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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/191606">191606</a></dd>
<dt>Author</dt> <dd>timothy_horton@apple.com</dd>
<dt>Date</dt> <dd>2015-10-26 15:51:57 -0700 (Mon, 26 Oct 2015)</dd>
</dl>

<h3>Log Message</h3>
<pre>WKView being inside WKWebView leads to weird API issues
https://bugs.webkit.org/show_bug.cgi?id=150174

Reviewed by Anders Carlsson.

* UIProcess/API/mac/WKView.mm:
(-[WKView mouseDown:]):
(-[WKView mouseDragged:]):
(-[WKView draggedImage:endedAt:operation:]):
(-[WKView draggingEntered:]):
(-[WKView draggingUpdated:]):
(-[WKView draggingExited:]):
(-[WKView prepareForDragOperation:]):
(-[WKView performDragOperation:]):
(-[WKView _hitTest:dragTypes:]):
(-[WKView initWithFrame:processPool:configuration:webView:]):
(-[WKView applicationFlags:]): Deleted.
(maybeCreateSandboxExtensionFromPasteboard): Deleted.
(createSandboxExtensionsForFileUpload): Deleted.
(-[WKView _registerDraggedTypes]): Deleted.
* UIProcess/Cocoa/WebViewImpl.h:
(WebKit::WebViewImpl::ignoresMouseDraggedEvents):
* UIProcess/Cocoa/WebViewImpl.mm:
(WebKit::WebViewImpl::setIgnoresMouseDraggedEvents):
(WebKit::WebViewImpl::draggedImage):
(WebKit::applicationFlagsForDrag):
(WebKit::WebViewImpl::draggingEntered):
(WebKit::WebViewImpl::draggingUpdated):
(WebKit::WebViewImpl::draggingExited):
(WebKit::WebViewImpl::prepareForDragOperation):
(WebKit::maybeCreateSandboxExtensionFromPasteboard):
(WebKit::createSandboxExtensionsForFileUpload):
(WebKit::WebViewImpl::performDragOperation):
(WebKit::WebViewImpl::hitTestForDragTypes):
(WebKit::WebViewImpl::registerDraggedTypes):
Move some drag-related things to WebViewImpl.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebKit2ChangeLog">trunk/Source/WebKit2/ChangeLog</a></li>
<li><a href="#trunkSourceWebKit2UIProcessAPImacWKViewmm">trunk/Source/WebKit2/UIProcess/API/mac/WKView.mm</a></li>
<li><a href="#trunkSourceWebKit2UIProcessCocoaWebViewImplh">trunk/Source/WebKit2/UIProcess/Cocoa/WebViewImpl.h</a></li>
<li><a href="#trunkSourceWebKit2UIProcessCocoaWebViewImplmm">trunk/Source/WebKit2/UIProcess/Cocoa/WebViewImpl.mm</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/ChangeLog (191605 => 191606)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/ChangeLog        2015-10-26 22:49:50 UTC (rev 191605)
+++ trunk/Source/WebKit2/ChangeLog        2015-10-26 22:51:57 UTC (rev 191606)
</span><span class="lines">@@ -1,3 +1,42 @@
</span><ins>+2015-10-26  Tim Horton  &lt;timothy_horton@apple.com&gt;
+
+        WKView being inside WKWebView leads to weird API issues
+        https://bugs.webkit.org/show_bug.cgi?id=150174
+
+        Reviewed by Anders Carlsson.
+
+        * UIProcess/API/mac/WKView.mm:
+        (-[WKView mouseDown:]):
+        (-[WKView mouseDragged:]):
+        (-[WKView draggedImage:endedAt:operation:]):
+        (-[WKView draggingEntered:]):
+        (-[WKView draggingUpdated:]):
+        (-[WKView draggingExited:]):
+        (-[WKView prepareForDragOperation:]):
+        (-[WKView performDragOperation:]):
+        (-[WKView _hitTest:dragTypes:]):
+        (-[WKView initWithFrame:processPool:configuration:webView:]):
+        (-[WKView applicationFlags:]): Deleted.
+        (maybeCreateSandboxExtensionFromPasteboard): Deleted.
+        (createSandboxExtensionsForFileUpload): Deleted.
+        (-[WKView _registerDraggedTypes]): Deleted.
+        * UIProcess/Cocoa/WebViewImpl.h:
+        (WebKit::WebViewImpl::ignoresMouseDraggedEvents):
+        * UIProcess/Cocoa/WebViewImpl.mm:
+        (WebKit::WebViewImpl::setIgnoresMouseDraggedEvents):
+        (WebKit::WebViewImpl::draggedImage):
+        (WebKit::applicationFlagsForDrag):
+        (WebKit::WebViewImpl::draggingEntered):
+        (WebKit::WebViewImpl::draggingUpdated):
+        (WebKit::WebViewImpl::draggingExited):
+        (WebKit::WebViewImpl::prepareForDragOperation):
+        (WebKit::maybeCreateSandboxExtensionFromPasteboard):
+        (WebKit::createSandboxExtensionsForFileUpload):
+        (WebKit::WebViewImpl::performDragOperation):
+        (WebKit::WebViewImpl::hitTestForDragTypes):
+        (WebKit::WebViewImpl::registerDraggedTypes):
+        Move some drag-related things to WebViewImpl.
+
</ins><span class="cx"> 2015-10-26  Anders Carlsson  &lt;andersca@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Pipe custom context menu handling through to the UIDelegate object
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPImacWKViewmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/mac/WKView.mm (191605 => 191606)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/mac/WKView.mm        2015-10-26 22:49:50 UTC (rev 191605)
+++ trunk/Source/WebKit2/UIProcess/API/mac/WKView.mm        2015-10-26 22:51:57 UTC (rev 191606)
</span><span class="lines">@@ -194,7 +194,6 @@
</span><span class="cx"> 
</span><span class="cx">     BOOL _willBecomeFirstResponderAgain;
</span><span class="cx">     NSEvent *_mouseDownEvent;
</span><del>-    BOOL _ignoringMouseDraggedEvents;
</del><span class="cx"> 
</span><span class="cx">     BOOL _hasSpellCheckerDocumentTag;
</span><span class="cx">     NSInteger _spellCheckerDocumentTag;
</span><span class="lines">@@ -1073,7 +1072,7 @@
</span><span class="cx">         return;
</span><span class="cx"> 
</span><span class="cx">     [self _setMouseDownEvent:event];
</span><del>-    _data-&gt;_ignoringMouseDraggedEvents = NO;
</del><ins>+    _data-&gt;_impl-&gt;setIgnoresMouseDraggedEvents(false);
</ins><span class="cx"> 
</span><span class="cx">     [self mouseDownInternal:event];
</span><span class="cx"> }
</span><span class="lines">@@ -1091,9 +1090,9 @@
</span><span class="cx"> {
</span><span class="cx">     if (_data-&gt;_impl-&gt;ignoresNonWheelEvents())
</span><span class="cx">         return;
</span><del>-
-    if (_data-&gt;_ignoringMouseDraggedEvents)
</del><ins>+    if (_data-&gt;_impl-&gt;ignoresMouseDraggedEvents())
</ins><span class="cx">         return;
</span><ins>+
</ins><span class="cx">     [self mouseDraggedInternal:event];
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="lines">@@ -2110,144 +2109,39 @@
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> #if ENABLE(DRAG_SUPPORT)
</span><del>-- (void)draggedImage:(NSImage *)anImage endedAt:(NSPoint)aPoint operation:(NSDragOperation)operation
</del><ins>+- (void)draggedImage:(NSImage *)image endedAt:(NSPoint)endPoint operation:(NSDragOperation)operation
</ins><span class="cx"> {
</span><del>-    NSPoint windowImageLoc = [[self window] convertScreenToBase:aPoint];
-    NSPoint windowMouseLoc = windowImageLoc;
-   
-    // Prevent queued mouseDragged events from coming after the drag and fake mouseUp event.
-    _data-&gt;_ignoringMouseDraggedEvents = YES;
-    
-    _data-&gt;_page-&gt;dragEnded(IntPoint(windowMouseLoc), globalPoint(windowMouseLoc, [self window]), operation);
</del><ins>+    _data-&gt;_impl-&gt;draggedImage(image, NSPointToCGPoint(endPoint), operation);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><del>-- (DragApplicationFlags)applicationFlags:(id &lt;NSDraggingInfo&gt;)draggingInfo
-{
-    uint32_t flags = 0;
-    if ([NSApp modalWindow])
-        flags = DragApplicationIsModal;
-    if ([[self window] attachedSheet])
-        flags |= DragApplicationHasAttachedSheet;
-    if ([draggingInfo draggingSource] == self)
-        flags |= DragApplicationIsSource;
-    if ([[NSApp currentEvent] modifierFlags] &amp; NSAlternateKeyMask)
-        flags |= DragApplicationIsCopyKeyDown;
-    return static_cast&lt;DragApplicationFlags&gt;(flags);
-}
-
</del><span class="cx"> - (NSDragOperation)draggingEntered:(id &lt;NSDraggingInfo&gt;)draggingInfo
</span><span class="cx"> {
</span><del>-    IntPoint client([self convertPoint:[draggingInfo draggingLocation] fromView:nil]);
-    IntPoint global(globalPoint([draggingInfo draggingLocation], [self window]));
-    DragData dragData(draggingInfo, client, global, static_cast&lt;DragOperation&gt;([draggingInfo draggingSourceOperationMask]), [self applicationFlags:draggingInfo]);
-
-    _data-&gt;_page-&gt;resetCurrentDragInformation();
-    _data-&gt;_page-&gt;dragEntered(dragData, [[draggingInfo draggingPasteboard] name]);
-    return NSDragOperationCopy;
</del><ins>+    return _data-&gt;_impl-&gt;draggingEntered(draggingInfo);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> - (NSDragOperation)draggingUpdated:(id &lt;NSDraggingInfo&gt;)draggingInfo
</span><span class="cx"> {
</span><del>-    IntPoint client([self convertPoint:[draggingInfo draggingLocation] fromView:nil]);
-    IntPoint global(globalPoint([draggingInfo draggingLocation], [self window]));
-    DragData dragData(draggingInfo, client, global, static_cast&lt;DragOperation&gt;([draggingInfo draggingSourceOperationMask]), [self applicationFlags:draggingInfo]);
-    _data-&gt;_page-&gt;dragUpdated(dragData, [[draggingInfo draggingPasteboard] name]);
-    
-    NSInteger numberOfValidItemsForDrop = _data-&gt;_page-&gt;currentDragNumberOfFilesToBeAccepted();
-    NSDraggingFormation draggingFormation = NSDraggingFormationNone;
-    if (_data-&gt;_page-&gt;currentDragIsOverFileInput() &amp;&amp; numberOfValidItemsForDrop &gt; 0)
-        draggingFormation = NSDraggingFormationList;
-
-    if ([draggingInfo numberOfValidItemsForDrop] != numberOfValidItemsForDrop)
-        [draggingInfo setNumberOfValidItemsForDrop:numberOfValidItemsForDrop];
-    if ([draggingInfo draggingFormation] != draggingFormation)
-        [draggingInfo setDraggingFormation:draggingFormation];
-
-    return _data-&gt;_page-&gt;currentDragOperation();
</del><ins>+    return _data-&gt;_impl-&gt;draggingUpdated(draggingInfo);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> - (void)draggingExited:(id &lt;NSDraggingInfo&gt;)draggingInfo
</span><span class="cx"> {
</span><del>-    IntPoint client([self convertPoint:[draggingInfo draggingLocation] fromView:nil]);
-    IntPoint global(globalPoint([draggingInfo draggingLocation], [self window]));
-    DragData dragData(draggingInfo, client, global, static_cast&lt;DragOperation&gt;([draggingInfo draggingSourceOperationMask]), [self applicationFlags:draggingInfo]);
-    _data-&gt;_page-&gt;dragExited(dragData, [[draggingInfo draggingPasteboard] name]);
-    _data-&gt;_page-&gt;resetCurrentDragInformation();
</del><ins>+    _data-&gt;_impl-&gt;draggingExited(draggingInfo);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> - (BOOL)prepareForDragOperation:(id &lt;NSDraggingInfo&gt;)draggingInfo
</span><span class="cx"> {
</span><del>-    return YES;
</del><ins>+    return _data-&gt;_impl-&gt;prepareForDragOperation(draggingInfo);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><del>-// FIXME: This code is more or less copied from Pasteboard::getBestURL.
-// It would be nice to be able to share the code somehow.
-static bool maybeCreateSandboxExtensionFromPasteboard(NSPasteboard *pasteboard, SandboxExtension::Handle&amp; sandboxExtensionHandle)
-{
-    NSArray *types = [pasteboard types];
-    if (![types containsObject:NSFilenamesPboardType])
-        return false;
-
-    NSArray *files = [pasteboard propertyListForType:NSFilenamesPboardType];
-    if ([files count] != 1)
-        return false;
-
-    NSString *file = [files objectAtIndex:0];
-    BOOL isDirectory;
-    if (![[NSFileManager defaultManager] fileExistsAtPath:file isDirectory:&amp;isDirectory])
-        return false;
-
-    if (isDirectory)
-        return false;
-
-    SandboxExtension::createHandle(&quot;/&quot;, SandboxExtension::ReadOnly, sandboxExtensionHandle);
-    return true;
-}
-
-static void createSandboxExtensionsForFileUpload(NSPasteboard *pasteboard, SandboxExtension::HandleArray&amp; handles)
-{
-    NSArray *types = [pasteboard types];
-    if (![types containsObject:NSFilenamesPboardType])
-        return;
-
-    NSArray *files = [pasteboard propertyListForType:NSFilenamesPboardType];
-    handles.allocate([files count]);
-    for (unsigned i = 0; i &lt; [files count]; i++) {
-        NSString *file = [files objectAtIndex:i];
-        if (![[NSFileManager defaultManager] fileExistsAtPath:file])
-            continue;
-        SandboxExtension::Handle handle;
-        SandboxExtension::createHandle(file, SandboxExtension::ReadOnly, handles[i]);
-    }
-}
-
</del><span class="cx"> - (BOOL)performDragOperation:(id &lt;NSDraggingInfo&gt;)draggingInfo
</span><span class="cx"> {
</span><del>-    IntPoint client([self convertPoint:[draggingInfo draggingLocation] fromView:nil]);
-    IntPoint global(globalPoint([draggingInfo draggingLocation], [self window]));
-    DragData dragData(draggingInfo, client, global, static_cast&lt;DragOperation&gt;([draggingInfo draggingSourceOperationMask]), [self applicationFlags:draggingInfo]);
-
-    SandboxExtension::Handle sandboxExtensionHandle;
-    bool createdExtension = maybeCreateSandboxExtensionFromPasteboard([draggingInfo draggingPasteboard], sandboxExtensionHandle);
-    if (createdExtension)
-        _data-&gt;_page-&gt;process().willAcquireUniversalFileReadSandboxExtension();
-
-    SandboxExtension::HandleArray sandboxExtensionForUpload;
-    createSandboxExtensionsForFileUpload([draggingInfo draggingPasteboard], sandboxExtensionForUpload);
-
-    _data-&gt;_page-&gt;performDragOperation(dragData, [[draggingInfo draggingPasteboard] name], sandboxExtensionHandle, sandboxExtensionForUpload);
-
-    return YES;
</del><ins>+    return _data-&gt;_impl-&gt;performDragOperation(draggingInfo);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><del>-// This code is needed to support drag and drop when the drag types cannot be matched.
-// This is the case for elements that do not place content
-// in the drag pasteboard automatically when the drag start (i.e. dragging a DIV element).
</del><span class="cx"> - (NSView *)_hitTest:(NSPoint *)point dragTypes:(NSSet *)types
</span><span class="cx"> {
</span><del>-    if ([[self superview] mouse:*point inRect:[self frame]])
-        return self;
-    return nil;
</del><ins>+    return _data-&gt;_impl-&gt;hitTestForDragTypes(NSPointToCGPoint(*point), types);
</ins><span class="cx"> }
</span><span class="cx"> #endif // ENABLE(DRAG_SUPPORT)
</span><span class="cx"> 
</span><span class="lines">@@ -2859,10 +2753,9 @@
</span><span class="cx">     _data-&gt;_page-&gt;initializeWebPage();
</span><span class="cx"> 
</span><span class="cx">     _data-&gt;_mouseDownEvent = nil;
</span><del>-    _data-&gt;_ignoringMouseDraggedEvents = NO;
</del><span class="cx">     _data-&gt;_windowOcclusionDetectionEnabled = YES;
</span><span class="cx"> 
</span><del>-    [self _registerDraggedTypes];
</del><ins>+    _data-&gt;_impl-&gt;registerDraggedTypes();
</ins><span class="cx"> 
</span><span class="cx">     self.wantsLayer = YES;
</span><span class="cx"> 
</span><span class="lines">@@ -2877,14 +2770,6 @@
</span><span class="cx">     return self;
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-- (void)_registerDraggedTypes
-{
-    NSMutableSet *types = [[NSMutableSet alloc] initWithArray:PasteboardTypes::forEditing()];
-    [types addObjectsFromArray:PasteboardTypes::forURL()];
-    [self registerForDraggedTypes:[types allObjects]];
-    [types release];
-}
-
</del><span class="cx"> #if WK_API_ENABLED
</span><span class="cx"> - (void)_setThumbnailView:(_WKThumbnailView *)thumbnailView
</span><span class="cx"> {
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessCocoaWebViewImplh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/Cocoa/WebViewImpl.h (191605 => 191606)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/Cocoa/WebViewImpl.h        2015-10-26 22:49:50 UTC (rev 191605)
+++ trunk/Source/WebKit2/UIProcess/Cocoa/WebViewImpl.h        2015-10-26 22:51:57 UTC (rev 191606)
</span><span class="lines">@@ -217,6 +217,8 @@
</span><span class="cx">     bool ignoresNonWheelEvents() const { return m_ignoresNonWheelEvents; }
</span><span class="cx">     void setIgnoresAllEvents(bool);
</span><span class="cx">     bool ignoresAllEvents() const { return m_ignoresAllEvents; }
</span><ins>+    void setIgnoresMouseDraggedEvents(bool);
+    bool ignoresMouseDraggedEvents() const { return m_ignoresMouseDraggedEvents; }
</ins><span class="cx"> 
</span><span class="cx">     void accessibilityRegisterUIProcessTokens();
</span><span class="cx"> 
</span><span class="lines">@@ -237,6 +239,17 @@
</span><span class="cx">     _WKThumbnailView *thumbnailView() const { return m_thumbnailView; }
</span><span class="cx"> #endif // WK_API_ENABLED
</span><span class="cx"> 
</span><ins>+#if ENABLE(DRAG_SUPPORT)
+    void draggedImage(NSImage *, CGPoint endPoint, NSDragOperation);
+    NSDragOperation draggingEntered(id &lt;NSDraggingInfo&gt;);
+    NSDragOperation draggingUpdated(id &lt;NSDraggingInfo&gt;);
+    void draggingExited(id &lt;NSDraggingInfo&gt;);
+    bool prepareForDragOperation(id &lt;NSDraggingInfo&gt;);
+    bool performDragOperation(id &lt;NSDraggingInfo&gt;);
+    NSView *hitTestForDragTypes(CGPoint, NSSet *types);
+    void registerDraggedTypes();
+#endif
+
</ins><span class="cx"> private:
</span><span class="cx">     WeakPtr&lt;WebViewImpl&gt; createWeakPtr() { return m_weakPtrFactory.createWeakPtr(); }
</span><span class="cx"> 
</span><span class="lines">@@ -313,6 +326,7 @@
</span><span class="cx"> 
</span><span class="cx">     bool m_ignoresNonWheelEvents { false };
</span><span class="cx">     bool m_ignoresAllEvents { false };
</span><ins>+    bool m_ignoresMouseDraggedEvents { false };
</ins><span class="cx"> 
</span><span class="cx"> #if __MAC_OS_X_VERSION_MIN_REQUIRED &gt;= 101000
</span><span class="cx">     RetainPtr&lt;WKImmediateActionController&gt; m_immediateActionController;
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessCocoaWebViewImplmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/Cocoa/WebViewImpl.mm (191605 => 191606)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/Cocoa/WebViewImpl.mm        2015-10-26 22:49:50 UTC (rev 191605)
+++ trunk/Source/WebKit2/UIProcess/Cocoa/WebViewImpl.mm        2015-10-26 22:51:57 UTC (rev 191606)
</span><span class="lines">@@ -34,6 +34,7 @@
</span><span class="cx"> #import &quot;NativeWebKeyboardEvent.h&quot;
</span><span class="cx"> #import &quot;NativeWebMouseEvent.h&quot;
</span><span class="cx"> #import &quot;PageClient.h&quot;
</span><ins>+#import &quot;PasteboardTypes.h&quot;
</ins><span class="cx"> #import &quot;StringUtilities.h&quot;
</span><span class="cx"> #import &quot;WKFullScreenWindowController.h&quot;
</span><span class="cx"> #import &quot;WKImmediateActionController.h&quot;
</span><span class="lines">@@ -42,15 +43,18 @@
</span><span class="cx"> #import &quot;WKWebView.h&quot;
</span><span class="cx"> #import &quot;WebEditCommandProxy.h&quot;
</span><span class="cx"> #import &quot;WebPageProxy.h&quot;
</span><ins>+#import &quot;WebProcessProxy.h&quot;
</ins><span class="cx"> #import &quot;_WKThumbnailViewInternal.h&quot;
</span><span class="cx"> #import &lt;HIToolbox/CarbonEventsCore.h&gt;
</span><span class="cx"> #import &lt;WebCore/AXObjectCache.h&gt;
</span><span class="cx"> #import &lt;WebCore/DataDetectorsSPI.h&gt;
</span><span class="cx"> #import &lt;WebCore/DictionaryLookup.h&gt;
</span><ins>+#import &lt;WebCore/DragData.h&gt;
</ins><span class="cx"> #import &lt;WebCore/KeypressCommand.h&gt;
</span><span class="cx"> #import &lt;WebCore/LookupSPI.h&gt;
</span><span class="cx"> #import &lt;WebCore/NSImmediateActionGestureRecognizerSPI.h&gt;
</span><span class="cx"> #import &lt;WebCore/NSWindowSPI.h&gt;
</span><ins>+#import &lt;WebCore/PlatformEventFactoryMac.h&gt;
</ins><span class="cx"> #import &lt;WebCore/SoftLinking.h&gt;
</span><span class="cx"> #import &lt;WebCore/ViewState.h&gt;
</span><span class="cx"> #import &lt;WebCore/WebActionDisablingCALayerDelegate.h&gt;
</span><span class="lines">@@ -1451,6 +1455,11 @@
</span><span class="cx">     setIgnoresNonWheelEvents(ignoresAllEvents);
</span><span class="cx"> }
</span><span class="cx"> 
</span><ins>+void WebViewImpl::setIgnoresMouseDraggedEvents(bool ignoresMouseDraggedEvents)
+{
+    m_ignoresMouseDraggedEvents = ignoresMouseDraggedEvents;
+}
+
</ins><span class="cx"> void WebViewImpl::accessibilityRegisterUIProcessTokens()
</span><span class="cx"> {
</span><span class="cx">     // Initialize remote accessibility when the window connection has been established.
</span><span class="lines">@@ -1647,6 +1656,159 @@
</span><span class="cx"> }
</span><span class="cx"> #endif // WK_API_ENABLED
</span><span class="cx"> 
</span><ins>+#if ENABLE(DRAG_SUPPORT)
+void WebViewImpl::draggedImage(NSImage *image, CGPoint endPoint, NSDragOperation operation)
+{
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored &quot;-Wdeprecated-declarations&quot;
+    NSPoint windowImageLoc = [m_view.window convertScreenToBase:NSPointFromCGPoint(endPoint)];
+#pragma clang diagnostic pop
+    NSPoint windowMouseLoc = windowImageLoc;
+
+    // Prevent queued mouseDragged events from coming after the drag and fake mouseUp event.
+    m_ignoresMouseDraggedEvents = true;
+
+    m_page.dragEnded(WebCore::IntPoint(windowMouseLoc), WebCore::globalPoint(windowMouseLoc, m_view.window), operation);
+}
+
+static WebCore::DragApplicationFlags applicationFlagsForDrag(NSView *view, id &lt;NSDraggingInfo&gt; draggingInfo)
+{
+    uint32_t flags = 0;
+    if ([NSApp modalWindow])
+        flags = WebCore::DragApplicationIsModal;
+    if (view.window.attachedSheet)
+        flags |= WebCore::DragApplicationHasAttachedSheet;
+    if (draggingInfo.draggingSource == view)
+        flags |= WebCore::DragApplicationIsSource;
+    if ([NSApp currentEvent].modifierFlags &amp; NSAlternateKeyMask)
+        flags |= WebCore::DragApplicationIsCopyKeyDown;
+    return static_cast&lt;WebCore::DragApplicationFlags&gt;(flags);
+
+}
+
+NSDragOperation WebViewImpl::draggingEntered(id &lt;NSDraggingInfo&gt; draggingInfo)
+{
+    WebCore::IntPoint client([m_view convertPoint:draggingInfo.draggingLocation fromView:nil]);
+    WebCore::IntPoint global(WebCore::globalPoint(draggingInfo.draggingLocation, m_view.window));
+    WebCore::DragData dragData(draggingInfo, client, global, static_cast&lt;WebCore::DragOperation&gt;(draggingInfo.draggingSourceOperationMask), applicationFlagsForDrag(m_view, draggingInfo));
+
+    m_page.resetCurrentDragInformation();
+    m_page.dragEntered(dragData, draggingInfo.draggingPasteboard.name);
+    return NSDragOperationCopy;
+}
+
+NSDragOperation WebViewImpl::draggingUpdated(id &lt;NSDraggingInfo&gt; draggingInfo)
+{
+    WebCore::IntPoint client([m_view convertPoint:draggingInfo.draggingLocation fromView:nil]);
+    WebCore::IntPoint global(WebCore::globalPoint(draggingInfo.draggingLocation, m_view.window));
+    WebCore::DragData dragData(draggingInfo, client, global, static_cast&lt;WebCore::DragOperation&gt;(draggingInfo.draggingSourceOperationMask), applicationFlagsForDrag(m_view, draggingInfo));
+    m_page.dragUpdated(dragData, draggingInfo.draggingPasteboard.name);
+
+    NSInteger numberOfValidItemsForDrop = m_page.currentDragNumberOfFilesToBeAccepted();
+    NSDraggingFormation draggingFormation = NSDraggingFormationNone;
+    if (m_page.currentDragIsOverFileInput() &amp;&amp; numberOfValidItemsForDrop &gt; 0)
+        draggingFormation = NSDraggingFormationList;
+
+    if (draggingInfo.numberOfValidItemsForDrop != numberOfValidItemsForDrop)
+        [draggingInfo setNumberOfValidItemsForDrop:numberOfValidItemsForDrop];
+    if (draggingInfo.draggingFormation != draggingFormation)
+        [draggingInfo setDraggingFormation:draggingFormation];
+
+    return m_page.currentDragOperation();
+}
+
+void WebViewImpl::draggingExited(id &lt;NSDraggingInfo&gt; draggingInfo)
+{
+    WebCore::IntPoint client([m_view convertPoint:draggingInfo.draggingLocation fromView:nil]);
+    WebCore::IntPoint global(WebCore::globalPoint(draggingInfo.draggingLocation, m_view.window));
+    WebCore::DragData dragData(draggingInfo, client, global, static_cast&lt;WebCore::DragOperation&gt;(draggingInfo.draggingSourceOperationMask), applicationFlagsForDrag(m_view, draggingInfo));
+    m_page.dragExited(dragData, draggingInfo.draggingPasteboard.name);
+    m_page.resetCurrentDragInformation();
+}
+
+bool WebViewImpl::prepareForDragOperation(id &lt;NSDraggingInfo&gt;)
+{
+    return true;
+}
+
+// FIXME: This code is more or less copied from Pasteboard::getBestURL.
+// It would be nice to be able to share the code somehow.
+static bool maybeCreateSandboxExtensionFromPasteboard(NSPasteboard *pasteboard, SandboxExtension::Handle&amp; sandboxExtensionHandle)
+{
+    NSArray *types = pasteboard.types;
+    if (![types containsObject:NSFilenamesPboardType])
+        return false;
+
+    NSArray *files = [pasteboard propertyListForType:NSFilenamesPboardType];
+    if (files.count != 1)
+        return false;
+
+    NSString *file = [files objectAtIndex:0];
+    BOOL isDirectory;
+    if (![[NSFileManager defaultManager] fileExistsAtPath:file isDirectory:&amp;isDirectory])
+        return false;
+
+    if (isDirectory)
+        return false;
+
+    SandboxExtension::createHandle(&quot;/&quot;, SandboxExtension::ReadOnly, sandboxExtensionHandle);
+    return true;
+}
+
+static void createSandboxExtensionsForFileUpload(NSPasteboard *pasteboard, SandboxExtension::HandleArray&amp; handles)
+{
+    NSArray *types = pasteboard.types;
+    if (![types containsObject:NSFilenamesPboardType])
+        return;
+
+    NSArray *files = [pasteboard propertyListForType:NSFilenamesPboardType];
+    handles.allocate(files.count);
+    for (unsigned i = 0; i &lt; files.count; i++) {
+        NSString *file = [files objectAtIndex:i];
+        if (![[NSFileManager defaultManager] fileExistsAtPath:file])
+            continue;
+        SandboxExtension::Handle handle;
+        SandboxExtension::createHandle(file, SandboxExtension::ReadOnly, handles[i]);
+    }
+}
+
+bool WebViewImpl::performDragOperation(id &lt;NSDraggingInfo&gt; draggingInfo)
+{
+    WebCore::IntPoint client([m_view convertPoint:draggingInfo.draggingLocation fromView:nil]);
+    WebCore::IntPoint global(WebCore::globalPoint(draggingInfo.draggingLocation, m_view.window));
+    WebCore::DragData dragData(draggingInfo, client, global, static_cast&lt;WebCore::DragOperation&gt;(draggingInfo.draggingSourceOperationMask), applicationFlagsForDrag(m_view, draggingInfo));
+
+    SandboxExtension::Handle sandboxExtensionHandle;
+    bool createdExtension = maybeCreateSandboxExtensionFromPasteboard(draggingInfo.draggingPasteboard, sandboxExtensionHandle);
+    if (createdExtension)
+        m_page.process().willAcquireUniversalFileReadSandboxExtension();
+
+    SandboxExtension::HandleArray sandboxExtensionForUpload;
+    createSandboxExtensionsForFileUpload(draggingInfo.draggingPasteboard, sandboxExtensionForUpload);
+
+    m_page.performDragOperation(dragData, draggingInfo.draggingPasteboard.name, sandboxExtensionHandle, sandboxExtensionForUpload);
+
+    return true;
+}
+
+NSView *WebViewImpl::hitTestForDragTypes(CGPoint point, NSSet *types)
+{
+    // This code is needed to support drag and drop when the drag types cannot be matched.
+    // This is the case for elements that do not place content
+    // in the drag pasteboard automatically when the drag start (i.e. dragging a DIV element).
+    if ([[m_view superview] mouse:NSPointFromCGPoint(point) inRect:[m_view frame]])
+        return m_view;
+    return nil;
+}
+
+void WebViewImpl::registerDraggedTypes()
+{
+    auto types = adoptNS([[NSMutableSet alloc] initWithArray:PasteboardTypes::forEditing()]);
+    [types addObjectsFromArray:PasteboardTypes::forURL()];
+    [m_view registerForDraggedTypes:[types allObjects]];
+}
+#endif // ENABLE(DRAG_SUPPORT)
+
</ins><span class="cx"> } // namespace WebKit
</span><span class="cx"> 
</span><span class="cx"> #endif // PLATFORM(MAC)
</span></span></pre>
</div>
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