webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 95 insertions, 0 deletions

diff --git a/Source/WebCore/style/StylePendingResources.cpp b/Source/WebCore/style/StylePendingResources.cpp
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+++ b/Source/WebCore/style/StylePendingResources.cpp
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+/*
+ * Copyright (C) 2016 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 "config.h"
+#include "StylePendingResources.h"
+
+#include "CSSCursorImageValue.h"
+#include "CachedResourceLoader.h"
+#include "ContentData.h"
+#include "CursorData.h"
+#include "CursorList.h"
+#include "Document.h"
+#include "RenderStyle.h"
+#include "SVGURIReference.h"
+#include "StyleCachedImage.h"
+#include "StyleGeneratedImage.h"
+#include "TransformFunctions.h"
+
+namespace WebCore {
+namespace Style {
+
+enum class LoadPolicy { Normal, ShapeOutside };
+static void loadPendingImage(Document& document, const StyleImage* styleImage, const Element* element, LoadPolicy loadPolicy = LoadPolicy::Normal)
+{
+    if (!styleImage || !styleImage->isPending())
+        return;
+
+    ResourceLoaderOptions options = CachedResourceLoader::defaultCachedResourceOptions();
+    options.contentSecurityPolicyImposition = element && element->isInUserAgentShadowTree() ? ContentSecurityPolicyImposition::SkipPolicyCheck : ContentSecurityPolicyImposition::DoPolicyCheck;
+
+    // FIXME: Why does shape-outside have different policy than other properties?
+    if (loadPolicy == LoadPolicy::ShapeOutside) {
+        options.mode = FetchOptions::Mode::Cors;
+        options.allowCredentials = DoNotAllowStoredCredentials;
+        options.sameOriginDataURLFlag = SameOriginDataURLFlag::Set;
+    }
+
+    const_cast<StyleImage&>(*styleImage).load(document.cachedResourceLoader(), options);
+}
+
+void loadPendingResources(RenderStyle& style, Document& document, const Element* element)
+{
+    for (auto* backgroundLayer = &style.backgroundLayers(); backgroundLayer; backgroundLayer = backgroundLayer->next())
+        loadPendingImage(document, backgroundLayer->image(), element);
+
+    for (auto* contentData = style.contentData(); contentData; contentData = contentData->next()) {
+        if (is<ImageContentData>(*contentData)) {
+            auto& styleImage = downcast<ImageContentData>(*contentData).image();
+            loadPendingImage(document, &styleImage, element);
+        }
+    }
+
+    if (auto* cursorList = style.cursors()) {
+        for (size_t i = 0; i < cursorList->size(); ++i)
+            loadPendingImage(document, cursorList->at(i).image(), element);
+    }
+
+    loadPendingImage(document, style.listStyleImage(), element);
+    loadPendingImage(document, style.borderImageSource(), element);
+    loadPendingImage(document, style.maskBoxImageSource(), element);
+
+    if (auto* reflection = style.boxReflect())
+        loadPendingImage(document, reflection->mask().image(), element);
+
+    for (auto* maskLayer = &style.maskLayers(); maskLayer; maskLayer = maskLayer->next())
+        loadPendingImage(document, maskLayer->image(), element);
+
+    if (style.shapeOutside())
+        loadPendingImage(document, style.shapeOutside()->image(), element, LoadPolicy::ShapeOutside);
+}
+
+}
+}