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/*
* Vaadin Framework 7
*
* Copyright (C) 2000-2024 Vaadin Ltd
*
* This program is available under Vaadin Commercial License and Service Terms.
*
* See for the full
* license.
*/
package com.vaadin.ui;
import java.io.Serializable;
import java.lang.reflect.Method;
import java.util.Collection;
import org.jsoup.nodes.Attributes;
import org.jsoup.nodes.Element;
import com.vaadin.shared.ui.colorpicker.Color;
import com.vaadin.shared.ui.colorpicker.ColorPickerServerRpc;
import com.vaadin.shared.ui.colorpicker.ColorPickerState;
import com.vaadin.ui.Window.CloseEvent;
import com.vaadin.ui.Window.CloseListener;
import com.vaadin.ui.components.colorpicker.ColorChangeEvent;
import com.vaadin.ui.components.colorpicker.ColorChangeListener;
import com.vaadin.ui.components.colorpicker.ColorPickerPopup;
import com.vaadin.ui.components.colorpicker.ColorSelector;
import com.vaadin.ui.declarative.DesignAttributeHandler;
import com.vaadin.ui.declarative.DesignContext;
/**
* An abstract class that defines default implementation for a color picker
* component.
*
* @since 7.0.0
*/
public abstract class AbstractColorPicker extends AbstractComponent
implements CloseListener, ColorSelector {
private static final Method COLOR_CHANGE_METHOD;
static {
try {
COLOR_CHANGE_METHOD = ColorChangeListener.class.getDeclaredMethod(
"colorChanged", new Class[] { ColorChangeEvent.class });
} catch (final java.lang.NoSuchMethodException e) {
// This should never happen
throw new java.lang.RuntimeException(
"Internal error finding methods in ColorPicker");
}
}
/**
* Interface for converting 2d-coordinates to a Color
*/
public interface Coordinates2Color extends Serializable {
/**
* Calculate color from coordinates
*
* @param x
* the x-coordinate
* @param y
* the y-coordinate
*
* @return the color
*/
public Color calculate(int x, int y);
/**
* Calculate coordinates from color
*
* @param c
* the c
*
* @return the integer array with the coordinates
*/
public int[] calculate(Color c);
}
public enum PopupStyle {
POPUP_NORMAL("normal"), POPUP_SIMPLE("simple");
private String style;
PopupStyle(String styleName) {
style = styleName;
}
@Override
public String toString() {
return style;
}
}
private ColorPickerServerRpc rpc = new ColorPickerServerRpc() {
@Override
public void openPopup(boolean open) {
showPopup(open);
}
};
protected static final String STYLENAME_DEFAULT = "v-colorpicker";
protected static final String STYLENAME_BUTTON = "v-button";
protected static final String STYLENAME_AREA = "v-colorpicker-area";
protected PopupStyle popupStyle = PopupStyle.POPUP_NORMAL;
/** The popup window. */
private ColorPickerPopup window;
/** The color. */
protected Color color;
/** The UI. */
private UI parent;
protected String popupCaption = null;
private int positionX = 0;
private int positionY = 0;
protected boolean rgbVisible = true;
protected boolean hsvVisible = true;
protected boolean swatchesVisible = true;
protected boolean historyVisible = true;
protected boolean textfieldVisible = true;
/**
* Instantiates a new color picker.
*/
public AbstractColorPicker() {
this("Colors", Color.WHITE);
}
/**
* Instantiates a new color picker.
*
* @param popupCaption
* the caption of the popup window
*/
public AbstractColorPicker(String popupCaption) {
this(popupCaption, Color.WHITE);
}
/**
* Instantiates a new color picker.
*
* @param popupCaption
* the caption of the popup window
* @param initialColor
* the initial color
*/
public AbstractColorPicker(String popupCaption, Color initialColor) {
super();
registerRpc(rpc);
setColor(initialColor);
this.popupCaption = popupCaption;
setDefaultStyles();
setCaption("");
}
@Override
public void setColor(Color color) {
this.color = color;
if (window != null) {
window.setColor(color);
}
getState().color = color.getCSS();
}
@Override
public Color getColor() {
return color;
}
/**
* Set true if the component should show a default caption (css-code for the
* currently selected color, e.g. #ffffff) when no other caption is
* available.
*
* @param enabled
*/
public void setDefaultCaptionEnabled(boolean enabled) {
getState().showDefaultCaption = enabled;
}
/**
* Returns true if the component shows the default caption (css-code for the
* currently selected color, e.g. #ffffff) if no other caption is available.
*/
public boolean isDefaultCaptionEnabled() {
return getState(false).showDefaultCaption;
}
/**
* Sets the position of the popup window
*
* @param x
* the x-coordinate
* @param y
* the y-coordinate
*/
public void setPosition(int x, int y) {
positionX = x;
positionY = y;
if (window != null) {
window.setPositionX(x);
window.setPositionY(y);
}
}
@Override
public void addColorChangeListener(ColorChangeListener listener) {
addListener(ColorChangeEvent.class, listener, COLOR_CHANGE_METHOD);
}
@Override
public void removeColorChangeListener(ColorChangeListener listener) {
removeListener(ColorChangeEvent.class, listener);
}
@Override
public void windowClose(CloseEvent e) {
if (e.getWindow() == window) {
getState().popupVisible = false;
}
}
/**
* Fired when a color change event occurs
*
* @param event
* The color change event
*/
protected void colorChanged(ColorChangeEvent event) {
setColor(event.getColor());
fireColorChanged();
}
/**
* Notifies the listeners that the selected color has changed
*/
public void fireColorChanged() {
fireEvent(new ColorChangeEvent(this, color));
}
/**
* The style for the popup window
*
* @param style
* The style
*/
public void setPopupStyle(PopupStyle style) {
popupStyle = style;
switch (style) {
case POPUP_NORMAL: {
setRGBVisibility(true);
setHSVVisibility(true);
setSwatchesVisibility(true);
setHistoryVisibility(true);
setTextfieldVisibility(true);
break;
}
case POPUP_SIMPLE: {
setRGBVisibility(false);
setHSVVisibility(false);
setSwatchesVisibility(true);
setHistoryVisibility(false);
setTextfieldVisibility(false);
break;
}
}
}
/**
* Gets the style for the popup window
*
* @since 7.5.0
* @return popup window style
*/
public PopupStyle getPopupStyle() {
return popupStyle;
}
/**
* Set the visibility of the RGB Tab
*
* @param visible
* The visibility
*/
public void setRGBVisibility(boolean visible) {
if (!visible && !hsvVisible && !swatchesVisible) {
throw new IllegalArgumentException("Cannot hide all tabs.");
}
rgbVisible = visible;
if (window != null) {
window.setRGBTabVisible(visible);
}
}
/**
* Gets the visibility of the RGB Tab
*
* @since 7.5.0
* @return visibility of the RGB tab
*/
public boolean getRGBVisibility() {
return rgbVisible;
}
/**
* Set the visibility of the HSV Tab
*
* @param visible
* The visibility
*/
public void setHSVVisibility(boolean visible) {
if (!visible && !rgbVisible && !swatchesVisible) {
throw new IllegalArgumentException("Cannot hide all tabs.");
}
hsvVisible = visible;
if (window != null) {
window.setHSVTabVisible(visible);
}
}
/**
* Gets the visibility of the HSV Tab
*
* @since 7.5.0
* @return visibility of the HSV tab
*/
public boolean getHSVVisibility() {
return hsvVisible;
}
/**
* Set the visibility of the Swatches Tab
*
* @param visible
* The visibility
*/
public void setSwatchesVisibility(boolean visible) {
if (!visible && !hsvVisible && !rgbVisible) {
throw new IllegalArgumentException("Cannot hide all tabs.");
}
swatchesVisible = visible;
if (window != null) {
window.setSwatchesTabVisible(visible);
}
}
/**
* Gets the visibility of the Swatches Tab
*
* @since 7.5.0
* @return visibility of the swatches tab
*/
public boolean getSwatchesVisibility() {
return swatchesVisible;
}
/**
* Sets the visibility of the Color History
*
* @param visible
* The visibility
*/
public void setHistoryVisibility(boolean visible) {
historyVisible = visible;
if (window != null) {
window.setHistoryVisible(visible);
}
}
/**
* Gets the visibility of the Color History
*
* @since 7.5.0
* @return visibility of color history
*/
public boolean getHistoryVisibility() {
return historyVisible;
}
/**
* Sets the visibility of the CSS color code text field
*
* @param visible
* The visibility
*/
public void setTextfieldVisibility(boolean visible) {
textfieldVisible = visible;
if (window != null) {
window.setPreviewVisible(visible);
}
}
/**
* Gets the visibility of CSS color code text field
*
* @since 7.5.0
* @return visibility of css color code text field
*/
public boolean getTextfieldVisibility() {
return textfieldVisible;
}
@Override
protected ColorPickerState getState() {
return (ColorPickerState) super.getState();
}
@Override
protected ColorPickerState getState(boolean markAsDirty) {
return (ColorPickerState) super.getState(markAsDirty);
}
/**
* Sets the default styles of the component
*
*/
abstract protected void setDefaultStyles();
/**
* Shows a popup-window for color selection.
*/
public void showPopup() {
showPopup(true);
}
/**
* Hides a popup-window for color selection.
*/
public void hidePopup() {
showPopup(false);
}
/**
* Shows or hides popup-window depending on the given parameter. If there is
* no such window yet, one is created.
*
* @param open
*/
protected void showPopup(boolean open) {
if (open && !isReadOnly()) {
if (parent == null) {
parent = getUI();
}
if (window == null) {
// Create the popup
window = new ColorPickerPopup(color);
window.setCaption(popupCaption);
window.setRGBTabVisible(rgbVisible);
window.setHSVTabVisible(hsvVisible);
window.setSwatchesTabVisible(swatchesVisible);
window.setHistoryVisible(historyVisible);
window.setPreviewVisible(textfieldVisible);
window.setImmediate(true);
window.addCloseListener(this);
window.addColorChangeListener(new ColorChangeListener() {
@Override
public void colorChanged(ColorChangeEvent event) {
AbstractColorPicker.this.colorChanged(event);
}
});
window.getHistory().setColor(color);
parent.addWindow(window);
window.setVisible(true);
window.setPositionX(positionX);
window.setPositionY(positionY);
} else if (!parent.equals(window.getParent())) {
window.setRGBTabVisible(rgbVisible);
window.setHSVTabVisible(hsvVisible);
window.setSwatchesTabVisible(swatchesVisible);
window.setHistoryVisible(historyVisible);
window.setPreviewVisible(textfieldVisible);
window.setColor(color);
window.getHistory().setColor(color);
window.setVisible(true);
parent.addWindow(window);
}
} else if (window != null) {
window.setVisible(false);
parent.removeWindow(window);
}
getState().popupVisible = open;
}
/**
* Set whether the caption text is rendered as HTML or not. You might need
* to re-theme component to allow higher content than the original text
* style.
*
* If set to true, the captions are passed to the browser as html and the
* developer is responsible for ensuring no harmful html is used. If set to
* false, the content is passed to the browser as plain text.
*
* @param htmlContentAllowed
* true if caption is rendered as HTML,
* false otherwise
* @deprecated as of , use {@link #setCaptionAsHtml(boolean)} instead
*/
@Deprecated
public void setHtmlContentAllowed(boolean htmlContentAllowed) {
setCaptionAsHtml(htmlContentAllowed);
}
/**
* Return HTML rendering setting
*
* @return true if the caption text is to be rendered as HTML,
* false otherwise
* @deprecated as of , use {@link #isCaptionAsHtml()} instead
*/
@Deprecated
public boolean isHtmlContentAllowed() {
return isCaptionAsHtml();
}
@Override
public void readDesign(Element design, DesignContext designContext) {
super.readDesign(design, designContext);
Attributes attributes = design.attributes();
if (design.hasAttr("color")) {
// Ignore the # character
String hexColor = DesignAttributeHandler
.readAttribute("color", attributes, String.class)
.substring(1);
setColor(new Color(Integer.parseInt(hexColor, 16)));
}
if (design.hasAttr("popup-style")) {
setPopupStyle(PopupStyle.valueOf(
"POPUP_" + attributes.get("popup-style").toUpperCase()));
}
if (design.hasAttr("position")) {
String[] position = attributes.get("position").split(",");
setPosition(Integer.parseInt(position[0]),
Integer.parseInt(position[1]));
}
}
@Override
public void writeDesign(Element design, DesignContext designContext) {
super.writeDesign(design, designContext);
Attributes attribute = design.attributes();
DesignAttributeHandler.writeAttribute("color", attribute,
color.getCSS(), Color.WHITE.getCSS(), String.class);
DesignAttributeHandler.writeAttribute("popup-style", attribute,
popupStyle == PopupStyle.POPUP_NORMAL ? "normal" : "simple",
"normal", String.class);
DesignAttributeHandler.writeAttribute("position", attribute,
positionX + "," + positionY, "0,0", String.class);
}
@Override
protected Collection getCustomAttributes() {
Collection result = super.getCustomAttributes();
result.add("color");
result.add("position");
result.add("popup-style");
return result;
}
}
