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net.bootsfaces.render.Responsive Maven / Gradle / Ivy
package net.bootsfaces.render;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import javax.faces.FacesException;
import javax.faces.component.UIComponent;
import javax.faces.component.UIForm;
import net.bootsfaces.component.ajax.AJAXRenderer;
import net.bootsfaces.component.form.Form;
public class Responsive {
private static String[] delimiters = new String[] {",", "..." };
private static String[] validValues = new String[] { "xs", "sm", "md", "lg", "tiny-screen", "small-screen", "medium-screen", "large-screen" };
public enum Sizes {
xs, sm, md, lg
}
/**
* Create the responsive class combination
* @param r
* @return
*/
public static String getResponsiveStyleClass(IResponsive r) { return getResponsiveStyleClass(r, true); }
public static String getResponsiveStyleClass(IResponsive r, boolean forceColMd) {
if(!shouldRenderResponsiveClasses(r)) {
return "";
}
int colxs = sizeToInt(getSize(r, Sizes.xs));
int colsm = sizeToInt(getSize(r, Sizes.sm));
int collg = sizeToInt(getSize(r, Sizes.lg));
int span = sizeToInt(r.getSpan());
int colmd = (span > 0) ? span : sizeToInt(getSize(r, Sizes.md));
if (colmd < 0) {
if ((colxs > 0) || (colsm > 0) || (collg > 0)) {
colmd = (colmd > 0) ? colmd : -1;
} else {
colmd = (colmd > 0) ? colmd : (forceColMd ? 12 : -1);
}
}
int offs = sizeToInt(r.getOffset());
int offsmd = (offs > 0) ? offs : sizeToInt(r.getOffsetMd());
int oxs = sizeToInt(r.getOffsetXs());
int osm = sizeToInt(r.getOffsetSm());
int olg = sizeToInt(r.getOffsetLg());
StringBuilder sb = new StringBuilder();
if (colmd > 0 || offsmd > 0) {
if (colmd > 0) {
sb.append("col-md-").append(colmd);
}
if (offsmd > 0) {
if (colmd > 0) {
sb.append(" ");
}
sb.append("col-md-offset-" + offsmd);
}
} else if (colmd == 0) {
if (forceColMd) {
sb.append("col-md-12");
sb.append(" hidden-md");
}
}
if (colxs > 0) {
sb.append(" col-xs-").append(colxs);
}
if (colxs == 0) {
sb.append(" hidden-xs");
}
if (colsm > 0) {
sb.append(" col-sm-").append(colsm);
}
if (colsm == 0) {
sb.append(" hidden-sm");
}
if (collg > 0) {
sb.append(" col-lg-").append(collg);
}
if (collg == 0) {
sb.append(" hidden-lg");
}
sb.append(encodeVisibility(r, r.getVisible(), "visible"));
sb.append(encodeVisibility(r, r.getHidden(), "hidden"));
if (oxs > 0) {
sb.append(" col-xs-offset-").append(oxs);
}
if (osm > 0) {
sb.append(" col-sm-offset-").append(osm);
}
if (olg > 0) {
sb.append(" col-lg-offset-").append(olg);
}
return " " + sb.toString().trim() + " ";
}
/**
* Encode the visible field
* @param r
* @return
*/
private static String encodeVisibility(IResponsive r, String value, String prefix) {
if(value == null) return "";
List str = wonderfulTokenizer(value, delimiters);
return evaluateExpression(str, delimiters, validValues, prefix, r.getDisplay());
}
/**
* Decode col sizes between two way of definition
* @param col
* @param size
* @return
*/
private static String getSize(IResponsiveLabel r, Sizes size) {
String colSize = "-1";
switch(size) {
case xs:
colSize = r.getLabelColXs();
if(colSize.equals("-1")) colSize = r.getLabelTinyScreen();
break;
case sm:
colSize = r.getLabelColSm();
if(colSize.equals("-1")) colSize = r.getLabelSmallScreen();
break;
case md:
colSize = r.getLabelColMd();
if(colSize.equals("-1")) colSize = r.getLabelMediumScreen();
break;
case lg:
colSize = r.getLabelColLg();
if(colSize.equals("-1")) colSize = r.getLabelLargeScreen();
break;
}
return colSize;
}
private static String getSize(IResponsive r, Sizes size) {
String colSize = "-1";
switch(size) {
case xs:
colSize = r.getColXs();
if(colSize.equals("-1")) colSize = r.getTinyScreen();
break;
case sm:
colSize = r.getColSm();
if(colSize.equals("-1")) colSize = r.getSmallScreen();
break;
case md:
colSize = r.getColMd();
if(colSize.equals("-1")) colSize = r.getMediumScreen();
break;
case lg:
colSize = r.getColLg();
if(colSize.equals("-1")) colSize = r.getLargeScreen();
break;
}
return colSize;
}
/**
* Convert the specified size to int value
* @param size
* @return
*/
private static int sizeToInt(String size) {
if (size==null) return -1;
if ("full".equals(size)) return 12;
if ("full-size".equals(size)) return 12;
if ("fullSize".equals(size)) return 12;
if ("full-width".equals(size)) return 12;
if ("fullWidth".equals(size)) return 12;
if ("half".equals(size)) return 6;
if ("one-third".equals(size)) return 4;
if ("oneThird".equals(size)) return 4;
if ("two-thirds".equals(size)) return 8;
if ("twoThirds".equals(size)) return 8;
if ("one-fourth".equals(size)) return 3;
if ("oneFourth".equals(size)) return 3;
if ("three-fourths".equals(size)) return 9;
if ("threeFourths".equals(size)) return 9;
if (size.length()>2) {
size=size.replace("columns", "");
size=size.replace("column", "");
size=size.trim();
}
return new Integer(size).intValue();
}
/**
* Parse the expression token
*
* @param expressionToken
* @param delimiters
* @param validValues
* @param visibilityLevel (visible or hidden)
* @param display (block, inline or inline-block. default block)
* @return
*/
public static String evaluateExpression(
List expressionToken, String[] delimiters,
String[] validValues, String visibilityLevel, String display)
{
if ("visible".equals(visibilityLevel)) {
display = (display == null || display.trim().isEmpty()) ? "" : "-" + display;
}
else {
// hidden is not suffixed by -block, -inline or -inline-block
display="";
}
String finalExpr = "";
List _valid = Arrays.asList(validValues);
// Validate expression
//
// expression can be:
// ONE SIZE: [size]
// SIZE LIST: [size],[size],...,[size]
// RANGE FROM: ...[size] or [size]... to get range (only inclusive)
// RANGE BETWEEN: [size]...[size]
// 1. Only one size:
if(expressionToken.size() == 1)
{
finalExpr = " " + visibilityLevel + "-" + translateSize(expressionToken.get(0), true) + display;
}
// 2. Expression contains comma, so is a list of sizes
else if (expressionToken.contains(","))
{
for(String ex: expressionToken) {
if(",".equals(ex)) continue;
finalExpr += " " + visibilityLevel + "-" + translateSize(ex, true) + display + " ";
}
}
// 3. Expression is a range from
else if (expressionToken.size() == 2) {
if(expressionToken.get(0).equals("...")) {
if(!_valid.contains(expressionToken.get(1)))
throw new FacesException("Expression not valid. Valid syntax is ...[size] eg. ...sm . Valid sizes are [ xs, sm, md, lg ].");
List sR = getSizeRange("<=", translateSize(expressionToken.get(1), false));
for(String s: sR) {
finalExpr += " " + visibilityLevel + "-" + s + display + " ";
}
} else if(expressionToken.get(1).equals("...")) {
if(!_valid.contains(expressionToken.get(0)))
throw new FacesException("Expression not valid. Valid syntax is [size]... eg. sm... . Valid sizes are [ xs, sm, md, lg ].");
List sR = getSizeRange(">=", translateSize(expressionToken.get(0), false));
for(String s: sR) {
finalExpr += " " + visibilityLevel + "-" + s + display + " ";
}
} else {
throw new FacesException("Expression not valid. Valid syntax is ...[size] or [size]... . Valid sizes are [ xs, sm, md, lg ].");
}
}
// 4. Expression is in range
else if(expressionToken.size() == 3) {
// validation:
if(!_valid.contains(expressionToken.get(0)) && !"...".equals(expressionToken.get(1)) && !_valid.contains(expressionToken.get(2)))
throw new FacesException("Expression not valid. Valid syntax is [size]...[size] eg. xs...md . Valid sizes are [ xs, sm, md, lg ].");
List sR2 = getSizeRange(expressionToken.get(1), translateSize(expressionToken.get(0), false), translateSize(expressionToken.get(2), false));
for(String s: sR2) {
finalExpr += " " + visibilityLevel + "-" + s + display + " ";
}
}
// 5. Otherwise
else {
throw new FacesException("Expression not valid. See the docs for a list of possibile rules.");
}
return finalExpr;
}
/**
* Translate Sizes
* @param size
* @return
*/
public static String translateSize(String size, boolean strict) {
if (strict) {
boolean found=false;
for (String s: validValues) {
if (s.equals(size)) {
found=true;
break;
}
}
if (!found) {
throw new FacesException("The size of b:panel must be one of the values xs, sm, md, lg, tiny-screen, small-screen, medium-screen, or large-screen");
}
}
if(size.equalsIgnoreCase("xs") || size.equalsIgnoreCase("tiny-screen")) return "xs";
if(size.equalsIgnoreCase("sm") || size.equalsIgnoreCase("small-screen")) return "sm";
if(size.equalsIgnoreCase("md") || size.equalsIgnoreCase("medium-screen")) return "md";
if(size.equalsIgnoreCase("lg") || size.equalsIgnoreCase("large-screen")) return "lg";
return size;
}
/**
* Get the size ranges
* @param operation
* @param size
* @return
*/
private static List getSizeRange(String operation, String size)
{
return getSizeRange(operation, size, null);
}
private static List getSizeRange(String operation, String size1, String size2)
{
String[] orderSizes = { "xs", "sm", "md", "lg" };
List sizeRange = new ArrayList();
int itemIdx = Arrays.asList(orderSizes).indexOf(size1);
if(operation.equals(">")) {
for(int i = itemIdx + 1; i < orderSizes.length; i++) {
sizeRange.add(orderSizes[i]);
}
} else if(operation.equals(">=")) {
for(int i = itemIdx; i < orderSizes.length; i++) {
sizeRange.add(orderSizes[i]);
}
} else if(operation.equals("<")) {
for(int i = 0; i < itemIdx; i++) {
sizeRange.add(orderSizes[i]);
}
} else if(operation.equals("<=")) {
for(int i = 0; i <= itemIdx; i++) {
sizeRange.add(orderSizes[i]);
}
} else if(operation.equals("...") && size2 != null) {
int secondIdx = Arrays.asList(orderSizes).indexOf(size2);
if(secondIdx < itemIdx) {
int temp = secondIdx;
secondIdx = itemIdx;
itemIdx = temp;
}
for(int i = itemIdx; i <= secondIdx; i++) {
sizeRange.add(orderSizes[i]);
}
} else {
throw new FacesException("Operation not valid");
}
return sizeRange;
}
/**
* Tokenize string based on rules
*
* @param tokenString
* @param delimiters
* @return
*/
public static List wonderfulTokenizer(String tokenString, String[] delimiters) {
List tokens = new ArrayList();
String currentToken = "";
for(int i = 0; i < tokenString.length(); i++) {
String _currItem = String.valueOf(tokenString.charAt(i));
if(_currItem.trim().isEmpty()) continue;
String delimiterFound = "";
for(String d: delimiters) {
if(d.startsWith(_currItem)) {
if(d.length() > 1) {
if(d.equals(tokenString.substring(i, i + d.length()))) {
delimiterFound = d;
i = i + (d.length() - 1);
}
} else delimiterFound = d;
}
if(!delimiterFound.isEmpty()) break;
}
if(!delimiterFound.isEmpty()) {
if(!currentToken.isEmpty()) {
tokens.add(currentToken);
currentToken = "";
}
tokens.add(delimiterFound);
} else currentToken += _currItem;
}
if(!currentToken.isEmpty()) tokens.add(currentToken);
return tokens;
}
/**
* Create the responsive class combination
* @param r the component bearing the responsiveness attributes
* @return null, if there's no label-col-xx attribute
*/
public static String getResponsiveLabelClass(IResponsiveLabel r) {
if(!shouldRenderResponsiveClasses(r)) {
return "";
}
int colxs = sizeToInt(getSize(r, Sizes.xs));
int colsm = sizeToInt(getSize(r, Sizes.sm));
int colmd = sizeToInt(getSize(r, Sizes.md));
int collg = sizeToInt(getSize(r, Sizes.lg));
StringBuilder sb = new StringBuilder();
if (colmd > 0) {
sb.append("col-md-");
sb.append(colmd);
sb.append(' ');
}
if (colxs > 0) {
sb.append("col-xs-");
sb.append(colxs);
sb.append(' ');
}
if (colsm > 0) {
sb.append("col-sm-");
sb.append(colsm);
sb.append(' ');
}
if (collg > 0) {
sb.append("col-lg-");
sb.append(collg);
sb.append(' ');
}
if (sb.length() > 0) {
return sb.substring(0, sb.length() - 1);
}
return null;
}
/**
* Temporal and ugly hack to prevent responsive classes to be applied to inputs inside inline forms.
*
* This should be removed and the logic placed somewhere else.
*
* @return whether the component should render responsive classes
*/
private static boolean shouldRenderResponsiveClasses(Object r) {
// This method only checks inputs.
if(r instanceof UIComponent && r instanceof IResponsiveLabel) {
UIForm form = AJAXRenderer.getSurroundingForm((UIComponent) r, true);
if(form instanceof Form) {
if(((Form)form).isInline()) {
// If the form is inline, no responsive classes should be applied
return false;
}
}
}
return true;
}
// TEST METHOD
public static void main(String[] args)
{
List str = wonderfulTokenizer("sm...md", delimiters);
String finalExpr = evaluateExpression(str, delimiters, validValues, "hidden", "block");
for(String s: str) System.out.println(s);
System.out.println(finalExpr);
System.out.println("*******");
str = wonderfulTokenizer("sm...medium-screen", delimiters);
finalExpr = evaluateExpression(str, delimiters, validValues, "hidden", "block");
for(String s: str) System.out.println(s);
System.out.println(finalExpr);
System.out.println("*******");
str = wonderfulTokenizer("...md", delimiters);
finalExpr = evaluateExpression(str, delimiters, validValues, "hidden", "block");
for(String s: str) System.out.println(s);
System.out.println(finalExpr);
System.out.println("*******");
str = wonderfulTokenizer("xs,lg", delimiters);
finalExpr = evaluateExpression(str, delimiters, validValues, "hidden", "block");
for(String s: str) System.out.println(s);
System.out.println(finalExpr);
System.out.println("*******");
str = wonderfulTokenizer("md...", delimiters);
finalExpr = evaluateExpression(str, delimiters, validValues, "hidden", "block");
for(String s: str) System.out.println(s);
System.out.println(finalExpr);
}
}
