1 files changed, 76 insertions, 0 deletions
diff --git a/plugins/pastefromlibreoffice/plugin.js b/plugins/pastefromlibreoffice/plugin.js
new file mode 100755
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+++ b/plugins/pastefromlibreoffice/plugin.js
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+/**
+ * @license Copyright (c) 2003-2025, CKSource Holding sp. z o.o. All rights reserved.
+ * CKEditor 4 LTS ("Long Term Support") is available under the terms of the Extended Support Model.
+ */
+
+/**
+ * @fileOverview This plugin handles pasting content from LibreOffice.
+ */
+
+(function() {
+	'use strict';
+
+	CKEDITOR.plugins.add('pastefromlibreoffice', {
+		requires: 'pastetools',
+
+		isSupportedEnvironment: function() {
+			var isSafari = CKEDITOR.env.webkit && !CKEDITOR.env.chrome,
+				isIE = CKEDITOR.env.ie && CKEDITOR.env.version <= 11;
+
+			return !isSafari && !isIE;
+		},
+
+		init: function(editor) {
+			if (!this.isSupportedEnvironment()) {
+				return;
+			}
+
+			var pasteToolsPath = CKEDITOR.plugins.getPath('pastetools'),
+				path = this.path;
+
+			editor.pasteTools.register({
+				priority: 100, // after PFW
+				filters: [
+					CKEDITOR.getUrl(pasteToolsPath + 'filter/common.js'),
+					CKEDITOR.getUrl(pasteToolsPath + 'filter/image.js'),
+					CKEDITOR.getUrl(path + 'filter/default.js')
+				],
+
+				canHandle: function(evt) {
+					var data = evt.data,
+						textHtml = data.dataTransfer.getData('text/html', true) || data.dataValue,
+						generatorName;
+
+					// Do not run the filter if there is no input data.
+					if (!textHtml) {
+						return false;
+					}
+
+					generatorName = CKEDITOR.plugins.pastetools.getContentGeneratorName(textHtml);
+
+					return generatorName === 'libreoffice';
+				},
+
+				handle: function(evt, next) {
+					var data = evt.data,
+						clipboardHtml = data.dataValue || CKEDITOR.plugins.pastetools.getClipboardData(data, 'text/html');
+
+					// Do not apply the paste filter to the data filtered by the LibreOffice filter (https://dev.ckeditor.com/ticket/13093).
+					// TO DO it might be unnecessary!!!
+					data.dontFilter = true;
+
+					clipboardHtml = CKEDITOR.pasteFilters.image(clipboardHtml, editor, CKEDITOR.plugins.pastetools.getClipboardData(data, 'text/rtf'));
+
+					data.dataValue = CKEDITOR.pasteFilters.libreoffice(clipboardHtml, editor);
+
+					if (editor.config.forcePasteAsPlainText === true) {
+						// If `config.forcePasteAsPlainText` is set to `true`, force plain text even on Libre Office content (#1013).
+						data.type = 'text';
+					}
+
+					next();
+				}
+			});
+		}
+	});
+})();