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