| // 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 <lib/ui/scenic/cpp/session.h> |
| #include <zircon/types.h> |
| |
| #include <memory> |
| |
| #include "flutter/fml/macros.h" |
| #include "flutter/fml/memory/ref_counted.h" |
| #include "flutter/fml/task_runner.h" |
| #include "third_party/skia/include/core/SkColor.h" |
| #include "third_party/skia/include/core/SkPoint.h" |
| #include "third_party/skia/include/core/SkRect.h" |
| #include "third_party/skia/include/core/SkSize.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 ViewIdCallback = std::function<void(scenic::ResourceId)>; |
| |
| // `Create`, `Destroy`, and `FromId` must be executed on the raster thread or |
| // errors will occur. |
| // |
| // `on_bind_callback` and `on_unbind_callback` will likewise execute on the |
| // raster thread; clients are responsible for re-threading the callback if |
| // needed. |
| static void Create(zx_koid_t id, |
| ViewIdCallback on_view_created, |
| fuchsia::ui::views::ViewHolderToken view_holder_token); |
| static void Destroy(zx_koid_t id, ViewIdCallback on_view_destroyed); |
| static ViewHolder* FromId(zx_koid_t id); |
| |
| ~ViewHolder() = default; |
| |
| // Sets the properties 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(scenic::Session* session, |
| scenic::ContainerNode& container_node, |
| const SkPoint& offset, |
| SkAlpha opacity); |
| |
| // Alters various apsects of the ViewHolder's ViewProperties. The updates |
| // are applied to Scenic on the new |UpdateScene| call. |
| void set_hit_testable(bool value); |
| void set_focusable(bool value); |
| void set_size(const SkSize& size); |
| void set_occlusion_hint(const SkRect& occlusion_hint); |
| |
| private: |
| ViewHolder(fuchsia::ui::views::ViewHolderToken view_holder_token, |
| ViewIdCallback on_view_created); |
| |
| 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_; |
| ViewIdCallback on_view_created_; |
| |
| fuchsia::ui::gfx::HitTestBehavior hit_test_behavior_ = |
| fuchsia::ui::gfx::HitTestBehavior::kDefault; |
| fuchsia::ui::gfx::ViewProperties view_properties_; |
| bool view_properties_changed_ = false; |
| |
| FML_DISALLOW_COPY_AND_ASSIGN(ViewHolder); |
| }; |
| |
| } // namespace flutter |
| |
| #endif // FLUTTER_FLOW_VIEW_HOLDER_H_ |