content/browser/android/web_contents_observer_android.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/browser/android/web_contents_observer_android.h"
   6
   7 #include <string>
   8
   9 #include <jni.h>
  10
  11 #include "base/android/jni_android.h"
  12 #include "base/android/jni_string.h"
  13 #include "base/android/scoped_java_ref.h"
  14 #include "content/browser/renderer_host/render_widget_host_impl.h"
  15 #include "content/browser/web_contents/web_contents_impl.h"
  16 #include "content/public/browser/navigation_details.h"
  17 #include "content/public/browser/navigation_entry.h"
  18 #include "jni/WebContentsObserverAndroid_jni.h"
  19
  20 using base::android::AttachCurrentThread;
  21 using base::android::ScopedJavaLocalRef;
  22 using base::android::ConvertUTF8ToJavaString;
  23 using base::android::ConvertUTF16ToJavaString;
  24
  25 namespace content {
  26
  27 // TODO(dcheng): File a bug. This class incorrectly passes just a frame ID,
  28 // which is not sufficient to identify a frame (since frame IDs are scoped per
  29 // render process, and so may collide).
  30 WebContentsObserverAndroid::WebContentsObserverAndroid(
  31     JNIEnv* env,
  32     jobject obj,
  33     WebContents* web_contents)
  34     : WebContentsObserver(web_contents),
  35       weak_java_observer_(env, obj){
  36 }
  37
  38 WebContentsObserverAndroid::~WebContentsObserverAndroid() {
  39 }
  40
  41 jlong Init(JNIEnv* env, jobject obj, jobject java_web_contents) {
  42   WebContents* web_contents =
  43       WebContents::FromJavaWebContents(java_web_contents);
  44   CHECK(web_contents);
  45
  46   WebContentsObserverAndroid* native_observer = new WebContentsObserverAndroid(
  47       env, obj, web_contents);
  48   return reinterpret_cast<intptr_t>(native_observer);
  49 }
  50
  51 void WebContentsObserverAndroid::Destroy(JNIEnv* env, jobject obj) {
  52   delete this;
  53 }
  54
  55 void WebContentsObserverAndroid::WebContentsDestroyed() {
  56   JNIEnv* env = AttachCurrentThread();
  57   ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
  58   if (obj.is_null()) {
  59     delete this;
  60   } else {
  61     // The java side will destroy |this|
  62     Java_WebContentsObserverAndroid_detachFromWebContents(env, obj.obj());
  63   }
  64 }
  65
  66 void WebContentsObserverAndroid::RenderProcessGone(
  67     base::TerminationStatus termination_status) {
  68   JNIEnv* env = AttachCurrentThread();
  69   ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
  70   if (obj.is_null())
  71     return;
  72   jboolean was_oom_protected =
  73       termination_status == base::TERMINATION_STATUS_OOM_PROTECTED;
  74   Java_WebContentsObserverAndroid_renderProcessGone(
  75       env, obj.obj(), was_oom_protected);
  76 }
  77
  78 void WebContentsObserverAndroid::DidStartLoading(
  79     RenderViewHost* render_view_host) {
  80   JNIEnv* env = AttachCurrentThread();
  81   ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
  82   if (obj.is_null())
  83     return;
  84   ScopedJavaLocalRef<jstring> jstring_url(ConvertUTF8ToJavaString(
  85       env, web_contents()->GetVisibleURL().spec()));
  86   Java_WebContentsObserverAndroid_didStartLoading(
  87       env, obj.obj(), jstring_url.obj());
  88 }
  89
  90 void WebContentsObserverAndroid::DidStopLoading(
  91     RenderViewHost* render_view_host) {
  92   JNIEnv* env = AttachCurrentThread();
  93   ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
  94   if (obj.is_null())
  95     return;
  96   ScopedJavaLocalRef<jstring> jstring_url(ConvertUTF8ToJavaString(
  97       env, web_contents()->GetLastCommittedURL().spec()));
  98   Java_WebContentsObserverAndroid_didStopLoading(
  99       env, obj.obj(), jstring_url.obj());
 100 }
 101
 102 void WebContentsObserverAndroid::DidFailProvisionalLoad(
 103     RenderFrameHost* render_frame_host,
 104     const GURL& validated_url,
 105     int error_code,
 106     const base::string16& error_description) {
 107   DidFailLoadInternal(true,
 108                       !render_frame_host->GetParent(),
 109                       error_code,
 110                       error_description,
 111                       validated_url);
 112 }
 113
 114 void WebContentsObserverAndroid::DidFailLoad(
 115     RenderFrameHost* render_frame_host,
 116     const GURL& validated_url,
 117     int error_code,
 118     const base::string16& error_description) {
 119   DidFailLoadInternal(false,
 120                       !render_frame_host->GetParent(),
 121                       error_code,
 122                       error_description,
 123                       validated_url);
 124 }
 125
 126 void WebContentsObserverAndroid::DidNavigateMainFrame(
 127     const LoadCommittedDetails& details,
 128     const FrameNavigateParams& params) {
 129   JNIEnv* env = AttachCurrentThread();
 130   ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
 131   if (obj.is_null())
 132     return;
 133   ScopedJavaLocalRef<jstring> jstring_url(
 134       ConvertUTF8ToJavaString(env, params.url.spec()));
 135   ScopedJavaLocalRef<jstring> jstring_base_url(
 136       ConvertUTF8ToJavaString(env, params.base_url.spec()));
 137
 138   // See http://crbug.com/251330 for why it's determined this way.
 139   url::Replacements<char> replacements;
 140   replacements.ClearRef();
 141   bool urls_same_ignoring_fragment =
 142       params.url.ReplaceComponents(replacements) ==
 143       details.previous_url.ReplaceComponents(replacements);
 144
 145   // is_fragment_navigation is indicative of the intent of this variable.
 146   // However, there isn't sufficient information here to determine whether this
 147   // is actually a fragment navigation, or a history API navigation to a URL
 148   // that would also be valid for a fragment navigation.
 149   bool is_fragment_navigation = urls_same_ignoring_fragment &&
 150       (details.type == NAVIGATION_TYPE_IN_PAGE || details.is_in_page);
 151   Java_WebContentsObserverAndroid_didNavigateMainFrame(
 152       env, obj.obj(), jstring_url.obj(), jstring_base_url.obj(),
 153       details.is_navigation_to_different_page(), is_fragment_navigation);
 154 }
 155
 156 void WebContentsObserverAndroid::DidNavigateAnyFrame(
 157     const LoadCommittedDetails& details,
 158     const FrameNavigateParams& params) {
 159   JNIEnv* env = AttachCurrentThread();
 160   ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
 161   if (obj.is_null())
 162     return;
 163   ScopedJavaLocalRef<jstring> jstring_url(
 164       ConvertUTF8ToJavaString(env, params.url.spec()));
 165   ScopedJavaLocalRef<jstring> jstring_base_url(
 166       ConvertUTF8ToJavaString(env, params.base_url.spec()));
 167   jboolean jboolean_is_reload =
 168       PageTransitionCoreTypeIs(params.transition, PAGE_TRANSITION_RELOAD);
 169
 170   Java_WebContentsObserverAndroid_didNavigateAnyFrame(
 171       env, obj.obj(), jstring_url.obj(), jstring_base_url.obj(),
 172       jboolean_is_reload);
 173 }
 174
 175 void WebContentsObserverAndroid::DidStartProvisionalLoadForFrame(
 176     RenderFrameHost* render_frame_host,
 177     const GURL& validated_url,
 178     bool is_error_page,
 179     bool is_iframe_srcdoc) {
 180   JNIEnv* env = AttachCurrentThread();
 181   ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
 182   if (obj.is_null())
 183     return;
 184   ScopedJavaLocalRef<jstring> jstring_url(
 185       ConvertUTF8ToJavaString(env, validated_url.spec()));
 186   // TODO(dcheng): Does Java really need the parent frame ID? It doesn't appear
 187   // to be used at all, and it just adds complexity here.
 188   Java_WebContentsObserverAndroid_didStartProvisionalLoadForFrame(
 189       env,
 190       obj.obj(),
 191       render_frame_host->GetRoutingID(),
 192       render_frame_host->GetParent()
 193           ? render_frame_host->GetParent()->GetRoutingID()
 194           : -1,
 195       !render_frame_host->GetParent(),
 196       jstring_url.obj(),
 197       is_error_page,
 198       is_iframe_srcdoc);
 199 }
 200
 201 void WebContentsObserverAndroid::DidCommitProvisionalLoadForFrame(
 202     RenderFrameHost* render_frame_host,
 203     const GURL& url,
 204     PageTransition transition_type) {
 205   JNIEnv* env = AttachCurrentThread();
 206   ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
 207   if (obj.is_null())
 208     return;
 209   ScopedJavaLocalRef<jstring> jstring_url(
 210       ConvertUTF8ToJavaString(env, url.spec()));
 211   Java_WebContentsObserverAndroid_didCommitProvisionalLoadForFrame(
 212       env,
 213       obj.obj(),
 214       render_frame_host->GetRoutingID(),
 215       !render_frame_host->GetParent(),
 216       jstring_url.obj(),
 217       transition_type);
 218 }
 219
 220 void WebContentsObserverAndroid::DidFinishLoad(
 221     RenderFrameHost* render_frame_host,
 222     const GURL& validated_url) {
 223   JNIEnv* env = AttachCurrentThread();
 224   ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
 225   if (obj.is_null())
 226     return;
 227
 228   std::string url_string = validated_url.spec();
 229   NavigationEntry* entry =
 230     web_contents()->GetController().GetLastCommittedEntry();
 231   // Note that GetBaseURLForDataURL is only used by the Android WebView.
 232   if (entry && !entry->GetBaseURLForDataURL().is_empty())
 233     url_string = entry->GetBaseURLForDataURL().possibly_invalid_spec();
 234
 235   ScopedJavaLocalRef<jstring> jstring_url(
 236       ConvertUTF8ToJavaString(env, url_string));
 237   Java_WebContentsObserverAndroid_didFinishLoad(
 238       env,
 239       obj.obj(),
 240       render_frame_host->GetRoutingID(),
 241       jstring_url.obj(),
 242       !render_frame_host->GetParent());
 243 }
 244
 245 void WebContentsObserverAndroid::DocumentLoadedInFrame(
 246     RenderFrameHost* render_frame_host) {
 247   JNIEnv* env = AttachCurrentThread();
 248   ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
 249   if (obj.is_null())
 250     return;
 251   Java_WebContentsObserverAndroid_documentLoadedInFrame(
 252       env, obj.obj(), render_frame_host->GetRoutingID());
 253 }
 254
 255 void WebContentsObserverAndroid::NavigationEntryCommitted(
 256     const LoadCommittedDetails& load_details) {
 257   JNIEnv* env = AttachCurrentThread();
 258   ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
 259   if (obj.is_null())
 260     return;
 261   Java_WebContentsObserverAndroid_navigationEntryCommitted(env, obj.obj());
 262 }
 263
 264 void WebContentsObserverAndroid::DidAttachInterstitialPage() {
 265   JNIEnv* env = AttachCurrentThread();
 266   ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
 267   if (obj.is_null())
 268     return;
 269   Java_WebContentsObserverAndroid_didAttachInterstitialPage(env, obj.obj());
 270 }
 271
 272 void WebContentsObserverAndroid::DidDetachInterstitialPage() {
 273   JNIEnv* env = AttachCurrentThread();
 274   ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
 275   if (obj.is_null())
 276     return;
 277   Java_WebContentsObserverAndroid_didDetachInterstitialPage(env, obj.obj());
 278 }
 279
 280 void WebContentsObserverAndroid::DidChangeThemeColor(SkColor color) {
 281   JNIEnv* env = AttachCurrentThread();
 282   ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
 283   if (obj.is_null())
 284     return;
 285   Java_WebContentsObserverAndroid_didChangeThemeColor(env, obj.obj(), color);
 286 }
 287
 288 void WebContentsObserverAndroid::DidFailLoadInternal(
 289     bool is_provisional_load,
 290     bool is_main_frame,
 291     int error_code,
 292     const base::string16& description,
 293     const GURL& url) {
 294   JNIEnv* env = AttachCurrentThread();
 295   ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
 296   if (obj.is_null())
 297     return;
 298   ScopedJavaLocalRef<jstring> jstring_error_description(
 299       ConvertUTF16ToJavaString(env, description));
 300   ScopedJavaLocalRef<jstring> jstring_url(
 301       ConvertUTF8ToJavaString(env, url.spec()));
 302
 303   Java_WebContentsObserverAndroid_didFailLoad(
 304       env, obj.obj(),
 305       is_provisional_load,
 306       is_main_frame,
 307       error_code,
 308       jstring_error_description.obj(), jstring_url.obj());
 309 }
 310
 311 void WebContentsObserverAndroid::DidFirstVisuallyNonEmptyPaint() {
 312   JNIEnv* env = AttachCurrentThread();
 313   ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
 314   if (obj.is_null())
 315     return;
 316   Java_WebContentsObserverAndroid_didFirstVisuallyNonEmptyPaint(
 317       env, obj.obj());
 318 }
 319
 320 bool RegisterWebContentsObserverAndroid(JNIEnv* env) {
 321   return RegisterNativesImpl(env);
 322 }
 323 }  // namespace content