1 /*
   2  * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.javadoc.internal.doclets.formats.html.markup;
  27 
  28 import java.io.*;
  29 import java.util.*;
  30 
  31 import jdk.javadoc.internal.doclets.toolkit.Configuration;
  32 import jdk.javadoc.internal.doclets.toolkit.Content;
  33 import jdk.javadoc.internal.doclets.toolkit.util.DocFile;
  34 import jdk.javadoc.internal.doclets.toolkit.util.DocPath;
  35 import jdk.javadoc.internal.doclets.toolkit.util.DocletConstants;
  36 import jdk.javadoc.internal.doclets.toolkit.util.MethodTypes;
  37 
  38 
  39 /**
  40  * Class for the Html format code generation.
  41  * Initializes PrintWriter with FileWriter, to enable print
  42  * related methods to generate the code to the named File through FileWriter.
  43  *
  44  *  <p><b>This is NOT part of any supported API.
  45  *  If you write code that depends on this, you do so at your own risk.
  46  *  This code and its internal interfaces are subject to change or
  47  *  deletion without notice.</b>
  48  *
  49  * @since 1.2
  50  * @author Atul M Dambalkar
  51  * @author Bhavesh Patel (Modified)
  52  */
  53 public class HtmlWriter {
  54 
  55     /**
  56      * The window title of this file
  57      */
  58     protected String winTitle;
  59 
  60     /**
  61      * The configuration
  62      */
  63     protected Configuration configuration;
  64 
  65     /**
  66      * The flag to indicate whether a member details list is printed or not.
  67      */
  68     protected boolean memberDetailsListPrinted;
  69 
  70     /**
  71      * Header for tables displaying packages and description..
  72      */
  73     protected final List<String> packageTableHeader;
  74 
  75     /**
  76      * Summary for use tables displaying class and package use.
  77      */
  78     protected final String useTableSummary;
  79 
  80     /**
  81      * Column header for class docs displaying Modifier and Type header.
  82      */
  83     protected final String modifierTypeHeader;
  84 
  85     public final Content overviewLabel;
  86 
  87     public final Content defaultPackageLabel;
  88 
  89     public final Content packageLabel;
  90 
  91     public final Content useLabel;
  92 
  93     public final Content prevLabel;
  94 
  95     public final Content nextLabel;
  96 
  97     public final Content prevclassLabel;
  98 
  99     public final Content nextclassLabel;
 100 
 101     public final Content summaryLabel;
 102 
 103     public final Content detailLabel;
 104 
 105     public final Content framesLabel;
 106 
 107     public final Content noframesLabel;
 108 
 109     public final Content treeLabel;
 110 
 111     public final Content classLabel;
 112 
 113     public final Content deprecatedLabel;
 114 
 115     public final Content deprecatedPhrase;
 116 
 117     public final Content allclassesLabel;
 118 
 119     public final Content allpackagesLabel;
 120 
 121     public final Content indexLabel;
 122 
 123     public final Content helpLabel;
 124 
 125     public final Content seeLabel;
 126 
 127     public final Content descriptionLabel;
 128 
 129     public final Content prevpackageLabel;
 130 
 131     public final Content nextpackageLabel;
 132 
 133     public final Content packagesLabel;
 134 
 135     public final Content methodDetailsLabel;
 136 
 137     public final Content annotationTypeDetailsLabel;
 138 
 139     public final Content fieldDetailsLabel;
 140 
 141     public final Content propertyDetailsLabel;
 142 
 143     public final Content constructorDetailsLabel;
 144 
 145     public final Content enumConstantsDetailsLabel;
 146 
 147     public final Content specifiedByLabel;
 148 
 149     public final Content overridesLabel;
 150 
 151     public final Content descfrmClassLabel;
 152 
 153     public final Content descfrmInterfaceLabel;
 154 
 155     private final Writer writer;
 156 
 157     protected Content script;
 158 
 159 
 160     /**
 161      * Constructor.
 162      *
 163      * @param path The directory path to be created for this file
 164      *             or null if none to be created.
 165      * @exception IOException Exception raised by the FileWriter is passed on
 166      * to next level.
 167      * @exception UnsupportedEncodingException Exception raised by the
 168      * OutputStreamWriter is passed on to next level.
 169      */
 170     public HtmlWriter(Configuration configuration, DocPath path)
 171             throws IOException, UnsupportedEncodingException {
 172         writer = DocFile.createFileForOutput(configuration, path).openWriter();
 173         this.configuration = configuration;
 174         this.memberDetailsListPrinted = false;
 175         packageTableHeader = new ArrayList<>();
 176         packageTableHeader.add(configuration.getText("doclet.Package"));
 177         packageTableHeader.add(configuration.getText("doclet.Description"));
 178         useTableSummary = configuration.getText("doclet.Use_Table_Summary",
 179                 configuration.getText("doclet.packages"));
 180         modifierTypeHeader = configuration.getText("doclet.0_and_1",
 181                 configuration.getText("doclet.Modifier"),
 182                 configuration.getText("doclet.Type"));
 183         overviewLabel = getResource("doclet.Overview");
 184         defaultPackageLabel = new StringContent(DocletConstants.DEFAULT_PACKAGE_NAME);
 185         packageLabel = getResource("doclet.Package");
 186         useLabel = getResource("doclet.navClassUse");
 187         prevLabel = getResource("doclet.Prev");
 188         nextLabel = getResource("doclet.Next");
 189         prevclassLabel = getNonBreakResource("doclet.Prev_Class");
 190         nextclassLabel = getNonBreakResource("doclet.Next_Class");
 191         summaryLabel = getResource("doclet.Summary");
 192         detailLabel = getResource("doclet.Detail");
 193         framesLabel = getResource("doclet.Frames");
 194         noframesLabel = getNonBreakResource("doclet.No_Frames");
 195         treeLabel = getResource("doclet.Tree");
 196         classLabel = getResource("doclet.Class");
 197         deprecatedLabel = getResource("doclet.navDeprecated");
 198         deprecatedPhrase = getResource("doclet.Deprecated");
 199         allclassesLabel = getNonBreakResource("doclet.All_Classes");
 200         allpackagesLabel = getNonBreakResource("doclet.All_Packages");
 201         indexLabel = getResource("doclet.Index");
 202         helpLabel = getResource("doclet.Help");
 203         seeLabel = getResource("doclet.See");
 204         descriptionLabel = getResource("doclet.Description");
 205         prevpackageLabel = getNonBreakResource("doclet.Prev_Package");
 206         nextpackageLabel = getNonBreakResource("doclet.Next_Package");
 207         packagesLabel = getResource("doclet.Packages");
 208         methodDetailsLabel = getResource("doclet.Method_Detail");
 209         annotationTypeDetailsLabel = getResource("doclet.Annotation_Type_Member_Detail");
 210         fieldDetailsLabel = getResource("doclet.Field_Detail");
 211         propertyDetailsLabel = getResource("doclet.Property_Detail");
 212         constructorDetailsLabel = getResource("doclet.Constructor_Detail");
 213         enumConstantsDetailsLabel = getResource("doclet.Enum_Constant_Detail");
 214         specifiedByLabel = getResource("doclet.Specified_By");
 215         overridesLabel = getResource("doclet.Overrides");
 216         descfrmClassLabel = getResource("doclet.Description_From_Class");
 217         descfrmInterfaceLabel = getResource("doclet.Description_From_Interface");
 218     }
 219 
 220     public void write(Content c) throws IOException {
 221         c.write(writer, true);
 222     }
 223 
 224     public void close() throws IOException {
 225         writer.close();
 226     }
 227 
 228     /**
 229      * Get the configuration string as a content.
 230      *
 231      * @param key the key to look for in the configuration file
 232      * @return a content tree for the text
 233      */
 234     public Content getResource(String key) {
 235         return configuration.getResource(key);
 236     }
 237 
 238     /**
 239      * Get the configuration string as a content, replacing spaces
 240      * with non-breaking spaces.
 241      *
 242      * @param key the key to look for in the configuration file
 243      * @return a content tree for the text
 244      */
 245     public Content getNonBreakResource(String key) {
 246         String text = configuration.getText(key);
 247         Content c = configuration.newContent();
 248         int start = 0;
 249         int p;
 250         while ((p = text.indexOf(" ", start)) != -1) {
 251             c.addContent(text.substring(start, p));
 252             c.addContent(RawHtml.nbsp);
 253             start = p + 1;
 254         }
 255         c.addContent(text.substring(start));
 256         return c;
 257     }
 258 
 259     /**
 260      * Get the configuration string as a content.
 261      *
 262      * @param key the key to look for in the configuration file
 263      * @param o   string or content argument added to configuration text
 264      * @return a content tree for the text
 265      */
 266     public Content getResource(String key, Object o) {
 267         return configuration.getResource(key, o);
 268     }
 269 
 270     /**
 271      * Get the configuration string as a content.
 272      *
 273      * @param key the key to look for in the configuration file
 274      * @param o1  string or content argument added to configuration text
 275      * @param o2  string or content argument added to configuration text
 276      * @return a content tree for the text
 277      */
 278     public Content getResource(String key, Object o0, Object o1) {
 279         return configuration.getResource(key, o0, o1);
 280     }
 281 
 282     /**
 283      * Returns an HtmlTree for the SCRIPT tag.
 284      *
 285      * @return an HtmlTree for the SCRIPT tag
 286      */
 287     protected HtmlTree getWinTitleScript(){
 288         HtmlTree script = HtmlTree.SCRIPT();
 289         if(winTitle != null && winTitle.length() > 0) {
 290             String scriptCode = "<!--" + DocletConstants.NL +
 291                     "    try {" + DocletConstants.NL +
 292                     "        if (location.href.indexOf('is-external=true') == -1) {" + DocletConstants.NL +
 293                     "            parent.document.title=\"" + escapeJavaScriptChars(winTitle) + "\";" + DocletConstants.NL +
 294                     "        }" + DocletConstants.NL +
 295                     "    }" + DocletConstants.NL +
 296                     "    catch(err) {" + DocletConstants.NL +
 297                     "    }" + DocletConstants.NL +
 298                     "//-->" + DocletConstants.NL;
 299             RawHtml scriptContent = new RawHtml(scriptCode);
 300             script.addContent(scriptContent);
 301         }
 302         return script;
 303     }
 304 
 305     /**
 306      * Returns a String with escaped special JavaScript characters.
 307      *
 308      * @param s String that needs to be escaped
 309      * @return a valid escaped JavaScript string
 310      */
 311     private static String escapeJavaScriptChars(String s) {
 312         StringBuilder sb = new StringBuilder();
 313         for (int i = 0; i < s.length(); i++) {
 314             char ch = s.charAt(i);
 315             switch (ch) {
 316                 case '\b':
 317                     sb.append("\\b");
 318                     break;
 319                 case '\t':
 320                     sb.append("\\t");
 321                     break;
 322                 case '\n':
 323                     sb.append("\\n");
 324                     break;
 325                 case '\f':
 326                     sb.append("\\f");
 327                     break;
 328                 case '\r':
 329                     sb.append("\\r");
 330                     break;
 331                 case '"':
 332                     sb.append("\\\"");
 333                     break;
 334                 case '\'':
 335                     sb.append("\\\'");
 336                     break;
 337                 case '\\':
 338                     sb.append("\\\\");
 339                     break;
 340                 default:
 341                     if (ch < 32 || ch >= 127) {
 342                         sb.append(String.format("\\u%04X", (int)ch));
 343                     } else {
 344                         sb.append(ch);
 345                     }
 346                     break;
 347             }
 348         }
 349         return sb.toString();
 350     }
 351 
 352     /**
 353      * Returns a content tree for the SCRIPT tag for the main page(index.html).
 354      *
 355      * @return a content for the SCRIPT tag
 356      */
 357     protected Content getFramesJavaScript() {
 358         HtmlTree script = HtmlTree.SCRIPT();
 359         String scriptCode = DocletConstants.NL +
 360                 "    targetPage = \"\" + window.location.search;" + DocletConstants.NL +
 361                 "    if (targetPage != \"\" && targetPage != \"undefined\")" + DocletConstants.NL +
 362                 "        targetPage = targetPage.substring(1);" + DocletConstants.NL +
 363                 "    if (targetPage.indexOf(\":\") != -1 || (targetPage != \"\" && !validURL(targetPage)))" + DocletConstants.NL +
 364                 "        targetPage = \"undefined\";" + DocletConstants.NL +
 365                 "    function validURL(url) {" + DocletConstants.NL +
 366                 "        try {" + DocletConstants.NL +
 367                 "            url = decodeURIComponent(url);" + DocletConstants.NL +
 368                 "        }" + DocletConstants.NL +
 369                 "        catch (error) {" + DocletConstants.NL +
 370                 "            return false;" + DocletConstants.NL +
 371                 "        }" + DocletConstants.NL +
 372                 "        var pos = url.indexOf(\".html\");" + DocletConstants.NL +
 373                 "        if (pos == -1 || pos != url.length - 5)" + DocletConstants.NL +
 374                 "            return false;" + DocletConstants.NL +
 375                 "        var allowNumber = false;" + DocletConstants.NL +
 376                 "        var allowSep = false;" + DocletConstants.NL +
 377                 "        var seenDot = false;" + DocletConstants.NL +
 378                 "        for (var i = 0; i < url.length - 5; i++) {" + DocletConstants.NL +
 379                 "            var ch = url.charAt(i);" + DocletConstants.NL +
 380                 "            if ('a' <= ch && ch <= 'z' ||" + DocletConstants.NL +
 381                 "                    'A' <= ch && ch <= 'Z' ||" + DocletConstants.NL +
 382                 "                    ch == '$' ||" + DocletConstants.NL +
 383                 "                    ch == '_' ||" + DocletConstants.NL +
 384                 "                    ch.charCodeAt(0) > 127) {" + DocletConstants.NL +
 385                 "                allowNumber = true;" + DocletConstants.NL +
 386                 "                allowSep = true;" + DocletConstants.NL +
 387                 "            } else if ('0' <= ch && ch <= '9'" + DocletConstants.NL +
 388                 "                    || ch == '-') {" + DocletConstants.NL +
 389                 "                if (!allowNumber)" + DocletConstants.NL +
 390                 "                     return false;" + DocletConstants.NL +
 391                 "            } else if (ch == '/' || ch == '.') {" + DocletConstants.NL +
 392                 "                if (!allowSep)" + DocletConstants.NL +
 393                 "                    return false;" + DocletConstants.NL +
 394                 "                allowNumber = false;" + DocletConstants.NL +
 395                 "                allowSep = false;" + DocletConstants.NL +
 396                 "                if (ch == '.')" + DocletConstants.NL +
 397                 "                     seenDot = true;" + DocletConstants.NL +
 398                 "                if (ch == '/' && seenDot)" + DocletConstants.NL +
 399                 "                     return false;" + DocletConstants.NL +
 400                 "            } else {" + DocletConstants.NL +
 401                 "                return false;"+ DocletConstants.NL +
 402                 "            }" + DocletConstants.NL +
 403                 "        }" + DocletConstants.NL +
 404                 "        return true;" + DocletConstants.NL +
 405                 "    }" + DocletConstants.NL;
 406         RawHtml scriptContent = new RawHtml(scriptCode);
 407         script.addContent(scriptContent);
 408         return script;
 409     }
 410 
 411     /**
 412      * Returns an HtmlTree for the BODY tag.
 413      *
 414      * @param includeScript  set true if printing windowtitle script
 415      * @param title title for the window
 416      * @return an HtmlTree for the BODY tag
 417      */
 418     public HtmlTree getBody(boolean includeScript, String title) {
 419         HtmlTree body = new HtmlTree(HtmlTag.BODY);
 420         // Set window title string which is later printed
 421         this.winTitle = title;
 422         // Don't print windowtitle script for overview-frame, allclasses-frame
 423         // and package-frame
 424         if (includeScript) {
 425             this.script = getWinTitleScript();
 426             body.addContent(script);
 427             Content noScript = HtmlTree.NOSCRIPT(
 428                     HtmlTree.DIV(getResource("doclet.No_Script_Message")));
 429             body.addContent(noScript);
 430         }
 431         return body;
 432     }
 433 
 434     /**
 435      * Generated javascript variables for the document.
 436      *
 437      * @param typeMap map comprising of method and type relationship
 438      * @param methodTypes set comprising of all methods types for this class
 439      */
 440     public void generateMethodTypesScript(Map<String,Integer> typeMap,
 441             Set<MethodTypes> methodTypes) {
 442         String sep = "";
 443         StringBuilder vars = new StringBuilder("var methods = {");
 444         for (Map.Entry<String,Integer> entry : typeMap.entrySet()) {
 445             vars.append(sep);
 446             sep = ",";
 447             vars.append("\"")
 448                     .append(entry.getKey())
 449                     .append("\":")
 450                     .append(entry.getValue());
 451         }
 452         vars.append("};").append(DocletConstants.NL);
 453         sep = "";
 454         vars.append("var tabs = {");
 455         for (MethodTypes entry : methodTypes) {
 456             vars.append(sep);
 457             sep = ",";
 458             vars.append(entry.value())
 459                     .append(":")
 460                     .append("[")
 461                     .append("\"")
 462                     .append(entry.tabId())
 463                     .append("\"")
 464                     .append(sep)
 465                     .append("\"")
 466                     .append(configuration.getText(entry.resourceKey()))
 467                     .append("\"]");
 468         }
 469         vars.append("};")
 470                 .append(DocletConstants.NL);
 471         addStyles(HtmlStyle.altColor, vars);
 472         addStyles(HtmlStyle.rowColor, vars);
 473         addStyles(HtmlStyle.tableTab, vars);
 474         addStyles(HtmlStyle.activeTableTab, vars);
 475         script.addContent(new RawHtml(vars.toString()));
 476     }
 477 
 478     /**
 479      * Adds javascript style variables to the document.
 480      *
 481      * @param style style to be added as a javascript variable
 482      * @param vars variable string to which the style variable will be added
 483      */
 484     public void addStyles(HtmlStyle style, StringBuilder vars) {
 485         vars.append("var ").append(style).append(" = \"").append(style)
 486                 .append("\";").append(DocletConstants.NL);
 487     }
 488 
 489     /**
 490      * Returns an HtmlTree for the TITLE tag.
 491      *
 492      * @return an HtmlTree for the TITLE tag
 493      */
 494     public HtmlTree getTitle() {
 495         HtmlTree title = HtmlTree.TITLE(new StringContent(winTitle));
 496         return title;
 497     }
 498 
 499     public String codeText(String text) {
 500         return "<code>" + text + "</code>";
 501     }
 502 
 503     /**
 504      * Return "&#38;nbsp;", non-breaking space.
 505      */
 506     public Content getSpace() {
 507         return RawHtml.nbsp;
 508     }
 509 
 510     /*
 511      * Returns a header for Modifier and Type column of a table.
 512      */
 513     public String getModifierTypeHeader() {
 514         return modifierTypeHeader;
 515     }
 516 }