mirror of
https://bitbucket.org/chromiumembedded/cef
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361dbc0785
git-svn-id: https://chromiumembedded.googlecode.com/svn/branches/1547@1353 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
90 lines
3.3 KiB
Diff
90 lines
3.3 KiB
Diff
Index: render_widget_host_view_mac.mm
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===================================================================
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--- render_widget_host_view_mac.mm (revision 214871)
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+++ render_widget_host_view_mac.mm (working copy)
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@@ -4,6 +4,7 @@
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#include "content/browser/renderer_host/render_widget_host_view_mac.h"
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+#import <objc/runtime.h>
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#include <QuartzCore/QuartzCore.h>
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#include "base/bind.h"
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@@ -129,6 +130,29 @@
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return modifiers;
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}
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+// This method will return YES for OS X versions 10.7.3 and later, and NO
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+// otherwise.
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+// Used to prevent a crash when building with the 10.7 SDK and accessing the
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+// notification below. See: http://crbug.com/260595.
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+static BOOL SupportsBackingPropertiesChangedNotification() {
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+ // windowDidChangeBackingProperties: method has been added to the
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+ // NSWindowDelegate protocol in 10.7.3, at the same time as the
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+ // NSWindowDidChangeBackingPropertiesNotification notification was added.
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+ // If the protocol contains this method description, the notification should
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+ // be supported as well.
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+ Protocol* windowDelegateProtocol = NSProtocolFromString(@"NSWindowDelegate");
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+ struct objc_method_description methodDescription =
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+ protocol_getMethodDescription(
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+ windowDelegateProtocol,
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+ @selector(windowDidChangeBackingProperties:),
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+ NO,
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+ YES);
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+
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+ // If the protocol does not contain the method, the returned method
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+ // description is {NULL, NULL}
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+ return methodDescription.name != NULL || methodDescription.types != NULL;
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+}
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+
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static float ScaleFactor(NSView* view) {
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return ui::GetScaleFactorScale(ui::GetScaleFactorForNativeView(view));
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}
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@@ -2395,13 +2419,21 @@
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NSNotificationCenter* notificationCenter =
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[NSNotificationCenter defaultCenter];
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+
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+ // Backing property notifications crash on 10.6 when building with the 10.7
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+ // SDK, see http://crbug.com/260595.
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+ static BOOL supportsBackingPropertiesNotification =
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+ SupportsBackingPropertiesChangedNotification();
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+
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if (oldWindow) {
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+ if (supportsBackingPropertiesNotification) {
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+ [notificationCenter
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+ removeObserver:self
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+ name:NSWindowDidChangeBackingPropertiesNotification
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+ object:oldWindow];
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+ }
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[notificationCenter
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removeObserver:self
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- name:NSWindowDidChangeBackingPropertiesNotification
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- object:oldWindow];
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- [notificationCenter
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- removeObserver:self
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name:NSWindowDidMoveNotification
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object:oldWindow];
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[notificationCenter
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@@ -2410,13 +2442,15 @@
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object:oldWindow];
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}
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if (newWindow) {
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+ if (supportsBackingPropertiesNotification) {
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+ [notificationCenter
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+ addObserver:self
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+ selector:@selector(windowDidChangeBackingProperties:)
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+ name:NSWindowDidChangeBackingPropertiesNotification
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+ object:newWindow];
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+ }
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[notificationCenter
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addObserver:self
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- selector:@selector(windowDidChangeBackingProperties:)
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- name:NSWindowDidChangeBackingPropertiesNotification
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- object:newWindow];
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- [notificationCenter
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- addObserver:self
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selector:@selector(windowChangedGlobalFrame:)
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name:NSWindowDidMoveNotification
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object:newWindow];
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