root/content/browser/android/web_contents_observer_android.cc

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DEFINITIONS

This source file includes following definitions.
  1. weak_java_observer_
  2. Init
  3. Destroy
  4. WebContentsDestroyed
  5. RenderProcessGone
  6. DidStartLoading
  7. DidStopLoading
  8. DidFailProvisionalLoad
  9. DidFailLoad
  10. DidNavigateMainFrame
  11. DidNavigateAnyFrame
  12. DidStartProvisionalLoadForFrame
  13. DidCommitProvisionalLoadForFrame
  14. DidFinishLoad
  15. NavigationEntryCommitted
  16. DidChangeVisibleSSLState
  17. DidAttachInterstitialPage
  18. DidDetachInterstitialPage
  19. DidFailLoadInternal
  20. DidFirstVisuallyNonEmptyPaint
  21. RegisterWebContentsObserverAndroid
// Copyright (c) 2012 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 "content/browser/android/web_contents_observer_android.h"

#include <string>

#include <jni.h>

#include "base/android/jni_android.h"
#include "base/android/jni_string.h"
#include "base/android/scoped_java_ref.h"
#include "content/browser/android/content_view_core_impl.h"
#include "content/browser/renderer_host/render_widget_host_impl.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/public/browser/navigation_details.h"
#include "content/public/browser/navigation_entry.h"
#include "jni/WebContentsObserverAndroid_jni.h"

using base::android::AttachCurrentThread;
using base::android::ScopedJavaLocalRef;
using base::android::ConvertUTF8ToJavaString;
using base::android::ConvertUTF16ToJavaString;

namespace content {

WebContentsObserverAndroid::WebContentsObserverAndroid(
    JNIEnv* env,
    jobject obj,
    WebContents* web_contents)
    : WebContentsObserver(web_contents),
      weak_java_observer_(env, obj){
}

WebContentsObserverAndroid::~WebContentsObserverAndroid() {
}

jlong Init(JNIEnv* env, jobject obj, jlong native_content_view_core) {
  ContentViewCore* content_view_core =
      reinterpret_cast<ContentViewCore*>(native_content_view_core);
  WebContentsObserverAndroid* native_observer = new WebContentsObserverAndroid(
      env, obj, content_view_core->GetWebContents());
  return reinterpret_cast<intptr_t>(native_observer);
}

void WebContentsObserverAndroid::Destroy(JNIEnv* env, jobject obj) {
  delete this;
}

void WebContentsObserverAndroid::WebContentsDestroyed(
    WebContents* web_contents) {
  JNIEnv* env = AttachCurrentThread();
  ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
  if (obj.is_null()) {
    delete this;
  } else {
    // The java side will destroy |this|
    Java_WebContentsObserverAndroid_detachFromWebContents(env, obj.obj());
  }
}

void WebContentsObserverAndroid::RenderProcessGone(
    base::TerminationStatus termination_status) {
  JNIEnv* env = AttachCurrentThread();
  ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
  if (obj.is_null())
    return;
  jboolean was_oom_protected =
      termination_status == base::TERMINATION_STATUS_OOM_PROTECTED;
  Java_WebContentsObserverAndroid_renderProcessGone(
      env, obj.obj(), was_oom_protected);
}

void WebContentsObserverAndroid::DidStartLoading(
    RenderViewHost* render_view_host) {
  JNIEnv* env = AttachCurrentThread();
  ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
  if (obj.is_null())
    return;
  ScopedJavaLocalRef<jstring> jstring_url(ConvertUTF8ToJavaString(
      env, web_contents()->GetVisibleURL().spec()));
  Java_WebContentsObserverAndroid_didStartLoading(
      env, obj.obj(), jstring_url.obj());
}

void WebContentsObserverAndroid::DidStopLoading(
    RenderViewHost* render_view_host) {
  JNIEnv* env = AttachCurrentThread();
  ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
  if (obj.is_null())
    return;
  ScopedJavaLocalRef<jstring> jstring_url(ConvertUTF8ToJavaString(
      env, web_contents()->GetLastCommittedURL().spec()));
  Java_WebContentsObserverAndroid_didStopLoading(
      env, obj.obj(), jstring_url.obj());
}

void WebContentsObserverAndroid::DidFailProvisionalLoad(
    int64 frame_id,
    const base::string16& frame_unique_name,
    bool is_main_frame,
    const GURL& validated_url,
    int error_code,
    const base::string16& error_description,
    RenderViewHost* render_view_host) {
  DidFailLoadInternal(
        true, is_main_frame, error_code, error_description, validated_url);
}

void WebContentsObserverAndroid::DidFailLoad(
    int64 frame_id,
    const GURL& validated_url,
    bool is_main_frame,
    int error_code,
    const base::string16& error_description,
    RenderViewHost* render_view_host) {
  DidFailLoadInternal(
        false, is_main_frame, error_code, error_description, validated_url);
}

void WebContentsObserverAndroid::DidNavigateMainFrame(
    const LoadCommittedDetails& details,
    const FrameNavigateParams& params) {
  JNIEnv* env = AttachCurrentThread();
  ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
  if (obj.is_null())
    return;
  ScopedJavaLocalRef<jstring> jstring_url(
      ConvertUTF8ToJavaString(env, params.url.spec()));
  ScopedJavaLocalRef<jstring> jstring_base_url(
      ConvertUTF8ToJavaString(env, params.base_url.spec()));
  // See http://crbug.com/251330 for why it's determined this way.
  bool in_page_navigation =
      details.type == NAVIGATION_TYPE_IN_PAGE || details.is_in_page;
  // TODO(mkosiba): delete once downstream rolls.
  Java_WebContentsObserverAndroid_didNavigateMainFrameV_JLS_JLS_Z(
      env, obj.obj(), jstring_url.obj(), jstring_base_url.obj(),
      details.is_navigation_to_different_page());
  Java_WebContentsObserverAndroid_didNavigateMainFrameV_JLS_JLS_Z_Z(
      env, obj.obj(), jstring_url.obj(), jstring_base_url.obj(),
      details.is_navigation_to_different_page(), in_page_navigation);
}

void WebContentsObserverAndroid::DidNavigateAnyFrame(
    const LoadCommittedDetails& details,
    const FrameNavigateParams& params) {
  JNIEnv* env = AttachCurrentThread();
  ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
  if (obj.is_null())
    return;
  ScopedJavaLocalRef<jstring> jstring_url(
      ConvertUTF8ToJavaString(env, params.url.spec()));
  ScopedJavaLocalRef<jstring> jstring_base_url(
      ConvertUTF8ToJavaString(env, params.base_url.spec()));
  jboolean jboolean_is_reload =
      PageTransitionCoreTypeIs(params.transition, PAGE_TRANSITION_RELOAD);

  Java_WebContentsObserverAndroid_didNavigateAnyFrame(
      env, obj.obj(), jstring_url.obj(), jstring_base_url.obj(),
      jboolean_is_reload);
}

void WebContentsObserverAndroid::DidStartProvisionalLoadForFrame(
      int64 frame_id,
      int64 parent_frame_id,
      bool is_main_frame,
      const GURL& validated_url,
      bool is_error_page,
      bool is_iframe_srcdoc,
      RenderViewHost* render_view_host) {
  JNIEnv* env = AttachCurrentThread();
  ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
  if (obj.is_null())
    return;
  ScopedJavaLocalRef<jstring> jstring_url(
      ConvertUTF8ToJavaString(env, validated_url.spec()));
  Java_WebContentsObserverAndroid_didStartProvisionalLoadForFrame(
      env, obj.obj(), frame_id, parent_frame_id, is_main_frame,
      jstring_url.obj(), is_error_page, is_iframe_srcdoc);
}

void WebContentsObserverAndroid::DidCommitProvisionalLoadForFrame(
      int64 frame_id,
      const base::string16& frame_unique_name,
      bool is_main_frame,
      const GURL& url,
      PageTransition transition_type,
      RenderViewHost* render_view_host) {
  JNIEnv* env = AttachCurrentThread();
  ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
  if (obj.is_null())
    return;
  ScopedJavaLocalRef<jstring> jstring_url(
      ConvertUTF8ToJavaString(env, url.spec()));
  Java_WebContentsObserverAndroid_didCommitProvisionalLoadForFrame(
      env, obj.obj(), frame_id, is_main_frame, jstring_url.obj(),
      transition_type);
}

void WebContentsObserverAndroid::DidFinishLoad(
    int64 frame_id,
    const GURL& validated_url,
    bool is_main_frame,
    RenderViewHost* render_view_host) {
  JNIEnv* env = AttachCurrentThread();
  ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
  if (obj.is_null())
    return;

  std::string url_string = validated_url.spec();
  NavigationEntry* entry =
    web_contents()->GetController().GetLastCommittedEntry();
  // Note that GetBaseURLForDataURL is only used by the Android WebView.
  if (entry && !entry->GetBaseURLForDataURL().is_empty())
    url_string = entry->GetBaseURLForDataURL().possibly_invalid_spec();

  ScopedJavaLocalRef<jstring> jstring_url(
      ConvertUTF8ToJavaString(env, url_string));
  Java_WebContentsObserverAndroid_didFinishLoad(
      env, obj.obj(), frame_id, jstring_url.obj(), is_main_frame);
}

void WebContentsObserverAndroid::NavigationEntryCommitted(
    const LoadCommittedDetails& load_details) {
  JNIEnv* env = AttachCurrentThread();
  ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
  if (obj.is_null())
    return;
  Java_WebContentsObserverAndroid_navigationEntryCommitted(env, obj.obj());
}

void WebContentsObserverAndroid::DidChangeVisibleSSLState() {
  JNIEnv* env = AttachCurrentThread();
  ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
  if (obj.is_null())
    return;
  Java_WebContentsObserverAndroid_didChangeVisibleSSLState(env, obj.obj());
}

void WebContentsObserverAndroid::DidAttachInterstitialPage() {
  JNIEnv* env = AttachCurrentThread();
  ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
  if (obj.is_null())
    return;
  Java_WebContentsObserverAndroid_didAttachInterstitialPage(env, obj.obj());
}

void WebContentsObserverAndroid::DidDetachInterstitialPage() {
  JNIEnv* env = AttachCurrentThread();
  ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
  if (obj.is_null())
    return;
  Java_WebContentsObserverAndroid_didDetachInterstitialPage(env, obj.obj());
}

void WebContentsObserverAndroid::DidFailLoadInternal(
    bool is_provisional_load,
    bool is_main_frame,
    int error_code,
    const base::string16& description,
    const GURL& url) {
  JNIEnv* env = AttachCurrentThread();
  ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
  if (obj.is_null())
    return;
  ScopedJavaLocalRef<jstring> jstring_error_description(
      ConvertUTF16ToJavaString(env, description));
  ScopedJavaLocalRef<jstring> jstring_url(
      ConvertUTF8ToJavaString(env, url.spec()));

  Java_WebContentsObserverAndroid_didFailLoad(
      env, obj.obj(),
      is_provisional_load,
      is_main_frame,
      error_code,
      jstring_error_description.obj(), jstring_url.obj());
}

void WebContentsObserverAndroid::DidFirstVisuallyNonEmptyPaint(int32 page_id) {
  JNIEnv* env = AttachCurrentThread();
  ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
  if (obj.is_null())
    return;
  Java_WebContentsObserverAndroid_didFirstVisuallyNonEmptyPaint(
      env, obj.obj(), page_id);
}

bool RegisterWebContentsObserverAndroid(JNIEnv* env) {
  return RegisterNativesImpl(env);
}
}  // namespace content
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