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

/**
 * This method effectively pops the form navigation stack and goes back
 * to the previous form if back navigation is enabled and there is
 * a previous form.
 *
 * @param sourceComponent the component that triggered the back command which effectively
 * allows us to find the EmbeddedContainer for a case of container navigation. Null
 * can be used if not applicable.
 */
public void back(Component sourceComponent) {
    Vector formNavigationStack = getFormNavigationStackForComponent(sourceComponent);
    if(formNavigationStack != null && formNavigationStack.size() > 0) {
        Hashtable h = (Hashtable)formNavigationStack.elementAt(formNavigationStack.size() - 1);
        if(h.containsKey(FORM_STATE_KEY_CONTAINER)) {
            Form currentForm = Display.getInstance().getCurrent();
            if(currentForm != null) {
                exitForm(currentForm);
            }
        }
        String formName = (String)h.get(FORM_STATE_KEY_NAME);
        if(!h.containsKey(FORM_STATE_KEY_CONTAINER)) {
            Form f = (Form)createContainer(fetchResourceFile(), formName);
            initBackForm(f);
            onBackNavigation();
            beforeShow(f);
            f.showBack();
            postShowImpl(f);
        } else {
            showContainerImpl(formName, null, sourceComponent, true);
        }
    }
}
 

public UserForm(String name, EncodedImage placeHolder, String imageURL) {
    this.name = name;
    this.imageURL = imageURL;
    setTitle("Welcome!");
    setLayout(new BorderLayout());
    
    Label icon = new Label(placeHolder);
    icon.setUIID("Picture");
    if(imageURL != null){
        icon.setIcon(URLImage.createToStorage(placeHolder, name, imageURL, null));
    }
    addComponent(BorderLayout.CENTER, icon);
    Label nameLbl = new Label(name);
    nameLbl.setUIID("Name");
    addComponent(BorderLayout.SOUTH, nameLbl);
    final Form current = Display.getInstance().getCurrent();
    Command back = new Command("Back"){

        @Override
        public void actionPerformed(ActionEvent evt) {
            current.showBack();;
        }

    };
    addCommand(back);
    setBackCommand(back);
    
}
 

/**
 * Runs all of the tests in the test running.
 */
public void runTests() {
    Form f = getComponentForm();
    resultsPane.removeAll();
    resultsPane.revalidate();
    for (final AbstractTest test : tests) {
        final Button statusLabel = new Button(test+": Running...");
        if (f != CN.getCurrentForm()) {
            
            f.showBack();
        }
        $(statusLabel).selectAllStyles().setBgColor(0xffff00).setBgTransparency(0xff);
        resultsPane.add(statusLabel);
        resultsPane.revalidate();
        if (test.shouldExecuteOnEDT()) {
            runTest(test, statusLabel);
        } else {
            CN.invokeAndBlock(new Runnable() {
                public void run() {
                    runTest(test, statusLabel);
                }
            });
        }
        resultsPane.revalidate();
    }
    if (f != CN.getCurrentForm()) {
        f.showBack();
    }
}
 

public UserForm(String name, EncodedImage placeHolder, String imageURL) {
    this.name = name;
    this.imageURL = imageURL;
    setTitle("Welcome!");
    setLayout(new BorderLayout());
    
    Label icon = new Label(placeHolder);
    icon.setUIID("Picture");
    if(imageURL != null){
        icon.setIcon(URLImage.createToStorage(placeHolder, name, imageURL, null));
    }
    addComponent(BorderLayout.CENTER, icon);
    Label nameLbl = new Label(name);
    nameLbl.setUIID("Name");
    addComponent(BorderLayout.SOUTH, nameLbl);
    final Form current = Display.getInstance().getCurrent();
    Command back = new Command("Back"){

        @Override
        public void actionPerformed(ActionEvent evt) {
            current.showBack();;
        }

    };
    addCommand(back);
    setBackCommand(back);
    
}
 

private void showForm(Form f, Command sourceCommand, Component sourceComponent) {
    Form currentForm = Display.getInstance().getCurrent();
    if(currentForm != null && currentForm instanceof Dialog) {
        ((Dialog)Display.getInstance().getCurrent()).dispose();
        currentForm = Display.getInstance().getCurrent();
    }
    Vector formNavigationStack = baseFormNavigationStack;
    if(sourceCommand != null && currentForm != null && currentForm.getBackCommand() == sourceCommand) {
        if(currentForm != null) {
            exitForm(currentForm);
        }
        if(formNavigationStack != null && formNavigationStack.size() > 0) {
            String name = f.getName();
            if(name != null && name.equals(homeForm)) {
                if(formNavigationStack.size() > 0) {
                    setFormState(f, (Hashtable)formNavigationStack.elementAt(formNavigationStack.size() - 1));
                }
                formNavigationStack.clear();
            } else {
                initBackForm(f);
            }
        }
        onBackNavigation();
        beforeShow(f, sourceCommand);
        f.showBack();
        postShowImpl(f);
    } else {
        if(currentForm != null) {
            exitForm(currentForm);
        }
        if(formNavigationStack != null && !(f instanceof Dialog) && !f.getName().equals(homeForm)) {
            if(currentForm != null) {
                String nextForm = (String)f.getClientProperty("%next_form%");
                
                // we are in the sidemenu view we should really be using the parent form
                SideMenuBar b = (SideMenuBar)currentForm.getClientProperty("cn1$sideMenuParent");
                if(b != null) {
                    currentForm = b.getParentForm();
                }
                
                // don't add back commands to transitional forms
                if(nextForm == null) {
                    String commandAction = currentForm.getName();
                    if(allowBackTo(commandAction) && f.getBackCommand() == null) {
                        Command backCommand;
                        if(isSameBackDestination(currentForm, f)) {
                            backCommand = currentForm.getBackCommand();
                        } else {
                            backCommand = createCommandImpl(getBackCommandText(currentForm.getTitle()), null,
                                BACK_COMMAND_ID, commandAction, true, "");
                            backCommand.putClientProperty(COMMAND_ARGUMENTS, "");
                            backCommand.putClientProperty(COMMAND_ACTION, commandAction);
                        }
                        if(backCommand != null) {
                            setBackCommand(f, backCommand);
                        }

                        // trigger listener creation if this is the only command in the form
                        getFormListenerInstance(f, null);
                        formNavigationStack.addElement(getFormState(currentForm));
                    }
                }
            }
        }
        if(f instanceof Dialog) {
            beforeShow(f, sourceCommand);
            if(sourceComponent != null) {
                // we are cheating with the post show here since we are using a modal
                // dialog to prevent the "double clicking button" problem by using
                // a modal dialog
                sourceComponent.setEnabled(false);
                postShowImpl(f);
                f.show();
                sourceComponent.setEnabled(true);
                exitForm(f);
            } else {
                ((Dialog)f).showModeless();
                postShowImpl(f);
            }
        } else {
            beforeShow(f, sourceCommand);
            f.show();
            postShowImpl(f);
        }
    }
}
 

/**
 * 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));
}