directly inserting skipText into js

doc/index.rst

@@ -96,15 +96,21 @@ Customize the text that is removed during copying
 -------------------------------------------------
 
 By default, ``sphinx-copybutton`` will remove Python prompts (">>> ") from
-the beginning of each line. To change the text that is removed (or to remove
-no text at all), add the following configuration to your ``conf.py`` file:
+the beginning of each line. To change the text that is removed, add the
+following configuration to your ``conf.py`` file:
 
 .. code:: python
 
     copybutton_skip_text = "sometexttoskip"
 
 Note that this text will only be removed from lines that *begin* with the text.
 
+To skip this behavior and remove *no* text, use an empty string:
+
+.. code:: python
+
+    copybutton_skip_text = ""
+
 Use a different copy button image
 ---------------------------------
 

sphinx_copybutton/__init__.py

@@ -7,19 +7,21 @@ def scb_static_path(app):
     static_path = os.path.abspath(os.path.join(os.path.dirname(__file__), '_static'))
     app.config.html_static_path.append(static_path)
 
-def add_skip_text_js(app):
-    skip_text = app.config['copybutton_skip_text']
-    app.add_js_file(None, body="var copybuttonSkipText = '{}';".format(skip_text))
+def add_to_context(app, config):
+    # Update the global context
+    config.html_context.update({'copybutton_skip_text': config.copybutton_skip_text})
 
 def setup(app):
     print('Adding copy buttons to code blocks...')
     # Add our static path
     app.connect('builder-inited', scb_static_path)
-    app.connect('builder-inited', add_skip_text_js)
 
     # configuration for this tool
     app.add_config_value("copybutton_skip_text", ">>> ", "html")
 
+    # Add configuration value to the template
+    app.connect("config-inited", add_to_context)
+
     # Add relevant code to headers
     app.add_css_file('copybutton.css')
     app.add_js_file('clipboard.min.js')

sphinx_copybutton/_static/copybutton.js → sphinx_copybutton/_static/copybutton.js_t

@@ -65,23 +65,14 @@ const temporarilyChangeTooltip = (el, newText) => {
 var copyTargetText = (trigger) => {
   var target = document.querySelector(trigger.attributes['data-clipboard-target'].value);
   var textContent = target.textContent.split('\n');
-  // Prevent breaking of the copy functionality, for themes which don't
-  // set copybuttonSkipText properly.
-  if(! ("copybuttonSkipText" in window)){
-    var copybuttonSkipText = ">>> ";
-    console.warn(`sphinx_copybutton:
-    The theme that was used to generate this document, does not support the setting for 'copybutton_skip_text',
-    which is why its default of '>>> ' was used.
-    Please tell the theme developers to include javascript files with the template tag 'js_tag' for sphinx>=1.8.
-    Example: https://github.com/readthedocs/sphinx_rtd_theme/blob/ab7d388448258a24f8f4fa96dccb69d24f571736/sphinx_rtd_theme/layout.html#L30
-    `);
+  var copybuttonSkipText = '{{ copybutton_skip_text }}' // Inserted from config
+  if (copybuttonSkipText.length > 0) {
+    textContent.forEach((line, index) => {
+      if (line.startsWith(copybuttonSkipText)) {
+        textContent[index] = line.slice(copybuttonSkipText.length)
+      }
+    });
   }
-
-  textContent.forEach((line, index) => {
-    if (line.startsWith(copybuttonSkipText)) {
-      textContent[index] = line.slice(copybuttonSkipText.length)
-    }
-  });
   return textContent.join('\n')
 }