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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include "AndroidSystemFontIterator.h"
#include "mozilla/Assertions.h"
#include "nsDebug.h"
#include <dlfcn.h>
namespace mozilla {
_ASystemFontIterator_open AndroidSystemFontIterator::sSystemFontIterator_open =
nullptr;
_ASystemFontIterator_next AndroidSystemFontIterator::sSystemFontIterator_next =
nullptr;
_ASystemFontIterator_close
AndroidSystemFontIterator::sSystemFontIterator_close = nullptr;
_AFont_getFontFilePath AndroidFont::sFont_getFontFilePath = nullptr;
_AFont_close AndroidFont::sFont_close = nullptr;
AndroidSystemFontIterator::~AndroidSystemFontIterator() {
if (!sSystemFontIterator_open) {
return;
}
if (!mIterator) {
return;
}
sSystemFontIterator_close(mIterator);
}
bool AndroidSystemFontIterator::Init() {
if (!sSystemFontIterator_open) {
void* handle = dlopen("libandroid.so", RTLD_LAZY | RTLD_LOCAL);
MOZ_ASSERT(handle);
sSystemFontIterator_open =
(_ASystemFontIterator_open)dlsym(handle, "ASystemFontIterator_open");
sSystemFontIterator_next =
(_ASystemFontIterator_next)dlsym(handle, "ASystemFontIterator_next");
sSystemFontIterator_close =
(_ASystemFontIterator_close)dlsym(handle, "ASystemFontIterator_close");
AndroidFont::sFont_getFontFilePath =
(_AFont_getFontFilePath)dlsym(handle, "AFont_getFontFilePath");
AndroidFont::sFont_close = (_AFont_close)dlsym(handle, "AFont_close");
if (NS_WARN_IF(!sSystemFontIterator_open) ||
NS_WARN_IF(!sSystemFontIterator_next) ||
NS_WARN_IF(!sSystemFontIterator_close) ||
NS_WARN_IF(!AndroidFont::sFont_getFontFilePath) ||
NS_WARN_IF(!AndroidFont::sFont_close)) {
sSystemFontIterator_open = nullptr;
return false;
}
}
mIterator = sSystemFontIterator_open();
return true;
}
Maybe<AndroidFont> AndroidSystemFontIterator::Next() {
if (NS_WARN_IF(!sSystemFontIterator_open)) {
return Nothing();
}
if (!mIterator) {
return Nothing();
}
void* font = sSystemFontIterator_next(mIterator);
if (!font) {
sSystemFontIterator_close(mIterator);
mIterator = nullptr;
return Nothing();
}
return Some(AndroidFont(font));
}
AndroidFont::~AndroidFont() {
if (NS_WARN_IF(!sFont_close)) {
return;
}
if (!mFont) {
return;
}
sFont_close(mFont);
}
const char* AndroidFont::GetFontFilePath() {
if (NS_WARN_IF(!sFont_getFontFilePath) || NS_WARN_IF(!mFont)) {
return nullptr;
}
return sFont_getFontFilePath(mFont);
}
} // namespace mozilla