93 lines
3.2 KiB
JavaScript
93 lines
3.2 KiB
JavaScript
// Copyright 2006 The Closure Library Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS-IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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/**
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* @fileoverview Client positioning class.
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*
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*/
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goog.provide('goog.positioning.AnchoredPosition');
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goog.require('goog.math.Box');
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goog.require('goog.positioning');
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goog.require('goog.positioning.AbstractPosition');
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/**
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* Encapsulates a popup position where the popup is anchored at a corner of
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* an element.
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*
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* When using AnchoredPosition, it is recommended that the popup element
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* specified in the Popup constructor or Popup.setElement be absolutely
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* positioned.
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*
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* @param {Element} anchorElement Element the movable element should be
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* anchored against.
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* @param {goog.positioning.Corner} corner Corner of anchored element the
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* movable element should be positioned at.
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* @param {number=} opt_overflow Overflow handling mode. Defaults to IGNORE if
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* not specified. Bitmap, {@see goog.positioning.Overflow}.
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* @constructor
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* @extends {goog.positioning.AbstractPosition}
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*/
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goog.positioning.AnchoredPosition = function(anchorElement,
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corner,
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opt_overflow) {
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/**
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* Element the movable element should be anchored against.
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* @type {Element}
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*/
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this.element = anchorElement;
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/**
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* Corner of anchored element the movable element should be positioned at.
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* @type {goog.positioning.Corner}
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*/
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this.corner = corner;
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/**
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* Overflow handling mode. Defaults to IGNORE if not specified.
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* Bitmap, {@see goog.positioning.Overflow}.
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* @type {number|undefined}
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* @private
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*/
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this.overflow_ = opt_overflow;
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};
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goog.inherits(goog.positioning.AnchoredPosition,
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goog.positioning.AbstractPosition);
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/**
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* Repositions the movable element.
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*
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* @param {Element} movableElement Element to position.
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* @param {goog.positioning.Corner} movableCorner Corner of the movable element
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* that should be positioned adjacent to the anchored element.
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* @param {goog.math.Box=} opt_margin A margin specifin pixels.
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* @param {goog.math.Size=} opt_preferredSize PreferredSize of the
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* movableElement (unused in this class).
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* @override
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*/
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goog.positioning.AnchoredPosition.prototype.reposition = function(
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movableElement, movableCorner, opt_margin, opt_preferredSize) {
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goog.positioning.positionAtAnchor(this.element,
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this.corner,
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movableElement,
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movableCorner,
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undefined,
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opt_margin,
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this.overflow_);
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};
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