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tweaks and fixes...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2019-05-23 19:41:07 +03:00
parent 9d80b05d75
commit 11d4db7732
1 changed files with 21 additions and 2 deletions
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23
ui (gen4)/lib/widget/browse2.js
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@ -201,6 +201,11 @@ object.makeConstructor('BrowserEvent',
stopPropagation: function(){ stopPropagation: function(){
this.propagationStopped = true }, this.propagationStopped = true },
// XXX not used....
defaultPrevented: false,
preventDefault: function(){
this.defaultPrevented = true },
__init__: function(name, ...data){ __init__: function(name, ...data){
// sanity check... // sanity check...
if(arguments.length < 1){ if(arguments.length < 1){
@ -255,15 +260,21 @@ var makeEventMethod = function(event, handler, retrigger){
// -> null // -> null
// //
var callItemEventHandlers = function(item, event, evt, ...args){ var callItemEventHandlers = function(item, event, evt, ...args){
evt = evt || new BrowserEvent(event)
// get the relevant handlers...
;(item[event] ? ;(item[event] ?
[item[event]] [item[event]]
: []) : [])
.concat((item.events || {})[event] || []) .concat((item.events || {})[event] || [])
// call the handlers...
.forEach(function(handler){ .forEach(function(handler){
// XXX revise call signature...
handler.call(item, evt, item, ...args) }) handler.call(item, evt, item, ...args) })
// propagate the event... // propagate the event...
// NOTE: .parent of items in an array container is the first actual
// browser container up the tree, so we do not need to skip
// non-browser parents...
item.parent item.parent
&& item.parent.trigger
&& item.parent.trigger(evt, item, ...args) } && item.parent.trigger(evt, item, ...args) }
// Generate item event method... // Generate item event method...
@ -285,6 +296,9 @@ var callItemEventHandlers = function(item, event, evt, ...args){
// handling. (XXX is this correct?) // handling. (XXX is this correct?)
// - a parent that may contain multiple items will get triggered // - a parent that may contain multiple items will get triggered
// multiple times, once per each item... // multiple times, once per each item...
// NOTE: item events do not directly trigger the original caller's handlers
// those will get celled recursively when the events are propagated
// up the tree.
// //
// XXX should we have one event instance per call or one event per item matched??? // XXX should we have one event instance per call or one event per item matched???
// .stopPropagation() affects an event object thus creating one per item // .stopPropagation() affects an event object thus creating one per item
@ -307,7 +321,12 @@ var makeItemEventMethod = function(event, handler, options){
&& handler.call(this, evt, item.slice(), ...args) && handler.call(this, evt, item.slice(), ...args)
item.forEach(function(item){ item.forEach(function(item){
// XXX should we clone the event here??? // XXX should we clone the event here???
callItemEventHandlers(item, event, evt, ...args) }) }, //callItemEventHandlers(item, event, evt, ...args) }) },
// NOTE: we ignore the root event here and force each
// item chain to create it's own new event object...
// this will isolate each chain from the others in
// state and handling propagation...
callItemEventHandlers(item, event, null, ...args) }) },
false) false)
return Object.assign( return Object.assign(
// the actual method we return... // the actual method we return...