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138 lines
5.3 KiB
138 lines
5.3 KiB
<!-- |
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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 "../../../../dojo/resources/dojo.css"; |
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@import "../../../../dijit/themes/soria/soria.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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overflow: hidden; |
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} |
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</style> |
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<script type="text/javascript" src="../../../../dojo/dojo.js" data-dojo-config="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.BorderContainer"); |
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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="soria"> |
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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.BorderContainer" |
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gutters="true" |
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design="sidebar" |
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class="splitView"> |
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<div dojoType="dijit.layout.ContentPane" region="left" style="width: 50%; overflow: auto;"> |
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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" data-dojo-id="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" data-dojo-id="inputField" value="*" intermediateChanges="true"></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" region="right" style="width: 50%; overflow: auto;"> |
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<div class="dataTable" dojoType="dojox.wire.demos.TableContainer" data-dojo-id="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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data-dojo-id="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="onChange" |
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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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