--- a/svghmi/gen_index_xhtml.xslt	Thu Oct 10 10:03:47 2019 +0200
+++ b/svghmi/gen_index_xhtml.xslt	Fri Oct 11 12:03:14 2019 +0200
@@ -3,7 +3,7 @@
   <xsl:output method="xml" cdata-section-elements="script"/>
   <xsl:variable name="geometry" select="ns:GetSVGGeometry()"/>
   <xsl:variable name="hmitree" select="ns:GetHMITree()"/>
-  <xsl:variable name="hmi_elements" select="//*[starts-with(@inkscape:label, 'HMI:')]"/>
+  <xsl:variable name="hmi_elements" select="//svg:*[starts-with(@inkscape:label, 'HMI:')]"/>
   <xsl:variable name="hmi_geometry" select="$geometry[@Id = $hmi_elements/@id]"/>
   <xsl:variable name="hmi_pages" select="$hmi_elements[func:parselabel(@inkscape:label)/widget/@type = 'Page']"/>
   <xsl:variable name="default_page">
@@ -179,27 +179,30 @@
     <func:result select="exsl:node-set($ast)"/>
   </func:function>
   <xsl:template name="scripts">
-    <xsl:text>var hmi_index = {
-</xsl:text>
-    <xsl:variable name="svg" select="/"/>
-    <xsl:for-each select="$indexed_hmitree/*">
-      <xsl:value-of select="@index"/>
+    <xsl:text>var hmi_hash = [</xsl:text>
+    <xsl:value-of select="$hmitree/@hash"/>
+    <xsl:text>]; 
+</xsl:text>
+    <xsl:text>var hmi_widgets = {
+</xsl:text>
+    <xsl:for-each select="$hmi_elements">
+      <xsl:variable name="widget" select="func:parselabel(@inkscape:label)/widget"/>
+      <xsl:value-of select="@id"/>
       <xsl:text>: {
 </xsl:text>
-      <xsl:text>    name: "</xsl:text>
-      <xsl:value-of select="@name"/>
+      <xsl:text>    type: "</xsl:text>
+      <xsl:value-of select="$widget/@type"/>
       <xsl:text>",
 </xsl:text>
-      <xsl:text>    hmipath: "</xsl:text>
-      <xsl:value-of select="@hmipath"/>
-      <xsl:text>"
-</xsl:text>
-      <xsl:text>    ids: [
-</xsl:text>
-      <xsl:variable name="hmipath" select="@hmipath"/>
-      <xsl:for-each select="$svg//*[substring-after(@inkscape:label,'@') = $hmipath]">
+      <xsl:text>    frequency: </xsl:text>
+      <xsl:apply-templates mode="refresh_frequency" select="$widget"/>
+      <xsl:text>,
+</xsl:text>
+      <xsl:text>    args: [
+</xsl:text>
+      <xsl:for-each select="$widget/arg">
         <xsl:text>        "</xsl:text>
-        <xsl:value-of select="@id"/>
+        <xsl:value-of select="@value"/>
         <xsl:text>"</xsl:text>
         <xsl:if test="position()!=last()">
           <xsl:text>,</xsl:text>
@@ -207,6 +210,28 @@
         <xsl:text>
 </xsl:text>
       </xsl:for-each>
+      <xsl:text>    ],
+</xsl:text>
+      <xsl:text>    paths: [
+</xsl:text>
+      <xsl:for-each select="$widget/path">
+        <xsl:variable name="hmipath" select="@value"/>
+        <xsl:variable name="hmitree_match" select="$indexed_hmitree/*[@hmipath = $hmipath]"/>
+        <xsl:if test="count($hmitree_match) = 0">
+          <xsl:message terminate="yes">
+            <xsl:text>No match for HMI </xsl:text>
+            <xsl:value-of select="$hmipath"/>
+            <xsl:text>;</xsl:text>
+          </xsl:message>
+        </xsl:if>
+        <xsl:text>        </xsl:text>
+        <xsl:value-of select="$hmitree_match/@index"/>
+        <xsl:if test="position()!=last()">
+          <xsl:text>,</xsl:text>
+        </xsl:if>
+        <xsl:text>
+</xsl:text>
+      </xsl:for-each>
       <xsl:text>    ]
 </xsl:text>
       <xsl:text>}</xsl:text>
@@ -220,10 +245,54 @@
 </xsl:text>
     <xsl:text>
 </xsl:text>
+    <xsl:text>var hmi_index = [
+</xsl:text>
+    <xsl:variable name="svg" select="/"/>
+    <xsl:for-each select="$indexed_hmitree/*">
+      <xsl:text>{   /* </xsl:text>
+      <xsl:value-of select="@index"/>
+      <xsl:text>  </xsl:text>
+      <xsl:value-of select="@hmipath"/>
+      <xsl:text> */
+</xsl:text>
+      <xsl:text>    type: "</xsl:text>
+      <xsl:value-of select="local-name()"/>
+      <xsl:text>",
+</xsl:text>
+      <xsl:text>    ids: [
+</xsl:text>
+      <xsl:variable name="hmipath" select="@hmipath"/>
+      <xsl:for-each select="$svg//*[substring-after(@inkscape:label,'@') = $hmipath]">
+        <xsl:text>        hmi_widgets["</xsl:text>
+        <xsl:value-of select="@id"/>
+        <xsl:text>"]</xsl:text>
+        <xsl:if test="position()!=last()">
+          <xsl:text>,</xsl:text>
+        </xsl:if>
+        <xsl:text>
+</xsl:text>
+      </xsl:for-each>
+      <xsl:text>    ]
+</xsl:text>
+      <xsl:text>}</xsl:text>
+      <xsl:if test="position()!=last()">
+        <xsl:text>,</xsl:text>
+      </xsl:if>
+      <xsl:text>
+</xsl:text>
+    </xsl:for-each>
+    <xsl:text>]
+</xsl:text>
+    <xsl:text>
+</xsl:text>
     <xsl:text>var page_desc = {
 </xsl:text>
     <xsl:for-each select="$hmi_pages">
       <xsl:variable name="desc" select="func:parselabel(@inkscape:label)/widget"/>
+      <xsl:variable name="page" select="."/>
+      <xsl:variable name="p" select="$hmi_geometry[@Id = $page/@id]"/>
+      <xsl:variable name="page_ids" select="$hmi_geometry[@Id != $page/@id and &#10;                                @x &gt;= $p/@x and @y &gt;= $p/@y and &#10;                                @x+@w &lt;= $p/@x+$p/@w and @y+@h &lt;= $p/@y+$p/@h]/@Id"/>
+      <xsl:variable name="page_elements" select="$hmi_elements[@id = $page_ids]"/>
       <xsl:text>    "</xsl:text>
       <xsl:value-of select="$desc/arg[1]/@value"/>
       <xsl:text>": {
@@ -234,11 +303,9 @@
 </xsl:text>
       <xsl:text>        widgets: [
 </xsl:text>
-      <xsl:variable name="page" select="."/>
-      <xsl:variable name="p" select="$hmi_geometry[@Id = $page/@id]"/>
-      <xsl:for-each select="$hmi_geometry[@Id != $page/@id and &#10;                       @x &gt;= $p/@x and @y &gt;= $p/@y and &#10;                       @x+@w &lt;= $p/@x+$p/@w and @y+@h &lt;= $p/@y+$p/@h]">
+      <xsl:for-each select="$page_ids">
         <xsl:text>            "</xsl:text>
-        <xsl:value-of select="@Id"/>
+        <xsl:value-of select="."/>
         <xsl:text>"</xsl:text>
         <xsl:if test="position()!=last()">
           <xsl:text>,</xsl:text>
@@ -248,6 +315,30 @@
       </xsl:for-each>
       <xsl:text>        ]
 </xsl:text>
+      <xsl:text>        subscriptions: [
+</xsl:text>
+      <xsl:for-each select="$page_elements">
+        <xsl:variable name="hmipaths" select="func:parselabel(@inkscape:label)/widget/path/@value"/>
+        <xsl:variable name="notlast" select="position()!=last()"/>
+        <xsl:for-each select="$hmipaths">
+          <xsl:variable name="hmipath" select="."/>
+          <xsl:text>            </xsl:text>
+          <xsl:value-of select="$indexed_hmitree/*[@hmipath = $hmipath]/@index"/>
+          <xsl:if test="$notlast or position()!=last()">
+            <xsl:text>,</xsl:text>
+          </xsl:if>
+          <xsl:text>
+</xsl:text>
+        </xsl:for-each>
+      </xsl:for-each>
+      <xsl:text>        ]
+</xsl:text>
+      <xsl:text>    }</xsl:text>
+      <xsl:if test="position()!=last()">
+        <xsl:text>,</xsl:text>
+      </xsl:if>
+      <xsl:text>
+</xsl:text>
     </xsl:for-each>
     <xsl:text>}
 </xsl:text>
@@ -321,13 +412,11 @@
 </xsl:text>
     <xsl:text>
 </xsl:text>
-    <xsl:text>
-</xsl:text>
     <xsl:text>    // subscription state as needed by widget now
 </xsl:text>
     <xsl:text>    // expected {index:[widgets]};
 </xsl:text>
-    <xsl:text>    var subscribers = {};
+    <xsl:text>    var subscribers = new Map();
 </xsl:text>
     <xsl:text>
 </xsl:text>
@@ -337,24 +426,30 @@
 </xsl:text>
     <xsl:text>        let delta = [];
 </xsl:text>
-    <xsl:text>        Object.keys(subscribers).forEach(index =&gt; {
-</xsl:text>
-    <xsl:text>
+    <xsl:text>        for(let [index, widgets] in subscribers.entries()){
+</xsl:text>
+    <xsl:text>
+</xsl:text>
+    <xsl:text>            // periods are in ms
 </xsl:text>
     <xsl:text>            let previous_period = subscriptions.get(index);
 </xsl:text>
-    <xsl:text>            delete subscriptions[index];
-</xsl:text>
-    <xsl:text>
-</xsl:text>
-    <xsl:text>            let new_period = Math.min(...widgets.map(widget =&gt; widget.period));
-</xsl:text>
-    <xsl:text>
-</xsl:text>
-    <xsl:text>            if(previous_period != new_period) 
+    <xsl:text>
+</xsl:text>
+    <xsl:text>            let new_period = Math.min(...widgets.map(widget =&gt; 1000/widget.frequency));
+</xsl:text>
+    <xsl:text>
+</xsl:text>
+    <xsl:text>            if(previous_period != new_period) {
+</xsl:text>
+    <xsl:text>                subscriptions.set(index, new_period);
 </xsl:text>
     <xsl:text>                delta.push({index: index, period: new_period});
 </xsl:text>
+    <xsl:text>            }
+</xsl:text>
+    <xsl:text>            
+</xsl:text>
     <xsl:text>        })
 </xsl:text>
     <xsl:text>        return result;
@@ -373,8 +468,28 @@
 </xsl:text>
     <xsl:text>
 </xsl:text>
+    <xsl:text>    var current_page = default_page;
+</xsl:text>
+    <xsl:text>
+</xsl:text>
     <xsl:text>    function switch_page(page_name) {
 </xsl:text>
+    <xsl:text>        let new_desc = page_desc[page_name];
+</xsl:text>
+    <xsl:text>        let old_desc = page_desc[page_name];
+</xsl:text>
+    <xsl:text>        /* TODO hide / show widgets */
+</xsl:text>
+    <xsl:text>        /* TODO move viewport */
+</xsl:text>
+    <xsl:text>
+</xsl:text>
+    <xsl:text>        /* Update subscribers */
+</xsl:text>
+    <xsl:text>        /* Update subscriptions */
+</xsl:text>
+    <xsl:text>
+</xsl:text>
     <xsl:text>
 </xsl:text>
     <xsl:text>    };
@@ -456,4 +571,16 @@
       </xsl:with-param>
     </xsl:apply-templates>
   </xsl:template>
+  <xsl:template mode="refresh_frequency" match="widget">
+    <xsl:text>10</xsl:text>
+  </xsl:template>
+  <xsl:template mode="refresh_frequency" match="widget[@type='Meter']">
+    <xsl:text>10</xsl:text>
+  </xsl:template>
+  <xsl:template mode="refresh_frequency" match="widget[@type='Display']">
+    <xsl:text>5</xsl:text>
+  </xsl:template>
+  <xsl:template mode="refresh_frequency" match="widget[@type='Input']">
+    <xsl:text>5</xsl:text>
+  </xsl:template>
 </xsl:stylesheet>

--- a/svghmi/gen_index_xhtml.ysl2	Thu Oct 10 10:03:47 2019 +0200
+++ b/svghmi/gen_index_xhtml.ysl2	Fri Oct 11 12:03:14 2019 +0200
@@ -24,7 +24,7 @@
     const "geometry", "ns:GetSVGGeometry()";
     const "hmitree", "ns:GetHMITree()";
 
-    const "hmi_elements", "//*[starts-with(@inkscape:label, 'HMI:')]";
+    const "hmi_elements", "//svg:*[starts-with(@inkscape:label, 'HMI:')]";
     const "hmi_geometry", "$geometry[@Id = $hmi_elements/@id]";
 
     const "hmi_pages", "$hmi_elements[func:parselabel(@inkscape:label)/widget/@type = 'Page']";
@@ -163,7 +163,8 @@
 
     function "scripts"
     {
-        /* TODO : paste hmitree hash stored in hmi tree root node */
+        /* paste hmitree hash stored in hmi tree root node */
+        | var hmi_hash = [«$hmitree/@hash»]; 
 
         /* TODO re-enable
         ||
@@ -183,45 +184,74 @@
         ||
         */
 
-        /*TODO add :
-          - pages content
-            + with ref to elt ?
-          - widgets parameters
-        */
-
-        | var hmi_index = {
+        | var hmi_widgets = {
+        foreach "$hmi_elements" {
+            const "widget", "func:parselabel(@inkscape:label)/widget";
+            | «@id»: {
+            |     type: "«$widget/@type»",
+            |     frequency: `apply "$widget", mode="refresh_frequency"`,
+            |     args: [
+            foreach "$widget/arg"
+            |         "«@value»"`if "position()!=last()" > ,`
+            |     ],
+            |     paths: [
+            foreach "$widget/path" {
+                const "hmipath","@value";
+                const "hmitree_match","$indexed_hmitree/*[@hmipath = $hmipath]";
+                if "count($hmitree_match) = 0"
+                    error > No match for HMI «$hmipath»;
+            |         «$hmitree_match/@index»`if "position()!=last()" > ,`
+            }
+            |     ]
+            | }`if "position()!=last()" > ,`
+        }
+        | }
+        |
+        | var hmi_index = [
 
         const "svg","/"; /* foreach loses document root */
         foreach "$indexed_hmitree/*" {
-            | «@index»: {
-            |     name: "«@name»",
-            |     hmipath: "«@hmipath»"
+            | {   /* «@index»  «@hmipath» */
+            |     type: "«local-name()»",
             |     ids: [
             const "hmipath","@hmipath";
             foreach "$svg//*[substring-after(@inkscape:label,'@') = $hmipath]" {
-            |         "«@id»"`if "position()!=last()" > ,`
+            |         hmi_widgets["«@id»"]`if "position()!=last()" > ,`
             }
             |     ]
             | }`if "position()!=last()" > ,`
         }
 
-        | }
+        | ]
         |
         | var page_desc = {
 
         foreach "$hmi_pages" {
             const "desc", "func:parselabel(@inkscape:label)/widget";
+            const "page", "."; 
+            const "p", "$hmi_geometry[@Id = $page/@id]"; 
+            const "page_ids","""$hmi_geometry[@Id != $page/@id and 
+                                @x >= $p/@x and @y >= $p/@y and 
+                                @x+@w <= $p/@x+$p/@w and @y+@h <= $p/@y+$p/@h]/@Id""";
+            const "page_elements", "$hmi_elements[@id = $page_ids]";
             |     "«$desc/arg[1]/@value»": {
             |         id: "«@id»",
             |         widgets: [
-            const "page", "."; 
-            const "p", "$hmi_geometry[@Id = $page/@id]"; 
-            foreach """$hmi_geometry[@Id != $page/@id and 
-                       @x >= $p/@x and @y >= $p/@y and 
-                       @x+@w <= $p/@x+$p/@w and @y+@h <= $p/@y+$p/@h]""" {
-                |             "«@Id»"`if "position()!=last()" > ,`
+            foreach "$page_ids" {
+            |             "«.»"`if "position()!=last()" > ,`
             }
             |         ]
+            |         subscriptions: [
+            foreach "$page_elements" {
+                const "hmipaths", "func:parselabel(@inkscape:label)/widget/path/@value";
+                const "notlast", "position()!=last()";
+                foreach "$hmipaths" {
+                    const "hmipath",".";
+            |             «$indexed_hmitree/*[@hmipath = $hmipath]/@index»`if "$notlast or position()!=last()" > ,`
+                }
+            }
+            |         ]
+            |     }`if "position()!=last()" > ,`
         }
         | }
 
@@ -291,4 +321,9 @@
             with "indent" value "concat($indent,'>')"
         };
     }
+
+    template "widget", mode="refresh_frequency" > 10
+    template "widget[@type='Meter']", mode="refresh_frequency" > 10
+    template "widget[@type='Display']", mode="refresh_frequency" > 5
+    template "widget[@type='Input']", mode="refresh_frequency" > 5
 }