Add TypeScript declarations to iron-dropdown. (#150)

* Generate minimal package.json from bower.json
* Update and/or configure type declarations.
* Add manual declaration for deprecated IronDropdownScrollManager.

.gitignore

@@ -1,2 +1,3 @@
 bower_components*
 bower-*.json
+node_modules

.travis.yml

@@ -3,6 +3,10 @@ sudo: required
 before_script:
   - npm install -g polymer-cli
   - polymer install --variants
+  - >-
+    npm run update-types && git diff --exit-code || (echo -e
+    '\n\033[31mERROR:\033[0m Typings are stale. Please run "npm run
+    update-types".' && false)
 env:
   global:
     - secure: >-

gen-tsd.json

@@ -0,0 +1,7 @@
+{
+  "addReferences": {
+    "iron-dropdown-scroll-manager.d.ts": [
+      "iron-dropdown-scroll-manager-extra.d.ts"
+    ]
+  }
+}

iron-dropdown-scroll-manager-extra.d.ts

@@ -0,0 +1,6 @@
+declare namespace Polymer {
+  /**
+   * IronDropdownScrollManager is deprecated, use IronScrollManager instead.
+   */
+  const IronDropdownScrollManager: typeof Polymer.IronScrollManager;
+}

iron-dropdown-scroll-manager.d.ts

@@ -0,0 +1,13 @@
+/**
+ * DO NOT EDIT
+ *
+ * This file was automatically generated by
+ *   https://github.com/Polymer/gen-typescript-declarations
+ *
+ * To modify these typings, edit the source file(s):
+ *   iron-dropdown-scroll-manager.html
+ */
+
+/// <reference path="../iron-overlay-behavior/iron-scroll-manager.d.ts" />
+/// <reference path="iron-dropdown-scroll-manager-extra.d.ts" />
+

iron-dropdown.d.ts

@@ -0,0 +1,152 @@
+/**
+ * DO NOT EDIT
+ *
+ * This file was automatically generated by
+ *   https://github.com/Polymer/gen-typescript-declarations
+ *
+ * To modify these typings, edit the source file(s):
+ *   iron-dropdown.html
+ */
+
+/// <reference path="../polymer/types/polymer.d.ts" />
+/// <reference path="../iron-behaviors/iron-control-state.d.ts" />
+/// <reference path="../iron-overlay-behavior/iron-overlay-behavior.d.ts" />
+/// <reference path="../neon-animation/neon-animation-runner-behavior.d.ts" />
+/// <reference path="iron-dropdown-scroll-manager.d.ts" />
+
+/**
+ * `<iron-dropdown>` is a generalized element that is useful when you have
+ * hidden content (`dropdown-content`) that is revealed due to some change in
+ * state that should cause it to do so.
+ *
+ * Note that this is a low-level element intended to be used as part of other
+ * composite elements that cause dropdowns to be revealed.
+ *
+ * Examples of elements that might be implemented using an `iron-dropdown`
+ * include comboboxes, menubuttons, selects. The list goes on.
+ *
+ * The `<iron-dropdown>` element exposes attributes that allow the position
+ * of the `dropdown-content` relative to the `dropdown-trigger` to be
+ * configured.
+ *
+ *     <iron-dropdown horizontal-align="right" vertical-align="top">
+ *       <div slot="dropdown-content">Hello!</div>
+ *     </iron-dropdown>
+ *
+ * In the above example, the `<div>` assigned to the `dropdown-content` slot will be
+ * hidden until the dropdown element has `opened` set to true, or when the `open`
+ * method is called on the element.
+ */
+interface IronDropdownElement extends Polymer.Element, Polymer.IronControlState, Polymer.IronA11yKeysBehavior, Polymer.IronOverlayBehavior, Polymer.NeonAnimationRunnerBehavior {
+
+  /**
+   * The orientation against which to align the dropdown content
+   * horizontally relative to the dropdown trigger.
+   * Overridden from `Polymer.IronFitBehavior`.
+   */
+  horizontalAlign: string|null|undefined;
+
+  /**
+   * The orientation against which to align the dropdown content
+   * vertically relative to the dropdown trigger.
+   * Overridden from `Polymer.IronFitBehavior`.
+   */
+  verticalAlign: string|null|undefined;
+
+  /**
+   * An animation config. If provided, this will be used to animate the
+   * opening of the dropdown. Pass an Array for multiple animations.
+   * See `neon-animation` documentation for more animation configuration
+   * details.
+   */
+  openAnimationConfig: object|null|undefined;
+
+  /**
+   * An animation config. If provided, this will be used to animate the
+   * closing of the dropdown. Pass an Array for multiple animations.
+   * See `neon-animation` documentation for more animation configuration
+   * details.
+   */
+  closeAnimationConfig: object|null|undefined;
+
+  /**
+   * If provided, this will be the element that will be focused when
+   * the dropdown opens.
+   */
+  focusTarget: object|null|undefined;
+
+  /**
+   * Set to true to disable animations when opening and closing the
+   * dropdown.
+   */
+  noAnimations: boolean|null|undefined;
+
+  /**
+   * By default, the dropdown will constrain scrolling on the page
+   * to itself when opened.
+   * Set to true in order to prevent scroll from being constrained
+   * to the dropdown when it opens.
+   * This property is a shortcut to set `scrollAction` to lock or refit.
+   * Prefer directly setting the `scrollAction` property.
+   */
+  allowOutsideScroll: boolean|null|undefined;
+
+  /**
+   * The element that is contained by the dropdown, if any.
+   */
+  containedElement: object|null;
+  ready(): any;
+  attached(): any;
+  detached(): any;
+
+  /**
+   * Called when the value of `opened` changes.
+   * Overridden from `IronOverlayBehavior`
+   */
+  _openedChanged(): any;
+
+  /**
+   * Overridden from `IronOverlayBehavior`.
+   */
+  _renderOpened(): any;
+
+  /**
+   * Overridden from `IronOverlayBehavior`.
+   */
+  _renderClosed(): any;
+
+  /**
+   * Apply focus to focusTarget or containedElement
+   */
+  _applyFocus(): any;
+
+  /**
+   * Called when animation finishes on the dropdown (when opening or
+   * closing). Responsible for "completing" the process of opening or
+   * closing the dropdown by positioning it or setting its display to
+   * none.
+   */
+  _onNeonAnimationFinish(): any;
+
+  /**
+   * Constructs the final animation config from different properties used
+   * to configure specific parts of the opening and closing animations.
+   */
+  _updateAnimationConfig(): any;
+
+  /**
+   * Updates the overlay position based on configured horizontal
+   * and vertical alignment.
+   */
+  _updateOverlayPosition(): any;
+
+  /**
+   * Sets scrollAction according to the value of allowOutsideScroll.
+   * Prefer setting directly scrollAction.
+   */
+  _allowOutsideScrollChanged(allowOutsideScroll: any): any;
+}
+
+interface HTMLElementTagNameMap {
+  "iron-dropdown": IronDropdownElement;
+}