{"id":467,"date":"2015-08-16T14:03:48","date_gmt":"2015-08-16T05:03:48","guid":{"rendered":"http:\/\/ik1-306-13392.vs.sakura.ne.jp\/?p=467"},"modified":"2015-08-16T14:04:27","modified_gmt":"2015-08-16T05:04:27","slug":"post-467","status":"publish","type":"post","link":"https:\/\/nobunobu1717.site\/?p=467","title":{"rendered":"HTML5\u3068JavaScript\u3067\u30b5\u30a6\u30f3\u30c9\u30ce\u30d9\u30eb\u3092\u4f5c\u308b(TypeScript\u4f7f\u7528) \u305d\u306e4 \u753b\u50cf\u8868\u793a"},"content":{"rendered":"<div id=\"toc_container\" class=\"no_bullets\"><p class=\"toc_title\">Contents<\/p><ul class=\"toc_list\"><li><a href=\"#i\"><span class=\"toc_number toc_depth_1\">1<\/span> \u6982\u8981<\/a><\/li><li><a href=\"#i-2\"><span class=\"toc_number toc_depth_1\">2<\/span> \u4eca\u56de\u3084\u308a\u305f\u3044\u3053\u3068<\/a><\/li><li><a href=\"#i-3\"><span class=\"toc_number toc_depth_1\">3<\/span> \u5b9f\u73fe\u65b9\u6cd5<\/a><\/li><li><a href=\"#Typescript\"><span class=\"toc_number toc_depth_1\">4<\/span> Typescript\u5b9f\u88c5<\/a><\/li><li><a href=\"#i-4\"><span class=\"toc_number toc_depth_1\">5<\/span> \u6700\u5f8c\u306b<\/a><\/li><\/ul><\/div>\n<h2><span id=\"i\">\u6982\u8981<\/span><\/h2>\n<p><a href=\"http:\/\/168.138.214.208\/?p=453\" target=\"_blank\">\u524d\u56de<\/a>\u306f\u30da\u30fc\u30b8\u623b\u3057\u3084\u9001\u308a\u306e\u6a5f\u80fd\u3092\u5b9f\u88c5\u3057\u307e\u3057\u305f\u3002<br \/>\n\u6587\u7ae0\u8868\u793a\u95a2\u9023\u306e\u51e6\u7406\u306f\u4e00\u65e6\u6b62\u3081\u3066\u6b21\u306f\u753b\u9762\u8868\u793a\u3092\u5b9f\u88c5\u3057\u3066\u898b\u307e\u3059\u3002<\/p>\n<h2><span id=\"i-2\">\u4eca\u56de\u3084\u308a\u305f\u3044\u3053\u3068<\/span><\/h2>\n<p>\u6587\u7ae0\u306e\u80cc\u666f\u306b\u753b\u50cf\u3092\u8868\u793a\u3055\u305b\u307e\u3059\u3002<br \/>\n\u4efb\u610f\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u80cc\u666f\u3092\u5909\u3048\u3089\u308c\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<h2><span id=\"i-3\">\u5b9f\u73fe\u65b9\u6cd5<\/span><\/h2>\n<p>\u753b\u50cf\u3092\u63cf\u753b\u3059\u308b\u65b9\u6cd5\u3068\u3057\u3066\u3001Canvas\u4e0a\u306b\u753b\u50cf\u63cf\u753b\u3092\u884c\u3046\u6a5f\u80fd\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u305d\u308c\u3092\u7528\u3044\u307e\u3059\u3002<br \/>\n\u305f\u3060\u3057\u3001Canvas\u306e\u6a5f\u80fd\u306f\u7279\u5b9a\u306e\u63cf\u753b\u6e08\u307f\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3060\u3051\u3092\u6d88\u3059\u3068\u3044\u3063\u305f\u6a5f\u80fd\u306f\u3042\u308a\u307e\u305b\u3093\u3002<br \/>\n\u305d\u306e\u305f\u3081\u3001\u65e2\u306b\u6587\u7ae0\u3092\u63cf\u753b\u6e08\u307f\u5834\u5408\u306b\u80cc\u666f\u3092\u5909\u66f4\u3059\u308b\u3068\u518d\u5ea6\u6587\u7ae0\u3082\u542b\u3081\u3066\u63cf\u753b\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u975e\u5e38\u306b\u9762\u5012\u304f\u3055\u304f\u306a\u308a\u307e\u3059\u3002<br \/>\n\u305d\u3053\u3067\u3001\u73fe\u5728\u306f\u5229\u7528\u3057\u3066\u3044\u308b\u6587\u7ae0\u8868\u793a\u3059\u308bCanvas\u3068\u306f\u5225\u306eCanvas\u3092\u7528\u610f\u3057\u3066\u8907\u6570\u306eCanvas\u3092\u91cd\u306d\u308b\u3053\u3068\u3067\u5b9f\u73fe\u3057\u307e\u3059\u3002<br \/>\n\u4eca\u56de\u306f\u5177\u4f53\u7684\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30ec\u30a4\u30e4\u30fc\u69cb\u9020\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n<p><a href=\"http:\/\/168.138.214.208\/wp-content\/uploads\/2015\/08\/layler.png\"><img class=\" size-medium wp-image-477 aligncenter\" src=\"http:\/\/168.138.214.208\/wp-content\/uploads\/2015\/08\/layler-300x164.png\" alt=\"layler\" width=\"300\" height=\"164\" srcset=\"https:\/\/nobunobu1717.site\/wp-content\/uploads\/2015\/08\/layler-300x164.png 300w, https:\/\/nobunobu1717.site\/wp-content\/uploads\/2015\/08\/layler.png 650w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>\u80cc\u666f\u753b\u50cf\u8868\u793aCanvas:<br \/>\n\u80cc\u666f\u753b\u50cf\u3092\u8868\u793a\u3059\u308bCanvas\u3067\u3059\u3002\u3053\u306e\u30ec\u30a4\u30e4\u30fc\u3092\u4e00\u756a\u6700\u4e0b\u5c64\u306b\u3057\u307e\u3059\u3002<br \/>\n\u30d5\u30a3\u30eb\u30bf\u30fcCanvas:<br \/>\n\u753b\u9762\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u8868\u793a\u3059\u308bCanvas\u3067\u3059\u3002\u3053\u306e\u30d5\u30a3\u30eb\u30bf\u30fc\u306e\u76ee\u7684\u306f\u6587\u7ae0\u3092\u8aad\u307f\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u3067\u3059\u3002\u80cc\u666f\u753b\u50cf\u306e\u4e0b\u306b\u305d\u306e\u307e\u307e\u6587\u7ae0\u3092\u8868\u793a\u3059\u308b\u3068\u898b\u3065\u3089\u304f\u306a\u308b\u305f\u3081\u3001\u753b\u9762\u306b\u5bfe\u3057\u3066\u4e00\u5b9a\u306e\u6697\u3055\u3092\u52a0\u3048\u308b\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u7528\u610f\u3059\u308b\u3053\u3068\u3067\u6587\u7ae0\u3092\u898b\u3084\u3059\u304f\u3057\u307e\u3059\u3002<br \/>\n\u6587\u7ae0\u8868\u793aCanvas:<br \/>\n\u3053\u308c\u306f\u524d\u56de\u307e\u3067\u306b\u4f5c\u6210\u3057\u305f\u6587\u7ae0\u8868\u793a\u3092\u884c\u3046Canvas\u3067\u3059\u3002<br \/>\n\u30ed\u30fc\u30c9\u4e2d\u30a2\u30a4\u30b3\u30f3\u8868\u793aDiv:<br \/>\n\u3053\u308c\u306fCanvas\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u753b\u50cf\u306e\u30ed\u30fc\u30c9\u4e2d\u306b\u30ed\u30fc\u30c9\u4e2d\u306e\u30a2\u30a4\u30b3\u30f3\u3092\u8868\u793a\u3055\u305b\u308b\u305f\u3081\u306eDiv\u30bf\u30b0\u3068\u3057\u3066\u8981\u3057\u307e\u3059\u3002\u3053\u306e\u30bf\u30b0\u306e\u4e2d\u306bimg\u30bf\u30b0\u3067gif\u30a2\u30a4\u30b3\u30f3\u3092\u5165\u308c\u308b\u3053\u3068\u3067\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002(Canvas\u30bf\u30b0\u3067\u306fgif\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306f\u518d\u73fe\u3055\u308c\u306a\u3044\u305f\u3081img\u30bf\u30b0\u3092\u76f4\u63a5\u63cf\u753b\u53ef\u80fd\u306adiv\u30bf\u30b0\u3092\u7528\u610f\u3057\u307e\u3059\u3002)<br \/>\n\u6700\u4e0b\u5c64\u306e\u80cc\u666f\u8868\u793acanvas\u4ee5\u5916\u306f\u80cc\u666f\u3092\u900f\u904e\u3055\u305b\u308b\u3053\u3068\u3067\u8907\u6570\u306e\u30ec\u30a4\u30e4\u30fc\u3092\u91cd\u306d\u3066\u3082\u4e0b\u306e\u30ec\u30a4\u30e4\u30fc\u306e\u5185\u5bb9\u304c\u898b\u3048\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<br \/>\n\u5177\u4f53\u7684\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306aHTML\u3092\u7528\u610f\u3059\u308b\u3053\u3068\u3067\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\" title=\"\u30ec\u30a4\u30e4\u30fc\">    &lt;div id=\"loading\" width=\"500\" height=\"500\" style=\"background-color: transparent;position: absolute; z-index: 3;\"&gt;&lt;\/div&gt;\r\n    &lt;canvas id=\"sentenceCanvas\" width=\"500\" height=\"500\" style=\"background-color: transparent;position: absolute; z-index: 2;\"&gt;&lt;\/canvas&gt;\r\n    &lt;canvas id=\"filterCanvas\" width=\"500\" height=\"500\" style=\"background-color: transparent;position: absolute; z-index: 1;\"&gt;&lt;\/canvas&gt;\r\n    &lt;canvas id=\"backgroundCanvas\" width=\"500\" height=\"500\" style=\"position: absolute; z-index: 0;\"&gt;&lt;\/canvas&gt;<\/pre>\n<p>style\u306e\u6307\u5b9a\u3067\u8a2d\u5b9a\u3092\u884c\u3044\u307e\u3059\u3002<br \/>\n\u30fb\u80cc\u666f\u8272\u306btransparent(\u900f\u660e)\u306b\u3059\u308b\u3053\u3068\u3067\u900f\u904e\u3055\u305b\u307e\u3059\u3002<br \/>\n\u30fbz-index: \u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u968e\u5c64\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u6570\u304c\u5c11\u306a\u3044\u307b\u3069\u3001\u4e0b\u306e\u968e\u5c64\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\n\u30fbposition: absolute\u3067\u5168\u3066\u306eCanvas\u304c\u91cd\u306a\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<h2><span id=\"Typescript\">Typescript\u5b9f\u88c5<\/span><\/h2>\n<p>\u6b21\u306b\u5b9f\u969b\u306e\u30ed\u30b8\u30c3\u30af\u3092\u8003\u3048\u307e\u3059\u3002<\/p>\n<h3>\u753b\u50cf\u8aad\u307f\u8fbc\u307f<\/h3>\n<p>\u307e\u305a\u306f\u753b\u50cf\u306e\u8aad\u307f\u8fbc\u307f\u65b9\u6cd5\u306b\u95a2\u3057\u3066\u8003\u3048\u307e\u3059\u3002<br \/>\n\u753b\u50cf\u3092\u8aad\u307f\u8fbc\u3080\u51e6\u7406\u3068\u3057\u3066\u306fimage\u30af\u30e9\u30b9\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u53ef\u80fd\u3067\u3059\u304c\u3001\u8aad\u307f\u8fbc\u307f\u51e6\u7406\u81ea\u4f53\u306f\u975e\u540c\u671f\u51e6\u7406\u306b\u306a\u308a\u3001\u8aad\u307f\u8fbc\u307f\u304c\u5b8c\u4e86\u3059\u308b\u3068onload\u30a4\u30d9\u30f3\u30c8\u304c\u547c\u3073\u51fa\u3055\u308c\u308b\u3068\u3044\u3063\u305f\u5f62\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\n<a href=\"http:\/\/javascriptist.net\/ref\/image.onload.html\" target=\"_blank\">&lt;\u53c2\u8003&gt;<\/a><br \/>\n\u753b\u50cf\u8868\u793a\u306e\u5ea6\u306b\u3053\u306e\u3088\u3046\u306a\u975e\u540c\u671f\u306e\u8aad\u307f\u8fbc\u307f\u51e6\u7406\u3092\u5b9f\u884c\u3057\u3066\u3044\u308b\u3068\u30ec\u30b9\u30dd\u30f3\u30b9\u304c\u60aa\u3044\u305f\u3081\u3001\u3042\u3089\u304b\u3058\u3081\u8868\u793a\u3059\u308b\u753b\u50cf\u3092\u5168\u3066\u8aad\u307f\u8fbc\u3093\u3067\u304a\u304d\u307e\u3059\u3002<br \/>\n\u5177\u4f53\u7684\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306aNovelImageDisplay\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true \">class NovelImageDisplay {\r\n    \/\/\u30ad\u30e3\u30f3\u30d0\u30b9\r\n    private canvas: HTMLCanvasElement;\r\n    private canvas2D: CanvasRenderingContext2D;\r\n    \/\/\u30ed\u30fc\u30c9\u6e08\u307f\u30a4\u30e1\u30fc\u30b8\r\n    private loadedImages: { [key: string]: HTMLImageElement; } = {};\r\n\r\n    constructor(canvas: HTMLCanvasElement, callBack) {\r\n\r\n        this.canvas = canvas;\r\n        this.canvas2D = canvas.getContext(\"2d\");\r\n\r\n    }\r\n\r\n    \/\/\u30ed\u30fc\u30c9\u6e08\u307f\u753b\u50cf\u3092\u8868\u793a\u3057\u307e\u3059\r\n    public showLoadedImage(image: string) {\r\n\r\n        if (this.loadedImages[image]) {\r\n            var img = this.loadedImages[image];\r\n            this.canvas2D.drawImage(this.loadedImages[image], 0, 0);\r\n        }\r\n\r\n    } \r\n\r\n\r\n    \/\/\u753b\u50cf\u3092\u30ed\u30fc\u30c9\u3057\u307e\u3059\r\n    public loadImages(images: string[], callback) {\r\n\r\n        \/\/\u5168\u3066\u306e\u753b\u50cf\u3092\u8aad\u307f\u8fbc\u3093\u3060\u3089\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u8fd4\u3059\r\n        this.preLoadImage(images, () =&gt; {\r\n            callback();\r\n        });\r\n\r\n    }\r\n\r\n    \/\/\u753b\u50cf\u3092\u4e8b\u524d\u306b\u5168\u3066\u8aad\u307f\u8fbc\u307f\u307e\u3059\r\n    private preLoadImage(images : string[], callback){\r\n\r\n        var remaining = images.length;\r\n        for (var i in images) {\r\n\r\n            this.loadedImages[images[i]] = new Image();\r\n            this.loadedImages[images[i]].src = images[i];\r\n            this.loadedImages[images[i]].onload = (() =&gt; {\r\n                \/\/\u5168\u3066\u306e\u753b\u50cf\u3092\u8aad\u307f\u7d42\u308f\u3063\u305f\u3089\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\r\n                --remaining;\r\n                if (remaining == 0) {\r\n                    callback();\r\n                }\r\n            })\r\n\r\n        }\r\n    }\r\n\r\n}<\/pre>\n<p>loadImages\u30e1\u30bd\u30c3\u30c9\u3067\u8aad\u307f\u8fbc\u307f\u3092\u884c\u3044\u305f\u3044\u753b\u50cf\u4e00\u89a7\u3092\u914d\u5217\u3067\u6e21\u3057\u3001\u975e\u540c\u671f\u3067\u8aad\u307f\u8fbc\u307f\u3092\u884c\u3044\u307e\u3059\u3002<br \/>\n\u5168\u3066\u306e\u8aad\u307f\u8fbc\u307f\u304c\u5b8c\u4e86\u3059\u308b\u3068\u3001\u5f15\u6570\u3067\u6e21\u3055\u308c\u305f\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u547c\u3073\u51fa\u3057\u3066\u51e6\u7406\u304c\u5b8c\u4e86\u3057\u305f\u3053\u3068\u3092\u901a\u77e5\u3057\u307e\u3059\u3002<br \/>\n\u8aad\u307f\u8fbc\u307f\u304c\u7d42\u308f\u3063\u305f\u753b\u50cf\u306f\u9023\u60f3\u914d\u5217\u3067\u3042\u308bloadedImages\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u753b\u50cf\u540d\u3092Key\u3068\u3057\u3066\u683c\u7d0d\u3057\u3066\u304a\u304d\u3001<br \/>\nshowLoadedImage\u30e1\u30bd\u30c3\u30c9\u3067\u8868\u793a\u4f9d\u983c\u304c\u884c\u308f\u308c\u305f\u969b\u306b\u5f15\u304d\u5f53\u3066\u3092\u884c\u3044\u3001\u63cf\u753b\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<h3>\u30c7\u30d5\u30a9\u30eb\u30c8\u753b\u50cf\u3068\u8aad\u307f\u8fbc\u307f\u4e2d\u30a2\u30a4\u30b3\u30f3<\/h3>\n<p>\u6b21\u306b\u3053\u306e\u30af\u30e9\u30b9\u306b\u753b\u50cf\u3092\u672a\u8aad\u307f\u8fbc\u307f\u6642\u306b\u8868\u793a\u3059\u308b\u30c7\u30d5\u30a9\u30eb\u30c8\u753b\u50cf\u3068\u753b\u50cf\u306e\u8aad\u307f\u8fbc\u307f\u4e2d\u306b\u8868\u793a\u3059\u308b\u30a2\u30a4\u30b3\u30f3\u3092\u8868\u793a\u3055\u305b\u308b\u51e6\u7406\u3092\u8ffd\u52a0\u3057\u307e\u3057\u3087\u3046\u3002<br \/>\n\u4ee5\u4e0b\u306b\u51e6\u7406\u3092\u8ffd\u52a0\u3057\u305f\u30b3\u30fc\u30c9\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true \" >\r\nclass NovelImageDisplay {\r\n    \/\/\u30ad\u30e3\u30f3\u30d0\u30b9\r\n    private canvas: HTMLCanvasElement;\r\n    private canvas2D: CanvasRenderingContext2D;\r\n    \/\/\u30ed\u30fc\u30c9\u4e2d\u306e\u30a2\u30a4\u30b3\u30f3\u8868\u793a\r\n    private loading: HTMLDivElement;\r\n    \/\/\u30ed\u30fc\u30c9\u6e08\u307f\u30a4\u30e1\u30fc\u30b8\r\n    private loadedImages: { [key: string]: HTMLImageElement; } = {};\r\n    \/\/\u30c7\u30d5\u30a9\u30eb\u30c8\u30a4\u30e1\u30fc\u30b8\r\n    private defaultImageName: string = \"Image\/nonImage.jpg\";\r\n    private defaultImage: HTMLImageElement;\r\n    \/\/\u753b\u50cf\u30ed\u30fc\u30c9\u4e2d\u306e\u30a4\u30e1\u30fc\u30b8\r\n    private loadingImageName: string = \"Image\/loading.gif\";\r\n    private loadingImage: HTMLImageElement;\r\n\r\n    constructor(canvas: HTMLCanvasElement, loading: HTMLDivElement, callBack) {\r\n\r\n        this.canvas = canvas;\r\n        this.canvas2D = canvas.getContext(\"2d\");\r\n\r\n        this.loading = loading;\r\n\r\n        \/\/\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u9ed2\u80cc\u666f\u3068\u30a2\u30a4\u30b3\u30f3\u3092\u8aad\u307f\u8fbc\u307f\r\n        this.loadDefaultImages(() =&gt; {\r\n            \/\/\u8aad\u307f\u8fbc\u307f\u304c\u5b8c\u4e86\u3057\u305f\u3089\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u8fd4\u3059\r\n            callBack();\r\n        });\r\n    }\r\n\r\n    \/\/\u30ed\u30fc\u30c9\u6e08\u307f\u753b\u50cf\u3092\u8868\u793a\u3057\u307e\u3059\r\n    public showLoadedImage(image: string) {\r\n\r\n        if (this.loadedImages[image]) {\r\n            var img = this.loadedImages[image];\r\n            this.canvas2D.drawImage(this.loadedImages[image], 0, 0);\r\n        }\r\n\r\n    } \r\n\r\n\r\n    \/\/\u753b\u50cf\u3092\u30ed\u30fc\u30c9\u3057\u307e\u3059\r\n    public loadImages(images: string[], callback) {\r\n\r\n        this.showLoadingIcon();\r\n        \/\/\u5168\u3066\u306e\u753b\u50cf\u3092\u8aad\u307f\u8fbc\u3093\u3060\u3089\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u8fd4\u3059\r\n        this.preLoadImage(images, () =&gt; {\r\n            this.hideLoadingIcon();\r\n            callback();\r\n        });\r\n\r\n    }\r\n\r\n    \/\/\u753b\u50cf\u3092\u4e8b\u524d\u306b\u5168\u3066\u8aad\u307f\u8fbc\u307f\u307e\u3059\r\n    private preLoadImage(images : string[], callback){\r\n\r\n        var remaining = images.length;\r\n        for (var i in images) {\r\n\r\n            this.loadedImages[images[i]] = new Image();\r\n            this.loadedImages[images[i]].src = images[i];\r\n            this.loadedImages[images[i]].onload = (() =&gt; {\r\n                \/\/\u5168\u3066\u306e\u753b\u50cf\u3092\u8aad\u307f\u7d42\u308f\u3063\u305f\u3089\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\r\n                --remaining;\r\n                if (remaining == 0) {\r\n                    callback();\r\n                }\r\n            })\r\n\r\n        }\r\n    }\r\n    \/\/\u30c7\u30d5\u30a9\u30eb\u30c8\u753b\u50cf\u3092\u8aad\u307f\u8fbc\u307f\u307e\u3059\r\n    private loadDefaultImages(callback) {\r\n\r\n        this.defaultImage = new Image();\r\n        this.defaultImage.src = this.defaultImageName;\r\n        this.loadingImage = new Image();\r\n        this.loadingImage.src = this.loadingImageName;\r\n\r\n        this.defaultImage.onload = (() =&gt; {\r\n            \/\/\u63cf\u753b\r\n            this.canvas2D.drawImage(this.defaultImage, 0, 0);\r\n            this.loadingImage.onload = (() =&gt; {\r\n                callback();\r\n            });\r\n        });\r\n    }\r\n\r\n    \/\/\u30ed\u30fc\u30c9\u4e2d\u30a2\u30a4\u30b3\u30f3\u3092\u8868\u793a\u3057\u307e\u3059\r\n    private showLoadingIcon() {\r\n        this.loading.innerHTML = this.loadingImage.outerHTML;\r\n    }\r\n    \/\/\u30ed\u30fc\u30c9\u4e2d\u30a2\u30a4\u30b3\u30f3\u3092\u6d88\u53bb\u3057\u307e\u3059\r\n    private hideLoadingIcon() {\r\n        this.loading.innerHTML = \"\";\r\n    }\r\n\r\n} <\/pre>\n<p>\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306b\u524d\u8ff0\u306e\u30ec\u30a4\u30e4\u3067\u8aac\u660e\u3057\u305fdiv\u30bf\u30b0\u3092\u6e21\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n\u307e\u305f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u753b\u50cf\u3092\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u8aad\u307f\u8fbc\u307f\u3092\u884c\u3046\u51e6\u7406\u3092\u8ffd\u52a0\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n\u6b21\u306bshowLoadingIcon\u3068hideLoadingIcon\u30e1\u30bd\u30c3\u30c9\u3092\u7528\u610f\u3057\u3066div\u30bf\u30b0\u5185\u306b\u753b\u50cf\u3092\u8ffd\u52a0\/\u524a\u9664\u3059\u308b\u51e6\u7406\u3092\u547c\u3073\u51fa\u3057\u3066\u8ffd\u52a0\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u753b\u50cf\u8aad\u307f\u8fbc\u307f\u306e\u958b\u59cb\u3068\u7d42\u4e86\u306b\u5b9f\u884c\u3059\u308b\u3053\u3068\u3067\u8aad\u307f\u8fbc\u307f\u4e2d\u306b\u753b\u50cf\u3092\u8868\u793a\u3055\u305b\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n<h2><span id=\"i-4\">\u6700\u5f8c\u306b<\/span><\/h2>\n<p>\u5c11\u3057\u9577\u304f\u306a\u3063\u3066\u3057\u307e\u3063\u305f\u306e\u3067\u3053\u3053\u3067\u4e00\u65e6\u533a\u5207\u308a\u307e\u3059\u3002<br \/>\n\u6b21\u56de\u306f\u6587\u7ae0\u8868\u793a\u3068\u306e\u7d71\u5408\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<br \/>\n\u30b5\u30f3\u30d7\u30eb\u306f\u6b21\u56de\u306b\u516c\u958b\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Contents1 \u6982\u89812 \u4eca\u56de\u3084\u308a\u305f\u3044\u3053\u30683 \u5b9f\u73fe\u65b9\u6cd54 Typescript\u5b9f\u88c55 \u6700\u5f8c\u306b \u6982\u8981 \u524d\u56de\u306f\u30da\u30fc\u30b8\u623b\u3057\u3084\u9001\u308a\u306e\u6a5f\u80fd\u3092\u5b9f\u88c5\u3057\u307e\u3057\u305f\u3002 \u6587\u7ae0\u8868\u793a\u95a2\u9023\u306e\u51e6\u7406\u306f\u4e00\u65e6\u6b62\u3081\u3066\u6b21\u306f\u753b\u9762\u8868\u793a\u3092\u5b9f\u88c5\u3057\u3066 &#8230; <\/p>\n","protected":false},"author":1,"featured_media":477,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[6,16],"tags":[],"_links":{"self":[{"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=\/wp\/v2\/posts\/467"}],"collection":[{"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=467"}],"version-history":[{"count":1,"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=\/wp\/v2\/posts\/467\/revisions"}],"predecessor-version":[{"id":478,"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=\/wp\/v2\/posts\/467\/revisions\/478"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=\/wp\/v2\/media\/477"}],"wp:attachment":[{"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=467"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=467"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nobunobu1717.site\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=467"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}