layout/forms/nsITextControlFrame.h
author Chris Jones <jones.chris.g@gmail.com>
Wed, 05 Oct 2011 15:15:45 -0700
changeset 78181 7e1f77774d9eee2b3d1b6b6baaa0c4656bfa5b0d
parent 73510 e0c9fca2f500331658650baad2dc31dbaff5cfba
child 93361 ba79daeeb874e35f1d631b8dccd9521d0f683fa4
permissions -rw-r--r--
Bug 690670, parts 1 and 2: Add a hal/ directory in which we can add device-interaction code, and build goop thereto. r=khuey sr=roc

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * for the specific language governing rights and limitations under the
 * License.
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 * The Original Code is Mozilla Communicator client code.
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#ifndef nsITextControlFrame_h___
#define nsITextControlFrame_h___
 
#include "nsIFormControlFrame.h"

class nsIEditor;
class nsIDocShell;
class nsISelectionController;
class nsFrameSelection;

class nsITextControlFrame : public nsIFormControlFrame
{
public:
  NS_DECL_QUERYFRAME_TARGET(nsITextControlFrame)

  enum SelectionDirection {
    eNone,
    eForward,
    eBackward
  };

  NS_IMETHOD    GetEditor(nsIEditor **aEditor) = 0;

  NS_IMETHOD    GetTextLength(PRInt32* aTextLength) = 0;
  
  /**
   * Fire onChange if the value has changed since it was focused or since it
   * was last fired.
   */
  NS_IMETHOD    CheckFireOnChange() = 0;
  NS_IMETHOD    SetSelectionStart(PRInt32 aSelectionStart) = 0;
  NS_IMETHOD    SetSelectionEnd(PRInt32 aSelectionEnd) = 0;
  
  NS_IMETHOD    SetSelectionRange(PRInt32 aSelectionStart,
                                  PRInt32 aSelectionEnd,
                                  SelectionDirection aDirection = eNone) = 0;
  NS_IMETHOD    GetSelectionRange(PRInt32* aSelectionStart,
                                  PRInt32* aSelectionEnd,
                                  SelectionDirection* aDirection = nsnull) = 0;

  NS_IMETHOD    GetOwnedSelectionController(nsISelectionController** aSelCon) = 0;
  virtual nsFrameSelection* GetOwnedFrameSelection() = 0;

  virtual nsresult GetPhonetic(nsAString& aPhonetic) = 0;

  /**
   * Ensure editor is initialized 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
   */
  virtual nsresult EnsureEditorInitialized() = 0;

  virtual nsresult ScrollSelectionIntoView() = 0;
};

#endif