World: r3wp
[View] discuss view related issues
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Anton 27-Feb-2007 [6816] | If it is a rebol window, that window gets an active event --- but this is *after* the previous inactive event. |
Henrik 27-Feb-2007 [6817] | another window in the same rebol process or a differen rebol process? |
Anton 27-Feb-2007 [6818x2] | Same process. |
I need something like a "none-active" event that lets me know when all rebol windows are inactive. | |
Henrik 27-Feb-2007 [6820] | I would like to know that too. A program I'm making has a timer mechanism where the program must be active all the time and I want to display an alert if the window gets out of focus. |
Anton 27-Feb-2007 [6821x2] | Maybe the system port ? |
Let me dig around... | |
Henrik 27-Feb-2007 [6823] | never messed with it |
Anton 27-Feb-2007 [6824x9] | How many windows in your program ? |
If only one, it's easy - just trap inactive event. If more than one, and since you are running a timer, you can track the state of all windows and react when a timer event comes along after an inactive event which was not followed by an active event. | |
Probably that's my solution too - run a timer. | |
excellent, time events are still running even when all rebol windows are inactive. This means it's possible. | |
active-windows: [] insert-event-func event-func: func [face event][ ;print event/type if event/type = 'active [if not find active-windows event/face [append active-windows event/face]] if event/type = 'inactive [if find active-windows event/face [remove find active-windows event/face]] if event/type = 'time [ if none-active? <> empty? active-windows [ none-active?: empty? active-windows if none-active? [ print "all windows inactive!!" ] ] ] event ] view/new win1: layout [size 400x250] view/new win2: layout [size 500x200] win1/rate: 0 show win1 ; start time events none-active?: false do-events | |
Can you see any holes in this method ? (Apart from the fact that it requires time events.) | |
I discovered a problem when closing the first window which has RATE set. Now time events no longer flow and so the state isn't detected. But it is solved by catching the close event and setting RATE in a second window. | |
do http://anton.wildit.net.au/rebol/view/detect-all-windows-inactive.r | |
The above seems to be working satisfactorily. It has the limitation of setting the window/rate, though. | |
Maxim 27-Feb-2007 [6833x2] | I handle this by patching the wake-event func and checking if the screen-face/pane has any faces within (which is the pane which holds the windows). when ever this happens, it means all windows are closed. and so I quit with none which disables the do-events. |
obviously I verify after the part which handles any close event types, to make sure I trap any event which would have unviewed the last window or popup. | |
Gregg 27-Feb-2007 [6835] | Seems like it should work Anton. Another way would be to catch the inactive event, set a "deadman switch" timer to go off shortly. When a window gets an 'active event, disable that timer. |
Maxim 27-Feb-2007 [6836x3] | oops... "so I quit with none" above should have read... "so I return with none" |
hum. isn't it possible to have decimal rates? I just tried using 0.5 and am getting no 'time events. is this normal? | |
(v 2.7) | |
Gregg 27-Feb-2007 [6839] | I believe it rounds them. If you want slower rates, use a time! value (e.g. 0:0:2 for every two seconds). |
Anton 27-Feb-2007 [6840x7] | Maxim, catching all *inactive*, not simply closed. |
Gregg, I'm working on that way now. For minimal impact, I only start time events if they aren't running already, and then I restore the window/rate after I catch the first time event. | |
This version uses the "deadman switch" timer idea and is working ok. do http://anton.wildit.net.au/rebol/gui/demo-all-windows-inactive-handler.r | |
http://anton.wildit.net.au/rebol/gui/all-windows-inactive-handler.r | |
The reason I need this is for a pop-menu system (implemented with windows). When a completely different application window becomes active, I want to close all menues and submenues. | |
And it seems to be working for this application.. :) Now the long test... | |
oh no it's buggy. it works sometimes and sometimes not. Damn, time events are tricky. | |
Maxim 28-Feb-2007 [6847x2] | ahhh didn't notice the subtility. |
thanks gregg | |
Brock 6-Mar-2007 [6849x6] | Has anyone done any work on the Rebol Desktop? |
I have an application that might be able to make use of a local web-page like interface to launch Word Documents and web page links. | |
The current application (not my own) uses an HTML page to list all this information, but new versions of MS apps all open the .doc files in the browser window instead of launching Word. The problem here is the .doc files contain macros that run when executed, but this does not happen through the browser. The Word templates also get auto-updated if new versions are available, but this is handled by a secondary .exe file. | |
The templates are stored on the users local computer and essentially build sales documents based on basic user input. | |
Just wondering if this sounds like something that a modified desktop would be able to do. I know this is exactly what IOS does, but this is overkill for this simple document generating tool. | |
I've created a [temporary] group called Desktop as that is likely a better place to discuss this topic. | |
Maxim 6-Mar-2007 [6855] | Hi all, anyone remember an easy to tell if the user called the action of a field from tab or enter? This is causing headaches in user comprehension... windows does not react the same way with enter and tab... right now, pressing tab, triggers actions, which normally should only occur when "enter" is pressed. |
Gregg 6-Mar-2007 [6856] | I think you have to override the feel. |
Maxim 7-Mar-2007 [6857x2] | hahahahahah the field's feel is a typical View obscurity built from hidden contexts which are only availble at boot time :-( |
we can loose 6 hours trying to map all that back up... maybe someone has already done it here? I have the sdk, I could look into it... but its just a question of time... I've got more important code to write than searching for this right now. | |
Gregg 7-Mar-2007 [6859] | Yeah, the View system isn't the easiest thing to work with sometimes. OTOH, it's not so bad when compared to, say, writing Windows custom controls. |
Maxim 7-Mar-2007 [6860] | Not saying its better else where ;-) ... I guess I'll have to make a memoriser within a custom key handler callback in GLayout. that way within the action I can check if the last key press was tab or enter. :-) |
Anton 7-Mar-2007 [6861x4] | Maxim, FIELD's FEEL is not so obscure. You need to bind to CTX-TEXT and SYSTEM/VIEW, that's all. |
Familiarity with the code and a willingness to explore is all you need. Eventually you realise those two contexts are the most important ones in the View system. | |
Actually, investigating what happens when you press tab leads to the following solution: view layout [field with [refocus: func [shift][print "tab pressed"]][print "action"]] | |
The way to this solution: print mold svv/vid-styles/field/feel ; notice: "edit-text" print mold get in ctx-text 'edit-text ; notice: "tab-char" handler | |
Maxim 7-Mar-2007 [6865] | Familiarity with the code and a willingness to explore is all you need. Eventually you realise those two contexts are the most important ones in the View system. I have been peeking around for since view 1.0 and still continue to find new things... sometimes, its just sucha pain, that I give up. the ctx-text cannot be infered by the code... so I have never been able to find it. |
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