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lightning-sunbird  0.9+nobinonly
Public Member Functions | Protected Member Functions | Protected Attributes
nsListItemCommand Class Reference

#include <nsComposerCommands.h>

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List of all members.

Public Member Functions

 nsListItemCommand (const char *aTagName)
NS_DECL_ISUPPORTS NS_IMETHOD IsCommandEnabled (const char *aCommandName, nsISupports *aCommandRefCon, PRBool *_retval)=0
NS_IMETHOD DoCommand (const char *aCommandName, nsISupports *aCommandRefCon)=0
boolean isCommandEnabled (in string aCommandName, in nsISupports aCommandContext)
 Returns true if the command is currently enabled.
void getCommandStateParams (in string aCommandName, in nsICommandParams aParams, in nsISupports aCommandContext)
void doCommand (in string aCommandName, in nsISupports aCommandContext)
 Execute the name command.
void doCommandParams (in string aCommandName, in nsICommandParams aParams, in nsISupports aCommandContext)

Protected Member Functions

virtual nsresult GetCurrentState (nsIEditor *aEditor, const char *aTagName, nsICommandParams *aParams)
virtual nsresult ToggleState (nsIEditor *aEditor, const char *aTagName)

Protected Attributes

const char * mTagName

Detailed Description

Definition at line 159 of file nsComposerCommands.h.


Constructor & Destructor Documentation

Definition at line 366 of file nsComposerCommands.cpp.


Member Function Documentation

NS_IMETHOD nsBaseComposerCommand::DoCommand ( const char *  aCommandName,
nsISupports *  aCommandRefCon 
) [pure virtual, inherited]
void nsIControllerCommand::doCommand ( in string  aCommandName,
in nsISupports  aCommandContext 
) [inherited]

Execute the name command.

Parameters:
aCommandNamethe name of the command to execute.
aCommandContexta cookie held by the nsIControllerCommandTable, allowing the command to get some context information. The contents of this cookie are implementation-defined.
void nsIControllerCommand::doCommandParams ( in string  aCommandName,
in nsICommandParams  aParams,
in nsISupports  aCommandContext 
) [inherited]
void nsIControllerCommand::getCommandStateParams ( in string  aCommandName,
in nsICommandParams  aParams,
in nsISupports  aCommandContext 
) [inherited]
nsresult nsListItemCommand::GetCurrentState ( nsIEditor aEditor,
const char *  aTagName,
nsICommandParams aParams 
) [protected, virtual]

Implements nsBaseStateUpdatingCommand.

Definition at line 372 of file nsComposerCommands.cpp.

{
  NS_ASSERTION(aEditor, "Need editor here");
  // 39584
  nsCOMPtr<nsIHTMLEditor>  htmlEditor = do_QueryInterface(aEditor);
  if (!htmlEditor)
    return NS_NOINTERFACE;

  PRBool bMixed, bLI, bDT, bDD;
  nsresult rv = htmlEditor->GetListItemState(&bMixed, &bLI, &bDT, &bDD);
  if (NS_FAILED(rv)) return rv;

  PRBool inList = PR_FALSE;
  if (!bMixed)
  {
    if (bLI) inList = (0 == nsCRT::strcmp(mTagName, "li"));
    else if (bDT) inList = (0 == nsCRT::strcmp(mTagName, "dt"));
    else if (bDD) inList = (0 == nsCRT::strcmp(mTagName, "dd"));
  }

  aParams->SetBooleanValue(STATE_ALL, !bMixed && inList);
  aParams->SetBooleanValue(STATE_MIXED, bMixed);

  return NS_OK;
}

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boolean nsIControllerCommand::isCommandEnabled ( in string  aCommandName,
in nsISupports  aCommandContext 
) [inherited]

Returns true if the command is currently enabled.

An nsIControllerCommand can implement more than one commands; say, a group of related commands (e.g. delete left/delete right). Because of this, the command name is passed to each method.

Parameters:
aCommandNamethe name of the command for which we want the enabled state.
aCommandContexta cookie held by the nsIControllerCommandTable, allowing the command to get some context information. The contents of this cookie are implementation-defined.
NS_DECL_ISUPPORTS NS_IMETHOD nsBaseComposerCommand::IsCommandEnabled ( const char *  aCommandName,
nsISupports *  aCommandRefCon,
PRBool _retval 
) [pure virtual, inherited]
nsresult nsListItemCommand::ToggleState ( nsIEditor aEditor,
const char *  aTagName 
) [protected, virtual]

Implements nsBaseStateUpdatingCommand.

Definition at line 400 of file nsComposerCommands.cpp.

{
  NS_ASSERTION(aEditor, "Need editor here");
  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
  if (!htmlEditor) return NS_ERROR_NOT_INITIALIZED;

  PRBool inList;
  // Need to use mTagName????
  nsresult rv;
  nsCOMPtr<nsICommandParams> params =
      do_CreateInstance(NS_COMMAND_PARAMS_CONTRACTID,&rv);
  if (NS_FAILED(rv) || !params)
    return rv;
  rv = GetCurrentState(aEditor, mTagName, params);
  rv = params->GetBooleanValue(STATE_ALL,&inList);
  if (NS_FAILED(rv)) 
    return rv;
  if (NS_FAILED(rv)) return rv;
  
  if (inList)
  {
    // To remove a list, first get what kind of list we're in
    PRBool bMixed;
    PRUnichar *tagStr;
    rv = GetListState(aEditor,&bMixed, &tagStr);
    if (NS_FAILED(rv)) return rv; 
    if (tagStr)
    {
      if (!bMixed)
      {
        rv = htmlEditor->RemoveList(nsDependentString(tagStr));    
      }
      NS_Free(tagStr);
    }
  }
  else
  {
    nsAutoString itemType; itemType.AssignWithConversion(mTagName);
    // Set to the requested paragraph type
    //XXX Note: This actually doesn't work for "LI",
    //    but we currently don't use this for non DL lists anyway.
    // Problem: won't this replace any current block paragraph style?
    rv = htmlEditor->SetParagraphFormat(itemType);
  }
    
  return rv;
}

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Member Data Documentation

const char* nsBaseStateUpdatingCommand::mTagName [protected, inherited]

Definition at line 104 of file nsComposerCommands.h.


The documentation for this class was generated from the following files: