| // Copyright 2018 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 "components/exo/wayland/zcr_stylus_tools.h" |
| |
| #include <stylus-tools-unstable-v1-server-protocol.h> |
| #include <wayland-server-core.h> |
| #include <wayland-server-protocol-core.h> |
| |
| #include "components/exo/surface.h" |
| #include "components/exo/surface_observer.h" |
| #include "components/exo/wayland/server_util.h" |
| |
| namespace exo { |
| namespace wayland { |
| |
| namespace { |
| |
| // A property key containing a boolean set to true if the stylus_tool |
| // object is associated with surface object. |
| DEFINE_UI_CLASS_PROPERTY_KEY(bool, kSurfaceHasStylusToolKey, false) |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // stylus_tool interface: |
| |
| class StylusTool : public SurfaceObserver { |
| public: |
| explicit StylusTool(Surface* surface) : surface_(surface) { |
| surface_->AddSurfaceObserver(this); |
| surface_->SetProperty(kSurfaceHasStylusToolKey, true); |
| } |
| ~StylusTool() override { |
| if (surface_) { |
| surface_->RemoveSurfaceObserver(this); |
| surface_->SetProperty(kSurfaceHasStylusToolKey, false); |
| } |
| } |
| |
| void SetStylusOnly() { surface_->SetStylusOnly(); } |
| |
| // Overridden from SurfaceObserver: |
| void OnSurfaceDestroying(Surface* surface) override { |
| surface->RemoveSurfaceObserver(this); |
| surface_ = nullptr; |
| } |
| |
| private: |
| Surface* surface_; |
| |
| DISALLOW_COPY_AND_ASSIGN(StylusTool); |
| }; |
| |
| void stylus_tool_destroy(wl_client* client, wl_resource* resource) { |
| wl_resource_destroy(resource); |
| } |
| |
| void stylus_tool_set_stylus_only(wl_client* client, wl_resource* resource) { |
| GetUserDataAs<StylusTool>(resource)->SetStylusOnly(); |
| } |
| |
| const struct zcr_stylus_tool_v1_interface stylus_tool_implementation = { |
| stylus_tool_destroy, stylus_tool_set_stylus_only}; |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // stylus_tools interface: |
| |
| void stylus_tools_destroy(wl_client* client, wl_resource* resource) { |
| wl_resource_destroy(resource); |
| } |
| |
| void stylus_tools_get_stylus_tool(wl_client* client, |
| wl_resource* resource, |
| uint32_t id, |
| wl_resource* surface_resource) { |
| Surface* surface = GetUserDataAs<Surface>(surface_resource); |
| if (surface->GetProperty(kSurfaceHasStylusToolKey)) { |
| wl_resource_post_error( |
| resource, ZCR_STYLUS_TOOLS_V1_ERROR_STYLUS_TOOL_EXISTS, |
| "a stylus_tool object for that surface already exists"); |
| return; |
| } |
| |
| wl_resource* stylus_tool_resource = |
| wl_resource_create(client, &zcr_stylus_tool_v1_interface, 1, id); |
| |
| SetImplementation(stylus_tool_resource, &stylus_tool_implementation, |
| std::make_unique<StylusTool>(surface)); |
| } |
| |
| const struct zcr_stylus_tools_v1_interface stylus_tools_implementation = { |
| stylus_tools_destroy, stylus_tools_get_stylus_tool}; |
| |
| } // namespace |
| |
| void bind_stylus_tools(wl_client* client, |
| void* data, |
| uint32_t version, |
| uint32_t id) { |
| wl_resource* resource = |
| wl_resource_create(client, &zcr_stylus_tools_v1_interface, 1, id); |
| |
| wl_resource_set_implementation(resource, &stylus_tools_implementation, data, |
| nullptr); |
| } |
| |
| } // namespace wayland |
| } // namespace exo |