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// Copyright 2025 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/preloading/bookmarkbar_preload/bookmarkbar_preload_pipeline_manager.h"
#include "chrome/browser/preloading/bookmarkbar_preload/bookmarkbar_preload_pipeline.h"
#include "chrome/browser/preloading/chrome_preloading.h"
#include "chrome/browser/profiles/profile.h"
#include "components/search_engines/template_url_service.h"
#include "content/public/browser/navigation_handle.h"
#include "content/public/browser/web_contents.h"
WEB_CONTENTS_USER_DATA_KEY_IMPL(BookmarkBarPreloadPipelineManager);
BookmarkBarPreloadPipelineManager::BookmarkBarPreloadPipelineManager(
content::WebContents* web_contents)
: content::WebContentsObserver(web_contents),
content::WebContentsUserData<BookmarkBarPreloadPipelineManager>(
*web_contents) {}
BookmarkBarPreloadPipelineManager::~BookmarkBarPreloadPipelineManager() =
default;
// static
BookmarkBarPreloadPipelineManager*
BookmarkBarPreloadPipelineManager::GetOrCreateForWebContents(
content::WebContents* web_contents) {
auto* bookmarkbar_preload_manager =
BookmarkBarPreloadPipelineManager::FromWebContents(web_contents);
if (!bookmarkbar_preload_manager) {
BookmarkBarPreloadPipelineManager::CreateForWebContents(web_contents);
bookmarkbar_preload_manager =
BookmarkBarPreloadPipelineManager::FromWebContents(web_contents);
}
return bookmarkbar_preload_manager;
}
void BookmarkBarPreloadPipelineManager::StartPrerender(const GURL& url) {
if (pipeline_) {
// TODO(https://crbug.com/413259638) Adds back the CHECK which checks `url
// == pipeline_->url()` when the investigation is done. Prerender is
// expected to be reset when mouseExit happens or every primary page
// changed, so if a pipeline is present, the url is expected to be the same.
// But the CHECK is causing https://crbug.com/425612820 unexpectedly, the
// CHECK is removed at the moment.
return;
}
pipeline_ = std::make_unique<BookmarkBarPreloadPipeline>(url);
if (!pipeline_->StartPrerender(
*web_contents(),
chrome_preloading_predictor::kMouseHoverOrMouseDownOnBookmarkBar)) {
pipeline_.reset();
}
}
void BookmarkBarPreloadPipelineManager::DidFinishNavigation(
content::NavigationHandle* navigation_handle) {
if (!navigation_handle->HasCommitted() ||
!navigation_handle->IsInPrimaryMainFrame() ||
navigation_handle->IsSameDocument()) {
return;
}
// This is a primary page change. Reset the preload pipeline.
pipeline_.reset();
}
void BookmarkBarPreloadPipelineManager::ResetPrerender() {
pipeline_.reset();
}
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