WebCore/bindings/js/JSHTMLAllCollectionCustom.cpp
changeset 0 4f2f89ce4247
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bindings/js/JSHTMLAllCollectionCustom.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,136 @@
+/*
+ * Copyright (C) 2009 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#include "config.h"
+#include "JSHTMLAllCollection.h"
+
+#include "AtomicString.h"
+#include "HTMLAllCollection.h"
+#include "JSDOMBinding.h"
+#include "JSHTMLAllCollection.h"
+#include "JSNode.h"
+#include "JSNodeList.h"
+#include "Node.h"
+#include "StaticNodeList.h"
+#include <runtime/JSValue.h>
+#include <wtf/Vector.h>
+
+using namespace JSC;
+
+namespace WebCore {
+
+static JSValue getNamedItems(ExecState* exec, JSHTMLAllCollection* collection, const Identifier& propertyName)
+{
+    Vector<RefPtr<Node> > namedItems;
+    collection->impl()->namedItems(identifierToAtomicString(propertyName), namedItems);
+
+    if (namedItems.isEmpty())
+        return jsUndefined();
+    if (namedItems.size() == 1)
+        return toJS(exec, collection->globalObject(), namedItems[0].get());
+
+    // FIXME: HTML5 specifies that this should be a DynamicNodeList.
+    // FIXME: HTML5 specifies that non-HTMLOptionsCollection collections should return
+    // the first matching item instead of a NodeList.
+    return toJS(exec, collection->globalObject(), StaticNodeList::adopt(namedItems).get());
+}
+
+// HTMLCollections are strange objects, they support both get and call,
+// so that document.forms.item(0) and document.forms(0) both work.
+static EncodedJSValue JSC_HOST_CALL callHTMLAllCollection(ExecState* exec)
+{
+    if (exec->argumentCount() < 1)
+        return JSValue::encode(jsUndefined());
+
+    // Do not use thisObj here. It can be the JSHTMLDocument, in the document.forms(i) case.
+    JSHTMLAllCollection* jsCollection = static_cast<JSHTMLAllCollection*>(exec->callee());
+    HTMLAllCollection* collection = static_cast<HTMLAllCollection*>(jsCollection->impl());
+
+    // Also, do we need the TypeError test here ?
+
+    if (exec->argumentCount() == 1) {
+        // Support for document.all(<index>) etc.
+        bool ok;
+        UString string = exec->argument(0).toString(exec);
+        unsigned index = string.toUInt32(&ok, false);
+        if (ok)
+            return JSValue::encode(toJS(exec, jsCollection->globalObject(), collection->item(index)));
+
+        // Support for document.images('<name>') etc.
+        return JSValue::encode(getNamedItems(exec, jsCollection, Identifier(exec, string)));
+    }
+
+    // The second arg, if set, is the index of the item we want
+    bool ok;
+    UString string = exec->argument(0).toString(exec);
+    unsigned index = exec->argument(1).toString(exec).toUInt32(&ok, false);
+    if (ok) {
+        String pstr = ustringToString(string);
+        Node* node = collection->namedItem(pstr);
+        while (node) {
+            if (!index)
+                return JSValue::encode(toJS(exec, jsCollection->globalObject(), node));
+            node = collection->nextNamedItem(pstr);
+            --index;
+        }
+    }
+
+    return JSValue::encode(jsUndefined());
+}
+
+CallType JSHTMLAllCollection::getCallData(CallData& callData)
+{
+    callData.native.function = callHTMLAllCollection;
+    return CallTypeHost;
+}
+
+bool JSHTMLAllCollection::canGetItemsForName(ExecState*, HTMLAllCollection* collection, const Identifier& propertyName)
+{
+    Vector<RefPtr<Node> > namedItems;
+    collection->namedItems(identifierToAtomicString(propertyName), namedItems);
+    return !namedItems.isEmpty();
+}
+
+JSValue JSHTMLAllCollection::nameGetter(ExecState* exec, JSValue slotBase, const Identifier& propertyName)
+{
+    JSHTMLAllCollection* thisObj = static_cast<JSHTMLAllCollection*>(asObject(slotBase));
+    return getNamedItems(exec, thisObj, propertyName);
+}
+
+JSValue JSHTMLAllCollection::item(ExecState* exec)
+{
+    bool ok;
+    uint32_t index = exec->argument(0).toString(exec).toUInt32(&ok, false);
+    if (ok)
+        return toJS(exec, globalObject(), impl()->item(index));
+    return getNamedItems(exec, this, Identifier(exec, exec->argument(0).toString(exec)));
+}
+
+JSValue JSHTMLAllCollection::namedItem(ExecState* exec)
+{
+    return getNamedItems(exec, this, Identifier(exec, exec->argument(0).toString(exec)));
+}
+
+} // namespace WebCore