Add "stylus-tools" Wayland protocol.

components/exo/surface.cc

 // Copyright 2015 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/surface.h"
 
 #include <utility>
 
 #include "base/callback_helpers.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/trace_event/trace_event.h"
 #include "base/trace_event/trace_event_argument.h"
 #include "cc/output/compositor_frame_sink.h"
 #include "cc/quads/render_pass.h"
 #include "cc/quads/shared_quad_state.h"
 #include "cc/quads/solid_color_draw_quad.h"
 #include "cc/quads/texture_draw_quad.h"
 #include "cc/resources/single_release_callback.h"
 #include "cc/surfaces/sequence_surface_reference_factory.h"
 #include "cc/surfaces/surface.h"
 #include "cc/surfaces/surface_manager.h"
 #include "components/exo/buffer.h"
 #include "components/exo/pointer.h"
 #include "components/exo/surface_delegate.h"
 #include "components/exo/surface_observer.h"
 #include "third_party/khronos/GLES2/gl2.h"
+#include "ui/aura/client/aura_constants.h"
 #include "ui/aura/env.h"
 #include "ui/aura/window_delegate.h"
 #include "ui/aura/window_targeter.h"
 #include "ui/base/class_property.h"
 #include "ui/base/cursor/cursor.h"
 #include "ui/base/hit_test.h"
 #include "ui/compositor/layer.h"
 #include "ui/events/event.h"
 #include "ui/gfx/buffer_format_util.h"
 #include "ui/gfx/geometry/safe_integer_conversions.h"
 #include "ui/gfx/geometry/size_conversions.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 #include "ui/gfx/path.h"
 #include "ui/gfx/skia_util.h"
 #include "ui/gfx/transform_util.h"
 #include "ui/views/widget/widget.h"
 
 DECLARE_UI_CLASS_PROPERTY_TYPE(exo::Surface*);
 
 namespace exo {
 namespace {
 
 // A property key containing the surface that is associated with
 // window. If unset, no surface is associated with window.
 DEFINE_UI_CLASS_PROPERTY_KEY(Surface*, kSurfaceKey, nullptr);
 
+// A property key to store whether the surface should only consume
+// stylus input events.
+DEFINE_UI_CLASS_PROPERTY_KEY(bool, kStylusOnlyKey, false);
+
 // Helper function that returns an iterator to the first entry in |list|
 // with |key|.
 template <typename T, typename U>
 typename T::iterator FindListEntry(T& list, U key) {
   return std::find_if(list.begin(), list.end(),
                       [key](const typename T::value_type& entry) {
                         return entry.first == key;
                       });
 }
 
@@ skipping 562 matching lines @@
     active_frame_callbacks_.pop_front();
   }
   return true;
 }
 
 void Surface::CheckIfSurfaceHierarchyNeedsCommitToNewSurfaces() {
   if (HasLayerHierarchyChanged())
     SetSurfaceHierarchyNeedsCommitToNewSurfaces();
 }
 
+bool Surface::IsStylusOnly() {
+  return window_->GetProperty(kStylusOnlyKey);
+}
+
+void Surface::SetStylusOnly() {
+  window_->SetProperty(kStylusOnlyKey, true);
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // ui::ContextFactoryObserver overrides:
 
 void Surface::OnLostResources() {
   if (!window_->GetSurfaceId().is_valid())
     return;
   UpdateResource(false);
   UpdateSurface(true);
 }
 
@@ skipping 208 matching lines @@
         render_pass->CreateAndAppendDrawQuad<cc::SolidColorDrawQuad>();
     solid_quad->SetNew(quad_state, quad_rect, quad_rect, SK_ColorBLACK, false);
   }
 
   frame.render_pass_list.push_back(std::move(render_pass));
   compositor_frame_sink_holder_->GetCompositorFrameSink()
       ->SubmitCompositorFrame(std::move(frame));
 }
 
 }  // namespace exo