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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/theme_helper.h"
#include "content/browser/renderer_host/render_process_host_impl.h"
#include "content/common/renderer.mojom.h"
namespace content {
// static
ThemeHelper* ThemeHelper::GetInstance() {
static base::NoDestructor<ThemeHelper> s_theme_helper;
return s_theme_helper.get();
}
ThemeHelper::ThemeHelper() : theme_observer_(this) {
theme_observer_.Add(ui::NativeTheme::GetInstanceForWeb());
}
ThemeHelper::~ThemeHelper() {}
mojom::UpdateSystemColorInfoParamsPtr MakeUpdateSystemColorInfoParams(
ui::NativeTheme* native_theme) {
mojom::UpdateSystemColorInfoParamsPtr params =
mojom::UpdateSystemColorInfoParams::New();
params->is_dark_mode = native_theme->ShouldUseDarkColors();
params->is_high_contrast = native_theme->UsesHighContrastColors();
const auto& colors = native_theme->GetSystemColors();
params->colors.insert(colors.begin(), colors.end());
return params;
}
void ThemeHelper::OnNativeThemeUpdated(ui::NativeTheme* observed_theme) {
DCHECK(theme_observer_.IsObserving(observed_theme));
mojom::UpdateSystemColorInfoParamsPtr params =
MakeUpdateSystemColorInfoParams(observed_theme);
for (auto iter = RenderProcessHost::AllHostsIterator(); !iter.IsAtEnd();
iter.Advance()) {
if (iter.GetCurrentValue()->IsInitializedAndNotDead()) {
iter.GetCurrentValue()->GetRendererInterface()->UpdateSystemColorInfo(
params->Clone());
}
}
}
void ThemeHelper::SendSystemColorInfo(mojom::Renderer* renderer) const {
mojom::UpdateSystemColorInfoParamsPtr params =
MakeUpdateSystemColorInfoParams(ui::NativeTheme::GetInstanceForWeb());
renderer->UpdateSystemColorInfo(std::move(params));
}
} // namespace content
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