Notificaitons refactor step 2

ui/message_center/notification.cc

 // Copyright (c) 2013 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/message_center/notification.h"
 
+#include "base/logging.h"
+#include "ui/message_center/notification_types.h"
+
+namespace {
+unsigned g_next_serial_number_ = 0;
+}
+
 namespace message_center {
 
-NotificationItem::NotificationItem(string16 title, string16 message)
+NotificationItem::NotificationItem(const string16& title,
+                                   const string16& message)
  : title(title),
    message(message) {
 }
 
-Notification::Notification()
- : is_read(false),
-   shown_as_popup(false) {
+ButtonInfo::ButtonInfo(const string16& title)
+ : title(title) {
+}
+
+Notification::Notification(NotificationType type,
+                           const std::string& id,
+                           const string16& title,
+                           const string16& message,
+                           const string16& display_source,
+                           const std::string& extension_id,
+                           const DictionaryValue* optional_fields)
+ : type_(type),
+   id_(id),
+   title_(title),
+   message_(message),
+   display_source_(display_source),
+   extension_id_(extension_id),
+   priority_(DEFAULT_PRIORITY),
+   timestamp_(base::Time::Now()),
+   serial_number_(g_next_serial_number_++),
+   is_read_(false),
+   shown_as_popup_(false) {
+  // This can override some data members initialized to deafule values above.
+  ApplyOptionalFields(optional_fields);
 }
 
 Notification::~Notification() {
 }
 
+bool Notification::SetButtonIcon(size_t index, const gfx::ImageSkia& icon) {
+  if (index >= buttons_.size())
+    return false;
+  buttons_[index].icon = icon;
+  return true;
+}
+
+void Notification::ApplyOptionalFields(const DictionaryValue* fields) {
+  if (!fields)
+    return;
+
+  fields->GetInteger(kPriorityKey, &priority_);
+  if (fields->HasKey(kTimestampKey)) {
+    std::string time_string;
+    fields->GetString(kTimestampKey, &time_string);
+    base::Time::FromString(time_string.c_str(), &timestamp_);
+  }
+  if (fields->HasKey(kButtonOneTitleKey) ||
+      fields->HasKey(kButtonOneIconUrlKey)) {
+    string16 title;
+    string16 icon;
+    if (fields->GetString(kButtonOneTitleKey, &title) ||
+        fields->GetString(kButtonOneIconUrlKey, &icon)) {
+      buttons_.push_back(ButtonInfo(title));
+      if (fields->GetString(kButtonTwoTitleKey, &title) ||
+          fields->GetString(kButtonTwoIconUrlKey, &icon)) {
+        buttons_.push_back(ButtonInfo(title));
+      }
+    }
+  }
+  fields->GetString(kExpandedMessageKey, &expanded_message_);
+  if (fields->HasKey(kItemsKey)) {
+    const ListValue* items;
+    CHECK(fields->GetList(kItemsKey, &items));
+    for (size_t i = 0; i < items->GetSize(); ++i) {
+      string16 title;
+      string16 message;
+      const base::DictionaryValue* item;
+      items->GetDictionary(i, &item);
+      item->GetString(kItemTitleKey, &title);
+      item->GetString(kItemMessageKey, &message);
+      items_.push_back(NotificationItem(title, message));
+    }
+  }
+}
+
 }  // namespace message_center