Add ability to directly retrieve plugin information (issue #575).

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@609 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/browser/web_plugin_impl.cc

@@ -0,0 +1,75 @@
+// Copyright (c) 2012 The Chromium Embedded Framework 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 "include/cef_web_plugin.h"
+#include "libcef/browser/context.h"
+#include "libcef/browser/thread_util.h"
+
+#include "base/bind.h"
+#include "base/file_path.h"
+#include "content/browser/plugin_service_impl.h"
+
+namespace {
+
+class CefWebPluginInfoImpl : public CefWebPluginInfo {
+ public:
+  explicit CefWebPluginInfoImpl(const webkit::WebPluginInfo& plugin_info)
+      : plugin_info_(plugin_info) {
+  }
+
+  virtual CefString GetName() OVERRIDE {
+    return plugin_info_.name;
+  }
+
+  virtual CefString GetPath() OVERRIDE {
+    return plugin_info_.path.value();
+  }
+
+  virtual CefString GetVersion() OVERRIDE {
+    return plugin_info_.version;
+  }
+
+  virtual CefString GetDescription() OVERRIDE {
+    return plugin_info_.desc;
+  }
+
+ private:
+  webkit::WebPluginInfo plugin_info_;
+
+  IMPLEMENT_REFCOUNTING(CefWebPluginInfoImpl);
+};
+
+void PluginsCallbackImpl(
+    CefRefPtr<CefWebPluginInfoVisitor> visitor,
+    const std::vector<webkit::WebPluginInfo>& all_plugins) {
+  CEF_REQUIRE_UIT();
+
+  int count = 0;
+  int total = static_cast<int>(all_plugins.size());
+
+  std::vector<webkit::WebPluginInfo>::const_iterator it = all_plugins.begin();
+  for (; it != all_plugins.end(); ++it, ++count) {
+    CefRefPtr<CefWebPluginInfoImpl> info(new CefWebPluginInfoImpl(*it));
+    if (!visitor->Visit(info.get(), count, total))
+      break;
+  }
+}
+
+}  // namespace
+
+void CefVisitWebPluginInfo(CefRefPtr<CefWebPluginInfoVisitor> visitor) {
+  // Verify that the context is in a valid state.
+  if (!CONTEXT_STATE_VALID()) {
+    NOTREACHED() << "context not valid";
+    return;
+  }
+
+  if (CEF_CURRENTLY_ON_UIT()) {
+    PluginServiceImpl::GetInstance()->GetPlugins(
+        base::Bind(PluginsCallbackImpl, visitor));
+  } else {
+    // Execute on the UI thread.
+    CEF_POST_TASK(CEF_UIT, base::Bind(CefVisitWebPluginInfo, visitor));
+  }
+}