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Eclipse Platform
Release 3.0

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org.eclipse.ui.dialogs
Class WizardNewFileCreationPage

java.lang.Object
  org.eclipse.jface.dialogs.DialogPage
      org.eclipse.jface.wizard.WizardPage
          org.eclipse.ui.dialogs.WizardNewFileCreationPage

All Implemented Interfaces:

IDialogPage, IMessageProvider, IWizardPage, Listener

public class WizardNewFileCreationPage

extends WizardPage

implements Listener

Standard main page for a wizard that creates a file resource.

This page may be used by clients as-is; it may be also be subclassed to suit.

Subclasses may override

• getInitialContents
• getNewFileLabel

Subclasses may extend

• handleEvent

Field Summary

Fields inherited from interface org.eclipse.jface.dialogs.IMessageProvider

ERROR, INFORMATION, NONE, WARNING

Constructor Summary

WizardNewFileCreationPage(String pageName, IStructuredSelection selection)
Creates a new file creation wizard page.

Method Summary

protected void	createAdvancedControls(Composite parent) Creates the widget for advanced options.
void	createControl(Composite parent) (non-Javadoc) Method declared on IDialogPage.
protected void	createFile(IFile fileHandle, InputStream contents, IProgressMonitor monitor) Creates a file resource given the file handle and contents.
protected IFile	createFileHandle(IPath filePath) Creates a file resource handle for the file with the given workspace path.
protected void	createLinkTarget() Creates the link target path if a link target has been specified.
IFile	createNewFile() Creates a new file resource in the selected container and with the selected name.
IPath	getContainerFullPath() Returns the current full path of the containing resource as entered or selected by the user, or its anticipated initial value.
String	getFileName() Returns the current file name as entered by the user, or its anticipated initial value.
protected InputStream	getInitialContents() Returns a stream containing the initial contents to be given to new file resource instances.
protected String	getNewFileLabel() Returns the label to display in the file name specification visual component group.
protected void	handleAdvancedButtonSelect() Shows/hides the advanced option widgets.
void	handleEvent(Event event) The WizardNewFileCreationPage implementation of this Listener method handles all events and enablements for controls on this page.
protected void	initialPopulateContainerNameField() Sets the initial contents of the container name entry field, based upon either a previously-specified initial value or the ability to determine such a value.
void	setContainerFullPath(IPath path) Sets the value of this page's container name field, or stores it for future use if this page's controls do not exist yet.
void	setFileName(String value) Sets the value of this page's file name field, or stores it for future use if this page's controls do not exist yet.
void	setVisible(boolean visible) Sets the visibility of this dialog page.
protected IStatus	validateLinkedResource() Checks whether the linked resource target is valid.
protected boolean	validatePage() Returns whether this page's controls currently all contain valid values.

Methods inherited from class org.eclipse.jface.wizard.WizardPage

canFlipToNextPage, getContainer, getDialogSettings, getImage, getName, getNextPage, getPreviousPage, getShell, getWizard, isCurrentPage, isPageComplete, setDescription, setErrorMessage, setImageDescriptor, setMessage, setPageComplete, setPreviousPage, setTitle, setWizard, toString

Methods inherited from class org.eclipse.jface.dialogs.DialogPage

convertHeightInCharsToPixels, convertHorizontalDLUsToPixels, convertVerticalDLUsToPixels, convertWidthInCharsToPixels, dispose, getControl, getDescription, getDialogFontName, getErrorMessage, getFont, getMessage, getMessageType, getTitle, getToolTipText, initializeDialogUnits, isControlCreated, performHelp, setButtonLayoutData, setControl, setMessage

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.eclipse.jface.dialogs.IDialogPage

dispose, getControl, getDescription, getErrorMessage, getMessage, getTitle, performHelp

Constructor Detail

WizardNewFileCreationPage

public WizardNewFileCreationPage(String pageName,
                                 IStructuredSelection selection)

Creates a new file creation wizard page. If the initial resource selection contains exactly one container resource then it will be used as the default container resource.

Parameters:

pageName - the name of the page

selection - the current resource selection

Method Detail

createAdvancedControls

protected void createAdvancedControls(Composite parent)

Creates the widget for advanced options.

Parameters:

parent - the parent composite

createControl

public void createControl(Composite parent)

(non-Javadoc) Method declared on IDialogPage.

Specified by:

createControl in interface IDialogPage

Parameters:

parent - the parent composite

createFile

protected void createFile(IFile fileHandle,
                          InputStream contents,
                          IProgressMonitor monitor)
                   throws CoreException

Creates a file resource given the file handle and contents.

Parameters:

fileHandle - the file handle to create a file resource with

contents - the initial contents of the new file resource, or null if none (equivalent to an empty stream)

monitor - the progress monitor to show visual progress with

Throws:

CoreException - if the operation fails

OperationCanceledException - if the operation is canceled

createFileHandle

protected IFile createFileHandle(IPath filePath)

Creates a file resource handle for the file with the given workspace path. This method does not create the file resource; this is the responsibility of createFile.

Parameters:

filePath - the path of the file resource to create a handle for

Returns:

the new file resource handle

See Also:

createFile(org.eclipse.core.resources.IFile, java.io.InputStream, org.eclipse.core.runtime.IProgressMonitor)

createLinkTarget

protected void createLinkTarget()

Creates the link target path if a link target has been specified.

createNewFile

public IFile createNewFile()

Creates a new file resource in the selected container and with the selected name. Creates any missing resource containers along the path; does nothing if the container resources already exist.

In normal usage, this method is invoked after the user has pressed Finish on the wizard; the enablement of the Finish button implies that all controls on on this page currently contain valid values.

Note that this page caches the new file once it has been successfully created; subsequent invocations of this method will answer the same file resource without attempting to create it again.

This method should be called within a workspace modify operation since it creates resources.

Returns:

the created file resource, or null if the file was not created

getContainerFullPath

public IPath getContainerFullPath()

Returns the current full path of the containing resource as entered or selected by the user, or its anticipated initial value.

Returns:

the container's full path, anticipated initial value, or null if no path is known

getFileName

public String getFileName()

Returns the current file name as entered by the user, or its anticipated initial value.

Returns:

the file name, its anticipated initial value, or null if no file name is known

getInitialContents

protected InputStream getInitialContents()

Returns a stream containing the initial contents to be given to new file resource instances. Subclasses may wish to override. This default implementation provides no initial contents.

Returns:

initial contents to be given to new file resource instances

getNewFileLabel

protected String getNewFileLabel()

Returns the label to display in the file name specification visual component group.

Subclasses may reimplement.

Returns:

the label to display in the file name specification visual component group

handleAdvancedButtonSelect

protected void handleAdvancedButtonSelect()

Shows/hides the advanced option widgets.

handleEvent

public void handleEvent(Event event)

The WizardNewFileCreationPage implementation of this Listener method handles all events and enablements for controls on this page. Subclasses may extend.

Specified by:

handleEvent in interface Listener

Parameters:

event - the event which occurred

initialPopulateContainerNameField

protected void initialPopulateContainerNameField()

Sets the initial contents of the container name entry field, based upon either a previously-specified initial value or the ability to determine such a value.

setContainerFullPath

public void setContainerFullPath(IPath path)

Sets the value of this page's container name field, or stores it for future use if this page's controls do not exist yet.

Parameters:

path - the full path to the container

setFileName

public void setFileName(String value)

Sets the value of this page's file name field, or stores it for future use if this page's controls do not exist yet.

Parameters:

value - new file name

validateLinkedResource

protected IStatus validateLinkedResource()

Checks whether the linked resource target is valid. Sets the error message accordingly and returns the status.

Returns:

IStatus validation result from the CreateLinkedResourceGroup

validatePage

protected boolean validatePage()

Returns whether this page's controls currently all contain valid values.

Returns:

true if all controls are valid, and false if at least one is invalid

setVisible

public void setVisible(boolean visible)

Description copied from interface: IDialogPage

Sets the visibility of this dialog page.

Specified by:

setVisible in interface IDialogPage

Overrides:

setVisible in class DialogPage