chrome/browser/android/contextualsearch/contextual_search_manager.cc

   1 // Copyright 2015 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 "chrome/browser/android/contextualsearch/contextual_search_manager.h"
   6
   7 #include <set>
   8
   9 #include "base/android/jni_string.h"
  10 #include "base/callback.h"
  11 #include "base/memory/weak_ptr.h"
  12 #include "base/time/time.h"
  13 #include "chrome/browser/android/contextualsearch/contextual_search_delegate.h"
  14 #include "chrome/browser/android/tab_android.h"
  15 #include "chrome/browser/history/history_service_factory.h"
  16 #include "chrome/browser/profiles/profile_manager.h"
  17 #include "chrome/browser/search_engines/template_url_service_factory.h"
  18 #include "chrome/browser/ui/android/window_android_helper.h"
  19 #include "components/history/core/browser/history_service.h"
  20 #include "components/navigation_interception/intercept_navigation_delegate.h"
  21 #include "components/variations/variations_associated_data.h"
  22 #include "components/web_contents_delegate_android/web_contents_delegate_android.h"
  23 #include "content/public/browser/android/content_view_core.h"
  24 #include "content/public/browser/web_contents.h"
  25 #include "jni/ContextualSearchManager_jni.h"
  26 #include "net/url_request/url_fetcher_impl.h"
  27
  28 using content::ContentViewCore;
  29
  30 namespace {
  31
  32 const int kHistoryDeletionWindowSeconds = 2;
  33
  34 // Because we need a callback, this needs to exist.
  35 void OnHistoryDeletionDone() {
  36 }
  37
  38 }  // namespace
  39
  40 // This class manages the native behavior of the Contextual Search feature.
  41 // Instances of this class are owned by the Java ContextualSearchManager.
  42 // Most of the work is actually done in an associated delegate to this class:
  43 // the ContextualSearchDelegate.
  44 ContextualSearchManager::ContextualSearchManager(JNIEnv* env, jobject obj) {
  45   java_manager_.Reset(env, obj);
  46   Java_ContextualSearchManager_setNativeManager(
  47       env, obj, reinterpret_cast<intptr_t>(this));
  48   Profile* profile = ProfileManager::GetActiveUserProfile();
  49   delegate_.reset(new ContextualSearchDelegate(
  50       profile->GetRequestContext(),
  51       TemplateURLServiceFactory::GetForProfile(profile),
  52       base::Bind(&ContextualSearchManager::OnSearchTermResolutionResponse,
  53                  base::Unretained(this)),
  54       base::Bind(&ContextualSearchManager::OnSurroundingTextAvailable,
  55                  base::Unretained(this)),
  56       base::Bind(&ContextualSearchManager::OnIcingSelectionAvailable,
  57                  base::Unretained(this))));
  58 }
  59
  60 ContextualSearchManager::~ContextualSearchManager() {
  61   JNIEnv* env = base::android::AttachCurrentThread();
  62   Java_ContextualSearchManager_clearNativeManager(env, java_manager_.obj());
  63 }
  64
  65 void ContextualSearchManager::Destroy(JNIEnv* env, jobject obj) { delete this; }
  66
  67 void ContextualSearchManager::StartSearchTermResolutionRequest(
  68     JNIEnv* env,
  69     jobject obj,
  70     jstring j_selection,
  71     jboolean j_use_resolved_search_term,
  72     jobject j_base_content_view_core,
  73     jboolean j_may_send_base_page_url) {
  74   ContentViewCore* base_content_view_core =
  75       ContentViewCore::GetNativeContentViewCore(env, j_base_content_view_core);
  76   DCHECK(base_content_view_core);
  77   std::string selection(
  78       base::android::ConvertJavaStringToUTF8(env, j_selection));
  79   bool use_resolved_search_term = j_use_resolved_search_term;
  80   bool may_send_base_page_url = j_may_send_base_page_url;
  81   // Calls back to OnSearchTermResolutionResponse.
  82   delegate_->StartSearchTermResolutionRequest(
  83       selection, use_resolved_search_term, base_content_view_core,
  84       may_send_base_page_url);
  85 }
  86
  87 void ContextualSearchManager::GatherSurroundingText(
  88     JNIEnv* env,
  89     jobject obj,
  90     jstring j_selection,
  91     jboolean j_use_resolved_search_term,
  92     jobject j_base_content_view_core,
  93     jboolean j_may_send_base_page_url) {
  94   ContentViewCore* base_content_view_core =
  95       ContentViewCore::GetNativeContentViewCore(env, j_base_content_view_core);
  96   DCHECK(base_content_view_core);
  97   std::string selection(
  98       base::android::ConvertJavaStringToUTF8(env, j_selection));
  99   bool use_resolved_search_term = j_use_resolved_search_term;
 100   bool may_send_base_page_url = j_may_send_base_page_url;
 101   delegate_->GatherAndSaveSurroundingText(selection, use_resolved_search_term,
 102                                           base_content_view_core,
 103                                           may_send_base_page_url);
 104 }
 105
 106 void ContextualSearchManager::OnSearchTermResolutionResponse(
 107     bool is_invalid,
 108     int response_code,
 109     const std::string& search_term,
 110     const std::string& display_text,
 111     const std::string& alternate_term,
 112     bool prevent_preload,
 113     int selection_start_adjust,
 114     int selection_end_adjust) {
 115   // Notify the Java UX of the result.
 116   JNIEnv* env = base::android::AttachCurrentThread();
 117   base::android::ScopedJavaLocalRef<jstring> j_search_term =
 118       base::android::ConvertUTF8ToJavaString(env, search_term.c_str());
 119   base::android::ScopedJavaLocalRef<jstring> j_display_text =
 120       base::android::ConvertUTF8ToJavaString(env, display_text.c_str());
 121   base::android::ScopedJavaLocalRef<jstring> j_alternate_term =
 122       base::android::ConvertUTF8ToJavaString(env, alternate_term.c_str());
 123   Java_ContextualSearchManager_onSearchTermResolutionResponse(
 124       env, java_manager_.obj(), is_invalid, response_code, j_search_term.obj(),
 125       j_display_text.obj(), j_alternate_term.obj(), prevent_preload,
 126       selection_start_adjust, selection_end_adjust);
 127 }
 128
 129 void ContextualSearchManager::OnSurroundingTextAvailable(
 130     const std::string& before_text,
 131     const std::string& after_text) {
 132   JNIEnv* env = base::android::AttachCurrentThread();
 133   base::android::ScopedJavaLocalRef<jstring> j_before_text =
 134       base::android::ConvertUTF8ToJavaString(env, before_text.c_str());
 135   base::android::ScopedJavaLocalRef<jstring> j_after_text =
 136       base::android::ConvertUTF8ToJavaString(env, after_text.c_str());
 137   Java_ContextualSearchManager_onSurroundingTextAvailable(
 138       env,
 139       java_manager_.obj(),
 140       j_before_text.obj(),
 141       j_after_text.obj());
 142 }
 143
 144 void ContextualSearchManager::OnIcingSelectionAvailable(
 145     const std::string& encoding,
 146     const base::string16& surrounding_text,
 147     size_t start_offset,
 148     size_t end_offset) {
 149   JNIEnv* env = base::android::AttachCurrentThread();
 150   base::android::ScopedJavaLocalRef<jstring> j_encoding =
 151       base::android::ConvertUTF8ToJavaString(env, encoding.c_str());
 152   base::android::ScopedJavaLocalRef<jstring> j_surrounding_text =
 153       base::android::ConvertUTF16ToJavaString(env, surrounding_text.c_str());
 154   Java_ContextualSearchManager_onIcingSelectionAvailable(
 155       env, java_manager_.obj(), j_encoding.obj(), j_surrounding_text.obj(),
 156       start_offset, end_offset);
 157 }
 158
 159 void ContextualSearchManager::RemoveLastSearchVisit(
 160     JNIEnv* env,
 161     jobject obj,
 162     jstring search_url,
 163     jlong search_start_time_ms) {
 164   // The deletion window is from the time a search URL was put in history, up
 165   // to a short amount of time later.
 166   base::Time begin_time = base::Time::FromJsTime(search_start_time_ms);
 167   base::Time end_time = begin_time +
 168       base::TimeDelta::FromSeconds(kHistoryDeletionWindowSeconds);
 169
 170   history::HistoryService* service = HistoryServiceFactory::GetForProfile(
 171       ProfileManager::GetActiveUserProfile(),
 172       ServiceAccessType::EXPLICIT_ACCESS);
 173   if (service) {
 174     // NOTE(mathp): We are only removing |search_url| from the local history
 175     // because search results that are not promoted to a Tab do not make it to
 176     // the web history, only local.
 177     std::set<GURL> restrict_set;
 178     restrict_set.insert(
 179         GURL(base::android::ConvertJavaStringToUTF8(env, search_url)));
 180     service->ExpireHistoryBetween(
 181         restrict_set,
 182         begin_time,
 183         end_time,
 184         base::Bind(&OnHistoryDeletionDone),
 185         &history_task_tracker_);
 186   }
 187 }
 188
 189 void ContextualSearchManager::SetWebContents(JNIEnv* env,
 190                                              jobject obj,
 191                                              jobject jcontent_view_core,
 192                                              jobject jweb_contents_delegate) {
 193   content::ContentViewCore* content_view_core =
 194       content::ContentViewCore::GetNativeContentViewCore(env,
 195                                                          jcontent_view_core);
 196   DCHECK(content_view_core);
 197   DCHECK(content_view_core->GetWebContents());
 198
 199   // NOTE(pedrosimonetti): Takes ownership of the WebContents associated
 200   // with the ContentViewCore. This is to make sure that the WebContens
 201   // and the Compositor are in the same process.
 202   // TODO(pedrosimonetti): Confirm with dtrainor@ if the comment above
 203   // is accurate.
 204   web_contents_.reset(content_view_core->GetWebContents());
 205   // TODO(pedrosimonetti): confirm if we need this after promoting it
 206   // to a real tab.
 207   TabAndroid::AttachTabHelpers(web_contents_.get());
 208   WindowAndroidHelper::FromWebContents(web_contents_.get())
 209       ->SetWindowAndroid(content_view_core->GetWindowAndroid());
 210   web_contents_delegate_.reset(
 211       new web_contents_delegate_android::WebContentsDelegateAndroid(
 212           env, jweb_contents_delegate));
 213   web_contents_->SetDelegate(web_contents_delegate_.get());
 214 }
 215
 216 void ContextualSearchManager::DestroyWebContents(JNIEnv* env, jobject jobj) {
 217   DCHECK(web_contents_.get());
 218   web_contents_.reset();
 219   // |web_contents_delegate_| may already be NULL at this point.
 220   web_contents_delegate_.reset();
 221 }
 222
 223 void ContextualSearchManager::ReleaseWebContents(JNIEnv* env, jobject jboj) {
 224   DCHECK(web_contents_.get());
 225   web_contents_delegate_.reset();
 226   ignore_result(web_contents_.release());
 227 }
 228
 229 void ContextualSearchManager::DestroyWebContentsFromContentViewCore(
 230     JNIEnv* env,
 231     jobject jobj,
 232     jobject jcontent_view_core) {
 233   content::ContentViewCore* content_view_core =
 234       content::ContentViewCore::GetNativeContentViewCore(env,
 235                                                          jcontent_view_core);
 236   DCHECK(content_view_core);
 237   DCHECK(content_view_core->GetWebContents());
 238
 239   delete content_view_core->GetWebContents();
 240 }
 241
 242 void ContextualSearchManager::SetInterceptNavigationDelegate(
 243     JNIEnv* env,
 244     jobject obj,
 245     jobject delegate,
 246     jobject jweb_contents) {
 247   content::WebContents* web_contents =
 248       content::WebContents::FromJavaWebContents(jweb_contents);
 249   DCHECK(web_contents);
 250   navigation_interception::InterceptNavigationDelegate::Associate(
 251       web_contents,
 252       make_scoped_ptr(new navigation_interception::InterceptNavigationDelegate(
 253           env, delegate)));
 254 }
 255
 256 bool RegisterContextualSearchManager(JNIEnv* env) {
 257   return RegisterNativesImpl(env);
 258 }
 259
 260 jlong Init(JNIEnv* env, jobject obj) {
 261   ContextualSearchManager* manager = new ContextualSearchManager(env, obj);
 262   return reinterpret_cast<intptr_t>(manager);
 263 }