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annotate src/browser/sat_browser/notification.py @ 850:c64c039bb403

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server (themes/default): display later and older messages link also in the footer (when only one message is displayed)
author souliane <souliane@mailoo.org>
date Fri, 15 Jan 2016 18:00:07 +0100
parents 620306b3d5be
children
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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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souliane <souliane@mailoo.org>
parents: 714
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143 @param count (int): primary counter
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souliane <souliane@mailoo.org>
parents: 714
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144 @param extra (int): extra counter
2491898b3041 browser (chat, notification): remove the textual alerts counter, merge it with the favicon counter
souliane <souliane@mailoo.org>
parents: 714
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145 """
2491898b3041 browser (chat, notification): remove the textual alerts counter, merge it with the favicon counter
souliane <souliane@mailoo.org>
parents: 714
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146 if count is not None:
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souliane <souliane@mailoo.org>
parents: 714
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147 self.count = count
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souliane <souliane@mailoo.org>
parents: 714
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148 if extra is not None:
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souliane <souliane@mailoo.org>
parents: 714
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149 self.extra = extra
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souliane <souliane@mailoo.org>
parents: 714
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150 self.counter.badge(self.count + self.extra)