blob: 46935eaad124c4c85dde59dba8be6b59e84df41b [file] [log] [blame]
// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "android_webview/browser/icon_helper.h"
#include "base/check_op.h"
#include "base/containers/contains.h"
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/hash/hash.h"
#include "base/notreached.h"
#include "components/favicon_base/select_favicon_frames.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/navigation_handle.h"
#include "content/public/browser/web_contents.h"
#include "third_party/blink/public/mojom/favicon/favicon_url.mojom.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/gfx/geometry/size.h"
using content::BrowserThread;
using content::WebContents;
namespace android_webview {
namespace {
const int kLargestIconSize = 192;
} // namespace
IconHelper::IconHelper(WebContents* web_contents)
: WebContentsObserver(web_contents),
listener_(nullptr),
missing_favicon_urls_() {}
IconHelper::~IconHelper() {
}
void IconHelper::SetListener(Listener* listener) {
listener_ = listener;
}
void IconHelper::DownloadFaviconCallback(
int id,
int http_status_code,
const GURL& image_url,
const std::vector<SkBitmap>& bitmaps,
const std::vector<gfx::Size>& original_bitmap_sizes) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (http_status_code == 404) {
MarkUnableToDownloadFavicon(image_url);
return;
}
if (bitmaps.size() == 0) {
return;
}
// We can protentially have multiple frames of the icon
// in different sizes. We need more fine grain API spec
// to let clients pick out the frame they want.
if (listener_) {
std::vector<size_t> best_indices;
SelectFaviconFrameIndices(original_bitmap_sizes,
std::vector<int>(1U, kLargestIconSize),
&best_indices, nullptr);
listener_->OnReceivedIcon(
image_url,
bitmaps[best_indices.size() == 0 ? 0 : best_indices.front()]);
}
}
void IconHelper::DidUpdateFaviconURL(
content::RenderFrameHost* render_frame_host,
const std::vector<blink::mojom::FaviconURLPtr>& candidates) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
for (const auto& candidate : candidates) {
if (!candidate->icon_url.is_valid())
continue;
switch (candidate->icon_type) {
case blink::mojom::FaviconIconType::kFavicon:
if ((listener_ &&
!listener_->ShouldDownloadFavicon(candidate->icon_url)) ||
WasUnableToDownloadFavicon(candidate->icon_url)) {
break;
}
web_contents()->DownloadImage(
candidate->icon_url,
true, // Is a favicon
gfx::Size(), // No preferred size
kLargestIconSize, // Max bitmap size
false, // Normal cache policy
base::BindOnce(&IconHelper::DownloadFaviconCallback,
base::Unretained(this)));
break;
case blink::mojom::FaviconIconType::kTouchIcon:
if (listener_)
listener_->OnReceivedTouchIconUrl(candidate->icon_url.spec(), false);
break;
case blink::mojom::FaviconIconType::kTouchPrecomposedIcon:
if (listener_)
listener_->OnReceivedTouchIconUrl(candidate->icon_url.spec(), true);
break;
case blink::mojom::FaviconIconType::kInvalid:
// Silently ignore it. Only trigger a callback on valid icons.
break;
default:
NOTREACHED();
break;
}
}
}
void IconHelper::DidStartNavigation(content::NavigationHandle* navigation) {
if (navigation->IsInPrimaryMainFrame() &&
navigation->GetReloadType() == content::ReloadType::BYPASSING_CACHE) {
ClearUnableToDownloadFavicons();
}
}
void IconHelper::MarkUnableToDownloadFavicon(const GURL& icon_url) {
MissingFaviconURLHash url_hash = base::FastHash(icon_url.spec());
missing_favicon_urls_.insert(url_hash);
}
bool IconHelper::WasUnableToDownloadFavicon(const GURL& icon_url) const {
MissingFaviconURLHash url_hash = base::FastHash(icon_url.spec());
return base::Contains(missing_favicon_urls_, url_hash);
}
void IconHelper::ClearUnableToDownloadFavicons() {
missing_favicon_urls_.clear();
}
} // namespace android_webview