Java Code Examples for com.codename1.ui.Form#addCommand()

private void showMainForm() {
    final Form photos = new Form("Photos");
    photos.setLayout(new BorderLayout());
    GridLayout gr = new GridLayout(1, 1);
    final Container grid = new Container(gr);
    gr.setAutoFit(true);
    grid.setScrollableY(true);
    grid.addPullToRefresh(new Runnable() {
        public void run() {
            refreshGrid(grid);
        }
    });

    grid.addComponent(new InfiniteProgress());
    photos.addComponent(BorderLayout.CENTER, grid);

    photos.removeAllCommands();
    photos.setBackCommand(null);
    photos.addCommand(createPictureCommand(grid));

    photos.show();
    refreshGrid(grid);
}
 

/**
 * Places a form with the log as a TextArea on the screen, this method can
 * be attached to appear at a given time or using a fixed global key. Using
 * this method might cause a problem with further log output
 * @deprecated this method is an outdated method that's no longer supported
 */
public static void showLog() {
    try {
        String text = getLogContent();
        TextArea area = new TextArea(text, 5, 20);
        Form f = new Form("Log");
        f.setScrollable(false);
        final Form current = Display.getInstance().getCurrent();
        Command back = new Command("Back") {
            public void actionPerformed(ActionEvent ev) {
                current.show();
            }
        };
        f.addCommand(back);
        f.setBackCommand(back);
        f.setLayout(new BorderLayout());
        f.addComponent(BorderLayout.CENTER, area);
        f.show();
    } catch (Exception ex) {
        ex.printStackTrace();
    }
}
 

/**
 * Invoked internally to set the back command on the form, this method allows subclasses
 * to change the behavior of back command adding or disable it
 * @param f the form
 * @param backCommand the back command 
 */
protected void setBackCommand(Form f, Command backCommand) {
    if(f.getToolbar() != null) {
        f.getToolbar().setBackCommand(backCommand);
    } else {
        if(shouldAddBackCommandToMenu()) {
            f.addCommand(backCommand, f.getCommandCount());
        }
        f.setBackCommand(backCommand);
    }
}
 

/**
 * Useful tool to refresh the current state of a form shown using show form
 * without pushing another instance to the back stack
 */
public void reloadForm() {
    Form currentForm = Display.getInstance().getCurrent();
    Command backCommand = currentForm.getBackCommand(); 
    Form newForm = (Form)createContainer(fetchResourceFile(), currentForm.getName());
    newForm.setSourceCommand(currentForm.getSourceCommand());
    if (backCommand != null) {
        setBackCommand(newForm, backCommand);

        // trigger listener creation if this is the only command in the form
        getFormListenerInstance(newForm, null);
        
        for(int iter = 0 ; iter < currentForm.getCommandCount() ; iter++) {
            if(backCommand == currentForm.getCommand(iter)) {
                newForm.addCommand(backCommand, newForm.getCommandCount());
                break;
            }
        }
    }
    
    beforeShow(newForm);
    Transition tin = newForm.getTransitionInAnimator();
    Transition tout = newForm.getTransitionOutAnimator();
    currentForm.setTransitionInAnimator(CommonTransitions.createEmpty());
    currentForm.setTransitionOutAnimator(CommonTransitions.createEmpty());
    newForm.setTransitionInAnimator(CommonTransitions.createEmpty());
    newForm.setTransitionOutAnimator(CommonTransitions.createEmpty());
    newForm.layoutContainer();
    newForm.show();
    postShowImpl(newForm);
    newForm.setTransitionInAnimator(tin);
    newForm.setTransitionOutAnimator(tout);
}
 

/**
 * This method shows an authentication for login form
 *
 * @param al a listener that will receive at its source either a token for
 * the service or an exception in case of a failure
 * @return a component that should be displayed to the user in order to
 * perform the authentication
 */
public void showAuthentication(final ActionListener al) {
    
    if (useBrowserWindow) {
        final BrowserWindow win = new BrowserWindow(buildURL());
        win.setTitle("Login");
        win.addLoadListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                String url = (String)evt.getSource();
                if (url.startsWith(redirectURI)) {
                    win.close();
                    handleURL((String)evt.getSource(), null, al, null, null, null);
                }    
            }
        });

        win.show(); 
        return;
        
    }
    
    final Form old = Display.getInstance().getCurrent();
    InfiniteProgress inf = new InfiniteProgress();
    final Dialog progress = inf.showInifiniteBlocking();
    Form authenticationForm = new Form("Login");
    authenticationForm.setScrollable(false);
    if (old != null) {
        Command cancel = new Command("Cancel") {
            public void actionPerformed(ActionEvent ev) {
                if (Display.getInstance().getCurrent() == progress) {
                    progress.dispose();
                }
                old.showBack();
            }
        };
        if (authenticationForm.getToolbar() != null){
            authenticationForm.getToolbar().addCommandToLeftBar(cancel);
        } else {
            authenticationForm.addCommand(cancel);
        }
        authenticationForm.setBackCommand(cancel);
    }
    authenticationForm.setLayout(new BorderLayout());
    authenticationForm.addComponent(BorderLayout.CENTER, createLoginComponent(al, authenticationForm, old, progress));
}
 

/**
 * @deprecated this was a half baked idea that made it into the public API
 */
public static void bindTabletLandscapeMaster(final Form rootForm, Container parentContainer, Component landscapeUI, final Component portraitUI, final String commandTitle, Image commandIcon) {
    landscapeUI.setHideInPortrait(true);
    parentContainer.addComponent(BorderLayout.WEST, landscapeUI);

    final Command masterCommand = new Command(commandTitle, commandIcon) {
        public void actionPerformed(ActionEvent ev) {
            Dialog dlg = new Dialog();
            dlg.setLayout(new BorderLayout());
            dlg.setDialogUIID("Container");
            dlg.getContentPane().setUIID("Container");
            Container titleArea = new Container(new BorderLayout());
            dlg.addComponent(BorderLayout.NORTH, titleArea);
            titleArea.setUIID("TitleArea");
            Label title = new Label(commandTitle);
            titleArea.addComponent(BorderLayout.CENTER, title);
            title.setUIID("Title");
            Container body = new Container(new BorderLayout());
            body.setUIID("Form");
            body.addComponent(BorderLayout.CENTER, portraitUI);
            dlg.setTransitionInAnimator(CommonTransitions.createSlide(CommonTransitions.SLIDE_HORIZONTAL, false, 250));
            dlg.setTransitionOutAnimator(CommonTransitions.createSlide(CommonTransitions.SLIDE_HORIZONTAL, true, 250));
            dlg.addComponent(BorderLayout.CENTER, body);
            dlg.setDisposeWhenPointerOutOfBounds(true);
            dlg.showStetched(BorderLayout.WEST, true);
            dlg.removeComponent(portraitUI);
        }
    };
    if(Display.getInstance().isPortrait()) {
        if(rootForm.getCommandCount() > 0) {
            rootForm.addCommand(masterCommand, 1);
        } else {
            rootForm.addCommand(masterCommand);                
        }
    }
    rootForm.addOrientationListener(new ActionListener() {
        public void actionPerformed(ActionEvent evt) {
            if(portraitUI.getParent() != null) {
                Form f = Display.getInstance().getCurrent();
                if(f instanceof Dialog) {
                    ((Dialog)f).dispose();
                }
            }
            if(Display.getInstance().isPortrait()) {
                rootForm.addCommand(masterCommand, 1);
            } else {
                rootForm.removeCommand(masterCommand);
                rootForm.revalidate();
            }
        }
    });        
}