cvp
Mar 07, 2019 - 18:19
DownloadGithubRawFile.py
- use webview to navigate until a Github RAW file to download in Pythonista local files
- of course, an url can be pasted in the url TextField
- a download button will be enabled and has to be tapped
- if Folder_Picker module present, asks user to select directory where to copy the downloaded Github file
- else, file will be downloaded in the Documents root directory
# coding: utf-8
import console
import os
import requests
import sys
import ui
folder_picker = True
try:
from Folder_Picker import folder_picker_dialog
except ModuleNotFoundError as e:
folder_picker = False
class MyView(ui.View):
def __init__(self,w,h):
self.width = w
self.height = h
self.background_color='white'
self.github_url = 'https://github.com/'
self.github_raw = 'https://raw.githubusercontent.com/'
bi_forw = ui.ButtonItem(image=ui.Image.named('iob:ios7_arrow_forward_32'))
bi_forw.action = self.go_forw
bi_back = ui.ButtonItem(image=ui.Image.named('iob:ios7_arrow_back_32'))
bi_back.action = self.go_back
bi_down = ui.ButtonItem(image=ui.Image.named('iob:ios7_cloud_download_outline_32'))
bi_down.action = self.go_down
bi_down.enabled = False
self.right_button_items = (bi_down,bi_forw,bi_back)
tf = ui.TextField(name='url')
tf.clear_button_mode = 'while_editing'
tf.keyboard_type = ui.KEYBOARD_URL
tf.text_color = 'blue'
tf.frame = (2,2,w-2*2,32)
tf.delegate = self
tf.text = 'https://www.google.com/'
self.add_subview(tf)
y = tf.y + tf.height + 2
wv = ui.WebView(name='webview')
wv.frame = (2,y,w-2*2,h-y-2)
wv.delegate = self
wv.border_color = 'blue'
wv.border_width = 1
self.add_subview(wv)
wv.load_url(tf.text)
def webview_did_finish_load(self, webview):
self['url'].text = self.url
# check of github raw
self.right_button_items[0].enabled = False
if self.url[:len(self.github_raw)] == self.github_raw:
# enable raw button
self.right_button_items[0].enabled = True
def webview_should_start_load(self, webview, url, nav_type):
#print('Will start loading', url)
self.url = url
return True
def webview_did_start_load(self, webview):
#print('Started loading')
pass
def textfield_did_end_editing(self, textfield):
#print('did_end_editing',textfield.name,textfield.text)
url = textfield.text
if not (url.startswith('http://') or url.startswith('https://')):
url = 'http://' + url
self['webview'].load_url(url)
def go_forw(self,sender):
self['webview'].go_forward()
def go_back(self,sender):
self['webview'].go_back()
def go_down(self,sender):
# download from the web
try:
url = self['url'].text
r = requests.get(url)
data = r.content
except Exception as e:
console.hud_alert('download error '+str(e),'error',2)
print('download error for url='+url,str(e))
return
# get file name
i = url.rfind('/')
file = url[i+1:]
if folder_picker:
# select folder where to copy
dir = folder_picker_dialog('Select where you want to save')
#print(dir)
if dir == None:
console.hud_alert('folder selection canceled','error',1)
return
else:
t = 'Pythonista3/'
i = dir.find(t)
loc = dir[i+len(t):]
console.hud_alert('File copied on '+loc,'success',2)
else:
# Folder_Picker module does not exist
console.hud_alert('No Folder_Picker, file copied on root','warning',2)
dir = os.path.expanduser('~/Documents') # copy on root
# copy
path = dir + '/' + file
with open(path,mode='wb') as fil:
fil.write(data)
def main():
console.clear()
w, h = ui.get_screen_size()
back = MyView(w, h)
back.present('full_screen')
if __name__ == '__main__':
main()