1 files changed, 147 insertions, 0 deletions
diff --git a/secuencia.py b/secuencia.py
new file mode 100644
index 0000000..04fdc7c
--- /dev/null
+++ b/secuencia.py
@@ -0,0 +1,147 @@
+from sugar.activity import activity
+from sugar.graphics.toolbarbox import ToolbarBox
+from sugar.graphics.objectchooser import ObjectChooser
+from sugar.datastore import datastore
+from sugar import mime
+from sugar.logger import logging
+from gettext import gettext as _
+import gtk
+import os
+import statvfs
+import zipfile
+import gio
+
+
+ACTION_ICONS = {
+    'sound' : gtk.STOCK_MEDIA_PLAY,
+    'video' : gtk.STOCK_MEDIA_PLAY,
+    'next'  : gtk.STOCK_GO_FORWARD,
+}
+
+class Secuencia(activity.Activity):
+    def __init__(self, handle):
+        activity.Activity.__init__(self, handle)
+
+        self.toolbox = activity.ActivityToolbox(self)
+        self.set_toolbox(self.toolbox)
+        self.toolbox.show()
+
+        main_box = gtk.VBox()
+
+        frame = gtk.Frame()
+        main_box.pack_start(frame)
+        frame.show()
+
+        frame_vbox = gtk.VBox()
+        frame.add(frame_vbox)
+        frame_vbox.show()
+
+        self.text = gtk.Label()
+        frame_vbox.pack_start(self.text)
+        self.text.show()
+
+        self.image = gtk.Image()
+        frame_vbox.pack_start(self.image)
+        self.image.show()
+
+        self.action_icon = gtk.Image()
+        main_box.pack_start(self.action_icon, False)
+        self.action_icon.show()
+
+        self.set_canvas(main_box)
+        main_box.show()
+
+        # A list of (filename, mimetype) tuples
+        self.list = []
+        self.current_pos = -1
+        self.executed_action = True
+
+        if self.shared_activity:
+            pass
+        elif handle.object_id is not None:
+            self.list = self.metadata['files']
+        else:
+            self._show_journal_object_picker()
+
+        self.connect('button-press-event', lambda w, e: self._next())
+        self.show_all()
+        self._next()
+
+    def _next(self):
+        if not self.executed_action:
+            card = self.list[self.current_pos]
+            self._execute(card)
+            self.executed_action = True
+        else:
+            self.current_pos += 1
+            try:
+                card = self.list[self.current_pos]
+            except IndexError:
+                self.current_pos = -1
+                self._next()
+            else:
+                self._show_card(card)
+            self.executed_action = False
+
+    def _execute(self, card):
+        if 'sound' in card:
+            # Play sound
+            pass
+        elif 'video' in card:
+            # Play video
+            pass
+
+    def _show_card(self, card):
+        if 'image' in card:
+            self.image.set_from_file(os.path.join(os.environ['SUGAR_ACTIVITY_ROOT'], 'tmp', card['image']))
+        else:
+            self.image.set_from_stock(gtk.STOCK_MISSING_IMAGE)
+
+        if 'action' in card:
+           self.action_icon.set_from_stock(ACTION_ICONS[card['action']], gtk.ICON_SIZE_LARGE_TOOLBAR) 
+        else:
+            self.action_icon.set_from_stock(ACTION_ICONS['next'], gtk.ICON_SIZE_LARGE_TOOLBAR)
+
+        self.text.set_text(card['title'])
+
+    def _show_journal_object_picker(self):
+        """Show the journal object picker to load a document.
+
+        This is for if Read is launched without a document.
+        """
+        chooser = ObjectChooser(_('Choose document'), self, 
+                                gtk.DIALOG_MODAL | 
+                                gtk.DIALOG_DESTROY_WITH_PARENT,
+                                what_filter=mime.GENERIC_TYPE_TEXT) #FIXME: Filter by this activity's type
+        try:
+            result = chooser.run()
+            if result == gtk.RESPONSE_ACCEPT:
+                logging.debug('ObjectChooser: %r' % 
+                              chooser.get_selected_object())
+                jobject = chooser.get_selected_object()
+                if jobject and jobject.file_path:
+                    self.list = jobject.metadata['files']
+                    self.read_file(jobject.file_path)
+        finally:
+            chooser.destroy()
+            del chooser
+
+    def read_file(self, path):
+        zip = zipfile.ZipFile(path)
+        info = zip.infolist()
+        size = reduce(lambda s, i: s+i.file_size, info, 0)
+        stat = os.stavfs(os.environ['SUGAR_ACTIVITY_ROOT'])
+        if stat[statvfs.F_BSIZE]*stat[statvfs.F_BAVAIL] < size:
+            #TODO: Alert: Not enough free space
+        for member in zip.infolist():
+            try:
+                data = member.read()
+                self.list.append((member.filename, gio.content_type_guess(None, data))
+                f = open(os.path.join(os.environ['SUGAR_ACTIVITY_ROOT'], 'tmp', member.filename), 'w')
+                f.write(data)
+                del data
+            finally:
+                f.close()
+
+    def write_file(self, path):
+        pass