/*
* Copyright 2000-2014 Vaadin Ltd.
*
* 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 com.vaadin.client.ui;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.HasClickHandlers;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HasHTML;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.Widget;
/**
* Client side implementation for ColorPickerArea.
*
* @since 7.0.0
*/
public class VColorPickerArea extends Widget implements ClickHandler, HasHTML,
HasClickHandlers {
public static final String CLASSNAME = "v-colorpicker";
private String color = null;
private boolean isOpen;
private HTML caption;
private HTML area;
/**
* Initializes an area-style color picker widget.
*/
public VColorPickerArea() {
super();
setElement(DOM.createDiv());
setStyleName(CLASSNAME);
caption = new HTML();
caption.addStyleName("v-caption");
caption.setWidth("");
area = new HTML();
area.setStylePrimaryName(getStylePrimaryName() + "-area");
getElement().appendChild(caption.getElement());
getElement().appendChild(area.getElement());
addClickHandler(this);
}
/**
* Adds a click handler to the widget and sinks the click event.
*
* @param handler
* @return HandlerRegistration used to remove the handler
*/
@Override
public HandlerRegistration addClickHandler(ClickHandler handler) {
return addDomHandler(handler, ClickEvent.getType());
}
@Override
public void onClick(ClickEvent event) {
setOpen(!isOpen);
}
@Override
public void onBrowserEvent(Event event) {
int type = DOM.eventGetType(event);
switch (type) {
case Event.ONCLICK:
if (DOM.isOrHasChild(area.getElement(), DOM.eventGetTarget(event))) {
super.onBrowserEvent(event);
}
break;
default:
super.onBrowserEvent(event);
}
}
/**
* Mark the popup opened/closed.
*
* @param open
*/
public void setOpen(boolean open) {
isOpen = open;
}
/**
* Check the popup's marked state.
*
* @return true if the popup has been marked being open, false otherwise.
*/
public boolean isOpen() {
return isOpen;
}
/**
* Sets the caption's content to the given text.
*
* @param text
*
* @see Label#setText(String)
*/
@Override
public void setText(String text) {
caption.setText(text);
}
/**
* Gets the caption's contents as text.
*
* @return the caption's text
*/
@Override
public String getText() {
return caption.getText();
}
/**
* Sets the caption's content to the given HTML.
*
* @param html
*/
@Override
public void setHTML(String html) {
caption.setHTML(html);
}
/**
* Gets the caption's contents as HTML.
*
* @return the caption's HTML
*/
@Override
public String getHTML() {
return caption.getHTML();
}
/**
* Sets the color for the area.
*
* @param color
*/
public void setColor(String color) {
this.color = color;
}
/**
* Update the color area with the currently set color.
*/
public void refreshColor() {
if (color != null) {
// Set the color
area.getElement().getStyle().setProperty("background", color);
}
}
@Override
public void setStylePrimaryName(String style) {
super.setStylePrimaryName(style);
area.setStylePrimaryName(getStylePrimaryName() + "-area");
}
/**
* Sets the color area's height. This height does not include caption or
* decorations such as border, margin, and padding.
*/
@Override
public void setHeight(String height) {
area.setHeight(height);
}
/**
* Sets the color area's width. This width does not include caption or
* decorations such as border, margin, and padding.
*/
@Override
public void setWidth(String width) {
area.setWidth(width);
}
}