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// Copyright (c) 2011 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/views/sad_tab_view.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/google/google_util.h"
#include "chrome/browser/tab_contents/tab_contents.h"
#include "chrome/common/url_constants.h"
#include "content/browser/tab_contents/tab_contents_delegate.h"
#include "grit/generated_resources.h"
#include "grit/locale_settings.h"
#include "grit/theme_resources.h"
#include "third_party/skia/include/effects/SkGradientShader.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/canvas_skia.h"
#include "ui/gfx/size.h"
#include "ui/gfx/skia_util.h"
static const int kSadTabOffset = -64;
static const int kIconTitleSpacing = 20;
static const int kTitleMessageSpacing = 15;
static const int kMessageBottomMargin = 20;
static const float kMessageSize = 0.65f;
static const SkColor kTitleColor = SK_ColorWHITE;
static const SkColor kMessageColor = SK_ColorWHITE;
static const SkColor kLinkColor = SK_ColorWHITE;
static const SkColor kCrashBackgroundColor = SkColorSetRGB(35, 48, 64);
static const SkColor kCrashBackgroundEndColor = SkColorSetRGB(35, 48, 64);
// TODO(gspencer): update these colors when the UI team has picked
// official versions. See http://crosbug.com/10711.
static const SkColor kKillBackgroundColor = SkColorSetRGB(57, 48, 88);
static const SkColor kKillBackgroundEndColor = SkColorSetRGB(57, 48, 88);
// Font size correction.
#if defined(CROS_FONTS_USING_BCI)
static const int kTitleFontSizeDelta = 1;
static const int kMessageFontSizeDelta = 0;
#else
static const int kTitleFontSizeDelta = 2;
static const int kMessageFontSizeDelta = 1;
#endif
// static
SkBitmap* SadTabView::sad_tab_bitmap_ = NULL;
gfx::Font* SadTabView::title_font_ = NULL;
gfx::Font* SadTabView::message_font_ = NULL;
std::wstring SadTabView::title_;
std::wstring SadTabView::message_;
int SadTabView::title_width_;
SadTabView::SadTabView(TabContents* tab_contents, Kind kind)
: tab_contents_(tab_contents),
learn_more_link_(NULL),
kind_(kind) {
DCHECK(tab_contents);
InitClass(kind);
if (tab_contents != NULL) {
learn_more_link_ =
new views::Link(UTF16ToWide(l10n_util::GetStringUTF16(IDS_LEARN_MORE)));
learn_more_link_->SetFont(*message_font_);
learn_more_link_->SetNormalColor(kLinkColor);
learn_more_link_->SetController(this);
AddChildView(learn_more_link_);
}
}
void SadTabView::OnPaint(gfx::Canvas* canvas) {
SkPaint paint;
SkSafeUnref(paint.setShader(
gfx::CreateGradientShader(
0,
height(),
kind_ == CRASHED ? kCrashBackgroundColor : kKillBackgroundColor,
kind_ == CRASHED ?
kCrashBackgroundEndColor : kKillBackgroundEndColor)));
paint.setStyle(SkPaint::kFill_Style);
canvas->AsCanvasSkia()->drawRectCoords(
0, 0, SkIntToScalar(width()), SkIntToScalar(height()), paint);
canvas->DrawBitmapInt(*sad_tab_bitmap_, icon_bounds_.x(), icon_bounds_.y());
canvas->DrawStringInt(WideToUTF16Hack(title_), *title_font_, kTitleColor,
title_bounds_.x(), title_bounds_.y(),
title_bounds_.width(), title_bounds_.height(),
gfx::Canvas::TEXT_ALIGN_CENTER);
canvas->DrawStringInt(WideToUTF16Hack(message_), *message_font_,
kMessageColor, message_bounds_.x(), message_bounds_.y(),
message_bounds_.width(), message_bounds_.height(),
gfx::Canvas::MULTI_LINE);
if (learn_more_link_ != NULL)
learn_more_link_->SetBounds(link_bounds_.x(), link_bounds_.y(),
link_bounds_.width(), link_bounds_.height());
}
void SadTabView::Layout() {
int icon_width = sad_tab_bitmap_->width();
int icon_height = sad_tab_bitmap_->height();
int icon_x = (width() - icon_width) / 2;
int icon_y = ((height() - icon_height) / 2) + kSadTabOffset;
icon_bounds_.SetRect(icon_x, icon_y, icon_width, icon_height);
int title_x = (width() - title_width_) / 2;
int title_y = icon_bounds_.bottom() + kIconTitleSpacing;
int title_height = title_font_->GetHeight();
title_bounds_.SetRect(title_x, title_y, title_width_, title_height);
gfx::CanvasSkia cc(0, 0, true);
int message_width = static_cast<int>(width() * kMessageSize);
int message_height = 0;
cc.SizeStringInt(WideToUTF16Hack(message_), *message_font_, &message_width,
&message_height, gfx::Canvas::MULTI_LINE);
int message_x = (width() - message_width) / 2;
int message_y = title_bounds_.bottom() + kTitleMessageSpacing;
message_bounds_.SetRect(message_x, message_y, message_width, message_height);
if (learn_more_link_ != NULL) {
gfx::Size sz = learn_more_link_->GetPreferredSize();
gfx::Insets insets = learn_more_link_->GetInsets();
link_bounds_.SetRect((width() - sz.width()) / 2,
message_bounds_.bottom() + kTitleMessageSpacing -
insets.top(), sz.width(), sz.height());
}
}
void SadTabView::LinkActivated(views::Link* source, int event_flags) {
if (tab_contents_ != NULL && source == learn_more_link_) {
GURL help_url =
google_util::AppendGoogleLocaleParam(GURL(kind_ == CRASHED ?
chrome::kCrashReasonURL :
chrome::kKillReasonURL));
WindowOpenDisposition disposition(CURRENT_TAB);
#if defined(OS_CHROMEOS)
if (tab_contents_->delegate() &&
tab_contents_->delegate()->IsPopup(tab_contents_)) {
// Popup windows are generally too small to effectively show help,
// so open the help content in a new foregreound tab.
disposition = NEW_FOREGROUND_TAB;
}
#endif
tab_contents_->OpenURL(help_url, GURL(), disposition, PageTransition::LINK);
}
}
// static
void SadTabView::InitClass(Kind kind) {
static bool initialized = false;
if (!initialized) {
ResourceBundle& rb = ResourceBundle::GetSharedInstance();
title_font_ = new gfx::Font(
rb.GetFont(ResourceBundle::BaseFont).DeriveFont(kTitleFontSizeDelta,
gfx::Font::BOLD));
message_font_ = new gfx::Font(
rb.GetFont(ResourceBundle::BaseFont).DeriveFont(kMessageFontSizeDelta));
sad_tab_bitmap_ = rb.GetBitmapNamed(
kind == CRASHED ? IDR_SAD_TAB : IDR_KILLED_TAB);
title_ = UTF16ToWide(l10n_util::GetStringUTF16(
kind == CRASHED ? IDS_SAD_TAB_TITLE : IDS_KILLED_TAB_TITLE));
title_width_ = title_font_->GetStringWidth(WideToUTF16Hack(title_));
message_ = UTF16ToWide(l10n_util::GetStringUTF16(
kind == CRASHED ? IDS_SAD_TAB_MESSAGE : IDS_KILLED_TAB_MESSAGE));
initialized = true;
}
}
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