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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/base/ime/linux/linux_input_method_context_factory.h"
#include "base/functional/callback.h"
#include "base/no_destructor.h"
#include "build/build_config.h"
#include "ui/base/ime/linux/fake_input_method_context.h"
#if BUILDFLAG(IS_LINUX)
#include "ui/linux/linux_ui.h"
#include "ui/linux/linux_ui_delegate.h"
#endif
namespace ui {
LinuxInputMethodContextFactory& GetInputMethodContextFactoryForOzone() {
static base::NoDestructor<LinuxInputMethodContextFactory> factory;
return *factory;
}
LinuxInputMethodContextFactory& GetInputMethodContextFactoryForTest() {
static base::NoDestructor<LinuxInputMethodContextFactory> factory;
return *factory;
}
std::unique_ptr<LinuxInputMethodContext> CreateLinuxInputMethodContext(
LinuxInputMethodContextDelegate* delegate) {
// First, give the test-provided factory a chance to create the context.
if (auto factory = GetInputMethodContextFactoryForTest())
return factory.Run(delegate);
#if BUILDFLAG(IS_LINUX)
// Give the toolkit a chance to create the context.
if (auto* linux_ui = LinuxUi::instance()) {
if (auto context = linux_ui->CreateInputMethodContext(delegate))
return context;
}
#endif
// Finally, give the ozone platform a chance.
if (auto factory = GetInputMethodContextFactoryForOzone()) {
if (auto context = factory.Run(delegate))
return context;
}
// As a last resort, use a fake context.
return std::make_unique<FakeInputMethodContext>();
}
} // namespace ui
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