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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/script_badge_controller.h"
#include "chrome/browser/extensions/extension_service.h"
#include "chrome/browser/extensions/extension_system.h"
#include "chrome/browser/ui/tab_contents/tab_contents.h"
#include "chrome/common/extensions/extension.h"
#include "chrome/common/extensions/extension_action.h"
#include "chrome/common/extensions/extension_messages.h"
#include "chrome/common/extensions/extension_set.h"
#include "chrome/common/extensions/extension_switch_utils.h"
#include "chrome/common/chrome_notification_types.h"
#include "content/public/browser/navigation_controller.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/web_contents.h"
#include "ipc/ipc_message.h"
#include "ipc/ipc_message_macros.h"
namespace extensions {
ScriptBadgeController::ScriptBadgeController(TabContents* tab_contents)
: content::WebContentsObserver(tab_contents->web_contents()),
script_executor_(tab_contents->web_contents()),
tab_contents_(tab_contents) {
registrar_.Add(this,
chrome::NOTIFICATION_EXTENSION_UNLOADED,
content::Source<Profile>(tab_contents->profile()));
}
ScriptBadgeController::~ScriptBadgeController() {}
std::vector<ExtensionAction*> ScriptBadgeController::GetCurrentActions() {
return current_actions_;
}
LocationBarController::Action ScriptBadgeController::OnClicked(
const std::string& extension_id, int mouse_button) {
ExtensionService* service = GetExtensionService();
if (!service)
return ACTION_NONE;
const Extension* extension = service->extensions()->GetByID(extension_id);
CHECK(extension);
switch (mouse_button) {
case 1: // left
return ACTION_SHOW_SCRIPT_POPUP;
case 2: // middle
// TODO(kalman): decide what to do here.
return ACTION_NONE;
case 3: // right
return extension->ShowConfigureContextMenus() ?
ACTION_SHOW_CONTEXT_MENU : ACTION_NONE;
}
return ACTION_NONE;
}
void ScriptBadgeController::ExecuteScript(
const std::string& extension_id,
ScriptExecutor::ScriptType script_type,
const std::string& code,
ScriptExecutor::FrameScope frame_scope,
UserScript::RunLocation run_at,
ScriptExecutor::WorldType world_type,
const ExecuteScriptCallback& callback) {
ExecuteScriptCallback this_callback = base::Bind(
&ScriptBadgeController::OnExecuteScriptFinished,
this,
extension_id,
callback);
script_executor_.ExecuteScript(extension_id,
script_type,
code,
frame_scope,
run_at,
world_type,
this_callback);
}
void ScriptBadgeController::OnExecuteScriptFinished(
const std::string& extension_id,
const ExecuteScriptCallback& callback,
bool success,
int32 page_id,
const std::string& error,
const base::ListValue& script_results) {
if (success && page_id == GetPageID()) {
if (InsertExtension(extension_id))
Notify();
}
callback.Run(success, page_id, error, script_results);
}
ExtensionService* ScriptBadgeController::GetExtensionService() {
return ExtensionSystem::Get(tab_contents_->profile())->extension_service();
}
int32 ScriptBadgeController::GetPageID() {
return tab_contents_->web_contents()->GetController().GetActiveEntry()->
GetPageID();
}
void ScriptBadgeController::Notify() {
content::NotificationService::current()->Notify(
chrome::NOTIFICATION_EXTENSION_LOCATION_BAR_UPDATED,
content::Source<Profile>(tab_contents_->profile()),
content::Details<TabContents>(tab_contents_));
}
void ScriptBadgeController::DidNavigateMainFrame(
const content::LoadCommittedDetails& details,
const content::FrameNavigateParams& params) {
extensions_executing_scripts_.clear();
current_actions_.clear();
}
void ScriptBadgeController::Observe(
int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
DCHECK_EQ(type, chrome::NOTIFICATION_EXTENSION_UNLOADED);
const Extension* extension =
content::Details<UnloadedExtensionInfo>(details)->extension;
if (EraseExtension(extension))
Notify();
}
bool ScriptBadgeController::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(ScriptBadgeController, message)
IPC_MESSAGE_HANDLER(ExtensionHostMsg_ContentScriptsExecuting,
OnContentScriptsExecuting)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void ScriptBadgeController::OnContentScriptsExecuting(
const std::set<std::string>& extension_ids, int32 page_id) {
if (page_id != GetPageID())
return;
bool changed = false;
for (std::set<std::string>::const_iterator it = extension_ids.begin();
it != extension_ids.end(); ++it) {
changed |= InsertExtension(*it);
}
if (changed)
Notify();
}
bool ScriptBadgeController::InsertExtension(const std::string& extension_id) {
if (!extensions_executing_scripts_.insert(extension_id).second)
return false;
ExtensionService* service = GetExtensionService();
if (!service)
return false;
const Extension* extension = service->extensions()->GetByID(extension_id);
if (!extension)
return false;
current_actions_.push_back(extension->script_badge());
return true;
}
bool ScriptBadgeController::EraseExtension(const Extension* extension) {
if (extensions_executing_scripts_.erase(extension->id()) == 0)
return false;
size_t size_before = current_actions_.size();
for (std::vector<ExtensionAction*>::iterator it = current_actions_.begin();
it != current_actions_.end(); ++it) {
// Safe to -> the extension action because we still have a handle to the
// owner Extension.
//
// Also note that this means that when extensions are uninstalled their
// script badges will disappear, even though they're still acting on the
// page (since they would have already acted).
if ((*it)->extension_id() == extension->id()) {
current_actions_.erase(it);
break;
}
}
CHECK_EQ(size_before, current_actions_.size() + 1);
return true;
}
} // namespace extensions
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