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// Copyright (c) 2011 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/renderer/plugins/blocked_plugin.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/string_piece.h"
#include "base/string_util.h"
#include "base/values.h"
#include "chrome/common/jstemplate_builder.h"
#include "chrome/common/render_messages.h"
#include "chrome/renderer/custom_menu_commands.h"
#include "content/public/renderer/render_thread.h"
#include "content/public/renderer/render_view.h"
#include "grit/generated_resources.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebContextMenuData.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebMenuItemInfo.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebPoint.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebVector.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/resource/resource_bundle.h"
#include "webkit/glue/webpreferences.h"
#include "webkit/plugins/npapi/plugin_group.h"
#include "webkit/plugins/webview_plugin.h"
using WebKit::WebContextMenuData;
using WebKit::WebFrame;
using WebKit::WebMenuItemInfo;
using WebKit::WebPlugin;
using WebKit::WebPluginParams;
using WebKit::WebPoint;
using WebKit::WebString;
using WebKit::WebURLRequest;
using WebKit::WebVector;
using content::RenderThread;
using webkit::WebViewPlugin;
namespace {
const BlockedPlugin* g_last_active_menu = NULL;
}
// static
WebViewPlugin* BlockedPlugin::Create(content::RenderView* render_view,
WebFrame* frame,
const WebPluginParams& params,
const webkit::WebPluginInfo& plugin,
const webkit::npapi::PluginGroup* group,
int template_id,
int message_id,
bool is_blocked_for_prerendering,
bool allow_loading) {
string16 name = group->GetGroupName();
string16 message = l10n_util::GetStringFUTF16(message_id, name);
DictionaryValue values;
values.SetString("message", message);
values.SetString("name", name);
values.SetString("hide", l10n_util::GetStringUTF8(IDS_PLUGIN_HIDE));
const base::StringPiece template_html(
ResourceBundle::GetSharedInstance().GetRawDataResource(template_id));
DCHECK(!template_html.empty()) << "unable to load template. ID: "
<< template_id;
// "t" is the id of the templates root node.
std::string html_data = jstemplate_builder::GetI18nTemplateHtml(
template_html, &values);
// |blocked_plugin| will destroy itself when its WebViewPlugin is going away.
BlockedPlugin* blocked_plugin = new BlockedPlugin(
render_view, frame, params, html_data, plugin, name,
is_blocked_for_prerendering, allow_loading);
return blocked_plugin->plugin();
}
BlockedPlugin::BlockedPlugin(content::RenderView* render_view,
WebFrame* frame,
const WebPluginParams& params,
const std::string& html_data,
const webkit::WebPluginInfo& info,
const string16& name,
bool is_blocked_for_prerendering,
bool allow_loading)
: PluginPlaceholder(render_view, frame, params, html_data),
plugin_info_(info),
name_(name),
is_blocked_for_prerendering_(is_blocked_for_prerendering),
hidden_(false),
allow_loading_(allow_loading) {
}
BlockedPlugin::~BlockedPlugin() {
}
void BlockedPlugin::BindWebFrame(WebFrame* frame) {
PluginPlaceholder::BindWebFrame(frame);
BindCallback("load", base::Bind(&BlockedPlugin::LoadCallback,
base::Unretained(this)));
BindCallback("hide", base::Bind(&BlockedPlugin::HideCallback,
base::Unretained(this)));
BindCallback("openURL", base::Bind(&BlockedPlugin::OpenUrlCallback,
base::Unretained(this)));
}
void BlockedPlugin::ShowContextMenu(const WebKit::WebMouseEvent& event) {
WebContextMenuData menu_data;
size_t num_items = name_.empty() ? 2u : 4u;
WebVector<WebMenuItemInfo> custom_items(num_items);
size_t i = 0;
if (!name_.empty()) {
WebMenuItemInfo name_item;
name_item.label = name_;
name_item.hasTextDirectionOverride = false;
name_item.textDirection = WebKit::WebTextDirectionDefault;
custom_items[i++] = name_item;
WebMenuItemInfo separator_item;
separator_item.type = WebMenuItemInfo::Separator;
custom_items[i++] = separator_item;
}
WebMenuItemInfo run_item;
run_item.action = chrome::MENU_COMMAND_PLUGIN_RUN;
// Disable this menu item if the plugin is blocked by policy.
run_item.enabled = allow_loading_;
run_item.label = WebString::fromUTF8(
l10n_util::GetStringUTF8(IDS_CONTENT_CONTEXT_PLUGIN_RUN).c_str());
run_item.hasTextDirectionOverride = false;
run_item.textDirection = WebKit::WebTextDirectionDefault;
custom_items[i++] = run_item;
WebMenuItemInfo hide_item;
hide_item.action = chrome::MENU_COMMAND_PLUGIN_HIDE;
hide_item.enabled = true;
hide_item.label = WebString::fromUTF8(
l10n_util::GetStringUTF8(IDS_CONTENT_CONTEXT_PLUGIN_HIDE).c_str());
hide_item.hasTextDirectionOverride = false;
hide_item.textDirection = WebKit::WebTextDirectionDefault;
custom_items[i++] = hide_item;
menu_data.customItems.swap(custom_items);
menu_data.mousePosition = WebPoint(event.windowX, event.windowY);
render_view()->ShowContextMenu(NULL, menu_data);
g_last_active_menu = this;
}
bool BlockedPlugin::OnMessageReceived(const IPC::Message& message) {
// We don't swallow ViewMsg_CustomContextMenuAction because we listen for all
// custom menu IDs, and not just our own. We don't swallow
// ViewMsg_LoadBlockedPlugins because multiple blocked plugins have an
// interest in it.
IPC_BEGIN_MESSAGE_MAP(BlockedPlugin, message)
IPC_MESSAGE_HANDLER(ChromeViewMsg_LoadBlockedPlugins, OnLoadBlockedPlugins)
IPC_MESSAGE_HANDLER(ChromeViewMsg_SetIsPrerendering, OnSetIsPrerendering)
IPC_END_MESSAGE_MAP()
return false;
}
void BlockedPlugin::ContextMenuAction(unsigned id) {
if (g_last_active_menu != this)
return;
switch (id) {
case chrome::MENU_COMMAND_PLUGIN_RUN: {
RenderThread::Get()->RecordUserMetrics("Plugin_Load_Menu");
LoadPlugin();
break;
}
case chrome::MENU_COMMAND_PLUGIN_HIDE: {
RenderThread::Get()->RecordUserMetrics("Plugin_Hide_Menu");
HidePlugin();
break;
}
default:
NOTREACHED();
}
}
void BlockedPlugin::OnLoadBlockedPlugins() {
RenderThread::Get()->RecordUserMetrics("Plugin_Load_UI");
LoadPlugin();
}
void BlockedPlugin::OnSetIsPrerendering(bool is_prerendering) {
// Prerendering can only be enabled prior to a RenderView's first navigation,
// so no BlockedPlugin should see the notification that enables prerendering.
DCHECK(!is_prerendering);
if (is_blocked_for_prerendering_ && !is_prerendering)
LoadPlugin();
}
void BlockedPlugin::LoadPlugin() {
// This is not strictly necessary but is an important defense in case the
// event propagation changes between "close" vs. "click-to-play".
if (hidden_)
return;
if (!allow_loading_)
return;
LoadPluginInternal(plugin_info_);
}
void BlockedPlugin::LoadCallback(const CppArgumentList& args,
CppVariant* result) {
RenderThread::Get()->RecordUserMetrics("Plugin_Load_Click");
LoadPlugin();
}
void BlockedPlugin::HideCallback(const CppArgumentList& args,
CppVariant* result) {
RenderThread::Get()->RecordUserMetrics("Plugin_Hide_Click");
HidePlugin();
}
void BlockedPlugin::OpenUrlCallback(const CppArgumentList& args,
CppVariant* result) {
if (args.size() < 1) {
NOTREACHED();
return;
}
if (!args[0].isString()) {
NOTREACHED();
return;
}
GURL url(args[0].ToString());
WebURLRequest request;
request.initialize();
request.setURL(url);
render_view()->LoadURLExternally(
frame(), request, WebKit::WebNavigationPolicyNewForegroundTab);
}
void BlockedPlugin::HidePlugin() {
hidden_ = true;
HidePluginInternal();
}
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