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Implement CharacterData.{deleteData, insertData, replaceData}

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This commit is contained in:
lpy 2014-04-20 21:45:53 +08:00
parent bb8a037cb2
commit fd9541357f
3 changed files with 34 additions and 1 deletions
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28
src/components/script/dom/characterdata.rs
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@ -6,7 +6,7 @@
use dom::bindings::codegen::InheritTypes::CharacterDataDerived;
use dom::bindings::js::JS;
use dom::bindings::error::{Fallible, ErrorResult};
use dom::bindings::error::{Fallible, ErrorResult, IndexSize};
use dom::bindings::utils::{Reflectable, Reflector};
use dom::document::Document;
use dom::eventtarget::{EventTarget, NodeTargetTypeId};
@ -59,6 +59,32 @@ impl CharacterData {
self.data.push_str(arg);
Ok(())
}
pub fn InsertData(&mut self, offset: u32, arg: DOMString) -> ErrorResult {
self.ReplaceData(offset, 0, arg)
}
pub fn DeleteData(&mut self, offset: u32, count: u32) -> ErrorResult {
self.ReplaceData(offset, count, ~"")
}
pub fn ReplaceData(&mut self, offset: u32, count: u32, arg: DOMString) -> ErrorResult {
let length = self.data.len() as u32;
if offset > length {
return Err(IndexSize);
}
let count = if offset + count > length {
length - offset
} else {
count
};
let mut data = self.data.slice(0, offset as uint).to_owned();
data.push_str(arg);
data.push_str(self.data.slice((offset + count) as uint, length as uint));
self.data = data;
// FIXME: Once we have `Range`, we should implement step7 to step11
Ok(())
}
}
impl Reflectable for CharacterData {