/// <summary>
/// Private helper function (formerly in SaveSnapshotZip) to make it easier to call with different inputs
/// </summary>
private static void SaveSnapshotFromElement(int?focusedElementId, A11yFileMode mode, Contexts.ElementContext ec, Package package, A11yElement root)
{
var json = JsonConvert.SerializeObject(root, Formatting.Indented);
using (MemoryStream mStrm = new MemoryStream(Encoding.UTF8.GetBytes(json)))
{
AddStream(package, mStrm, elementFileName);
}
if (ec.DataContext.Screenshot != null)
{
using (MemoryStream mStrm = new MemoryStream())
{
ec.DataContext.Screenshot.Save(mStrm, System.Drawing.Imaging.ImageFormat.Png);
mStrm.Seek(0, SeekOrigin.Begin);
AddStream(package, mStrm, screenshotFileName);
}
}
var meta = new SnapshotMetaInfo(mode, RuleRunner.RuleVersion, focusedElementId, ec.DataContext.ScreenshotElementId);
var jsonMeta = JsonConvert.SerializeObject(meta, Formatting.Indented);
using (MemoryStream mStrm = new MemoryStream(Encoding.UTF8.GetBytes(jsonMeta)))
{
AddStream(package, mStrm, metadataFileName);
}
}
/// <summary>
/// Consctructor
/// </summary>
/// <param name="el">The element that was selected when the file was saved</param>
/// <param name="bmp">Actual screenshot</param>
/// <param name="synthesizedBmp">Synthesized ("yellow box") bitmap</param>
/// <param name="settings">Metadata about the snapshot</param>
public LoadActionParts(A11yElement el, Bitmap bmp, Bitmap synthesizedBmp, SnapshotMetaInfo settings)
{
this.Element = el;
this.Bmp = bmp;
this.SynthesizedBmp = synthesizedBmp;
this.MetaInfo = settings;
}
/// <summary>
/// Extract snapshot file
/// </summary>
/// <param name="path"></param>
/// <returns></returns>
internal static LoadActionParts LoadSnapshotZip(string path)
{
using (FileStream str = File.Open(path, FileMode.Open, FileAccess.Read))
using (Package package = ZipPackage.Open(str, FileMode.Open, FileAccess.Read))
{
var parts = package.GetParts();
var elementPart = (from p in parts where p.Uri.OriginalString == "/" + SaveAction.elementFileName select p.GetStream()).First();
A11yElement element = A11yElement.FromStream(elementPart);
elementPart.Close();
Bitmap bmp;
try
{
var bmpPart = (from p in parts where p.Uri.OriginalString == "/" + SaveAction.screenshotFileName select p.GetStream()).First();
bmp = LoadBmp(bmpPart);
bmpPart.Close();
}
catch (InvalidOperationException e) // Gets thrown if screenshot doesn't exist in file
{
e.ReportException();
bmp = null;
}
var metadataPart = (from p in parts where p.Uri.OriginalString == "/" + SaveAction.metadataFileName select p.GetStream()).First();
SnapshotMetaInfo meta = SnapshotMetaInfo.DeserializeFromStream(metadataPart);
metadataPart.Close();
var selectedElement = element.FindDescendant(k => k.UniqueId == meta.ScreenshotElementId);
return(new LoadActionParts(element, bmp, selectedElement.SynthesizeBitmapFromElements(), meta));
}
}
/// <summary>
/// Private helper function (formerly in SaveSnapshotZip) to make it easier to call with different inputs
/// </summary>
private static void SaveSnapshotFromElement(int?focusedElementId, A11yFileMode mode, Dictionary <SnapshotMetaPropertyName, object> otherProperties, CompletenessMode completenessMode, Contexts.ElementContext ec, Package package, A11yElement root)
{
var json = JsonConvert.SerializeObject(root, Formatting.Indented);
using (MemoryStream mStrm = new MemoryStream(Encoding.UTF8.GetBytes(json)))
{
AddStream(package, mStrm, elementFileName);
}
if (completenessMode == CompletenessMode.Full && ec.DataContext.Screenshot != null)
{
using (MemoryStream mStrm = new MemoryStream())
{
ec.DataContext.Screenshot.Save(mStrm, System.Drawing.Imaging.ImageFormat.Png);
mStrm.Seek(0, SeekOrigin.Begin);
AddStream(package, mStrm, screenshotFileName);
}
}
var meta = new SnapshotMetaInfo(mode, SuiteFactory.GetRuleVersion(), focusedElementId, ec.DataContext.ScreenshotElementId, otherProperties);
var jsonMeta = JsonConvert.SerializeObject(meta, Formatting.Indented);
using (MemoryStream mStrm = new MemoryStream(Encoding.UTF8.GetBytes(jsonMeta)))
{
AddStream(package, mStrm, metatdataFileName);
}
}
private static Dictionary <SnapshotMetaPropertyName, object> GetDeserializedProperties(Dictionary <SnapshotMetaPropertyName, object> inputProperties)
{
SnapshotMetaInfo info = new SnapshotMetaInfo(A11yFileMode.Contrast, "Test", 0, 0, inputProperties);
var text = JsonConvert.SerializeObject(info);
using (var testStream = new MemoryStream(System.Text.Encoding.UTF8.GetBytes(text)))
{
SnapshotMetaInfo metaInfo = SnapshotMetaInfo.DeserializeFromStream(testStream);
return(metaInfo.OtherProperties);
}
}
/// <summary>
/// Extract snapshot file
/// </summary>
/// <param name="path"></param>
/// <returns></returns>
internal static LoadActionParts LoadSnapshotZip(string path)
{
using (FileStream str = File.Open(path, FileMode.Open, FileAccess.Read))
using (Package package = ZipPackage.Open(str, FileMode.Open, FileAccess.Read))
{
var parts = package.GetParts();
var elementPart = (from p in parts where p.Uri.OriginalString == "/" + SaveAction.elementFileName select p.GetStream()).First();
A11yElement element = A11yElement.FromStream(elementPart);
elementPart.Close();
Bitmap bmp;
try
{
var bmpPart = (from p in parts where p.Uri.OriginalString == "/" + SaveAction.screenshotFileName select p.GetStream()).First();
bmp = LoadBmp(bmpPart);
bmpPart.Close();
}
catch (InvalidOperationException e) // Gets thrown if screenshot doesn't exist in file
{
e.ReportException();
bmp = null;
}
var metadataPart = (from p in parts where p.Uri.OriginalString == "/" + SaveAction.metadataFileName select p.GetStream()).First();
SnapshotMetaInfo meta = SnapshotMetaInfo.DeserializeFromStream(metadataPart);
metadataPart.Close();
IReadOnlyDictionary <int, CustomProperty> CustomProperties;
try
{
var customPropertiesPart = (from p in parts where p.Uri.OriginalString == "/" + SaveAction.customPropsFileName select p.GetStream()).First();
CustomProperties = LoadCustomProperties(customPropertiesPart);
customPropertiesPart.Close();
}
#pragma warning disable CA1031 // Do not catch general exception types: specific handlers placed in conditional below
catch (Exception e)
#pragma warning restore CA1031 // Do not catch general exception types: specific handlers placed in conditional below
{
if (!(e is InvalidOperationException)) // An expected exception thrown when file does not exist, such as in old a11ytest files
{
e.ReportException();
}
CustomProperties = null;
}
var selectedElement = element.FindDescendant(k => k.UniqueId == meta.ScreenshotElementId);
return(new LoadActionParts(element, bmp, selectedElement.SynthesizeBitmapFromElements(), meta));
}
}
private static Dictionary <SnapshotMetaPropertyName, object> GetDeserializedProperties(Dictionary <SnapshotMetaPropertyName, object> inputProperties)
{
using (ShimsContext.Create())
{
SnapshotMetaInfo info = new SnapshotMetaInfo(A11yFileMode.Contrast, "Test", 0, 0, inputProperties);
var text = JsonConvert.SerializeObject(info);
ShimStreamReader.AllInstances.ReadToEnd = (_) => { return(text); };
using (var testStream = new MemoryStream())
{
SnapshotMetaInfo metaInfo = SnapshotMetaInfo.DeserializeFromStream(testStream);
return(metaInfo.OtherProperties);
}
}
}
