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package com.sun.webui.jsf.util;
import com.sun.webui.theme.Theme;
import com.sun.webui.jsf.component.ProgressBar;
import com.sun.webui.jsf.theme.ThemeImages;
import com.sun.webui.jsf.theme.ThemeJavascript;
import com.sun.webui.jsf.theme.ThemeStyles;
import com.sun.webui.jsf.theme.ThemeTemplates;
import java.io.IOException;
import java.util.Map;
import java.util.HashMap;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.json.JSONException;
import org.json.JSONObject;
/**
* This class provides common methods for rendering JavaScript includes, default
* properties, etc.
*/
public class JavaScriptUtilities {
// The number of spaces to add to each level of indentation.
public static final int INDENT_FACTOR = 4;
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// JavaScript config methods
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/**
* Get JavaScript used to configure Dojo.
*
* Note: Must be rendered before including dojo.js in page.
*
* @param debug Enable JavaScript debugging.
* @param parseWidgets Enable searching of dojoType widget tags.
*/
public static String getDojoConfig(boolean debug, boolean parseWidgets) {
Theme theme = getTheme();
StringBuffer buff = new StringBuffer(256);
try {
JSONObject json = new JSONObject();
json.put("isDebug", debug)
.put("debugAtAllCosts", debug)
.put("parseWidgets", parseWidgets);
buff.append("djConfig=")
.append(json.toString(INDENT_FACTOR))
.append(";\n");
} catch (JSONException e) {
e.printStackTrace();
}
return buff.toString();
}
/**
* Get JavaScript used to configure module resources.
*
* Note: Must be rendered before including widget.js in page, but after
* formElements.js.
*
* @param writeIncludes Write includes for JavaScript debugging.
*/
public static String getModuleConfig(boolean writeIncludes) {
Theme theme = getTheme();
StringBuffer buff = new StringBuffer(256);
// Append JavaScript.
buff.append("dojo.hostenv.setModulePrefix(\"")
.append(getTheme().getJSString(ThemeJavascript.MODULE_PREFIX))
.append("\", \"")
.append(theme.getPathToJSFile(ThemeJavascript.MODULE_PATH))
.append("\");\n")
.append(getModule("*"))
.append("\n");
// Output includes for debugging. This will ensure that JavaScript
// files are accessible to JavaScript debuggers.
if (writeIncludes) {
buff.append(getModule("widget.*"))
.append("\n")
.append(getModule("widget.jsfx.*"))
.append("\n")
.append("dojo.hostenv.writeIncludes();")
.append("\n");
}
return buff.toString();
}
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// JavaScript include methods
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/**
* Helper method to render JavaScript include.
*
* @param component UIComponent to be rendered.
* @param writer ResponseWriter to which the component should be rendered.
*
* @exception IOException if an input/output error occurs.
*/
public static void renderDojoInclude(UIComponent component,
ResponseWriter writer) throws IOException {
renderJavaScriptInclude(component, writer, ThemeJavascript.DOJO);
}
/**
* Helper method to render JavaScript include.
*
* @param component UIComponent to be rendered.
* @param writer ResponseWriter to which the component should be rendered.
*/
public static void renderGlobalInclude(UIComponent component,
ResponseWriter writer) throws IOException {
String javascripts[] = getTheme().getGlobalJSFiles();
if (javascripts == null) {
return;
}
for (int i = 0; i < javascripts.length; i++) {
Object file = javascripts[i];
if (file == null) {
continue;
}
writer.startElement("script", component);
writer.writeAttribute("type", "text/javascript", null);
writer.writeURIAttribute("src", file.toString(), null);
writer.endElement("script");
writer.write("\n");
}
}
/**
* Helper method to render JavaScript include.
*
* @param component UIComponent to be rendered.
* @param writer ResponseWriter to which the component should be rendered.
*
* @exception IOException if an input/output error occurs.
*/
public static void renderJsfxInclude(UIComponent component,
ResponseWriter writer) throws IOException {
renderJavaScriptInclude(component, writer, ThemeJavascript.JSFX);
}
/**
* Helper method to render JavaScript include.
*
* @param component UIComponent to be rendered.
* @param writer ResponseWriter to which the component should be rendered.
*
* @exception IOException if an input/output error occurs.
*/
public static void renderJsonInclude(UIComponent component,
ResponseWriter writer) throws IOException {
renderJavaScriptInclude(component, writer, ThemeJavascript.JSON);
}
/**
* Helper method to render JavaScript include.
*
* @param component UIComponent to be rendered.
* @param writer ResponseWriter to which the component should be rendered.
*
* @exception IOException if an input/output error occurs.
*/
public static void renderPrototypeInclude(UIComponent component,
ResponseWriter writer) throws IOException {
renderJavaScriptInclude(component, writer, ThemeJavascript.PROTOTYPE);
}
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Rendering methods
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/**
* Returns JavaScript to obtain the DOM node associated with the given
* component.
*
* When complex components are rendered, a DOM object corresponding to the
* component is created. To manipulate the component on the client side, we
* will invoke functions on the DOM object.
*
* Providing a component, with a client id of "form1:btn1", will return
* "document.getElementById('form1:btn1')". This JavaScript obtains the
* DOM object associated the HTML element. Thus, we can disable a button
* using "document.getElementById('form1:btn1').disable(true);"
*
* @param context The current FacesContext.
* @param component The current component being rendered.
* @param name The JavaScript object name to append.
*/
public static String getDomNode(FacesContext context,
UIComponent component) {
StringBuffer buff = new StringBuffer(128);
buff.append("document.getElementById('")
.append(component.getClientId(context))
.append("')");
return buff.toString();
}
/**
* Returns JavaScript used to require a Dojo module. For example, a value of
* For example, a value of "widget.*" will return
* "dojo.require('webui.suntheme.widget.*')" for a theme, named
* "suntheme".
*
* @param name The JavaScript object name to append.
*/
public static String getModule(String name) {
StringBuffer buff = new StringBuffer(128);
buff.append("dojo.require('")
.append(getModuleName(name))
.append("');");
return buff.toString();
}
/**
* Returns a string comprised of a theme prifix and the given module name.
* For example, a value of "widget.button" will return
* "webui.suntheme.widget.button" for a theme, named "suntheme".
*
* @param name The module to append to the theme prefix.
*/
public static String getModuleName(String name) {
StringBuffer buff = new StringBuffer(128);
buff.append(getTheme().getJSString(ThemeJavascript.MODULE_PREFIX))
.append(".")
.append(name);
return buff.toString();
}
/**
* Returns a string comprised of a theme prifix and the given widget name.
* For example, a value of "button" will return "webui.suntheme:button" for
* a theme, named "suntheme".
*
* @param name The widget name to append to the namespace prefix.
*/
public static String getNamespace(String name) {
StringBuffer buff = new StringBuffer(128);
buff.append(getTheme().getJSString(ThemeJavascript.MODULE_PREFIX))
.append(":")
.append(name);
return buff.toString();
}
/**
* Render JavaScript in the page, including enclosing script tags.
*
* @param component UIComponent to be rendered.
* @param writer ResponseWriter to which the component should be rendered.
* @param js The JavaScript string to render.
*
* @exception IOException if an input/output error occurs.
*/
public static void renderJavaScript(UIComponent component,
ResponseWriter writer, String js) throws IOException {
if (js == null) {
return;
}
writer.startElement("script", component);
writer.writeAttribute("type", "text/javascript", null);
writer.write("\n");
writer.write(js);
writer.endElement("script");
writer.write("\n");
}
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Private renderer methods
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Helper method to get Theme objects.
private static Theme getTheme() {
return ThemeUtilities.getTheme(FacesContext.getCurrentInstance());
}
/**
* Render given JavaScript file in page, including script tags.
*
* Note: JavaScript includes must be output in page prior to instantiating
* widgets. This can be done via the head, themeLinks, or portalTheme tags,
* but not via any other component renderer. Thus, this method is declared
* private to ovoid misuse.
*
* If JavaScript includes are output by renderers, timing issues can occur
* when client-side widgets and server-side components are rendered in the
* same page. For example, button HTML may be rendered as a JSON property
* (the child of a widget), which also contains a JavaScript include. In
* this scenario, ther buttons in the page may not initialize correctly
* because the widget has not added the JavaScript include, yet. See CR 6517246.
*
* @param component The current component being rendered.
* @param writer The current ResponseWriter.
* @param file The JavaScript file to include.
*/
private static void renderJavaScriptInclude(UIComponent component,
ResponseWriter writer, String file) throws IOException {
if (file == null) {
return;
}
String jsFile = getTheme().getPathToJSFile(file);
if (jsFile == null) {
return;
}
writer.startElement("script", component);
writer.writeAttribute("type", "text/javascript", null);
writer.writeURIAttribute("src", jsFile, null);
writer.endElement("script");
writer.write("\n");
}
}
