/// <summary>
/// アイテム用のページに移動する.
/// </summary>
/// <param name="reason">理由</param>
/// <param name="item">ページに表示する手描きアイテム</param>
private void NavigateToItemPage(CanvasPageNavigationReason reason, CanvasItem item)
{
var nav = new CanvasPageNavigation()
{
Reason = reason,
Item = item,
};
this.Frame.Navigate(typeof(CanvasPage), nav.Serialize());
}
/// <summary>
/// 手描き入力アイテムを削除する.
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
public async Task RemoveItemAsync(CanvasItem item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
await item.RemoveAsync();
this.itemsCore.Remove(item);
this.itemsDataContainer.Values.Remove(item.InternalName);
}
/// <summary>
/// 外部に保存した手描き入力を読み込む.
/// </summary>
/// <param name="sourceArchive"></param>
/// <returns></returns>
public static async Task ImportAsync(System.IO.Compression.ZipArchive sourceArchive)
{
if (sourceArchive == null)
{
throw new ArgumentNullException("sourceArchive");
}
var workdir = await ApplicationData.Current.TemporaryFolder.CreateFolderAsync("ItemImport", CreationCollisionOption.ReplaceExisting);
await ZipArchiveHelper.ExtractFromFileAsync(sourceArchive, workdir);
var itemsDir = await workdir.GetFoldersAsync();
foreach (var itemDir in itemsDir)
{
var item = new CanvasItem();
if (!await item.SaveAsync())
{
continue;
}
var propertyFile = (await workdir.TryGetItemAsync(String.Format(PropertyEntryNameFormat, itemDir.Name))) as StorageFile;
if (propertyFile == null)
{
continue;
}
var propertyText = await FileIO.ReadTextAsync(propertyFile, Windows.Storage.Streams.UnicodeEncoding.Utf8);
item.DeserializeProperties(propertyText);
await propertyFile.DeleteAsync();
var newItemDir = await ApplicationData.Current.LocalFolder.GetFolderAsync(item.InternalName);
foreach (var file in await itemDir.GetFilesAsync())
{
await file.MoveAsync(newItemDir, file.Name, NameCollisionOption.ReplaceExisting);
}
if (!await item.LoadAsync())
{
continue;
}
await CanvasItemManager.Current.AddItemAsync(item);
}
await workdir.DeleteAsync();
}
/// <summary>
/// 手描き入力アイテムを追加する.
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
public async Task AddItemAsync(CanvasItem item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
if ((App.CurrentApp.OnLaunchedDispatcher == null) ||
App.CurrentApp.OnLaunchedDispatcher.HasThreadAccess)
{
AddItemCore(item);
}
else
{
await App.CurrentApp.OnLaunchedDispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal,
() => { AddItemCore(item); });
}
}
/// <summary>
/// 外部ファイルに保存されたアイテムを読み込む.
/// </summary>
/// <returns></returns>
private async Task ImportItemsAsync()
{
var picker = new Windows.Storage.Pickers.FileOpenPicker();
picker.FileTypeFilter.Add(".zip");
var file = await picker.PickSingleFileAsync();
if (file == null)
{
return;
}
this.ItemsChanging = true;
using (var zipArchive = await ZipArchiveHelper.CreateZipArchiveFromFileAsync(file, System.IO.Compression.ZipArchiveMode.Read))
{
await CanvasItem.ImportAsync(zipArchive);
}
this.ItemsChanging = false;
}
/// <summary>
/// 文字列から復元する.
/// </summary>
/// <param name="input">シリアライズされた文字列</param>
/// <returns></returns>
public bool Deserialize(string input)
{
JsonArray json;
if (!JsonArray.TryParse(input, out json))
{
return(false);
}
CanvasPageNavigationReason reason;
if (!Enum.TryParse(json.GetStringAt(0), out reason))
{
return(false);
}
this.Reason = reason;
this.Item = CanvasItemManager.Current.GetItemByInternalName(json.GetStringAt(1));
return(true);
}
/// <summary>
/// 管理されている手描き入力アイテムをロードする.
/// </summary>
/// <returns></returns>
public async Task LoadAllItemsAsync()
{
if (this.itemsDataContainer == null)
{
return;
}
List <string> removeList = null;
foreach (var itemData in this.itemsDataContainer.Values)
{
var item = new CanvasItem(itemData.Key)
{
DisplayName = itemData.Value as string,
};
var success = await item.LoadAsync();
if (!success)
{
if (removeList == null)
{
removeList = new List <string>();
}
removeList.Add(itemData.Key);
continue;
}
this.itemsCore.Add(item);
}
// 登録情報だけあってファイルがない物は登録解除する
if (removeList != null)
{
foreach (var rm in removeList)
{
this.itemsDataContainer.Values.Remove(rm);
}
}
}
/// <summary>
/// このページには、移動中に渡されるコンテンツを設定します。前のセッションからページを
/// 再作成する場合は、保存状態も指定されます。
/// </summary>
/// <param name="navigationParameter">このページが最初に要求されたときに
/// <see cref="Frame.Navigate(Type, Object)"/> に渡されたパラメーター値。
/// </param>
/// <param name="pageState">前のセッションでこのページによって保存された状態の
/// ディクショナリ。ページに初めてアクセスするとき、状態は null になります。</param>
protected override async void LoadState(Object navigationParameter, Dictionary <String, Object> pageState)
{
if (pageState != null)
{
if (CanvasItemManager.Current.Items.Count == 0)
{
await CanvasItemManager.Current.LoadAllItemsAsync();
}
if ((pageState[PageStateKeyHasNewTraces] as bool?).GetValueOrDefault())
{
var msg = new Windows.UI.Popups.MessageDialog(App.CurrentApp.MyResources["MessageCancelItemBecauseTerminated"]);
await msg.ShowAsync();
}
var item = CanvasItemManager.Current.GetItemByInternalName(pageState[PageStateKeyItemInternalName] as string);
if (item == null)
{
if (CanvasItemManager.Current.Items.Count != 0)
{
this.Frame.GoBack();
return;
}
else
{
item = new CanvasItem();
}
}
this.MainCanvas.Item = item;
if (GetPageStateValue(pageState, PageStateKeyEditMode, false))
{
this.MainCanvas.IsEditing = true;
}
if (GetPageStateValue(pageState, PageStateKeyEditToolPanelIsPinned, false))
{
this.editToolPanel_PinButton.IsChecked = true;
this.TopAppBar.IsOpen = true;
}
}
else
{
var nav = new CanvasPageNavigation();
if (!nav.Deserialize(navigationParameter as string))
{
this.Frame.GoBack();
return;
}
this.MainCanvas.Item = nav.Item != null ? nav.Item : new CanvasItem();
if (nav.Reason == CanvasPageNavigationReason.Play)
{
this.MainCanvas.IsEditing = false;
Play();
}
else
{
this.MainCanvas.IsEditing = true;
}
}
}
/// <summary>
/// 手描き入力アイテムを追加する.
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
private void AddItemCore(CanvasItem item)
{
this.itemsDataContainer.Values[item.InternalName] = item.DisplayName;
this.itemsCore.Add(item);
}
