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path: root/app/assets/javascripts/editor/extensions/source_editor_markdown_ext.js
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-rw-r--r--app/assets/javascripts/editor/extensions/source_editor_markdown_ext.js330
1 files changed, 92 insertions, 238 deletions
diff --git a/app/assets/javascripts/editor/extensions/source_editor_markdown_ext.js b/app/assets/javascripts/editor/extensions/source_editor_markdown_ext.js
index 57de21c933e..a16fe93026e 100644
--- a/app/assets/javascripts/editor/extensions/source_editor_markdown_ext.js
+++ b/app/assets/javascripts/editor/extensions/source_editor_markdown_ext.js
@@ -1,248 +1,102 @@
-import { debounce } from 'lodash';
-import { BLOB_PREVIEW_ERROR } from '~/blob_edit/constants';
-import createFlash from '~/flash';
-import { sanitize } from '~/lib/dompurify';
-import axios from '~/lib/utils/axios_utils';
-import { __ } from '~/locale';
-import syntaxHighlight from '~/syntax_highlight';
-import {
- EXTENSION_MARKDOWN_PREVIEW_PANEL_CLASS,
- EXTENSION_MARKDOWN_PREVIEW_ACTION_ID,
- EXTENSION_MARKDOWN_PREVIEW_PANEL_WIDTH,
- EXTENSION_MARKDOWN_PREVIEW_PANEL_PARENT_CLASS,
- EXTENSION_MARKDOWN_PREVIEW_UPDATE_DELAY,
-} from '../constants';
-import { SourceEditorExtension } from './source_editor_extension_base';
-
-const getPreview = (text, previewMarkdownPath) => {
- return axios
- .post(previewMarkdownPath, {
- text,
- })
- .then(({ data }) => {
- return data.body;
- });
-};
-
-const setupDomElement = ({ injectToEl = null } = {}) => {
- const previewEl = document.createElement('div');
- previewEl.classList.add(EXTENSION_MARKDOWN_PREVIEW_PANEL_CLASS);
- previewEl.style.display = 'none';
- if (injectToEl) {
- injectToEl.appendChild(previewEl);
+export class EditorMarkdownExtension {
+ static get extensionName() {
+ return 'EditorMarkdown';
}
- return previewEl;
-};
-export class EditorMarkdownExtension extends SourceEditorExtension {
- constructor({ instance, previewMarkdownPath, ...args } = {}) {
- super({ instance, ...args });
- Object.assign(instance, {
- previewMarkdownPath,
- preview: {
- el: undefined,
- action: undefined,
- shown: false,
- modelChangeListener: undefined,
+ // eslint-disable-next-line class-methods-use-this
+ provides() {
+ return {
+ getSelectedText: (instance, selection = instance.getSelection()) => {
+ const { startLineNumber, endLineNumber, startColumn, endColumn } = selection;
+ const valArray = instance.getValue().split('\n');
+ let text = '';
+ if (startLineNumber === endLineNumber) {
+ text = valArray[startLineNumber - 1].slice(startColumn - 1, endColumn - 1);
+ } else {
+ const startLineText = valArray[startLineNumber - 1].slice(startColumn - 1);
+ const endLineText = valArray[endLineNumber - 1].slice(0, endColumn - 1);
+
+ for (let i = startLineNumber, k = endLineNumber - 1; i < k; i += 1) {
+ text += `${valArray[i]}`;
+ if (i !== k - 1) text += `\n`;
+ }
+ text = text
+ ? [startLineText, text, endLineText].join('\n')
+ : [startLineText, endLineText].join('\n');
+ }
+ return text;
},
- });
- this.setupPreviewAction.call(instance);
-
- instance.getModel().onDidChangeLanguage(({ newLanguage, oldLanguage } = {}) => {
- if (newLanguage === 'markdown' && oldLanguage !== newLanguage) {
- instance.setupPreviewAction();
- } else {
- instance.cleanup();
- }
- });
-
- instance.onDidChangeModel(() => {
- const model = instance.getModel();
- if (model) {
- const { language } = model.getLanguageIdentifier();
- instance.cleanup();
- if (language === 'markdown') {
- instance.setupPreviewAction();
+ replaceSelectedText: (instance, text, select) => {
+ const forceMoveMarkers = !select;
+ instance.executeEdits('', [{ range: instance.getSelection(), text, forceMoveMarkers }]);
+ },
+ moveCursor: (instance, dx = 0, dy = 0) => {
+ const pos = instance.getPosition();
+ pos.column += dx;
+ pos.lineNumber += dy;
+ instance.setPosition(pos);
+ },
+ /**
+ * Adjust existing selection to select text within the original selection.
+ * - If `selectedText` is not supplied, we fetch selected text with
+ *
+ * ALGORITHM:
+ *
+ * MULTI-LINE SELECTION
+ * 1. Find line that contains `toSelect` text.
+ * 2. Using the index of this line and the position of `toSelect` text in it,
+ * construct:
+ * * newStartLineNumber
+ * * newStartColumn
+ *
+ * SINGLE-LINE SELECTION
+ * 1. Use `startLineNumber` from the current selection as `newStartLineNumber`
+ * 2. Find the position of `toSelect` text in it to get `newStartColumn`
+ *
+ * 3. `newEndLineNumber` — Since this method is supposed to be used with
+ * markdown decorators that are pretty short, the `newEndLineNumber` is
+ * suggested to be assumed the same as the startLine.
+ * 4. `newEndColumn` — pretty obvious
+ * 5. Adjust the start and end positions of the current selection
+ * 6. Re-set selection on the instance
+ *
+ * @param {module:source_editor_instance~EditorInstance} instance - The Source Editor instance. Is passed automatically.
+ * @param {string} toSelect - New text to select within current selection.
+ * @param {string} selectedText - Currently selected text. It's just a
+ * shortcut: If it's not supplied, we fetch selected text from the instance
+ */
+ selectWithinSelection: (instance, toSelect, selectedText) => {
+ const currentSelection = instance.getSelection();
+ if (currentSelection.isEmpty() || !toSelect) {
+ return;
+ }
+ const text = selectedText || instance.getSelectedText(currentSelection);
+ let lineShift;
+ let newStartLineNumber;
+ let newStartColumn;
+
+ const textLines = text.split('\n');
+
+ if (textLines.length > 1) {
+ // Multi-line selection
+ lineShift = textLines.findIndex((line) => line.indexOf(toSelect) !== -1);
+ newStartLineNumber = currentSelection.startLineNumber + lineShift;
+ newStartColumn = textLines[lineShift].indexOf(toSelect) + 1;
+ } else {
+ // Single-line selection
+ newStartLineNumber = currentSelection.startLineNumber;
+ newStartColumn = currentSelection.startColumn + text.indexOf(toSelect);
}
- }
- });
- }
-
- static togglePreviewLayout() {
- const { width, height } = this.getLayoutInfo();
- const newWidth = this.preview.shown
- ? width / EXTENSION_MARKDOWN_PREVIEW_PANEL_WIDTH
- : width * EXTENSION_MARKDOWN_PREVIEW_PANEL_WIDTH;
- this.layout({ width: newWidth, height });
- }
-
- static togglePreviewPanel() {
- const parentEl = this.getDomNode().parentElement;
- const { el: previewEl } = this.preview;
- parentEl.classList.toggle(EXTENSION_MARKDOWN_PREVIEW_PANEL_PARENT_CLASS);
-
- if (previewEl.style.display === 'none') {
- // Show the preview panel
- this.fetchPreview();
- } else {
- // Hide the preview panel
- previewEl.style.display = 'none';
- }
- }
-
- cleanup() {
- if (this.preview.modelChangeListener) {
- this.preview.modelChangeListener.dispose();
- }
- this.preview.action.dispose();
- if (this.preview.shown) {
- EditorMarkdownExtension.togglePreviewPanel.call(this);
- EditorMarkdownExtension.togglePreviewLayout.call(this);
- }
- this.preview.shown = false;
- }
-
- fetchPreview() {
- const { el: previewEl } = this.preview;
- getPreview(this.getValue(), this.previewMarkdownPath)
- .then((data) => {
- previewEl.innerHTML = sanitize(data);
- syntaxHighlight(previewEl.querySelectorAll('.js-syntax-highlight'));
- previewEl.style.display = 'block';
- })
- .catch(() => createFlash(BLOB_PREVIEW_ERROR));
- }
- setupPreviewAction() {
- if (this.getAction(EXTENSION_MARKDOWN_PREVIEW_ACTION_ID)) return;
+ const newEndLineNumber = newStartLineNumber;
+ const newEndColumn = newStartColumn + toSelect.length;
- this.preview.action = this.addAction({
- id: EXTENSION_MARKDOWN_PREVIEW_ACTION_ID,
- label: __('Preview Markdown'),
- keybindings: [
- // eslint-disable-next-line no-bitwise,no-undef
- monaco.KeyMod.chord(monaco.KeyMod.CtrlCmd | monaco.KeyMod.Shift | monaco.KeyCode.KEY_P),
- ],
- contextMenuGroupId: 'navigation',
- contextMenuOrder: 1.5,
+ const newSelection = currentSelection
+ .setStartPosition(newStartLineNumber, newStartColumn)
+ .setEndPosition(newEndLineNumber, newEndColumn);
- // Method that will be executed when the action is triggered.
- // @param ed The editor instance is passed in as a convenience
- run(instance) {
- instance.togglePreview();
+ instance.setSelection(newSelection);
},
- });
- }
-
- togglePreview() {
- if (!this.preview?.el) {
- this.preview.el = setupDomElement({ injectToEl: this.getDomNode().parentElement });
- }
- EditorMarkdownExtension.togglePreviewLayout.call(this);
- EditorMarkdownExtension.togglePreviewPanel.call(this);
-
- if (!this.preview?.shown) {
- this.preview.modelChangeListener = this.onDidChangeModelContent(
- debounce(this.fetchPreview.bind(this), EXTENSION_MARKDOWN_PREVIEW_UPDATE_DELAY),
- );
- } else {
- this.preview.modelChangeListener.dispose();
- }
-
- this.preview.shown = !this.preview?.shown;
- }
-
- getSelectedText(selection = this.getSelection()) {
- const { startLineNumber, endLineNumber, startColumn, endColumn } = selection;
- const valArray = this.getValue().split('\n');
- let text = '';
- if (startLineNumber === endLineNumber) {
- text = valArray[startLineNumber - 1].slice(startColumn - 1, endColumn - 1);
- } else {
- const startLineText = valArray[startLineNumber - 1].slice(startColumn - 1);
- const endLineText = valArray[endLineNumber - 1].slice(0, endColumn - 1);
-
- for (let i = startLineNumber, k = endLineNumber - 1; i < k; i += 1) {
- text += `${valArray[i]}`;
- if (i !== k - 1) text += `\n`;
- }
- text = text
- ? [startLineText, text, endLineText].join('\n')
- : [startLineText, endLineText].join('\n');
- }
- return text;
- }
-
- replaceSelectedText(text, select = undefined) {
- const forceMoveMarkers = !select;
- this.executeEdits('', [{ range: this.getSelection(), text, forceMoveMarkers }]);
- }
-
- moveCursor(dx = 0, dy = 0) {
- const pos = this.getPosition();
- pos.column += dx;
- pos.lineNumber += dy;
- this.setPosition(pos);
- }
-
- /**
- * Adjust existing selection to select text within the original selection.
- * - If `selectedText` is not supplied, we fetch selected text with
- *
- * ALGORITHM:
- *
- * MULTI-LINE SELECTION
- * 1. Find line that contains `toSelect` text.
- * 2. Using the index of this line and the position of `toSelect` text in it,
- * construct:
- * * newStartLineNumber
- * * newStartColumn
- *
- * SINGLE-LINE SELECTION
- * 1. Use `startLineNumber` from the current selection as `newStartLineNumber`
- * 2. Find the position of `toSelect` text in it to get `newStartColumn`
- *
- * 3. `newEndLineNumber` — Since this method is supposed to be used with
- * markdown decorators that are pretty short, the `newEndLineNumber` is
- * suggested to be assumed the same as the startLine.
- * 4. `newEndColumn` — pretty obvious
- * 5. Adjust the start and end positions of the current selection
- * 6. Re-set selection on the instance
- *
- * @param {string} toSelect - New text to select within current selection.
- * @param {string} selectedText - Currently selected text. It's just a
- * shortcut: If it's not supplied, we fetch selected text from the instance
- */
- selectWithinSelection(toSelect, selectedText) {
- const currentSelection = this.getSelection();
- if (currentSelection.isEmpty() || !toSelect) {
- return;
- }
- const text = selectedText || this.getSelectedText(currentSelection);
- let lineShift;
- let newStartLineNumber;
- let newStartColumn;
-
- const textLines = text.split('\n');
-
- if (textLines.length > 1) {
- // Multi-line selection
- lineShift = textLines.findIndex((line) => line.indexOf(toSelect) !== -1);
- newStartLineNumber = currentSelection.startLineNumber + lineShift;
- newStartColumn = textLines[lineShift].indexOf(toSelect) + 1;
- } else {
- // Single-line selection
- newStartLineNumber = currentSelection.startLineNumber;
- newStartColumn = currentSelection.startColumn + text.indexOf(toSelect);
- }
-
- const newEndLineNumber = newStartLineNumber;
- const newEndColumn = newStartColumn + toSelect.length;
-
- const newSelection = currentSelection
- .setStartPosition(newStartLineNumber, newStartColumn)
- .setEndPosition(newEndLineNumber, newEndColumn);
-
- this.setSelection(newSelection);
+ };
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-27 10:37:04 +0300