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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/gtk/sad_tab_gtk.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/ui/gtk/gtk_chrome_link_button.h"
#include "chrome/common/url_constants.h"
#include "content/public/browser/web_contents.h"
#include "grit/generated_resources.h"
#include "grit/locale_settings.h"
#include "grit/theme_resources.h"
#include "ui/base/gtk/gtk_hig_constants.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/gfx/image/image.h"
using content::OpenURLParams;
using content::WebContents;
namespace {
// Background color of the content (a grayish blue) for a crashed tab.
const GdkColor kCrashedBackgroundColor = GDK_COLOR_RGB(35, 48, 64);
// Background color of the content (a grayish purple) for a killed
// tab. TODO(gspencer): update this for the "real" color when the UI
// team provides one. See http://crosbug.com/10711
const GdkColor kKilledBackgroundColor = GDK_COLOR_RGB(57, 48, 88);
// Construct a centered GtkLabel with a white foreground.
// |format| is a printf-style format containing a %s;
// |str| is substituted into the format.
GtkWidget* MakeWhiteMarkupLabel(const char* format, const std::string& str) {
GtkWidget* label = gtk_label_new(NULL);
char* markup = g_markup_printf_escaped(format, str.c_str());
gtk_label_set_markup(GTK_LABEL(label), markup);
g_free(markup);
// Center align and justify it.
gtk_misc_set_alignment(GTK_MISC(label), 0.5, 0.5);
gtk_label_set_justify(GTK_LABEL(label), GTK_JUSTIFY_CENTER);
// Set text to white.
GdkColor white = ui::kGdkWhite;
gtk_widget_modify_fg(label, GTK_STATE_NORMAL, &white);
return label;
}
} // namespace
SadTabGtk::SadTabGtk(WebContents* web_contents, Kind kind)
: web_contents_(web_contents),
kind_(kind) {
DCHECK(web_contents_);
// Use an event box to get the background painting correctly.
event_box_.Own(gtk_event_box_new());
gtk_widget_modify_bg(event_box_.get(), GTK_STATE_NORMAL,
kind == CRASHED ?
&kCrashedBackgroundColor :
&kKilledBackgroundColor);
// Allow ourselves to be resized arbitrarily small.
gtk_widget_set_size_request(event_box_.get(), 0, 0);
GtkWidget* centering = gtk_alignment_new(0.5, 0.5, 0.0, 0.0);
gtk_container_add(GTK_CONTAINER(event_box_.get()), centering);
// Use a vertical box to contain icon, title, message and link.
GtkWidget* vbox = gtk_vbox_new(FALSE, 0);
gtk_container_add(GTK_CONTAINER(centering), vbox);
// Add center-aligned image.
GtkWidget* image = gtk_image_new_from_pixbuf(
ui::ResourceBundle::GetSharedInstance().GetNativeImageNamed(
kind == CRASHED ? IDR_SAD_TAB : IDR_KILLED_TAB));
gtk_misc_set_alignment(GTK_MISC(image), 0.5, 0.5);
gtk_box_pack_start(GTK_BOX(vbox), image, FALSE, FALSE, 0);
// Add spacer between image and title.
GtkWidget* spacer = gtk_label_new(NULL);
gtk_label_set_markup(GTK_LABEL(spacer), "<span size=\"larger\"> </span>");
gtk_box_pack_start(GTK_BOX(vbox), spacer, FALSE, FALSE, 0);
// Add center-aligned title.
GtkWidget* title = MakeWhiteMarkupLabel(
"<span size=\"larger\" style=\"normal\"><b>%s</b></span>",
l10n_util::GetStringUTF8(kind == CRASHED ?
IDS_SAD_TAB_TITLE :
IDS_KILLED_TAB_TITLE));
gtk_box_pack_start(GTK_BOX(vbox), title, FALSE, FALSE, 0);
// Add spacer between title and message.
spacer = gtk_label_new(" ");
gtk_box_pack_start(GTK_BOX(vbox), spacer, FALSE, FALSE, 0);
// Add center-aligned message.
GtkWidget* message = MakeWhiteMarkupLabel(
"<span style=\"normal\">%s</span>",
l10n_util::GetStringUTF8(kind == CRASHED ?
IDS_SAD_TAB_MESSAGE :
IDS_KILLED_TAB_MESSAGE));
gtk_label_set_line_wrap(GTK_LABEL(message), TRUE);
gtk_box_pack_start(GTK_BOX(vbox), message, FALSE, FALSE, 0);
// Add spacer between message and link.
spacer = gtk_label_new(" ");
gtk_box_pack_start(GTK_BOX(vbox), spacer, FALSE, FALSE, 0);
if (web_contents_ != NULL) {
// Create the help link and alignment.
std::string link_text(l10n_util::GetStringUTF8(
kind == CRASHED ? IDS_SAD_TAB_HELP_LINK : IDS_LEARN_MORE));
GtkWidget* link = gtk_chrome_link_button_new(link_text.c_str());
gtk_chrome_link_button_set_normal_color(GTK_CHROME_LINK_BUTTON(link),
&ui::kGdkWhite);
g_signal_connect(link, "clicked", G_CALLBACK(OnLinkButtonClickThunk), this);
GtkWidget* help_alignment = gtk_alignment_new(0.5, 0.5, 0.0, 0.0);
if (kind == CRASHED) {
// Use a horizontal box to contain the help text and link.
GtkWidget* help_hbox = gtk_hbox_new(FALSE, 0);
gtk_container_add(GTK_CONTAINER(vbox), help_hbox);
size_t offset = 0;
string16 help_text(l10n_util::GetStringFUTF16(IDS_SAD_TAB_HELP_MESSAGE,
string16(), &offset));
std::string help_prefix_text(UTF16ToUTF8(help_text.substr(0, offset)));
std::string help_suffix_text(UTF16ToUTF8(help_text.substr(offset)));
GtkWidget* help_prefix = MakeWhiteMarkupLabel(
"<span style=\"normal\">%s</span>", help_prefix_text);
GtkWidget* help_suffix = MakeWhiteMarkupLabel(
"<span style=\"normal\">%s</span>", help_suffix_text);
// Add the help link and text to the horizontal box.
gtk_box_pack_start(GTK_BOX(help_hbox), help_prefix, FALSE, FALSE, 0);
GtkWidget* link_alignment = gtk_alignment_new(0.5, 0.5, 0.0, 0.0);
gtk_container_add(GTK_CONTAINER(link_alignment), link);
gtk_box_pack_start(GTK_BOX(help_hbox), link_alignment, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(help_hbox), help_suffix, FALSE, FALSE, 0);
} else {
// Add just the help link to a centered alignment.
gtk_container_add(GTK_CONTAINER(help_alignment), link);
}
gtk_box_pack_start(GTK_BOX(vbox), help_alignment, FALSE, FALSE, 0);
}
gtk_widget_show_all(event_box_.get());
}
SadTabGtk::~SadTabGtk() {
event_box_.Destroy();
}
void SadTabGtk::OnLinkButtonClick(GtkWidget* sender) {
if (web_contents_ != NULL) {
GURL help_url(
kind_ == CRASHED ? chrome::kCrashReasonURL : chrome::kKillReasonURL);
OpenURLParams params(
help_url, content::Referrer(), CURRENT_TAB,
content::PAGE_TRANSITION_LINK, false);
web_contents_->OpenURL(params);
}
}
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