Add FeedbackReporter for reporting distillation quality.

chrome/browser/android/dom_distiller/feedback_reporter_android.cc

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/android/dom_distiller/feedback_reporter_android.h"
+
+#include "base/android/jni_android.h"
+#include "base/android/jni_string.h"
+#include "base/command_line.h"
+#include "chrome/common/chrome_switches.h"
+#include "chrome/common/url_constants.h"
+#include "components/dom_distiller/core/feedback_reporter.h"
+#include "content/public/browser/navigation_details.h"
+#include "content/public/browser/navigation_entry.h"
+#include "content/public/browser/web_contents_observer.h"
+#include "content/public/common/frame_navigate_params.h"
+#include "jni/FeedbackReporter_jni.h"
+#include "url/gurl.h"
+
+using base::android::ConvertJavaStringToUTF8;
+using base::android::ConvertUTF8ToJavaString;
+
+namespace dom_distiller {
+
+namespace android {
+
+// static
+jboolean IsEnabled(JNIEnv* env, jclass clazz) {
+  return CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kEnableDomDistiller);
+}
+
+// static
+void ReportQuality(JNIEnv* env, jclass clazz, jboolean j_good) {
+  FeedbackReporter::ReportQuality(j_good);
+}
+
+// static
+jboolean IsReportableUrl(JNIEnv* env, jclass clazz, jstring j_url_str) {
+  const std::string url_str = ConvertJavaStringToUTF8(env, j_url_str);
+  const GURL url(url_str);
+  if (!url.is_valid())
+    return false;
+  return url.scheme() == chrome::kDomDistillerScheme;
+}
+
+FeedbackReporterAndroid::FeedbackReporterAndroid(JNIEnv* env, jobject obj)
+    : weak_java_feedback_reporter_(env, obj) {}
+
+FeedbackReporterAndroid::~FeedbackReporterAndroid() {}
+
+void FeedbackReporterAndroid::Destroy(JNIEnv* env, jobject obj) { delete this; }

[newt (away), 2014/03/17 18:19:19]

nit: "delete this" should probably go on a new line

[nyquist, 2014/03/17 20:13:42]

Not according to clang format. Keeping as is since it's a nit, and I usually
just follow clang format for simplicity :-) If I move it to a new line an re-run
clang it would just move up again.

+
+void FeedbackReporterAndroid::ReplaceWebContents(JNIEnv* env,
+                                                 jobject obj,
+                                                 jobject jweb_contents) {
+  content::WebContents* web_contents =
+      content::WebContents::FromJavaWebContents(jweb_contents);
+  Observe(web_contents);
+}
+
+void FeedbackReporterAndroid::DidNavigateMainFrame(
+    const content::LoadCommittedDetails& details,
+    const content::FrameNavigateParams& params) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  ScopedJavaLocalRef<jobject> jobj = weak_java_feedback_reporter_.get(env);
+  if (jobj.is_null())
+    return;
+  base::android::ScopedJavaLocalRef<jstring> j_current_overlay_url_str =
+      Java_FeedbackReporter_getCurrentOverlayUrl(env, jobj.obj());
+  std::string current_overlay_url_str =
+      ConvertJavaStringToUTF8(j_current_overlay_url_str);
+  GURL current_overlay_url(current_overlay_url_str);
+  GURL navigation_url = details.entry->GetURL();
+  if (!current_overlay_url.is_valid() || navigation_url != current_overlay_url)
+    Java_FeedbackReporter_dismissOverlay(env, jobj.obj());
+}
+
+jlong Init(JNIEnv* env, jobject obj) {
+  FeedbackReporterAndroid* reporter = new FeedbackReporterAndroid(env, obj);
+  return reinterpret_cast<intptr_t>(reporter);
+}
+
+// static
+bool RegisterFeedbackReporter(JNIEnv* env) { return RegisterNativesImpl(env); }
+
+}  // namespace android
+
+}  // namespace dom_distiller