svghmi/hmi_tree.ysl2
author Edouard Tisserant <edouard@beremiz.fr>
Mon, 22 Jul 2024 16:09:12 +0200
changeset 3995 84a668564748
parent 3579 c5070b6973ba
child 4024 f9c6bbf66eea
permissions -rw-r--r--
MQTT: take C part away from python code for readability.

C lines change a bit because of unnecessary escaping for '\'.
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022db76c3bff SVGHMI : create hmi_tree.ysl2, rename bbox_intersect.ysl2 into geometry.ysl2 and move more code into. Add per included ysl2 file debug output.
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parents: 2872
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// hmi_tree.ysl2
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3a0908b0319d SVGHMI: add CURRENT_PAGE_{location} global variable to reflect currently visible page. If PLC wites some valid page reference in that variable, it triggers page switch. Additionally, fixed /HEARTBEAT being subscribed systematically by JS code even when wtchdog is not enabled.
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// Location identifies uniquely SVGHMI instance
3a0908b0319d SVGHMI: add CURRENT_PAGE_{location} global variable to reflect currently visible page. If PLC wites some valid page reference in that variable, it triggers page switch. Additionally, fixed /HEARTBEAT being subscribed systematically by JS code even when wtchdog is not enabled.
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param "instance_name";
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parents: 2872
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// HMI Tree computed from VARIABLES.CSV in svghmi.py
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const "hmitree", "ns:GetHMITree()";
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const "_categories" {
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    noindex > HMI_PLC_STATUS
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    noindex > HMI_CURRENT_PAGE
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}
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const "categories", "exsl:node-set($_categories)";
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// HMI Tree Index
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const "_indexed_hmitree" apply "$hmitree", mode="index";
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const "indexed_hmitree", "exsl:node-set($_indexed_hmitree)";
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94696b3f69fb SVGHMI : still trying to optimize. Added xslt code to identitfy minimum set of elements needed by a particular page. Plan is to remove unseen/unused elements from the DOM, and re-appending them later when used, on page switch. Disabled previous optimization.
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parents: 2842
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emit "preamble:hmi-tree" {
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    | var hmi_hash = [«$hmitree/@hash»];
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    |
ef13a4007538 SVGHMI: spread JS code from svghmi/scripts.ysl2 in other .ysl2 files, using dedicated preamble and epilogue namespaces
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    | var heartbeat_index = «$indexed_hmitree/*[@hmipath = '/HEARTBEAT']/@index»;
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    |
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    | var current_page_var_index = «$indexed_hmitree/*[@hmipath = concat('/CURRENT_PAGE_', $instance_name)]/@index»;
3a0908b0319d SVGHMI: add CURRENT_PAGE_{location} global variable to reflect currently visible page. If PLC wites some valid page reference in that variable, it triggers page switch. Additionally, fixed /HEARTBEAT being subscribed systematically by JS code even when wtchdog is not enabled.
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    |
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    | var hmitree_types = [
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ef13a4007538 SVGHMI: spread JS code from svghmi/scripts.ysl2 in other .ysl2 files, using dedicated preamble and epilogue namespaces
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    foreach "$indexed_hmitree/*" 
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    |     "«substring(local-name(), 5)»"`if "position()!=last()" > ,`
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    | ];
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    |
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    | var hmitree_paths = [
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62753288be74 SVGHMI: Add list of HMI tree path in a JS array, so that we can use it for multiple purpose :
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    foreach "$indexed_hmitree/*" 
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3a0908b0319d SVGHMI: add CURRENT_PAGE_{location} global variable to reflect currently visible page. If PLC wites some valid page reference in that variable, it triggers page switch. Additionally, fixed /HEARTBEAT being subscribed systematically by JS code even when wtchdog is not enabled.
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parents: 3221
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    |     "«@hmipath»"`if "position()!=last()" > ,`
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    | ];
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    |
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3a0908b0319d SVGHMI: add CURRENT_PAGE_{location} global variable to reflect currently visible page. If PLC wites some valid page reference in that variable, it triggers page switch. Additionally, fixed /HEARTBEAT being subscribed systematically by JS code even when wtchdog is not enabled.
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parents: 3221
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    | var hmitree_nodes = {
3a0908b0319d SVGHMI: add CURRENT_PAGE_{location} global variable to reflect currently visible page. If PLC wites some valid page reference in that variable, it triggers page switch. Additionally, fixed /HEARTBEAT being subscribed systematically by JS code even when wtchdog is not enabled.
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parents: 3221
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3a0908b0319d SVGHMI: add CURRENT_PAGE_{location} global variable to reflect currently visible page. If PLC wites some valid page reference in that variable, it triggers page switch. Additionally, fixed /HEARTBEAT being subscribed systematically by JS code even when wtchdog is not enabled.
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    foreach "$indexed_hmitree/*[local-name() = 'HMI_NODE']" 
3a0908b0319d SVGHMI: add CURRENT_PAGE_{location} global variable to reflect currently visible page. If PLC wites some valid page reference in that variable, it triggers page switch. Additionally, fixed /HEARTBEAT being subscribed systematically by JS code even when wtchdog is not enabled.
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    |     "«@hmipath»" : [«@index», "«@class»"]`if "position()!=last()" > ,`
3a0908b0319d SVGHMI: add CURRENT_PAGE_{location} global variable to reflect currently visible page. If PLC wites some valid page reference in that variable, it triggers page switch. Additionally, fixed /HEARTBEAT being subscribed systematically by JS code even when wtchdog is not enabled.
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parents: 3221
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    | };
3a0908b0319d SVGHMI: add CURRENT_PAGE_{location} global variable to reflect currently visible page. If PLC wites some valid page reference in that variable, it triggers page switch. Additionally, fixed /HEARTBEAT being subscribed systematically by JS code even when wtchdog is not enabled.
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parents: 3221
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    |
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}
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template "*", mode="index" {
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    param "index", "0";
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    param "parentpath", "''";
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    const "content" {
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        const "path"
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            choose {
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                when "count(ancestor::*)=0" > /
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                when "count(ancestor::*)=1" > /«@name»
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                otherwise > «$parentpath»/«@name»
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            }
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        choose {
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            when "not(local-name() = $categories/noindex)" {
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                xsl:copy {
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                    attrib "index" > «$index»
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                    attrib "hmipath" > «$path»
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                    foreach "@*" xsl:copy;
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                }
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                apply "*[1]", mode="index"{
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                     with "index", "$index + 1";
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                     with "parentpath" > «$path»
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                }
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            }
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            otherwise {
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                apply "*[1]", mode="index"{
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                    with "index", "$index";
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                    with "parentpath" > «$path»
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                }
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            }
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        }
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    }
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    copy "$content";
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    apply "following-sibling::*[1]", mode="index" {
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        with "index", "$index + count(exsl:node-set($content)/*)";
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        with "parentpath" > «$parentpath»
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    }
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}
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include parse_labels.ysl2
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const "_parsed_widgets" {
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    widget type="VarInitPersistent" {
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        arg value="0";
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        path value="lang";
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    }
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    apply "$hmi_elements", mode="parselabel";
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}
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const "parsed_widgets","exsl:node-set($_parsed_widgets)";
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def "func:widget" {
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    param "id";
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    result "$parsed_widgets/widget[@id = $id]";
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}
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def "func:is_descendant_path" {
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    param "descend";
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    param "ancest";
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    // TODO : use HMI tree to answer more accurately
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    result "string-length($ancest) > 0 and starts-with($descend,$ancest)";
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}
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def "func:same_class_paths" {
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    param "a";
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    param "b";
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    const "class_a", "$indexed_hmitree/*[@hmipath = $a]/@class";
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    const "class_b", "$indexed_hmitree/*[@hmipath = $b]/@class";
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    result "$class_a and $class_b and $class_a = $class_b";
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}
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// Debug data
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template "*", mode="testtree"{
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    param "indent", "''";
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    > «$indent» «local-name()» 
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    foreach "@*" > «local-name()»="«.»" 
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    > \n
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    if "text()" > «text()»\n
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    apply "*", mode="testtree" {
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        with "indent" value "concat($indent,'>')"
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    };
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}
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emit "debug:hmi-tree" {
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    | Raw HMI tree
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    apply "$hmitree", mode="testtree";
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    |
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    | Indexed HMI tree
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    apply "$indexed_hmitree", mode="testtree";
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    |
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    | Parsed Widgets
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    copy "_parsed_widgets";
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    apply "$parsed_widgets", mode="testtree";
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}