139 lines
4.8 KiB
Python
139 lines
4.8 KiB
Python
import sublime
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import sublime_plugin
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from . import markdown2
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import os.path
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import re
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from html.parser import HTMLParser
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# Main sublime tools function
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def md(*t, **kwargs):
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sublime.message_dialog(kwargs.get('sep', '\n').join([str(el) for el in t]))
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def sm(*t, **kwargs):
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sublime.status_message(kwargs.get('sep', ' ').join([str(el) for el in t]))
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def em(*t, **kwargs):
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sublime.error_message(kwargs.get('sep', ' ').join([str(el) for el in t]))
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STYLE_FILE = os.path.join(sublime.packages_path(), 'User', 'MarkdownLivePreview.css')
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def get_style():
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"""Of course, this is temporal, there will be an option to customize the CSS"""
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if os.path.exists(STYLE_FILE):
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with open(STYLE_FILE) as fp:
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return fp.read()
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return """
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body {
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padding:10px;
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font-family: "Open Sans", sans-serif;
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background-color: #fff;
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font-size: 15px;
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}
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blockquote {
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font-style: italic;
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display: block;
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margin-left: 30px;
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border: 1px solid red;
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}
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"""
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def pre_with_br(html):
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"""Because the phantoms of sublime text does not support <pre> blocks
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this function replaces every \n with a <br> in a <pre>"""
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while True:
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obj = re.search(r'<pre>.*?</pre>', html, re.DOTALL)
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if not obj:
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break
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html = list(html)
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html[obj.start(0):obj.end(0)] = ''.join(html[obj.start(0):obj.end(0)]).replace('\n', '<br>').replace('<pre>', '<pre class="pre">')
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html = ''.join(html)
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return html
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def close_preview(md_view_settings, preview):
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preview.close()
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md_view_settings.erase('markdown_preview_id')
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md_view_settings.erase('markdown_preview_enabled')
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def create_preview(window, md_view):
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focus_group, focus_view = window.get_view_index(md_view)
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preview = window.new_file()
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window.run_command('new_pane') # move the preview to a new group
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preview.set_name(os.path.basename(md_view.file_name()) + ' - Preview')
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preview_settings = preview.settings()
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preview_settings.set('gutter', False)
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preview_settings.set('scroll_past_end', False)
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preview_settings.set('is_markdown_preview', True)
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preview_settings.set('markdown_view_id', md_view.id())
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md_view.settings().set('markdown_preview_id', preview.id())
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window.focus_group(focus_group)
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window.focus_view(md_view)
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return preview, preview_settings
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def show_html(md_view, preview):
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html = '<style>{}</style>'.format(get_style()) + pre_with_br(markdown2.markdown(get_view_content(md_view), extras=['fenced-code-blocks']))
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html = HTMLParser().unescape(html)
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preview.erase_phantoms('markdown_preview')
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preview.add_phantom('markdown_preview',
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sublime.Region(0),
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html,
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sublime.LAYOUT_INLINE,
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lambda href: sublime.run_command('open_url', {'url': href}))
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y = md_view.layout_extent()[1] / md_view.text_to_layout(md_view.sel()[0].begin())[1]
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preview.set_viewport_position((0, y * preview.layout_extent()[1]), False)
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def get_view_content(view):
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return view.substr(sublime.Region(0, view.size()))
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def get_view_from_id(window, id):
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for view in window.views():
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if view.id() == id:
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return view
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class MarkdownInPopupCommand(sublime_plugin.EventListener):
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def on_load(self, view):
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settings = view.settings()
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if not 'markdown' in settings.get('syntax').lower():
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return
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settings.add_on_change('markdown_preview_enabled', lambda: self.on_modified(view))
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def on_modified(self, md_view):
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window = md_view.window()
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md_view_settings = md_view.settings()
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if not 'markdown' in md_view_settings.get('syntax').lower():
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return
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markdown_preview_enabled = md_view_settings.get('markdown_preview_enabled') is True
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preview_id = md_view_settings.get('markdown_preview_id', None)
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if not markdown_preview_enabled:
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if preview_id is not None:
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close_preview(md_view_settings, get_view_from_id(window, preview_id))
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return
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if preview_id is None:
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preview, preview_settings = create_preview(window, md_view)
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else:
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preview = get_view_from_id(window, preview_id)
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if not preview:
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md_view_settings.erase('markdown_preview_id')
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md_view_settings.erase('markdown_preview_enabled')
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return
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preview_settings = preview.settings()
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show_html(md_view, preview)
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def on_pre_close(self, view):
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settings = view.settings()
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if settings.get('markdown_preview_enabled') is True:
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preview = get_view_from_id(view.window(), settings.get('markdown_preview_id'))
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if preview:
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sublime.set_timeout_async(lambda: preview.close(), 100)
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