1 年之前 · fc1f037cd1
--- a/Tests/LibWeb/Text/expected/HTML/Window-opener.txt
+++ b/Tests/LibWeb/Text/expected/HTML/Window-opener.txt
@@ -0,0 +1,5 @@
 
															+  window.opener initial value: null
														
 
															+window.opener after setting to "test": test
														
 
															+iframe contentWindow.opener initial value is the current window object: true
														
 
															+iframe contentWindow.opener after setting to null: null
														
 
															+iframe contentWindow.opener after setting to "test": test
														
--- a/Tests/LibWeb/Text/input/HTML/Window-opener.html
+++ b/Tests/LibWeb/Text/input/HTML/Window-opener.html
@@ -0,0 +1,20 @@
 
															+<!DOCTYPE html>
														
 
															+<script src="../include.js"></script>
														
 
															+<iframe name="testFrame"></iframe>
														
 
															+<script>    
														
 
															+    asyncTest(done => {
														
 
															+        println(`window.opener initial value: ${window.opener}`);
														
 
															+        window.opener = "test";
														
 
															+        println(`window.opener after setting to "test": ${window.opener}`);
														
 
															+        const frame = document.querySelector("iframe");
														
 
															+        frame.onload = () => {
														
 
															+            println(`iframe contentWindow.opener initial value is the current window object: ${frame.contentWindow.opener === window}`);
														
 
															+            frame.contentWindow.opener = null;
														
 
															+            println(`iframe contentWindow.opener after setting to null: ${frame.contentWindow.opener}`);
														
 
															+            frame.contentWindow.opener = "test";
														
 
															+            println(`iframe contentWindow.opener after setting to "test": ${frame.contentWindow.opener}`);
														
 
															+            done();
														
 
															+        }
														
 
															+        window.open("about:srcdoc", "testFrame");
														
 
															+    });
														
 
															+</script>
														
--- a/Userland/Libraries/LibWeb/HTML/Window.cpp
+++ b/Userland/Libraries/LibWeb/HTML/Window.cpp
@@ -946,6 +946,41 @@ JS::GCPtr<WindowProxy const> Window::top() const
 
															     return navigable->top_level_traversable()->active_window_proxy();
														
 
															 }
														
 
															+// https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-opener
														
 
															+JS::GCPtr<WindowProxy const> Window::opener() const
														
 
															+{
														
 
															+    // 1. Let current be this's browsing context.
														
 
															+    auto const* current = browsing_context();
														
 
															+
														
 
															+    // 2. If current is null, then return null.
														
 
															+    if (!current)
														
 
															+        return {};
														
 
															+
														
 
															+    // 3. If current's opener browsing context is null, then return null.
														
 
															+    auto opener_browsing_context = current->opener_browsing_context();
														
 
															+    if (!opener_browsing_context)
														
 
															+        return {};
														
 
															+
														
 
															+    // 4. Return current's opener browsing context's WindowProxy object.
														
 
															+    return opener_browsing_context->window_proxy();
														
 
															+}
														
 
															+
														
 
															+WebIDL::ExceptionOr<void> Window::set_opener(JS::Value value)
														
 
															+{
														
 
															+    // 1. If the given value is null and this's browsing context is non-null, then set this's browsing context's opener browsing context to null.
														
 
															+    auto* browsing_context = this->browsing_context();
														
 
															+    if (value.is_null() && browsing_context)
														
 
															+        browsing_context->set_opener_browsing_context(nullptr);
														
 
															+
														
 
															+    // 2. If the given value is non-null, then perform ? DefinePropertyOrThrow(this, "opener", { [[Value]]: the given value, [[Writable]]: true, [[Enumerable]]: true, [[Configurable]]: true }).
														
 
															+    if (!value.is_null()) {
														
 
															+        static JS::PropertyKey opener_property_key { "opener", JS::PropertyKey::StringMayBeNumber::No };
														
 
															+        TRY(define_property_or_throw(opener_property_key, { .value = value, .writable = true, .enumerable = true, .configurable = true }));
														
 
															+    }
														
 
															+
														
 
															+    return {};
														
 
															+}
														
 
															+
														
 
															 // https://html.spec.whatwg.org/multipage/nav-history-apis.html#dom-parent
														
 
															 JS::GCPtr<WindowProxy const> Window::parent() const
														
 
															 {
														
--- a/Userland/Libraries/LibWeb/HTML/Window.h
+++ b/Userland/Libraries/LibWeb/HTML/Window.h
@@ -144,6 +144,8 @@ public:
 
															     JS::NonnullGCPtr<WindowProxy> frames() const;
														
 
															     u32 length();
														
 
															     JS::GCPtr<WindowProxy const> top() const;
														
 
															+    JS::GCPtr<WindowProxy const> opener() const;
														
 
															+    WebIDL::ExceptionOr<void> set_opener(JS::Value);
														
 
															     JS::GCPtr<WindowProxy const> parent() const;
														
 
															     JS::GCPtr<DOM::Element const> frame_element() const;
														
 
															     WebIDL::ExceptionOr<JS::GCPtr<WindowProxy>> open(Optional<String> const& url, Optional<String> const& target, Optional<String> const& features);
														
--- a/Userland/Libraries/LibWeb/HTML/Window.idl
+++ b/Userland/Libraries/LibWeb/HTML/Window.idl
@@ -35,6 +35,7 @@ interface Window : EventTarget {
 
															     [Replaceable] readonly attribute WindowProxy frames;
														
 
															     [Replaceable] readonly attribute unsigned long length;
														
 
															     [LegacyUnforgeable] readonly attribute WindowProxy? top;
														
 
															+    attribute any opener;
														
 
															     [Replaceable] readonly attribute WindowProxy? parent;
														
 
															     readonly attribute Element? frameElement;
														
 
															     WindowProxy? open(optional USVString url = "", optional DOMString target = "_blank", optional [LegacyNullToEmptyString] DOMString features = "");