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/*
@VaadinApache2LicenseForJavaFiles@
*/
package com.vaadin.terminal.gwt.client.ui.panel;
import com.google.gwt.dom.client.DivElement;
import com.google.gwt.dom.client.Document;
import com.google.gwt.event.dom.client.TouchStartEvent;
import com.google.gwt.event.dom.client.TouchStartHandler;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Element;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.SimplePanel;
import com.vaadin.terminal.gwt.client.ApplicationConnection;
import com.vaadin.terminal.gwt.client.Focusable;
import com.vaadin.terminal.gwt.client.ui.Icon;
import com.vaadin.terminal.gwt.client.ui.ShortcutActionHandler;
import com.vaadin.terminal.gwt.client.ui.ShortcutActionHandler.ShortcutActionHandlerOwner;
import com.vaadin.terminal.gwt.client.ui.TouchScrollDelegate;
public class VPanel extends SimplePanel implements ShortcutActionHandlerOwner,
Focusable {
public static final String CLASSNAME = "v-panel";
ApplicationConnection client;
String id;
final Element captionNode = DOM.createDiv();
private final Element captionText = DOM.createSpan();
private Icon icon;
final Element bottomDecoration = DOM.createDiv();
final Element contentNode = DOM.createDiv();
private Element errorIndicatorElement;
ShortcutActionHandler shortcutHandler;
int scrollTop;
int scrollLeft;
private TouchScrollDelegate touchScrollDelegate;
public VPanel() {
super();
DivElement captionWrap = Document.get().createDivElement();
captionWrap.appendChild(captionNode);
captionNode.appendChild(captionText);
captionWrap.setClassName(CLASSNAME + "-captionwrap");
captionNode.setClassName(CLASSNAME + "-caption");
contentNode.setClassName(CLASSNAME + "-content");
bottomDecoration.setClassName(CLASSNAME + "-deco");
getElement().appendChild(captionWrap);
/*
* Make contentNode focusable only by using the setFocus() method. This
* behaviour can be changed by invoking setTabIndex() in the serverside
* implementation
*/
contentNode.setTabIndex(-1);
getElement().appendChild(contentNode);
getElement().appendChild(bottomDecoration);
setStyleName(CLASSNAME);
DOM.sinkEvents(getElement(), Event.ONKEYDOWN);
DOM.sinkEvents(contentNode, Event.ONSCROLL | Event.TOUCHEVENTS);
addHandler(new TouchStartHandler() {
public void onTouchStart(TouchStartEvent event) {
getTouchScrollDelegate().onTouchStart(event);
}
}, TouchStartEvent.getType());
}
/**
* Sets the keyboard focus on the Panel
*
* @param focus
* Should the panel have focus or not.
*/
public void setFocus(boolean focus) {
if (focus) {
getContainerElement().focus();
} else {
getContainerElement().blur();
}
}
/*
* (non-Javadoc)
*
* @see com.vaadin.terminal.gwt.client.Focusable#focus()
*/
public void focus() {
setFocus(true);
}
@Override
protected Element getContainerElement() {
return contentNode;
}
void setCaption(String text) {
DOM.setInnerHTML(captionText, text);
}
void setErrorIndicatorVisible(boolean showError) {
if (showError) {
if (errorIndicatorElement == null) {
errorIndicatorElement = DOM.createSpan();
DOM.setElementProperty(errorIndicatorElement, "className",
"v-errorindicator");
DOM.sinkEvents(errorIndicatorElement, Event.MOUSEEVENTS);
sinkEvents(Event.MOUSEEVENTS);
}
DOM.insertBefore(captionNode, errorIndicatorElement, captionText);
} else if (errorIndicatorElement != null) {
DOM.removeChild(captionNode, errorIndicatorElement);
errorIndicatorElement = null;
}
}
void setIconUri(String iconUri, ApplicationConnection client) {
if (iconUri == null) {
if (icon != null) {
DOM.removeChild(captionNode, icon.getElement());
icon = null;
}
} else {
if (icon == null) {
icon = new Icon(client);
DOM.insertChild(captionNode, icon.getElement(), 0);
}
icon.setUri(iconUri);
}
}
@Override
public void onBrowserEvent(Event event) {
super.onBrowserEvent(event);
final Element target = DOM.eventGetTarget(event);
final int type = DOM.eventGetType(event);
if (type == Event.ONKEYDOWN && shortcutHandler != null) {
shortcutHandler.handleKeyboardEvent(event);
return;
}
if (type == Event.ONSCROLL) {
int newscrollTop = DOM.getElementPropertyInt(contentNode,
"scrollTop");
int newscrollLeft = DOM.getElementPropertyInt(contentNode,
"scrollLeft");
if (client != null
&& (newscrollLeft != scrollLeft || newscrollTop != scrollTop)) {
scrollLeft = newscrollLeft;
scrollTop = newscrollTop;
client.updateVariable(id, "scrollTop", scrollTop, false);
client.updateVariable(id, "scrollLeft", scrollLeft, false);
}
} else if (captionNode.isOrHasChild(target)) {
if (client != null) {
client.handleTooltipEvent(event, this);
}
}
}
protected TouchScrollDelegate getTouchScrollDelegate() {
if (touchScrollDelegate == null) {
touchScrollDelegate = new TouchScrollDelegate(contentNode);
}
return touchScrollDelegate;
}
public ShortcutActionHandler getShortcutActionHandler() {
return shortcutHandler;
}
}
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