1 /* 2 * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/) 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 * 19 */ 20 21 #ifndef InputElement_h 22 #define InputElement_h 23 24 #include "AtomicString.h" 25 #include "PlatformString.h" 26 27 namespace WebCore { 28 29 class Document; 30 class Element; 31 class Event; 32 class InputElementData; 33 class MappedAttribute; 34 35 class InputElement { 36 public: ~InputElement()37 virtual ~InputElement() { } 38 39 virtual bool isAutofilled() const = 0; 40 virtual bool isChecked() const = 0; 41 virtual bool isIndeterminate() const = 0; 42 virtual bool isInputTypeHidden() const = 0; 43 virtual bool isPasswordField() const = 0; 44 virtual bool isSearchField() const = 0; 45 virtual bool isTextField() const = 0; 46 47 virtual bool placeholderShouldBeVisible() const = 0; 48 virtual bool searchEventsShouldBeDispatched() const = 0; 49 50 virtual int size() const = 0; 51 virtual String value() const = 0; 52 virtual void setValue(const String&) = 0; 53 54 virtual String placeholder() const = 0; 55 virtual void setPlaceholder(const String&) = 0; 56 57 virtual String constrainValue(const String&) const = 0; 58 virtual void setValueFromRenderer(const String&) = 0; 59 60 virtual void cacheSelection(int start, int end) = 0; 61 virtual void select() = 0; 62 63 static const int s_maximumLength; 64 static const int s_defaultSize; 65 66 protected: 67 static void dispatchFocusEvent(InputElementData&, InputElement*, Element*); 68 static void dispatchBlurEvent(InputElementData&, InputElement*, Element*); 69 static void updatePlaceholderVisibility(InputElementData&, InputElement*, Element*, bool placeholderValueChanged = false); 70 static void updateFocusAppearance(InputElementData&, InputElement*, Element*, bool restorePreviousSelection); 71 static void updateSelectionRange(InputElement*, Element*, int start, int end); 72 static void aboutToUnload(InputElement*, Element*); 73 static void setValueFromRenderer(InputElementData&, InputElement*, Element*, const String&); 74 static String constrainValue(const InputElement*, const String& proposedValue, int maxLength); 75 static void handleBeforeTextInsertedEvent(InputElementData&, InputElement*, Document*, Event*); 76 static void parseSizeAttribute(InputElementData&, Element*, MappedAttribute*); 77 static void parseMaxLengthAttribute(InputElementData&, InputElement*, Element*, MappedAttribute*); 78 static void updateValueIfNeeded(InputElementData&, InputElement*); 79 static void notifyFormStateChanged(Element*); 80 }; 81 82 // HTML/WMLInputElement hold this struct as member variable 83 // and pass it to the static helper functions in InputElement 84 class InputElementData { 85 public: 86 InputElementData(); 87 placeholderShouldBeVisible()88 bool placeholderShouldBeVisible() const { return m_placeholderShouldBeVisible; } setPlaceholderShouldBeVisible(bool visible)89 void setPlaceholderShouldBeVisible(bool visible) { m_placeholderShouldBeVisible = visible; } 90 91 const AtomicString& name() const; setName(const AtomicString & value)92 void setName(const AtomicString& value) { m_name = value; } 93 value()94 String value() const { return m_value; } setValue(const String & value)95 void setValue(const String& value) { m_value = value; } 96 size()97 int size() const { return m_size; } setSize(int value)98 void setSize(int value) { m_size = value; } 99 maxLength()100 int maxLength() const { return m_maxLength; } setMaxLength(int value)101 void setMaxLength(int value) { m_maxLength = value; } 102 cachedSelectionStart()103 int cachedSelectionStart() const { return m_cachedSelectionStart; } setCachedSelectionStart(int value)104 void setCachedSelectionStart(int value) { m_cachedSelectionStart = value; } 105 cachedSelectionEnd()106 int cachedSelectionEnd() const { return m_cachedSelectionEnd; } setCachedSelectionEnd(int value)107 void setCachedSelectionEnd(int value) { m_cachedSelectionEnd = value; } 108 109 private: 110 bool m_placeholderShouldBeVisible; 111 AtomicString m_name; 112 String m_value; 113 int m_size; 114 int m_maxLength; 115 int m_cachedSelectionStart; 116 int m_cachedSelectionEnd; 117 }; 118 119 InputElement* toInputElement(Element*); 120 121 } 122 123 #endif 124