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      1 /*
      2  * Copyright (C) 2007-2009 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 #include "V8Document.h"
     33 
     34 #include "V8CanvasRenderingContext2D.h"
     35 #include "V8DOMImplementation.h"
     36 #include "V8HTMLDocument.h"
     37 #include "V8Node.h"
     38 #include "V8SVGDocument.h"
     39 #include "V8Touch.h"
     40 #include "V8TouchList.h"
     41 #include "V8WebGLRenderingContext.h"
     42 #include "V8XPathNSResolver.h"
     43 #include "V8XPathResult.h"
     44 #include "bindings/v8/ExceptionState.h"
     45 #include "bindings/v8/ScriptController.h"
     46 #include "bindings/v8/V8Binding.h"
     47 #include "bindings/v8/V8DOMWrapper.h"
     48 #include "bindings/v8/V8WindowShell.h"
     49 #include "bindings/v8/custom/V8CustomXPathNSResolver.h"
     50 #include "core/dom/Document.h"
     51 #include "core/dom/ExceptionCode.h"
     52 #include "core/dom/Node.h"
     53 #include "core/dom/TouchList.h"
     54 #include "core/html/canvas/CanvasRenderingContext.h"
     55 #include "core/page/Frame.h"
     56 #include "core/xml/DocumentXPathEvaluator.h"
     57 #include "core/xml/XPathNSResolver.h"
     58 #include "core/xml/XPathResult.h"
     59 #include "wtf/RefPtr.h"
     60 
     61 namespace WebCore {
     62 
     63 void V8Document::evaluateMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& args)
     64 {
     65     RefPtr<Document> document = V8Document::toNative(args.Holder());
     66     ExceptionState es(args.GetIsolate());
     67     String expression = toWebCoreString(args[0]);
     68     RefPtr<Node> contextNode;
     69     if (V8Node::HasInstance(args[1], args.GetIsolate(), worldType(args.GetIsolate())))
     70         contextNode = V8Node::toNative(v8::Handle<v8::Object>::Cast(args[1]));
     71 
     72     RefPtr<XPathNSResolver> resolver = toXPathNSResolver(args[2], args.GetIsolate());
     73     if (!resolver && !args[2]->IsNull() && !args[2]->IsUndefined()) {
     74         setDOMException(TypeMismatchError, args.GetIsolate());
     75         return;
     76     }
     77 
     78     int type = toInt32(args[3]);
     79     RefPtr<XPathResult> inResult;
     80     if (V8XPathResult::HasInstance(args[4], args.GetIsolate(), worldType(args.GetIsolate())))
     81         inResult = V8XPathResult::toNative(v8::Handle<v8::Object>::Cast(args[4]));
     82 
     83     V8TRYCATCH_VOID(RefPtr<XPathResult>, result, DocumentXPathEvaluator::evaluate(document.get(), expression, contextNode.get(), resolver.get(), type, inResult.get(), es));
     84     if (es.throwIfNeeded())
     85         return;
     86 
     87     v8SetReturnValue(args, toV8Fast(result.release(), args, document.get()));
     88 }
     89 
     90 v8::Handle<v8::Object> wrap(Document* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
     91 {
     92     ASSERT(impl);
     93     if (impl->isHTMLDocument())
     94         return wrap(toHTMLDocument(impl), creationContext, isolate);
     95     if (impl->isSVGDocument())
     96         return wrap(toSVGDocument(impl), creationContext, isolate);
     97     v8::Handle<v8::Object> wrapper = V8Document::createWrapper(impl, creationContext, isolate);
     98     if (wrapper.IsEmpty())
     99         return wrapper;
    100     if (!isolatedWorldForEnteredContext()) {
    101         if (Frame* frame = impl->frame())
    102             frame->script()->windowShell(mainThreadNormalWorld())->updateDocumentWrapper(wrapper);
    103     }
    104     return wrapper;
    105 }
    106 
    107 void V8Document::createTouchListMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& args)
    108 {
    109     RefPtr<TouchList> touchList = TouchList::create();
    110 
    111     for (int i = 0; i < args.Length(); i++) {
    112         Touch* touch = V8DOMWrapper::isWrapperOfType(args[i], &V8Touch::info) ? V8Touch::toNative(args[i]->ToObject()) : 0;
    113         touchList->append(touch);
    114     }
    115 
    116     v8SetReturnValue(args, toV8(touchList.release(), args.Holder(), args.GetIsolate()));
    117 }
    118 
    119 } // namespace WebCore
    120