| // Copyright 2006 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 Client positioning class. |
| * |
| * @author eae@google.com (Emil A Eklund) |
| */ |
| |
| goog.provide('goog.positioning.ViewportPosition'); |
| |
| goog.require('goog.math.Coordinate'); |
| goog.require('goog.positioning'); |
| goog.require('goog.positioning.AbstractPosition'); |
| goog.require('goog.positioning.Corner'); |
| goog.require('goog.style'); |
| |
| |
| |
| /** |
| * Encapsulates a popup position where the popup is positioned according to |
| * coordinates relative to the element's viewport (page). This calculates the |
| * correct position to use even if the element is relatively positioned to some |
| * other element. |
| * |
| * @param {number|goog.math.Coordinate} arg1 Left position or coordinate. |
| * @param {number=} opt_arg2 Top position. |
| * @constructor |
| * @extends {goog.positioning.AbstractPosition} |
| */ |
| goog.positioning.ViewportPosition = function(arg1, opt_arg2) { |
| this.coordinate = arg1 instanceof goog.math.Coordinate ? arg1 : |
| new goog.math.Coordinate(/** @type {number} */ (arg1), opt_arg2); |
| }; |
| goog.inherits(goog.positioning.ViewportPosition, |
| goog.positioning.AbstractPosition); |
| |
| |
| /** |
| * Repositions the popup according to the current state |
| * |
| * @param {Element} element The DOM element of the popup. |
| * @param {goog.positioning.Corner} popupCorner The corner of the popup |
| * element that that should be positioned adjacent to the anchorElement. |
| * @param {goog.math.Box=} opt_margin A margin specified in pixels. |
| * @param {goog.math.Size=} opt_preferredSize Preferred size of the element. |
| * @override |
| */ |
| goog.positioning.ViewportPosition.prototype.reposition = function( |
| element, popupCorner, opt_margin, opt_preferredSize) { |
| goog.positioning.positionAtAnchor( |
| goog.style.getClientViewportElement(element), |
| goog.positioning.Corner.TOP_LEFT, element, popupCorner, |
| this.coordinate, opt_margin, null, opt_preferredSize); |
| }; |