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This file demonstrates how the dojox.wire code can be used to do declarative
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wiring of events on one item to trigger event on other widgets. It also shows
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how you can use the Transfer object to morph data values from one format to
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another. In this specific case, it maps the values from a dojo.data Datastore
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item into values stored in a JavaScript Array, which is the format required for
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the addRow method of the demonstration TableContainer.
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Note that this demo expects dojo, digit, and dojox to all be peers in the same directory
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in order for it to execute.
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-->
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<html>
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<head>
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<title>Sample declarative data binding</title>
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<style type="text/css">
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@import "../../../../dijit/themes/tundra/tundra.css";
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@import "../../../../dojo/resources/dojo.css";
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@import "../../../../dijit/tests/css/dijitTests.css";
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@import "../TableContainer.css";
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.splitView {
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width: 90%;
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height: 90%;
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border: 1px solid #bfbfbf;
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border-collapse: separate;
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}
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</style>
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<script type="text/javascript" src="../../../../dojo/dojo.js" djConfig="isDebug: true, parseOnLoad: true"></script>
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<script type="text/javascript">
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dojo.require("dojo.parser");
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dojo.require("dojox.wire.ml.Invocation");
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dojo.require("dojox.wire.ml.DataStore");
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dojo.require("dojox.wire.ml.Transfer");
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dojo.require("dijit.layout.SplitContainer");
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dojo.require("dijit.layout.LayoutContainer");
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dojo.require("dijit.layout.ContentPane");
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dojo.require("dijit.form.Button");
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dojo.require("dijit.form.TextBox");
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dojo.require("dojo.data.ItemFileReadStore");
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dojo.require("dojox.wire");
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dojo.require("dojox.wire.demos.TableContainer");
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//Toplevel JS Object to contain a few basics for us, such as the request to pass to the store and a stub onItem function
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// to trap on for triggering other events.
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dataHolder = {
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//Simple object definition to get all items and sort it by the attribute 'type'.
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request: {query: {name: "*"}, onItem: function(item, req){}, sort: [{attribute: "type"}]},
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//Spot to store off data values as they're generated by the declarative binding.
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result: null
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};
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</script>
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</head>
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<body class="tundra">
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<!-- The following is the basic layout. A split container with a button and a text field. Data will be displayed on the right. -->
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<div dojoType="dijit.layout.SplitContainer"
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orientation="horizontal"
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sizerWidth="7"
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activeSizing="true"
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class="splitView">
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<div dojoType="dijit.layout.ContentPane" sizeMin="50" sizeShare="50">
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<font size="3"><b>Demo Searcher (Searches on Attribute 'name'):</b></font><br/><br/>
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<b>Usage:</b><br/>
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Enter the name you want to search the store for. Wildcards * (multiple character), and ? (single character), are allowed.
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<br/>
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<br/>
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<table style="width: 90%;">
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<tr>
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<td align="left">
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<div dojoType="dijit.form.Button" jsId="searchButton">Search Datastore</div>
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</td>
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<td align="right">
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<div dojoType="dijit.form.TextBox" jsId="inputField" value="*"></div>
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</td>
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</tr>
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</table>
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</div>
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<div dojoType="dijit.layout.ContentPane" sizeMin="50" sizeShare="50">
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<div class="dataTable" dojoType="dojox.wire.demos.TableContainer" jsId="dataTable" headers="Name,Location Type"></div>
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</div>
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</div>
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<!-------------------------------- Using dojox.wire, declaratively wire up the widgets. --------------------------->
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<!-- The store that is queried in this demo -->
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<div dojoType="dojo.data.ItemFileReadStore"
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jsId="DataStore1"
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url="countries.json">
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</div>
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<!--
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When the search button is clicked, clear existing rows from table,
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Then invoke the fetch to repopulate the table.
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-->
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<div dojoType="dojox.wire.ml.Action"
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trigger="searchButton"
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triggerEvent="onClick">
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<div dojoType="dojox.wire.ml.Invocation" object="dataTable" method="clearTable"></div>
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<div dojoType="dojox.wire.ml.Invocation" object="DataStore1" method="fetch" parameters="dataHolder.request"></div>
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</div>
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<!--
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Link existing of the text box to transfering the search string to the query param.
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We are wiring the value of TextBox value of the widget to the name property of our request
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object. The copy of values to the search should occur on each keyup event (each keypress)
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-->
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<div dojoType="dojox.wire.ml.Transfer"
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trigger="inputField" triggerEvent="onkeyup"
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source="inputField.textbox.value"
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target="dataHolder.request.query.name">
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</div>
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<!--
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On the call of the onItem function of 'dataHolder', trigger a binding/mapping of the
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item's attribute 'name' and 'type' attributes to specific columns in an array. Note here that since
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sourceStore is set, it treats the arguments as items from that store and accesses the attributes
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appropriately. In this case 'name' becomes array entry 0, type, array entry 1, and so on.
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Then take the result of the data mapping and pass it into the invoke of the addRow function on the
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TableContainer widget.
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-->
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<div dojoType="dojox.wire.ml.Action"
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trigger="dataHolder.request" triggerEvent="onItem">
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<div dojoType="dojox.wire.ml.Transfer"
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source="arguments[0]" sourceStore="DataStore1"
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target="dataHolder.result">
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<div dojoType="dojox.wire.ml.ColumnWire" attribute="name"></div>
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<div dojoType="dojox.wire.ml.ColumnWire" attribute="type"></div>
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</div>
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<div dojoType="dojox.wire.ml.Invocation"
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object="dataTable" method="addRow" parameters='dataHolder.result'>
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</div>
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</div>
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</body>
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</html>
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