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annotate pylons_app/lib/helpers.py @ 102:2dc0c8e4f384

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Updated tempaltes, added file browser breadcrumbs, and feed icons
author Marcin Kuzminski <marcin@python-works.com>
date Sun, 25 Apr 2010 18:42:58 +0200
parents 01d0f363f36d
children 4cea52709743
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1 """Helper functions
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2
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3 Consists of functions to typically be used within templates, but also
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4 available to Controllers. This module is available to both as 'h'.
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5 """
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6 from pylons import url
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7 from pylons.i18n.translation import _, ungettext
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8 from webhelpers.html import (literal, HTML, escape)
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9 from webhelpers.html.builder import make_tag
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10 from webhelpers.html.tools import (auto_link, button_to, highlight, js_obfuscate
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11 , mail_to, strip_links, strip_tags, tag_re)
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12 from webhelpers.html.tags import (auto_discovery_link, checkbox, css_classes,
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13 end_form, file, form, hidden, image,
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14 javascript_link, link_to, link_to_if,
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15 link_to_unless, ol, required_legend,
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16 select, stylesheet_link,
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17 submit, text, password, textarea, title,
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18 ul, xml_declaration)
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19 from webhelpers.text import (chop_at, collapse, convert_accented_entities,
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20 convert_misc_entities, lchop, plural, rchop,
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21 remove_formatting, replace_whitespace, urlify)
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22
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23 from webhelpers.pylonslib import Flash as _Flash
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24 from webhelpers.pylonslib.secure_form import secure_form
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25
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26 from pygments import highlight
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27 from pygments.formatters import HtmlFormatter
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28 from pygments.lexers import guess_lexer
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29 from pygments.lexers import get_lexer_by_name
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30
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31 #Custom helper here :)
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32 class _Link(object):
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33 '''
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34 Make a url based on label and url with help of url_for
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35 @param label:name of link if not defined url is used
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36 @param url: the url for link
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37 '''
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38
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39 def __call__(self, label='', *url_, **urlargs):
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40 if label is None or '':
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41 label = url
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42 link_fn = link_to(label, url(*url_, **urlargs))
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43 return link_fn
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44
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45
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46 class _GetError(object):
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47
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48 def __call__(self, field_name, form_errors):
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49 tmpl = """<span class="error_msg">%s</span>"""
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50 if form_errors and form_errors.has_key(field_name):
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51 return literal(tmpl % form_errors.get(field_name))
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52
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53 class _FileSizeFormat(object):
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54 """
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55 Formats the value like a 'human-readable' file size (i.e. 13 KB, 4.1 MB,
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56 102 bytes, etc).
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57 """
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58 def __call__(self, bytes):
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59 try:
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60 bytes = float(bytes)
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61 except TypeError:
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62 return u"0 bytes"
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63
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64 if bytes < 1024:
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65 return ungettext("%(size)d byte", "%(size)d bytes", bytes) % {'size': bytes}
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66 if bytes < 1024 * 1024:
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67 return _("%.1f KB") % (bytes / 1024)
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68 if bytes < 1024 * 1024 * 1024:
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69 return _("%.1f MB") % (bytes / (1024 * 1024))
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70 return _("%.1f GB") % (bytes / (1024 * 1024 * 1024))
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71
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72 class _FilesBreadCrumbs(object):
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73
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74 def __call__(self, repo_name, rev, paths):
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75 url_l = [link_to(repo_name, url('files_home', repo_name=repo_name, f_path=''))]
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76 paths_l = paths.split('/')
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78 for cnt, p in enumerate(paths_l, 1):
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79 if p != '':
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80 url_l.append(link_to(p, url('files_home', repo_name=repo_name, f_path='/'.join(paths_l[:cnt]))))
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81
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82 return literal(' / '.join(url_l))
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83
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84 def pygmentize(code, **kwargs):
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85 '''
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86 Filter for chunks of html to replace code tags with pygmented code
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87 '''
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88 return literal(highlight(code, guess_lexer(code), HtmlFormatter(**kwargs)))
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89
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91 files_breadcrumbs = _FilesBreadCrumbs()
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92 filesizeformat = _FileSizeFormat()
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93 link = _Link()
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94 flash = _Flash()
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95 get_error = _GetError()