src/chrome/browser/ui/gtk/infobars/after_translate_infobar_gtk.cc

   1 // Copyright (c) 2011 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/gtk/infobars/after_translate_infobar_gtk.h"
   6
   7 #include "base/bind.h"
   8 #include "base/message_loop/message_loop.h"
   9 #include "base/strings/utf_string_conversions.h"
  10 #include "chrome/browser/translate/translate_infobar_delegate.h"
  11 #include "chrome/browser/ui/gtk/gtk_util.h"
  12 #include "grit/generated_resources.h"
  13 #include "ui/base/gtk/gtk_hig_constants.h"
  14 #include "ui/base/gtk/gtk_signal_registrar.h"
  15 #include "ui/base/l10n/l10n_util.h"
  16
  17 AfterTranslateInfoBar::AfterTranslateInfoBar(
  18     InfoBarService* owner,
  19     TranslateInfoBarDelegate* delegate)
  20     : TranslateInfoBarBase(owner, delegate),
  21       weak_factory_(this) {
  22 }
  23
  24 AfterTranslateInfoBar::~AfterTranslateInfoBar() {
  25 }
  26
  27 void AfterTranslateInfoBar::InitWidgets() {
  28   TranslateInfoBarBase::InitWidgets();
  29
  30   bool swapped_language_combos = false;
  31   bool autodetermined_source_language =
  32       GetDelegate()->original_language_index() ==
  33       TranslateInfoBarDelegate::kNoIndex;
  34
  35   std::vector<string16> strings;
  36   TranslateInfoBarDelegate::GetAfterTranslateStrings(
  37         &strings, &swapped_language_combos, autodetermined_source_language);
  38   DCHECK_EQ(autodetermined_source_language ? 2U : 3U, strings.size());
  39
  40   GtkWidget* new_hbox = gtk_hbox_new(FALSE, ui::kControlSpacing);
  41   gtk_util::CenterWidgetInHBox(hbox(), new_hbox, false, 0);
  42
  43   size_t original_language_index = GetDelegate()->original_language_index();
  44   size_t target_language_index = GetDelegate()->target_language_index();
  45   bool exclude_the_other = original_language_index != target_language_index;
  46
  47   GtkWidget* original_lang_combo = NULL;
  48   if (!autodetermined_source_language) {
  49     original_lang_combo = CreateLanguageCombobox(
  50         original_language_index,
  51         exclude_the_other ?
  52             target_language_index : TranslateInfoBarDelegate::kNoIndex);
  53     signals()->Connect(original_lang_combo, "changed",
  54                        G_CALLBACK(&OnOriginalLanguageModifiedThunk), this);
  55   }
  56   GtkWidget* target_lang_combo = CreateLanguageCombobox(
  57       target_language_index,
  58       exclude_the_other ? original_language_index :
  59                           TranslateInfoBarDelegate::kNoIndex);
  60   signals()->Connect(target_lang_combo, "changed",
  61                      G_CALLBACK(&OnTargetLanguageModifiedThunk), this);
  62
  63   gtk_box_pack_start(GTK_BOX(new_hbox), CreateLabel(UTF16ToUTF8(strings[0])),
  64                      FALSE, FALSE, 0);
  65   gtk_box_pack_start(
  66       GTK_BOX(new_hbox),
  67       (swapped_language_combos || autodetermined_source_language) ?
  68           target_lang_combo : original_lang_combo,
  69       FALSE, FALSE, 0);
  70   gtk_box_pack_start(GTK_BOX(new_hbox), CreateLabel(UTF16ToUTF8(strings[1])),
  71                      FALSE, FALSE, 0);
  72   if (!autodetermined_source_language) {
  73     gtk_box_pack_start(GTK_BOX(new_hbox),
  74                        swapped_language_combos ?
  75                            original_lang_combo : target_lang_combo,
  76                        FALSE, FALSE, 0);
  77     gtk_box_pack_start(GTK_BOX(new_hbox), CreateLabel(UTF16ToUTF8(strings[2])),
  78                        FALSE, FALSE, 0);
  79   }
  80
  81   GtkWidget* button = gtk_button_new_with_label(
  82       l10n_util::GetStringUTF8(IDS_TRANSLATE_INFOBAR_REVERT).c_str());
  83   signals()->Connect(button, "clicked",
  84                      G_CALLBACK(&OnRevertPressedThunk), this);
  85   gtk_box_pack_start(GTK_BOX(new_hbox), button, FALSE, FALSE, 0);
  86 }
  87
  88 bool AfterTranslateInfoBar::ShowOptionsMenuButton() const {
  89   return true;
  90 }
  91
  92 void AfterTranslateInfoBar::SetOriginalLanguage(size_t language_index) {
  93   GetDelegate()->UpdateOriginalLanguageIndex(language_index);
  94   GetDelegate()->Translate();
  95 }
  96
  97 void AfterTranslateInfoBar::SetTargetLanguage(size_t language_index) {
  98   GetDelegate()->UpdateTargetLanguageIndex(language_index);
  99   GetDelegate()->Translate();
 100 }
 101
 102 void AfterTranslateInfoBar::OnOriginalLanguageModified(GtkWidget* sender) {
 103   size_t index = GetLanguageComboboxActiveId(GTK_COMBO_BOX(sender));
 104   if (index == GetDelegate()->original_language_index())
 105     return;
 106
 107   // Setting the language will lead to a new translation that is going to close
 108   // the infobar.  This is not OK to do this from the signal handler, so we'll
 109   // defer it.
 110   base::MessageLoop::current()->PostTask(
 111       FROM_HERE,
 112       base::Bind(&AfterTranslateInfoBar::SetOriginalLanguage,
 113                  weak_factory_.GetWeakPtr(),
 114                  index));
 115 }
 116
 117 void AfterTranslateInfoBar::OnTargetLanguageModified(GtkWidget* sender) {
 118   size_t index = GetLanguageComboboxActiveId(GTK_COMBO_BOX(sender));
 119   if (index == GetDelegate()->target_language_index())
 120     return;
 121
 122   // See comment in OnOriginalLanguageModified on why we use a task.
 123   base::MessageLoop::current()->PostTask(
 124       FROM_HERE,
 125       base::Bind(&AfterTranslateInfoBar::SetTargetLanguage,
 126                  weak_factory_.GetWeakPtr(),
 127                  index));
 128 }
 129
 130 void AfterTranslateInfoBar::OnRevertPressed(GtkWidget* sender) {
 131   GetDelegate()->RevertTranslation();
 132 }