libcef:

- Add support for embedded netscape-style plugins.
- Add new webkit_glue VisitedLinkHash() and IsLinkVisited() functions required by underlying chromium changes.
cefclient:
- Add sample netscape-style plugin implementation and related Plugin item on the Tests menu.
- Increase the speed of the update timer so that buttons refresh closer to real-time.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@5 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/plugins/browser_plugin_lib.h

@@ -0,0 +1,89 @@
+// Copyright (c) 2008 The Chromium Embedded Framework Authors.
+// Portions copyright (c) 2006-2008 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.
+
+#ifndef _BROWSER_PLUGIN_LIB_H
+#define _BROWSER_PLUGIN_LIB_H
+
+#include <string>
+
+#include "../../include/cef_nplugin.h"
+
+#include "base/basictypes.h"
+#include "base/hash_tables.h"
+#include "base/ref_counted.h"
+#include "base/scoped_ptr.h"
+
+struct WebPluginInfo;
+
+namespace NPAPI
+{
+
+class BrowserPluginInstance;
+
+// A BrowserPluginLib is a single NPAPI Plugin Library, and is the lifecycle
+// manager for new PluginInstances.
+class BrowserPluginLib : public base::RefCounted<BrowserPluginLib> {
+ public:
+  virtual ~BrowserPluginLib();
+  static BrowserPluginLib* GetOrCreatePluginLib(const struct CefPluginInfo& plugin_info);
+
+  // Get the Plugin's function pointer table.
+  NPPluginFuncs *functions();
+
+  // Returns true if this Plugin supports a given mime-type.
+  // mime_type should be all lower case.
+  bool SupportsType(const std::string &mime_type, bool allow_wildcard);
+
+  // Creates a new instance of this plugin.
+  BrowserPluginInstance *CreateInstance(const std::string &mime_type);
+
+  // Called by the instance when the instance is tearing down.
+  void CloseInstance();
+
+  // Gets information about this plugin and the mime types that it
+  // supports.
+  const WebPluginInfo& web_plugin_info() { return *web_plugin_info_; }
+  const struct CefPluginInfo& plugin_info() { return plugin_info_; }
+
+  //
+  // NPAPI functions
+  //
+
+  // NPAPI method to initialize a Plugin.
+  // Initialize can be safely called multiple times
+  NPError NP_Initialize();
+
+  // NPAPI method to shutdown a Plugin.
+  void NP_Shutdown(void);
+
+  int instance_count() const { return instance_count_; }
+
+ private:
+  // Creates a new BrowserPluginLib.  The WebPluginInfo object is owned by this
+  // object. internal_plugin_info must not be NULL.
+  BrowserPluginLib(WebPluginInfo* info,
+                   const CefPluginInfo& plugin_info);
+
+  // Creates WebPluginInfo structure based on read in or built in
+  // CefPluginVersionInfo.
+  static WebPluginInfo* CreateWebPluginInfo(const CefPluginVersionInfo& info);
+
+  scoped_ptr<WebPluginInfo> web_plugin_info_;  // supported mime types, description
+  struct CefPluginInfo plugin_info_;
+  NPPluginFuncs    plugin_funcs_;     // the struct of plugin side functions
+  bool             initialized_;      // is the plugin initialized
+  NPSavedData     *saved_data_;       // persisted plugin info for NPAPI
+  int              instance_count_;   // count of plugins in use
+
+  // A map of all the insantiated plugins.
+  typedef base::hash_map<std::wstring, scoped_refptr<BrowserPluginLib> > PluginMap;
+  static PluginMap* loaded_libs_;
+
+  DISALLOW_EVIL_CONSTRUCTORS(BrowserPluginLib);
+};
+
+} // namespace NPAPI
+
+#endif  // _BROWSER_PLUGIN_LIB_H