landers.base/src/helpers.js

landers.base

; (function (window, $, Landers) {
    Landers = Landers || {};
    Landers.helpers = {
        loadmod_call:function(mod, call){
            if (!call) return;
            if (Landers.utils.is_string(call)) mod[call].call(mod);
            else if (Landers.utils.is_fun(call)) call.call(mod);
        },
        parse_args:function(args, maps){
            var ret = {}, enums; maps = maps || {};
            //找出enum项
            for(var k in maps) {
                var arr = k.match(/^__ENUM:(.*)$/);
                if (arr) {
                    enums = enums || {};
                    enums[k] = eval('(' + arr[1] + ')');
                }
            }
            for (var i=0; i<args.length; i++) {
                var type = Landers.utils.type(args[i]);
                if (type == 'jQuery') type = 'jobject';
                if (enums && (type == 'string' || type == 'number')) {
                    var tmp = false;
                    for (var j in enums) {
                        if (Landers.utils.arr.is_in(args[i], enums[j])) {
                            ret[maps[j]] = args[i];
                            delete enums[j];
                            tmp = true;
                        }
                    }
                    if (tmp) continue;
                }
                if (maps[type]) {
                    ret[maps[type]] = args[i];
                } else {
                    ret[type] = args[i];
                }
            };
            return ret;
        },
        parseArgs: function(args, maps){
            return this.parse_args(args, maps);
        },
        debug : function(xvar){
            if (Landers.env.config.debug) {
                console.log(xvar);
                alert(xvar);
            }
        },
        throttle : function(seconds){
            var last;
            this.getTime = function(){
                return (new Date()).getTime();
            };
            this.check = function(){
                if ( this.getTime() - last >= seconds * 1000 || !last) {
                    last = this.getTime();
                    return true;
                } else {
                    return false;
                }
            };
        },
        eventstop:function(e){
            if (e && e.stopPropagation) {
                e.stopPropagation();
            } else if (window.event) {
                window.event.cancelBubble = true;
            }
        },
        reload:function(){
            setTimeout(function(){
                document.location.reload();
            }, 200);
        },
        noimg:function(oimg, is_bg, src){
            var path = Landers.env.path.ui.img;
            var def_bg = path + 'noimg.jpg', $o = $(oimg);
            oimg.src = src || $o.attr('nosrc') || path + 'spacer.gif';
            if (is_bg) $o.css('background', 'url('+def_bg+') center'); oimg.onload = null;
        },
        noavatar:function(oimg){
            oimg.src = Landers.env.path.ui.img + 'noavatar_middle.gif';
        },
        gotop:function(callback){
            var $o = $('html body');
            $o.animate({
                scrollTop: 0
            }, {
                easing: 'easeOutExpo',
                duration: $o.scrollTop() * 0.5 ,
                complete: callback
            });
        },
        disable : function($o) {
            return $o.prop('disabled', true).addClass('disabled');
        },
        enable : function($o) {
            return $o.prop('disabled', false).removeClass('disabled');
        },
        countdown : {
            _countdown: function(seconds, callback_run, callback_stop){
                var that = this;
                var is_stop = false;
                this.start = this.run = function(){
                    if(seconds >= 0 && !is_stop){
                        setTimeout(function(){
                            callback_run(seconds--);
                            that.run(seconds, callback_run, callback_stop);
                        }, 1000);
                    } else {
                        callback_stop();
                    }
                    return this;
                };
                this.stop = function(){
                    is_stop = true;
                    callback_stop();
                    return this;
                };
            },
            make : function(seconds, callback_run, callback_stop){
                return new this._countdown(seconds, callback_run, callback_stop);
            },
            show: function($elem, seconds, callback_run, callback_stop){
                $elem.prop('disabled', true).addClass('disabled');
                var content = $elem.attr('data-countdown-content');
                var backup = $elem.html();

                return this.make(seconds, function(seconds){
                    $elem.html(content.replace('%s', seconds));
                }, function(){
                    $elem.html(backup)
                        .prop('disabled', false)
                        .removeClass('disabled');

                    callback_stop && callback_stop();
                }).run();
            },
            sms : function($elem, seconds, callback_stop){
                $elem.attr('data-countdown-content', '%s 秒后可再次发送');
                this.show($elem, seconds, null, callback_stop);
            }
        },
        parseErrors: function(errors){
            var results = [];
            for (var key in errors) {
                results.push(errors[key][0]);
            }
            return results;
        }
    };
    $.extend(Landers, Landers.helpers);
})(this, jQuery, Landers);