From e42a698df55615e50f71387ed71d5a3dd710eb88 Mon Sep 17 00:00:00 2001
From: Richard Park <richard.park@loafle.com>
Date: Fri, 25 Oct 2019 15:56:03 +0900
Subject: [PATCH] backdrop of context menu is removed

---
 .../left-sidenav/chat.component.html          |   6 +-
 .../left-sidenav/group.component.html         |  14 +-
 .../components/messages.component.html        |   6 +-
 .../lib/directives/click-outside.directive.ts | 226 ++++++++++++++++++
 .../src/lib/ucap-ui.module.ts                 |   7 +-
 .../ucap-webmessenger-ui/src/public-api.ts    |   1 +
 6 files changed, 255 insertions(+), 5 deletions(-)
 create mode 100644 projects/ucap-webmessenger-ui/src/lib/directives/click-outside.directive.ts

diff --git a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/chat.component.html b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/chat.component.html
index adbd916f..f8990ec3 100644
--- a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/chat.component.html
+++ b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/chat.component.html
@@ -40,7 +40,11 @@
   #chatContextMenuTrigger="matMenuTrigger"
   [matMenuTriggerFor]="chatContextMenu"
 ></div>
-<mat-menu #chatContextMenu="matMenu" [hasBackdrop]="false">
+<mat-menu
+  #chatContextMenu="matMenu"
+  [hasBackdrop]="false"
+  (ucapUiClickOutside)="chatContextMenuTrigger.closeMenu()"
+>
   <ng-template matMenuContent let-roomInfo="roomInfo">
     <button mat-menu-item (click)="onSelectedRoom(roomInfo)">
       대화방 열기
diff --git a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/group.component.html b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/group.component.html
index f57dbcc0..b7a2f1bb 100644
--- a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/group.component.html
+++ b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/left-sidenav/group.component.html
@@ -8,8 +8,10 @@
         </button>
         <button
           mat-icon-button
+          #groupMenuTrigger="matMenuTrigger"
           [matMenuTriggerFor]="groupMenu"
           aria-label="group menu"
+          (ucapUiClickOutside)="groupMenuTrigger.closeMenu()"
         >
           <mat-icon>more_vert</mat-icon>
         </button>
@@ -92,7 +94,11 @@
   #profileContextMenuTrigger="matMenuTrigger"
   [matMenuTriggerFor]="profileContextMenu"
 ></div>
-<mat-menu #profileContextMenu="matMenu" [hasBackdrop]="false">
+<mat-menu
+  #profileContextMenu="matMenu"
+  [hasBackdrop]="false"
+  (ucapUiClickOutside)="profileContextMenuTrigger.closeMenu()"
+>
   <ng-template matMenuContent let-userInfo="userInfo">
     <button
       mat-menu-item
@@ -155,7 +161,11 @@
   #groupContextMenuTrigger="matMenuTrigger"
   [matMenuTriggerFor]="groupContextMenu"
 ></div>
-<mat-menu #groupContextMenu="matMenu" [hasBackdrop]="false">
+<mat-menu
+  #groupContextMenu="matMenu"
+  [hasBackdrop]="false"
+  (ucapUiClickOutside)="groupContextMenuTrigger.closeMenu()"
+>
   <ng-template matMenuContent let-group="group">
     <button mat-menu-item (click)="onClickGroupContextMenu('CHAT', group)">
       그룹 대화하기
diff --git a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/messages.component.html b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/messages.component.html
index f9d99a35..066d70ac 100644
--- a/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/messages.component.html
+++ b/projects/ucap-webmessenger-app/src/app/layouts/messenger/components/messages.component.html
@@ -113,7 +113,11 @@
   #messageContextMenuTrigger="matMenuTrigger"
   [matMenuTriggerFor]="messageContextMenu"
 ></div>
-<mat-menu #messageContextMenu="matMenu" [hasBackdrop]="false">
+<mat-menu
+  #messageContextMenu="matMenu"
+  [hasBackdrop]="false"
+  (ucapUiClickOutside)="messageContextMenuTrigger.closeMenu()"
+>
   <ng-template matMenuContent let-message="message" let-loginRes="loginRes">
     <ng-container *ngIf="!isRecalledMessage(message.type)">
       <button
diff --git a/projects/ucap-webmessenger-ui/src/lib/directives/click-outside.directive.ts b/projects/ucap-webmessenger-ui/src/lib/directives/click-outside.directive.ts
new file mode 100644
index 00000000..5df142c7
--- /dev/null
+++ b/projects/ucap-webmessenger-ui/src/lib/directives/click-outside.directive.ts
@@ -0,0 +1,226 @@
+import {
+  Directive,
+  ElementRef,
+  EventEmitter,
+  Inject,
+  Injectable,
+  Input,
+  OnChanges,
+  OnDestroy,
+  OnInit,
+  Output,
+  PLATFORM_ID,
+  SimpleChanges,
+  NgZone
+} from '@angular/core';
+import { isPlatformBrowser } from '@angular/common';
+
+@Directive({ selector: '[ucapUiClickOutside]' })
+export class ClickOutsideDirective implements OnInit, OnChanges, OnDestroy {
+  @Input()
+  clickOutsideEnabled = true;
+
+  @Input()
+  attachOutsideOnClick = false;
+
+  @Input()
+  delayClickOutsideInit = false;
+
+  @Input()
+  emitOnBlur = false;
+
+  @Input()
+  exclude = '';
+
+  @Input()
+  excludeBeforeClick = false;
+
+  @Input()
+  clickOutsideEvents = '';
+
+  @Output()
+  ucapUiClickOutside: EventEmitter<Event> = new EventEmitter<Event>();
+
+  private nodesExcluded: Array<HTMLElement> = [];
+  private events: Array<string> = ['click', 'contextmenu'];
+
+  constructor(
+    private elementRef: ElementRef,
+    private ngZone: NgZone,
+    @Inject(PLATFORM_ID) private platformId: object
+  ) {
+    this._initOnClickBody = this._initOnClickBody.bind(this);
+    this._onClickBody = this._onClickBody.bind(this);
+    this._onWindowBlur = this._onWindowBlur.bind(this);
+  }
+
+  ngOnInit() {
+    if (!isPlatformBrowser(this.platformId)) {
+      return;
+    }
+
+    this._init();
+  }
+
+  ngOnDestroy() {
+    if (!isPlatformBrowser(this.platformId)) {
+      return;
+    }
+
+    this._removeClickOutsideListener();
+    this._removeAttachOutsideOnClickListener();
+    this._removeWindowBlurListener();
+  }
+
+  ngOnChanges(changes: SimpleChanges) {
+    if (!isPlatformBrowser(this.platformId)) {
+      return;
+    }
+
+    if (changes.attachOutsideOnClick || changes.exclude || changes.emitOnBlur) {
+      this._init();
+    }
+  }
+
+  private _init() {
+    if (this.clickOutsideEvents !== '') {
+      this.events = this.clickOutsideEvents.split(',').map(e => e.trim());
+    }
+
+    this._excludeCheck();
+
+    if (this.attachOutsideOnClick) {
+      this._initAttachOutsideOnClickListener();
+    } else {
+      this._initOnClickBody();
+    }
+
+    if (this.emitOnBlur) {
+      this._initWindowBlurListener();
+    }
+  }
+
+  private _initOnClickBody() {
+    if (this.delayClickOutsideInit) {
+      setTimeout(this._initClickOutsideListener.bind(this));
+    } else {
+      this._initClickOutsideListener();
+    }
+  }
+
+  private _excludeCheck() {
+    if (this.exclude) {
+      try {
+        const nodes = Array.from(
+          document.querySelectorAll(this.exclude)
+        ) as Array<HTMLElement>;
+        if (nodes) {
+          this.nodesExcluded = nodes;
+        }
+      } catch (err) {
+        console.error(
+          '[ng-click-outside] Check your exclude selector syntax.',
+          err
+        );
+      }
+    }
+  }
+
+  private _onClickBody(ev: Event) {
+    if (!this.clickOutsideEnabled) {
+      return;
+    }
+
+    if (this.excludeBeforeClick) {
+      this._excludeCheck();
+    }
+
+    if (
+      !this.elementRef.nativeElement.contains(ev.target) &&
+      !this._shouldExclude(ev.target)
+    ) {
+      this._emit(ev);
+
+      if (this.attachOutsideOnClick) {
+        this._removeClickOutsideListener();
+      }
+    }
+  }
+
+  /**
+   * Resolves problem with outside click on iframe
+   * @see https://github.com/arkon/ng-click-outside/issues/32
+   */
+  private _onWindowBlur(ev: Event) {
+    setTimeout(() => {
+      if (!document.hidden) {
+        this._emit(ev);
+      }
+    });
+  }
+
+  private _emit(ev: Event) {
+    if (!this.clickOutsideEnabled) {
+      return;
+    }
+
+    this.ngZone.run(() => this.ucapUiClickOutside.emit(ev));
+  }
+
+  private _shouldExclude(target): boolean {
+    for (const excludedNode of this.nodesExcluded) {
+      if (excludedNode.contains(target)) {
+        return true;
+      }
+    }
+
+    return false;
+  }
+
+  private _initClickOutsideListener() {
+    this.ngZone.runOutsideAngular(() => {
+      this.events.forEach(e =>
+        document.body.addEventListener(e, this._onClickBody)
+      );
+    });
+  }
+
+  private _removeClickOutsideListener() {
+    this.ngZone.runOutsideAngular(() => {
+      this.events.forEach(e =>
+        document.body.removeEventListener(e, this._onClickBody)
+      );
+    });
+  }
+
+  private _initAttachOutsideOnClickListener() {
+    this.ngZone.runOutsideAngular(() => {
+      this.events.forEach(e =>
+        this.elementRef.nativeElement.addEventListener(e, this._initOnClickBody)
+      );
+    });
+  }
+
+  private _removeAttachOutsideOnClickListener() {
+    this.ngZone.runOutsideAngular(() => {
+      this.events.forEach(e =>
+        this.elementRef.nativeElement.removeEventListener(
+          e,
+          this._initOnClickBody
+        )
+      );
+    });
+  }
+
+  private _initWindowBlurListener() {
+    this.ngZone.runOutsideAngular(() => {
+      window.addEventListener('blur', this._onWindowBlur);
+    });
+  }
+
+  private _removeWindowBlurListener() {
+    this.ngZone.runOutsideAngular(() => {
+      window.removeEventListener('blur', this._onWindowBlur);
+    });
+  }
+}
diff --git a/projects/ucap-webmessenger-ui/src/lib/ucap-ui.module.ts b/projects/ucap-webmessenger-ui/src/lib/ucap-ui.module.ts
index 74f31c72..9a78a600 100644
--- a/projects/ucap-webmessenger-ui/src/lib/ucap-ui.module.ts
+++ b/projects/ucap-webmessenger-ui/src/lib/ucap-ui.module.ts
@@ -18,6 +18,7 @@ import { ClipboardService } from './services/clipboard.service';
 import { DialogService } from './services/dialog.service';
 import { SnackBarService } from './services/snack-bar.service';
 
+import { ClickOutsideDirective } from './directives/click-outside.directive';
 import { FileUploadForDirective } from './directives/file-upload-for.directive';
 import { ImageDirective } from './directives/image.directive';
 
@@ -28,7 +29,11 @@ import { BytesPipe } from './pipes/bytes.pipe';
 
 const COMPONENTS = [FileUploadQueueComponent];
 const DIALOGS = [AlertDialogComponent, ConfirmDialogComponent];
-const DIRECTIVES = [FileUploadForDirective, ImageDirective];
+const DIRECTIVES = [
+  ClickOutsideDirective,
+  FileUploadForDirective,
+  ImageDirective
+];
 const PIPES = [BytesPipe];
 const SERVICES = [
   BottomSheetService,
diff --git a/projects/ucap-webmessenger-ui/src/public-api.ts b/projects/ucap-webmessenger-ui/src/public-api.ts
index 75f44a9a..defefbc3 100644
--- a/projects/ucap-webmessenger-ui/src/public-api.ts
+++ b/projects/ucap-webmessenger-ui/src/public-api.ts
@@ -9,6 +9,7 @@ export * from './lib/components/file-upload-queue.component';
 export * from './lib/dialogs/alert.dialog.component';
 export * from './lib/dialogs/confirm.dialog.component';
 
+export * from './lib/directives/click-outside.directive';
 export * from './lib/directives/file-upload-for.directive';
 export * from './lib/directives/image.directive';