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Suspended promise tree (#209)
* Refactored chart rendering using "suspended promise tree" approach * Promise thunk refactoring * View thunk refactoring * Object block loading fixed * Fixed query view mode * Fixed view navigation * ldh:view-object-metadata-thunk
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-230
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6 files changed

+539
-230
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‎src/main/webapp/static/com/atomgraph/linkeddatahub/xsl/bootstrap/2.3.2/client/block.xsl‎

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@@ -120,6 +120,8 @@ exclude-result-prefixes="#all"
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<xsl:template match="*" mode="ldh:RenderRow">
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<xsl:apply-templates mode="#current"/>
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</xsl:template>
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<xsl:template match="text()" mode="ldh:RenderRow"/>
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<!-- hide type control -->
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<xsl:template match="*[rdf:type/@rdf:resource = '&ldh;XHTML']" mode="bs2:TypeControl" priority="1">
@@ -318,6 +320,46 @@ exclude-result-prefixes="#all"
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<!-- CALLBACKS -->
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<xsl:function name="ldh:load-block" ixsl:updating="yes" as="map(*)">
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<xsl:param name="context" as="map(*)"/>
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<xsl:param name="self-thunk" as="function(map(*)) as item()*"/>
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<xsl:param name="child-thunk" as="function(map(*)) as item()*?"/>
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<xsl:param name="ignored" as="item()?"/>
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<xsl:sequence select="
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ixsl:all-settled(
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array{
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$self-thunk($context),
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if ($child-thunk) then $child-thunk($context) else ()
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}
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)
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=> ixsl:then(
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ldh:hide-block-progress-bar(
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$context,
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?
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)
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)
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"/>
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</xsl:function>
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<xsl:function name="ldh:hide-block-progress-bar" as="map(*)" ixsl:updating="yes">
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<xsl:param name="context" as="map(*)"/>
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<xsl:param name="results" as="array(*)"/>
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<xsl:variable name="container" select="$context('container')" as="element()"/>
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<xsl:message>ldh:hide-block-progress-bar $container/@typeof: <xsl:value-of select="$container/@typeof"/></xsl:message>
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<!-- hide the progress bar -->
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<xsl:for-each select="$container/ancestor::div[contains-token(@class, 'span12')][contains-token(@class, 'progress')][contains-token(@class, 'active')]">
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<xsl:sequence select="ixsl:call(ixsl:get(., 'classList'), 'toggle', [ 'progress', false() ])[current-date() lt xs:date('2000-01-01')]"/>
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<xsl:sequence select="ixsl:call(ixsl:get(., 'classList'), 'toggle', [ 'progress-striped', false() ])[current-date() lt xs:date('2000-01-01')]"/>
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<xsl:sequence select="ixsl:call(ixsl:get(., 'classList'), 'toggle', [ 'active', false() ])[current-date() lt xs:date('2000-01-01')]"/>
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</xsl:for-each>
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<xsl:sequence select="$context"/>
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</xsl:function>
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<!-- block delete -->
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<xsl:template name="onBlockDelete">

‎src/main/webapp/static/com/atomgraph/linkeddatahub/xsl/bootstrap/2.3.2/client/block/chart.xsl‎

Lines changed: 103 additions & 45 deletions
Original file line numberDiff line numberDiff line change
@@ -203,7 +203,8 @@ exclude-result-prefixes="#all"
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</xsl:template>
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<!-- render chart block -->
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<xsl:template match="*[@typeof = ('&ldh;ResultSetChart', '&ldh;GraphChart')][descendant::*[@property = '&spin;query'][@resource]][descendant::*[@property = '&ldh;chartType'][@resource]]" mode="ldh:RenderRow" priority="2"> <!-- prioritize above block.xsl -->
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<xsl:template match="*[@typeof = ('&ldh;ResultSetChart', '&ldh;GraphChart')][descendant::*[@property = '&spin;query'][@resource]][descendant::*[@property = '&ldh;chartType'][@resource]]" mode="ldh:RenderRow" as="function(item()?) as map(*)" priority="2"> <!-- prioritize above block.xsl -->
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<xsl:param name="block" select="ancestor-or-self::div[contains-token(@class, 'block')][1]" as="element()"/>
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<xsl:param name="about" select="$block/@about" as="xs:anyURI"/>
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<xsl:param name="container" select="." as="element()"/>
@@ -240,6 +241,97 @@ exclude-result-prefixes="#all"
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<ixsl:set-style name="width" select="'66%'" object="."/>
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</xsl:for-each>
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<xsl:variable name="child-thunk" as="function(map(*)) as item()*?">
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<xsl:apply-templates mode="#current"/>
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</xsl:variable>
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<xsl:variable name="request-uri" select="ldh:href($ldt:base, ac:absolute-path(ldh:base-uri(.)), map{}, $query-uri)" as="xs:anyURI"/>
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<xsl:variable name="request" select="map{ 'method': 'GET', 'href': $request-uri, 'headers': map{ 'Accept': 'application/rdf+xml' } }" as="map(*)"/>
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<xsl:variable name="context" as="map(*)" select="
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map{
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'request': $request,
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'this': $about,
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'block': $block,
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'container': $container,
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'container-id': $container-id,
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'method': $method,
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'action': $action,
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'accept-charset': $accept-charset,
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'enctype': $enctype,
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'chart-type-id': $chart-type-id,
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'category-id': $category-id,
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'series-id': $series-id,
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'query-uri': $query-uri,
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'chart-type': $chart-type,
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'category': $category,
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'series': $series,
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'canvas-id': $canvas-id,
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'canvas-class': $canvas-class,
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'form-actions': $form-actions
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}"/>
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<xsl:sequence select="
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ldh:load-block#4(
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$context,
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ldh:chart-self-thunk#1,
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$child-thunk,
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?
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)
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"/>
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</xsl:template>
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<!-- this is the one thunk you hand to load-block#4 -->
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<xsl:function name="ldh:chart-self-thunk" as="item()*" ixsl:updating="yes">
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<xsl:param name="context" as="map(*)"/>
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<xsl:message>ldh:chart-self-thunk</xsl:message>
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<xsl:sequence select="
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ixsl:resolve($context) =>
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ixsl:then(ldh:render-chart#1) =>
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ixsl:then(ldh:chart-query-thunk#1) =>
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ixsl:then(ldh:chart-results-thunk#1)
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"/>
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</xsl:function>
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<!-- only the first HTTP → query‐response lives here -->
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<xsl:function name="ldh:chart-query-thunk" as="item()*" ixsl:updating="yes">
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<xsl:param name="context" as="map(*)"/>
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<xsl:message>ldh:chart-query-thunk</xsl:message>
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<xsl:sequence select="
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ixsl:http-request($context('request')) =>
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ixsl:then(ldh:rethread-response($context, ?)) =>
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ixsl:then(ldh:handle-response#1) =>
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ixsl:then(ldh:chart-query-response#1)
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"/>
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</xsl:function>
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<xsl:function name="ldh:chart-results-thunk" as="item()*" ixsl:updating="yes">
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<xsl:param name="context" as="map(*)"/>
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<xsl:message>ldh:chart-results-thunk</xsl:message>
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<xsl:sequence select="
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ixsl:http-request($context('request')) =>
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ixsl:then(ldh:rethread-response($context, ?)) =>
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ixsl:then(ldh:handle-response#1) =>
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ixsl:then(ldh:chart-results-response#1)
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"/>
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</xsl:function>
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<xsl:function name="ldh:render-chart" ixsl:updating="yes">
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<xsl:param name="context" as="map(*)"/>
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<xsl:variable name="container" select="$context('container')" as="element()"/>
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<xsl:variable name="method" select="$context('method')" as="xs:string"/>
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<xsl:variable name="action" select="$context('action')" as="xs:anyURI"/>
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<xsl:variable name="accept-charset" select="$context('accept-charset')" as="xs:string?"/>
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<xsl:variable name="enctype" select="$context('enctype')" as="xs:string?"/>
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<xsl:variable name="chart-type-id" select="$context('chart-type-id')" as="xs:string"/>
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<xsl:variable name="category-id" select="$context('category-id')" as="xs:string"/>
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<xsl:variable name="series-id" select="$context('series-id')" as="xs:string"/>
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<xsl:variable name="chart-type" select="$context('chart-type')" as="xs:anyURI?"/>
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<xsl:variable name="canvas-id" select="$context('canvas-id')" as="xs:string?"/>
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<xsl:variable name="canvas-class" select="$context('canvas-class')" as="xs:string?"/>
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<xsl:variable name="form-actions" select="$context('form-actions')" as="element()?"/>
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<xsl:message>ldh:render-chart</xsl:message>
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<xsl:for-each select="$container//div[contains-token(@class, 'main')]">
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<xsl:variable name="header" select="./div/div[@class = 'well']" as="element()"/>
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@@ -325,28 +417,9 @@ exclude-result-prefixes="#all"
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</form>
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</xsl:result-document>
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</xsl:for-each>
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<xsl:variable name="request-uri" select="ldh:href($ldt:base, ac:absolute-path(ldh:base-uri(.)), map{}, $query-uri)" as="xs:anyURI"/>
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<xsl:variable name="request" select="map{ 'method': 'GET', 'href': $request-uri, 'headers': map{ 'Accept': 'application/rdf+xml' } }" as="map(*)"/>
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<xsl:variable name="context" as="map(*)" select="
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map{
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'request': $request,
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'this': $about,
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'block': $block,
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'container': $container,
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'container-id': $container-id,
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'query-uri': $query-uri,
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'chart-type': $chart-type,
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'category': $category,
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'series': $series,
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'canvas-id': $canvas-id
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}"/>
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<ixsl:promise select="ixsl:http-request($context('request')) =>
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ixsl:then(ldh:rethread-response($context, ?)) =>
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ixsl:then(ldh:handle-response#1) =>
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ixsl:then(ldh:chart-query-response#1)"
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on-failure="ldh:promise-failure#1"/>
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</xsl:template>
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<xsl:sequence select="$context"/>
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</xsl:function>
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<!-- EVENT LISTENERS -->
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@@ -576,6 +649,8 @@ exclude-result-prefixes="#all"
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<xsl:variable name="series" select="$context('series')" as="xs:string*"/>
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<xsl:variable name="canvas-id" select="$context('canvas-id')" as="xs:string"/>
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<xsl:message>ldh:chart-query-response</xsl:message>
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<xsl:for-each select="$response">
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<xsl:variable name="response" select="." as="map(*)"/>
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<xsl:choose>
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</xsl:for-each>
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<xsl:variable name="request" select="map{ 'method': 'GET', 'href': $request-uri, 'headers': map{ 'Accept': 'application/sparql-results+xml,application/rdf+xml;q=0.9' } }" as="map(*)"/>
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<xsl:variable name="context" as="map(*)" select="
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<xsl:sequence select="
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map{
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'request': $request,
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'endpoint': $endpoint,
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'show-chart-save': false(),
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'results-container-id': $container-id || '-query-results'
615690
}"/>
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<ixsl:promise select="ixsl:http-request($context('request')) =>
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ixsl:then(ldh:rethread-response($context, ?)) =>
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ixsl:then(ldh:handle-response#1) =>
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ixsl:then(ldh:chart-results-response#1)"
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on-failure="ldh:promise-failure#1"/>
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</xsl:for-each>
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</xsl:when>
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<xsl:otherwise>
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</div>
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</xsl:result-document>
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</xsl:for-each>
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<xsl:sequence select="$context"/>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:for-each>
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<xsl:sequence select="$context"/>
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</xsl:function>
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<!-- SPARQL results response -->
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<xsl:variable name="show-chart-save" select="$context('show-chart-save')" as="xs:boolean"/>
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<xsl:variable name="results-container-id" select="$context('results-container-id')" as="xs:string"/>
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<xsl:message>ldh:chart-results-response</xsl:message>
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<xsl:for-each select="$response">
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<ixsl:set-style name="cursor" select="'default'" object="ixsl:page()//body"/>
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<xsl:with-param name="category" select="$category"/>
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<xsl:with-param name="series" select="$series"/>
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</xsl:call-template>
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<!-- hide the progress bar - either of this block (if it contains a progress bar) or of the parent block -->
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<xsl:for-each select="($block//div[contains-token(@class, 'span12')][contains-token(@class, 'progress')][contains-token(@class, 'active')], $block/ancestor::div[contains-token(@class, 'block')]//div[contains-token(@class, 'span12')][contains-token(@class, 'progress')][contains-token(@class, 'active')])[1]">
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<xsl:sequence select="ixsl:call(ixsl:get(., 'classList'), 'toggle', [ 'progress', false() ])[current-date() lt xs:date('2000-01-01')]"/>
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<xsl:sequence select="ixsl:call(ixsl:get(., 'classList'), 'toggle', [ 'progress-striped', false() ])[current-date() lt xs:date('2000-01-01')]"/>
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<xsl:sequence select="ixsl:call(ixsl:get(., 'classList'), 'toggle', [ 'active', false() ])[current-date() lt xs:date('2000-01-01')]"/>
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</xsl:for-each>
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</xsl:for-each>
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</xsl:when>
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<xsl:otherwise>
707-
<!-- hide the progress bar - either of this block (if it contains a progress bar) or of the parent block -->
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<xsl:for-each select="($block//div[contains-token(@class, 'span12')][contains-token(@class, 'progress')][contains-token(@class, 'active')], $block/ancestor::div[contains-token(@class, 'block')]//div[contains-token(@class, 'span12')][contains-token(@class, 'progress')][contains-token(@class, 'active')])[1]">
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<xsl:sequence select="ixsl:call(ixsl:get(., 'classList'), 'toggle', [ 'progress', false() ])[current-date() lt xs:date('2000-01-01')]"/>
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<xsl:sequence select="ixsl:call(ixsl:get(., 'classList'), 'toggle', [ 'progress-striped', false() ])[current-date() lt xs:date('2000-01-01')]"/>
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<xsl:sequence select="ixsl:call(ixsl:get(., 'classList'), 'toggle', [ 'active', false() ])[current-date() lt xs:date('2000-01-01')]"/>
712-
</xsl:for-each>
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714772
<!-- error response - could not load query results -->
715773
<xsl:for-each select="$container">
716774
<xsl:result-document href="?." method="ixsl:replace-content">

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