Eclipse Plug-in Developer Guide (Galileo) - ActivitiesPreferencePage (Eclipse Platform API Specification)

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Eclipse Platform
Release 3.5

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org.eclipse.ui.activities
Class ActivitiesPreferencePage


java.lang.Object
  

org.eclipse.jface.dialogs.DialogPage
      

org.eclipse.jface.preference.PreferencePage
          
org.eclipse.ui.activities.ActivitiesPreferencePage

All Implemented Interfaces:: IExecutableExtension, IDialogPage, IMessageProvider, IPreferencePage, IWorkbenchPreferencePage

public final class ActivitiesPreferencePage
extends PreferencePage
implements IWorkbenchPreferencePage, IExecutableExtension
extends PreferencePage
implements IWorkbenchPreferencePage, IExecutableExtension

Preference page that allows configuration of the activity set. This page may be used by product developers to provide basic ability to tweak the enabled activity set. You may provide the certain strings to this class via method #2 of IExecutableExtension.

Since:: 3.1
See Also:: ACTIVITY_NAME, ACTIVITY_PROMPT_BUTTON, ACTIVITY_PROMPT_BUTTON_TOOLTIP

Field Summary

static String ACTIVITY_NAME
          The name to use for the activities.

static String ACTIVITY_PROMPT_BUTTON
          The label to be used for the prompt button.

static String ACTIVITY_PROMPT_BUTTON_TOOLTIP
          The tooltip to be used for the prompt button.

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

ERROR, INFORMATION, NONE, WARNING

Constructor Summary

ActivitiesPreferencePage ()


Method Summary

protected void createActivityPromptPref ( Composite composite)
          Create the prompt for activity enablement.

protected Control createContents ( Composite parent)
          Creates and returns the SWT control for the customized body of this preference page under the given parent composite.

void init ( IWorkbench aWorkbench)
          Initializes this preference page for the given workbench.

protected void performDefaults ()
          Performs special processing when this page's Defaults button has been pressed.

boolean performOk ()
          Notifies that the OK button of this page's container has been pressed.

void setInitializationData ( IConfigurationElement config, String propertyName, Object data)
          This method is called by the implementation of the method IConfigurationElement.createExecutableExtension on a newly constructed extension, passing it its relevant configuration information.

Methods inherited from class org.eclipse.jface.preference. PreferencePage

applyData, applyDialogFont, computeSize, contributeButtons, createControl, createDescriptionLabel, createNoteComposite, doComputeSize, doGetPreferenceStore, getApplyButton, getContainer, getDefaultsButton, getPreferenceStore, isValid, noDefaultAndApplyButton, okToLeave, performApply, performCancel, performHelp, setContainer, setErrorMessage, setMessage, setPreferenceStore, setSize, setTitle, setValid, toString, updateApplyButton

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

convertHeightInCharsToPixels, convertHorizontalDLUsToPixels, convertVerticalDLUsToPixels, convertWidthInCharsToPixels, dispose, getControl, getDescription, getDialogFontName, getErrorMessage, getFont, getImage, getMessage, getMessageType, getShell, getTitle, getToolTipText, initializeDialogUnits, isControlCreated, setButtonLayoutData, setControl, setDescription, setImageDescriptor, setMessage, setVisible

Methods inherited from class java.lang. Object

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

Methods inherited from interface org.eclipse.jface.preference. IPreferencePage

computeSize, isValid, okToLeave, performCancel, setContainer, setSize

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

createControl, dispose, getControl, getDescription, getErrorMessage, getImage, getMessage, getTitle, performHelp, setDescription, setImageDescriptor, setTitle, setVisible

Field Detail

ACTIVITY_NAME

public static final 
String ACTIVITY_NAME

The name to use for the activities. Ie: "Capabilities".

See Also:: Constant Field Values

ACTIVITY_PROMPT_BUTTON

public static final 
String ACTIVITY_PROMPT_BUTTON

The label to be used for the prompt button. Ie: "&Prompt when enabling capabilities".

See Also:: Constant Field Values

ACTIVITY_PROMPT_BUTTON_TOOLTIP

public static final 
String ACTIVITY_PROMPT_BUTTON_TOOLTIP

The tooltip to be used for the prompt button. Ie: "Prompt when a feature is first used that requires enablement of capabilities".

See Also:: Constant Field Values

Constructor Detail

ActivitiesPreferencePage

public ActivitiesPreferencePage()

Method Detail

createActivityPromptPref

protected void createActivityPromptPref(
Composite composite)

Create the prompt for activity enablement.

Parameters:: composite - the parent

createContents

protected 
Control createContents(
Composite parent)

Description copied from class: PreferencePage

Creates and returns the SWT control for the customized body of this preference page under the given parent composite.

This framework method must be implemented by concrete subclasses. Any subclass returning a Composite object whose Layout has default margins (for example, a GridLayout) are expected to set the margins of this Layout to 0 pixels.

Specified by:: createContents in class PreferencePage

Parameters:: parent - the parent composite
Returns:: the new control

init

public void init(
IWorkbench aWorkbench)

Description copied from interface: IWorkbenchPreferencePage

Initializes this preference page for the given workbench.

This method is called automatically as the preference page is being created and initialized. Clients must not call this method.

Specified by:: init in interface IWorkbenchPreferencePage

Parameters:: aWorkbench - the workbench

performOk

public boolean performOk()

Description copied from interface: IPreferencePage

Notifies that the OK button of this page's container has been pressed.

Specified by:: performOk in interface IPreferencePage
Overrides:: performOk in class PreferencePage

Returns:: false to abort the container's OK processing and true to allow the OK to happen

performDefaults

protected void performDefaults()

Description copied from class: PreferencePage

Performs special processing when this page's Defaults button has been pressed.

This is a framework hook method for subclasses to do special things when the Defaults button has been pressed. Subclasses may override, but should call super.performDefaults.

Overrides:: performDefaults in class PreferencePage

setInitializationData

public void setInitializationData(
IConfigurationElement config,
                                  
String propertyName,
                                  
Object data)

Description copied from interface: IExecutableExtension

This method is called by the implementation of the method IConfigurationElement.createExecutableExtension on a newly constructed extension, passing it its relevant configuration information. Most executable extensions only make use of the first two call arguments.

Regular executable extensions specify their Java implementation class name as an attribute of the configuration element for the extension. For example

     <action run="com.example.BaseAction"/>

In the above example, this method would be called with a reference to the <action> element (first argument), and "run" as the name of the attribute that defined this executable extension (second argument).

The last parameter is for the specific use of extension adapters and is typically not used by regular executable extensions.

There are two supported ways of associating additional adapter-specific data with the configuration in a way that is transparent to the extension point implementor:

(1) by specifying adapter data as part of the implementation class attribute value. The Java class name can be followed by a ":" separator, followed by any adapter data in string form. For example, if the extension point specifies an attribute "run" to contain the name of the extension implementation, an adapter can be configured as

     <action run="com.example.ExternalAdapter:./cmds/util.exe -opt 3"/>

(2) by converting the attribute used to specify the executable extension to a child element of the original configuration element, and specifying the adapter data in the form of xml markup. Using this form, the example above would become

     <action>
         <run class="com.xyz.ExternalAdapter">
             <parameter name="exec" value="./cmds/util.exe"/>
             <parameter name="opt"  value="3"/>
         </run>
     </action>

Form (2) will typically only be used for extension points that anticipate the majority of extensions configured into it will in fact be in the form of adapters.

In either case, the specified adapter class is instantiated using its 0-argument public constructor. The adapter data is passed as the last argument of this method. The data argument is defined as Object. It can have the following values:

null, if no adapter data was supplied
in case (1), the initialization data string is passed as a String
in case (2), the initialization data is passed as a Hashtable containing the actual parameter names and values (both Strings)

Specified by:: setInitializationData in interface IExecutableExtension

Parameters:: config - the configuration element used to trigger this execution. It can be queried by the executable extension for specific configuration properties; propertyName - the name of an attribute of the configuration element used on the createExecutableExtension(String) call. This argument can be used in the cases where a single configuration element is used to define multiple executable extensions.; data - adapter data in the form of a String, a Hashtable, or null.
See Also:: IConfigurationElement.createExecutableExtension(String)