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// Copyright (c) 2009 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/dom_ui/dom_ui.h"
#include "base/i18n/rtl.h"
#include "base/json/json_writer.h"
#include "base/stl_util-inl.h"
#include "base/string_util.h"
#include "base/utf_string_conversions.h"
#include "base/values.h"
#include "chrome/browser/browser_theme_provider.h"
#include "chrome/browser/profile.h"
#include "chrome/browser/renderer_host/render_view_host.h"
#include "chrome/browser/tab_contents/tab_contents.h"
#include "chrome/browser/tab_contents/tab_contents_view.h"
#include "chrome/common/bindings_policy.h"
DOMUI::DOMUI(TabContents* contents)
: hide_favicon_(false),
force_bookmark_bar_visible_(false),
force_extension_shelf_visible_(false),
focus_location_bar_by_default_(false),
should_hide_url_(false),
link_transition_type_(PageTransition::LINK),
bindings_(BindingsPolicy::DOM_UI),
tab_contents_(contents) {
}
DOMUI::~DOMUI() {
STLDeleteContainerPairSecondPointers(message_callbacks_.begin(),
message_callbacks_.end());
STLDeleteContainerPointers(handlers_.begin(), handlers_.end());
}
// DOMUI, public: -------------------------------------------------------------
void DOMUI::ProcessDOMUIMessage(const std::string& message,
const ListValue* content,
const GURL& source_url,
int request_id,
bool has_callback) {
// Look up the callback for this message.
MessageCallbackMap::const_iterator callback =
message_callbacks_.find(message);
if (callback == message_callbacks_.end())
return;
// Forward this message and content on.
callback->second->Run(content);
}
void DOMUI::CallJavascriptFunction(const std::wstring& function_name) {
std::wstring javascript = function_name + L"();";
ExecuteJavascript(javascript);
}
void DOMUI::CallJavascriptFunction(const std::wstring& function_name,
const Value& arg) {
std::string json;
base::JSONWriter::Write(&arg, false, &json);
std::wstring javascript = function_name + L"(" + UTF8ToWide(json) + L");";
ExecuteJavascript(javascript);
}
void DOMUI::CallJavascriptFunction(
const std::wstring& function_name,
const Value& arg1, const Value& arg2) {
std::string json;
base::JSONWriter::Write(&arg1, false, &json);
std::wstring javascript = function_name + L"(" + UTF8ToWide(json);
base::JSONWriter::Write(&arg2, false, &json);
javascript += L"," + UTF8ToWide(json) + L");";
ExecuteJavascript(javascript);
}
ThemeProvider* DOMUI::GetThemeProvider() const {
return tab_contents_->profile()->GetThemeProvider();
}
void DOMUI::RegisterMessageCallback(const std::string &message,
MessageCallback *callback) {
message_callbacks_.insert(std::make_pair(message, callback));
}
Profile* DOMUI::GetProfile() {
return tab_contents()->profile();
}
// DOMUI, protected: ----------------------------------------------------------
void DOMUI::AddMessageHandler(DOMMessageHandler* handler) {
handlers_.push_back(handler);
}
// DOMUI, private: ------------------------------------------------------------
void DOMUI::ExecuteJavascript(const std::wstring& javascript) {
tab_contents()->render_view_host()->ExecuteJavascriptInWebFrame(
std::wstring(), javascript);
}
///////////////////////////////////////////////////////////////////////////////
// DOMMessageHandler
DOMMessageHandler* DOMMessageHandler::Attach(DOMUI* dom_ui) {
dom_ui_ = dom_ui;
RegisterMessages();
return this;
}
// DOMMessageHandler, protected: ----------------------------------------------
void DOMMessageHandler::SetURLAndTitle(DictionaryValue* dictionary,
string16 title,
const GURL& gurl) {
string16 url16 = UTF8ToUTF16(gurl.spec());
dictionary->SetStringFromUTF16(L"url", url16);
bool using_url_as_the_title = false;
if (title.empty()) {
using_url_as_the_title = true;
title = url16;
}
// Since the title can contain BiDi text, we need to mark the text as either
// RTL or LTR, depending on the characters in the string. If we use the URL
// as the title, we mark the title as LTR since URLs are always treated as
// left to right strings.
string16 title_to_set(title);
if (base::i18n::IsRTL()) {
if (using_url_as_the_title) {
base::i18n::WrapStringWithLTRFormatting(&title_to_set);
} else {
bool success =
base::i18n::AdjustStringForLocaleDirection(title, &title_to_set);
DCHECK(success ? (title != title_to_set) : (title == title_to_set));
}
}
dictionary->SetStringFromUTF16(L"title", title_to_set);
}
bool DOMMessageHandler::ExtractIntegerValue(const Value* value, int* out_int) {
if (value && value->GetType() == Value::TYPE_LIST) {
const ListValue* list_value = static_cast<const ListValue*>(value);
std::string string_value;
if (list_value->GetString(0, &string_value)) {
*out_int = StringToInt(string_value);
return true;
}
}
return false;
}
std::wstring DOMMessageHandler::ExtractStringValue(const Value* value) {
if (value && value->GetType() == Value::TYPE_LIST) {
const ListValue* list_value = static_cast<const ListValue*>(value);
std::wstring wstring_value;
if (list_value->GetString(0, &wstring_value))
return wstring_value;
}
return std::wstring();
}
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