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annotate src/browser/sat_browser/base_panel.py @ 704:5319110a862c

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server_side: static blog uses the default template
author souliane <souliane@mailoo.org>
date Thu, 04 Jun 2015 12:39:27 +0200
parents 9877607c719a
children e4ae8e2b0afd
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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 # Libervia: a Salut à Toi frontend
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5 # Copyright (C) 2011, 2012, 2013, 2014, 2015 Jérôme Poisson <goffi@goffi.org>
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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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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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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 from sat.core.log import getLogger
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21 log = getLogger(__name__)
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22 from sat.core.i18n import _
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24 from pyjamas.ui.VerticalPanel import VerticalPanel
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25 from pyjamas.ui.HorizontalPanel import HorizontalPanel
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26 from pyjamas.ui.ScrollPanel import ScrollPanel
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27 from pyjamas.ui.Button import Button
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28 from pyjamas.ui.SimplePanel import SimplePanel
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29 from pyjamas.ui.PopupPanel import PopupPanel
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30 from pyjamas.ui.StackPanel import StackPanel
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31 from pyjamas.ui.TextArea import TextArea
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32 from pyjamas.ui.Event import BUTTON_LEFT, BUTTON_MIDDLE, BUTTON_RIGHT
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33 from pyjamas import DOM
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35
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36 ### Menus ###
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38
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39 class PopupMenuPanel(PopupPanel):
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40 """This implementation of a popup menu (context menu) allow you to assign
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41 two special methods which are common to all the items, in order to hide
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42 certain items and also easily define their callbacks. The menu can be
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43 bound to any of the mouse button (left, middle, right).
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44 """
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45 def __init__(self, entries, hide=None, callback=None, vertical=True, style=None, **kwargs):
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46 """
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47 @param entries: a dict of dicts, where each sub-dict is representing
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48 one menu item: the sub-dict key can be used as the item text and
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49 description, but optional "title" and "desc" entries would be used
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50 if they exists. The sub-dicts may be extended later to do
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51 more complicated stuff or overwrite the common methods.
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52 @param hide: function with 2 args: widget, key as string and
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53 returns True if that item should be hidden from the context menu.
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54 @param callback: function with 2 args: sender, key as string
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55 @param vertical: True or False, to set the direction
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56 @param item_style: alternative CSS class for the menu items
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57 @param menu_style: supplementary CSS class for the sender widget
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58 """
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59 PopupPanel.__init__(self, autoHide=True, **kwargs)
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60 self._entries = entries
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61 self._hide = hide
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62 self._callback = callback
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63 self.vertical = vertical
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64 self.style = {"selected": None, "menu": "itemKeyMenu", "item": "popupMenuItem"}
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65 if isinstance(style, dict):
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66 self.style.update(style)
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67 self._senders = {}
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68
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69 def _show(self, sender):
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70 """Popup the menu relative to this sender's position.
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71 @param sender: the widget that has been clicked
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72 """
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73 menu = VerticalPanel() if self.vertical is True else HorizontalPanel()
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74 menu.setStyleName(self.style["menu"])
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75
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76 def button_cb(item):
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77 """You can not put that method in the loop and rely
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78 on _key, because it is overwritten by each step.
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79 You can rely on item.key instead, which is copied
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80 from _key after the item creation.
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81 @param item: the menu item that has been clicked
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82 """
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83 if self._callback is not None:
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84 self._callback(sender=sender, key=item.key)
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85 self.hide(autoClosed=True)
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86
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87 for _key in self._entries.keys():
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88 entry = self._entries[_key]
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89 if self._hide is not None and self._hide(sender=sender, key=_key) is True:
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90 continue
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91 title = entry["title"] if "title" in entry.keys() else _key
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92 item = Button(title, button_cb)
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93 item.key = _key
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94 item.setStyleName(self.style["item"])
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95 item.setTitle(entry["desc"] if "desc" in entry.keys() else title)
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96 menu.add(item)
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97 if len(menu.getChildren()) == 0:
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98 return
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99 self.add(menu)
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100 if self.vertical is True:
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101 x = sender.getAbsoluteLeft() + sender.getOffsetWidth()
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102 y = sender.getAbsoluteTop()
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103 else:
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104 x = sender.getAbsoluteLeft()
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105 y = sender.getAbsoluteTop() + sender.getOffsetHeight()
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106 self.setPopupPosition(x, y)
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107 self.show()
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108 if self.style["selected"]:
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109 sender.addStyleDependentName(self.style["selected"])
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110
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111 def _onHide(popup):
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112 if self.style["selected"]:
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113 sender.removeStyleDependentName(self.style["selected"])
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114 return PopupPanel.onHideImpl(self, popup)
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115
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116 self.onHideImpl = _onHide
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117
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118 def registerClickSender(self, sender, button=BUTTON_LEFT):
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119 """Bind the menu to the specified sender.
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120 @param sender: the widget to which the menu should be bound
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121 @param: BUTTON_LEFT, BUTTON_MIDDLE or BUTTON_RIGHT
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122 """
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123 self._senders.setdefault(sender, [])
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124 self._senders[sender].append(button)
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125
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126 if button == BUTTON_RIGHT:
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127 # WARNING: to disable the context menu is a bit tricky...
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128 # The following seems to work on Firefox 24.0, but:
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129 # TODO: find a cleaner way to disable the context menu
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130 sender.getElement().setAttribute("oncontextmenu", "return false")
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131
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132 def _onBrowserEvent(event):
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133 button = DOM.eventGetButton(event)
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134 if DOM.eventGetType(event) == "mousedown" and button in self._senders[sender]:
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135 self._show(sender)
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136 return sender.__class__.onBrowserEvent(sender, event)
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137
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138 sender.onBrowserEvent = _onBrowserEvent
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139
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140 def registerMiddleClickSender(self, sender):
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141 self.registerClickSender(sender, BUTTON_MIDDLE)
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142
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143 def registerRightClickSender(self, sender):
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144 self.registerClickSender(sender, BUTTON_RIGHT)
264
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145
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146
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147 ### Generic panels ###
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148
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149
264
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150 class ToggleStackPanel(StackPanel):
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151 """This is a pyjamas.ui.StackPanel with modified behavior. All sub-panels ca be
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152 visible at the same time, clicking a sub-panel header will not display it and hide
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153 the others but only toggle its own visibility. The argument 'visibleStack' is ignored.
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154 Note that the argument 'visible' has been added to listener's 'onStackChanged' method.
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155 """
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156
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157 def __init__(self, **kwargs):
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158 StackPanel.__init__(self, **kwargs)
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159
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160 def onBrowserEvent(self, event):
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161 if DOM.eventGetType(event) == "click":
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162 index = self.getDividerIndex(DOM.eventGetTarget(event))
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163 if index != -1:
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164 self.toggleStack(index)
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165
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166 def add(self, widget, stackText="", asHTML=False, visible=False):
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167 StackPanel.add(self, widget, stackText, asHTML)
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168 self.setStackVisible(self.getWidgetCount() - 1, visible)
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169
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170 def toggleStack(self, index):
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171 if index >= self.getWidgetCount():
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172 return
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173 visible = not self.getWidget(index).getVisible()
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174 self.setStackVisible(index, visible)
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175 for listener in self.stackListeners:
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176 listener.onStackChanged(self, index, visible)
346
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177
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178
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179 class TitlePanel(ToggleStackPanel):
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180 """A toggle panel to set the message title"""
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181 def __init__(self):
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182 ToggleStackPanel.__init__(self, Width="100%")
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183 self.text_area = TextArea()
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184 self.add(self.text_area, _("Title"))
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185 self.addStackChangeListener(self)
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186
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187 def onStackChanged(self, sender, index, visible=None):
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188 if visible is None:
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189 visible = sender.getWidget(index).getVisible()
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190 text = self.text_area.getText()
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191 suffix = "" if (visible or not text) else (": %s" % text)
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192 sender.setStackText(index, _("Title") + suffix)
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193
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194 def getText(self):
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195 return self.text_area.getText()
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196
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197 def setText(self, text):
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198 self.text_area.setText(text)
347
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199
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200
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201 class ScrollPanelWrapper(SimplePanel):
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202 """Scroll Panel like component, wich use the full available space
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203 to work around percent size issue, it use some of the ideas found
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204 here: http://code.google.com/p/google-web-toolkit/issues/detail?id=316
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205 specially in code given at comment #46, thanks to Stefan Bachert"""
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206
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207 def __init__(self, *args, **kwargs):
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208 SimplePanel.__init__(self)
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209 self.spanel = ScrollPanel(*args, **kwargs)
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210 SimplePanel.setWidget(self, self.spanel)
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211 DOM.setStyleAttribute(self.getElement(), "position", "relative")
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212 DOM.setStyleAttribute(self.getElement(), "top", "0px")
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213 DOM.setStyleAttribute(self.getElement(), "left", "0px")
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214 DOM.setStyleAttribute(self.getElement(), "width", "100%")
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215 DOM.setStyleAttribute(self.getElement(), "height", "100%")
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216 DOM.setStyleAttribute(self.spanel.getElement(), "position", "absolute")
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217 DOM.setStyleAttribute(self.spanel.getElement(), "width", "100%")
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218 DOM.setStyleAttribute(self.spanel.getElement(), "height", "100%")
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219
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220 def setWidget(self, widget):
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221 self.spanel.setWidget(widget)
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222
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223 def setScrollPosition(self, position):
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224 self.spanel.setScrollPosition(position)
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225
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226 def scrollToBottom(self):
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227 self.setScrollPosition(self.spanel.getElement().scrollHeight)