mirror of https://github.com/shadowfacts/type.git
136 lines
3.2 KiB
JavaScript
136 lines
3.2 KiB
JavaScript
let editor = new CodeMirror(document.body, {
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value: "function myScript() {\t\n\treturn 100;\n}",
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mode: "javascript",
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readOnly: true,
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autofocus: true
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});
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var incompleteMark = editor.doc.markText({ line: 0, ch: 0 }, getEndPos(), {
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className: "incomplete"
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});
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var focused = true;
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editor.on("focus", (instance, event) => {
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focused = true;
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});
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editor.on("blur", (instance, event) => {
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focused = false;
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})
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let invalids = [];
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document.addEventListener("keypress", (event) => {
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if (focused) {
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event.preventDefault();
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let pos = editor.getCursor();
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let line = editor.doc.getLine(pos.line);
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let char = line.charCodeAt(pos.ch);
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if (event.charCode != char) {
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let mark = editor.doc.markText(pos, {line: pos.line, ch: pos.ch + 1}, {
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className: "invalid"
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});
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if (!invalids[pos.line]) invalids[pos.line] = [];
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invalids[pos.line][pos.ch] = mark;
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}
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editor.setCursor({ line: pos.line, ch: pos.ch + 1 });
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updateIncompleteMark();
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}
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});
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document.addEventListener("keydown", (event) => {
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if (focused) {
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var result = false;
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if (event.keyCode == 8) { // delete
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result = true;
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let pos = editor.getCursor();
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if (pos.ch == 0) { // move up 1 line {
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moveToEndOfPreviousLine();
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} else { // move back 1 char
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let line = editor.doc.getLine(pos.line);
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if (line.hasOnlyWhiteSpaceBeforeIndex(pos.ch)) {
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moveToEndOfPreviousLine();
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} else {
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editor.setCursor({ line: pos.line, ch: pos.ch - 1 });
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}
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}
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let newPos = editor.getCursor();
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let lineInvalids = invalids[newPos.line];
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if (lineInvalids) {
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let mark = lineInvalids[newPos.ch];
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if (mark) {
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mark.clear();
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lineInvalids.splice(newPos.ch, 1);
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}
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}
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updateIncompleteMark();
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} else if (event.keyCode == 13) { // enter
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result = true;
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let pos = editor.getCursor();
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if (pos.line != editor.doc.size - 1) {
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let currentLine = editor.doc.getLine(pos.line);
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let trimmed = currentLine.trim();
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if (editor.getCursor().ch >= currentLine.indexOf(trimmed) + trimmed.length) {
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let newLine = pos.line + 1;
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let text = editor.doc.getLine(newLine);
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let ch = text.indexOf(text.trim());
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editor.setCursor({ line: newLine, ch: ch });
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updateIncompleteMark();
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}
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}
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}
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if (result) {
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event.preventDefault();
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}
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}
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});
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function moveToEndOfPreviousLine() {
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let pos = editor.getCursor();
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if (pos.line > 0) {
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let newLine = pos.line - 1;
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let text = editor.doc.getLine(newLine);
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let trimmed = text.trim();
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let ch = text.indexOf(trimmed) + trimmed.length;
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editor.setCursor({ line: newLine, ch: ch });
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}
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}
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function isComplete() {
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if (incompleteMark.lines.length != 0) {
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return false;
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}
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for (var i = 0; i < invalids.length; i++) {
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let arr = invalids[i];
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for (var j = 0; j < arr.length; j++) {
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if (arr[j]) {
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return false;
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}
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}
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}
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return true;
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}
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function getEndPos() {
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return { line: editor.doc.size, ch: editor.doc.getLine(editor.doc.size - 1).length };
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}
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function updateIncompleteMark() {
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incompleteMark.clear();
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incompleteMark = editor.doc.markText(editor.getCursor(), getEndPos(), {
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className: "incomplete"
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});
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}
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String.prototype.hasOnlyWhiteSpaceBeforeIndex = function(index) {
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return this.substring(index) == this.trim();
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};
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