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XBL To Custom Element Converter

<?xml version="1.0"?>

<!DOCTYPE page [
<!ENTITY % extensionsDTD SYSTEM "chrome://mozapps/locale/extensions/extensions.dtd">
%extensionsDTD;
]>

<binding id="setting-base">
    <implementation>
      <constructor><![CDATA[
        this.preferenceChanged();

this.addEventListener("keypress", function(event) {
          event.stopPropagation();
        });

if (this.usePref)
          Services.prefs.addObserver(this.pref, this._observer, true);
      ]]></constructor>

<field name="_observer"><![CDATA[({
        _self: this,

QueryInterface(aIID) {
          const Ci = Components.interfaces;
          if (aIID.equals(Ci.nsIObserver) ||
              aIID.equals(Ci.nsISupportsWeakReference) ||
              aIID.equals(Ci.nsISupports))
            return this;

throw Components.Exception("No interface", Components.results.NS_ERROR_NO_INTERFACE);
        },

observe(aSubject, aTopic, aPrefName) {
          if (aTopic != "nsPref:changed")
            return;

if (this._self.pref == aPrefName)
            this._self.preferenceChanged();
        }
      })]]>
      </field>

<method name="fireEvent">
        <parameter name="eventName"/>
        <parameter name="funcStr"/>
        <body>
          <![CDATA[
            let body = funcStr || this.getAttribute(eventName);
            if (!body)
              return;

try {
              let event = document.createEvent("Events");
              event.initEvent(eventName, true, true);
              let f = new Function("event", body);
              f.call(this, event);
            } catch (e) {
              Cu.reportError(e);
            }
          ]]>
        </body>
      </method>

<field name="_updatingInput">false</field>
      <field name="input">document.getAnonymousElementByAttribute(this, "anonid", "input");</field>
      <field name="settings">
        this.parentNode.localName == "settings" ? this.parentNode : null;
      </field>
    </implementation>
  </binding>

<binding id="setting-bool" extends="chrome://mozapps/content/extensions/setting.xml#setting-base">
    <content>
      <xul:vbox>
        <xul:hbox class="preferences-alignment">
          <xul:label class="preferences-title" flex="1" xbl:inherits="xbl:text=title"/>
        </xul:hbox>
        <xul:description class="preferences-description" flex="1" xbl:inherits="xbl:text=desc"/>
        <xul:label class="preferences-learnmore text-link"
                   onclick="document.getBindingParent(this).openLearnMore()">FROM-DTD.setting.learnmore;</xul:label>
      </xul:vbox>
      <xul:hbox class="preferences-alignment">
        <xul:checkbox anonid="input" xbl:inherits="disabled,onlabel,offlabel,label=checkboxlabel" oncommand="inputChanged();"/>
      </xul:hbox>
    </content>

<implementation>
      <method name="showPicker">
        <body>
        <![CDATA[
          var filePicker = Cc["@mozilla.org/filepicker;1"].createInstance(Ci.nsIFilePicker);
          filePicker.init(window, this.getAttribute("title"),
                          this.type == "file" ? Ci.nsIFilePicker.modeOpen : Ci.nsIFilePicker.modeGetFolder);
          if (this.value) {
            try {
              let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
              file.initWithPath(this.value);
              filePicker.displayDirectory = this.type == "file" ? file.parent : file;
              if (this.type == "file") {
                filePicker.defaultString = file.leafName;
              }
            } catch (e) {}
          }
          filePicker.open(rv => {
            if (rv != Ci.nsIFilePicker.returnCancel && filePicker.file) {
              this.value = filePicker.file.path;
              this.inputChanged();
            }
          });
        ]]>
        </body>
      </method>

<method name="valueFromPreference">
        <body>
        <![CDATA[
          let val = Preferences.get(this.pref, "").toString();

if ("itemCount" in this.control) {
            for (let i = 0; i < this.control.itemCount; i++) {
              if (this.control.getItemAtIndex(i).value == val) {
                this.control.selectedIndex = i;
                break;
              }
            }
          } else {
            this.control.setAttribute("value", val);
          }
        ]]>
        </body>
      </method>

<field name="control">this.getElementsByTagName(this.getAttribute("type") == "radio" ? "radiogroup" : "menulist")[0];</field>
    </implementation>
  </binding>
</bindings>