🐛 check if color scheme is valid before loading

Fix for #33
Specify encoding when opening resource (`utf-8`)

.sublime/MarkdownLivePreview.sublime-settings

@@ -12,5 +12,8 @@
 
     // Choose what to do with YAML/TOML (---/+++ respectively) headers
     // Valid values: "wrap_in_pre", "remove".
-    "header_action": "wrap_in_pre"
+    "header_action": "wrap_in_pre",
+
+    // Wait at least the specified *seconds* before updating the preview.
+    "update_preview_every": 0
 }

MLPApi.py

@@ -42,7 +42,7 @@ def markdown2html(md, basepath, color_scheme):
 
     # the option no-code-highlighting does not exists in the official version of markdown2 for now
     # I personaly edited the file (markdown2.py:1743)
-    html += md2.markdown(md, extras=['fenced-code-blocks', 'tables'])
+    html += md2.markdown(md, extras=['fenced-code-blocks', 'tables', 'strike'])
 
     # tables aren't supported by the Phantoms
     # This function transforms them into aligned ASCII tables and displays them in a <pre> block
@@ -73,8 +73,7 @@ def markdown2html(md, basepath, color_scheme):
 
 def show_html(md_view, preview):
     global windows_phantom_set
-    html = markdown2html(get_view_content(md_view), os.path.dirname(md_view.file_name()),
-                         os.path.join(sublime.packages_path(), '..', md_view.settings().get('color_scheme')))
+    html = markdown2html(get_view_content(md_view), os.path.dirname(md_view.file_name()), md_view.settings().get('color_scheme'))
 
     phantom_set = windows_phantom_set.setdefault(preview.window().id(),
                                              sublime.PhantomSet(preview, 'markdown_live_preview'))

MarkdownLivePreview.py

@@ -2,6 +2,7 @@
 
 import sublime
 import sublime_plugin
+import time
 
 from .MLPApi import *
 from .setting_names import *
@@ -46,6 +47,11 @@ class MarkdownLivePreviewListener(sublime_plugin.EventListener):
 
     def update(self, view):
         vsettings = view.settings()
+        now = time.time()
+
+        if now - vsettings.get(LAST_UPDATE, 0) < get_settings().get('update_preview_every'):
+            return
+        vsettings.set(LAST_UPDATE, now)
         if not vsettings.get(PREVIEW_ENABLED):
             return
         id = vsettings.get(PREVIEW_ID)
@@ -58,10 +64,14 @@ class MarkdownLivePreviewListener(sublime_plugin.EventListener):
         show_html(view, preview)
         return view, preview
 
-    def on_modified(self, view):
+    def on_modified_async(self, view):
         if not is_markdown_view(view): # faster than getting the settings
             return
+        delay = get_settings().get('update_preview_every')
+        if not delay:
             self.update(view)
+        else:
+            sublime.set_timeout(lambda: self.update(view), delay * 1000)
 
     def on_window_command(self, window, command, args):
         if command == 'close' and window.settings().get(PREVIEW_WINDOW):
@@ -78,7 +88,6 @@ class MarkdownLivePreviewListener(sublime_plugin.EventListener):
                                            '.hidden-tmLanguage'
             and not any(filter(lambda window: window.settings().get(PREVIEW_WINDOW) is True,
                                sublime.windows()))):
-            # print("MarkdownLivePreview.py:81", 'open window')
             sublime.run_command('new_markdown_live_preview')
 
 

example.md

@@ -10,7 +10,7 @@ hope: You'll enjoy using it!
 
 And `<!-- vicious ones ;) -->`
 
-Some `inline code` with *italic* and **bold** text.
+Some `inline code` with *italic*, **bold** text, and ~~strike through~~.
 
 ```python
 import this

functions.py

@@ -127,6 +127,13 @@ def get_style(color_scheme):
     if os.path.exists(USER_STYLE_FILE):
         with open(USER_STYLE_FILE) as fp:
             css += '\n' + fp.read() + '\n'
-    if color_scheme:
-        css += pygments_from_theme(color_scheme)
+    if color_scheme and color_scheme.endswith('.tmTheme'):
+        css += pygments_from_theme(get_resource(color_scheme))
     return ''.join([line.strip() + ' ' for line in css.splitlines()])
+
+def get_resource(resource):
+    if os.path.exists(os.path.join(sublime.packages_path(), '..', resource)):
+        with open(os.path.join(sublime.packages_path(), '..', resource), encoding='utf-8') as fp:
+            return fp.read()
+    else:
+        return sublime.load_resource(resource)

lib/pygments_from_theme.py

@@ -2,7 +2,7 @@
 
 import os
 import sys
-from xml.dom.minidom import parse
+from xml.dom.minidom import parseString
 from collections import defaultdict
 
 class Style:
@@ -55,9 +55,9 @@ class Style:
 # colors and font styles from colortheme file
 
 
-def get_settings(file_name):
+def get_settings(color_scheme_content):
     settings = defaultdict(lambda: [])
-    dom = parse(file_name)
+    dom = parseString(color_scheme_content)
     arr = dom.getElementsByTagName('array')[0]
     editor_cfg = arr.getElementsByTagName('dict')[0].getElementsByTagName('dict')[0]
     editor_vals = editor_cfg.getElementsByTagName('string')
@@ -82,8 +82,8 @@ def get_settings(file_name):
     return settings
 
 
-def pygments_from_theme(file):
-    settings = get_settings(file)
+def pygments_from_theme(color_scheme_content):
+    settings = get_settings(color_scheme_content)
     styles = []
 
     #Generic

setting_names.py

@@ -7,3 +7,4 @@ IS_HIDDEN = 'is_hidden_markdown_live_preview'
 MD_VIEW_ID = 'markdown_live_preview_md_id'
 PREVIEW_WINDOW = 'markdown_live_preview_window'
 ON_OPEN = 'markdown_live_preview_on_open'
+LAST_UPDATE = 'markdonw_live_preview_last_run'

test.md

@@ -10,3 +10,7 @@ else:
 ```
 
 ![img](docs/imgs/syntax-specific-settings.png)
+
+<ol>
+    <li>test</li>
+</ol>