Add support for localized placeholders.

Author: hydra

examples/assets/localizations/en-US/validation-localized.ftl

@@ -8,6 +8,7 @@ language-es-es = Spanish (Spain)
 #
 form-example-hinted-label = Hinted
 form-example-not-hinted-label = Not hinted
+form-example-input-placeholder = Enter some text
 
 # Specific validation reason
 form-input-invalid-non-whitespace-required = This field must have at least one non-whitespace character

examples/assets/localizations/es-ES/validation-localized.ftl

@@ -8,6 +8,7 @@ language-es-es = Español (España)
 #
 form-example-hinted-label = Insinuado
 form-example-not-hinted-label = No insinuado
+form-example-input-placeholder = Introduzca un texto
 
 # Razón de validación específica
 form-input-invalid-non-whitespace-required = Este campo debe tener al menos un carácter que no sea un espacio en blanco

examples/validation-localized.rs

@@ -21,12 +21,14 @@ fn form() -> impl MakeWidget {
     localize!("form-example-hinted-label")
         .and(
             text.to_input()
+                .placeholder(localize!("form-example-input-placeholder"))
                 .validation(validations.validate(&text, validate_input))
                 .hint(localize!("form-hint-field-required")),
         )
         .and(localize!("form-example-not-hinted-label"))
         .and(
             text.to_input()
+                .placeholder(localize!("form-example-input-placeholder"))
                 .validation(validations.validate(&text, validate_input)),
         )
         .and(

examples/validation.rs

@@ -14,12 +14,14 @@ fn main() -> cushy::Result {
     "Hinted"
         .and(
             text.to_input()
+                .placeholder("Enter some text")
                 .validation(validations.validate(&text, validate_input))
                 .hint("* required"),
         )
         .and("Not Hinted")
         .and(
             text.to_input()
+                .placeholder("Enter some text")
                 .validation(validations.validate(&text, validate_input)),
         )
         .and(

src/widgets/input.rs

@@ -28,7 +28,7 @@ use crate::utils::ModifiersExt;
 use crate::value::{Destination, Dynamic, Generation, IntoDynamic, IntoValue, Source, Value};
 use crate::widget::{Callback, EventHandling, Widget, HANDLED, IGNORED};
 use crate::window::KeyEvent;
-use crate::{ConstraintLimit, FitMeasuredSize, Lazy};
+use crate::{ConstraintLimit, FitMeasuredSize, Lazy, MaybeLocalized};
 
 const CURSOR_BLINK_DURATION: Duration = Duration::from_millis(500);
 
@@ -38,7 +38,7 @@ pub struct Input<Storage = String> {
     /// The value of this widget.
     pub value: Dynamic<Storage>,
     /// The placeholder text to display when no value is present.
-    pub placeholder: Value<String>,
+    pub placeholder: Value<MaybeLocalized>,
     mask_symbol: Value<CowString>,
     mask: CowString,
     on_key: Option<Callback<KeyEvent, EventHandling>>,
@@ -127,7 +127,7 @@ where
 
     /// Sets the `placeholder` text, which is displayed when the field has an
     /// empty value.
-    pub fn placeholder(mut self, placeholder: impl IntoValue<String>) -> Self {
+    pub fn placeholder(mut self, placeholder: impl IntoValue<MaybeLocalized>) -> Self {
         self.placeholder = placeholder.into_value();
         self
     }
@@ -605,7 +605,11 @@ where
                     }
 
                     let placeholder_color = context.theme().surface.on_color_variant;
-                    let placeholder = self.placeholder.map(|placeholder| context.gfx.measure_text(Text::new(placeholder, placeholder_color)));
+                    let placeholder = self.placeholder.map(|placeholder| {
+                        let text = placeholder.localize(context).to_string();
+
+                        context.gfx.measure_text(Text::new(&text, placeholder_color))
+                    });
                     (bytes, context.gfx.measure_text(text), placeholder)
                 });
                 self.cache = Some(CachedLayout {