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Web.activity/sessionstore.py

 

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# Copyright (C) 2007, One Laptop Per Child

 

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#

 

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# This program is free software; you can redistribute it and/or modify

 

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# it under the terms of the GNU General Public License as published by

 

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# the Free Software Foundation; either version 2 of the License, or

 

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# (at your option) any later version.

 

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#

 

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# This program is distributed in the hope that it will be useful,

 

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# but WITHOUT ANY WARRANTY; without even the implied warranty of

 

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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 

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# GNU General Public License for more details.

 

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#

 

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# You should have received a copy of the GNU General Public License

 

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# along with this program; if not, write to the Free Software

 

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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 

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# Based on

 

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# http://lxr.mozilla.org/seamonkey/source/browser/components/sessionstore

 

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import logging

 

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from xpcom import components

 

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from xpcom.components import interfaces

 

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def get_session(browser):

 

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    session_history = browser.web_navigation.sessionHistory

 

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    if session_history.count == 0:

 

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        return ''        

 

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    return _get_history(session_history)            

 

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def set_session(browser, data):

 

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    _set_history(browser.web_navigation.sessionHistory, data)

 

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    if data:

 

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        browser.web_navigation.gotoIndex(len(data) - 1)

 

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    else:

 

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        browser.load_uri('about:blank')

 

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def _get_history(history):

 

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    logging.debug('%r' % history.count)

 

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    entries_dest = []

 

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    for i in range(0, history.count):

 

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        entry_orig = history.getEntryAtIndex(i, False)

 

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        entry_dest = {'url':    entry_orig.URI.spec,

 

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                      'title':  entry_orig.title}

 

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        entries_dest.append(entry_dest)

 

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    return entries_dest

 

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def _set_history(history, history_data):

 

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    history_internal = history.queryInterface(interfaces.nsISHistoryInternal);

 

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    if history_internal.count > 0:

 

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        history_internal.purgeHistory(history_internal.count);

 

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    for entry_dict in history_data:

 

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        logging.debug('entry_dict: %r' % entry_dict)

 

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        entry_class = components.classes["@mozilla.org/browser/session-history-entry;1"]

 

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        entry = entry_class.createInstance(interfaces.nsISHEntry)

 

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        io_service_class = components.classes["@mozilla.org/network/io-service;1"]

 

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        io_service = io_service_class.getService(interfaces.nsIIOService)

 

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        entry.setURI(io_service.newURI(entry_dict['url'], None, None));

 

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        entry.setTitle(entry_dict['title']);

 

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        history_internal.addEntry(entry, True)

 

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