qcminecraft/Carbon-Forum-F

/*
 * Carbon-Forum-F
 * https://github.com/lincanbin/Carbon-Forum
 *
 * Copyright 2006-2017 Canbin Lin (lincanbin@hotmail.com)
 * http://www.94cb.com/
 *
 * Licensed under the Apache License, Version 2.0:
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * A high performance open-source forum software written in PHP. 
 */

/*
//编辑框自适应高度
document.getElementById("Content").onkeyup = function(e) {
    document.getElementById("Content").style.height = (parseInt(document.getElementById("Content").scrollHeight) + 2) + "px";
};
*/
//提交前的检查
function CreateNewTopic() {
    if (!document.NewForm.Title.value.length) {
        CarbonAlert(Lang['Title_Can_Not_Be_Empty']);
        document.NewForm.Title.focus();
        return false;
    } else if (document.NewForm.Title.value.replace(/[^\x00-\xff]/g, "***").length > MaxTitleChars) {
        CarbonAlert(Lang['Title_Too_Long'].replace("{{MaxTitleChars}}", MaxTitleChars).replace("{{Current_Title_Length}}", document.NewForm.Title.value.replace(/[^\x00-\xff]/g, "***").length));
        document.NewForm.Title.focus();
        return false;
    } else if (AllowEmptyTags === false && $("#SelectTags li").length <= 1) {
        if ($("#AlternativeTag").val().length != 0) {
            AddTag($("#AlternativeTag").val(), Math.round(new Date().getTime() / 1000));
        }else{
            CarbonAlert(Lang['Tags_Empty']);
            document.NewForm.AlternativeTag.focus();
            return false;
        }
    } else {
        $.afui.toast(Lang['Submitting']);
        $("#PublishButton").val(Lang['Submitting']);
        var MarkdownConverter = new showdown.Converter(),
        Content = MarkdownConverter.makeHtml($("#Content").val());
        $.ajax({
            url: WebsitePath + '/new',
            data: {
                FormHash: document.NewForm.FormHash.value,
                Title: document.NewForm.Title.value,
                geetest_challenge: $(" input[ name='geetest_challenge' ] ").val(),
                geetest_validate: $(" input[ name='geetest_validate' ] ").val(),
                geetest_seccode: $(" input[ name='geetest_seccode' ] ").val(),
                Content: Content,
                Tag: $("input[name='Tag[]']").map(function() {
                    return $(this).val();
                }).get()
            },
            type: 'post',
            dataType: 'json',
            success: function(data) {
                //TODO: 隐藏Toast
                if (data.Status == 1) {
                    $("#PublishButton").val(Lang['Submit_Success']);
                    $.afui.loadContent(
                        WebsitePath + "/t/" + data.TopicID, 
                        false, 
                        false, 
                        "slide",
                        document.getElementById('mainview')
                    );
                } else {
                    CarbonAlert(data.ErrorMessage);
                }
            },
            error: function() {
                CarbonAlert(Lang['Submit_Failure']);
                $("#PublishButton").val(Lang['Submit_Again']);
            }
        });
    }
    return true;
}

function CheckTag(TagName, IsAdd) {
    TagName = $.trim(TagName);
    var show = true;
    var i = 1;
    $("input[name='Tag[]']").each(function(index) {
        if (IsAdd && i >= MaxTagNum) {
            CarbonAlert(Lang['Tags_Too_Much'].replace("{{MaxTagNum}}", MaxTagNum));
            show = false;
        }
        if (TagName == $(this).val() || TagName == '') {
            show = false;
        }
        //简单的前端过滤，后端有更严格的白名单过滤所以这里随便写个正则应付下了。
        if (TagName.match(/[&|<|>|"|']/g) != null) {
            //alert('Invalid input! ')
            show = false;
        }
        i++;
    });
    return show;
}

function GetTags() {
    var CurrentContentHash = md5(document.NewForm.Title.value + document.NewForm.Content.value);
    //取Title与Content 联合Hash值，与之前input的内容比较，不同则开始获取话题，随后保存进hidden input。
    if (CurrentContentHash != document.NewForm.ContentHash.value) {
        if (document.NewForm.Title.value.length || document.NewForm.Content.value.length) {
            $.ajax({
                url: WebsitePath + '/json/get_tags',
                data: {
                    Title: document.NewForm.Title.value,
                    Content: document.NewForm.Content.value
                },
                type: 'post',
                dataType: 'json',
                success: function(data) {
                    if (data.status) {
                        $("#TagsList").html('');
                        for (var i = 0; i < data.lists.length; i++) {
                            if (CheckTag(data.lists[i], 0)) {
                                TagsListAppend(data.lists[i], i);
                            }
                        }
                    }
                }
            });
        }
        document.NewForm.ContentHash.value = CurrentContentHash;
    }
}

function TagsListAppend(TagName, id) {
    $("#TagsList").append('<a class="button" onclick="javascript:AddTag(\'' + TagName + '\',' + id + ');" id="TagsList' + id + '">' + TagName + '<span style="float:right;">+&nbsp;&nbsp;</span></a>&nbsp;');
    //document.NewForm.AlternativeTag.focus();
}

function AddTag(TagName, id) {
    if (CheckTag(TagName, 1)) {
        $("#SelectTags").append('<li id="Tag' + id + '"><a onclick="javascript:TagRemove(\'' + TagName + '\',' + id + ');">' + TagName + '<span style="float:right;">×&nbsp;&nbsp;</span><input type="hidden" name="Tag[]" value="' + TagName + '" /></a></li>');
        $("#TagsList" + id).remove();
    }
    //document.NewForm.AlternativeTag.focus();
    $("#AlternativeTag").val("");
    if ($("input[name='Tag[]']").length == MaxTagNum) {
        $("#AlternativeTag").attr("disabled", true);
        $("#AlternativeTag").attr("placeholder", Lang['Tags_Too_Much'].replace("{{MaxTagNum}}", MaxTagNum));
    }
}

$(function() {
    $("#AlternativeTag").keydown(function(e) {
        var e = e || event;
        switch (e.keyCode) {
        case 13:
            if ($("#AlternativeTag").val().length != 0) {
                AddTag($("#AlternativeTag").val(), Math.round(new Date().getTime() / 1000));
            }
            break;
        default:
            return true;
        }
    });
});

function TagRemove(TagName, id) {
    $("#Tag" + id).remove();
    TagsListAppend(TagName, id);
    if ($("input[name='Tag[]']").length < MaxTagNum) {
        $("#AlternativeTag").attr("disabled", false);
        $("#AlternativeTag").attr("placeholder", Lang['Add_Tags']);
    }
    document.NewForm.AlternativeTag.focus();
}