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Highlight selected text in input fields

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Fixes #9993.  This does not yet allow stylesheets to set the selection colors;
instead it uses a hard-coded orange background and white foreground.
This commit is contained in:
Matt Brubeck 2016-03-18 16:38:17 -07:00
parent f2f05869d6
commit 6171000875
17 changed files with 229 additions and 62 deletions
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38
components/script/dom/htmlinputelement.rs
View file

@ -31,6 +31,7 @@ use dom::nodelist::NodeList;
use dom::validation::Validatable;
use dom::virtualmethods::VirtualMethods;
use msg::constellation_msg::ConstellationChan;
use range::Range;
use script_thread::ScriptThreadEventCategory::InputEvent;
use script_thread::{CommonScriptMsg, Runnable};
use script_traits::ScriptMsg as ConstellationMsg;
@ -209,7 +210,7 @@ pub trait LayoutHTMLInputElementHelpers {
#[allow(unsafe_code)]
unsafe fn get_size_for_layout(self) -> u32;
#[allow(unsafe_code)]
unsafe fn get_insertion_point_index_for_layout(self) -> Option<isize>;
unsafe fn get_selection_for_layout(self) -> Option<Range<isize>>;
#[allow(unsafe_code)]
unsafe fn get_checked_state_for_layout(self) -> bool;
#[allow(unsafe_code)]
@ -242,7 +243,7 @@ impl LayoutHTMLInputElementHelpers for LayoutJS<HTMLInputElement> {
InputType::InputPassword => {
let text = get_raw_textinput_value(self);
if !text.is_empty() {
// The implementation of get_insertion_point_index_for_layout expects a 1:1 mapping of chars.
// The implementation of get_selection_for_layout expects a 1:1 mapping of chars.
text.chars().map(|_| '●').collect()
} else {
String::from((*self.unsafe_get()).placeholder.borrow_for_layout().clone())
@ -251,7 +252,7 @@ impl LayoutHTMLInputElementHelpers for LayoutJS<HTMLInputElement> {
_ => {
let text = get_raw_textinput_value(self);
if !text.is_empty() {
// The implementation of get_insertion_point_index_for_layout expects a 1:1 mapping of chars.
// The implementation of get_selection_for_layout expects a 1:1 mapping of chars.
String::from(text)
} else {
String::from((*self.unsafe_get()).placeholder.borrow_for_layout().clone())
@ -268,25 +269,24 @@ impl LayoutHTMLInputElementHelpers for LayoutJS<HTMLInputElement> {
#[allow(unrooted_must_root)]
#[allow(unsafe_code)]
unsafe fn get_insertion_point_index_for_layout(self) -> Option<isize> {
unsafe fn get_selection_for_layout(self) -> Option<Range<isize>> {
if !(*self.unsafe_get()).upcast::<Element>().get_focus_state() {
return None;
}
match (*self.unsafe_get()).input_type.get() {
InputType::InputText => {
let raw = self.get_value_for_layout();
Some(search_index((*self.unsafe_get()).textinput.borrow_for_layout().edit_point.index,
raw.char_indices()))
}
InputType::InputPassword => {
// Use the raw textinput to get the index as long as we use a 1:1 char mapping
// in get_input_value_for_layout.
let raw = get_raw_textinput_value(self);
Some(search_index((*self.unsafe_get()).textinput.borrow_for_layout().edit_point.index,
raw.char_indices()))
}
_ => None
}
// Use the raw textinput to get the index as long as we use a 1:1 char mapping
// in get_value_for_layout.
let raw = match (*self.unsafe_get()).input_type.get() {
InputType::InputText |
InputType::InputPassword => get_raw_textinput_value(self),
_ => return None
};
let textinput = (*self.unsafe_get()).textinput.borrow_for_layout();
let selection = textinput.get_absolute_selection_range();
let begin_byte = selection.begin();
let begin = search_index(begin_byte, raw.char_indices());
let length = search_index(selection.length(), raw[begin_byte..].char_indices());
Some(Range::new(begin, length))
}
#[allow(unrooted_must_root)]

7
components/script/dom/htmltextareaelement.rs
View file

@ -26,6 +26,7 @@ use dom::nodelist::NodeList;
use dom::validation::Validatable;
use dom::virtualmethods::VirtualMethods;
use msg::constellation_msg::ConstellationChan;
use range::Range;
use script_traits::ScriptMsg as ConstellationMsg;
use std::cell::Cell;
use string_cache::Atom;
@ -46,7 +47,7 @@ pub trait LayoutHTMLTextAreaElementHelpers {
#[allow(unsafe_code)]
unsafe fn get_value_for_layout(self) -> String;
#[allow(unsafe_code)]
unsafe fn get_absolute_insertion_point_for_layout(self) -> Option<usize>;
unsafe fn get_absolute_selection_for_layout(self) -> Option<Range<usize>>;
#[allow(unsafe_code)]
fn get_cols(self) -> u32;
#[allow(unsafe_code)]
@ -62,10 +63,10 @@ impl LayoutHTMLTextAreaElementHelpers for LayoutJS<HTMLTextAreaElement> {
#[allow(unrooted_must_root)]
#[allow(unsafe_code)]
unsafe fn get_absolute_insertion_point_for_layout(self) -> Option<usize> {
unsafe fn get_absolute_selection_for_layout(self) -> Option<Range<usize>> {
if (*self.unsafe_get()).upcast::<Element>().get_focus_state() {
Some((*self.unsafe_get()).textinput.borrow_for_layout()
.get_absolute_insertion_point())
.get_absolute_selection_range())
} else {
None
}