pjs/layout/forms/nsListControlFrame.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is Mozilla Communicator client code.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1998
* Netscape Communications Corporation. All Rights Reserved.
*/
#ifndef nsListControlFrame_h___
#define nsListControlFrame_h___
#include "nsScrollFrame.h"
#include "nsIDOMFocusListener.h"
#include "nsIPresContext.h"
#include "nsIFormControlFrame.h"
#include "nsIListControlFrame.h"
class nsIDOMHTMLSelectElement;
class nsIDOMHTMLCollection;
class nsIDOMHTMLOptionElement;
class nsFormFrame;
class nsScrollFrame;
class nsIComboboxControlFrame;
class nsVoidArray;
/**
* The block frame has two additional named child lists:
* - "Floater-list" which contains the floated frames
* - "Bullet-list" which contains the bullet frame
*
* @see nsLayoutAtoms::bulletList
* @see nsLayoutAtoms::floaterList
*/
class nsListControlFrame : public nsScrollFrame,
public nsIFormControlFrame,
public nsIListControlFrame
{
public:
friend nsresult NS_NewListControlFrame(nsIFrame*& aNewFrame);
// nsISupports
NS_DECL_ISUPPORTS
// nsISupports overrides
// NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
NS_IMETHOD GetFrameForPoint(const nsPoint& aPoint, nsIFrame** aFrame);
NS_IMETHOD HandleEvent(nsIPresContext& aPresContext,
nsGUIEvent* aEvent,
nsEventStatus& aEventStatus);
// nsIFrame
NS_IMETHOD SetInitialChildList(nsIPresContext& aPresContext,
nsIAtom* aListName,
nsIFrame* aChildList);
NS_IMETHOD Reflow(nsIPresContext& aCX,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
NS_IMETHOD Init(nsIPresContext& aPresContext,
nsIContent* aContent,
nsIFrame* aParent,
nsIStyleContext* aContext,
nsIFrame* aPrevInFlow);
NS_IMETHOD Deselect();
// nsIFormControlFrame
NS_IMETHOD SetProperty(nsIAtom* aName, const nsString& aValue);
NS_IMETHOD GetProperty(nsIAtom* aName, nsString& aValue);
/*virtual nsresult Focus(nsIDOMEvent* aEvent);
virtual nsresult Blur(nsIDOMEvent* aEvent); */
NS_METHOD GetMultiple(PRBool* aResult, nsIDOMHTMLSelectElement* aSelect = nsnull);
// XXX the following methods are not referenced. They should be removed when it is
// confirmed that they are not needed
virtual nsresult GetSizeFromContent(PRInt32* aSize) const;
NS_IMETHOD GetMaxLength(PRInt32* aSize);
// XXX: End of the unreferenced methods
virtual nscoord GetVerticalInsidePadding(float aPixToTwip,
nscoord aInnerHeight) const;
virtual nscoord GetHorizontalInsidePadding(nsIPresContext& aPresContext,
float aPixToTwip,
nscoord aInnerWidth,
nscoord aCharWidth) const;
virtual nsresult RequiresWidget(PRBool &aRequiresWidget);
NS_IMETHOD GetFont(nsIPresContext* aPresContext,
nsFont& aFont);
NS_IMETHOD GetFormContent(nsIContent*& aContent) const;
/////////////////////////
// nsHTMLContainerFrame
/////////////////////////
virtual PRIntn GetSkipSides() const;
/////////////////////////
// nsIFormControlFrame
/////////////////////////
NS_IMETHOD GetType(PRInt32* aType) const;
NS_IMETHOD GetName(nsString* aName);
virtual void SetFocus(PRBool aOn = PR_TRUE, PRBool aRepaint = PR_FALSE);
virtual void MouseClicked(nsIPresContext* aPresContext);
virtual void Reset();
virtual PRBool IsSuccessful(nsIFormControlFrame* aSubmitter);
virtual PRInt32 GetMaxNumValues();
virtual PRBool GetNamesValues(PRInt32 aMaxNumValues, PRInt32& aNumValues,
nsString* aValues, nsString* aNames);
virtual void SetFormFrame(nsFormFrame* aFrame);
// nsIListControlFrame
NS_IMETHOD SetComboboxFrame(nsIFrame* aComboboxFrame);
NS_IMETHOD GetSelectedItem(nsString & aStr);
NS_IMETHOD AboutToDropDown();
NS_IMETHOD CaptureMouseEvents(PRBool aGrabMouseEvents);
// Static Methods
static nsIDOMHTMLSelectElement* GetSelect(nsIContent * aContent);
static nsIDOMHTMLCollection* GetOptions(nsIContent * aContent, nsIDOMHTMLSelectElement* aSelect = nsnull);
static nsIDOMHTMLOptionElement* GetOption(nsIDOMHTMLCollection& aOptions, PRUint32 aIndex);
static PRBool GetOptionValue(nsIDOMHTMLCollection& aCollecton, PRUint32 aIndex, nsString& aValue);
nsIContent* GetOptionContent(PRUint32 aIndex);
PRBool IsFrameSelected(PRUint32 aIndex);
void SetFrameSelected(PRUint32 aIndex, PRBool aSelected);
protected:
nsListControlFrame();
virtual ~nsListControlFrame();
PRInt32 GetNumberOfOptions();
nsIFrame * GetOptionFromChild(nsIFrame* aParentFrame);
nsresult GetFrameForPointUsing(const nsPoint& aPoint,
nsIAtom* aList,
nsIFrame** aFrame);
// Utility methods
void DisplaySelected(nsIContent* aContent);
void DisplayDeselected(nsIContent* aContent);
void UpdateItem(nsIContent* aContent, PRBool aSelected);
void ForceRedraw(nsIContent* aContent);
PRBool IsOptionGroup(nsIFrame* aFrame);
void ConstructSelectableList(nsIFrame* aFrame, nsVoidArray *aList);
nsIFrame* GetFirstSelectableFrame(nsVoidArray *aList, PRInt32& aPos);
nsIFrame* GetNextSelectableFrame(nsVoidArray *aList, PRInt32& aPos);
void SingleSelection();
void MultipleSelection(PRBool aIsShift, PRBool aIsControl);
void SelectIndex(PRInt32 aIndex);
void ToggleSelected(PRInt32 aIndex, nsIContent *aContent);
void SetSelectedIndex(PRInt32 aIndex, nsIContent *aContent);
void SetContentSelectedAttribute(PRUint32 aIndex, PRBool aSelected);
// nsHTMLContainerFrame overrides
void ClearSelection();
void InitializeFromContent(PRBool aDoDisplay = PR_FALSE);
void ExtendedSelection(PRInt32 aStartIndex, PRInt32 aEndIndex, PRBool aDoInvert, PRBool aSetValue);
NS_IMETHOD HandleLikeDropDownListEvent(nsIPresContext& aPresContext,
nsGUIEvent* aEvent,
nsEventStatus& aEventStatus);
NS_IMETHOD HandleLikeListEvent(nsIPresContext& aPresContext,
nsGUIEvent* aEvent,
nsEventStatus& aEventStatus);
PRInt32 SetContentSelected(nsIFrame * aHitFrame,
nsIContent *& aHitContent,
PRBool aDisplaySelected);
// Data Members
nscoord mBorderOffsetY;
nsFormFrame* mFormFrame;
PRInt32 mNumRows;
PRInt32 mNumSelections;
PRInt32 mMaxNumSelections;
PRBool mMultipleSelections;
PRInt32 mSelectedIndex;
PRInt32 mStartExtendedIndex;
PRInt32 mEndExtendedIndex;
nsIFrame * mHitFrame;
nsIContent * mHitContent;
nsIFrame * mCurrentHitFrame;
nsIContent * mCurrentHitContent;
nsIContent * mSelectedContent;
PRBool mIsInitializedFromContent;
nsIFrame * mContentFrame;
PRBool mInDropDownMode;
nsIComboboxControlFrame * mComboboxFrame;
nsString mSelectionStr;
nsVoidArray* mSelectableFrames;
};
#endif /* nsListControlFrame_h___ */