SVGHMI: JsonTable now use intermediate variables again to address JSON data without duplicating code or referencing. Using intermediate variables also alows to check for availability of data and stop evaluating early if data is missing. Finally added complete roundtrip example to illustrate use of JSonTable to display "alarms" collected in python from changes on PLC boolean variables.
// detachable_pages.ysl2
//
// compute what elements are required by pages
// and decide where to cut when removing/attaching
// pages elements on page switch
const "hmi_pages_descs", "$parsed_widgets/widget[@type = 'Page']";
const "hmi_pages", "$hmi_elements[@id = $hmi_pages_descs/@id]";
const "default_page" choose {
when "count($hmi_pages) > 1" {
choose {
when "$hmi_pages_descs/arg[1]/@value = 'Home'" > Home
otherwise {
error "No Home page defined!";
}
}
}
when "count($hmi_pages) = 0" {
error "No page defined!";
}
otherwise > «func:widget($hmi_pages/@id)/arg[1]/@value»
}
emit "preamble:default-page" {
|
| var default_page = "«$default_page»";
}
const "keypads_descs", "$parsed_widgets/widget[@type = 'Keypad']";
const "keypads", "$hmi_elements[@id = $keypads_descs/@id]";
// returns all directly or indirectly refered elements
def "func:refered_elements" {
param "elems";
const "descend", "$elems/descendant-or-self::svg:*";
const "clones", "$descend[self::svg:use]";
const "originals", "//svg:*[concat('#',@id) = $clones/@xlink:href]";
choose {
when "$originals"
result "$descend | func:refered_elements($originals)";
otherwise
result "$descend";
}
}
def "func:all_related_elements" {
param "page";
const "page_overlapping_geometry", "func:overlapping_geometry($page)";
const "page_overlapping_elements", "//svg:*[@id = $page_overlapping_geometry/@Id]";
const "page_sub_elements", "func:refered_elements($page | $page_overlapping_elements)";
result "$page_sub_elements";
}
def "func:required_elements" {
param "pages";
choose{
when "$pages"{
result """func:all_related_elements($pages[1])
| func:required_elements($pages[position()!=1])""";
}otherwise{
result "/..";
}
}
}
const "required_elements",
"""//svg:defs/descendant-or-self::svg:*
| func:required_elements($hmi_pages | $keypads)/ancestor-or-self::svg:*""";
const "discardable_elements", "//svg:*[not(@id = $required_elements/@id)]";
def "func:sumarized_elements" {
param "elements";
const "short_list", "$elements[not(ancestor::*/@id = $elements/@id)]";
const "filled_groups", """$short_list/parent::svg:*[
not(descendant::*[
not(self::svg:g) and
not(@id = $discardable_elements/@id) and
not(@id = $short_list/descendant-or-self::*[not(self::svg:g)]/@id)
])]""";
const "groups_to_add", "$filled_groups[not(ancestor::*/@id = $filled_groups/@id)]";
result "$groups_to_add | $short_list[not(ancestor::svg:g/@id = $filled_groups/@id)]";
}
def "func:detachable_elements" {
param "pages";
choose{
when "$pages"{
result """func:sumarized_elements(func:all_related_elements($pages[1]))
| func:detachable_elements($pages[position()!=1])""";
}otherwise{
result "/..";
}
}
}
// Avoid nested detachables
const "_detachable_elements", "func:detachable_elements($hmi_pages | $keypads)";
const "detachable_elements", "$_detachable_elements[not(ancestor::*/@id = $_detachable_elements/@id)]";
emit "declarations:detachable-elements" {
|
| var detachable_elements = {
foreach "$detachable_elements"{
| "«@id»":[id("«@id»"), id("«../@id»")]`if "position()!=last()" > ,`
}
| }
}
const "forEach_widgets_ids", "$parsed_widgets/widget[@type = 'ForEach']/@id";
const "forEach_widgets", "$hmi_elements[@id = $forEach_widgets_ids]";
const "in_forEach_widget_ids", "func:refered_elements($forEach_widgets)[not(@id = $forEach_widgets_ids)]/@id";
template "svg:*", mode="page_desc" {
const "desc", "func:widget(@id)";
const "page", ".";
const "p", "$geometry[@Id = $page/@id]";
const "page_all_elements", "func:all_related_elements($page)";
const "all_page_widgets","$hmi_elements[@id = $page_all_elements/@id and @id != $page/@id]";
const "page_managed_widgets","$all_page_widgets[not(@id=$in_forEach_widget_ids)]";
const "page_relative_widgets",
"$page_managed_widgets[func:is_descendant_path(func:widget(@id)/path/@value, $desc/path/@value)]";
// Take closest ancestor in detachable_elements
// since nested detachable elements are filtered out
const "required_detachables",
"""func:sumarized_elements($page_all_elements)/
ancestor-or-self::*[@id = $detachable_elements/@id]""";
| "«$desc/arg[1]/@value»": {
//| widget: hmi_widgets["«@id»"],
| bbox: [«$p/@x», «$p/@y», «$p/@w», «$p/@h»],
if "$desc/path/@value" {
if "count($desc/path/@index)=0"
warning > Page id="«$page/@id»" : No match for path "«$desc/path/@value»" in HMI tree
| page_index: «$desc/path/@index»,
}
| widgets: [
foreach "$page_managed_widgets" {
const "widget_paths_relativeness"
foreach "func:widget(@id)/path" {
value "func:is_descendant_path(@value, $desc/path/@value)";
if "position()!=last()" > ,
}
| [hmi_widgets["«@id»"], [«$widget_paths_relativeness»]]`if "position()!=last()" > ,`
}
| ],
| jumps: [
foreach "$parsed_widgets/widget[@id = $all_page_widgets/@id and @type='Jump']" {
const "_id","@id";
const "opts" call "jump_widget_activity" with "hmi_element", "$hmi_elements[@id=$_id]";
if "string-length($opts)>0"
| hmi_widgets["«@id»"]`if "position()!=last()" > ,`
}
| ],
| required_detachables: {
foreach "$required_detachables" {
| "«@id»": detachable_elements["«@id»"]`if "position()!=last()" > ,`
}
| }
/* TODO generate some code for init() instead */
apply "$parsed_widgets/widget[@id = $all_page_widgets/@id]", mode="per_page_widget_template"{
with "page_desc", "$desc";
}
| }`if "position()!=last()" > ,`
}
emit "definitions:page-desc" {
|
| var page_desc = {
apply "$hmi_pages", mode="page_desc";
| }
}
template "*", mode="per_page_widget_template";
emit "debug:detachable-pages" {
|
| DETACHABLES:
foreach "$detachable_elements"{
| «@id»
}
| In Foreach:
foreach "$in_forEach_widget_ids"{
| «.»
}
}