[Dialogs] Set dialog message accessibilityFrame based on visible mess…

…age text (#8786)
material-components · Nov 12, 2019 · c83333f · c83333f
1 parent f791b57
commit c83333f
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/components/Dialogs/src/private/MDCAlertControllerView+Private.m b/components/Dialogs/src/private/MDCAlertControllerView+Private.m
@@ -673,6 +673,12 @@ - (void)layoutSubviews {
         CGRectGetHeight(self.bounds) - actionsScrollViewRect.size.height;
     self.contentScrollView.frame = contentScrollViewRect;
   }
+
+  CGRect messageFrameInWindow = [self convertRect:self.messageLabel.frame toView:self.window];
+  CGRect contentScrollFrameInWindow = [self convertRect:self.contentScrollView.frame
+                                                 toView:self.window];
+  CGRect visibleMessageRect = CGRectIntersection(messageFrameInWindow, contentScrollFrameInWindow);
+  self.messageLabel.accessibilityFrame = visibleMessageRect;
 }
 
 #pragma mark - Dynamic Type