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GWT Bibliothek fuer Mobile Plattformen der SWM
/*
* Copyright 2012 SWM Services GmbH.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package de.swm.commons.mobile.client.widgets.experimental;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.SimplePanel;
import com.google.gwt.user.client.ui.Widget;
import de.swm.commons.mobile.client.SWMMobile;
import de.swm.commons.mobile.client.event.FastClickHelper;
import de.swm.commons.mobile.client.widgets.*;
import de.swm.commons.mobile.client.widgets.itf.IHeaderPanel;
/**
* Header-Panel which is very fast on Click events because an touch event will be forwarded as click event.
*/
public class FastHeaderPanel extends SWMMobileWidgetBase implements IHeaderPanel {
private static String next_caption = SWMMobile.getI18N().headerPanelNextButton();
private static String back_caption = SWMMobile.getI18N().headerPanelBackButton();
FastClickHelper.FastClickHandler myLeftButtonClickHandler;
FastClickHelper.FastClickHandler myRightButtonClickHandler;
/**
* Default constructor.
*/
public FastHeaderPanel() {
FlowPanel container = new FlowPanel();
final SimplePanel leftButtonContainer = new SimplePanel();
container.add(leftButtonContainer); // left button placeholder
container.add(new FlowPanel()); // contents
final SimplePanel rightButtonContainer = new SimplePanel();
container.add(rightButtonContainer); // right button placeholder
initWidget(container);
setStyleName(SWMMobile.getTheme().getMGWTCssBundle().getHeaderCss().headerPanel());
}
/**
* Sets the widget displayed on the left side.
*
* @param w widget to be displayed
*/
public void setLeftWidget(Widget w) {
SimplePanel leftPanel = ((SimplePanel) ((FlowPanel) getWidget()).getWidget(0));
leftPanel.setWidget(w);
}
/**
* Sets the widget displayed on the right side.
*
* @param w widget to be displayed
*/
public void setRightWidget(Widget w) {
SimplePanel rightPanel = ((SimplePanel) ((FlowPanel) getWidget()).getWidget(2));
rightPanel.setWidget(w);
}
/**
* {@inheritDoc}
*/
public void add(Widget w) {
FlowPanel contents = ((FlowPanel) ((FlowPanel) getWidget()).getWidget(1));
contents.add(w);
}
/**
* {@inheritDoc}
*/
public void setCaption(String caption) {
FlowPanel contents = ((FlowPanel) ((FlowPanel) getWidget()).getWidget(1));
contents.clear();
contents.add(new HTML(caption));
}
/**
* {@inheritDoc}
*/
public String getCaption() {
FlowPanel contents = ((FlowPanel) ((FlowPanel) getWidget()).getWidget(1));
if (contents.getWidgetCount() > 0) {
HTML w = (HTML) contents.getWidget(0);
return w.getHTML();
}
return "";
}
/**
* Will display the back button.
*
* @param hasButton true to display
*/
public void setHasBackButton(boolean hasButton) {
if (hasButton) {
setLeftButton(SWMMobile.getI18N().headerPanelBackButton());
}
}
/**
* Will display the next button.
*
* @param hasButton true to display
*/
public void setHasNextButton(boolean hasButton) {
if (hasButton) {
setLeftButton(SWMMobile.getI18N().headerPanelNextButton());
}
}
/**
* {@inheritDoc}
*/
public void setLeftButton(String buttonName) {
SimplePanel leftButton = ((SimplePanel) ((FlowPanel) getWidget()).getWidget(0));
FastClickHelper.FastClickHandler clickHandler = new FastClickHelper.FastClickHandler() {
@Override
public void onFastClick(FastClickHelper.FastClickEvent event) {
onLeftButtonClick(event);
}
};
if (back_caption.equalsIgnoreCase(buttonName)) {
leftButton.setWidget(new BackButton(buttonName, clickHandler));
} else {
leftButton.setWidget(new Button(buttonName, clickHandler));
}
}
/**
* {@inheritDoc}
*/
public void setRightButton(String buttonName) {
SimplePanel rightButton = ((SimplePanel) ((FlowPanel) getWidget()).getWidget(2));
FastClickHelper.FastClickHandler clickHandler = new FastClickHelper.FastClickHandler() {
@Override
public void onFastClick(FastClickHelper.FastClickEvent event) {
onRightButtonClick(event);
}
};
if (buttonName.equalsIgnoreCase(next_caption)) {
rightButton.setWidget(new NextButton(buttonName, clickHandler));
} else {
rightButton.setWidget(new Button(buttonName, clickHandler));
}
}
/**
* Will set a pre-constructed button as right button.
*
* @param button the preconstructed button.
*/
public void setRightButton(Button button) {
SimplePanel rightButton = ((SimplePanel) ((FlowPanel) getWidget()).getWidget(2));
rightButton.setWidget(button);
}
/**
* {@inheritDoc}
*/
public Button getLeftButton() {
SimplePanel leftButton = ((SimplePanel) ((FlowPanel) getWidget()).getWidget(0));
return (Button) leftButton.getWidget();
}
/**
* {@inheritDoc}
*/
public Button getRightButton() {
SimplePanel rightButton = ((SimplePanel) ((FlowPanel) getWidget()).getWidget(2));
return (Button) rightButton.getWidget();
}
/**
* When the left button was clicked
*
* @param event the click event
*/
public void onLeftButtonClick(FastClickHelper.FastClickEvent event) {
if (myLeftButtonClickHandler != null) {
myLeftButtonClickHandler.onFastClick(event);
}
}
/**
* When the right button was clicked
*
* @param event the click event
*/
void onRightButtonClick(FastClickHelper.FastClickEvent event) {
if (myRightButtonClickHandler != null) {
myRightButtonClickHandler.onFastClick(event);
}
}
/**
* {@inheritDoc}
*/
public void setLeftButtonClickHandler(FastClickHelper.FastClickHandler handler) {
myLeftButtonClickHandler = handler;
}
/**
* {@inheritDoc}
*/
public void setRightButtonClickHandler(FastClickHelper.FastClickHandler handler) {
myRightButtonClickHandler = handler;
}
@Override
public void setLeftButtonClickHandler(ClickHandler handler) {
setLeftButtonClickHandler(FastClickHelper.wrapAsFastClickHandler(handler));
}
@Override
public void setRightButtonClickHandler(ClickHandler handler) {
setRightButtonClickHandler(FastClickHelper.wrapAsFastClickHandler(handler));
}
/**
* Sets the default text literals for next and back buttons. All buttons with this name will be rendered as back or
* next buttons. This method should be called on app start.
*
* @param backCaptionText .
* @param nextCaptionText .
*/
public static void internationalize(String backCaptionText, String nextCaptionText) {
back_caption = backCaptionText;
next_caption = nextCaptionText;
}
}