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.core.runtime.IStatus;

    27 import org.eclipse.core.runtime.Platform;

    28 import org.eclipse.core.runtime.Status;

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

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

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

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

    33 import org.w3c.css.css.DocumentParser;

    34 import org.w3c.css.css.StyleSheet;

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

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

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

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

    39 

    40 public class CssBuildValidator extends AbstractValidator {

    41     @Override

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

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

    44     }

    45 

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

    47         String language = "en";

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

    49         // svgtiny, atsc-tv, mobile, tv

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

    51         // handheld, print, projection, screen,

    52         // tty, tv, presentation

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

    54         // warnings)

    55 

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

    57         ApplContext ac = new ApplContext(language);

    58 

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

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

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

    62                 ac.setCssVersion(profile);

    63             } else {

    64                 ac.setProfile(profile);

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

    66             }

    67         } else {

    68             ac.setProfile(profile);

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

    70         }

    71 

    72         // medium to use

    73         ac.setMedium(medium);

    74 

    75         // HTML document

    76         try {

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

    78 

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

    80         } catch (Exception e) {

    81             Platform.getLog(Platform.getBundle("org.w3c.css")).log(new Status(IStatus.ERROR, "org.w3c.css", null, e));

    82         }

    83         return null;

    84     }

    85 

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

    87             boolean errorReport, IResource resource) throws Exception {

    88 

    89         if (styleSheet == null) {

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

    91         }

    92 

    93         styleSheet.findConflicts(ac);

    94         ValidationResult result = new ValidationResult();

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

    96         for (CssError cssError : errors) {

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

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

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

   100                 result.add(message);

   101             }

   102         }

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

   104         for (Warning warning : warnings) {

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

   106                     IMarker.SEVERITY_WARNING);

   107             result.add(message);

   108         }

   109         return result;

   110     }

   111 

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

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

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

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

   116         return message;

   117     }

   118 }