IDEA-346213 QuickDoc: improve wrapping of long qualified names and URLs

GitOrigin-RevId: c808dd4c333636dc9dc36e01b3afa57f3037ec0c
2026-01-07 05:09:37 +07:00 · 2024-02-15 10:48:47 +01:00
parent 8470728a07
commit a028674bdb
20 changed files with 260 additions and 66 deletions
--- a/java/java-tests/testData/codeInsight/documentation/EscapingLink.html
+++ b/java/java-tests/testData/codeInsight/documentation/EscapingLink.html
@@ -15,8 +15,8 @@
 <!--   -->
 </a>
 <ul class="blockListLast">
-<h3><a href="psi_element://com.jetbrains.GenericClass"><code>com.jetbrains.GenericClass</code></a></h3>
-<pre>public&nbsp;void&nbsp;genericMethod(java.lang.Class&lt;?&gt;&nbsp;clazz)</pre>
+<h3><a href="psi_element://com.jetbrains.GenericClass"><code>com.<wbr>jetbrains.<wbr>GenericClass</code></a></h3>
+<pre>public&nbsp;void&nbsp;genericMethod(java.<wbr>lang.<wbr>Class&lt;?&gt;&nbsp;clazz)</pre>
 <div class="block">javadoc</div>
 </li>
 </ul>
--- a/java/java-tests/testData/codeInsight/documentation/LinkBetweenMethods.html
+++ b/java/java-tests/testData/codeInsight/documentation/LinkBetweenMethods.html
@@ -14,7 +14,7 @@
 </style><div class='content'><a name="m1--">
 <!--   -->
 </a>
-<h3><a href="psi_element://com.jetbrains.LinkBetweenMethods"><code>com.jetbrains.LinkBetweenMethods</code></a></h3>
+<h3><a href="psi_element://com.jetbrains.LinkBetweenMethods"><code>com.<wbr>jetbrains.<wbr>LinkBetweenMethods</code></a></h3>
 <pre>public&nbsp;void&nbsp;m1()</pre>
 <div class="block"><a href="psi_element://com.jetbrains.LinkBetweenMethods#m2()"><code>m2()</code></a></div>
 </li>
--- a/java/java-tests/testData/codeInsight/documentation/LinkToPackageSummaryWithReference.html
+++ b/java/java-tests/testData/codeInsight/documentation/LinkToPackageSummaryWithReference.html
@@ -13,7 +13,7 @@
  }
 </style><div class='content'><!-- ======== START OF CLASS DATA ======== -->
 <div class="header">
-<div class="subTitle">com.jetbrains</div>
+<div class="subTitle">com.<wbr>jetbrains</div>
 <h2 title="Interface SimpleInterface" class="title">Interface SimpleInterface</h2>
 </div>
 <div class="contentContainer">
--- a/java/java-tests/testData/codeInsight/documentation/LinkWithReference.html
+++ b/java/java-tests/testData/codeInsight/documentation/LinkWithReference.html
@@ -13,21 +13,21 @@
  }
 </style><div class='content'><!-- ======== START OF CLASS DATA ======== -->
 <div class="header">
-<div class="subTitle">com.jetbrains</div>
+<div class="subTitle">com.<wbr>jetbrains</div>
 <h2 title="Class ClassWithRefLink" class="title">Class ClassWithRefLink</h2>
 </div>
 <div class="contentContainer">
 <ul class="inheritance">
-<li>java.lang.Object</li>
+<li>java.<wbr>lang.<wbr>Object</li>
 <li>
 <ul class="inheritance">
-<li>com.jetbrains.ClassWithRefLink</li>
+<li>com.<wbr>jetbrains.<wbr>ClassWithRefLink</li>
 </ul>
 </li>
 </ul>
 <DL><br>
 <pre>public class <span class="typeNameLabel">ClassWithRefLink</span>
-extends java.lang.Object</pre>
+extends java.<wbr>lang.<wbr>Object</pre>
 <div class="block"><a href="psi_element://com.jetbrains.Test###someRef">link</a></div>
 </li>
 </ul>
--- a/java/java-tests/testData/codeInsight/documentation/ReferenceStyleDoesntMatchBytecodeVersion.html
+++ b/java/java-tests/testData/codeInsight/documentation/ReferenceStyleDoesntMatchBytecodeVersion.html
@@ -15,8 +15,8 @@
 <!--   -->
 </a>
 <ul class="blockListLast">
-<h3><a href="psi_element://com.jetbrains.TestAnnotation"><code>com.jetbrains.TestAnnotation</code></a></h3>
-<pre>public abstract&nbsp;java.lang.String&nbsp;param</pre>
+<h3><a href="psi_element://com.jetbrains.TestAnnotation"><code>com.<wbr>jetbrains.<wbr>TestAnnotation</code></a></h3>
+<pre>public abstract&nbsp;java.<wbr>lang.<wbr>String&nbsp;param</pre>
 <div class="block">Some info and a <a href="psi_element://com.jetbrains.Test">link</a></div>
 </li>
 </ul>
--- a/java/java-tests/testData/codeInsight/javadocIG/documentationForJdkClassWithReferencesToClassesFromJavaLang.html
+++ b/java/java-tests/testData/codeInsight/javadocIG/documentationForJdkClassWithReferencesToClassesFromJavaLang.html
@@ -1,8 +1,8 @@
-<html><head><base href="placeholder"></head><body><div class="bottom"><icon src="AllIcons.Nodes.Class">&nbsp;<a href="psi_element://java.util.List"><code><span style="color:#000000;">java.util.List</span><span style="">&lt;</span><span style="color:#20999d;">E</span><span style="">&gt;</span></code></a></div><div class='definition-separated'><pre><span style="color:#808000;">@</span><span style="color:#808000;">Contract</span><span style="">(</span><span style="">pure</span><span style=""> = </span><span style="color:#000080;font-weight:bold;">true</span><span style="">)</span><a href="external.annotations"><icon src="AllIcons.Ide.External_link_arrow"></a>&nbsp;
+<html><head><base href="placeholder"></head><body><div class="bottom"><icon src="AllIcons.Nodes.Class">&nbsp;<a href="psi_element://java.util.List"><code><span style="color:#000000;">java.<wbr>util.<wbr>List</span><span style="">&lt;</span><span style="color:#20999d;">E</span><span style="">&gt;</span></code></a></div><div class='definition-separated'><pre><span style="color:#808000;">@</span><span style="color:#808000;">Contract</span><span style="">(</span><span style="">pure</span><span style=""> = </span><span style="color:#000080;font-weight:bold;">true</span><span style="">)</span><a href="external.annotations"><icon src="AllIcons.Ide.External_link_arrow"></a>&nbsp;
 <span style="color:#000080;font-weight:bold;">public abstract</span>&nbsp;<span style="color:#000080;font-weight:bold;">boolean</span>&nbsp;<span style="color:#000000;">contains</span><span style="">(</span><br>    <a href="psi_element://java.lang.Object"><code><span style="color:#000000;">Object</span></code></a>&nbsp;<span style="color:#000000;">o</span><br><span style="">)</span></pre></div><div class='content'>
  <p>Returns <tt>true</tt> if this list contains the specified element.
  More formally, returns <tt>true</tt> if and only if this list contains
  at least one element <tt>e</tt> such that
-  <tt>(o==null&nbsp;?&nbsp;e==null&nbsp;:&nbsp;o.equals(e))</tt>.
+  <tt>(o==null&nbsp;?&nbsp;e==null&nbsp;:&nbsp;o.<wbr>equals(e))</tt>.
 
  </div><table class='sections'><tr><td valign='top' class='section'><p>Overrides:</td><td valign='top'><p><a href="psi_element://java.util.Collection#contains(java.lang.Object)"><code><span style="color:#000000;">contains</span></code></a> in interface <a href="psi_element://java.util.Collection"><code><span style="color:#000000;">Collection</span></code></a></td><tr><td valign='top' class='section'><p>Params:</td><td valign='top'><code><span style="color:#000000;">o</span></code> &ndash; element whose presence in this list is to be tested  </td><tr><td valign='top' class='section'><p>Returns:</td><td valign='top'><p><tt>true</tt> if this list contains the specified element  </td><tr><td valign='top' class='section'><p>Throws:</td><td valign='top'><p><a href="psi_element://java.lang.ClassCastException"><code><span style="color:#0000ff;">ClassCastException</span></code></a> &ndash; if the type of the specified element          is incompatible with this list  (<a href="psi_element://java.util.Collection###optional-restrictions">optional</a>)  <p><a href="psi_element://java.lang.NullPointerException"><code><span style="color:#0000ff;">NullPointerException</span></code></a> &ndash; if the specified element is null and this          list does not permit null elements  (<a href="psi_element://java.util.Collection###optional-restrictions">optional</a>)</td></table><div class="bottom"><icon src="AllIcons.Nodes.PpLibFolder"/>&nbsp;&lt; java 1.7 &gt;</div>
--- a/java/java-tests/testData/codeInsight/javadocIG/documentationForUncheckedExceptionsInSupers.html
+++ b/java/java-tests/testData/codeInsight/javadocIG/documentationForUncheckedExceptionsInSupers.html
@@ -1,9 +1,9 @@
 <html><head><base href="placeholder"></head><body><div class="bottom"><icon src="AllIcons.Nodes.Class">&nbsp;<a href="psi_element://My"><code><span style="color:#000000;">My</span></code></a></div><div class='definition-separated'><pre><i><span style="color:#808000;">@</span><a href="psi_element://org.jetbrains.annotations.Contract"><code><span style="color:#808000;">Contract</span></code></a><span style="">(</span><span style="">pure</span><span style=""> = </span><span style="color:#000080;font-weight:bold;">true</span><span style="">)</span></i><sup><font color="808080" size="3"><i>i</i></font></sup><a href="inferred.annotations"><icon src="AllIcons.Ide.External_link_arrow"></a>&nbsp;
 <span style="color:#000080;font-weight:bold;">boolean</span>&nbsp;<span style="color:#000000;">contains</span><span style="">(</span><br>    <a href="psi_element://java.lang.Object"><code><span style="color:#000000;">Object</span></code></a>&nbsp;<span style="color:#000000;">o</span><br><span style="">)</span>
-<span style="color:#000080;font-weight:bold;">throws</span>&nbsp;<span style="color:#ff0000">IOException</span></pre></div><table class='sections'><tr><td valign='top' class='section'><p>From interface:</td><td valign='top'><p><a href="psi_element://java.util.Collection"><code><span style="color:#000000;">java.util.Collection</span></code></a><br>
+<span style="color:#000080;font-weight:bold;">throws</span>&nbsp;<span style="color:#ff0000">IOException</span></pre></div><table class='sections'><tr><td valign='top' class='section'><p>From interface:</td><td valign='top'><p><a href="psi_element://java.util.Collection"><code><span style="color:#000000;">java.<wbr>util.<wbr>Collection</span></code></a><br>
  Returns <tt>true</tt> if this collection contains the specified element.
  More formally, returns <tt>true</tt> if and only if this collection
  contains at least one element <tt>e</tt> such that
-  <tt>(o==null&nbsp;?&nbsp;e==null&nbsp;:&nbsp;o.equals(e))</tt>.
+  <tt>(o==null&nbsp;?&nbsp;e==null&nbsp;:&nbsp;o.<wbr>equals(e))</tt>.
 
  </td><tr><td valign='top' class='section'><p>Overrides:</td><td valign='top'><p><a href="psi_element://java.util.Collection#contains(java.lang.Object)"><code><span style="color:#000000;">contains</span></code></a> in interface <a href="psi_element://java.util.Collection"><code><span style="color:#000000;">Collection</span></code></a><br><a href="psi_element://I#contains(java.lang.Object)"><code><span style="color:#000000;">contains</span></code></a> in interface <a href="psi_element://I"><code><span style="color:#000000;">I</span></code></a></td><tr><td valign='top' class='section'><p>Params:</td><td valign='top'><code><span style="color:#000000;">o</span></code> &ndash; element whose presence in this collection is to be tested  </td><tr><td valign='top' class='section'><p>Returns:</td><td valign='top'><p><tt>true</tt> if this collection contains the specified          element  </td><tr><td valign='top' class='section'><p>Throws:</td><td valign='top'><p><a href="psi_element://java.lang.NullPointerException"><code><span style="color:#0000ff;">NullPointerException</span></code></a> &ndash; before if the specified element is null and this          collection does not permit null elements          (<a href="psi_element://My###optional-restrictions">optional</a>) after<p><span style="color:#ff0000">IOException</span></td></table>
--- a/java/java-tests/testData/codeInsight/javadocIG/dumbMode.html
+++ b/java/java-tests/testData/codeInsight/javadocIG/dumbMode.html
@@ -1,4 +1,4 @@
 <html><head><base href="placeholder"></head><body><div class='definition-separated'><pre><span style="color:#000080;font-weight:bold;">class</span> <span style="color:#000000;">C</span></pre></div><div class='content'>
  <p>some text
 
-  </div><table class='sections'><tr><td valign='top' class='section'><p>See Also:</td><td valign='top'><p>System.out</td></table>
+  </div><table class='sections'><tr><td valign='top' class='section'><p>See Also:</td><td valign='top'><p>System.<wbr>out</td></table>
--- a/java/java-tests/testData/codeInsight/javadocIG/packageInfoWithCopyright/packageInfo.html
+++ b/java/java-tests/testData/codeInsight/javadocIG/packageInfoWithCopyright/packageInfo.html
@@ -1,3 +1,3 @@
 <div class="bottom"><icon src="AllIcons.Nodes.Package">&nbsp;<code>packageInfoWithCopyright</code></div><div class='content'>
-  <p>This package contains nothing but package-info.java
+  <p>This package contains nothing but package-info.<wbr>java
 </div>
--- a/java/java-tests/testData/codeInsight/javadocIG/reflectConstructor.html
+++ b/java/java-tests/testData/codeInsight/javadocIG/reflectConstructor.html
@@ -1,5 +1,5 @@
-<html><head><base href="placeholder"></head><body><div class="bottom"><icon src="AllIcons.Nodes.Class">&nbsp;<a href="psi_element://java.lang.Class"><code><span style="color:#000000;">java.lang.Class</span><span style="">&lt;</span><span style="color:#20999d;">T</span><span style="">&gt;</span></code></a></div><div class='definition-separated'><pre><span style="color:#ff0000">@<span style="color:#808000;">CallerSensitive</span></span>&nbsp;
+<html><head><base href="placeholder"></head><body><div class="bottom"><icon src="AllIcons.Nodes.Class">&nbsp;<a href="psi_element://java.lang.Class"><code><span style="color:#000000;">java.<wbr>lang.<wbr>Class</span><span style="">&lt;</span><span style="color:#20999d;">T</span><span style="">&gt;</span></code></a></div><div class='definition-separated'><pre><span style="color:#ff0000">@<span style="color:#808000;">CallerSensitive</span></span>&nbsp;
 <span style="color:#808000;">@</span><span style="color:#808000;">NotNull</span><a href="external.annotations"><icon src="AllIcons.Ide.External_link_arrow"></a>&nbsp;
 <span style="color:#808000;">@</span><span style="color:#808000;">Contract</span><span style="">(</span><span style="">pure</span><span style=""> = </span><span style="color:#000080;font-weight:bold;">true</span><span style="">)</span><a href="external.annotations"><icon src="AllIcons.Ide.External_link_arrow"></a>&nbsp;
-<span style="color:#000080;font-weight:bold;">public</span>&nbsp;<a href="psi_element://java.lang.reflect.Constructor"><code><span style="color:#000000;">java.lang.reflect.Constructor</span></code></a><span style="">&lt;</span><span style="">?</span><span style="">&gt;</span><span style="">[]</span>&nbsp;<span style="color:#000000;">getDeclaredConstructors</span><span style="">(</span><span style="">)</span>
+<span style="color:#000080;font-weight:bold;">public</span>&nbsp;<a href="psi_element://java.lang.reflect.Constructor"><code><span style="color:#000000;">java.<wbr>lang.<wbr>reflect.<wbr>Constructor</span></code></a><span style="">&lt;</span><span style="">?</span><span style="">&gt;</span><span style="">[]</span>&nbsp;<span style="color:#000000;">getDeclaredConstructors</span><span style="">(</span><span style="">)</span>
 <span style="color:#000080;font-weight:bold;">throws</span>&nbsp;<a href="psi_element://java.lang.SecurityException"><code><span style="color:#000000;">SecurityException</span></code></a></pre></div><table class='sections'><tr><td valign='top' class='section'><p>Throws:</td><td valign='top'><p><a href="psi_element://java.lang.SecurityException"><code><span style="color:#0000ff;">SecurityException</span></code></a></td></table><div class="bottom"><icon src="AllIcons.Nodes.PpLibFolder"/>&nbsp;&lt; java 10 &gt;</div>
--- a/java/java-tests/testData/codeInsight/javadocIG/syntheticEnumValues.html
+++ b/java/java-tests/testData/codeInsight/javadocIG/syntheticEnumValues.html
@@ -4,8 +4,8 @@
  type, in the order they're declared.  This method may be
  used to iterate over the constants as follows:
  <pre>
-     for(E c : E.values())
-         System.out.println(c);
+     for(E c : E.<wbr>values())
+         System.<wbr>out.<wbr>println(c);
  </pre>
 
  </div><table class='sections'><tr><td valign='top' class='section'><p>Returns:</td><td valign='top'><p>an array containing the constants of this enum  type, in the order they're declared</td></table>
--- a/java/java-tests/testSrc/com/intellij/java/codeInsight/JavaDocumentationTest.kt
+++ b/java/java-tests/testSrc/com/intellij/java/codeInsight/JavaDocumentationTest.kt
@@ -289,7 +289,7 @@ class JavaDocumentationTest : LightJavaCodeInsightFixtureTestCase() {

    val actual = JavaExternalDocumentationTest.getDocumentationText(myFixture.project, input)

-    val expected = "<html><div class='content'>Candidates for method call <b>s.regionMatches()</b> are:<br>" +
+    val expected = "<html><div class='content'>Candidates for method call <b>s.<wbr>regionMatches()</b> are:<br>" +
                   "<br>" +
                   "&nbsp;&nbsp;<a href=\"psi_element://java.lang.String#regionMatches(int, java.lang.String, int, int)\">boolean regionMatches(int, String, int, int)</a><br>" +
                   "&nbsp;&nbsp;<a href=\"psi_element://java.lang.String#regionMatches(boolean, int, java.lang.String, int, int)\">boolean regionMatches(boolean, int, String, int, int)</a><br>" +
@@ -309,7 +309,7 @@ class JavaDocumentationTest : LightJavaCodeInsightFixtureTestCase() {

    val documentationManager = DocumentationManager.getInstance(myFixture.project)
    JavaExternalDocumentationTest.getDocumentationText(myFixture.project, input) { component ->
-      val expected = "<html><div class='content'>Candidates for method call <b>s.regionMatches()</b> are:<br>" +
+      val expected = "<html><div class='content'>Candidates for method call <b>s.<wbr>regionMatches()</b> are:<br>" +
                     "<br>" +
                     "&nbsp;&nbsp;<a href=\"psi_element://java.lang.String#regionMatches(int, java.lang.String, int, int)\">boolean regionMatches(int, String, int, int)</a><br>" +
                     "&nbsp;&nbsp;<a href=\"psi_element://java.lang.String#regionMatches(boolean, int, java.lang.String, int, int)\">boolean regionMatches(boolean, int, String, int, int)</a><br>" +
--- a/platform/lang-impl/src/com/intellij/codeInsight/documentation/DocumentationEditorPane.java
+++ b/platform/lang-impl/src/com/intellij/codeInsight/documentation/DocumentationEditorPane.java
@@ -81,10 +81,11 @@ public abstract class DocumentationEditorPane extends JEditorPane implements Dis
    }
    setBackground(BACKGROUND_COLOR);
    HTMLEditorKit editorKit = new HTMLEditorKitBuilder()
-      .replaceViewFactoryExtensions(DocumentationHtmlUtil.getIconsExtension(iconResolver),
+      .replaceViewFactoryExtensions(getIconsExtension(iconResolver),
                                    Extensions.BASE64_IMAGES,
                                    Extensions.INLINE_VIEW_EX,
-                                    Extensions.FIT_TO_WIDTH_IMAGES)
+                                    Extensions.FIT_TO_WIDTH_IMAGES,
+                                    Extensions.WBR_SUPPORT)
      .withFontResolver(EditorCssFontResolver.getGlobalInstance()).build();
    updateDocumentationPaneDefaultCssRules(editorKit);

--- a/platform/lang-impl/src/com/intellij/codeInsight/documentation/DocumentationHtmlUtil.kt
+++ b/platform/lang-impl/src/com/intellij/codeInsight/documentation/DocumentationHtmlUtil.kt
@@ -16,6 +16,7 @@ import com.intellij.util.ui.JBUI
 import com.intellij.util.ui.UIUtil
 import org.intellij.lang.annotations.Language
 import org.jetbrains.annotations.ApiStatus
+import org.jetbrains.annotations.Contract
 import java.awt.Color
 import java.util.function.Function
 import javax.swing.Icon
@@ -79,6 +80,7 @@ object DocumentationHtmlUtil {
    val contentSpacing = scale(contentSpacing)
    val contentInnerPadding = scale(contentInnerPadding)

+    @Suppress("CssUnusedSymbol")
    @Language("CSS")
    val result = ContainerUtil.newLinkedList(
      """
@@ -116,4 +118,115 @@ object DocumentationHtmlUtil {
    result.addAll(getDefaultFormattingStyles(contentSpacing))
    return result
  }
+
+  @JvmStatic
+  @Contract(pure = true)
+  fun addWordBreaks(text: String): String {
+    val codePoints = text.codePoints().iterator()
+    if (!codePoints.hasNext()) return ""
+    val result = StringBuilder(text.length + 50)
+    var codePoint = codePoints.nextInt()
+    val tagName = StringBuilder()
+
+    fun next(builder: StringBuilder = result) {
+      builder.appendCodePoint(codePoint)
+      codePoint = if (codePoints.hasNext())
+        codePoints.nextInt()
+      else
+        -1
+    }
+
+    while (codePoint >= 0) {
+      // break after dot if surrounded by letters
+      when {
+        Character.isLetter(codePoint) -> {
+          next()
+          if (codePoint == '.'.code) {
+            next()
+            if (Character.isLetter(codePoint)) {
+              result.append("<wbr>")
+            }
+          }
+        }
+        // break after ], ) or / followed by a char or digit
+        codePoint == ')'.code || codePoint == ']'.code || codePoint == '/'.code -> {
+          next()
+          if (Character.isLetterOrDigit(codePoint)) {
+            result.append("<wbr>")
+          }
+        }
+        // skip tag
+        codePoint == '<'.code -> {
+          next()
+          if (codePoint == '/'.code)
+            next()
+          if (!Character.isLetter(codePoint))
+            continue
+          tagName.clear()
+          while (Character.isLetterOrDigit(codePoint) || codePoint == '-'.code) {
+            next(tagName)
+          }
+          result.append(tagName)
+          if (tagName.contentEquals("style", true)
+              || tagName.contentEquals("title", true)
+              || tagName.contentEquals("script", true)) {
+            val curTag = tagName.toString()
+            do {
+              if (codePoint == '<'.code) {
+                next()
+                if (codePoint == '/'.code) {
+                  next()
+                  tagName.clear()
+                  while (Character.isLetterOrDigit(codePoint) || codePoint == '-'.code) {
+                    next(tagName)
+                  }
+                  result.append(tagName)
+                  if (tagName.contentEquals(curTag, true)) {
+                    while (codePoint >= 0 && codePoint != '>'.code) {
+                      next()
+                    }
+                    break
+                  }
+                }
+              }
+              else next()
+            }
+            while (true)
+          }
+          else {
+            while (codePoint >= 0) {
+              when (codePoint) {
+                '>'.code -> {
+                  next()
+                  break
+                }
+                '\''.code, '"'.code -> {
+                  val quoteStyle = codePoint
+                  next()
+                  while (codePoint >= 0) {
+                    when (codePoint) {
+                      '\\'.code -> {
+                        next()
+                        if (codePoint >= 0)
+                          next()
+                      }
+                      quoteStyle -> {
+                        next()
+                        break
+                      }
+                      else -> next()
+                    }
+                  }
+                }
+                else -> next()
+              }
+            }
+          }
+        }
+        else -> next()
+      }
+    }
+
+    return result.toString()
+  }
 }
--- a/platform/lang-impl/src/com/intellij/codeInsight/documentation/DocumentationManager.java
+++ b/platform/lang-impl/src/com/intellij/codeInsight/documentation/DocumentationManager.java
@@ -112,6 +112,7 @@ import static com.intellij.lang.documentation.DocumentationMarkup.*;
 *
 * @deprecated Unused in v2 implementation. Unsupported: use at own risk.
 */
+@SuppressWarnings("removal")
@Deprecated(forRemoval = true)
 public class DocumentationManager extends DockablePopupManager<DocumentationComponent> {
  public static final String JAVADOC_LOCATION_AND_SIZE = "javadoc.popup";
@@ -1942,6 +1943,7 @@ public class DocumentationManager extends DockablePopupManager<DocumentationComp
        }
        //noinspection HardCodedStringLiteral
        if (!text.startsWith("<p", nextChar) && !text.startsWith("<div", nextChar)) {
+          //noinspection HardCodedStringLiteral
          text = text.substring(0, nextChar) + "<p>" + text.substring(nextChar);
        }
      }
@@ -1970,6 +1972,7 @@ public class DocumentationManager extends DockablePopupManager<DocumentationComp
    //workaround for Swing html renderer not removing empty paragraphs before non-inline tags
    text = text.replaceAll("<p>\\s*(<(?:[uo]l|h\\d|p|tr|td))", "$1");
    text = addExternalLinksIcon(text);
+    text = DocumentationHtmlUtil.addWordBreaks(text);
    return text;
  }

--- a/platform/lang-impl/src/com/intellij/lang/documentation/QuickDocHighlightingHelper.kt
+++ b/platform/lang-impl/src/com/intellij/lang/documentation/QuickDocHighlightingHelper.kt
@@ -289,7 +289,6 @@ object QuickDocHighlightingHelper {
      "li { padding: ${scale(1)}px 0 ${scale(2)}px 0; }",
      "li p { padding-top: 0; padding-bottom: 0; }",
      "th { text-align: left; }",
-      "table { width: 100%}",
      "tr, table { margin: 0 0 0 0; padding: 0 0 0 0; }",
      "td { margin: 0 0 0 0; padding: 0 0 ${spacing}px 0; }",
      "td p { padding-top: 0; padding-bottom: 0; }",
--- a/platform/platform-impl/src/com/intellij/ide/ui/html/StyleSheetRulesProviderForCodeHighlighting.kt
+++ b/platform/platform-impl/src/com/intellij/ide/ui/html/StyleSheetRulesProviderForCodeHighlighting.kt
@@ -79,6 +79,8 @@ object StyleSheetRulesProviderForCodeHighlighting {
    if (enableInlineCodeBackground) {
      val selectors = inlineCodeParentSelectors.asSequence().map { "$it code" }.joinToString(", ")
      result.add("$selectors $codeColorStyle")
+      // 'caption-side' is a hack to support 'border-radius'.
+      // See also: com.intellij.util.ui.html.InlineViewEx
      result.add("$selectors { padding: 1px 4px; margin: 1px 0px; caption-side: 10px; }")
    }
    if (enableCodeBlocksBackground) {
--- a/platform/util/ui/src/com/intellij/util/ui/ExtendableHTMLViewFactory.kt
+++ b/platform/util/ui/src/com/intellij/util/ui/ExtendableHTMLViewFactory.kt
@@ -6,9 +6,10 @@ import com.intellij.openapi.util.IconLoader
 import com.intellij.openapi.util.text.HtmlChunk
 import com.intellij.ui.scale.JBUIScale
 import com.intellij.util.text.nullize
+import com.intellij.util.ui.html.FitToWidthImageView
 import com.intellij.util.ui.html.HiDpiScalingImageView
 import com.intellij.util.ui.html.InlineViewEx
-import com.intellij.util.ui.html.FitToWidthImageView
+import com.intellij.util.ui.html.WbrView
 import java.awt.*
 import java.awt.image.BufferedImage
 import java.io.ByteArrayInputStream
@@ -48,7 +49,7 @@ class ExtendableHTMLViewFactory internal constructor(
  companion object {
    @JvmField
    val DEFAULT_EXTENSIONS: List<Extension> = listOf(Extensions.ICONS, Extensions.BASE64_IMAGES, Extensions.HIDPI_IMAGES,
-                                                     Extensions.INLINE_VIEW_EX)
+                                                     Extensions.INLINE_VIEW_EX, Extensions.WBR_SUPPORT)

    @JvmField
    val DEFAULT: ExtendableHTMLViewFactory = ExtendableHTMLViewFactory(DEFAULT_EXTENSIONS)
@@ -134,6 +135,12 @@ class ExtendableHTMLViewFactory internal constructor(
    @JvmField
    val FIT_TO_WIDTH_IMAGES: Extension = FitToWidthImageViewExtension()

+    /**
+     * Adds support for `<wbr>` tags
+     */
+    @JvmField
+    val WBR_SUPPORT: Extension = WbrSupportExtension()
+
    private class IconsExtension(private val existingIconsProvider: (key: String) -> Icon?) : Extension {

      constructor(preloadedIcons: Map<String, Icon>) : this(preloadedIconsProvider(preloadedIcons))
@@ -385,6 +392,14 @@ class ExtendableHTMLViewFactory internal constructor(
    override fun invoke(element: Element, view: View): View? =
      if (view is ImageView) FitToWidthImageView(element) else null
  }
+
+  private class WbrSupportExtension : Extension {
+    override fun invoke(elem: Element, defaultView: View): View? =
+      if (elem.name.equals("wbr", true))
+        WbrView(elem)
+      else
+        null
+  }
 }

 private class HiDpiImagesExtension : ExtendableHTMLViewFactory.Extension {
--- a/platform/util/ui/src/com/intellij/util/ui/html/InlineViewEx.kt
+++ b/platform/util/ui/src/com/intellij/util/ui/html/InlineViewEx.kt
@@ -46,20 +46,6 @@ internal class InlineViewEx(elem: Element) : InlineView(elem) {
  override fun setPropertiesFromAttributes() {
    super.setPropertiesFromAttributes()

-    val parentView = parent
-    val index = (0..parentView.viewCount).firstOrNull { parentView.getView(it) === this } ?: -1
-
-
-    // Heuristics to determine whether we are within the same inline (e.g. <span>) element with paddings.
-    // Nested inline element insets are not supported, because hierarchy of inline elements is not preserved.
-    val prevSibling = if (index > 0) parentView.getView(index - 1) else null
-    val nextSibling = if (index < parentView.viewCount - 1) parentView.getView(index + 1) else null
-
-    padding = this.cssPadding
-    margin = this.cssMargin
-
-    startView = prevSibling?.cssPadding != padding || prevSibling.cssMargin != margin
-    endView = nextSibling?.cssPadding != padding || nextSibling.cssMargin != margin

    // "caption-side" is used as "border-radius"
    borderRadius = attributes.getAttribute(CAPTION_SIDE)
@@ -69,27 +55,7 @@ internal class InlineViewEx(elem: Element) : InlineView(elem) {
                     ?.toIntOrNull()
                     ?.let { JBUI.scale(it) }
                   ?: 0
-
-    padding.set(
-      padding.top,
-      if (startView) padding.left else 0,
-      padding.bottom,
-      if (endView) padding.right else 0,
-    )
-
-    margin.set(
-      margin.top,
-      if (startView) margin.left else 0,
-      margin.bottom,
-      if (endView) margin.right else 0,
-    )
-
-    insets = JBInsets(
-      padding.top + margin.top,
-      padding.left + margin.left,
-      padding.bottom + margin.bottom,
-      padding.right + margin.right,
-    )
+    updatePaddingsAndMargins(true)
  }

  override fun getPartialSpan(p0: Int, p1: Int): Float {
@@ -103,12 +69,14 @@ internal class InlineViewEx(elem: Element) : InlineView(elem) {
    return offset + super.getPartialSpan(p0, p1)
  }

-  override fun getPreferredSpan(axis: Int): Float =
-    super.getPreferredSpan(axis) + when (axis) {
+  override fun getPreferredSpan(axis: Int): Float {
+    updatePaddingsAndMargins(false)
+    return super.getPreferredSpan(axis) + when (axis) {
      View.X_AXIS -> insets.width()
      View.Y_AXIS -> insets.height()
      else -> throw IllegalArgumentException("Invalid axis: $axis")
    }
+  }

  override fun getTabbedSpan(x: Float, e: TabExpander?): Float =
    super.getTabbedSpan(x, e) + insets.width()
@@ -173,4 +141,59 @@ internal class InlineViewEx(elem: Element) : InlineView(elem) {
    return super.getAlignment(axis)
  }

+  private fun getSibling(parentView: View, curIndex: Int, direction: Int): View? {
+    var siblingIndex = curIndex + direction
+    val viewCount = parentView.viewCount
+    while (siblingIndex in 0..<viewCount) {
+      parentView.getView(siblingIndex)
+        .takeIf { it.element?.name?.equals("wbr", true) != true }
+        ?.let { return it }
+      siblingIndex += direction
+    }
+    return null
+  }
+
+  private fun updatePaddingsAndMargins(force: Boolean) {
+    val parentView = parent
+    val index = (0..<parentView.viewCount).firstOrNull { parentView.getView(it) === this } ?: -1
+
+    // Heuristics to determine whether we are within the same inline (e.g. <span>) element with paddings.
+    // Nested inline element insets are not supported, because hierarchy of inline elements is not preserved.
+    val prevSibling = getSibling(parentView, index, -1)
+    val nextSibling = getSibling(parentView, index, 1)
+
+    val cssPadding = this.cssPadding
+    val cssMargin = this.cssMargin
+
+    val startView = prevSibling?.cssPadding != cssPadding || prevSibling.cssMargin != cssMargin
+    val endView = nextSibling?.cssPadding != cssPadding || nextSibling.cssMargin != cssMargin
+
+    if (!force && startView == this.startView && endView == this.endView) {
+      return
+    }
+    this.startView = startView
+    this.endView = endView
+
+    padding = JBInsets(
+      cssPadding.top,
+      if (startView) cssPadding.left else 0,
+      cssPadding.bottom,
+      if (endView) cssPadding.right else 0,
+    )
+
+    margin = JBInsets(
+      cssMargin.top,
+      if (startView) cssMargin.left else 0,
+      cssMargin.bottom,
+      if (endView) cssMargin.right else 0,
+    )
+
+    insets = JBInsets(
+      padding.top + margin.top,
+      padding.left + margin.left,
+      padding.bottom + margin.bottom,
+      padding.right + margin.right,
+    )
+  }
+
 }
--- a/platform/util/ui/src/com/intellij/util/ui/html/WbrView.kt
+++ b/platform/util/ui/src/com/intellij/util/ui/html/WbrView.kt
@@ -0,0 +1,38 @@
+// Copyright 2000-2024 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
+package com.intellij.util.ui.html
+
+import java.awt.Shape
+import javax.swing.text.Element
+import javax.swing.text.Position
+import javax.swing.text.Segment
+import javax.swing.text.View
+import javax.swing.text.html.InlineView
+
+class WbrView(elem: Element) : InlineView(elem) {
+
+  override fun getMinimumSpan(axis: Int): Float = 0f
+
+  override fun getMaximumSpan(axis: Int): Float =
+    if (axis == View.X_AXIS)
+      0f
+    else
+      Int.MAX_VALUE.toFloat()
+
+  override fun getViewIndex(pos: Int, b: Position.Bias?): Int = -1
+
+  override fun getViewIndex(x: Float, y: Float, allocation: Shape?): Int = -1
+
+  override fun getResizeWeight(axis: Int): Int = 0
+
+  override fun setSize(width: Float, height: Float) {
+    super.setSize(0f, 0f)
+  }
+
+  override fun getPreferredSpan(axis: Int): Float = 0f
+
+  override fun getText(p0: Int, p1: Int): Segment = Segment()
+
+  override fun breakView(axis: Int, offset: Int, pos: Float, len: Float): View = this
+
+  override fun getBreakWeight(axis: Int, pos: Float, len: Float): Int = ExcellentBreakWeight
+}