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/*
* Copyright (C) 2009, 2010, 2011, 2012 Research In Motion Limited. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef InputHandler_h
#define InputHandler_h
#include "FloatPoint.h"
#include "TextChecking.h"
#include <BlackBerryPlatformInputEvents.h>
#include <BlackBerryPlatformSettings.h>
#include <imf/events.h>
#include <imf/input_data.h>
#include <map>
#include <pthread.h>
#include <wtf/RefPtr.h>
namespace WTF {
class String;
}
namespace WebCore {
class AttributeTextStyle;
class Element;
class Frame;
class HTMLInputElement;
class HTMLSelectElement;
class IntRect;
class Node;
class Range;
class SpellChecker;
class TextCheckingRequest;
class VisiblePosition;
class VisibleSelection;
}
namespace BlackBerry {
namespace Platform {
class IntPoint;
class KeyboardEvent;
}
namespace WebKit {
class WebPagePrivate;
class InputHandler {
public:
InputHandler(WebPagePrivate*);
~InputHandler();
enum FocusElementType { TextEdit, TextPopup /* Date/Time & Color */, SelectPopup, Plugin };
enum CaretScrollType { CenterAlways = BlackBerry::Platform::Settings::ScrollAdjustmentCenterAlways,
CenterIfNeeded = BlackBerry::Platform::Settings::ScrollAdjustmentCenterIfNeeded,
EdgeIfNeeded = BlackBerry::Platform::Settings::ScrollAdjustmentEdgeIfNeeded };
bool isInputModeEnabled() const;
void setInputModeEnabled(bool active = true);
void focusedNodeChanged();
void nodeTextChanged(const WebCore::Node*);
void selectionChanged();
void frameUnloaded(const WebCore::Frame*);
bool handleKeyboardInput(const BlackBerry::Platform::KeyboardEvent&, bool changeIsPartOfComposition = false);
bool deleteSelection();
void insertText(const WTF::String&);
void clearField();
void cut();
void copy();
void paste();
void selectAll();
void cancelSelection();
void setInputValue(const WTF::String&);
void setDelayKeyboardVisibilityChange(bool value);
void processPendingKeyboardVisibilityChange();
void notifyClientOfKeyboardVisibilityChange(bool visible, bool triggeredByFocusChange = false);
bool isInputMode() const { return isActiveTextEdit(); }
bool isMultilineInputMode() const { return isActiveTextEdit() && elementType(m_currentFocusElement.get()) == BlackBerry::Platform::InputTypeTextArea; }
PassRefPtr<WebCore::Element> currentFocusElement() const { return m_currentFocusElement; }
void ensureFocusElementVisible(bool centerFieldInDisplay = true);
void handleInputLocaleChanged(bool isRTL);
// PopupMenu methods.
bool willOpenPopupForNode(WebCore::Node*);
bool didNodeOpenPopup(WebCore::Node*);
bool openLineInputPopup(WebCore::HTMLInputElement*);
bool openSelectPopup(WebCore::HTMLSelectElement*);
void setPopupListIndex(int);
void setPopupListIndexes(int size, const bool* selecteds);
bool processingChange() const { return m_processingChange; }
void setProcessingChange(bool);
WTF::String elementText();
WebCore::IntRect boundingBoxForInputField();
// IMF driven calls.
bool setBatchEditingActive(bool);
bool setSelection(int start, int end, bool changeIsPartOfComposition = false);
int caretPosition() const;
bool deleteTextRelativeToCursor(int leftOffset, int rightOffset);
spannable_string_t* selectedText(int32_t flags);
spannable_string_t* textBeforeCursor(int32_t length, int32_t flags);
spannable_string_t* textAfterCursor(int32_t length, int32_t flags);
extracted_text_t* extractedTextRequest(extracted_text_request_t*, int32_t flags);
int32_t setComposingRegion(int32_t start, int32_t end);
int32_t finishComposition();
int32_t setComposingText(spannable_string_t*, int32_t relativeCursorPosition);
int32_t commitText(spannable_string_t*, int32_t relativeCursorPosition);
void requestCheckingOfString(WTF::PassRefPtr<WebCore::TextCheckingRequest>);
void spellCheckingRequestProcessed(int32_t transactionId, spannable_string_t*);
void spellCheckingRequestCancelled(int32_t transactionId);
bool shouldRequestSpellCheckingOptionsForPoint(Platform::IntPoint&, const WebCore::Element*, imf_sp_text_t&);
void requestSpellingCheckingOptions(imf_sp_text_t&, const WebCore::IntSize& screenOffset);
private:
enum PendingKeyboardStateChange { NoChange, Visible, NotVisible };
void setElementFocused(WebCore::Element*);
void setPluginFocused(WebCore::Element*);
void setElementUnfocused(bool refocusOccuring = false);
void ensureFocusTextElementVisible(CaretScrollType = CenterAlways);
void ensureFocusPluginElementVisible();
void clearCurrentFocusElement();
bool selectionAtStartOfElement();
bool selectionAtEndOfElement();
WebCore::IntRect rectForCaret(int index);
bool isActiveTextEdit() const { return m_currentFocusElement && m_currentFocusElementType == TextEdit; }
bool isActiveTextPopup() const { return m_currentFocusElement && m_currentFocusElementType == TextPopup; }
bool isActiveSelectPopup() const { return m_currentFocusElement && m_currentFocusElementType == SelectPopup; }
bool isActivePlugin() const { return m_currentFocusElement && m_currentFocusElementType == Plugin; }
bool openDatePopup(WebCore::HTMLInputElement*, BlackBerry::Platform::BlackBerryInputType);
bool openColorPopup(WebCore::HTMLInputElement*);
bool executeTextEditCommand(const WTF::String&);
BlackBerry::Platform::BlackBerryInputType elementType(WebCore::Element*) const;
int selectionStart() const;
int selectionEnd() const;
int selectionPosition(bool start) const;
bool selectionActive() const { return selectionStart() != selectionEnd(); }
bool compositionActive() const { return compositionLength(); }
unsigned compositionLength() const { return m_composingTextEnd - m_composingTextStart; }
spannable_string_t* spannableTextInRange(int start, int end, int32_t flags);
void addAttributedTextMarker(int start, int end, const WebCore::AttributeTextStyle&);
void removeAttributedTextMarker();
bool deleteText(int start, int end);
bool setTextAttributes(int insertionPoint, spannable_string_t*);
bool setText(spannable_string_t*);
bool setSpannableTextAndRelativeCursor(spannable_string_t*, int relativeCursorPosition, bool markTextAsComposing);
bool removeComposedText();
bool setRelativeCursorPosition(int insertionPoint, int relativeCursorPosition);
bool setCursorPosition(int location);
span_t* firstSpanInString(spannable_string_t*, SpannableStringAttribute);
bool isTrailingSingleCharacter(span_t*, unsigned, unsigned);
void learnText();
void sendLearnTextDetails(const WTF::String&);
void spellCheckBlock(WebCore::VisibleSelection&, WebCore::TextCheckingProcessType);
PassRefPtr<WebCore::Range> getRangeForSpellCheckWithFineGranularity(WebCore::VisiblePosition startPosition, WebCore::VisiblePosition endPosition);
WebCore::SpellChecker* getSpellChecker();
bool shouldSpellCheckElement(const WebCore::Element*) const;
WebPagePrivate* m_webPage;
RefPtr<WebCore::Element> m_currentFocusElement;
bool m_inputModeEnabled;
bool m_processingChange;
bool m_changingFocus;
FocusElementType m_currentFocusElementType;
int64_t m_currentFocusElementTextEditMask;
int m_composingTextStart;
int m_composingTextEnd;
PendingKeyboardStateChange m_pendingKeyboardVisibilityChange;
bool m_delayKeyboardVisibilityChange;
RefPtr<WebCore::TextCheckingRequest> m_request;
int32_t m_processingTransactionId;
bool m_receivedBackspaceKeyDown;
unsigned short m_expectedKeyUpChar;
};
}
}
#endif // InputHandler_h
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