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// Copyright 2019 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/tab_favicon.h"
#include "components/favicon/content/content_favicon_driver.h"
#include "content/public/browser/back_forward_transition_animation_manager.h"
#include "content/public/browser/web_contents.h"
#include "skia/ext/image_operations.h"
#include "third_party/blink/public/common/features_generated.h"
#include "ui/display/display.h"
#include "ui/display/screen.h"
#include "ui/gfx/android/java_bitmap.h"
#include "ui/gfx/favicon_size.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/gfx/image/image_skia_rep.h"
#include "url/android/gurl_android.h"
// Must come after all headers that specialize FromJniType() / ToJniType().
#include "chrome/android/chrome_jni_headers/TabFavicon_jni.h"
namespace {
using base::android::JavaParamRef;
using base::android::ScopedJavaLocalRef;
SkBitmap RescaleSkBitmap(const SkBitmap& original, int new_size_dip) {
SkImageInfo scaledInfo = original.info().makeWH(new_size_dip, new_size_dip);
SkBitmap resized;
resized.allocPixels(scaledInfo);
bool success = original.pixmap().scalePixels(
resized.pixmap(), SkSamplingOptions(SkFilterMode::kLinear));
CHECK(success);
resized.setImmutable();
return resized;
}
} // namespace
TabFavicon::TabFavicon(JNIEnv* env,
const JavaParamRef<jobject>& obj,
int navigation_transition_favicon_size)
: navigation_transition_favicon_size_(navigation_transition_favicon_size),
jobj_(env, obj) {}
TabFavicon::~TabFavicon() = default;
void TabFavicon::SetWebContents(JNIEnv* env,
const JavaParamRef<jobject>& obj,
const JavaParamRef<jobject>& jweb_contents) {
active_web_contents_ =
content::WebContents::FromJavaWebContents(jweb_contents);
favicon_driver_ =
favicon::ContentFaviconDriver::FromWebContents(active_web_contents_);
if (favicon_driver_)
favicon_driver_->AddObserver(this);
}
void TabFavicon::ResetWebContents(JNIEnv* env,
const JavaParamRef<jobject>& obj) {
active_web_contents_ = nullptr;
if (favicon_driver_) {
favicon_driver_->RemoveObserver(this);
favicon_driver_ = nullptr;
}
}
void TabFavicon::OnDestroyed(JNIEnv* env, const JavaParamRef<jobject>& obj) {
delete this;
}
ScopedJavaLocalRef<jobject> TabFavicon::GetFavicon(
JNIEnv* env,
const JavaParamRef<jobject>& obj) {
ScopedJavaLocalRef<jobject> bitmap;
if (!favicon_driver_ || !favicon_driver_->FaviconIsValid()) {
return bitmap;
}
// Always return the default favicon in Android.
SkBitmap favicon = favicon_driver_->GetFavicon().AsBitmap();
if (!favicon.empty()) {
const float device_scale_factor =
display::Screen::GetScreen()->GetPrimaryDisplay().device_scale_factor();
int target_size_dip = device_scale_factor * gfx::kFaviconSize;
if (favicon.width() != target_size_dip ||
favicon.height() != target_size_dip) {
favicon = skia::ImageOperations::Resize(
favicon, skia::ImageOperations::RESIZE_BEST, target_size_dip,
target_size_dip);
}
bitmap = gfx::ConvertToJavaBitmap(favicon);
}
return bitmap;
}
void TabFavicon::OnFaviconUpdated(favicon::FaviconDriver* favicon_driver,
NotificationIconType notification_icon_type,
const GURL& icon_url,
bool icon_url_changed,
const gfx::Image& image) {
if (notification_icon_type != NON_TOUCH_LARGEST &&
notification_icon_type != TOUCH_LARGEST) {
return;
}
SkBitmap favicon = image.AsImageSkia().GetRepresentation(1.0f).GetBitmap();
if (favicon.empty())
return;
JNIEnv* env = base::android::AttachCurrentThread();
auto new_width = image.Width();
auto new_height = image.Height();
if (static_cast<bool>(Java_TabFavicon_shouldUpdateFaviconForBrowserUi(
env, jobj_, new_width, new_height))) {
ScopedJavaLocalRef<jobject> j_icon_url =
url::GURLAndroid::FromNativeGURL(env, icon_url);
Java_TabFavicon_onFaviconAvailable(
env, jobj_, gfx::ConvertToJavaBitmap(favicon), j_icon_url);
}
if (base::FeatureList::IsEnabled(blink::features::kBackForwardTransitions)) {
CHECK(active_web_contents_);
if (static_cast<bool>(
Java_TabFavicon_shouldUpdateFaviconForNavigationTransitions(
env, jobj_, new_width, new_height))) {
SkBitmap scaled =
RescaleSkBitmap(favicon, navigation_transition_favicon_size_);
auto* manager =
active_web_contents_->GetBackForwardTransitionAnimationManager();
CHECK(manager);
manager->SetFavicon(std::move(scaled));
}
}
}
static jlong JNI_TabFavicon_Init(JNIEnv* env,
const JavaParamRef<jobject>& obj,
int navigation_transition_favicon_size) {
return reinterpret_cast<intptr_t>(
new TabFavicon(env, obj, navigation_transition_favicon_size));
}
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