Example usage for com.google.gwt.gears.client.desktop OpenFilesHandler OpenFilesHandler

Introduction

In this page you can find the example usage for com.google.gwt.gears.client.desktop OpenFilesHandler OpenFilesHandler.

Prototype

OpenFilesHandler

Source Link

Usage

From source file:com.google.gwt.gears.sample.uploaddemo.client.UploadDemo.java

License:Apache License

/**
 * This is the entry point method./*  w  ww  . j a v a  2 s  .c  o  m*/
 */
public void onModuleLoad() {
    root = RootPanel.get();

    final Button browse = new Button("Browse");

    final Button upload = new Button("Upload");
    upload.setEnabled(false);

    final TextBox selected = new TextBox();
    selected.setEnabled(false);

    final SimplePanel progressInner = new SimplePanel();
    progressInner.addStyleName("progressInner");

    final SimplePanel progressGauge = new SimplePanel();
    progressGauge.addStyleName("progressGauge");
    progressGauge.add(progressInner);

    final HTML result = new HTML();

    browse.addClickHandler(new ClickHandler() {
        public void onClick(ClickEvent event) {
            Desktop desktop = factory.createDesktop();
            desktop.openFiles(new OpenFilesHandler() {

                public void onOpenFiles(OpenFilesEvent event) {
                    File[] files = event.getFiles();
                    selected.setText(files[0].getName());
                    selectedFile = files[0].getBlob();
                    upload.setEnabled(true);
                }
            }, true);
        }
    });

    upload.addClickHandler(new ClickHandler() {
        public void onClick(ClickEvent event) {
            HttpRequest request = factory.createHttpRequest();
            request.open("POST", GWT.getModuleBaseURL() + "upload");
            request.setRequestHeader("X-Filename", selected.getText());

            request.setCallback(new RequestCallback() {
                public void onResponseReceived(HttpRequest request) {
                    String msg = request.getStatus() + " " + request.getResponseText();
                    if (request.getStatus() != 200) {
                        result.setHTML("<p style=\"color:red\">" + msg + "</p>");
                    } else {
                        result.setHTML("<p style=\"color:green\">" + msg + "</p>");
                    }
                }
            });

            request.getUpload().setProgressHandler(new ProgressHandler() {
                public void onProgress(ProgressEvent event) {
                    double pcnt = ((double) event.getLoaded() / event.getTotal());
                    progressInner.setWidth((int) Math.floor(pcnt * 100) + "%");
                }
            });
            request.send(selectedFile);
        }
    });

    HorizontalPanel inputPanel = new HorizontalPanel();
    inputPanel.add(selected);
    inputPanel.add(browse);
    inputPanel.add(upload);

    root.add(inputPanel);
    root.add(new HTML("Progress:"));
    root.add(progressGauge);
    root.add(result);
}

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From source file:org.gss_project.gss.web.client.FileUploadGearsDialog.java

License:Open Source License

/**
 * The widget's constructor.//from ww  w. ja  v a 2  s  .  c  o m
 */
public FileUploadGearsDialog() {
    // Set the dialog's caption.
    setText("File upload");
    setAnimationEnabled(true);
    // Create a panel to hold all of the dialog widgets.
    VerticalPanel panel = new VerticalPanel();
    final HTML info = new HTML("You may select one or more files to upload.");
    info.addStyleName("gss-uploadNote");
    panel.add(info);
    // Add an informative label with the folder name.
    Object selection = GSS.get().getTreeView().getSelection();
    folder = ((RestResourceWrapper) selection).getResource();

    browse = new Button("Browse...");

    HorizontalPanel fileUploadPanel = new HorizontalPanel();
    fileUploadPanel.add(browse);

    generalTable = new FlexTable();
    generalTable.setText(0, 0, "Folder");
    generalTable.setText(1, 0, "File");
    generalTable.setText(0, 1, folder.getName());
    generalTable.setWidget(1, 1, fileUploadPanel);
    generalTable.getCellFormatter().setStyleName(0, 0, "props-labels");
    generalTable.getCellFormatter().setStyleName(1, 0, "props-labels");
    generalTable.getCellFormatter().setStyleName(0, 1, "props-values");
    generalTable.getCellFormatter().setStyleName(1, 1, "props-values");
    generalTable.setCellSpacing(4);

    panel.add(generalTable);

    // Create a panel to hold the buttons.
    HorizontalPanel buttons = new HorizontalPanel();

    submit = new Button("Upload");
    submit.addClickHandler(new ClickHandler() {
        @Override
        public void onClick(ClickEvent event) {
            prepareAndSubmit();
        }
    });
    submit.setEnabled(false);
    buttons.add(submit);
    buttons.setCellHorizontalAlignment(submit, HasHorizontalAlignment.ALIGN_CENTER);
    // Create the 'Cancel' button, along with a listener that hides the
    // dialog when the button is clicked.
    Button cancel = new Button("Cancel", new ClickHandler() {
        @Override
        public void onClick(ClickEvent event) {
            canContinue = false;
            cancelUpload();
            GSS.get().showFileList(true);
        }
    });
    buttons.add(cancel);
    buttons.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER);
    buttons.setSpacing(8);
    buttons.addStyleName("gss-DialogBox");

    browse.addClickHandler(new ClickHandler() {
        @Override
        public void onClick(ClickEvent event) {
            Desktop desktop = factory.createDesktop();
            desktop.openFiles(new OpenFilesHandler() {

                @Override
                public void onOpenFiles(OpenFilesEvent ofevent) {
                    fileObjects = ofevent.getFiles();
                    selectedFiles.addAll(Arrays.asList(fileObjects));
                    for (int i = 0; i < selectedFiles.size(); i++) {
                        generalTable.setText(i + 1, 0, "File");
                        generalTable.setText(i + 1, 1, selectedFiles.get(i).getName());
                        ProgressBar progress = new ProgressBar(20, 0);
                        generalTable.setWidget(i + 1, 2, progress);
                        progressBars.add(progress);
                        generalTable.getCellFormatter().setStyleName(i + 1, 0, "props-labels");
                        generalTable.getCellFormatter().setStyleName(i + 1, 1, "props-values");
                    }
                    submit.setEnabled(true);
                }
            });
        }
    });

    panel.add(buttons);
    panel.setCellHorizontalAlignment(buttons, HasHorizontalAlignment.ALIGN_CENTER);
    panel.addStyleName("gss-DialogBox");
    addStyleName("gss-DialogBox");
    setWidget(panel);
}

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