mirror of
https://github.com/servo/servo.git
synced 2025-08-03 04:30:10 +01:00
Added checks that selection is valid, and fix set_selection_range.
This commit is contained in:
parent
810735a846
commit
7ed8408f12
2 changed files with 44 additions and 4 deletions
|
@ -215,6 +215,16 @@ impl<T: ClipboardProvider> TextInput<T> {
|
|||
})
|
||||
}
|
||||
|
||||
// Check that the selection is valid.
|
||||
fn assert_ok_selection(&self) {
|
||||
if let Some(begin) = self.selection_begin {
|
||||
debug_assert!(begin.line < self.lines.len());
|
||||
debug_assert!(begin.index <= self.lines[begin.line].len());
|
||||
}
|
||||
debug_assert!(self.edit_point.line < self.lines.len());
|
||||
debug_assert!(self.edit_point.index <= self.lines[self.edit_point.line].len());
|
||||
}
|
||||
|
||||
/// Return the selection range as UTF-8 byte offsets from the start of the content.
|
||||
///
|
||||
/// If there is no selection, returns an empty range at the insertion point.
|
||||
|
@ -319,6 +329,7 @@ impl<T: ClipboardProvider> TextInput<T> {
|
|||
|
||||
self.lines = new_lines;
|
||||
}
|
||||
self.assert_ok_selection();
|
||||
}
|
||||
|
||||
/// Return the length in UTF-8 bytes of the current line under the editing point.
|
||||
|
@ -360,6 +371,7 @@ impl<T: ClipboardProvider> TextInput<T> {
|
|||
|
||||
self.edit_point.line = target_line as usize;
|
||||
self.edit_point.index = len_of_first_n_chars(&self.lines[self.edit_point.line], col);
|
||||
self.assert_ok_selection();
|
||||
}
|
||||
|
||||
/// Adjust the editing point position by a given number of bytes. If the adjustment
|
||||
|
@ -441,6 +453,7 @@ impl<T: ClipboardProvider> TextInput<T> {
|
|||
self.edit_point.index + adjust as usize);
|
||||
}
|
||||
}
|
||||
self.assert_ok_selection();
|
||||
}
|
||||
|
||||
/// Deal with a newline input.
|
||||
|
@ -462,6 +475,7 @@ impl<T: ClipboardProvider> TextInput<T> {
|
|||
let last_line = self.lines.len() - 1;
|
||||
self.edit_point.line = last_line;
|
||||
self.edit_point.index = self.lines[last_line].len();
|
||||
self.assert_ok_selection();
|
||||
}
|
||||
|
||||
/// Remove the current selection.
|
||||
|
@ -534,6 +548,7 @@ impl<T: ClipboardProvider> TextInput<T> {
|
|||
}
|
||||
Key::End => {
|
||||
self.edit_point.index = self.current_line_length();
|
||||
self.assert_ok_selection();
|
||||
KeyReaction::RedrawSelection
|
||||
}
|
||||
Key::PageUp => {
|
||||
|
@ -598,6 +613,7 @@ impl<T: ClipboardProvider> TextInput<T> {
|
|||
self.edit_point.line = min(self.edit_point.line, self.lines.len() - 1);
|
||||
self.edit_point.index = min(self.edit_point.index, self.current_line_length());
|
||||
self.selection_begin = None;
|
||||
self.assert_ok_selection();
|
||||
}
|
||||
|
||||
/// Get the insertion point as a byte offset from the start of the content.
|
||||
|
@ -646,16 +662,16 @@ impl<T: ClipboardProvider> TextInput<T> {
|
|||
let mut end = end as usize;
|
||||
let text_end = self.get_content().len();
|
||||
|
||||
if start > text_end {
|
||||
start = text_end;
|
||||
} else if end > text_end {
|
||||
if end > text_end {
|
||||
end = text_end;
|
||||
} else if start >= end {
|
||||
}
|
||||
if start > end {
|
||||
start = end;
|
||||
}
|
||||
|
||||
self.selection_begin = Some(self.get_text_point_for_absolute_point(start));
|
||||
self.edit_point = self.get_text_point_for_absolute_point(end);
|
||||
self.assert_ok_selection();
|
||||
}
|
||||
|
||||
pub fn get_selection_start(&self) -> u32 {
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue