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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/functional/bind.h"
#include "base/location.h"
#include "base/task/single_thread_task_runner.h"
#include "components/dom_distiller/content/browser/distillable_page_utils.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_contents_user_data.h"
// Must come after all headers that specialize FromJniType() / ToJniType().
#include "components/dom_distiller/content/browser/android/jni_headers/DistillablePageUtils_jni.h"
using base::android::JavaParamRef;
using base::android::JavaRef;
using base::android::ScopedJavaGlobalRef;
namespace dom_distiller {
namespace android {
namespace {
class JniDistillabilityObserverWrapper
: public DistillabilityObserver,
public content::WebContentsUserData<JniDistillabilityObserverWrapper> {
public:
JniDistillabilityObserverWrapper(const JniDistillabilityObserverWrapper&) =
delete;
JniDistillabilityObserverWrapper& operator=(
const JniDistillabilityObserverWrapper&) = delete;
void SetCallback(JNIEnv* env, const JavaParamRef<jobject>& callback) {
callback_ = ScopedJavaGlobalRef<jobject>(env, callback);
}
void OnResult(const DistillabilityResult& result) override {
Java_DistillablePageUtils_callOnIsPageDistillableUpdate(
base::android::AttachCurrentThread(), callback_, result.is_distillable,
result.is_last, result.is_long_article, result.is_mobile_friendly);
}
private:
explicit JniDistillabilityObserverWrapper(content::WebContents* contents)
: content::WebContentsUserData<JniDistillabilityObserverWrapper>(
*contents) {}
friend class content::WebContentsUserData<JniDistillabilityObserverWrapper>;
WEB_CONTENTS_USER_DATA_KEY_DECL();
ScopedJavaGlobalRef<jobject> callback_;
};
} // namespace
static void JNI_DistillablePageUtils_SetDelegate(
JNIEnv* env,
const JavaParamRef<jobject>& webContents,
const JavaParamRef<jobject>& callback) {
content::WebContents* web_contents(
content::WebContents::FromJavaWebContents(webContents));
if (!web_contents) {
return;
}
JniDistillabilityObserverWrapper::CreateForWebContents(web_contents);
auto* observer =
JniDistillabilityObserverWrapper::FromWebContents(web_contents);
DCHECK(observer);
observer->SetCallback(env, callback);
AddObserver(web_contents, observer);
}
WEB_CONTENTS_USER_DATA_KEY_IMPL(JniDistillabilityObserverWrapper);
} // namespace android
} // namespace dom_distiller
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