dynamictemplate/lib/compile.js

Δt - async & dynamic templating engine

(function() {
  var DOMElementType, HTMLCompiler, Tag, Template, copy_structure, deep_merge, example, example2, fs, hook, isArray, jQuery, jsonify, mask, match, new_tag, slim, slim_attrs, suitup, traverse, trim, util, _ref;
  var __slice = Array.prototype.slice;

  fs = require('fs');

  jQuery = require('jquery');

  isArray = Array.isArray;

  DOMElementType = {
    NORMAL: 1,
    TEXT: 3,
    CDATA: 4,
    FRAGMENT: 11
  };

  deep_merge = function() {
    var k, obj, objs, res, v, _i, _len;
    objs = 1 <= arguments.length ? __slice.call(arguments, 0) : [];
    if (isArray(objs[0])) objs = objs[0];
    res = {};
    for (_i = 0, _len = objs.length; _i < _len; _i++) {
      obj = objs[_i];
      for (k in obj) {
        v = obj[k];
        if (typeof v === 'object' && !isArray(v)) {
          res[k] = deep_merge(res[k] || {}, v);
        } else {
          res[k] = v;
        }
      }
    }
    return res;
  };

  trim = function(str) {
    return str.replace(/^\s+|\s+$/g, "");
  };

  slim_attrs = function(el) {
    var attr, attrs, _i, _len, _ref, _ref2;
    attrs = {};
    _ref2 = (_ref = el.attributes) != null ? _ref : [];
    for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
      attr = _ref2[_i];
      attrs[attr.name] = attr.value;
    }
    return attrs;
  };

  slim = function(el) {
    return {
      name: el.nodeName.toLowerCase(),
      attrs: slim_attrs(el),
      children: traverse(el.childNodes)
    };
  };

  traverse = function(elems) {
    var el, res, _i, _len;
    if (elems == null) return [];
    res = [];
    for (_i = 0, _len = elems.length; _i < _len; _i++) {
      el = elems[_i];
      if (el.nodeType === DOMElementType.NORMAL) {
        res.push(slim(el));
      } else if (el.nodeType === DOMElementType.TEXT) {
        if (trim(el.value).length) res.push(el.value);
      } else {
        continue;
      }
    }
    return res;
  };

  jsonify = function(elems) {
    var el, _i, _len, _ref, _results;
    _ref = elems != null ? elems : [];
    _results = [];
    for (_i = 0, _len = _ref.length; _i < _len; _i++) {
      el = _ref[_i];
      _results.push(slim(el));
    }
    return _results;
  };

  copy_structure = function(tree) {
    var el, res, _i, _len, _ref;
    res = [];
    _ref = tree != null ? tree : [];
    for (_i = 0, _len = _ref.length; _i < _len; _i++) {
      el = _ref[_i];
      if (typeof el === 'string' || typeof el === 'number') {
        res.push(el);
        continue;
      }
      res.push({
        name: el.name,
        attrs: el.attrs,
        children: copy_structure(el.children)
      });
    }
    return res;
  };

  match = function(tag, el) {
    var key, value, _ref, _ref2;
    if (el == null) return true;
    if (tag.name !== el.name) return false;
    _ref = tag.attrs;
    for (key in _ref) {
      value = _ref[key];
      if (el.attrs[key] !== value) {
        if (typeof value !== 'string' || (((_ref2 = el.attrs[key]) != null ? _ref2.indexOf(value) : void 0) || -1) === -1) {
          return false;
        }
      }
    }
    return true;
  };

  new_tag = function(parent, el, callback) {
    var attrs;
    attrs = deep_merge(el.attrs);
    return parent.tag(el.name, attrs, function() {
      var child, _i, _len, _ref, _ref2;
      _ref2 = (_ref = el.children.slice()) != null ? _ref : [];
      for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
        child = _ref2[_i];
        if (typeof child === 'string' || typeof child === 'number') {
          this.text("" + child, {
            append: true
          });
        } else {
          new_tag(this, child, function() {
            if (typeof callback === "function") callback();
            return callback = null;
          });
        }
      }
      this.end();
      return typeof callback === "function" ? callback() : void 0;
    });
  };

  mask = function(tag, el) {
    if (el == null) return;
    tag.attr(el.attrs);
    return tag._elems = el.children;
  };

  hook = function(tpl) {
    return tpl.xml.use(function(parent, tag, next) {
      var elems, repeat;
      elems = parent._elems;
      if (elems == null) return next(tag);
      repeat = function() {
        var el;
        el = elems[0];
        if (typeof el === 'string' || typeof el === 'number') {
          console.log("text".blue, el);
          elems.shift();
          if (typeof parent.text === "function") {
            parent.text(el, {
              append: true
            });
          }
          return repeat();
        } else if (match(tag, el)) {
          console.log("match".yellow, el != null ? el.name : void 0, el != null ? el.attrs : void 0);
          elems.shift();
          mask(tag, el);
          return next(tag);
        } else {
          console.log("new".green, el != null ? el.name : void 0, el != null ? el.attrs : void 0, "(", tag.name, tag.attrs, ")");
          console.log("WTF WTF WTF WTF".bold.red, tag.name, tag.attrs);
          return new_tag(parent, el, function() {
            console.log("repeat".red, tag.name, tag.attrs, "(", el != null ? el.name : void 0, el != null ? el.attrs : void 0, ")");
            return repeat();
          });
        }
      };
      return repeat();
    });
  };

  suitup = function(rawtemplate, tree) {
    return function() {
      var args, elems, tpl;
      args = 1 <= arguments.length ? __slice.call(arguments, 0) : [];
      tpl = rawtemplate.apply(null, args);
      elems = copy_structure(tree);
      tpl.xml._elems = elems;
      hook(tpl);
      return tpl;
    };
  };

  HTMLCompiler = (function() {

    function HTMLCompiler() {
      this.$ = jQuery.create();
      this.loadSync = this.open;
    }

    HTMLCompiler.prototype.read = function(filename, callback) {
      var _this = this;
      return fs.readFile(filename, function(err, data) {
        return callback != null ? callback.call(_this, err, data != null ? data.toString() : void 0) : void 0;
      });
    };

    HTMLCompiler.prototype.readSync = function(filename) {
      var _ref;
      return (_ref = fs.readFileSync(filename)) != null ? _ref.toString() : void 0;
    };

    HTMLCompiler.prototype.parse = function(data) {
      return this.el = this.$(data);
    };

    HTMLCompiler.prototype.select = function(from, to) {
      var el;
      el = this.el.find(from);
      el = el.clone();
      el.find(to).remove();
      return el;
    };

    HTMLCompiler.prototype.use = function(data) {
      this.loaded = true;
      return this.parse(data);
    };

    HTMLCompiler.prototype.load = function(filename, callback) {
      return this.read(filename, function(err, data) {
        if (err) return callback.call(this, err);
        this.use(data);
        return callback(null, this.el);
      });
    };

    HTMLCompiler.prototype.open = function(filename) {
      var data;
      data = this.readSync(filename);
      return this.use(data);
    };

    HTMLCompiler.prototype.compile = function(rawtemplate, el) {
      var r, tree;
      if (!this.loaded) {
        throw new Error("no html file loaded or html string used.");
      }
      console.log("building data structure ...");
      if (el == null) el = this.el;
      tree = jsonify(el);
      console.log("design is ready loaded. suiting up the template ...");
      r = suitup(rawtemplate, tree);
      r.tree = tree;
      console.log("done.");
      return r;
    };

    /*`<div id="channels" class="antiscroll-wrap">
      <div class="antiscroll-inner scrollHolder">
        <div class="channel selected">
          <div class="avatar" style="background-image: url(public/avatars/user2.jpg)">
            <span class="channelpost counter">2</span>
          </div>
          <div class="info">
            <span class="owner">vera<span class="domain">@buddycloud.com</span></span>
            <span class="status">What a wonderful day</span>
          </div>
        </div>`
    */

    return HTMLCompiler;

  })();

  require('colors');

  util = require('util');

  util.orginspect = util.inspect;

  util.inspect = require('eyes').inspector({
    stream: null,
    hexy: {
      format: 'fours'
    }
  });

  _ref = require('./dynamictemplate'), Template = _ref.Template, Tag = _ref.Tag;

  example = function() {
    var channelsdesign, design, rawtemplate, streamshtml, template, _ref2;
    design = new HTMLCompiler;
    console.log("* loading html ...");
    streamshtml = design.open('/home/dodo/code/arbyt/buddycloud/webclient/brunch/build/streams.html');
    console.log("* selecting part of the html ...");
    channelsdesign = streamshtml.select('#channels', '.channel');
    console.log("S", (_ref2 = streamshtml.select('.channel')) != null ? _ref2.length : void 0);
    rawtemplate = function(ee) {
      return new Template({
        schema: 5
      }, function() {
        return this.$div({
          id: 'channels'
        }, function() {
          return this.$div(function() {
            var _this = this;
            return ee != null ? ee.on('new:channel', function(channel) {
              return _this.$div({
                "class": 'channel'
              }, function() {
                this.$div({
                  "class": 'avatar',
                  style: "background-image:url(" + channel.avatar + ")"
                }, function() {
                  return this.$span({
                    "class": 'counter'
                  }, channel.counter);
                });
                return this.$div({
                  "class": 'info'
                }, function() {
                  var _ref3;
                  this.$span({
                    "class": 'owner'
                  }, function() {
                    var jid, _ref3;
                    jid = ((_ref3 = channel.get('jid')) != null ? _ref3.split('@') : void 0) || [];
                    this.text("" + jid[0]);
                    return this.$span({
                      "class": 'domain'
                    }, "" + jid[1]);
                  });
                  return this.$span({
                    "class": 'status'
                  }, ((_ref3 = channel.nodes.get('status')) != null ? _ref3.last() : void 0) || "");
                });
              });
            }) : void 0;
          });
        });
      });
    };
    console.log("* start compiling ...");
    return template = design.compile(rawtemplate, channelsdesign);
  };

  example2 = function() {
    var design, rawtemplate, template;
    design = new HTMLCompiler;
    console.log("* using html ...");
    design.use("<div id=\"main\">\n    <div class=\"logo\" id=\"big\">some <a href=\"#\">linked</a> logo</div>\n    <div class=\"tor list\" id=\"zwiebel\">\n        <div class=\"entry\">some random entry</div>\n    </div>\n    <span>impressum</span>\n</div>\n<script>alert('evil');</script>");
    rawtemplate = function() {
      return new Template({
        schema: 5
      }, function() {
        return this.$div({
          id: 'main'
        }, function() {
          this.$div({
            "class": 'list'
          }, function() {
            return this.$div({
              "class": 'entry'
            }, "specific text");
          });
          return this.$footer("stuff");
        });
      });
    };
    console.log("* start compiling ...");
    template = design.compile(rawtemplate);
    template.design = design;
    return template;
  };

  module.exports = {
    example: example,
    example2: example2,
    HTMLCompiler: HTMLCompiler,
    copy_structure: copy_structure
  };

}).call(this);