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

   1 // Copyright (c) 2012 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/translate_infobar_base_gtk.h"
   6
   7 #include "base/strings/utf_string_conversions.h"
   8 #include "chrome/browser/translate/options_menu_model.h"
   9 #include "chrome/browser/translate/translate_infobar_delegate.h"
  10 #include "chrome/browser/ui/gtk/gtk_util.h"
  11 #include "chrome/browser/ui/gtk/infobars/after_translate_infobar_gtk.h"
  12 #include "chrome/browser/ui/gtk/infobars/before_translate_infobar_gtk.h"
  13 #include "chrome/browser/ui/gtk/infobars/translate_message_infobar_gtk.h"
  14 #include "chrome/browser/ui/gtk/menu_gtk.h"
  15 #include "grit/generated_resources.h"
  16 #include "ui/base/gtk/gtk_signal_registrar.h"
  17 #include "ui/base/l10n/l10n_util.h"
  18 #include "ui/gfx/animation/slide_animation.h"
  19 #include "ui/gfx/canvas.h"
  20
  21
  22 // TranslateInfoBarDelegate ---------------------------------------------------
  23
  24 // static
  25 scoped_ptr<InfoBar> TranslateInfoBarDelegate::CreateInfoBar(
  26     scoped_ptr<TranslateInfoBarDelegate> delegate) {
  27   if (delegate->infobar_type() == BEFORE_TRANSLATE)
  28     return scoped_ptr<InfoBar>(new BeforeTranslateInfoBar(delegate.Pass()));
  29   if (delegate->infobar_type() == AFTER_TRANSLATE)
  30     return scoped_ptr<InfoBar>(new AfterTranslateInfoBar(delegate.Pass()));
  31   return scoped_ptr<InfoBar>(new TranslateMessageInfoBar(delegate.Pass()));
  32 }
  33
  34
  35 // TranslateInfoBarBase -------------------------------------------------------
  36
  37 TranslateInfoBarBase::TranslateInfoBarBase(
  38     scoped_ptr<TranslateInfoBarDelegate> delegate)
  39     : InfoBarGtk(delegate.PassAs<InfoBarDelegate>()),
  40       background_error_percent_(0) {
  41   TranslateInfoBarDelegate* translate_delegate = GetDelegate();
  42   DCHECK(translate_delegate);
  43   TranslateInfoBarDelegate::BackgroundAnimationType animation =
  44       translate_delegate->background_animation_type();
  45   if (animation != TranslateInfoBarDelegate::NONE) {
  46     background_color_animation_.reset(new gfx::SlideAnimation(this));
  47     background_color_animation_->SetTweenType(gfx::Tween::LINEAR);
  48     background_color_animation_->SetSlideDuration(500);
  49     if (animation == TranslateInfoBarDelegate::NORMAL_TO_ERROR) {
  50       background_color_animation_->Show();
  51     } else {
  52       DCHECK_EQ(TranslateInfoBarDelegate::ERROR_TO_NORMAL, animation);
  53       // Hide() runs the animation in reverse.
  54       background_color_animation_->Reset(1.0);
  55       background_color_animation_->Hide();
  56     }
  57   } else {
  58     background_error_percent_ = translate_delegate->is_error() ? 1 : 0;
  59   }
  60 }
  61
  62 TranslateInfoBarBase::~TranslateInfoBarBase() {
  63 }
  64
  65 void TranslateInfoBarBase::AnimationProgressed(
  66     const gfx::Animation* animation) {
  67   DCHECK(widget());
  68   if (animation == background_color_animation_.get()) {
  69     background_error_percent_ = animation->GetCurrentValue();
  70     // Queue the info bar widget for redisplay so it repaints its background.
  71     gtk_widget_queue_draw(widget());
  72   } else {
  73     InfoBar::AnimationProgressed(animation);
  74   }
  75 }
  76
  77 void TranslateInfoBarBase::PlatformSpecificSetOwner() {
  78   InfoBarGtk::PlatformSpecificSetOwner();
  79
  80   if (!ShowOptionsMenuButton())
  81     return;
  82
  83   // The options button sits outside the translate_box so that it can be end
  84   // packed in hbox().
  85   GtkWidget* options_menu_button = CreateMenuButton(
  86       l10n_util::GetStringUTF8(IDS_TRANSLATE_INFOBAR_OPTIONS));
  87   signals()->Connect(options_menu_button, "clicked",
  88                      G_CALLBACK(&OnOptionsClickedThunk), this);
  89   gtk_widget_show_all(options_menu_button);
  90   gtk_util::CenterWidgetInHBox(hbox(), options_menu_button, true, 0);
  91 }
  92
  93 void TranslateInfoBarBase::GetTopColor(InfoBarDelegate::Type type,
  94                                        double* r, double* g, double* b) {
  95   if (background_error_percent_ <= 0) {
  96     InfoBarGtk::GetTopColor(InfoBarDelegate::PAGE_ACTION_TYPE, r, g, b);
  97   } else if (background_error_percent_ >= 1) {
  98     InfoBarGtk::GetTopColor(InfoBarDelegate::WARNING_TYPE, r, g, b);
  99   } else {
 100     double normal_r, normal_g, normal_b;
 101     InfoBarGtk::GetTopColor(InfoBarDelegate::PAGE_ACTION_TYPE,
 102                             &normal_r, &normal_g, &normal_b);
 103
 104     double error_r, error_g, error_b;
 105     InfoBarGtk::GetTopColor(InfoBarDelegate::WARNING_TYPE,
 106                             &error_r, &error_g, &error_b);
 107
 108     double offset_r = error_r - normal_r;
 109     double offset_g = error_g - normal_g;
 110     double offset_b = error_b - normal_b;
 111
 112     *r = normal_r + (background_error_percent_ * offset_r);
 113     *g = normal_g + (background_error_percent_ * offset_g);
 114     *b = normal_b + (background_error_percent_ * offset_b);
 115   }
 116 }
 117
 118 void TranslateInfoBarBase::GetBottomColor(InfoBarDelegate::Type type,
 119                                           double* r, double* g, double* b) {
 120   if (background_error_percent_ <= 0) {
 121     InfoBarGtk::GetBottomColor(InfoBarDelegate::PAGE_ACTION_TYPE, r, g, b);
 122   } else if (background_error_percent_ >= 1) {
 123     InfoBarGtk::GetBottomColor(InfoBarDelegate::WARNING_TYPE, r, g, b);
 124   } else {
 125     double normal_r, normal_g, normal_b;
 126     InfoBarGtk::GetBottomColor(InfoBarDelegate::PAGE_ACTION_TYPE,
 127                                &normal_r, &normal_g, &normal_b);
 128
 129     double error_r, error_g, error_b;
 130     InfoBarGtk::GetBottomColor(InfoBarDelegate::WARNING_TYPE,
 131                                &error_r, &error_g, &error_b);
 132
 133     double offset_r = error_r - normal_r;
 134     double offset_g = error_g - normal_g;
 135     double offset_b = error_b - normal_b;
 136
 137     *r = normal_r + (background_error_percent_ * offset_r);
 138     *g = normal_g + (background_error_percent_ * offset_g);
 139     *b = normal_b + (background_error_percent_ * offset_b);
 140   }
 141 }
 142
 143 bool TranslateInfoBarBase::ShowOptionsMenuButton() const {
 144   return false;
 145 }
 146
 147 GtkWidget* TranslateInfoBarBase::CreateLanguageCombobox(
 148     size_t selected_language,
 149     size_t exclude_language) {
 150   DCHECK(selected_language != exclude_language);
 151
 152   GtkListStore* model = gtk_list_store_new(LANGUAGE_COMBO_COLUMN_COUNT,
 153                                            G_TYPE_INT, G_TYPE_STRING);
 154   bool set_selection = false;
 155   GtkTreeIter selected_iter;
 156   TranslateInfoBarDelegate* delegate = GetDelegate();
 157   for (size_t i = 0; i < delegate->num_languages(); ++i) {
 158     if (i == exclude_language)
 159       continue;
 160     GtkTreeIter tree_iter;
 161     const base::string16& name = delegate->language_name_at(i);
 162
 163     gtk_list_store_append(model, &tree_iter);
 164     gtk_list_store_set(model, &tree_iter,
 165                        LANGUAGE_COMBO_COLUMN_ID, i,
 166                        LANGUAGE_COMBO_COLUMN_NAME,
 167                        base::UTF16ToUTF8(name).c_str(),
 168                        -1);
 169     if (i == selected_language) {
 170       selected_iter = tree_iter;
 171       set_selection = true;
 172     }
 173   }
 174
 175   GtkWidget* combobox = gtk_combo_box_new_with_model(GTK_TREE_MODEL(model));
 176   if (set_selection)
 177     gtk_combo_box_set_active_iter(GTK_COMBO_BOX(combobox), &selected_iter);
 178   g_object_unref(model);
 179   GtkCellRenderer* renderer = gtk_cell_renderer_text_new();
 180   gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(combobox), renderer, TRUE);
 181   gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(combobox), renderer,
 182                                  "text", LANGUAGE_COMBO_COLUMN_NAME,
 183                                  NULL);
 184   return combobox;
 185 }
 186
 187 // static
 188 size_t TranslateInfoBarBase::GetLanguageComboboxActiveId(GtkComboBox* combo) {
 189   GtkTreeIter iter;
 190   if (!gtk_combo_box_get_active_iter(combo, &iter))
 191     return 0;
 192
 193   gint id = 0;
 194   gtk_tree_model_get(gtk_combo_box_get_model(combo), &iter,
 195                      LANGUAGE_COMBO_COLUMN_ID, &id,
 196                      -1);
 197   return static_cast<size_t>(id);
 198 }
 199
 200 TranslateInfoBarDelegate* TranslateInfoBarBase::GetDelegate() {
 201   return static_cast<TranslateInfoBarDelegate*>(delegate());
 202 }
 203
 204 void TranslateInfoBarBase::OnOptionsClicked(GtkWidget* sender) {
 205   menu_model_.reset(new OptionsMenuModel(GetDelegate()));
 206   ShowMenuWithModel(sender, NULL, menu_model_.get());
 207 }