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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_image_ImageFactory_h
+#define mozilla_image_ImageFactory_h
+
+#include "nsCOMPtr.h"
+#include "nsProxyRelease.h"
+
+class nsCString;
+class nsIRequest;
+
+namespace mozilla {
+namespace image {
+
+class Image;
+class ImageURL;
+class MultipartImage;
+class ProgressTracker;
+
+class ImageFactory
+{
+public:
+ /**
+ * Registers vars with Preferences. Should only be called on the main thread.
+ */
+ static void Initialize();
+
+ /**
+ * Creates a new image with the given properties.
+ * Can be called on or off the main thread.
+ *
+ * @param aRequest The associated request.
+ * @param aProgressTracker A status tracker for the image to use.
+ * @param aMimeType The mimetype of the image.
+ * @param aURI The URI of the image.
+ * @param aIsMultiPart Whether the image is part of a multipart request.
+ * @param aInnerWindowId The window this image belongs to.
+ */
+ static already_AddRefed<Image> CreateImage(nsIRequest* aRequest,
+ ProgressTracker* aProgressTracker,
+ const nsCString& aMimeType,
+ ImageURL* aURI,
+ bool aIsMultiPart,
+ uint32_t aInnerWindowId);
+ /**
+ * Creates a new image which isn't associated with a URI or loaded through
+ * the usual image loading mechanism.
+ *
+ * @param aMimeType The mimetype of the image.
+ */
+ static already_AddRefed<Image>
+ CreateAnonymousImage(const nsCString& aMimeType);
+
+ /**
+ * Creates a new multipart/x-mixed-replace image wrapper, and initializes it
+ * with the first part. Subsequent parts should be passed to the existing
+ * MultipartImage via MultipartImage::BeginTransitionToPart().
+ *
+ * @param aFirstPart An image containing the first part of the multipart
+ * stream.
+ * @param aProgressTracker A progress tracker for the multipart image.
+ */
+ static already_AddRefed<MultipartImage>
+ CreateMultipartImage(Image* aFirstPart, ProgressTracker* aProgressTracker);
+
+private:
+ // Factory functions that create specific types of image containers.
+ static already_AddRefed<Image>
+ CreateRasterImage(nsIRequest* aRequest,
+ ProgressTracker* aProgressTracker,
+ const nsCString& aMimeType,
+ ImageURL* aURI,
+ uint32_t aImageFlags,
+ uint32_t aInnerWindowId);
+
+ static already_AddRefed<Image>
+ CreateVectorImage(nsIRequest* aRequest,
+ ProgressTracker* aProgressTracker,
+ const nsCString& aMimeType,
+ ImageURL* aURI,
+ uint32_t aImageFlags,
+ uint32_t aInnerWindowId);
+
+ // This is a static factory class, so disallow instantiation.
+ virtual ~ImageFactory() = 0;
+};
+
+} // namespace image
+} // namespace mozilla
+
+#endif // mozilla_image_ImageFactory_h