Various improvements:

* CSS cleaning
* disabling buttons during loading
* reset buttons on forms

assets/styles/configuration.scss

@@ -72,7 +72,10 @@ $small-view: 800px;
     }
 
     input[type="submit"],
-    input[type="reset"] {
+    input[type="reset"],
+    button[type="submit"],
+    button[type="reset"],
+    .peertube-plugin-livechat-configuration-actions button {
       // Peertube rounded-line-height-1-5 mixins
       line-height: $button-calc-line-height;
 
@@ -86,7 +89,9 @@ $small-view: 800px;
       font-size: $button-font-size;
     }
 
-    input[type="submit"] {
+    input[type="submit"],
+    button[type="submit"],
+    .peertube-plugin-livechat-configuration-actions button {
       // Peertube orange-button mixin
       &,
       &:active,
@@ -108,7 +113,8 @@ $small-view: 800px;
       }
     }
 
-    input[type="reset"] {
+    input[type="reset"],
+    button[type="reset"] {
       // Peertube grey-button mixin
       background-color: var(--greyBackgroundColor);
       color: var(--greyForegroundColor);

client/common/configuration/elements/channel-configuration.ts

@@ -36,19 +36,40 @@ export class ChannelConfigurationElement extends LivechatElement {
   @state()
   public _validationError?: ValidationError
 
-  private readonly _asyncTaskRender = new Task(this, {
+  @state()
+  private _actionDisabled: boolean = false
+
+  private _asyncTaskRender: Task
+
+  constructor () {
+    super()
+    this._asyncTaskRender = this._initTask()
+  }
+
+  protected _initTask (): Task {
+    return new Task(this, {
       task: async ([registerClientOptions]) => {
         if (registerClientOptions) {
           this._channelDetailsService = new ChannelDetailsService(registerClientOptions)
           this._channelConfiguration = await this._channelDetailsService.fetchConfiguration(this.channelId ?? 0)
+          this._actionDisabled = false // in case of reset
         }
       },
       args: () => [this.registerClientOptions]
     })
+  }
+
+  private async _reset (event?: Event): Promise<void> {
+    event?.preventDefault()
+    this._actionDisabled = true
+    this._asyncTaskRender = this._initTask()
+    this.requestUpdate()
+  }
 
   private readonly _saveConfig = async (event?: Event): Promise<void> => {
     event?.preventDefault()
     if (this._channelDetailsService && this._channelConfiguration) {
+      this._actionDisabled = true
       this._channelDetailsService.saveOptions(this._channelConfiguration.channel.id,
         this._channelConfiguration.configuration)
         .then(() => {
@@ -72,6 +93,9 @@ export class ChannelConfigurationElement extends LivechatElement {
           )
           this.requestUpdate('_validationError')
         })
+        .finally(() => {
+          this._actionDisabled = false
+        })
     }
   }
 
@@ -398,7 +422,12 @@ export class ChannelConfigurationElement extends LivechatElement {
               </div>
             `}
             <div class="form-group mt-5">
-              <input type="submit" class="peertube-button-link orange-button" value=${ptTr(LOC_SAVE)} />
+              <button type="reset" @click=${this._reset} ?disabled=${this._actionDisabled}>
+                ${ptTr(LOC_CANCEL)}
+              </button>
+              <button type="submit" ?disabled=${this._actionDisabled}>
+                ${ptTr(LOC_SAVE)}
+              </button>
             </div>
           </form>
         </div>`

client/common/configuration/elements/channel-emojis.ts

@@ -37,6 +37,16 @@ export class ChannelEmojisElement extends LivechatElement {
   @state()
   private _validationError?: ValidationError
 
+  @state()
+  private _actionDisabled: boolean = false
+
+  private _asyncTaskRender: Task
+
+  constructor () {
+    super()
+    this._asyncTaskRender = this._initTask()
+  }
+
   protected override render = (): unknown => {
     const tableHeaderList: DynamicFormHeader = {
       sn: {
@@ -84,14 +94,22 @@ export class ChannelEmojisElement extends LivechatElement {
           <div class="peertube-plugin-livechat-configuration-actions">
             ${
               this._channelEmojisConfiguration?.emojis?.customEmojis?.length
-                ? html`<button class="peertube-button-link orange-button" @click=${this._exportEmojis}>
+                ? html`
+                <button
+                  @click=${this._exportEmojis}
+                  ?disabled=${this._actionDisabled}
+                >
                   ${ptTr(LOC_ACTION_EXPORT)}
                 </button>`
                 : ''
             }
             ${
               (this._channelEmojisConfiguration?.emojis?.customEmojis?.length ?? 0) < maxEmojisPerChannel
-                ? html`<button class="peertube-button-link orange-button" @click=${this._importEmojis}>
+                ? html`
+                <button
+                  @click=${this._importEmojis}
+                  ?disabled=${this._actionDisabled}
+                >
                   ${ptTr(LOC_ACTION_IMPORT)}
                 </button>`
                 : ''
@@ -123,7 +141,10 @@ export class ChannelEmojisElement extends LivechatElement {
               ></livechat-dynamic-table-form>
             </div>
             <div class="form-group mt-5">
-              <button type="submit" class="peertube-button-link orange-button">
+              <button type="reset" @click=${this._reset} ?disabled=${this._actionDisabled}>
+                ${ptTr(LOC_CANCEL)}
+              </button>
+              <button type="submit" ?disabled=${this._actionDisabled}>
                 ${ptTr(LOC_SAVE)}
               </button>
             </div>
@@ -136,7 +157,8 @@ export class ChannelEmojisElement extends LivechatElement {
     })
   }
 
-  private readonly _asyncTaskRender = new Task(this, {
+  protected _initTask (): Task {
+    return new Task(this, {
       task: async () => {
         if (!this.registerClientOptions) {
           throw new Error('Missing client options')
@@ -146,9 +168,18 @@ export class ChannelEmojisElement extends LivechatElement {
         }
         this._channelDetailsService = new ChannelDetailsService(this.registerClientOptions)
         this._channelEmojisConfiguration = await this._channelDetailsService.fetchEmojisConfiguration(this.channelId)
+        this._actionDisabled = false // in case of reset
       },
       args: () => []
     })
+  }
+
+  private async _reset (ev?: Event): Promise<void> {
+    ev?.preventDefault()
+    this._actionDisabled = true
+    this._asyncTaskRender = this._initTask()
+    this.requestUpdate()
+  }
 
   private async _saveEmojis (ev?: Event): Promise<void> {
     ev?.preventDefault()
@@ -161,6 +192,7 @@ export class ChannelEmojisElement extends LivechatElement {
     }
 
     try {
+      this._actionDisabled = true
       await this._channelDetailsService.saveEmojisConfiguration(this.channelId, this._channelEmojisConfiguration.emojis)
       this._validationError = undefined
       peertubeHelpers.notifier.info(await peertubeHelpers.translate(LOC_SUCCESSFULLY_SAVED))
@@ -177,13 +209,14 @@ export class ChannelEmojisElement extends LivechatElement {
       msg ??= await peertubeHelpers.translate(LOC_ERROR)
       peertubeHelpers.notifier.error(msg)
       this.requestUpdate('_validationError')
+    } finally {
+      this._actionDisabled = false
     }
   }
 
   private async _importEmojis (ev: Event): Promise<void> {
     ev.preventDefault()
-    const b: HTMLElement | null = ev.target && 'tagName' in ev.target ? ev.target as HTMLElement : null
-    b?.setAttribute('disabled', '')
+    this._actionDisabled = true
     try {
       // download a json file:
       const file = await new Promise<File>((resolve, reject) => {
@@ -256,14 +289,13 @@ export class ChannelEmojisElement extends LivechatElement {
     } catch (err: any) {
       this.registerClientOptions?.peertubeHelpers.notifier.error(err.toString())
     } finally {
-      b?.removeAttribute('disabled')
+      this._actionDisabled = false
     }
   }
 
   private async _exportEmojis (ev: Event): Promise<void> {
     ev.preventDefault()
-    const b: HTMLElement | null = ev.target && 'tagName' in ev.target ? ev.target as HTMLElement : null
-    b?.setAttribute('disabled', '')
+    this._actionDisabled = true
     try {
       const result: ChannelEmojisConfiguration['emojis']['customEmojis'] = []
       for (const ed of this._channelEmojisConfiguration?.emojis?.customEmojis ?? []) {
@@ -293,7 +325,7 @@ export class ChannelEmojisElement extends LivechatElement {
       console.error(err)
       this.registerClientOptions?.peertubeHelpers.notifier.error(err.toString())
     } finally {
-      b?.removeAttribute('disabled')
+      this._actionDisabled = false
     }
   }