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Add set_clipboard_context function and relevant plumbing. Use Option more consistantly (less unwraps) in textinput's selection handling.

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This commit is contained in:
Avi Weinstock 2015-06-18 11:58:03 -04:00
parent 52c2049f2a
commit f86252a60b
5 changed files with 83 additions and 48 deletions
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10
components/script/clipboard_provider.rs
View file

@ -13,7 +13,7 @@ pub trait ClipboardProvider {
// blocking method to get the clipboard contents
fn clipboard_contents(&mut self) -> String;
// blocking method to set the clipboard contents
fn set_clipboard_contents(&mut self, &str);
fn set_clipboard_contents(&mut self, String);
}
impl ClipboardProvider for ConstellationChan {
@ -22,8 +22,8 @@ impl ClipboardProvider for ConstellationChan {
self.0.send(ConstellationMsg::GetClipboardContents(tx)).unwrap();
rx.recv().unwrap()
}
fn set_clipboard_contents(&mut self, _: &str) {
panic!("not yet implemented");
fn set_clipboard_contents(&mut self, s: String) {
self.0.send(ConstellationMsg::SetClipboardContents(s)).unwrap();
}
}
@ -43,7 +43,7 @@ impl ClipboardProvider for DummyClipboardContext {
fn clipboard_contents(&mut self) -> String {
self.content.clone()
}
fn set_clipboard_contents(&mut self, s: &str) {
self.content = s.to_owned();
fn set_clipboard_contents(&mut self, s: String) {
self.content = s;
}
}

108
components/script/textinput.rs
View file

@ -143,51 +143,71 @@ impl<T: ClipboardProvider> TextInput<T> {
self.replace_selection(s.into());
}
pub fn get_sorted_selection(&self) -> (TextPoint, TextPoint) {
let begin = self.selection_begin.unwrap();
let end = self.edit_point;
pub fn get_sorted_selection(&self) -> Option<(TextPoint, TextPoint)> {
self.selection_begin.map(|begin| {
let end = self.edit_point;
if begin.line < end.line || (begin.line == end.line && begin.index < end.index) {
(begin, end)
} else {
(end, begin)
}
if begin.line < end.line || (begin.line == end.line && begin.index < end.index) {
(begin, end)
} else {
(end, begin)
}
})
}
pub fn get_selection_text(&self) -> Option<String> {
self.get_sorted_selection().map(|(begin, end)| {
if begin.line != end.line {
let mut s = String::new();
s.push_str(self.lines[begin.line].slice_chars(begin.index, self.lines[begin.line].len()));
for (_, line) in self.lines.iter().enumerate().filter(|&(i,_)| begin.line < i && i < end.line) {
s.push_str("\n");
s.push_str(line);
}
s.push_str("\n");
s.push_str(self.lines[end.line].slice_chars(0, end.index));
s
} else {
self.lines[begin.line].slice_chars(begin.index, end.index).to_owned()
}
})
}
pub fn replace_selection(&mut self, insert: String) {
let (begin, end) = self.get_sorted_selection();
self.clear_selection();
if let Some((begin, end)) = self.get_sorted_selection() {
self.clear_selection();
let new_lines = {
let prefix = self.lines[begin.line].slice_chars(0, begin.index);
let suffix = self.lines[end.line].slice_chars(end.index, self.lines[end.line].chars().count());
let lines_prefix = &self.lines[..begin.line];
let lines_suffix = &self.lines[end.line + 1..];
let new_lines = {
let prefix = self.lines[begin.line].slice_chars(0, begin.index);
let suffix = self.lines[end.line].slice_chars(end.index, self.lines[end.line].chars().count());
let lines_prefix = &self.lines[..begin.line];
let lines_suffix = &self.lines[end.line + 1..];
let mut insert_lines = if self.multiline {
insert.split('\n').map(|s| s.to_owned()).collect()
} else {
vec!(insert)
let mut insert_lines = if self.multiline {
insert.split('\n').map(|s| s.to_owned()).collect()
} else {
vec!(insert)
};
let mut new_line = prefix.to_owned();
new_line.push_str(&insert_lines[0]);
insert_lines[0] = new_line;
let last_insert_lines_index = insert_lines.len() - 1;
self.edit_point.index = insert_lines[last_insert_lines_index].chars().count();
self.edit_point.line = begin.line + last_insert_lines_index;
insert_lines[last_insert_lines_index].push_str(suffix);
let mut new_lines = vec!();
new_lines.push_all(lines_prefix);
new_lines.push_all(&insert_lines);
new_lines.push_all(lines_suffix);
new_lines
};
let mut new_line = prefix.to_owned();
new_line.push_str(&insert_lines[0]);
insert_lines[0] = new_line;
let last_insert_lines_index = insert_lines.len() - 1;
self.edit_point.index = insert_lines[last_insert_lines_index].chars().count();
self.edit_point.line = begin.line + last_insert_lines_index;
insert_lines[last_insert_lines_index].push_str(suffix);
let mut new_lines = vec!();
new_lines.push_all(lines_prefix);
new_lines.push_all(&insert_lines);
new_lines.push_all(lines_suffix);
new_lines
};
self.lines = new_lines;
self.lines = new_lines;
}
}
/// Return the length of the current line under the editing point.
@ -237,8 +257,7 @@ impl<T: ClipboardProvider> TextInput<T> {
self.selection_begin = Some(self.edit_point);
}
} else {
if self.selection_begin.is_some() {
let (begin, end) = self.get_sorted_selection();
if let Some((begin, end)) = self.get_sorted_selection() {
self.edit_point = if adjust < 0 {begin} else {end};
self.clear_selection();
return
@ -304,11 +323,18 @@ impl<T: ClipboardProvider> TextInput<T> {
pub fn handle_keydown_aux(&mut self, key: Key, mods: KeyModifiers) -> KeyReaction {
let maybe_select = if mods.contains(SHIFT) { Selection::Selected } else { Selection::NotSelected };
match key {
Key::A if is_control_key(mods) => {
Key::A if is_control_key(mods) => {
self.select_all();
KeyReaction::Nothing
},
Key::V if is_control_key(mods) => {
Key::C if is_control_key(mods) => {
if let Some(text) = self.get_selection_text() {
println!("get_selection_text(): {}", &text);
self.clipboard_provider.set_clipboard_contents(text);
}
KeyReaction::DispatchInput
},
Key::V if is_control_key(mods) => {
let contents = self.clipboard_provider.clipboard_contents();
self.insert_string(contents);
KeyReaction::DispatchInput