*      aFontGroup,
michael@0:                        uint8_t            aMatchType)
michael@0:   : mFontEntry(aFontEntry),
michael@0:     mFontGroup(aFontGroup),
michael@0:     mMatchType(aMatchType)
michael@0: {
michael@0: }
michael@0: 
michael@0: nsFontFace::~nsFontFace()
michael@0: {
michael@0: }
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////
michael@0: // nsISupports
michael@0: 
michael@0: NS_IMPL_ISUPPORTS(nsFontFace, nsIDOMFontFace)
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////
michael@0: // nsIDOMFontFace
michael@0: 
michael@0: /* readonly attribute boolean fromFontGroup; */
michael@0: NS_IMETHODIMP
michael@0: nsFontFace::GetFromFontGroup(bool * aFromFontGroup)
michael@0: {
michael@0:   *aFromFontGroup =
michael@0:     (mMatchType & gfxTextRange::kFontGroup) != 0;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: /* readonly attribute boolean fromLanguagePrefs; */
michael@0: NS_IMETHODIMP
michael@0: nsFontFace::GetFromLanguagePrefs(bool * aFromLanguagePrefs)
michael@0: {
michael@0:   *aFromLanguagePrefs =
michael@0:     (mMatchType & gfxTextRange::kPrefsFallback) != 0;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: /* readonly attribute boolean fromSystemFallback; */
michael@0: NS_IMETHODIMP
michael@0: nsFontFace::GetFromSystemFallback(bool * aFromSystemFallback)
michael@0: {
michael@0:   *aFromSystemFallback =
michael@0:     (mMatchType & gfxTextRange::kSystemFallback) != 0;
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: /* readonly attribute DOMString name; */
michael@0: NS_IMETHODIMP
michael@0: nsFontFace::GetName(nsAString & aName)
michael@0: {
michael@0:   if (mFontEntry->IsUserFont() && !mFontEntry->IsLocalUserFont()) {
michael@0:     NS_ASSERTION(mFontEntry->mUserFontData, "missing userFontData");
michael@0:     aName = mFontEntry->mUserFontData->mRealName;
michael@0:   } else {
michael@0:     aName = mFontEntry->RealFaceName();
michael@0:   }
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: /* readonly attribute DOMString CSSFamilyName; */
michael@0: NS_IMETHODIMP
michael@0: nsFontFace::GetCSSFamilyName(nsAString & aCSSFamilyName)
michael@0: {
michael@0:   aCSSFamilyName = mFontEntry->FamilyName();
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: /* readonly attribute nsIDOMCSSFontFaceRule rule; */
michael@0: NS_IMETHODIMP
michael@0: nsFontFace::GetRule(nsIDOMCSSFontFaceRule **aRule)
michael@0: {
michael@0:   // check whether this font entry is associated with an @font-face rule
michael@0:   // in the relevant font group's user font set
michael@0:   nsCSSFontFaceRule* rule = nullptr;
michael@0:   if (mFontEntry->IsUserFont()) {
michael@0:     nsUserFontSet* fontSet =
michael@0:       static_cast<nsUserFontSet*>(mFontGroup->GetUserFontSet());
michael@0:     if (fontSet) {
michael@0:       rule = fontSet->FindRuleForEntry(mFontEntry);
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   NS_IF_ADDREF(*aRule = rule);
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: /* readonly attribute long srcIndex; */
michael@0: NS_IMETHODIMP
michael@0: nsFontFace::GetSrcIndex(int32_t * aSrcIndex)
michael@0: {
michael@0:   if (mFontEntry->IsUserFont()) {
michael@0:     NS_ASSERTION(mFontEntry->mUserFontData, "missing userFontData");
michael@0:     *aSrcIndex = mFontEntry->mUserFontData->mSrcIndex;
michael@0:   } else {
michael@0:     *aSrcIndex = -1;
michael@0:   }
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: /* readonly attribute DOMString URI; */
michael@0: NS_IMETHODIMP
michael@0: nsFontFace::GetURI(nsAString & aURI)
michael@0: {
michael@0:   aURI.Truncate();
michael@0:   if (mFontEntry->IsUserFont() && !mFontEntry->IsLocalUserFont()) {
michael@0:     NS_ASSERTION(mFontEntry->mUserFontData, "missing userFontData");
michael@0:     if (mFontEntry->mUserFontData->mURI) {
michael@0:       nsAutoCString spec;
michael@0:       mFontEntry->mUserFontData->mURI->GetSpec(spec);
michael@0:       AppendUTF8toUTF16(spec, aURI);
michael@0:     }
michael@0:   }
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: /* readonly attribute DOMString localName; */
michael@0: NS_IMETHODIMP
michael@0: nsFontFace::GetLocalName(nsAString & aLocalName)
michael@0: {
michael@0:   if (mFontEntry->IsLocalUserFont()) {
michael@0:     NS_ASSERTION(mFontEntry->mUserFontData, "missing userFontData");
michael@0:     aLocalName = mFontEntry->mUserFontData->mLocalName;
michael@0:   } else {
michael@0:     aLocalName.Truncate();
michael@0:   }
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: /* readonly attribute DOMString format; */
michael@0: static void
michael@0: AppendToFormat(nsAString & aResult, const char* aFormat)
michael@0: {
michael@0:   if (!aResult.IsEmpty()) {
michael@0:     aResult.Append(',');
michael@0:   }
michael@0:   aResult.AppendASCII(aFormat);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsFontFace::GetFormat(nsAString & aFormat)
michael@0: {
michael@0:   aFormat.Truncate();
michael@0:   if (mFontEntry->IsUserFont() && !mFontEntry->IsLocalUserFont()) {
michael@0:     NS_ASSERTION(mFontEntry->mUserFontData, "missing userFontData");
michael@0:     uint32_t formatFlags = mFontEntry->mUserFontData->mFormat;
michael@0:     if (formatFlags & gfxUserFontSet::FLAG_FORMAT_OPENTYPE) {
michael@0:       AppendToFormat(aFormat, "opentype");
michael@0:     }
michael@0:     if (formatFlags & gfxUserFontSet::FLAG_FORMAT_TRUETYPE) {
michael@0:       AppendToFormat(aFormat, "truetype");
michael@0:     }
michael@0:     if (formatFlags & gfxUserFontSet::FLAG_FORMAT_TRUETYPE_AAT) {
michael@0:       AppendToFormat(aFormat, "truetype-aat");
michael@0:     }
michael@0:     if (formatFlags & gfxUserFontSet::FLAG_FORMAT_EOT) {
michael@0:       AppendToFormat(aFormat, "embedded-opentype");
michael@0:     }
michael@0:     if (formatFlags & gfxUserFontSet::FLAG_FORMAT_SVG) {
michael@0:       AppendToFormat(aFormat, "svg");
michael@0:     }
michael@0:     if (formatFlags & gfxUserFontSet::FLAG_FORMAT_WOFF) {
michael@0:       AppendToFormat(aFormat, "woff");
michael@0:     }
michael@0:   }
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: /* readonly attribute DOMString metadata; */
michael@0: NS_IMETHODIMP
michael@0: nsFontFace::GetMetadata(nsAString & aMetadata)
michael@0: {
michael@0:   aMetadata.Truncate();
michael@0:   if (mFontEntry->IsUserFont() && !mFontEntry->IsLocalUserFont()) {
michael@0:     NS_ASSERTION(mFontEntry->mUserFontData, "missing userFontData");
michael@0:     const gfxUserFontData* userFontData = mFontEntry->mUserFontData;
michael@0:     if (userFontData->mMetadata.Length() && userFontData->mMetaOrigLen) {
michael@0:       nsAutoCString str;
michael@0:       str.SetLength(userFontData->mMetaOrigLen);
michael@0:       if (str.Length() == userFontData->mMetaOrigLen) {
michael@0:         uLongf destLen = userFontData->mMetaOrigLen;
michael@0:         if (uncompress((Bytef *)(str.BeginWriting()), &destLen,
michael@0:                        (const Bytef *)(userFontData->mMetadata.Elements()),
michael@0:                        userFontData->mMetadata.Length()) == Z_OK &&
michael@0:             destLen == userFontData->mMetaOrigLen)
michael@0:         {
michael@0:           AppendUTF8toUTF16(str, aMetadata);
michael@0:         }
michael@0:       }
michael@0:     }
michael@0:   }
michael@0:   return NS_OK;
michael@0: }