1// Copyright 2014 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/location_bar_controller.h"
6
7#include "base/logging.h"
8#include "chrome/browser/extensions/active_script_controller.h"
9#include "chrome/browser/extensions/extension_action.h"
10#include "chrome/browser/extensions/page_action_controller.h"
11#include "chrome/common/extensions/api/extension_action/action_info.h"
12#include "content/public/browser/invalidate_type.h"
13#include "content/public/browser/navigation_details.h"
14#include "content/public/browser/web_contents.h"
15#include "extensions/browser/extension_registry.h"
16
17namespace extensions {
18
19LocationBarController::LocationBarController(
20    content::WebContents* web_contents)
21    : WebContentsObserver(web_contents),
22      web_contents_(web_contents),
23      active_script_controller_(new ActiveScriptController(web_contents_)),
24      page_action_controller_(new PageActionController(web_contents_)),
25      extension_registry_observer_(this) {
26  extension_registry_observer_.Add(
27      ExtensionRegistry::Get(web_contents_->GetBrowserContext()));
28}
29
30LocationBarController::~LocationBarController() {
31}
32
33std::vector<ExtensionAction*> LocationBarController::GetCurrentActions() {
34  const ExtensionSet& extensions =
35      ExtensionRegistry::Get(web_contents_->GetBrowserContext())
36          ->enabled_extensions();
37  std::vector<ExtensionAction*> current_actions;
38  for (ExtensionSet::const_iterator iter = extensions.begin();
39       iter != extensions.end();
40       ++iter) {
41    // Right now, we can consolidate these actions because we only want to show
42    // one action per extension. If clicking on an active script action ever
43    // has a response, then we will need to split the actions.
44    ExtensionAction* action =
45        page_action_controller_->GetActionForExtension(*iter);
46    if (!action)
47      action = active_script_controller_->GetActionForExtension(*iter);
48    if (action)
49      current_actions.push_back(action);
50  }
51
52  return current_actions;
53}
54
55LocationBarController::Action LocationBarController::OnClicked(
56    const ExtensionAction* action) {
57  const Extension* extension =
58      ExtensionRegistry::Get(web_contents_->GetBrowserContext())
59          ->enabled_extensions().GetByID(action->extension_id());
60  CHECK(extension) << action->extension_id();
61
62  Action page_action =
63      page_action_controller_->GetActionForExtension(extension) ?
64          page_action_controller_->OnClicked(extension) :
65          ACTION_NONE;
66  Action active_script_action =
67      active_script_controller_->GetActionForExtension(extension) ?
68          active_script_controller_->OnClicked(extension) :
69          ACTION_NONE;
70
71  // PageAction response takes priority.
72  return page_action != ACTION_NONE ? page_action : active_script_action;
73}
74
75// static
76void LocationBarController::NotifyChange(content::WebContents* web_contents) {
77  web_contents->NotifyNavigationStateChanged(
78      content::INVALIDATE_TYPE_PAGE_ACTIONS);
79}
80
81void LocationBarController::DidNavigateMainFrame(
82    const content::LoadCommittedDetails& details,
83    const content::FrameNavigateParams& params) {
84  if (details.is_in_page)
85    return;
86
87  page_action_controller_->OnNavigated();
88  active_script_controller_->OnNavigated();
89}
90
91void LocationBarController::OnExtensionUnloaded(
92    content::BrowserContext* browser_context,
93    const Extension* extension,
94    UnloadedExtensionInfo::Reason reason) {
95  bool should_update = false;
96  if (page_action_controller_->GetActionForExtension(extension)) {
97    page_action_controller_->OnExtensionUnloaded(extension);
98    should_update = true;
99  }
100  if (active_script_controller_->GetActionForExtension(extension)) {
101    active_script_controller_->OnExtensionUnloaded(extension);
102    should_update = true;
103  }
104
105  if (should_update)
106    NotifyChange(web_contents());
107}
108
109}  // namespace extensions
110