xterm

[VSoRC/.git] / node_modules / xterm / src / browser / Clipboard.ts

diff --git a/node_modules/xterm/src/browser/Clipboard.ts b/node_modules/xterm/src/browser/Clipboard.ts
new file mode 100644 (file)
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+++ b/node_modules/xterm/src/browser/Clipboard.ts
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+/**
+ * Copyright (c) 2016 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+import { ISelectionService } from 'browser/services/Services';
+import { ICoreService } from 'common/services/Services';
+
+/**
+ * Prepares text to be pasted into the terminal by normalizing the line endings
+ * @param text The pasted text that needs processing before inserting into the terminal
+ */
+export function prepareTextForTerminal(text: string): string {
+  return text.replace(/\r?\n/g, '\r');
+}
+
+/**
+ * Bracket text for paste, if necessary, as per https://cirw.in/blog/bracketed-paste
+ * @param text The pasted text to bracket
+ */
+export function bracketTextForPaste(text: string, bracketedPasteMode: boolean): string {
+  if (bracketedPasteMode) {
+    return '\x1b[200~' + text + '\x1b[201~';
+  }
+  return text;
+}
+
+/**
+ * Binds copy functionality to the given terminal.
+ * @param ev The original copy event to be handled
+ */
+export function copyHandler(ev: ClipboardEvent, selectionService: ISelectionService): void {
+  if (ev.clipboardData) {
+    ev.clipboardData.setData('text/plain', selectionService.selectionText);
+  }
+  // Prevent or the original text will be copied.
+  ev.preventDefault();
+}
+
+/**
+ * Redirect the clipboard's data to the terminal's input handler.
+ * @param ev The original paste event to be handled
+ * @param term The terminal on which to apply the handled paste event
+ */
+export function handlePasteEvent(ev: ClipboardEvent, textarea: HTMLTextAreaElement, bracketedPasteMode: boolean, coreService: ICoreService): void {
+  ev.stopPropagation();
+  if (ev.clipboardData) {
+    const text = ev.clipboardData.getData('text/plain');
+    paste(text, textarea, bracketedPasteMode, coreService);
+  }
+}
+
+export function paste(text: string, textarea: HTMLTextAreaElement, bracketedPasteMode: boolean, coreService: ICoreService): void {
+  text = prepareTextForTerminal(text);
+  text = bracketTextForPaste(text, bracketedPasteMode);
+  coreService.triggerDataEvent(text, true);
+  textarea.value = '';
+}
+
+/**
+ * Moves the textarea under the mouse cursor and focuses it.
+ * @param ev The original right click event to be handled.
+ * @param textarea The terminal's textarea.
+ */
+export function moveTextAreaUnderMouseCursor(ev: MouseEvent, textarea: HTMLTextAreaElement, screenElement: HTMLElement): void {
+
+  // Calculate textarea position relative to the screen element
+  const pos = screenElement.getBoundingClientRect();
+  const left = ev.clientX - pos.left - 10;
+  const top = ev.clientY - pos.top - 10;
+
+  // Bring textarea at the cursor position
+  textarea.style.position = 'absolute';
+  textarea.style.width = '20px';
+  textarea.style.height = '20px';
+  textarea.style.left = `${left}px`;
+  textarea.style.top = `${top}px`;
+  textarea.style.zIndex = '1000';
+
+  textarea.focus();
+
+  // Reset the terminal textarea's styling
+  // Timeout needs to be long enough for click event to be handled.
+  setTimeout(() => {
+    textarea.style.position = null;
+    textarea.style.width = null;
+    textarea.style.height = null;
+    textarea.style.left = null;
+    textarea.style.top = null;
+    textarea.style.zIndex = null;
+  }, 200);
+}
+
+/**
+ * Bind to right-click event and allow right-click copy and paste.
+ * @param ev The original right click event to be handled.
+ * @param textarea The terminal's textarea.
+ * @param selectionService The terminal's selection manager.
+ * @param shouldSelectWord If true and there is no selection the current word will be selected
+ */
+export function rightClickHandler(ev: MouseEvent, textarea: HTMLTextAreaElement, screenElement: HTMLElement, selectionService: ISelectionService, shouldSelectWord: boolean): void {
+  moveTextAreaUnderMouseCursor(ev, textarea, screenElement);
+
+  if (shouldSelectWord && !selectionService.isClickInSelection(ev)) {
+    selectionService.selectWordAtCursor(ev);
+  }
+
+  // Get textarea ready to copy from the context menu
+  textarea.value = selectionService.selectionText;
+  textarea.select();
+}