HTMLScriptRunner.h [plain text]
#ifndef HTMLScriptRunner_h
#define HTMLScriptRunner_h
#include "PendingScript.h"
#include <wtf/Deque.h>
#include <wtf/PassOwnPtr.h>
#include <wtf/text/TextPosition.h>
namespace WebCore {
class CachedResource;
class CachedScript;
class Document;
class Element;
class Frame;
class HTMLScriptRunnerHost;
class ScriptSourceCode;
class HTMLScriptRunner {
WTF_MAKE_NONCOPYABLE(HTMLScriptRunner); WTF_MAKE_FAST_ALLOCATED;
public:
static PassOwnPtr<HTMLScriptRunner> create(Document* document, HTMLScriptRunnerHost* host)
{
return adoptPtr(new HTMLScriptRunner(document, host));
}
~HTMLScriptRunner();
void detach();
void execute(PassRefPtr<Element> scriptToProcess, const TextPosition& scriptStartPosition);
void executeScriptsWaitingForLoad(CachedResource*);
bool hasScriptsWaitingForStylesheets() const { return m_hasScriptsWaitingForStylesheets; }
void executeScriptsWaitingForStylesheets();
bool executeScriptsWaitingForParsing();
bool hasParserBlockingScript() const;
bool isExecutingScript() const { return !!m_scriptNestingLevel; }
private:
HTMLScriptRunner(Document*, HTMLScriptRunnerHost*);
Frame* frame() const;
void executeParsingBlockingScript();
void executePendingScriptAndDispatchEvent(PendingScript&);
void executeParsingBlockingScripts();
void requestParsingBlockingScript(Element*);
void requestDeferredScript(Element*);
bool requestPendingScript(PendingScript&, Element*) const;
void runScript(Element*, const TextPosition& scriptStartPosition);
void watchForLoad(PendingScript&);
void stopWatchingForLoad(PendingScript&);
bool isPendingScriptReady(const PendingScript&);
ScriptSourceCode sourceFromPendingScript(const PendingScript&, bool& errorOccurred) const;
Document* m_document;
HTMLScriptRunnerHost* m_host;
PendingScript m_parserBlockingScript;
Deque<PendingScript> m_scriptsToExecuteAfterParsing; unsigned m_scriptNestingLevel;
bool m_hasScriptsWaitingForStylesheets;
};
}
#endif