| // Copyright 2014 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 EXTENSIONS_RENDERER_USER_SCRIPT_SET_MANAGER_H_ |
| #define EXTENSIONS_RENDERER_USER_SCRIPT_SET_MANAGER_H_ |
| |
| #include <map> |
| #include <set> |
| #include <string> |
| |
| #include "base/memory/linked_ptr.h" |
| #include "base/memory/shared_memory.h" |
| #include "base/observer_list.h" |
| #include "content/public/renderer/render_process_observer.h" |
| #include "extensions/common/extension.h" |
| #include "extensions/common/user_script.h" |
| #include "extensions/renderer/user_script_set.h" |
| |
| namespace IPC { |
| class Message; |
| } |
| |
| namespace blink { |
| class WebFrame; |
| } |
| |
| namespace extensions { |
| |
| class ExtensionSet; |
| class ScriptInjection; |
| |
| // Manager for separate UserScriptSets, one for each shared memory region. |
| // Regions are organized as follows: |
| // static_scripts -- contains all extensions' scripts that are statically |
| // declared in the extension manifest. |
| // programmatic_scripts -- one region per extension containing only |
| // programmatically-declared scripts, instantiated |
| // when an extension first creates a declarative rule |
| // that would, if triggered, request a script injection. |
| class UserScriptSetManager : public content::RenderProcessObserver { |
| public: |
| // Like a UserScriptSet::Observer, but automatically subscribes to all sets |
| // associated with the manager. |
| class Observer { |
| public: |
| virtual void OnUserScriptsUpdated( |
| const std::set<std::string>& changed_extensions, |
| const std::vector<UserScript*>& scripts) = 0; |
| }; |
| |
| UserScriptSetManager(const ExtensionSet* extensions); |
| |
| virtual ~UserScriptSetManager(); |
| |
| void AddObserver(Observer* observer); |
| void RemoveObserver(Observer* observer); |
| |
| const UserScriptSet* GetProgrammaticScriptsByExtension( |
| const ExtensionId& extensionId); |
| |
| // Put all injections from |static_scripts| and each of |
| // |programmatic_scripts_| into |injections|. |
| void GetAllInjections(ScopedVector<ScriptInjection>* injections, |
| blink::WebFrame* web_frame, |
| int tab_id, |
| UserScript::RunLocation run_location); |
| |
| // Get active extension IDs from |static_scripts| and each of |
| // |programmatic_scripts_|. |
| void GetAllActiveExtensionIds(std::set<std::string>* ids) const; |
| |
| const UserScriptSet* static_scripts() const { return &static_scripts_; } |
| |
| private: |
| // Map for per-extension sets that may be defined programmatically. |
| typedef std::map<ExtensionId, linked_ptr<UserScriptSet> > UserScriptSetMap; |
| |
| // content::RenderProcessObserver implementation. |
| virtual bool OnControlMessageReceived(const IPC::Message& message) OVERRIDE; |
| |
| // Handle the UpdateUserScripts extension message. |
| void OnUpdateUserScripts(base::SharedMemoryHandle shared_memory, |
| const ExtensionId& extension_id, |
| const std::set<std::string>& changed_extensions); |
| |
| // Scripts statically defined in extension manifests. |
| UserScriptSet static_scripts_; |
| |
| // Scripts programmatically-defined through API calls (initialized and stored |
| // per-extension). |
| UserScriptSetMap programmatic_scripts_; |
| |
| // The set of all known extensions. Owned by the Dispatcher. |
| const ExtensionSet* extensions_; |
| |
| // The associated observers. |
| ObserverList<Observer> observers_; |
| |
| DISALLOW_COPY_AND_ASSIGN(UserScriptSetManager); |
| }; |
| |
| } // namespace extensions |
| |
| #endif // EXTENSIONS_RENDERER_USER_SCRIPT_SET_MANAGER_H_ |