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# -*- coding:utf-8 -*-
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from __future__ import absolute_import
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from django import forms
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from django.template.loader import render_to_string
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from django.utils.encoding import force_str
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from django.utils.html import conditional_escape
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from django.utils.safestring import mark_safe
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try:
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# Django >=1.7
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from django.forms.utils import flatatt
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except ImportError:
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# Django <1.7
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from django.forms.util import flatatt
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from .configs import MDConfig
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class MDEditorWidget(forms.Textarea):
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"""
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Widget providing Editor.md for Rich Text Editing.
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see Editor.md docs: https://pandao.github.io/editor.md/examples/index.html
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"""
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def __init__(self, config_name='default', *args, **kwargs):
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super(MDEditorWidget, self).__init__(*args, **kwargs)
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# Setup config from defaults.
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self.config = MDConfig(config_name)
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def render(self, name, value, renderer=None, attrs=None):
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"""
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renderer: django2.1 新增加的参数，此处不做应用，赋值None做兼容处理
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"""
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if value is None:
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value = ''
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final_attrs = self.build_attrs(self.attrs, attrs, name=name)
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return mark_safe(render_to_string('markdown.html', {
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'final_attrs': flatatt(final_attrs),
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'value': conditional_escape(force_str(value)),
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'id': final_attrs['id'],
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'config': self.config,
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}))
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def build_attrs(self, base_attrs, extra_attrs=None, **kwargs):
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"""
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Helper function for building an attribute dictionary.
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This is combination of the same method from Django<=1.10 and Django1.11+
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"""
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attrs = dict(base_attrs, **kwargs)
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if extra_attrs:
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attrs.update(extra_attrs)
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return attrs
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def _get_media(self):
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return forms.Media(
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css={
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"all": ("mdeditor/css/editormd.css",)
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},
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js=(
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"mdeditor/js/jquery.min.js",
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"mdeditor/js/editormd.min.js",
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))
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media = property(_get_media)
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