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965ad980fb
on the content node which calls the frame. The frame is notified of Blur via thecontent node watching for NS_CONTENT_BLUR events. The rule we are removing from html.css is responsible for drawing in the focus, but it causes the combobox, the dropdown and all the options to have their style reresolved. Bug 32920, r=attinasi, b=buster
287 lines
12 KiB
C++
287 lines
12 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
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#ifndef nsComboboxControlFrame_h___
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#define nsComboboxControlFrame_h___
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#ifdef DEBUG_evaughan
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//#define DEBUG_rods
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#endif
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#ifdef DEBUG_rods
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//#define DO_REFLOW_DEBUG
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//#define DO_REFLOW_COUNTER
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//#define DO_UNCONSTRAINED_CHECK
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//#define DO_PIXELS
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//#define DO_NEW_REFLOW
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#endif
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#include "nsAreaFrame.h"
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#include "nsIFormControlFrame.h"
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#include "nsIComboboxControlFrame.h"
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#include "nsVoidArray.h"
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#include "nsIAnonymousContentCreator.h"
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#include "nsISelectControlFrame.h"
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#include "nsIStatefulFrame.h"
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#include "nsIRollupListener.h"
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#include "nsIPresState.h"
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#include "nsCSSFrameConstructor.h"
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#include "nsITextContent.h"
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class nsFormFrame;
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class nsIView;
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class nsStyleContext;
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class nsIHTMLContent;
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class nsIListControlFrame;
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/**
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* Child list name indices
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* @see #GetAdditionalChildListName()
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*/
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#define NS_COMBO_FRAME_POPUP_LIST_INDEX (NS_BLOCK_FRAME_ABSOLUTE_LIST_INDEX + 1)
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class nsComboboxControlFrame : public nsAreaFrame,
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public nsIFormControlFrame,
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public nsIComboboxControlFrame,
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public nsIAnonymousContentCreator,
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public nsISelectControlFrame,
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public nsIStatefulFrame,
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public nsIRollupListener
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{
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public:
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friend nsresult NS_NewComboboxControlFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame, PRUint32 aFlags);
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nsComboboxControlFrame();
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~nsComboboxControlFrame();
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// nsISupports
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NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
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// nsIAnonymousContentCreator
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NS_IMETHOD CreateAnonymousContent(nsIPresContext* aPresContext,
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nsISupportsArray& aChildList);
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NS_IMETHOD SetDocumentForAnonymousContent(nsIDocument* aDocument,
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PRBool aDeep,
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PRBool aCompileEventHandlers);
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NS_IMETHOD CreateFrameFor(nsIPresContext* aPresContext,
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nsIContent * aContent,
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nsIFrame** aFrame);
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// nsIFrame
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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 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 HandleEvent(nsIPresContext* aPresContext,
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nsGUIEvent* aEvent,
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nsEventStatus* aEventStatus);
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NS_IMETHOD Paint(nsIPresContext* aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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nsFramePaintLayer aWhichLayer);
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#ifdef NS_DEBUG
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NS_IMETHOD GetFrameName(nsString& aResult) const;
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#endif
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NS_IMETHOD Destroy(nsIPresContext* aPresContext);
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NS_IMETHOD FirstChild(nsIPresContext* aPresContext,
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nsIAtom* aListName,
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nsIFrame** aFirstChild) const;
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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 GetAdditionalChildListName(PRInt32 aIndex,
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nsIAtom** aListName) const;
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NS_IMETHOD GetFrameForPoint(nsIPresContext* aPresContext, const nsPoint& aPoint, nsFramePaintLayer aWhichLayer, nsIFrame** aFrame);
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// nsIFormControlFrame
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NS_IMETHOD SetSuggestedSize(nscoord aWidth, nscoord aHeight);
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NS_IMETHOD GetName(nsString* aName);
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NS_IMETHOD GetType(PRInt32* aType) const;
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NS_IMETHOD SetProperty(nsIPresContext* aPresContext, nsIAtom* aName, const nsAReadableString& aValue);
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NS_IMETHOD GetProperty(nsIAtom* aName, nsAWritableString& aValue);
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void SetFocus(PRBool aOn, PRBool aRepaint);
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void ScrollIntoView(nsIPresContext* aPresContext);
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virtual void InitializeControl(nsIPresContext* aPresContext);
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virtual PRBool IsSuccessful(nsIFormControlFrame* aSubmitter);
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virtual void SetFormFrame(nsFormFrame* aFormFrame) { mFormFrame = aFormFrame; }
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virtual void Reset(nsIPresContext* aPresContext);
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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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NS_IMETHOD GetFont(nsIPresContext* aPresContext,
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const nsFont*& aFont);
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NS_IMETHOD GetFormContent(nsIContent*& aContent) const;
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virtual nscoord GetVerticalBorderWidth(float aPixToTwip) const;
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virtual nscoord GetHorizontalBorderWidth(float aPixToTwip) const;
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virtual nscoord GetVerticalInsidePadding(nsIPresContext* aPresContext,
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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 SelectionChanged();// Called when the selection has changed.
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// If the the same item in the list is selected
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// it is NOT called.
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// nsIFormMouseListener
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virtual void MouseClicked(nsIPresContext* aPresContext);
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//nsIComboboxControlFrame
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NS_IMETHOD IsDroppedDown(PRBool * aDoDropDown) { *aDoDropDown = mDroppedDown; return NS_OK; }
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NS_IMETHOD ShowDropDown(PRBool aDoDropDown);
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NS_IMETHOD GetDropDown(nsIFrame** aDropDownFrame);
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NS_IMETHOD SetDropDown(nsIFrame* aDropDownFrame);
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NS_IMETHOD ListWasSelected(nsIPresContext* aPresContext, PRBool aForceUpdate);
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NS_IMETHOD UpdateSelection(PRBool aDoDispatchEvent, PRBool aForceUpdate, PRInt32 aNewIndex);
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NS_IMETHOD AbsolutelyPositionDropDown();
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NS_IMETHOD GetAbsoluteRect(nsRect* aRect);
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// nsISelectControlFrame
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NS_IMETHOD AddOption(nsIPresContext* aPresContext, PRInt32 index);
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NS_IMETHOD RemoveOption(nsIPresContext* aPresContext, PRInt32 index);
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NS_IMETHOD SetOptionSelected(PRInt32 aIndex, PRBool aValue);
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NS_IMETHOD GetOptionSelected(PRInt32 aIndex, PRBool* aValue);
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NS_IMETHOD DoneAddingContent(PRBool aIsDone);
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NS_IMETHOD OptionDisabled(nsIContent * aContent);
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//nsIStatefulFrame
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NS_IMETHOD GetStateType(nsIPresContext* aPresContext, nsIStatefulFrame::StateType* aStateType);
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NS_IMETHOD SaveState(nsIPresContext* aPresContext, nsIPresState** aState);
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NS_IMETHOD RestoreState(nsIPresContext* aPresContext, nsIPresState* aState);
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//nsIRollupListener
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// NS_DECL_NSIROLLUPLISTENER
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NS_IMETHOD Rollup();
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NS_IMETHOD ShouldRollupOnMouseWheelEvent(PRBool *aShouldRollup) { *aShouldRollup = PR_FALSE; return NS_OK;}
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//NS_IMETHOD ShouldRollupOnMouseWheelEvent(nsIWidget *aWidget, PRBool *aShouldRollup)
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//{ *aShouldRollup = PR_FALSE; return NS_OK;}
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NS_IMETHOD SetFrameConstructor(nsCSSFrameConstructor *aConstructor)
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{ mFrameConstructor = aConstructor; return NS_OK;} // not owner - do not addref!
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protected:
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NS_IMETHOD CreateDisplayFrame(nsIPresContext* aPresContext);
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#ifdef DO_NEW_REFLOW
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NS_IMETHOD ReflowItems(nsIPresContext* aPresContext,
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const nsHTMLReflowState& aReflowState,
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nsHTMLReflowMetrics& aDesiredSize);
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#endif
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// nsHTMLContainerFrame
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virtual PRIntn GetSkipSides() const;
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// Utilities
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nsresult ReflowComboChildFrame(nsIFrame* aFrame,
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nsIPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus,
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nscoord aAvailableWidth,
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nscoord aAvailableHeight);
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public:
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nsresult PositionDropdown(nsIPresContext* aPresContext,
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nscoord aHeight,
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nsRect aAbsoluteTwipsRect,
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nsRect aAbsolutePixelRect);
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protected:
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void ShowPopup(PRBool aShowPopup);
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void ShowList(nsIPresContext* aPresContext, PRBool aShowList);
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void SetChildFrameSize(nsIFrame* aFrame, nscoord aWidth, nscoord aHeight);
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void InitTextStr(nsIPresContext* aPresContext, PRBool aUpdate);
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nsresult GetPrimaryComboFrame(nsIPresContext* aPresContext, nsIContent* aContent, nsIFrame** aFrame);
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NS_IMETHOD ToggleList(nsIPresContext* aPresContext);
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NS_IMETHOD MakeSureSomethingIsSelected(nsIPresContext* aPresContext); // Default to option 0
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void ReflowCombobox(nsIPresContext * aPresContext,
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const nsHTMLReflowState& aReflowState,
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nsHTMLReflowMetrics& aDesiredSize,
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nsReflowStatus& aStatus,
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nsIFrame * aDisplayFrame,
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nsIFrame * aDropDownBtn,
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nscoord& aDisplayWidth,
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nscoord aBtnWidth,
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const nsMargin& aBorderPadding,
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nscoord aFallBackHgt = -1,
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PRBool aCheckHeight = PR_FALSE);
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nsFrameList mPopupFrames; // additional named child list
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nsIPresContext* mPresContext; // XXX: Remove the need to cache the pres context.
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nsFormFrame* mFormFrame; // Parent Form Frame
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nsString mTextStr; // Current Combo box selection
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PRInt32 mSelectedIndex; // current selected index
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nsCOMPtr<nsITextContent> mDisplayContent; // Anonymous content used to display the current selection
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PRPackedBool mDroppedDown; // Current state of the dropdown list, PR_TRUE is dropped down
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nsIFrame* mDisplayFrame; // frame to display selection
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nsIFrame* mButtonFrame; // button frame
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nsIFrame* mDropdownFrame; // dropdown list frame
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nsIFrame* mTextFrame; // display area frame
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nsIListControlFrame * mListControlFrame; // ListControl Interface for the dropdown frame
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nsCOMPtr<nsIPresState> mPresState; // Need cache state when list is null
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// Resize Reflow Optimization
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nsSize mCacheSize;
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nsSize mCachedMaxElementSize;
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nsSize mCachedAvailableSize;
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nsSize mCachedUncDropdownSize;
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nsSize mCachedUncComboSize;
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nscoord mItemDisplayWidth;
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//nscoord mItemDisplayHeight;
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nsCSSFrameConstructor* mFrameConstructor;
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PRPackedBool mGoodToGo;
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// static class data member for Bug 32920
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// only one control can be focused at a time
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static nsComboboxControlFrame * mFocused;
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#ifdef DO_REFLOW_COUNTER
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PRInt32 mReflowId;
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#endif
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private:
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NS_IMETHOD_(nsrefcnt) AddRef() { return NS_OK; }
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NS_IMETHOD_(nsrefcnt) Release() { return NS_OK; }
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};
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#endif
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