WebKit2: Add API for getting snapshots

https://bugs.webkit.org/show_bug.cgi?id=51656

Reviewed by Anders Carlsson.

* Shared/API/c/WKBase.h:
* Shared/API/c/WKImage.cpp: Added.
(WKImageGetTypeID):
(WKImageCreate):
(WKImageGetSize):
* Shared/API/c/WKImage.h: Added.
* Shared/WebImage.cpp: Added.
(WebKit::WebImage::create):
(WebKit::WebImage::size):
* Shared/WebImage.h: Added.
(WebKit::WebImage::backingStore):
(WebKit::WebImage::WebImage):
(WebKit::WebImage::type):
Add a general purpose API image class.

* Shared/API/c/cg: Added.
* Shared/API/c/cg/WKImageCG.cpp: Added.
(WKImageCreateCGImage):
* Shared/API/c/cg/WKImageCG.h: Added.
Add function to convert a WKImageRef to a CGImageRef for platforms that use CG.

* Shared/API/c/WKSharedAPICast.h:
(WebKit::toFloatRect):
(WebKit::toIntSize):
(WebKit::toIntPoint):
(WebKit::toIntRect):
(WebKit::toImageOptions):
Make conversion functions that are ambiguous more explicit.

* Shared/APIObject.h:
* Shared/BackingStore.h:
(WebKit::BackingStore::isBackedBySharedMemory):
* Shared/ImageOptions.h: Added.
* Shared/UserMessageCoders.h:
(WebKit::UserMessageEncoder::baseEncode):
(WebKit::UserMessageDecoder::baseDecode):
Allow a WKImageRef to be passed in user messages.  Right now, it only
works if the image is sharable.

* UIProcess/API/C/WKPage.cpp:
(WKPageScaleWebView):
* UIProcess/WebUIClient.cpp:
(WebKit::WebUIClient::windowFrame):
Use the more explicit conversion function name.

* WebProcess/InjectedBundle/API/c/WKBundlePage.cpp:
(WKBundlePageCreateSnapshotInViewCoordinates):
(WKBundlePageCreateSnapshotInDocumentCoordinates):
* WebProcess/InjectedBundle/API/c/WKBundlePage.h:
* WebProcess/InjectedBundle/API/c/WKBundlePageOverlay.cpp:
(WKBundlePageOverlaySetNeedsDisplay):
* WebProcess/WebPage/WebPage.cpp:
(WebKit::WebPage::snapshotInViewCoordinates):
(WebKit::WebPage::snapshotInDocumentCoordinates):
Add function to take the snapshot.

* WebProcess/WebPage/WebPage.h:
* WebKit2.pro:
* WebKit2.xcodeproj/project.pbxproj:
* win/WebKit2.vcproj:
Add new files.



git-svn-id: svn://svn.chromium.org/blink/trunk@74698 bbb929c8-8fbe-4397-9dbb-9b2b20218538

1 files changed, 39 insertions, 0 deletions

diff --git a/third_party/WebKit/WebKit2/Shared/API/c/cg/WKImageCG.cpp b/third_party/WebKit/WebKit2/Shared/API/c/cg/WKImageCG.cpp
new file mode 100644
index 0000000..687415c
--- /dev/null
+++ b/third_party/WebKit/WebKit2/Shared/API/c/cg/WKImageCG.cpp
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2010 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "WKImageCG.h"
+
+#include "WKSharedAPICast.h"
+#include "WebImage.h"
+#include <WebCore/GraphicsContext.h>
+
+using namespace WebKit;
+using namespace WebCore;
+
+CGImageRef WKImageCreateCGImage(WKImageRef imageRef)
+{
+    OwnPtr<GraphicsContext> sourceContext = toImpl(imageRef)->backingStore()->createGraphicsContext();
+    return CGBitmapContextCreateImage(sourceContext->platformContext());
+}