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Viewing changes to softwarestore/view/widgets/searchentry.py

  • Committer: Bazaar Package Importer
  • Author(s): Michael Vogt
  • Date: 2009-09-10 16:13:57 UTC
  • Revision ID: james.westby@ubuntu.com-20090910161357-og1z58504dqht7xl
Tags: 0.3.1
https://launchpad.net/bugs/427157
https://launchpad.net/bugs/427014
https://launchpad.net/bugs/421552
https://launchpad.net/bugs/427279
* softwarestore/app.py, softwarestore/view/appdetailsview.py:
  - send pkgname instead of apt.Package object in the selected
    signal (LP: #427157)
* softwarestore/view/availablepane.py:
  - Show installed software in the "Get Free Software" pane
    as well (as the spec says) LP: #427014
* softwarestore/view/appview.py:
  - log icon_load errors only in loglevel DEBUG to avoid
    noise on the console
* softwarestore/view/searchentry.py:
  - grab focus when clear icon is clicked (LP: #421552)
* data/ui/SoftwareStore.ui:
  - adjust default size so that all icons fit into the
    window in a english locale (thanks to mac_v)
* updated icon (LP: #427279)
* properly update the current app list (ensure installed emblems
  are good) if the cache is re-opened
* when the cache is refreshed, ensure that the scrolled position
  is kept

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softwarestore/view/widgets/searchentry.py
 
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# coding: utf-8
 
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#
 
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# SearchEntry - An enhanced search entry with alternating background colouring 
 
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#               and timeout support
 
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#
 
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# Copyright (C) 2007 Sebastian Heinlein
 
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#               2007-2009 Canonical Ltd.
 
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#
 
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# Authors:
 
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#  Sebastian Heinlein <glatzor@ubuntu.com>
 
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#
 
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# This program is free software; you can redistribute it and/or modify it under
 
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# the terms of the GNU General Public License as published by the Free Software
 
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# Foundation; either version 3 of the License, or (at your option) any later
 
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# version.
 
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#
 
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# This program is distributed in the hope that it will be useful, but WITHOUT
 
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 
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# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
 
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# details.
 
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#
 
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# You should have received a copy of the GNU General Public License along with
 
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# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 
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# Place, Suite 330, Boston, MA 02111-1307 USA
 
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import sexy
 
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import gtk
 
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import gobject
 
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class SearchEntry(sexy.IconEntry):
 
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    __gsignals__ = {'terms-changed':(gobject.SIGNAL_RUN_FIRST,
 
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                                     gobject.TYPE_NONE,
 
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                                     (gobject.TYPE_STRING,))}
 
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    SEARCH_TIMEOUT = 200
 
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    def __init__(self, icon_theme=None):
 
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        """
 
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        Creates an enhanced IconEntry that supports a time out when typing
 
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        and uses a different background colour when the search is active
 
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        """
 
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        sexy.IconEntry.__init__(self)
 
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        if not icon_theme:
 
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            icon_theme = gtk.icon_theme_get_default()
 
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        self._handler_changed = self.connect_after("changed",
 
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                                                   self._on_changed)
 
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        self.connect("icon-pressed", self._on_icon_pressed)
 
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        # Does not work - known bug in libsexy
 
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        # image = gtk.image_new_from_icon_name(gtk.STOCK_CLEAR,
 
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        #                                      gtk.ICON_SIZE_MENU)
 
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        # primary
 
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        image_find = gtk.Image()
 
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        pixbuf = icon_theme.load_icon(gtk.STOCK_FIND,
 
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                                      gtk.ICON_SIZE_MENU,
 
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                                      0)
 
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        image_find.set_from_pixbuf(pixbuf)
 
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        self.set_icon(sexy.ICON_ENTRY_PRIMARY, image_find)
 
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        self.empty_image = gtk.Image()
 
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        self.clear_image = gtk.Image()
 
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        pixbuf = icon_theme.load_icon(gtk.STOCK_CLEAR,
 
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                                      gtk.ICON_SIZE_MENU,
 
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                                      0)
 
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        self.clear_image.set_from_pixbuf(pixbuf)
 
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        self.set_icon(sexy.ICON_ENTRY_SECONDARY, self.clear_image)
 
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        self.set_icon_highlight(sexy.ICON_ENTRY_PRIMARY, True)
 
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        # Do not draw a yellow bg if an a11y theme is used
 
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        settings = gtk.settings_get_default()
 
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        theme = settings.get_property("gtk-theme-name")
 
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        self._a11y = (theme.startswith("HighContrast") or
 
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                      theme.startswith("LowContrast"))
 
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        self._timeout_id = 0
 
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    def _on_icon_pressed(self, widget, icon, mouse_button):
 
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        """
 
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        Emit the terms-changed signal without any time out when the clear
 
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        button was clicked
 
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        """
 
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        if icon == sexy.ICON_ENTRY_SECONDARY:
 
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            self.handler_block(self._handler_changed)
 
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            self.grab_focus()
 
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            self.set_text("")
 
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            self._check_style()
 
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            self.handler_unblock(self._handler_changed)
 
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            self.emit("terms-changed", self.get_text())
 
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    def clear(self):
 
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        self.set_text("")
 
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        self._check_style()
 
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    def clear_with_no_signal(self):
 
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        """Clear and do not send a term-changed signal"""
 
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        self.handler_block(self._handler_changed)
 
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        self.clear()
 
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        self.handler_unblock(self._handler_changed)
 
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    def _on_changed(self, widget):
 
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        """
 
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        Call the actual search method after a small timeout to allow the user
 
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        to enter a longer search term
 
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        """
 
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        self._check_style()
 
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        if self._timeout_id > 0:
 
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            gobject.source_remove(self._timeout_id)
 
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        self._timeout_id = gobject.timeout_add(self.SEARCH_TIMEOUT,
 
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                                               lambda: self.emit("terms-changed", self.get_text()))
 
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    def _check_style(self):
 
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        """
 
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        Use a different background colour if a search is active
 
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        """
 
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        # show/hide icon
 
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        if self.get_text() != "":
 
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            self.set_icon(sexy.ICON_ENTRY_SECONDARY, self.clear_image)
 
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        else:
 
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            self.set_icon(sexy.ICON_ENTRY_SECONDARY, self.empty_image)
 
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        # Based on the Rhythmbox code
 
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        yellowish = gtk.gdk.Color(63479, 63479, 48830)
 
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        if self._a11y == True:
 
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            return
 
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        if self.get_text() == "":
 
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            self.modify_base(gtk.STATE_NORMAL, None)
 
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        else:
 
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            self.modify_base(gtk.STATE_NORMAL, yellowish)
 
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def on_entry_changed(self, terms):
 
129
    print terms
 
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131
if __name__ == "__main__":
 
132
 
 
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    icons = gtk.icon_theme_get_default()
 
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    entry = SearchEntry(icons)
 
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    entry.connect("terms-changed", on_entry_changed)
 
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    win = gtk.Window()
 
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    win.add(entry)
 
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    win.set_size_request(400,400)
 
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    win.show_all()
 
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    gtk.main()
 
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