forked from CIT/Vmeda.Online
89 lines
3.5 KiB
TypeScript
89 lines
3.5 KiB
TypeScript
// (C) Copyright 2015 Martin Dougiamas
|
|
//
|
|
// 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.
|
|
|
|
import { Injectable } from '@angular/core';
|
|
import * as moment from 'moment';
|
|
import AddonModChatMessageWithUserData from './chat';
|
|
|
|
/**
|
|
* Helper service that provides some features for quiz.
|
|
*/
|
|
@Injectable()
|
|
export class AddonModChatHelperProvider {
|
|
|
|
/**
|
|
* Give some format info about messages.
|
|
*
|
|
* @param currentUserId User Id.
|
|
* @param message Message in a discussion.
|
|
* @param prevMessage Previous Message in a discussion (if any).
|
|
* @return Message with additional info.
|
|
*/
|
|
formatMessage(currentUserId: number, message: AddonModChatMessageWithUserData, prevMessage?: any): any {
|
|
message.showDate = this.showDate(message, prevMessage);
|
|
message.beep = message.message.substr(0, 5) == 'beep ' && message.message.substr(5).trim();
|
|
|
|
message.special = message.issystem || message.system || !!message.beep;
|
|
|
|
if (message.message.substr(0, 4) == '/me ') {
|
|
message.special = true;
|
|
message.message = message.message.substr(4).trim();
|
|
}
|
|
|
|
message.showUserData = this.showUserData(currentUserId, message, prevMessage);
|
|
prevMessage ?
|
|
prevMessage.showTail = this.showTail(prevMessage, message) : null;
|
|
}
|
|
|
|
/**
|
|
* Check if the user info should be displayed for the current message.
|
|
* User data is only displayed if the previous message was from another user.
|
|
*
|
|
* @param message Current message where to show the user info.
|
|
* @param prevMessage Previous message.
|
|
* @return Whether user data should be shown.
|
|
*/
|
|
protected showUserData(currentUserId: number, message: any, prevMessage?: any): boolean {
|
|
return message.userid != currentUserId &&
|
|
(!prevMessage || prevMessage.userid != message.userid || message.showDate || prevMessage.special);
|
|
}
|
|
|
|
/**
|
|
* Check if a css tail should be shown.
|
|
*
|
|
* @param message Current message where to show the user info.
|
|
* @param nextMessage Next message.
|
|
* @return Whether user data should be shown.
|
|
*/
|
|
protected showTail(message: AddonModChatMessageWithUserData, nextMessage?: AddonModChatMessageWithUserData): boolean {
|
|
return !nextMessage || nextMessage.userid != message.userid || nextMessage.showDate || nextMessage.special;
|
|
}
|
|
|
|
/**
|
|
* Check if the date should be displayed between messages (when the day changes at midnight for example).
|
|
*
|
|
* @param message New message object.
|
|
* @param prevMessage Previous message object.
|
|
* @return True if messages are from diferent days, false othetwise.
|
|
*/
|
|
protected showDate(message: AddonModChatMessageWithUserData, prevMessage: AddonModChatMessageWithUserData): boolean {
|
|
if (!prevMessage) {
|
|
return true;
|
|
}
|
|
|
|
// Check if day has changed.
|
|
return !moment(message.timestamp * 1000).isSame(prevMessage.timestamp * 1000, 'day');
|
|
}
|
|
}
|