mirror of
https://github.com/wez/wezterm.git
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Add basic support for IME on macOS
Similar to the windows IME support, the placement needs refinement, but this is sufficient for pinyin input and insertion of emoji via the emoji palette.
This commit is contained in:
Wez Furlong
parent
81ec2a8a26
commit
61f4a8d32a
@ -16,18 +16,57 @@ use cocoa::appkit::{
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NSWindowStyleMask,
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};
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use cocoa::base::*;
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use cocoa::foundation::{NSPoint, NSRect, NSSize};
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use cocoa::foundation::{NSArray, NSNotFound, NSPoint, NSRect, NSSize, NSUInteger};
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use core_graphics::image::CGImageRef;
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use failure::Fallible;
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use objc::declare::ClassDecl;
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use objc::rc::{StrongPtr, WeakPtr};
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use objc::runtime::{Class, Object, Sel};
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use objc::runtime::{Class, Object, Protocol, Sel};
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use objc::*;
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use std::any::Any;
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use std::cell::RefCell;
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use std::ffi::c_void;
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use std::rc::Rc;
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#[repr(C)]
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struct NSRange(cocoa::foundation::NSRange);
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#[derive(Debug)]
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#[repr(C)]
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struct NSRangePointer(*mut NSRange);
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impl std::fmt::Debug for NSRange {
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fn fmt(&self, fmt: &mut std::fmt::Formatter) -> std::result::Result<(), std::fmt::Error> {
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fmt.debug_struct("NSRange")
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.field("location", &self.0.location)
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.field("length", &self.0.length)
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.finish()
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}
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}
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unsafe impl objc::Encode for NSRange {
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fn encode() -> objc::Encoding {
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let encoding = format!(
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"{{NSRange={}{}}}",
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NSUInteger::encode().as_str(),
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NSUInteger::encode().as_str()
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);
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unsafe { objc::Encoding::from_str(&encoding) }
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}
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}
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unsafe impl objc::Encode for NSRangePointer {
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fn encode() -> objc::Encoding {
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unsafe { objc::Encoding::from_str(&format!("^{}", NSRange::encode().as_str())) }
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}
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}
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impl NSRange {
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fn new(location: u64, length: u64) -> Self {
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Self(cocoa::foundation::NSRange { location, length })
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}
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}
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#[cfg(feature = "opengl")]
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mod opengl {
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use super::*;
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@ -532,6 +571,140 @@ impl WindowView {
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}
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}
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// Called by the inputContext manager when the IME processes events.
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// We need to translate the selector back into appropriate key
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// sequences
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extern "C" fn do_command_by_selector(this: &mut Object, _sel: Sel, a_selector: Sel) {
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let selector = format!("{:?}", a_selector);
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eprintln!("do_command_by_selector: {:?}", selector);
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let key = match selector.as_ref() {
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"deleteBackward:" => KeyCode::Char('\x08'),
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"insertNewline:" => KeyCode::Char('\n'),
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"moveLeft:" => KeyCode::LeftArrow,
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"moveRight:" => KeyCode::RightArrow,
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"moveUp:" => KeyCode::UpArrow,
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"moveDown:" => KeyCode::DownArrow,
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"scrollToBeginningOfDocument:" => KeyCode::Home,
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"scrollToEndOfDocument:" => KeyCode::End,
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"scrollPageUp:" => KeyCode::PageUp,
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"scrollPageDown:" => KeyCode::PageDown,
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_ => return,
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};
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let event = KeyEvent {
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key,
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modifiers: Modifiers::default(),
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repeat_count: 1,
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key_is_down: true,
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};
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if let Some(myself) = Self::get_this(this) {
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let mut inner = myself.inner.borrow_mut();
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let window = Window(inner.window_id);
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inner.callbacks.key_event(&event, &window);
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}
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}
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extern "C" fn has_marked_text(_this: &mut Object, _sel: Sel) -> BOOL {
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NO
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}
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extern "C" fn marked_range(_this: &mut Object, _sel: Sel) -> NSRange {
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NSRange::new(NSNotFound as _, 0)
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}
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extern "C" fn selected_range(_this: &mut Object, _sel: Sel) -> NSRange {
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NSRange::new(NSNotFound as _, 0)
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}
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// Called by the IME when inserting composed text and/or emoji
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extern "C" fn insert_text_replacement_range(
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this: &mut Object,
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_sel: Sel,
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astring: id,
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_replacement_range: NSRange,
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) {
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let s = unsafe { nsstring_to_str(astring) };
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let event = KeyEvent {
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key: KeyCode::Composed(s.to_string()),
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modifiers: Modifiers::default(),
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repeat_count: 1,
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key_is_down: true,
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};
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if let Some(myself) = Self::get_this(this) {
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let mut inner = myself.inner.borrow_mut();
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let window = Window(inner.window_id);
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inner.callbacks.key_event(&event, &window);
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}
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}
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extern "C" fn set_marked_text_selected_range_replacement_range(
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_this: &mut Object,
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_sel: Sel,
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_astring: id,
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selected_range: NSRange,
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replacement_range: NSRange,
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) {
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let s = unsafe { nsstring_to_str(_astring) };
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eprintln!(
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"set_marked_text_selected_range_replacement_range {} {:?} {:?}",
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s, selected_range, replacement_range
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);
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}
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extern "C" fn unmark_text(_this: &mut Object, _sel: Sel) {
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eprintln!("unmarkText");
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}
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extern "C" fn valid_attributes_for_marked_text(_this: &mut Object, _sel: Sel) -> id {
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// FIXME: returns NSArray<NSAttributedStringKey> *
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// eprintln!("valid_attributes_for_marked_text");
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// nil
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unsafe { NSArray::arrayWithObjects(nil, &[]) }
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}
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extern "C" fn attributed_substring_for_proposed_range(
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_this: &mut Object,
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_sel: Sel,
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_proposed_range: NSRange,
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_actual_range: NSRangePointer,
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) -> id {
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eprintln!(
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"attributedSubstringForProposedRange {:?} {:?}",
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_proposed_range, _actual_range
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);
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nil
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}
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extern "C" fn character_index_for_point(
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_this: &mut Object,
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_sel: Sel,
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_point: NSPoint,
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) -> NSUInteger {
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NSNotFound as _
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}
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extern "C" fn first_rect_for_character_range(
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this: &mut Object,
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_sel: Sel,
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range: NSRange,
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actual: NSRangePointer,
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) -> NSRect {
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// Returns a rect in screen coordinates; this is used to place
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// the input method editor
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eprintln!(
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"firstRectForCharacterRange: range:{:?} actual:{:?}",
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range, actual
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);
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unsafe {
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let window: id = msg_send![this, window];
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let frame = NSWindow::frame(window);
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frame
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}
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}
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extern "C" fn accepts_first_responder(_this: &mut Object, _sel: Sel) -> BOOL {
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YES
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}
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@ -627,9 +800,23 @@ impl WindowView {
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fn key_common(this: &mut Object, nsevent: id, key_is_down: bool) {
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let chars = unsafe { nsstring_to_str(nsevent.characters()) };
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// let unmod = unsafe {nsstring_to_str(nsevent.charactersIgnoringModifiers())};
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let unmod = unsafe { nsstring_to_str(nsevent.charactersIgnoringModifiers()) };
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let modifiers = unsafe { key_modifiers(nsevent.modifierFlags()) };
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eprintln!(
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"key_common ENTER (down={} chars={:?} unmod={:?} modifiers={:?}",
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key_is_down, chars, unmod, modifiers
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);
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if modifiers.is_empty() && key_is_down {
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unsafe {
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let input_context: id = msg_send![this, inputContext];
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let res: BOOL = msg_send![input_context, handleEvent: nsevent];
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if res == YES {
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return;
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}
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}
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}
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let mut char_iter = chars.chars();
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if let Some(first_char) = char_iter.next() {
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let key = if char_iter.next().is_none() {
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@ -796,6 +983,9 @@ impl WindowView {
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ClassDecl::new(CLS_NAME, class!(NSView)).expect("Unable to register WindowView class");
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cls.add_ivar::<*mut c_void>(CLS_NAME);
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cls.add_protocol(
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Protocol::get("NSTextInputClient").expect("failed to get NSTextInputClient protocol"),
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);
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unsafe {
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cls.add_method(
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@ -874,6 +1064,59 @@ impl WindowView {
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sel!(acceptsFirstResponder),
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Self::accepts_first_responder as extern "C" fn(&mut Object, Sel) -> BOOL,
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);
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// NSTextInputClient
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cls.add_method(
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sel!(hasMarkedText),
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Self::has_marked_text as extern "C" fn(&mut Object, Sel) -> BOOL,
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);
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cls.add_method(
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sel!(markedRange),
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Self::marked_range as extern "C" fn(&mut Object, Sel) -> NSRange,
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);
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cls.add_method(
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sel!(selectedRange),
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Self::selected_range as extern "C" fn(&mut Object, Sel) -> NSRange,
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);
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cls.add_method(
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sel!(setMarkedText:selectedRange:replacementRange:),
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Self::set_marked_text_selected_range_replacement_range
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as extern "C" fn(&mut Object, Sel, id, NSRange, NSRange),
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);
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cls.add_method(
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sel!(unmarkText),
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Self::unmark_text as extern "C" fn(&mut Object, Sel),
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);
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cls.add_method(
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sel!(validAttributesForMarkedText),
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Self::valid_attributes_for_marked_text as extern "C" fn(&mut Object, Sel) -> id,
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);
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cls.add_method(
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sel!(doCommandBySelector:),
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Self::do_command_by_selector as extern "C" fn(&mut Object, Sel, Sel),
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);
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cls.add_method(
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sel!( attributedSubstringForProposedRange:actualRange:),
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Self::attributed_substring_for_proposed_range
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as extern "C" fn(&mut Object, Sel, NSRange, NSRangePointer) -> id,
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);
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cls.add_method(
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sel!(insertText:replacementRange:),
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Self::insert_text_replacement_range as extern "C" fn(&mut Object, Sel, id, NSRange),
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);
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cls.add_method(
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sel!(characterIndexForPoint:),
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Self::character_index_for_point
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as extern "C" fn(&mut Object, Sel, NSPoint) -> NSUInteger,
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);
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cls.add_method(
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sel!(firstRectForCharacterRange:actualRange:),
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Self::first_rect_for_character_range
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as extern "C" fn(&mut Object, Sel, NSRange, NSRangePointer) -> NSRect,
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);
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}
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cls.register()
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