Source Code Cross Referenced for ImportResourcesAction.java in  » IDE-Eclipse » ui-workbench » org » eclipse » ui » actions » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Eclipse » ui workbench » org.eclipse.ui.actions 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*******************************************************************************
002:         * Copyright (c) 2000, 2006 IBM Corporation and others.
003:         * All rights reserved. This program and the accompanying materials
004:         * are made available under the terms of the Eclipse Public License v1.0
005:         * which accompanies this distribution, and is available at
006:         * http://www.eclipse.org/legal/epl-v10.html
007:         *
008:         * Contributors:
009:         *     IBM Corporation - initial API and implementation
010:         *******************************************************************************/package org.eclipse.ui.actions;
011:
012:        import org.eclipse.jface.dialogs.IDialogSettings;
013:        import org.eclipse.jface.viewers.ISelection;
014:        import org.eclipse.jface.viewers.IStructuredSelection;
015:        import org.eclipse.jface.viewers.StructuredSelection;
016:        import org.eclipse.jface.wizard.WizardDialog;
017:        import org.eclipse.swt.widgets.Shell;
018:        import org.eclipse.ui.ISelectionListener;
019:        import org.eclipse.ui.IWorkbench;
020:        import org.eclipse.ui.IWorkbenchPart;
021:        import org.eclipse.ui.IWorkbenchWindow;
022:        import org.eclipse.ui.PlatformUI;
023:        import org.eclipse.ui.internal.IWorkbenchGraphicConstants;
024:        import org.eclipse.ui.internal.IWorkbenchHelpContextIds;
025:        import org.eclipse.ui.internal.PerspectiveTracker;
026:        import org.eclipse.ui.internal.WorkbenchImages;
027:        import org.eclipse.ui.internal.WorkbenchMessages;
028:        import org.eclipse.ui.internal.WorkbenchPlugin;
029:        import org.eclipse.ui.internal.dialogs.ImportExportWizard;
030:
031:        /**
032:         * Action representing a generic import operation.
033:         * <p>
034:         * This class may be instantiated. It is not intended to be subclassed.
035:         * </p>
036:         * <p>
037:         * This method automatically registers listeners so that it can keep its
038:         * enablement state up to date. Ordinarily, the window's references to these
039:         * listeners will be dropped automatically when the window closes. However,
040:         * if the client needs to get rid of an action while the window is still open,
041:         * the client must call IWorkbenchAction#dispose to give the
042:         * action an opportunity to deregister its listeners and to perform any other
043:         * cleanup.
044:         * 
045:         * </p>
046:         * <p>
047:         * Note: Despite the name, an import operation can deal with things other than
048:         * resources; the current name was retained for historical reasons.
049:         * </p>
050:         * 
051:         * @since 2.0
052:         */
053:        public class ImportResourcesAction extends BaseSelectionListenerAction
054:                implements  ActionFactory.IWorkbenchAction {
055:
056:            private static final int SIZING_WIZARD_WIDTH = 470;
057:
058:            private static final int SIZING_WIZARD_HEIGHT = 550;
059:
060:            /**
061:             * The workbench window; or <code>null</code> if this
062:             * action has been <code>dispose</code>d.
063:             */
064:            private IWorkbenchWindow workbenchWindow;
065:
066:            /**
067:             * Tracks perspective activation, to update this action's
068:             * enabled state.
069:             */
070:            private PerspectiveTracker tracker;
071:
072:            /** 
073:             * Listen for the selection changing and update the
074:             * actions that are interested
075:             */
076:            private final ISelectionListener selectionListener = new ISelectionListener() {
077:                public void selectionChanged(IWorkbenchPart part,
078:                        ISelection selection) {
079:                    if (selection instanceof  IStructuredSelection) {
080:                        IStructuredSelection structured = (IStructuredSelection) selection;
081:                        ImportResourcesAction.this .selectionChanged(structured);
082:                    }
083:                }
084:            };
085:
086:            /**
087:             * Create a new instance of this class.
088:             * 
089:             * @param window the window
090:             */
091:            public ImportResourcesAction(IWorkbenchWindow window) {
092:                super (WorkbenchMessages.ImportResourcesAction_text);
093:                if (window == null) {
094:                    throw new IllegalArgumentException();
095:                }
096:                this .workbenchWindow = window;
097:                tracker = new PerspectiveTracker(window, this );
098:                setToolTipText(WorkbenchMessages.ImportResourcesAction_toolTip);
099:                setId("import"); //$NON-NLS-1$
100:                window.getWorkbench().getHelpSystem().setHelp(this ,
101:                        IWorkbenchHelpContextIds.IMPORT_ACTION);
102:                // self-register selection listener (new for 3.0)
103:                workbenchWindow.getSelectionService().addSelectionListener(
104:                        selectionListener);
105:
106:                setImageDescriptor(WorkbenchImages
107:                        .getImageDescriptor(IWorkbenchGraphicConstants.IMG_ETOOL_IMPORT_WIZ));
108:            }
109:
110:            /**
111:             * Create a new instance of this class
112:             * 
113:             * @param workbench the workbench
114:             * @deprecated use the constructor <code>ImportResourcesAction(IWorkbenchWindow)</code>
115:             */
116:            public ImportResourcesAction(IWorkbench workbench) {
117:                this (workbench.getActiveWorkbenchWindow());
118:            }
119:
120:            /**
121:             * Invoke the Import wizards selection Wizard.
122:             */
123:            public void run() {
124:                if (workbenchWindow == null) {
125:                    // action has been disposed
126:                    return;
127:                }
128:                ImportExportWizard wizard = new ImportExportWizard(
129:                        ImportExportWizard.IMPORT);
130:                IStructuredSelection selectionToPass;
131:                // get the current workbench selection
132:                ISelection workbenchSelection = workbenchWindow
133:                        .getSelectionService().getSelection();
134:                if (workbenchSelection instanceof  IStructuredSelection) {
135:                    selectionToPass = (IStructuredSelection) workbenchSelection;
136:                } else {
137:                    selectionToPass = StructuredSelection.EMPTY;
138:                }
139:
140:                wizard.init(workbenchWindow.getWorkbench(), selectionToPass);
141:                IDialogSettings workbenchSettings = WorkbenchPlugin
142:                        .getDefault().getDialogSettings();
143:                IDialogSettings wizardSettings = workbenchSettings
144:                        .getSection("ImportExportAction"); //$NON-NLS-1$
145:                if (wizardSettings == null) {
146:                    wizardSettings = workbenchSettings
147:                            .addNewSection("ImportExportAction"); //$NON-NLS-1$
148:                }
149:                wizard.setDialogSettings(wizardSettings);
150:                wizard.setForcePreviousAndNextButtons(true);
151:
152:                Shell parent = workbenchWindow.getShell();
153:                WizardDialog dialog = new WizardDialog(parent, wizard);
154:                dialog.create();
155:                dialog.getShell().setSize(
156:                        Math.max(SIZING_WIZARD_WIDTH, dialog.getShell()
157:                                .getSize().x), SIZING_WIZARD_HEIGHT);
158:                PlatformUI.getWorkbench().getHelpSystem().setHelp(
159:                        dialog.getShell(),
160:                        IWorkbenchHelpContextIds.IMPORT_WIZARD);
161:                dialog.open();
162:            }
163:
164:            /**
165:             * Sets the current selection. 
166:             * In for backwards compatability. Use selectionChanged() instead.
167:             * @param selection the new selection
168:             * @deprecated
169:             */
170:            public void setSelection(IStructuredSelection selection) {
171:                selectionChanged(selection);
172:            }
173:
174:            /* (non-Javadoc)
175:             * Method declared on ActionFactory.IWorkbenchAction.
176:             * @since 3.0
177:             */
178:            public void dispose() {
179:                if (workbenchWindow == null) {
180:                    // action has already been disposed
181:                    return;
182:                }
183:                tracker.dispose();
184:                workbenchWindow.getSelectionService().removeSelectionListener(
185:                        selectionListener);
186:                workbenchWindow = null;
187:            }
188:        }
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