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MarkdownToolbar: Add tests for surrounding the current word with **

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This commit is contained in:
Vishesh Handa
2020-08-14 21:17:29 +02:00
parent 206b426033
commit c6d5ebc0b2
2 changed files with 97 additions and 45 deletions
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99
lib/widgets/markdown_toolbar.dart
View File

@ -32,51 +32,7 @@ class MarkdownToolBar extends StatelessWidget {
}
void _modifyCurrentWord(String char) {
var selection = textController.value.selection;
var text = textController.value.text;
print('Base offset: ${selection.baseOffset}');
print('Extent offset: ${selection.extentOffset}');
var cursorPos = selection.baseOffset;
if (cursorPos == -1) {
cursorPos = 0;
}
print('CursorPos: $cursorPos');
var wordStartPos =
text.lastIndexOf(' ', cursorPos == 0 ? 0 : cursorPos - 1);
if (wordStartPos == -1) {
wordStartPos = 0;
}
var wordEndPos = text.indexOf(' ', cursorPos);
if (wordEndPos == -1) {
wordEndPos = text.length;
}
print('Word Start: $wordStartPos');
print('Word End: $wordEndPos');
print('Word: ${text.substring(wordStartPos, wordEndPos)}');
// Check if already present
if (text.startsWith(char, wordStartPos)) {
print('Removing `$char`');
textController.text = text.replaceFirst(char, '', wordStartPos);
textController.selection =
TextSelection.collapsed(offset: cursorPos - (char.length * 2));
return;
}
print('Adding `$char`');
textController.text = text.replaceRange(wordStartPos, wordStartPos, char);
wordEndPos += char.length;
textController.text =
text.replaceRange(wordEndPos - 1, wordEndPos - 1, char);
textController.selection =
TextSelection.collapsed(offset: cursorPos + (char.length * 2));
print('$char');
textController.value = modifyCurrentWord(textController.value, char);
}
}
@ -135,3 +91,56 @@ TextEditingValue modifyCurrentLine(
selection: TextSelection.collapsed(offset: cursorPos + char.length),
);
}
TextEditingValue modifyCurrentWord(
TextEditingValue textEditingValue,
String char,
) {
var selection = textEditingValue.selection;
var text = textEditingValue.text;
print('Base offset: ${selection.baseOffset}');
print('Extent offset: ${selection.extentOffset}');
var cursorPos = selection.baseOffset;
if (cursorPos == -1) {
cursorPos = 0;
}
print('CursorPos: $cursorPos');
var wordStartPos = text.lastIndexOf(' ', cursorPos == 0 ? 0 : cursorPos - 1);
if (wordStartPos == -1) {
wordStartPos = 0;
}
var wordEndPos = text.indexOf(' ', cursorPos);
if (wordEndPos == -1) {
wordEndPos = text.length;
}
print('Word Start: $wordStartPos');
print('Word End: $wordEndPos');
print('Word: ${text.substring(wordStartPos, wordEndPos)}');
// Check if already present
if (text.startsWith(char, wordStartPos) &&
text.startsWith(char, wordEndPos - char.length)) {
text = text.replaceFirst(char, '', wordStartPos);
wordEndPos -= char.length;
return TextEditingValue(
text: text.replaceFirst(char, '', wordEndPos - char.length),
selection: TextSelection.collapsed(
offset: wordEndPos - char.length,
),
);
}
print('Adding `$char`');
text = text.replaceRange(wordStartPos, wordStartPos, char);
wordEndPos += char.length;
return TextEditingValue(
text: text.replaceRange(wordEndPos, wordEndPos, char),
selection: TextSelection.collapsed(offset: wordEndPos),
);
}

43
test/markdown_toolbar_test.dart
View File

@ -103,4 +103,47 @@ void main() {
char: '# ',
);
});
//
// Word based
//
void _testWord({
@required String before,
@required int beforeOffset,
@required String after,
@required int afterOffset,
@required String char,
}) {
var val = TextEditingValue(
text: before,
selection: TextSelection.collapsed(offset: beforeOffset),
);
var expectedVal = TextEditingValue(
text: after,
selection: TextSelection.collapsed(offset: afterOffset),
);
expect(modifyCurrentWord(val, char), expectedVal);
}
test("Surrounds the first word", () {
_testWord(
before: 'Hello',
beforeOffset: 3,
after: '**Hello**',
afterOffset: 7,
char: '**',
);
});
test("Removing from the first word", () {
_testWord(
before: '**Hello**',
beforeOffset: 3,
after: 'Hello',
afterOffset: 5,
char: '**',
);
});
}