IriSP.Widgets.Arrow = function(player, config) {

    IriSP.Widgets.Widget.call(this, player, config);

};

IriSP.Widgets.Arrow.prototype = new IriSP.Widgets.Widget();

IriSP.Widgets.Arrow.prototype.defaults = {

    arrow_height : 16,

    arrow_width : 24,

    base_height : 2,

    base_curve : 0,

    fill_url: IriSP.widgetsDir + '/img/pinstripe.png',

    fill_color: "#ffffff",

    inner_stroke_color: "#ffffff",

    inner_stroke_width: 4,

    outer_stroke_color: "#B6B8B8",

    outer_stroke_width: 1,

    animation_speed: 20,

    follow_current_time: false,

    annotation_type: "chap"

}

IriSP.Widgets.Arrow.prototype.draw = function() {

    this.height = this.arrow_height + this.base_height;

    this.$.addClass("Ldt-Arrow").css("height", this.height + "px");

    this.paper = new Raphael(this.container, this.width, this.height );

    window.myArrow = this;

    this.innerArrow = this.paper.path('M0,' + this.height + 'L' + this.width + ',' + this.height);

    this.outerArrow = this.paper.path('M0,' + this.height + 'L' + this.width + ',' + this.height);

    this.innerArrow.attr({

        stroke: this.inner_stroke_color,

        "stroke-width": this.inner_stroke_width,

        fill: this.fill_url ? ( 'url(' + this.fill_url + ')' ) : this.fill_color

    });

    this.outerArrow.attr({

        stroke: this.outer_stroke_color,

        "stroke-width": this.outer_stroke_width,

        fill: "none"

    });

    this.moveTo(0);

    this.bindPopcorn("timeupdate","onTimeupdate");

}

IriSP.Widgets.Arrow.prototype.drawAt = function(_x) {

    _x = Math.floor(Math.max(0, Math.min(_x, this.width)));

    var _d = 'M0,' + this.height

        + 'L0,' + Math.min( this.height, this.arrow_height + this.base_curve)

        + 'Q0,' + this.arrow_height

        + ' ' + Math.max(0, Math.min(this.base_curve, _x - this.arrow_width / 2)) + ',' + this.arrow_height

        + 'L' + Math.max(0, _x - this.arrow_width / 2) + ',' + this.arrow_height

        + 'L' + Math.max(0, _x - this.arrow_width / 2) + ',' + Math.min(this.arrow_height, 2 * this.arrow_height * _x / this.arrow_width)

        + 'L' + _x + ',0'

        + 'L' + Math.min(this.width, _x + this.arrow_width / 2) + ',' + Math.min(this.arrow_height, 2 * this.arrow_height * ( this.width - _x ) / this.arrow_width)

        + 'L' + Math.min(this.width, _x + this.arrow_width / 2) + ',' + this.arrow_height

        + 'L' + Math.min(this.width, Math.max(this.width - this.base_curve, _x + this.arrow_width / 2)) + ',' + this.arrow_height

        + 'Q' + this.width + ',' + this.arrow_height

        + ' ' + this.width + ',' + Math.min( this.height, this.arrow_height + this.base_curve)

        + 'L' + this.width + ',' + this.height;

    this.innerArrow.attr({

        path: _d

    });

    this.outerArrow.attr({

        path: _d

    });

}

IriSP.Widgets.Arrow.prototype.moveTo = function(_x) {

    this.targetX = Math.floor(Math.max(0, Math.min(_x, this.width)));

    if (typeof this.animInterval === "undefined") {

        this.animInterval = window.setInterval(

            this.functionWrapper("increment"),

            40

        )

    }

    this.increment();

}

IriSP.Widgets.Arrow.prototype.increment = function() {

    if (typeof this.currentX === "undefined") {

        this.currentX = this.targetX;

    }

    if (this.currentX < this.targetX) {

        this.currentX = Math.min(this.targetX, this.currentX + this.animation_speed);

    }

    if (this.currentX > this.targetX) {

        this.currentX = Math.max(this.targetX, this.currentX - this.animation_speed);

    }

    if (this.currentX === this.targetX) {

        window.clearInterval(this.animInterval);

        this.animInterval = undefined;

    }

    this.drawAt(this.currentX);

}

IriSP.Widgets.Arrow.prototype.onTimeupdate = function() {

    var _list = [],

        _time = Math.floor(this.player.popcorn.currentTime() * 1000);

    if (!this.follow_current_time) {

        _list = this.getWidgetAnnotations().filter(function(_annotation) {

            return _annotation.begin <= _time && _annotation.end > _time;

        });

    }

    if (_list.length) {

        _time = ( _list[0].begin + _list[0].end ) / 2;

    }

    var _x = this.width * _time / this.source.getDuration();

    this.moveTo(_x);

}