fastladder/fastladder

/* LDR /subscribe/ */

ApiKey = document.querySelector('#ApiKey').dataset.apiKey;
LDR.API.StickyQuery = { ApiKey: ApiKey };
var LDReader = {};

LDReader.Folder = Class.create();
LDReader.Folder.create = function(name, callback){
    var api = new LDR.API("/api/folder/create");
    api.post({name:name},function(res){
        // if(res.isSuccess){callback()}
        callback();
    });
};



var ReaderSubscribe = Class.create();
ReaderSubscribe.extend({
    initialize: function(){

    },
    get_feedlinks: function(){
        return Array.filter(document.getElementsByTagName("input"),function(el){
            return el.name == "feedlink"
        }).map(function(el){return el.value});
    },
    get_baseurl : function(){
        return "http://" + location.host + "/subscribe/";
    },
    get_target_url: function(){
        return _$("target_url").value;
    },
    unsubscribe: function(subscribe_id, callback){
        var self = this;
        var url = this.get_target_url();
        var base = this.get_baseurl();
        var onload = function(){
            // location.href = base + url;
            location.href = location.href;
        }
        var api = new LDR.API("/api/feed/unsubscribe");
        api.post({subscribe_id:subscribe_id}, function(res){
            onload();
        });
    },
    subscribe: function(option, callback){
        var api = new LDR.API("/api/feed/subscribe");
        var param = {
            feedlink    : option.feedlink,
            rate            : option.rate,
            "public"    : option["public"]
        };
        if(option.folder_id != "0" && option.folder_id != 0){ param.folder_id = option.folder_id; }
        api.post(param, callback);
    },
    get_backurl: function(){
        var base = ReaderSubscribe.get_baseurl();
        // 無視するリファラ
        var ignore_list = ['http://member.livedoor.com/', base];
        var param = ReaderSubscribe.get_target_url();
        var feedlinks = ReaderSubscribe.get_feedlinks();
        var ref = document.referrer;
        if(ref && ignore_list.every(function(v){return ref.indexOf(v) == -1})){
            return ref;
        }
        if(feedlinks.indexOf(param) == -1){
            return param
        }
        return null
    }
});

ReaderSubscribe = new ReaderSubscribe;

function message(){

}

function subs_delete(e){
    var sid = this.id.replace(/.*?_/,"");
    Event.stop(e);
    this.setAttribute("disabled","disabled");
    this.className += " loading_button";
    ReaderSubscribe.unsubscribe(sid);
}


function subs_edit(e){
    var el = this;
    if(e){
        Event.stop(e);
    }
    if(_$("subs_edit_window")){
        subs_edit.hide();
        if(subs_edit.current_button == el){
            return
        }
    }

    subs_edit.current_button = el;
    addClass(el, "toggle-on");
    el.blur();
    var sid = this.getAttribute("rel").split(":")[1];
    if(!subs_edit.template){
        var retry = function(){subs_edit.call(el)};
        ajax([subs_edit.template_url, (new Date()).getTime()].join("?"), function(res){
            subs_edit.template = res;
            retry();
        });
        return;
    }
    var api = new LDR.API("/api/feed/subscribed");
    var tmpl = new Template(subs_edit.template).compile();
    var pos = Position.cumulativeOffset(el);
    var w = document.createElement("div");
    w.id = "subs_edit_window";
    with(w.style){
        position    = "absolute";
        border      = "1px solid #000";
        background  = "#fff";
        padding     = "10px";
        left = pos[0] + "px";
        top  = pos[1] + el.offsetHeight + 4 + "px";
        textAlign = "left";
        fontSize  = "80%";
        width     = "300px";
    }
    document.body.appendChild(w);
    api.post({subscribe_id:sid}, function(res){
        if(!res.subscribe_id){
            w.innerHTML = "登録されていません";
        } else {
            w.innerHTML = tmpl(res);
            (function() {
                var form = document.getElementById("subs_edit_form") || {};
                var rate_el = form.rate;
                if (!rate_el) {
                    return;
                }
                rate_el.value = res.rate;
                rate_el.style.display = "none";
                rate_el.parentNode.insertBefore(Rate.create(function(v) {
                    rate_el.value = v;
                }, res.rate), rate_el);
            })();
            Form.fill("subs_edit_form", res);
            ajaxize("subs_edit_form", function(){
                subs_edit.hide();
            });
            _$("subs_edit_folder").focus();
            update_folders(_$("subs_edit_folder"), {selected_id: res.folder_id});
        }
    });
}
subs_edit.template_url = "/contents/edit";
subs_edit.hide = function(){
    document.body.removeChild(_$("subs_edit_window"));
    removeClass(subs_edit.current_button, "toggle-on");
    return;
}


function folder_change(e){
    var el = this;
    if(this.selectedIndex == 1){
        var c = prompt('New Folder Name', "");
        if(!c){
            this.selectedIndex == 0;
            return;
        }
        LDReader.Folder.create(c, function(){
            // alert(folder_id)
            update_folders(el, {selected:c});
        })
    }
}

function update_folders(el, option){
    var selected_name = option.selected;
    var selected_id = option.selected_id;
    el.options.length = 0;
    el.options[0] = new Option('leave it uncategorized', "0");
    el.options[1] = new Option('create new folder', "-");
    var op = el.options;
    var api = new LDR.API("/api/folders");
    api.post({},function(folder){
        var name2id = folder.name2id;
        folder.names.forEach(function(name,i){
            op[i+2] = new Option(name, name2id[name]);
            if(name == selected_name || name2id[name] == selected_id){
                op[i+2].selected = "selected";
            }
        })
    })
}

function subscribe_submit(e){
    if(!this.history_back.checked) return;

    var form = this;
    var folder_id = this.folder_id.value;
    var rate = this.rate.value;
    var pub;
    if(this["public"]){
        Array.forEach(this["public"], function(el){
            if(el.checked){
                pub = el.value;
            }
        });
    }
    var links = [];
    var feedlink = form["feedlink"];
    var feedlink_checkbox = form["check_for_subscribe[]"];
    // multiple
    if(feedlink.length && feedlink_checkbox.length){
        Array.forEach(feedlink, function(el){
            Array.some(feedlink_checkbox, function(checkbox) {
                if (el.value === checkbox.value) {
                    return false;
                }
                return (feedlink_checkbox = checkbox)
            });
            (el.checked || (feedlink_checkbox && feedlink_checkbox.checked) ) && links.push(el.value);
        });
    } else {
        (feedlink.checked || (feedlink_checkbox && feedlink_checkbox.checked)) && links.push(feedlink.value);
    }
    if(!links.length) return;

    Event.stop(e);
    Array.forEach(this.elements, function(el){
        if(el.tagName == "INPUT" && el.type == "submit"){
            el.setAttribute("disabled","disabled");
            el.className += " loading_button";
        }
    });
    var task = links.length;
    var oncomplete = function(){
        task--;
        if(task == 0) history_back();
    }
    links.forEach(function(feedlink){
        var param = {
            feedlink   : feedlink,
            folder_id  : folder_id,
            rate       : rate,
            "public"   : pub
        };
        ReaderSubscribe.subscribe(param, oncomplete);
    });
    function history_back(){
        var url = ReaderSubscribe.get_backurl();
        if(url){
            location.href = url;
        }
    }
}
function try_back(errback, timeout){
    var back_success = false;
    Event.observe(window,"unload",function(){back_success=true});
    Event.observe(window,"beforeunload",function(){back_success=true});
    history.back();
    var callback;
    var jumped = 0;
    switch(typeof errback){
        case "function": callback = function(){errback()}; break;
        case "string"  : callback = function(){location.href=errback}; break;
        default : callback = function(){};
    }
    var force_timeout = function(fn,timeout){
        if(!back_success && !jumped){
            fn();
            jumped = 1;
        }
        if(timeout){
            setTimeout(function(){
                // alert("force_timeout");
                jumped || fn();
            }, timeout)
        }
    };
    setTimeout(function(){force_timeout(callback,timeout)}, 100);
    return back_success;
}

function update_checkbox(){
    var ul = _$("feed_candidates");
    if(!ul) return;
    Array.forEach(ul.getElementsByTagName("li"), function(el){
        var check = el.getElementsByTagName("input");
        Array.filter(check, function(el){
            return el.type == "checkbox"
        }).forEach(function(check){
            (check.checked) ? addClass(el, "selected") : removeClass(el, "selected");
        })
    })
}

function reverse_checkbox(el){
    var check = el.getElementsByTagName("input");
    Array.filter(check, function(el){
        return el.type == "checkbox"
    }).forEach(function(check){
        check.checked = !check.checked;
        if(check.checked){
            addClass(el, "selected");
        } else {
            removeClass(el, "selected");
        }
    })
}

//あとでui/rate.jsと一般化
var Rate = {};
Rate.create = function(callback, defaultRate){
    var el = $N("IMG",{
        src: Rate.pad_img(defaultRate || 0)
    });
    Event.observe(el, "mousemove", Rate.hover.bind(el));
    Event.observe(el, "mouseout", Rate.out.bind(el));
    Event.observe(el, "click", function(e){
        var value = Rate.click.call(el, e);
        callback(value);
    });
    return $N(
        "DIV",{
            style: {
                paddingTop: "2px",
                position  : "relative"
            }
        }, [ el ]
    );
};
Rate.debug = false;
Rate.image_path = "/img/rate/";
Rate.image_path_p = "/img/rate/pad/";
Rate.img = function(n){ return Rate.image_path + n + '.gif' };
Rate.pad_img = function(n){ return Rate.image_path_p + n + '.gif' };
Rate._calc_rate = function(e){
    var el = this;
    var img_w = el.offsetWidth;
    var cell = img_w / 6;
    var offsetX = !isNaN(e.offsetX) ? e.offsetX : e.layerX - el.offsetLeft;
    if(offsetX == 0) offsetX++;
    if(offsetX>img_w) offsetX = img_w;
    var rate = Math.ceil(offsetX/cell) - 1;
    if(Rate.debug){
        window.status = [img_w,cell,el.offsetLeft,e.layerX,offsetX];
    }
    return rate;
};
Rate.click = function(e){
    var el = this;
    var rate = Rate._calc_rate.call(this,e);
    el.src = Rate.image_path_p + rate + ".gif";
    el.setAttribute("orig_src",el.src);
    return rate;
};
Rate.out = function(e){
    var src;
    var el = this;
    if(src = el.getAttribute("orig_src")){
        el.src = src
    }
};
Rate.hover = function(e){
    var el = this;
    if(!el.getAttribute("orig_src")){
        el.setAttribute("orig_src",el.src);
    }
    var rate = Rate._calc_rate.call(this,e);
    el.src = Rate.image_path_p + rate + ".gif";
};

updater("history_back", function(){
    var el = this;
    var hide = function(){
        el.checked = false;
        el.style.display = "none";
        _$("label_"+el.id).style.display = "none";
    };
    var show = function(){
        el.checked = true;
        el.style.display = "inline";
        _$("label_"+el.id).style.display = "inline";
    }
    ReaderSubscribe.get_backurl() ? show() : hide();
});

function init(){
    var ClickEvent = new Trigger("click");
    ClickEvent.add("li", function(){
        reverse_checkbox(this);
    });
    ClickEvent.add("input[type=checkbox]", function(){
        update_checkbox();
    });
    ClickEvent.apply();
    var form = document.forms[1] || document.forms["subscribe"];
    var rate_el = form.rate;
    if(rate_el){
        rate_el.style.display = "none";
        var set_rate = function(v){
            rate_el.value = v;
        };
        rate_el.parentNode.insertBefore(Rate.create(set_rate), rate_el);
    }
    update_checkbox();
    _$("history_back") && update("history_back");
    if(_$("subscribe_container")){
        round_corner("subscribe_container");
    }
}
function round_corner(el){
    el = _$(el);
    var browser = new BrowserDetect;
    if(browser.isFirefox){
        setStyle(el, {"-moz-border-radius" : "5px"});
        return;
    }
    var bar_style = {position:"relative",textAlign:"left"};
    function dot_style(o){
        var base = {
            position:"absolute",display:"block",color:"#fff",
            width:"5px",height:"5px",fontSize:"1px",
            backgroundRepeat:"no-repeat"
        };
        return Object.extend(base, o);
    }
    function create_corner(style){
        return $N("SPAN", {style:dot_style(style)});
    }
    var top_left = create_corner({
        top:"0px",left:"0px",backgroundImage:"url(/img/corner/top-left.gif)"
    })
    var top_right = create_corner({
        top:"0px",right:"-1px",backgroundImage:"url(/img/corner/top-right.gif)"
    });
    var bottom_left = create_corner({
        top:"-5px",left:"0px",backgroundImage:"url(/img/corner/bottom-left.gif)"
    });
    var bottom_right = create_corner({
        top:"-5px",right:"-1px",backgroundImage:"url(/img/corner/bottom-right.gif)"
    });
    var top = $N("DIV",{style:bar_style},[top_left,top_right]);
    var bottom = $N("DIV",{style:bar_style},[bottom_left,bottom_right]);
    el.insertBefore(top,el.firstChild);
    el.appendChild(bottom);
}


/*
 Ajax and Ahah
*/
function ajax(url, onload){
    x= new _XMLHttpRequest;
    x.onload = function(){
        var res = ajax.filter(x.responseText)
        onload(res)
    }
    x.open("GET",url,true);
    x.send("");
}
ajax.filter = new Pipe;
var browser = new BrowserDetect;
if(browser.isKHTML){
    ajax.filter.add(function(t){
        var esc = escape(t);
        return(esc.indexOf("%u") < 0 && esc.indexOf("%") > -1) ? decodeURIComponent(esc) : t
    })
}

function Pipe(label){
    var q = [];
    Pipe["_" + label] = q;
    var f = function(arg){
        var result = arg;
        foreach(q,function(v,i){
            result = v(result)
        })
        return result;
    };
    f.add = function(task){q.push(task)}
    return f;
}
Pipe.get = function(label){
    return Pipe["_" + label];
}

function ajaxize(element, callback){
    element = _$(element);
    var method = element.method;
    var action = element.getAttribute("action");
    // ひとつの場合は完了時処理
    if(isFunction(callback)){
        var before = True;
        var after  = callback
    } else {
        var before = callback.before || True;
        var after  = callback.after  || Function.empty;
    }
    var onsubmit = function(e){
        if(e) Event.stop(e);
        var request = Form.toJson(element);
        if(before(request)){
            var api = new LDR.API(action);
            api.onload = function(response){
                after(response,request);
            }
            api.post(request);
        }
    };
    addEvent(element, "submit", onsubmit);
    element.submit = onsubmit;
}