var tfx_handlers = {};

function tfx_func_swap_idx_by_coru() {
	this.idx.a = (this.coru=="c")?this.idx.f:this.idx.t;
	this.idx.b = (this.coru=="c")?this.idx.t:this.idx.f;
};

function tfx_func_anim(rec) {
	var verb = rec["verb"] || this.verb;
	var dura = rec["dura"] || this.ttime;
	var delay = rec["delay"] || 0;
	var easing = this.easing || "ease";
	var direction = !this.b_reverse ? "normal" : "reverse";
	return {
		"animation-name":"kf-sshow-tfx-"+verb+"-"+rec["name"],
		"animation-duration":dura+"s",
		"animation-timing-function":easing,
		"animation-direction":direction,
		"animation-delay":delay+"s",
		"animation-iteration-count":1,
		"animation-fill-mode":"both"
	};
};

function tfx_func_core(pt) {
	var verb = this.verb_core || this.verb;
	if ( this.idx[pt] == undefined ) {
		this.idx[pt] = (pt=="a")?this.idx.f:this.idx.t;
	}
	var jqo = CSlideMan.create(this.idx[pt]);
	if ( this.init[pt] ) {
		jqo.addClass("init-sshow-tfx-"+verb+"-"+this.init[pt])
	}
	if ( this.kf[pt] ) {
		jqo.css(tfx_func_anim.call(this,{
			verb:verb,
			name:this.kf[pt]
		}));
	}
	jqo.appendTo(sshow.jqo_slide_w);
};

function tfx_func_render() {
	tfx_func_core.call(this,"a");
	tfx_func_core.call(this,"b");
};

tfx_handlers["fade"] = function() {
	this.kf.a = "f";
	this.kf.b = "t";
	tfx_func_render.call(this);
};

tfx_handlers["zoom"] = function() {
	tfx_func_swap_idx_by_coru.call(this);
	this.init.b = "t";
	this.kf.b = "t-"+this.coru;
	tfx_func_render.call(this);
};

tfx_handlers["scroll"] = function() {
	this.kf.a = "f-"+this.dir;
	this.kf.b = "t-"+this.dir;
	tfx_func_render.call(this);
};

tfx_handlers["turn"] = function() {
	this.init.a = "f-"+this.dir;
	this.kf.a = "f-"+this.dir;
	this.init.b = "t-"+this.dir;
	this.kf.b = "t-"+this.dir;
	tfx_func_render.call(this);
};

tfx_handlers["cover"] = function() {
	this.verb_core = "cover";
	this.coru = "c";
	tfx_func_swap_idx_by_coru.call(this);
	this.init.b = this.dir;
	this.kf.b = "t-"+this.coru+"-"+this.dir;
	tfx_func_render.call(this,"cover");
};

tfx_handlers["uncover"] = function() {
	this.verb_core = "cover";
	this.coru = "u";
	tfx_func_swap_idx_by_coru.call(this);
	this.init.b = this.dir;
	this.kf.b = "t-"+this.coru+"-"+this.dir;
	tfx_func_render.call(this,"cover");
};

tfx_handlers["bounce"] = function() {
	tfx_func_swap_idx_by_coru.call(this);
	this.init.b = this.dir;
	this.kf.b = "t-"+this.coru+"-"+this.dir;
	tfx_func_render.call(this);
};

var kenburns_n = -1;
tfx_handlers["kenburns"] = function() {
	if ( this.dir == "random" ) {
		var n = Math.floor(Math.random() * 5);
		if ( kenburns_n == n ) {
			n = ((n + 1) % 5);
		}
		kenburns_n = n;
		switch( n ) {
		case 0: dir = "cc"; break;
		case 1: dir = "tl"; break;
		case 2: dir = "tr"; break;
		case 3: dir = "br"; break;
		case 4: dir = "bl"; break;
		}
	} else {
		dir = this.dir;
	}

	this.init.a = dir;
	this.kf.a = "f";
	this.init.b = dir;
	this.kf.b = "t";
	tfx_func_render.call(this);
};

tfx_handler_slice = function() {

	var size = sshow.getSlideSize();

	tfx_func_swap_idx_by_coru.call(this);
	CSlideMan.create(this.idx.a).appendTo(sshow.jqo_slide_w);
	var jqo_b = CSlideMan.create(this.idx.b);

	var jqo_board = $("<div>")
		.addClass("slide-base")
		.appendTo(sshow.jqo_slide_w);

	var b_lr_dir;
	switch ( this.verb ) {
	case "slice":
		b_lr_dir = ((this.dir=="left")||(this.dir=="right"));
		break;
	case "blind":
		b_lr_dir = ((this.dir=="up")||(this.dir=="down"));
		break;
	}

	var nos,dw,dh,remainder,rw,rh;
	if ( b_lr_dir ) {
		nos = Math.min(this.nos,size.h);
		dh = Math.floor(size.h / nos);
		remainder = size.h % nos;
		rw = size.w;
	} else {
		nos = Math.min(this.nos,size.w);
		dw = Math.floor(size.w / nos);
		remainder = size.w % nos;
		rh = size.h;
	}

	var x = 0;
	var y = 0;
	var jqo_clip = [];
	for( var i = 0; i < nos; i++ ) {

		if ( b_lr_dir ) {
			rh = dh;
			if ( 0 < remainder ) {
				rh += 1;
				remainder--;
			}
		} else {
			rw = dw;
			if ( 0 < remainder ) {
				rw += 1;
				remainder--;
			}
		}

		jqo_clip[i] = $("<div>")
			.css({
				position:"absolute",
				left:x+"px",
				top:y+"px",
				width:rw+"px",
				height:rh+"px",
				overflow:"hidden",
			})
			.html($("<div>")
				.attr("class","slice-board")
				.css({
					position:"relative",
					width:rw+"px",
					height:rh+"px",
					overflow:"hidden",
				})
				.html($("<div>")
					.addClass("slide-base")
					.css({
						top:-y+"px",
						left:-x+"px",
						width:size.w+"px",
						height:size.h+"px"
					})
					.html(
						jqo_b.clone()
					)
				)
			)
			.appendTo(jqo_board);

		if ( b_lr_dir ) {
			y += rh;
		} else {
			x += rw;
		}
	}

	var half = this.ttime/2;
	var dt = half/nos;
	for( var i = 0; i < nos; i++ ) {
		var delay = (!this.b_reverse?dt*i:dt*(nos-i-1));
		jqo_clip[i].find(".slice-board").css(tfx_func_anim.call(this,{
			"verb":"slice",
			"name":this.coru+"-"+this.dir,
			"dura":half,
			"delay":delay
		}));
	}
};

tfx_handlers["slice"] = function() {
	tfx_handler_slice.call(this);
};

tfx_handlers["blind"] = function() {
	tfx_handler_slice.call(this);
};

tfx_handlers["gate"] = function() {

	var size = sshow.getSlideSize();

	tfx_func_swap_idx_by_coru.call(this);
	CSlideMan.create(this.idx.a).appendTo(sshow.jqo_slide_w);
	var jqo_b = CSlideMan.create(this.idx.b);

	var jqo_board = $("<div>")
		.addClass("slide-base")
		.appendTo(sshow.jqo_slide_w);

	var _this = this;
	var func_create = function(px){

		var ctar_css = {
			position:"absolute",
			width:px.ctar_w+"px",
			height:px.ctar_h+"px",
			overflow:"hidden",
		};
		if ( px.ctar_t != undefined ) { ctar_css.top = px.ctar_t; }
		if ( px.ctar_b != undefined ) { ctar_css.bottom = px.ctar_b; }
		if ( px.ctar_l != undefined ) { ctar_css.left = px.ctar_l; }
		if ( px.ctar_r != undefined ) { ctar_css.right = px.ctar_r; }

		return $("<div>")
			.css(ctar_css)
			.html($("<div>")
				.attr("class","slice-board")
				.css({
					position:"relative",
					width:px.slice_w+"px",
					height:px.slice_h+"px",
					overflow:"hidden"
				})
				.html($("<div>")
					.addClass("slide-base")
					.css({
						top:px.shift_t+"px",
						left:px.shift_l+"px",
						width:size.w+"px",
						height:size.h+"px"
					})
					.html(
						jqo_b.clone()
					)
				)
			)
			.appendTo(jqo_board)
			.find(".slice-board").css(tfx_func_anim.call(_this,{
				"name":_this.coru+"-"+px.key
			}));
	};

	switch( this.dir ) {
	case "hori":
		var dr = Math.floor(size.w / 2);
		var dl = dr+(size.w % 2);

		func_create({
			key:"l",
			ctar_l:0,
			ctar_w:dl,
			ctar_h:size.h,
			slice_w:dl,
			slice_h:size.h,
			shift_l:0
		});

		func_create({
			key:"r",
			ctar_r:0,
			ctar_w:dr,
			ctar_h:size.h,
			slice_w:dr,
			slice_h:size.h,
			shift_l:-dl
		});
		break;

	case "vert":
		var dt = Math.floor(size.h / 2);
		var db = dt+(size.h % 2);

		func_create({
			key:"t",
			ctar_t:0,
			ctar_w:size.w,
			ctar_h:dt,
			slice_w:size.w,
			slice_h:dt,
			shift_t:0
		});

		func_create({
			key:"b",
			ctar_b:0,
			ctar_w:size.w,
			ctar_h:db,
			slice_w:size.w,
			slice_h:db,
			shift_t:-dt
		});
		break;
	}
};