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; AutoHotkey Version: AutoHotkey 1.1
; Language:           English
; Platform:           Win7 SP1 / Win8.1 / Win10
; Author:             Antonio Bueno <user atnbueno of Google's popular e-mail service>
; Short description:  Gets the URL of the current (active) browser tab for most modern browsers
; Last Mod:           2016-05-19

Menu, Tray, Icon, % A_WinDir "\system32\netshell.dll", 86 ; Shows a world icon in the system tray

ModernBrowsers := "ApplicationFrameWindow,Chrome_WidgetWin_0,Chrome_WidgetWin_1,Maxthon3Cls_MainFrm,MozillaWindowClass,Slimjet_WidgetWin_1"
LegacyBrowsers := "IEFrame,OperaWindowClass"

^+!u::
	nTime := A_TickCount
	sURL := GetActiveBrowserURL()
	WinGetClass, sClass, A
	If (sURL != "")
		MsgBox, % "The URL is """ sURL """`nEllapsed time: " (A_TickCount - nTime) " ms (" sClass ")"
	Else If sClass In % ModernBrowsers "," LegacyBrowsers
		MsgBox, % "The URL couldn't be determined (" sClass ")"
	Else
		MsgBox, % "Not a browser or browser not supported (" sClass ")"
Return

GetActiveBrowserURL() {
	global ModernBrowsers, LegacyBrowsers
	WinGetClass, sClass, A
	If sClass In % ModernBrowsers
		Return GetBrowserURL_ACC(sClass)
	Else If sClass In % LegacyBrowsers
		Return GetBrowserURL_DDE(sClass) ; empty string if DDE not supported (or not a browser)
	Else
		Return ""
}

; "GetBrowserURL_DDE" adapted from DDE code by Sean, (AHK_L version by maraskan_user)
; Found at http://autohotkey.com/board/topic/17633-/?p=434518

GetBrowserURL_DDE(sClass) {
	WinGet, sServer, ProcessName, % "ahk_class " sClass
	StringTrimRight, sServer, sServer, 4
	iCodePage := A_IsUnicode ? 0x04B0 : 0x03EC ; 0x04B0 = CP_WINUNICODE, 0x03EC = CP_WINANSI
	DllCall("DdeInitialize", "UPtrP", idInst, "Uint", 0, "Uint", 0, "Uint", 0)
	hServer := DllCall("DdeCreateStringHandle", "UPtr", idInst, "Str", sServer, "int", iCodePage)
	hTopic := DllCall("DdeCreateStringHandle", "UPtr", idInst, "Str", "WWW_GetWindowInfo", "int", iCodePage)
	hItem := DllCall("DdeCreateStringHandle", "UPtr", idInst, "Str", "0xFFFFFFFF", "int", iCodePage)
	hConv := DllCall("DdeConnect", "UPtr", idInst, "UPtr", hServer, "UPtr", hTopic, "Uint", 0)
	hData := DllCall("DdeClientTransaction", "Uint", 0, "Uint", 0, "UPtr", hConv, "UPtr", hItem, "UInt", 1, "Uint", 0x20B0, "Uint", 10000, "UPtrP", nResult) ; 0x20B0 = XTYP_REQUEST, 10000 = 10s timeout
	sData := DllCall("DdeAccessData", "Uint", hData, "Uint", 0, "Str")
	DllCall("DdeFreeStringHandle", "UPtr", idInst, "UPtr", hServer)
	DllCall("DdeFreeStringHandle", "UPtr", idInst, "UPtr", hTopic)
	DllCall("DdeFreeStringHandle", "UPtr", idInst, "UPtr", hItem)
	DllCall("DdeUnaccessData", "UPtr", hData)
	DllCall("DdeFreeDataHandle", "UPtr", hData)
	DllCall("DdeDisconnect", "UPtr", hConv)
	DllCall("DdeUninitialize", "UPtr", idInst)
	csvWindowInfo := StrGet(&sData, "CP0")
	StringSplit, sWindowInfo, csvWindowInfo, `" ;"; comment to avoid a syntax highlighting issue in autohotkey.com/boards
	Return sWindowInfo2
}

GetBrowserURL_ACC(sClass) {
	global nWindow, accAddressBar
	If (nWindow != WinExist("ahk_class " sClass)) ; reuses accAddressBar if it's the same window
	{
		nWindow := WinExist("ahk_class " sClass)
		accAddressBar := GetAddressBar(Acc_ObjectFromWindow(nWindow))
	}
	Try sURL := accAddressBar.accValue(0)
	If (sURL == "") {
		WinGet, nWindows, List, % "ahk_class " sClass ; In case of a nested browser window as in the old CoolNovo (TO DO: check if still needed)
		If (nWindows > 1) {
			accAddressBar := GetAddressBar(Acc_ObjectFromWindow(nWindows2))
			Try sURL := accAddressBar.accValue(0)
		}
	}
	If ((sURL != "") and (SubStr(sURL, 1, 4) != "http")) ; Modern browsers omit "http://"
		sURL := "http://" sURL
	If (sURL == "")
		nWindow := -1 ; Don't remember the window if there is no URL
	Return sURL
}

; "GetAddressBar" based in code by uname
; Found at http://autohotkey.com/board/topic/103178-/?p=637687

GetAddressBar(accObj) {
	Try If ((accObj.accRole(0) == 42) and IsURL(accObj.accValue(0)))
		Return accObj
	Try If ((accObj.accRole(0) == 42) and IsURL("http://" accObj.accValue(0))) ; Modern browsers omit "http://"
		Return accObj
	For nChild, accChild in Acc_Children(accObj)
		If IsObject(accAddressBar := GetAddressBar(accChild))
			Return accAddressBar
}

IsURL(sURL) {
	Return RegExMatch(sURL, "^(?<Protocol>https?|ftp)://(?<Domain>(?:[\w-]+\.)+\w\w+)(?::(?<Port>\d+))?/?(?<Path>(?:[^:/?# ]*/?)+)(?:\?(?<Query>[^#]+)?)?(?:\#(?<Hash>.+)?)?$")
}

; The code below is part of the Acc.ahk Standard Library by Sean (updated by jethrow)
; Found at http://autohotkey.com/board/topic/77303-/?p=491516

Acc_Init()
{
	static h
	If Not h
		h:=DllCall("LoadLibrary","Str","oleacc","Ptr")
}
Acc_ObjectFromWindow(hWnd, idObject = 0)
{
	Acc_Init()
	If DllCall("oleacc\AccessibleObjectFromWindow", "Ptr", hWnd, "UInt", idObject&=0xFFFFFFFF, "Ptr", -VarSetCapacity(IID,16)+NumPut(idObject==0xFFFFFFF0?0x46000000000000C0:0x719B3800AA000C81,NumPut(idObject==0xFFFFFFF0?0x0000000000020400:0x11CF3C3D618736E0,IID,"Int64"),"Int64"), "Ptr*", pacc)=0
	Return ComObjEnwrap(9,pacc,1)
}
Acc_Query(Acc) {
	Try Return ComObj(9, ComObjQuery(Acc,"{618736e0-3c3d-11cf-810c-00aa00389b71}"), 1)
}
Acc_Children(Acc) {
	If ComObjType(Acc,"Name") != "IAccessible"
		ErrorLevel := "Invalid IAccessible Object"
	Else {
		Acc_Init(), cChildren:=Acc.accChildCount, Children:=[]
		If DllCall("oleacc\AccessibleChildren", "Ptr",ComObjValue(Acc), "Int",0, "Int",cChildren, "Ptr",VarSetCapacity(varChildren,cChildren*(8+2*A_PtrSize),0)*0+&varChildren, "Int*",cChildren)=0 {
			Loop %cChildren%
				i:=(A_Index-1)*(A_PtrSize*2+8)+8, child:=NumGet(varChildren,i), Children.Insert(NumGet(varChildren,i-8)=9?Acc_Query(child):child), NumGet(varChildren,i-8)=9?ObjRelease(child):
			Return Children.MaxIndex()?Children:
		} Else
			ErrorLevel := "AccessibleChildren DllCall Failed"
	}
}

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IsUrl(Url) {
   ComObjError(false) ; Verhindert einen ERROR, wenn die Url nicht existiert
   WebRequest := ComObjCreate("WinHttp.WinHttpRequest.5.1")
   WebRequest.Open("GET", Url)
   WebRequest.Send()
   Zwi := WebRequest.ResponseText
   If StrLen(Zwi)=0 ; Wenn nichts geladen werden konnte.
      Return false
   Return true
}

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RegExMatch(sURL, "^(?<Protocol>https?|ftp)://(?<Domain>(?:[\w-]+\.)+\w\w+)(?::(?<Port>\d+))?/?(?<Path>(?:[^:/?# ]*/?)+)(?:\?(?<Query>[^#]+)?)?(?:\#(?<Hash>.+)?)?$")

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http://anonymouse.org/cgi-bin/anon-www_de.cgi/http://www.mittelbayerische.de

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RegExMatch(sURL, "^(?<Protocol>https?|ftp)://(?:(?<Username>[^:]+)(?::(?<Password>[^@]+))?@)?(?<Domain>(?:[\w-]+\.)+\w\w+)(?::(?<Port>\d+))?/?(?<Path>(?:[^/?# ]*/?)+)(?:\?(?<Query>[^#]+)?)?(?:\#(?<Hash>.+)?)?$")

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RegExMatch(sURL, "^(?<Protocol>https?|ftp)://(?<Domain>(?:[\w-]+\.)+\w\w+)(?::(?<Port>\d+))?/?(?<Path>(?:[^/?# ]*/?)+)(?:\?(?<Query>[^#]+)?)?(?:\#(?<Hash>.+)?)?$")

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#a::
sURL := GetActiveBrowserURL()
IfInString, sURL, autohotkey.com
	MsgBox, Welcome!
Else
	MsgBox, 4, , Do you want to go to autohotkey.com? ; 4=Yes/no
Return