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/search/search_model.h"
6
7#include "chrome/browser/ui/search/search_model_observer.h"
8#include "components/search/search.h"
9
10SearchModel::State::State()
11    : instant_support(INSTANT_SUPPORT_UNKNOWN),
12      voice_search_supported(false) {
13}
14
15SearchModel::State::State(const SearchMode& mode,
16                          InstantSupportState instant_support,
17                          bool voice_search_supported)
18    : mode(mode),
19      instant_support(instant_support),
20      voice_search_supported(voice_search_supported) {
21}
22
23bool SearchModel::State::operator==(const State& rhs) const {
24  return mode == rhs.mode && instant_support == rhs.instant_support &&
25      voice_search_supported == rhs.voice_search_supported;
26}
27
28SearchModel::SearchModel() {
29}
30
31SearchModel::~SearchModel() {
32}
33
34void SearchModel::SetState(const State& new_state) {
35  DCHECK(chrome::IsInstantExtendedAPIEnabled())
36      << "Please do not try to set the SearchModel mode without first "
37      << "checking if Search is enabled.";
38
39  if (state_ == new_state)
40    return;
41
42  const State old_state = state_;
43  state_ = new_state;
44
45  FOR_EACH_OBSERVER(SearchModelObserver, observers_,
46                    ModelChanged(old_state, state_));
47}
48
49void SearchModel::SetMode(const SearchMode& new_mode) {
50  DCHECK(chrome::IsInstantExtendedAPIEnabled())
51      << "Please do not try to set the SearchModel mode without first "
52      << "checking if Search is enabled.";
53
54  if (state_.mode == new_mode)
55    return;
56
57  const State old_state = state_;
58  state_.mode = new_mode;
59
60  FOR_EACH_OBSERVER(SearchModelObserver, observers_,
61                    ModelChanged(old_state, state_));
62}
63
64void SearchModel::SetInstantSupportState(InstantSupportState instant_support) {
65  DCHECK(chrome::IsInstantExtendedAPIEnabled())
66      << "Please do not try to set the SearchModel state without first "
67      << "checking if Search is enabled.";
68
69  if (state_.instant_support == instant_support)
70    return;
71
72  const State old_state = state_;
73  state_.instant_support = instant_support;
74  FOR_EACH_OBSERVER(SearchModelObserver, observers_,
75                    ModelChanged(old_state, state_));
76}
77
78void SearchModel::SetVoiceSearchSupported(bool supported) {
79  DCHECK(chrome::IsInstantExtendedAPIEnabled())
80      << "Please do not try to set the SearchModel state without first "
81      << "checking if Search is enabled.";
82
83  if (state_.voice_search_supported == supported)
84    return;
85
86  const State old_state = state_;
87  state_.voice_search_supported = supported;
88
89  FOR_EACH_OBSERVER(SearchModelObserver, observers_,
90                    ModelChanged(old_state, state_));
91}
92
93void SearchModel::AddObserver(SearchModelObserver* observer) {
94  observers_.AddObserver(observer);
95}
96
97void SearchModel::RemoveObserver(SearchModelObserver* observer) {
98  observers_.RemoveObserver(observer);
99}
100