From 3b4936b6f2b870f9f2444ebb6ce1ca2de3f49d9f Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 04:54:31 +0200
Subject: Adding upstream version 1.7.4.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../components/terminal/xterm/addons/overlay.ts    | 73 ++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 html/src/components/terminal/xterm/addons/overlay.ts

(limited to 'html/src/components/terminal/xterm/addons/overlay.ts')

diff --git a/html/src/components/terminal/xterm/addons/overlay.ts b/html/src/components/terminal/xterm/addons/overlay.ts
new file mode 100644
index 0000000..6fa5a92
--- /dev/null
+++ b/html/src/components/terminal/xterm/addons/overlay.ts
@@ -0,0 +1,73 @@
+// ported from hterm.Terminal.prototype.showOverlay
+// https://chromium.googlesource.com/apps/libapps/+/master/hterm/js/hterm_terminal.js
+import { bind } from 'decko';
+import { ITerminalAddon, Terminal } from 'xterm';
+
+export class OverlayAddon implements ITerminalAddon {
+    private terminal: Terminal;
+    private overlayNode: HTMLElement;
+    private overlayTimeout?: number;
+
+    constructor() {
+        this.overlayNode = document.createElement('div');
+        this.overlayNode.style.cssText = `border-radius: 15px;
+font-size: xx-large;
+opacity: 0.75;
+padding: 0.2em 0.5em 0.2em 0.5em;
+position: absolute;
+-webkit-user-select: none;
+-webkit-transition: opacity 180ms ease-in;
+-moz-user-select: none;
+-moz-transition: opacity 180ms ease-in;`;
+
+        this.overlayNode.addEventListener(
+            'mousedown',
+            e => {
+                e.preventDefault();
+                e.stopPropagation();
+            },
+            true
+        );
+    }
+
+    activate(terminal: Terminal): void {
+        this.terminal = terminal;
+    }
+
+    dispose(): void {}
+
+    @bind
+    showOverlay(msg: string, timeout?: number): void {
+        const { terminal, overlayNode } = this;
+        if (!terminal.element) return;
+
+        overlayNode.style.color = '#101010';
+        overlayNode.style.backgroundColor = '#f0f0f0';
+        overlayNode.textContent = msg;
+        overlayNode.style.opacity = '0.75';
+
+        if (!overlayNode.parentNode) {
+            terminal.element.appendChild(overlayNode);
+        }
+
+        const divSize = terminal.element.getBoundingClientRect();
+        const overlaySize = overlayNode.getBoundingClientRect();
+
+        overlayNode.style.top = (divSize.height - overlaySize.height) / 2 + 'px';
+        overlayNode.style.left = (divSize.width - overlaySize.width) / 2 + 'px';
+
+        if (this.overlayTimeout) clearTimeout(this.overlayTimeout);
+        if (!timeout) return;
+
+        this.overlayTimeout = window.setTimeout(() => {
+            overlayNode.style.opacity = '0';
+            this.overlayTimeout = window.setTimeout(() => {
+                if (overlayNode.parentNode) {
+                    overlayNode.parentNode.removeChild(overlayNode);
+                }
+                this.overlayTimeout = undefined;
+                overlayNode.style.opacity = '0.75';
+            }, 200);
+        }, timeout || 1500);
+    }
+}
-- 
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