1 /*******************************************************************************

     2  * Copyright (c) 2009 Symbian Foundation and/or its subsidiary(-ies).

     3  * All rights reserved.

     4  * This component and the accompanying materials are made available

     5  * under the terms of the License "Eclipse Public License v1.0"

     6  * which accompanies this distribution, and is available

     7  * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8  *

     9  * Initial Contributors:

    10  * Symbian Foundation - initial contribution.

    11  * Contributors:

    12  * Description:

    13  * Overview:

    14  * Details:

    15  * Platforms/Drives/Compatibility:

    16  * Assumptions/Requirement/Pre-requisites:

    17  * Failures and causes:

    18  *******************************************************************************/

    19 package org.symbian.tools.wrttools.core.internal.validation;

    20 

    21 import java.io.IOException;

    22 

    23 import org.eclipse.core.resources.IMarker;

    24 import org.eclipse.core.resources.IResource;

    25 import org.eclipse.core.runtime.IProgressMonitor;

    26 import org.eclipse.wst.validation.AbstractValidator;

    27 import org.eclipse.wst.validation.ValidationResult;

    28 import org.eclipse.wst.validation.ValidationState;

    29 import org.eclipse.wst.validation.ValidatorMessage;

    30 import org.symbian.tools.wrttools.Activator;

    31 import org.w3c.css.css.DocumentParser;

    32 import org.w3c.css.css.StyleSheet;

    33 import org.w3c.css.parser.CssError;

    34 import org.w3c.css.properties.PropertiesLoader;

    35 import org.w3c.css.util.ApplContext;

    36 import org.w3c.css.util.Warning;

    37 

    38 public class CssBuildValidator extends AbstractValidator {

    39     @Override

    40     public ValidationResult validate(IResource resource, int kind, ValidationState state, IProgressMonitor monitor) {

    41         return main(resource.getLocationURI().toString(), resource);

    42     }

    43 

    44     public ValidationResult main(String uri, IResource resource) {

    45         String language = "en";

    46         String profile = "css3"; // css2, css21 (default), css3, svg, svgbasic,

    47         // svgtiny, atsc-tv, mobile, tv

    48         String medium = ""; // (default), aural, braille, embossed,

    49         // handheld, print, projection, screen,

    50         // tty, tv, presentation

    51         int warningLevel = 2; // -1 (no warning), 0, 1, 2 (default, all the

    52         // warnings)

    53 

    54         // first, we get the parameters and create an application context

    55         ApplContext ac = new ApplContext(language);

    56 

    57         if (profile != null && !"none".equals(profile)) {

    58             if ("css1".equals(profile) || "css2".equals(profile) || "css21".equals(profile) || "css3".equals(profile)

    59                     || "svg".equals(profile) || "svgbasic".equals(profile) || "svgtiny".equals(profile)) {

    60                 ac.setCssVersion(profile);

    61             } else {

    62                 ac.setProfile(profile);

    63                 ac.setCssVersion(PropertiesLoader.config.getProperty("defaultProfile"));

    64             }

    65         } else {

    66             ac.setProfile(profile);

    67             ac.setCssVersion(PropertiesLoader.config.getProperty("defaultProfile"));

    68         }

    69 

    70         // medium to use

    71         ac.setMedium(medium);

    72 

    73         // HTML document

    74         try {

    75             DocumentParser urlParser = new DocumentParser(ac, uri);

    76 

    77             return handleRequest(ac, uri, urlParser.getStyleSheet(), warningLevel, true, resource);

    78         } catch (Exception e) {

    79             Activator.log(e);

    80         }

    81         return null;

    82     }

    83 

    84     private ValidationResult handleRequest(ApplContext ac, String title, StyleSheet styleSheet, int warningLevel,

    85             boolean errorReport, IResource resource) throws Exception {

    86 

    87         if (styleSheet == null) {

    88             throw new IOException(ac.getMsg().getServletString("process") + " " + title);

    89         }

    90 

    91         styleSheet.findConflicts(ac);

    92         ValidationResult result = new ValidationResult();

    93         CssError[] errors = styleSheet.getErrors().getErrors();

    94         for (CssError cssError : errors) {

    95             String msg = cssError.getException().getLocalizedMessage();

    96             if (msg != null && msg.trim().length() > 0) {

    97                 ValidatorMessage message = createMessage(resource, cssError.getLine(), msg, IMarker.SEVERITY_WARNING);

    98                 result.add(message);

    99             }

   100         }

   101         Warning[] warnings = styleSheet.getWarnings().getWarnings();

   102         for (Warning warning : warnings) {

   103             ValidatorMessage message = createMessage(resource, warning.getLine(), warning.getWarningMessage(),

   104                     IMarker.SEVERITY_WARNING);

   105             result.add(message);

   106         }

   107         return result;

   108     }

   109 

   110     private ValidatorMessage createMessage(IResource resource, int line, String msg, int severity) {

   111         ValidatorMessage message = ValidatorMessage.create(msg, resource);

   112         message.setAttribute(IMarker.LINE_NUMBER, line);

   113         message.setAttribute(IMarker.SEVERITY, severity);

   114         return message;

   115     }

   116 }