/*******************************************************************************
 * Copyright (c) 2000, 2008 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
 *     Kiryl Kazakevich, Intel - bug 88359
 *     Tonny Madsen, RCP Company - bug 201055
 *******************************************************************************/
package org.eclipse.ui;

import org.eclipse.swt.SWT;

/**
 * Preference ids exposed by the Eclipse Platform User Interface. These
 * preference settings can be obtained from the UI plug-in's preference store.
 * <p>
 * <b>Note:This interface should not be implemented or extended.
 * </p>
 * 
 * @see PlatformUI#PLUGIN_ID
 * @see PlatformUI#getPreferenceStore()
 * @noimplement This interface is not intended to be implemented by clients.
 */
public interface IWorkbenchPreferenceConstants {

	/**
	 * A named preference for whether to show an editor when its input file is
	 * selected in the Navigator (and vice versa).
	 * <p>
	 * Value is of type <code>boolean.
	 * </p>
	 */
	public static final String LINK_NAVIGATOR_TO_EDITOR = "LINK_NAVIGATOR_TO_EDITOR"; //$NON-NLS-1$

	/**
	 * A named preference for how a new perspective is opened.
	 * <p>
	 * Value is of type <code>String. The possible values are defined
	 * by <code>OPEN_PERSPECTIVE_WINDOW, OPEN_PERSPECTIVE_PAGE and 
	 * OPEN_PERSPECTIVE_REPLACE</code>.
	 * </p>
	 * 
	 * @see #OPEN_PERSPECTIVE_WINDOW
	 * @see #OPEN_PERSPECTIVE_PAGE
	 * @see #OPEN_PERSPECTIVE_REPLACE
	 * @see #NO_NEW_PERSPECTIVE
	 */
	public static final String OPEN_NEW_PERSPECTIVE = "OPEN_NEW_PERSPECTIVE"; //$NON-NLS-1$

	/**
	 * A named preference for how a new perspective is opened when the alternate
	 * key modifiers are pressed. The alternate key modifiers are platform
	 * dependent.
	 * <p>
	 * Value is of type <code>String. The possible values are defined
	 * by <code>OPEN_PERSPECTIVE_WINDOW, OPEN_PERSPECTIVE_PAGE and 
	 * OPEN_PERSPECTIVE_REPLACE</code>.
	 * </p>
	 * 
	 * @deprecated Workbench no longer supports alternate key modifier to open a
	 *             new perspective. Callers should use
	 *             IWorkbench.showPerspective methods.
	 */
	public static final String ALTERNATE_OPEN_NEW_PERSPECTIVE = "ALTERNATE_OPEN_NEW_PERSPECTIVE"; //$NON-NLS-1$

	/**
	 * A named preference for how a new perspective is opened when the shift key
	 * modifier is pressed.
	 * <p>
	 * Value is of type <code>String. The possible values are defined
	 * by <code>OPEN_PERSPECTIVE_WINDOW, OPEN_PERSPECTIVE_PAGE and 
	 * OPEN_PERSPECTIVE_REPLACE</code>.
	 * </p>
	 * 
	 * @deprecated Workbench no longer supports shift key modifier to open a new
	 *             perspective. Callers should use IWorkbench.showPerspective
	 *             methods.
	 */
	public static final String SHIFT_OPEN_NEW_PERSPECTIVE = "SHIFT_OPEN_NEW_PERSPECTIVE"; //$NON-NLS-1$

	/**
	 * A named preference for how a new perspective should be opened when a new
	 * project is created.
	 * <p>
	 * Value is of type <code>String. The possible values are defined
	 * by the constants <code>OPEN_PERSPECTIVE_WINDOW, OPEN_PERSPECTIVE_PAGE, 
	 * OPEN_PERSPECTIVE_REPLACE, and NO_NEW_PERSPECTIVE</code>.
	 * </p>
	 * 
	 * @see #OPEN_PERSPECTIVE_WINDOW
	 * @see #OPEN_PERSPECTIVE_PAGE
	 * @see #OPEN_PERSPECTIVE_REPLACE
	 * @see #NO_NEW_PERSPECTIVE
	 * @deprecated in 3.0. This preference is IDE-specific, and is therefore
	 *             found only in IDE configurations. IDE-specific tools should
	 *             use
	 *             <code>org.eclipse.ui.ide.IDE.Preferences.PROJECT_OPEN_NEW_PERSPECTIVE
	 *             instead.
	 */
	public static final String PROJECT_OPEN_NEW_PERSPECTIVE = "PROJECT_OPEN_NEW_PERSPECTIVE"; //$NON-NLS-1$

	/**
	 * A preference value indicating that an action should open a new
	 * perspective in a new window.
	 * 
	 * @see #PROJECT_OPEN_NEW_PERSPECTIVE
	 */
	public static final String OPEN_PERSPECTIVE_WINDOW = "OPEN_PERSPECTIVE_WINDOW"; //$NON-NLS-1$

	/**
	 * A preference value indicating that an action should open a new
	 * perspective in a new page.
	 * 
	 * @see #PROJECT_OPEN_NEW_PERSPECTIVE
	 * @deprecated Opening a Perspective in a new page is no longer supported
	 *             functionality as of 2.0.
	 */
	public static final String OPEN_PERSPECTIVE_PAGE = "OPEN_PERSPECTIVE_PAGE"; //$NON-NLS-1$

	/**
	 * A preference value indicating that an action should open a new
	 * perspective by replacing the current perspective.
	 * 
	 * @see #PROJECT_OPEN_NEW_PERSPECTIVE
	 */
	public static final String OPEN_PERSPECTIVE_REPLACE = "OPEN_PERSPECTIVE_REPLACE"; //$NON-NLS-1$

	/**
	 * A preference value indicating that an action should not open a new
	 * perspective.
	 * 
	 * @see #PROJECT_OPEN_NEW_PERSPECTIVE
	 */
	public static final String NO_NEW_PERSPECTIVE = "NO_NEW_PERSPECTIVE"; //$NON-NLS-1$

	/**
	 * A named preference indicating the default workbench perspective.
	 */
	public static final String DEFAULT_PERSPECTIVE_ID = "defaultPerspectiveId"; //$NON-NLS-1$

	/**
	 * A named preference indicating the presentation factory to use for the
	 * workbench look and feel.
	 * 
	 * @since 3.0
	 */
	public static final String PRESENTATION_FACTORY_ID = "presentationFactoryId"; //$NON-NLS-1$

	/**
	 * A named preference indicating where the perspective bar should be docked.
	 * The default value (when this preference is not set) is
	 * <code>TOP_RIGHT.
	 * <p>
	 * This preference may be one of the following values: {@link #TOP_RIGHT},
	 * {@link #TOP_LEFT}, or {@link #LEFT}.
	 * </p>
	 * 
	 * @since 3.0
	 */
	public static String DOCK_PERSPECTIVE_BAR = "DOCK_PERSPECTIVE_BAR"; //$NON-NLS-1$	

	/**
	 * A named preference indicating where the fast view bar should be docked in
	 * a fresh workspace. This preference is meaningless after a workspace has
	 * been setup, since the fast view bar state is then persisted in the
	 * workbench. This preference is intended for applications that want the
	 * initial docking location to be somewhere specific. The default value
	 * (when this preference is not set) is the bottom.
	 * 
	 * @see #LEFT
	 * @see #BOTTOM
	 * @see #RIGHT
	 * @since 3.0
	 */
	public static final String INITIAL_FAST_VIEW_BAR_LOCATION = "initialFastViewBarLocation"; //$NON-NLS-1$

	/**
	 * Constant to be used when referring to the top right of the workbench
	 * window.
	 * 
	 * @see #DOCK_PERSPECTIVE_BAR
	 * @since 3.0
	 */
	public static final String TOP_RIGHT = "topRight"; //$NON-NLS-1$

	/**
	 * Constant to be used when referring to the top left of the workbench
	 * window.
	 * 
	 * @see #DOCK_PERSPECTIVE_BAR
	 * @since 3.0
	 */
	public static final String TOP_LEFT = "topLeft"; //$NON-NLS-1$

	/**
	 * Constant to be used when referring to the left side of the workbench
	 * window.
	 * 
	 * @see #DOCK_PERSPECTIVE_BAR
	 * @see #INITIAL_FAST_VIEW_BAR_LOCATION
	 * @since 3.0
	 */
	public static final String LEFT = "left"; //$NON-NLS-1$

	/**
	 * Constant to be used when referring to the bottom of the workbench window.
	 * 
	 * @see #INITIAL_FAST_VIEW_BAR_LOCATION
	 * @since 3.0
	 */
	public static final String BOTTOM = "bottom"; //$NON-NLS-1$

	/**
	 * Constant to be used when referring to the right side of the workbench
	 * window.
	 * 
	 * @see #INITIAL_FAST_VIEW_BAR_LOCATION
	 * @since 3.0
	 */
	public static final String RIGHT = "right"; //$NON-NLS-1$

	/**
	 * A named preference indicating whether the workbench should show the
	 * introduction component (if available) on startup.
	 * 
	 * <p>
	 * The default value for this preference is: <code>true (show
	 * intro)
	 * </p>
	 * 
	 * @see org.eclipse.ui.application.WorkbenchWindowAdvisor#openIntro()
	 * @since 3.0
	 */
	public static final String SHOW_INTRO = "showIntro"; //$NON-NLS-1$

	/**
	 * A named preference for whether the workbench should show traditional
	 * style tabs in editors and views.
	 * 
	 * Boolean-valued: <code>true if editors and views should use a
	 * traditional style of tab and <code>false if editors should show
	 * new style tab (3.0 style)
	 * <p>
	 * The default value for this preference is: <code>true
	 * </p>
	 * 
	 * @since 3.0
	 */
	public static String SHOW_TRADITIONAL_STYLE_TABS = "SHOW_TRADITIONAL_STYLE_TABS"; //$NON-NLS-1$

	/**
	 * A named preference for whether the workbench should show text on the
	 * perspective bar.
	 * 
	 * Boolean-valued: <code>true, if editors should show text on the
	 * perspective bar, <code>false otherwise.
	 * <p>
	 * The default value for this preference is: <code>true (show text
	 * on the perspective bar)
	 * </p>
	 * 
	 * @since 3.0
	 */
	public static String SHOW_TEXT_ON_PERSPECTIVE_BAR = "SHOW_TEXT_ON_PERSPECTIVE_BAR"; //$NON-NLS-1$

	/**
	 * A named preference for whether the workbench should show the "open
	 * perspective" button on the perspective bar.
	 * 
	 * Boolean-valued: <code>true, if editors should show "open
	 * perspective" button on the perspective bar, <code>false
	 * otherwise.
	 * <p>
	 * The default value for this preference is: <code>true (show "open
	 * perspective" button on the perspective bar)
	 * </p>
	 * 
	 * @since 3.4
	 */
	public static String SHOW_OPEN_ON_PERSPECTIVE_BAR = "SHOW_OPEN_ON_PERSPECTIVE_BAR"; //$NON-NLS-1$

	/**
	 * A named preference for whether the workbench should show the "Other..."
	 * menu item in the perspective menu.
	 * 
	 * Boolean-valued: <code>true, if editors should show text on the
	 * "Other..." menu item, <code>false otherwise.
	 * <p>
	 * The default value for this preference is: <code>true (show the
	 * "Other..." menu item in the perspective menu)
	 * </p>
	 * 
	 * @since 3.4
	 */
	public static String SHOW_OTHER_IN_PERSPECTIVE_MENU = "SHOW_OTHER_IN_PERSPECTIVE_MENU"; //$NON-NLS-1$

	/**
	 * A named preference for the text of the Help Contents action.
	 * 
	 * String-valued. If not specified, <code>"&Help Contents" is used.
	 * <p>
	 * The default value for this preference is: <code>null
	 * </p>
	 * 
	 * @since 3.0
	 */
	public static String HELP_CONTENTS_ACTION_TEXT = "helpContentsActionText"; //$NON-NLS-1$

	/**
	 * A named preference for the text of the Help Search action.
	 * 
	 * String-valued. If not specified, <code>"S&earch" is used.
	 * <p>
	 * The default value for this preference is: <code>null
	 * </p>
	 * 
	 * @since 3.1
	 */
	public static String HELP_SEARCH_ACTION_TEXT = "helpSearchActionText"; //$NON-NLS-1$

	/**
	 * A named preference for the text of the Dynamic Help action.
	 * 
	 * String-valued. If not specified, <code>"&Dynamic Help" is used.
	 * <p>
	 * The default value for this preference is: <code>null
	 * </p>
	 * 
	 * @since 3.1
	 */
	public static String DYNAMIC_HELP_ACTION_TEXT = "dynamicHelpActionText"; //$NON-NLS-1$

	/**
	 * A named preference for enabling animations when a layout transition
	 * occurs
	 * <p>
	 * The default value for this preference is: <code>true (show
	 * animations when a transition occurs)
	 * </p>
	 * 
	 * @since 3.1
	 */
	public static final String ENABLE_ANIMATIONS = "ENABLE_ANIMATIONS"; //$NON-NLS-1$
	
	/**
	 * A named preference that view implementors can used to determine whether
	 * or not they should utilize colored labels.
	 * 
	 * <p>
	 * The default value for this preference is: <code>true (show
	 * colored labels)
	 * </p>
	 * 
	 * @since 3.4
	 */
	public static final String USE_COLORED_LABELS = "USE_COLORED_LABELS"; //$NON-NLS-1$

	/**
	 * <p>
	 * Workbench preference id for the key configuration identifier to be
	 * treated as the default.
	 * </p>
	 * <p>
	 * The default value for this preference is
	 * <code>"org.eclipse.ui.defaultAcceleratorConfiguration".
	 * <p>
	 * 
	 * @since 3.1
	 */
	public static final String KEY_CONFIGURATION_ID = "KEY_CONFIGURATION_ID"; //$NON-NLS-1$

	/**
	 * <p>
	 * Workbench preference identifier for the minimum width of editor tabs. By
	 * default, Eclipse does not define this value and allows SWT to determine
	 * this constant. We use <code>-1 internally to signify "use
	 * default".
	 * </p>
	 * <p>
	 * The default value for this preference is <code>-1.
	 * </p>
	 * 
	 * @since 3.1
	 */
	public static final String EDITOR_MINIMUM_CHARACTERS = "EDITOR_MINIMUM_CHARACTERS"; //$NON-NLS-1$

	/**
	 * <p>
	 * Workbench preference identifier for the minimum width of view tabs.
	 * </p>
	 * <p>
	 * The default value for this preference is <code>1.
	 * </p>
	 * 
	 * @since 3.2
	 */
	public static final String VIEW_MINIMUM_CHARACTERS = "VIEW_MINIMUM_CHARACTERS"; //$NON-NLS-1$

	/**
	 * Stores whether or not system jobs are being shown.
	 * 
	 * @since 3.1
	 */
	public static final String SHOW_SYSTEM_JOBS = "SHOW_SYSTEM_JOBS";//$NON-NLS-1$

	/**
	 * Workbench preference for the current theme.
	 * 
	 * @since 3.1
	 */
	public static String CURRENT_THEME_ID = "CURRENT_THEME_ID"; //$NON-NLS-1$

	/**
	 * A preference value indicating whether editors should be closed before
	 * saving the workbench state when exiting. The default is
	 * <code>false.
	 * 
	 * @since 3.1
	 */
	public static final String CLOSE_EDITORS_ON_EXIT = "CLOSE_EDITORS_ON_EXIT"; //$NON-NLS-1$

	/**
	 * Stores whether or not to show progress while starting the workbench. The
	 * default is <code>false.
	 * 
	 * @since 3.1
	 */
	public static final String SHOW_PROGRESS_ON_STARTUP = "SHOW_PROGRESS_ON_STARTUP"; //$NON-NLS-1$

	/**
	 * Stores whether or not to show the memory monitor in the workbench window.
	 * 
	 * @since 3.1
	 */
	public static final String SHOW_MEMORY_MONITOR = "SHOW_MEMORY_MONITOR"; //$NON-NLS-1$

	/**
	 * Stores whether or not to use the window working set as the default
	 * working set for newly created views (without previously stored state).
	 * This is a hint that view implementors should honor.
	 * 
	 * @since 3.2
	 */
	public static final String USE_WINDOW_WORKING_SET_BY_DEFAULT = "USE_WINDOW_WORKING_SET_BY_DEFAULT"; //$NON-NLS-1$

	/**
	 * Stores whether or not to show the text widget that allows type-ahead
	 * search in the case where a FilteredTree is used to display and filter
	 * tree items.
	 * 
	 * @since 3.2
	 */
	public static final String SHOW_FILTERED_TEXTS = "SHOW_FILTERED_TEXTS"; //$NON-NLS-1$

	/**
	 * Stores whether or not views may be detached. The default is
	 * <code>true.
	 * 
	 * @since 3.2
	 */
	public static final String ENABLE_DETACHED_VIEWS = "ENABLE_DETACHED_VIEWS"; //$NON-NLS-1$

	/**
	 * Stores whether or not the workbench prompts for saving when a dirty
	 * editor or view is closed, but the Saveable objects are still open in
	 * other parts. If
	 * <code>true (default), the user will be prompted. If false, there will be
	 * no prompt.
	 * 
	 * @see Saveable
	 * @since 3.2
	 */
	public static final String PROMPT_WHEN_SAVEABLE_STILL_OPEN = "PROMPT_WHEN_SAVEABLE_STILL_OPEN"; //$NON-NLS-1$

	/**
	 * Lists the extra perspectives to show in the perspective bar. The value is
	 * a comma-separated list of perspective ids. The default is the empty
	 * string.
	 * 
	 * @since 3.2
	 */
	public static final String PERSPECTIVE_BAR_EXTRAS = "PERSPECTIVE_BAR_EXTRAS"; //$NON-NLS-1$

	/**
	 * Allows locking the trim to prevent user dragging on startup. The default
	 * is <code>false.
	 * 
	 * @since 3.2
	 */
	public static final String LOCK_TRIM = "LOCK_TRIM"; //$NON-NLS-1$

	/**
	 * A named preference for providing the 3.3 presentation's min/max behaviour
	 * <p>
	 * The default value for this preference is: <code>false; use the
	 * 3.2 behaviour.
	 * </p>
	 * 
	 * @since 3.3
	 */
	public static final String ENABLE_NEW_MIN_MAX = "ENABLE_MIN_MAX"; //$NON-NLS-1$

	/**
	 * A named preference for disabling opening a new fast view from the fast
	 * view bar controls ("Show View as a fast view" button or "New Fast View"
	 * submenu).
	 * <p>
	 * Value is of type <code>boolean.
	 * </p>
	 * <p>
	 * The default is <code>false.
	 * </p>
	 * 
	 * @since 3.3
	 */
	public static final String DISABLE_NEW_FAST_VIEW = "disableNewFastView"; //$NON-NLS-1$

	/**
	 * A named preference for enabling the 3.2 behavior for closing sticky
	 * views. When not enabled a sticky view is closed in all perspectives when
	 * the view is closed.
	 * <p>
	 * The default value for this preference is: <code>false; use the
	 * 3.2 behaviour.
	 * </p>
	 * 
	 * @since 3.3
	 */
	public static final String ENABLE_32_STICKY_CLOSE_BEHAVIOR = "ENABLE_32_STICKY_CLOSE_BEHAVIOR"; //$NON-NLS-1$

	/**
	 * An named preference for whether or not tabs are on the top or bottom
	 * for views. Values are either {@link SWT#TOP} or {@link SWT#BOTTOM}
	 * 
	 * @since 3.4
	 */
	public static final String VIEW_TAB_POSITION = "VIEW_TAB_POSITION"; //$NON-NLS-1$

	/**
	 * An named preference for whether or not tabs are on the top or bottom
	 * for editors. Values are either {@link SWT#TOP} or {@link SWT#BOTTOM}
	 * 
	 * @since 3.4
	 */
	public static final String EDITOR_TAB_POSITION = "EDITOR_TAB_POSITION"; //$NON-NLS-1$

	/**
	 * Workbench preference id for whether the workbench should show multiple
	 * editor tabs.
	 * 
	 * Boolean-valued: <code>true if editors should show multiple
	 * editor tabs, and <code>false if editors should show a single
	 * editor tab.
	 * <p>
	 * The default value for this preference is: <code>true
	 * </p>
	 * 
	 * @since 3.4
	 */
	public static final String SHOW_MULTIPLE_EDITOR_TABS = "SHOW_MULTIPLE_EDITOR_TABS"; //$NON-NLS-1$	
	
	/**
	 * Workbench preference id for whether the workbench may open editors
	 * in-place. Note that editors will only be opened in-place if this
	 * preference is <code>false and if the current platform supports
	 * in-place editing.
	 * 
	 * Boolean-valued: <code>false if editors may be opened in-place,
	 * and <code>true if editors should never be opened in-place.
	 * <p>
	 * The default value for this preference is: <code>false
	 * </p>
	 * 
	 * @since 3.4
	 */
	public static final String DISABLE_OPEN_EDITOR_IN_PLACE = "DISABLE_OPEN_EDITOR_IN_PLACE"; //$NON-NLS-1$	
}