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IN NO EVENT SHALL THE COPYRIGHT 225f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 235f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 245f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 255f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 265f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 275f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 285f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 295f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian */ 305f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 315f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian#ifndef V8Utilities_h 325f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian#define V8Utilities_h 335f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 345f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian#include <v8.h> 355f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 365f1ab04193ad0130ca8204aadaceae083aca9881Feng Qiannamespace WebCore { 375f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 38643ca7872b450ea4efacab6188849e5aac2ba161Steve Block class EventListener; 395f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian class Frame; 405f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian class KURL; 41231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block class ScriptExecutionContext; 42231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block class ScriptState; 435f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian class String; 445f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 455f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian // Use an array to hold dependents. It works like a ref-counted scheme. A value can be added more than once to the DOM object. 46231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block void createHiddenDependency(v8::Handle<v8::Object>, v8::Local<v8::Value>, int cacheIndex); 47231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block void removeHiddenDependency(v8::Handle<v8::Object>, v8::Local<v8::Value>, int cacheIndex); 48643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 49643ca7872b450ea4efacab6188849e5aac2ba161Steve Block // Combo create/remove, for generated event-handler-setter bindings: 50643ca7872b450ea4efacab6188849e5aac2ba161Steve Block void transferHiddenDependency(v8::Handle<v8::Object>, EventListener* oldValue, v8::Local<v8::Value> newValue, int cacheIndex); 51643ca7872b450ea4efacab6188849e5aac2ba161Steve Block 525f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian bool processingUserGesture(); 535f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian bool shouldAllowNavigation(Frame*); 545f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian KURL completeURL(const String& relativeURL); 555f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian void navigateIfAllowed(Frame*, const KURL&, bool lockHistory, bool lockBackForwardList); 565f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 57231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block ScriptExecutionContext* getScriptExecutionContext(ScriptState*); 58231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block inline ScriptExecutionContext* getScriptExecutionContext() { 59231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block return getScriptExecutionContext(0); 60231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block } 61231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 62231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block void reportException(ScriptState*, v8::TryCatch&); 63231d4e3152a9c27a73b6ac7badbe6be673aa3ddfSteve Block 645f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian class AllowAllocation { 655f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian public: 665f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian inline AllowAllocation() 675f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian { 685f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian m_previous = m_current; 695f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian m_current = true; 705f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian } 715f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 725f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian inline ~AllowAllocation() 735f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian { 745f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian m_current = m_previous; 755f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian } 765f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 775f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian static bool m_current; 785f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 795f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian private: 805f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian bool m_previous; 815f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian }; 825f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 835f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian class SafeAllocation { 845f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian public: 855f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian static inline v8::Local<v8::Object> newInstance(v8::Handle<v8::Function>); 865f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian static inline v8::Local<v8::Object> newInstance(v8::Handle<v8::ObjectTemplate>); 875f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian static inline v8::Local<v8::Object> newInstance(v8::Handle<v8::Function>, int argc, v8::Handle<v8::Value> argv[]); 885f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian }; 895f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 905f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian v8::Local<v8::Object> SafeAllocation::newInstance(v8::Handle<v8::Function> function) 915f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian { 925f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (function.IsEmpty()) 935f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return v8::Local<v8::Object>(); 945f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian AllowAllocation allow; 955f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return function->NewInstance(); 965f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian } 975f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 985f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian v8::Local<v8::Object> SafeAllocation::newInstance(v8::Handle<v8::ObjectTemplate> objectTemplate) 995f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian { 1005f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (objectTemplate.IsEmpty()) 1015f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return v8::Local<v8::Object>(); 1025f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian AllowAllocation allow; 1035f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return objectTemplate->NewInstance(); 1045f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian } 1055f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 1065f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian v8::Local<v8::Object> SafeAllocation::newInstance(v8::Handle<v8::Function> function, int argc, v8::Handle<v8::Value> argv[]) 1075f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian { 1085f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian if (function.IsEmpty()) 1095f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return v8::Local<v8::Object>(); 1105f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian AllowAllocation allow; 1115f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian return function->NewInstance(argc, argv); 1125f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian } 1135f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 1145f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian} // namespace WebCore 1155f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian 1165f1ab04193ad0130ca8204aadaceae083aca9881Feng Qian#endif // V8Utilities_h 117