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      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/confirm_infobar_gtk.h"
      6 
      7 #include <gtk/gtk.h>
      8 
      9 #include "base/strings/utf_string_conversions.h"
     10 #include "chrome/browser/ui/gtk/event_utils.h"
     11 #include "chrome/browser/ui/gtk/gtk_chrome_link_button.h"
     12 #include "chrome/browser/ui/gtk/gtk_chrome_shrinkable_hbox.h"
     13 #include "chrome/browser/ui/gtk/gtk_util.h"
     14 #include "ui/base/gtk/gtk_signal_registrar.h"
     15 
     16 
     17 // ConfirmInfoBarDelegate ------------------------------------------------------
     18 
     19 InfoBar* ConfirmInfoBarDelegate::CreateInfoBar(InfoBarService* owner) {
     20   return new ConfirmInfoBarGtk(owner, this);
     21 }
     22 
     23 
     24 // ConfirmInfoBarGtk -----------------------------------------------------------
     25 
     26 ConfirmInfoBarGtk::ConfirmInfoBarGtk(InfoBarService* owner,
     27                                      ConfirmInfoBarDelegate* delegate)
     28     : InfoBarGtk(owner, delegate),
     29       confirm_hbox_(NULL),
     30       size_group_(NULL) {
     31 }
     32 
     33 ConfirmInfoBarGtk::~ConfirmInfoBarGtk() {
     34   if (size_group_)
     35     g_object_unref(size_group_);
     36 }
     37 
     38 void ConfirmInfoBarGtk::InitWidgets() {
     39   InfoBarGtk::InitWidgets();
     40 
     41   confirm_hbox_ = gtk_chrome_shrinkable_hbox_new(FALSE, FALSE,
     42                                                  kEndOfLabelSpacing);
     43   // This alignment allocates the confirm hbox only as much space as it
     44   // requests, and less if there is not enough available.
     45   GtkWidget* align = gtk_alignment_new(0, 0, 0, 1);
     46   gtk_container_add(GTK_CONTAINER(align), confirm_hbox_);
     47   gtk_box_pack_start(GTK_BOX(hbox()), align, TRUE, TRUE, 0);
     48 
     49   // We add the buttons in reverse order and pack end instead of start so
     50   // that the first widget to get shrunk is the label rather than the button(s).
     51   AddButton(ConfirmInfoBarDelegate::BUTTON_OK);
     52   AddButton(ConfirmInfoBarDelegate::BUTTON_CANCEL);
     53 
     54   std::string label_text = UTF16ToUTF8(GetDelegate()->GetMessageText());
     55   GtkWidget* label = CreateLabel(label_text);
     56   gtk_util::ForceFontSizePixels(label, 13.4);
     57   gtk_misc_set_alignment(GTK_MISC(label), 0, 0.5);
     58   gtk_util::CenterWidgetInHBox(confirm_hbox_, label, true, 0);
     59   signals()->Connect(label, "map",
     60                      G_CALLBACK(gtk_util::InitLabelSizeRequestAndEllipsizeMode),
     61                      NULL);
     62 
     63   std::string link_text = UTF16ToUTF8(GetDelegate()->GetLinkText());
     64   if (link_text.empty())
     65     return;
     66 
     67   GtkWidget* link = CreateLinkButton(link_text);
     68   gtk_misc_set_alignment(GTK_MISC(GTK_CHROME_LINK_BUTTON(link)->label), 0, 0.5);
     69   signals()->Connect(link, "clicked", G_CALLBACK(OnLinkClickedThunk), this);
     70   gtk_util::SetButtonTriggersNavigation(link);
     71   // Until we switch to vector graphics, force the font size.
     72   // 13.4px == 10pt @ 96dpi
     73   gtk_util::ForceFontSizePixels(GTK_CHROME_LINK_BUTTON(link)->label, 13.4);
     74   gtk_util::CenterWidgetInHBox(hbox(), link, true, kEndOfLabelSpacing);
     75 }
     76 
     77 ConfirmInfoBarDelegate* ConfirmInfoBarGtk::GetDelegate() {
     78   return delegate()->AsConfirmInfoBarDelegate();
     79 }
     80 
     81 void ConfirmInfoBarGtk::AddButton(ConfirmInfoBarDelegate::InfoBarButton type) {
     82   DCHECK(confirm_hbox_);
     83   if (delegate()->AsConfirmInfoBarDelegate()->GetButtons() & type) {
     84     if (!size_group_)
     85       size_group_ = gtk_size_group_new(GTK_SIZE_GROUP_HORIZONTAL);
     86 
     87     GtkWidget* button = gtk_button_new_with_label(UTF16ToUTF8(
     88         delegate()->AsConfirmInfoBarDelegate()->GetButtonLabel(type)).c_str());
     89     gtk_size_group_add_widget(size_group_, button);
     90 
     91     gtk_util::CenterWidgetInHBox(confirm_hbox_, button, true, 0);
     92     signals()->Connect(button, "clicked",
     93                        G_CALLBACK(type == ConfirmInfoBarDelegate::BUTTON_OK ?
     94                                   OnOkButtonThunk : OnCancelButtonThunk),
     95                        this);
     96   }
     97 }
     98 
     99 void ConfirmInfoBarGtk::OnOkButton(GtkWidget* widget) {
    100   if (delegate()->AsConfirmInfoBarDelegate()->Accept())
    101     RemoveSelf();
    102 }
    103 
    104 void ConfirmInfoBarGtk::OnCancelButton(GtkWidget* widget) {
    105   if (delegate()->AsConfirmInfoBarDelegate()->Cancel())
    106     RemoveSelf();
    107 }
    108 
    109 void ConfirmInfoBarGtk::OnLinkClicked(GtkWidget* widget) {
    110   if (delegate()->AsConfirmInfoBarDelegate()->LinkClicked(
    111         event_utils::DispositionForCurrentButtonPressEvent()))
    112     RemoveSelf();
    113 }
    114