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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/webui/ntp/android/context_menu_handler.h"
#include "base/bind.h"
#include "base/prefs/pref_service.h"
#include "base/strings/string16.h"
#include "base/strings/utf_string_conversions.h"
#include "base/values.h"
#include "chrome/browser/prefs/incognito_mode_prefs.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/android/context_menu_helper.h"
#include "chrome/common/pref_names.h"
#include "content/public/browser/user_metrics.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/context_menu_params.h"
#include "content/public/common/page_transition_types.h"
ContextMenuHandler::ContextMenuHandler()
: weak_ptr_factory_(this) {
}
ContextMenuHandler::~ContextMenuHandler() {
}
void ContextMenuHandler::RegisterMessages() {
web_ui()->RegisterMessageCallback("showContextMenu",
base::Bind(&ContextMenuHandler::HandleShowContextMenu,
base::Unretained(this)));
web_ui()->RegisterMessageCallback("openInNewTab",
base::Bind(&ContextMenuHandler::HandleOpenInNewTab,
base::Unretained(this)));
web_ui()->RegisterMessageCallback("openInIncognitoTab",
base::Bind(&ContextMenuHandler::HandleOpenInIncognitoTab,
base::Unretained(this)));
web_ui()->RegisterMessageCallback("getIncognitoDisabled",
base::Bind(&ContextMenuHandler::GetIncognitoDisabled,
base::Unretained(this)));
}
void ContextMenuHandler::OnItemSelected(int item_id) {
base::FundamentalValue value(item_id);
web_ui()->CallJavascriptFunction("ntp.onCustomMenuSelected", value);
}
void ContextMenuHandler::GetIncognitoDisabled(
const ListValue* args) {
DictionaryValue value;
const PrefService* pref = Profile::FromBrowserContext(
web_ui()->GetWebContents()->GetBrowserContext())->GetPrefs();
// Tell to ntp_android.js whether "open in new incognito tab" is allowed or
// not in different context menus. This property can be disabled by
// preferences (e.g. via policies).
int pref_value = pref->GetInteger(prefs::kIncognitoModeAvailability);
bool incognito_enabled = pref_value != IncognitoModePrefs::DISABLED;
value.SetBoolean("incognitoEnabled", incognito_enabled);
web_ui()->CallJavascriptFunction("ntp.setIncognitoEnabled", value);
}
void ContextMenuHandler::HandleShowContextMenu(
const ListValue* menu_list_values) {
if (menu_list_values->empty()) {
LOG(WARNING) << "Ignoring request for empty context menu.";
return;
}
// We expect menu_list_values to be of the form:
// [ [ 1, "title1" ], [ 2, "title2" ], ...]
// Where the first value in the sub-array is the item id and the second its
// title.
content::ContextMenuParams menu;
for (size_t i = 0; i < menu_list_values->GetSize(); ++i) {
ListValue* item_list_value = NULL;
bool valid_value = menu_list_values->GetList(
i, const_cast<const ListValue**>(&item_list_value));
if (!valid_value) {
LOG(ERROR) << "Invalid context menu request: menu item info " << i <<
" is not a list.";
return;
}
int id;
if (!ExtractIntegerValue(item_list_value, &id)) {
Value* value = NULL;
item_list_value->Get(0, &value);
LOG(ERROR) << "Invalid context menu request: menu item " << i <<
" expected int value for first parameter (got " <<
value->GetType() << ").";
return;
}
content::MenuItem menu_item;
menu_item.action = id;
if (!item_list_value->GetString(1, &(menu_item.label))) {
Value* value = NULL;
item_list_value->Get(1, &value);
LOG(ERROR) << "Invalid context menu request: menu item " << i <<
" expected string value for second parameter (got " <<
value->GetType() << ").";
return;
}
menu.custom_items.push_back(menu_item);
}
ContextMenuHelper* context_menu_helper =
ContextMenuHelper::FromWebContents(web_ui()->GetWebContents());
if (context_menu_helper) {
context_menu_helper->ShowCustomContextMenu(
menu,
base::Bind(&ContextMenuHandler::OnItemSelected,
weak_ptr_factory_.GetWeakPtr()));
}
}
void ContextMenuHandler::HandleOpenInNewTab(const ListValue* args) {
OpenUrl(args, NEW_FOREGROUND_TAB);
}
void ContextMenuHandler::HandleOpenInIncognitoTab(const ListValue* args) {
OpenUrl(args, OFF_THE_RECORD);
}
void ContextMenuHandler::OpenUrl(const ListValue* args,
WindowOpenDisposition disposition) {
base::string16 url = ExtractStringValue(args);
if (!url.empty()) {
web_ui()->GetWebContents()->OpenURL(content::OpenURLParams(
GURL(url), content::Referrer(), disposition,
content::PAGE_TRANSITION_AUTO_BOOKMARK, false));
}
}
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