| // 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.AnchoredPosition'); |
| |
| goog.require('goog.positioning'); |
| goog.require('goog.positioning.AbstractPosition'); |
| |
| |
| |
| /** |
| * Encapsulates a popup position where the popup is anchored at a corner of |
| * an element. |
| * |
| * When using AnchoredPosition, it is recommended that the popup element |
| * specified in the Popup constructor or Popup.setElement be absolutely |
| * positioned. |
| * |
| * @param {Element} anchorElement Element the movable element should be |
| * anchored against. |
| * @param {goog.positioning.Corner} corner Corner of anchored element the |
| * movable element should be positioned at. |
| * @param {number=} opt_overflow Overflow handling mode. Defaults to IGNORE if |
| * not specified. Bitmap, {@see goog.positioning.Overflow}. |
| * @constructor |
| * @extends {goog.positioning.AbstractPosition} |
| */ |
| goog.positioning.AnchoredPosition = function(anchorElement, |
| corner, |
| opt_overflow) { |
| /** |
| * Element the movable element should be anchored against. |
| * @type {Element} |
| */ |
| this.element = anchorElement; |
| |
| /** |
| * Corner of anchored element the movable element should be positioned at. |
| * @type {goog.positioning.Corner} |
| */ |
| this.corner = corner; |
| |
| /** |
| * Overflow handling mode. Defaults to IGNORE if not specified. |
| * Bitmap, {@see goog.positioning.Overflow}. |
| * @type {number|undefined} |
| * @private |
| */ |
| this.overflow_ = opt_overflow; |
| }; |
| goog.inherits(goog.positioning.AnchoredPosition, |
| goog.positioning.AbstractPosition); |
| |
| |
| /** |
| * Repositions the movable element. |
| * |
| * @param {Element} movableElement Element to position. |
| * @param {goog.positioning.Corner} movableCorner Corner of the movable element |
| * that should be positioned adjacent to the anchored element. |
| * @param {goog.math.Box=} opt_margin A margin specifin pixels. |
| * @param {goog.math.Size=} opt_preferredSize PreferredSize of the |
| * movableElement (unused in this class). |
| * @override |
| */ |
| goog.positioning.AnchoredPosition.prototype.reposition = function( |
| movableElement, movableCorner, opt_margin, opt_preferredSize) { |
| goog.positioning.positionAtAnchor(this.element, |
| this.corner, |
| movableElement, |
| movableCorner, |
| undefined, |
| opt_margin, |
| this.overflow_); |
| }; |