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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef FLUTTER_FLOW_VIEW_HOLDER_H_
#define FLUTTER_FLOW_VIEW_HOLDER_H_
#include <fuchsia/ui/gfx/cpp/fidl.h>
#include <fuchsia/ui/views/cpp/fidl.h>
#include <lib/ui/scenic/cpp/id.h>
#include <lib/ui/scenic/cpp/resources.h>
#include <third_party/skia/include/core/SkMatrix.h>
#include <third_party/skia/include/core/SkPoint.h>
#include <third_party/skia/include/core/SkSize.h>
#include <zircon/types.h>
#include <memory>
#include "flutter/flow/scene_update_context.h"
#include "flutter/fml/macros.h"
#include "flutter/fml/memory/ref_counted.h"
#include "flutter/fml/task_runner.h"
namespace flutter {
// Represents a Scenic |ViewHolder| resource that imports a |View| from another
// session.
//
// This object is created and destroyed on the |Rasterizer|'s thread.
class ViewHolder {
public:
using BindCallback = std::function<void(scenic::ResourceId)>;
static void Create(zx_koid_t id,
fml::RefPtr<fml::TaskRunner> ui_task_runner,
fuchsia::ui::views::ViewHolderToken view_holder_token,
const BindCallback& on_bind_callback);
static void Destroy(zx_koid_t id);
static ViewHolder* FromId(zx_koid_t id);
ViewHolder(fml::RefPtr<fml::TaskRunner> ui_task_runner,
fuchsia::ui::views::ViewHolderToken view_holder_token,
const BindCallback& on_bind_callback);
~ViewHolder() = default;
// Sets the properties/opacity of the child view by issuing a Scenic command.
void SetProperties(double width,
double height,
double insetTop,
double insetRight,
double insetBottom,
double insetLeft,
bool focusable);
// Creates or updates the contained ViewHolder resource using the specified
// |SceneUpdateContext|.
void UpdateScene(SceneUpdateContext& context,
const SkPoint& offset,
const SkSize& size,
SkAlpha opacity,
bool hit_testable);
bool hit_testable() { return hit_testable_; }
void set_hit_testable(bool value) { hit_testable_ = value; }
bool focusable() { return focusable_; }
void set_focusable(bool value) { focusable_ = value; }
private:
fml::RefPtr<fml::TaskRunner> ui_task_runner_;
std::unique_ptr<scenic::EntityNode> entity_node_;
std::unique_ptr<scenic::OpacityNodeHACK> opacity_node_;
std::unique_ptr<scenic::ViewHolder> view_holder_;
fuchsia::ui::views::ViewHolderToken pending_view_holder_token_;
BindCallback pending_bind_callback_;
bool hit_testable_ = true;
bool focusable_ = true;
fuchsia::ui::gfx::ViewProperties pending_properties_;
bool has_pending_properties_ = false;
FML_DISALLOW_COPY_AND_ASSIGN(ViewHolder);
};
} // namespace flutter
#endif // FLUTTER_FLOW_VIEW_HOLDER_H_