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/*******************************************************************************
* Copyright (c) 2000, 2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.debug.ui;
import org.eclipse.debug.core.ILaunch;
import org.eclipse.debug.core.ILaunchConfiguration;
import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
/**
* A launch configuration tab is used to edit/view attributes
* of a specific type of launch configuration. Launch
* configurations are presented in a dialog, with a tab folder.
* Each tab manipulates one ore more attributes of a launch
* configuration.
* <p>
* A tab has the following lifecycle methods:
* <ul>
* <li><code>setLaunchConfigurationDialog(ILaunchConfigurationDialog)</code> -
* this is the first method called on a tab after it is instantiated.</li>
* <li><code>initializeFrom(ILaunchConfiguration)</code> - called when a
* launch configuration is selected to be displayed.</li>
* <li><code>activated(ILaunchConfigurationWorkingCopy)</code> - called when
* a tab is entered.</li>
* <li><code>deactivated(ILaunchConfigurationWorkingCopy)</code> - called when
* a tab is exited.</li>
* <li><code>performApply(ILaunchConfigurationWorkingCopy)</code> - called when
* a tab is to write its values to a launch configuration.</li>
* <li><code>dispose()</code> - the last method called on a tab, when it is
* to perform any required cleanup. Note that a tab can be disposed before its control
* has been created.</li>
* </ul>
* The method <code>setDefaults(ILaunchConfigurationWorkingCopy)</code>
* can be called before a tab's controls are created.
* <p>
* The launch tab framework was originally designed to handle inter tab
* communication by applying attributes from the active tab to a launch configuration
* being edited, when a tab is exited, and by initializing a tab when activated.
* In 3.0, the addition of the methods <code>activated</code> and <code>deactivated</code>
* allow tabs to determine the appropriate course of action. The default implementation
* in <code>AbstractLaunchConfigurationTab</code> is to call the old methods
* (<code>initializeFrom</code> and <code>performApply</code>). Tabs should override
* the new methods as required.
* </p>
* <p>
* This interface is intended to be implemented by clients.
* </p>
* @see org.eclipse.debug.core.ILaunchConfigurationType
* @see org.eclipse.debug.core.ILaunchConfiguration
* @since 2.0
*/
public interface ILaunchConfigurationTab {
/**
* Creates the top level control for this launch configuration
* tab under the given parent composite. This method is called once on
* tab creation, after <code>setLaunchConfigurationDialog</code>
* is called.
* <p>
* Implementors are responsible for ensuring that
* the created control can be accessed via <code>getControl</code>
* </p>
*
* @param parent the parent composite
*/
public void createControl(Composite parent);
/**
* Returns the top level control for this tab.
* <p>
* May return <code>null</code> if the control
* has not been created yet.
* </p>
*
* @return the top level control or <code>null</code>
*/
public Control getControl();
/**
* Initializes the given launch configuration with
* default values for this tab. This method
* is called when a new launch configuration is created
* such that the configuration can be initialized with
* meaningful values. This method may be called before this
* tab's control is created.
*
* @param configuration launch configuration
*/
public void setDefaults(ILaunchConfigurationWorkingCopy configuration);
/**
* Initializes this tab's controls with values from the given
* launch configuration. This method is called when
* a configuration is selected to view or edit, after this
* tab's control has been created.
*
* @param configuration launch configuration
*/
public void initializeFrom(ILaunchConfiguration configuration);
/**
* Notifies this launch configuration tab that it has
* been disposed. Marks the end of this tab's lifecycle,
* allowing this tab to perform any cleanup required.
*/
public void dispose();
/**
* Copies values from this tab into the given
* launch configuration.
*
* @param configuration launch configuration
*/
public void performApply(ILaunchConfigurationWorkingCopy configuration);
/**
* Returns the current error message for this tab.
* May be <code>null</code> to indicate no error message.
* <p>
* An error message should describe some error state,
* as opposed to a message which may simply provide instruction
* or information to the user.
* </p>
*
* @return the error message, or <code>null</code> if none
*/
public String getErrorMessage();
/**
* Returns the current message for this tab.
* <p>
* A message provides instruction or information to the
* user, as opposed to an error message which should
* describe some error state.
* </p>
*
* @return the message, or <code>null</code> if none
*/
public String getMessage();
/**
* Returns whether this tab is in a valid state in the context of the specified launch configuration.
* <p>
* This information is typically used by the launch configuration
* dialog to decide when it is okay to launch.
* </p>
*
* @param launchConfig launch configuration which provides context for validating this tab.
* This value must not be <code>null</code>.
*
* @return whether this tab is in a valid state
*/
public boolean isValid(ILaunchConfiguration launchConfig);
/**
* Returns whether this tab is in a state that allows the launch configuration whose values
* this tab is showing to be saved. This differs from <code>isValid()</code> in that <code>canSave()</code>
* determines if this tab prevents the current launch configuration from being saved, whereas
* <code>isValid()</code> determines if this tab prevents the current launch configuration from
* being launched.
*
* <p>
* This information is typically used by the launch configuration
* dialog to decide when it is okay to save a launch configuration.
* </p>
*
* @return whether this tab is in a state that allows the current launch configuration to be saved
*/
public boolean canSave();
/**
* Sets the launch configuration dialog that hosts this tab.
* This is the first method called on a launch configuration
* tab, and marks the beginning of this tab's lifecycle.
*
* @param dialog launch configuration dialog
*/
public void setLaunchConfigurationDialog(ILaunchConfigurationDialog dialog);
/**
* Notifies this tab that the specified configuration has been
* launched, resulting in the given launch. This method can be
* called when a tab's control does not exist, to support single-click
* launching.
*
* @param launch the result of launching the current
* launch configuration
* @deprecated As of R3.0, this method is no longer called by the launch
* framework. Since tabs do not exist when launching is performed elsewhere
* than the launch dialog, this method cannot be relied upon for launching
* functionality.
*/
public void launched(ILaunch launch);
/**
* Returns the name of this tab.
*
* @return the name of this tab
*/
public String getName();
/**
* Returns the image for this tab, or <code>null</code> if none
*
* @return the image for this tab, or <code>null</code> if none
*/
public Image getImage();
/**
* Notification that this tab has become the active tab in the launch
* configuration dialog.
*
* @param workingCopy the launch configuration being edited
* @since 3.0
*/
public void activated(ILaunchConfigurationWorkingCopy workingCopy);
/**
* Notification that this tab is no longer the active tab in the launch
* configuration dialog.
*
* @param workingCopy the launch configuration being edited
* @since 3.0
*/
public void deactivated(ILaunchConfigurationWorkingCopy workingCopy);
}
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