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authorGaming4JC <g4jc@hyperbola.info>2020-01-01 15:04:58 -0500
committerGaming4JC <g4jc@hyperbola.info>2020-01-26 15:50:07 -0500
commit32f3f8826f396fd17c1c77770d073d0abf15c904 (patch)
treea1cb100c516af764e45e485a9e7d0785818aca0f /dom/base
parenta2b56b295b8bd089b74c5d93148edafe7e6da912 (diff)
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Bug 1276438 part 2. Move the implementation of the .body setter from nsHTMLDocument to nsIDocument.
Tag UXP Issue #1344 Tag UXP Issue #252
Diffstat (limited to 'dom/base')
-rw-r--r--dom/base/nsDocument.cpp25
-rw-r--r--dom/base/nsIDocument.h2
2 files changed, 27 insertions, 0 deletions
diff --git a/dom/base/nsDocument.cpp b/dom/base/nsDocument.cpp
index 83c2e5bb7..69cbff16c 100644
--- a/dom/base/nsDocument.cpp
+++ b/dom/base/nsDocument.cpp
@@ -6556,6 +6556,31 @@ nsIDocument::GetBody()
return nullptr;
}
+void
+nsIDocument::SetBody(nsGenericHTMLElement* newBody, ErrorResult& rv)
+{
+ nsCOMPtr<Element> root = GetRootElement();
+
+ // The body element must be either a body tag or a frameset tag. And we must
+ // have a html root tag, otherwise GetBody will not return the newly set
+ // body.
+ if (!newBody ||
+ !newBody->IsAnyOfHTMLElements(nsGkAtoms::body, nsGkAtoms::frameset) ||
+ !root || !root->IsHTMLElement() ||
+ !root->IsHTMLElement(nsGkAtoms::html)) {
+ rv.Throw(NS_ERROR_DOM_HIERARCHY_REQUEST_ERR);
+ return;
+ }
+
+ // Use DOM methods so that we pass through the appropriate security checks.
+ nsCOMPtr<Element> currentBody = GetBodyElement();
+ if (currentBody) {
+ root->ReplaceChild(*newBody, *currentBody, rv);
+ } else {
+ root->AppendChild(*newBody, rv);
+ }
+}
+
Element*
nsDocument::GetTitleElement()
{
diff --git a/dom/base/nsIDocument.h b/dom/base/nsIDocument.h
index b3879c624..e44ab047e 100644
--- a/dom/base/nsIDocument.h
+++ b/dom/base/nsIDocument.h
@@ -1040,6 +1040,8 @@ public:
// Get the "body" in the sense of document.body: The first <body> or
// <frameset> that's a child of a root <html>
nsGenericHTMLElement* GetBody();
+ // Set the "body" in the sense of document.body.
+ void SetBody(nsGenericHTMLElement* aBody, mozilla::ErrorResult& rv);
/**
* Accessors to the collection of stylesheets owned by this document.