chrome/browser/ui/android/context_menu_helper.cc

   1 // Copyright 2013 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/ui/android/context_menu_helper.h"
   6
   7 #include "base/android/jni_android.h"
   8 #include "base/android/jni_string.h"
   9 #include "content/public/browser/android/content_view_core.h"
  10 #include "content/public/browser/android/download_controller_android.h"
  11 #include "content/public/common/context_menu_params.h"
  12 #include "jni/ContextMenuHelper_jni.h"
  13 #include "jni/ContextMenuParams_jni.h"
  14 #include "ui/gfx/point.h"
  15
  16 using base::android::ConvertUTF8ToJavaString;
  17 using base::android::ConvertUTF16ToJavaString;
  18 using base::android::ScopedJavaLocalRef;
  19
  20 DEFINE_WEB_CONTENTS_USER_DATA_KEY(ContextMenuHelper);
  21
  22 ContextMenuHelper::ContextMenuHelper(content::WebContents* web_contents)
  23     : web_contents_(web_contents) {
  24   JNIEnv* env = base::android::AttachCurrentThread();
  25   java_obj_.Reset(
  26       env,
  27       Java_ContextMenuHelper_create(env, reinterpret_cast<long>(this)).obj());
  28   DCHECK(!java_obj_.is_null());
  29 }
  30
  31 ContextMenuHelper::~ContextMenuHelper() {
  32   JNIEnv* env = base::android::AttachCurrentThread();
  33   Java_ContextMenuHelper_destroy(env, java_obj_.obj());
  34 }
  35
  36 void ContextMenuHelper::ShowContextMenu(
  37     const content::ContextMenuParams& params) {
  38   content::ContentViewCore* content_view_core =
  39       content::ContentViewCore::FromWebContents(web_contents_);
  40
  41   if (!content_view_core)
  42     return;
  43
  44   JNIEnv* env = base::android::AttachCurrentThread();
  45   context_menu_params_ = params;
  46   Java_ContextMenuHelper_showContextMenu(
  47       env,
  48       java_obj_.obj(),
  49       content_view_core->GetJavaObject().obj(),
  50       ContextMenuHelper::CreateJavaContextMenuParams(params).obj());
  51 }
  52
  53 // Called to show a custom context menu. Used by the NTP.
  54 void ContextMenuHelper::ShowCustomContextMenu(
  55     const content::ContextMenuParams& params,
  56     const base::Callback<void(int)>& callback) {
  57   context_menu_callback_ = callback;
  58   ShowContextMenu(params);
  59 }
  60
  61 void ContextMenuHelper::SetPopulator(jobject jpopulator) {
  62   JNIEnv* env = base::android::AttachCurrentThread();
  63   Java_ContextMenuHelper_setPopulator(env, java_obj_.obj(), jpopulator);
  64 }
  65
  66 base::android::ScopedJavaLocalRef<jobject>
  67 ContextMenuHelper::CreateJavaContextMenuParams(
  68     const content::ContextMenuParams& params) {
  69   JNIEnv* env = base::android::AttachCurrentThread();
  70   base::android::ScopedJavaLocalRef<jobject> jmenu_info =
  71       ContextMenuParamsAndroid::Java_ContextMenuParams_create(
  72           env,
  73           params.media_type,
  74           ConvertUTF8ToJavaString(env, params.link_url.spec()).obj(),
  75           ConvertUTF16ToJavaString(env, params.link_text).obj(),
  76           ConvertUTF8ToJavaString(env, params.unfiltered_link_url.spec()).obj(),
  77           ConvertUTF8ToJavaString(env, params.src_url.spec()).obj(),
  78           ConvertUTF16ToJavaString(env, params.selection_text).obj(),
  79           params.is_editable);
  80
  81   std::vector<content::MenuItem>::const_iterator i;
  82   for (i = params.custom_items.begin(); i != params.custom_items.end(); ++i) {
  83     ContextMenuParamsAndroid::Java_ContextMenuParams_addCustomItem(
  84         env,
  85         jmenu_info.obj(),
  86         ConvertUTF16ToJavaString(env, i->label).obj(),
  87         i->action);
  88   }
  89
  90   return jmenu_info;
  91 }
  92
  93 void ContextMenuHelper::OnCustomItemSelected(JNIEnv* env,
  94                                              jobject obj,
  95                                              jint action) {
  96   if (!context_menu_callback_.is_null()) {
  97     context_menu_callback_.Run(action);
  98     context_menu_callback_.Reset();
  99   }
 100 }
 101
 102 void ContextMenuHelper::OnStartDownload(JNIEnv* env,
 103                                         jobject obj,
 104                                         jboolean jis_link) {
 105   content::DownloadControllerAndroid::Get()->StartContextMenuDownload(
 106       context_menu_params_,
 107       web_contents_,
 108       jis_link);
 109 }
 110
 111 bool RegisterContextMenuHelper(JNIEnv* env) {
 112   return RegisterNativesImpl(env) &&
 113          ContextMenuParamsAndroid::RegisterNativesImpl(env);
 114 }