META-INF.dirigible.dev-tools.changes.ChangesTextEditor.js Maven / Gradle / Ivy
// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import * as TextEditor from '../text_editor/text_editor.js';
import * as UI from '../ui/ui.js'; // eslint-disable-line no-unused-vars
import {Row, RowType} from './ChangesView.js'; // eslint-disable-line no-unused-vars
/**
* @extends {TextEditor.CodeMirrorTextEditor.CodeMirrorTextEditor}
*/
export class ChangesTextEditor extends TextEditor.CodeMirrorTextEditor.CodeMirrorTextEditor {
/**
* @param {!UI.TextEditor.Options} options
*/
constructor(options) {
options.inputStyle = 'devToolsAccessibleDiffTextArea';
super(options);
this.codeMirror().setOption('gutters', ['CodeMirror-linenumbers', 'changes-diff-gutter']);
this.codeMirror().setOption('extraKeys', {
Enter: false,
Space: false,
Left: function(cm) {
const scrollInfo = cm.getScrollInfo();
// Left edge check required due to bug where line numbers would disappear when attempting to scroll left when the scrollbar is at the leftmost point.
// CodeMirror Issue: https://github.com/codemirror/CodeMirror/issues/6139
if (scrollInfo.left > 0) {
cm.scrollTo(scrollInfo.left - Math.round(scrollInfo.clientWidth / 6), null);
}
},
Right: function(cm) {
const scrollInfo = cm.getScrollInfo();
cm.scrollTo(scrollInfo.left + Math.round(scrollInfo.clientWidth / 6), null);
}
});
}
/**
* @param {!Array} diffRows
*/
updateDiffGutter(diffRows) {
this.codeMirror().eachLine(line => {
const lineNumber = this.codeMirror().getLineNumber(line);
const row = diffRows[lineNumber];
let gutterMarker;
if (row.type === RowType.Deletion) {
gutterMarker = createElementWithClass('div', 'deletion changes-diff-gutter-marker');
gutterMarker.textContent = '-';
} else if (row.type === RowType.Addition) {
gutterMarker = createElementWithClass('div', 'addition changes-diff-gutter-marker');
gutterMarker.textContent = '+';
}
if (gutterMarker) {
this.codeMirror().setGutterMarker(line, 'changes-diff-gutter', gutterMarker);
}
});
}
}
export class DevToolsAccessibleDiffTextArea extends CodeMirror.inputStyles.devToolsAccessibleTextArea {
/**
* @override
* @param {boolean=} typing - whether the user is currently typing
*/
reset(typing) {
super.reset(typing);
if (this.textAreaBusy(!!typing) || !(typeof this.cm.doc.modeOption === 'object')) {
return;
}
const diffRows = this.cm.doc.modeOption.diffRows;
const lineNumber = this.cm.getCursor().line;
const rowType = diffRows[lineNumber].type;
if (rowType === RowType.Deletion) {
this.textarea.value = ls`Deletion:${this.textarea.value}`;
}
if (rowType === RowType.Addition) {
this.textarea.value = ls`Addition:${this.textarea.value}`;
}
this.prevInput = this.textarea.value;
}
}
/**
* @constructor
*/
CodeMirror.inputStyles.devToolsAccessibleDiffTextArea = DevToolsAccessibleDiffTextArea;