Bug 1722322 - Implement LargestContentfulPaint r=emilio

Spec: https://w3c.github.io/largest-contentful-paint Differential Revision: https://phabricator.services.mozilla.com/D151079
2023-11-02 17:04:47 +00:00
parent a048b4f7a6
commit cacfa492a8
30 changed files with 1079 additions and 52 deletions
--- a/layout/base/PresShell.cpp
+++ b/layout/base/PresShell.cpp
@@ -11,6 +11,8 @@
 #include "Units.h"
 #include "mozilla/dom/FontFaceSet.h"
 #include "mozilla/dom/ElementBinding.h"
+#include "mozilla/dom/LargestContentfulPaint.h"
+#include "mozilla/dom/PerformanceMainThread.h"
 #include "mozilla/ArrayUtils.h"
 #include "mozilla/Attributes.h"
 #include "mozilla/AutoRestore.h"
@@ -11839,6 +11841,13 @@ void PresShell::EndPaint() {
      }
      return CallState::Continue;
    });
+
+    if (nsPresContext* presContext = GetPresContext()) {
+      if (PerformanceMainThread* perf =
+              presContext->GetPerformanceMainThread()) {
+        perf->FinalizeLCPEntriesForText();
+      }
+    }
  }
 }