Example usage for com.google.gwt.gears.client Factory getInstance

List of usage examples for com.google.gwt.gears.client Factory getInstance

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Introduction

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

Prototype

public static native Factory getInstance() ;

Source Link

Document

Returns the singleton instance of the Factory class or null if Gears is not installed or accessible.

Usage

From source file:com.google.gwt.gears.sample.database.client.DatabaseDemo.java

License:Apache License

public void onModuleLoad() {
    VerticalPanel outerPanel = new VerticalPanel();
    outerPanel.setSpacing(10);/*from  ww w .  j  av a  2s .c  o  m*/
    outerPanel.getElement().getStyle().setPropertyPx("margin", 15);

    HorizontalPanel textAndButtonsPanel = new HorizontalPanel();
    textAndButtonsPanel.add(new Label("Enter a Phrase: "));
    textAndButtonsPanel.add(input);
    textAndButtonsPanel.add(addButton);
    textAndButtonsPanel.add(clearButton);
    outerPanel.add(textAndButtonsPanel);
    outerPanel.add(new Label("Last 3 Entries:"));
    outerPanel.add(dataTable);

    for (int i = 0; i <= NUM_SAVED_ROWS; ++i) {
        dataTable.insertRow(i);
        for (int j = 0; j < NUM_DATA_TABLE_COLUMNS; j++) {
            dataTable.addCell(i);
        }
    }
    dataTable.setWidget(0, 0, new HTML("<b>Id</b>"));
    dataTable.setWidget(0, 1, new HTML("<b>Phrase</b>"));
    dataTable.setWidget(0, 2, new HTML("<b>Timestamp</b>"));

    // Create the database if it doesn't exist.
    try {
        db = Factory.getInstance().createDatabase();
        db.open("database-demo");
        db.execute(
                "CREATE TABLE IF NOT EXISTS Phrases (Id INTEGER PRIMARY KEY AUTOINCREMENT, Phrase VARCHAR(255), Timestamp INTEGER)");
    } catch (DatabaseException e) {
        RootPanel.get("demo").add(new HTML(
                "Error opening or creating database: <font color=\"red\">" + e.toString() + "</font>"));
        // Fatal error.  Do not build the interface.
        return;
    }

    input.addKeyboardListener(new KeyboardListenerAdapter() {
        @Override
        public void onKeyDown(Widget sender, char keyCode, int modifiers) {
            if (keyCode == KeyboardListener.KEY_ENTER) {
                insertPhrase();
            }
        }
    });

    addButton.addClickListener(new ClickListener() {
        public void onClick(Widget sender) {
            insertPhrase();
        }
    });

    clearButton.addClickListener(new ClickListener() {
        public void onClick(Widget sender) {
            clearPhrases();
            displayRecentPhrases();
        }
    });

    RootPanel.get("demo").add(outerPanel);
    displayRecentPhrases();
}

From source file:com.google.gwt.gears.sample.databasedemo.client.DatabaseDemo.java

License:Apache License

public void onModuleLoad() {
    VerticalPanel outerPanel = new VerticalPanel();
    outerPanel.setSpacing(10);/* ww w  . j av  a2  s. c om*/
    outerPanel.getElement().getStyle().setPropertyPx("margin", 15);

    HorizontalPanel textAndButtonsPanel = new HorizontalPanel();
    textAndButtonsPanel.add(new Label("Enter a Phrase: "));
    textAndButtonsPanel.add(input);
    textAndButtonsPanel.add(addButton);
    textAndButtonsPanel.add(clearButton);
    outerPanel.add(textAndButtonsPanel);
    outerPanel.add(new Label("Last 3 Entries:"));
    outerPanel.add(dataTable);

    for (int i = 0; i <= NUM_SAVED_ROWS; ++i) {
        dataTable.insertRow(i);
        for (int j = 0; j < NUM_DATA_TABLE_COLUMNS; j++) {
            dataTable.addCell(i);
        }
    }
    dataTable.setWidget(0, 0, new HTML("<b>Id</b>"));
    dataTable.setWidget(0, 1, new HTML("<b>Phrase</b>"));
    dataTable.setWidget(0, 2, new HTML("<b>Timestamp</b>"));

    // Create the database if it doesn't exist.
    try {
        db = Factory.getInstance().createDatabase();
        db.open("database-demo");
        db.execute(
                "CREATE TABLE IF NOT EXISTS Phrases (Id INTEGER PRIMARY KEY AUTOINCREMENT, Phrase VARCHAR(255), Timestamp INTEGER)");
    } catch (DatabaseException e) {
        RootPanel.get("demo").add(new HTML(
                "Error opening or creating database: <font color=\"red\">" + e.toString() + "</font>"));
        // Fatal error. Do not build the interface.
        return;
    }

    input.addKeyDownHandler(new KeyDownHandler() {
        public void onKeyDown(KeyDownEvent event) {
            if (event.getNativeKeyCode() == KeyCodes.KEY_ENTER) {
                insertPhrase();
            }
        }
    });

    addButton.addClickHandler(new ClickHandler() {
        public void onClick(ClickEvent event) {
            insertPhrase();
        }
    });

    clearButton.addClickHandler(new ClickHandler() {
        public void onClick(ClickEvent event) {
            clearPhrases();
            displayRecentPhrases();
        }
    });

    RootPanel.get("demo").add(outerPanel);
    displayRecentPhrases();
}

From source file:com.google.gwt.gears.sample.gwtnote.client.local.GearsHelper.java

License:Apache License

/**
 * Creates a new GearsHelper.//from  w w w.  j  av a  2  s.  c om
 */
public GearsHelper() {
    try {
        db = Factory.getInstance().createDatabase();
        try {
            db.execute(DB_FETCH_NAMES);
        } catch (GearsException ex) {
            db.execute(DB_CREATE);
        }

        // initialize the localstore and have it update the manifest
        localServer = Factory.getInstance().createLocalServer();
        store = localServer.createManagedStore("GWTGearsNote");
        store.setManifestUrl(GWT.getModuleBaseURL() + "manifest");
        store.checkForUpdate();
        Timer t = new Timer() {
            @Override
            public void run() {
                int status = store.getUpdateStatus();
                if (status == ManagedResourceStore.UPDATE_OK) {
                    this.cancel();
                } else if (status == ManagedResourceStore.UPDATE_FAILED) {
                    this.cancel();
                }
            }
        };
        t.scheduleRepeating(100);
    } catch (Throwable t) { // not just GearsException b/c we can also have NPEs
        localServer = null;
        store = null;
        db = null;
    }
}

From source file:com.google.gwt.gears.sample.managedresourcestore.client.ManagedResourceStoreDemo.java

License:Apache License

public void onModuleLoad() {
    HorizontalPanel hpanel = new HorizontalPanel();
    hpanel.setSpacing(10);/*  ww w  . j  a  v  a 2 s .  c o m*/
    RootPanel.get("demo").add(hpanel);

    hpanel.add(createManagedResourceStoreButton);

    // See if we're already running from a ManagedResourceStore
    try {
        LocalServer server = Factory.getInstance().createLocalServer();

        // This check to see if the host page can be served locally
        if (server.canServeLocally(Window.Location.getPath())) {
            createManagedResourceStoreButton.setText("Refresh Manifest");

            // Give the user an opportunity to delete the MRS
            hpanel.add(removeManagedResourceStoreButton);
        }
    } catch (GearsException e) {
        // Gears probably isn't available (e.g. hosted mode)
    }

    createManagedResourceStoreButton.addClickListener(new ClickListener() {
        public void onClick(Widget sender) {
            statusLabel.setText("Starting update");
            createManagedResourceStore();
        }
    });

    removeManagedResourceStoreButton.addClickListener(new ClickListener() {
        public void onClick(Widget sender) {
            try {
                LocalServer server = Factory.getInstance().createLocalServer();
                ManagedResourceStore store = Offline.getManagedResourceStore();
                server.removeManagedStore(store.getName());
                statusLabel.setText("Removed ManagedResourceStore.  Press Refresh to see Online version.");
                createManagedResourceStoreButton.setEnabled(false);
                removeManagedResourceStoreButton.setEnabled(false);
            } catch (GearsException e) {
                statusLabel.setText(e.getMessage());
            }
        }
    });

    hpanel.add(statusLabel);
}

From source file:com.google.gwt.gears.sample.managedresourcestoredemo.client.ManagedResourceStoreDemo.java

License:Apache License

public void onModuleLoad() {
    HorizontalPanel hpanel = new HorizontalPanel();
    hpanel.setSpacing(10);/*from  w  w w  .j ava  2s  .  c om*/
    RootPanel.get("demo").add(hpanel);

    hpanel.add(createManagedResourceStoreButton);

    // See if we're already running from a ManagedResourceStore
    try {
        LocalServer server = Factory.getInstance().createLocalServer();

        // This check to see if the host page can be served locally
        if (server.canServeLocally(Window.Location.getPath())) {
            createManagedResourceStoreButton.setText("Refresh Manifest");

            // Give the user an opportunity to delete the MRS
            hpanel.add(removeManagedResourceStoreButton);
        }
    } catch (GearsException e) {
        // Gears probably isn't available (e.g. hosted mode)
    }

    createManagedResourceStoreButton.addClickHandler(new ClickHandler() {
        public void onClick(ClickEvent event) {
            statusLabel.setText("Starting update");
            createManagedResourceStore();
        }
    });

    removeManagedResourceStoreButton.addClickHandler(new ClickHandler() {
        public void onClick(ClickEvent event) {
            try {
                LocalServer server = Factory.getInstance().createLocalServer();
                ManagedResourceStore store = Offline.getManagedResourceStore();
                server.removeManagedStore(store.getName());
                statusLabel.setText("Removed ManagedResourceStore.  Press Refresh to see Online version.");
                createManagedResourceStoreButton.setEnabled(false);
                removeManagedResourceStoreButton.setEnabled(false);
            } catch (GearsException e) {
                statusLabel.setText(e.getMessage());
            }
        }
    });

    hpanel.add(statusLabel);
}

From source file:com.google.gwt.gears.sample.resourcestore.client.ResourceStoreDemo.java

License:Apache License

/**
 * This is the entry point method.//from  www  .j  a  v  a 2 s.  c om
 */
public void onModuleLoad() {
    captureButton.addClickListener(new ClickListener() {
        public void onClick(Widget sender) {
            captureUrls();
        }
    });

    createStoreButton.addClickListener(new ClickListener() {
        public void onClick(Widget sender) {
            createResourceStore();
        }
    });

    removeStoreButton.addClickListener(new ClickListener() {
        public void onClick(Widget sender) {
            removeStore();
        }
    });

    uncaptureButton.addClickListener(new ClickListener() {
        public void onClick(Widget sender) {
            removeURLs();
        }
    });

    buttonPanel.add(createStoreButton);
    buttonPanel.add(captureButton);
    buttonPanel.add(uncaptureButton);
    buttonPanel.add(removeStoreButton);

    setButtons(true, false, false, false);

    VerticalPanel outerPanel = new VerticalPanel();
    outerPanel.add(buttonPanel);
    outerPanel.add(statusLabel);
    RootPanel.get("demo").add(outerPanel);

    localServer = Factory.getInstance().createLocalServer();
}

From source file:com.google.gwt.gears.sample.resourcestoredemo.client.ResourceStoreDemo.java

License:Apache License

/**
 * This is the entry point method.//from w  w w. j  a v  a2  s  .  co  m
 */
public void onModuleLoad() {
    captureButton.addClickHandler(new ClickHandler() {
        public void onClick(ClickEvent event) {
            captureUrls();
        }
    });

    createStoreButton.addClickHandler(new ClickHandler() {
        public void onClick(ClickEvent event) {
            createResourceStore();
        }
    });

    removeStoreButton.addClickHandler(new ClickHandler() {
        public void onClick(ClickEvent event) {
            removeStore();
        }
    });

    uncaptureButton.addClickHandler(new ClickHandler() {
        public void onClick(ClickEvent event) {
            removeURLs();
        }
    });

    buttonPanel.add(createStoreButton);
    buttonPanel.add(captureButton);
    buttonPanel.add(uncaptureButton);
    buttonPanel.add(removeStoreButton);

    setButtons(true, false, false, false);

    VerticalPanel outerPanel = new VerticalPanel();
    outerPanel.add(buttonPanel);
    outerPanel.add(statusLabel);
    RootPanel.get("demo").add(outerPanel);

    localServer = Factory.getInstance().createLocalServer();
}

From source file:com.google.gwt.gears.sample.workerpool.client.WorkerPoolDemo.java

License:Apache License

/**
 * Creates a worker if necessary, and sends it a message to start computing Pi
 * to the number of digits requested. The method returns immediately after
 * sending the message. Meanwhile, the computation starts to run in the worker
 * when it receives the message./*from   w  ww.j  a  v a 2  s  .  co m*/
 * 
 * @param numDigits the number of digits of Pi to compute.
 */
private void doAsyncCalculation(int numDigits) {

    if (workerPool == null) {
        workerPool = Factory.getInstance().createWorkerPool();
        primeWorkerId = workerPool.createWorkerFromUrl("pi_spigot_worker.js");
        workerPool.setMessageHandler(this);
    }
    workerPool.sendMessage("START " + numDigits, primeWorkerId);
}

From source file:de.lilawelt.zmachine.client.offline.Downloader.java

License:Open Source License

private void doLoad(String url) {
    LocalServer server = Factory.getInstance().createLocalServer();

    addStatusLine("Starting download...");
    ResourceStoreUrlCaptureHandler callback = new ResourceStoreUrlCaptureHandler() {

        public void onCapture(ResourceStoreUrlCaptureEvent event) {
            if (event.isSuccess()) {
                addStatusLine("Download finished.");
            } else {
                addStatusLine("Download failed.");
            }//from ww  w  .  java2 s.co  m

        }
    };

    final ResourceStore resource = server.createStore("games");

    resource.capture(callback, url);

}

From source file:de.lilawelt.zmachine.client.offline.OfflineMenuImplReal.java

License:Open Source License

@Override
public void initialize() {
    p.add(statusLabel, DockPanel.CENTER);

    f = Factory.getInstance();
    if (f == null) {
        statusLabel.setText("May not access gears");
        return;//  w w  w  . j a v a2s . c  o m
    }

    if ((!f.hasPermission()) && (!f.getPermission())) {
        statusLabel.setText("May not access gears");
        return;
    }

    // Draw a different interface if the application can be served offline.
    try {
        LocalServer server = Factory.getInstance().createLocalServer();
        // This check to see if the host page can be served locally
        if (server.canServeLocally("/zmachine/hosted.html")) {
            createManagedResourceStoreOffline();
            createManagedResourceStore();
            showGames();
        } else {
            createManagedResourceStoreOffline();
            createManagedResourceStore();
        }
    } catch (GearsException ex) {
        statusLabel.setText("Fatal error: " + ex.getMessage());
        return;
    }

}