Archived:WidSets Filter test
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About this widget
This is a widget for testing filters with the HTTP service.
Xpath used in this example. Regex filters are also available.
WidSets Scripting Language code: filter_test.he
class
{
const int CMD_BACK = 1;
const int CMD_CANCEL = 2;
MenuItem BACK = new MenuItem(CMD_BACK, "Back");
MenuItem CANCEL = new MenuItem(CMD_CANCEL, "Cancel");
String URL = "http://www.deftit.com/data.xml";
Flow content;
Prompt prompt;
Component createElement(String view, String id, Style style, Object ctx)
{
if (id.equals("max")) {
content = new Flow(style);
content.setPreferredSize(-100, -100);
content.add(createLabel("Loading"));
return content;
} else {
return null;
}
}
void startWidget()
{
setMinimizedView(createMinimizedView("viewMini", getStyle("white")));
}
Shell openWidget()
{
Flow view = createMaximizedView("viewMaxi", getStyle("maxi"));
Shell shell = new Shell(view);
fetchData();
return shell;
}
Label createLabel(String text)
{
Label label = new Label(getStyle("label"), text);
label.setPreferredWidth(-100);
return label;
}
void fetchData()
{
printf("Fetching data");
call(null, "httpService" , "get", ["url" => URL], success, failure);
prompt = new Prompt(null, "Downloading...", null, CANCEL);
prompt.push();
void success(Object state, Value ret)
{
printf("ret: "+ret);
closePrompt();
content.clear();
foreach (Value item : ret) {
content.add(createLabel(String(item[1])));
}
}
void failure(Object state, String error)
{
printf("error: "+error);
closePrompt();
}
void closePrompt()
{
if (prompt != null) {
prompt.pop();
prompt = null;
}
}
}
MenuItem getSoftKey(Shell shell,
Component focused,
int key)
{
if (key == SOFTKEY_OK) {
return null;
} else if (key == SOFTKEY_BACK) {
return BACK;
}
return null;
}
void actionPerformed(Shell shell, Component source, int action)
{
switch(action)
{
case CMD_BACK:
{
content = null;
popShell(shell);
}
break;
case CMD_CANCEL:
{
if (prompt != null) {
prompt.pop();
prompt = null;
}
}
break;
}
}
}
Widget.xml
<?xml version="1.0" encoding="utf-8"?>
<widget spec_version="2.0">
<info>
<name>filter_test</name>
<version>0.1</version>
<author>render</author>
<clientversion>0.98</clientversion>
<shortdescription>Example widget demonstrating use of xpath filters</shortdescription>
<longdescription>Example widget demonstrating use of xpath filters to fetch XML data from Web page.</longdescription>
<tags>test example xpath filter</tags>
</info>
<services>
<service type="http" id="httpService">
<filter id="xpathfilter"/>
</service>
</services>
<filters>
<filter id="xpathfilter">
<list>
<foreach>
<xpath>/record/*</xpath>
<item>
<name><xpath>name()</xpath></name>
<value><xpath>text()</xpath></value>
</item>
</foreach>
</list>
</filter>
</filters>
<parameters>
<parameter name="widgetname">filter_test</parameter>
</parameters>
<resources>
<code src="filter_test.he"/>
<stylesheet>
white {
background: solid white;
}
minbg {
background: solid white;
}
titleLabel {
padding: 0 0 10 0;
font-1: small bold;
color-1: #000000;
align: hcenter vcenter;
}
maxi {
color-1: black;
background: solid white;
align: hcenter vcenter;
border: 1 1 1 1;
border-type: rectangle black;
}
label {
font-1: large;
color-1: black;
align: hcenter vcenter;
}
</stylesheet>
</resources>
<layout minimizedheight="65sp">
<view id="viewMini" class="minbg">
<label class="titleLabel">${widgetname}</label>
</view>
<view id="viewMaxi" class="maxi">
<script id="max" class="maxi"/>
</view>
<webview>
<weblabel class="top:0px;left:10px;">${widgetname}</weblabel>
</webview>
</layout>
</widget>
Note
Due to feature in Xpath-filter implementation,name()
