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Message from discussion ediff frame appear in another page of Fvwm. How to debug/fix?
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jpkotta  
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 More options Sep 26 2012, 11:08 am
Newsgroups: gnu.emacs.help
From: jpkotta <jpko...@gmail.com>
Date: Wed, 26 Sep 2012 08:07:55 -0700 (PDT)
Local: Wed, Sep 26 2012 11:07 am
Subject: Re: ediff frame appear in another page of Fvwm. How to debug/fix?
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On Wednesday, September 26, 2012 4:23:04 AM UTC-5, Oleksandr Gavenko wrote:
> M-x ediff RET RET create ediff frame. It shown at right upper corner.

> But recently it shown in another page of Fvwm, so I don't see main Emacs frame.

> I try set:

> (defun my-ediff-control-frame-position

> (ctl-buffer ctl-frame-width ctl-frame-height)

>   (list '(name . "TEST Ediff") '(top . -10) '(left . -30)))

> - now it appear on another page but lower right corner.

> I try disable my Fvwm hack:

> DestroyFunc MyFuncFocusWindow

> AddToFunc MyFuncFocusWindow

> + I FlipFocus

> + I WarpToWindow 50 50

> DestroyModuleConfig FvwmEvent-NewWindow

> *FvwmEvent-NewWindow: Cmd

> *FvwmEvent-NewWindow: Delay 1

> *FvwmEvent-NewWindow: StartDelay 10

> *FvwmEvent-NewWindow: add_window MyFuncFocusWindow

> AddToFunc StartFunction I Module FvwmEvent

> AddToFunc StartFunction I FvwmEvent FvwmEvent-NewWindow

> and now ediff work good.

> This Fvwm code emulate Windows focus behavior that I like.

> Any suggestion to fix issue?
On Wednesday, September 26, 2012 4:23:04 AM UTC-5, Oleksandr Gavenko wrote:
> M-x ediff RET RET create ediff frame. It shown at right upper corner.

> But recently it shown in another page of Fvwm, so I don't see main Emacs frame.

> I try set:

> (defun my-ediff-control-frame-position

> (ctl-buffer ctl-frame-width ctl-frame-height)

>   (list '(name . "TEST Ediff") '(top . -10) '(left . -30)))

> - now it appear on another page but lower right corner.

> I try disable my Fvwm hack:

> DestroyFunc MyFuncFocusWindow

> AddToFunc MyFuncFocusWindow

> + I FlipFocus

> + I WarpToWindow 50 50

> DestroyModuleConfig FvwmEvent-NewWindow

> *FvwmEvent-NewWindow: Cmd

> *FvwmEvent-NewWindow: Delay 1

> *FvwmEvent-NewWindow: StartDelay 10

> *FvwmEvent-NewWindow: add_window MyFuncFocusWindow

> AddToFunc StartFunction I Module FvwmEvent

> AddToFunc StartFunction I FvwmEvent FvwmEvent-NewWindow

> and now ediff work good.

> This Fvwm code emulate Windows focus behavior that I like.

> Any suggestion to fix issue?

Are you talking about the ediff control window?  Personally, I prefer it to be in the same frame as the buffers being compared: (setq ediff-window-setup-function 'ediff-setup-windows-plain).

But even when I use emacs -q and run ediff, the control frame never goes off the page, so it must be related to your Fvwm config.  I doubt it has anything to do with changing focus; it's probably due to whatever placement styles you have enabled.  Here is the part of my Fvwm config which is probably relevant:

,----
| Style * SnapAttraction 10 All Screen
|
| Style * ResizeOpaque
|
| Style * UsePPosition
|
| Style * MinOverlapPlacement
|
| # start on screen with pointer
| Style * StartsOnScreen c
|
| # do not jump to a desk that a window suddenly pops up on
| Style * SkipMapping
`----
,----
| # widows are focused by clicking on them
| # the focusing click is passed to the window
| # clicking in the window does not raise, but clicking on the decorations does
| Style * ClickToFocus, FPClickDecorToFocus
| Style * !FPClickRaisesFocused, !FPClickRaisesUnfocused, \
|     FPClickDecorRaisesFocused, FPClickDecorRaisesUnfocused
|
| # programs can focus themselves
| Style * FPFocusByProgram
|
| # new windows/transients grab the focus when created
| # closing a window/transient releases focus to the previously focused window
| Style * FPGrabFocus, FPGrabFocusTransient, FPReleaseFocus, FPReleaseFocusTransient
`----

I don't have any emacs-specific fvwm styles.  You should probably ask the Fvwm list.


 
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