experimental.popup support for tab-content-viewed extensions

chrome/browser/extensions/extension_function_dispatcher.h

 // Copyright (c) 2009 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 CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_DISPATCHER_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_DISPATCHER_H_
 
 #include <string>
 #include <set>
 #include <vector>
 
 #include "base/ref_counted.h"
 #include "googleurl/src/gurl.h"
 
 class Browser;
 class Extension;
+class ExtensionDOMUI;
 class ExtensionFunction;
 class ExtensionHost;
+class ExtensionPopupHost;
 class Profile;
 class RenderViewHost;
 class RenderViewHostDelegate;
 class Value;
 
 // A factory function for creating new ExtensionFunction instances.
 typedef ExtensionFunction* (*ExtensionFunctionFactory)();
 
 // ExtensionFunctionDispatcher receives requests to execute functions from
 // Chromium extensions running in a RenderViewHost and dispatches them to the
 // appropriate handler. It lives entirely on the UI thread.
 class ExtensionFunctionDispatcher {
  public:
   class Delegate {
    public:
     virtual Browser* GetBrowser() = 0;
     virtual ExtensionHost* GetExtensionHost() { return NULL; }
+    virtual ExtensionDOMUI* GetExtensionDOMUI() { return NULL; }
   };
 
   // The peer object allows us to notify ExtensionFunctions when we are
   // destroyed.
   // TODO: this should use WeakPtr
   struct Peer : public base::RefCounted<Peer> {
-    Peer(ExtensionFunctionDispatcher* dispatcher) : dispatcher_(dispatcher) {}
+    explicit Peer(ExtensionFunctionDispatcher* dispatcher)
+        : dispatcher_(dispatcher) {}
     ExtensionFunctionDispatcher* dispatcher_;
 
-  private:
-   friend class base::RefCounted<Peer>;
+   private:
+    friend class base::RefCounted<Peer>;
 
-   ~Peer() {}
+    ~Peer() {}
   };
 
   // Gets a list of all known extension function names.
   static void GetAllFunctionNames(std::vector<std::string>* names);
 
   // Override a previously registered function. Returns true if successful,
   // false if no such function was registered.
   static bool OverrideFunction(const std::string& name,
                                ExtensionFunctionFactory factory);
 
@@ skipping 12 matching lines @@
   void HandleRequest(const std::string& name, const Value* args,
                      int request_id, bool has_callback);
 
   // Send a response to a function.
   void SendResponse(ExtensionFunction* api, bool success);
 
   // Gets the browser extension functions should operate relative to. For
   // example, for positioning windows, or alert boxes, or creating tabs.
   Browser* GetBrowser();
 
+  // Get the extension popup hosting environment for the ExtensionHost
+  // or ExtensionDOMUI associted with this dispatcher.
+  ExtensionPopupHost* GetPopupHost();
+
   // Gets the ExtensionHost associated with this object.  In the case of
   // tab hosted extension pages, this will return NULL.
   ExtensionHost* GetExtensionHost();
 
+  // Gets the ExtensionDOMUI associated with this object.  In the case of
+  // non-tab-hosted extension pages, this will return NULL.
+  ExtensionDOMUI* GetExtensionDOMUI();
+
   // Gets the extension the function is being invoked by. This should not ever
   // return NULL.
   Extension* GetExtension();
 
   // Handle a malformed message.  Possibly the result of an attack, so kill
   // the renderer.
   void HandleBadMessage(ExtensionFunction* api);
 
   // Gets the URL for the view we're displaying.
   const GURL& url() { return url_; }
@@ skipping 18 matching lines @@
 
   // AutomationExtensionFunction requires access to the RenderViewHost
   // associated with us.  We make it a friend rather than exposing the
   // RenderViewHost as a public method as we wouldn't want everyone to
   // start assuming a 1:1 relationship between us and RenderViewHost,
   // whereas AutomationExtensionFunction is by necessity "tight" with us.
   friend class AutomationExtensionFunction;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_FUNCTION_DISPATCHER_H_