add documentation for wbuilder

doc/Hacking.md

@@ -0,0 +1,23 @@
+Hacking
+=======
+
+Developing UI Widgets
+---------------------
+
+If you need to create new UI widgets, `utils/wbuilder.lua` is your friend. It
+sets up a minimal environment to bootstrap KOReader's UI framework to avoid
+starting the whole reader. This gives you quick feedback loop while iterating
+through your widget changes.
+
+To get a taste of how it works, try running this command at the root of
+KOReader's source tree:
+
+```
+./kodev wbuilder
+```
+
+It will spawn up an emulator window with a grid and simple timer widget for
+demonstration.
+
+You can add your own `UIManager:show` show call at the end of
+`utils/wbuilder.lua` to test your new widget.

doc/config.ld

@@ -5,7 +5,7 @@ title = 'KOReader Documentation'
 dir = 'html'
 style = '!fixed'
 use_markdown_titles = true
-readme = '../README.md'
+topics = {'../README.md', './Hacking.md'}
 package = ''
 format = 'markdown'
 sort_modules = true

utils/wbuilder.lua

@@ -385,7 +385,6 @@ UIManager:show(Clock:new())
 --UIManager:show(keyboard)
 --UIManager:show(TestInputText)
 --TestInputText:onShowKeyboard()
-
-UIManager:show(kvp)
+--UIManager:show(kvp)
 
 UIManager:run()