`moveWindowToSpace` and `command-w` makes `focused index not found`

[QuarterHeaven]

Hi I have some problems while using moveWindowToSpace function and close a window. While I use moveWindowToSpace, it opens the mission control, then the pointer is moved to the left upper corner, and the focused window is not managed. Here is the log:

2024-12-19 11:38:07: 11:38:07 MissionCon:         moving window *welcome* to space 2
2024-12-19 11:38:08: 11:38:08                     looking for window with title: *welcome*
2024-12-19 11:38:08: 11:38:08 ERROR:   LuaSkin: hs.hotkey callback: ...id/.hammerspoon/Spoons/PaperWM.spoon/mission_control.lua:223: attempt to index a nil value (field 'AXTitle')
stack traceback:
	...id/.hammerspoon/Spoons/PaperWM.spoon/mission_control.lua:223: in method 'moveWindowToSpace'
	/Users/takaobsid/.hammerspoon/Spoons/PaperWM.spoon/init.lua:1091: in function 'PaperWM.moveWindowToSpace'
	(...tail calls...)

and if I use focus_* functions on it, HS reports:

2024-12-19 11:54:05: 11:54:05 ERROR:   PaperWM: focused index not found
2024-12-19 11:54:06: 11:54:06 ERROR:   PaperWM: focused index not found
2024-12-19 11:54:06: 11:54:06 ERROR:   PaperWM: focused index not found
2024-12-19 11:59:27: 11:59:27 ERROR:   PaperWM: anchor index not found
2024-12-19 11:59:29: 11:59:29 ERROR:   PaperWM: focused index not found

and it also happens while I use command-w closing a window. The window is closed but it still focused on the application, and it looks like the window is still on the screen. It seems like the space is split by the closed window, I can still use focus_* to find it, but can't move out from it because PaperWM: focused index not found.

[QuarterHeaven]

I found M-h will solve M-w problem, but some window cannot be hided by M-h like the hammerspoon console.

[mogenson]

Hmmm, it seems like the window from https://github.com/mogenson/PaperWM.spoon/blob/main/mission_control.lua#L223 does not have a title property. That's strange, because I expect all windows to have a title.

Could you make an local edit to the mission_control.lua file, try to move a window to a new space again, and share the HammerSpoon Console output?

        log.vf("looking for window with title: %s", title)
        for _, window in ipairs(windows) do
            print(hs.inspect(window:allAttributeValues()))    --  add this line here below line 222
            if window.AXTitle:find(title, 1, true) then
                start_position = Geometry(window.AXFrame).center
            end
        end

Also may I ask which application / window you're trying to move to a new space? PaperWM.spoon doesn't work well with tooltip windows like the built in manual / help documentation reader.

[mogenson]

Oh and the PaperWM: focused index not found are a side effect of the move window to space operation failing. PaperWM.spoon has lost track of where that window should be tiled. You can use the refresh_windows action or restart all of HammerSpoon to fix window tiling.

[QuarterHeaven]

Nearly all the window have this problem... I tried Word and Zen browser and many other apps.

2024-12-21 16:54:55: 16:54:55 MissionCon:         moving window 打开新的和最近使用的文件 to space 2
2024-12-21 16:54:56: 16:54:56                     looking for window with title: 打开新的和最近使用的文件
2024-12-21 16:54:56: -- Loading extension: inspect
2024-12-21 16:54:56: {
  AXEnabled = true,
  AXFrame = {
    h = 283.0,
    w = 260.0,
    x = 572.0,
    y = 798.0
  },
  AXParent = <userdata 1> -- hs.axuielement: AXGroup (0x600001c29378),
  AXPosition = {
    x = 572.0,
    y = 798.0
  },
  AXRole = "AXButton",
  AXRoleDescription = "按钮",
  AXSize = {
    h = 283.0,
    w = 260.0
  },
  AXTopLevelUIElement = <userdata 2> -- hs.axuielement: AXGroup (0x600001c293b8)
}
2024-12-21 16:54:56: 16:54:56 ERROR:   LuaSkin: hs.hotkey callback: ...id/.hammerspoon/Spoons/PaperWM.spoon/mission_control.lua:224: attempt to index a nil value (field 'AXTitle')
stack traceback:
	...id/.hammerspoon/Spoons/PaperWM.spoon/mission_control.lua:224: in method 'moveWindowToSpace'
	/Users/takaobsid/.hammerspoon/Spoons/PaperWM.spoon/init.lua:1091: in function 'PaperWM.moveWindowToSpace'
	(...tail calls...)
2024-12-21 16:55:02: 16:55:02 ERROR:   PaperWM: add window does not have a space
2024-12-21 16:55:18: 16:55:18 MissionCon:         moving window `moveWindowToSpace` and `command-w` makes `focused index not found` · Issue #60 · mogenson/PaperWM.spoon to space 2
2024-12-21 16:55:18:                              looking for window with title: `moveWindowToSpace` and `command-w` makes `focused index not found` · Issue #60 · mogenson/PaperWM.spoon
2024-12-21 16:55:19: {
  AXEnabled = true,
  AXFrame = {
    h = 281.0,
    w = 460.0,
    x = 689.0,
    y = 801.0
  },
  AXParent = <userdata 1> -- hs.axuielement: AXGroup (0x600001d5f5f8),
  AXPosition = {
    x = 689.0,
    y = 801.0
  },
  AXRole = "AXButton",
  AXRoleDescription = "按钮",
  AXSize = {
    h = 281.0,
    w = 460.0
  },
  AXTitle = "`moveWindowToSpace` and `command-w` makes `focused index not found` · Issue #60 · mogenson/PaperWM.spoon",
  AXTopLevelUIElement = <userdata 2> -- hs.axuielement: AXGroup (0x600001d5f638)
}
2024-12-21 16:55:19: {
  AXEnabled = true,
  AXFrame = {
    h = 281.0,
    w = 256.0,
    x = 999.0,
    y = 504.0
  },
  AXParent = <userdata 1> -- hs.axuielement: AXGroup (0x600001d561b8),
  AXPosition = {
    x = 999.0,
    y = 504.0
  },
  AXRole = "AXButton",
  AXRoleDescription = "按钮",
  AXSize = {
    h = 281.0,
    w = 256.0
  },
  AXTitle = "Hammerspoon Console",
  AXTopLevelUIElement = <userdata 2> -- hs.axuielement: AXGroup (0x600001d561f8)
}
2024-12-21 16:55:19: {
  AXEnabled = true,
  AXFrame = {
    h = 281.0,
    w = 515.0,
    x = 1484.0,
    y = 819.0
  },
  AXParent = <userdata 1> -- hs.axuielement: AXGroup (0x600001d56d78),
  AXPosition = {
    x = 1484.0,
    y = 819.0
  },
  AXRole = "AXButton",
  AXRoleDescription = "按钮",
  AXSize = {
    h = 281.0,
    w = 515.0
  },
  AXTitle = "更新日志 | Tampermonkey",
  AXTopLevelUIElement = <userdata 2> -- hs.axuielement: AXGroup (0x600001d56db8)
}
2024-12-21 16:55:19: {
  AXEnabled = true,
  AXFrame = {
    h = 281.0,
    w = 258.0,
    x = 511.0,
    y = 504.0
  },
  AXParent = <userdata 1> -- hs.axuielement: AXGroup (0x600001d44338),
  AXPosition = {
    x = 511.0,
    y = 504.0
  },
  AXRole = "AXButton",
  AXRoleDescription = "按钮",
  AXSize = {
    h = 281.0,
    w = 258.0
  },
  AXTopLevelUIElement = <userdata 2> -- hs.axuielement: AXGroup (0x600001d44378)
}
2024-12-21 16:55:19: 16:55:19 ERROR:   LuaSkin: hs.hotkey callback: ...id/.hammerspoon/Spoons/PaperWM.spoon/mission_control.lua:224: attempt to index a nil value (field 'AXTitle')
stack traceback:
	...id/.hammerspoon/Spoons/PaperWM.spoon/mission_control.lua:224: in method 'moveWindowToSpace'
	/Users/takaobsid/.hammerspoon/Spoons/PaperWM.spoon/init.lua:1091: in function 'PaperWM.moveWindowToSpace'
	(...tail calls...)

Close the window still have the issue.

The large space here is the closed Todesk window. I can't get out of it except using M-h to hide it or M-q to quit the app. if I use M-h, it will report focused index not found next time I open the window.

[mogenson]

Hey sorry for the late response. I was away traveling for the holidays.

I'm looking at the output for the windows in Mission Control and window 4 (labeled below) does indeed not have a AXTitle field. I'll update PaperWM.spoon to bail and not crash if a window does not have a title. Unfortunately, there's nothing else identifiable in the Mission Control window metadata for us to know which window to move to new space.

Maybe the lack of an AXTitle is a side effect of the way MacOS handles English vs Chinese system language. Or maybe it's a specific problematic application. Do you have any guesses as to which application / window, the window 4 is below?

-- window 1
2024-12-21 16:55:19: {
  AXEnabled = true,
  AXFrame = {
    h = 281.0,
    w = 460.0,
    x = 689.0,
    y = 801.0
  },
  AXParent = <userdata 1> -- hs.axuielement: AXGroup (0x600001d5f5f8),
  AXPosition = {
    x = 689.0,
    y = 801.0
  },
  AXRole = "AXButton",
  AXRoleDescription = "按钮",
  AXSize = {
    h = 281.0,
    w = 460.0
  },
  AXTitle = "`moveWindowToSpace` and `command-w` makes `focused index not found` · Issue #60 · mogenson/PaperWM.spoon",
  AXTopLevelUIElement = <userdata 2> -- hs.axuielement: AXGroup (0x600001d5f638)
}

-- window 2
2024-12-21 16:55:19: {
  AXEnabled = true,
  AXFrame = {
    h = 281.0,
    w = 256.0,
    x = 999.0,
    y = 504.0
  },
  AXParent = <userdata 1> -- hs.axuielement: AXGroup (0x600001d561b8),
  AXPosition = {
    x = 999.0,
    y = 504.0
  },
  AXRole = "AXButton",
  AXRoleDescription = "按钮",
  AXSize = {
    h = 281.0,
    w = 256.0
  },
  AXTitle = "Hammerspoon Console",
  AXTopLevelUIElement = <userdata 2> -- hs.axuielement: AXGroup (0x600001d561f8)
}

-- window 3
2024-12-21 16:55:19: {
  AXEnabled = true,
  AXFrame = {
    h = 281.0,
    w = 515.0,
    x = 1484.0,
    y = 819.0
  },
  AXParent = <userdata 1> -- hs.axuielement: AXGroup (0x600001d56d78),
  AXPosition = {
    x = 1484.0,
    y = 819.0
  },
  AXRole = "AXButton",
  AXRoleDescription = "按钮",
  AXSize = {
    h = 281.0,
    w = 515.0
  },
  AXTitle = "更新日志 | Tampermonkey",
  AXTopLevelUIElement = <userdata 2> -- hs.axuielement: AXGroup (0x600001d56db8)
}

-- window 4
2024-12-21 16:55:19: {
  AXEnabled = true,
  AXFrame = {
    h = 281.0,
    w = 258.0,
    x = 511.0,
    y = 504.0
  },
  AXParent = <userdata 1> -- hs.axuielement: AXGroup (0x600001d44338),
  AXPosition = {
    x = 511.0,
    y = 504.0
  },
  AXRole = "AXButton",
  AXRoleDescription = "按钮",
  AXSize = {
    h = 281.0,
    w = 258.0
  },
  AXTopLevelUIElement = <userdata 2> -- hs.axuielement: AXGroup (0x600001d44378)
}

[mogenson]

See if PR #61 helps with the move window to space issue.

If this issue is due to a specific problematic application, we'll see if we can handle it in the tiling code as well.