/// <summary>
/// Scans the DOM for images that have not yet been properly initialized by the editor.
/// As part of the initialization, the default image settings and effects will be applied to the image.
/// </summary>
internal static void ScanAndInitializeNewImages(IBlogPostHtmlEditor currentEditor, ISupportingFileService fileService, IEditorAccount editorAccount, ContentEditor editor, Control owner, bool useDefaultTargetSettings, bool selectLastImage)
{
if (currentEditor is BlogPostHtmlEditorControl)
{
// Scanning the images and doing basic initialization is done on the UI thread.
List <NewImageInfo> newImages = ScanImages(currentEditor, editorAccount, editor, useDefaultTargetSettings);
if (newImages.Count > 0)
{
// The time-consuming initialization is done in a background thread.
ImageInitializationAsyncOperation imageInitializer = new ImageInitializationAsyncOperation(newImages, fileService, owner);
imageInitializer.Completed += new EventHandler((sender, e) =>
ProcessInitializedImages(newImages, currentEditor, editor, owner, selectLastImage));
editor.DisposeOnEditorChange(imageInitializer);
imageInitializer.Start();
}
}
}
/// <summary>
/// Scans the DOM for images that have not yet been properly initialized by the editor.
/// As part of the initialization, the default image settings and effects will be applied to the image.
/// </summary>
internal static void ScanAndInitializeNewImages(IBlogPostHtmlEditor currentEditor, ISupportingFileService fileService, IEditorAccount editorAccount, ContentEditor editor, Control owner, bool useDefaultTargetSettings, bool selectLastImage)
{
if (currentEditor is BlogPostHtmlEditorControl)
{
// Scanning the images and doing basic initialization is done on the UI thread.
List<NewImageInfo> newImages = ScanImages(currentEditor, editorAccount, editor, useDefaultTargetSettings);
if (newImages.Count > 0)
{
// The time-consuming initialization is done in a background thread.
ImageInitializationAsyncOperation imageInitializer = new ImageInitializationAsyncOperation(newImages, fileService, owner);
imageInitializer.Completed += new EventHandler((sender, e) =>
ProcessInitializedImages(newImages, currentEditor, editor, owner, selectLastImage));
editor.DisposeOnEditorChange(imageInitializer);
imageInitializer.Start();
}
}
}
private static void ProcessInitializedImages(List <NewImageInfo> newImages, IBlogPostHtmlEditor currentEditor, ContentEditor editor, Control owner, bool selectLastImage)
{
// Remove all invalid images first
List <NewImageInfo> newImagesToUpdate = new List <NewImageInfo>();
for (int i = 0; i < newImages.Count; i++)
{
NewImageInfo info = newImages[i];
if (info.Remove)
{
using (ContentEditor.EditorUndoUnit undo = new ContentEditor.EditorUndoUnit(currentEditor, true))
{
info.DisabledImageBehavior.DetachFromElement();
HTMLElementHelper.RemoveElement(info.Element);
undo.Commit();
}
}
else
{
newImagesToUpdate.Add(info);
}
}
// Queue up processing for any remaining valid images
MultiTaskHelper tasks = new MultiTaskHelper(30);
for (int i = 0; i < newImagesToUpdate.Count; i++)
{
bool lastElement = i == (newImagesToUpdate.Count - 1);
NewImageInfo info = newImagesToUpdate[i];
tasks.AddWork(delegate
{
// WinLive 214012: If the original insertion operation is undone before we get to this point make
// sure we don't attempt to update the HTML. Elements that are removed via an undo, but that we
// still hold a reference to, are put into another document whose readyState is "uninitialized".
// It's also possible that the picture has already been updated if a user undoes and redoes the
// initial insertion multiple times.
IHTMLDocument2 doc = (IHTMLDocument2)info.Element.document;
if (doc == null || doc.readyState.Equals("uninitialized", StringComparison.OrdinalIgnoreCase) ||
BlogPostImageDataList.LookupImageDataByInlineUri(editor.ImageList, info.ImageData.InlineImageFile.Uri) != null)
{
info.DisabledImageBehavior.DetachFromElement();
return;
}
using (new QuickTimer("ProcessInitializedImage"))
using (ContentEditor.EditorUndoUnit undo = new ContentEditor.EditorUndoUnit(currentEditor, true))
{
editor.ImageList.AddImage(info.ImageData);
info.Element.setAttribute("src", UrlHelper.SafeToAbsoluteUri(info.ImageData.InlineImageFile.Uri), 0);
info.Element.removeAttribute("srcDelay", 0);
// Create the decorators
ImageEditingPropertyHandler.UpdateImageSource(info.ImageInfo, info.Element, editor, new ImageInsertHandler(), ImageDecoratorInvocationSource.InitialInsert);
// Manually detach the behavior so that the image can be selected and resized.
info.DisabledImageBehavior.DetachFromElement();
if (lastElement)
{
ApplicationPerformance.EndEvent("InsertImage");
HandleNewImage((BlogPostHtmlEditorControl)currentEditor, owner, info.Element, selectLastImage);
}
undo.Commit();
if (editor.ETWProvider != null)
{
editor.ETWProvider.WriteEvent("InlinePhotoEnd");
}
}
});
}
// If there were no images to update, stop the perf timer
if (newImagesToUpdate.Count == 0)
{
ApplicationPerformance.EndEvent("InsertImage");
}
// When the editor is closing, or changing to a new blog post we need to get rid of this object
// which will then stop all the unfinished images from continuing to load.
editor.DisposeOnEditorChange(tasks);
tasks.Start();
}
private static void ProcessInitializedImages(List<NewImageInfo> newImages, IBlogPostHtmlEditor currentEditor, ContentEditor editor, Control owner, bool selectLastImage)
{
// Remove all invalid images first
List<NewImageInfo> newImagesToUpdate = new List<NewImageInfo>();
for (int i = 0; i < newImages.Count; i++)
{
NewImageInfo info = newImages[i];
if (info.Remove)
{
using (ContentEditor.EditorUndoUnit undo = new ContentEditor.EditorUndoUnit(currentEditor, true))
{
info.DisabledImageBehavior.DetachFromElement();
HTMLElementHelper.RemoveElement(info.Element);
undo.Commit();
}
}
else
{
newImagesToUpdate.Add(info);
}
}
// Queue up processing for any remaining valid images
MultiTaskHelper tasks = new MultiTaskHelper(30);
for (int i = 0; i < newImagesToUpdate.Count; i++)
{
bool lastElement = i == (newImagesToUpdate.Count - 1);
NewImageInfo info = newImagesToUpdate[i];
tasks.AddWork(delegate
{
// WinLive 214012: If the original insertion operation is undone before we get to this point make
// sure we don't attempt to update the HTML. Elements that are removed via an undo, but that we
// still hold a reference to, are put into another document whose readyState is "uninitialized".
// It's also possible that the picture has already been updated if a user undoes and redoes the
// initial insertion multiple times.
IHTMLDocument2 doc = (IHTMLDocument2)info.Element.document;
if (doc == null || doc.readyState.Equals("uninitialized", StringComparison.OrdinalIgnoreCase) ||
BlogPostImageDataList.LookupImageDataByInlineUri(editor.ImageList, info.ImageData.InlineImageFile.Uri) != null)
{
info.DisabledImageBehavior.DetachFromElement();
return;
}
using (new QuickTimer("ProcessInitializedImage"))
using (ContentEditor.EditorUndoUnit undo = new ContentEditor.EditorUndoUnit(currentEditor, true))
{
editor.ImageList.AddImage(info.ImageData);
info.Element.setAttribute("src", UrlHelper.SafeToAbsoluteUri(info.ImageData.InlineImageFile.Uri), 0);
info.Element.removeAttribute("srcDelay", 0);
// Create the decorators
ImageEditingPropertyHandler.UpdateImageSource(info.ImageInfo, info.Element, editor, new ImageInsertHandler(), ImageDecoratorInvocationSource.InitialInsert);
// Manually detach the behavior so that the image can be selected and resized.
info.DisabledImageBehavior.DetachFromElement();
if (lastElement)
{
ApplicationPerformance.EndEvent("InsertImage");
HandleNewImage((BlogPostHtmlEditorControl)currentEditor, owner, info.Element, selectLastImage);
}
undo.Commit();
if (editor.ETWProvider != null)
editor.ETWProvider.WriteEvent("InlinePhotoEnd");
}
});
}
// If there were no images to update, stop the perf timer
if (newImagesToUpdate.Count == 0)
{
ApplicationPerformance.EndEvent("InsertImage");
}
// When the editor is closing, or changing to a new blog post we need to get rid of this object
// which will then stop all the unfinished images from continuing to load.
editor.DisposeOnEditorChange(tasks);
tasks.Start();
}