Update third_party/document_image_extractor

third_party/document_image_extractor/third_party/closure-library/closure/goog/events/eventtarget.js

Index: third_party/document_image_extractor/third_party/closure-library/closure/goog/events/eventtarget.js
diff --git a/third_party/document_image_extractor/third_party/closure-library/closure/goog/events/eventtarget.js b/third_party/document_image_extractor/third_party/closure-library/closure/goog/events/eventtarget.js
deleted file mode 100644
index 7408c7e09640ba54d9d639164a6de49e3c5e69d0..0000000000000000000000000000000000000000
--- a/third_party/document_image_extractor/third_party/closure-library/closure/goog/events/eventtarget.js
+++ /dev/null
@@ -1,394 +0,0 @@
-// Copyright 2005 The Closure Library Authors. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS-IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-/**
- * @fileoverview A disposable implementation of a custom
- * listenable/event target. See also: documentation for
- * {@code goog.events.Listenable}.
- *
- * @author arv@google.com (Erik Arvidsson) [Original implementation]
- * @see ../demos/eventtarget.html
- * @see goog.events.Listenable
- */
-
-goog.provide('goog.events.EventTarget');
-
-goog.require('goog.Disposable');
-goog.require('goog.asserts');
-goog.require('goog.events');
-goog.require('goog.events.Event');
-goog.require('goog.events.Listenable');
-goog.require('goog.events.ListenerMap');
-goog.require('goog.object');
-
-
-
-/**
- * An implementation of {@code goog.events.Listenable} with full W3C
- * EventTarget-like support (capture/bubble mechanism, stopping event
- * propagation, preventing default actions).
- *
- * You may subclass this class to turn your class into a Listenable.
- *
- * Unless propagation is stopped, an event dispatched by an
- * EventTarget will bubble to the parent returned by
- * {@code getParentEventTarget}. To set the parent, call
- * {@code setParentEventTarget}. Subclasses that don't support
- * changing the parent can override the setter to throw an error.
- *
- * Example usage:
- * <pre>
- *   var source = new goog.events.EventTarget();
- *   function handleEvent(e) {
- *     alert('Type: ' + e.type + '; Target: ' + e.target);
- *   }
- *   source.listen('foo', handleEvent);
- *   // Or: goog.events.listen(source, 'foo', handleEvent);
- *   ...
- *   source.dispatchEvent('foo');  // will call handleEvent
- *   ...
- *   source.unlisten('foo', handleEvent);
- *   // Or: goog.events.unlisten(source, 'foo', handleEvent);
- * </pre>
- *
- * @constructor
- * @extends {goog.Disposable}
- * @implements {goog.events.Listenable}
- */
-goog.events.EventTarget = function() {
-  goog.Disposable.call(this);
-
-  /**
-   * Maps of event type to an array of listeners.
-   * @private {!goog.events.ListenerMap}
-   */
-  this.eventTargetListeners_ = new goog.events.ListenerMap(this);
-
-  /**
-   * The object to use for event.target. Useful when mixing in an
-   * EventTarget to another object.
-   * @private {!Object}
-   */
-  this.actualEventTarget_ = this;
-
-  /**
-   * Parent event target, used during event bubbling.
-   *
-   * TODO(chrishenry): Change this to goog.events.Listenable. This
-   * currently breaks people who expect getParentEventTarget to return
-   * goog.events.EventTarget.
-   *
-   * @private {goog.events.EventTarget}
-   */
-  this.parentEventTarget_ = null;
-};
-goog.inherits(goog.events.EventTarget, goog.Disposable);
-goog.events.Listenable.addImplementation(goog.events.EventTarget);
-
-
-/**
- * An artificial cap on the number of ancestors you can have. This is mainly
- * for loop detection.
- * @const {number}
- * @private
- */
-goog.events.EventTarget.MAX_ANCESTORS_ = 1000;
-
-
-/**
- * Returns the parent of this event target to use for bubbling.
- *
- * @return {goog.events.EventTarget} The parent EventTarget or null if
- *     there is no parent.
- * @override
- */
-goog.events.EventTarget.prototype.getParentEventTarget = function() {
-  return this.parentEventTarget_;
-};
-
-
-/**
- * Sets the parent of this event target to use for capture/bubble
- * mechanism.
- * @param {goog.events.EventTarget} parent Parent listenable (null if none).
- */
-goog.events.EventTarget.prototype.setParentEventTarget = function(parent) {
-  this.parentEventTarget_ = parent;
-};
-
-
-/**
- * Adds an event listener to the event target. The same handler can only be
- * added once per the type. Even if you add the same handler multiple times
- * using the same type then it will only be called once when the event is
- * dispatched.
- *
- * @param {string} type The type of the event to listen for.
- * @param {function(?):?|{handleEvent:function(?):?}|null} handler The function
- *     to handle the event. The handler can also be an object that implements
- *     the handleEvent method which takes the event object as argument.
- * @param {boolean=} opt_capture In DOM-compliant browsers, this determines
- *     whether the listener is fired during the capture or bubble phase
- *     of the event.
- * @param {Object=} opt_handlerScope Object in whose scope to call
- *     the listener.
- * @deprecated Use {@code #listen} instead, when possible. Otherwise, use
- *     {@code goog.events.listen} if you are passing Object
- *     (instead of Function) as handler.
- */
-goog.events.EventTarget.prototype.addEventListener = function(
-    type, handler, opt_capture, opt_handlerScope) {
-  goog.events.listen(this, type, handler, opt_capture, opt_handlerScope);
-};
-
-
-/**
- * Removes an event listener from the event target. The handler must be the
- * same object as the one added. If the handler has not been added then
- * nothing is done.
- *
- * @param {string} type The type of the event to listen for.
- * @param {function(?):?|{handleEvent:function(?):?}|null} handler The function
- *     to handle the event. The handler can also be an object that implements
- *     the handleEvent method which takes the event object as argument.
- * @param {boolean=} opt_capture In DOM-compliant browsers, this determines
- *     whether the listener is fired during the capture or bubble phase
- *     of the event.
- * @param {Object=} opt_handlerScope Object in whose scope to call
- *     the listener.
- * @deprecated Use {@code #unlisten} instead, when possible. Otherwise, use
- *     {@code goog.events.unlisten} if you are passing Object
- *     (instead of Function) as handler.
- */
-goog.events.EventTarget.prototype.removeEventListener = function(
-    type, handler, opt_capture, opt_handlerScope) {
-  goog.events.unlisten(this, type, handler, opt_capture, opt_handlerScope);
-};
-
-
-/** @override */
-goog.events.EventTarget.prototype.dispatchEvent = function(e) {
-  this.assertInitialized_();
-
-  var ancestorsTree, ancestor = this.getParentEventTarget();
-  if (ancestor) {
-    ancestorsTree = [];
-    var ancestorCount = 1;
-    for (; ancestor; ancestor = ancestor.getParentEventTarget()) {
-      ancestorsTree.push(ancestor);
-      goog.asserts.assert(
-          (++ancestorCount < goog.events.EventTarget.MAX_ANCESTORS_),
-          'infinite loop');
-    }
-  }
-
-  return goog.events.EventTarget.dispatchEventInternal_(
-      this.actualEventTarget_, e, ancestorsTree);
-};
-
-
-/**
- * Removes listeners from this object.  Classes that extend EventTarget may
- * need to override this method in order to remove references to DOM Elements
- * and additional listeners.
- * @override
- */
-goog.events.EventTarget.prototype.disposeInternal = function() {
-  goog.events.EventTarget.superClass_.disposeInternal.call(this);
-
-  this.removeAllListeners();
-  this.parentEventTarget_ = null;
-};
-
-
-/** @override */
-goog.events.EventTarget.prototype.listen = function(
-    type, listener, opt_useCapture, opt_listenerScope) {
-  this.assertInitialized_();
-  return this.eventTargetListeners_.add(
-      String(type), listener, false /* callOnce */, opt_useCapture,
-      opt_listenerScope);
-};
-
-
-/** @override */
-goog.events.EventTarget.prototype.listenOnce = function(
-    type, listener, opt_useCapture, opt_listenerScope) {
-  return this.eventTargetListeners_.add(
-      String(type), listener, true /* callOnce */, opt_useCapture,
-      opt_listenerScope);
-};
-
-
-/** @override */
-goog.events.EventTarget.prototype.unlisten = function(
-    type, listener, opt_useCapture, opt_listenerScope) {
-  return this.eventTargetListeners_.remove(
-      String(type), listener, opt_useCapture, opt_listenerScope);
-};
-
-
-/** @override */
-goog.events.EventTarget.prototype.unlistenByKey = function(key) {
-  return this.eventTargetListeners_.removeByKey(key);
-};
-
-
-/** @override */
-goog.events.EventTarget.prototype.removeAllListeners = function(opt_type) {
-  // TODO(chrishenry): Previously, removeAllListeners can be called on
-  // uninitialized EventTarget, so we preserve that behavior. We
-  // should remove this when usages that rely on that fact are purged.
-  if (!this.eventTargetListeners_) {
-    return 0;
-  }
-  return this.eventTargetListeners_.removeAll(opt_type);
-};
-
-
-/** @override */
-goog.events.EventTarget.prototype.fireListeners = function(
-    type, capture, eventObject) {
-  // TODO(chrishenry): Original code avoids array creation when there
-  // is no listener, so we do the same. If this optimization turns
-  // out to be not required, we can replace this with
-  // getListeners(type, capture) instead, which is simpler.
-  var listenerArray = this.eventTargetListeners_.listeners[String(type)];
-  if (!listenerArray) {
-    return true;
-  }
-  listenerArray = listenerArray.concat();
-
-  var rv = true;
-  for (var i = 0; i < listenerArray.length; ++i) {
-    var listener = listenerArray[i];
-    // We might not have a listener if the listener was removed.
-    if (listener && !listener.removed && listener.capture == capture) {
-      var listenerFn = listener.listener;
-      var listenerHandler = listener.handler || listener.src;
-
-      if (listener.callOnce) {
-        this.unlistenByKey(listener);
-      }
-      rv = listenerFn.call(listenerHandler, eventObject) !== false && rv;
-    }
-  }
-
-  return rv && eventObject.returnValue_ != false;
-};
-
-
-/** @override */
-goog.events.EventTarget.prototype.getListeners = function(type, capture) {
-  return this.eventTargetListeners_.getListeners(String(type), capture);
-};
-
-
-/** @override */
-goog.events.EventTarget.prototype.getListener = function(
-    type, listener, capture, opt_listenerScope) {
-  return this.eventTargetListeners_.getListener(
-      String(type), listener, capture, opt_listenerScope);
-};
-
-
-/** @override */
-goog.events.EventTarget.prototype.hasListener = function(
-    opt_type, opt_capture) {
-  var id = goog.isDef(opt_type) ? String(opt_type) : undefined;
-  return this.eventTargetListeners_.hasListener(id, opt_capture);
-};
-
-
-/**
- * Sets the target to be used for {@code event.target} when firing
- * event. Mainly used for testing. For example, see
- * {@code goog.testing.events.mixinListenable}.
- * @param {!Object} target The target.
- */
-goog.events.EventTarget.prototype.setTargetForTesting = function(target) {
-  this.actualEventTarget_ = target;
-};
-
-
-/**
- * Asserts that the event target instance is initialized properly.
- * @private
- */
-goog.events.EventTarget.prototype.assertInitialized_ = function() {
-  goog.asserts.assert(
-      this.eventTargetListeners_,
-      'Event target is not initialized. Did you call the superclass ' +
-      '(goog.events.EventTarget) constructor?');
-};
-
-
-/**
- * Dispatches the given event on the ancestorsTree.
- *
- * @param {!Object} target The target to dispatch on.
- * @param {goog.events.Event|Object|string} e The event object.
- * @param {Array<goog.events.Listenable>=} opt_ancestorsTree The ancestors
- *     tree of the target, in reverse order from the closest ancestor
- *     to the root event target. May be null if the target has no ancestor.
- * @return {boolean} If anyone called preventDefault on the event object (or
- *     if any of the listeners returns false) this will also return false.
- * @private
- */
-goog.events.EventTarget.dispatchEventInternal_ = function(
-    target, e, opt_ancestorsTree) {
-  var type = e.type || /** @type {string} */ (e);
-
-  // If accepting a string or object, create a custom event object so that
-  // preventDefault and stopPropagation work with the event.
-  if (goog.isString(e)) {
-    e = new goog.events.Event(e, target);
-  } else if (!(e instanceof goog.events.Event)) {
-    var oldEvent = e;
-    e = new goog.events.Event(type, target);
-    goog.object.extend(e, oldEvent);
-  } else {
-    e.target = e.target || target;
-  }
-
-  var rv = true, currentTarget;
-
-  // Executes all capture listeners on the ancestors, if any.
-  if (opt_ancestorsTree) {
-    for (var i = opt_ancestorsTree.length - 1; !e.propagationStopped_ && i >= 0;
-         i--) {
-      currentTarget = e.currentTarget = opt_ancestorsTree[i];
-      rv = currentTarget.fireListeners(type, true, e) && rv;
-    }
-  }
-
-  // Executes capture and bubble listeners on the target.
-  if (!e.propagationStopped_) {
-    currentTarget = e.currentTarget = target;
-    rv = currentTarget.fireListeners(type, true, e) && rv;
-    if (!e.propagationStopped_) {
-      rv = currentTarget.fireListeners(type, false, e) && rv;
-    }
-  }
-
-  // Executes all bubble listeners on the ancestors, if any.
-  if (opt_ancestorsTree) {
-    for (i = 0; !e.propagationStopped_ && i < opt_ancestorsTree.length; i++) {
-      currentTarget = e.currentTarget = opt_ancestorsTree[i];
-      rv = currentTarget.fireListeners(type, false, e) && rv;
-    }
-  }
-
-  return rv;
-};