chromeplug

#!/usr/bin/env python2
# -*- coding: utf-8 -*-
from __future__ import print_function


from ctypes import windll, WINFUNCTYPE, POINTER, c_bool, c_int, create_unicode_buffer


EnumWindows = windll.user32.EnumWindows
EnumChildWindows = windll.user32.EnumChildWindows

SetWindowPos = windll.user32.SetWindowPos
GetWindowLong = windll.user32.GetWindowLongA
SetWindowLong = windll.user32.SetWindowLongA
SetLayeredWindowAttributes = windll.user32.SetLayeredWindowAttributes

EnumWindowsProc = WINFUNCTYPE(c_bool, POINTER(c_int), POINTER(c_int))
GetWindowText = windll.user32.GetWindowTextW
GetWindowTextLength = windll.user32.GetWindowTextLengthW
IsWindowVisible = windll.user32.IsWindowVisible


windows = []
def foreach_window(hwnd, lParam):
    if IsWindowVisible(hwnd):
        length = GetWindowTextLength(hwnd)
        buff = create_unicode_buffer(length + 1)
        GetWindowText(hwnd, buff, length + 1)
        windows.append([hwnd, buff.value])
    return True


subwindows = []
def foreach_subwindow(hwnd, lParam):
    if IsWindowVisible(hwnd):
        length = GetWindowTextLength(hwnd)
        buff = create_unicode_buffer(length + 1)
        GetWindowText(hwnd, buff, length + 1)
        subwindows.append([hwnd, buff.value])
    return True


del windows[:]
EnumWindows(EnumWindowsProc(foreach_window), 0)


for hwnd, title in windows:
    if 'Index of /dev/' in title:
        print(hwnd, title)
        if False:
            # try to resize the entire window in fullscreen,
            # works but bounces back on mouseover
            SWP_NOZORDER = 0x0004
            SWP_NOACTIVATE = 0x0010
            SWP_NOSENDCHANGING = 0x0400
            SWP_NOREPOSITION = 0x0200
            SetWindowPos(hwnd, None, 256, 128, 512, 384,
                SWP_NOZORDER + SWP_NOACTIVATE + SWP_NOSENDCHANGING)
            break

        else:
            # "c:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --app=https://ocv.me/dev/
            #
            GWL_STYLE     = -16;
            WS_BORDER     = 0x800000; # has border
            WS_DLGFRAME   = 0x400000; # has double border but no title
            WS_CAPTION    = WS_BORDER + WS_DLGFRAME; # has title bar

            style = GetWindowLong(hwnd, GWL_STYLE)
            style = style & ~WS_CAPTION

            SetWindowLong(hwnd, GWL_STYLE, style)

            # resize the window to trigger a redraw by chrome
            SWP_NOACTIVATE = 0x0010
            SWP_NOZORDER = 0x0004
            SWP_NOMOVE = 0x0002
            SWP_NOSIZE = 0x0001
            SetWindowPos(hwnd, None, 256, 512, 1024, 768, \
                SWP_NOACTIVATE + \
                SWP_NOZORDER)
            break

        del subwindows[:]
        EnumChildWindows(hwnd, EnumWindowsProc(foreach_subwindow), 0)
        for n, (hwnd2, title2) in enumerate(subwindows, 1):
            #SetWindowPos(hwnd2, None, n * 256, n * 128, n * 512, n * 384, 0x4+0x400+0x200+0x10)

            if False:
                # move inner window up, works but mouse is off
                SWP_NOZORDER = 0x0004
                SWP_NOSENDCHANGING = 0x0400
                SWP_NOREPOSITION = 0x0200
                SWP_NOACTIVATE = 0x0010
                SWP_NOMOVE = 0x0002
                SWP_NOSIZE = 0x0001
                if n == 2:
                    SetWindowPos(hwnd2, None, 0, -85, 0, 0, \
                        SWP_NOZORDER + \
                        SWP_NOACTIVATE + \
                        SWP_NOSIZE)
                    return
            elif False:
                # set alpha of parent window, implementation error causes border to become fully black instead
                LWA_KEY = 1;
                LWA_ALPHA = 2;
                # bool SetLayeredWindowAttributes(
                #   IntPtr hWnd, uint crKey, byte bAlpha, uint dwFlags);

                GWL_STYLE     = -16;
                GWL_EXSTYLE   = -20;
                WS_EX_LAYERED = 0x80000;
                WS_CHILD      = 0x40000000;
                WS_BORDER     = 0x800000; # has border
                WS_DLGFRAME   = 0x400000; # has double border but no title
                WS_CAPTION    = WS_BORDER + WS_DLGFRAME; # has title bar

                # SetLayeredWindowAttributes(
                #   hwnd, 0, (byte)opac, LWA_ALPHA)
                if n == 2:
                    wcfg = GetWindowLong(hwnd2, GWL_EXSTYLE)
                    print(wcfg)
                    #continue
                    wcfg = wcfg ^ WS_EX_LAYERED
                    print(wcfg)
                    #continue
                    SetWindowLong(hwnd2, GWL_EXSTYLE, wcfg)
                    SetLayeredWindowAttributes(hwnd2, 0, LWA_ALPHA)
                    return