util.js

// util.js v3.4.0

(function() {
	var api = pzpr.env.API,
		eventMouseDown = ["mousedown"],
		eventMouseMove = ["mousemove"],
		eventMouseUp = ["mouseup"],
		eventMouseCancel = [""];

	if (pzpr.env.bz.AndroidBrowser) {
		eventMouseDown = [""];
		eventMouseMove = [""];
		eventMouseUp = [""];
	}

	if (api.pointerevent) {
		eventMouseDown = ["pointerdown"];
		eventMouseMove = ["pointermove"];
		eventMouseUp = ["pointerup"];
		eventMouseCancel = ["pointercancel"];
	} else if (api.mspointerevent) {
		eventMouseDown = ["MSPointerDown"];
		eventMouseMove = ["MSPointerMove"];
		eventMouseUp = ["MSPointerUp"];
		eventMouseCancel = ["MSPointerCancel"];
	} else if (api.touchevent) {
		eventMouseDown.push("touchstart");
		eventMouseMove.push("touchmove");
		eventMouseUp.push("touchend");
		eventMouseCancel.push("touchcancel");
	}

	//----------------------------------------------------------------------
	// EventやDOM関連のツール的関数群
	//----------------------------------------------------------------------
	pzpr.util = {
		//---------------------------------------------------------------
		// pzpr.jsが読み込まれているスクリプトのパスを取得する
		getpath: function() {
			if (pzpr.env.browser) {
				var srcs = document.getElementsByTagName("script");
				for (var i = 0; i < srcs.length; i++) {
					var result = srcs[i].src.match(/^(.*\/)pzpr\.js(?:\?.*)?$/);
					if (result) {
						return result[1] + (!result[1].match(/\/$/) ? "/" : "");
					}
				}
			} else {
				return require("path").dirname(__filename) + "/";
			}
			return "";
		},

		//---------------------------------------------------------------
		// 現在の時間を取得
		currentTime: function() {
			return new Date().getTime();
		},

		//---------------------------------------------------------------
		// Elementの生成関連
		//---------------------------------------------------------------
		unselectable: function(el) {
			el.style.MozUserSelect = "none";
			el.style.KhtmlUserSelect = "none";
			el.style.webkitUserSelect = "none";
			el.style.msUserSelect = "none";
			el.style.userSelect = "none";
			el.unselectable = "on";
			return this;
		},

		//----------------------------------------------------------------------
		// pzpr.util.addEvent()          addEventListener()を呼び出す
		//----------------------------------------------------------------------
		addEvent: function(el, type, self, callback, capt) {
			var types = [type];
			if (type === "mousedown") {
				types = eventMouseDown;
			} else if (type === "mousemove") {
				types = eventMouseMove;
			} else if (type === "mouseup") {
				types = eventMouseUp;
			} else if (type === "mousecancel") {
				types = eventMouseCancel;
			}

			function executer(e) {
				callback.call(self, e);
			}
			types.forEach(function(type) {
				el.addEventListener(type, executer, !!capt);
			});

			return function remover() {
				types.forEach(function(type) {
					el.removeEventListener(type, executer, !!capt);
				});
			};
		},

		//---------------------------------------------------------------------------
		// pzpr.util.getMouseButton() 左/中/右ボタンが押されているかチェックする
		//---------------------------------------------------------------------------
		getMouseButton: function(e) {
			if (e.touches !== void 0) {
				/* touchイベントだった場合 */
				return e.touches.length === 1 ? "left" : "";
			} else if (!!e.pointerType && e.pointerType !== "mouse") {
				/* pointerイベントだった場合 */
				return e.isPrimary ? "left" : "";
			}
			return (
				["left", "middle", "right"][
					e.button !== void 0 ? e.button : e.which - 1
				] || ""
			);
		},

		//----------------------------------------------------------------------
		// pzpr.util.getPagePos() イベントが起こったページ上の座標を返す
		// pzpr.util.pageX()      イベントが起こったページ上のX座標を返す
		// pzpr.util.pageY()      イベントが起こったページ上のY座標を返す
		//----------------------------------------------------------------------
		getPagePos: function(e) {
			return { px: this.pageX(e), py: this.pageY(e) };
		},
		pageX: function(e) {
			if (e.touches !== void 0 && e.touches.length > 0) {
				var len = e.touches.length,
					pos = 0;
				if (len > 0) {
					for (var i = 0; i < len; i++) {
						pos += e.touches[i].pageX;
					}
					return pos / len;
				}
			}
			return e.pageX || 0;
		},
		pageY: function(e) {
			if (e.touches !== void 0 && e.touches.length > 0) {
				var len = e.touches.length,
					pos = 0;
				if (len > 0) {
					for (var i = 0; i < len; i++) {
						pos += e.touches[i].pageY;
					}
					return pos / len;
				}
			}
			return e.pageY || 0;
		},

		//--------------------------------------------------------------------------------
		// pzpr.util.getRect()   エレメントの四辺の座標を返す
		//--------------------------------------------------------------------------------
		getRect: function(el) {
			if (!pzpr.env.browser) {
				return { top: 0, bottom: 0, left: 0, right: 0, height: 0, width: 0 };
			}
			var rect = el.getBoundingClientRect(),
				scrollLeft,
				scrollTop;
			if (window.scrollX !== void 0) {
				scrollLeft = window.scrollX;
				scrollTop = window.scrollY;
			} else {
				/* IE11以下向け */
				var _html = document.documentElement;
				scrollLeft = _html.scrollLeft;
				scrollTop = _html.scrollTop;
			}
			var left = rect.left + scrollLeft;
			var top = rect.top + scrollTop;
			var right = rect.right + scrollLeft;
			var bottom = rect.bottom + scrollTop;
			return {
				top: top,
				bottom: bottom,
				left: left,
				right: right,
				height: bottom - top,
				width: right - left
			};
		},

		//---------------------------------------------------------------------------
		// pzpr.util.checkpid()  メニューなどが表示対象のパズルかどうか返す
		//---------------------------------------------------------------------------
		checkpid: function(str, pid) {
			var matches = str.match(/!?[a-z0-9-]+/g),
				isdisp = true;
			if (!!matches) {
				isdisp = false;
				for (var i = 0; i < matches.length; i++) {
					if (matches[i].charAt(0) !== "!") {
						if (matches[i] === pid) {
							isdisp = true;
						}
					} else {
						isdisp = matches[i].substr(1) !== pid;
					}
				}
			}
			return isdisp;
		}
	};
})();