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annotate libervia/web/pages/_browser/dialog.py @ 1589:7228fc3c4744

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browser (dialog): be sure to remove dialog on `OK` and `Cancel` click + avoid side effects
author Goffi <goffi@goffi.org>
date Sun, 10 Dec 2023 11:00:44 +0100
parents e47c24204449
children 0a4433a343a3
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1 """manage common dialogs"""
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2
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3 from browser import document, window, timer, console as log
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4 from template import Template
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5
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6 log.warning = log.warn
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7
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9 class CancelError(Exception):
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10 """Dialog is cancelled"""
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11
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12
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13 class Confirm:
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14
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15 def __init__(self, message, ok_label="", cancel_label="", ok_color="success"):
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16 self._tpl = Template("dialogs/confirm.html")
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17 self.message = message
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18 self.ok_label = ok_label
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19 assert ok_color in ("success", "danger")
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20 self.ok_color = ok_color
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21 self.cancel_label = cancel_label
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22 self._notif_elt = None
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23 self.reset()
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24
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25 def reset(self):
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26 """Reset values of callbacks and notif element"""
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27 self._ok_cb = None
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28 self._cancel_cb = None
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29 self._reject_cb = None
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30 if self._notif_elt is not None:
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31 self._notif_elt.remove()
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32 self._notif_elt = None
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33
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34 def _default_cancel_cb(self, evt, notif_elt):
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35 notif_elt.remove()
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36
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37 def cancel(self):
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38 """Cancel the dialog, without calling any callback
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39
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40 will raise a CancelError
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41 """
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42 if self._notif_elt is None:
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43 log.warning("calling cancel on an unshown dialog")
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44 else:
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45 self._notif_elt.remove()
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46 self._notif_elt = None
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47 if self._reject_cb is not None:
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48 self._reject_cb(CancelError)
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49 else:
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50 log.warning("no reject callback set")
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51 self.reset()
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52
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53 def on_ok_click(self, evt):
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54 evt.preventDefault()
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55 evt.stopPropagation()
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56 assert self._ok_cb is not None
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57 self._ok_cb(evt, self._notif_elt)
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58 self.reset()
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59
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60 def on_cancel_click(self, evt) -> None:
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61 evt.preventDefault()
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62 evt.stopPropagation()
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63 assert self._cancel_cb is not None
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64 self._cancel_cb(evt, self._notif_elt)
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65 self.reset()
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66
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67 def show(self, ok_cb, cancel_cb=None, reject_cb=None):
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68 if cancel_cb is None:
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69 cancel_cb = self._default_cancel_cb
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70 self._ok_cb = ok_cb
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71 self._cancel_cb = cancel_cb
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72 self._reject_cb = reject_cb
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73 notif_elt = self._tpl.get_elt({
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74 "message": self.message,
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75 "ok_label": self.ok_label,
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76 "ok_color": self.ok_color,
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77 "cancel_label": self.cancel_label,
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78 })
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79 self._notif_elt = notif_elt
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80
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81 document['notifs_area'] <= notif_elt
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82 timer.set_timeout(lambda: notif_elt.classList.add('state_appended'), 0)
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83 for ok_elt in notif_elt.select(".click_to_ok"):
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84 ok_elt.bind("click", self.on_ok_click)
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85 for ok_elt in notif_elt.select(".click_to_cancel"):
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86 ok_elt.bind("click", self.on_cancel_click)
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87
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88 def _ashow_cb(self, evt, notif_elt, resolve_cb, confirmed):
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89 evt.stopPropagation()
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90 notif_elt.remove()
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91 resolve_cb(confirmed)
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92
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93 async def ashow(self):
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94 return window.Promise.new(
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95 lambda resolve_cb, reject_cb:
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96 self.show(
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97 lambda evt, notif_elt: self._ashow_cb(evt, notif_elt, resolve_cb, True),
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98 lambda evt, notif_elt: self._ashow_cb(evt, notif_elt, resolve_cb, False),
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99 reject_cb
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100 )
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101 )
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102
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103
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104 class Notification:
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105
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106 def __init__(self):
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107 self._tpl = Template("dialogs/notification.html")
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108
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109 def close(self, notif_elt):
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110 notif_elt.classList.remove('state_appended')
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111 notif_elt.bind("transitionend", lambda __: notif_elt.remove())
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112
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113 def show(
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114 self,
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115 message: str,
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116 level: str = "info",
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117 delay: int = 5
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118 ) -> None:
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119 # we log in console error messages, may be useful
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120 if level in ("warning", "error"):
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121 print(f"[{level}] {message}")
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122 notif_elt = self._tpl.get_elt({
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123 "message": message,
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124 "level": level,
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125 })
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126 document["notifs_area"] <= notif_elt
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127 timer.set_timeout(lambda: notif_elt.classList.add('state_appended'), 0)
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parents: 1299
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128 timer.set_timeout(lambda: self.close(notif_elt), delay * 1000)
683e50799d6d browser (dialog): new class to handle notifications
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parents: 1299
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129 for elt in notif_elt.select('.click_to_close'):
683e50799d6d browser (dialog): new class to handle notifications
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130 elt.bind('click', lambda __: self.close(notif_elt))
683e50799d6d browser (dialog): new class to handle notifications
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131
683e50799d6d browser (dialog): new class to handle notifications
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132
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Goffi <goffi@goffi.org>
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133 class RetryNotification:
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Goffi <goffi@goffi.org>
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134 def __init__(self, retry_cb):
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135 self._tpl = Template("dialogs/retry-notification.html")
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136 self.retry_cb = retry_cb
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Goffi <goffi@goffi.org>
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137 self.counter = 0
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138 self.timer = None
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139
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140 def retry(self, notif_elt):
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141 if self.timer is not None:
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Goffi <goffi@goffi.org>
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142 timer.clear_interval(self.timer)
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143 self.timer = None
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Goffi <goffi@goffi.org>
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144 notif_elt.classList.remove('state_appended')
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145 notif_elt.bind("transitionend", lambda __: notif_elt.remove())
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Goffi <goffi@goffi.org>
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146 self.retry_cb()
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147
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148 def update_counter(self, notif_elt):
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Goffi <goffi@goffi.org>
parents: 1385
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149 counter = notif_elt.select_one(".retry_counter")
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Goffi <goffi@goffi.org>
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150 counter.text = str(self.counter)
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Goffi <goffi@goffi.org>
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151 self.counter -= 1
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Goffi <goffi@goffi.org>
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152 if self.counter < 0:
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Goffi <goffi@goffi.org>
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153 self.retry(notif_elt)
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154
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155 def show(
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156 self,
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157 message: str,
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158 level: str = "warning",
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Goffi <goffi@goffi.org>
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159 delay: int = 5
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Goffi <goffi@goffi.org>
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160 ) -> None:
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Goffi <goffi@goffi.org>
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161 # we log in console error messages, may be useful
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162 if level == "error":
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163 log.error(message)
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Goffi <goffi@goffi.org>
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164 elif level == "warning":
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165 log.warning(message)
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Goffi <goffi@goffi.org>
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166 self.counter = delay
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Goffi <goffi@goffi.org>
parents: 1385
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167 notif_elt = self._tpl.get_elt({
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168 "message": message,
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169 "level": level,
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170 })
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Goffi <goffi@goffi.org>
parents: 1385
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171 self.update_counter(notif_elt)
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Goffi <goffi@goffi.org>
parents: 1385
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172 document["notifs_area"] <= notif_elt
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Goffi <goffi@goffi.org>
parents: 1385
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173 timer.set_timeout(lambda: notif_elt.classList.add('state_appended'), 0)
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Goffi <goffi@goffi.org>
parents: 1385
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174 self.timer = timer.set_interval(self.update_counter, 1000, notif_elt)
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Goffi <goffi@goffi.org>
parents: 1385
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175 for elt in notif_elt.select('.click_to_retry'):
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Goffi <goffi@goffi.org>
parents: 1385
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176 elt.bind('click', lambda __: self.retry(notif_elt))
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parents: 1385
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177
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178
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179
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180
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683e50799d6d browser (dialog): new class to handle notifications
Goffi <goffi@goffi.org>
parents: 1299
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181 notification = Notification()