focus - QML Keys weird / buggy behavior - event sent to the wrong object -

-

i experiencing weird behavior when handling qml keyboard events. in example, object tree can created, selecting tree element, plus , minus keys should append , remove elements of selected branch, , spacebar should expand or contract selected branch.

enter image description here

but doesn't work expected. while plus , minus work on active element, spacebar always expand/contract root element regardless of element selected. oddly enough, using mouse right button works on correct element expected, achieving desired behavior. both spacebar , right mouse button use practically same code, reason, using spacebar invokes function of root node, not on 1 in focus, should receiving keyboard events.

here relevant part of code:

ui {     id: ui     expanded: true      uilist {         model: ui.proxy.model()     }          rectangle {         width: 50         height: 50         color: ui.activefocus ? "red" : "darkred"         mousearea {             anchors.fill: parent             acceptedbuttons: qt.leftbutton | qt.rightbutton             onclicked: {                 if (mouse.button === qt.leftbutton) ui.forceactivefocus()                 else ui.expanded = !ui.expanded             }         }     }      keys.onpressed: {         switch (event.key) {         case qt.key_plus:             ui.create()             break         case qt.key_minus:             ui.pop()             break         case qt.key_space:             ui.expanded = !ui.expanded             break         }     } }

so turns out forceactivefocus() gives focus not particular element, elements of hierarchy well. event received in target element , cascades down parents until root element.

a simple event.accepted = true in event handler suffices stop propagation down hierarchy.


Comments

Post a Comment

Popular posts from this blog

html - Firefox flex bug applied to buttons? -

-
i'm trying apply flex button on firefox i'm having problem on chrome doesn't happens. this css: .button { display: inline-flex; align-items: center; } as can see in fiddle, "caret" word moved new line, happens if element <button> tag, <div> works expected. http://codepen.io/anon/pen/xblmgx is firefox bug or there css i'm missing? nevermind, looks "mr firefox" doesn't idea... <button> not implementable (by browsers) in pure css, bit of black box, perspective of css. means don't react in same way e.g. <div> would. this isn't specific flexbox -- e.g. don't render scrollbars if put "overflow:scroll" on button, , don't render table if put "display:table" on it. stepping further, isn't specific <button> . consider <fieldset> , <table> have special rendering behavior: data:text/html,<fieldset style="d...
Read more

html - Missing border-right in select on Firefox -

-
Image
when put select div width , padding-left, options have no border on right. more, happend if select have width 118px , parent have 15px of padding left! have idea, going on? my code: <!doctype html> <html> <head lang="en"> </head> <body> <div style="width: 1000px; padding-left: 15px;"> <select style="width: 118px;"> <option>a</option> <option>b</option> <option>c</option> </select> </div> </body> </html> and result: here plunker: click it happend on firefox on windows. tested on 40.0.2 version -webkit-box-sizing: border-box; -moz-box-sizing: border-box; -ms-box-sizing: border-box; box-sizing: border-box; source: https://stackoverflow.com/a/11390432/4431269 source of problem: https://bugzilla.mozilla.org/show_bug.cgi?id=924068 and use of google ! edit: (source of problem, explained) after rea...
Read more

python - build a suggestions list using fuzzywuzzy -

-
i building suggestion engine database. i'm using fuzzywuzzy module match user input string existing database shown below. if request.method == "get": display_dict = {} user_input = request.get["user_input"] # user input match_dict = {} food_items_obj = food_items.objects.all() # fetch objects table items in food_items_obj : match = fuzz.ratio(user_input.lower(),items.name.lower()) # try match user input existing names match_dict[match] = items.name # put 1 dictionary matched_dict = ordereddict(sorted(match_dict.items(),reverse = true)) # sort dictionary if max(matched_dict.keys()) == 100: # if exact match put in dict , return display_dict[100] = matched_dict[100] else : # if not found try best matching words.. ###########this part need help! ############# k,v in matched_dict.items(): if user_input in v : display_dict[k]...
Read more