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ISSUE-20455: introduce stronger types for textinput indexing

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Thomas Delacour 2019-04-13 14:35:49 -04:00
parent ce93e017c6
commit 14c8bbb49d
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5 changed files with 570 additions and 324 deletions
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14
components/script/dom/htmlinputelement.rs
View file

@ -45,7 +45,7 @@ use crate::textinput::KeyReaction::{
DispatchInput, Nothing, RedrawSelection, TriggerDefaultAction,
};
use crate::textinput::Lines::Single;
use crate::textinput::{Direction, SelectionDirection, TextInput};
use crate::textinput::{Direction, SelectionDirection, TextInput, UTF16CodeUnits, UTF8Bytes};
use caseless::compatibility_caseless_match_str;
use dom_struct::dom_struct;
use embedder_traits::FilterPattern;
@ -434,7 +434,7 @@ impl LayoutHTMLInputElementHelpers for LayoutDom<HTMLInputElement> {
match (*self.unsafe_get()).input_type() {
InputType::Password => {
let text = get_raw_textinput_value(self);
let sel = textinput.sorted_selection_offsets_range();
let sel = UTF8Bytes::unwrap_range(textinput.sorted_selection_offsets_range());
// Translate indices from the raw value to indices in the replacement value.
let char_start = text[..sel.start].chars().count();
@ -443,9 +443,9 @@ impl LayoutHTMLInputElementHelpers for LayoutDom<HTMLInputElement> {
let bytes_per_char = PASSWORD_REPLACEMENT_CHAR.len_utf8();
Some(char_start * bytes_per_char..char_end * bytes_per_char)
},
input_type if input_type.is_textual() => {
Some(textinput.sorted_selection_offsets_range())
},
input_type if input_type.is_textual() => Some(UTF8Bytes::unwrap_range(
textinput.sorted_selection_offsets_range(),
)),
_ => None,
}
}
@ -1357,7 +1357,7 @@ impl VirtualMethods for HTMLInputElement {
if value < 0 {
textinput.set_max_length(None);
} else {
textinput.set_max_length(Some(value as usize))
textinput.set_max_length(Some(UTF16CodeUnits(value as usize)))
}
},
_ => panic!("Expected an AttrValue::Int"),
@ -1369,7 +1369,7 @@ impl VirtualMethods for HTMLInputElement {
if value < 0 {
textinput.set_min_length(None);
} else {
textinput.set_min_length(Some(value as usize))
textinput.set_min_length(Some(UTF16CodeUnits(value as usize)))
}
},
_ => panic!("Expected an AttrValue::Int"),

15
components/script/dom/htmltextareaelement.rs
View file

@ -31,7 +31,9 @@ use crate::dom::nodelist::NodeList;
use crate::dom::textcontrol::{TextControlElement, TextControlSelection};
use crate::dom::validation::Validatable;
use crate::dom::virtualmethods::VirtualMethods;
use crate::textinput::{Direction, KeyReaction, Lines, SelectionDirection, TextInput};
use crate::textinput::{
Direction, KeyReaction, Lines, SelectionDirection, TextInput, UTF16CodeUnits, UTF8Bytes,
};
use dom_struct::dom_struct;
use html5ever::{LocalName, Prefix};
use script_traits::ScriptToConstellationChan;
@ -89,7 +91,9 @@ impl LayoutHTMLTextAreaElementHelpers for LayoutDom<HTMLTextAreaElement> {
return None;
}
let textinput = (*self.unsafe_get()).textinput.borrow_for_layout();
Some(textinput.sorted_selection_offsets_range())
Some(UTF8Bytes::unwrap_range(
textinput.sorted_selection_offsets_range(),
))
}
#[allow(unsafe_code)]
@ -307,7 +311,8 @@ impl HTMLTextAreaElementMethods for HTMLTextAreaElement {
// https://html.spec.whatwg.org/multipage/#dom-textarea-textlength
fn TextLength(&self) -> u32 {
self.textinput.borrow().utf16_len() as u32
let UTF16CodeUnits(num_units) = self.textinput.borrow().utf16_len();
num_units as u32
}
// https://html.spec.whatwg.org/multipage/#dom-lfe-labels
@ -423,7 +428,7 @@ impl VirtualMethods for HTMLTextAreaElement {
if value < 0 {
textinput.set_max_length(None);
} else {
textinput.set_max_length(Some(value as usize))
textinput.set_max_length(Some(UTF16CodeUnits(value as usize)))
}
},
_ => panic!("Expected an AttrValue::Int"),
@ -435,7 +440,7 @@ impl VirtualMethods for HTMLTextAreaElement {
if value < 0 {
textinput.set_min_length(None);
} else {
textinput.set_min_length(Some(value as usize))
textinput.set_min_length(Some(UTF16CodeUnits(value as usize)))
}
},
_ => panic!("Expected an AttrValue::Int"),

11
components/script/dom/textcontrol.rs
View file

@ -15,7 +15,7 @@ use crate::dom::bindings::str::DOMString;
use crate::dom::event::{EventBubbles, EventCancelable};
use crate::dom::eventtarget::EventTarget;
use crate::dom::node::{window_from_node, Node, NodeDamage};
use crate::textinput::{SelectionDirection, SelectionState, TextInput};
use crate::textinput::{SelectionDirection, SelectionState, TextInput, UTF8Bytes};
use script_traits::ScriptToConstellationChan;
pub trait TextControlElement: DerivedFrom<EventTarget> + DerivedFrom<Node> {
@ -177,7 +177,8 @@ impl<'a, E: TextControlElement> TextControlSelection<'a, E> {
// change the selection state in order to replace the text in the range.
let original_selection_state = self.textinput.borrow().selection_state();
let content_length = self.textinput.borrow().len() as u32;
let UTF8Bytes(content_length) = self.textinput.borrow().len_utf8();
let content_length = content_length as u32;
// Step 5
if start > content_length {
@ -262,11 +263,13 @@ impl<'a, E: TextControlElement> TextControlSelection<'a, E> {
}
fn start(&self) -> u32 {
self.textinput.borrow().selection_start_offset() as u32
let UTF8Bytes(offset) = self.textinput.borrow().selection_start_offset();
offset as u32
}
fn end(&self) -> u32 {
self.textinput.borrow().selection_end_offset() as u32
let UTF8Bytes(offset) = self.textinput.borrow().selection_end_offset();
offset as u32
}
fn direction(&self) -> SelectionDirection {

483
components/script/textinput.rs
View file

@ -10,9 +10,9 @@ use crate::dom::compositionevent::CompositionEvent;
use crate::dom::keyboardevent::KeyboardEvent;
use keyboard_types::{Key, KeyState, Modifiers, ShortcutMatcher};
use std::borrow::ToOwned;
use std::cmp::{max, min};
use std::cmp::min;
use std::default::Default;
use std::ops::Range;
use std::ops::{Add, AddAssign, Range};
use std::usize;
use unicode_segmentation::UnicodeSegmentation;
@ -29,6 +29,97 @@ pub enum SelectionDirection {
None,
}
#[derive(Clone, Copy, Debug, Eq, JSTraceable, MallocSizeOf, Ord, PartialEq, PartialOrd)]
pub struct UTF8Bytes(pub usize);
impl UTF8Bytes {
pub fn zero() -> UTF8Bytes {
UTF8Bytes(0)
}
pub fn one() -> UTF8Bytes {
UTF8Bytes(1)
}
pub fn unwrap_range(byte_range: Range<UTF8Bytes>) -> Range<usize> {
byte_range.start.0..byte_range.end.0
}
pub fn saturating_sub(self, other: UTF8Bytes) -> UTF8Bytes {
if self > other {
UTF8Bytes(self.0 - other.0)
} else {
UTF8Bytes::zero()
}
}
pub fn saturating_sub_assign(&mut self, other: UTF8Bytes) {
if *self > other {
*self = UTF8Bytes(self.0 + other.0)
} else {
*self = UTF8Bytes::zero()
}
}
}
impl Add for UTF8Bytes {
type Output = UTF8Bytes;
fn add(self, other: UTF8Bytes) -> UTF8Bytes {
UTF8Bytes(self.0 + other.0)
}
}
impl AddAssign for UTF8Bytes {
fn add_assign(&mut self, other: UTF8Bytes) {
*self = UTF8Bytes(self.0 + other.0)
}
}
trait StrExt {
fn len_utf8(&self) -> UTF8Bytes;
}
impl StrExt for str {
fn len_utf8(&self) -> UTF8Bytes {
UTF8Bytes(self.len())
}
}
#[derive(Clone, Copy, Debug, JSTraceable, MallocSizeOf, PartialEq, PartialOrd)]
pub struct UTF16CodeUnits(pub usize);
impl UTF16CodeUnits {
pub fn zero() -> UTF16CodeUnits {
UTF16CodeUnits(0)
}
pub fn one() -> UTF16CodeUnits {
UTF16CodeUnits(1)
}
pub fn saturating_sub(self, other: UTF16CodeUnits) -> UTF16CodeUnits {
if self > other {
UTF16CodeUnits(self.0 - other.0)
} else {
UTF16CodeUnits::zero()
}
}
}
impl Add for UTF16CodeUnits {
type Output = UTF16CodeUnits;
fn add(self, other: UTF16CodeUnits) -> UTF16CodeUnits {
UTF16CodeUnits(self.0 + other.0)
}
}
impl AddAssign for UTF16CodeUnits {
fn add_assign(&mut self, other: UTF16CodeUnits) {
*self = UTF16CodeUnits(self.0 + other.0)
}
}
impl From<DOMString> for SelectionDirection {
fn from(direction: DOMString) -> SelectionDirection {
match direction.as_ref() {
@ -53,8 +144,8 @@ impl From<SelectionDirection> for DOMString {
pub struct TextPoint {
/// 0-based line number
pub line: usize,
/// 0-based column number in UTF-8 bytes
pub index: usize,
/// 0-based column number in bytes
pub index: UTF8Bytes,
}
impl TextPoint {
@ -64,7 +155,7 @@ impl TextPoint {
TextPoint {
line,
index: min(self.index, lines[line].len()),
index: min(self.index, lines[line].len_utf8()),
}
}
}
@ -99,8 +190,8 @@ pub struct TextInput<T: ClipboardProvider> {
/// The maximum number of UTF-16 code units this text input is allowed to hold.
///
/// <https://html.spec.whatwg.org/multipage/#attr-fe-maxlength>
max_length: Option<usize>,
min_length: Option<usize>,
max_length: Option<UTF16CodeUnits>,
min_length: Option<UTF16CodeUnits>,
}
/// Resulting action to be taken by the owner of a text input that is handling an event.
@ -113,7 +204,10 @@ pub enum KeyReaction {
impl Default for TextPoint {
fn default() -> TextPoint {
TextPoint { line: 0, index: 0 }
TextPoint {
line: 0,
index: UTF8Bytes::zero(),
}
}
}
@ -137,28 +231,31 @@ pub const CMD_OR_CONTROL: Modifiers = Modifiers::META;
#[cfg(not(target_os = "macos"))]
pub const CMD_OR_CONTROL: Modifiers = Modifiers::CONTROL;
// FIXME this function does not behave as described (if given string has fewer than n
// characters, it returns 0, not the length of the whole string.
/// The length in bytes of the first n characters in a UTF-8 string.
///
/// If the string has fewer than n characters, returns the length of the whole string.
fn len_of_first_n_chars(text: &str, n: usize) -> usize {
/// If n is 0, returns 0
fn len_of_first_n_chars(text: &str, n: usize) -> UTF8Bytes {
match text.char_indices().take(n).last() {
Some((index, ch)) => index + ch.len_utf8(),
None => 0,
Some((index, ch)) => UTF8Bytes(index + ch.len_utf8()),
None => UTF8Bytes::zero(),
}
}
/// The length in bytes of the first n code units a string when encoded in UTF-16.
/// The length in bytes of the first n code units in a string when encoded in UTF-16.
///
/// If the string is fewer than n code units, returns the length of the whole string.
fn len_of_first_n_code_units(text: &str, n: usize) -> usize {
let mut utf8_len = 0;
let mut utf16_len = 0;
fn len_of_first_n_code_units(text: &str, n: UTF16CodeUnits) -> UTF8Bytes {
let mut utf8_len = UTF8Bytes::zero();
let mut utf16_len = UTF16CodeUnits::zero();
for c in text.chars() {
utf16_len += c.len_utf16();
utf16_len += UTF16CodeUnits(c.len_utf16());
if utf16_len > n {
break;
}
utf8_len += c.len_utf8();
utf8_len += UTF8Bytes(c.len_utf8());
}
utf8_len
}
@ -169,8 +266,8 @@ impl<T: ClipboardProvider> TextInput<T> {
lines: Lines,
initial: DOMString,
clipboard_provider: T,
max_length: Option<usize>,
min_length: Option<usize>,
max_length: Option<UTF16CodeUnits>,
min_length: Option<UTF16CodeUnits>,
selection_direction: SelectionDirection,
) -> TextInput<T> {
let mut i = TextInput {
@ -205,11 +302,11 @@ impl<T: ClipboardProvider> TextInput<T> {
self.selection_direction
}
pub fn set_max_length(&mut self, length: Option<usize>) {
pub fn set_max_length(&mut self, length: Option<UTF16CodeUnits>) {
self.max_length = length;
}
pub fn set_min_length(&mut self, length: Option<usize>) {
pub fn set_min_length(&mut self, length: Option<UTF16CodeUnits>) {
self.min_length = length;
}
@ -245,8 +342,8 @@ impl<T: ClipboardProvider> TextInput<T> {
}
}
/// The UTF-8 byte offset of the selection_start()
pub fn selection_start_offset(&self) -> usize {
/// The byte offset of the selection_start()
pub fn selection_start_offset(&self) -> UTF8Bytes {
self.text_point_to_offset(&self.selection_start())
}
@ -259,8 +356,8 @@ impl<T: ClipboardProvider> TextInput<T> {
}
}
/// The UTF-8 byte offset of the selection_end()
pub fn selection_end_offset(&self) -> usize {
/// The byte offset of the selection_end()
pub fn selection_end_offset(&self) -> UTF8Bytes {
self.text_point_to_offset(&self.selection_end())
}
@ -276,10 +373,10 @@ impl<T: ClipboardProvider> TextInput<T> {
(self.selection_start(), self.selection_end())
}
/// Return the selection range as UTF-8 byte offsets from the start of the content.
/// Return the selection range as byte offsets from the start of the content.
///
/// If there is no selection, returns an empty range at the edit point.
pub fn sorted_selection_offsets_range(&self) -> Range<usize> {
pub fn sorted_selection_offsets_range(&self) -> Range<UTF8Bytes> {
self.selection_start_offset()..self.selection_end_offset()
}
@ -299,8 +396,9 @@ impl<T: ClipboardProvider> TextInput<T> {
self.edit_point, self.selection_origin, self.selection_direction
);
if let Some(begin) = self.selection_origin {
let UTF8Bytes(begin_offset) = begin.index;
debug_assert!(begin.line < self.lines.len());
debug_assert!(begin.index <= self.lines[begin.line].len());
debug_assert!(begin_offset <= self.lines[begin.line].len());
match self.selection_direction {
SelectionDirection::None | SelectionDirection::Forward => {
@ -311,8 +409,9 @@ impl<T: ClipboardProvider> TextInput<T> {
}
}
let UTF8Bytes(edit_offset) = self.edit_point.index;
debug_assert!(self.edit_point.line < self.lines.len());
debug_assert!(self.edit_point.index <= self.lines[self.edit_point.line].len());
debug_assert!(edit_offset <= self.lines[self.edit_point.line].len());
}
pub fn get_selection_text(&self) -> Option<String> {
@ -324,9 +423,9 @@ impl<T: ClipboardProvider> TextInput<T> {
}
/// The length of the selected text in UTF-16 code units.
fn selection_utf16_len(&self) -> usize {
self.fold_selection_slices(0usize, |len, slice| {
*len += slice.chars().map(char::len_utf16).sum::<usize>()
fn selection_utf16_len(&self) -> UTF16CodeUnits {
self.fold_selection_slices(UTF16CodeUnits::zero(), |len, slice| {
*len += UTF16CodeUnits(slice.chars().map(char::len_utf16).sum::<usize>())
})
}
@ -336,17 +435,19 @@ impl<T: ClipboardProvider> TextInput<T> {
fn fold_selection_slices<B, F: FnMut(&mut B, &str)>(&self, mut acc: B, mut f: F) -> B {
if self.has_selection() {
let (start, end) = self.sorted_selection_bounds();
let UTF8Bytes(start_offset) = start.index;
let UTF8Bytes(end_offset) = end.index;
if start.line == end.line {
f(&mut acc, &self.lines[start.line][start.index..end.index])
f(&mut acc, &self.lines[start.line][start_offset..end_offset])
} else {
f(&mut acc, &self.lines[start.line][start.index..]);
f(&mut acc, &self.lines[start.line][start_offset..]);
for line in &self.lines[start.line + 1..end.line] {
f(&mut acc, "\n");
f(&mut acc, line);
}
f(&mut acc, "\n");
f(&mut acc, &self.lines[end.line][..end.index])
f(&mut acc, &self.lines[end.line][..end_offset])
}
}
@ -358,39 +459,38 @@ impl<T: ClipboardProvider> TextInput<T> {
return;
}
let (start, end) = self.sorted_selection_bounds();
let allowed_to_insert_count = if let Some(max_length) = self.max_length {
let len_after_selection_replaced = self.utf16_len() - self.selection_utf16_len();
let len_after_selection_replaced =
self.utf16_len().saturating_sub(self.selection_utf16_len());
if len_after_selection_replaced >= max_length {
// If, after deleting the selection, the len is still greater than the max
// length, then don't delete/insert anything
return;
}
max_length - len_after_selection_replaced
max_length.saturating_sub(len_after_selection_replaced)
} else {
usize::MAX
UTF16CodeUnits(usize::MAX)
};
let last_char_index = len_of_first_n_code_units(&*insert, allowed_to_insert_count);
let chars_to_insert = &insert[..last_char_index];
let UTF8Bytes(last_char_index) =
len_of_first_n_code_units(&*insert, allowed_to_insert_count);
let to_insert = &insert[..last_char_index];
self.clear_selection();
let (start, end) = self.sorted_selection_bounds();
let UTF8Bytes(start_offset) = start.index;
let UTF8Bytes(end_offset) = end.index;
let new_lines = {
let prefix = &self.lines[start.line][..start.index];
let suffix = &self.lines[end.line][end.index..];
let prefix = &self.lines[start.line][..start_offset];
let suffix = &self.lines[end.line][end_offset..];
let lines_prefix = &self.lines[..start.line];
let lines_suffix = &self.lines[end.line + 1..];
let mut insert_lines = if self.multiline {
chars_to_insert
.split('\n')
.map(|s| DOMString::from(s))
.collect()
to_insert.split('\n').map(|s| DOMString::from(s)).collect()
} else {
vec![DOMString::from(chars_to_insert)]
vec![DOMString::from(to_insert)]
};
// FIXME(ajeffrey): effecient append for DOMStrings
@ -400,7 +500,7 @@ impl<T: ClipboardProvider> TextInput<T> {
insert_lines[0] = DOMString::from(new_line);
let last_insert_lines_index = insert_lines.len() - 1;
self.edit_point.index = insert_lines[last_insert_lines_index].len();
self.edit_point.index = insert_lines[last_insert_lines_index].len_utf8();
self.edit_point.line = start.line + last_insert_lines_index;
// FIXME(ajeffrey): effecient append for DOMStrings
@ -414,15 +514,16 @@ impl<T: ClipboardProvider> TextInput<T> {
};
self.lines = new_lines;
self.clear_selection();
self.assert_ok_selection();
}
/// Return the length in UTF-8 bytes of the current line under the editing point.
pub fn current_line_length(&self) -> usize {
self.lines[self.edit_point.line].len()
/// Return the length in bytes of the current line under the editing point.
pub fn current_line_length(&self) -> UTF8Bytes {
self.lines[self.edit_point.line].len_utf8()
}
/// Adjust the editing point position by a given of lines. The resulting column is
/// Adjust the editing point position by a given number of lines. The resulting column is
/// as close to the original column position as possible.
pub fn adjust_vertical(&mut self, adjust: isize, select: Selection) {
if !self.multiline {
@ -443,12 +544,15 @@ impl<T: ClipboardProvider> TextInput<T> {
if target_line < 0 {
self.edit_point.line = 0;
self.edit_point.index = 0;
self.edit_point.index = UTF8Bytes::zero();
if self.selection_origin.is_some() &&
(self.selection_direction == SelectionDirection::None ||
self.selection_direction == SelectionDirection::Forward)
{
self.selection_origin = Some(TextPoint { line: 0, index: 0 });
self.selection_origin = Some(TextPoint {
line: 0,
index: UTF8Bytes::zero(),
});
}
return;
} else if target_line as usize >= self.lines.len() {
@ -462,10 +566,12 @@ impl<T: ClipboardProvider> TextInput<T> {
return;
}
let col = self.lines[self.edit_point.line][..self.edit_point.index]
let UTF8Bytes(edit_index) = self.edit_point.index;
let col = self.lines[self.edit_point.line][..edit_index]
.chars()
.count();
self.edit_point.line = target_line as usize;
// NOTE: this adjusts to the nearest complete Unicode codepoint, rather than grapheme cluster
self.edit_point.index = len_of_first_n_chars(&self.lines[self.edit_point.line], col);
if let Some(origin) = self.selection_origin {
if ((self.selection_direction == SelectionDirection::None ||
@ -483,43 +589,38 @@ impl<T: ClipboardProvider> TextInput<T> {
/// Adjust the editing point position by a given number of bytes. If the adjustment
/// requested is larger than is available in the current line, the editing point is
/// adjusted vertically and the process repeats with the remaining adjustment requested.
pub fn adjust_horizontal(&mut self, adjust: isize, select: Selection) {
let direction = if adjust >= 0 {
Direction::Forward
} else {
Direction::Backward
};
pub fn adjust_horizontal(
&mut self,
adjust: UTF8Bytes,
direction: Direction,
select: Selection,
) {
if self.adjust_selection_for_horizontal_change(direction, select) {
return;
}
self.perform_horizontal_adjustment(adjust, select);
self.perform_horizontal_adjustment(adjust, direction, select);
}
/// Adjust the editing point position by exactly one grapheme cluster. If the edit point
/// is at the beginning of the line and the direction is "Backward" or the edit point is at
/// the end of the line and the direction is "Forward", a vertical adjustment is made
pub fn adjust_horizontal_by_one(&mut self, direction: Direction, select: Selection) {
if self.adjust_selection_for_horizontal_change(direction, select) {
return;
}
let adjust = {
let current_line = &self.lines[self.edit_point.line];
match direction {
Direction::Forward => {
match current_line[self.edit_point.index..].graphemes(true).next() {
Some(c) => c.len() as isize,
None => 1, // Going to the next line is a "one byte" offset
}
},
Direction::Backward => {
match current_line[..self.edit_point.index]
.graphemes(true)
.next_back()
{
Some(c) => -(c.len() as isize),
None => -1, // Going to the previous line is a "one byte" offset
}
},
let UTF8Bytes(current_offset) = self.edit_point.index;
let next_ch = match direction {
Direction::Forward => current_line[current_offset..].graphemes(true).next(),
Direction::Backward => current_line[..current_offset].graphemes(true).next_back(),
};
match next_ch {
Some(c) => UTF8Bytes(c.len() as usize),
None => UTF8Bytes::one(), // Going to the next line is a "one byte" offset
}
};
self.perform_horizontal_adjustment(adjust, select);
self.perform_horizontal_adjustment(adjust, direction, select);
}
/// Return whether to cancel the caret move
@ -561,30 +662,47 @@ impl<T: ClipboardProvider> TextInput<T> {
}
}
fn perform_horizontal_adjustment(&mut self, adjust: isize, select: Selection) {
if adjust < 0 {
let remaining = self.edit_point.index;
if adjust.abs() as usize > remaining && self.edit_point.line > 0 {
self.adjust_vertical(-1, select);
self.edit_point.index = self.current_line_length();
self.adjust_horizontal(adjust + remaining as isize + 1, select);
} else {
self.edit_point.index = max(0, self.edit_point.index as isize + adjust) as usize;
}
} else {
let remaining = self.current_line_length() - self.edit_point.index;
if adjust as usize > remaining && self.lines.len() > self.edit_point.line + 1 {
self.adjust_vertical(1, select);
self.edit_point.index = 0;
// one shift is consumed by the change of line, hence the -1
self.adjust_horizontal(adjust - remaining as isize - 1, select);
} else {
self.edit_point.index = min(
self.current_line_length(),
self.edit_point.index + adjust as usize,
);
}
}
fn perform_horizontal_adjustment(
&mut self,
adjust: UTF8Bytes,
direction: Direction,
select: Selection,
) {
match direction {
Direction::Backward => {
let remaining = self.edit_point.index;
if adjust > remaining && self.edit_point.line > 0 {
self.adjust_vertical(-1, select);
self.edit_point.index = self.current_line_length();
// one shift is consumed by the change of line, hence the -1
self.adjust_horizontal(
adjust.saturating_sub(remaining + UTF8Bytes::one()),
direction,
select,
);
} else {
self.edit_point.index = remaining.saturating_sub(adjust);
}
},
Direction::Forward => {
let remaining = self
.current_line_length()
.saturating_sub(self.edit_point.index);
if adjust > remaining && self.lines.len() > self.edit_point.line + 1 {
self.adjust_vertical(1, select);
self.edit_point.index = UTF8Bytes::zero();
// one shift is consumed by the change of line, hence the -1
self.adjust_horizontal(
adjust.saturating_sub(remaining + UTF8Bytes::one()),
direction,
select,
);
} else {
self.edit_point.index =
min(self.current_line_length(), self.edit_point.index + adjust);
}
},
};
self.update_selection_direction();
self.assert_ok_selection();
}
@ -601,10 +719,13 @@ impl<T: ClipboardProvider> TextInput<T> {
/// Select all text in the input control.
pub fn select_all(&mut self) {
self.selection_origin = Some(TextPoint { line: 0, index: 0 });
self.selection_origin = Some(TextPoint {
line: 0,
index: UTF8Bytes::zero(),
});
let last_line = self.lines.len() - 1;
self.edit_point.line = last_line;
self.edit_point.index = self.lines[last_line].len();
self.edit_point.index = self.lines[last_line].len_utf8();
self.selection_direction = SelectionDirection::Forward;
self.assert_ok_selection();
}
@ -625,79 +746,81 @@ impl<T: ClipboardProvider> TextInput<T> {
if self.adjust_selection_for_horizontal_change(direction, select) {
return;
}
let shift_increment: isize = {
let input: &str;
let shift_increment: UTF8Bytes = {
let current_index = self.edit_point.index;
let current_line = self.edit_point.line;
let mut newline_adjustment = UTF8Bytes::zero();
let mut shift_temp = UTF8Bytes::zero();
match direction {
Direction::Backward => {
let remaining = self.edit_point.index;
let current_line = self.edit_point.line;
let mut newline_adjustment = 0;
if remaining == 0 && current_line > 0 {
let input: &str;
if current_index == UTF8Bytes::zero() && current_line > 0 {
input = &self.lines[current_line - 1];
newline_adjustment = 1;
newline_adjustment = UTF8Bytes::one();
} else {
let UTF8Bytes(remaining) = current_index;
input = &self.lines[current_line][..remaining];
}
let mut iter = input.split_word_bounds().rev();
let mut shift_temp: isize = 0;
loop {
match iter.next() {
None => break,
Some(x) => {
shift_temp += -(x.len() as isize);
shift_temp += UTF8Bytes(x.len() as usize);
if x.chars().any(|x| x.is_alphabetic() || x.is_numeric()) {
break;
}
},
}
}
shift_temp - newline_adjustment
},
Direction::Forward => {
let remaining = self.current_line_length() - self.edit_point.index;
let current_line = self.edit_point.line;
let mut newline_adjustment = 0;
if remaining == 0 && self.lines.len() > self.edit_point.line + 1 {
let input: &str;
let remaining = self.current_line_length().saturating_sub(current_index);
if remaining == UTF8Bytes::zero() && self.lines.len() > self.edit_point.line + 1
{
input = &self.lines[current_line + 1];
newline_adjustment = 1;
newline_adjustment = UTF8Bytes::one();
} else {
input = &self.lines[current_line][self.edit_point.index..];
let UTF8Bytes(current_offset) = current_index;
input = &self.lines[current_line][current_offset..];
}
let mut iter = input.split_word_bounds();
let mut shift_temp: isize = 0;
loop {
match iter.next() {
None => break,
Some(x) => {
shift_temp += x.len() as isize;
shift_temp += UTF8Bytes(x.len() as usize);
if x.chars().any(|x| x.is_alphabetic() || x.is_numeric()) {
break;
}
},
}
}
shift_temp + newline_adjustment
},
}
};
shift_temp + newline_adjustment
};
self.adjust_horizontal(shift_increment, select);
self.adjust_horizontal(shift_increment, direction, select);
}
pub fn adjust_horizontal_to_line_end(&mut self, direction: Direction, select: Selection) {
if self.adjust_selection_for_horizontal_change(direction, select) {
return;
}
let shift: isize = {
let shift: usize = {
let current_line = &self.lines[self.edit_point.line];
let UTF8Bytes(current_offset) = self.edit_point.index;
match direction {
Direction::Backward => -(current_line[..self.edit_point.index].len() as isize),
Direction::Forward => current_line[self.edit_point.index..].len() as isize,
Direction::Backward => current_line[..current_offset].len(),
Direction::Forward => current_line[current_offset..].len(),
}
};
self.perform_horizontal_adjustment(shift, select);
self.perform_horizontal_adjustment(UTF8Bytes(shift), direction, select);
}
pub fn adjust_horizontal_to_limit(&mut self, direction: Direction, select: Selection) {
@ -707,11 +830,11 @@ impl<T: ClipboardProvider> TextInput<T> {
match direction {
Direction::Backward => {
self.edit_point.line = 0;
self.edit_point.index = 0;
self.edit_point.index = UTF8Bytes::zero();
},
Direction::Forward => {
self.edit_point.line = &self.lines.len() - 1;
self.edit_point.index = (&self.lines[&self.lines.len() - 1]).len();
self.edit_point.index = (&self.lines[&self.lines.len() - 1]).len_utf8();
},
}
}
@ -827,7 +950,7 @@ impl<T: ClipboardProvider> TextInput<T> {
})
.shortcut(Modifiers::empty(), Key::Enter, || self.handle_return())
.optional_shortcut(macos, Modifiers::empty(), Key::Home, || {
self.edit_point.index = 0;
self.edit_point.index = UTF8Bytes::zero();
KeyReaction::RedrawSelection
})
.optional_shortcut(macos, Modifiers::empty(), Key::End, || {
@ -864,20 +987,26 @@ impl<T: ClipboardProvider> TextInput<T> {
}
/// The length of the content in bytes.
pub fn len(&self) -> usize {
self.lines.iter().fold(0, |m, l| {
m + l.len() + 1 // + 1 for the '\n'
}) - 1
pub fn len_utf8(&self) -> UTF8Bytes {
self.lines
.iter()
.fold(UTF8Bytes::zero(), |m, l| {
m + l.len_utf8() + UTF8Bytes::one() // + 1 for the '\n'
})
.saturating_sub(UTF8Bytes::one())
}
/// The length of the content in bytes.
pub fn utf16_len(&self) -> usize {
self.lines.iter().fold(0, |m, l| {
m + l.chars().map(char::len_utf16).sum::<usize>() + 1 // + 1 for the '\n'
}) - 1
/// The total number of code units required to encode the content in utf16.
pub fn utf16_len(&self) -> UTF16CodeUnits {
self.lines
.iter()
.fold(UTF16CodeUnits::zero(), |m, l| {
m + UTF16CodeUnits(l.chars().map(char::len_utf16).sum::<usize>() + 1) // + 1 for the '\n'
})
.saturating_sub(UTF16CodeUnits::one())
}
/// The length of the content in chars.
/// The length of the content in Unicode code points.
pub fn char_count(&self) -> usize {
self.lines.iter().fold(0, |m, l| {
m + l.chars().count() + 1 // + 1 for the '\n'
@ -925,34 +1054,41 @@ impl<T: ClipboardProvider> TextInput<T> {
}
/// Convert a TextPoint into a byte offset from the start of the content.
fn text_point_to_offset(&self, text_point: &TextPoint) -> usize {
self.lines.iter().enumerate().fold(0, |acc, (i, val)| {
if i < text_point.line {
acc + val.len() + 1 // +1 for the \n
} else {
acc
}
}) + text_point.index
fn text_point_to_offset(&self, text_point: &TextPoint) -> UTF8Bytes {
self.lines
.iter()
.enumerate()
.fold(UTF8Bytes::zero(), |acc, (i, val)| {
if i < text_point.line {
acc + val.len_utf8() + UTF8Bytes::one() // +1 for the \n
} else {
acc
}
}) +
text_point.index
}
/// Convert a byte offset from the start of the content into a TextPoint.
fn offset_to_text_point(&self, abs_point: usize) -> TextPoint {
fn offset_to_text_point(&self, abs_point: UTF8Bytes) -> TextPoint {
let mut index = abs_point;
let mut line = 0;
let last_line_idx = self.lines.len() - 1;
self.lines.iter().enumerate().fold(0, |acc, (i, val)| {
if i != last_line_idx {
let line_end = val.len();
let new_acc = acc + line_end + 1;
if abs_point >= new_acc && index > line_end {
index -= line_end + 1;
line += 1;
self.lines
.iter()
.enumerate()
.fold(UTF8Bytes::zero(), |acc, (i, val)| {
if i != last_line_idx {
let line_end = val.len_utf8();
let new_acc = acc + line_end + UTF8Bytes::one();
if abs_point >= new_acc && index > line_end {
index.saturating_sub_assign(line_end + UTF8Bytes::one());
line += 1;
}
new_acc
} else {
acc
}
new_acc
} else {
acc
}
});
});
TextPoint {
line: line,
@ -961,9 +1097,9 @@ impl<T: ClipboardProvider> TextInput<T> {
}
pub fn set_selection_range(&mut self, start: u32, end: u32, direction: SelectionDirection) {
let mut start = start as usize;
let mut end = end as usize;
let text_end = self.get_content().len();
let mut start = UTF8Bytes(start as usize);
let mut end = UTF8Bytes(end as usize);
let text_end = self.get_content().len_utf8();
if end > text_end {
end = text_end;
@ -987,11 +1123,12 @@ impl<T: ClipboardProvider> TextInput<T> {
self.assert_ok_selection();
}
/// Set the edit point index position based off of a given grapheme cluster offset
pub fn set_edit_point_index(&mut self, index: usize) {
let byte_size = self.lines[self.edit_point.line]
let byte_offset = self.lines[self.edit_point.line]
.graphemes(true)
.take(index)
.fold(0, |acc, x| acc + x.len());
self.edit_point.index = byte_size;
.fold(UTF8Bytes::zero(), |acc, x| acc + x.len_utf8());
self.edit_point.index = byte_offset;
}
}

371
tests/unit/script/textinput.rs
View file

@ -10,7 +10,10 @@
use keyboard_types::{Key, Modifiers};
use script::clipboard_provider::DummyClipboardContext;
use script::test::DOMString;
use script::textinput::{Direction, Lines, Selection, SelectionDirection, TextInput, TextPoint};
use script::textinput::{
Direction, Lines, Selection, SelectionDirection, TextInput, TextPoint, UTF16CodeUnits,
UTF8Bytes,
};
fn text_input(lines: Lines, s: &str) -> TextInput<DummyClipboardContext> {
TextInput::new(
@ -29,7 +32,7 @@ fn test_set_content_ignores_max_length() {
Lines::Single,
DOMString::from(""),
DummyClipboardContext::new(""),
Some(1),
Some(UTF16CodeUnits::one()),
None,
SelectionDirection::None,
);
@ -44,13 +47,13 @@ fn test_textinput_when_inserting_multiple_lines_over_a_selection_respects_max_le
Lines::Multiple,
DOMString::from("hello\nworld"),
DummyClipboardContext::new(""),
Some(17),
Some(UTF16CodeUnits(17)),
None,
SelectionDirection::None,
);
textinput.adjust_horizontal(1, Selection::NotSelected);
textinput.adjust_horizontal(3, Selection::Selected);
textinput.adjust_horizontal(UTF8Bytes::one(), Direction::Forward, Selection::NotSelected);
textinput.adjust_horizontal(UTF8Bytes(3), Direction::Forward, Selection::Selected);
textinput.adjust_vertical(1, Selection::Selected);
// Selection is now "hello\n
@ -69,7 +72,7 @@ fn test_textinput_when_inserting_multiple_lines_still_respects_max_length() {
Lines::Multiple,
DOMString::from("hello\nworld"),
DummyClipboardContext::new(""),
Some(17),
Some(UTF16CodeUnits(17)),
None,
SelectionDirection::None,
);
@ -87,7 +90,7 @@ fn test_textinput_when_content_is_already_longer_than_max_length_and_theres_no_s
Lines::Single,
DOMString::from("abc"),
DummyClipboardContext::new(""),
Some(1),
Some(UTF16CodeUnits::one()),
None,
SelectionDirection::None,
);
@ -104,7 +107,7 @@ fn test_multi_line_textinput_with_maxlength_doesnt_allow_appending_characters_wh
Lines::Multiple,
DOMString::from("abc\nd"),
DummyClipboardContext::new(""),
Some(5),
Some(UTF16CodeUnits(5)),
None,
SelectionDirection::None,
);
@ -121,13 +124,13 @@ fn test_single_line_textinput_with_max_length_doesnt_allow_appending_characters_
Lines::Single,
DOMString::from("abcde"),
DummyClipboardContext::new(""),
Some(5),
Some(UTF16CodeUnits(5)),
None,
SelectionDirection::None,
);
textinput.adjust_horizontal(1, Selection::NotSelected);
textinput.adjust_horizontal(3, Selection::Selected);
textinput.adjust_horizontal(UTF8Bytes::one(), Direction::Forward, Selection::NotSelected);
textinput.adjust_horizontal(UTF8Bytes(3), Direction::Forward, Selection::Selected);
// Selection is now "abcde"
// ---
@ -143,7 +146,7 @@ fn test_single_line_textinput_with_max_length_multibyte() {
Lines::Single,
DOMString::from(""),
DummyClipboardContext::new(""),
Some(2),
Some(UTF16CodeUnits(2)),
None,
SelectionDirection::None,
);
@ -162,7 +165,7 @@ fn test_single_line_textinput_with_max_length_multi_code_unit() {
Lines::Single,
DOMString::from(""),
DummyClipboardContext::new(""),
Some(3),
Some(UTF16CodeUnits(3)),
None,
SelectionDirection::None,
);
@ -183,7 +186,7 @@ fn test_single_line_textinput_with_max_length_inside_char() {
Lines::Single,
DOMString::from("\u{10437}"),
DummyClipboardContext::new(""),
Some(1),
Some(UTF16CodeUnits::one()),
None,
SelectionDirection::None,
);
@ -199,7 +202,7 @@ fn test_single_line_textinput_with_max_length_doesnt_allow_appending_characters_
Lines::Single,
DOMString::from("a"),
DummyClipboardContext::new(""),
Some(1),
Some(UTF16CodeUnits::one()),
None,
SelectionDirection::None,
);
@ -211,14 +214,14 @@ fn test_single_line_textinput_with_max_length_doesnt_allow_appending_characters_
#[test]
fn test_textinput_delete_char() {
let mut textinput = text_input(Lines::Single, "abcdefg");
textinput.adjust_horizontal(2, Selection::NotSelected);
textinput.adjust_horizontal(UTF8Bytes(2), Direction::Forward, Selection::NotSelected);
textinput.delete_char(Direction::Backward);
assert_eq!(textinput.get_content(), "acdefg");
textinput.delete_char(Direction::Forward);
assert_eq!(textinput.get_content(), "adefg");
textinput.adjust_horizontal(2, Selection::Selected);
textinput.adjust_horizontal(UTF8Bytes(2), Direction::Forward, Selection::Selected);
textinput.delete_char(Direction::Forward);
assert_eq!(textinput.get_content(), "afg");
@ -238,11 +241,11 @@ fn test_textinput_delete_char() {
#[test]
fn test_textinput_insert_char() {
let mut textinput = text_input(Lines::Single, "abcdefg");
textinput.adjust_horizontal(2, Selection::NotSelected);
textinput.adjust_horizontal(UTF8Bytes(2), Direction::Forward, Selection::NotSelected);
textinput.insert_char('a');
assert_eq!(textinput.get_content(), "abacdefg");
textinput.adjust_horizontal(2, Selection::Selected);
textinput.adjust_horizontal(UTF8Bytes(2), Direction::Forward, Selection::Selected);
textinput.insert_char('b');
assert_eq!(textinput.get_content(), "ababefg");
@ -258,25 +261,25 @@ fn test_textinput_insert_char() {
#[test]
fn test_textinput_get_sorted_selection() {
let mut textinput = text_input(Lines::Single, "abcdefg");
textinput.adjust_horizontal(2, Selection::NotSelected);
textinput.adjust_horizontal(2, Selection::Selected);
textinput.adjust_horizontal(UTF8Bytes(2), Direction::Forward, Selection::NotSelected);
textinput.adjust_horizontal(UTF8Bytes(2), Direction::Forward, Selection::Selected);
let (start, end) = textinput.sorted_selection_bounds();
assert_eq!(start.index, 2);
assert_eq!(end.index, 4);
assert_eq!(start.index, UTF8Bytes(2));
assert_eq!(end.index, UTF8Bytes(4));
textinput.clear_selection();
textinput.adjust_horizontal(-2, Selection::Selected);
textinput.adjust_horizontal(UTF8Bytes(2), Direction::Backward, Selection::Selected);
let (start, end) = textinput.sorted_selection_bounds();
assert_eq!(start.index, 2);
assert_eq!(end.index, 4);
assert_eq!(start.index, UTF8Bytes(2));
assert_eq!(end.index, UTF8Bytes(4));
}
#[test]
fn test_textinput_replace_selection() {
let mut textinput = text_input(Lines::Single, "abcdefg");
textinput.adjust_horizontal(2, Selection::NotSelected);
textinput.adjust_horizontal(2, Selection::Selected);
textinput.adjust_horizontal(UTF8Bytes(2), Direction::Forward, Selection::NotSelected);
textinput.adjust_horizontal(UTF8Bytes(2), Direction::Forward, Selection::Selected);
textinput.replace_selection(DOMString::from("xyz"));
assert_eq!(textinput.get_content(), "abxyzefg");
@ -294,34 +297,34 @@ fn test_textinput_replace_selection_multibyte_char() {
#[test]
fn test_textinput_current_line_length() {
let mut textinput = text_input(Lines::Multiple, "abc\nde\nf");
assert_eq!(textinput.current_line_length(), 3);
assert_eq!(textinput.current_line_length(), UTF8Bytes(3));
textinput.adjust_vertical(1, Selection::NotSelected);
assert_eq!(textinput.current_line_length(), 2);
assert_eq!(textinput.current_line_length(), UTF8Bytes(2));
textinput.adjust_vertical(1, Selection::NotSelected);
assert_eq!(textinput.current_line_length(), 1);
assert_eq!(textinput.current_line_length(), UTF8Bytes::one());
}
#[test]
fn test_textinput_adjust_vertical() {
let mut textinput = text_input(Lines::Multiple, "abc\nde\nf");
textinput.adjust_horizontal(3, Selection::NotSelected);
textinput.adjust_horizontal(UTF8Bytes(3), Direction::Forward, Selection::NotSelected);
textinput.adjust_vertical(1, Selection::NotSelected);
assert_eq!(textinput.edit_point().line, 1);
assert_eq!(textinput.edit_point().index, 2);
assert_eq!(textinput.edit_point().index, UTF8Bytes(2));
textinput.adjust_vertical(-1, Selection::NotSelected);
assert_eq!(textinput.edit_point().line, 0);
assert_eq!(textinput.edit_point().index, 2);
assert_eq!(textinput.edit_point().index, UTF8Bytes(2));
textinput.adjust_vertical(2, Selection::NotSelected);
assert_eq!(textinput.edit_point().line, 2);
assert_eq!(textinput.edit_point().index, 1);
assert_eq!(textinput.edit_point().index, UTF8Bytes(1));
textinput.adjust_vertical(-1, Selection::Selected);
assert_eq!(textinput.edit_point().line, 1);
assert_eq!(textinput.edit_point().index, 1);
assert_eq!(textinput.edit_point().index, UTF8Bytes(1));
}
#[test]
@ -330,31 +333,35 @@ fn test_textinput_adjust_vertical_multibyte() {
textinput.adjust_horizontal_by_one(Direction::Forward, Selection::NotSelected);
assert_eq!(textinput.edit_point().line, 0);
assert_eq!(textinput.edit_point().index, 2);
assert_eq!(textinput.edit_point().index, UTF8Bytes(2));
textinput.adjust_vertical(1, Selection::NotSelected);
assert_eq!(textinput.edit_point().line, 1);
assert_eq!(textinput.edit_point().index, 1);
assert_eq!(textinput.edit_point().index, UTF8Bytes(1));
}
#[test]
fn test_textinput_adjust_horizontal() {
let mut textinput = text_input(Lines::Multiple, "abc\nde\nf");
textinput.adjust_horizontal(4, Selection::NotSelected);
textinput.adjust_horizontal(UTF8Bytes(4), Direction::Forward, Selection::NotSelected);
assert_eq!(textinput.edit_point().line, 1);
assert_eq!(textinput.edit_point().index, 0);
assert_eq!(textinput.edit_point().index, UTF8Bytes::zero());
textinput.adjust_horizontal(1, Selection::NotSelected);
textinput.adjust_horizontal(UTF8Bytes::one(), Direction::Forward, Selection::NotSelected);
assert_eq!(textinput.edit_point().line, 1);
assert_eq!(textinput.edit_point().index, 1);
assert_eq!(textinput.edit_point().index, UTF8Bytes(1));
textinput.adjust_horizontal(2, Selection::NotSelected);
textinput.adjust_horizontal(UTF8Bytes(2), Direction::Forward, Selection::NotSelected);
assert_eq!(textinput.edit_point().line, 2);
assert_eq!(textinput.edit_point().index, 0);
assert_eq!(textinput.edit_point().index, UTF8Bytes::zero());
textinput.adjust_horizontal(-1, Selection::NotSelected);
textinput.adjust_horizontal(
UTF8Bytes::one(),
Direction::Backward,
Selection::NotSelected,
);
assert_eq!(textinput.edit_point().line, 1);
assert_eq!(textinput.edit_point().index, 2);
assert_eq!(textinput.edit_point().index, UTF8Bytes(2));
}
#[test]
@ -364,44 +371,44 @@ fn test_textinput_adjust_horizontal_by_word() {
textinput.adjust_horizontal_by_word(Direction::Forward, Selection::NotSelected);
textinput.adjust_horizontal_by_word(Direction::Forward, Selection::NotSelected);
assert_eq!(textinput.edit_point().line, 0);
assert_eq!(textinput.edit_point().index, 7);
assert_eq!(textinput.edit_point().index, UTF8Bytes(7));
textinput.adjust_horizontal_by_word(Direction::Backward, Selection::NotSelected);
assert_eq!(textinput.edit_point().line, 0);
assert_eq!(textinput.edit_point().index, 4);
assert_eq!(textinput.edit_point().index, UTF8Bytes(4));
textinput.adjust_horizontal_by_word(Direction::Backward, Selection::NotSelected);
assert_eq!(textinput.edit_point().line, 0);
assert_eq!(textinput.edit_point().index, 0);
assert_eq!(textinput.edit_point().index, UTF8Bytes::zero());
// Test new line case of movement word by word based on UAX#29 rules
let mut textinput_2 = text_input(Lines::Multiple, "abc\ndef");
textinput_2.adjust_horizontal_by_word(Direction::Forward, Selection::NotSelected);
textinput_2.adjust_horizontal_by_word(Direction::Forward, Selection::NotSelected);
assert_eq!(textinput_2.edit_point().line, 1);
assert_eq!(textinput_2.edit_point().index, 3);
assert_eq!(textinput_2.edit_point().index, UTF8Bytes(3));
textinput_2.adjust_horizontal_by_word(Direction::Backward, Selection::NotSelected);
assert_eq!(textinput_2.edit_point().line, 1);
assert_eq!(textinput_2.edit_point().index, 0);
assert_eq!(textinput_2.edit_point().index, UTF8Bytes::zero());
textinput_2.adjust_horizontal_by_word(Direction::Backward, Selection::NotSelected);
assert_eq!(textinput_2.edit_point().line, 0);
assert_eq!(textinput_2.edit_point().index, 0);
assert_eq!(textinput_2.edit_point().index, UTF8Bytes::zero());
// Test non-standard sized characters case of movement word by word based on UAX#29 rules
let mut textinput_3 = text_input(Lines::Single, "áéc d🌠bc");
textinput_3.adjust_horizontal_by_word(Direction::Forward, Selection::NotSelected);
assert_eq!(textinput_3.edit_point().line, 0);
assert_eq!(textinput_3.edit_point().index, 5);
assert_eq!(textinput_3.edit_point().index, UTF8Bytes(5));
textinput_3.adjust_horizontal_by_word(Direction::Forward, Selection::NotSelected);
assert_eq!(textinput_3.edit_point().line, 0);
assert_eq!(textinput_3.edit_point().index, 7);
assert_eq!(textinput_3.edit_point().index, UTF8Bytes(7));
textinput_3.adjust_horizontal_by_word(Direction::Forward, Selection::NotSelected);
assert_eq!(textinput_3.edit_point().line, 0);
assert_eq!(textinput_3.edit_point().index, 13);
assert_eq!(textinput_3.edit_point().index, UTF8Bytes(13));
textinput_3.adjust_horizontal_by_word(Direction::Backward, Selection::NotSelected);
assert_eq!(textinput_3.edit_point().line, 0);
assert_eq!(textinput_3.edit_point().index, 11);
assert_eq!(textinput_3.edit_point().index, UTF8Bytes(11));
textinput_3.adjust_horizontal_by_word(Direction::Backward, Selection::NotSelected);
assert_eq!(textinput_3.edit_point().line, 0);
assert_eq!(textinput_3.edit_point().index, 6);
assert_eq!(textinput_3.edit_point().index, UTF8Bytes(6));
}
#[test]
@ -410,28 +417,28 @@ fn test_textinput_adjust_horizontal_to_line_end() {
let mut textinput = text_input(Lines::Single, "abc def");
textinput.adjust_horizontal_to_line_end(Direction::Forward, Selection::NotSelected);
assert_eq!(textinput.edit_point().line, 0);
assert_eq!(textinput.edit_point().index, 7);
assert_eq!(textinput.edit_point().index, UTF8Bytes(7));
// Test new line case of movement to end based on UAX#29 rules
let mut textinput_2 = text_input(Lines::Multiple, "abc\ndef");
textinput_2.adjust_horizontal_to_line_end(Direction::Forward, Selection::NotSelected);
assert_eq!(textinput_2.edit_point().line, 0);
assert_eq!(textinput_2.edit_point().index, 3);
assert_eq!(textinput_2.edit_point().index, UTF8Bytes(3));
textinput_2.adjust_horizontal_to_line_end(Direction::Forward, Selection::NotSelected);
assert_eq!(textinput_2.edit_point().line, 0);
assert_eq!(textinput_2.edit_point().index, 3);
assert_eq!(textinput_2.edit_point().index, UTF8Bytes(3));
textinput_2.adjust_horizontal_to_line_end(Direction::Backward, Selection::NotSelected);
assert_eq!(textinput_2.edit_point().line, 0);
assert_eq!(textinput_2.edit_point().index, 0);
assert_eq!(textinput_2.edit_point().index, UTF8Bytes::zero());
// Test non-standard sized characters case of movement to end based on UAX#29 rules
let mut textinput_3 = text_input(Lines::Single, "áéc d🌠bc");
textinput_3.adjust_horizontal_to_line_end(Direction::Forward, Selection::NotSelected);
assert_eq!(textinput_3.edit_point().line, 0);
assert_eq!(textinput_3.edit_point().index, 13);
assert_eq!(textinput_3.edit_point().index, UTF8Bytes(13));
textinput_3.adjust_horizontal_to_line_end(Direction::Backward, Selection::NotSelected);
assert_eq!(textinput_3.edit_point().line, 0);
assert_eq!(textinput_3.edit_point().index, 0);
assert_eq!(textinput_3.edit_point().index, UTF8Bytes::zero());
}
#[test]
@ -440,56 +447,64 @@ fn test_navigation_keyboard_shortcuts() {
// Test that CMD + Right moves to the end of the current line.
textinput.handle_keydown_aux(Key::ArrowRight, Modifiers::META, true);
assert_eq!(textinput.edit_point().index, 11);
assert_eq!(textinput.edit_point().index, UTF8Bytes(11));
// Test that CMD + Right moves to the beginning of the current line.
textinput.handle_keydown_aux(Key::ArrowLeft, Modifiers::META, true);
assert_eq!(textinput.edit_point().index, 0);
assert_eq!(textinput.edit_point().index, UTF8Bytes::zero());
// Test that CTRL + ALT + E moves to the end of the current line also.
textinput.handle_keydown_aux(
Key::Character("e".to_owned()),
Modifiers::CONTROL | Modifiers::ALT,
true,
);
assert_eq!(textinput.edit_point().index, 11);
assert_eq!(textinput.edit_point().index, UTF8Bytes(11));
// Test that CTRL + ALT + A moves to the beginning of the current line also.
textinput.handle_keydown_aux(
Key::Character("a".to_owned()),
Modifiers::CONTROL | Modifiers::ALT,
true,
);
assert_eq!(textinput.edit_point().index, 0);
assert_eq!(textinput.edit_point().index, UTF8Bytes::zero());
// Test that ALT + Right moves to the end of the word.
textinput.handle_keydown_aux(Key::ArrowRight, Modifiers::ALT, true);
assert_eq!(textinput.edit_point().index, 5);
assert_eq!(textinput.edit_point().index, UTF8Bytes(5));
// Test that CTRL + ALT + F moves to the end of the word also.
textinput.handle_keydown_aux(
Key::Character("f".to_owned()),
Modifiers::CONTROL | Modifiers::ALT,
true,
);
assert_eq!(textinput.edit_point().index, 11);
assert_eq!(textinput.edit_point().index, UTF8Bytes(11));
// Test that ALT + Left moves to the end of the word.
textinput.handle_keydown_aux(Key::ArrowLeft, Modifiers::ALT, true);
assert_eq!(textinput.edit_point().index, 6);
assert_eq!(textinput.edit_point().index, UTF8Bytes(6));
// Test that CTRL + ALT + B moves to the end of the word also.
textinput.handle_keydown_aux(
Key::Character("b".to_owned()),
Modifiers::CONTROL | Modifiers::ALT,
true,
);
assert_eq!(textinput.edit_point().index, 0);
assert_eq!(textinput.edit_point().index, UTF8Bytes::zero());
}
#[test]
fn test_textinput_handle_return() {
let mut single_line_textinput = text_input(Lines::Single, "abcdef");
single_line_textinput.adjust_horizontal(3, Selection::NotSelected);
single_line_textinput.adjust_horizontal(
UTF8Bytes(3),
Direction::Forward,
Selection::NotSelected,
);
single_line_textinput.handle_return();
assert_eq!(single_line_textinput.get_content(), "abcdef");
let mut multi_line_textinput = text_input(Lines::Multiple, "abcdef");
multi_line_textinput.adjust_horizontal(3, Selection::NotSelected);
multi_line_textinput.adjust_horizontal(
UTF8Bytes(3),
Direction::Forward,
Selection::NotSelected,
);
multi_line_textinput.handle_return();
assert_eq!(multi_line_textinput.get_content(), "abc\ndef");
}
@ -498,11 +513,11 @@ fn test_textinput_handle_return() {
fn test_textinput_select_all() {
let mut textinput = text_input(Lines::Multiple, "abc\nde\nf");
assert_eq!(textinput.edit_point().line, 0);
assert_eq!(textinput.edit_point().index, 0);
assert_eq!(textinput.edit_point().index, UTF8Bytes::zero());
textinput.select_all();
assert_eq!(textinput.edit_point().line, 2);
assert_eq!(textinput.edit_point().index, 1);
assert_eq!(textinput.edit_point().index, UTF8Bytes(1));
}
#[test]
@ -523,15 +538,15 @@ fn test_textinput_set_content() {
assert_eq!(textinput.get_content(), "abc\nf");
assert_eq!(textinput.edit_point().line, 0);
assert_eq!(textinput.edit_point().index, 0);
assert_eq!(textinput.edit_point().index, UTF8Bytes::zero());
textinput.adjust_horizontal(3, Selection::Selected);
textinput.adjust_horizontal(UTF8Bytes(3), Direction::Forward, Selection::Selected);
assert_eq!(textinput.edit_point().line, 0);
assert_eq!(textinput.edit_point().index, 3);
assert_eq!(textinput.edit_point().index, UTF8Bytes(3));
textinput.set_content(DOMString::from("de"));
assert_eq!(textinput.get_content(), "de");
assert_eq!(textinput.edit_point().line, 0);
assert_eq!(textinput.edit_point().index, 2);
assert_eq!(textinput.edit_point().index, UTF8Bytes(2));
}
#[test]
@ -550,7 +565,7 @@ fn test_clipboard_paste() {
SelectionDirection::None,
);
assert_eq!(textinput.get_content(), "defg");
assert_eq!(textinput.edit_point().index, 0);
assert_eq!(textinput.edit_point().index, UTF8Bytes::zero());
textinput.handle_keydown_aux(Key::Character("v".to_owned()), MODIFIERS, false);
assert_eq!(textinput.get_content(), "abcdefg");
}
@ -560,51 +575,59 @@ fn test_textinput_cursor_position_correct_after_clearing_selection() {
let mut textinput = text_input(Lines::Single, "abcdef");
// Single line - Forward
textinput.adjust_horizontal(3, Selection::Selected);
textinput.adjust_horizontal(1, Selection::NotSelected);
assert_eq!(textinput.edit_point().index, 3);
textinput.adjust_horizontal(UTF8Bytes(3), Direction::Forward, Selection::Selected);
textinput.adjust_horizontal(UTF8Bytes::one(), Direction::Forward, Selection::NotSelected);
assert_eq!(textinput.edit_point().index, UTF8Bytes(3));
textinput.adjust_horizontal(-3, Selection::NotSelected);
textinput.adjust_horizontal(3, Selection::Selected);
textinput.adjust_horizontal(UTF8Bytes(3), Direction::Backward, Selection::NotSelected);
textinput.adjust_horizontal(UTF8Bytes(3), Direction::Forward, Selection::Selected);
textinput.adjust_horizontal_by_one(Direction::Forward, Selection::NotSelected);
assert_eq!(textinput.edit_point().index, 3);
assert_eq!(textinput.edit_point().index, UTF8Bytes(3));
// Single line - Backward
textinput.adjust_horizontal(-3, Selection::NotSelected);
textinput.adjust_horizontal(3, Selection::Selected);
textinput.adjust_horizontal(-1, Selection::NotSelected);
assert_eq!(textinput.edit_point().index, 0);
textinput.adjust_horizontal(UTF8Bytes(3), Direction::Backward, Selection::NotSelected);
textinput.adjust_horizontal(UTF8Bytes(3), Direction::Forward, Selection::Selected);
textinput.adjust_horizontal(
UTF8Bytes::one(),
Direction::Backward,
Selection::NotSelected,
);
assert_eq!(textinput.edit_point().index, UTF8Bytes::zero());
textinput.adjust_horizontal(-3, Selection::NotSelected);
textinput.adjust_horizontal(3, Selection::Selected);
textinput.adjust_horizontal(UTF8Bytes(3), Direction::Backward, Selection::NotSelected);
textinput.adjust_horizontal(UTF8Bytes(3), Direction::Forward, Selection::Selected);
textinput.adjust_horizontal_by_one(Direction::Backward, Selection::NotSelected);
assert_eq!(textinput.edit_point().index, 0);
assert_eq!(textinput.edit_point().index, UTF8Bytes::zero());
let mut textinput = text_input(Lines::Multiple, "abc\nde\nf");
// Multiline - Forward
textinput.adjust_horizontal(4, Selection::Selected);
textinput.adjust_horizontal(1, Selection::NotSelected);
assert_eq!(textinput.edit_point().index, 0);
textinput.adjust_horizontal(UTF8Bytes(4), Direction::Forward, Selection::Selected);
textinput.adjust_horizontal(UTF8Bytes::one(), Direction::Forward, Selection::NotSelected);
assert_eq!(textinput.edit_point().index, UTF8Bytes::zero());
assert_eq!(textinput.edit_point().line, 1);
textinput.adjust_horizontal(-4, Selection::NotSelected);
textinput.adjust_horizontal(4, Selection::Selected);
textinput.adjust_horizontal(UTF8Bytes(4), Direction::Backward, Selection::NotSelected);
textinput.adjust_horizontal(UTF8Bytes(4), Direction::Forward, Selection::Selected);
textinput.adjust_horizontal_by_one(Direction::Forward, Selection::NotSelected);
assert_eq!(textinput.edit_point().index, 0);
assert_eq!(textinput.edit_point().index, UTF8Bytes::zero());
assert_eq!(textinput.edit_point().line, 1);
// Multiline - Backward
textinput.adjust_horizontal(-4, Selection::NotSelected);
textinput.adjust_horizontal(4, Selection::Selected);
textinput.adjust_horizontal(-1, Selection::NotSelected);
assert_eq!(textinput.edit_point().index, 0);
textinput.adjust_horizontal(UTF8Bytes(4), Direction::Backward, Selection::NotSelected);
textinput.adjust_horizontal(UTF8Bytes(4), Direction::Forward, Selection::Selected);
textinput.adjust_horizontal(
UTF8Bytes::one(),
Direction::Backward,
Selection::NotSelected,
);
assert_eq!(textinput.edit_point().index, UTF8Bytes::zero());
assert_eq!(textinput.edit_point().line, 0);
textinput.adjust_horizontal(-4, Selection::NotSelected);
textinput.adjust_horizontal(4, Selection::Selected);
textinput.adjust_horizontal(UTF8Bytes(4), Direction::Backward, Selection::NotSelected);
textinput.adjust_horizontal(UTF8Bytes(4), Direction::Forward, Selection::Selected);
textinput.adjust_horizontal_by_one(Direction::Backward, Selection::NotSelected);
assert_eq!(textinput.edit_point().index, 0);
assert_eq!(textinput.edit_point().index, UTF8Bytes::zero());
assert_eq!(textinput.edit_point().line, 0);
}
@ -613,16 +636,16 @@ fn test_textinput_set_selection_with_direction() {
let mut textinput = text_input(Lines::Single, "abcdef");
textinput.set_selection_range(2, 6, SelectionDirection::Forward);
assert_eq!(textinput.edit_point().line, 0);
assert_eq!(textinput.edit_point().index, 6);
assert_eq!(textinput.edit_point().index, UTF8Bytes(6));
assert_eq!(textinput.selection_direction(), SelectionDirection::Forward);
assert!(textinput.selection_origin().is_some());
assert_eq!(textinput.selection_origin().unwrap().line, 0);
assert_eq!(textinput.selection_origin().unwrap().index, 2);
assert_eq!(textinput.selection_origin().unwrap().index, UTF8Bytes(2));
textinput.set_selection_range(2, 6, SelectionDirection::Backward);
assert_eq!(textinput.edit_point().line, 0);
assert_eq!(textinput.edit_point().index, 2);
assert_eq!(textinput.edit_point().index, UTF8Bytes(2));
assert_eq!(
textinput.selection_direction(),
SelectionDirection::Backward
@ -630,37 +653,43 @@ fn test_textinput_set_selection_with_direction() {
assert!(textinput.selection_origin().is_some());
assert_eq!(textinput.selection_origin().unwrap().line, 0);
assert_eq!(textinput.selection_origin().unwrap().index, 6);
assert_eq!(textinput.selection_origin().unwrap().index, UTF8Bytes(6));
textinput = text_input(Lines::Multiple, "\n\n");
textinput.set_selection_range(0, 1, SelectionDirection::Forward);
assert_eq!(textinput.edit_point().line, 1);
assert_eq!(textinput.edit_point().index, 0);
assert_eq!(textinput.edit_point().index, UTF8Bytes::zero());
assert_eq!(textinput.selection_direction(), SelectionDirection::Forward);
assert!(textinput.selection_origin().is_some());
assert_eq!(textinput.selection_origin().unwrap().line, 0);
assert_eq!(textinput.selection_origin().unwrap().index, 0);
assert_eq!(
textinput.selection_origin().unwrap().index,
UTF8Bytes::zero()
);
textinput = text_input(Lines::Multiple, "\n");
textinput.set_selection_range(0, 1, SelectionDirection::Forward);
assert_eq!(textinput.edit_point().line, 1);
assert_eq!(textinput.edit_point().index, 0);
assert_eq!(textinput.edit_point().index, UTF8Bytes::zero());
assert_eq!(textinput.selection_direction(), SelectionDirection::Forward);
assert!(textinput.selection_origin().is_some());
assert_eq!(textinput.selection_origin().unwrap().line, 0);
assert_eq!(textinput.selection_origin().unwrap().index, 0);
assert_eq!(
textinput.selection_origin().unwrap().index,
UTF8Bytes::zero()
);
}
#[test]
fn test_textinput_unicode_handling() {
let mut textinput = text_input(Lines::Single, "éèùµ$£");
assert_eq!(textinput.edit_point().index, 0);
assert_eq!(textinput.edit_point().index, UTF8Bytes::zero());
textinput.set_edit_point_index(1);
assert_eq!(textinput.edit_point().index, 2);
assert_eq!(textinput.edit_point().index, UTF8Bytes(2));
textinput.set_edit_point_index(4);
assert_eq!(textinput.edit_point().index, 8);
assert_eq!(textinput.edit_point().index, UTF8Bytes(8));
}
#[test]
@ -668,40 +697,100 @@ fn test_selection_bounds() {
let mut textinput = text_input(Lines::Single, "abcdef");
assert_eq!(
TextPoint { line: 0, index: 0 },
TextPoint {
line: 0,
index: UTF8Bytes::zero()
},
textinput.selection_origin_or_edit_point()
);
assert_eq!(TextPoint { line: 0, index: 0 }, textinput.selection_start());
assert_eq!(TextPoint { line: 0, index: 0 }, textinput.selection_end());
assert_eq!(
TextPoint {
line: 0,
index: UTF8Bytes::zero()
},
textinput.selection_start()
);
assert_eq!(
TextPoint {
line: 0,
index: UTF8Bytes::zero()
},
textinput.selection_end()
);
textinput.set_selection_range(2, 5, SelectionDirection::Forward);
assert_eq!(
TextPoint { line: 0, index: 2 },
TextPoint {
line: 0,
index: UTF8Bytes(2)
},
textinput.selection_origin_or_edit_point()
);
assert_eq!(TextPoint { line: 0, index: 2 }, textinput.selection_start());
assert_eq!(TextPoint { line: 0, index: 5 }, textinput.selection_end());
assert_eq!(2, textinput.selection_start_offset());
assert_eq!(5, textinput.selection_end_offset());
assert_eq!(
TextPoint {
line: 0,
index: UTF8Bytes(2)
},
textinput.selection_start()
);
assert_eq!(
TextPoint {
line: 0,
index: UTF8Bytes(5)
},
textinput.selection_end()
);
assert_eq!(UTF8Bytes(2), textinput.selection_start_offset());
assert_eq!(UTF8Bytes(5), textinput.selection_end_offset());
textinput.set_selection_range(3, 6, SelectionDirection::Backward);
assert_eq!(
TextPoint { line: 0, index: 6 },
TextPoint {
line: 0,
index: UTF8Bytes(6)
},
textinput.selection_origin_or_edit_point()
);
assert_eq!(TextPoint { line: 0, index: 3 }, textinput.selection_start());
assert_eq!(TextPoint { line: 0, index: 6 }, textinput.selection_end());
assert_eq!(3, textinput.selection_start_offset());
assert_eq!(6, textinput.selection_end_offset());
assert_eq!(
TextPoint {
line: 0,
index: UTF8Bytes(3)
},
textinput.selection_start()
);
assert_eq!(
TextPoint {
line: 0,
index: UTF8Bytes(6)
},
textinput.selection_end()
);
assert_eq!(UTF8Bytes(3), textinput.selection_start_offset());
assert_eq!(UTF8Bytes(6), textinput.selection_end_offset());
textinput = text_input(Lines::Multiple, "\n\n");
textinput.set_selection_range(0, 1, SelectionDirection::Forward);
assert_eq!(
TextPoint { line: 0, index: 0 },
TextPoint {
line: 0,
index: UTF8Bytes::zero()
},
textinput.selection_origin_or_edit_point()
);
assert_eq!(TextPoint { line: 0, index: 0 }, textinput.selection_start());
assert_eq!(TextPoint { line: 1, index: 0 }, textinput.selection_end());
assert_eq!(
TextPoint {
line: 0,
index: UTF8Bytes::zero()
},
textinput.selection_start()
);
assert_eq!(
TextPoint {
line: 1,
index: UTF8Bytes::zero()
},
textinput.selection_end()
);
}
#[test]
@ -710,6 +799,18 @@ fn test_select_all() {
textinput.set_selection_range(2, 3, SelectionDirection::Backward);
textinput.select_all();
assert_eq!(textinput.selection_direction(), SelectionDirection::Forward);
assert_eq!(TextPoint { line: 0, index: 0 }, textinput.selection_start());
assert_eq!(TextPoint { line: 0, index: 3 }, textinput.selection_end());
assert_eq!(
TextPoint {
line: 0,
index: UTF8Bytes::zero()
},
textinput.selection_start()
);
assert_eq!(
TextPoint {
line: 0,
index: UTF8Bytes(3)
},
textinput.selection_end()
);
}