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annotate sat_frontends/jp/output_template.py @ 2846:58ea675d0f05

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quick frontend (app): added AUTO_RESYNC attribute in QuickApp, when set (default) the resync method is called on all widgets automatically: if AUTO_RESYNC is False, frontend must call itself the resync method. This is useful to improve performance, resynchronising all widgets at once may be resource intensive, and it may be more efficient to resync a widget only when it is visible.
author Goffi <goffi@goffi.org>
date Sun, 10 Mar 2019 18:02:42 +0100
parents 003b8b4b56a7
children ab2696e34d29
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #! /usr/bin/python
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2 # -*- coding: utf-8 -*-
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3
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4 # jp: a SàT command line tool
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5 # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 """Standard outputs"""
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20
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21
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22 from sat_frontends.jp.constants import Const as C
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23 from sat.core.i18n import _
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24 from sat.core import log
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25 from sat.tools.common import template
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26 from functools import partial
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27 import logging
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28 import webbrowser
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29 import tempfile
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30 import os.path
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31
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32 __outputs__ = ["Template"]
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33 TEMPLATE = u"template"
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34 OPTIONS = {u"template", u"browser", u"inline-css"}
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35
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36
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37 class Template(object):
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38 """outputs data using SàT templates"""
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39
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40 def __init__(self, jp):
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41 self.host = jp
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42 jp.register_output(C.OUTPUT_COMPLEX, TEMPLATE, self.render)
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43
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44 def _front_url_tmp_dir(self, ctx, relative_url, tmp_dir):
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45 """Get front URL for temporary directory"""
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46 template_data = ctx[u'template_data']
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47 return u"file://" + os.path.join(tmp_dir, template_data.theme, relative_url)
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48
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49 def _do_render(self, template_path, css_inline, **kwargs):
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50 try:
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51 return self.renderer.render(template_path, css_inline=css_inline, **kwargs)
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52 except template.TemplateNotFound:
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53 self.host.disp(_(u"Can't find requested template: {template_path}")
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54 .format(template_path=template_path), error=True)
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55 self.host.quit(C.EXIT_NOT_FOUND)
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56
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57 def render(self, data):
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58 """render output data using requested template
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59
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60 template to render the data can be either command's TEMPLATE or
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61 template output_option requested by user.
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62 @param data(dict): data is a dict which map from variable name to use in template
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63 to the variable itself.
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64 command's template_data_mapping attribute will be used if it exists to convert
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65 data to a dict usable by the template.
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66 """
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67 # media_dir is needed for the template
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68 self.host.media_dir = self.host.bridge.getConfig("", "media_dir")
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69 cmd = self.host.command
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70 try:
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71 template_path = cmd.TEMPLATE
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72 except AttributeError:
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73 if not "template" in cmd.args.output_opts:
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74 self.host.disp(_(
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75 u"no default template set for this command, you need to specify a "
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76 u"template using --oo template=[path/to/template.html]"),
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77 error=True,
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78 )
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79 self.host.quit(C.EXIT_BAD_ARG)
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80
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81 options = self.host.parse_output_options()
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82 self.host.check_output_options(OPTIONS, options)
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83 try:
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84 template_path = options["template"]
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85 except KeyError:
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86 # template is not specified, we use default one
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87 pass
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88 if template_path is None:
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89 self.host.disp(_(u"Can't parse template, please check its syntax"),
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90 error=True)
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91 self.host.quit(C.EXIT_BAD_ARG)
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92
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93 try:
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94 mapping_cb = cmd.template_data_mapping
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95 except AttributeError:
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96 kwargs = data
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97 else:
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98 kwargs = mapping_cb(data)
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99
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100 css_inline = u"inline-css" in options
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101
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102 if "browser" in options:
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103 template_name = os.path.basename(template_path)
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104 tmp_dir = tempfile.mkdtemp()
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105 front_url_filter = partial(self._front_url_tmp_dir, tmp_dir=tmp_dir)
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106 self.renderer = template.Renderer(
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107 self.host, front_url_filter=front_url_filter, trusted=True)
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108 rendered = self._do_render(template_path, css_inline=css_inline, **kwargs)
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109 self.host.disp(_(
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110 u"Browser opening requested.\n"
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111 u"Temporary files are put in the following directory, you'll have to "
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112 u"delete it yourself once finished viewing: {}").format(tmp_dir))
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113 tmp_file = os.path.join(tmp_dir, template_name)
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114 with open(tmp_file, "w") as f:
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115 f.write(rendered.encode("utf-8"))
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116 theme, theme_root_path = self.renderer.getThemeAndRoot(template_path)
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117 if theme is None:
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118 # we have an absolute path
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119 webbrowser
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120 static_dir = os.path.join(theme_root_path, C.TEMPLATE_STATIC_DIR)
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121 if os.path.exists(static_dir):
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122 # we have to copy static files in a subdirectory, to avoid file download
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123 # to be blocked by same origin policy
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124 import shutil
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125 shutil.copytree(
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126 static_dir, os.path.join(tmp_dir, theme, C.TEMPLATE_STATIC_DIR)
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127 )
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128 webbrowser.open(tmp_file)
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129 else:
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130 # FIXME: Q&D way to disable template logging
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131 # logs are overcomplicated, and need to be reworked
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132 template_logger = log.getLogger(u"sat.tools.common.template")
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133 template_logger.log = lambda *args: None
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parents: 2624
diff changeset
134
0fa217fafabf tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
parents: 2624
diff changeset
135 logging.disable(logging.WARNING)
0fa217fafabf tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
parents: 2624
diff changeset
136 self.renderer = template.Renderer(self.host, trusted=True)
0fa217fafabf tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
parents: 2624
diff changeset
137 rendered = self._do_render(template_path, css_inline=css_inline, **kwargs)
2163
75667727c500 jp (output): template output first draft:
Goffi <goffi@goffi.org>
parents:
diff changeset
138 self.host.disp(rendered)