From d90d2d87693d275fec0ac67c68a75bb6b1bfbc33 Mon Sep 17 00:00:00 2001
From: jomae <jomae@af82e41b-90c4-0310-8c96-b1721e28e2e2>
Date: Wed, 5 Feb 2025 12:18:39 +0000
Subject: [PATCH] 1.7.1dev: merge [17873,17876-17878] from 1.6-stable (fix for
 #13864,13865,13866)

git-svn-id: http://trac.edgewall.org/intertrac/log:/trunk@17879 af82e41b-90c4-0310-8c96-b1721e28e2e2
---
 trac/mimeview/pygments.py                   | 45 +++++++++++++++------
 trac/mimeview/templates/prefs_pygments.html | 29 +++++++------
 trac/mimeview/tests/pygments.data           |  8 ++++
 trac/mimeview/tests/pygments.py             | 14 +++++--
 4 files changed, 65 insertions(+), 31 deletions(-)

diff --git a/trac/mimeview/pygments.py b/trac/mimeview/pygments.py
index f1c30f994d..c3fa038346 100644
--- a/trac/mimeview/pygments.py
+++ b/trac/mimeview/pygments.py
@@ -37,6 +37,20 @@
 __all__ = ['PygmentsRenderer']
 
 
+if hasattr(HtmlFormatter, 'get_background_style_defs') and \
+        hasattr(HtmlFormatter, 'get_token_style_defs'):
+    def _get_style_defs(style, arg):
+        lines = []
+        formatter = HtmlFormatter(style=style)
+        lines.extend(formatter.get_background_style_defs(arg))
+        lines.extend(formatter.get_token_style_defs(arg))
+        return '\n'.join(lines)
+else:
+    def _get_style_defs(style, arg):
+        formatter = HtmlFormatter(style=style)
+        return formatter.get_style_defs(arg)
+
+
 class PygmentsRenderer(Component):
     """HTML renderer for syntax highlighting based on Pygments."""
 
@@ -140,7 +154,7 @@ def get_preference_panels(self, req):
         yield 'pygments', _('Syntax Highlighting')
 
     def render_preference_panel(self, req, panel):
-        styles = list(get_all_styles())
+        styles = set(get_all_styles())
 
         if req.method == 'POST':
             style = req.args.get('style')
@@ -151,15 +165,25 @@ def render_preference_panel(self, req, panel):
             add_notice(req, _("Your preferences have been saved."))
             req.redirect(req.href.prefs(panel or None))
 
-        for style in sorted(styles):
-            add_stylesheet(req, '/pygments/%s.css' % style, title=style.title())
+        def style_defs(style):
+            cls = get_style_by_name(style)
+            selector = '.trac-pygments-%s div.code pre' % style
+            return _get_style_defs(cls, selector)
+
+        default_style = self.default_style
+        if default_style not in styles:
+            default_style = 'trac'
+        selection = req.session.get('pygments_style')
+        if selection not in styles:
+            selection = default_style
         output = self._generate('html', self.EXAMPLE)
-        add_script_data(req, default_style=self.default_style.title())
+        add_script_data(req, default_style=default_style, selection=selection)
         return 'prefs_pygments.html', {
             'output': output,
-            'selection': req.session.get('pygments_style'),
-            'default_style': self.default_style,
-            'styles': styles
+            'selection': selection,
+            'default_style': default_style,
+            'styles': sorted(styles),
+            'style_defs': style_defs,
         }
 
     # IRequestHandler methods
@@ -186,11 +210,8 @@ def process_request(self, req):
             req.end_headers()
             return
 
-        formatter = HtmlFormatter(style=style_cls)
-        content = '\n\n'.join([
-            formatter.get_style_defs('div.code pre'),
-            formatter.get_style_defs('table.code td')
-        ]).encode('utf-8')
+        content = _get_style_defs(style_cls, ['div.code pre', 'table.code td'])
+        content = content.encode('utf-8')
 
         req.send_response(200)
         req.send_header('Content-Type', 'text/css; charset=utf-8')
diff --git a/trac/mimeview/templates/prefs_pygments.html b/trac/mimeview/templates/prefs_pygments.html
index 8221a1bcdb..7794fcb2d2 100644
--- a/trac/mimeview/templates/prefs_pygments.html
+++ b/trac/mimeview/templates/prefs_pygments.html
@@ -24,22 +24,21 @@
       div.code pre { border: 1px solid #999; font-size: 90%; margin: 1em 2em;
         padding: 5px; width: 60%;
       }
+      # for style_ in styles:
+      ${- style_defs(style_)|safe}
+      # endfor
     </style>
     <script>
-      (function($){
-        window.switchStyleSheet = function(title) {
-          $('link[rel="stylesheet"][title]').each(function() {
-            this.disabled = true; // needed to force correct behavior for WebKit (see #10923)
-            this.disabled = this.getAttribute('title') != title;
-          });
-        }
-      })(jQuery);
       jQuery(function($) {
-        $("#pygment_theme").attr("autocomplete", "off").on('change keypress', function() {
-          var idx = this.selectedIndex;
-          var text = this.options[idx].text;
-          var stylesheet = idx > 0 ? text : default_style;
-          switchStyleSheet(stylesheet);
+        var selection = window.selection;
+        var default_style = window.default_style;
+        var $theme = $('#pygment_theme');
+        var $field = $theme.closest('div.field');
+        $theme.attr("autocomplete", "off").on('change keypress', function() {
+          var style = this.value || default_style;
+          $field.removeClass('trac-pygments-' + selection)
+                .addClass('trac-pygments-' + style);
+          selection = style;
         }).change();
       });
     </script>
@@ -48,12 +47,12 @@
 
   <body>
     # block prefpanel
-    <div class="field">
+    <div class="field trac-pygments-${selection}">
       <label>${_("Style:")}
         <select id="pygment_theme" name="style">
           <option value="">${_("Default: %(default)s",
                                default=default_style.title())}</option>
-          # for style in sorted(styles):
+          # for style in styles:
           <option${{'value': style,
                     'selected': selection == style
                    }|htmlattr}>${style.title()}</option>
diff --git a/trac/mimeview/tests/pygments.data b/trac/mimeview/tests/pygments.data
index 0bc56b36e7..153451d4b9 100644
--- a/trac/mimeview/tests/pygments.data
+++ b/trac/mimeview/tests/pygments.data
@@ -4,6 +4,9 @@
 # python_hello_pygments_2.1plus
 <span class="k">def</span> <span class="nf">hello</span><span class="p">():</span>
         <span class="k">return</span> <span class="s2">&quot;Hello World!&quot;</span>
+# python_hello_pygments_2.19plus
+<span class="k">def</span><span class="w"> </span><span class="nf">hello</span><span class="p">():</span>
+        <span class="k">return</span> <span class="s2">&quot;Hello World!&quot;</span>
 # python_hello_mimeview
 <div class="code"><pre>
 <span class="k">def</span> <span class="nf">hello</span><span class="p">():</span>
@@ -14,6 +17,11 @@
 <span class="k">def</span> <span class="nf">hello</span><span class="p">():</span>
         <span class="k">return</span> <span class="s2">&quot;Hello World!&quot;</span>
 </pre></div>
+# python_hello_mimeview_pygments_2.19plus
+<div class="code"><pre>
+<span class="k">def</span><span class="w"> </span><span class="nf">hello</span><span class="p">():</span>
+        <span class="k">return</span> <span class="s2">&quot;Hello World!&quot;</span>
+</pre></div>
 # python_with_lineno_1
 <div class="wiki-code"><table class="code"><thead><tr><th class="lineno" title="Line numbers">Line</th><th class="content"> </th></tr></thead><tbody><tr><th id="a-L1"><a href="#a-L1">1</a></th><td><span class="k">print</span> <span class="s">&#39;this is a python sample&#39;</span>
 </td></tr><tr><th id="a-L2"><a href="#a-L2">2</a></th><td><span class="n">a</span> <span class="o">=</span> <span class="n">b</span><span class="o">+</span><span class="mi">3</span>
diff --git a/trac/mimeview/tests/pygments.py b/trac/mimeview/tests/pygments.py
index 9773fbeeaf..0a81e9a917 100644
--- a/trac/mimeview/tests/pygments.py
+++ b/trac/mimeview/tests/pygments.py
@@ -87,9 +87,12 @@ def hello():
             """))
         self.assertTrue(result)
         if pygments_version < parse_version('2.1'):
-            self._test('python_hello', result)
+            expected_id = 'python_hello'
+        elif pygments_version < parse_version('2.19'):
+            expected_id = 'python_hello_pygments_2.1plus'
         else:
-            self._test('python_hello_pygments_2.1plus', result)
+            expected_id = 'python_hello_pygments_2.19plus'
+        self._test(expected_id, result)
 
     def test_python_hello_mimeview(self):
         """
@@ -102,9 +105,12 @@ def hello():
             """))
         self.assertTrue(result)
         if pygments_version < parse_version('2.1'):
-            self._test('python_hello_mimeview', result)
+            expected_id = 'python_hello_mimeview'
+        elif pygments_version < parse_version('2.19'):
+            expected_id = 'python_hello_mimeview_pygments_2.1plus'
         else:
-            self._test('python_hello_mimeview_pygments_2.1plus', result)
+            expected_id = 'python_hello_mimeview_pygments_2.19plus'
+        self._test(expected_id, result)
 
     def test_python_with_lineno(self):
         result = format_to_html(self.env, self.context, textwrap.dedent("""\