org.eclipse.jface.dialogs.PopupDialog Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2005, 2016 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
* Stefan Xenos, IBM - bug 156790: Adopt GridLayoutFactory within JFace
*******************************************************************************/
package org.eclipse.jface.dialogs;
import static org.eclipse.swt.events.SelectionListener.widgetSelectedAdapter;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.runtime.Assert;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.GroupMarker;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.jface.preference.JFacePreferences;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.util.Util;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.MouseAdapter;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.ToolBar;
import org.eclipse.swt.widgets.ToolItem;
import org.eclipse.swt.widgets.Tracker;
/**
* A lightweight, transient dialog that is popped up to show contextual or
* temporal information and is easily dismissed. Clients control whether the
* dialog should be able to receive input focus. An optional title area at the
* top and an optional info area at the bottom can be used to provide additional
* information.
*
* Because the dialog is short-lived, most of the configuration of the dialog is
* done in the constructor. Set methods are only provided for those values that
* are expected to be dynamically computed based on a particular instance's
* internal state.
*
* Clients are expected to override the creation of the main dialog area, and
* may optionally override the creation of the title area and info area in order
* to add content. In general, however, the creation of stylistic features, such
* as the dialog menu, separator styles, and fonts, is kept private so that all
* popup dialogs will have a similar appearance.
*
* @since 3.2
*/
public class PopupDialog extends Window {
private static GridDataFactory grabBothGridDataFactory;
private static GridDataFactory getGrabBothGridData() {
if (grabBothGridDataFactory == null) {
grabBothGridDataFactory = GridDataFactory.fillDefaults().grab(true, true);
}
return grabBothGridDataFactory;
}
/**
* The dialog settings key name for stored dialog x location.
*/
private static final String DIALOG_ORIGIN_X = "DIALOG_X_ORIGIN"; //$NON-NLS-1$
/**
* The dialog settings key name for stored dialog y location.
*/
private static final String DIALOG_ORIGIN_Y = "DIALOG_Y_ORIGIN"; //$NON-NLS-1$
/**
* The dialog settings key name for stored dialog width.
*/
private static final String DIALOG_WIDTH = "DIALOG_WIDTH"; //$NON-NLS-1$
/**
* The dialog settings key name for stored dialog height.
*/
private static final String DIALOG_HEIGHT = "DIALOG_HEIGHT"; //$NON-NLS-1$
/**
* The dialog settings key name for remembering if the persisted size should
* be accessed.
*/
private static final String DIALOG_USE_PERSISTED_SIZE = "DIALOG_USE_PERSISTED_SIZE"; //$NON-NLS-1$
/**
* The dialog settings key name for remembering if the persisted location
* should be accessed.
*/
private static final String DIALOG_USE_PERSISTED_LOCATION = "DIALOG_USE_PERSISTED_LOCATION"; //$NON-NLS-1$
/**
* Move action for the dialog.
*/
private class MoveAction extends Action {
MoveAction() {
super(JFaceResources.getString("PopupDialog.move"), //$NON-NLS-1$
IAction.AS_PUSH_BUTTON);
}
@Override
public void run() {
performTrackerAction(SWT.NONE);
}
}
/**
* Resize action for the dialog.
*/
private class ResizeAction extends Action {
ResizeAction() {
super(JFaceResources.getString("PopupDialog.resize"), IAction.AS_PUSH_BUTTON); //$NON-NLS-1$
}
@Override
public void run() {
performTrackerAction(SWT.RESIZE);
}
}
/**
*
* Remember bounds action for the dialog.
*/
private class PersistBoundsAction extends Action {
PersistBoundsAction() {
super(JFaceResources.getString("PopupDialog.persistBounds"), IAction.AS_CHECK_BOX); //$NON-NLS-1$
setChecked(persistLocation && persistSize);
}
@Override
public void run() {
persistSize = isChecked();
persistLocation = persistSize;
}
}
/**
*
* Remember bounds action for the dialog.
*/
private class PersistSizeAction extends Action {
PersistSizeAction() {
super(JFaceResources.getString("PopupDialog.persistSize"), IAction.AS_CHECK_BOX); //$NON-NLS-1$
setChecked(persistSize);
}
@Override
public void run() {
persistSize = isChecked();
}
}
private class PinAction extends Action {
PinAction() {
super(JFaceResources.getString("PopupDialog.pinDialog"), IAction.AS_CHECK_BOX); //$NON-NLS-1$
setChecked(pinDialog);
}
@Override
public void run() {
pinDialog = isChecked();
}
}
private class CloseAction extends Action {
CloseAction() {
super(JFaceResources.getString("PopupDialog.close"), IAction.AS_PUSH_BUTTON); //$NON-NLS-1$
}
@Override
public void run() {
close();
}
}
/**
*
* Remember location action for the dialog.
*/
private class PersistLocationAction extends Action {
PersistLocationAction() {
super(JFaceResources.getString("PopupDialog.persistLocation"), IAction.AS_CHECK_BOX); //$NON-NLS-1$
setChecked(persistLocation);
}
@Override
public void run() {
persistLocation = isChecked();
}
}
/**
* Shell style appropriate for a simple hover popup that cannot get focus.
*/
public static final int HOVER_SHELLSTYLE = SWT.NO_FOCUS | SWT.ON_TOP | SWT.TOOL;
/**
* Shell style appropriate for an info popup that can get focus.
*/
public static final int INFOPOPUP_SHELLSTYLE = SWT.TOOL;
/**
* Shell style appropriate for a resizable info popup that can get focus.
*/
public static final int INFOPOPUPRESIZE_SHELLSTYLE = SWT.RESIZE;
/**
* Margin width (in pixels) to be used in layouts inside popup dialogs
* (value is 0).
*/
public static final int POPUP_MARGINWIDTH = 0;
/**
* Margin height (in pixels) to be used in layouts inside popup dialogs
* (value is 0).
*/
public static final int POPUP_MARGINHEIGHT = 0;
/**
* Vertical spacing (in pixels) between cells in the layouts inside popup
* dialogs (value is 1).
*/
public static final int POPUP_VERTICALSPACING = 1;
/**
* Vertical spacing (in pixels) between cells in the layouts inside popup
* dialogs (value is 1).
*/
public static final int POPUP_HORIZONTALSPACING = 1;
/**
* Image registry key for menu image.
*
* @since 3.4
*/
public static final String POPUP_IMG_MENU = "popup_menu_image"; //$NON-NLS-1$
/**
* Image registry key for disabled menu image.
*
* @since 3.4
*/
public static final String POPUP_IMG_MENU_DISABLED = "popup_menu_image_diabled"; //$NON-NLS-1$
private static GridLayoutFactory popupLayoutFactory;
private static GridLayoutFactory getPopupLayout() {
if (popupLayoutFactory == null) {
popupLayoutFactory = GridLayoutFactory.fillDefaults()
.margins(POPUP_MARGINWIDTH, POPUP_MARGINHEIGHT)
.spacing(POPUP_HORIZONTALSPACING, POPUP_VERTICALSPACING);
}
return popupLayoutFactory;
}
/**
* The dialog's toolbar for the move and resize capabilities.
*/
private ToolBar toolBar = null;
/**
* The dialog's menu manager.
*/
private MenuManager menuManager = null;
/**
* The control representing the main dialog area.
*/
private Control dialogArea;
/**
* Labels that contain title and info text. Cached so they can be updated
* dynamically if possible.
*/
private Label titleLabel, infoLabel;
/**
* Separator controls. Cached so they can be excluded from color changes.
*/
private Control titleSeparator, infoSeparator;
/**
* Font to be used for the info area text. Computed based on the dialog's
* font.
*/
private Font infoFont;
/**
* Font to be used for the title area text. Computed based on the dialog's
* font.
*/
private Font titleFont;
/**
* Flags indicating whether we are listening for shell deactivate events,
* either those or our parent's. Used to prevent closure when a menu command
* is chosen or a secondary popup is launched.
*/
private boolean listenToDeactivate;
private boolean listenToParentDeactivate;
private Listener parentDeactivateListener;
/**
* Flag indicating whether focus should be taken when the dialog is opened.
*/
private boolean takeFocusOnOpen = false;
/**
* Flag specifying whether a menu should be shown that allows the user to
* move and resize.
*/
private boolean showDialogMenu = false;
/**
* Flag specifying whether menu actions allowing the user to choose whether
* the dialog bounds and location should be persisted are to be shown.
*/
private boolean showPersistActions = false;
/**
* Flag specifying whether the size of the popup should be persisted. This
* flag is used as initial default and updated by the menu if it is shown.
*/
private boolean persistSize = false;
/**
* Flag specifying whether the location of the popup should be persisted.
* This flag is used as initial default and updated by the menu if it is
* shown.
*/
private boolean persistLocation = false;
private boolean pinDialog = false;
/**
* Flag specifying whether to use new 3.4 API instead of the old one.
*
* @since 3.4
*/
private boolean isUsing34API = true;
/**
* Text to be shown in an optional title area (on top).
*/
private String titleText;
/**
* Text to be shown in an optional info area (at the bottom).
*/
private String infoText;
private boolean showPinAction;
/**
* Constructs a new instance of PopupDialog.
*
* @param parent
* The parent shell.
* @param shellStyle
* The shell style.
* @param takeFocusOnOpen
* A boolean indicating whether focus should be taken by this
* popup when it opens.
* @param persistSize
* A boolean indicating whether the size should be persisted upon
* close of the dialog. The size can only be persisted if the
* dialog settings for persisting the bounds are also specified.
* If a menu action will be provided that allows the user to
* control this feature and the user hasn't changed that setting,
* then this flag is used as initial default for the menu.
* @param persistLocation
* A boolean indicating whether the location should be persisted
* upon close of the dialog. The location can only be persisted
* if the dialog settings for persisting the bounds are also
* specified. If a menu action will be provided that allows the
* user to control this feature and the user hasn't changed that
* setting, then this flag is used as initial default for the
* menu. default for the menu until the user changed it.
* @param showDialogMenu
* A boolean indicating whether a menu for moving and resizing
* the popup should be provided.
* @param showPersistActions
* A boolean indicating whether actions allowing the user to
* control the persisting of the dialog bounds and location
* should be shown in the dialog menu. This parameter has no
* effect if showDialogMenu is false.
* @param titleText
* Text to be shown in an upper title area, or null
* if there is no title.
* @param infoText
* Text to be shown in a lower info area, or null
* if there is no info area.
*
* @see PopupDialog#getDialogSettings()
*
* @since 3.4
*/
public PopupDialog(Shell parent, int shellStyle, boolean takeFocusOnOpen,
boolean persistSize, boolean persistLocation,
boolean showDialogMenu, boolean showPersistActions,
String titleText, String infoText) {
this(parent, shellStyle, takeFocusOnOpen, persistSize, persistLocation,
showDialogMenu, showPersistActions, false, titleText, infoText, true);
}
/**
* Constructs a new instance of PopupDialog.
*
* @param parent The parent shell.
* @param shellStyle The shell style.
* @param takeFocusOnOpen A boolean indicating whether focus should be taken
* by this popup when it opens.
* @param persistSize A boolean indicating whether the size should be
* persisted upon close of the dialog. The size can
* only be persisted if the dialog settings for
* persisting the bounds are also specified. If a menu
* action will be provided that allows the user to
* control this feature and the user hasn't changed
* that setting, then this flag is used as initial
* default for the menu.
* @param persistLocation A boolean indicating whether the location should be
* persisted upon close of the dialog. The location
* can only be persisted if the dialog settings for
* persisting the bounds are also specified. If a menu
* action will be provided that allows the user to
* control this feature and the user hasn't changed
* that setting, then this flag is used as initial
* default for the menu. default for the menu until
* the user changed it.
* @param showDialogMenu A boolean indicating whether a menu for moving and
* resizing the popup should be provided.
* @param showPersistActions A boolean indicating whether actions allowing the
* user to control the persisting of the dialog bounds
* and location should be shown in the dialog menu.
* This parameter has no effect if
* showDialogMenu is false.
* @param showPinAction A boolean indicating whether actions allowing the
* user to pin the dialog so it remains visible and
* accessible when deactivated should be shown in the
* dialog menu. This parameter has no effect if
* showDialogMenu is false.
* @param titleText Text to be shown in an upper title area, or
* null if there is no title.
* @param infoText Text to be shown in a lower info area, or
* null if there is no info area.
*
* @see PopupDialog#getDialogSettings()
*
* @since 3.35
*/
public PopupDialog(Shell parent, int shellStyle, boolean takeFocusOnOpen,
boolean persistSize, boolean persistLocation,
boolean showDialogMenu, boolean showPersistActions, boolean showPinAction,
String titleText, String infoText) {
this(parent, shellStyle, takeFocusOnOpen, persistSize, persistLocation,
showDialogMenu, showPersistActions, showPinAction, titleText, infoText, true);
}
/**
* Constructs a new instance of PopupDialog.
*
* @param parent The parent shell.
* @param shellStyle The shell style.
* @param takeFocusOnOpen A boolean indicating whether focus should be taken
* by this popup when it opens.
* @param persistSize A boolean indicating whether the size should be
* persisted upon close of the dialog. The size can
* only be persisted if the dialog settings for
* persisting the bounds are also specified. If a menu
* action will be provided that allows the user to
* control this feature and the user hasn't changed
* that setting, then this flag is used as initial
* default for the menu.
* @param persistLocation A boolean indicating whether the location should be
* persisted upon close of the dialog. The location
* can only be persisted if the dialog settings for
* persisting the bounds are also specified. If a menu
* action will be provided that allows the user to
* control this feature and the user hasn't changed
* that setting, then this flag is used as initial
* default for the menu. default for the menu until
* the user changed it.
* @param showDialogMenu A boolean indicating whether a menu for moving and
* resizing the popup should be provided.
* @param showPersistActions A boolean indicating whether actions allowing the
* user to control the persisting of the dialog bounds
* and location should be shown in the dialog menu.
* This parameter has no effect if
* showDialogMenu is false.
* @param showPinAction A boolean indicating whether actions allowing the
* user to pin the dialog so it remains visible and
* accessible when deactivated should be shown in the
* dialog menu. This parameter has no effect if
* showDialogMenu is false.
* @param titleText Text to be shown in an upper title area, or
* null if there is no title.
* @param infoText Text to be shown in a lower info area, or
* null if there is no info area.
* @param use34API true if 3.4 API should be used
*
* @see PopupDialog#getDialogSettings()
*
* @since 3.4
*/
private PopupDialog(Shell parent, int shellStyle, boolean takeFocusOnOpen,
boolean persistSize, boolean persistLocation,
boolean showDialogMenu, boolean showPersistActions,
boolean showPinAction,
String titleText, String infoText, boolean use34API) {
super(parent);
// Prior to 3.4, we encouraged use of SWT.NO_TRIM and provided a
// border using a black composite background and margin. Now we
// use SWT.TOOL to get the border for some cases and this conflicts
// with SWT.NO_TRIM. Clients who previously have used SWT.NO_TRIM
// and still had a border drawn for them would find their border go
// away unless we do the following:
// see https://bugs.eclipse.org/bugs/show_bug.cgi?id=219743
if ((shellStyle & SWT.NO_TRIM) != 0) {
shellStyle &= ~(SWT.NO_TRIM | SWT.SHELL_TRIM);
}
setShellStyle(shellStyle);
this.takeFocusOnOpen = takeFocusOnOpen;
this.showDialogMenu = showDialogMenu;
this.showPersistActions = showPersistActions;
this.showPinAction = showPinAction;
this.titleText = titleText;
this.infoText = infoText;
setBlockOnOpen(false);
this.isUsing34API = use34API;
this.persistSize = persistSize;
this.persistLocation = persistLocation;
initializeWidgetState();
}
@Override
protected void configureShell(Shell shell) {
GridLayoutFactory.fillDefaults().margins(0, 0).spacing(5, 5).applyTo(
shell);
shell.addListener(SWT.Deactivate, event -> {
/*
* Close if we are deactivating and have no child shells. If we
* have child shells, we are deactivating due to their opening.
*
* Feature in GTK: this causes the Quick Outline/Type Hierarchy
* Shell to close on re-size/movement on Gtk3. For this reason,
* the asyncClose() call is disabled in GTK. See Eclipse Bugs
* 466500 and 113577 for more information.
*/
if (!pinDialog && listenToDeactivate && event.widget == getShell()
&& getShell().getShells().length == 0) {
if (!Util.isGtk()) {
asyncClose();
}
} else {
/*
* We typically ignore deactivates to work around
* platform-specific event ordering. Now that we've ignored
* whatever we were supposed to, start listening to
* deactivates. Example issues can be found in
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=123392
*/
listenToDeactivate = true;
}
});
// Set this true whenever we activate. It may have been turned
// off by a menu or secondary popup showing.
shell.addListener(SWT.Activate, event -> {
// ignore this event if we have launched a child
if (event.widget == getShell() && getShell().getShells().length == 0) {
listenToDeactivate = true;
// Typically we start listening for parent deactivate after
// we are activated, except on the Mac, where the deactivate
// is received after activate.
// See https://bugs.eclipse.org/bugs/show_bug.cgi?id=100668
listenToParentDeactivate = !Util.isMac();
}
});
final Composite parent = shell.getParent();
if (parent != null) {
if ((getShellStyle() & SWT.ON_TOP) != 0) {
parentDeactivateListener = event -> {
if (!pinDialog && listenToParentDeactivate) {
asyncClose();
} else {
// Our first deactivate, now start listening on the Mac.
listenToParentDeactivate = listenToDeactivate;
}
};
parent.addListener(SWT.Deactivate, parentDeactivateListener);
} else if (Util.isGtk()) {
/*
* Fix for bug 485745 on GTK: popup does not close on parent
* shell activation.
*/
parent.addListener(SWT.Activate, new Listener() {
@Override
public void handleEvent(Event event) {
/*
* NB: we must wait with closing until
* listenToDeactivate is set to true, otherwise it may
* happen that the popup closes immediately after
* showing up (seem to be timing issue with shell
* creation).
*
* E.g. "Display" popup does not need this, but
* "Show all Instances" and "Show all References" do.
* They all are InspectPopupDialog instances...
*/
if (pinDialog || event.widget != parent || !listenToDeactivate || parent.isDisposed()) {
return;
}
parent.removeListener(SWT.Activate, this);
asyncClose();
}
});
}
}
shell.addDisposeListener(event -> handleDispose());
}
private void asyncClose() {
// workaround for https://bugs.eclipse.org/bugs/show_bug.cgi?id=152010
Shell shell = getShell();
if (shell != null && !shell.isDisposed()) {
shell.getDisplay().asyncExec(this::close);
}
}
/**
* The PopupDialog implementation of this Window
* method creates and lays out the top level composite for the dialog. It
* then calls the createTitleMenuArea,
* createDialogArea, and createInfoTextArea
* methods to create an optional title and menu area on the top, a dialog
* area in the center, and an optional info text area at the bottom.
* Overriding createDialogArea and (optionally)
* createTitleMenuArea and createTitleMenuArea
* are recommended rather than overriding this method.
*
* @param parent
* the composite used to parent the contents.
*
* @return the control representing the contents.
*/
@Override
protected Control createContents(Composite parent) {
Composite composite = new Composite(parent, SWT.NONE);
getPopupLayout().applyTo(composite);
getGrabBothGridData().applyTo(composite);
// Title area
if (hasTitleArea()) {
createTitleMenuArea(composite);
titleSeparator = createHorizontalSeparator(composite);
}
// Content
dialogArea = createDialogArea(composite);
// Create a grid data layout data if one was not provided.
// See https://bugs.eclipse.org/bugs/show_bug.cgi?id=118025
if (dialogArea.getLayoutData() == null) {
getGrabBothGridData().applyTo(dialogArea);
}
// Info field
if (hasInfoArea()) {
infoSeparator = createHorizontalSeparator(composite);
createInfoTextArea(composite);
}
applyColors(composite);
applyFonts(composite);
return composite;
}
/**
* Creates and returns the contents of the dialog (the area below the title
* area and above the info text area.
*
* The PopupDialog implementation of this framework method
* creates and returns a new Composite with standard margins
* and spacing.
*
* The returned control's layout data must be an instance of
* GridData. This method must not modify the parent's
* layout.
*
* Subclasses must override this method but may call super as
* in the following example:
*
*
* Composite composite = (Composite) super.createDialogArea(parent);
* //add controls to composite as necessary
* return composite;
*
*
* @param parent
* the parent composite to contain the dialog area
* @return the dialog area control
*/
protected Control createDialogArea(Composite parent) {
Composite composite = new Composite(parent, SWT.NONE);
getPopupLayout().applyTo(composite);
getGrabBothGridData().applyTo(composite);
return composite;
}
/**
* Returns the control that should get initial focus. Subclasses may
* override this method.
*
* @return the Control that should receive focus when the popup opens.
*/
protected Control getFocusControl() {
return dialogArea;
}
/**
* Sets the tab order for the popup. Clients should override to introduce
* specific tab ordering.
*
* @param composite
* the composite in which all content, including the title area
* and info area, was created. This composite's parent is the
* shell.
*/
protected void setTabOrder(Composite composite) {
// default is to do nothing
}
/**
* Returns a boolean indicating whether the popup should have a title area
* at the top of the dialog. Subclasses may override. Default behavior is to
* have a title area if there is to be a menu or title text.
*
* @return true if a title area should be created,
* false if it should not.
*/
protected boolean hasTitleArea() {
return titleText != null || showDialogMenu;
}
/**
* Returns a boolean indicating whether the popup should have an info area
* at the bottom of the dialog. Subclasses may override. Default behavior is
* to have an info area if info text was provided at the time of creation.
*
* @return true if a title area should be created,
* false if it should not.
*/
protected boolean hasInfoArea() {
return infoText != null;
}
/**
* Creates the title and menu area. Subclasses typically need not override
* this method, but instead should use the constructor parameters
* showDialogMenu and showPersistAction to
* indicate whether a menu should be shown, and
* createTitleControl to to customize the presentation of the
* title.
*
*
* If this method is overridden, the returned control's layout data must be
* an instance of GridData. This method must not modify the
* parent's layout.
*
* @param parent
* The parent composite.
* @return The Control representing the title and menu area.
*/
protected Control createTitleMenuArea(Composite parent) {
Composite titleAreaComposite = new Composite(parent, SWT.NONE);
getPopupLayout().copy().numColumns(2).applyTo(titleAreaComposite);
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER).grab(true, false).applyTo(titleAreaComposite);
createTitleControl(titleAreaComposite);
if (showDialogMenu) {
createDialogMenu(titleAreaComposite);
}
return titleAreaComposite;
}
/**
* Creates the control to be used to represent the dialog's title text.
* Subclasses may override if a different control is desired for
* representing the title text, or if something different than the title
* should be displayed in location where the title text typically is shown.
*
*
* If this method is overridden, the returned control's layout data must be
* an instance of GridData. This method must not modify the
* parent's layout.
*
* @param parent
* The parent composite.
* @return The Control representing the title area.
*/
protected Control createTitleControl(Composite parent) {
titleLabel = new Label(parent, SWT.NONE);
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER).grab(true,
false).span(showDialogMenu ? 1 : 2, 1).applyTo(titleLabel);
if (titleText != null) {
titleLabel.setText(titleText);
}
return titleLabel;
}
/**
* Creates the optional info text area. This method is only called if the
* hasInfoArea() method returns true. Subclasses typically
* need not override this method, but may do so.
*
*
* If this method is overridden, the returned control's layout data must be
* an instance of GridData. This method must not modify the
* parent's layout.
*
*
* @param parent
* The parent composite.
* @return The control representing the info text area.
*
* @see PopupDialog#hasInfoArea()
* @see PopupDialog#createTitleControl(Composite)
*/
protected Control createInfoTextArea(Composite parent) {
// Status label
infoLabel = new Label(parent, SWT.RIGHT);
infoLabel.setText(infoText);
GridDataFactory.fillDefaults().grab(true, false).align(SWT.FILL,
SWT.BEGINNING).applyTo(infoLabel);
Display display = parent.getDisplay();
Color backgroundColor = getBackground();
if (backgroundColor == null)
backgroundColor = getDefaultBackground();
Color foregroundColor = getForeground();
if (foregroundColor == null)
foregroundColor = getDefaultForeground();
Color infoColor = new Color(display, blend(
backgroundColor.getRGB(), foregroundColor.getRGB(),
0.56f));
infoLabel.setForeground(infoColor);
return infoLabel;
}
/**
* Returns an RGB that lies between the given foreground and background
* colors using the given mixing factor. A factor of 1.0 will produce a
* color equal to fg, while a factor of 0.0 will produce one
* equal to bg.
* @param bg the background color
* @param fg the foreground color
* @param factor the mixing factor, must be in [0, 1]
*
* @return the interpolated color
* @since 3.6
*/
private static RGB blend(RGB bg, RGB fg, float factor) {
// copy of org.eclipse.jface.internal.text.revisions.Colors#blend(..)
Assert.isLegal(bg != null);
Assert.isLegal(fg != null);
Assert.isLegal(factor >= 0f && factor <= 1f);
float complement = 1f - factor;
return new RGB(
(int) (complement * bg.red + factor * fg.red),
(int) (complement * bg.green + factor * fg.green),
(int) (complement * bg.blue + factor * fg.blue)
);
}
/**
* Create a horizontal separator for the given parent.
*
* @param parent
* The parent composite.
* @return The Control representing the horizontal separator.
*/
private Control createHorizontalSeparator(Composite parent) {
Label separator = new Label(parent, SWT.SEPARATOR | SWT.HORIZONTAL);
GridDataFactory.fillDefaults().align(SWT.FILL, SWT.CENTER).grab(true,
false).applyTo(separator);
return separator;
}
/**
* Create the dialog's menu for the move and resize actions.
*
* @param parent
* The parent composite.
*/
private void createDialogMenu(Composite parent) {
toolBar = new ToolBar(parent, SWT.FLAT);
ToolItem viewMenuButton = new ToolItem(toolBar, SWT.PUSH, 0);
GridDataFactory.fillDefaults().align(SWT.END, SWT.CENTER).applyTo(toolBar);
viewMenuButton.setImage(JFaceResources.getImage(POPUP_IMG_MENU));
viewMenuButton.setDisabledImage(JFaceResources.getImage(POPUP_IMG_MENU_DISABLED));
viewMenuButton.setToolTipText(JFaceResources.getString("PopupDialog.menuTooltip")); //$NON-NLS-1$
viewMenuButton.addSelectionListener(widgetSelectedAdapter(e -> showDialogMenu()));
// See https://bugs.eclipse.org/bugs/show_bug.cgi?id=177183
toolBar.addMouseListener(new MouseAdapter() {
@Override
public void mouseDown(MouseEvent e) {
showDialogMenu();
}
});
}
/**
* Fill the dialog's menu. Subclasses may extend or override.
*
* @param dialogMenu
* The dialog's menu.
*/
protected void fillDialogMenu(IMenuManager dialogMenu) {
dialogMenu.add(new GroupMarker("SystemMenuStart")); //$NON-NLS-1$
dialogMenu.add(new MoveAction());
dialogMenu.add(new ResizeAction());
if (showPersistActions) {
if (isUsing34API) {
dialogMenu.add(new PersistLocationAction());
dialogMenu.add(new PersistSizeAction());
} else {
dialogMenu.add(new PersistBoundsAction());
}
}
if (this.showPinAction) {
dialogMenu.add(new PinAction());
}
dialogMenu.add(new CloseAction());
dialogMenu.add(new Separator("SystemMenuEnd")); //$NON-NLS-1$
}
/**
* Perform the requested tracker action (resize or move).
*
* @param style
* The track style (resize or move).
*/
private void performTrackerAction(int style) {
Shell shell = getShell();
if (shell == null || shell.isDisposed()) {
return;
}
Tracker tracker = new Tracker(shell.getDisplay(), style);
tracker.setStippled(true);
Rectangle[] r = new Rectangle[] { shell.getBounds() };
tracker.setRectangles(r);
// Ignore any deactivate events caused by opening the tracker.
// See https://bugs.eclipse.org/bugs/show_bug.cgi?id=120656
boolean oldListenToDeactivate = listenToDeactivate;
listenToDeactivate = false;
if (tracker.open()) {
if (!shell.isDisposed()) {
shell.setBounds(tracker.getRectangles()[0]);
}
}
tracker.dispose();
listenToDeactivate = oldListenToDeactivate;
}
/**
* Show the dialog's menu. This message has no effect if the receiver was
* not configured to show a menu. Clients may call this method in order to
* trigger the menu via keystrokes or other gestures. Subclasses typically
* do not override method.
*/
protected void showDialogMenu() {
if (!showDialogMenu) {
return;
}
if (menuManager == null) {
menuManager = new MenuManager();
fillDialogMenu(menuManager);
}
// Setting this flag works around a problem that remains on X only,
// whereby activating the menu deactivates our shell.
listenToDeactivate = !Util.isGtk();
Menu menu = menuManager.createContextMenu(getShell());
Rectangle bounds = toolBar.getBounds();
Point topLeft = new Point(bounds.x, bounds.y + bounds.height);
topLeft = getShell().toDisplay(topLeft);
menu.setLocation(topLeft.x, topLeft.y);
menu.setVisible(true);
}
/**
* Set the text to be shown in the popup's info area. This message has no
* effect if there was no info text supplied when the dialog first opened.
* Subclasses may override this method.
*
* @param text
* the text to be shown when the info area is displayed.
*/
protected void setInfoText(String text) {
infoText = text;
if (infoLabel != null) {
infoLabel.setText(text);
}
}
/**
* Set the text to be shown in the popup's title area. This message has no
* effect if there was no title label specified when the dialog was
* originally opened. Subclasses may override this method.
*
* @param text
* the text to be shown when the title area is displayed.
*/
protected void setTitleText(String text) {
titleText = text;
if (titleLabel != null) {
titleLabel.setText(text);
}
}
/**
* Return a boolean indicating whether this dialog will persist its
* location. This value is initially set in the dialog's constructor, but
* can be modified if the persist location action is shown on the menu and
* the user has changed its value. Subclasses may override this method.
*
* @return true if the dialog's location will be persisted,
* false if it will not.
*
* @see #getPersistSize()
* @since 3.4
*/
protected boolean getPersistLocation() {
return persistLocation;
}
/**
* Return a boolean indicating whether this dialog will persist its size.
* This value is initially set in the dialog's constructor, but can be
* modified if the persist size action is shown on the menu and the user has
* changed its value. Subclasses may override this method.
*
* @return true if the dialog's size will be persisted,
* false if it will not.
*
* @see #getPersistLocation()
* @since 3.4
*/
protected boolean getPersistSize() {
return persistSize;
}
/**
* Opens this window, creating it first if it has not yet been created.
*
* This method is reimplemented for special configuration of PopupDialogs.
* It never blocks on open, immediately returning OK if the
* open is successful, or CANCEL if it is not. It provides
* framework hooks that allow subclasses to set the focus and tab order, and
* avoids the use of shell.open() in cases where the focus
* should not be given to the shell initially.
*
* @return the return code
*
* @see org.eclipse.jface.window.Window#open()
*/
@Override
public int open() {
Shell shell = getShell();
if (shell == null || shell.isDisposed()) {
shell = null;
// create the window
create();
shell = getShell();
}
// provide a hook for adjusting the bounds. This is only
// necessary when there is content driven sizing that must be
// adjusted each time the dialog is opened.
adjustBounds();
// limit the shell size to the display size
constrainShellSize();
// set up the tab order for the dialog
setTabOrder((Composite) getContents());
// initialize flags for listening to deactivate
listenToDeactivate = false;
listenToParentDeactivate = false;
// open the window
if (takeFocusOnOpen) {
shell.open();
getFocusControl().setFocus();
} else {
shell.setVisible(true);
}
return OK;
}
/**
* Closes this window, disposes its shell, and removes this window from its
* window manager (if it has one).
*
* This method is extended to save the dialog bounds and initialize widget
* state so that the widgets can be recreated if the dialog is reopened.
* This method may be extended (super.close must be called).
*
*
* @return true if the window is (or was already) closed, and
* false if it is still open
*/
@Override
public boolean close() {
// If already closed, there is nothing to do.
// See https://bugs.eclipse.org/bugs/show_bug.cgi?id=127505
if (getShell() == null || getShell().isDisposed()) {
return true;
}
saveDialogBounds(getShell());
// Widgets are about to be disposed, so null out any state
// related to them that was not handled in dispose listeners.
// We do this before disposal so that any received activate or
// deactivate events are duly ignored.
initializeWidgetState();
if (parentDeactivateListener != null) {
getShell().getParent().removeListener(SWT.Deactivate,
parentDeactivateListener);
parentDeactivateListener = null;
}
return super.close();
}
/**
* Gets the dialog settings that should be used for remembering the bounds
* of the dialog. Subclasses should override this method when they wish to
* persist the bounds of the dialog.
*
* @return settings the dialog settings used to store the dialog's location
* and/or size, or null if the dialog's bounds should
* never be stored.
*/
protected IDialogSettings getDialogSettings() {
return null;
}
/**
* Saves the bounds of the shell in the appropriate dialog settings. The
* bounds are recorded relative to the parent shell, if there is one, or
* display coordinates if there is no parent shell. Subclasses typically
* need not override this method, but may extend it (calling
* super.saveDialogBounds if additional bounds information
* should be stored. Clients may also call this method to persist the bounds
* at times other than closing the dialog.
*
* @param shell
* The shell whose bounds are to be stored
*/
protected void saveDialogBounds(Shell shell) {
IDialogSettings settings = getDialogSettings();
if (settings != null) {
Point shellLocation = shell.getLocation();
Point shellSize = shell.getSize();
Shell parent = getParentShell();
if (parent != null) {
Point parentLocation = parent.getLocation();
shellLocation.x -= parentLocation.x;
shellLocation.y -= parentLocation.y;
}
String prefix = getClass().getName();
if (persistSize) {
settings.put(prefix + DIALOG_WIDTH, shellSize.x);
settings.put(prefix + DIALOG_HEIGHT, shellSize.y);
}
if (persistLocation) {
settings.put(prefix + DIALOG_ORIGIN_X, shellLocation.x);
settings.put(prefix + DIALOG_ORIGIN_Y, shellLocation.y);
}
if (showPersistActions && showDialogMenu) {
settings.put(getClass().getName() + DIALOG_USE_PERSISTED_SIZE,
persistSize);
settings.put(getClass().getName()
+ DIALOG_USE_PERSISTED_LOCATION, persistLocation);
}
}
}
@Override
protected Point getInitialSize() {
Point result = getDefaultSize();
if (persistSize) {
IDialogSettings settings = getDialogSettings();
if (settings != null) {
try {
int width = settings.getInt(getClass().getName()
+ DIALOG_WIDTH);
int height = settings.getInt(getClass().getName()
+ DIALOG_HEIGHT);
result = new Point(width, height);
} catch (NumberFormatException e) {
}
}
}
// No attempt is made to constrain the bounds. The default
// constraining behavior in Window will be used.
return result;
}
/**
* Return the default size to use for the shell. This default size is used
* if the dialog does not have any persisted size to restore. The default
* implementation returns the preferred size of the shell. Subclasses should
* override this method when an alternate default size is desired, rather
* than overriding {@link #getInitialSize()}.
*
* @return the initial size of the shell
*
* @see #getPersistSize()
* @since 3.4
*/
protected Point getDefaultSize() {
return super.getInitialSize();
}
/**
* Returns the default location to use for the shell. This default location
* is used if the dialog does not have any persisted location to restore.
* The default implementation uses the location computed by
* {@link org.eclipse.jface.window.Window#getInitialLocation(Point)}.
* Subclasses should override this method when an alternate default location
* is desired, rather than overriding {@link #getInitialLocation(Point)}.
*
* @param initialSize
* the initial size of the shell, as returned by
* getInitialSize.
* @return the initial location of the shell
*
* @see #getPersistLocation()
* @since 3.4
*/
protected Point getDefaultLocation(Point initialSize) {
return super.getInitialLocation(initialSize);
}
/**
* Adjust the bounds of the popup as necessary prior to opening the dialog.
* Default is to do nothing, which honors any bounds set directly by clients
* or those that have been saved in the dialog settings. Subclasses should
* override this method when there are bounds computations that must be
* checked each time the dialog is opened.
*/
protected void adjustBounds() {
}
@Override
protected Point getInitialLocation(Point initialSize) {
Point result = getDefaultLocation(initialSize);
if (persistLocation) {
IDialogSettings settings = getDialogSettings();
if (settings != null) {
try {
int x = settings.getInt(getClass().getName()
+ DIALOG_ORIGIN_X);
int y = settings.getInt(getClass().getName()
+ DIALOG_ORIGIN_Y);
result = new Point(x, y);
// The coordinates were stored relative to the parent shell.
// Convert to display coordinates.
Shell parent = getParentShell();
if (parent != null) {
Point parentLocation = parent.getLocation();
result.x += parentLocation.x;
result.y += parentLocation.y;
}
} catch (NumberFormatException e) {
}
}
}
// No attempt is made to constrain the bounds. The default
// constraining behavior in Window will be used.
return result;
}
/**
* Apply any desired color to the specified composite and its children.
*
* @param composite
* the contents composite
*/
private void applyColors(Composite composite) {
// The getForeground() and getBackground() methods
// should not answer null, but IColorProvider clients
// are accustomed to null meaning use the default, so we guard
// against this assumption.
Color color = getForeground();
if (color == null)
color = getDefaultForeground();
applyForegroundColor(color, composite, getForegroundColorExclusions());
color = getBackground();
if (color == null)
color = getDefaultBackground();
applyBackgroundColor(color, composite, getBackgroundColorExclusions());
}
/**
* Get the foreground color that should be used for this popup. Subclasses
* may override.
*
* @return the foreground color to be used. Should not be null.
*
* @since 3.4
*
* @see #getForegroundColorExclusions()
*/
protected Color getForeground() {
return getDefaultForeground();
}
/**
* Get the background color that should be used for this popup. Subclasses
* may override.
*
* @return the background color to be used. Should not be null.
*
* @since 3.4
*
* @see #getBackgroundColorExclusions()
*/
protected Color getBackground() {
return getDefaultBackground();
}
/**
* Return the default foreground color used for popup dialogs.
*
* @return the default foreground color.
*/
private Color getDefaultForeground() {
if ((getShellStyle() & SWT.NO_FOCUS) != 0) {
return JFaceResources.getColorRegistry().get(JFacePreferences.INFORMATION_FOREGROUND_COLOR);
}
return JFaceResources.getColorRegistry().get(JFacePreferences.CONTENT_ASSIST_FOREGROUND_COLOR);
}
/**
* Return the default background color used for popup dialogs.
*
* @return the default background color
*/
private Color getDefaultBackground() {
if ((getShellStyle() & SWT.NO_FOCUS) != 0) {
return JFaceResources.getColorRegistry().get(JFacePreferences.INFORMATION_BACKGROUND_COLOR);
}
return JFaceResources.getColorRegistry().get(JFacePreferences.CONTENT_ASSIST_BACKGROUND_COLOR);
}
/**
* Apply any desired fonts to the specified composite and its children.
*
* @param composite
* the contents composite
*/
private void applyFonts(Composite composite) {
Dialog.applyDialogFont(composite);
if (titleLabel != null) {
Font font = titleLabel.getFont();
FontData[] fontDatas = font.getFontData();
for (FontData fontData : fontDatas) {
fontData.setStyle(SWT.BOLD);
}
titleFont = new Font(titleLabel.getDisplay(), fontDatas);
titleLabel.setFont(titleFont);
}
if (infoLabel != null) {
Font font = infoLabel.getFont();
FontData[] fontDatas = font.getFontData();
for (FontData fontData : fontDatas) {
fontData.setHeight(fontData.getHeight() * 9 / 10);
}
infoFont = new Font(infoLabel.getDisplay(), fontDatas);
infoLabel.setFont(infoFont);
}
}
/**
* Set the specified foreground color for the specified control and all of
* its children, except for those specified in the list of exclusions.
*
* @param color
* the color to use as the foreground color
* @param control
* the control whose color is to be changed
* @param exclusions
* a list of controls who are to be excluded from getting their
* color assigned
*/
private void applyForegroundColor(Color color, Control control,
List exclusions) {
if (!exclusions.contains(control)) {
control.setForeground(color);
}
if (control instanceof Composite) {
Control[] children = ((Composite) control).getChildren();
for (Control element : children) {
applyForegroundColor(color, element, exclusions);
}
}
}
/**
* Set the specified background color for the specified control and all of
* its children, except for those specified in the list of exclusions.
*
* @param color
* the color to use as the background color
* @param control
* the control whose color is to be changed
* @param exclusions
* a list of controls who are to be excluded from getting their
* color assigned
*/
private void applyBackgroundColor(Color color, Control control,
List exclusions) {
if (!exclusions.contains(control)) {
control.setBackground(color);
}
if (control instanceof Composite) {
Control[] children = ((Composite) control).getChildren();
for (Control element : children) {
applyBackgroundColor(color, element, exclusions);
}
}
}
/**
* Set the specified foreground color for the specified control and all of
* its children. Subclasses may override this method, but typically do not.
* If a subclass wishes to exclude a particular control in its contents from
* getting the specified foreground color, it may instead override
* {@link #getForegroundColorExclusions()}.
*
* @param color
* the color to use as the foreground color
* @param control
* the control whose color is to be changed
* @see PopupDialog#getForegroundColorExclusions()
*/
protected void applyForegroundColor(Color color, Control control) {
applyForegroundColor(color, control, getForegroundColorExclusions());
}
/**
* Set the specified background color for the specified control and all of
* its children. Subclasses may override this method, but typically do not.
* If a subclass wishes to exclude a particular control in its contents from
* getting the specified background color, it may instead override
* {@link #getBackgroundColorExclusions()}
*
* @param color
* the color to use as the background color
* @param control
* the control whose color is to be changed
* @see PopupDialog#getBackgroundColorExclusions()
*/
protected void applyBackgroundColor(Color color, Control control) {
applyBackgroundColor(color, control, getBackgroundColorExclusions());
}
/**
* Return a list of controls which should never have their foreground color
* reset. Subclasses may extend this method, but should always call
* super.getForegroundColorExclusions to aggregate the list.
*
*
* @return the List of controls
*/
protected List getForegroundColorExclusions() {
List list = new ArrayList<>(3);
if (infoLabel != null) {
list.add(infoLabel);
}
if (titleSeparator != null) {
list.add(titleSeparator);
}
if (infoSeparator != null) {
list.add(infoSeparator);
}
return list;
}
/**
* Return a list of controls which should never have their background color
* reset. Subclasses may extend this method, but should always call
* super.getBackgroundColorExclusions to aggregate the list.
*
* @return the List of controls
*/
protected List getBackgroundColorExclusions() {
List list = new ArrayList<>(2);
if (titleSeparator != null) {
list.add(titleSeparator);
}
if (infoSeparator != null) {
list.add(infoSeparator);
}
return list;
}
/**
* Initialize any state related to the widgetry that should be set up each
* time widgets are created.
*/
private void initializeWidgetState() {
menuManager = null;
dialogArea = null;
titleLabel = null;
titleSeparator = null;
infoSeparator = null;
infoLabel = null;
toolBar = null;
// If the menu item for persisting bounds is displayed, use the stored
// value to determine whether any persisted bounds should be honored at
// all.
if (showDialogMenu && showPersistActions) {
IDialogSettings settings = getDialogSettings();
if (settings != null) {
String key = getClass().getName() + DIALOG_USE_PERSISTED_SIZE;
if (settings.get(key) != null || !isUsing34API)
persistSize = settings.getBoolean(key);
key = getClass().getName() + DIALOG_USE_PERSISTED_LOCATION;
if (settings.get(key) != null || !isUsing34API)
persistLocation = settings.getBoolean(key);
}
}
}
/**
* The dialog is being disposed. Dispose of any resources allocated.
*/
private void handleDispose() {
if (infoFont != null && !infoFont.isDisposed()) {
infoFont.dispose();
}
infoFont = null;
if (titleFont != null && !titleFont.isDisposed()) {
titleFont.dispose();
}
titleFont = null;
}
}