org.jboss.dashboard.ui.controller.requestChain.ModalDialogRenderer.java Source code

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Here is the source code for org.jboss.dashboard.ui.controller.requestChain.ModalDialogRenderer.java

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/**
 * Copyright (C) 2012 JBoss Inc
 *
 * Licensed 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
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jboss.dashboard.ui.controller.requestChain;

import org.jboss.dashboard.commons.comparator.ComparatorUtils;
import org.jboss.dashboard.factory.Factory;
import org.jboss.dashboard.ui.NavigationManager;
import org.jboss.dashboard.ui.components.ModalDialogComponent;
import org.jboss.dashboard.ui.controller.responses.ShowCurrentScreenResponse;
import org.jboss.dashboard.workspace.Parameters;
import org.jboss.dashboard.workspace.Panel;
import org.jboss.dashboard.ui.controller.responses.ShowComponentAjaxResponse;

/**
 * Catch the opening of the modal window an the successive requests over it and
 * give an appropriate response.
 */
public class ModalDialogRenderer extends RequestChainProcessor {
    private static transient org.apache.commons.logging.Log log = org.apache.commons.logging.LogFactory
            .getLog(ModalDialogRenderer.class.getName());

    protected boolean processRequest() throws Exception {

        // Check whether the modal window has been activated within the current request.
        ModalDialogStatusSaver modalStatus = ModalDialogStatusSaver.lookup();
        ModalDialogComponent modalDialog = modalStatus.getModalDialog();
        boolean modalOn = modalDialog.isShowing();
        boolean modalOnBeforeRequest = modalStatus.modalOnBeforeRequest();
        boolean modalSwitchedOn = !modalOnBeforeRequest && modalOn;
        boolean modalSwitchedOff = modalOnBeforeRequest && !modalOn;

        // Check if the navigation has changed (f.i: URL typing) and so auto-close the modal (if was opened).
        if (modalOn) {
            if (!modalSwitchedOn) {
                NavigationManager navMgr = NavigationManager.lookup();
                boolean navigationChanged = false;
                boolean configEnabled = navMgr.isShowingConfig();
                boolean wasConfigEnabled = modalStatus.isConfigEnabled();
                String currentWorkspaceId = navMgr.getCurrentWorkspaceId();
                String oldWorkspaceId = modalStatus.getCurrentWorkspaceId();
                Long currentSectionId = navMgr.getCurrentSectionId();
                Long oldSectionId = modalStatus.getCurrentSectionId();
                if (configEnabled != wasConfigEnabled)
                    navigationChanged = true;
                if (ComparatorUtils.compare(currentWorkspaceId, oldWorkspaceId, 1) != 0)
                    navigationChanged = true;
                if (ComparatorUtils.compare(currentSectionId, oldSectionId, 1) != 0)
                    navigationChanged = true;

                if (navigationChanged) {
                    modalDialog.hide();
                    return true;
                }
            }
            // Preserve panel session context when the modal has been activated inside a panel.
            Panel panel = getCurrentPanel();
            if (panel != null)
                getRequest().setAttribute(Parameters.RENDER_PANEL, panel);
        }

        // If modal has been switched off, return new screen response without ajax so as to
        // force to repaint all screen without the component.
        if (modalSwitchedOff) {
            getControllerStatus().setResponse(new ShowCurrentScreenResponse());
            return true;
        }

        // If no AJAX then just return the current response
        // The modal window is embedded into content.jsp so it will be displayed if the whole screen is repainted.
        String ajaxParam = getRequest().getParameter(Parameters.AJAX_ACTION);
        if (ajaxParam == null || !Boolean.valueOf(ajaxParam).booleanValue())
            return true;

        // If the modal window is on then show it.
        // The AJAX response varies depending whether the modal window is rendered for the first time or
        // it's a response inside the modal window.
        if (modalOn) {
            if (modalSwitchedOn)
                getControllerStatus().setResponse(new ShowComponentAjaxResponse(modalDialog));
            else
                getControllerStatus().setResponse(new ShowComponentAjaxResponse(modalDialog.getCurrentComponent()));
        }
        return true;
    }

    protected Panel getCurrentPanel() throws Exception {
        final String idPanel = getRequest().getParameter(Parameters.DISPATCH_IDPANEL);
        if (idPanel == null)
            return null;
        Long id = Long.decode(idPanel);

        NavigationManager navMgr = NavigationManager.lookup();
        Panel[] panels = navMgr.getCurrentSection().getAllPanels();
        for (int i = 0; i < panels.length; i++) {
            Panel panel = panels[i];
            if (panel.getPanelId().equals(id))
                return panel;
        }
        return null;
    }
}