content/browser/android/date_time_chooser_android.cc

   1 // Copyright (c) 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 "content/browser/android/date_time_chooser_android.h"
   6
   7 #include "base/android/jni_android.h"
   8 #include "base/android/jni_string.h"
   9 #include "base/i18n/char_iterator.h"
  10 #include "content/common/date_time_suggestion.h"
  11 #include "content/common/view_messages.h"
  12 #include "content/public/browser/render_view_host.h"
  13 #include "jni/DateTimeChooserAndroid_jni.h"
  14 #include "third_party/icu/source/common/unicode/uchar.h"
  15 #include "third_party/icu/source/common/unicode/unistr.h"
  16 #include "ui/android/window_android.h"
  17
  18 using base::android::AttachCurrentThread;
  19 using base::android::ConvertJavaStringToUTF16;
  20 using base::android::ConvertUTF8ToJavaString;
  21 using base::android::ConvertUTF16ToJavaString;
  22
  23
  24 namespace {
  25
  26 base::string16 SanitizeSuggestionString(const base::string16& string) {
  27   base::string16 trimmed = string.substr(0, 255);
  28   icu::UnicodeString sanitized;
  29   base::i18n::UTF16CharIterator sanitized_iterator(&trimmed);
  30   while (!sanitized_iterator.end()) {
  31     UChar c = sanitized_iterator.get();
  32     if (u_isprint(c))
  33       sanitized.append(c);
  34     sanitized_iterator.Advance();
  35   }
  36   return base::string16(sanitized.getBuffer(),
  37                         static_cast<size_t>(sanitized.length()));
  38 }
  39
  40 }  // namespace
  41
  42 namespace content {
  43
  44 // DateTimeChooserAndroid implementation
  45 DateTimeChooserAndroid::DateTimeChooserAndroid()
  46   : host_(NULL) {
  47 }
  48
  49 DateTimeChooserAndroid::~DateTimeChooserAndroid() {
  50 }
  51
  52 void DateTimeChooserAndroid::ReplaceDateTime(JNIEnv* env,
  53                                              jobject,
  54                                              jdouble value) {
  55   host_->Send(new ViewMsg_ReplaceDateTime(host_->GetRoutingID(), value));
  56 }
  57
  58 void DateTimeChooserAndroid::CancelDialog(JNIEnv* env, jobject) {
  59   host_->Send(new ViewMsg_CancelDateTimeDialog(host_->GetRoutingID()));
  60 }
  61
  62 void DateTimeChooserAndroid::ShowDialog(
  63     gfx::NativeWindow native_window,
  64     RenderViewHost* host,
  65     ui::TextInputType dialog_type,
  66     double dialog_value,
  67     double min,
  68     double max,
  69     double step,
  70     const std::vector<DateTimeSuggestion>& suggestions) {
  71   host_ = host;
  72
  73   JNIEnv* env = AttachCurrentThread();
  74   ScopedJavaLocalRef<jobjectArray> suggestions_array;
  75
  76   if (suggestions.size() > 0) {
  77     suggestions_array =
  78         Java_DateTimeChooserAndroid_createSuggestionsArray(env,
  79                                                            suggestions.size());
  80     for (size_t i = 0; i < suggestions.size(); ++i) {
  81       const content::DateTimeSuggestion& suggestion = suggestions[i];
  82       ScopedJavaLocalRef<jstring> localized_value = ConvertUTF16ToJavaString(
  83           env, SanitizeSuggestionString(suggestion.localized_value));
  84       ScopedJavaLocalRef<jstring> label = ConvertUTF16ToJavaString(
  85           env, SanitizeSuggestionString(suggestion.label));
  86       Java_DateTimeChooserAndroid_setDateTimeSuggestionAt(env,
  87           suggestions_array.obj(), i,
  88           suggestion.value, localized_value.obj(), label.obj());
  89     }
  90   }
  91
  92   j_date_time_chooser_.Reset(Java_DateTimeChooserAndroid_createDateTimeChooser(
  93       env,
  94       native_window->GetJavaObject().obj(),
  95       reinterpret_cast<intptr_t>(this),
  96       dialog_type,
  97       dialog_value,
  98       min,
  99       max,
 100       step,
 101       suggestions_array.obj()));
 102   if (j_date_time_chooser_.is_null())
 103     ReplaceDateTime(env, j_date_time_chooser_.obj(), dialog_value);
 104 }
 105
 106 // ----------------------------------------------------------------------------
 107 // Native JNI methods
 108 // ----------------------------------------------------------------------------
 109 bool RegisterDateTimeChooserAndroid(JNIEnv* env) {
 110   return RegisterNativesImpl(env);
 111 }
 112
 113 }  // namespace content