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annotate src/browser/sat_browser/base_panel.py @ 939:1375b96f4309

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author Goffi <goffi@goffi.org>
date Thu, 27 Apr 2017 01:15:54 +0200
parents f8a7a046ff9c
children fd4eae654182
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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) 2011-2016 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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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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36 ### Menus ###
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39 class PopupMenuPanel(PopupPanel):
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40 """Popup menu (contextual menu) with common callbacks for all the items.
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42 This implementation of a popup menu allow you to assign two special methods which
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43 are common to all the items, in order to hide certain items and define their callbacks.
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44 callbacks. The menu can be bound to any button of the mouse (left, middle, right).
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45 """
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47 def __init__(self, entries, hide=None, callback=None, vertical=True, style=None, **kwargs):
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48 """
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49 @param entries (dict{unicode: dict{unicode: unicode}:
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50 - menu item keys
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51 - values: dict{unicode: unicode}:
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52 - item data lile "title", "desc"...
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53 - value
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54 @param hide (callable): function of signature Widget, unicode: bool
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55 which takes the sender and the item key, and returns True if that
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56 item has to be hidden from the context menu.
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57 @param callback (callbable): function of signature Widget, unicode: None
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58 which takes the sender and the item key.
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59 @param vertical (bool): set the direction vertical or horizontal
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60 @param item_style (unicode): alternative CSS class for the menu items
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61 @param menu_style (unicode): supplementary CSS class for the sender widget
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62 """
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63 PopupPanel.__init__(self, autoHide=True, **kwargs)
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64 self.entries = entries
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65 self.hideMenu = hide
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66 self.callback = callback
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67 self.vertical = vertical
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68 self.style = {"selected": None, "menu": "itemKeyMenu", "item": "popupMenuItem"}
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69 if isinstance(style, dict):
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70 self.style.update(style)
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71 self.senders = {}
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72
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73 def showMenu(self, sender):
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74 """Popup the menu on the screen, where it fits to the sender's position.
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76 @param sender (Widget): the widget that has been clicked
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77 """
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78 menu = VerticalPanel() if self.vertical is True else HorizontalPanel()
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79 menu.setStyleName(self.style["menu"])
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81 def button_cb(item):
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82 # XXX: you can not put that method in the loop and rely on key
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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, entry in self.entries.iteritems():
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88 if self.hideMenu is not None and self.hideMenu(sender=sender, key=key) is True:
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89 continue
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90 title = entry.get("title", key)
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91 item = Button(title, button_cb, StyleName=self.style["item"])
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92 item.key = key # XXX: copy the key because we loop on it and it will change
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93 item.setTitle(entry.get("desc", title))
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94 menu.add(item)
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96 if menu.getWidgetCount() == 0:
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97 return # no item to display means no menu at all
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98
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99 self.add(menu)
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100
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101 if self.vertical is True:
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102 x = sender.getAbsoluteLeft() + sender.getOffsetWidth()
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103 y = sender.getAbsoluteTop()
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104 else:
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105 x = sender.getAbsoluteLeft()
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106 y = sender.getAbsoluteTop() + sender.getOffsetHeight()
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107
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108 self.setPopupPosition(x, y)
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109 self.show()
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110
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111 if self.style["selected"]:
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112 sender.addStyleDependentName(self.style["selected"])
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113
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114 def onHide(popup):
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115 if self.style["selected"]:
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116 sender.removeStyleDependentName(self.style["selected"])
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117 return PopupPanel.onHideImpl(self, popup)
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118
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119 self.onHideImpl = onHide
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120
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121 def registerClickSender(self, sender, button=BUTTON_LEFT):
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122 """Bind the menu to the specified sender.
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123
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124 @param sender (Widget): bind the menu to this widget
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125 @param (int): BUTTON_LEFT, BUTTON_MIDDLE or BUTTON_RIGHT
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126 """
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127 self.senders.setdefault(sender, [])
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128 self.senders[sender].append(button)
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129
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130 if button == BUTTON_RIGHT:
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131 # WARNING: to disable the context menu is a bit tricky...
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132 # The following seems to work on Firefox 24.0, but:
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133 # TODO: find a cleaner way to disable the context menu
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134 sender.getElement().setAttribute("oncontextmenu", "return false")
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135
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136 def onBrowserEvent(event):
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137 button = DOM.eventGetButton(event)
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138 if DOM.eventGetType(event) == "mousedown" and button in self.senders[sender]:
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139 self.showMenu(sender)
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140 return sender.__class__.onBrowserEvent(sender, event)
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141
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142 sender.onBrowserEvent = onBrowserEvent
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143
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144 def registerMiddleClickSender(self, sender):
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145 self.registerClickSender(sender, BUTTON_MIDDLE)
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146
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147 def registerRightClickSender(self, sender):
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148 self.registerClickSender(sender, BUTTON_RIGHT)
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149
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150
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151 ### Generic panels ###
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152
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153
264
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154 class ToggleStackPanel(StackPanel):
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155 """This is a pyjamas.ui.StackPanel with modified behavior. All sub-panels ca be
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156 visible at the same time, clicking a sub-panel header will not display it and hide
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157 the others but only toggle its own visibility. The argument 'visibleStack' is ignored.
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158 Note that the argument 'visible' has been added to listener's 'onStackChanged' method.
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159 """
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160
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161 def __init__(self, **kwargs):
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162 StackPanel.__init__(self, **kwargs)
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163
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164 def onBrowserEvent(self, event):
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165 if DOM.eventGetType(event) == "click":
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166 index = self.getDividerIndex(DOM.eventGetTarget(event))
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167 if index != -1:
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168 self.toggleStack(index)
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169
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170 def add(self, widget, stackText="", asHTML=False, visible=False):
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171 StackPanel.add(self, widget, stackText, asHTML)
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172 self.setStackVisible(self.getWidgetCount() - 1, visible)
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173
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174 def toggleStack(self, index):
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175 if index >= self.getWidgetCount():
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176 return
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177 visible = not self.getWidget(index).getVisible()
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178 self.setStackVisible(index, visible)
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179 for listener in self.stackListeners:
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180 listener.onStackChanged(self, index, visible)
346
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181
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182
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183 class TitlePanel(ToggleStackPanel):
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184 """A toggle panel to set the message title"""
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185
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186 TITLE = _("Title")
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187
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188 def __init__(self, text=None):
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189 ToggleStackPanel.__init__(self, Width="100%")
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190 self.text_area = TextArea()
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191 self.add(self.text_area, self.TITLE)
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192 self.addStackChangeListener(self)
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193 if text:
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194 self.setText(text)
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195
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196 def onStackChanged(self, sender, index, visible=None):
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197 if visible is None:
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198 visible = sender.getWidget(index).getVisible()
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199 text = self.getText()
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200 suffix = "" if (visible or not text) else (": %s" % text)
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201 sender.setStackText(index, self.TITLE + suffix)
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202
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203 def getText(self):
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204 return self.text_area.getText()
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205
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206 def setText(self, text):
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207 self.text_area.setText(text)
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208
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209
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210 class ScrollPanelWrapper(SimplePanel):
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211 """Scroll Panel like component, wich use the full available space
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212 to work around percent size issue, it use some of the ideas found
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213 here: http://code.google.com/p/google-web-toolkit/issues/detail?id=316
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214 specially in code given at comment #46, thanks to Stefan Bachert"""
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215
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216 def __init__(self, *args, **kwargs):
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217 SimplePanel.__init__(self)
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218 self.spanel = ScrollPanel(*args, **kwargs)
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219 SimplePanel.setWidget(self, self.spanel)
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220 DOM.setStyleAttribute(self.getElement(), "position", "relative")
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221 DOM.setStyleAttribute(self.getElement(), "top", "0px")
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222 DOM.setStyleAttribute(self.getElement(), "left", "0px")
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223 DOM.setStyleAttribute(self.getElement(), "width", "100%")
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224 DOM.setStyleAttribute(self.getElement(), "height", "100%")
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225 DOM.setStyleAttribute(self.spanel.getElement(), "position", "absolute")
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226 DOM.setStyleAttribute(self.spanel.getElement(), "width", "100%")
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227 DOM.setStyleAttribute(self.spanel.getElement(), "height", "100%")
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228
648
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229 def setWidget(self, widget):
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230 self.spanel.setWidget(widget)
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231
648
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232 def setScrollPosition(self, position):
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233 self.spanel.setScrollPosition(position)
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234
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235 def scrollToBottom(self):
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236 self.setScrollPosition(self.spanel.getElement().scrollHeight)