diff --git a/examples/restricted_input.rs b/examples/restricted_input.rs
new file mode 100644
index 0000000000000000000000000000000000000000..c43c67814d312cbdc52df9aaa13ae89f12fd054f
--- /dev/null
+++ b/examples/restricted_input.rs
@@ -0,0 +1,61 @@
+use bevy::prelude::*;
+use bevy_cosmic_edit::{
+ change_active_editor_sprite, change_active_editor_ui, ActiveEditor, CosmicAttrs,
+ CosmicEditPlugin, CosmicEditUiBundle, CosmicFontSystem, CosmicMaxChars, CosmicMaxLines,
+ CosmicMetrics, CosmicText,
+};
+use cosmic_text::{Attrs, AttrsOwned};
+
+fn setup(mut commands: Commands, mut font_system: ResMut<CosmicFontSystem>) {
+ commands.spawn(Camera2dBundle::default());
+
+ let attrs = AttrsOwned::new(Attrs::new().color(cosmic_text::Color::rgb(69, 69, 69)));
+
+ let editor = commands
+ .spawn(
+ CosmicEditUiBundle {
+ border_color: Color::LIME_GREEN.into(),
+ style: Style {
+ // Size and position of text box
+ border: UiRect::all(Val::Px(4.)),
+ width: Val::Percent(20.),
+ height: Val::Px(50.),
+ left: Val::Percent(40.),
+ top: Val::Px(100.),
+ ..default()
+ },
+ cosmic_attrs: CosmicAttrs(attrs.clone()),
+ cosmic_metrics: CosmicMetrics {
+ font_size: 16.,
+ line_height: 16.,
+ ..Default::default()
+ },
+ max_chars: CosmicMaxChars(15),
+ max_lines: CosmicMaxLines(1),
+ ..default()
+ }
+ .set_text(
+ CosmicText::OneStyle(
+ "1 line 15 chars! But this\n is longer\n than is\n allowed by\n the limits.\n"
+ .into(),
+ ),
+ attrs,
+ &mut font_system.0,
+ ),
+ )
+ .id();
+
+ commands.insert_resource(ActiveEditor {
+ entity: Some(editor),
+ });
+}
+
+fn main() {
+ App::new()
+ .add_plugins(DefaultPlugins)
+ .add_plugins(CosmicEditPlugin::default())
+ .add_systems(Startup, setup)
+ .add_systems(Update, change_active_editor_ui)
+ .add_systems(Update, change_active_editor_sprite)
+ .run();
+}
diff --git a/src/lib.rs b/src/lib.rs
index ce3c3489063e023eaf44397a714002f5cc07fde6..3c5dca71b1a92c77914ef8992916e6223af000ec 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -33,6 +33,7 @@ pub enum CosmicTextPosition {
TopLeft,
}
+// TODO docs
#[derive(Clone, Component)]
pub struct CosmicMetrics {
pub font_size: f32,
@@ -202,6 +203,12 @@ impl Default for CosmicAttrs {
#[derive(Component, Default)]
pub struct CosmicBackground(pub Option<Handle<Image>>);
+#[derive(Component, Default)]
+pub struct CosmicMaxLines(pub usize);
+
+#[derive(Component, Default)]
+pub struct CosmicMaxChars(pub usize);
+
#[derive(Bundle)]
pub struct CosmicEditUiBundle {
// Bevy UI bits
@@ -251,6 +258,10 @@ pub struct CosmicEditUiBundle {
pub cosmic_attrs: CosmicAttrs,
/// bg img
pub background_image: CosmicBackground,
+ /// How many lines are allowed in buffer, 0 for no limit
+ pub max_lines: CosmicMaxLines,
+ /// How many characters are allowed in buffer, 0 for no limit
+ pub max_chars: CosmicMaxChars,
}
impl CosmicEditUiBundle {
@@ -260,11 +271,93 @@ impl CosmicEditUiBundle {
attrs: AttrsOwned,
font_system: &mut FontSystem,
) -> Self {
+ let text = trim_text(text, self.max_chars.0, self.max_lines.0);
self.editor.set_text(text, attrs, font_system);
self
}
}
+fn trim_text(text: CosmicText, max_chars: usize, max_lines: usize) -> CosmicText {
+ if max_chars == 0 && max_lines == 0 {
+ // no limits, no work to do
+ return text;
+ }
+
+ match text {
+ CosmicText::OneStyle(mut string) => {
+ string.truncate(max_chars);
+
+ if max_lines == 0 {
+ return CosmicText::OneStyle(string);
+ }
+
+ let mut line_acc = 0;
+ let mut char_pos = 0;
+ for c in string.chars() {
+ char_pos += 1;
+ if c == 0xA as char {
+ line_acc += 1;
+ if line_acc >= max_lines {
+ // break text to pos
+ string.truncate(char_pos);
+ break;
+ }
+ }
+ }
+
+ CosmicText::OneStyle(string)
+ }
+ CosmicText::MultiStyle(lines) => {
+ let mut char_acc = 0;
+ let mut line_acc = 0;
+
+ let mut trimmed_styles = vec![];
+
+ for line in lines.iter() {
+ line_acc += 1;
+ char_acc += 1; // count newlines for consistent behaviour
+
+ if (line_acc >= max_lines && max_lines > 0)
+ || (char_acc >= max_chars && max_chars > 0)
+ {
+ break;
+ }
+
+ let mut strs = vec![];
+
+ for (string, attrs) in line.iter() {
+ if char_acc >= max_chars && max_chars > 0 {
+ break;
+ }
+
+ let mut string = string.clone();
+
+ if max_chars > 0 {
+ string.truncate(max_chars - char_acc);
+ char_acc += string.len();
+ }
+
+ if max_lines > 0 {
+ for c in string.chars() {
+ if c == 0xA as char {
+ line_acc += 1;
+ char_acc += 1; // count newlines for consistent behaviour
+ if line_acc >= max_lines {
+ break;
+ }
+ }
+ }
+ }
+
+ strs.push((string, attrs.clone()));
+ }
+ trimmed_styles.push(strs);
+ }
+ CosmicText::MultiStyle(trimmed_styles)
+ }
+ }
+}
+
impl Default for CosmicEditUiBundle {
fn default() -> Self {
Self {
@@ -287,6 +380,8 @@ impl Default for CosmicEditUiBundle {
cosmic_edit_history: Default::default(),
cosmic_attrs: Default::default(),
background_image: Default::default(),
+ max_lines: Default::default(),
+ max_chars: Default::default(),
}
}
}
@@ -317,6 +412,10 @@ pub struct CosmicEditSpriteBundle {
pub cosmic_attrs: CosmicAttrs,
/// bg img
pub background_image: CosmicBackground,
+ /// How many lines are allowed in buffer, 0 for no limit
+ pub max_lines: CosmicMaxLines,
+ /// How many characters are allowed in buffer, 0 for no limit
+ pub max_chars: CosmicMaxChars,
}
impl CosmicEditSpriteBundle {
@@ -326,6 +425,7 @@ impl CosmicEditSpriteBundle {
attrs: AttrsOwned,
font_system: &mut FontSystem,
) -> Self {
+ let text = trim_text(text, self.max_chars.0, self.max_lines.0);
self.editor.set_text(text, attrs, font_system);
self
}
@@ -340,15 +440,15 @@ impl Default for CosmicEditSpriteBundle {
texture: DEFAULT_IMAGE_HANDLE.typed(),
visibility: Visibility::Hidden,
computed_visibility: Default::default(),
- //
background_color: Default::default(),
- //
editor: Default::default(),
text_position: Default::default(),
cosmic_metrics: Default::default(),
cosmic_edit_history: Default::default(),
cosmic_attrs: Default::default(),
background_image: Default::default(),
+ max_lines: Default::default(),
+ max_chars: Default::default(),
}
}
}
@@ -608,6 +708,8 @@ pub fn cosmic_edit_bevy_events(
&GlobalTransform,
&CosmicAttrs,
&CosmicTextPosition,
+ &CosmicMaxLines,
+ &CosmicMaxChars,
Entity,
),
With<CosmicEditor>,
@@ -625,8 +727,16 @@ pub fn cosmic_edit_bevy_events(
let primary_window = windows.single();
let scale_factor = primary_window.scale_factor() as f32;
let (camera, camera_transform) = camera_q.iter().find(|(c, _)| c.is_active).unwrap();
- for (mut editor, mut edit_history, node_transform, attrs, text_position, entity) in
- &mut cosmic_edit_query.iter_mut()
+ for (
+ mut editor,
+ mut edit_history,
+ node_transform,
+ attrs,
+ text_position,
+ max_lines,
+ max_chars,
+ entity,
+ ) in &mut cosmic_edit_query.iter_mut()
{
let readonly = readonly_query.get(entity).is_ok();
@@ -639,7 +749,6 @@ pub fn cosmic_edit_bevy_events(
}
};
- let editor = &mut editor.0;
let attrs = &attrs.0;
if active_editor.entity == Some(entity) {
@@ -657,10 +766,10 @@ pub fn cosmic_edit_bevy_events(
let option = keys.any_pressed([KeyCode::AltLeft, KeyCode::AltRight]);
// if shift key is pressed
- let already_has_selection = editor.select_opt().is_some();
+ let already_has_selection = editor.0.select_opt().is_some();
if shift && !already_has_selection {
- let cursor = editor.cursor();
- editor.set_select_opt(Some(cursor));
+ let cursor = editor.0.cursor();
+ editor.0.set_select_opt(Some(cursor));
}
#[cfg(target_os = "macos")]
@@ -669,87 +778,87 @@ pub fn cosmic_edit_bevy_events(
let should_jump = command;
if should_jump && keys.just_pressed(KeyCode::Left) {
- editor.action(&mut font_system.0, Action::PreviousWord);
+ editor.0.action(&mut font_system.0, Action::PreviousWord);
if !shift {
- editor.set_select_opt(None);
+ editor.0.set_select_opt(None);
}
return;
}
if should_jump && keys.just_pressed(KeyCode::Right) {
- editor.action(&mut font_system.0, Action::NextWord);
+ editor.0.action(&mut font_system.0, Action::NextWord);
if !shift {
- editor.set_select_opt(None);
+ editor.0.set_select_opt(None);
}
return;
}
if should_jump && keys.just_pressed(KeyCode::Home) {
- editor.action(&mut font_system.0, Action::BufferStart);
+ editor.0.action(&mut font_system.0, Action::BufferStart);
// there's a bug with cosmic text where it doesn't update the visual cursor for this action
// TODO: fix upstream
- editor.buffer_mut().set_redraw(true);
+ editor.0.buffer_mut().set_redraw(true);
if !shift {
- editor.set_select_opt(None);
+ editor.0.set_select_opt(None);
}
return;
}
if should_jump && keys.just_pressed(KeyCode::End) {
- editor.action(&mut font_system.0, Action::BufferEnd);
+ editor.0.action(&mut font_system.0, Action::BufferEnd);
// there's a bug with cosmic text where it doesn't update the visual cursor for this action
// TODO: fix upstream
- editor.buffer_mut().set_redraw(true);
+ editor.0.buffer_mut().set_redraw(true);
if !shift {
- editor.set_select_opt(None);
+ editor.0.set_select_opt(None);
}
return;
}
if keys.just_pressed(KeyCode::Left) {
- editor.action(&mut font_system.0, Action::Left);
+ editor.0.action(&mut font_system.0, Action::Left);
if !shift {
- editor.set_select_opt(None);
+ editor.0.set_select_opt(None);
}
return;
}
if keys.just_pressed(KeyCode::Right) {
- editor.action(&mut font_system.0, Action::Right);
+ editor.0.action(&mut font_system.0, Action::Right);
if !shift {
- editor.set_select_opt(None);
+ editor.0.set_select_opt(None);
}
return;
}
if keys.just_pressed(KeyCode::Up) {
- editor.action(&mut font_system.0, Action::Up);
+ editor.0.action(&mut font_system.0, Action::Up);
if !shift {
- editor.set_select_opt(None);
+ editor.0.set_select_opt(None);
}
return;
}
if keys.just_pressed(KeyCode::Down) {
- editor.action(&mut font_system.0, Action::Down);
+ editor.0.action(&mut font_system.0, Action::Down);
if !shift {
- editor.set_select_opt(None);
+ editor.0.set_select_opt(None);
}
return;
}
if !readonly && keys.just_pressed(KeyCode::Back) {
#[cfg(target_arch = "wasm32")]
- editor.action(&mut font_system.0, Action::Backspace);
+ editor.0.action(&mut font_system.0, Action::Backspace);
*is_deleting = true;
}
if !readonly && keys.just_released(KeyCode::Back) {
*is_deleting = false;
}
if !readonly && keys.just_pressed(KeyCode::Delete) {
- editor.action(&mut font_system.0, Action::Delete);
+ editor.0.action(&mut font_system.0, Action::Delete);
}
if keys.just_pressed(KeyCode::Escape) {
- editor.action(&mut font_system.0, Action::Escape);
+ editor.0.action(&mut font_system.0, Action::Escape);
}
if command && keys.just_pressed(KeyCode::A) {
- editor.action(&mut font_system.0, Action::BufferEnd);
- let current_cursor = editor.cursor();
- editor.set_select_opt(Some(Cursor {
+ editor.0.action(&mut font_system.0, Action::BufferEnd);
+ let current_cursor = editor.0.cursor();
+ editor.0.set_select_opt(Some(Cursor {
line: 0,
index: 0,
affinity: current_cursor.affinity,
@@ -758,30 +867,30 @@ pub fn cosmic_edit_bevy_events(
return;
}
if keys.just_pressed(KeyCode::Home) {
- editor.action(&mut font_system.0, Action::Home);
+ editor.0.action(&mut font_system.0, Action::Home);
if !shift {
- editor.set_select_opt(None);
+ editor.0.set_select_opt(None);
}
return;
}
if keys.just_pressed(KeyCode::End) {
- editor.action(&mut font_system.0, Action::End);
+ editor.0.action(&mut font_system.0, Action::End);
if !shift {
- editor.set_select_opt(None);
+ editor.0.set_select_opt(None);
}
return;
}
if keys.just_pressed(KeyCode::PageUp) {
- editor.action(&mut font_system.0, Action::PageUp);
+ editor.0.action(&mut font_system.0, Action::PageUp);
if !shift {
- editor.set_select_opt(None);
+ editor.0.set_select_opt(None);
}
return;
}
if keys.just_pressed(KeyCode::PageDown) {
- editor.action(&mut font_system.0, Action::PageDown);
+ editor.0.action(&mut font_system.0, Action::PageDown);
if !shift {
- editor.set_select_opt(None);
+ editor.0.set_select_opt(None);
}
return;
}
@@ -802,7 +911,7 @@ pub fn cosmic_edit_bevy_events(
}
let idx = edit_history.current_edit + 1;
if let Some(current_edit) = edits.get(idx) {
- editor.buffer_mut().lines.clear();
+ editor.0.buffer_mut().lines.clear();
for line in current_edit.lines.iter() {
let mut line_text = String::new();
let mut attrs_list = AttrsList::new(attrs.as_attrs());
@@ -812,14 +921,14 @@ pub fn cosmic_edit_bevy_events(
let end = line_text.len();
attrs_list.add_span(start..end, attrs.as_attrs());
}
- editor.buffer_mut().lines.push(BufferLine::new(
+ editor.0.buffer_mut().lines.push(BufferLine::new(
line_text,
attrs_list,
Shaping::Advanced,
));
}
- editor.set_cursor(current_edit.cursor);
- editor.buffer_mut().set_redraw(true);
+ editor.0.set_cursor(current_edit.cursor);
+ editor.0.buffer_mut().set_redraw(true);
edit_history.current_edit += 1;
}
*undoredo_duration = Some(Duration::from_millis(now_ms as u64));
@@ -838,7 +947,7 @@ pub fn cosmic_edit_bevy_events(
}
let idx = edit_history.current_edit - 1;
if let Some(current_edit) = edits.get(idx) {
- editor.buffer_mut().lines.clear();
+ editor.0.buffer_mut().lines.clear();
for line in current_edit.lines.iter() {
let mut line_text = String::new();
let mut attrs_list = AttrsList::new(attrs.as_attrs());
@@ -848,14 +957,14 @@ pub fn cosmic_edit_bevy_events(
let end = line_text.len();
attrs_list.add_span(start..end, attrs.as_attrs());
}
- editor.buffer_mut().lines.push(BufferLine::new(
+ editor.0.buffer_mut().lines.push(BufferLine::new(
line_text,
attrs_list,
Shaping::Advanced,
));
}
- editor.set_cursor(current_edit.cursor);
- editor.buffer_mut().set_redraw(true);
+ editor.0.set_cursor(current_edit.cursor);
+ editor.0.buffer_mut().set_redraw(true);
edit_history.current_edit -= 1;
}
*undoredo_duration = Some(Duration::from_millis(now_ms as u64));
@@ -867,22 +976,32 @@ pub fn cosmic_edit_bevy_events(
{
if let Ok(mut clipboard) = arboard::Clipboard::new() {
if command && keys.just_pressed(KeyCode::C) {
- if let Some(text) = editor.copy_selection() {
+ if let Some(text) = editor.0.copy_selection() {
clipboard.set_text(text).unwrap();
return;
}
}
if !readonly && command && keys.just_pressed(KeyCode::X) {
- if let Some(text) = editor.copy_selection() {
+ if let Some(text) = editor.0.copy_selection() {
clipboard.set_text(text).unwrap();
- editor.delete_selection();
+ editor.0.delete_selection();
}
is_clipboard = true;
}
if !readonly && command && keys.just_pressed(KeyCode::V) {
if let Ok(text) = clipboard.get_text() {
for c in text.chars() {
- editor.action(&mut font_system.0, Action::Insert(c));
+ if max_chars.0 == 0 || editor.get_text().len() < max_chars.0 {
+ if c == 0xA as char {
+ if max_lines.0 == 0
+ || editor.0.buffer().lines.len() < max_lines.0
+ {
+ editor.0.action(&mut font_system.0, Action::Insert(c));
+ }
+ } else {
+ editor.0.action(&mut font_system.0, Action::Insert(c));
+ }
+ }
}
}
is_clipboard = true;
@@ -890,9 +1009,10 @@ pub fn cosmic_edit_bevy_events(
}
}
let (offset_x, offset_y) = match text_position {
- CosmicTextPosition::Center => {
- (get_x_offset(editor.buffer()), get_y_offset(editor.buffer()))
- }
+ CosmicTextPosition::Center => (
+ get_x_offset(editor.0.buffer()),
+ get_y_offset(editor.0.buffer()),
+ ),
CosmicTextPosition::TopLeft => (0, 0),
};
let point = |node_cursor_pos: (f32, f32)| {
@@ -913,9 +1033,9 @@ pub fn cosmic_edit_bevy_events(
) {
let (x, y) = point(node_cursor_pos);
if shift {
- editor.action(&mut font_system.0, Action::Drag { x, y });
+ editor.0.action(&mut font_system.0, Action::Drag { x, y });
} else {
- editor.action(&mut font_system.0, Action::Click { x, y });
+ editor.0.action(&mut font_system.0, Action::Click { x, y });
}
}
return;
@@ -931,9 +1051,9 @@ pub fn cosmic_edit_bevy_events(
) {
let (x, y) = point(node_cursor_pos);
if active_editor.is_changed() && !shift {
- editor.action(&mut font_system.0, Action::Click { x, y });
+ editor.0.action(&mut font_system.0, Action::Click { x, y });
} else {
- editor.action(&mut font_system.0, Action::Drag { x, y });
+ editor.0.action(&mut font_system.0, Action::Drag { x, y });
}
}
return;
@@ -941,7 +1061,7 @@ pub fn cosmic_edit_bevy_events(
for ev in scroll_evr.iter() {
match ev.unit {
MouseScrollUnit::Line => {
- editor.action(
+ editor.0.action(
&mut font_system.0,
Action::Scroll {
lines: -ev.y as i32,
@@ -949,8 +1069,8 @@ pub fn cosmic_edit_bevy_events(
);
}
MouseScrollUnit::Pixel => {
- let line_height = editor.buffer().metrics().line_height;
- editor.action(
+ let line_height = editor.0.buffer().metrics().line_height;
+ editor.0.action(
&mut font_system.0,
Action::Scroll {
lines: -(ev.y / line_height) as i32,
@@ -965,9 +1085,10 @@ pub fn cosmic_edit_bevy_events(
}
// fix for issue #8
- if let Some(select) = editor.select_opt() {
- if editor.cursor().line == select.line && editor.cursor().index == select.index {
- editor.set_select_opt(None);
+ if let Some(select) = editor.0.select_opt() {
+ if editor.0.cursor().line == select.line && editor.0.cursor().index == select.index
+ {
+ editor.0.set_select_opt(None);
}
}
@@ -976,17 +1097,23 @@ pub fn cosmic_edit_bevy_events(
if keys.just_pressed(KeyCode::Return) {
is_return = true;
is_edit = true;
- // to have new line on wasm rather than E
- editor.action(&mut font_system.0, Action::Insert('\n'));
+ if (max_lines.0 == 0 || editor.0.buffer().lines.len() < max_lines.0)
+ && (max_chars.0 == 0 || editor.get_text().len() < max_chars.0)
+ {
+ // to have new line on wasm rather than E
+ editor.0.action(&mut font_system.0, Action::Insert('\n'));
+ }
}
if !(is_clipboard || is_return) {
for char_ev in char_evr.iter() {
is_edit = true;
if *is_deleting {
- editor.action(&mut font_system.0, Action::Backspace);
- } else {
- editor.action(&mut font_system.0, Action::Insert(char_ev.char));
+ editor.0.action(&mut font_system.0, Action::Backspace);
+ } else if max_chars.0 == 0 || editor.get_text().len() < max_chars.0 {
+ editor
+ .0
+ .action(&mut font_system.0, Action::Insert(char_ev.char));
}
}
}
@@ -999,11 +1126,11 @@ pub fn cosmic_edit_bevy_events(
if Duration::from_millis(now_ms as u64) - last_edit_duration
> Duration::from_millis(150)
{
- save_edit_history(editor, attrs, &mut edit_history);
+ save_edit_history(&mut editor.0, attrs, &mut edit_history);
*edits_duration = Some(Duration::from_millis(now_ms as u64));
}
} else {
- save_edit_history(editor, attrs, &mut edit_history);
+ save_edit_history(&mut editor.0, attrs, &mut edit_history);
*edits_duration = Some(Duration::from_millis(now_ms as u64));
}
}