724b40e5a8
- Adds a Todo list example. - Updates ListView to support ending the row actions visible state. - Support setting Label text color.
76 lines
2.7 KiB
Rust
76 lines
2.7 KiB
Rust
use std::collections::HashMap;
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use cacao::defaults::{UserDefaults, Value};
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const EXAMPLE: &'static str = "exampleSetting";
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/// A very basic wrapper around UserDefaults. If I wind up implementing Serde support for
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/// UserDefaults, then much of this could be removed or simplified - but I'm not sold on that yet,
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/// so this exists for now.
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#[derive(Debug)]
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pub struct Defaults;
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impl Defaults {
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/// Registers the default settings for our application. Note that just because this is run at
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/// application start does _not_ mean it's always the defaults; this is effectively "on first
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/// run, set these defaults". Updates will persist and overwrite these accordingly.
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pub fn register() {
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let mut defaults = UserDefaults::standard();
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defaults.register({
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let mut map = HashMap::new();
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map.insert(EXAMPLE, Value::Bool(true));
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map
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});
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}
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/// Toggles the example setting.
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pub fn toggle_should_whatever() {
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toggle_bool(EXAMPLE);
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}
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/// Returns whether the example setting is currently true or false.
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pub fn should_whatever() -> bool {
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load_bool(EXAMPLE)
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}
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}
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/// A helper method for toggling a boolean value held at the specified key. If the value cannot
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/// be pulled as a bool, then this panics.
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///
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/// Note that choosing to panic here is a personal design decision; this is core functionality that
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/// should work, and I'd rather it crash with a meaningful message rather than `unwrap()` issues.
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fn toggle_bool(key: &str) {
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let mut defaults = UserDefaults::standard();
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if let Some(value) = defaults.get(key) {
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if let Some(value) = value.as_bool() {
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defaults.insert(key, Value::Bool(!value));
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return;
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}
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panic!("Attempting to toggle a boolean value for {}, but it's not a boolean.", key);
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}
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panic!("Attempting to toggle a boolean value for {}, but this key does not exist.", key);
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}
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/// A helper method for loading a boolean value held at the specified key. If the value cannot
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/// be pulled as a bool, then this panics.
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///
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/// Note that choosing to panic here is a personal design decision; this is core functionality that
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/// should work, and I'd rather it crash with a meaningful message rather than `unwrap()` issues.
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fn load_bool(key: &str) -> bool {
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let defaults = UserDefaults::standard();
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if let Some(value) = defaults.get(key) {
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if let Some(value) = value.as_bool() {
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return value;
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}
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panic!("Attempting to load a boolean value for {}, but it's not a boolean.", key);
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}
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panic!("Attempting to load a boolean value for {}, but this key does not exist.", key);
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}
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