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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CONTENT_PUBLIC_BROWSER_DEVTOOLS_AGENT_HOST_H_
      6 #define CONTENT_PUBLIC_BROWSER_DEVTOOLS_AGENT_HOST_H_
      7 
      8 #include <string>
      9 #include <vector>
     10 
     11 #include "base/basictypes.h"
     12 #include "base/memory/ref_counted.h"
     13 #include "content/common/content_export.h"
     14 
     15 namespace content {
     16 
     17 class RenderViewHost;
     18 class WebContents;
     19 
     20 // Describes interface for managing devtools agents from browser process.
     21 class CONTENT_EXPORT DevToolsAgentHost
     22     : public base::RefCounted<DevToolsAgentHost> {
     23  public:
     24   // Returns DevToolsAgentHost with a given |id| or NULL of it does not exist.
     25   static scoped_refptr<DevToolsAgentHost> GetForId(const std::string& id);
     26 
     27   // Returns DevToolsAgentHost that can be used for inspecting |rvh|.
     28   // New DevToolsAgentHost will be created if it does not exist.
     29   static scoped_refptr<DevToolsAgentHost> GetOrCreateFor(RenderViewHost* rvh);
     30 
     31   // Returns true iff an instance of DevToolsAgentHost for the |rvh|
     32   // does exist.
     33   static bool HasFor(RenderViewHost* rvh);
     34 
     35   // Returns DevToolsAgentHost that can be used for inspecting shared worker
     36   // with given worker process host id and routing id.
     37   static scoped_refptr<DevToolsAgentHost> GetForWorker(int worker_process_id,
     38                                                        int worker_route_id);
     39 
     40   // Returns true iff an instance of DevToolsAgentHost exists for the shared
     41   // worker with given process host id and routing id.
     42   static bool HasForWorker(int worker_process_id,
     43                            int worker_route_id);
     44 
     45   static bool IsDebuggerAttached(WebContents* web_contents);
     46 
     47   // Returns a list of all existing RenderViewHost's that can be debugged.
     48   static std::vector<RenderViewHost*> GetValidRenderViewHosts();
     49 
     50   // Returns true if there is a client attached.
     51   virtual bool IsAttached() = 0;
     52 
     53   // Starts inspecting element at position (|x|, |y|) in the specified page.
     54   virtual void InspectElement(int x, int y) = 0;
     55 
     56   // Returns the unique id of the agent.
     57   virtual std::string GetId() = 0;
     58 
     59   // Returns render view host instance for this host if any.
     60   virtual RenderViewHost* GetRenderViewHost() = 0;
     61 
     62   // Temporarily detaches render view host from this host. Must be followed by
     63   // a call to ConnectRenderViewHost (may leak the host instance otherwise).
     64   virtual void DisconnectRenderViewHost() = 0;
     65 
     66   // Attaches render view host to this host.
     67   virtual void ConnectRenderViewHost(RenderViewHost* rvh) = 0;
     68 
     69  protected:
     70   friend class base::RefCounted<DevToolsAgentHost>;
     71   virtual ~DevToolsAgentHost() {}
     72 };
     73 
     74 }  // namespace content
     75 
     76 #endif  // CONTENT_PUBLIC_BROWSER_DEVTOOLS_AGENT_HOST_H_
     77