Test distillability without JavaScript

components/dom_distiller/content/browser/distillability_driver.cc

+// Copyright 2015 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 "components/dom_distiller/content/browser/distillability_driver.h"
+#include "components/dom_distiller/content/common/distiller_messages.h"
+
+#include "content/public/browser/render_frame_host.h"
+#include "content/public/browser/web_contents_observer.h"
+#include "content/public/browser/web_contents_user_data.h"
+
+DEFINE_WEB_CONTENTS_USER_DATA_KEY(
+    dom_distiller::WebContentsDistillabilityDriver);
+
+namespace dom_distiller {
+
+WebContentsDistillabilityDriver::WebContentsDistillabilityDriver(
+    content::WebContents* web_contents)
+    : content::WebContentsObserver(web_contents) {
+}
+
+WebContentsDistillabilityDriver::~WebContentsDistillabilityDriver() {
+  CleanUp();
+}
+
+void WebContentsDistillabilityDriver::SetCallback(
+    const base::Callback<void(bool, bool)>& callback) {
+  LOG(ERROR) << "ReaderMode WebContentsDistillabilityDriver::SetCallback "
+      << &callback;
+  m_callback_ = callback;
+}
+
+bool WebContentsDistillabilityDriver::OnMessageReceived(const IPC::Message &msg,
+    content::RenderFrameHost* render_frame_host) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(WebContentsDistillabilityDriver, msg)
+    IPC_MESSAGE_HANDLER(FrameHostMsg_Distillability,
+                        OnDistillability)
+  IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
+void WebContentsDistillabilityDriver::OnDistillability(
+    bool distillable, bool is_last) {
+  LOG(ERROR) << "ReaderMode WebContentsDistillabilityDriver::OnDistillability "
+      << distillable << " " << is_last;
+  LOG(ERROR) << "ReaderMode m_callback_.is_null = " << m_callback_.is_null();
+  if (m_callback_.is_null()) return;
+
+  m_callback_.Run(distillable, is_last);
+  if (is_last) {
+    m_callback_ = base::Callback<void(bool, bool)>();
+  }
+}
+
+void WebContentsDistillabilityDriver::RenderProcessGone(
+    base::TerminationStatus status) {
+  CleanUp();
+}
+
+void WebContentsDistillabilityDriver::CleanUp() {
+  content::WebContentsObserver::Observe(NULL);
+}
+
+}  // namespace dom_distiller