org.openxdata.runner.client.controller.FormRunnerController.java Source code

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Here is the source code for org.openxdata.runner.client.controller.FormRunnerController.java

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package org.openxdata.runner.client.controller;

import com.google.gwt.core.client.GWT;
import java.util.ArrayList;
import java.util.List;

import org.openxdata.runner.client.widget.FormRunnerWidget;
import org.openxdata.sharedlib.client.OpenXdataConstants;
import org.openxdata.sharedlib.client.controller.SubmitListener;
import org.openxdata.sharedlib.client.model.FormDef;
import org.openxdata.sharedlib.client.util.FormUtil;
import org.openxdata.sharedlib.client.widget.RuntimeWidgetWrapper;
import org.openxdata.sharedlib.client.xforms.XformParser;

import com.google.gwt.core.client.Scheduler;
import com.google.gwt.core.client.Scheduler.ScheduledCommand;
import com.google.gwt.http.client.Request;
import com.google.gwt.http.client.RequestBuilder;
import com.google.gwt.http.client.RequestCallback;
import com.google.gwt.http.client.RequestException;
import com.google.gwt.http.client.Response;
import com.google.gwt.http.client.URL;
import com.google.gwt.user.client.Window;
import org.openxdata.sharedlib.client.locale.FormsConstants;

/**
 * Controls the interactions between the views for the form runner
 * and also handles server side communication on behalf of this view.
 * 
 *  www.openxdata.org - Licensed as written in license.txt and original sources of this file and its authors are found in sources.txt.
 *
 */
public class FormRunnerController implements SubmitListener {

    private final FormsConstants i18n = GWT.create(FormsConstants.class);

    private FormRunnerWidget formRunner;
    private String xformXml;
    private String layoutXml;
    private String javaScriptSrc;
    private int formId;
    private int entityId;

    public FormRunnerController(FormRunnerWidget formRunner) {
        this.formRunner = formRunner;
    }

    public void loadForm(int frmId, int entyId) {
        this.formId = frmId;
        this.entityId = entyId;

        FormUtil.dlg.setText(i18n.openingForm());
        FormUtil.dlg.center();

        Scheduler.get().scheduleDeferred(new ScheduledCommand() {
            public void execute() {

                String url = FormUtil.getHostPageBaseURL();
                url += FormUtil.getEntityFormDefDownloadUrlSuffix();
                url += FormUtil.getFormIdName() + "=" + formId;
                url += "&" + FormUtil.getEntityIdName() + "=" + entityId;

                RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, URL.encode(url));

                try {
                    builder.sendRequest(null, new RequestCallback() {
                        public void onResponseReceived(Request request, Response response) {

                            if (response.getStatusCode() != Response.SC_OK) {
                                FormUtil.displayReponseError(response);
                                return;
                            }

                            String xml = response.getText();
                            if (xml == null || xml.length() == 0) {
                                FormUtil.dlg.hide();
                                Window.alert(i18n.noDataFound());
                                return;
                            }

                            xformXml = null;
                            layoutXml = null;
                            javaScriptSrc = null;

                            int pos = xml.indexOf(OpenXdataConstants.OPENXDATA_FORMDEF_LAYOUT_XML_SEPARATOR);
                            int pos2 = xml.indexOf(OpenXdataConstants.OPENXDATA_FORMDEF_JAVASCRIPT_SRC_SEPARATOR);
                            if (pos > 0) {
                                xformXml = xml.substring(0, pos);
                                layoutXml = xml.substring(
                                        pos + OpenXdataConstants.OPENXDATA_FORMDEF_LAYOUT_XML_SEPARATOR.length(),
                                        pos2 > 0 ? pos2 : xml.length());

                                if (pos2 > 0)
                                    javaScriptSrc = xml.substring(
                                            pos2 + OpenXdataConstants.OPENXDATA_FORMDEF_JAVASCRIPT_SRC_SEPARATOR
                                                    .length(),
                                            xml.length());

                                openForm();
                            } else {
                                FormUtil.dlg.hide();
                                Window.alert(i18n.noFormLayout());
                            }
                        }

                        public void onError(Request request, Throwable exception) {
                            FormUtil.displayException(exception);
                        }
                    });
                } catch (RequestException ex) {
                    FormUtil.displayException(ex);
                }
            }
        });
    }

    public void openForm() {
        FormUtil.dlg.setText(i18n.openingForm());
        FormUtil.dlg.center();

        Scheduler.get().scheduleDeferred(new ScheduledCommand() {
            public void execute() {
                try {
                    List<RuntimeWidgetWrapper> externalSourceWidgets = new ArrayList<RuntimeWidgetWrapper>();
                    FormDef formDef = XformParser.fromXform2FormDef(xformXml);
                    formRunner.loadForm(formDef, layoutXml, javaScriptSrc, externalSourceWidgets);

                    FormUtil.dlg.hide();
                } catch (Exception ex) {
                    FormUtil.displayException(ex);
                }
            }
        });
    }

    public void onCancel() {
        String url = FormUtil.getHostPageBaseURL();
        url += FormUtil.getAfterSubmitUrlSuffix();

        if (FormUtil.appendEntityIdAfterSubmit()) {
            url += FormUtil.getEntityIdName();
            url += "=" + entityId;
        }

        Window.Location.replace(url);
    }

    public void onSubmit(String xml) {

        FormUtil.dlg.setText(i18n.submitting());
        FormUtil.dlg.center();

        final String submitXml = xml;

        Scheduler.get().scheduleDeferred(new ScheduledCommand() {
            public void execute() {
                String url = FormUtil.getHostPageBaseURL();
                url += FormUtil.getFormDataUploadUrlSuffix();

                RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, URL.encode(url));

                try {
                    builder.sendRequest(submitXml, new RequestCallback() {
                        public void onResponseReceived(Request request, Response response) {
                            FormUtil.dlg.hide();

                            if (response.getStatusCode() != Response.SC_OK) {
                                FormUtil.displayReponseError(response);
                                return;
                            }

                            if (response.getStatusCode() == Response.SC_OK) {
                                if (FormUtil.showSubmitSuccessMsg())
                                    Window.alert(i18n.formSubmitSuccess());

                                String url = FormUtil.getHostPageBaseURL();
                                url += FormUtil.getAfterSubmitUrlSuffix();

                                if (FormUtil.appendEntityIdAfterSubmit()) {
                                    url += FormUtil.getEntityIdName();
                                    if (entityId > 0)
                                        url += "=" + entityId;
                                    else if (entityId == 0 && response.getText().trim().length() > 0)
                                        url += "=" + response.getText();
                                }

                                Window.Location.replace(url);
                            } else
                                FormUtil.displayReponseError(response);
                        }

                        public void onError(Request request, Throwable exception) {
                            FormUtil.displayException(exception);
                        }
                    });
                } catch (RequestException ex) {
                    FormUtil.displayException(ex);
                }
            }
        });
    }
}