/* ===========================================================
 * Bootstrap: fileinput.js v3.1.3
 * http://jasny.github.com/bootstrap/javascript/#fileinput
 * ===========================================================
 * Copyright 2012-2014 Arnold Daniels
 *
 * Licensed under the Apache License, Version 2.0 (the "License")
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ========================================================== */

+(function ($) {
  "use strict";

  var isIE = window.navigator.appName == "Microsoft Internet Explorer";

  // FILEUPLOAD PUBLIC CLASS DEFINITION
  // =================================

  var Fileinput = function (element, options) {
    this.$element = $(element);

    this.$input = this.$element.find(":file");
    if (this.$input.length === 0) return;

    this.name = this.$input.attr("name") || options.name;

    this.$hidden = this.$element.find(
      'input[type=hidden][name="' + this.name + '"]'
    );
    if (this.$hidden.length === 0) {
      this.$hidden = $('<input type="hidden">').insertBefore(this.$input);
    }

    this.$preview = this.$element.find(".fileinput-preview");
    var height = this.$preview.css("height");
    if (
      this.$preview.css("display") !== "inline" &&
      height !== "0px" &&
      height !== "none"
    ) {
      this.$preview.css("line-height", height);
    }

    this.original = {
      exists: this.$element.hasClass("fileinput-exists"),
      preview: this.$preview.html(),
      hiddenVal: this.$hidden.val(),
    };

    this.listen();
  };

  (Fileinput.prototype.listen = function () {
    this.$input.on("change.bs.fileinput", $.proxy(this.change, this));
    $(this.$input[0].form).on("reset.bs.fileinput", $.proxy(this.reset, this));

    this.$element
      .find('[data-trigger="fileinput"]')
      .on("click.bs.fileinput", $.proxy(this.trigger, this));
    this.$element
      .find('[data-dismiss="fileinput"]')
      .on("click.bs.fileinput", $.proxy(this.clear, this));
  }),
    (Fileinput.prototype.change = function (e) {
      var files =
        e.target.files === undefined
          ? e.target && e.target.value
            ? [{ name: e.target.value.replace(/^.+\\/, "") }]
            : []
          : e.target.files;

      e.stopPropagation();

      if (files.length === 0) {
        this.clear();
        return;
      }

      this.$hidden.val("");
      this.$hidden.attr("name", "");
      this.$input.attr("name", this.name);

      var file = files[0];

      if (
        this.$preview.length > 0 &&
        (typeof file.type !== "undefined"
          ? file.type.match(/^image\/(gif|png|jpeg)$/)
          : file.name.match(/\.(gif|png|jpe?g)$/i)) &&
        typeof FileReader !== "undefined"
      ) {
        var reader = new FileReader();
        var preview = this.$preview;
        var element = this.$element;

        reader.onload = function (re) {
          var $img = $("<img>");
          $img[0].src = re.target.result;
          files[0].result = re.target.result;

          element.find(".fileinput-filename").text(file.name);

          // if parent has max-height, using `(max-)height: 100%` on child doesn't take padding and border into account
          if (preview.css("max-height") != "none")
            $img.css(
              "max-height",
              parseInt(preview.css("max-height"), 10) -
                parseInt(preview.css("padding-top"), 10) -
                parseInt(preview.css("padding-bottom"), 10) -
                parseInt(preview.css("border-top"), 10) -
                parseInt(preview.css("border-bottom"), 10)
            );

          preview.html($img);
          element.addClass("fileinput-exists").removeClass("fileinput-new");

          element.trigger("change.bs.fileinput", files);
        };

        reader.readAsDataURL(file);
      } else {
        this.$element.find(".fileinput-filename").text(file.name);
        this.$preview.text(file.name);

        this.$element.addClass("fileinput-exists").removeClass("fileinput-new");

        this.$element.trigger("change.bs.fileinput");
      }
    }),
    (Fileinput.prototype.clear = function (e) {
      if (e) e.preventDefault();

      this.$hidden.val("");
      this.$hidden.attr("name", this.name);
      this.$input.attr("name", "");

      //ie8+ doesn't support changing the value of input with type=file so clone instead
      if (isIE) {
        var inputClone = this.$input.clone(true);
        this.$input.after(inputClone);
        this.$input.remove();
        this.$input = inputClone;
      } else {
        this.$input.val("");
      }

      this.$preview.html("");
      this.$element.find(".fileinput-filename").text("");
      this.$element.addClass("fileinput-new").removeClass("fileinput-exists");

      if (e !== undefined) {
        this.$input.trigger("change");
        this.$element.trigger("clear.bs.fileinput");
      }
    }),
    (Fileinput.prototype.reset = function () {
      this.clear();

      this.$hidden.val(this.original.hiddenVal);
      this.$preview.html(this.original.preview);
      this.$element.find(".fileinput-filename").text("");

      if (this.original.exists)
        this.$element.addClass("fileinput-exists").removeClass("fileinput-new");
      else
        this.$element.addClass("fileinput-new").removeClass("fileinput-exists");

      this.$element.trigger("reset.bs.fileinput");
    }),
    (Fileinput.prototype.trigger = function (e) {
      this.$input.trigger("click");
      e.preventDefault();
    });

  // FILEUPLOAD PLUGIN DEFINITION
  // ===========================

  var old = $.fn.fileinput;

  $.fn.fileinput = function (options) {
    return this.each(function () {
      var $this = $(this),
        data = $this.data("bs.fileinput");
      if (!data)
        $this.data("bs.fileinput", (data = new Fileinput(this, options)));
      if (typeof options == "string") data[options]();
    });
  };

  $.fn.fileinput.Constructor = Fileinput;

  // FILEINPUT NO CONFLICT
  // ====================

  $.fn.fileinput.noConflict = function () {
    $.fn.fileinput = old;
    return this;
  };

  // FILEUPLOAD DATA-API
  // ==================

  $(document).on(
    "click.fileinput.data-api",
    '[data-provides="fileinput"]',
    function (e) {
      var $this = $(this);
      if ($this.data("bs.fileinput")) return;
      $this.fileinput($this.data());

      var $target = $(e.target).closest(
        '[data-dismiss="fileinput"],[data-trigger="fileinput"]'
      );
      if ($target.length > 0) {
        e.preventDefault();
        $target.trigger("click.bs.fileinput");
      }
    }
  );
})(window.jQuery);