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143 lines
4.4 KiB
C++
143 lines
4.4 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 nsIFormControlFrame_h___
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#define nsIFormControlFrame_h___
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#include "nsISupports.h"
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#include "nsFont.h"
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class nsFormFrame;
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class nsIPresContext;
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class nsString;
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class nsIContent;
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// IID for the nsIFormControlFrame class
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#define NS_IFORMCONTROLFRAME_IID \
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{ 0x38eb3980, 0x4d99, 0x11d2, \
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{ 0x80, 0x3f, 0x0, 0x60, 0x8, 0x15, 0xa7, 0x91 } }
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/**
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* nsIFormControlFrame is the common interface for frames of form controls. It
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* provides a uniform way of creating widgets, resizing, and painting.
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* @see nsLeafFrame and its base classes for more info
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*/
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class nsIFormControlFrame : public nsISupports {
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public:
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NS_DEFINE_STATIC_IID_ACCESSOR(NS_IFORMCONTROLFRAME_IID)
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NS_IMETHOD GetType(PRInt32* aType) const = 0;
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NS_IMETHOD GetName(nsString* aName) = 0;
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virtual void SetFocus(PRBool aOn = PR_TRUE, PRBool aRepaint = PR_FALSE) = 0;
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virtual void ScrollIntoView(nsIPresContext* aPresContext) = 0;
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virtual void MouseClicked(nsIPresContext* aPresContext) = 0;
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virtual void Reset(nsIPresContext* aPresContext) = 0;
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virtual PRBool IsSuccessful(nsIFormControlFrame* aSubmitter) = 0;
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virtual PRInt32 GetMaxNumValues() = 0;
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virtual PRBool GetNamesValues(PRInt32 aMaxNumValues, PRInt32& aNumValues,
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nsString* aValues, nsString* aNames) = 0;
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virtual void SetFormFrame(nsFormFrame* aFrame) = 0;
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virtual nscoord GetVerticalInsidePadding(nsIPresContext& aPresContext,
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float aPixToTwip,
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nscoord aInnerHeight) const = 0;
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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 = 0;
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/**
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* Set the suggested size for the form element.
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* This is used to control the size of the element during reflow if it hasn't had it's size
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* explicitly set.
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* @param aWidth width of the form element
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* @param aHeight height of the form element
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* @returns NS_OK
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*/
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NS_IMETHOD SetSuggestedSize(nscoord aWidth, nscoord aHeight) = 0;
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/**
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* Determine if the control uses a native widget for rendering
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* @param aRequiresWidget is set to PR_TRUE if it has a native widget, PR_FALSE otherwise.
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* @returns NS_OK
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*/
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/**
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* Determine if the control uses a native widget for rendering
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* @param aRequiresWidget is set to PR_TRUE if it has a native widget, PR_FALSE otherwise.
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* @returns NS_OK
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*/
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virtual nsresult RequiresWidget(PRBool &aRequiresWidget) = 0;
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NS_IMETHOD GetFont(nsIPresContext* aPresContext,
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nsFont& aFont) = 0;
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/**
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* Get the content object associated with this frame. Adds a reference to
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* the content object so the caller must do a release.
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*
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* @see nsISupports#Release()
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*/
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NS_IMETHOD GetFormContent(nsIContent*& aContent) const = 0;
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/**
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* Set a property on the form control frame.
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*
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* @param aName name of the property to set
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* @param aValue value of the property
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* @returns NS_OK if the property name is valid, otherwise an error code
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*/
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NS_IMETHOD SetProperty(nsIPresContext* aPresContext, nsIAtom* aName, const nsString& aValue) = 0;
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/**
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* Get a property from the form control frame
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*
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* @param aName name of the property to get
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* @param aValue value of the property
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* @returns NS_OK if the property name is valid, otherwise an error code
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*/
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NS_IMETHOD GetProperty(nsIAtom* aName, nsString& aValue) = 0;
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};
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#endif
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