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// Copyright (c) 2012 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.
#include "chrome/browser/extensions/page_action_controller.h"
#include <set>
#include "base/lazy_instance.h"
#include "base/metrics/histogram.h"
#include "chrome/browser/extensions/api/extension_action/extension_action_api.h"
#include "chrome/browser/extensions/component_loader.h"
#include "chrome/browser/extensions/extension_action.h"
#include "chrome/browser/extensions/extension_action_manager.h"
#include "chrome/browser/extensions/extension_tab_util.h"
#include "chrome/browser/extensions/tab_helper.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/sessions/session_id.h"
#include "content/public/browser/invalidate_type.h"
#include "content/public/browser/navigation_details.h"
#include "content/public/browser/web_contents.h"
#include "extensions/browser/extension_registry.h"
#include "extensions/common/extension_set.h"
namespace extensions {
// Keeps track of the profiles for which we've sent UMA statistics.
base::LazyInstance<std::set<Profile*> > g_reported_for_profiles =
LAZY_INSTANCE_INITIALIZER;
PageActionController::PageActionController(content::WebContents* web_contents)
: content::WebContentsObserver(web_contents) {}
PageActionController::~PageActionController() {}
std::vector<ExtensionAction*> PageActionController::GetCurrentActions() const {
ExtensionRegistry* registry = GetExtensionRegistry();
if (!registry)
return std::vector<ExtensionAction*>();
// Accumulate the list of all page actions to display.
std::vector<ExtensionAction*> current_actions;
ExtensionActionManager* extension_action_manager =
ExtensionActionManager::Get(GetProfile());
const ExtensionSet& enabled_set = registry->enabled_extensions();
for (ExtensionSet::const_iterator i = enabled_set.begin();
i != enabled_set.end();
++i) {
ExtensionAction* action =
extension_action_manager->GetPageAction(*i->get());
if (action)
current_actions.push_back(action);
}
if (!g_reported_for_profiles.Get().count(GetProfile())) {
UMA_HISTOGRAM_COUNTS_100("PageActionController.ExtensionsWithPageActions",
current_actions.size());
g_reported_for_profiles.Get().insert(GetProfile());
}
return current_actions;
}
LocationBarController::Action PageActionController::OnClicked(
const std::string& extension_id, int mouse_button) {
ExtensionRegistry* registry = GetExtensionRegistry();
if (!registry)
return ACTION_NONE;
const Extension* extension =
registry->enabled_extensions().GetByID(extension_id);
CHECK(extension);
ExtensionAction* page_action =
ExtensionActionManager::Get(GetProfile())->GetPageAction(*extension);
CHECK(page_action);
int tab_id = ExtensionTabUtil::GetTabId(web_contents());
extensions::TabHelper::FromWebContents(web_contents())->
active_tab_permission_granter()->GrantIfRequested(extension);
switch (mouse_button) {
case 1: // left
case 2: // middle
if (page_action->HasPopup(tab_id))
return ACTION_SHOW_POPUP;
ExtensionActionAPI::PageActionExecuted(
GetProfile(), *page_action, tab_id,
web_contents()->GetURL().spec(), mouse_button);
return ACTION_NONE;
case 3: // right
return extension->ShowConfigureContextMenus() ?
ACTION_SHOW_CONTEXT_MENU : ACTION_NONE;
}
return ACTION_NONE;
}
void PageActionController::NotifyChange() {
web_contents()->NotifyNavigationStateChanged(
content::INVALIDATE_TYPE_PAGE_ACTIONS);
}
void PageActionController::DidNavigateMainFrame(
const content::LoadCommittedDetails& details,
const content::FrameNavigateParams& params) {
if (details.is_in_page)
return;
const std::vector<ExtensionAction*> current_actions = GetCurrentActions();
if (current_actions.empty())
return;
for (size_t i = 0; i < current_actions.size(); ++i) {
current_actions[i]->ClearAllValuesForTab(
SessionID::IdForTab(web_contents()));
}
NotifyChange();
}
Profile* PageActionController::GetProfile() const {
content::WebContents* web_contents = this->web_contents();
if (web_contents)
return Profile::FromBrowserContext(web_contents->GetBrowserContext());
return NULL;
}
ExtensionRegistry* PageActionController::GetExtensionRegistry() const {
Profile* profile = this->GetProfile();
return profile ? ExtensionRegistry::Get(profile) : NULL;
}
} // namespace extensions
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