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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/ui/toolbar/action_box_button_controller.h"
#include "base/logging.h"
#include "base/metrics/histogram.h"
#include "base/utf_string_conversions.h"
#include "chrome/app/chrome_command_ids.h"
#include "chrome/browser/extensions/api/page_launcher/page_launcher_api.h"
#include "chrome/browser/extensions/extension_service.h"
#include "chrome/browser/extensions/extension_system.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_commands.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/browser/ui/toolbar/action_box_menu_model.h"
#include "chrome/common/chrome_notification_types.h"
#include "chrome/common/extensions/api/extension_action/action_info.h"
#include "chrome/common/extensions/extension.h"
#include "chrome/common/extensions/extension_set.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_source.h"
#include "content/public/browser/render_widget_host_view.h"
#include "content/public/browser/user_metrics.h"
#include "content/public/browser/web_contents.h"
using content::UserMetricsAction;
using content::WebContents;
using extensions::ActionInfo;
void ActionBoxButtonController::Delegate::ShowMenu(
scoped_ptr<ActionBoxMenuModel> menu_model) {
}
ActionBoxButtonController::ActionBoxButtonController(Browser* browser,
Delegate* delegate)
: browser_(browser),
delegate_(delegate),
next_command_id_(0) {
DCHECK(browser_);
DCHECK(delegate_);
registrar_.Add(this,
chrome::NOTIFICATION_EXTENSION_UNLOADED,
content::Source<Profile>(browser->profile()));
}
ActionBoxButtonController::~ActionBoxButtonController() {}
void ActionBoxButtonController::OnButtonClicked() {
// Build a menu model and display the menu.
scoped_ptr<ActionBoxMenuModel> menu_model(
new ActionBoxMenuModel(browser_, this));
const ExtensionSet* extensions =
extensions::ExtensionSystem::Get(browser_->profile())->
extension_service()->extensions();
for (ExtensionSet::const_iterator it = extensions->begin();
it != extensions->end(); ++it) {
const extensions::Extension* extension = *it;
if (ActionInfo::GetPageLauncherInfo(extension)) {
int command_id = GetCommandIdForExtension(*extension);
menu_model->AddExtension(*extension, command_id);
}
}
content::RecordAction(UserMetricsAction("ActionBox.ClickButton"));
// And show the menu.
delegate_->ShowMenu(menu_model.Pass());
}
bool ActionBoxButtonController::IsCommandIdChecked(int command_id) const {
return false;
}
bool ActionBoxButtonController::IsCommandIdEnabled(int command_id) const {
return true;
}
bool ActionBoxButtonController::GetAcceleratorForCommandId(
int command_id,
ui::Accelerator* accelerator) {
return false;
}
void ActionBoxButtonController::ExecuteCommand(int command_id,
int event_flags) {
// If the command id belongs to an extension, dispatch an onClicked event
// to its pageLauncher.
ExtensionIdCommandMap::const_iterator it =
extension_command_ids_.find(command_id);
if (it != extension_command_ids_.end()) {
WebContents* web_contents =
browser_->tab_strip_model()->GetActiveWebContents();
std::string page_title = UTF16ToUTF8(web_contents->GetTitle());
std::string selected_text =
UTF16ToUTF8(web_contents->GetRenderWidgetHostView()->GetSelectedText());
extensions::PageLauncherAPI::DispatchOnClickedEvent(
browser_->profile(),
it->second,
web_contents->GetURL(),
web_contents->GetContentsMimeType(),
page_title.empty() ? NULL : &page_title,
selected_text.empty() ? NULL : &selected_text);
return;
}
// Otherwise, let the browser handle the command.
chrome::ExecuteCommand(browser_, command_id);
}
int ActionBoxButtonController::GetCommandIdForExtension(
const extensions::Extension& extension) {
for (ExtensionIdCommandMap::const_iterator it =
extension_command_ids_.begin();
it != extension_command_ids_.end(); ++it) {
if (it->second == extension.id())
return it->first;
}
int command_id = GetNextCommandId();
extension_command_ids_[command_id] = extension.id();
return command_id;
}
int ActionBoxButtonController::GetNextCommandId() {
int command_id = next_command_id_;
// Find an available command id to return next time the function is called.
do {
next_command_id_++;
// Larger command ids are reserved for non-dynamic entries, so we start
// reusing old ids at this point.
if (next_command_id_ >= IDC_MinimumLabelValue)
next_command_id_ = 0;
} while (extension_command_ids_.find(next_command_id_) !=
extension_command_ids_.end());
return command_id;
}
void ActionBoxButtonController::Observe(
int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
DCHECK_EQ(type, chrome::NOTIFICATION_EXTENSION_UNLOADED);
const extensions::Extension* extension =
content::Details<extensions::UnloadedExtensionInfo>(details)->extension;
// Remove any entry point command ids associated with the extension.
for (ExtensionIdCommandMap::iterator it = extension_command_ids_.begin();
it != extension_command_ids_.end();) {
if (it->second== extension->id())
extension_command_ids_.erase(it++);
else
++it;
}
// TODO(kalman): if there's a menu open, remove it from that too.
// We may also want to listen to EXTENSION_LOADED to do the opposite.
}
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