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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/187764">187764</a></dd>
<dt>Author</dt> <dd>bdakin@apple.com</dd>
<dt>Date</dt> <dd>2015-08-03 14:27:19 -0700 (Mon, 03 Aug 2015)</dd>
</dl>

<h3>Log Message</h3>
<pre>Need WKWebView API to enable/disable link preview
https://bugs.webkit.org/show_bug.cgi?id=147573
-and corresponding-
rdar://problem/22077836

Reviewed by Dan Bernstein.

WKView implementation.
* UIProcess/API/Cocoa/WKViewPrivate.h:

New API. Call into WKView to handle Mac.
* UIProcess/API/Cocoa/WKWebView.h:
* UIProcess/API/Cocoa/WKWebView.mm:
(-[WKWebView initWithFrame:configuration:]):
(-[WKWebView allowsLinkPreview]):
(-[WKWebView setAllowsLinkPreview:]):

Remove the SPI declaration from WKWebViewPrivate in order to make this API.
* UIProcess/API/Cocoa/WKWebViewPrivate.h:

Handle the Mac side.
* UIProcess/API/mac/WKView.mm:
(-[WKView viewDidMoveToWindow]):
(-[WKView initWithFrame:processPool:configuration:webView:]):
(-[WKView allowsBackForwardNavigationGestures]):
(-[WKView allowsLinkPreview]):
(-[WKView setAllowsLinkPreview:]):

Don’t register previews when link preview is prevented.
* UIProcess/ios/WKContentViewInteraction.mm:
(-[WKContentView _registerPreview]):</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebKit2ChangeLog">trunk/Source/WebKit2/ChangeLog</a></li>
<li><a href="#trunkSourceWebKit2UIProcessAPICocoaWKViewPrivateh">trunk/Source/WebKit2/UIProcess/API/Cocoa/WKViewPrivate.h</a></li>
<li><a href="#trunkSourceWebKit2UIProcessAPICocoaWKWebViewh">trunk/Source/WebKit2/UIProcess/API/Cocoa/WKWebView.h</a></li>
<li><a href="#trunkSourceWebKit2UIProcessAPICocoaWKWebViewmm">trunk/Source/WebKit2/UIProcess/API/Cocoa/WKWebView.mm</a></li>
<li><a href="#trunkSourceWebKit2UIProcessAPICocoaWKWebViewPrivateh">trunk/Source/WebKit2/UIProcess/API/Cocoa/WKWebViewPrivate.h</a></li>
<li><a href="#trunkSourceWebKit2UIProcessAPImacWKViewmm">trunk/Source/WebKit2/UIProcess/API/mac/WKView.mm</a></li>
<li><a href="#trunkSourceWebKit2UIProcessiosWKContentViewInteractionmm">trunk/Source/WebKit2/UIProcess/ios/WKContentViewInteraction.mm</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/ChangeLog (187763 => 187764)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/ChangeLog        2015-08-03 21:26:07 UTC (rev 187763)
+++ trunk/Source/WebKit2/ChangeLog        2015-08-03 21:27:19 UTC (rev 187764)
</span><span class="lines">@@ -1,3 +1,37 @@
</span><ins>+2015-08-03  Beth Dakin  &lt;bdakin@apple.com&gt;
+
+        Need WKWebView API to enable/disable link preview
+        https://bugs.webkit.org/show_bug.cgi?id=147573
+        -and corresponding-
+        rdar://problem/22077836
+
+        Reviewed by Dan Bernstein.
+
+        WKView implementation.
+        * UIProcess/API/Cocoa/WKViewPrivate.h:
+
+        New API. Call into WKView to handle Mac.
+        * UIProcess/API/Cocoa/WKWebView.h:
+        * UIProcess/API/Cocoa/WKWebView.mm:
+        (-[WKWebView initWithFrame:configuration:]):
+        (-[WKWebView allowsLinkPreview]):
+        (-[WKWebView setAllowsLinkPreview:]):
+
+        Remove the SPI declaration from WKWebViewPrivate in order to make this API.
+        * UIProcess/API/Cocoa/WKWebViewPrivate.h:
+
+        Handle the Mac side.
+        * UIProcess/API/mac/WKView.mm:
+        (-[WKView viewDidMoveToWindow]):
+        (-[WKView initWithFrame:processPool:configuration:webView:]):
+        (-[WKView allowsBackForwardNavigationGestures]):
+        (-[WKView allowsLinkPreview]):
+        (-[WKView setAllowsLinkPreview:]):
+
+        Don’t register previews when link preview is prevented.
+        * UIProcess/ios/WKContentViewInteraction.mm:
+        (-[WKContentView _registerPreview]):
+
</ins><span class="cx"> 2015-08-03  Tim Horton  &lt;timothy_horton@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         [iOS] Link previews sometimes don't hide the link highlight
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPICocoaWKViewPrivateh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/Cocoa/WKViewPrivate.h (187763 => 187764)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/Cocoa/WKViewPrivate.h        2015-08-03 21:26:07 UTC (rev 187763)
+++ trunk/Source/WebKit2/UIProcess/API/Cocoa/WKViewPrivate.h        2015-08-03 21:27:19 UTC (rev 187764)
</span><span class="lines">@@ -129,6 +129,9 @@
</span><span class="cx"> 
</span><span class="cx"> - (void)setMagnification:(double)magnification centeredAtPoint:(NSPoint)point;
</span><span class="cx"> 
</span><ins>+- (void)setAllowsLinkPreview:(BOOL)allowsLinkPreview;
+- (BOOL)allowsLinkPreview;
+
</ins><span class="cx"> - (void)saveBackForwardSnapshotForCurrentItem;
</span><span class="cx"> - (void)saveBackForwardSnapshotForItem:(WKBackForwardListItemRef)item;
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPICocoaWKWebViewh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/Cocoa/WKWebView.h (187763 => 187764)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/Cocoa/WKWebView.h        2015-08-03 21:26:07 UTC (rev 187763)
+++ trunk/Source/WebKit2/UIProcess/API/Cocoa/WKWebView.h        2015-08-03 21:27:19 UTC (rev 187764)
</span><span class="lines">@@ -231,6 +231,12 @@
</span><span class="cx"> */
</span><span class="cx"> @property (WK_NULLABLE_PROPERTY nonatomic, copy) NSString *customUserAgent WK_AVAILABLE(WK_MAC_TBA, WK_IOS_TBA);
</span><span class="cx"> 
</span><ins>+/*! @abstract A Boolean value indicating whether link preview is allowed for any
+ links inside this WKWebView.
+ @discussion The default value is NO on iOS and YES on Mac.
+ */
+@property (nonatomic) BOOL allowsLinkPreview WK_AVAILABLE(WK_MAC_TBA, WK_IOS_TBA);
+
</ins><span class="cx"> #if TARGET_OS_IPHONE
</span><span class="cx"> /*! @abstract The scroll view associated with the web view.
</span><span class="cx">  */
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPICocoaWKWebViewmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/Cocoa/WKWebView.mm (187763 => 187764)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/Cocoa/WKWebView.mm        2015-08-03 21:26:07 UTC (rev 187763)
+++ trunk/Source/WebKit2/UIProcess/API/Cocoa/WKWebView.mm        2015-08-03 21:27:19 UTC (rev 187764)
</span><span class="lines">@@ -351,7 +351,6 @@
</span><span class="cx">     [self _updateScrollViewBackground];
</span><span class="cx"> 
</span><span class="cx">     _viewportMetaTagWidth = -1;
</span><del>-    _allowsLinkPreview = YES;
</del><span class="cx"> 
</span><span class="cx">     [self _frameOrBoundsChanged];
</span><span class="cx"> 
</span><span class="lines">@@ -659,6 +658,35 @@
</span><span class="cx">     return toAPI(_page.get());
</span><span class="cx"> }
</span><span class="cx"> 
</span><ins>+- (BOOL)allowsLinkPreview
+{
+#if PLATFORM(MAC)
+    return [_wkView allowsLinkPreview];
+#elif PLATFORM(IOS)
+    return _allowsLinkPreview;
+#endif
+}
+
+- (void)setAllowsLinkPreview:(BOOL)allowsLinkPreview
+{
+#if PLATFORM(MAC)
+    [_wkView setAllowsLinkPreview:allowsLinkPreview];
+    return;
+#elif PLATFORM(IOS)
+    if (_allowsLinkPreview == allowsLinkPreview)
+        return;
+
+    _allowsLinkPreview = allowsLinkPreview;
+
+#if HAVE(LINK_PREVIEW)
+    if (_allowsLinkPreview)
+        [_contentView _registerPreview];
+    else
+        [_contentView _unregisterPreview];
+#endif // HAVE(LINK_PREVIEW)
+#endif // PLATFORM(IOS)
+}
+
</ins><span class="cx"> #pragma mark iOS-specific methods
</span><span class="cx"> 
</span><span class="cx"> #if PLATFORM(IOS)
</span><span class="lines">@@ -3029,21 +3057,8 @@
</span><span class="cx">     return (_WKWebViewPrintFormatter *)viewPrintFormatter;
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-- (BOOL)_allowsLinkPreview
-{
-    return _allowsLinkPreview;
-}
</del><ins>+#else // #if PLATFORM(IOS)
</ins><span class="cx"> 
</span><del>-- (void)_setAllowsLinkPreview:(BOOL)allowsLinkPreview
-{
-    if (_allowsLinkPreview == allowsLinkPreview)
-        return;
-
-    _allowsLinkPreview = allowsLinkPreview;
-}
-
-#else
-
</del><span class="cx"> #pragma mark - OS X-specific methods
</span><span class="cx"> 
</span><span class="cx"> - (NSColor *)_pageExtendedBackgroundColor
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPICocoaWKWebViewPrivateh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/Cocoa/WKWebViewPrivate.h (187763 => 187764)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/Cocoa/WKWebViewPrivate.h        2015-08-03 21:26:07 UTC (rev 187763)
+++ trunk/Source/WebKit2/UIProcess/API/Cocoa/WKWebViewPrivate.h        2015-08-03 21:27:19 UTC (rev 187764)
</span><span class="lines">@@ -131,9 +131,6 @@
</span><span class="cx"> 
</span><span class="cx"> @property (nonatomic, readonly) _WKWebViewPrintFormatter *_webViewPrintFormatter;
</span><span class="cx"> 
</span><del>-// Indicating whether link preview is allowed. The default value is YES.
-@property (nonatomic, getter=_allowsLinkPreview, setter=_setAllowsLinkPreview:) BOOL _allowsLinkPreview WK_AVAILABLE(NA, WK_IOS_TBA);
-
</del><span class="cx"> - (void)_beginInteractiveObscuredInsetsChange;
</span><span class="cx"> - (void)_endInteractiveObscuredInsetsChange;
</span><span class="cx"> - (void)_hideContentUntilNextUpdate;
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPImacWKViewmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/mac/WKView.mm (187763 => 187764)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/mac/WKView.mm        2015-08-03 21:26:07 UTC (rev 187763)
+++ trunk/Source/WebKit2/UIProcess/API/mac/WKView.mm        2015-08-03 21:27:19 UTC (rev 187764)
</span><span class="lines">@@ -261,6 +261,7 @@
</span><span class="cx">     BOOL _ignoresNonWheelEvents;
</span><span class="cx">     BOOL _ignoresAllEvents;
</span><span class="cx">     BOOL _allowsBackForwardNavigationGestures;
</span><ins>+    BOOL _allowsLinkPreview;
</ins><span class="cx"> 
</span><span class="cx">     RetainPtr&lt;WKViewLayoutStrategy&gt; _layoutStrategy;
</span><span class="cx">     CGSize _minimumViewSize;
</span><span class="lines">@@ -2706,7 +2707,7 @@
</span><span class="cx">         [self _accessibilityRegisterUIProcessTokens];
</span><span class="cx"> 
</span><span class="cx"> #if __MAC_OS_X_VERSION_MIN_REQUIRED &gt;= 101000
</span><del>-        if (_data-&gt;_immediateActionGestureRecognizer &amp;&amp; ![[self gestureRecognizers] containsObject:_data-&gt;_immediateActionGestureRecognizer.get()] &amp;&amp; !_data-&gt;_ignoresNonWheelEvents)
</del><ins>+        if (_data-&gt;_immediateActionGestureRecognizer &amp;&amp; ![[self gestureRecognizers] containsObject:_data-&gt;_immediateActionGestureRecognizer.get()] &amp;&amp; !_data-&gt;_ignoresNonWheelEvents &amp;&amp; _data-&gt;_allowsLinkPreview)
</ins><span class="cx">             [self addGestureRecognizer:_data-&gt;_immediateActionGestureRecognizer.get()];
</span><span class="cx"> #endif
</span><span class="cx">     } else {
</span><span class="lines">@@ -3797,6 +3798,8 @@
</span><span class="cx">     [workspaceNotificationCenter addObserver:self selector:@selector(_activeSpaceDidChange:) name:NSWorkspaceActiveSpaceDidChangeNotification object:nil];
</span><span class="cx"> 
</span><span class="cx"> #if __MAC_OS_X_VERSION_MIN_REQUIRED &gt;= 101000
</span><ins>+    _data-&gt;_allowsLinkPreview = YES;
+
</ins><span class="cx">     if (Class gestureClass = NSClassFromString(@&quot;NSImmediateActionGestureRecognizer&quot;)) {
</span><span class="cx">         _data-&gt;_immediateActionGestureRecognizer = adoptNS([(NSImmediateActionGestureRecognizer *)[gestureClass alloc] init]);
</span><span class="cx">         _data-&gt;_immediateActionController = adoptNS([[WKImmediateActionController alloc] initWithPage:*_data-&gt;_page view:self recognizer:_data-&gt;_immediateActionGestureRecognizer.get()]);
</span><span class="lines">@@ -4221,6 +4224,26 @@
</span><span class="cx">     return _data-&gt;_allowsBackForwardNavigationGestures;
</span><span class="cx"> }
</span><span class="cx"> 
</span><ins>+- (BOOL)allowsLinkPreview
+{
+    return _data-&gt;_allowsLinkPreview;
+}
+
+- (void)setAllowsLinkPreview:(BOOL)allowsLinkPreview
+{
+    if (_data-&gt;_allowsLinkPreview == allowsLinkPreview)
+        return;
+
+    _data-&gt;_allowsLinkPreview = allowsLinkPreview;
+    
+#if __MAC_OS_X_VERSION_MIN_REQUIRED &gt;= 101000
+    if (!allowsLinkPreview)
+        [self removeGestureRecognizer:_data-&gt;_immediateActionGestureRecognizer.get()];
+    else if (NSGestureRecognizer *immediateActionRecognizer = _data-&gt;_immediateActionGestureRecognizer.get())
+        [self addGestureRecognizer:immediateActionRecognizer];
+#endif
+}
+
</ins><span class="cx"> - (void)_setIgnoresAllEvents:(BOOL)ignoresAllEvents
</span><span class="cx"> {
</span><span class="cx">     _data-&gt;_ignoresAllEvents = ignoresAllEvents;
</span><span class="lines">@@ -4244,8 +4267,10 @@
</span><span class="cx"> #if __MAC_OS_X_VERSION_MIN_REQUIRED &gt;= 101000
</span><span class="cx">     if (ignoresNonWheelEvents)
</span><span class="cx">         [self removeGestureRecognizer:_data-&gt;_immediateActionGestureRecognizer.get()];
</span><del>-    else if (NSGestureRecognizer *immediateActionRecognizer = _data-&gt;_immediateActionGestureRecognizer.get())
-        [self addGestureRecognizer:immediateActionRecognizer];
</del><ins>+    else if (NSGestureRecognizer *immediateActionRecognizer = _data-&gt;_immediateActionGestureRecognizer.get()) {
+        if (_data-&gt;_allowsLinkPreview)
+            [self addGestureRecognizer:immediateActionRecognizer];
+    }
</ins><span class="cx"> #endif
</span><span class="cx"> }
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessiosWKContentViewInteractionmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/ios/WKContentViewInteraction.mm (187763 => 187764)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/ios/WKContentViewInteraction.mm        2015-08-03 21:26:07 UTC (rev 187763)
+++ trunk/Source/WebKit2/UIProcess/ios/WKContentViewInteraction.mm        2015-08-03 21:27:19 UTC (rev 187764)
</span><span class="lines">@@ -3211,6 +3211,9 @@
</span><span class="cx"> 
</span><span class="cx"> - (void)_registerPreview
</span><span class="cx"> {
</span><ins>+    if (!_webView.allowsLinkPreview)
+        return;
+
</ins><span class="cx">     _previewItemController = adoptNS([[UIPreviewItemController alloc] initWithView:self]);
</span><span class="cx">     [_previewItemController setDelegate:self];
</span><span class="cx">     _previewGestureRecognizer = _previewItemController.get().presentationGestureRecognizer;
</span></span></pre>
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