185 lines
7.8 KiB
C++
185 lines
7.8 KiB
C++
/*
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* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
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* (C) 1999 Antti Koivisto (koivisto@kde.org)
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* (C) 2000 Dirk Mueller (mueller@kde.org)
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* Copyright (C) 2004-2018 Apple Inc. All rights reserved.
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* Copyright (C) 2009, 2010, 2011 Google Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#pragma once
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#include "HTMLFormControlElementWithState.h"
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namespace WebCore {
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class Position;
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class RenderTextControl;
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class TextControlInnerTextElement;
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class VisiblePosition;
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struct SimpleRange;
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enum class AutoFillButtonType : uint8_t { None, Credentials, Contacts, StrongPassword, CreditCard };
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enum TextFieldSelectionDirection { SelectionHasNoDirection, SelectionHasForwardDirection, SelectionHasBackwardDirection };
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enum TextFieldEventBehavior { DispatchNoEvent, DispatchChangeEvent, DispatchInputAndChangeEvent };
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class HTMLTextFormControlElement : public HTMLFormControlElementWithState {
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WTF_MAKE_ISO_ALLOCATED(HTMLTextFormControlElement);
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public:
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// Common flag for HTMLInputElement::tooLong() / tooShort() and HTMLTextAreaElement::tooLong() / tooShort().
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enum NeedsToCheckDirtyFlag {CheckDirtyFlag, IgnoreDirtyFlag};
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virtual ~HTMLTextFormControlElement();
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void didEditInnerTextValue();
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void forwardEvent(Event&);
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int maxLength() const { return m_maxLength; }
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WEBCORE_EXPORT ExceptionOr<void> setMaxLength(int);
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int minLength() const { return m_minLength; }
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ExceptionOr<void> setMinLength(int);
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InsertedIntoAncestorResult insertedIntoAncestor(InsertionType, ContainerNode&) override;
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// The derived class should return true if placeholder processing is needed.
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bool isPlaceholderVisible() const { return m_isPlaceholderVisible; }
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virtual bool supportsPlaceholder() const = 0;
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String strippedPlaceholder() const;
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virtual HTMLElement* placeholderElement() const = 0;
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void updatePlaceholderVisibility();
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WEBCORE_EXPORT void setCanShowPlaceholder(bool);
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bool canShowPlaceholder() const { return m_canShowPlaceholder; }
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int indexForVisiblePosition(const VisiblePosition&) const;
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WEBCORE_EXPORT VisiblePosition visiblePositionForIndex(int index) const;
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WEBCORE_EXPORT int selectionStart() const;
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WEBCORE_EXPORT int selectionEnd() const;
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WEBCORE_EXPORT const AtomString& selectionDirection() const;
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WEBCORE_EXPORT void setSelectionStart(int);
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WEBCORE_EXPORT void setSelectionEnd(int);
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WEBCORE_EXPORT void setSelectionDirection(const String&);
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WEBCORE_EXPORT void select(SelectionRevealMode = SelectionRevealMode::DoNotReveal, const AXTextStateChangeIntent& = AXTextStateChangeIntent());
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WEBCORE_EXPORT virtual ExceptionOr<void> setRangeText(const String& replacement);
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WEBCORE_EXPORT virtual ExceptionOr<void> setRangeText(const String& replacement, unsigned start, unsigned end, const String& selectionMode);
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void setSelectionRange(int start, int end, const String& direction, const AXTextStateChangeIntent& = AXTextStateChangeIntent());
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WEBCORE_EXPORT void setSelectionRange(int start, int end, TextFieldSelectionDirection = SelectionHasNoDirection, SelectionRevealMode = SelectionRevealMode::DoNotReveal, const AXTextStateChangeIntent& = AXTextStateChangeIntent());
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std::optional<SimpleRange> selection() const;
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String selectedText() const;
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void dispatchFormControlChangeEvent() final;
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virtual String value() const = 0;
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virtual RefPtr<TextControlInnerTextElement> innerTextElement() const = 0;
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virtual RenderStyle createInnerTextStyle(const RenderStyle&) = 0;
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void selectionChanged(bool shouldFireSelectEvent);
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WEBCORE_EXPORT bool lastChangeWasUserEdit() const;
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void setInnerTextValue(const String&);
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String innerTextValue() const;
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String directionForFormData() const;
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void setTextAsOfLastFormControlChangeEvent(const String& text) { m_textAsOfLastFormControlChangeEvent = text; }
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WEBCORE_EXPORT virtual bool isInnerTextElementEditable() const;
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protected:
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HTMLTextFormControlElement(const QualifiedName&, Document&, HTMLFormElement*);
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bool isPlaceholderEmpty() const;
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virtual void updatePlaceholderText() = 0;
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void parseAttribute(const QualifiedName&, const AtomString&) override;
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void disabledStateChanged() override;
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void readOnlyStateChanged() override;
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void updateInnerTextElementEditability();
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void cacheSelection(int start, int end, TextFieldSelectionDirection direction)
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{
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m_cachedSelectionStart = start;
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m_cachedSelectionEnd = end;
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m_cachedSelectionDirection = direction;
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}
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void restoreCachedSelection(SelectionRevealMode, const AXTextStateChangeIntent& = AXTextStateChangeIntent());
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bool hasCachedSelection() const { return m_cachedSelectionStart >= 0; }
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virtual void subtreeHasChanged() = 0;
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void setLastChangeWasNotUserEdit() { m_lastChangeWasUserEdit = false; }
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String valueWithHardLineBreaks() const;
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void adjustInnerTextStyle(const RenderStyle& parentStyle, RenderStyle& textBlockStyle) const;
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void internalSetMaxLength(int maxLength) { m_maxLength = maxLength; }
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void internalSetMinLength(int minLength) { m_minLength = minLength; }
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private:
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TextFieldSelectionDirection cachedSelectionDirection() const { return static_cast<TextFieldSelectionDirection>(m_cachedSelectionDirection); }
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bool isTextFormControlElement() const final { return true; }
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int computeSelectionStart() const;
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int computeSelectionEnd() const;
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TextFieldSelectionDirection computeSelectionDirection() const;
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void dispatchFocusEvent(RefPtr<Element>&& oldFocusedElement, FocusDirection) final;
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void dispatchBlurEvent(RefPtr<Element>&& newFocusedElement) final;
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bool childShouldCreateRenderer(const Node&) const override;
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unsigned indexForPosition(const Position&) const;
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// Returns true if user-editable value is empty. Used to check placeholder visibility.
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virtual bool isEmptyValue() const = 0;
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// Called in dispatchFocusEvent(), after placeholder process, before calling parent's dispatchFocusEvent().
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virtual void handleFocusEvent(Node* /* oldFocusedNode */, FocusDirection) { }
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// Called in dispatchBlurEvent(), after placeholder process, before calling parent's dispatchBlurEvent().
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virtual void handleBlurEvent() { }
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bool placeholderShouldBeVisible() const;
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unsigned m_cachedSelectionDirection : 2;
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unsigned m_lastChangeWasUserEdit : 1;
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unsigned m_isPlaceholderVisible : 1;
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unsigned m_canShowPlaceholder : 1;
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String m_textAsOfLastFormControlChangeEvent;
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int m_cachedSelectionStart;
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int m_cachedSelectionEnd;
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int m_maxLength { -1 };
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int m_minLength { -1 };
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};
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WEBCORE_EXPORT HTMLTextFormControlElement* enclosingTextFormControl(const Position&);
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} // namespace WebCore
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SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::HTMLTextFormControlElement)
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static bool isType(const WebCore::Element& element) { return element.isTextFormControlElement(); }
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static bool isType(const WebCore::Node& node) { return is<WebCore::Element>(node) && isType(downcast<WebCore::Element>(node)); }
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static bool isType(const WebCore::EventTarget& target) { return is<WebCore::Node>(target) && isType(downcast<WebCore::Node>(target)); }
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SPECIALIZE_TYPE_TRAITS_END()
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