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Commit 1a0ff235 authored by Mugdha Lakhani's avatar Mugdha Lakhani Committed by Commit Bot
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[WebLayer] Add Prerender API 

Expose an API to perform a prerender (implemented using
NoStatePrefetch).

A browsertest and a javatest have been added to verify the expected
behavior.

Bug: 1136091
Change-Id: I158b5b954fbbf2e3cb9821180d6afd6aa042abd2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2470634
Commit-Queue: Mugdha Lakhani <nator@chromium.org>
Reviewed-by: default avatarScott Violet <sky@chromium.org>
Reviewed-by: default avatarRyan Sturm <ryansturm@chromium.org>
Reviewed-by: default avatarColin Blundell <blundell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#819762}
parent c93a3aa7
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Inline Side-by-side
Showing with 425 additions and 6 deletions
components/prerender/browser/prerender_contents.cc
View file @ 1a0ff235
......@@ -190,7 +190,8 @@ void PrerenderContents::StartPrerendering(
DCHECK(!prerender_contents_);
DCHECK_EQ(1U, alias_urls_.size());
session_storage_namespace_id_ = session_storage_namespace->id();
if (session_storage_namespace)
session_storage_namespace_id_ = session_storage_namespace->id();
bounds_ = bounds;
DCHECK(load_start_time_.is_null());
......
weblayer/BUILD.gn
View file @ 1a0ff235
......@@ -209,6 +209,8 @@ source_set("weblayer_lib_base") {
"browser/navigation_impl.h",
"browser/navigation_ui_data_impl.cc",
"browser/navigation_ui_data_impl.h",
"browser/no_state_prefetch/prerender_controller_impl.cc",
"browser/no_state_prefetch/prerender_controller_impl.h",
"browser/no_state_prefetch/prerender_link_manager_factory.cc",
"browser/no_state_prefetch/prerender_link_manager_factory.h",
"browser/no_state_prefetch/prerender_manager_delegate_impl.cc",
......@@ -325,6 +327,7 @@ source_set("weblayer_lib_base") {
"public/navigation_controller.h",
"public/navigation_observer.h",
"public/new_tab_delegate.h",
"public/prerender_controller.h",
"public/profile.h",
"public/tab.h",
"public/tab_observer.h",
......
weblayer/browser/android/javatests/BUILD.gn
View file @ 1a0ff235
......@@ -29,6 +29,7 @@ android_library("weblayer_java_tests") {
"src/org/chromium/weblayer/test/NavigationTest.java",
"src/org/chromium/weblayer/test/NewTabCallbackTest.java",
"src/org/chromium/weblayer/test/OnTabRemovedTabListCallbackImpl.java",
"src/org/chromium/weblayer/test/PrerenderControllerTest.java",
"src/org/chromium/weblayer/test/ProfileTest.java",
"src/org/chromium/weblayer/test/RenderingTest.java",
"src/org/chromium/weblayer/test/ScrollOffsetCallbackTest.java",
......
weblayer/browser/android/javatests/src/org/chromium/weblayer/test/PrerenderControllerTest.java 0 → 100644
View file @ 1a0ff235
// Copyright 2020 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.
package org.chromium.weblayer.test;
import android.net.Uri;
import androidx.test.filters.SmallTest;
import org.junit.Assert;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.chromium.base.test.util.CallbackHelper;
import org.chromium.base.test.util.Feature;
import org.chromium.content_public.browser.test.util.TestThreadUtils;
import org.chromium.net.test.util.TestWebServer;
import org.chromium.net.test.util.WebServer;
import org.chromium.weblayer.PrerenderController;
import org.chromium.weblayer.shell.InstrumentationActivity;
import java.io.IOException;
import java.io.OutputStream;
/** Tests verifying PrerenderController behavior. */
@RunWith(WebLayerJUnit4ClassRunner.class)
public class PrerenderControllerTest {
private static final String DEFAULT_BODY = "<html><title>TestPage</title>Hello World!</html>";
private CallbackHelper mPrerenderedPageFetched;
private WebServer.RequestHandler mRequestHandler = new WebServer.RequestHandler() {
@Override
public void handleRequest(WebServer.HTTPRequest request, OutputStream stream) {
try {
if (request.getURI().contains("prerendered_page.html")) {
TestThreadUtils.runOnUiThreadBlocking(
() -> mPrerenderedPageFetched.notifyCalled());
}
WebServer.writeResponse(stream, WebServer.STATUS_OK, DEFAULT_BODY.getBytes());
} catch (IOException exception) {
Assert.fail(exception.getMessage()
+ " \n while handling request: " + request.toString());
}
}
};
@Rule
public InstrumentationActivityTestRule mActivityTestRule =
new InstrumentationActivityTestRule();
@Test
@SmallTest
@Feature({"WebLayer"})
public void testAddingPrerender() throws Exception {
TestWebServer testServer = TestWebServer.start();
testServer.setRequestHandler(mRequestHandler);
mPrerenderedPageFetched = new CallbackHelper();
InstrumentationActivity activity = mActivityTestRule.launchShellWithUrl(null);
TestThreadUtils.runOnUiThreadBlocking(() -> {
PrerenderController prerenderController =
activity.getBrowser().getProfile().getPrerenderController();
prerenderController.schedulePrerender(
Uri.parse(testServer.getResponseUrl("/prerendered_page.html")));
});
mPrerenderedPageFetched.waitForFirst();
}
}
weblayer/browser/java/BUILD.gn
View file @ 1a0ff235
......@@ -129,6 +129,7 @@ android_library("java") {
"org/chromium/weblayer_private/NavigationImpl.java",
"org/chromium/weblayer_private/NewTabCallbackProxy.java",
"org/chromium/weblayer_private/PageInfoControllerDelegateImpl.java",
"org/chromium/weblayer_private/PrerenderControllerImpl.java",
"org/chromium/weblayer_private/ProfileImpl.java",
"org/chromium/weblayer_private/ProfileManager.java",
"org/chromium/weblayer_private/RemoteFragmentImpl.java",
......@@ -331,6 +332,7 @@ generate_jni("jni") {
"org/chromium/weblayer_private/NavigationControllerImpl.java",
"org/chromium/weblayer_private/NavigationImpl.java",
"org/chromium/weblayer_private/NewTabCallbackProxy.java",
"org/chromium/weblayer_private/PrerenderControllerImpl.java",
"org/chromium/weblayer_private/ProfileImpl.java",
"org/chromium/weblayer_private/TabCallbackProxy.java",
"org/chromium/weblayer_private/TabImpl.java",
......@@ -432,6 +434,7 @@ android_aidl("aidl") {
"org/chromium/weblayer_private/interfaces/INavigationController.aidl",
"org/chromium/weblayer_private/interfaces/INavigationControllerClient.aidl",
"org/chromium/weblayer_private/interfaces/IObjectWrapper.aidl",
"org/chromium/weblayer_private/interfaces/IPrerenderController.aidl",
"org/chromium/weblayer_private/interfaces/IProfile.aidl",
"org/chromium/weblayer_private/interfaces/IRemoteFragment.aidl",
"org/chromium/weblayer_private/interfaces/IRemoteFragmentClient.aidl",
......
weblayer/browser/java/org/chromium/weblayer_private/PrerenderControllerImpl.java 0 → 100644
View file @ 1a0ff235
// Copyright 2020 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.
package org.chromium.weblayer_private;
import org.chromium.base.LifetimeAssert;
import org.chromium.base.annotations.JNINamespace;
import org.chromium.base.annotations.NativeMethods;
import org.chromium.weblayer_private.interfaces.IPrerenderController;
/**
* Implementation of {@link IPrerenderController}.
*/
@JNINamespace("weblayer")
public class PrerenderControllerImpl extends IPrerenderController.Stub {
private long mNativePrerenderController;
private final LifetimeAssert mLifetimeAssert = LifetimeAssert.create(this);
void destroy() {
mNativePrerenderController = 0;
// If mLifetimeAssert is GC'ed before this is called, it will throw an exception
// with a stack trace showing the stack during LifetimeAssert.create().
LifetimeAssert.setSafeToGc(mLifetimeAssert, true);
}
public PrerenderControllerImpl(long nativePrerenderController) {
mNativePrerenderController = nativePrerenderController;
}
@Override
public void prerender(String url) {
PrerenderControllerImplJni.get().prerender(mNativePrerenderController, url);
}
@NativeMethods()
interface Natives {
void prerender(long nativePrerenderControllerImpl, String url);
}
}
weblayer/browser/java/org/chromium/weblayer_private/ProfileImpl.java
View file @ 1a0ff235
......@@ -21,6 +21,7 @@ import org.chromium.weblayer_private.interfaces.BrowsingDataType;
import org.chromium.weblayer_private.interfaces.ICookieManager;
import org.chromium.weblayer_private.interfaces.IDownloadCallbackClient;
import org.chromium.weblayer_private.interfaces.IObjectWrapper;
import org.chromium.weblayer_private.interfaces.IPrerenderController;
import org.chromium.weblayer_private.interfaces.IProfile;
import org.chromium.weblayer_private.interfaces.IUserIdentityCallbackClient;
import org.chromium.weblayer_private.interfaces.ObjectWrapper;
......@@ -41,6 +42,7 @@ public final class ProfileImpl extends IProfile.Stub implements BrowserContextHa
private final String mName;
private long mNativeProfile;
private CookieManagerImpl mCookieManager;
private PrerenderControllerImpl mPrerenderController;
private Runnable mOnDestroyCallback;
private boolean mBeingDeleted;
private boolean mDownloadsInitialized;
......@@ -61,6 +63,8 @@ public final class ProfileImpl extends IProfile.Stub implements BrowserContextHa
mNativeProfile = ProfileImplJni.get().createProfile(name, ProfileImpl.this);
mCookieManager =
new CookieManagerImpl(ProfileImplJni.get().getCookieManager(mNativeProfile));
mPrerenderController = new PrerenderControllerImpl(
ProfileImplJni.get().getPrerenderController(mNativeProfile));
mOnDestroyCallback = onDestroyCallback;
mDownloadCallbackProxy = new DownloadCallbackProxy(mName, mNativeProfile);
}
......@@ -75,6 +79,11 @@ public final class ProfileImpl extends IProfile.Stub implements BrowserContextHa
mCookieManager.destroy();
mCookieManager = null;
}
if (mPrerenderController != null) {
mPrerenderController.destroy();
mPrerenderController = null;
}
}
@Override
......@@ -185,6 +194,13 @@ public final class ProfileImpl extends IProfile.Stub implements BrowserContextHa
return mCookieManager;
}
@Override
public IPrerenderController getPrerenderController() {
StrictModeWorkaround.apply();
checkNotDestroyed();
return mPrerenderController;
}
@Override
public void getBrowserPersistenceIds(@NonNull IObjectWrapper callback) {
StrictModeWorkaround.apply();
......@@ -293,6 +309,7 @@ public final class ProfileImpl extends IProfile.Stub implements BrowserContextHa
long fromMillis, long toMillis, Runnable callback);
void setDownloadDirectory(long nativeProfileImpl, String directory);
long getCookieManager(long nativeProfileImpl);
long getPrerenderController(long nativeProfileImpl);
void ensureBrowserContextInitialized(long nativeProfileImpl);
void setBooleanSetting(long nativeProfileImpl, int type, boolean value);
boolean getBooleanSetting(long nativeProfileImpl, int type);
......
weblayer/browser/java/org/chromium/weblayer_private/interfaces/IPrerenderController.aidl 0 → 100644
View file @ 1a0ff235
// Copyright 2020 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.
package org.chromium.weblayer_private.interfaces;
interface IPrerenderController {
// Since 88
void prerender(in String url) = 0;
}
weblayer/browser/java/org/chromium/weblayer_private/interfaces/IProfile.aidl
View file @ 1a0ff235
......@@ -8,6 +8,7 @@ import org.chromium.weblayer_private.interfaces.ICookieManager;
import org.chromium.weblayer_private.interfaces.IDownloadCallbackClient;
import org.chromium.weblayer_private.interfaces.IUserIdentityCallbackClient;
import org.chromium.weblayer_private.interfaces.IObjectWrapper;
import org.chromium.weblayer_private.interfaces.IPrerenderController;
interface IProfile {
void destroy() = 0;
......@@ -44,4 +45,7 @@ interface IProfile {
// Added in Version 87.
void setUserIdentityCallbackClient(IUserIdentityCallbackClient client) = 13;
// Added in Version 88.
IPrerenderController getPrerenderController() = 15;
}
weblayer/browser/no_state_prefetch/no_state_prefetch_browsertest.cc
View file @ 1a0ff235
......@@ -20,6 +20,7 @@
#include "weblayer/browser/no_state_prefetch/prerender_manager_factory.h"
#include "weblayer/browser/profile_impl.h"
#include "weblayer/browser/tab_impl.h"
#include "weblayer/public/prerender_controller.h"
#include "weblayer/shell/browser/shell.h"
#include "weblayer/test/weblayer_browser_test.h"
#include "weblayer/test/weblayer_browser_test_utils.h"
......@@ -68,15 +69,14 @@ class NoStatePrefetchBrowserTest : public WebLayerBrowserTest {
std::unique_ptr<net::test_server::HttpResponse> HandleRequest(
const net::test_server::HttpRequest& request) {
if (request.GetURL().path().find("prerendered_page") != std::string::npos) {
if (prerendered_page_fetched_)
prerendered_page_fetched_->Quit();
prerendered_page_fetched_->Quit();
prerendered_page_was_fetched_ = true;
}
if (request.GetURL().path().find("prefetch.js") != std::string::npos) {
script_fetched_ = true;
auto iter = request.headers.find("Purpose");
purpose_header_value_ = iter->second;
if (script_resource_fetched_)
script_resource_fetched_->Quit();
script_resource_fetched_->Quit();
}
if (request.GetURL().path().find("prefetch_meta.js") != std::string::npos) {
script_executed_ = true;
......@@ -103,6 +103,7 @@ class NoStatePrefetchBrowserTest : public WebLayerBrowserTest {
std::unique_ptr<base::RunLoop> prerendered_page_fetched_;
std::unique_ptr<base::RunLoop> script_resource_fetched_;
bool prerendered_page_was_fetched_ = false;
bool script_fetched_ = false;
bool script_executed_ = false;
std::string purpose_header_value_;
......@@ -205,4 +206,33 @@ IN_PROC_BROWSER_TEST_F(NoStatePrefetchBrowserTest, LinkRelNextWithNSPDisabled) {
prerendered_page_fetched_->Run();
}
} // namespace weblayer
\ No newline at end of file
// Non-web initiated prerender succeeds and subsequent navigations reuse
// previously downloaded resources.
IN_PROC_BROWSER_TEST_F(NoStatePrefetchBrowserTest, ExternalPrerender) {
// std::unique_ptr<PrerenderControllerImpl> controller =
// PrerenderControllerImpl::Create(shell()->browser());
GetProfile()->GetPrerenderController()->Prerender(
GURL(https_server_->GetURL("/prerendered_page.html")));
script_resource_fetched_->Run();
// Navigate to the prerendered page and wait for its title to change.
script_fetched_ = false;
NavigateToPageAndWaitForTitleChange(
GURL(https_server_->GetURL("/prerendered_page.html")),
base::ASCIIToUTF16("Prefetch Page"));
EXPECT_FALSE(script_fetched_);
}
// Non-web initiated prerender fails when the user has opted out.
IN_PROC_BROWSER_TEST_F(NoStatePrefetchBrowserTest,
ExternalPrerenderWhenOptedOut) {
GetProfile()->SetBooleanSetting(SettingType::NETWORK_PREDICTION_ENABLED,
false);
GetProfile()->GetPrerenderController()->Prerender(
GURL(https_server_->GetURL("/prerendered_page.html")));
base::RunLoop().RunUntilIdle();
EXPECT_FALSE(prerendered_page_was_fetched_);
}
} // namespace weblayer
weblayer/browser/no_state_prefetch/prerender_controller_impl.cc 0 → 100644
View file @ 1a0ff235
// Copyright 2020 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 "weblayer/browser/no_state_prefetch/prerender_controller_impl.h"
#include "build/build_config.h"
#include "components/prerender/browser/prerender_handle.h"
#include "components/prerender/browser/prerender_manager.h"
#include "content/public/browser/browser_context.h"
#include "ui/gfx/geometry/rect.h"
#include "url/gurl.h"
#include "weblayer/browser/no_state_prefetch/prerender_manager_factory.h"
#if defined(OS_ANDROID)
#include "base/android/jni_string.h"
#include "weblayer/browser/java/jni/PrerenderControllerImpl_jni.h"
#endif
namespace weblayer {
PrerenderControllerImpl::PrerenderControllerImpl(
content::BrowserContext* browser_context)
: browser_context_(browser_context) {
DCHECK(browser_context_);
}
PrerenderControllerImpl::~PrerenderControllerImpl() = default;
#if defined(OS_ANDROID)
void PrerenderControllerImpl::Prerender(
JNIEnv* env,
const base::android::JavaParamRef<jstring>& url) {
Prerender(GURL(ConvertJavaStringToUTF8(url)));
}
#endif
void PrerenderControllerImpl::Prerender(const GURL& url) {
auto* prerender_manager =
PrerenderManagerFactory::GetForBrowserContext(browser_context_);
DCHECK(prerender_manager);
// The referrer parameter results in a header being set that lets the server
// serving the URL being prerendered see where the request originated. It's
// an optional header, it's okay to skip setting it here.
// SessionStorageNamespace isn't necessary for NoStatePrefetch, so it's okay
// to pass in a nullptr.
// PrerenderManager uses default bounds if the one provided is empty.
prerender_manager->AddPrerenderFromExternalRequest(
url, content::Referrer(), /* session_storage_namespace= */ nullptr,
/* bounds= */ gfx::Rect());
}
} // namespace weblayer
weblayer/browser/no_state_prefetch/prerender_controller_impl.h 0 → 100644
View file @ 1a0ff235
// Copyright 2020 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.
#ifndef WEBLAYER_BROWSER_NO_STATE_PREFETCH_PRERENDER_CONTROLLER_IMPL_H_
#define WEBLAYER_BROWSER_NO_STATE_PREFETCH_PRERENDER_CONTROLLER_IMPL_H_
#include <memory>
#include "build/build_config.h"
#include "weblayer/public/prerender_controller.h"
#if defined(OS_ANDROID)
#include "base/android/scoped_java_ref.h"
#endif
class GURL;
namespace content {
class BrowserContext;
}
namespace weblayer {
// Enables creation of a non-web initiated prerender request.
class PrerenderControllerImpl : public PrerenderController {
public:
explicit PrerenderControllerImpl(content::BrowserContext* browser_context);
~PrerenderControllerImpl() override;
PrerenderControllerImpl(const PrerenderControllerImpl&) = delete;
PrerenderControllerImpl& operator=(const PrerenderControllerImpl&) = delete;
#if defined(OS_ANDROID)
void Prerender(JNIEnv* env, const base::android::JavaParamRef<jstring>& url);
#endif
// PrerenderController
void Prerender(const GURL& url) override;
private:
content::BrowserContext* browser_context_;
};
} // namespace weblayer
#endif // WEBLAYER_BROWSER_NO_STATE_PREFETCH_PRERENDER_CONTROLLER_IMPL_H_
weblayer/browser/profile_impl.cc
View file @ 1a0ff235
......@@ -40,6 +40,7 @@
#include "weblayer/browser/cookie_manager_impl.h"
#include "weblayer/browser/favicon/favicon_service_impl.h"
#include "weblayer/browser/favicon/favicon_service_impl_factory.h"
#include "weblayer/browser/no_state_prefetch/prerender_controller_impl.h"
#include "weblayer/browser/persistence/browser_persister_file_utils.h"
#include "weblayer/browser/tab_impl.h"
......@@ -314,6 +315,13 @@ CookieManager* ProfileImpl::GetCookieManager() {
return cookie_manager_.get();
}
PrerenderController* ProfileImpl::GetPrerenderController() {
if (!prerender_controller_)
prerender_controller_ =
std::make_unique<PrerenderControllerImpl>(GetBrowserContext());
return prerender_controller_.get();
}
void ProfileImpl::GetBrowserPersistenceIds(
base::OnceCallback<void(base::flat_set<std::string>)> callback) {
DCHECK(!browser_context_->IsOffTheRecord());
......@@ -511,6 +519,10 @@ jlong ProfileImpl::GetCookieManager(JNIEnv* env) {
return reinterpret_cast<jlong>(GetCookieManager());
}
jlong ProfileImpl::GetPrerenderController(JNIEnv* env) {
return reinterpret_cast<jlong>(GetPrerenderController());
}
void ProfileImpl::EnsureBrowserContextInitialized(JNIEnv* env) {
content::BrowserContext::GetDownloadManager(GetBrowserContext());
}
......
weblayer/browser/profile_impl.h
View file @ 1a0ff235
......@@ -30,6 +30,7 @@ class WebContents;
namespace weblayer {
class BrowserContextImpl;
class CookieManagerImpl;
class PrerenderControllerImpl;
class ProfileImpl : public Profile {
public:
......@@ -91,6 +92,7 @@ class ProfileImpl : public Profile {
void SetDownloadDirectory(const base::FilePath& directory) override;
void SetDownloadDelegate(DownloadDelegate* delegate) override;
CookieManager* GetCookieManager() override;
PrerenderController* GetPrerenderController() override;
void GetBrowserPersistenceIds(
base::OnceCallback<void(base::flat_set<std::string>)> callback) override;
void RemoveBrowserPersistenceStorage(
......@@ -123,6 +125,7 @@ class ProfileImpl : public Profile {
JNIEnv* env,
const base::android::JavaParamRef<jstring>& directory);
jlong GetCookieManager(JNIEnv* env);
jlong GetPrerenderController(JNIEnv* env);
void EnsureBrowserContextInitialized(JNIEnv* env);
void SetBooleanSetting(JNIEnv* env, jint j_type, jboolean j_value);
jboolean GetBooleanSetting(JNIEnv* env, jint j_type);
......@@ -176,6 +179,7 @@ class ProfileImpl : public Profile {
std::unique_ptr<i18n::LocaleChangeSubscription> locale_change_subscription_;
std::unique_ptr<CookieManagerImpl> cookie_manager_;
std::unique_ptr<PrerenderControllerImpl> prerender_controller_;
#if defined(OS_ANDROID)
base::android::ScopedJavaGlobalRef<jobject> java_profile_;
......
weblayer/public/java/BUILD.gn
View file @ 1a0ff235
......@@ -81,6 +81,7 @@ android_library("java") {
"org/chromium/weblayer/NewTabCallback.java",
"org/chromium/weblayer/NewTabType.java",
"org/chromium/weblayer/ObserverList.java",
"org/chromium/weblayer/PrerenderController.java",
"org/chromium/weblayer/Profile.java",
"org/chromium/weblayer/RemoteFragment.java",
"org/chromium/weblayer/RemoteMediaService.java",
......
weblayer/public/java/org/chromium/weblayer/PrerenderController.java 0 → 100644
View file @ 1a0ff235
// Copyright 2020 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.
package org.chromium.weblayer;
import android.net.Uri;
import android.os.RemoteException;
import androidx.annotation.NonNull;
import org.chromium.weblayer_private.interfaces.APICallException;
import org.chromium.weblayer_private.interfaces.IPrerenderController;
import org.chromium.weblayer_private.interfaces.IProfile;
/**
* PrerenderController enables prerendering of urls.
*
* Prerendering has the same effect as adding a link rel="prerender" resource hint to a web page. It
* is implemented using NoStatePrefetch and fetches resources needed for a url in advance, but does
* not execute Javascript or render any part of the page in advance. For more information on
* NoStatePrefetch, see https://developers.google.com/web/updates/2018/07/nostate-prefetch.
*
* @since 88
*/
public class PrerenderController {
private final IPrerenderController mImpl;
static PrerenderController create(IProfile profile) {
try {
return new PrerenderController(profile.getPrerenderController());
} catch (RemoteException e) {
throw new APICallException(e);
}
}
// Constructor for test mocking.
protected PrerenderController() {
mImpl = null;
}
PrerenderController(IPrerenderController prerenderController) {
mImpl = prerenderController;
}
/*
* Creates a prerender for the url provided.
* Prerendering here is implemented using NoStatePrefetch. We fetch resources and save them
* to the HTTP cache. All resources are cached according to their cache headers. For details,
* see https://developers.google.com/web/updates/2018/07/nostate-prefetch#implementation.
*
* On low end devices or when the device has too many renderers running and prerender is
* considered expensive, we do preconnect instead. Preconnect involves creating connections with
* the server without actually fetching any resources. For more information on preconnect, see
* https://www.chromium.org/developers/design-documents/network-stack/preconnect.
* @param uri The uri to prerender.
*/
public void schedulePrerender(@NonNull Uri uri) {
ThreadCheck.ensureOnUiThread();
try {
mImpl.prerender(uri.toString());
} catch (RemoteException exception) {
throw new APICallException(exception);
}
}
}
weblayer/public/java/org/chromium/weblayer/Profile.java
View file @ 1a0ff235
......@@ -66,18 +66,25 @@ public class Profile {
private IProfile mImpl;
private DownloadCallbackClientImpl mDownloadCallbackClient;
private final CookieManager mCookieManager;
private final PrerenderController mPrerenderController;
// Constructor for test mocking.
protected Profile() {
mName = null;
mImpl = null;
mCookieManager = null;
mPrerenderController = null;
}
private Profile(String name, IProfile impl) {
mName = name;
mImpl = impl;
mCookieManager = CookieManager.create(impl);
if (WebLayer.getSupportedMajorVersionInternal() >= 88) {
mPrerenderController = PrerenderController.create(impl);
} else {
mPrerenderController = null;
}
sProfiles.put(name, this);
}
......@@ -198,6 +205,21 @@ public class Profile {
return mCookieManager;
}
/**
* Gets the prerender controller for this profile.
*
* @since 88
*/
@NonNull
public PrerenderController getPrerenderController() {
if (WebLayer.getSupportedMajorVersionInternal() < 88) {
throw new UnsupportedOperationException();
}
ThreadCheck.ensureOnUiThread();
return mPrerenderController;
}
/**
* Allows the embedder to set a boolean value for a specific setting, see {@link SettingType}
* for more details and the possible options.
......
weblayer/public/prerender_controller.h 0 → 100644
View file @ 1a0ff235
// Copyright 2020 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.
#ifndef WEBLAYER_PUBLIC_PRERENDER_CONTROLLER_H_
#define WEBLAYER_PUBLIC_PRERENDER_CONTROLLER_H_
#include <string>
class GURL;
namespace weblayer {
// PrerenderController enables prerendering of urls.
// Prerendering has the same effect as adding a link rel="prerender" resource
// hint to a web page. It is implemented using NoStatePrefetch and fetches
// resources needed for a url in advance, but does not execute Javascript or
// render any part of the page in advance. For more information on
// NoStatePrefetch, see
// https://developers.google.com/web/updates/2018/07/nostate-prefetch.
class PrerenderController {
public:
virtual void Prerender(const GURL& url) = 0;
protected:
virtual ~PrerenderController() = default;
};
} // namespace weblayer
#endif // WEBLAYER_PUBLIC_PRERENDER_CONTROLLER_H_
weblayer/public/profile.h
View file @ 1a0ff235
......@@ -25,6 +25,7 @@ class GURL;
namespace weblayer {
class CookieManager;
class DownloadDelegate;
class PrerenderController;
// GENERATED_JAVA_ENUM_PACKAGE: org.chromium.weblayer_private
// GENERATED_JAVA_CLASS_NAME_OVERRIDE: ImplBrowsingDataType
......@@ -77,6 +78,9 @@ class Profile {
// Gets the cookie manager for this profile.
virtual CookieManager* GetCookieManager() = 0;
// Gets the prerender controller for this profile.
virtual PrerenderController* GetPrerenderController() = 0;
// Asynchronously fetches the set of known Browser persistence-ids. See
// Browser::PersistenceInfo for more details on persistence-ids.
virtual void GetBrowserPersistenceIds(
......
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