thedesk/app/js/ui/img.js

/*イメージビューワー*/
//postのimg.jsとは異なります。
function imgv(id, key, acct_id) {
	$("#imgprog").text(0);
	$('#imgmodal').hide();
	$('#imgmodal').attr('src', '../../img/loading.svg');
	var murl = $("#" + id + "-image-" + key).attr("data-url");
	var type = $("#" + id + "-image-" + key).attr("data-type");
	$("#imagemodal").attr("data-id", id);
	$("#imagemodal").attr("data-acct", acct_id);
	$(document).ready(function () {
		if (type == "image") {
			$('#imagemodal').modal('open');
			xhr = new XMLHttpRequest;
			xhr.open('GET', murl, true);
			xhr.addEventListener('progress', function (event) {
				if (event.lengthComputable) {
					var total = event.total;
					var now = event.loaded;
					var per = now / total * 100;
					$("#imgprog").text(Math.floor(per));
				}
			}, false);
			xhr.addEventListener('loadend', function (event) {
				var total = event.total;
				var now = event.loaded;
				var per = now / total * 100;
				$("#imgprog").text(Math.floor(per));
			}, false);
			xhr.send();
			$('#imgmodal').attr('src', murl);
			$('#imagewrap').dragScroll(); // ドラッグスクロール設定
			$('#imgmodal').show();
			$('#imagemodal').attr('data-key', key);
			$('#imagemodal').attr('data-id', id);
		} else if (type == "video" || type == "gifv") {
			$('#video').attr('src', murl);
			$('#videomodal').modal('open');
			$('#imgmodal').show();
		}
		var element = new Image();
		var width;
		element.onload = function () {
			var width = element.naturalWidth;
			var height = element.naturalHeight;
			var windowH = $(window).height();
			var windowW = $(window).width();
			$("#imagemodal").css("bottom", "0")
			$("#imagemodal img").css("width", "auto")
			if (height < windowH) {
				$("#imagemodal").css("height", height + 60 + "px")
				$("#imagemodal img").css("height", "100%")
				if (width > windowW * 0.8) {
					$("#imagemodal").css("width", "80vw")
					$("#imagemodal img").css("width", "100%")
					var heightS = windowW * 0.8 / width * height;
					$("#imagemodal").css("height", heightS + 60 + "px")
				} else {
					$("#imagemodal").css("width", width + "px")
				}
			} else {
				$("#imagemodal img").css("width", "auto")
				var widthS = windowH / height * width;
				if (widthS < windowW) {
					$("#imagemodal").css("width", widthS + "px")
				} else {
					$("#imagemodal").css("width", "100vw")
				}

				$("#imagemodal").css("height", "100vh")
				$("#imagemodal img").css("height", "calc(100vh - 60px)")
			}

		}
		if ($("#" + id + "-image-" + (key * 1 + 1)).length == 0) {
			$("#image-next").prop("disabled", true);
		} else {
			$("#image-next").prop("disabled", false);
		}
		if ($("#" + id + "-image-" + (key * 1 - 1)).length == 0) {
			$("#image-prev").prop("disabled", true);
		} else {
			$("#image-prev").prop("disabled", false);
		}
		element.src = murl;
	});
}
//イメージビューワーの送り
function imgCont(type) {
	$("#imgprog").text(0);
	var key = $('#imagemodal').attr('data-key');
	var id = $('#imagemodal').attr('data-id');
	if (type == "next") {
		key++;
	} else if (type == "prev") {
		key = key * 1 - 1;
	}
	var murl = $("#" + id + "-image-" + key).attr("data-url");
	if (murl) {
		$('#imgmodal').attr('src', '../../img/loading.svg');
		var type = $("#" + id + "-image-" + key).attr("data-type");
		$(document).ready(function () {
			if (type == "image") {
				xhr = new XMLHttpRequest;
				xhr.open('GET', murl, true);
				xhr.responseType = "arraybuffer";
				xhr.addEventListener('progress', function (event) {
					if (event.lengthComputable) {
						var total = event.total;
						var now = event.loaded;
						var per = now / total * 100;
						$("#imgprog").text(Math.floor(per));
					}
				}, false);
				xhr.addEventListener('loadend', function (event) {
					var total = event.total;
					var now = event.loaded;
					var per = now / total * 100;
					$("#imgprog").text(Math.floor(per));
				}, false);
				xhr.send();
				$('#imgmodal').attr('src', murl);
				$('#imagewrap').dragScroll(); // ドラッグスクロール設定
				$('#imagemodal').attr('data-key', key);
				$('#imagemodal').attr('data-id', id);
			} else if (type == "video" || type == "gifv") {
				$('#video').attr('src', murl);
				$('#videomodal').modal('open');
			}
			var element = new Image();
			var width;
			element.onload = function () {
				var width = element.naturalWidth;
				var height = element.naturalHeight;
				var windowH = $(window).height();
				var windowW = $(window).width();
				$("#imagemodal").css("bottom", "0")
				$("#imagemodal img").css("width", "auto")
				if (height < windowH) {
					$("#imagemodal").css("height", height + 60 + "px")
					$("#imagemodal img").css("height", "100%")
					if (width > windowW * 0.8) {
						$("#imagemodal").css("width", "80vw")
						$("#imagemodal img").css("width", "100%")
						var heightS = windowW * 0.8 / width * height;
						$("#imagemodal").css("height", heightS + 60 + "px")
					} else {
						$("#imagemodal").css("width", width + "px")
					}
				} else {
					$("#imagemodal img").css("width", "auto")
					var widthS = windowH / height * width;
					if (widthS < windowW) {
						$("#imagemodal").css("width", widthS + "px")
					} else {
						$("#imagemodal").css("width", "100vw")
					}

					$("#imagemodal").css("height", "100vh")
					$("#imagemodal img").css("height", "calc(100vh - 60px)")
				}
			}
			if ($("#" + id + "-image-" + (key * 1 + 1)).length === 0) {
				$("#image-next").prop("disabled", true);
			} else {
				$("#image-next").prop("disabled", false);
			}
			if ($("#" + id + "-image-" + (key * 1 - 1)).length === 0) {
				$("#image-prev").prop("disabled", true);
			} else {
				$("#image-prev").prop("disabled", false);
			}
			element.src = murl;

		});
	}
}
//ズームボタン(z:倍率)
function zoom(z) {
	var wdth = $('#imagewrap img').width();
	var wdth = wdth * z;
	$('#imagewrap img').css("width", wdth + "px");
	var hgt = $('#imagewrap img').height();
	var hgt = hgt * z;
	$('#imagewrap img').css("height", hgt + "px");
}
//スマホ対応ドラッグ移動システム
(function () {
	$.fn.dragScroll = function () {
		var target = this;
		$(this).mousedown(function (event) {
			$(this)
				.data('down', true)
				.data('x', event.clientX)
				.data('y', event.clientY)
				.data('scrollLeft', this.scrollLeft)
				.data('scrollTop', this.scrollTop);
			return false;
		}).css({
			'overflow': 'hidden', // スクロールバー非表示
			'cursor': 'move'
		});
		// ウィンドウから外れてもイベント実行
		$(document).mousemove(function (event) {
			if ($(target).data('down') == true) {
				// スクロール
				target.scrollLeft($(target).data('scrollLeft') + $(target).data('x') -
					event.clientX);
				target.scrollTop($(target).data('scrollTop') + $(target).data('y') -
					event.clientY);
				return false; // 文字列選択を抑止
			}
		}).mouseup(function (event) {
			$(target).data('down', false);
		});
		$(this).on('touchstart', function (event) {
			$(this)
				.data('down', true)
				.data('x', getX(event))
				.data('y', getY(event))
				.data('scrollLeft', this.scrollLeft)
				.data('scrollTop', this.scrollTop);
			return false;
		}).css({
			'overflow': 'hidden', // スクロールバー非表示
			'cursor': 'move'
		}); //指が触れたか検知
		$(this).on('touchmove', function (event) {
			if ($(target).data('down') === true) {
				// スクロール
				target.scrollLeft($(target).data('scrollLeft') + $(target).data('x') -
					getX(event));
				target.scrollTop($(target).data('scrollTop') + $(target).data('y') -
					getY(event));
				return false; // 文字列選択を抑止
			} else { }
		}); //指が動いたか検知
		$(this).on('touchend', function (event) {
			$(target).data('down', false);
		});

		return this;
	}
})(jQuery);

function getX(event) {
	return event.originalEvent.touches[0].pageX;
}

function getY(event) {
	return event.originalEvent.touches[0].pageY;
}
//マウスホイールで拡大
var element = document.getElementById("imagemodal");
element.onmousewheel = function (e) {
	var delta = e.wheelDelta;
	if (delta > 0) {
		zoom(1.1)
	} else {
		zoom(0.9)
	}
}

//当該トゥート
function detFromImg() {
	var id = $("#imagemodal").attr("data-id");
	var acct_id = $("#imagemodal").attr("data-acct");
	$('#imagemodal').modal('close');
	details(id, acct_id);
}
//画像保存
function dlImg() {
	var url = $("#imgmodal").attr("src");
	if (localStorage.getItem("savefolder")) {
		var save = localStorage.getItem("savefolder");
	} else {
		var save = "";
	}
	postMessage(["generalDL", [url, save, false]], "*")

}
function openFinder(dir) {
	postMessage(["openFinder", dir], "*")
}