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/*******************************************************************************
* Copyright (c) 2000, 2017 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* 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.
*
* A tab has the following lifecycle methods:
*
* setLaunchConfigurationDialog(ILaunchConfigurationDialog) -
* this is the first method called on a tab after it is instantiated.initializeFrom(ILaunchConfiguration) - called when a
* launch configuration is selected to be displayed.activated(ILaunchConfigurationWorkingCopy) - called when
* a tab is entered.deactivated(ILaunchConfigurationWorkingCopy) - called when
* a tab is exited.performApply(ILaunchConfigurationWorkingCopy) - called when
* a tab is to write its values to a launch configuration.dispose() - 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.
* The method setDefaults(ILaunchConfigurationWorkingCopy)
* can be called before a tab's controls are created.
*
* 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 activated and deactivated
* allow tabs to determine the appropriate course of action. The default implementation
* in AbstractLaunchConfigurationTab is to call the old methods
* (initializeFrom and performApply). Tabs should override
* the new methods as required.
*
*
* This interface is intended to be implemented by clients.
*
* @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 setLaunchConfigurationDialog
* is called.
*
* Implementors are responsible for ensuring that
* the created control can be accessed via getControl
*
*
* @param parent the parent composite
*/
void createControl(Composite parent);
/**
* Returns the top level control for this tab.
*
* May return null if the control
* has not been created yet.
*
*
* @return the top level control or null
*/
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
*/
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
*/
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.
*/
void dispose();
/**
* Copies values from this tab into the given
* launch configuration.
*
* @param configuration launch configuration
*/
void performApply(ILaunchConfigurationWorkingCopy configuration);
/**
* Returns the current error message for this tab.
* May be null to indicate no error message.
*
* An error message should describe some error state,
* as opposed to a message which may simply provide instruction
* or information to the user.
*
*
* @return the error message, or null if none
*/
String getErrorMessage();
/**
* Returns the current message for this tab.
*
* A message provides instruction or information to the
* user, as opposed to an error message which should
* describe some error state.
*
*
* @return the message, or null if none
*/
String getMessage();
/**
* Returns whether this tab is in a valid state in the context of the specified launch configuration.
*
* This information is typically used by the launch configuration
* dialog to decide when it is okay to launch.
*
*
* @param launchConfig launch configuration which provides context for validating this tab.
* This value must not be null.
*
* @return whether this tab is in a valid state
*/
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 isValid() in that canSave()
* determines if this tab prevents the current launch configuration from being saved, whereas
* isValid() determines if this tab prevents the current launch configuration from
* being launched.
*
*
* This information is typically used by the launch configuration
* dialog to decide when it is okay to save a launch configuration.
*
*
* @return whether this tab is in a state that allows the current launch configuration to be saved
*/
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
*/
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.
*/
@Deprecated void launched(ILaunch launch);
/**
* Returns the name of this tab.
*
* @return the name of this tab
*/
String getName();
/**
* Returns the image for this tab, or null if none
*
* @return the image for this tab, or null if none
*/
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
*/
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
*/
void deactivated(ILaunchConfigurationWorkingCopy workingCopy);
/**
* Checks if it is OK to leave the Tab.
*
* @return true if OK to leave the tab or false
* @since 3.12
*/
default boolean OkToLeaveTab() {
return true;
}
/**
* Perform the changes after apply.
*
* @since 3.12
*/
default void postApply() {
}
}