Update developer-tools-template.ts: add independent scrollbars for left & right panels for large screens (#17765)

* Update developer-tools-template.ts

* Update developer-tools-template.ts

* fix overflow

* Update src/panels/developer-tools/template/developer-tools-template.ts

Co-authored-by: Wendelin <[email protected]>

* Update src/panels/developer-tools/template/developer-tools-template.ts

Co-authored-by: Wendelin <[email protected]>

* Update developer-tools-template.ts

* Update src/panels/developer-tools/template/developer-tools-template.ts

Co-authored-by: Wendelin <[email protected]>

* Update developer-tools-template.ts

* prettier

* Update developer-tools-template.ts

* Update developer-tools-template.ts

* prettier

* Update developer-tools-template.ts

* prettier

* prettier

* Update developer-tools-template.ts

* prettier

* prettier

* prettier

* Update developer-tools-template.ts

---------

Co-authored-by: Wendelin <[email protected]>

Author: ildar170975

Diff for: src/panels/developer-tools/template/developer-tools-template.ts

@@ -181,17 +181,21 @@ class HaPanelDevTemplate extends LitElement {
                 >`
               : nothing}
             ${this._templateResult
-              ? html`${this.hass.localize(
-                    "ui.panel.developer-tools.tabs.templates.result_type"
-                  )}:
-                  ${resultType}
-                  <!-- prettier-ignore -->
-                  <pre class="rendered ${classMap({
-                    [resultType]: resultType,
-                  })}"
-                  >${type === "object"
-                    ? JSON.stringify(this._templateResult.result, null, 2)
-                    : this._templateResult.result}</pre>
+              ? html`<pre
+                    class="rendered ${classMap({
+                      [resultType]: resultType,
+                    })}"
+                  >
+                    ${type === "object"
+                      ? JSON.stringify(this._templateResult.result, null, 2)
+                      : this._templateResult.result}</pre
+                  >
+                  <p>
+                    ${this.hass.localize(
+                      "ui.panel.developer-tools.tabs.templates.result_type"
+                    )}:
+                    ${resultType}
+                  </p>
                   ${this._templateResult.listeners.time
                     ? html`
                         <p>
@@ -249,11 +253,11 @@ class HaPanelDevTemplate extends LitElement {
                             </ul>
                           `
                         : !this._templateResult.listeners.time
-                          ? html`<span class="all_listeners">
+                          ? html`<p class="all_listeners">
                               ${this.hass.localize(
                                 "ui.panel.developer-tools.tabs.templates.no_listeners"
                               )}
-                            </span>`
+                            </p>`
                           : nothing}`
               : nothing}
           </div>
@@ -281,6 +285,10 @@ class HaPanelDevTemplate extends LitElement {
             max(16px, env(safe-area-inset-left));
         }
 
+        .content.horizontal {
+          --code-mirror-max-height: calc(100vh - 389px);
+        }
+
         ha-card {
           margin-bottom: 16px;
         }
@@ -293,8 +301,9 @@ class HaPanelDevTemplate extends LitElement {
           color: var(--primary-color);
         }
 
-        .horizontal .edit-pane {
-          max-width: 50%;
+        .content.horizontal > * {
+          width: 50%;
+          margin-bottom: 0px;
         }
 
         .render-spinner {
@@ -316,15 +325,29 @@ class HaPanelDevTemplate extends LitElement {
           white-space: pre-wrap;
           background-color: var(--secondary-background-color);
           padding: 8px;
+          margin-top: 0;
+          margin-bottom: 0;
           direction: ltr;
+          overflow: auto;
+        }
+
+        p,
+        ul {
+          margin-block-end: 0;
+        }
+
+        .content.horizontal .render-pane .card-content {
+          display: flex;
+          flex-direction: column;
+          max-height: calc(var(--code-mirror-max-height) + 47px);
         }
 
         .all_listeners {
           color: var(--warning-color);
         }
 
         @media all and (max-width: 870px) {
-          .render-pane {
+          .content ha-card {
             max-width: 100%;
           }
         }