color.js
上传用户:kimgenplus
上传日期:2016-06-05
资源大小:20877k
文件大小:1k
- /*
- Copyright (c) 2004-2006, The Dojo Foundation
- All Rights Reserved.
- Licensed under the Academic Free License version 2.1 or above OR the
- modified BSD license. For more information on Dojo licensing, see:
- http://dojotoolkit.org/community/licensing.shtml
- */
- dojo.require("dojo.html.style");
- dojo.provide("dojo.html.color");
- dojo.require("dojo.gfx.color");
- dojo.require("dojo.lang.common");
- dojo.html.getBackgroundColor = function (node) {
- node = dojo.byId(node);
- var color;
- do {
- color = dojo.html.getStyle(node, "background-color");
- if (color.toLowerCase() == "rgba(0, 0, 0, 0)") {
- color = "transparent";
- }
- if (node == document.getElementsByTagName("body")[0]) {
- node = null;
- break;
- }
- node = node.parentNode;
- } while (node && dojo.lang.inArray(["transparent", ""], color));
- if (color == "transparent") {
- color = [255, 255, 255, 0];
- } else {
- color = dojo.gfx.color.extractRGB(color);
- }
- return color;
- };