[LFC] Add <wbr> to showLayoutTree

https://bugs.webkit.org/show_bug.cgi?id=217025

Reviewed by Darin Adler.

This patch also tweaks the inline tree output (one line geometry output per line, different output format).

<div style="width: 100px;">first_line<wbr>second_line</div>

block box at (0,10) size 100x20
    line at (0.00,0.00) size 100.00x10.00 baseline at (8.00)
    line at (0.00,10.00) size 100.00x10.00 baseline at (8.00)
  text run at (0.00,0.00) size 100.00x10.00 run(0, 10)
  text run at (0.00,0.00) size 110.00x10.00 run(0, 11)
anonymous inline box (0x495583d20) length->(10) "first_line"
word break opportunity at (100,8) size 0x0 (0x4967c0680)
anonymous inline box (0x495591e00) length->(11) "second_line"

* layout/layouttree/LayoutTreeBuilder.cpp:
(WebCore::Layout::outputInlineRuns):
(WebCore::Layout::outputLayoutBox):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@267648 268f45cc-cd09-0410-ab3c-d52691b4dbfc

Author: [email protected]

Source/WebCore/ChangeLog

@@ -1,3 +1,27 @@
+2020-09-26  Zalan Bujtas  <[email protected]>
+
+        [LFC] Add <wbr> to showLayoutTree
+        https://bugs.webkit.org/show_bug.cgi?id=217025
+
+        Reviewed by Darin Adler.
+
+        This patch also tweaks the inline tree output (one line geometry output per line, different output format).
+
+        <div style="width: 100px;">first_line<wbr>second_line</div>
+
+        block box at (0,10) size 100x20
+            line at (0.00,0.00) size 100.00x10.00 baseline at (8.00)
+            line at (0.00,10.00) size 100.00x10.00 baseline at (8.00)
+          text run at (0.00,0.00) size 100.00x10.00 run(0, 10)
+          text run at (0.00,0.00) size 110.00x10.00 run(0, 11)
+        anonymous inline box (0x495583d20) length->(10) "first_line"
+        word break opportunity at (100,8) size 0x0 (0x4967c0680)
+        anonymous inline box (0x495591e00) length->(11) "second_line"
+
+        * layout/layouttree/LayoutTreeBuilder.cpp:
+        (WebCore::Layout::outputInlineRuns):
+        (WebCore::Layout::outputLayoutBox):
+
 2020-09-26  Wenson Hsieh  <[email protected]>
 
         Remove support for setting CMYKA fill and stroke colors in 2D canvas

Source/WebCore/layout/layouttree/LayoutTreeBuilder.cpp

@@ -383,25 +383,23 @@ static void outputInlineRuns(TextStream& stream, const LayoutState& layoutState,
     auto& inlineFormattingState = layoutState.establishedInlineFormattingState(inlineFormattingRoot);
     auto& lines = inlineFormattingState.lines();
 
-    unsigned printedCharacters = 0;
-    while (++printedCharacters <= depth * 2)
-        stream << " ";
-    stream << "  ";
-
-    stream << "lines are -> ";
-    for (auto& line : lines)
-        stream << "[" << line.logicalLeft() << "," << line.logicalTop() << " " << line.logicalWidth() << "x" << line.logicalHeight() << "][baseline: " << line.baseline() << "]";
-    stream.nextLine();
+    for (auto& line : lines) {
+        size_t printedCharacters = 0;
+        while (++printedCharacters <= depth * 2)
+            stream << " ";
+        stream << "    line at (" << line.logicalLeft() << "," << line.logicalTop() << ") size " << line.logicalWidth() << "x" << line.logicalHeight() << " baseline at (" << line.baseline() << ")";
+        stream.nextLine();
+    }
 
     for (auto& run : inlineFormattingState.lineRuns()) {
         unsigned printedCharacters = 0;
         while (++printedCharacters <= depth * 2)
             stream << " ";
         stream << "  ";
         if (run.text())
-            stream << "inline text box";
+            stream << "text run";
         else
-            stream << "inline box";
+            stream << "box run";
         stream << " at (" << run.logicalLeft() << "," << run.logicalTop() << ") size " << run.logicalWidth() << "x" << run.logicalHeight();
         if (run.text())
             stream << " run(" << run.text()->start() << ", " << run.text()->end() << ")";
@@ -453,14 +451,14 @@ static void outputLayoutBox(TextStream& stream, const Box& layoutBox, const BoxG
             stream << "anonymous inline box";
         else if (layoutBox.isInlineBlockBox())
             stream << "inline-block box";
-        else if (layoutBox.isInlineBox())
-            stream << "inline box";
+        else if (layoutBox.isLineBreakBox())
+            stream << (downcast<LineBreakBox>(layoutBox).isOptional() ? "word break opportunity" : "line break");
         else if (layoutBox.isAtomicInlineLevelBox())
             stream << "atomic inline level box";
         else if (layoutBox.isReplacedBox())
             stream << "replaced inline box";
-        else if (layoutBox.isLineBreakBox())
-            stream << "line break";
+        else if (layoutBox.isInlineBox())
+            stream << "inline box";
         else
             stream << "other inline level box";
     } else if (layoutBox.isBlockLevelBox())