442 lines
10 KiB
Python
442 lines
10 KiB
Python
from kivy.properties import StringProperty, NumericProperty, ListProperty
|
|
from kivy.factory import Factory
|
|
from kivy.clock import Clock
|
|
from kivy.logger import Logger
|
|
from kivy.uix.scrollview import ScrollView
|
|
from kivy.uix.label import Label
|
|
from kivy.uix.image import AsyncImage
|
|
|
|
from .baseWidget import ScrollWidget, getDataHandler, VBox
|
|
|
|
from .utils import CSize
|
|
import re
|
|
|
|
SOURCE_DELIMITER = "\n```\n"
|
|
VIDEO_LEAD = "![@"
|
|
AUDIO_LEAD = "![#"
|
|
IMAGE_LEAD = "!["
|
|
LINK_LEAD = "["
|
|
REFER_SPLIT = "]("
|
|
REFER_END = ")"
|
|
|
|
class MarkdownParser(object):
|
|
mdkeys = [
|
|
SOURCE_DELIMITER,
|
|
VIDEO_LEAD,
|
|
AUDIO_LEAD,
|
|
IMAGE_LEAD
|
|
]
|
|
def __init__(self, mdtext):
|
|
self.mdtext = mdtext
|
|
self.result = []
|
|
self.text = ""
|
|
self.mdkey_handler = {
|
|
SOURCE_DELIMITER:self.handle_source_delimiter,
|
|
VIDEO_LEAD:self.lead_video,
|
|
AUDIO_LEAD:self.lead_audio,
|
|
IMAGE_LEAD:self.lead_image,
|
|
}
|
|
|
|
def handle_source_delimiter(self):
|
|
x = self.mdtext.split(SOURCE_DELIMITER,1)
|
|
mk_p = MarkdownParser(x[0])
|
|
d = {
|
|
'source':x[0]
|
|
}
|
|
self.result.append(d)
|
|
if len(x) > 1:
|
|
self.mdtext = x[1]
|
|
|
|
def lead_video(self):
|
|
print('lead_video() ..., mdtext=', self.mdtext)
|
|
x = self.mdtext.split(REFER_SPLIT,1)
|
|
if len(x)<2:
|
|
print('lead_video() return here', REFER_SPLIT, '---', self.mdtext)
|
|
self.text = f'{VIDEO_LEAD}'
|
|
return
|
|
title = x[0]
|
|
y = x[1].split(REFER_END,1)
|
|
if len(y) < 2:
|
|
print('lead_video() return here', REFER_END)
|
|
self.text = f'{VIDEO_LEAD}'
|
|
return
|
|
url = y[0]
|
|
self.mdtext = y[1]
|
|
d = {
|
|
"video":{
|
|
"title":title,
|
|
"url":url
|
|
}
|
|
}
|
|
self.result.append(d)
|
|
|
|
def lead_audio(self):
|
|
x = self.mdtext.split(REFER_SPLIT,1)
|
|
if len(x)<2:
|
|
self.text = f'{AUDIO_LEAD}'
|
|
return
|
|
title = x[0]
|
|
y = x[1].split(REFER_END,1)
|
|
if len(y) < 2:
|
|
self.text = f'{AUDIO_LEAD}'
|
|
return
|
|
url = y[0]
|
|
d = {
|
|
"audio":{
|
|
"title":"title",
|
|
"url":url
|
|
}
|
|
}
|
|
self.result.append(d)
|
|
l = len(title) + 2 + len(url)
|
|
self.mdtext = self.mdtext[l:]
|
|
|
|
def lead_image(self):
|
|
x = self.mdtext.split(REFER_SPLIT,1)
|
|
if len(x)<2:
|
|
self.text = f'{IMAGE_LEAD}'
|
|
return
|
|
title = x[0]
|
|
y = x[1].split(REFER_END,1)
|
|
if len(y) < 2:
|
|
self.text = f'{IMAGE_LEAD}'
|
|
return
|
|
url = y[0]
|
|
d = {
|
|
"image":{
|
|
"title":"title",
|
|
"url":url
|
|
}
|
|
}
|
|
self.result.append(d)
|
|
self.mdtext = y[1]
|
|
|
|
def check_key(self,t):
|
|
for k in self.mdkeys:
|
|
if t.startswith(k):
|
|
return k
|
|
return None
|
|
|
|
def parse(self):
|
|
"""
|
|
parser parse mdtext, recognize bbtext, source, img, audio, video
|
|
part text
|
|
"""
|
|
while len(self.mdtext) > 0:
|
|
k = self.check_key(self.mdtext)
|
|
if k is None:
|
|
self.text = f'{self.text}{self.mdtext[0]}'
|
|
self.mdtext = self.mdtext[1:]
|
|
else:
|
|
if len(self.text) > 0:
|
|
self.result.append({'pure_md':self.text})
|
|
self.text = ""
|
|
self.mdtext = self.mdtext[len(k):]
|
|
self.mdkey_handler[k]()
|
|
if len(self.text) > 0:
|
|
self.result.append({'pure_md':self.text})
|
|
self.text = ''
|
|
return self.result
|
|
|
|
class MDImage(AsyncImage):
|
|
parent_width=NumericProperty(None)
|
|
image_size = ListProperty(None)
|
|
def __init__(self, **kw):
|
|
super().__init__(**kw)
|
|
self.image_size = None
|
|
self.parent_width = None
|
|
self.bind(texture=self.image_loaded)
|
|
|
|
def image_loaded(self,o, *args):
|
|
self.image_size = self.texture.size
|
|
|
|
def resize(self, *args):
|
|
ps = [0,0,0,0]
|
|
if hasattr(self.parent, 'padding'):
|
|
ps = self.parent.padding
|
|
self.parent_width = self.parent.width - ps[0] - ps[2]
|
|
if self.texture:
|
|
if self.texture.size:
|
|
self.image_size = self.texture.size
|
|
Logger.info('MDImage:resize called, %d', self.parent_width)
|
|
|
|
def on_image_size(self, *args):
|
|
if self.parent_width:
|
|
Logger.info('MDImage:on_iage_size %d, %s', self.parent_width,
|
|
self.image_size)
|
|
self.set_image_size()
|
|
|
|
def on_parent_width(self, *args):
|
|
if self.image_size:
|
|
Logger.info('MDImage:on_oarent_width %d, %s', self.parent_width,
|
|
self.image_size)
|
|
self.set_image_size()
|
|
|
|
def set_image_size(self):
|
|
self.width = self.parent_width
|
|
self.height = self.parent_width * self.image_size[1] \
|
|
/ self.image_size[0]
|
|
Logger.info('MDImage:set_image_size %d, %d', self.width,
|
|
self.height)
|
|
|
|
class MarkdownBody(VBox):
|
|
def __init__(self, md_obj=None, padding=[10,10,10,10], **kw):
|
|
self.part_handlers = {
|
|
"pure_md":self.build_pure_md,
|
|
"source":self.build_source,
|
|
"image":self.build_image,
|
|
"video":self.build_video,
|
|
"audio":self.build_audio
|
|
}
|
|
self.md_obj = md_obj
|
|
super().__init__(**kw)
|
|
self.padding=padding
|
|
self.size_hint = 1,None
|
|
self.bind(parent=self.resize)
|
|
self.resize()
|
|
|
|
def show_mdtext(self, mdtext):
|
|
mdp = MarkdownParser(mdtext)
|
|
parts = mdp.parse()
|
|
self.clear_widgets()
|
|
for p in parts:
|
|
for k,v in p.items():
|
|
f = self.part_handlers.get(k)
|
|
f(v)
|
|
|
|
def resize(self, *args):
|
|
return
|
|
Logger.info('MDBody:resize called')
|
|
if self.parent:
|
|
ps = [0,0,0,0]
|
|
if hasattr(self.parent, 'padding'):
|
|
ps = self.parent.padding
|
|
h = 0
|
|
for c in self.children:
|
|
if hasattr(c, 'resize'):
|
|
c.resize()
|
|
h += c.height
|
|
self.width = self.parent.width - ps[0] - ps[2]
|
|
self.height = h
|
|
else:
|
|
Logger.info('resize:parent is null')
|
|
|
|
def build_source(self,source_desc):
|
|
w = MarkdownBody(md_obj=self.md_obj,
|
|
csscls=self.md_obj.second_css, size_hint_y=None)
|
|
w.show_mdtext(source_desc)
|
|
self.add_widget(w)
|
|
w.resize()
|
|
|
|
def build_pure_md(self, mdtext):
|
|
for l in mdtext.split('\n'):
|
|
self.parse_line(l)
|
|
|
|
def build_image(self,img_desc):
|
|
w = MDImage(source=img_desc['url'],
|
|
allow_stretch=True,
|
|
size_hint_y=None,
|
|
height=CSize(10),
|
|
keep_ratio=True
|
|
)
|
|
|
|
self.add_widget(w)
|
|
w.resize()
|
|
|
|
def build_video(self, video_desc):
|
|
w = Factory.NewVideo(source=video_desc['url'],
|
|
keep_ratio=True,
|
|
play=False,
|
|
allow_stretch = True,
|
|
size_hint_y=None
|
|
)
|
|
w.height=self.width * 10 / 16
|
|
w.state = 'pause'
|
|
def f1(x):
|
|
x.state = 'play'
|
|
def f2(x):
|
|
x.state = 'stop'
|
|
|
|
w.bind(on_enter_focus=f1)
|
|
w.bind(on_leave_focus=f2)
|
|
self.add_widget(w)
|
|
w.resize()
|
|
|
|
def build_audio(self, audio_desc):
|
|
w = Factory.APlayer(source=audio_desc.url)
|
|
w.bind(minimum_height=w.setter('height'))
|
|
self.add_widget(w)
|
|
|
|
def parse_title(self, txt, level):
|
|
w = Factory.Blocks().widgetBuild({
|
|
"widgettype":f"Title{level}",
|
|
"options":{
|
|
"text":txt,
|
|
"size_hint_x":None,
|
|
"width":self.width,
|
|
"size_hint_y":None,
|
|
"markup":True,
|
|
"wrap":True,
|
|
"halign":"left",
|
|
"valign":"middle"
|
|
}
|
|
})
|
|
if not w:
|
|
return
|
|
w1,h1 = w.get_wraped_size()
|
|
clen = CSize(1)
|
|
if h1 is None or h1 < clen:
|
|
h1 = clen
|
|
w.height = h1
|
|
w.bind(on_ref_press=self.md_obj.open_new_md)
|
|
self.add_widget(w)
|
|
|
|
def parse_line(self, l):
|
|
if l.startswith('###### '):
|
|
t = self.mktext_bbtext(l[7:])
|
|
return self.parse_title(t,6)
|
|
if l.startswith('##### '):
|
|
t = self.mktext2bbtext(l[6:])
|
|
return self.parse_title(t,5)
|
|
if l.startswith('#### '):
|
|
t = self.mktext2bbtext(l[5:])
|
|
return self.parse_title(t,4)
|
|
if l.startswith('### '):
|
|
t = self.mktext2bbtext(l[4:])
|
|
return self.parse_title(t,3)
|
|
if l.startswith('## '):
|
|
t = self.mktext2bbtext(l[3:])
|
|
return self.parse_title(t,2)
|
|
if l.startswith('# '):
|
|
t = self.mktext2bbtext(l[2:])
|
|
return self.parse_title(t,1)
|
|
t = self.mktext2bbtext(l)
|
|
print('markdown.py, t=', t, 'len(t)=', len(t), 'type(t)=', type(t))
|
|
w = Factory.Blocks().widgetBuild({
|
|
"widgettype":"Text",
|
|
"options":{
|
|
"text":t,
|
|
"wrap":True,
|
|
"size_hint_x":None,
|
|
"width":self.width,
|
|
"markup":True,
|
|
"valign":"middle",
|
|
"halign":"left"
|
|
}
|
|
})
|
|
if not w:
|
|
return
|
|
_,h = w.get_wraped_size()
|
|
clen = CSize(1)
|
|
if h is None or h < clen:
|
|
h = clen
|
|
w.height = h
|
|
w.bind(on_ref_press=self.md_obj.open_new_md)
|
|
self.add_widget(w)
|
|
|
|
def mktext2bbtext(self,mdtext):
|
|
"""
|
|
convert markdown text to bbtag text kivy Label Widget recognized
|
|
|
|
markdown syntax
|
|
*XXX* Italic
|
|
**XXX** Bold
|
|
***XXX*** Bold + Italic
|
|
> XXXX reference
|
|
>> XXXX reference inside reference
|
|
[-*] XXX list
|
|
[0-9]*[.] XXX list
|
|
*** split line
|
|
--- split line
|
|
___ split line
|
|
[.*](url) link
|
|
 image
|
|
[](url) image link
|
|
!v[.*](url) video* plan to extend
|
|
!a[.*](url) audio* plan to extend
|
|
|
|
bb tag syntax
|
|
[b]XXX[/b] Bold
|
|
[i]XXX[/i] Italic
|
|
[sub]XXX[/sub]
|
|
"""
|
|
mdtext = re.sub('\*\*\*(.*)\*\*\*', \
|
|
lambda x: '[b][i]'+x.group(1)+'[/i][/b]', \
|
|
mdtext)
|
|
|
|
mdtext = re.sub('\*\*(.*)\*\*', \
|
|
lambda x: '[b]'+x.group(1)+'[/b]', \
|
|
mdtext)
|
|
|
|
mdtext = re.sub('\*(.*)\*', \
|
|
lambda x: '[i]'+x.group(1)+'[/i]', \
|
|
mdtext)
|
|
|
|
mdtext = re.sub('([^!]?)\[(.*)\]\((.*)\)', \
|
|
lambda x:x.group(1) + '[ref='+x.group(3)+'][color=00ff00]'+ x.group(2)+'[/color][/ref]', \
|
|
mdtext)
|
|
|
|
return mdtext
|
|
|
|
|
|
class Markdown(ScrollView):
|
|
"""
|
|
# Markdown
|
|
MArkdown widget using to render a markdown file and show it
|
|
description file format
|
|
{
|
|
"widgettype":"Markdown",
|
|
"options":{
|
|
"source": the markdown file
|
|
"first_css":,
|
|
"second_css":
|
|
other options
|
|
}
|
|
}
|
|
"""
|
|
source = StringProperty(None)
|
|
first_css = StringProperty("default")
|
|
second_css = StringProperty("default")
|
|
def __init__(self, **kw):
|
|
super(Markdown, self).__init__(**kw)
|
|
self.root_body = MarkdownBody(md_obj=self,
|
|
csscls=self.first_css,
|
|
size_hint_y=None
|
|
)
|
|
self.root_body.bind(minimum_height=self.root_body.setter('height'))
|
|
self.add_widget(self.root_body)
|
|
self.source = kw.get('source')
|
|
if self.source:
|
|
self.load_text()
|
|
self.bind(size=self.root_body.resize)
|
|
self.bind(source=self.load_text)
|
|
|
|
def check_parent_window(self, *args):
|
|
pw = self.get_parent_window()
|
|
rw = self.get_root_window()
|
|
print('MD: pw=%s,rw=%s', pw,rw)
|
|
|
|
def stop_media(self, *args):
|
|
self.root_body.stp_video()
|
|
|
|
def load_text(self, *args):
|
|
h = getDataHandler(self.source)
|
|
h.bind(on_success=self.update)
|
|
h.bind(on_error=self.show_error)
|
|
h.handle()
|
|
|
|
def show_error(self, o, e):
|
|
print('load_text(), error=',e)
|
|
|
|
def update(self, o, text):
|
|
print('text=',text, type(text))
|
|
if not text:
|
|
return
|
|
text = ''.join(text.split('\r'))
|
|
self.root_body.show_mdtext(text)
|
|
self.scroll_y = 1
|
|
|
|
def open_new_md(self, o, value):
|
|
print(value,'is it a link')
|
|
self.source = value
|