ui/app_list/search_box_model.cc

   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 "ui/app_list/search_box_model.h"
   6
   7 #include "base/metrics/histogram.h"
   8 #include "ui/app_list/search_box_model_observer.h"
   9
  10 namespace app_list {
  11
  12 SearchBoxModel::SearchBoxModel() {
  13 }
  14
  15 SearchBoxModel::~SearchBoxModel() {
  16 }
  17
  18 void SearchBoxModel::SetIcon(const gfx::ImageSkia& icon) {
  19   icon_ = icon;
  20   FOR_EACH_OBSERVER(SearchBoxModelObserver, observers_, IconChanged());
  21 }
  22
  23 void SearchBoxModel::SetHintText(const base::string16& hint_text) {
  24   if (hint_text_ == hint_text)
  25     return;
  26
  27   hint_text_ = hint_text;
  28   FOR_EACH_OBSERVER(SearchBoxModelObserver, observers_, HintTextChanged());
  29 }
  30
  31 void SearchBoxModel::SetSelectionModel(const gfx::SelectionModel& sel) {
  32   if (selection_model_ == sel)
  33     return;
  34
  35   selection_model_ = sel;
  36   FOR_EACH_OBSERVER(SearchBoxModelObserver,
  37                     observers_,
  38                     SelectionModelChanged());
  39 }
  40
  41 void SearchBoxModel::SetText(const base::string16& text) {
  42   if (text_ == text)
  43     return;
  44
  45   // Log that a new search has been commenced whenever the text box text
  46   // transitions from empty to non-empty.
  47   if (text_.empty() && !text.empty()) {
  48     UMA_HISTOGRAM_ENUMERATION("Apps.AppListSearchCommenced", 1, 2);
  49   }
  50   text_ = text;
  51   FOR_EACH_OBSERVER(SearchBoxModelObserver, observers_, TextChanged());
  52 }
  53
  54 void SearchBoxModel::AddObserver(SearchBoxModelObserver* observer) {
  55   observers_.AddObserver(observer);
  56 }
  57
  58 void SearchBoxModel::RemoveObserver(SearchBoxModelObserver* observer) {
  59   observers_.RemoveObserver(observer);
  60 }
  61
  62 }  // namespace app_list