keyword_hint_view.cc revision d0247b1b59f9c528cb6df88b4f2b9afaf80d181e 
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/views/location_bar/keyword_hint_view.h"
6
7#include <vector>
8
9#include "base/logging.h"
10#include "base/strings/utf_string_conversions.h"
11#include "chrome/app/chrome_command_ids.h"
12#include "chrome/browser/profiles/profile.h"
13#include "chrome/browser/search_engines/template_url_service.h"
14#include "chrome/browser/search_engines/template_url_service_factory.h"
15#include "chrome/browser/ui/views/location_bar/location_bar_view.h"
16#include "grit/generated_resources.h"
17#include "grit/theme_resources.h"
18#include "ui/base/l10n/l10n_util.h"
19#include "ui/base/resource/resource_bundle.h"
20#include "ui/gfx/canvas.h"
21#include "ui/views/controls/image_view.h"
22#include "ui/views/controls/label.h"
23
24
25KeywordHintView::KeywordHintView(Profile* profile,
26                                 const gfx::FontList& font_list,
27                                 int font_y_offset,
28                                 SkColor text_color,
29                                 SkColor background_color)
30    : profile_(profile),
31      tab_image_(new views::ImageView()) {
32  leading_label_ =
33      CreateLabel(font_list, font_y_offset, text_color, background_color);
34  tab_image_->SetImage(
35      ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed(
36          IDR_OMNIBOX_KEYWORD_HINT_TAB));
37  AddChildView(tab_image_);
38  trailing_label_ =
39      CreateLabel(font_list, font_y_offset, text_color, background_color);
40}
41
42KeywordHintView::~KeywordHintView() {
43}
44
45void KeywordHintView::SetKeyword(const string16& keyword) {
46  keyword_ = keyword;
47  if (keyword_.empty())
48    return;
49  DCHECK(profile_);
50  TemplateURLService* url_service =
51      TemplateURLServiceFactory::GetForProfile(profile_);
52  if (!url_service)
53    return;
54
55  std::vector<size_t> content_param_offsets;
56  bool is_extension_keyword;
57  string16 short_name(
58      url_service->GetKeywordShortName(keyword, &is_extension_keyword));
59  int message_id = is_extension_keyword ?
60      IDS_OMNIBOX_EXTENSION_KEYWORD_HINT : IDS_OMNIBOX_KEYWORD_HINT;
61  const string16 keyword_hint = l10n_util::GetStringFUTF16(
62      message_id, string16(), short_name, &content_param_offsets);
63  DCHECK_EQ(2U, content_param_offsets.size());
64  leading_label_->SetText(
65      keyword_hint.substr(0, content_param_offsets.front()));
66  trailing_label_->SetText(keyword_hint.substr(content_param_offsets.front()));
67}
68
69gfx::Size KeywordHintView::GetPreferredSize() {
70  // Height will be ignored by the LocationBarView.
71  return gfx::Size(leading_label_->GetPreferredSize().width() +
72                       tab_image_->GetPreferredSize().width() +
73                       trailing_label_->GetPreferredSize().width(),
74                   0);
75}
76
77gfx::Size KeywordHintView::GetMinimumSize() {
78  // Height will be ignored by the LocationBarView.
79  return tab_image_->GetPreferredSize();
80}
81
82void KeywordHintView::Layout() {
83  int tab_width = tab_image_->GetPreferredSize().width();
84  bool show_labels = (width() != tab_width);
85  gfx::Size leading_size(leading_label_->GetPreferredSize());
86  leading_label_->SetBounds(0, 0, show_labels ? leading_size.width() : 0,
87                            leading_size.height());
88  tab_image_->SetBounds(leading_label_->bounds().right(), 0, tab_width,
89                        height());
90  gfx::Size trailing_size(trailing_label_->GetPreferredSize());
91  trailing_label_->SetBounds(tab_image_->bounds().right(), 0,
92                             show_labels ? trailing_size.width() : 0,
93                             trailing_size.height());
94}
95
96views::Label* KeywordHintView::CreateLabel(const gfx::FontList& font_list,
97                                           int font_y_offset,
98                                           SkColor text_color,
99                                           SkColor background_color) {
100  views::Label* label = new views::Label(string16(), font_list);
101  label->set_border(views::Border::CreateEmptyBorder(font_y_offset, 0, 0, 0));
102  label->SetEnabledColor(text_color);
103  label->SetBackgroundColor(background_color);
104  AddChildView(label);
105  return label;
106}
107