components/dom_distiller/core/article_entry.cc

   1 // Copyright 2013 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 "components/dom_distiller/core/article_entry.h"
   6
   7 #include "base/logging.h"
   8 #include "components/dom_distiller/core/article_attachments_data.h"
   9 #include "sync/api/sync_change.h"
  10
  11 using sync_pb::EntitySpecifics;
  12 using sync_pb::ArticlePage;
  13 using sync_pb::ArticleSpecifics;
  14
  15 namespace dom_distiller {
  16
  17 bool IsEntryPageValid(const ArticleEntryPage& page) { return page.has_url(); }
  18
  19 bool IsEntryValid(const ArticleEntry& entry) {
  20   if (!entry.has_entry_id())
  21     return false;
  22   for (int i = 0; i < entry.pages_size(); ++i) {
  23     if (!IsEntryPageValid(entry.pages(i)))
  24       return false;
  25   }
  26   return true;
  27 }
  28
  29 bool AreEntriesEqual(const ArticleEntry& left, const ArticleEntry& right) {
  30   DCHECK(IsEntryValid(left));
  31   DCHECK(IsEntryValid(right));
  32   return left.SerializeAsString() == right.SerializeAsString();
  33 }
  34
  35 ArticleEntry EntryFromSpecifics(const EntitySpecifics& specifics) {
  36   DCHECK(specifics.has_article());
  37   const ArticleSpecifics& article_specifics = specifics.article();
  38   ArticleEntry entry = article_specifics;
  39   DCHECK(IsEntryValid(entry));
  40   return entry;
  41 }
  42
  43 EntitySpecifics SpecificsFromEntry(const ArticleEntry& entry) {
  44   DCHECK(IsEntryValid(entry));
  45   EntitySpecifics specifics;
  46   *specifics.mutable_article() = entry;
  47   return specifics;
  48 }
  49
  50 ArticleEntry GetEntryFromChange(const syncer::SyncChange& change) {
  51   DCHECK(change.IsValid());
  52   DCHECK(change.sync_data().IsValid());
  53   return EntryFromSpecifics(change.sync_data().GetSpecifics());
  54 }
  55
  56 std::string GetEntryIdFromSyncData(const syncer::SyncData& data) {
  57   const EntitySpecifics& entity = data.GetSpecifics();
  58   DCHECK(entity.has_article());
  59   const ArticleSpecifics& specifics = entity.article();
  60   DCHECK(specifics.has_entry_id());
  61   return specifics.entry_id();
  62 }
  63
  64 syncer::SyncData CreateLocalData(const ArticleEntry& entry) {
  65   EntitySpecifics specifics = SpecificsFromEntry(entry);
  66   const std::string& entry_id = entry.entry_id();
  67   return syncer::SyncData::CreateLocalDataWithAttachments(
  68       entry_id, entry_id, specifics, GetAttachmentIds(entry.attachments()));
  69 }
  70
  71 }  // namespace dom_distiller