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/*
* This file is part of the Echo Web Application Framework (hereinafter "Echo").
* Copyright (C) 2002-2009 NextApp, Inc.
*
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*/
package nextapp.echo2.webcontainer.syncpeer;
import nextapp.echo2.app.Alignment;
import nextapp.echo2.app.Border;
import nextapp.echo2.app.CheckBox;
import nextapp.echo2.app.Color;
import nextapp.echo2.app.Component;
import nextapp.echo2.app.Extent;
import nextapp.echo2.app.FillImage;
import nextapp.echo2.app.Font;
import nextapp.echo2.app.ImageReference;
import nextapp.echo2.app.Insets;
import nextapp.echo2.app.RadioButton;
import nextapp.echo2.app.ResourceImageReference;
import nextapp.echo2.app.button.AbstractButton;
import nextapp.echo2.app.button.ButtonGroup;
import nextapp.echo2.app.button.ToggleButton;
import nextapp.echo2.app.update.ServerComponentUpdate;
import nextapp.echo2.webcontainer.ActionProcessor;
import nextapp.echo2.webcontainer.ContainerInstance;
import nextapp.echo2.webcontainer.DomUpdateSupport;
import nextapp.echo2.webcontainer.PropertyUpdateProcessor;
import nextapp.echo2.webcontainer.RenderContext;
import nextapp.echo2.webcontainer.ComponentSynchronizePeer;
import nextapp.echo2.webcontainer.image.ImageRenderSupport;
import nextapp.echo2.webcontainer.image.ImageTools;
import nextapp.echo2.webcontainer.propertyrender.AlignmentRender;
import nextapp.echo2.webcontainer.propertyrender.BorderRender;
import nextapp.echo2.webcontainer.propertyrender.ColorRender;
import nextapp.echo2.webcontainer.propertyrender.ExtentRender;
import nextapp.echo2.webcontainer.propertyrender.FillImageRender;
import nextapp.echo2.webcontainer.propertyrender.FontRender;
import nextapp.echo2.webcontainer.propertyrender.ImageReferenceRender;
import nextapp.echo2.webcontainer.propertyrender.InsetsRender;
import nextapp.echo2.webcontainer.propertyrender.LayoutDirectionRender;
import nextapp.echo2.webrender.ServerMessage;
import nextapp.echo2.webrender.Service;
import nextapp.echo2.webrender.WebRenderServlet;
import nextapp.echo2.webrender.output.CssStyle;
import nextapp.echo2.webrender.servermessage.DomUpdate;
import nextapp.echo2.webrender.service.JavaScriptService;
import org.w3c.dom.Document;
import org.w3c.dom.DocumentFragment;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.Text;
/**
* Synchronization peer for
* nextapp.echo2.app.AbstractButton-derived components.
*
* This class should not be extended or used by classes outside of the
* Echo framework.
*/
public class ButtonPeer
implements ActionProcessor, DomUpdateSupport, ImageRenderSupport, PropertyUpdateProcessor, ComponentSynchronizePeer {
private static final Alignment DEFAULT_TEXT_POSITION = new Alignment(Alignment.TRAILING, Alignment.DEFAULT);
private static final Alignment DEFAULT_STATE_POSITION = new Alignment(Alignment.LEADING, Alignment.DEFAULT);
private static final Extent DEFAULT_ICON_TEXT_MARGIN = new Extent(5);
private static final ImageReference DEFAULT_CHECKBOX_ICON
= new ResourceImageReference("/nextapp/echo2/webcontainer/resource/image/CheckBoxOff.gif");
private static final ImageReference DEFAULT_SELECTED_CHECKBOX_ICON
= new ResourceImageReference("/nextapp/echo2/webcontainer/resource/image/CheckBoxOn.gif");
private static final ImageReference DEFAULT_RADIOBUTTON_ICON
= new ResourceImageReference("/nextapp/echo2/webcontainer/resource/image/RadioButtonOff.gif");
private static final ImageReference DEFAULT_SELECTED_RADIOBUTTON_ICON
= new ResourceImageReference("/nextapp/echo2/webcontainer/resource/image/RadioButtonOn.gif");
private static final String[] BUTTON_INIT_KEYS = new String[]{"default-style", "rollover-style", "pressed-style"};
private static final String IMAGE_ID_BACKGROUND = "background";
private static final String IMAGE_ID_ICON = "icon";
private static final String IMAGE_ID_ROLLOVER_BACKGROUND = "rolloverBackground";
private static final String IMAGE_ID_ROLLOVER_ICON = "rolloverIcon";
private static final String IMAGE_ID_ROLLOVER_STATE_ICON = "rolloverStateIcon";
private static final String IMAGE_ID_ROLLOVER_SELECTED_STATE_ICON = "rolloverSelectedStateIcon";
private static final String IMAGE_ID_PRESSED_BACKGROUND = "pressedBackground";
private static final String IMAGE_ID_PRESSED_ICON = "pressedIcon";
private static final String IMAGE_ID_PRESSED_STATE_ICON = "pressedStateIcon";
private static final String IMAGE_ID_PRESSED_SELECTED_STATE_ICON = "pressedSelectedStateIcon";
private static final String IMAGE_ID_STATE_ICON = "stateIcon";
private static final String IMAGE_ID_SELECTED_STATE_ICON = "selectedStateIcon";
private static final String CONTAINER_TABLE_CSS_TEXT_DEFAULT = "border:0px none;border-collapse:collapse;";
private static final String CONTAINER_TABLE_CSS_TEXT_LEFT = "border:0px none;border-collapse:collapse; margin: 0 auto 0 0";
private static final String CONTAINER_TABLE_CSS_TEXT_CENTER = "border:0px none;border-collapse:collapse; margin: 0 auto;";
private static final String CONTAINER_TABLE_CSS_TEXT_RIGHT = "border:0px none;border-collapse:collapse; margin: 0 0 0 auto;";
/**
* Service to provide supporting JavaScript library.
*/
private static final Service BUTTON_SERVICE = JavaScriptService.forResource("Echo.Button",
"/nextapp/echo2/webcontainer/resource/js/Button.js");
static {
WebRenderServlet.getServiceRegistry().add(BUTTON_SERVICE);
}
/**
* Determines the CSS text which should be placed in the 'style' attribute
* of the button's container TABLE element.
*
* @param button the rendering AbstractButton
* @return the CSS text
*/
private static String getContainerTableCssText(AbstractButton button) {
Alignment alignment = (Alignment) button.getRenderProperty(AbstractButton.PROPERTY_ALIGNMENT);
if (alignment != null) {
int horizontal = AlignmentRender.getRenderedHorizontal(alignment, button);
switch (horizontal) {
case Alignment.LEFT:
return CONTAINER_TABLE_CSS_TEXT_LEFT;
case Alignment.CENTER:
return CONTAINER_TABLE_CSS_TEXT_CENTER;
case Alignment.RIGHT:
return CONTAINER_TABLE_CSS_TEXT_RIGHT;
}
}
return CONTAINER_TABLE_CSS_TEXT_DEFAULT;
}
/**
* @see nextapp.echo2.webcontainer.ComponentSynchronizePeer#getContainerId(nextapp.echo2.app.Component)
*/
public String getContainerId(Component child) {
throw new UnsupportedOperationException("Component does not support children.");
}
/**
* Combines the properties of two Alignment objects together.
* Properties of the secondary object will override default
* properties of the primary.
*
* @param primary the first Alignment (may be null)
* @param secondary the second Alignment (may be null)
* @return a new Alignment combining the values of both (or
* null if both input Alignments were null
*/
private Alignment combineAlignment(Alignment primary, Alignment secondary) {
if (primary == null) {
return secondary;
} else if (secondary == null) {
return primary;
}
int horizontal = primary.getHorizontal();
int vertical = primary.getVertical();
Alignment alignment = new Alignment(horizontal == Alignment.DEFAULT ? secondary.getHorizontal() : horizontal,
vertical == Alignment.DEFAULT ? secondary.getVertical() : vertical);
return alignment;
}
/**
* @see nextapp.echo2.webcontainer.image.ImageRenderSupport#getImage(nextapp.echo2.app.Component,
* java.lang.String)
*/
public ImageReference getImage(Component component, String imageId) {
if (IMAGE_ID_ICON.equals(imageId)) {
if (component.isRenderEnabled()) {
return (ImageReference) component.getRenderProperty(AbstractButton.PROPERTY_ICON);
} else {
ImageReference icon = (ImageReference) component.getRenderProperty(AbstractButton.PROPERTY_DISABLED_ICON);
if (icon == null) {
icon = (ImageReference) component.getRenderProperty(AbstractButton.PROPERTY_ICON);
}
return icon;
}
} else if (IMAGE_ID_ROLLOVER_ICON.equals(imageId)) {
return (ImageReference) component.getRenderProperty(AbstractButton.PROPERTY_ROLLOVER_ICON);
} else if (IMAGE_ID_PRESSED_ICON.equals(imageId)) {
return (ImageReference) component.getRenderProperty(AbstractButton.PROPERTY_PRESSED_ICON);
} else if (IMAGE_ID_STATE_ICON.equals(imageId)) {
return getStateIcon((ToggleButton) component);
} else if (IMAGE_ID_SELECTED_STATE_ICON.equals(imageId)) {
return getSelectedStateIcon((ToggleButton) component);
} else if (IMAGE_ID_BACKGROUND.equals(imageId)) {
FillImage backgroundImage;
if (component.isRenderEnabled()) {
backgroundImage = (FillImage) component.getRenderProperty(AbstractButton.PROPERTY_BACKGROUND_IMAGE);
} else {
backgroundImage = (FillImage) component.getRenderProperty(AbstractButton.PROPERTY_DISABLED_BACKGROUND_IMAGE);
if (backgroundImage == null) {
backgroundImage = (FillImage) component.getRenderProperty(AbstractButton.PROPERTY_BACKGROUND_IMAGE);
}
}
if (backgroundImage == null) {
return null;
} else {
return backgroundImage.getImage();
}
} else if (IMAGE_ID_ROLLOVER_BACKGROUND.equals(imageId)) {
FillImage backgroundImage
= (FillImage) component.getRenderProperty(AbstractButton.PROPERTY_ROLLOVER_BACKGROUND_IMAGE);
if (backgroundImage == null) {
return null;
} else {
return backgroundImage.getImage();
}
} else if (IMAGE_ID_PRESSED_BACKGROUND.equals(imageId)) {
FillImage backgroundImage
= (FillImage) component.getRenderProperty(AbstractButton.PROPERTY_PRESSED_BACKGROUND_IMAGE);
if (backgroundImage == null) {
return null;
} else {
return backgroundImage.getImage();
}
} else if (IMAGE_ID_ROLLOVER_STATE_ICON.equals(imageId)) {
ImageReference icon = (ImageReference) component.getRenderProperty(ToggleButton.PROPERTY_ROLLOVER_STATE_ICON);
return icon == null ? getStateIcon((ToggleButton) component) : icon;
} else if (IMAGE_ID_ROLLOVER_SELECTED_STATE_ICON.equals(imageId)) {
ImageReference icon = (ImageReference) component.getRenderProperty(ToggleButton.PROPERTY_ROLLOVER_SELECTED_STATE_ICON);
return icon == null ? getSelectedStateIcon((ToggleButton) component) : icon;
} else if (IMAGE_ID_PRESSED_STATE_ICON.equals(imageId)) {
ImageReference icon = (ImageReference) component.getRenderProperty(ToggleButton.PROPERTY_PRESSED_STATE_ICON);
return icon == null ? getStateIcon((ToggleButton) component) : icon;
} else if (IMAGE_ID_PRESSED_SELECTED_STATE_ICON.equals(imageId)) {
ImageReference icon = (ImageReference) component.getRenderProperty(ToggleButton.PROPERTY_PRESSED_SELECTED_STATE_ICON);
return icon == null ? getSelectedStateIcon((ToggleButton) component) : icon;
} else {
return null;
}
}
/**
* Determines the selected state icon of the specified
* ToggleButton.
*
* @param toggleButton the ToggleButton
* @return the selected state icon
*/
private ImageReference getSelectedStateIcon(ToggleButton toggleButton) {
ImageReference selectedStateIcon
= (ImageReference) toggleButton.getRenderProperty(ToggleButton.PROPERTY_SELECTED_STATE_ICON);
if (selectedStateIcon == null) {
if (toggleButton instanceof CheckBox) {
selectedStateIcon = DEFAULT_SELECTED_CHECKBOX_ICON;
} else if (toggleButton instanceof RadioButton) {
selectedStateIcon = DEFAULT_SELECTED_RADIOBUTTON_ICON;
}
}
return selectedStateIcon;
}
/**
* Determines the default (non-selected) state icon of the specified
* ToggleButton.
*
* @param toggleButton the ToggleButton
* @return the state icon
*/
private ImageReference getStateIcon(ToggleButton toggleButton) {
ImageReference stateIcon = (ImageReference) toggleButton.getRenderProperty(ToggleButton.PROPERTY_STATE_ICON);
if (stateIcon == null) {
if (toggleButton instanceof CheckBox) {
stateIcon = DEFAULT_CHECKBOX_ICON;
} else if (toggleButton instanceof RadioButton) {
stateIcon = DEFAULT_RADIOBUTTON_ICON;
}
}
return stateIcon;
}
/**
* @see nextapp.echo2.webcontainer.ActionProcessor#processAction(nextapp.echo2.webcontainer.ContainerInstance,
* nextapp.echo2.app.Component, org.w3c.dom.Element)
*/
public void processAction(ContainerInstance ci, Component component, Element actionElement) {
ci.getUpdateManager().getClientUpdateManager().setComponentAction(component, AbstractButton.INPUT_CLICK, null);
}
/**
* @see nextapp.echo2.webcontainer.PropertyUpdateProcessor#processPropertyUpdate(
* nextapp.echo2.webcontainer.ContainerInstance, nextapp.echo2.app.Component, org.w3c.dom.Element)
*/
public void processPropertyUpdate(ContainerInstance ci, Component component, Element propertyElement) {
String propertyName = propertyElement.getAttribute(PropertyUpdateProcessor.PROPERTY_NAME);
if (ToggleButton.SELECTED_CHANGED_PROPERTY.equals(propertyName)) {
Boolean propertyValue = new Boolean("true".equals(propertyElement.getAttribute("value")));
ci.getUpdateManager().getClientUpdateManager().setComponentProperty(component,
ToggleButton.SELECTED_CHANGED_PROPERTY, propertyValue);
}
}
/**
* @see nextapp.echo2.webcontainer.ComponentSynchronizePeer#renderAdd(nextapp.echo2.webcontainer.RenderContext,
* nextapp.echo2.app.update.ServerComponentUpdate, java.lang.String, nextapp.echo2.app.Component)
*/
public void renderAdd(RenderContext rc, ServerComponentUpdate update, String targetId, Component component) {
Element domAddElement = DomUpdate.renderElementAdd(rc.getServerMessage());
DocumentFragment htmlFragment = rc.getServerMessage().getDocument().createDocumentFragment();
renderHtml(rc, update, htmlFragment, component);
DomUpdate.renderElementAddContent(rc.getServerMessage(), domAddElement, targetId, htmlFragment);
}
/**
* Renders the containing DIV element of a button.
*
* @param rc the relevant RenderContext
* @param parentNode the parent node
* @param button the AbstractButton being rendered
* @return the rendered DIV element (note that this element will already
* have been appended to the parent)
*/
private Element renderButtonContainer(RenderContext rc, Node parentNode, AbstractButton button) {
Element divElement = parentNode.getOwnerDocument().createElement("div");
divElement.setAttribute("id", ContainerInstance.getElementId(button));
if (button.isFocusTraversalParticipant()) {
divElement.setAttribute("tabindex", Integer.toString(button.getFocusTraversalIndex()));
} else {
divElement.setAttribute("tabindex", "-1");
}
boolean renderEnabled = button.isRenderEnabled();
String toolTipText = (String) button.getRenderProperty(AbstractButton.PROPERTY_TOOL_TIP_TEXT);
if (renderEnabled && toolTipText != null) {
divElement.setAttribute("title", toolTipText);
}
divElement.setAttribute("style", "visibility:hidden;");
parentNode.appendChild(divElement);
return divElement;
}
/**
* Renders the content of the button, i.e., its text, icon, and/or state icon.
*
* @param rc the relevant RenderContext
* @param buttonContainerElement the Element which will
* contain the content
* @param button the AbstractButton being rendered
*/
private void renderButtonContent(RenderContext rc, Element buttonContainerElement, AbstractButton button) {
Node contentNode;
Document document = rc.getServerMessage().getDocument();
ToggleButton toggleButton = button instanceof ToggleButton ? (ToggleButton) button : null;
String elementId = ContainerInstance.getElementId(button);
String text = (String) button.getRenderProperty(AbstractButton.PROPERTY_TEXT);
ImageReference icon = (ImageReference) button.getRenderProperty(AbstractButton.PROPERTY_ICON);
// Create entities.
Text textNode = text == null ? null : rc.getServerMessage().getDocument().createTextNode(
(String) button.getRenderProperty(AbstractButton.PROPERTY_TEXT));
Element iconElement;
if (icon == null) {
iconElement = null;
} else {
iconElement = ImageReferenceRender.renderImageReferenceElement(rc, ButtonPeer.this, button,
IMAGE_ID_ICON);
iconElement.setAttribute("id", elementId + "_icon");
}
Element stateIconElement;
if (toggleButton == null) {
stateIconElement = null;
} else {
stateIconElement = ImageReferenceRender.renderImageReferenceElement(rc, ButtonPeer.this, button,
toggleButton.isSelected() ? IMAGE_ID_SELECTED_STATE_ICON : IMAGE_ID_STATE_ICON);
stateIconElement.setAttribute("id", elementId + "_stateicon");
}
int entityCount = (textNode == null ? 0 : 1) + (iconElement == null ? 0 : 1) + (stateIconElement == null ? 0 : 1);
Extent iconTextMargin;
Alignment textPosition;
Element tableElement;
switch (entityCount) {
case 1:
if (textNode != null) {
contentNode = textNode;
} else if (iconElement != null) {
contentNode = iconElement;
} else { // stateIconElement must not be null.
contentNode = stateIconElement;
}
break;
case 2:
iconTextMargin = (Extent) button.getRenderProperty(AbstractButton.PROPERTY_ICON_TEXT_MARGIN,
DEFAULT_ICON_TEXT_MARGIN);
TriCellTable tct;
textPosition = (Alignment) button.getRenderProperty(AbstractButton.PROPERTY_TEXT_POSITION,
DEFAULT_TEXT_POSITION);
if (stateIconElement == null) {
// Not rendering a ToggleButton.
int orientation = TriCellTableConfigurator.convertIconTextPositionToOrientation(textPosition, button);
tct = new TriCellTable(rc, document, elementId, orientation, iconTextMargin);
renderCellText(tct, textNode, button);
renderCellIcon(tct, iconElement, 1, button);
} else {
// Rendering a ToggleButton.
Extent stateMargin = (Extent) button.getRenderProperty(ToggleButton.PROPERTY_STATE_MARGIN,
DEFAULT_ICON_TEXT_MARGIN);
Alignment statePosition = (Alignment) button.getRenderProperty(ToggleButton.PROPERTY_STATE_POSITION,
DEFAULT_STATE_POSITION);
int orientation = TriCellTableConfigurator.convertStatePositionToOrientation(statePosition, button);
tct = new TriCellTable(rc, document, elementId, orientation, stateMargin);
if (textNode == null) {
renderCellIcon(tct, iconElement, 0, button);
} else {
renderCellText(tct, textNode, button);
}
renderCellState(tct, stateIconElement, 1, button);
}
tct.addCellCssText("padding:0px;");
tableElement = tct.getTableElement();
tableElement.setAttribute("id", elementId + "_table");
tableElement.setAttribute("style", getContainerTableCssText(button));
contentNode = tableElement;
break;
case 3:
iconTextMargin = (Extent) button.getRenderProperty(AbstractButton.PROPERTY_ICON_TEXT_MARGIN,
DEFAULT_ICON_TEXT_MARGIN);
textPosition = (Alignment) button.getRenderProperty(AbstractButton.PROPERTY_TEXT_POSITION,
DEFAULT_TEXT_POSITION);
Extent stateMargin = (Extent) button.getRenderProperty(ToggleButton.PROPERTY_STATE_MARGIN,
DEFAULT_ICON_TEXT_MARGIN);
Alignment statePosition = (Alignment) button.getRenderProperty(ToggleButton.PROPERTY_STATE_POSITION,
DEFAULT_STATE_POSITION);
int stateOrientation = TriCellTableConfigurator.convertStatePositionToOrientation(statePosition, button);
int orientation = TriCellTableConfigurator.convertIconTextPositionToOrientation(textPosition, button);
tct = new TriCellTable(rc, document, elementId, orientation, iconTextMargin, stateOrientation, stateMargin);
renderCellText(tct, textNode, button);
renderCellIcon(tct, iconElement, 1, button);
renderCellState(tct, stateIconElement, 2, button);
tct.addCellCssText("padding:0px;");
tableElement = tct.getTableElement();
tableElement.setAttribute("id", elementId + "_table");
tableElement.setAttribute("style", getContainerTableCssText(button));
contentNode = tableElement;
break;
default:
// 0 element button.
contentNode = null;
}
if (contentNode != null) {
buttonContainerElement.appendChild(contentNode);
}
}
/**
* Renders the content of the TriCellTable cell which
* contains the button's icon.
*
* @param tct the TriCellTable to update
* @param iconElement the icon element
* @param cellIndex the index of the cell in the TriCellTable
* that should contain the icon
*/
private void renderCellIcon(TriCellTable tct, Element iconElement, int cellIndex, AbstractButton button) {
Element iconTdElement = tct.getTdElement(cellIndex);
Alignment alignment = (Alignment) button.getRenderProperty(AbstractButton.PROPERTY_ALIGNMENT);
if (alignment != null) {
CssStyle style = new CssStyle();
AlignmentRender.renderToStyle(style, alignment, button);
iconTdElement.setAttribute("style", style.renderInline());
}
iconTdElement.appendChild(iconElement);
}
/**
* Renders the content of the TriCellTable cell which
* contains the button's state icon.
*
* @param tct the TriCellTable to update
* @param stateIconElement the state icon element
* @param cellIndex the index of the cell in the TriCellTable
* that should contain the state icon
* @param button the AbstractButton being rendered
*/
private void renderCellState(TriCellTable tct, Element stateIconElement, int cellIndex, AbstractButton button) {
Element stateTdElement = tct.getTdElement(cellIndex);
CssStyle stateTdCssStyle = new CssStyle();
AlignmentRender.renderToStyle(stateTdCssStyle,
(Alignment) button.getRenderProperty(ToggleButton.PROPERTY_STATE_ALIGNMENT), button);
stateTdElement.setAttribute("style", stateTdCssStyle.renderInline());
stateTdElement.appendChild(stateIconElement);
}
/**
* Renders the content of the TriCellTable cell which
* contains the button's text.
* Text is always rendered in cell #0 of the table.
*
* @param tct the TriCellTable to update
* @param textNode the text
* @param button the AbstractButton being rendered
*/
private void renderCellText(TriCellTable tct, Text textNode, AbstractButton button) {
Element textTdElement = tct.getTdElement(0);
CssStyle textTdCssStyle = new CssStyle();
if (Boolean.FALSE.equals(button.getRenderProperty(AbstractButton.PROPERTY_LINE_WRAP))) {
textTdCssStyle.setAttribute("white-space", "nowrap");
}
Alignment alignment = combineAlignment((Alignment) button.getRenderProperty(AbstractButton.PROPERTY_TEXT_ALIGNMENT),
(Alignment) button.getRenderProperty(AbstractButton.PROPERTY_ALIGNMENT));
AlignmentRender.renderToStyle(textTdCssStyle, alignment, button);
boolean renderEnabled = button.isRenderEnabled();
Font font;
if (renderEnabled) {
font = (Font) button.getRenderProperty(AbstractButton.PROPERTY_FONT);
} else {
font = (Font) button.getRenderProperty(AbstractButton.PROPERTY_DISABLED_FONT);
if (font == null) {
font = (Font) button.getRenderProperty(AbstractButton.PROPERTY_FONT);
}
}
FontRender.renderToStyle(textTdCssStyle, font);
if (textTdCssStyle.hasAttributes()) {
textTdElement.setAttribute("style", textTdCssStyle.renderInline());
}
textTdElement.appendChild(textNode);
}
/**
* Render default CSS style.
*/
private CssStyle renderDefaultStyle(RenderContext rc, AbstractButton button) {
int entityCount = (button.getRenderProperty(AbstractButton.PROPERTY_TEXT) == null ? 1 : 0)
+ (button.getRenderProperty(AbstractButton.PROPERTY_ICON) == null ? 1 : 0)
+ (button instanceof ToggleButton ? 1 : 0);
CssStyle cssStyle = new CssStyle();
LayoutDirectionRender.renderToStyle(cssStyle, button.getLayoutDirection(), button.getLocale());
ExtentRender.renderToStyle(cssStyle, "width", (Extent) button.getRenderProperty(AbstractButton.PROPERTY_WIDTH));
Extent height = (Extent) button.getRenderProperty(AbstractButton.PROPERTY_HEIGHT);
if (height != null) {
ExtentRender.renderToStyle(cssStyle, "height", height);
cssStyle.setAttribute("overflow", "hidden");
}
if (Boolean.FALSE.equals(button.getRenderProperty(AbstractButton.PROPERTY_LINE_WRAP))) {
cssStyle.setAttribute("white-space", "nowrap");
}
boolean renderEnabled = button.isRenderEnabled();
Border border;
Color foreground, background;
Font font = null;
FillImage backgroundImage;
if (!renderEnabled) {
// Retrieve disabled style information.
background = (Color) button.getRenderProperty(AbstractButton.PROPERTY_DISABLED_BACKGROUND);
backgroundImage = (FillImage) button.getRenderProperty(AbstractButton.PROPERTY_DISABLED_BACKGROUND_IMAGE);
border = (Border) button.getRenderProperty(AbstractButton.PROPERTY_DISABLED_BORDER);
foreground = (Color) button.getRenderProperty(AbstractButton.PROPERTY_DISABLED_FOREGROUND);
// Fallback to normal styles.
if (background == null) {
background = (Color) button.getRenderProperty(AbstractButton.PROPERTY_BACKGROUND);
if (backgroundImage == null) {
// Special case:
// Disabled background without disabled background image will render disabled background instead of
// normal background image.
backgroundImage = (FillImage) button.getRenderProperty(AbstractButton.PROPERTY_BACKGROUND_IMAGE);
}
}
if (border == null) {
border = (Border) button.getRenderProperty(AbstractButton.PROPERTY_BORDER);
}
if (foreground == null) {
foreground = (Color) button.getRenderProperty(AbstractButton.PROPERTY_FOREGROUND);
}
if (entityCount == 1) {
font = (Font) button.getRenderProperty(AbstractButton.PROPERTY_DISABLED_FONT);
if (font == null) {
font = (Font) button.getRenderProperty(AbstractButton.PROPERTY_FONT);
}
}
} else {
border = (Border) button.getRenderProperty(AbstractButton.PROPERTY_BORDER);
foreground = (Color) button.getRenderProperty(AbstractButton.PROPERTY_FOREGROUND);
background = (Color) button.getRenderProperty(AbstractButton.PROPERTY_BACKGROUND);
backgroundImage = (FillImage) button.getRenderProperty(AbstractButton.PROPERTY_BACKGROUND_IMAGE);
if (entityCount == 1) {
font = (Font) button.getRenderProperty(AbstractButton.PROPERTY_FONT);
}
}
BorderRender.renderToStyle(cssStyle, border);
ColorRender.renderToStyle(cssStyle, foreground, background);
FillImageRender.renderToStyle(cssStyle, rc, this, button, IMAGE_ID_BACKGROUND, backgroundImage,
FillImageRender.FLAG_DISABLE_FIXED_MODE);
if (entityCount == 1) {
FontRender.renderToStyle(cssStyle, font);
}
InsetsRender.renderToStyle(cssStyle, "padding", (Insets) button.getRenderProperty(AbstractButton.PROPERTY_INSETS));
AlignmentRender.renderToStyle(cssStyle,
(Alignment) button.getRenderProperty(AbstractButton.PROPERTY_ALIGNMENT), button);
return cssStyle;
}
/**
* @see nextapp.echo2.webcontainer.ComponentSynchronizePeer#renderDispose(nextapp.echo2.webcontainer.RenderContext,
* nextapp.echo2.app.update.ServerComponentUpdate, nextapp.echo2.app.Component)
*/
public void renderDispose(RenderContext rc, ServerComponentUpdate update, Component component) {
rc.getServerMessage().addLibrary(BUTTON_SERVICE.getId());
renderDisposeDirective(rc, (AbstractButton) component);
}
/**
* Renders a directive to the outgoing ServerMessage to
* dispose the state of a button, performing tasks such as unregistering
* event listeners on the client.
*
* @param rc the relevant RenderContext
* @param button the button
*/
private void renderDisposeDirective(RenderContext rc, AbstractButton button) {
ServerMessage serverMessage = rc.getServerMessage();
Element itemizedUpdateElement = serverMessage.getItemizedDirective(ServerMessage.GROUP_ID_PREREMOVE,
"EchoButton.MessageProcessor", "dispose", new String[0], new String[0]);
Element itemElement = serverMessage.getDocument().createElement("item");
itemElement.setAttribute("eid", ContainerInstance.getElementId(button));
itemizedUpdateElement.appendChild(itemElement);
}
/**
* @see nextapp.echo2.webcontainer.DomUpdateSupport#renderHtml(nextapp.echo2.webcontainer.RenderContext,
* nextapp.echo2.app.update.ServerComponentUpdate, org.w3c.dom.Node, nextapp.echo2.app.Component)
*/
public void renderHtml(RenderContext rc, ServerComponentUpdate update, Node parentNode, Component component) {
ServerMessage serverMessage = rc.getServerMessage();
serverMessage.addLibrary(BUTTON_SERVICE.getId());
AbstractButton button = (AbstractButton) component;
Element containerDivElement = renderButtonContainer(rc, parentNode, button);
renderInitDirective(rc, button);
renderButtonContent(rc, containerDivElement, button);
}
/**
* Renders a directive to the outgoing ServerMessage to
* initialize the state of a button, performing tasks such as registering
* event listeners on the client.
*
* @param rc the relevant RenderContext
* @param button the button
*/
private void renderInitDirective(RenderContext rc, AbstractButton button) {
String elementId = ContainerInstance.getElementId(button);
ServerMessage serverMessage = rc.getServerMessage();
FillImage backgroundImage = (FillImage) button.getRenderProperty(AbstractButton.PROPERTY_BACKGROUND_IMAGE);
boolean rolloverEnabled = ((Boolean) button.getRenderProperty(AbstractButton.PROPERTY_ROLLOVER_ENABLED,
Boolean.FALSE)).booleanValue();
boolean pressedEnabled = ((Boolean) button.getRenderProperty(AbstractButton.PROPERTY_PRESSED_ENABLED,
Boolean.FALSE)).booleanValue();
String pressedStyle = "";
String rolloverStyle = "";
String defaultIconUri = null;
String rolloverIconUri = null;
String pressedIconUri = null;
if (rolloverEnabled || pressedEnabled) {
boolean hasIcon = button.getRenderProperty(AbstractButton.PROPERTY_ICON) != null;
if (hasIcon) {
defaultIconUri = ImageTools.getUri(rc, this, button, IMAGE_ID_ICON);
}
if (rolloverEnabled) {
CssStyle rolloverCssStyle = new CssStyle();
BorderRender.renderToStyle(rolloverCssStyle,
(Border) button.getRenderProperty(AbstractButton.PROPERTY_ROLLOVER_BORDER));
ColorRender.renderToStyle(rolloverCssStyle,
(Color) button.getRenderProperty(AbstractButton.PROPERTY_ROLLOVER_FOREGROUND),
(Color) button.getRenderProperty(AbstractButton.PROPERTY_ROLLOVER_BACKGROUND));
FontRender.renderToStyle(rolloverCssStyle,
(Font) button.getRenderProperty(AbstractButton.PROPERTY_ROLLOVER_FONT));
if (backgroundImage != null) {
FillImageRender.renderToStyle(rolloverCssStyle, rc, this, button, IMAGE_ID_ROLLOVER_BACKGROUND,
(FillImage) button.getRenderProperty(AbstractButton.PROPERTY_ROLLOVER_BACKGROUND_IMAGE),
FillImageRender.FLAG_DISABLE_FIXED_MODE);
}
if (rolloverCssStyle.hasAttributes()) {
rolloverStyle = rolloverCssStyle.renderInline();
}
if (hasIcon) {
ImageReference rolloverIcon = (ImageReference) button.getRenderProperty(AbstractButton.PROPERTY_ROLLOVER_ICON);
if (rolloverIcon != null) {
rolloverIconUri = ImageTools.getUri(rc, this, button, IMAGE_ID_ROLLOVER_ICON);
}
}
}
if (pressedEnabled) {
CssStyle pressedCssStyle = new CssStyle();
BorderRender.renderToStyle(pressedCssStyle,
(Border) button.getRenderProperty(AbstractButton.PROPERTY_PRESSED_BORDER));
ColorRender.renderToStyle(pressedCssStyle,
(Color) button.getRenderProperty(AbstractButton.PROPERTY_PRESSED_FOREGROUND),
(Color) button.getRenderProperty(AbstractButton.PROPERTY_PRESSED_BACKGROUND));
FontRender.renderToStyle(pressedCssStyle,
(Font) button.getRenderProperty(AbstractButton.PROPERTY_PRESSED_FONT));
if (backgroundImage != null) {
FillImageRender.renderToStyle(pressedCssStyle, rc, this, button, IMAGE_ID_PRESSED_BACKGROUND,
(FillImage) button.getRenderProperty(AbstractButton.PROPERTY_PRESSED_BACKGROUND_IMAGE),
FillImageRender.FLAG_DISABLE_FIXED_MODE);
}
if (pressedCssStyle.hasAttributes()) {
pressedStyle = pressedCssStyle.renderInline();
}
if (hasIcon) {
ImageReference pressedIcon = (ImageReference) button.getRenderProperty(AbstractButton.PROPERTY_PRESSED_ICON);
if (pressedIcon != null) {
pressedIconUri = ImageTools.getUri(rc, this, button, IMAGE_ID_PRESSED_ICON);
}
}
}
}
CssStyle defaultCssStyle = renderDefaultStyle(rc, button);
String defaultStyle = defaultCssStyle.renderInline();
Element itemizedUpdateElement = serverMessage.getItemizedDirective(ServerMessage.GROUP_ID_POSTUPDATE,
"EchoButton.MessageProcessor", "init", BUTTON_INIT_KEYS, new String[]{defaultStyle, rolloverStyle, pressedStyle});
Element itemElement = serverMessage.getDocument().createElement("item");
itemElement.setAttribute("eid", elementId);
if (defaultIconUri != null) {
itemElement.setAttribute("default-icon", defaultIconUri);
}
if (rolloverIconUri != null) {
itemElement.setAttribute("rollover-icon", rolloverIconUri);
}
if (pressedIconUri != null) {
itemElement.setAttribute("pressed-icon", pressedIconUri);
}
if (!button.hasActionListeners()) {
itemElement.setAttribute("server-notify", "false");
}
if (!button.isRenderEnabled()) {
itemElement.setAttribute("enabled", "false");
}
if (button instanceof ToggleButton) {
ToggleButton toggleButton = (ToggleButton) button;
itemElement.setAttribute("toggle", "true");
itemElement.setAttribute("selected", toggleButton.isSelected() ? "true" : "false");
itemElement.setAttribute("state-icon", ImageTools.getUri(rc, this, toggleButton, IMAGE_ID_STATE_ICON));
itemElement.setAttribute("selected-state-icon", ImageTools.getUri(rc, this, toggleButton,
IMAGE_ID_SELECTED_STATE_ICON));
if (rolloverEnabled && toggleButton.getRenderProperty(ToggleButton.PROPERTY_ROLLOVER_STATE_ICON) != null
&& toggleButton.getRenderProperty(ToggleButton.PROPERTY_ROLLOVER_SELECTED_STATE_ICON) != null) {
itemElement.setAttribute("rollover-state-icon",
ImageTools.getUri(rc, this, toggleButton, IMAGE_ID_ROLLOVER_STATE_ICON));
itemElement.setAttribute("rollover-selected-state-icon",
ImageTools.getUri(rc, this, toggleButton, IMAGE_ID_ROLLOVER_SELECTED_STATE_ICON));
}
if (pressedEnabled && toggleButton.getRenderProperty(ToggleButton.PROPERTY_PRESSED_STATE_ICON) != null
&& toggleButton.getRenderProperty(ToggleButton.PROPERTY_PRESSED_SELECTED_STATE_ICON) != null) {
itemElement.setAttribute("pressed-state-icon",
ImageTools.getUri(rc, this, toggleButton, IMAGE_ID_PRESSED_STATE_ICON));
itemElement.setAttribute("pressed-selected-state-icon",
ImageTools.getUri(rc, this, toggleButton, IMAGE_ID_PRESSED_SELECTED_STATE_ICON));
}
if (button instanceof RadioButton) {
ButtonGroup buttonGroup = ((RadioButton) toggleButton).getGroup();
if (buttonGroup != null) {
rc.getContainerInstance().getIdTable().register(buttonGroup);
itemElement.setAttribute("group", buttonGroup.getRenderId());
}
}
}
itemizedUpdateElement.appendChild(itemElement);
}
/**
* @see nextapp.echo2.webcontainer.ComponentSynchronizePeer#renderUpdate(nextapp.echo2.webcontainer.RenderContext,
* nextapp.echo2.app.update.ServerComponentUpdate, java.lang.String)
*/
public boolean renderUpdate(RenderContext rc, ServerComponentUpdate update, String targetId) {
String parentId = ContainerInstance.getElementId(update.getParent());
DomUpdate.renderElementRemove(rc.getServerMessage(), parentId);
renderAdd(rc, update, targetId, update.getParent());
return false;
}
}