com.risevision.ui.client.presentation.common.PresentationSelectorWidget.java Source code

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Here is the source code for com.risevision.ui.client.presentation.common.PresentationSelectorWidget.java

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// Copyright  2010 - May 2014 Rise Vision Incorporated.
// Use of this software is governed by the GPLv3 license
// (reproduced in the LICENSE file).

package com.risevision.ui.client.presentation.common;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.Anchor;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Label;
import com.risevision.common.client.info.PresentationInfo;
import com.risevision.ui.client.common.controller.SelectedCompanyController;
import com.risevision.ui.client.common.exception.ServiceFailedException;
import com.risevision.ui.client.common.service.PresentationServiceAsync;
import com.risevision.ui.client.common.service.oauth2.OAuth2ServiceWrapper;
import com.risevision.ui.client.common.widgets.SpacerWidget;
import com.risevision.ui.client.common.widgets.StatusBoxWidget;
import com.risevision.ui.client.presentation.PresentationSelectPopupWidget;

public class PresentationSelectorWidget extends HorizontalPanel {
    private String selectedPresentationId;
    private String defaultPresentationId;

    // are Default/Delete buttons enabled
    private boolean enableDefault;

    //RPC
    private final PresentationServiceAsync presentationService = OAuth2ServiceWrapper.getPresentationService();
    // UI Pieces
    private StatusBoxWidget statusBox = StatusBoxWidget.getInstance();
    private Label presentationLabel = new Label();
    private Anchor presentationChangeLink = new Anchor("Change");
    private Anchor presentationDeleteLink = new Anchor("Delete");
    private Anchor presentationDefaultLink = new Anchor("Default");
    private PresentationSelectPopupWidget selectWidget = PresentationSelectPopupWidget.getInstance();

    private Command selectCommand;

    public PresentationSelectorWidget() {
        this(true);
    }

    public PresentationSelectorWidget(boolean enableDefault) {
        this.enableDefault = enableDefault;

        if (enableDefault) {
            HorizontalPanel firstPanel = new HorizontalPanel();

            firstPanel.add(presentationLabel);
            firstPanel.setCellWidth(presentationLabel, "100%");
            presentationLabel.setWidth("275px");

            firstPanel.add(presentationChangeLink);
            firstPanel.add(new HTML("<span style='padding-left:20px'></span>"));
            firstPanel.add(presentationDeleteLink);

            add(firstPanel);
            setCellWidth(firstPanel, "450px");
            add(new HTML("<span style='padding-left:20px'></span>"));
            add(presentationDefaultLink);
        } else {
            add(presentationLabel);
            presentationLabel.setWidth("175px");

            add(new SpacerWidget());
            add(presentationChangeLink);
            setCellWidth(presentationChangeLink, "100%");
        }

        initActions();
        styleControls();
    }

    private void initActions() {
        selectCommand = new Command() {
            public void execute() {
                contentSelected();
            }
        };

        presentationChangeLink.addClickHandler(new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
                showSelectWidget();
            }
        });

        presentationDeleteLink.addClickHandler(new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
                selectedPresentationId = "";
                loadPresentationName();
            }
        });

        presentationDefaultLink.addClickHandler(new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
                if (defaultPresentationId != null && !defaultPresentationId.isEmpty()) {
                    selectedPresentationId = defaultPresentationId;
                    loadPresentationName();
                }
            }
        });
    }

    private void styleControls() {
        presentationLabel.addStyleName("rdn-OverflowElipsis");
    }

    public void init(String presentationId) {
        //      if (presentationId != null && !presentationId.isEmpty()) {
        selectedPresentationId = presentationId;
        loadPresentationName();
        //      }
        //      else {
        //         presentationLabel.setText("None");
        //      }
    }

    private void showSelectWidget() {
        selectWidget.show(selectCommand);
    }

    private void contentSelected() {
        PresentationInfo presentation = selectWidget.getCurrentPresentation();

        if (presentation != null) {
            selectedPresentationId = presentation.getId();
            presentationLabel.setText(presentation.getName());
        }

        selectWidget.hide();
    }

    private void loadPresentationName() {
        if (selectedPresentationId != null && !selectedPresentationId.isEmpty()
                && selectedPresentationId.equals(defaultPresentationId)) {
            presentationLabel.setText("Default presentation");
        } else if (selectedPresentationId != null && !selectedPresentationId.isEmpty()) {
            statusBox.setStatus(StatusBoxWidget.Status.WARNING, StatusBoxWidget.LOADING);
            presentationService.getPresentation(SelectedCompanyController.getInstance().getSelectedCompanyId(),
                    selectedPresentationId, new RpcCallBackHandler());
        } else {
            presentationLabel.setText("None");
        }
    }

    class RpcCallBackHandler implements AsyncCallback<PresentationInfo> {
        public void onFailure(Throwable caught) {
            if (caught instanceof ServiceFailedException
                    && ((ServiceFailedException) caught).getReason() == ServiceFailedException.NOT_FOUND) {
                if (enableDefault) {
                    presentationLabel.setText("Parent Network Operator Presentation");
                } else {
                    presentationLabel.setText("None");
                }
            } else {
                statusBox.setStatus(StatusBoxWidget.ErrorType.RPC);
            }
        }

        public void onSuccess(PresentationInfo result) {
            statusBox.clear();
            if (result != null)
                presentationLabel.setText(result.getName());
        }
    }

    public String getId() {
        return selectedPresentationId;
    }

    public void setDefaultPresentation(String presentationId) {
        if (presentationId != null && !presentationId.isEmpty()) {
            defaultPresentationId = presentationId;
        }
    }
}