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 * Licensed to the Apache Software Foundation (ASF) under one
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 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
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 *   http://www.apache.org/licenses/LICENSE-2.0
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 * Unless required by applicable law or agreed to in writing,
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package org.openoffice.setup.Controller;

import org.openoffice.setup.InstallData;
import org.openoffice.setup.PanelController;
import org.openoffice.setup.Panel.ChooseUninstallationComponents;
import org.openoffice.setup.ResourceManager;
import org.openoffice.setup.SetupData.PackageDescription;
import org.openoffice.setup.SetupData.SetupDataProvider;
import org.openoffice.setup.Util.Dumper;
import org.openoffice.setup.Util.Informer;
import org.openoffice.setup.Util.ModuleCtrl;

public class ChooseUninstallationComponentsCtrl extends PanelController {

    private String helpFile;

    public ChooseUninstallationComponentsCtrl() {
        super("ChooseUninstallationComponents", new ChooseUninstallationComponents());
        helpFile = "String_Helpfile_ChooseUninstallationComponents";
    }
    
    public String getNext() {
        return new String("UninstallationImminent");
    }
    
    public String getPrevious() {
        return new String("ChooseUninstallationType");
    }  

    public final String getHelpFileName () {
        return this.helpFile;
    }
    
    public boolean afterShow(boolean nextButtonPressed) {
        boolean repeatDialog = false;

        InstallData data = InstallData.getInstance();
        PackageDescription packageData = SetupDataProvider.getPackageDescription();

        if ( nextButtonPressed ) {

            if ( data.logModuleStates() ) {
                Dumper.logModuleStates(packageData, "Choose UninstallationComponents: Before checkVisibleModulesUninstall");
            }

            // Check, if at least one visible module is selected for uninstallation
            data.setVisibleModulesChecked(false);
            ModuleCtrl.checkVisibleModulesUninstall(packageData, data);

            if ( ! data.visibleModulesChecked() ) {
                String message = ResourceManager.getString("String_No_Uninstallcomponents_Selected_1") + "\n" +
                                 ResourceManager.getString("String_No_Uninstallcomponents_Selected_2");
                String title = ResourceManager.getString("String_Nothing_To_Uninstall");
                Informer.showInfoMessage(message, title);
                repeatDialog = true;            
            } else {
                // Check, if all visible modules are selected for uninstallation.
                // Then this shall be handled as complete uninstallation
                // -> The responsible value is InstallData.isMaskedCompleteUninstallation
                data.setMaskedCompleteUninstallation(true);
                ModuleCtrl.checkMaskedCompleteUninstallation(packageData, data);

                // If this is not a complete uninstallation, at least one language
                // module or one application module has to be installed.
                
                if ( ! data.isMaskedCompleteUninstallation() ) {

                    data.setApplicationModulesChecked(false);
                    ModuleCtrl.checkApplicationModulesUninstall(packageData, data);
                	
                    if ( ! data.applicationModulesChecked() ) {

                        String message = ResourceManager.getString("String_All_Applicationcomponents_Selected_1") + "\n" +
                                         ResourceManager.getString("String_All_Applicationcomponents_Selected_2");
                        String title = ResourceManager.getString("String_Change_Selection");
                        Informer.showInfoMessage(message, title);
                        repeatDialog = true;
                    } else {
                        if ( data.isMultiLingual()) {
                            data.setLanguageModulesChecked(false);
                            ModuleCtrl.checkLanguageModulesUninstall(packageData, data);

                            if ( ! data.languageModulesChecked() ) {

                                String message = ResourceManager.getString("String_All_Languagecomponents_Selected_1") + "\n" +
                                                 ResourceManager.getString("String_All_Languagecomponents_Selected_2");
                                String title = ResourceManager.getString("String_Change_Selection");
                                Informer.showInfoMessage(message, title);
                                repeatDialog = true;
                            }
                        }
                    }
                }
            }
        } else {  // the back button was pressed
            // Saving typical selection state values (always if back button is pressed!).
            ModuleCtrl.saveCustomSelectionStates(packageData);
            data.setCustomSelectionStateSaved(true);            
        }
        
        return repeatDialog;
    }
    
}