egret_require.js 2.7 KB

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  1. /**
  2. * Copyright (c) 2014,Egret-Labs.org
  3. * All rights reserved.
  4. * Redistribution and use in source and binary forms, with or without
  5. * modification, are permitted provided that the following conditions are met:
  6. *
  7. * * Redistributions of source code must retain the above copyright
  8. * notice, this list of conditions and the following disclaimer.
  9. * * Redistributions in binary form must reproduce the above copyright
  10. * notice, this list of conditions and the following disclaimer in the
  11. * documentation and/or other materials provided with the distribution.
  12. * * Neither the name of the Egret-Labs.org nor the
  13. * names of its contributors may be used to endorse or promote products
  14. * derived from this software without specific prior written permission.
  15. *
  16. * THIS SOFTWARE IS PROVIDED BY EGRET-LABS.ORG AND CONTRIBUTORS "AS IS" AND ANY
  17. * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  18. * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  19. * DISCLAIMED. IN NO EVENT SHALL EGRET-LABS.ORG AND CONTRIBUTORS BE LIABLE FOR ANY
  20. * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  21. * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  22. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  23. * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  25. * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26. */
  27. egret_h5 = {};
  28. egret_h5.prefix = "";
  29. egret_h5.loadScript = function (list, callback) {
  30. var loaded = 0;
  31. var loadNext = function () {
  32. egret_h5.loadSingleScript(egret_h5.prefix + list[loaded], function () {
  33. loaded++;
  34. if (loaded >= list.length) {
  35. callback();
  36. }
  37. else {
  38. loadNext();
  39. }
  40. })
  41. };
  42. loadNext();
  43. };
  44. egret_h5.loadSingleScript = function (src, callback) {
  45. var s = document.createElement('script');
  46. if (s.hasOwnProperty("async")) {
  47. s.async = false;
  48. }
  49. s.src = src;
  50. s.addEventListener('load', function () {
  51. this.removeEventListener('load', arguments.callee, false);
  52. callback();
  53. }, false);
  54. document.body.appendChild(s);
  55. };
  56. egret_h5.preloadScript = function (list, prefix) {
  57. if (!egret_h5.preloadList) {
  58. egret_h5.preloadList = [];
  59. }
  60. egret_h5.preloadList = egret_h5.preloadList.concat(list.map(function (item) {
  61. return prefix + item;
  62. }))
  63. };
  64. egret_h5.startLoading = function () {
  65. var list = egret_h5.preloadList;
  66. egret_h5.loadScript(list, egret_h5.startGame);
  67. };