IDE: Optimization of modification events processing in text editors.
Too many modifications types where registered, and then too many events were fired.
Also, in case of uninterrupted sequence of events, updates to the model is deferred to the end of that sequence (wx.Callafter).
// widget_assign.ysl2
widget_desc("Assign") {
longdesc
||
Arguments are either:
- name=value: setting variable with literal value.
- name=other_name: copy variable content into another
"active"+"inactive" labeled elements can be provided to show feedback when pressed
Exemples:
HMI:Assign:notify=1@notify=/PLCVAR
HMI:Assign:ack=2:notify=1@ack=.local_var@notify=/PLCVAR
||
shortdesc > Assign variables on click
}
widget_class("Assign") {
||
frequency = 2;
onmouseup(evt) {
svg_root.removeEventListener("pointerup", this.bound_onmouseup, true);
if(this.enable_state) {
this.activity_state = false
this.request_animate();
this.assign();
}
}
onmousedown(){
if(this.enable_state) {
svg_root.addEventListener("pointerup", this.bound_onmouseup, true);
this.activity_state = true;
this.request_animate();
}
}
||
}
widget_defs("Assign") {
optional_activable();
| init: function() {
| this.bound_onmouseup = this.onmouseup.bind(this);
| this.element.addEventListener("pointerdown", this.onmousedown.bind(this));
| },
| assignments: {},
| dispatch: function(value, oldval, varnum) {
const "widget", ".";
foreach "path" {
const "varid","generate-id()";
const "varnum","position()-1";
if "@assign" foreach "$widget/path[@assign]" if "$varid = generate-id()" {
| if(varnum == «$varnum») this.assignments["«@assign»"] = value;
}
}
| },
| assign: function() {
const "paths","path";
foreach "arg[contains(@value,'=')]"{
const "name","substring-before(@value,'=')";
const "value","substring-after(@value,'=')";
const "index" foreach "$paths" if "@assign = $name" value "position()-1";
const "isVarName", "regexp:test($value,'^[a-zA-Z_][a-zA-Z0-9_]+$')";
choose {
when "$isVarName"{
| const «$value» = this.assignments["«$value»"];
| if(«$value» != undefined)
| this.apply_hmi_value(«$index», «$value»);
}
otherwise {
| this.apply_hmi_value(«$index», «$value»);
}
}
}
| },
}