зеркало из https://github.com/mozilla/gecko-dev.git
100 строки
3.0 KiB
C++
100 строки
3.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsFormControlFrame_h___
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#define nsFormControlFrame_h___
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#include "mozilla/Attributes.h"
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#include "nsIFormControlFrame.h"
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#include "nsLeafFrame.h"
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/**
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* nsFormControlFrame is the base class for radio buttons and
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* checkboxes. It also has two static methods (RegUnRegAccessKey and
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* GetScreenHeight) that are used by other form controls.
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*/
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class nsFormControlFrame : public nsLeafFrame,
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public nsIFormControlFrame
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{
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public:
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/**
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* Main constructor
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* @param aContent the content representing this frame
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* @param aParentFrame the parent frame
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*/
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nsFormControlFrame(nsStyleContext*);
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virtual nsIAtom* GetType() const MOZ_OVERRIDE;
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virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE
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{
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return nsLeafFrame::IsFrameOfType(aFlags &
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~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
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}
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS
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/**
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* Respond to a gui event
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* @see nsIFrame::HandleEvent
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*/
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NS_IMETHOD HandleEvent(nsPresContext* aPresContext,
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mozilla::WidgetGUIEvent* aEvent,
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nsEventStatus* aEventStatus) MOZ_OVERRIDE;
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virtual nscoord GetBaseline() const MOZ_OVERRIDE;
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/**
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* Respond to the request to resize and/or reflow
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* @see nsIFrame::Reflow
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*/
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NS_IMETHOD Reflow(nsPresContext* aCX,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus) MOZ_OVERRIDE;
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virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
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// new behavior
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virtual void SetFocus(bool aOn = true, bool aRepaint = false) MOZ_OVERRIDE;
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// nsIFormControlFrame
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virtual nsresult SetFormProperty(nsIAtom* aName, const nsAString& aValue) MOZ_OVERRIDE;
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// AccessKey Helper function
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static nsresult RegUnRegAccessKey(nsIFrame * aFrame, bool aDoReg);
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/**
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* Returns the usable screen rect in app units, eg the rect where we can
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* draw dropdowns.
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*/
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static nsRect GetUsableScreenRect(nsPresContext* aPresContext);
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protected:
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virtual ~nsFormControlFrame();
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virtual nscoord GetIntrinsicWidth() MOZ_OVERRIDE;
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virtual nscoord GetIntrinsicHeight() MOZ_OVERRIDE;
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//
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//-------------------------------------------------------------------------------------
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// Utility methods for managing checkboxes and radiobuttons
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//-------------------------------------------------------------------------------------
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//
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/**
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* Get the state of the checked attribute.
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* @param aState set to true if the checked attribute is set,
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* false if the checked attribute has been removed
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*/
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void GetCurrentCheckState(bool* aState);
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};
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#endif
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