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128 lines
4.5 KiB
128 lines
4.5 KiB
#!/bin/python3
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"""A simple windowswitcher for sway"""
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# switch_window, get_windows and extract_nodes_iterative is derived from
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# https://github.com/tobiaspc/wofi-scripts Copyright (c) 2020 Tobi which
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# is covered by the MIT License. However this program is licenced under
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# the GPLv3+ Copyright (c) 2020 Micke Nordin. See LICENSE file for details.
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import json
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import math
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import subprocess
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import wx
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class SwaySwitch(wx.Frame): # pylint: disable=no-member
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"""Frame for the swayswitcher"""
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def __init__(self, *args, **kw): # pylint: disable=unused-argument
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"""Constructor"""
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wx.Frame.__init__(self, None, title="", style=wx.STAY_ON_TOP) # pylint: disable=no-member
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# create a panel in the frame
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self.pnl = wx.Panel(self) # pylint: disable=no-member
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# get windows from sway
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windows = get_windows()
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label_len = 20
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# and create a sizer to manage the layout of child widgets
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x_and_y = int(math.sqrt(len(windows)) + 0.5)
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sizer = wx.GridSizer(x_and_y) # pylint: disable=no-member
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self.pnl.SetSizer(sizer)
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for window in windows:
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try:
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label = window['window_properties']['class']
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except KeyError:
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try:
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label = window['app_id']
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if len(label) < label_len:
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label = label + ':' + window['name'][:label_len -
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len(label)]
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except KeyError:
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label = window['name']
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if len(label) > label_len:
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label = label[:label_len]
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winid = window['id']
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size = wx.Window.GetFont(self).GetPointSize() * label_len # pylint: disable=no-member
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btn = wx.Button( # pylint: disable=no-member
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parent=self.pnl,
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id=winid,
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label=label,
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size=wx.Size(size, size)) # pylint: disable=no-member
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btn.Bind(
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wx.EVT_BUTTON,
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lambda event, mwinid=winid: self.switch_window(event, mwinid))
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sizer.Add(btn, 0, wx.ALIGN_CENTER) # pylint: disable=no-member
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# Set up esc keybinding
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self.Bind(wx.EVT_CHAR_HOOK, lambda event: self.on_key_press(event)) # pylint: disable=unnecessary-lambda
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sizer.Fit(self)
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sizer.Layout()
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def on_key_press(self, event):
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"""Intercept esc key press"""
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keycode = event.GetUnicodeKey()
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if keycode == wx.WXK_ESCAPE: # pylint: disable=no-member
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self.Close(True)
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else:
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event.Skip(True)
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def switch_window(self, event, winid): # pylint: disable=unused-argument
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"""Switches the focus to the given id"""
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command = "swaymsg [con_id={}] focus".format(winid)
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subprocess.Popen(command, shell=True, stdout=subprocess.PIPE)
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self.Close(True)
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def get_windows():
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"""Returns a list of all json window objects"""
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command = "swaymsg -t get_tree"
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process = subprocess.Popen(command,
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shell=True,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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data = json.loads(process.communicate()[0])
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# Select outputs that are active
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windows = []
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for output in data['nodes']:
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# The scratchpad (under __i3) is not supported
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if output.get('name') != '__i3' and output.get('type') == 'output':
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workspaces = output.get('nodes')
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for workspace in workspaces:
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if workspace.get('type') == 'workspace':
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windows += extract_nodes_iterative(workspace)
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return windows
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def extract_nodes_iterative(workspace):
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"""Extracts all windows from a sway workspace json object"""
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all_nodes = []
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floating_nodes = workspace.get('floating_nodes')
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for floating_node in floating_nodes:
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all_nodes.append(floating_node)
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nodes = workspace.get('nodes')
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for node in nodes:
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# Leaf node
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if len(node.get('nodes')) == 0:
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all_nodes.append(node)
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# Nested node, handled iterative
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else:
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for inner_node in node.get('nodes'):
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nodes.append(inner_node)
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return all_nodes
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# Entry point
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if __name__ == "__main__":
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# When this module is run (not imported) then create the app, the
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# frame, show it, and start the event loop.
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app = wx.App()
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frm = SwaySwitch(None, title="")
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frm.Show()
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app.MainLoop()
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