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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/views/location_bar/keyword_hint_view.h"
#include <vector>
#include "base/logging.h"
#include "base/utf_string_conversions.h"
#include "chrome/app/chrome_command_ids.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/search_engines/template_url_service.h"
#include "chrome/browser/search_engines/template_url_service_factory.h"
#include "chrome/browser/ui/views/location_bar/location_bar_view.h"
#include "grit/generated_resources.h"
#include "grit/theme_resources.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/gfx/canvas.h"
#include "ui/views/controls/label.h"
// Amount of space to offset the tab image from the top of the view by.
static const int kTabImageYOffset = 4;
// The tab key image.
static const SkBitmap* kTabButtonBitmap = NULL;
KeywordHintView::KeywordHintView(Profile* profile) : profile_(profile) {
leading_label_ = CreateLabel();
trailing_label_ = CreateLabel();
if (!kTabButtonBitmap) {
ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
kTabButtonBitmap = rb.GetBitmapNamed(IDR_LOCATION_BAR_KEYWORD_HINT_TAB);
}
}
KeywordHintView::~KeywordHintView() {
}
void KeywordHintView::SetFont(const gfx::Font& font) {
leading_label_->SetFont(font);
trailing_label_->SetFont(font);
}
void KeywordHintView::SetKeyword(const string16& keyword) {
keyword_ = keyword;
if (keyword_.empty())
return;
DCHECK(profile_);
TemplateURLService* url_service =
TemplateURLServiceFactory::GetForProfile(profile_);
if (!url_service)
return;
std::vector<size_t> content_param_offsets;
bool is_extension_keyword;
string16 short_name = url_service->GetKeywordShortName(keyword,
&is_extension_keyword);
int message_id = is_extension_keyword ?
IDS_OMNIBOX_EXTENSION_KEYWORD_HINT : IDS_OMNIBOX_KEYWORD_HINT;
const string16 keyword_hint = l10n_util::GetStringFUTF16(
message_id,
string16(),
short_name,
&content_param_offsets);
if (content_param_offsets.size() == 2) {
leading_label_->SetText(
keyword_hint.substr(0, content_param_offsets.front()));
trailing_label_->SetText(
keyword_hint.substr(content_param_offsets.front()));
} else {
// See comments on an identical NOTREACHED() in search_provider.cc.
NOTREACHED();
}
}
void KeywordHintView::OnPaint(gfx::Canvas* canvas) {
int image_x = leading_label_->visible() ? leading_label_->width() : 0;
// Since we paint the button image directly on the canvas (instead of using a
// child view), we must mirror the button's position manually if the locale
// is right-to-left.
gfx::Rect tab_button_bounds(image_x,
kTabImageYOffset,
kTabButtonBitmap->width(),
kTabButtonBitmap->height());
tab_button_bounds.set_x(GetMirroredXForRect(tab_button_bounds));
canvas->DrawBitmapInt(*kTabButtonBitmap,
tab_button_bounds.x(),
tab_button_bounds.y());
}
gfx::Size KeywordHintView::GetPreferredSize() {
// TODO(sky): currently height doesn't matter, once baseline support is
// added this should check baselines.
gfx::Size prefsize = leading_label_->GetPreferredSize();
int width = prefsize.width();
width += kTabButtonBitmap->width();
prefsize = trailing_label_->GetPreferredSize();
width += prefsize.width();
return gfx::Size(width, prefsize.height());
}
gfx::Size KeywordHintView::GetMinimumSize() {
// TODO(sky): currently height doesn't matter, once baseline support is
// added this should check baselines.
return gfx::Size(kTabButtonBitmap->width(), 0);
}
void KeywordHintView::Layout() {
// TODO(sky): baseline layout.
bool show_labels = (width() != kTabButtonBitmap->width());
leading_label_->SetVisible(show_labels);
trailing_label_->SetVisible(show_labels);
int x = 0;
gfx::Size pref;
if (show_labels) {
pref = leading_label_->GetPreferredSize();
leading_label_->SetBounds(x, 0, pref.width(), height());
x += pref.width() + kTabButtonBitmap->width();
pref = trailing_label_->GetPreferredSize();
trailing_label_->SetBounds(x, 0, pref.width(), height());
}
}
views::Label* KeywordHintView::CreateLabel() {
views::Label* label = new views::Label();
label->SetBackgroundColor(LocationBarView::GetColor(ToolbarModel::NONE,
LocationBarView::BACKGROUND));
label->SetEnabledColor(LocationBarView::GetColor(ToolbarModel::NONE,
LocationBarView::DEEMPHASIZED_TEXT));
AddChildView(label);
return label;
}
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