app_list: Add search box and search result view for v2.

ui/app_list/search_box_model.cc

+// 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 "ui/app_list/search_box_model.h"
+
+#include "ui/app_list/search_box_model_observer.h"
+#include "ui/views/controls/textfield/textfield.h"
+
+namespace app_list {
+
+SearchBoxModel::SearchBoxModel() {
+}
+
+SearchBoxModel::~SearchBoxModel() {
+}
+
+void SearchBoxModel::SetIcon(const gfx::ImageSkia& icon) {
+  icon_ = icon;
+  FOR_EACH_OBSERVER(SearchBoxModelObserver,
+                    observers_,
+                    IconChanged());
+}
+
+void SearchBoxModel::SetHintText(const string16& hint_text) {
+  if (hint_text_ == hint_text)
+    return;
+
+  hint_text_ = hint_text;
+  FOR_EACH_OBSERVER(SearchBoxModelObserver,
+                    observers_,
+                    HintTextChanged());
+}
+
+void SearchBoxModel::SetSelectionModel(const gfx::SelectionModel& sel) {
+  if (selection_model_ == sel)
+    return;
+
+  selection_model_ = sel;
+  FOR_EACH_OBSERVER(SearchBoxModelObserver,
+                    observers_,
+                    SelectionModelChanged());
+}
+
+void SearchBoxModel::SetText(const string16& text) {
+  if (text_ == text)
+    return;
+
+  text_ = text;
+  FOR_EACH_OBSERVER(SearchBoxModelObserver,
+                    observers_,
+                    TextChanged());
+}
+
+void SearchBoxModel::AddObserver(SearchBoxModelObserver* observer) {
+  observers_.AddObserver(observer);
+}
+
+void SearchBoxModel::RemoveObserver(SearchBoxModelObserver* observer) {
+  observers_.RemoveObserver(observer);
+}
+
+}  // namespace app_list