chrome/browser/android/preloading/android_prerender_manager.cc

// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/android/preloading/android_prerender_manager.h"

#include "base/android/jni_string.h"
#include "base/check.h"
#include "base/notreached.h"
#include "chrome/browser/android/tab_android.h"
#include "chrome/browser/predictors/loading_predictor.h"
#include "chrome/browser/predictors/loading_predictor_factory.h"
#include "chrome/browser/preloading/chrome_preloading.h"
#include "chrome/browser/preloading/prerender/prerender_manager.h"
#include "chrome/browser/preloading/prerender/prerender_utils.h"
#include "chrome/browser/profiles/profile.h"
#include "content/public/browser/web_contents.h"
#include "url/gurl.h"

// Must come after other includes, because FromJniType() uses Profile.
#include "chrome/browser/ui/android/preloading/jni_headers/AndroidPrerenderManager_jni.h"

using base::android::JavaParamRef;

AndroidPrerenderManager::AndroidPrerenderManager(JNIEnv* env) {}

AndroidPrerenderManager::~AndroidPrerenderManager() = default;

// static
jlong JNI_AndroidPrerenderManager_Init(JNIEnv* env) {
  return reinterpret_cast<intptr_t>(new AndroidPrerenderManager(env));
}

void AndroidPrerenderManager::StartPrerendering(
    JNIEnv* env,
    const GURL& prerender_url,
    const base::android::JavaParamRef<jobject>& j_web_contents) {
  content::WebContents* const web_contents =
      content::WebContents::FromJavaWebContents(j_web_contents);
  NewTabPagePreloadPipelineManager::GetOrCreateForWebContents(web_contents)
      ->StartPrerender(prerender_url,
                       chrome_preloading_predictor::kTouchOnNewTabPage);
}

void AndroidPrerenderManager::StopPrerendering(
    JNIEnv* env,
    const base::android::JavaParamRef<jobject>& j_web_contents) {
  content::WebContents* const web_contents =
      content::WebContents::FromJavaWebContents(j_web_contents);
  NewTabPagePreloadPipelineManager::GetOrCreateForWebContents(web_contents)
      ->ResetPrerender();
}