michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 "nsThebesFontEnumerator.h"
michael@0: #include <stdint.h>                     // for uint32_t
michael@0: #include "gfxPlatform.h"                // for gfxPlatform
michael@0: #include "mozilla/Assertions.h"         // for MOZ_ASSERT_HELPER2
michael@0: #include "nsCOMPtr.h"                   // for nsCOMPtr
michael@0: #include "nsDebug.h"                    // for NS_ENSURE_ARG_POINTER
michael@0: #include "nsError.h"                    // for NS_OK, NS_FAILED, nsresult
michael@0: #include "nsIAtom.h"                    // for nsIAtom, do_GetAtom
michael@0: #include "nsID.h"
michael@0: #include "nsMemory.h"                   // for nsMemory
michael@0: #include "nsString.h"               // for nsAutoCString, nsAutoString, etc
michael@0: #include "nsTArray.h"                   // for nsTArray, nsTArray_Impl, etc
michael@0: #include "nscore.h"                     // for char16_t, NS_IMETHODIMP
michael@0: 
michael@0: NS_IMPL_ISUPPORTS(nsThebesFontEnumerator, nsIFontEnumerator)
michael@0: 
michael@0: nsThebesFontEnumerator::nsThebesFontEnumerator()
michael@0: {
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsThebesFontEnumerator::EnumerateAllFonts(uint32_t *aCount,
michael@0:                                           char16_t ***aResult)
michael@0: {
michael@0:     return EnumerateFonts (nullptr, nullptr, aCount, aResult);
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsThebesFontEnumerator::EnumerateFonts(const char *aLangGroup,
michael@0:                                        const char *aGeneric,
michael@0:                                        uint32_t *aCount,
michael@0:                                        char16_t ***aResult)
michael@0: {
michael@0:     NS_ENSURE_ARG_POINTER(aCount);
michael@0:     NS_ENSURE_ARG_POINTER(aResult);
michael@0: 
michael@0:     nsTArray<nsString> fontList;
michael@0: 
michael@0:     nsAutoCString generic;
michael@0:     if (aGeneric)
michael@0:         generic.Assign(aGeneric);
michael@0:     else
michael@0:         generic.SetIsVoid(true);
michael@0: 
michael@0:     nsCOMPtr<nsIAtom> langGroupAtom;
michael@0:     if (aLangGroup) {
michael@0:         nsAutoCString lowered;
michael@0:         lowered.Assign(aLangGroup);
michael@0:         ToLowerCase(lowered);
michael@0:         langGroupAtom = do_GetAtom(lowered);
michael@0:     }
michael@0: 
michael@0:     nsresult rv = gfxPlatform::GetPlatform()->GetFontList(langGroupAtom, generic, fontList);
michael@0: 
michael@0:     if (NS_FAILED(rv)) {
michael@0:         *aCount = 0;
michael@0:         *aResult = nullptr;
michael@0:         /* XXX in this case, do we want to return the CSS generics? */
michael@0:         return NS_OK;
michael@0:     }
michael@0: 
michael@0:     char16_t **fs = static_cast<char16_t **>
michael@0:                                 (nsMemory::Alloc(fontList.Length() * sizeof(char16_t*)));
michael@0:     for (uint32_t i = 0; i < fontList.Length(); i++) {
michael@0:         fs[i] = ToNewUnicode(fontList[i]);
michael@0:     }
michael@0: 
michael@0:     *aResult = fs;
michael@0:     *aCount = fontList.Length();
michael@0: 
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsThebesFontEnumerator::HaveFontFor(const char *aLangGroup,
michael@0:                                     bool *aResult)
michael@0: {
michael@0:     NS_ENSURE_ARG_POINTER(aResult);
michael@0: 
michael@0:     *aResult = true;
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsThebesFontEnumerator::GetDefaultFont(const char *aLangGroup,
michael@0:                                        const char *aGeneric,
michael@0:                                        char16_t **aResult)
michael@0: {
michael@0:     NS_ENSURE_ARG_POINTER(aResult);
michael@0:     *aResult = nullptr;
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsThebesFontEnumerator::UpdateFontList(bool *_retval)
michael@0: {
michael@0:     gfxPlatform::GetPlatform()->UpdateFontList();
michael@0:     *_retval = false; // always return false for now
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsThebesFontEnumerator::GetStandardFamilyName(const char16_t *aName,
michael@0:                                               char16_t **aResult)
michael@0: {
michael@0:     NS_ENSURE_ARG_POINTER(aResult);
michael@0:     NS_ENSURE_ARG_POINTER(aName);
michael@0: 
michael@0:     nsAutoString name(aName);
michael@0:     if (name.IsEmpty()) {
michael@0:         *aResult = nullptr;
michael@0:         return NS_OK;
michael@0:     }
michael@0: 
michael@0:     nsAutoString family;
michael@0:     nsresult rv = gfxPlatform::GetPlatform()->
michael@0:         GetStandardFamilyName(nsDependentString(aName), family);
michael@0:     if (NS_FAILED(rv) || family.IsEmpty()) {
michael@0:         *aResult = nullptr;
michael@0:         return NS_OK;
michael@0:     }
michael@0:     *aResult = ToNewUnicode(family);
michael@0:     return NS_OK;
michael@0: }