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/sad_tab_gtk.h" 6 7 #include <string> 8 9 #include "chrome/browser/google/google_util.h" 10 #include "chrome/browser/ui/gtk/gtk_chrome_link_button.h" 11 #include "chrome/browser/ui/gtk/gtk_util.h" 12 #include "chrome/common/url_constants.h" 13 #include "content/browser/tab_contents/tab_contents.h" 14 #include "grit/generated_resources.h" 15 #include "grit/locale_settings.h" 16 #include "grit/theme_resources.h" 17 #include "ui/base/l10n/l10n_util.h" 18 #include "ui/base/resource/resource_bundle.h" 19 20 namespace { 21 22 // Background color of the content (a grayish blue) for a crashed tab. 23 const GdkColor kCrashedBackgroundColor = GDK_COLOR_RGB(35, 48, 64); 24 25 // Background color of the content (a grayish purple) for a killed 26 // tab. TODO(gspencer): update this for the "real" color when the UI 27 // team provides one. See http://crosbug.com/10711 28 const GdkColor kKilledBackgroundColor = GDK_COLOR_RGB(57, 48, 88); 29 30 // Construct a centered GtkLabel with a white foreground. 31 // |format| is a printf-style format containing a %s; 32 // |str| is substituted into the format. 33 GtkWidget* MakeWhiteMarkupLabel(const char* format, const std::string& str) { 34 GtkWidget* label = gtk_label_new(NULL); 35 char* markup = g_markup_printf_escaped(format, str.c_str()); 36 gtk_label_set_markup(GTK_LABEL(label), markup); 37 g_free(markup); 38 39 // Center align and justify it. 40 gtk_misc_set_alignment(GTK_MISC(label), 0.5, 0.5); 41 gtk_label_set_justify(GTK_LABEL(label), GTK_JUSTIFY_CENTER); 42 43 // Set text to white. 44 GdkColor white = gtk_util::kGdkWhite; 45 gtk_widget_modify_fg(label, GTK_STATE_NORMAL, &white); 46 47 return label; 48 } 49 50 } // namespace 51 52 SadTabGtk::SadTabGtk(TabContents* tab_contents, Kind kind) 53 : tab_contents_(tab_contents), 54 kind_(kind) { 55 DCHECK(tab_contents_); 56 57 // Use an event box to get the background painting correctly. 58 event_box_.Own(gtk_event_box_new()); 59 gtk_widget_modify_bg(event_box_.get(), GTK_STATE_NORMAL, 60 kind == CRASHED ? 61 &kCrashedBackgroundColor : 62 &kKilledBackgroundColor); 63 // Allow ourselves to be resized arbitrarily small. 64 gtk_widget_set_size_request(event_box_.get(), 0, 0); 65 66 GtkWidget* centering = gtk_alignment_new(0.5, 0.5, 0.0, 0.0); 67 gtk_container_add(GTK_CONTAINER(event_box_.get()), centering); 68 69 // Use a vertical box to contain icon, title, message and link. 70 GtkWidget* vbox = gtk_vbox_new(FALSE, 0); 71 gtk_container_add(GTK_CONTAINER(centering), vbox); 72 73 // Add center-aligned image. 74 GtkWidget* image = gtk_image_new_from_pixbuf( 75 ResourceBundle::GetSharedInstance().GetPixbufNamed(kind == CRASHED ? 76 IDR_SAD_TAB : 77 IDR_KILLED_TAB)); 78 gtk_misc_set_alignment(GTK_MISC(image), 0.5, 0.5); 79 gtk_box_pack_start(GTK_BOX(vbox), image, FALSE, FALSE, 0); 80 81 // Add spacer between image and title. 82 GtkWidget* spacer = gtk_label_new(NULL); 83 gtk_label_set_markup(GTK_LABEL(spacer), "<span size=\"larger\"> </span>"); 84 gtk_box_pack_start(GTK_BOX(vbox), spacer, FALSE, FALSE, 0); 85 86 // Add center-aligned title. 87 GtkWidget* title = MakeWhiteMarkupLabel( 88 "<span size=\"larger\" style=\"normal\"><b>%s</b></span>", 89 l10n_util::GetStringUTF8(kind == CRASHED ? 90 IDS_SAD_TAB_TITLE : 91 IDS_KILLED_TAB_TITLE)); 92 gtk_box_pack_start(GTK_BOX(vbox), title, FALSE, FALSE, 0); 93 94 // Add spacer between title and message. 95 spacer = gtk_label_new(" "); 96 gtk_box_pack_start(GTK_BOX(vbox), spacer, FALSE, FALSE, 0); 97 98 // Add center-aligned message. 99 GtkWidget* message = MakeWhiteMarkupLabel( 100 "<span style=\"normal\">%s</span>", 101 l10n_util::GetStringUTF8(kind == CRASHED ? 102 IDS_SAD_TAB_MESSAGE : 103 IDS_KILLED_TAB_MESSAGE)); 104 gtk_label_set_line_wrap(GTK_LABEL(message), TRUE); 105 gtk_box_pack_start(GTK_BOX(vbox), message, FALSE, FALSE, 0); 106 107 // Add spacer between message and link. 108 spacer = gtk_label_new(" "); 109 gtk_box_pack_start(GTK_BOX(vbox), spacer, FALSE, FALSE, 0); 110 111 if (tab_contents_ != NULL) { 112 // Add the learn-more link and center-align it in an alignment. 113 GtkWidget* link = gtk_chrome_link_button_new( 114 l10n_util::GetStringUTF8(IDS_LEARN_MORE).c_str()); 115 gtk_chrome_link_button_set_normal_color(GTK_CHROME_LINK_BUTTON(link), 116 >k_util::kGdkWhite); 117 g_signal_connect(link, "clicked", G_CALLBACK(OnLinkButtonClickThunk), this); 118 GtkWidget* link_alignment = gtk_alignment_new(0.5, 0.5, 0.0, 0.0); 119 gtk_container_add(GTK_CONTAINER(link_alignment), link); 120 gtk_box_pack_start(GTK_BOX(vbox), link_alignment, FALSE, FALSE, 0); 121 } 122 123 gtk_widget_show_all(event_box_.get()); 124 } 125 126 SadTabGtk::~SadTabGtk() { 127 event_box_.Destroy(); 128 } 129 130 void SadTabGtk::OnLinkButtonClick(GtkWidget* sender) { 131 if (tab_contents_ != NULL) { 132 GURL help_url = 133 google_util::AppendGoogleLocaleParam(GURL( 134 kind_ == CRASHED ? 135 chrome::kCrashReasonURL : 136 chrome::kKillReasonURL)); 137 tab_contents_->OpenURL(help_url, GURL(), CURRENT_TAB, PageTransition::LINK); 138 } 139 } 140
