gecko-dev/widget/tests/utils.js

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JavaScript
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function getTestPlugin(pluginName) {
var ph = SpecialPowers.Cc["@mozilla.org/plugin/host;1"].getService(
SpecialPowers.Ci.nsIPluginHost
);
var tags = ph.getPluginTags();
var name = pluginName || "Test Plug-in";
for (var tag of tags) {
if (tag.name == name) {
return tag;
}
}
ok(false, "Could not find plugin tag with plugin name '" + name + "'");
return null;
}
// call this to set the test plugin(s) initially expected enabled state.
// it will automatically be reset to it's previous value after the test
// ends
function setTestPluginEnabledState(newEnabledState, pluginName) {
var plugin = getTestPlugin(pluginName);
var oldEnabledState = plugin.enabledState;
plugin.enabledState = newEnabledState;
SimpleTest.registerCleanupFunction(function() {
getTestPlugin(pluginName).enabledState = oldEnabledState;
});
}