Add webkit to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@18 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 119 insertions, 0 deletions

diff --git a/webkit/glue/cpp_binding_example.cc b/webkit/glue/cpp_binding_example.cc
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+++ b/webkit/glue/cpp_binding_example.cc
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+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// This file contains the definition for CppBindingExample, a usage example
+// that is not actually used anywhere.  See cpp_binding_example.h.
+
+#include "cpp_binding_example.h"
+
+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
+  // variables exposed through those names.
+  BindProperty("my_value", &my_value);
+  BindProperty("my_other_value", &my_other_value);
+
+  // Map methods.  See comment above about names.
+  BindMethod("echoValue", &CppBindingExample::echoValue);
+  BindMethod("echoType",  &CppBindingExample::echoType);
+  BindMethod("plus",      &CppBindingExample::plus);
+  
+  // The fallback method is called when a nonexistent method is called on an
+  // object. If none is specified, calling a nonexistent method causes an
+  // exception to be thrown and the JavaScript execution is stopped.
+  BindFallbackMethod(&CppBindingExample::fallbackMethod);
+
+  my_value.Set(10);
+  my_other_value.Set("Reinitialized!");
+}
+
+void CppBindingExample::echoValue(const CppArgumentList& args,
+                                  CppVariant* result) {
+  if (args.size() < 1) {
+    result->SetNull();
+    return;
+  }
+  result->Set(args[0]);
+}
+
+void CppBindingExample::echoType(const CppArgumentList& args, 
+                                 CppVariant* result) {   
+  if (args.size() < 1) {
+    result->SetNull();
+    return;
+  }  
+  // Note that if args[0] is a string, the following assignment implicitly
+  // makes a copy of that string, which may have an undesirable impact on
+  // performance.
+  CppVariant arg1 = args[0];
+  if (arg1.isBool())
+    result->Set(true);
+  else if (arg1.isInt32())
+    result->Set(7);
+  else if (arg1.isDouble())
+    result->Set(3.14159);
+  else if (arg1.isString())
+    result->Set("Success!");
+}
+
+void CppBindingExample::plus(const CppArgumentList& args, 
+                             CppVariant* result) {
+  if (args.size() < 2) {
+    result->SetNull();
+    return;
+  }
+
+  CppVariant arg1 = args[0];
+  CppVariant arg2 = args[1];
+
+  if (!arg1.isNumber() || !arg2.isNumber()) {
+    result->SetNull();
+    return;
+  }
+
+  // The value of a CppVariant may be read directly from its NPVariant struct.
+  // (However, it should only be set using one of the Set() functions.)
+  double sum = 0.;
+  if (arg1.isDouble())
+    sum += arg1.value.doubleValue;
+  else if (arg1.isInt32())
+    sum += arg1.value.intValue;
+
+  if (arg2.isDouble())
+    sum += arg2.value.doubleValue;
+  else if (arg2.isInt32())
+    sum += arg2.value.intValue;
+
+  result->Set(sum);
+}
+
+void CppBindingExample::fallbackMethod(const CppArgumentList& args,
+                                       CppVariant* result) {
+  printf("Error: unknown JavaScript method invoked.\n");
+}