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[AHK_L] Custom AutoCompletion for edit control, with drop down list

Started by nepter , Aug 08 2013 08:44 AM

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nepter
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Introduction:

Autocompletion expands strings that have been partially entered in an edit control into complete strings. For example, when a user starts to enter a URL in the Address edit control that is embedded in the Windows Internet Explorer toolbar, autocompletion expands the string into one or more complete URL options that are consistent with the existing partial string. A partial URL string such as "mic" might be expanded to "http://www.microsoft.com" or "http://www.microsoft.com/windows". Autocompletion is typically used with edit controls or with controls that have an embedded edit control, such as the ComboBoxEx control.

 

Fix:

1. now work on ANSI and Unicode AHK_L

 

Library Usage:

/*	Autocompletion
	
	Function	:	Autocomplete(hwnd , action , p1=0 , p2=0)
	Parameter
		hwnd	:	hwnd of edit control
		action	:	init , enable , disable , release , option
	
	Usage:
	
	1.	Initializes the autocomplete object.
	Function	:	Autocomplete(hwnd , "init" , txt , delim)
	Parameter
		txt		:	Autocomplete list
		delim	:	delimiter seperate each item
	
	2. 	Enables autocompletion.
	Function	:	Autocomplete(hwnd , "enable" , 0 , 0)
		
	3.	Disables autocompletion.
	Function	:	Autocomplete(hwnd , "disable" , 0 , 0)
		
	4.	Release autocompletion.
	Function	:	Autocomplete(hwnd , "release" , 0 , 0)
		
	5.	Sets the current autocomplete options.
	Function	:	Autocomplete(hwnd , "option" , mode , 0)
	Parameter
		mode	:	options seperated by space
		AUTOSUGGEST			:	Enable the autosuggest drop-down list.
		AUTOAPPEND			:	Enable autoappend.
		SEARCH				:	Add a search item to the list of completed strings. When the user selects this item, it launches a search engine.
		FILTERPREFIXES		:	Do not match common prefixes, such as "www." or "http://".
		USETAB				:	Use the TAB key to select an item from the drop-down list.
		UPDOWNKEYDROPSLIST	:	Use the UP ARROW and DOWN ARROW keys to display the autosuggest drop-down list.
		RTLREADING			:	read right-to-left (RTL). 
		WORD_FILTER			:	If set, the autocompleted suggestion is treated as a phrase for search purposes.
		NOPREFIXFILTERING	:	Disable prefix filtering when displaying the autosuggest dropdown. Always display all suggestions.
*/

Code:

AutoComplete(self,celt,rgelt,pceltFetched){
    static es:=[]
    if (celt="init"){ ; Initializes the autocomplete object.
        sList:=[]
        loop,parse,rgelt,%pceltFetched%,%A_Space%%A_Tab%
            sList[A_Index]:=A_LoopField
        obj:=[],obj.List:=sList,obj.CurrentElement:=1,obj.hwnd:=self
        obj.SetCapacity("EnumString",A_PtrSize*8)
        pes:=obj.GetAddress("EnumString")
        ,NumPut(pes+A_PtrSize,pes+0)
        ,NumPut(RegisterCallback("_EnumString_QueryInterface","F"),pes+A_PtrSize*1)
        ,NumPut(RegisterCallback("_EnumString_AddRef","F"),pes+A_PtrSize*2)
        ,NumPut(RegisterCallback("_EnumString_Release","F"),pes+A_PtrSize*3)
        ,NumPut(RegisterCallback(A_ThisFunc,"F"),pes+A_PtrSize*4)
        ,NumPut(RegisterCallback("_EnumString_Skip","F"),pes+A_PtrSize*5)
        ,NumPut(RegisterCallback("_EnumString_Reset","F"),pes+A_PtrSize*6)
        ,NumPut(RegisterCallback("_EnumString_Clone","F"),pes+A_PtrSize*7)
        pac2:=ComObjCreate("{00BB2763-6A77-11D0-A535-00C04FD7D062}","{EAC04BC0-3791-11d2-BB95-0060977B464C}")    ; IAutoComplete2
        obj.pac:=pac2
        DllCall(NumGet(NumGet(pac2+0)+3*A_PtrSize),"ptr",pac2,"ptr",self,"ptr",pes,"ptr",0,"ptr",0,"uint")
        es[pes]:=obj
        return 0
    }else if (celt="enable"){ ; Enables autocompletion.
        for k,v in es
        {
            if (v.hwnd=self)
                return DllCall(NumGet(NumGet(v.pac+0)+4*A_PtrSize),"ptr",v.pac,"int",1,"uint")
        }
        return
    }else if (celt="disable"){ ; Disables autocompletion.
        for k,v in es
        {
            if (v.hwnd=self)
                return DllCall(NumGet(NumGet(v.pac+0)+4*A_PtrSize),"ptr",v.pac,"int",0,"uint")
        }
        return
    }else if (celt="release"){ ; Release autocompletion.
        for k,v in es
        {
            if (v.hwnd=self)
                ObjRelease(v.pac),es.remove(k)
        }
        return
    }else if (celt="option"){ ; Sets the current autocomplete options.
        if rgelt is Integer
        {
            if rgelt<0x200
                option:=rgelt
            else return
        }else{
            mode:={AUTOSUGGEST:1    ; Enable the autosuggest drop-down list.
                ,AUTOAPPEND:2        ; Enable autoappend.
                ,SEARCH:4            ; Add a search item to the list of completed strings. When the user selects this item, it launches a search engine.
                ,FILTERPREFIXES:8    ; Do not match common prefixes, such as "www." or "http://".
                ,USETAB:0x10        ; Use the TAB key to select an item from the drop-down list.
                ,UPDOWNKEYDROPSLIST:0x20    ; Use the UP ARROW and DOWN ARROW keys to display the autosuggest drop-down list.
                ,RTLREADING:0x40    ; read right-to-left (RTL).
                ,WORD_FILTER:0x80    ; If set, the autocompleted suggestion is treated as a phrase for search purposes. The suggestion, Microsoft Office, would be treated as "Microsoft Office" (where both Microsoft AND Office must appear in the search results).
                ,NOPREFIXFILTERING:0x100}    ; Disable prefix filtering when displaying the autosuggest dropdown. Always display all suggestions.
            option:=0
            loop,parse,rgelt,%A_Space%
                if mode[A_LoopField]
                    option|=mode[A_LoopField]
        }
        for k,v in es
        {
            if (v.hwnd=self)
                return DllCall(NumGet(NumGet(v.pac+0)+5*A_PtrSize),"ptr",v.pac,"uint",option,"uint") ; IAutoComplete2::SetOptions
        }
        return
    }else if !es.haskey(self){
        return 1
    }else if (celt="reset"){ ; Resets the enumeration sequence to the beginning.
        es[self].CurrentElement:=1
    }
    
    if !celt
        celt:=1
    i:=0
    loop % celt ; IEnumString::Next method
    {
        if (es[self].CurrentElement=es[self].List.maxindex()+1)
            break
        string:=es[self].List[es[self].CurrentElement]
        NumPut(p:=DllCall("Ole32\CoTaskMemAlloc","uint",len:=2*(StrPut(string,"utf-16"))),rgelt+(A_Index-1)*A_PtrSize)
        ;DllCall("RtlMoveMemory","ptr",p,"ptr",&string,"uint",len)
        StrPut(string,p,"utf-16")
        NumPut(NumGet(pceltFetched+0,"uint")+1,pceltFetched,0,"uint")
        es[self].CurrentElement:=es[self].CurrentElement+1
        i++
    }
    return (i=celt)?0:1
}

_EnumString_QueryInterface(self,riid,pObj){
    DllCall("Ole32\StringFromCLSID","ptr",riid,"ptr*",sz),string:=StrGet(sz,"utf-16")
    if (string="{00000101-0000-0000-C000-000000000046}"){
        return NumPut(self,pObj+0)*0
    }else return 0x80004002
}

_EnumString_AddRef(self){
    return 1
}

_EnumString_Release(self){
    return 0
}

_EnumString_Skip(self,celt){
    return 0
}

_EnumString_Reset(self){
    AutoComplete(self,"reset",0,0)
    return 0
}

_EnumString_Clone(self,ppenum){
    NumPut(self,ppenum+0)
    return 0
}

Sample:

Press " I'm fine" or "That's ok" or "Thank you" or "Oh my god" , and see what happens

gui,new,hwndhgui
gui,add,edit,w300 h30 hwndhedit
gui,show

txt=I'm fine;That's ok;Thank you;Oh my god
AutoComplete(hedit,"init",txt,";")
AutoComplete(hedit,"option","AUTOSUGGEST AUTOAPPEND",0)
return

#1 - Posted 08 August 2013 - 08:44 AM
faqbot
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Very nice, thank you.
#2 - Posted 08 August 2013 - 07:09 PM

Unofficial AHK FAQ now available as GIST

jballi
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Cool beans. cool.png Thanks for sharing.


#3 - Posted 10 August 2013 - 11:18 PM
HotKeyIt
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Very nice, thank you ;)


#4 - Posted 11 August 2013 - 12:54 AM

http://ahkscript.org/boards/ - AHK_H (2alpha) AHF TT _Struct WatchDir Yaml _Input ObjTree RapidHotkey DynaRun WinAPI

tmplinshi
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Very nice, thank you.

 

It only works on Unicode AHK, can anyone makes it working on ANSI AHK?


#5 - Posted 11 August 2013 - 09:21 AM

http://ahkscript.org/boards/

nepter
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It only works on Unicode AHK, can anyone makes it working on ANSI AHK?

Fixed, now work on ansi ahk.


#6 - Posted 11 August 2013 - 10:18 AM
tmplinshi
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Fixed, now work on ansi ahk.

Thanks again.
 
Another question: How to close the drop down list by pressing Esc key? This code doesn't work:
Esc::Control, HideDropDown,, SysListView321, A

Edited by tmplinshi, 11 August 2013 - 04:09 PM.

#7 - Posted 11 August 2013 - 03:47 PM

http://ahkscript.org/boards/

ahkkha
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Nice!

 

Can InputBox uses it ?

 

If so, How can i get the hwnd of a InputBox ?


#8 - Posted 11 August 2013 - 05:01 PM
HotKeyIt
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SetTimer,InputBox,-100
InputBox,var
MsgBox % var
ExitApp
InputBox:
  txt=I'm fine;That's ok;Thank you;Oh my god
  WinWaitActive,%A_ScriptName% ahk_class #32770
  ControlGet,hedit,hwnd,,Edit1,A
  AutoComplete(hedit,"init",txt,";")
  AutoComplete(hedit,"option","AUTOSUGGEST AUTOAPPEND",0)
return

#9 - Posted 11 August 2013 - 05:34 PM

http://ahkscript.org/boards/ - AHK_H (2alpha) AHF TT _Struct WatchDir Yaml _Input ObjTree RapidHotkey DynaRun WinAPI

nepter
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Another question: How to close the drop down list by pressing Esc key? This code doesn't work:

Autocomplete(hedit , "disable" , 0 , 0)   to disable it

or AutoComplete(hedit,"option","AUTOAPPEND",0)  just AUTOAPPEND not AUTOSUGGEST

 

 

If so, How can i get the hwnd of a InputBox ?

MouseGetPos,,,hwnd,hedit,2


#10 - Posted 11 August 2013 - 05:37 PM
ahkkha
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SetTimer,InputBox,-100
InputBox,var
MsgBox % var
ExitApp
InputBox:
  txt=I'm fine;That's ok;Thank you;Oh my god
  WinWaitActive,%A_ScriptName% ahk_class #32770
  ControlGet,hedit,hwnd,,Edit1,A
  AutoComplete(hedit,"init",txt,";")
  AutoComplete(hedit,"option","AUTOSUGGEST AUTOAPPEND",0)
return

 

Very cool, Thanks HotKeyIt.

 

MouseGetPos,,,hwnd,hedit,2

 

Thanks nepter.


#11 - Posted 12 August 2013 - 12:58 AM
tmplinshi
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Autocomplete(hedit , "disable" , 0 , 0)   to disable it
or AutoComplete(hedit,"option","AUTOAPPEND",0)  just AUTOAPPEND not AUTOSUGGEST


Thanks. It works.
--------------------

Below code will crash sometimes. Could you have a look at it?

#Include <AutoComplete>

gui,new,hwndhgui
gui,add,edit,w300 hwndhedit1
gui,add,edit,w300 hwndhedit2
gui,add,edit,w300 hwndhedit3
gui,show

txt=I'm fine;That's ok;Thank you;Oh my god

AutoComplete(hedit1,"init",txt,";")
AutoComplete(hedit1,"option","AUTOSUGGEST AUTOAPPEND",0)

AutoComplete(hedit2,"init",txt,";")
AutoComplete(hedit2,"option","AUTOSUGGEST AUTOAPPEND",0)

AutoComplete(hedit3,"init",txt,";")
AutoComplete(hedit3,"option","AUTOSUGGEST AUTOAPPEND",0)
return

#12 - Posted 14 August 2013 - 09:12 PM

http://ahkscript.org/boards/

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