Implement URLSearchParams.

Source/core/dom/DOMURLUtils.cpp

Index: Source/core/dom/DOMURLUtils.cpp
diff --git a/Source/core/dom/DOMURLUtils.cpp b/Source/core/dom/DOMURLUtils.cpp
index 7e1fa195c5af5d86fe00115f540654c8e164e65c..697f8525f1cdaee11be493ffd55d879e8b88f1bf 100644
--- a/Source/core/dom/DOMURLUtils.cpp
+++ b/Source/core/dom/DOMURLUtils.cpp
@@ -27,10 +27,18 @@
 #include "config.h"
 #include "core/dom/DOMURLUtils.h"
 
+#include "bindings/v8/ExceptionState.h"
 #include "platform/weborigin/KnownPorts.h"
+#include "wtf/PassOwnPtr.h"
 
 namespace WebCore {
 
+void DOMURLUtils::update(DOMURLUtils* impl)
+{
+    KURL url = impl->url();
+    updateSearchParams(impl, url.query());
+}
+
 void DOMURLUtils::setHref(DOMURLUtils* impl, const String& value)
 {
     impl->setInput(value);
@@ -122,6 +130,12 @@ void DOMURLUtils::setSearch(DOMURLUtils* impl, const String& value)
     if (!url.isValid())
         return;
     url.setQuery(value);
+
+    if (!value.isEmpty() && value[0] == '?')
+        updateSearchParams(impl, value.substring(1));
+    else
+        updateSearchParams(impl, value);
+
     impl->setURL(url);
 }
 
@@ -139,4 +153,53 @@ void DOMURLUtils::setHash(DOMURLUtils* impl, const String& value)
     impl->setURL(url);
 }
 
+DOMURLSearchParams* DOMURLUtils::searchParams(DOMURLUtils* impl)
+{
+    if (!impl->m_searchParams)
+        createSearchParams(impl, impl->url().query());
+    return impl->m_searchParams.get();
+}
+
+void DOMURLUtils::createSearchParams(DOMURLUtils* impl, const String& queryString)
+{
+    if (!impl->m_searchParams) {
+        RefPtr<DOMURLSearchParams> searchParams = DOMURLSearchParams::create(queryString, impl);
+        impl->m_searchParams = adoptPtr(searchParams.get());
+    } else {
+        updateSearchParams(impl, queryString);
+    }
+}
+
+void DOMURLUtils::updateSearchParams(DOMURLUtils* impl, const String& queryString)
+{
+    if (!impl->m_searchParams)
+        return;
+
+    ASSERT(impl->m_searchParams->urlObject() == impl);
+    impl->m_searchParams->setInput(queryString);
+}
+
+void DOMURLUtils::setSearchParams(DOMURLUtils* impl, DOMURLSearchParams* searchParams, ExceptionState& exceptionState)
+{
+    if (!searchParams) {
+        exceptionState.throwTypeError("Value is not an URLSearchParams object.");
+        return;
+    }
+    if (searchParams == impl->m_searchParams)
+        return;
+
+    // Let go of previous; GC reclaims eventually.
+    if (impl->m_searchParams) {
+        impl->m_searchParams->setURLObject(0);
+        DOMURLSearchParams* ALLOW_UNUSED oldParams = impl->m_searchParams.leakPtr();
+    }
+    if (searchParams->urlObject()) {

[arv (Not doing code reviews), 2014/01/22 16:12:05]

Is there a test covering this?

[sof, 2014/01/22 19:27:09]

Yes, url-searchparam-constructor.html ("URLSearchParams constructor, object.")

+        RefPtr<DOMURLSearchParams> copiedParams = DOMURLSearchParams::create(searchParams, impl);
+        impl->m_searchParams = adoptPtr(copiedParams.get());
+    } else {
+        searchParams->setURLObject(impl);
+        impl->m_searchParams = adoptPtr(searchParams);
+    }
+}
+
 } // namespace WebCore