Implement getter/setter-based bound properties for CppBoundClass.

This is necessary for AccessibilityController, which has non-trivial
property accessors.

R=darin
BUG=10322
TEST=CppBoundClassTest.SetAndGetPropertiesWithCallbacks

Review URL: http://codereview.chromium.org/243064

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@28872 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 31 insertions, 2 deletions

diff --git a/webkit/glue/cpp_binding_example.cc b/webkit/glue/cpp_binding_example.cc
index b71ffd3..79e96e4 100644
--- a/webkit/glue/cpp_binding_example.cc
+++ b/webkit/glue/cpp_binding_example.cc
@@ -2,11 +2,31 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// This file contains the definition for CppBindingExample, a usage example
-// that is not actually used anywhere.  See cpp_binding_example.h.
+// This file contains the definition for CppBindingExample, which is used in
+// cpp_bound_class_unittest.
 
 #include "cpp_binding_example.h"
 
+namespace {
+
+class PropertyCallbackExample : public CppBoundClass::PropertyCallback {
+ public:
+  virtual bool GetValue(CppVariant* value) {
+    value->Set(value_);
+    return true;
+  }
+
+  virtual bool SetValue(const CppVariant& value) {
+    value_.Set(value);
+    return true;
+  }
+
+ private:
+  CppVariant value_;
+};
+
+}
+
 CppBindingExample::CppBindingExample() {
   // Map properties.  It's recommended, but not required, that the JavaScript
   // names (used as the keys in this map) match the names of the member
@@ -14,6 +34,11 @@ CppBindingExample::CppBindingExample() {
   BindProperty("my_value", &my_value);
   BindProperty("my_other_value", &my_other_value);
 
+  // Bind property with a callback.
+  BindProperty("my_value_with_callback", new PropertyCallbackExample());
+  // Bind property with a getter callback.
+  BindProperty("same", &CppBindingExample::same);
+
   // Map methods.  See comment above about names.
   BindMethod("echoValue", &CppBindingExample::echoValue);
   BindMethod("echoType",  &CppBindingExample::echoType);
@@ -88,6 +113,10 @@ void CppBindingExample::plus(const CppArgumentList& args,
   result->Set(sum);
 }
 
+void CppBindingExample::same(CppVariant* result) {
+  result->Set(42);
+}
+
 void CppBindingExample::fallbackMethod(const CppArgumentList& args,
                                        CppVariant* result) {
   printf("Error: unknown JavaScript method invoked.\n");