omz:forum

**Zed_Oud**

@cook
Thanks for looking at my code. I'm glad to know I hadn't overlooked something silly.

As it is, I am trying to make an extension to re-display or mobilize certain kinds of websites. Imagine if I went to a website full of thumbnails, and the script grabbed all of the linked full-size images. There's other websites and whatnot, but I was mostly playing around with extensions for now.

Thanks again for the help.

**Zed_Oud**

The HTML I'm using works everywhere, but not loaded through in an extension. That's my whole goal, I am trying to replace webbrowser.open("local file") for use in an extension. I haven't tried to load a local image using my HTML doc, I'll try that out.
Here is an example of my HTML when I point it at "http://xkcd.com"

<html>
<body bgcolor="#000000">
<img src="http://imgs.xkcd.com/static/terrible_small_logo.png" alt="http://imgs.xkcd.com/static/terrible_small_logo.png" ><br><br>
<img src="http://imgs.xkcd.com/comics/tire_swing.png" alt="http://imgs.xkcd.com/comics/tire_swing.png" ><br><br>
<img src="http://imgs.xkcd.com/store/te-pages-sb.png" alt="http://imgs.xkcd.com/store/te-pages-sb.png" ><br><br>
<img src="http://imgs.xkcd.com/s/a899e84.jpg" alt="http://imgs.xkcd.com/s/a899e84.jpg" >
</body>
</html>

Here is my full code (cleaned and formatted, but just as dysfunctional when used as an extension):

# coding: utf-8

import appex

from urllib2 import urlopen
import os, console, requests, urlparse

def write_text(name, text, writ='w'):
  with open(name, writ) as o:
    o.write(text)

def img_page(file_list, link_list=None):
  if link_list is None: link_list = file_list
  links = zip(file_list, link_list)
  x = '<br><br>\n'.join(['<img src="{0}" alt="{1}" >'.format(a,b) for a,b in links])
  y = """
<html>
<body bgcolor="#000000">
{0}
</body>
</html>
""".format(x)
  return y
  
def view_doc(text):
  import ui
  w = ui.WebView()
  w.scales_page_to_fit = False
  w.load_html(text)
  w.present()
  
def open_file(file_path):
  import ui
  file_path = os.path.abspath(file_path)
  file_path = urlparse.urljoin('file://', os.path.abspath(file_path))
  #v = ui.View()
  #file_path = 'http://xkcd.com'
  wv = ui.WebView()
  #v.add_subview(wv)
  wv.load_url(file_path)
  #v.frame = (0,0,320,568)
  #wv.frame = (0,0,320,568)
  #v.present()
  wv.present()
  
def view_temp_index(file_url_list):
  temp_fn = '__temp.html'
  write_text(temp_fn, img_page(file_url_list))
  open_file(temp_fn)

def get_Pic_Links_Content(content,url=None):
  from bs4 import BeautifulSoup as bs
  if url is None:
    url = '' # 'http://'
  s = bs(content)
  p = s.findAll('img')
  pics = []
  for x in p:
    y = urlparse.urljoin(url, x['src'])
    if y not in pics:
      pics.append(y)
  return pics

def get_Pic_Links(url):
  r = requests.get(url)
  #print 'viewing pics from url:', r.url
  return get_Pic_Links_Content(r.content, url)
  
def pick(url):
  choice = console.alert('View:','Pick where to view source:','Make File','View Directly','Console')
  pics = get_Pic_Links(url)
  
  if choice == 1:
    view_temp_index(pics)
  elif choice == 2:
    view_doc(img_page(pics))
  else:
    print '\n'.join(pics)

def main():
  if not appex.is_running_extension():
    print '\nRunning using test data...'
    url = 'http://xkcd.com'
  else:
    url = appex.get_url()
  if url:
    pick(url)
  else:
    print 'No input URL found.'

if __name__ == '__main__':
  main()```

**Zed_Oud**

Correct me if I'm wrong, but does the memory limit while running Python as an appex extension prevent us from loading things with WebView.load_url or WebView.load_html ?

I've managed to get a local html file to load, but it will not populate its img tags, images will not load and leave the default blank bar/box ( "<img src="http://url.jpg"> ). The same html file will load perfectly using ui.webview or webbrowser NOT running from an extension (the html doc will work anywhere and everywhere else).

import ui
def view(text):
  v = ui.View()
  wv = ui.WebView()
  v.add_subview(wv)
  wv.load_html(text)
  v.frame = (0,0,320,568)
  wv.frame = (0,0,320,568)
  v.present()

There's a cleaned up example of the function called to run my html doc as a string, though I've also tried running as a local file.