Mercurial > libervia-web
annotate browser/sat_browser/notification.py @ 1143:7bd47d32da87
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there is currently no way to edit XHTML directly inside the browser with Libervia pages, this patch works around this by doing a conversion to/from markdown.
author | Goffi <goffi@goffi.org> |
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date | Sat, 19 Jan 2019 11:42:37 +0100 |
parents | 28e3eb3bb217 |
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1 from __pyjamas__ import JS, wnd |
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2 from sat.core.log import getLogger |
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3 log = getLogger(__name__) |
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4 from sat.core.i18n import _ |
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5 |
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6 from pyjamas import Window |
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7 from pyjamas.Timer import Timer |
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8 import favico.min.js |
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9 |
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10 import dialog |
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11 |
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12 TIMER_DELAY = 5000 |
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13 |
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14 |
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15 class Notification(object): |
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16 """ |
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17 If the browser supports it, the user allowed it to and the tab is in the |
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18 background, send desktop notifications on messages. |
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19 |
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20 Requires both Web Notifications and Page Visibility API. |
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21 """ |
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22 |
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23 def __init__(self, alerts_counter): |
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24 """ |
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25 |
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26 @param alerts_counter (FaviconCounter): counter instance |
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27 """ |
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28 self.alerts_counter = alerts_counter |
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29 self.enabled = False |
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30 user_agent = None |
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31 notif_permission = None |
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32 JS(""" |
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33 if (!('hidden' in document)) |
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34 document.hidden = false; |
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35 |
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36 user_agent = navigator.userAgent |
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37 |
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38 if (!('Notification' in window)) |
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39 return; |
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40 |
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41 notif_permission = Notification.permission |
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42 |
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43 if (Notification.permission === 'granted') |
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44 this.enabled = true; |
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45 |
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46 else if (Notification.permission === 'default') { |
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47 Notification.requestPermission(function(permission){ |
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48 if (permission !== 'granted') |
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49 return; |
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50 |
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51 self.enabled = true; //need to use self instead of this |
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52 }); |
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53 } |
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54 """) |
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55 |
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56 if "Chrome" in user_agent and notif_permission not in ['granted', 'denied']: |
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57 self.user_agent = user_agent |
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58 self._installChromiumWorkaround() |
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59 |
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60 wnd().onfocus = self.onFocus |
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61 # wnd().onblur = self.onBlur |
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62 |
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63 def _installChromiumWorkaround(self): |
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64 # XXX: Workaround for Chromium behaviour, it's doens't manage requestPermission on onLoad event |
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65 # see https://code.google.com/p/chromium/issues/detail?id=274284 |
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66 # FIXME: need to be removed if Chromium behaviour changes |
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67 try: |
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68 version_full = [s for s in self.user_agent.split() if "Chrome" in s][0].split('/')[1] |
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69 version = int(version_full.split('.')[0]) |
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70 except (IndexError, ValueError): |
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71 log.warning("Can't find Chromium version") |
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72 version = 0 |
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73 log.info("Chromium version: %d" % (version,)) |
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74 if version < 22: |
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75 log.info("Notification use the old prefixed version or are unmanaged") |
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76 return |
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77 if version < 32: |
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78 dialog.InfoDialog(_("Notifications activation for Chromium"), _('You need to activate notifications manually for your Chromium version.<br/>To activate notifications, click on the favicon on the left of the address bar')).show() |
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79 return |
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80 |
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81 log.info("==> Installing Chromium notifications request workaround <==") |
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82 self._old_click = wnd().onclick |
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83 wnd().onclick = self._chromiumWorkaround |
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84 |
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85 def _chromiumWorkaround(self): |
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86 log.info("Activating workaround") |
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87 JS(""" |
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88 Notification.requestPermission(function(permission){ |
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89 if (permission !== 'granted') |
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90 return; |
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91 self.enabled = true; //need to use self instead of this |
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92 }); |
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93 """) |
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94 wnd().onclick = self._old_click |
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95 |
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96 def onFocus(self, event=None): |
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97 self.alerts_counter.update(extra=0) |
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98 |
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99 # def onBlur(self, event=None): |
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100 # pass |
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101 |
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102 def isHidden(self): |
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103 JS("""return document.hidden;""") |
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104 |
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105 def _notify(self, title, body, icon): |
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106 if not self.enabled: |
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107 return |
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108 notification = None |
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109 # FIXME: icon has been removed because the notification can't display a HTTPS file |
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110 JS(""" |
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111 notification = new Notification(title, {body: body}); |
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112 // Probably won’t work, but it doesn’t hurt to try. |
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113 notification.addEventListener('click', function() { |
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114 window.focus(); |
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115 }); |
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116 """) |
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117 notification.onshow = lambda: Timer(TIMER_DELAY, lambda timer: notification.close()) |
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118 |
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119 def notify(self, title, body, icon='/media/icons/apps/48/sat.png'): |
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120 if self.isHidden(): |
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121 self._notify(title, body, icon) |
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122 |
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123 |
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124 class FaviconCounter(object): |
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125 """Display numbers over the favicon to signal e.g. waiting messages""" |
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126 |
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127 def __init__(self): |
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128 # XXX: the file favico.min.js is loaded from public/libervia.html because I get NS_ERROR_FAILURE when it's loaded with Pyjamas. It sounds like a context issue, with the favicon not being found. |
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129 |
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130 JS(""" |
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131 self.counter = new top.Favico({ |
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132 animation : 'slide', |
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133 bgColor: '#5CB85C', |
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134 }); |
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135 """) |
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136 |
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137 self.count = 0 # messages that are not displayed |
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138 self.extra = 0 # messages that are displayed but the window is hidden |
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139 |
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140 def update(self, count=None, extra=None): |
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141 """Update the favicon counter. |
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142 |
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143 @param count (int): primary counter |
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144 @param extra (int): extra counter |
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145 """ |
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146 if count is not None: |
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147 self.count = count |
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148 if extra is not None: |
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149 self.extra = extra |
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150 self.counter.badge(self.count + self.extra) |