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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/test/ui_test_utils.h"
#include "base/json_reader.h"
#include "base/message_loop.h"
#include "base/path_service.h"
#include "base/values.h"
#include "chrome/browser/browser.h"
#include "chrome/browser/dom_operation_notification_details.h"
#include "chrome/browser/tab_contents/navigation_controller.h"
#include "chrome/browser/tab_contents/tab_contents.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/common/notification_registrar.h"
#include "chrome/common/notification_service.h"
#if defined (OS_WIN)
#include "views/widget/accelerator_handler.h"
#endif
#include "googleurl/src/gurl.h"
#include "net/base/net_util.h"
namespace ui_test_utils {
namespace {
// Used to block until a navigation completes.
class NavigationNotificationObserver : public NotificationObserver {
public:
NavigationNotificationObserver(NavigationController* controller,
int number_of_navigations)
: navigation_started_(false),
navigations_completed_(0),
number_of_navigations_(number_of_navigations) {
registrar_.Add(this, NotificationType::NAV_ENTRY_COMMITTED,
Source<NavigationController>(controller));
registrar_.Add(this, NotificationType::LOAD_START,
Source<NavigationController>(controller));
registrar_.Add(this, NotificationType::LOAD_STOP,
Source<NavigationController>(controller));
RunMessageLoop();
}
virtual void Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details) {
if (type == NotificationType::NAV_ENTRY_COMMITTED ||
type == NotificationType::LOAD_START) {
navigation_started_ = true;
} else if (type == NotificationType::LOAD_STOP) {
if (navigation_started_ &&
++navigations_completed_ == number_of_navigations_) {
navigation_started_ = false;
MessageLoopForUI::current()->Quit();
}
}
}
private:
NotificationRegistrar registrar_;
// If true the navigation has started.
bool navigation_started_;
// The number of navigations that have been completed.
int navigations_completed_;
// The number of navigations to wait for.
int number_of_navigations_;
DISALLOW_COPY_AND_ASSIGN(NavigationNotificationObserver);
};
class DOMOperationObserver : public NotificationObserver {
public:
explicit DOMOperationObserver(TabContents* tab_contents) {
registrar_.Add(this, NotificationType::DOM_OPERATION_RESPONSE,
Source<TabContents>(tab_contents));
RunMessageLoop();
}
virtual void Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details) {
DCHECK(type == NotificationType::DOM_OPERATION_RESPONSE);
Details<DomOperationNotificationDetails> dom_op_details(details);
response_ = dom_op_details->json();
MessageLoopForUI::current()->Quit();
}
std::string response() const { return response_; }
private:
NotificationRegistrar registrar_;
std::string response_;
DISALLOW_COPY_AND_ASSIGN(DOMOperationObserver);
};
} // namespace
void RunMessageLoop() {
MessageLoopForUI* loop = MessageLoopForUI::current();
bool did_allow_task_nesting = loop->NestableTasksAllowed();
loop->SetNestableTasksAllowed(true);
#if defined (OS_WIN)
views::AcceleratorHandler handler;
loop->Run(&handler);
#else
loop->Run();
#endif
loop->SetNestableTasksAllowed(did_allow_task_nesting);
}
void WaitForNavigation(NavigationController* controller) {
WaitForNavigations(controller, 1);
}
void WaitForNavigations(NavigationController* controller,
int number_of_navigations) {
NavigationNotificationObserver observer(controller, number_of_navigations);
}
void NavigateToURL(Browser* browser, const GURL& url) {
NavigateToURLBlockUntilNavigationsComplete(browser, url, 1);
}
void NavigateToURLBlockUntilNavigationsComplete(Browser* browser,
const GURL& url,
int number_of_navigations) {
NavigationController* controller =
&browser->GetSelectedTabContents()->controller();
browser->OpenURL(url, GURL(), CURRENT_TAB, PageTransition::TYPED);
WaitForNavigations(controller, number_of_navigations);
}
Value* ExecuteJavaScript(TabContents* tab_contents,
const std::wstring& frame_xpath,
const std::wstring& original_script) {
// TODO(jcampan): we should make the domAutomationController not require an
// automation id.
std::wstring script = L"window.domAutomationController.setAutomationId(0);" +
original_script;
tab_contents->render_view_host()->ExecuteJavascriptInWebFrame(frame_xpath,
script);
DOMOperationObserver dom_op_observer(tab_contents);
std::string json = dom_op_observer.response();
// Wrap |json| in an array before deserializing because valid JSON has an
// array or an object as the root.
json.insert(0, "[");
json.append("]");
scoped_ptr<Value> root_val(JSONReader::Read(json, true));
if (!root_val->IsType(Value::TYPE_LIST))
return NULL;
ListValue* list = static_cast<ListValue*>(root_val.get());
Value* result;
if (!list || !list->GetSize() ||
!list->Remove(0, &result)) // Remove gives us ownership of the value.
return NULL;
return result;
}
bool ExecuteJavaScriptAndExtractInt(TabContents* tab_contents,
const std::wstring& frame_xpath,
const std::wstring& script,
int* result) {
DCHECK(result);
scoped_ptr<Value> value(ExecuteJavaScript(tab_contents, frame_xpath, script));
if (!value.get())
return false;
return value->GetAsInteger(result);
}
bool ExecuteJavaScriptAndExtractBool(TabContents* tab_contents,
const std::wstring& frame_xpath,
const std::wstring& script,
bool* result) {
DCHECK(result);
scoped_ptr<Value> value(ExecuteJavaScript(tab_contents, frame_xpath, script));
if (!value.get())
return false;
return value->GetAsBoolean(result);
}
bool ExecuteJavaScriptAndExtractString(TabContents* tab_contents,
const std::wstring& frame_xpath,
const std::wstring& script,
std::string* result) {
DCHECK(result);
scoped_ptr<Value> value(ExecuteJavaScript(tab_contents, frame_xpath, script));
if (!value.get())
return false;
return value->GetAsString(result);
}
GURL GetTestUrl(const std::wstring& dir, const std::wstring file) {
FilePath path;
PathService::Get(chrome::DIR_TEST_DATA, &path);
path = path.Append(FilePath::FromWStringHack(dir));
path = path.Append(FilePath::FromWStringHack(file));
return net::FilePathToFileURL(path);
}
} // namespace ui_test_utils
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