| <!DOCTYPE html> |
| <!-- |
| Copyright (c) 2015 The Chromium Authors. All rights reserved. |
| Use of this source code is governed by a BSD-style license that can be |
| found in the LICENSE file. |
| --> |
| |
| <link rel="import" href="/base/rect.html"> |
| |
| <script> |
| 'use strict'; |
| |
| tr.exportTo('tr.ui.b', function() { |
| function instantiateTemplate(selector, doc) { |
| doc = doc || document; |
| var el = doc.querySelector(selector); |
| if (!el) |
| throw new Error('Element not found'); |
| return el.createInstance(); |
| } |
| |
| function windowRectForElement(element) { |
| var position = [element.offsetLeft, element.offsetTop]; |
| var size = [element.offsetWidth, element.offsetHeight]; |
| var node = element.offsetParent; |
| while (node) { |
| position[0] += node.offsetLeft; |
| position[1] += node.offsetTop; |
| node = node.offsetParent; |
| } |
| return tr.b.Rect.fromXYWH(position[0], position[1], size[0], size[1]); |
| } |
| |
| function scrollIntoViewIfNeeded(el) { |
| var pr = el.parentElement.getBoundingClientRect(); |
| var cr = el.getBoundingClientRect(); |
| if (cr.top < pr.top) { |
| el.scrollIntoView(true); |
| } else if (cr.bottom > pr.bottom) { |
| el.scrollIntoView(false); |
| } |
| } |
| |
| return { |
| instantiateTemplate: instantiateTemplate, |
| windowRectForElement: windowRectForElement, |
| scrollIntoViewIfNeeded: scrollIntoViewIfNeeded |
| }; |
| }); |
| </script> |
