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annotate cagou/core/cagou_widget.py @ 357:4d3a0c4f2430

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core: better back key (ESC) management: - back key (which is mapped to esc keycode by SDL2 backend) is now handler with a platform specific method when on root widget (i.e. a default widget is selected, or nothing is selected). Default behaviour is to do nothing, while on Android the app is put to background - CagouWidget now has a default key_input method which go back to default widget.
author Goffi <goffi@goffi.org>
date Sat, 18 Jan 2020 23:12:52 +0100
parents 19422bbd9c8e
children 9ef01266e3fe
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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 # Cagou: desktop/mobile frontend for Salut à Toi XMPP client
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5 # Copyright (C) 2016-2019 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
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20
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21 from sat.core import log as logging
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22 from sat.core import exceptions
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23 from kivy.uix.behaviors import ButtonBehavior
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24 from kivy.uix.boxlayout import BoxLayout
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25 from kivy.uix.dropdown import DropDown
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26 from kivy.uix.screenmanager import Screen
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27 from kivy import properties
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28 from cagou import G
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29 from .common import ActionIcon
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32 log = logging.getLogger(__name__)
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35 class HeaderWidgetChoice(ButtonBehavior, BoxLayout):
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37 def __init__(self, cagou_widget, plugin_info):
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38 self.plugin_info = plugin_info
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39 super(HeaderWidgetChoice, self).__init__()
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40 self.bind(on_release=lambda btn: cagou_widget.switchWidget(plugin_info))
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42
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43 class HeaderWidgetCurrent(ButtonBehavior, ActionIcon):
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44 pass
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46
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47 class HeaderWidgetSelector(DropDown):
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48
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49 def __init__(self, cagou_widget):
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50 super(HeaderWidgetSelector, self).__init__()
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51 plg_info_cls = cagou_widget.plugin_info_class or cagou_widget.__class__
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52 for plugin_info in G.host.getPluggedWidgets(except_cls=plg_info_cls):
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53 choice = HeaderWidgetChoice(cagou_widget, plugin_info)
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54 self.add_widget(choice)
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55
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56 def add_widget(self, *args):
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57 widget = args[0]
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58 widget.bind(minimum_width=self.set_width)
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59 return super(HeaderWidgetSelector, self).add_widget(*args)
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61 def set_width(self, choice, minimum_width):
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62 self.width = max([c.minimum_width for c in self.container.children])
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65 class CagouWidget(BoxLayout):
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66 main_container = properties.ObjectProperty(None)
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67 header_input = properties.ObjectProperty(None)
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68 header_box = properties.ObjectProperty(None)
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69 # set to True if you want to be able to switch between visible widgets of this
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70 # class using a carousel
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71 collection_carousel = False
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72 # set to True if you a global ScreenManager global to all widgets of this class.
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73 # The screen manager is created in WHWrapper
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74 global_screen_manager = False
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75 # override this if a specific class (i.e. not self.__class__) must be used for
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76 # plugin info. Useful when a CagouWidget is used with global_screen_manager.
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77 plugin_info_class = None
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78
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79 def __init__(self, **kwargs):
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80 plg_info_cls = self.plugin_info_class or self.__class__
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81 for p in G.host.getPluggedWidgets():
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82 if p['main'] == plg_info_cls:
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83 self.plugin_info = p
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84 break
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85 super().__init__(**kwargs)
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86 self.selector = HeaderWidgetSelector(self)
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87
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88 @property
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89 def screen_manager(self):
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90 if ((not self.global_screen_manager
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91 and not (self.plugin_info_class is not None
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92 and self.plugin_info_class.global_screen_manager))):
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93 raise exceptions.InternalError(
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94 "screen_manager property can't be used if global_screen_manager is not "
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95 "set")
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96 screen = self.getAncestor(Screen)
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97 if screen is None:
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98 raise exceptions.NotFound("Can't find parent Screen")
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99 if screen.manager is None:
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100 raise exceptions.NotFound("Can't find parent ScreenManager")
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101 return screen.manager
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102
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103 @property
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104 def whwrapper(self):
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105 """Retrieve parent widget handler"""
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106 return G.host.getParentWHWrapper(self)
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107
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108 def screenManagerInit(self, screen_manager):
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109 """Override this method to do init when ScreenManager is instantiated
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110
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111 This is only called once even if collection_carousel is used.
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112 """
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113 if not self.global_screen_manager:
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114 raise exceptions.InternalError("screenManagerInit should not be called")
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115
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116 def getAncestor(self, cls):
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117 """Helper method to use host.getAncestorWidget with self"""
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118 return G.host.getAncestorWidget(self, cls)
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119
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120 def switchWidget(self, plugin_info):
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121 self.selector.dismiss()
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122 factory = plugin_info["factory"]
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123 new_widget = factory(plugin_info, None, iter(G.host.profiles))
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124 G.host.switchWidget(self, new_widget)
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125
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126 def key_input(self, window, key, scancode, codepoint, modifier):
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127 if key == 27:
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128 # we go back to root screen
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129 G.host.switchWidget(self)
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130 return True
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131
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132 def onHeaderInput(self):
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133 log.info("header input text entered")
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134
108
953ddf817b8a cagou widget: added onHeaderInputComplete method which is called when text is changed, and should be used for completion
Goffi <goffi@goffi.org>
parents: 51
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135 def onHeaderInputComplete(self, wid, text):
953ddf817b8a cagou widget: added onHeaderInputComplete method which is called when text is changed, and should be used for completion
Goffi <goffi@goffi.org>
parents: 51
diff changeset
136 return
953ddf817b8a cagou widget: added onHeaderInputComplete method which is called when text is changed, and should be used for completion
Goffi <goffi@goffi.org>
parents: 51
diff changeset
137
51
3f8599d9a766 core: menus first draft:
Goffi <goffi@goffi.org>
parents: 38
diff changeset
138 def on_touch_down(self, touch):
3f8599d9a766 core: menus first draft:
Goffi <goffi@goffi.org>
parents: 38
diff changeset
139 if self.collide_point(*touch.pos):
3f8599d9a766 core: menus first draft:
Goffi <goffi@goffi.org>
parents: 38
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140 G.host.selected_widget = self
158
976f22cb3ecc core (cagou widget): return parent value in on_touch_down
Goffi <goffi@goffi.org>
parents: 126
diff changeset
141 return super(CagouWidget, self).on_touch_down(touch)
115
e0c41f209c28 CagouWidget: instances can now add their own extra widgets in header with headerInputAddExtra
Goffi <goffi@goffi.org>
parents: 108
diff changeset
142
e0c41f209c28 CagouWidget: instances can now add their own extra widgets in header with headerInputAddExtra
Goffi <goffi@goffi.org>
parents: 108
diff changeset
143 def headerInputAddExtra(self, widget):
e0c41f209c28 CagouWidget: instances can now add their own extra widgets in header with headerInputAddExtra
Goffi <goffi@goffi.org>
parents: 108
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144 """add a widget on the right of header input"""
e0c41f209c28 CagouWidget: instances can now add their own extra widgets in header with headerInputAddExtra
Goffi <goffi@goffi.org>
parents: 108
diff changeset
145 self.header_box.add_widget(widget)
264
3e11b5d923e2 core: call new methods onVisible and onNotVisible when a widget is displayed or hidden + fixed a deletion bug on _removeVisibleWidget
Goffi <goffi@goffi.org>
parents: 222
diff changeset
146
3e11b5d923e2 core: call new methods onVisible and onNotVisible when a widget is displayed or hidden + fixed a deletion bug on _removeVisibleWidget
Goffi <goffi@goffi.org>
parents: 222
diff changeset
147 def onVisible(self):
3e11b5d923e2 core: call new methods onVisible and onNotVisible when a widget is displayed or hidden + fixed a deletion bug on _removeVisibleWidget
Goffi <goffi@goffi.org>
parents: 222
diff changeset
148 pass
3e11b5d923e2 core: call new methods onVisible and onNotVisible when a widget is displayed or hidden + fixed a deletion bug on _removeVisibleWidget
Goffi <goffi@goffi.org>
parents: 222
diff changeset
149 # log.debug(u"{self} is visible".format(self=self))
3e11b5d923e2 core: call new methods onVisible and onNotVisible when a widget is displayed or hidden + fixed a deletion bug on _removeVisibleWidget
Goffi <goffi@goffi.org>
parents: 222
diff changeset
150
3e11b5d923e2 core: call new methods onVisible and onNotVisible when a widget is displayed or hidden + fixed a deletion bug on _removeVisibleWidget
Goffi <goffi@goffi.org>
parents: 222
diff changeset
151 def onNotVisible(self):
3e11b5d923e2 core: call new methods onVisible and onNotVisible when a widget is displayed or hidden + fixed a deletion bug on _removeVisibleWidget
Goffi <goffi@goffi.org>
parents: 222
diff changeset
152 pass
3e11b5d923e2 core: call new methods onVisible and onNotVisible when a widget is displayed or hidden + fixed a deletion bug on _removeVisibleWidget
Goffi <goffi@goffi.org>
parents: 222
diff changeset
153 # log.debug(u"{self} is not visible anymore".format(self=self))