diff -r 000000000000 -r 4f2f89ce4247 WebCore/html/HTMLFormControlElement.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/html/HTMLFormControlElement.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,224 @@
+/*
+ * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
+ *           (C) 1999 Antti Koivisto (koivisto@kde.org)
+ *           (C) 2000 Dirk Mueller (mueller@kde.org)
+ * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef HTMLFormControlElement_h
+#define HTMLFormControlElement_h
+
+#include "HTMLElement.h"
+
+namespace WebCore {
+
+class FormDataList;
+class HTMLFormElement;
+class RenderTextControl;
+class ValidityState;
+class VisibleSelection;
+
+// FIXME: The HTML5 specification calls these form-associated elements.
+// So consider renaming this to HTMLFormAssociatedElement.
+class HTMLFormControlElement : public HTMLElement {
+public:
+    virtual ~HTMLFormControlElement();
+
+    HTMLFormElement* form() const { return m_form; }
+    ValidityState* validity();
+
+    bool formNoValidate() const;
+
+    virtual void reset() { }
+
+    virtual bool formControlValueMatchesRenderer() const { return m_valueMatchesRenderer; }
+    virtual void setFormControlValueMatchesRenderer(bool b) { m_valueMatchesRenderer = b; }
+
+    virtual void dispatchFormControlChangeEvent();
+
+    bool disabled() const { return m_disabled; }
+    void setDisabled(bool);
+
+    virtual bool isFocusable() const;
+    virtual bool isEnumeratable() const { return false; }
+
+    // Determines whether or not a control will be automatically focused.
+    virtual bool autofocus() const;
+
+    bool required() const;
+
+    const AtomicString& type() const { return formControlType(); }
+    const AtomicString& name() const { return formControlName(); }
+
+    void setName(const AtomicString& name);
+
+    virtual bool isEnabledFormControl() const { return !disabled(); }
+    virtual bool isReadOnlyFormControl() const { return readOnly(); }
+
+    virtual bool isRadioButton() const { return false; }
+    virtual bool canTriggerImplicitSubmission() const { return false; }
+
+    // Override in derived classes to get the encoded name=value pair for submitting.
+    // Return true for a successful control (see HTML4-17.13.2).
+    virtual bool appendFormData(FormDataList&, bool) { return false; }
+
+    virtual bool isSuccessfulSubmitButton() const { return false; }
+    virtual bool isActivatedSubmit() const { return false; }
+    virtual void setActivatedSubmit(bool) { }
+
+    virtual bool willValidate() const;
+    String validationMessage();
+    bool checkValidity(Vector<RefPtr<HTMLFormControlElement> >* unhandledInvalidControls = 0);
+    // This must be called when a validation constraint or control value is changed.
+    void setNeedsValidityCheck();
+    void setCustomValidity(const String&);
+    virtual bool valueMissing() const { return false; }
+    virtual bool patternMismatch() const { return false; }
+    virtual bool tooLong() const { return false; }
+
+    void formDestroyed() { m_form = 0; }
+
+    bool isLabelable() const;
+    PassRefPtr<NodeList> labels();
+    
+    bool readOnly() const { return m_readOnly; }
+
+protected:
+    HTMLFormControlElement(const QualifiedName& tagName, Document*, HTMLFormElement*);
+
+    virtual void parseMappedAttribute(Attribute*);
+    virtual void attach();
+    virtual void insertedIntoTree(bool deep);
+    virtual void removedFromTree(bool deep);
+
+    virtual bool isKeyboardFocusable(KeyboardEvent*) const;
+    virtual bool isMouseFocusable() const;
+
+    virtual void recalcStyle(StyleChange);
+
+    virtual void dispatchFocusEvent();
+    virtual void dispatchBlurEvent();
+
+    void removeFromForm();
+
+    // This must be called any time the result of willValidate() has changed.
+    void setNeedsWillValidateCheck();
+    virtual bool recalcWillValidate() const;
+
+private:
+    virtual HTMLTagStatus endTagRequirement() const { return TagStatusRequired; }
+    virtual int tagPriority() const { return 1; }
+
+    virtual const AtomicString& formControlName() const;
+    virtual const AtomicString& formControlType() const = 0;
+
+    virtual bool isFormControlElement() const { return true; }
+
+    virtual bool supportsFocus() const;
+
+    virtual short tabIndex() const;
+
+    virtual HTMLFormElement* virtualForm() const;
+    virtual bool isDefaultButtonForForm() const;
+    virtual bool isValidFormControlElement();
+
+    HTMLFormElement* m_form;
+    OwnPtr<ValidityState> m_validityState;
+    bool m_disabled : 1;
+    bool m_readOnly : 1;
+    bool m_required : 1;
+    bool m_valueMatchesRenderer : 1;
+
+    // The initial value of m_willValidate depends on the derived class. We can't
+    // initialize it with a virtual function in the constructor. m_willValidate
+    // is not deterministic as long as m_willValidateInitialized is false.
+    mutable bool m_willValidateInitialized: 1;
+    mutable bool m_willValidate : 1;
+
+    // Cache of validity()->valid().
+    // But "candidate for constraint validation" doesn't affect m_isValid.
+    bool m_isValid : 1;
+};
+
+// FIXME: Give this class its own header file.
+class HTMLFormControlElementWithState : public HTMLFormControlElement {
+public:
+    virtual ~HTMLFormControlElementWithState();
+
+protected:
+    HTMLFormControlElementWithState(const QualifiedName& tagName, Document*, HTMLFormElement*);
+
+    virtual bool autoComplete() const;
+
+    virtual void willMoveToNewOwnerDocument();
+    virtual void didMoveToNewOwnerDocument();
+    virtual void defaultEventHandler(Event*);
+
+private:
+    virtual bool shouldSaveAndRestoreFormControlState() const;
+    virtual void finishParsingChildren();
+};
+
+// FIXME: Give this class its own header file.
+class HTMLTextFormControlElement : public HTMLFormControlElementWithState {
+public:
+    virtual ~HTMLTextFormControlElement();
+
+    String strippedPlaceholder() const;
+
+    int selectionStart();
+    int selectionEnd();
+    void setSelectionStart(int);
+    void setSelectionEnd(int);
+    void select();
+    void setSelectionRange(int start, int end);
+    VisibleSelection selection() const;
+
+protected:
+    HTMLTextFormControlElement(const QualifiedName&, Document*, HTMLFormElement*);
+
+    bool placeholderShouldBeVisible() const;
+    void updatePlaceholderVisibility(bool);
+
+    virtual void parseMappedAttribute(Attribute*);
+
+private:
+    virtual void dispatchFocusEvent();
+    virtual void dispatchBlurEvent();
+
+    bool isPlaceholderEmpty() const;
+
+    virtual int cachedSelectionStart() const = 0;
+    virtual int cachedSelectionEnd() const = 0;
+
+    // The derived class should return true if placeholder processing is needed.
+    virtual bool supportsPlaceholder() const = 0;
+    // Returns true if user-editable value is empty. Used to check placeholder visibility.
+    virtual bool isEmptyValue() const = 0;
+    // Called in dispatchFocusEvent(), after placeholder process, before calling parent's dispatchFocusEvent().
+    virtual void handleFocusEvent() { }
+    // Called in dispatchBlurEvent(), after placeholder process, before calling parent's dispatchBlurEvent().
+    virtual void handleBlurEvent() { }
+
+    RenderTextControl* textRendererAfterUpdateLayout();
+};
+
+} // namespace
+
+#endif