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visibility: Centralize keyboard panel visibility policy and handling

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With the policy being disentangled from application, it becomes testable.
This prepares for moving the entire visibility mechanism to the new class and taking away more pieces of ServerContextService.
In addition, this is a good warmup before trying to implement sizing policy.
This commit is contained in:
Dorota Czaplejewicz
2020-11-19 09:48:23 +00:00
parent ebbb3b1138
commit 17db3db296
9 changed files with 223 additions and 87 deletions
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37
src/imservice.rs
View File

@ -6,7 +6,6 @@
use std::boxed::Box;
use std::ffi::CString;
use std::fmt;
use std::mem;
use std::num::Wrapping;
use std::string::String;
@ -24,7 +23,7 @@ pub mod c {
use std::os::raw::{c_char, c_void};
pub use ::submission::c::UIManager;
pub use ::ui_manager::c::UIManager;
pub use ::submission::c::StateManager;
// The following defined in C
@ -42,8 +41,6 @@ pub mod c {
pub fn eek_input_method_delete_surrounding_text(im: *mut InputMethod, before: u32, after: u32);
pub fn eek_input_method_commit(im: *mut InputMethod, serial: u32);
fn eekboard_context_service_set_hint_purpose(state: *const StateManager, hint: u32, purpose: u32);
pub fn server_context_service_set_im_active(imservice: *const UIManager, active: u32);
pub fn server_context_service_keyboard_release_visibility(imservice: *const UIManager);
}
// The following defined in Rust. TODO: wrap naked pointers to Rust data inside RefCells to prevent multiple writers
@ -153,7 +150,7 @@ pub mod c {
};
if active_changed {
imservice.apply_active_to_ui();
(imservice.active_callback)(imservice.current.active);
if imservice.current.active {
unsafe {
eekboard_context_service_set_hint_purpose(
@ -179,9 +176,7 @@ pub mod c {
// the keyboard is already decommissioned
imservice.current.active = false;
if let Some(ui) = imservice.ui_manager {
unsafe { server_context_service_keyboard_release_visibility(ui); }
}
(imservice.active_callback)(imservice.current.active);
}
// FIXME: destroy and deallocate
@ -334,8 +329,7 @@ pub struct IMService {
pub im: *mut c::InputMethod,
/// Unowned reference. Be careful, it's shared with C at large
state_manager: *const c::StateManager,
/// Unowned reference. Be careful, it's shared with C at large
ui_manager: Option<*const c::UIManager>,
active_callback: Box<dyn Fn(bool)>,
pending: IMProtocolState,
current: IMProtocolState, // turn current into an idiomatic representation?
@ -352,12 +346,13 @@ impl IMService {
pub fn new(
im: *mut c::InputMethod,
state_manager: *const c::StateManager,
active_callback: Box<dyn Fn(bool)>,
) -> Box<IMService> {
// IMService will be referenced to by C,
// so it needs to stay in the same place in memory via Box
let imservice = Box::new(IMService {
im,
ui_manager: None,
active_callback,
state_manager,
pending: IMProtocolState::default(),
current: IMProtocolState::default(),
@ -373,26 +368,6 @@ impl IMService {
imservice
}
pub fn set_ui_manager(&mut self, mut ui_manager: Option<*const c::UIManager>) {
mem::swap(&mut self.ui_manager, &mut ui_manager);
// Now ui_manager is what was previously self.ui_manager.
// If there wasn't any, we need to consider if UI was requested.
if let None = ui_manager {
self.apply_active_to_ui();
}
}
fn apply_active_to_ui(&self) {
if let Some(ui) = self.ui_manager {
unsafe {
c::server_context_service_set_im_active(
ui,
self.is_active() as u32,
);
}
}
}
pub fn commit_string(&self, text: &CString) -> Result<(), SubmitError> {
match self.current.active {
true => {