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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 "content/public/test/test_navigation_observer.h"
#include "base/bind.h"
#include "base/message_loop.h"
#include "base/run_loop.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/render_view_host_observer.h"
#include "content/public/test/js_injection_ready_observer.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace content {
namespace {
// Allow some pending tasks up to |num_deferrals| generations to complete.
void DeferredQuitRunLoop(const base::Closure& quit_task,
int num_quit_deferrals) {
if (num_quit_deferrals <= 0) {
quit_task.Run();
} else {
MessageLoop::current()->PostTask(FROM_HERE,
base::Bind(&DeferredQuitRunLoop, quit_task, num_quit_deferrals - 1));
}
}
} // namespace
// This class observes |render_view_host| and calls OnJsInjectionReady() of
// |js_injection_ready_observer| when the time is right to inject JavaScript
// into the page.
class TestNavigationObserver::RVHOSendJS : public RenderViewHostObserver {
public:
RVHOSendJS(RenderViewHost* render_view_host,
JsInjectionReadyObserver* js_injection_ready_observer)
: RenderViewHostObserver(render_view_host),
js_injection_ready_observer_(js_injection_ready_observer) {
}
private:
// RenderViewHostObserver implementation.
virtual void RenderViewHostInitialized() OVERRIDE {
if (js_injection_ready_observer_)
js_injection_ready_observer_->OnJsInjectionReady(render_view_host());
}
JsInjectionReadyObserver* js_injection_ready_observer_;
DISALLOW_COPY_AND_ASSIGN(RVHOSendJS);
};
TestNavigationObserver::TestNavigationObserver(
const NotificationSource& source,
JsInjectionReadyObserver* js_injection_ready_observer,
int number_of_navigations)
: navigation_started_(false),
navigations_completed_(0),
number_of_navigations_(number_of_navigations),
js_injection_ready_observer_(js_injection_ready_observer),
done_(false),
running_(false) {
// When javascript injection is requested, register for RenderViewHost
// creation.
if (js_injection_ready_observer_) {
registrar_.Add(this, NOTIFICATION_RENDER_VIEW_HOST_CREATED,
NotificationService::AllSources());
}
RegisterAsObserver(source);
}
TestNavigationObserver::TestNavigationObserver(
const NotificationSource& source)
: navigation_started_(false),
navigations_completed_(0),
number_of_navigations_(1),
js_injection_ready_observer_(NULL),
done_(false),
running_(false) {
RegisterAsObserver(source);
}
TestNavigationObserver::~TestNavigationObserver() {
}
void TestNavigationObserver::WaitForObservation(
const base::Closure& wait_loop_callback,
const base::Closure& done_callback) {
if (done_)
return;
EXPECT_FALSE(running_);
running_ = true;
done_callback_ = done_callback;
wait_loop_callback.Run();
EXPECT_TRUE(done_);
}
void TestNavigationObserver::Wait() {
base::RunLoop run_loop;
// Number of times to repost Quit task to allow pending tasks to complete. See
// kNumQuitDeferrals in ui_test_utils.cc for explanation.
const int num_quit_deferrals = 10;
WaitForObservation(
base::Bind(&base::RunLoop::Run, base::Unretained(&run_loop)),
base::Bind(&DeferredQuitRunLoop, run_loop.QuitClosure(),
num_quit_deferrals));
}
TestNavigationObserver::TestNavigationObserver(
JsInjectionReadyObserver* js_injection_ready_observer,
int number_of_navigations)
: navigation_started_(false),
navigations_completed_(0),
number_of_navigations_(number_of_navigations),
js_injection_ready_observer_(js_injection_ready_observer),
done_(false),
running_(false) {
// When javascript injection is requested, register for RenderViewHost
// creation.
if (js_injection_ready_observer_) {
registrar_.Add(this, NOTIFICATION_RENDER_VIEW_HOST_CREATED,
NotificationService::AllSources());
}
}
void TestNavigationObserver::RegisterAsObserver(
const NotificationSource& source) {
// Register for events to know when we've finished loading the page and are
// ready to quit the current message loop to return control back to the
// waiting test.
registrar_.Add(this, NOTIFICATION_NAV_ENTRY_COMMITTED, source);
registrar_.Add(this, NOTIFICATION_LOAD_START, source);
registrar_.Add(this, NOTIFICATION_LOAD_STOP, source);
}
void TestNavigationObserver::Observe(
int type, const NotificationSource& source,
const NotificationDetails& details) {
switch (type) {
case NOTIFICATION_NAV_ENTRY_COMMITTED:
case NOTIFICATION_LOAD_START:
navigation_started_ = true;
break;
case NOTIFICATION_LOAD_STOP:
if (navigation_started_ &&
++navigations_completed_ == number_of_navigations_) {
navigation_started_ = false;
done_ = true;
if (running_) {
running_ = false;
done_callback_.Run();
}
}
break;
case NOTIFICATION_RENDER_VIEW_HOST_CREATED:
rvho_send_js_.reset(new RVHOSendJS(
Source<RenderViewHost>(source).ptr(),
js_injection_ready_observer_));
break;
default:
NOTREACHED();
}
}
} // namespace content
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