Attachment 357746 Details for Bug 192821 – Patch

[patch] Patch

bug-192821-20181219160629.patch (text/plain), 10.89 KB, created by Benjamin Poulain on 2018-12-19 16:06:30 PST

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Creator: Benjamin Poulain

Created: 2018-12-19 16:06:30 PST

Size: 10.89 KB

patch

obsolete

>Subversion Revision: 239366
>diff --git a/Source/WebKitLegacy/mac/ChangeLog b/Source/WebKitLegacy/mac/ChangeLog
>index e24389c31e7c7067ffe45bc6410bb4a5fe419ada..f20d796358dd41a7d928010b1db88f2e822bdc62 100644
>--- a/Source/WebKitLegacy/mac/ChangeLog
>+++ b/Source/WebKitLegacy/mac/ChangeLog
>@@ -1,3 +1,25 @@
>+2018-12-18  Benjamin Poulain  <benjamin@webkit.org>
>+
>+        <rdar://problem/46194315> macOS: WebKit1 does not handle occlusion changes
>+        https://bugs.webkit.org/show_bug.cgi?id=192821
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        When a window becomes occluded, the window server informs the application.
>+        This should be used to suspend any work that is not visible by the user.
>+
>+        WebKit2 handles it just fine, but WebKit1 did not handle the notification.
>+        In some cases, that lead to performance impact (see radar).
>+
>+        This patch adds an observer for the occlusion notification. I tried to stick
>+        with the same names used by WebKit2.
>+
>+        * WebView/WebView.mm:
>+        (-[WebView _isViewVisible]):
>+        (-[WebView addWindowObserversForWindow:]):
>+        (-[WebView removeWindowObservers]):
>+        (-[WebView _windowDidChangeOcclusionState:]):
>+
> 2018-12-17  Ryosuke Niwa  <rniwa@webkit.org>
> 
>         offsetLeft and offsetParent should adjust across shadow boundaries
>diff --git a/Source/WebKitLegacy/mac/WebView/WebView.mm b/Source/WebKitLegacy/mac/WebView/WebView.mm
>index 5eb9575282c1b653dcbc9aa6a47ed70c05e7d5ef..17ea0ba70429901042602eefd8b8d34e84761b05 100644
>--- a/Source/WebKitLegacy/mac/WebView/WebView.mm
>+++ b/Source/WebKitLegacy/mac/WebView/WebView.mm
>@@ -4668,15 +4668,21 @@ IGNORE_WARNINGS_END
> 
> - (BOOL)_isViewVisible
> {
>-    if (![self window])
>+    NSWindow *window = [self window];
>+    if (!window)
>         return false;
> 
>-    if (![[self window] isVisible])
>+    if (![window isVisible])
>         return false;
> 
>     if ([self isHiddenOrHasHiddenAncestor])
>         return false;
> 
>+#if !PLATFORM(IOS_FAMILY)
>+    if (_private->windowOcclusionDetectionEnabled && (window.occlusionState & NSWindowOcclusionStateVisible) != NSWindowOcclusionStateVisible)
>+        return false;
>+#endif
>+
>     return true;
> }
> 
>@@ -5065,6 +5071,18 @@ static Vector<String> toStringVector(NSArray* patterns)
>     }
> }
> 
>+#if !PLATFORM(IOS_FAMILY)
>+- (BOOL)windowOcclusionDetectionEnabled
>+{
>+    return _private->windowOcclusionDetectionEnabled;
>+}
>+
>+- (void)setWindowOcclusionDetectionEnabled:(BOOL)flag
>+{
>+    _private->windowOcclusionDetectionEnabled = flag;
>+}
>+#endif
>+
> - (void)_setPaginationBehavesLikeColumns:(BOOL)behavesLikeColumns
> {
>     Page* page = core(self);
>@@ -6000,22 +6018,26 @@ static NSString * const backingPropertyOldScaleFactorKey = @"NSBackingPropertyOl
> - (void)addWindowObserversForWindow:(NSWindow *)window
> {
>     if (window) {
>-        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(windowKeyStateChanged:)
>+        NSNotificationCenter *defaultNotificationCenter = [NSNotificationCenter defaultCenter];
>+
>+        [defaultNotificationCenter addObserver:self selector:@selector(windowKeyStateChanged:)
>             name:NSWindowDidBecomeKeyNotification object:window];
>-        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(windowKeyStateChanged:)
>+        [defaultNotificationCenter addObserver:self selector:@selector(windowKeyStateChanged:)
>             name:NSWindowDidResignKeyNotification object:window];
>-        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowWillOrderOnScreen:)
>+        [defaultNotificationCenter addObserver:self selector:@selector(_windowWillOrderOnScreen:)
>             name:NSWindowWillOrderOnScreenNotification object:window];
>-        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowWillOrderOffScreen:)
>+        [defaultNotificationCenter addObserver:self selector:@selector(_windowWillOrderOffScreen:)
>             name:NSWindowWillOrderOffScreenNotification object:window];
>-        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowDidChangeBackingProperties:)
>+        [defaultNotificationCenter addObserver:self selector:@selector(_windowDidChangeBackingProperties:)
>             name:windowDidChangeBackingPropertiesNotification object:window];
>-        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowDidChangeScreen:)
>+        [defaultNotificationCenter addObserver:self selector:@selector(_windowDidChangeScreen:)
>             name:NSWindowDidChangeScreenNotification object:window];
>-        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowVisibilityChanged:) 
>+        [defaultNotificationCenter addObserver:self selector:@selector(_windowVisibilityChanged:)
>             name:NSWindowDidMiniaturizeNotification object:window];
>-        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowVisibilityChanged:)
>+        [defaultNotificationCenter addObserver:self selector:@selector(_windowVisibilityChanged:)
>             name:NSWindowDidDeminiaturizeNotification object:window];
>+        [defaultNotificationCenter addObserver:self selector:@selector(_windowDidChangeOcclusionState:)
>+            name:NSWindowDidChangeOcclusionStateNotification object:window];
>         [_private->windowVisibilityObserver startObserving:window];
>     }
> }
>@@ -6024,22 +6046,26 @@ static NSString * const backingPropertyOldScaleFactorKey = @"NSBackingPropertyOl
> {
>     NSWindow *window = [self window];
>     if (window) {
>-        [[NSNotificationCenter defaultCenter] removeObserver:self
>+        NSNotificationCenter *defaultNotificationCenter = [NSNotificationCenter defaultCenter];
>+
>+        [defaultNotificationCenter removeObserver:self
>             name:NSWindowDidBecomeKeyNotification object:window];
>-        [[NSNotificationCenter defaultCenter] removeObserver:self
>+        [defaultNotificationCenter removeObserver:self
>             name:NSWindowDidResignKeyNotification object:window];
>-        [[NSNotificationCenter defaultCenter] removeObserver:self
>+        [defaultNotificationCenter removeObserver:self
>             name:NSWindowWillOrderOnScreenNotification object:window];
>-        [[NSNotificationCenter defaultCenter] removeObserver:self
>+        [defaultNotificationCenter removeObserver:self
>             name:NSWindowWillOrderOffScreenNotification object:window];
>-        [[NSNotificationCenter defaultCenter] removeObserver:self
>+        [defaultNotificationCenter removeObserver:self
>             name:windowDidChangeBackingPropertiesNotification object:window];
>-        [[NSNotificationCenter defaultCenter] removeObserver:self
>+        [defaultNotificationCenter removeObserver:self
>             name:NSWindowDidChangeScreenNotification object:window];
>-        [[NSNotificationCenter defaultCenter] removeObserver:self
>+        [defaultNotificationCenter removeObserver:self
>             name:NSWindowDidMiniaturizeNotification object:window];
>-        [[NSNotificationCenter defaultCenter] removeObserver:self
>+        [defaultNotificationCenter removeObserver:self
>             name:NSWindowDidDeminiaturizeNotification object:window];
>+        [defaultNotificationCenter removeObserver:self
>+            name:NSWindowDidChangeOcclusionStateNotification object:window];
>         [_private->windowVisibilityObserver stopObserving:window];
>     }
> }
>@@ -6190,6 +6216,12 @@ static NSString * const backingPropertyOldScaleFactorKey = @"NSBackingPropertyOl
> 
>     _private->page->setDeviceScaleFactor(newBackingScaleFactor);
> }
>+
>+- (void)_windowDidChangeOcclusionState:(NSNotification *)notification
>+{
>+    [self _updateVisibilityState];
>+}
>+
> #else
> - (void)_wakWindowScreenScaleChanged:(NSNotification *)notification
> {
>diff --git a/Source/WebKitLegacy/mac/WebView/WebViewData.h b/Source/WebKitLegacy/mac/WebView/WebViewData.h
>index da555b9ca504c9e8c4615f08638a810b6dc1ad7a..c77f6ed15b0b7cdf76887441ed864e55715293de 100644
>--- a/Source/WebKitLegacy/mac/WebView/WebViewData.h
>+++ b/Source/WebKitLegacy/mac/WebView/WebViewData.h
>@@ -211,6 +211,7 @@ private:
>     std::unique_ptr<WebCore::TextIndicatorWindow> textIndicatorWindow;
>     BOOL hasInitializedLookupObserver;
>     RetainPtr<WebWindowVisibilityObserver> windowVisibilityObserver;
>+    BOOL windowOcclusionDetectionEnabled;
>     RetainPtr<NSEvent> pressureEvent;
> #endif // PLATFORM(MAC)
> 
>diff --git a/Source/WebKitLegacy/mac/WebView/WebViewData.mm b/Source/WebKitLegacy/mac/WebView/WebViewData.mm
>index a74834abb0b8f8263ed5adcf682543618f2d6a5c..8b49782b6bce18dcdb57355bbee4434b68895dec 100644
>--- a/Source/WebKitLegacy/mac/WebView/WebViewData.mm
>+++ b/Source/WebKitLegacy/mac/WebView/WebViewData.mm
>@@ -183,6 +183,10 @@ void WebViewLayerFlushScheduler::layerFlushCallback()
>     usesPageCache = YES;
>     shouldUpdateWhileOffscreen = YES;
> 
>+#if !PLATFORM(IOS_FAMILY)
>+    windowOcclusionDetectionEnabled = YES;
>+#endif
>+
>     zoomMultiplier = 1;
>     zoomsTextOnly = NO;
> 
>diff --git a/Source/WebKitLegacy/mac/WebView/WebViewPrivate.h b/Source/WebKitLegacy/mac/WebView/WebViewPrivate.h
>index a8be2f6d360996cc52594c438e3b9b0d24dbec5f..299fe677f2a7a6bdb3632e3b55f8f46cccfac9c8 100644
>--- a/Source/WebKitLegacy/mac/WebView/WebViewPrivate.h
>+++ b/Source/WebKitLegacy/mac/WebView/WebViewPrivate.h
>@@ -852,6 +852,11 @@ Could be worth adding to the API.
> - (WebPageVisibilityState)_visibilityState;
> - (void)_setVisibilityState:(WebPageVisibilityState)visibilityState isInitialState:(BOOL)isInitialState;
> 
>+#if !TARGET_OS_IPHONE
>+- (BOOL)windowOcclusionDetectionEnabled;
>+- (void)setWindowOcclusionDetectionEnabled:(BOOL)flag;
>+#endif
>+
> // Whether the column-break-{before,after} properties are respected instead of the
> // page-break-{before,after} properties.
> - (void)_setPaginationBehavesLikeColumns:(BOOL)behavesLikeColumns;
>diff --git a/Tools/ChangeLog b/Tools/ChangeLog
>index 201a7fcca42ba4832da5f256e606e1f08afd6592..e6d4d15ad172bfe4569b31748d203672413a0d3f 100644
>--- a/Tools/ChangeLog
>+++ b/Tools/ChangeLog
>@@ -1,3 +1,13 @@
>+2018-12-18  Benjamin Poulain  <benjamin@webkit.org>
>+
>+        <rdar://problem/46194315> macOS: WebKit1 does not handle occlusion changes
>+        https://bugs.webkit.org/show_bug.cgi?id=192821
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        * DumpRenderTree/mac/DumpRenderTree.mm:
>+        (createWebViewAndOffscreenWindow):
>+
> 2018-12-18  David Quesada  <david_quesada@apple.com>
> 
>         REGRESSION: [iOS] API test TestWebKitAPI._WKDownload.OriginatingWebView is a flaky failure
>diff --git a/Tools/DumpRenderTree/mac/DumpRenderTree.mm b/Tools/DumpRenderTree/mac/DumpRenderTree.mm
>index 3cb77ff6909e86abfd02e78f5517ef683945e205..de9d28744c19b578802eeac8a3a170d81497589b 100644
>--- a/Tools/DumpRenderTree/mac/DumpRenderTree.mm
>+++ b/Tools/DumpRenderTree/mac/DumpRenderTree.mm
>@@ -724,6 +724,7 @@ WebView *createWebViewAndOffscreenWindow()
>     [WebView registerURLSchemeAsLocal:@"feedsearch"];
> 
> #if PLATFORM(MAC)
>+    [webView setWindowOcclusionDetectionEnabled:NO];
>     [WebView _setFontWhitelist:fontWhitelist()];
> #endif
>

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