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-rw-r--r--docshell/test/navigation/file_bug1379762-1.html32
-rw-r--r--docshell/test/navigation/file_bug1379762-2.html43
-rw-r--r--docshell/test/navigation/mochitest.ini1
-rw-r--r--docshell/test/navigation/test_sessionhistory.html4
-rw-r--r--layout/base/nsDocumentViewer.cpp15
-rw-r--r--layout/base/nsPresContext.cpp13
6 files changed, 102 insertions, 6 deletions
diff --git a/docshell/test/navigation/file_bug1379762-1.html b/docshell/test/navigation/file_bug1379762-1.html
new file mode 100644
index 000000000..e8cd8b30b
--- /dev/null
+++ b/docshell/test/navigation/file_bug1379762-1.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html lang="en">
+ <head>
+ <meta charset="utf-8">
+ <title>Bug 1379762</title>
+ </head>
+ <img srcset> <!-- This tries to add load blockers during bfcache restoration -->
+ <script>
+ onunload = null; // enable bfcache
+ opener.is(opener.testCount, 0,
+ "We should only run once; otherwise the loadCount variable makes no sense");
+ var loadCount = 0;
+ onpageshow = function() {
+ ++opener.testCount;
+ if (opener.testCount == 1) {
+ // Navigate forward and then back.
+ setTimeout(function() { location = "goback.html"; }, 0);
+ } else if (opener.testCount == 2) {
+ // Do this async so our load event gets a chance to fire if it plans to
+ // do it.
+ setTimeout(function() {
+ opener.nextTest();
+ window.close();
+ });
+ }
+ };
+ onload = function() {
+ ++loadCount;
+ opener.is(loadCount, 1, "Should only get one onload");
+ }
+ </script>
+</html>
diff --git a/docshell/test/navigation/file_bug1379762-2.html b/docshell/test/navigation/file_bug1379762-2.html
new file mode 100644
index 000000000..86033cb2e
--- /dev/null
+++ b/docshell/test/navigation/file_bug1379762-2.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="en">
+ <head>
+ <meta charset="utf-8">
+ <title>Bug 1379762</title>
+ </head>
+ <script type="text/just-data">
+ onunload = null; // enable bfcache
+ ++opener.testCount;
+ onpageshow = function(e) {
+ opener.ok(!e.persisted, "Pageshow should not be coming from bfcache " + opener.testCount);
+ }
+ if (opener.testCount == 1) {
+ onload = function () {
+ setTimeout(function() {
+ document.write(testScript);
+ }, 0);
+ }
+ } else if (opener.testCount == 2) {
+ // Do this async, just in case.
+ setTimeout(function() {
+ history.back();
+ }, 0);
+ } else if (opener.testCount == 3) {
+ // Do this async, just in case.
+ setTimeout(function() {
+ history.forward();
+ }, 0);
+ } else if (opener.testCount == 4) {
+ onload = function() {
+ opener.nextTest();
+ window.close();
+ }
+ }
+ </script>
+ <script>
+ var data = document.querySelector("script[type='text/just-data']").textContent;
+ // Store the string that does all out work in a global variable, so we can
+ // get at it later.
+ var testScript = "<script>" + data + "</" + "script>";
+ document.write(testScript);
+ </script>
+</html>
diff --git a/docshell/test/navigation/mochitest.ini b/docshell/test/navigation/mochitest.ini
index 1b5f33c7f..8cff81ad1 100644
--- a/docshell/test/navigation/mochitest.ini
+++ b/docshell/test/navigation/mochitest.ini
@@ -59,6 +59,7 @@ skip-if = (toolkit == 'android') || (!debug && (os == 'mac' || os == 'win')) # B
skip-if = (toolkit == 'android') || (debug && e10s) #too slow on Android 4.3 aws only; bug 1030403; bug 1263213 for debug e10s
[test_sessionhistory.html]
skip-if = toolkit == 'android' #RANDOM
+support-files = file_bug1379762-1.html file_bug1379762-2.html
[test_sibling-matching-parent.html]
[test_sibling-off-domain.html]
[test_triggeringprincipal_frame_nav.html]
diff --git a/docshell/test/navigation/test_sessionhistory.html b/docshell/test/navigation/test_sessionhistory.html
index 452271a41..10b0cbcaf 100644
--- a/docshell/test/navigation/test_sessionhistory.html
+++ b/docshell/test/navigation/test_sessionhistory.html
@@ -31,7 +31,9 @@ var testFiles =
"file_nested_frames.html",
"file_shiftReload_and_pushState.html",
"file_scrollRestoration.html",
- "file_bug1300461.html"
+ "file_bug1300461.html",
+ "file_bug1379762-1.html",
+ "file_bug1379762-2.html",
];
var testCount = 0; // Used by the test files.
diff --git a/layout/base/nsDocumentViewer.cpp b/layout/base/nsDocumentViewer.cpp
index 137efb3cd..7b8734928 100644
--- a/layout/base/nsDocumentViewer.cpp
+++ b/layout/base/nsDocumentViewer.cpp
@@ -1012,7 +1012,13 @@ nsDocumentViewer::LoadComplete(nsresult aStatus)
nsIDocShell *docShell = window->GetDocShell();
NS_ENSURE_TRUE(docShell, NS_ERROR_UNEXPECTED);
- docShell->GetRestoringDocument(&restoring);
+ // Unfortunately, docShell->GetRestoringDocument() might no longer be set
+ // correctly. In particular, it can be false by now if someone took it upon
+ // themselves to block onload from inside restoration and unblock it later.
+ // But we can detect the restoring case very simply: by whether our
+ // document's readyState is COMPLETE.
+ restoring = (mDocument->GetReadyStateEnum() ==
+ nsIDocument::READYSTATE_COMPLETE);
if (!restoring) {
NS_ASSERTION(mDocument->IsXULDocument() || // readyState for XUL is bogus
mDocument->GetReadyStateEnum() ==
@@ -1023,6 +1029,13 @@ nsDocumentViewer::LoadComplete(nsresult aStatus)
nsIDocument::READYSTATE_UNINITIALIZED &&
NS_IsAboutBlank(mDocument->GetDocumentURI())),
"Bad readystate");
+#ifdef DEBUG
+ bool docShellThinksWeAreRestoring;
+ docShell->GetRestoringDocument(&docShellThinksWeAreRestoring);
+ MOZ_ASSERT(!docShellThinksWeAreRestoring,
+ "How can docshell think we are restoring if we don't have a "
+ "READYSTATE_COMPLETE document?");
+#endif // DEBUG
nsCOMPtr<nsIDocument> d = mDocument;
mDocument->SetReadyStateInternal(nsIDocument::READYSTATE_COMPLETE);
diff --git a/layout/base/nsPresContext.cpp b/layout/base/nsPresContext.cpp
index 4a54a8432..3106ff386 100644
--- a/layout/base/nsPresContext.cpp
+++ b/layout/base/nsPresContext.cpp
@@ -1307,10 +1307,15 @@ nsPresContext::SetFullZoom(float aZoom)
void
nsPresContext::SetOverrideDPPX(float aDPPX)
{
- mOverrideDPPX = aDPPX;
-
- if (HasCachedStyleData()) {
- MediaFeatureValuesChanged(nsRestyleHint(0), nsChangeHint(0));
+ // SetOverrideDPPX is called during navigations, including history
+ // traversals. In that case, it's typically called with our current value,
+ // and we don't need to actually do anything.
+ if (aDPPX != mOverrideDPPX) {
+ mOverrideDPPX = aDPPX;
+
+ if (HasCachedStyleData()) {
+ MediaFeatureValuesChanged(nsRestyleHint(0), nsChangeHint(0));
+ }
}
}