зеркало из https://github.com/mozilla/pjs.git
193 строки
7.2 KiB
C++
193 строки
7.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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* the License for the specific language governing rights and limitations
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* under the License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are Copyright (C) 1998
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* Netscape Communications Corporation. All Rights Reserved.
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*/
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#ifndef nsListControlFrame_h___
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#define nsListControlFrame_h___
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#include "nsScrollFrame.h"
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#include "nsIFormControlFrame.h"
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#include "nsIListControlFrame.h"
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class nsIDOMHTMLSelectElement;
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class nsIDOMHTMLCollection;
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class nsIDOMHTMLOptionElement;
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class nsIComboboxControlFrame;
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/**
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* Frame-based listbox.
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*/
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class nsListControlFrame : public nsScrollFrame,
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public nsIFormControlFrame,
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public nsIListControlFrame
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{
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public:
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friend nsresult NS_NewListControlFrame(nsIFrame** aNewFrame);
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// nsISupports
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NS_DECL_ISUPPORTS
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NS_IMETHOD GetFrameForPoint(const nsPoint& aPoint, nsIFrame** aFrame);
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NS_IMETHOD HandleEvent(nsIPresContext& aPresContext,
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nsGUIEvent* aEvent,
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nsEventStatus& aEventStatus);
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// nsIFrame
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NS_IMETHOD SetInitialChildList(nsIPresContext& aPresContext,
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nsIAtom* aListName,
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nsIFrame* aChildList);
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NS_IMETHOD Reflow(nsIPresContext& aCX,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus);
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NS_IMETHOD Init(nsIPresContext& aPresContext,
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nsIContent* aContent,
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nsIFrame* aParent,
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nsIStyleContext* aContext,
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nsIFrame* aPrevInFlow);
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NS_IMETHOD Deselect();
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// nsIFormControlFrame
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NS_IMETHOD SetProperty(nsIAtom* aName, const nsString& aValue);
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NS_IMETHOD GetProperty(nsIAtom* aName, nsString& aValue);
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NS_METHOD GetMultiple(PRBool* aResult, nsIDOMHTMLSelectElement* aSelect = nsnull);
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virtual nscoord GetVerticalInsidePadding(float aPixToTwip,
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nscoord aInnerHeight) const;
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virtual nscoord GetHorizontalInsidePadding(nsIPresContext& aPresContext,
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float aPixToTwip,
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nscoord aInnerWidth,
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nscoord aCharWidth) const;
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virtual nsresult RequiresWidget(PRBool &aRequiresWidget);
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NS_IMETHOD GetFont(nsIPresContext* aPresContext,
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nsFont& aFont);
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NS_IMETHOD GetFormContent(nsIContent*& aContent) const;
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/////////////////////////
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// nsHTMLContainerFrame
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/////////////////////////
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virtual PRIntn GetSkipSides() const;
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/////////////////////////
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// nsIFormControlFrame
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/////////////////////////
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NS_IMETHOD GetType(PRInt32* aType) const;
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NS_IMETHOD GetName(nsString* aName);
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virtual void SetFocus(PRBool aOn = PR_TRUE, PRBool aRepaint = PR_FALSE);
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virtual void MouseClicked(nsIPresContext* aPresContext);
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virtual void Reset();
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virtual PRBool IsSuccessful(nsIFormControlFrame* aSubmitter);
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virtual PRInt32 GetMaxNumValues();
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virtual PRBool GetNamesValues(PRInt32 aMaxNumValues, PRInt32& aNumValues,
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nsString* aValues, nsString* aNames);
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virtual void SetFormFrame(nsFormFrame* aFrame);
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// nsIListControlFrame
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NS_IMETHOD SetComboboxFrame(nsIFrame* aComboboxFrame);
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NS_IMETHOD GetSelectedItem(nsString & aStr);
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NS_IMETHOD AboutToDropDown();
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NS_IMETHOD CaptureMouseEvents(PRBool aGrabMouseEvents);
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// Static Methods
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static nsIDOMHTMLSelectElement* GetSelect(nsIContent * aContent);
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static nsIDOMHTMLCollection* GetOptions(nsIContent * aContent, nsIDOMHTMLSelectElement* aSelect = nsnull);
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static nsIDOMHTMLOptionElement* GetOption(nsIDOMHTMLCollection& aOptions, PRUint32 aIndex);
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static nsIContent* GetOptionAsContent(nsIDOMHTMLCollection* aCollection,PRUint32 aIndex);
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static PRBool GetOptionValue(nsIDOMHTMLCollection& aCollecton, PRUint32 aIndex, nsString& aValue);
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nsIContent* GetOptionContent(PRUint32 aIndex);
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PRBool IsContentSelected(nsIContent* aContent);
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PRBool IsFrameSelected(PRUint32 aIndex);
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void SetFrameSelected(PRUint32 aIndex, PRBool aSelected);
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protected:
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// nsScrollFrame overrides
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// Override the widget created for the list box so a Borderless top level widget is created
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// for drop-down lists.
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virtual nsresult CreateScrollingViewWidget(nsIView* aView,const nsStylePosition* aPosition);
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nsListControlFrame();
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virtual ~nsListControlFrame();
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PRInt32 GetNumberOfOptions();
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nsIFrame * GetOptionFromChild(nsIFrame* aParentFrame);
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nsresult GetFrameForPointUsing(const nsPoint& aPoint,
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nsIAtom* aList,
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nsIFrame** aFrame);
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// Utility methods
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PRBool IsInDropDownMode();
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PRBool IsOptionElement(nsIContent* aContent);
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PRBool IsOptionElementFrame(nsIFrame *aFrame);
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nsIFrame *GetSelectableFrame(nsIFrame *aFrame);
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void DisplaySelected(nsIContent* aContent);
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void DisplayDeselected(nsIContent* aContent);
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void ForceRedraw();
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PRBool IsOptionGroup(nsIFrame* aFrame);
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void SingleSelection();
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void MultipleSelection(PRBool aIsShift, PRBool aIsControl);
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void SelectIndex(PRInt32 aIndex);
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void ToggleSelected(PRInt32 aIndex);
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void ClearSelection();
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void InitializeFromContent();
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void ExtendedSelection(PRInt32 aStartIndex, PRInt32 aEndIndex, PRBool aDoInvert, PRBool aSetValue);
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NS_IMETHOD HandleLikeDropDownListEvent(nsIPresContext& aPresContext,
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nsGUIEvent* aEvent,
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nsEventStatus& aEventStatus);
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PRBool HasSameContent(nsIFrame* aFrame1, nsIFrame* aFrame2);
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void HandleListSelection(nsIPresContext& aPresContext,
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nsGUIEvent* aEvent,
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nsEventStatus& aEventStatus);
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NS_IMETHOD HandleLikeListEvent(nsIPresContext& aPresContext,
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nsGUIEvent* aEvent,
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nsEventStatus& aEventStatus);
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PRInt32 GetSelectedIndex(nsIFrame *aHitFrame);
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// Data Members
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nscoord mBorderOffsetY;
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nsFormFrame* mFormFrame;
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PRInt32 mNumRows;
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PRInt32 mNumSelections;
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PRBool mMultipleSelections;
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PRInt32 mSelectedIndex;
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PRInt32 mStartExtendedIndex;
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PRInt32 mEndExtendedIndex;
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nsIFrame* mHitFrame;
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PRBool mIsInitializedFromContent;
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nsIFrame* mContentFrame;
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nsIComboboxControlFrame *mComboboxFrame;
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PRBool mDisplayed;
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PRBool mButtonDown;
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nsIFrame* mLastFrame;
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};
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#endif /* nsListControlFrame_h___ */
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