extension_devtools_manager.cc revision c407dc5cd9bdc5668497f21b26b09d988ab439de 
1// Copyright (c) 2009 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#include "chrome/browser/extensions/extension_devtools_manager.h"
6
7#include "base/message_loop.h"
8#include "base/string_util.h"
9#include "base/task.h"
10#include "chrome/browser/extensions/extension_devtools_bridge.h"
11#include "chrome/browser/extensions/extension_devtools_events.h"
12
13ExtensionDevToolsManager::ExtensionDevToolsManager(Profile* profile)
14    : profile_(profile),
15      ui_loop_(NULL) {
16  DCHECK_EQ(MessageLoop::current()->type(), MessageLoop::TYPE_UI);
17  ui_loop_ = MessageLoop::current();
18}
19
20ExtensionDevToolsManager::~ExtensionDevToolsManager() {
21}
22
23void ExtensionDevToolsManager::AddEventListener(const std::string& event_name,
24                                                int render_process_id) {
25  int tab_id;
26  if (ExtensionDevToolsEvents::IsDevToolsEventName(event_name, &tab_id)) {
27    // Add the renderer process ID to the set of processes interested
28    // in this tab.
29    tab_id_to_render_process_ids_[tab_id].insert(render_process_id);
30    if (tab_id_to_bridge_.count(tab_id) == 0) {
31      // Create a new bridge for this tab if there isn't one already.
32      linked_ptr<ExtensionDevToolsBridge> bridge(
33          new ExtensionDevToolsBridge(tab_id, profile_));
34      if (bridge->RegisterAsDevToolsClientHost()) {
35        tab_id_to_bridge_[tab_id] = bridge;
36      }
37    }
38  }
39}
40
41void ExtensionDevToolsManager::RemoveEventListener(
42    const std::string& event_name,
43    int render_process_id) {
44  int tab_id;
45  if (ExtensionDevToolsEvents::IsDevToolsEventName(event_name, &tab_id)) {
46    std::map<int, std::set<int> >::iterator it =
47        tab_id_to_render_process_ids_.find(tab_id);
48    if (it != tab_id_to_render_process_ids_.end()) {
49      // Remove the process from the set of processes interested in this tab.
50      it->second.erase(render_process_id);
51      if (it->second.empty()) {
52        // No renderers have registered listeners for this tab, so kill the
53        // bridge if there is one.
54        if (tab_id_to_bridge_.count(tab_id) != 0) {
55          linked_ptr<ExtensionDevToolsBridge> bridge(tab_id_to_bridge_[tab_id]);
56          bridge->UnregisterAsDevToolsClientHost();
57          tab_id_to_bridge_.erase(tab_id);
58        }
59      }
60    }
61  }
62}
63
64void ExtensionDevToolsManager::BridgeClosingForTab(int tab_id) {
65  if (tab_id_to_bridge_.count(tab_id) != 0) {
66    linked_ptr<ExtensionDevToolsBridge> bridge(tab_id_to_bridge_[tab_id]);
67    bridge->UnregisterAsDevToolsClientHost();
68    tab_id_to_bridge_.erase(tab_id);
69  }
70  tab_id_to_render_process_ids_.erase(tab_id);
71}
72
73