Internet radio browser GUI for music/video streams from various directory services.

āŒˆāŒ‹ āŽ‡ branch:  streamtuner2


Check-in [38812e4bbf]

Overview
Comment:Implement in-application row copying per JSON (info=51, mime=json/vnd.streamtuner2.station). Fixed set_text() bug by using set("STRING",..) atom instead.
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SHA1: 38812e4bbf19fa780e3b285be9f688386b28453b
User & Date: mario on 2015-04-19 22:17:04
Other Links: manifest | tags
Context
2015-04-20
16:21
Remove some obsolete comments/code snippets. check-in: dd605f1352 user: mario tags: trunk
2015-04-19
22:17
Implement in-application row copying per JSON (info=51, mime=json/vnd.streamtuner2.station). Fixed set_text() bug by using set("STRING",..) atom instead. check-in: 38812e4bbf user: mario tags: trunk
19:35
Experiment with a few more target types. Works with a few text editors on STRING. Most just want a uri-list, but can't handle it. check-in: e0e28edba2 user: mario tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Modified channels/dnd.py from [3ecc3ca6e1] to [25fd725420].

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    row = None
    # Buffer converted types
    buf = {}

    # Supported type map
    drag_types = [
      # internal
      ("json/vnd.streamtuner2.station", 0, 51),
      # literal exports
      ("audio/x-mpegurl", 0, 20),
      ("application/x-scpls", 0, 21),
      ("application/xspf+xml", 0, 22),
      ("application/smil", 0, 23),
      ("text/html", 0, 23),
      ("text/richtext", 0, 23),








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    row = None
    # Buffer converted types
    buf = {}

    # Supported type map
    drag_types = [
      # internal
      ("json/vnd.streamtuner2.station", gtk.TARGET_SAME_APP, 51),
      # literal exports
      ("audio/x-mpegurl", 0, 20),
      ("application/x-scpls", 0, 21),
      ("application/xspf+xml", 0, 22),
      ("application/smil", 0, 23),
      ("text/html", 0, 23),
      ("text/richtext", 0, 23),
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    # Attach drag and drop handlers to each channelsĀ“ station TreeView
    def add_dnd(self, parent):

        # visit each module
        for cn,module in parent.channels.items():
            w = module.gtk_list
            # bind SOURCE events
            w.enable_model_drag_source(gtk.gdk.BUTTON1_MASK, self.drag_types, gtk.gdk.ACTION_DEFAULT|gtk.gdk.ACTION_COPY|gtk.gdk.ACTION_MOVE)
            w.connect('drag-begin', self.begin)
            w.connect('drag-data-get', self.data_get)
            # bind DESTINATION events
            w.enable_model_drag_dest(self.drag_types, gtk.gdk.ACTION_DEFAULT|gtk.gdk.ACTION_COPY)
            w.connect('drag-drop', self.drop)
            w.connect('drag-data-received', self.data_received)



    # -- SOURCE, drag'n'drop from ST2 to elsewhere --

    # Starting to drag a row
    def begin(self, widget, context):
        __print__(dbg.UI, "dndā†source: begin-drag, store current row")
        self.row = self.treelist_row()
        self.buf = {}

        uikit.do(context.set_icon_stock, gtk.STOCK_ADD, 16, 16)
        return "url" in self.row

    # Keep currently selected row when source dragging starts
    def treelist_row(self):
        cn = self.parent.channel()
        row = copy.copy(cn.row())
        row.setdefault("format", cn.audioformat)
        row.setdefault("listformat", cn.listformat)
        row.setdefault("url", row.get("homepage"))
        return row
        
    # Target window/app requests data for offered drop
    def data_get(self, widget, context, selection, info, time):
        __print__(dbg.UI, "dndā†source: data-get, send and convert to requested target type", info, selection.get_target())

        # Start new converter if not buffered (because `data_get` gets called mercilessly along the dragging path)
        if not info in self.buf:
            r = self.row
            cnv = action.save_playlist(source=r["listformat"], multiply=False)

            # internal JSON row
            info = 5
            if info >= 51:
                buf = 'text', json.dumps(r)

            # Pass M3U/PLS/XSPF as literal payload
            elif info >= 20:
                buf = 'text', cnv.export(urls=[r["url"]], row=r, dest=self.cnv_types[info])
            # Direct server URL
            elif info >= 10:
                urls = action.convert_playlist(r["url"], r["listformat"], "srv", False, r)
                #buf = 'uris', urls








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    # Attach drag and drop handlers to each channelsĀ“ station TreeView
    def add_dnd(self, parent):

        # visit each module
        for cn,module in parent.channels.items():
            w = module.gtk_list
            # bind SOURCE events
            w.enable_model_drag_source(gtk.gdk.BUTTON1_MASK, self.drag_types, gtk.gdk.ACTION_DEFAULT|gtk.gdk.ACTION_COPY)
            w.connect('drag-begin', self.begin)
            w.connect('drag-data-get', self.data_get)
            # bind DESTINATION events
            w.enable_model_drag_dest(self.drag_types, gtk.gdk.ACTION_DEFAULT|gtk.gdk.ACTION_COPY)
            w.connect('drag-drop', self.drop)
            w.connect('drag-data-received', self.data_received)



    # -- SOURCE, drag'n'drop from ST2 to elsewhere --

    # Starting to drag a row
    def begin(self, widget, context):
        __print__(dbg.UI, "dndā†source: begin-drag, store current row")
        self.row = self.treelist_row()
        self.buf = {}
#        uikit.do(context.set_icon_default)
        uikit.do(context.set_icon_stock, gtk.STOCK_ADD, 16, 16)
        return "url" in self.row

    # Keep currently selected row when source dragging starts
    def treelist_row(self):
        cn = self.parent.channel()
        row = copy.copy(cn.row())
        row.setdefault("format", cn.audioformat)
        row.setdefault("listformat", cn.listformat)
        row.setdefault("url", row.get("homepage"))
        return row
        
    # Target window/app requests data for offered drop
    def data_get(self, widget, context, selection, info, time):
        __print__(dbg.UI, "dndā†source: data-get, send and convert to requested target type:", info, selection.get_target())

        # Start new converter if not buffered (because `data_get` gets called mercilessly along the dragging path)
        if not info in self.buf:
            r = self.row
            cnv = action.save_playlist(source=r["listformat"], multiply=False)

            # internal JSON row

            if info >= 51:
                buf = 'text', json.dumps(r)
                print buf
            # Pass M3U/PLS/XSPF as literal payload
            elif info >= 20:
                buf = 'text', cnv.export(urls=[r["url"]], row=r, dest=self.cnv_types[info])
            # Direct server URL
            elif info >= 10:
                urls = action.convert_playlist(r["url"], r["listformat"], "srv", False, r)
                #buf = 'uris', urls
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            # Keep in type request buffer
            self.buf[info] = buf
        
        # Return prepared data
        func, data = self.buf[info]
        if func.find("text") >= 0:

            selection.set_text(data, len(data))
        if func.find("uris") >= 0:
            selection.set_uris(data)
        return True


                
    # -- DESTINATION, when playlist/url gets dragged in from other app --

    # Just a notification for incoming drop
    def drop(self, widget, context, x, y, time):
        __print__(dbg.UI, "dndā†’dest: drop-probing", context.targets, x, y, time, context.drag_get_selection())
        widget.drag_get_data(context, "STRING", time)#context.targets[0], time)
        context.drop_reply(True, time)
        return True

    # Actual data is being passed,
    # now has to be converted and patched into stream rows and channel liststore
    def data_received(self, widget, context, x, y, selection, info, time):
        __print__(dbg.UI, "dndā†’dest: data-receival", info, selection.get_target(), selection.get_uris(), selection.get_text())































        context.drop_finish(True, time)
        context.finish(True, False, time)
        return True










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            # Keep in type request buffer
            self.buf[info] = buf
        
        # Return prepared data
        func, data = self.buf[info]
        if func.find("text") >= 0:
            # Yay for trial and error. Nay for docs. PyGtks selection.set_text() doesn't actually work unless the requested target type is an Atom.
            selection.set("STRING", 8, data)
        if func.find("uris") >= 0:
            selection.set_uris(data)
        return True


                
    # -- DESTINATION, when playlist/url gets dragged in from other app --

    # Just a notification for incoming drop
    def drop(self, widget, context, x, y, time):
        __print__(dbg.UI, "dndā†’dest: drop-probing, possible targets:", context.targets)

#        context.drop_reply(True, time) #"STRING"
        return widget.drag_get_data(context, context.targets[0], time) or True

    # Actual data is being passed,
    # now has to be converted and patched into stream rows and channel liststore
    def data_received(self, widget, context, x, y, selection, info, time):
        __print__(dbg.UI, "dndā†’dest: data-receival", info, selection.get_text(), selection.get_uris())
#        print selection.get_length()
#        print selection.get_format()
#        print selection.get_targets()
#        print selection.get_target()
        
        # incoming data
        data = selection.get_text()
        urls = selection.get_uris()
        if not data and not urls:
            context.drop_finish(False, time)
            context.drag_abort(time)
            print "ABORT DROP"
            return

        # internal target dicts
        cn = self.parent.channel()
        
        # direct/internal row import
        if info >= 51:
            print "ADD ROW"
            cn.streams[cn.current].append(json.loads(data))
        # convertible formats
        elif info >= 10:
            pass
        elif info >= 5:
            pass
        else:
            pass
            #self.parent.streamedit()
            
        # finish drop
        context.drop_finish(True, time)
        context.finish(True, False, time)
        return True