ngx-tencent-im
Version:
Instant messaging for Angular.
122 lines • 22.6 kB
JavaScript
import { Component, ViewChild } from '@angular/core';
import { conversationSelector, currentConversationSelector } from '../../store/selectors';
import { ChangeDetectionStrategy } from '@angular/core';
import { showAction } from '../../store/actions';
import { MESSAGE_STATUS, TIM } from '../../shared.data';
import * as i0 from "@angular/core";
import * as i1 from "@ngrx/store";
import * as i2 from "../../tim-helper.service";
import * as i3 from "../../message/message-item/message-item.component";
import * as i4 from "../../message/message-send-box/message-send-box.component";
import * as i5 from "@angular/common";
export class CurrentConversationComponent {
constructor(store, cd, timHelperService) {
this.store = store;
this.cd = cd;
this.timHelperService = timHelperService;
this.currentMessageList = [];
this.isShowScrollBottomTips = false;
this.isCompleted = false;
this.preScrollHeight = 0;
}
get showCurrentConversation() {
return !!this.currentConversation?.conversationID;
}
get showMessageSendBox() {
return (this.currentConversation.type !== TIM.TYPES.CONV_SYSTEM);
}
ngOnInit() {
// 获取当前会话
this.currentConversationSubscription = this.store.select(currentConversationSelector).subscribe(res => {
this.currentConversation = res;
this.preScrollHeight = 0;
this.cd.markForCheck();
});
this.conversationSubscription = this.store.select(conversationSelector)
.subscribe(res => {
this.currentMessageList = res.currentMessageList;
this.isCompleted = res.isCompleted;
if (res.currentMessageList && res.currentMessageList.length > 0) {
if (this.currentConversation.conversationID) {
this.keepMessageListOnBottom();
this.timHelperService.tim.setMessageRead({ conversationID: this.currentConversation.conversationID });
}
}
this.cd.markForCheck();
}, err => {
this.store.dispatch(showAction({ msgType: MESSAGE_STATUS.error, message: err.message }));
});
this.eventBusSubscription = this.timHelperService.eventBus$
.subscribe((res) => {
if (res === 'scroll-bottom') {
this.scrollMessageListToBottom();
this.cd.markForCheck();
}
});
}
ngAfterViewInit() {
this.keepMessageListOnBottom();
}
getMore() {
this.timHelperService.getMessageList(this.currentConversation.conversationID);
}
onscroll({ target: { scrollTop } }) {
const messageListNode = this.messageListRef?.nativeElement;
if (!messageListNode) {
return;
}
if (this.preScrollHeight - messageListNode.clientHeight - scrollTop < 20) {
this.isShowScrollBottomTips = false;
}
}
scrollMessageListToBottom() {
const messageListNode = this.messageListRef?.nativeElement;
if (!messageListNode) {
return;
}
setTimeout(() => {
messageListNode.scrollTop = messageListNode.scrollHeight;
this.preScrollHeight = messageListNode.scrollHeight;
this.isShowScrollBottomTips = false;
}, 0);
}
// 如果滚到底部就保持在底部,否则提示是否要滚到底部
keepMessageListOnBottom() {
const messageListNode = this.messageListRef?.nativeElement;
if (!messageListNode) {
return;
}
setTimeout(() => {
// 距离底部20px内强制滚到底部,否则提示有新消息
if (this.preScrollHeight - messageListNode.clientHeight - messageListNode.scrollTop < 20) {
messageListNode.scrollTop = messageListNode.scrollHeight;
this.isShowScrollBottomTips = false;
}
else {
this.isShowScrollBottomTips = true;
}
this.preScrollHeight = messageListNode.scrollHeight;
}, 0);
}
ngOnDestroy() {
[
this.eventBusSubscription,
this.conversationSubscription,
this.currentConversationSubscription
].forEach(item => {
if (item) {
item.unsubscribe();
}
});
}
}
CurrentConversationComponent.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "13.3.8", ngImport: i0, type: CurrentConversationComponent, deps: [{ token: i1.Store }, { token: i0.ChangeDetectorRef }, { token: i2.TimHelperService }], target: i0.ɵɵFactoryTarget.Component });
CurrentConversationComponent.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "12.0.0", version: "13.3.8", type: CurrentConversationComponent, selector: "app-current-conversation", viewQueries: [{ propertyName: "messageListRef", first: true, predicate: ["messageList"], descendants: true }], ngImport: i0, template: "<div class=\"current-conversation-wrapper\">\r\n <div class=\"current-conversation\" *ngIf=\"showCurrentConversation\" (scroll)=\"onscroll($event)\">\r\n <div class=\"content\">\r\n <div class=\"message-list\" #messageList (scroll)=\"onscroll($event)\">\r\n <div class=\"more\" *ngIf=\"!isCompleted\">\r\n <a (click)=\"getMore()\">\u67E5\u770B\u66F4\u591A</a>\r\n </div>\r\n <div class=\"no-more\" *ngIf=\"isCompleted\">\u6CA1\u6709\u66F4\u591A\u4E86</div>\r\n <app-message-item *ngFor=\"let message of currentMessageList\" [message]=\"message\"\r\n [currentConversation]=\"currentConversation\">\r\n </app-message-item>\r\n </div>\r\n <div class=\"newMessageTips\" *ngIf=\"isShowScrollBottomTips\"\r\n (click)=\"scrollMessageListToBottom()\">\u56DE\u5230\u6700\u65B0\u4F4D\u7F6E</div>\r\n </div>\r\n <div class=\"footer\" *ngIf=\"showMessageSendBox\">\r\n <app-message-send-box></app-message-send-box>\r\n </div>\r\n </div>\r\n</div>\r\n", styles: [".current-conversation-wrapper{background-color:#f5f5f5;color:#1c2438;display:flex;height:75vh}.current-conversation-wrapper .current-conversation{display:flex;flex-direction:column;width:100%}.current-conversation-wrapper .more{display:flex;justify-content:center;font-size:12px}.current-conversation-wrapper .no-more{display:flex;justify-content:center;color:#a5b5c1;font-size:12px;padding:10px}.content{display:flex;flex:1;flex-direction:column;overflow:hidden;position:relative}.content .message-list{width:100%;box-sizing:border-box;overflow-y:scroll;padding:0 20px}.content .newMessageTips{position:absolute;cursor:pointer;padding:5px;width:120px;margin:auto;left:0;right:0;bottom:5px;font-size:12px;text-align:center;border-radius:10px;border:#e9eaec 1px solid;background-color:#fff;color:#2d8cf0}.footer{border-top:1px solid #e7e7e7}\n"], components: [{ type: i3.MessageItemComponent, selector: "app-message-item", inputs: ["currentConversation", "message"] }, { type: i4.MessageSendBoxComponent, selector: "app-message-send-box" }], directives: [{ type: i5.NgIf, selector: "[ngIf]", inputs: ["ngIf", "ngIfThen", "ngIfElse"] }, { type: i5.NgForOf, selector: "[ngFor][ngForOf]", inputs: ["ngForOf", "ngForTrackBy", "ngForTemplate"] }], changeDetection: i0.ChangeDetectionStrategy.OnPush });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "13.3.8", ngImport: i0, type: CurrentConversationComponent, decorators: [{
type: Component,
args: [{ selector: 'app-current-conversation', changeDetection: ChangeDetectionStrategy.OnPush, template: "<div class=\"current-conversation-wrapper\">\r\n <div class=\"current-conversation\" *ngIf=\"showCurrentConversation\" (scroll)=\"onscroll($event)\">\r\n <div class=\"content\">\r\n <div class=\"message-list\" #messageList (scroll)=\"onscroll($event)\">\r\n <div class=\"more\" *ngIf=\"!isCompleted\">\r\n <a (click)=\"getMore()\">\u67E5\u770B\u66F4\u591A</a>\r\n </div>\r\n <div class=\"no-more\" *ngIf=\"isCompleted\">\u6CA1\u6709\u66F4\u591A\u4E86</div>\r\n <app-message-item *ngFor=\"let message of currentMessageList\" [message]=\"message\"\r\n [currentConversation]=\"currentConversation\">\r\n </app-message-item>\r\n </div>\r\n <div class=\"newMessageTips\" *ngIf=\"isShowScrollBottomTips\"\r\n (click)=\"scrollMessageListToBottom()\">\u56DE\u5230\u6700\u65B0\u4F4D\u7F6E</div>\r\n </div>\r\n <div class=\"footer\" *ngIf=\"showMessageSendBox\">\r\n <app-message-send-box></app-message-send-box>\r\n </div>\r\n </div>\r\n</div>\r\n", styles: [".current-conversation-wrapper{background-color:#f5f5f5;color:#1c2438;display:flex;height:75vh}.current-conversation-wrapper .current-conversation{display:flex;flex-direction:column;width:100%}.current-conversation-wrapper .more{display:flex;justify-content:center;font-size:12px}.current-conversation-wrapper .no-more{display:flex;justify-content:center;color:#a5b5c1;font-size:12px;padding:10px}.content{display:flex;flex:1;flex-direction:column;overflow:hidden;position:relative}.content .message-list{width:100%;box-sizing:border-box;overflow-y:scroll;padding:0 20px}.content .newMessageTips{position:absolute;cursor:pointer;padding:5px;width:120px;margin:auto;left:0;right:0;bottom:5px;font-size:12px;text-align:center;border-radius:10px;border:#e9eaec 1px solid;background-color:#fff;color:#2d8cf0}.footer{border-top:1px solid #e7e7e7}\n"] }]
}], ctorParameters: function () { return [{ type: i1.Store }, { type: i0.ChangeDetectorRef }, { type: i2.TimHelperService }]; }, propDecorators: { messageListRef: [{
type: ViewChild,
args: ['messageList', { static: false }]
}] } });
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{\n  AfterViewInit,\n  ChangeDetectorRef,\n  Component,\n  ElementRef,\n  OnDestroy,\n  OnInit,\n  ViewChild\n} from '@angular/core';\n\nimport { Store } from '@ngrx/store';\nimport { Subscription } from 'rxjs';\n\nimport { Conversation } from 'tim-js-sdk';\nimport { conversationSelector, currentConversationSelector } from '../../store/selectors';\nimport { TimHelperService } from '../../tim-helper.service';\nimport { ChangeDetectionStrategy } from '@angular/core';\nimport { showAction } from '../../store/actions';\nimport { MESSAGE_STATUS, TIM } from '../../shared.data';\n\n\n@Component({\n  selector: 'app-current-conversation',\n  templateUrl: './current-conversation.component.html',\n  styleUrls: ['./current-conversation.component.less'],\n  changeDetection: ChangeDetectionStrategy.OnPush\n})\nexport class CurrentConversationComponent implements OnInit, AfterViewInit, OnDestroy {\n  currentConversation: Conversation;\n  currentMessageList = [];\n  isShowScrollBottomTips = false;\n  isCompleted = false;\n  preScrollHeight = 0;\n  name: string;\n  toAccount: string;\n\n  eventBusSubscription: Subscription;\n  conversationSubscription: Subscription;\n  currentConversationSubscription: Subscription;\n\n  get showCurrentConversation() {\n    return !!this.currentConversation?.conversationID;\n  }\n\n  get showMessageSendBox() {\n    return (this.currentConversation.type !== TIM.TYPES.CONV_SYSTEM);\n  }\n\n  @ViewChild('messageList', { static: false }) messageListRef: ElementRef;\n\n  constructor(\n    private store: Store,\n    private cd: ChangeDetectorRef,\n    private timHelperService: TimHelperService,\n  ) { }\n\n  ngOnInit(): void {\n    // 获取当前会话\n    this.currentConversationSubscription = this.store.select(currentConversationSelector).subscribe(res => {\n      this.currentConversation = res;\n      this.preScrollHeight = 0;\n      this.cd.markForCheck();\n    });\n\n    this.conversationSubscription = this.store.select(conversationSelector)\n      .subscribe(res => {\n        this.currentMessageList = res.currentMessageList;\n        this.isCompleted = res.isCompleted;\n        if (res.currentMessageList && res.currentMessageList.length > 0) {\n          if (this.currentConversation.conversationID) {\n            this.keepMessageListOnBottom();\n            this.timHelperService.tim.setMessageRead({ conversationID: this.currentConversation.conversationID });\n          }\n        }\n        this.cd.markForCheck();\n      }, err => {\n        this.store.dispatch(\n          showAction({ msgType: MESSAGE_STATUS.error, message: err.message })\n        );\n      });\n\n    this.eventBusSubscription = this.timHelperService.eventBus$\n      .subscribe((res: string) => {\n        if (res === 'scroll-bottom') {\n          this.scrollMessageListToBottom();\n          this.cd.markForCheck();\n        }\n      });\n  }\n\n  ngAfterViewInit(): void {\n    this.keepMessageListOnBottom();\n  }\n\n  getMore() {\n    this.timHelperService.getMessageList(this.currentConversation.conversationID);\n  }\n\n  onscroll({ target: { scrollTop } }) {\n    const messageListNode = this.messageListRef?.nativeElement;\n\n    if (!messageListNode) {\n      return;\n    }\n    if (this.preScrollHeight - messageListNode.clientHeight - scrollTop < 20) {\n      this.isShowScrollBottomTips = false;\n    }\n  }\n\n  scrollMessageListToBottom() {\n    const messageListNode = this.messageListRef?.nativeElement;\n    if (!messageListNode) {\n      return;\n    }\n\n    setTimeout(() => {\n      messageListNode.scrollTop = messageListNode.scrollHeight;\n      this.preScrollHeight = messageListNode.scrollHeight;\n      this.isShowScrollBottomTips = false;\n    }, 0);\n\n  }\n\n  // 如果滚到底部就保持在底部，否则提示是否要滚到底部\n  keepMessageListOnBottom() {\n    const messageListNode = this.messageListRef?.nativeElement;\n    if (!messageListNode) {\n      return;\n    }\n\n    setTimeout(() => {\n      // 距离底部20px内强制滚到底部,否则提示有新消息\n      if (this.preScrollHeight - messageListNode.clientHeight - messageListNode.scrollTop < 20) {\n        messageListNode.scrollTop = messageListNode.scrollHeight;\n        this.isShowScrollBottomTips = false;\n      } else {\n        this.isShowScrollBottomTips = true;\n      }\n      this.preScrollHeight = messageListNode.scrollHeight;\n    }, 0);\n\n  }\n\n  ngOnDestroy(): void {\n    [\n      this.eventBusSubscription,\n      this.conversationSubscription,\n      this.currentConversationSubscription\n    ].forEach(item => {\n      if (item) {\n        item.unsubscribe();\n      }\n    });\n  }\n}\n","<div class=\"current-conversation-wrapper\">\r\n  <div class=\"current-conversation\" *ngIf=\"showCurrentConversation\" (scroll)=\"onscroll($event)\">\r\n    <div class=\"content\">\r\n      <div class=\"message-list\" #messageList (scroll)=\"onscroll($event)\">\r\n        <div class=\"more\" *ngIf=\"!isCompleted\">\r\n          <a (click)=\"getMore()\">查看更多</a>\r\n        </div>\r\n        <div class=\"no-more\" *ngIf=\"isCompleted\">没有更多了</div>\r\n        <app-message-item *ngFor=\"let message of currentMessageList\" [message]=\"message\"\r\n          [currentConversation]=\"currentConversation\">\r\n        </app-message-item>\r\n      </div>\r\n      <div class=\"newMessageTips\" *ngIf=\"isShowScrollBottomTips\"\r\n        (click)=\"scrollMessageListToBottom()\">回到最新位置</div>\r\n    </div>\r\n    <div class=\"footer\" *ngIf=\"showMessageSendBox\">\r\n      <app-message-send-box></app-message-send-box>\r\n    </div>\r\n  </div>\r\n</div>\r\n"]}