/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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/MPL/
*
* 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.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsTextControlFrame_h___
#define nsTextControlFrame_h___
#include "nsStackFrame.h"
#include "nsAreaFrame.h"
#include "nsIFormControlFrame.h"
#include "nsIDOMMouseListener.h"
#include "nsIAnonymousContentCreator.h"
#include "nsIEditor.h"
#include "nsITextControlFrame.h"
#include "nsIFontMetrics.h"
#include "nsWeakReference.h" //for service and presshell pointers
#include "nsIScrollableViewProvider.h"
#include "nsIPhonetic.h"
#include "nsContentUtils.h"
#include "nsDisplayList.h"
class nsISupportsArray;
class nsIEditor;
class nsISelectionController;
class nsTextInputSelectionImpl;
class nsTextInputListener;
class nsIDOMCharacterData;
class nsIScrollableView;
#ifdef ACCESSIBILITY
class nsIAccessible;
#endif
class nsTextControlFrame : public nsStackFrame,
public nsIAnonymousContentCreator,
public nsITextControlFrame,
public nsIScrollableViewProvider,
public nsIPhonetic
{
public:
nsTextControlFrame(nsIPresShell* aShell, nsStyleContext* aContext);
virtual ~nsTextControlFrame();
virtual void RemovedAsPrimaryFrame();
virtual void Destroy();
NS_IMETHOD Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
NS_IMETHOD GetPrefSize(nsBoxLayoutState& aBoxLayoutState, nsSize& aSize);
NS_IMETHOD GetMinSize(nsBoxLayoutState& aBoxLayoutState, nsSize& aSize);
NS_IMETHOD GetMaxSize(nsBoxLayoutState& aBoxLayoutState, nsSize& aSize);
NS_IMETHOD GetAscent(nsBoxLayoutState& aBoxLayoutState, nscoord& aAscent);
DECL_DO_GLOBAL_REFLOW_COUNT_DSP(nsTextControlFrame, nsStackFrame)
virtual PRBool IsLeaf() const;
#ifdef ACCESSIBILITY
NS_IMETHOD GetAccessible(nsIAccessible** aAccessible);
#endif
#ifdef NS_DEBUG
NS_IMETHOD GetFrameName(nsAString& aResult) const
{
aResult.AssignLiteral("nsTextControlFrame");
return NS_OK;
}
#endif
// from nsIAnonymousContentCreator
NS_IMETHOD CreateAnonymousContent(nsPresContext* aPresContext,
nsISupportsArray& aChildList);
NS_IMETHOD CreateFrameFor(nsPresContext* aPresContext,
nsIContent * aContent,
nsIFrame** aFrame);
virtual void PostCreateFrames();
// Utility methods to set current widget state
void SetValue(const nsAString& aValue);
NS_IMETHOD SetInitialChildList(nsIAtom* aListName,
nsIFrame* aChildList);
//==== BEGIN NSIFORMCONTROLFRAME
virtual void SetFocus(PRBool aOn , PRBool aRepaint);
virtual nsresult SetFormProperty(nsIAtom* aName, const nsAString& aValue);
virtual nsresult GetFormProperty(nsIAtom* aName, nsAString& aValue) const;
//==== END NSIFORMCONTROLFRAME
//==== NSIGFXTEXTCONTROLFRAME2
NS_IMETHOD GetEditor(nsIEditor **aEditor);
NS_IMETHOD OwnsValue(PRBool* aOwnsValue);
NS_IMETHOD GetValue(nsAString& aValue, PRBool aIgnoreWrap) const;
NS_IMETHOD GetTextLength(PRInt32* aTextLength);
NS_IMETHOD CheckFireOnChange();
NS_IMETHOD SetSelectionStart(PRInt32 aSelectionStart);
NS_IMETHOD SetSelectionEnd(PRInt32 aSelectionEnd);
NS_IMETHOD SetSelectionRange(PRInt32 aSelectionStart, PRInt32 aSelectionEnd);
NS_IMETHOD GetSelectionRange(PRInt32* aSelectionStart, PRInt32* aSelectionEnd);
virtual nsISelectionController* GetOwnedSelectionController()
{ return mSelCon; }
virtual nsFrameSelection* GetOwnedFrameSelection()
{ return mFrameSel; }
// nsIPhonetic
NS_DECL_NSIPHONETIC
//==== END NSIGFXTEXTCONTROLFRAME2
//==== OVERLOAD of nsIFrame
virtual nsIAtom* GetType() const;
/** handler for attribute changes to mContent */
NS_IMETHOD AttributeChanged(PRInt32 aNameSpaceID,
nsIAtom* aAttribute,
PRInt32 aModType);
NS_IMETHOD GetText(nsString* aText);
NS_DECL_ISUPPORTS_INHERITED
public: //for methods who access nsTextControlFrame directly
/**
* Find out whether this is a single line text control. (text or password)
* @return whether this is a single line text control
*/
PRBool IsSingleLineTextControl() const;
/**
* Find out whether this control is a textarea.
* @return whether this is a textarea text control
*/
PRBool IsTextArea() const;
/**
* Find out whether this control edits plain text. (Currently always true.)
* @return whether this is a plain text control
*/
PRBool IsPlainTextControl() const;
/**
* Find out whether this is a password control (input type=password)
* @return whether this is a password ontrol
*/
PRBool IsPasswordTextControl() const;
void FireOnInput();
void SetValueChanged(PRBool aValueChanged);
/** Called when the frame is focused, to remember the value for onChange. */
nsresult InitFocusedValue();
nsresult DOMPointToOffset(nsIDOMNode* aNode, PRInt32 aNodeOffset, PRInt32 *aResult);
nsresult OffsetToDOMPoint(PRInt32 aOffset, nsIDOMNode** aResult, PRInt32* aPosition);
void SetHasFocus(PRBool aHasFocus)
{
mHasFocus = aHasFocus;
};
PRBool GetHasFocus() const
{
return mHasFocus;
}
/* called to free up native keybinding services */
static NS_HIDDEN_(void) ShutDown();
protected:
/**
* Find out whether this control is scrollable (i.e. if it is not a single
* line text control)
* @return whether this control is scrollable
*/
PRBool IsScrollable() const;
/**
* Initialize mEditor with the proper flags and the default value.
* @throws NS_ERROR_NOT_INITIALIZED if mEditor has not been created
* @throws various and sundry other things
*/
nsresult InitEditor();
/**
* Strip all \n, \r and nulls from the given string
* @param aString the string to remove newlines from [in/out]
*/
void RemoveNewlines(nsString &aString);
/**
* Get the maxlength attribute
* @param aMaxLength the value of the max length attr
* @returns PR_FALSE if attr not defined
*/
PRBool GetMaxLength(PRInt32* aMaxLength);
/**
* Find out whether an attribute exists on the content or not.
* @param aAtt the attribute to determine the existence of
* @returns PR_FALSE if it does not exist
*/
PRBool AttributeExists(nsIAtom *aAtt) const
{ return mContent && mContent->HasAttr(kNameSpaceID_None, aAtt); }
/**
* We call this when we are being destroyed or removed from the PFM.
* @param aPresContext the current pres context
*/
void PreDestroy();
/**
* Fire the onChange event.
*/
// Helper methods
/**
* Get the cols attribute (if textarea) or a default
* @return the number of columns to use
*/
PRInt32 GetCols();
/**
* Get the rows attribute (if textarea) or a default
* @return the number of rows to use
*/
PRInt32 GetRows();
nsresult ReflowStandard(nsPresContext* aPresContext,
nsSize& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
nsresult CalculateSizeStandard(nsPresContext* aPresContext,
const nsHTMLReflowState& aReflowState,
nsSize& aDesiredSize,
nsSize& aMinSize);
// nsIScrollableViewProvider
virtual nsIScrollableView* GetScrollableView();
private:
//helper methods
nsresult SetSelectionInternal(nsIDOMNode *aStartNode, PRInt32 aStartOffset,
nsIDOMNode *aEndNode, PRInt32 aEndOffset);
nsresult SelectAllContents();
nsresult SetSelectionEndPoints(PRInt32 aSelStart, PRInt32 aSelEnd);
private:
nsCOMPtr<nsIEditor> mEditor;
//cached sizes and states
nsSize mSize;
// these packed bools could instead use the high order bits on mState, saving 4 bytes
PRPackedBool mUseEditor;
PRPackedBool mIsProcessing;
PRPackedBool mNotifyOnInput;//default this to off to stop any notifications until setup is complete
PRPackedBool mDidPreDestroy; // has PreDestroy been called
PRPackedBool mHasFocus;
nsCOMPtr<nsISelectionController> mSelCon;
nsCOMPtr<nsFrameSelection> mFrameSel;
nsTextInputListener* mTextListener;
// XXX This seems unsafe; what's keeping it around?
nsIScrollableView *mScrollableView;
nsString mFocusedValue;
#ifdef DEBUG
PRBool mCreateFrameForCalled;
#endif
};
#endif