95 lines
2.2 KiB
C++
95 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "AndroidSystemFontIterator.h"
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#include "mozilla/Assertions.h"
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#include "nsDebug.h"
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#include <android/system_fonts.h>
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namespace mozilla {
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_ASystemFontIterator_open AndroidSystemFontIterator::sSystemFontIterator_open =
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nullptr;
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_ASystemFontIterator_next AndroidSystemFontIterator::sSystemFontIterator_next =
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nullptr;
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_ASystemFontIterator_close
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AndroidSystemFontIterator::sSystemFontIterator_close = nullptr;
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_AFont_getFontFilePath AndroidFont::sFont_getFontFilePath = nullptr;
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_AFont_close AndroidFont::sFont_close = nullptr;
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AndroidSystemFontIterator::~AndroidSystemFontIterator() {
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if (!sSystemFontIterator_open) {
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return;
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}
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if (!mIterator) {
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return;
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}
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sSystemFontIterator_close(mIterator);
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}
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bool AndroidSystemFontIterator::Init() {
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if (!sSystemFontIterator_open) {
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if (__builtin_available(android 29, *)) {
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sSystemFontIterator_open = ASystemFontIterator_open;
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sSystemFontIterator_next = ASystemFontIterator_next;
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sSystemFontIterator_close = ASystemFontIterator_close;
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AndroidFont::sFont_getFontFilePath = AFont_getFontFilePath;
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AndroidFont::sFont_close = AFont_close;
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} else {
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return NS_WARN_IF(false);
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}
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}
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mIterator = sSystemFontIterator_open();
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return true;
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}
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Maybe<AndroidFont> AndroidSystemFontIterator::Next() {
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if (NS_WARN_IF(!sSystemFontIterator_open)) {
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return Nothing();
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}
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if (!mIterator) {
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return Nothing();
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}
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AFont* font = sSystemFontIterator_next(mIterator);
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if (!font) {
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sSystemFontIterator_close(mIterator);
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mIterator = nullptr;
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return Nothing();
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}
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return Some(AndroidFont(font));
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}
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AndroidFont::~AndroidFont() {
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if (NS_WARN_IF(!sFont_close)) {
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return;
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}
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if (!mFont) {
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return;
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}
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sFont_close(mFont);
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}
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const char* AndroidFont::GetFontFilePath() {
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if (NS_WARN_IF(!sFont_getFontFilePath) || NS_WARN_IF(!mFont)) {
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return nullptr;
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}
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return sFont_getFontFilePath(mFont);
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}
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} // namespace mozilla
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