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

#include <nsComposerCommands.h>

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List of all members.

Public Member Functions

 nsFontFaceStateCommand ()
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, nsICommandParams *aParams)
virtual nsresult SetState (nsIEditor *aEditor, nsString &newState)

Detailed Description

Definition at line 204 of file nsComposerCommands.h.


Constructor & Destructor Documentation

Definition at line 732 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 nsFontFaceStateCommand::GetCurrentState ( nsIEditor aEditor,
nsICommandParams aParams 
) [protected, virtual]

Implements nsMultiStateCommand.

Definition at line 738 of file nsComposerCommands.cpp.

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

  nsAutoString outStateString;
  PRBool outMixed;
  nsresult rv = htmlEditor->GetFontFaceState(&outMixed, outStateString);
  if (NS_SUCCEEDED(rv))
  {
    aParams->SetBooleanValue(STATE_MIXED,outMixed);
    aParams->SetCStringValue(STATE_ATTRIBUTE, NS_ConvertUTF16toUTF8(outStateString).get());
  }
  return rv;
}

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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 nsFontFaceStateCommand::SetState ( nsIEditor aEditor,
nsString newState 
) [protected, virtual]

Implements nsMultiStateCommand.

Definition at line 758 of file nsComposerCommands.cpp.

{
  NS_ASSERTION(aEditor, "Need an editor here");
  nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(aEditor);
  if (!htmlEditor) return NS_ERROR_FAILURE;
  
  nsresult rv;
  nsCOMPtr<nsIAtom> ttAtom = do_GetAtom("tt");
  nsCOMPtr<nsIAtom> fontAtom = do_GetAtom("font");

  if (newState.EqualsLiteral("tt"))
  {
    // The old "teletype" attribute  
    rv = htmlEditor->SetInlineProperty(ttAtom, EmptyString(), 
                                       EmptyString());  
    // Clear existing font face
    rv = htmlEditor->RemoveInlineProperty(fontAtom, NS_LITERAL_STRING("face"));
  }
  else
  {
    // Remove any existing TT nodes
    rv = htmlEditor->RemoveInlineProperty(ttAtom, EmptyString());  

    if (newState.IsEmpty() || newState.EqualsLiteral("normal")) {
      rv = htmlEditor->RemoveInlineProperty(fontAtom, NS_LITERAL_STRING("face"));
    } else {
      rv = htmlEditor->SetInlineProperty(fontAtom, NS_LITERAL_STRING("face"),
                                         newState);
    }
  }
  
  return rv;
}

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