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Diffstat (limited to 'systrace/catapult/third_party/polymer/components/iron-resizable-behavior/iron-resizable-behavior.html')
-rw-r--r-- | systrace/catapult/third_party/polymer/components/iron-resizable-behavior/iron-resizable-behavior.html | 195 |
1 files changed, 0 insertions, 195 deletions
diff --git a/systrace/catapult/third_party/polymer/components/iron-resizable-behavior/iron-resizable-behavior.html b/systrace/catapult/third_party/polymer/components/iron-resizable-behavior/iron-resizable-behavior.html deleted file mode 100644 index 42b6556..0000000 --- a/systrace/catapult/third_party/polymer/components/iron-resizable-behavior/iron-resizable-behavior.html +++ /dev/null @@ -1,195 +0,0 @@ -<!-- -@license -Copyright (c) 2015 The Polymer Project Authors. All rights reserved. -This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt -The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt -The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt -Code distributed by Google as part of the polymer project is also -subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt ---> - -<link rel="import" href="../polymer/polymer.html"> - -<script> - /** - * `IronResizableBehavior` is a behavior that can be used in Polymer elements to - * coordinate the flow of resize events between "resizers" (elements that control the - * size or hidden state of their children) and "resizables" (elements that need to be - * notified when they are resized or un-hidden by their parents in order to take - * action on their new measurements). - * - * Elements that perform measurement should add the `IronResizableBehavior` behavior to - * their element definition and listen for the `iron-resize` event on themselves. - * This event will be fired when they become showing after having been hidden, - * when they are resized explicitly by another resizable, or when the window has been - * resized. - * - * Note, the `iron-resize` event is non-bubbling. - * - * @polymerBehavior Polymer.IronResizableBehavior - * @demo demo/index.html - **/ - Polymer.IronResizableBehavior = { - properties: { - /** - * The closest ancestor element that implements `IronResizableBehavior`. - */ - _parentResizable: { - type: Object, - observer: '_parentResizableChanged' - }, - - /** - * True if this element is currently notifying its descendant elements of - * resize. - */ - _notifyingDescendant: { - type: Boolean, - value: false - } - }, - - listeners: { - 'iron-request-resize-notifications': '_onIronRequestResizeNotifications' - }, - - created: function() { - // We don't really need property effects on these, and also we want them - // to be created before the `_parentResizable` observer fires: - this._interestedResizables = []; - this._boundNotifyResize = this.notifyResize.bind(this); - }, - - attached: function() { - this.fire('iron-request-resize-notifications', null, { - node: this, - bubbles: true, - cancelable: true - }); - - if (!this._parentResizable) { - window.addEventListener('resize', this._boundNotifyResize); - this.notifyResize(); - } - }, - - detached: function() { - if (this._parentResizable) { - this._parentResizable.stopResizeNotificationsFor(this); - } else { - window.removeEventListener('resize', this._boundNotifyResize); - } - - this._parentResizable = null; - }, - - /** - * Can be called to manually notify a resizable and its descendant - * resizables of a resize change. - */ - notifyResize: function() { - if (!this.isAttached) { - return; - } - - this._interestedResizables.forEach(function(resizable) { - if (this.resizerShouldNotify(resizable)) { - this._notifyDescendant(resizable); - } - }, this); - - this._fireResize(); - }, - - /** - * Used to assign the closest resizable ancestor to this resizable - * if the ancestor detects a request for notifications. - */ - assignParentResizable: function(parentResizable) { - this._parentResizable = parentResizable; - }, - - /** - * Used to remove a resizable descendant from the list of descendants - * that should be notified of a resize change. - */ - stopResizeNotificationsFor: function(target) { - var index = this._interestedResizables.indexOf(target); - - if (index > -1) { - this._interestedResizables.splice(index, 1); - this.unlisten(target, 'iron-resize', '_onDescendantIronResize'); - } - }, - - /** - * This method can be overridden to filter nested elements that should or - * should not be notified by the current element. Return true if an element - * should be notified, or false if it should not be notified. - * - * @param {HTMLElement} element A candidate descendant element that - * implements `IronResizableBehavior`. - * @return {boolean} True if the `element` should be notified of resize. - */ - resizerShouldNotify: function(element) { return true; }, - - _onDescendantIronResize: function(event) { - if (this._notifyingDescendant) { - event.stopPropagation(); - return; - } - - // NOTE(cdata): In ShadowDOM, event retargeting makes echoing of the - // otherwise non-bubbling event "just work." We do it manually here for - // the case where Polymer is not using shadow roots for whatever reason: - if (!Polymer.Settings.useShadow) { - this._fireResize(); - } - }, - - _fireResize: function() { - this.fire('iron-resize', null, { - node: this, - bubbles: false - }); - }, - - _onIronRequestResizeNotifications: function(event) { - var target = event.path ? event.path[0] : event.target; - - if (target === this) { - return; - } - - if (this._interestedResizables.indexOf(target) === -1) { - this._interestedResizables.push(target); - this.listen(target, 'iron-resize', '_onDescendantIronResize'); - } - - target.assignParentResizable(this); - this._notifyDescendant(target); - - event.stopPropagation(); - }, - - _parentResizableChanged: function(parentResizable) { - if (parentResizable) { - window.removeEventListener('resize', this._boundNotifyResize); - } - }, - - _notifyDescendant: function(descendant) { - // NOTE(cdata): In IE10, attached is fired on children first, so it's - // important not to notify them if the parent is not attached yet (or - // else they will get redundantly notified when the parent attaches). - if (!this.isAttached) { - return; - } - - this._notifyingDescendant = true; - descendant.notifyResize(); - this._notifyingDescendant = false; - } - }; -</script> - |