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annotate libervia/web/pages/_browser/dialog.py @ 1611:b695b98851fc

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pages (events/new): use coroutines.
author Goffi <goffi@goffi.org>
date Wed, 12 Jun 2024 23:09:49 +0200
parents 0a4433a343a3
children
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rev   line source
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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 def __init__(self, reason: str = "", text: str = "") -> None:
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13 self.reason = reason
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14 self.text = text
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15 super().__init__(text)
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16
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17
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18 class Confirm:
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19
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20 def __init__(self, message, ok_label="", cancel_label="", ok_color="success"):
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21 self._tpl = Template("dialogs/confirm.html")
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22 self.message = message
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23 self.ok_label = ok_label
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24 assert ok_color in ("success", "danger")
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25 self.ok_color = ok_color
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26 self.cancel_label = cancel_label
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27 self._notif_elt = None
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28 self.reset()
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29
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30 def reset(self):
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31 """Reset values of callbacks and notif element"""
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32 self._ok_cb = None
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33 self._cancel_cb = None
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34 self._reject_cb = None
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35 if self._notif_elt is not None:
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36 self._notif_elt.remove()
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37 self._notif_elt = None
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38
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39 def _default_cancel_cb(self, evt, notif_elt):
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40 notif_elt.remove()
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41
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42 def cancel(self, reason: str = "", text: str = ""):
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43 """Cancel the dialog, without calling any callback
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44
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45 will raise a CancelError
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46 """
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47 if self._notif_elt is None:
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48 log.warning("calling cancel on an unshown dialog")
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49 else:
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50 self._notif_elt.remove()
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51 self._notif_elt = None
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52 if self._reject_cb is not None:
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53 self._reject_cb(CancelError(reason, text))
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54 else:
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55 log.warning("no reject callback set")
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56 self.reset()
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57
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58 def on_ok_click(self, evt):
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59 evt.preventDefault()
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60 evt.stopPropagation()
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61 assert self._ok_cb is not None
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62 self._ok_cb(evt, self._notif_elt)
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63 self.reset()
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64
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65 def on_cancel_click(self, evt) -> None:
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66 evt.preventDefault()
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67 evt.stopPropagation()
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68 assert self._cancel_cb is not None
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69 self._cancel_cb(evt, self._notif_elt)
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70 self.reset()
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71
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72 def show(self, ok_cb, cancel_cb=None, reject_cb=None):
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73 if cancel_cb is None:
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74 cancel_cb = self._default_cancel_cb
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75 self._ok_cb = ok_cb
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76 self._cancel_cb = cancel_cb
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77 self._reject_cb = reject_cb
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78 notif_elt = self._tpl.get_elt({
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79 "message": self.message,
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80 "ok_label": self.ok_label,
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81 "ok_color": self.ok_color,
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82 "cancel_label": self.cancel_label,
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83 })
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84 self._notif_elt = notif_elt
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85
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86 document['notifs_area'] <= notif_elt
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87 timer.set_timeout(lambda: notif_elt.classList.add('state_appended'), 0)
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88 for ok_elt in notif_elt.select(".click_to_ok"):
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89 ok_elt.bind("click", self.on_ok_click)
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90 for ok_elt in notif_elt.select(".click_to_cancel"):
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91 ok_elt.bind("click", self.on_cancel_click)
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92
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93 def _ashow_cb(self, evt, notif_elt, resolve_cb, confirmed):
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94 evt.stopPropagation()
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95 notif_elt.remove()
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96 resolve_cb(confirmed)
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97
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98 async def ashow(self):
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99 return window.Promise.new(
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100 lambda resolve_cb, reject_cb:
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101 self.show(
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102 lambda evt, notif_elt: self._ashow_cb(evt, notif_elt, resolve_cb, True),
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103 lambda evt, notif_elt: self._ashow_cb(evt, notif_elt, resolve_cb, False),
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104 reject_cb
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105 )
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106 )
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107
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108
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109 class Notification:
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110
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111 def __init__(self):
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112 self._tpl = Template("dialogs/notification.html")
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113
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114 def close(self, notif_elt):
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115 notif_elt.classList.remove('state_appended')
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116 notif_elt.bind("transitionend", lambda __: notif_elt.remove())
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117
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118 def show(
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119 self,
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120 message: str,
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121 level: str = "info",
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122 delay: int = 5
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123 ) -> None:
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124 # we log in console error messages, may be useful
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125 if level in ("warning", "error"):
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126 print(f"[{level}] {message}")
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127 notif_elt = self._tpl.get_elt({
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128 "message": message,
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129 "level": level,
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130 })
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131 document["notifs_area"] <= notif_elt
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132 timer.set_timeout(lambda: notif_elt.classList.add('state_appended'), 0)
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133 timer.set_timeout(lambda: self.close(notif_elt), delay * 1000)
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134 for elt in notif_elt.select('.click_to_close'):
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135 elt.bind('click', lambda __: self.close(notif_elt))
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136
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137
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138 class RetryNotification:
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139 def __init__(self, retry_cb):
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140 self._tpl = Template("dialogs/retry-notification.html")
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141 self.retry_cb = retry_cb
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142 self.counter = 0
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143 self.timer = None
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144
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145 def retry(self, notif_elt):
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146 if self.timer is not None:
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147 timer.clear_interval(self.timer)
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148 self.timer = None
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149 notif_elt.classList.remove('state_appended')
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150 notif_elt.bind("transitionend", lambda __: notif_elt.remove())
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151 self.retry_cb()
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152
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153 def update_counter(self, notif_elt):
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154 counter = notif_elt.select_one(".retry_counter")
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155 counter.text = str(self.counter)
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156 self.counter -= 1
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157 if self.counter < 0:
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158 self.retry(notif_elt)
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159
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160 def show(
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161 self,
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162 message: str,
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163 level: str = "warning",
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164 delay: int = 5
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165 ) -> None:
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166 # we log in console error messages, may be useful
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167 if level == "error":
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168 log.error(message)
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169 elif level == "warning":
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170 log.warning(message)
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171 self.counter = delay
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172 notif_elt = self._tpl.get_elt({
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173 "message": message,
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174 "level": level,
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175 })
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176 self.update_counter(notif_elt)
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177 document["notifs_area"] <= notif_elt
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178 timer.set_timeout(lambda: notif_elt.classList.add('state_appended'), 0)
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179 self.timer = timer.set_interval(self.update_counter, 1000, notif_elt)
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180 for elt in notif_elt.select('.click_to_retry'):
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181 elt.bind('click', lambda __: self.retry(notif_elt))
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182
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183
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184
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185
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186 notification = Notification()