From b5b65b8eea12667b4643e91d5850d352801020c3 Mon Sep 17 00:00:00 2001 From: Maccesch Date: Sat, 15 Jul 2023 00:55:02 +0100 Subject: [PATCH] added use_drop_zone. fixes #13 --- .idea/leptos-use.iml | 1 + CHANGELOG.md | 1 + Cargo.toml | 4 + docs/book/src/SUMMARY.md | 1 + docs/book/src/elements/use_drop_zone.md | 3 + examples/Cargo.toml | 3 +- examples/use_drop_zone/Cargo.toml | 16 + examples/use_drop_zone/README.md | 23 ++ examples/use_drop_zone/Trunk.toml | 2 + .../use_drop_zone/img/leptos-use-logo.svg | 27 ++ examples/use_drop_zone/index.html | 8 + examples/use_drop_zone/input.css | 3 + examples/use_drop_zone/rust-toolchain.toml | 2 + examples/use_drop_zone/src/main.rs | 63 ++++ examples/use_drop_zone/style/output.css | 333 ++++++++++++++++++ examples/use_drop_zone/tailwind.config.js | 15 + src/lib.rs | 2 + src/use_drop_zone.rs | 179 ++++++++++ 18 files changed, 685 insertions(+), 1 deletion(-) create mode 100644 docs/book/src/elements/use_drop_zone.md create mode 100644 examples/use_drop_zone/Cargo.toml create mode 100644 examples/use_drop_zone/README.md create mode 100644 examples/use_drop_zone/Trunk.toml create mode 100644 examples/use_drop_zone/img/leptos-use-logo.svg create mode 100644 examples/use_drop_zone/index.html create mode 100644 examples/use_drop_zone/input.css create mode 100644 examples/use_drop_zone/rust-toolchain.toml create mode 100644 examples/use_drop_zone/src/main.rs create mode 100644 examples/use_drop_zone/style/output.css create mode 100644 examples/use_drop_zone/tailwind.config.js create mode 100644 src/use_drop_zone.rs diff --git a/.idea/leptos-use.iml b/.idea/leptos-use.iml index 1384afa..9a57ee7 100644 --- a/.idea/leptos-use.iml +++ b/.idea/leptos-use.iml @@ -47,6 +47,7 @@ + diff --git a/CHANGELOG.md b/CHANGELOG.md index e2feaa7..0ab622d 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 ### New Functions 🚀 +- `use_drop_zone` - `use_websocket` (thanks @sectore) - `use_intl_number_format` diff --git a/Cargo.toml b/Cargo.toml index f59bbf6..c977c43 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -33,7 +33,11 @@ features = [ "CustomEvent", "CustomEventInit", "DomRectReadOnly", + "DataTransfer", + "DragEvent", "Element", + "File", + "FileList", "HtmlElement", "HtmlLinkElement", "HtmlStyleElement", diff --git a/docs/book/src/SUMMARY.md b/docs/book/src/SUMMARY.md index 8900608..4df8b86 100644 --- a/docs/book/src/SUMMARY.md +++ b/docs/book/src/SUMMARY.md @@ -16,6 +16,7 @@ - [use_active_element](elements/use_active_element.md) - [use_document_visibility](elements/use_document_visibility.md) +- [use_drop_zone](elements/use_drop_zone.md) - [use_element_size](elements/use_element_size.md) - [use_element_visibility](elements/use_element_visibility.md) - [use_intersection_observer](elements/use_intersection_observer.md) diff --git a/docs/book/src/elements/use_drop_zone.md b/docs/book/src/elements/use_drop_zone.md new file mode 100644 index 0000000..c2b037b --- /dev/null +++ b/docs/book/src/elements/use_drop_zone.md @@ -0,0 +1,3 @@ +# use_drop_zone + + diff --git a/examples/Cargo.toml b/examples/Cargo.toml index eabb6fd..54aff8f 100644 --- a/examples/Cargo.toml +++ b/examples/Cargo.toml @@ -12,16 +12,17 @@ members = [ "use_cycle_list", "use_debounce_fn", "use_document_visibility", + "use_drop_zone", "use_element_hover", "use_element_size", "use_element_visibility", "use_event_listener", - "use_intl_number_format", "use_favicon", "use_floor", "use_intersection_observer", "use_interval", "use_interval_fn", + "use_intl_number_format", "use_media_query", "use_mouse", "use_mutation_observer", diff --git a/examples/use_drop_zone/Cargo.toml b/examples/use_drop_zone/Cargo.toml new file mode 100644 index 0000000..59b996f --- /dev/null +++ b/examples/use_drop_zone/Cargo.toml @@ -0,0 +1,16 @@ +[package] +name = "use_drop_zone" +version = "0.1.0" +edition = "2021" + +[dependencies] +leptos = { version = "0.4", features = ["nightly", "csr"] } +console_error_panic_hook = "0.1" +console_log = "1" +log = "0.4" +leptos-use = { path = "../..", features = ["docs"] } +web-sys = "0.3" + +[dev-dependencies] +wasm-bindgen = "0.2" +wasm-bindgen-test = "0.3.0" diff --git a/examples/use_drop_zone/README.md b/examples/use_drop_zone/README.md new file mode 100644 index 0000000..fcde6a8 --- /dev/null +++ b/examples/use_drop_zone/README.md @@ -0,0 +1,23 @@ +A simple example for `use_drop_zone`. + +If you don't have it installed already, install [Trunk](https://trunkrs.dev/) and [Tailwind](https://tailwindcss.com/docs/installation) +as well as the nightly toolchain for Rust and the wasm32-unknown-unknown target: + +```bash +cargo install trunk +npm install -D tailwindcss @tailwindcss/forms +rustup toolchain install nightly +rustup target add wasm32-unknown-unknown +``` + +Then, open two terminals. In the first one, run: + +``` +npx tailwindcss -i ./input.css -o ./style/output.css --watch +``` + +In the second one, run: + +```bash +trunk serve --open +``` \ No newline at end of file diff --git a/examples/use_drop_zone/Trunk.toml b/examples/use_drop_zone/Trunk.toml new file mode 100644 index 0000000..3e4be08 --- /dev/null +++ b/examples/use_drop_zone/Trunk.toml @@ -0,0 +1,2 @@ +[build] +public_url = "/demo/" \ No newline at end of file diff --git a/examples/use_drop_zone/img/leptos-use-logo.svg b/examples/use_drop_zone/img/leptos-use-logo.svg new file mode 100644 index 0000000..09f8e86 --- /dev/null +++ b/examples/use_drop_zone/img/leptos-use-logo.svg @@ -0,0 +1,27 @@ + + + + + + + + + \ No newline at end of file diff --git a/examples/use_drop_zone/index.html b/examples/use_drop_zone/index.html new file mode 100644 index 0000000..5b7a5e0 --- /dev/null +++ b/examples/use_drop_zone/index.html @@ -0,0 +1,8 @@ + + + + + + + + diff --git a/examples/use_drop_zone/input.css b/examples/use_drop_zone/input.css new file mode 100644 index 0000000..bd6213e --- /dev/null +++ b/examples/use_drop_zone/input.css @@ -0,0 +1,3 @@ +@tailwind base; +@tailwind components; +@tailwind utilities; \ No newline at end of file diff --git a/examples/use_drop_zone/rust-toolchain.toml b/examples/use_drop_zone/rust-toolchain.toml new file mode 100644 index 0000000..271800c --- /dev/null +++ b/examples/use_drop_zone/rust-toolchain.toml @@ -0,0 +1,2 @@ +[toolchain] +channel = "nightly" \ No newline at end of file diff --git a/examples/use_drop_zone/src/main.rs b/examples/use_drop_zone/src/main.rs new file mode 100644 index 0000000..8c5eddf --- /dev/null +++ b/examples/use_drop_zone/src/main.rs @@ -0,0 +1,63 @@ +use leptos::html::Div; +use leptos::*; +use leptos_use::docs::{demo_or_body, BooleanDisplay}; +use leptos_use::{use_drop_zone_with_options, UseDropZoneOptions, UseDropZoneReturn}; + +#[component] +fn Demo(cx: Scope) -> impl IntoView { + let (dropped, set_dropped) = create_signal(cx, false); + + let drop_zone_el = create_node_ref::
(cx); + + let UseDropZoneReturn { + is_over_drop_zone, + files, + } = use_drop_zone_with_options( + cx, + drop_zone_el, + UseDropZoneOptions::default() + .on_drop(move |_| set_dropped(true)) + .on_enter(move |_| set_dropped(false)), + ); + + view! { cx, +
+
+

Drop files into dropZone

+ Drop me +
+
+ is_over_drop_zone: +
+
+ dropped: +
+
+ +

Name: {file.name()}

+

Size: {file.size()}

+

Type: {file.type_()}

+

Last modified: {file.last_modified()}

+
+ } + } /> +
+
+
+
+ } +} + +fn main() { + _ = console_log::init_with_level(log::Level::Debug); + console_error_panic_hook::set_once(); + + mount_to(demo_or_body(), |cx| { + view! { cx, } + }) +} diff --git a/examples/use_drop_zone/style/output.css b/examples/use_drop_zone/style/output.css new file mode 100644 index 0000000..45bda3d --- /dev/null +++ b/examples/use_drop_zone/style/output.css @@ -0,0 +1,333 @@ +[type='text'],input:where(:not([type])),[type='email'],[type='url'],[type='password'],[type='number'],[type='date'],[type='datetime-local'],[type='month'],[type='search'],[type='tel'],[type='time'],[type='week'],[multiple],textarea,select { + -webkit-appearance: none; + -moz-appearance: none; + appearance: none; + background-color: #fff; + border-color: #6b7280; + border-width: 1px; + border-radius: 0px; + padding-top: 0.5rem; + padding-right: 0.75rem; + padding-bottom: 0.5rem; + padding-left: 0.75rem; + font-size: 1rem; + line-height: 1.5rem; + --tw-shadow: 0 0 #0000; +} + +[type='text']:focus, input:where(:not([type])):focus, [type='email']:focus, [type='url']:focus, [type='password']:focus, [type='number']:focus, [type='date']:focus, [type='datetime-local']:focus, [type='month']:focus, [type='search']:focus, [type='tel']:focus, [type='time']:focus, [type='week']:focus, [multiple]:focus, textarea:focus, select:focus { + outline: 2px solid transparent; + outline-offset: 2px; + --tw-ring-inset: var(--tw-empty,/*!*/ /*!*/); + --tw-ring-offset-width: 0px; + --tw-ring-offset-color: #fff; + --tw-ring-color: #2563eb; + --tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color); + --tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(1px + var(--tw-ring-offset-width)) var(--tw-ring-color); + box-shadow: var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow); + border-color: #2563eb; +} + +input::-moz-placeholder, textarea::-moz-placeholder { + color: #6b7280; + opacity: 1; +} + +input::placeholder,textarea::placeholder { + color: #6b7280; + opacity: 1; +} + +::-webkit-datetime-edit-fields-wrapper { + padding: 0; +} + +::-webkit-date-and-time-value { + min-height: 1.5em; +} + +::-webkit-datetime-edit,::-webkit-datetime-edit-year-field,::-webkit-datetime-edit-month-field,::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute-field,::-webkit-datetime-edit-second-field,::-webkit-datetime-edit-millisecond-field,::-webkit-datetime-edit-meridiem-field { + padding-top: 0; + padding-bottom: 0; +} + +select { + background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e"); + background-position: right 0.5rem center; + background-repeat: no-repeat; + background-size: 1.5em 1.5em; + padding-right: 2.5rem; + -webkit-print-color-adjust: exact; + print-color-adjust: exact; +} + +[multiple],[size]:where(select:not([size="1"])) { + background-image: initial; + background-position: initial; + background-repeat: unset; + background-size: initial; + padding-right: 0.75rem; + -webkit-print-color-adjust: unset; + print-color-adjust: unset; +} + +[type='checkbox'],[type='radio'] { + -webkit-appearance: none; + -moz-appearance: none; + appearance: none; + padding: 0; + -webkit-print-color-adjust: exact; + print-color-adjust: exact; + display: inline-block; + vertical-align: middle; + background-origin: border-box; + -webkit-user-select: none; + -moz-user-select: none; + user-select: none; + flex-shrink: 0; + height: 1rem; + width: 1rem; + color: #2563eb; + background-color: #fff; + border-color: #6b7280; + border-width: 1px; + --tw-shadow: 0 0 #0000; +} + +[type='checkbox'] { + border-radius: 0px; +} + +[type='radio'] { + border-radius: 100%; +} + +[type='checkbox']:focus,[type='radio']:focus { + outline: 2px solid transparent; + outline-offset: 2px; + --tw-ring-inset: var(--tw-empty,/*!*/ /*!*/); + --tw-ring-offset-width: 2px; + --tw-ring-offset-color: #fff; + --tw-ring-color: #2563eb; + --tw-ring-offset-shadow: var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color); + --tw-ring-shadow: var(--tw-ring-inset) 0 0 0 calc(2px + var(--tw-ring-offset-width)) var(--tw-ring-color); + box-shadow: var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow); +} + +[type='checkbox']:checked,[type='radio']:checked { + border-color: transparent; + background-color: currentColor; + background-size: 100% 100%; + background-position: center; + background-repeat: no-repeat; +} + +[type='checkbox']:checked { + background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='M12.207 4.793a1 1 0 010 1.414l-5 5a1 1 0 01-1.414 0l-2-2a1 1 0 011.414-1.414L6.5 9.086l4.293-4.293a1 1 0 011.414 0z'/%3e%3c/svg%3e"); +} + +[type='radio']:checked { + background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3e%3ccircle cx='8' cy='8' r='3'/%3e%3c/svg%3e"); +} + +[type='checkbox']:checked:hover,[type='checkbox']:checked:focus,[type='radio']:checked:hover,[type='radio']:checked:focus { + border-color: transparent; + background-color: currentColor; +} + +[type='checkbox']:indeterminate { + background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 16 16'%3e%3cpath stroke='white' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M4 8h8'/%3e%3c/svg%3e"); + border-color: transparent; + background-color: currentColor; + background-size: 100% 100%; + background-position: center; + background-repeat: no-repeat; +} + +[type='checkbox']:indeterminate:hover,[type='checkbox']:indeterminate:focus { + border-color: transparent; + background-color: currentColor; +} + +[type='file'] { + background: unset; + border-color: inherit; + border-width: 0; + border-radius: 0; + padding: 0; + font-size: unset; + line-height: inherit; +} + +[type='file']:focus { + outline: 1px solid ButtonText; + outline: 1px auto -webkit-focus-ring-color; +} + +*, ::before, ::after { + --tw-border-spacing-x: 0; + --tw-border-spacing-y: 0; + --tw-translate-x: 0; + --tw-translate-y: 0; + --tw-rotate: 0; + --tw-skew-x: 0; + --tw-skew-y: 0; + --tw-scale-x: 1; + --tw-scale-y: 1; + --tw-pan-x: ; + --tw-pan-y: ; + --tw-pinch-zoom: ; + --tw-scroll-snap-strictness: proximity; + --tw-gradient-from-position: ; + --tw-gradient-via-position: ; + --tw-gradient-to-position: ; + --tw-ordinal: ; + --tw-slashed-zero: ; + --tw-numeric-figure: ; + --tw-numeric-spacing: ; + --tw-numeric-fraction: ; + --tw-ring-inset: ; + --tw-ring-offset-width: 0px; + --tw-ring-offset-color: #fff; + --tw-ring-color: rgb(59 130 246 / 0.5); + --tw-ring-offset-shadow: 0 0 #0000; + --tw-ring-shadow: 0 0 #0000; + --tw-shadow: 0 0 #0000; + --tw-shadow-colored: 0 0 #0000; + --tw-blur: ; + --tw-brightness: ; + --tw-contrast: ; + --tw-grayscale: ; + --tw-hue-rotate: ; + --tw-invert: ; + --tw-saturate: ; + --tw-sepia: ; + --tw-drop-shadow: ; + --tw-backdrop-blur: ; + --tw-backdrop-brightness: ; + --tw-backdrop-contrast: ; + --tw-backdrop-grayscale: ; + --tw-backdrop-hue-rotate: ; + --tw-backdrop-invert: ; + --tw-backdrop-opacity: ; + --tw-backdrop-saturate: ; + --tw-backdrop-sepia: ; +} + +::backdrop { + --tw-border-spacing-x: 0; + --tw-border-spacing-y: 0; + --tw-translate-x: 0; + --tw-translate-y: 0; + --tw-rotate: 0; + --tw-skew-x: 0; + --tw-skew-y: 0; + --tw-scale-x: 1; + --tw-scale-y: 1; + --tw-pan-x: ; + --tw-pan-y: ; + --tw-pinch-zoom: ; + --tw-scroll-snap-strictness: proximity; + --tw-gradient-from-position: ; + --tw-gradient-via-position: ; + --tw-gradient-to-position: ; + --tw-ordinal: ; + --tw-slashed-zero: ; + --tw-numeric-figure: ; + --tw-numeric-spacing: ; + --tw-numeric-fraction: ; + --tw-ring-inset: ; + --tw-ring-offset-width: 0px; + --tw-ring-offset-color: #fff; + --tw-ring-color: rgb(59 130 246 / 0.5); + --tw-ring-offset-shadow: 0 0 #0000; + --tw-ring-shadow: 0 0 #0000; + --tw-shadow: 0 0 #0000; + --tw-shadow-colored: 0 0 #0000; + --tw-blur: ; + --tw-brightness: ; + --tw-contrast: ; + --tw-grayscale: ; + --tw-hue-rotate: ; + --tw-invert: ; + --tw-saturate: ; + --tw-sepia: ; + --tw-drop-shadow: ; + --tw-backdrop-blur: ; + --tw-backdrop-brightness: ; + --tw-backdrop-contrast: ; + --tw-backdrop-grayscale: ; + --tw-backdrop-hue-rotate: ; + --tw-backdrop-invert: ; + --tw-backdrop-opacity: ; + --tw-backdrop-saturate: ; + --tw-backdrop-sepia: ; +} + +.static { + position: static; +} + +.relative { + position: relative; +} + +.flex { + display: flex; +} + +.h-auto { + height: auto; +} + +.min-h-\[200px\] { + min-height: 200px; +} + +.w-full { + width: 100%; +} + +.flex-col { + flex-direction: column; +} + +.flex-wrap { + flex-wrap: wrap; +} + +.items-center { + align-items: center; +} + +.justify-center { + justify-content: center; +} + +.bg-gray-400\/10 { + background-color: rgb(156 163 175 / 0.1); +} + +.pt-6 { + padding-top: 1.5rem; +} + +.text-\[--brand-color\] { + color: var(--brand-color); +} + +.text-green-600 { + --tw-text-opacity: 1; + color: rgb(22 163 74 / var(--tw-text-opacity)); +} + +.opacity-75 { + opacity: 0.75; +} + +@media (prefers-color-scheme: dark) { + .dark\:text-green-500 { + --tw-text-opacity: 1; + color: rgb(34 197 94 / var(--tw-text-opacity)); + } +} \ No newline at end of file diff --git a/examples/use_drop_zone/tailwind.config.js b/examples/use_drop_zone/tailwind.config.js new file mode 100644 index 0000000..bc09f5e --- /dev/null +++ b/examples/use_drop_zone/tailwind.config.js @@ -0,0 +1,15 @@ +/** @type {import('tailwindcss').Config} */ +module.exports = { + content: { + files: ["*.html", "./src/**/*.rs", "../../src/docs/**/*.rs"], + }, + theme: { + extend: {}, + }, + corePlugins: { + preflight: false, + }, + plugins: [ + require('@tailwindcss/forms'), + ], +} \ No newline at end of file diff --git a/src/lib.rs b/src/lib.rs index 6008a83..13ec1cc 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -28,6 +28,7 @@ mod use_css_var; mod use_cycle_list; mod use_debounce_fn; mod use_document_visibility; +mod use_drop_zone; mod use_element_hover; mod use_element_visibility; mod use_event_listener; @@ -61,6 +62,7 @@ pub use use_css_var::*; pub use use_cycle_list::*; pub use use_debounce_fn::*; pub use use_document_visibility::*; +pub use use_drop_zone::*; pub use use_element_hover::*; pub use use_element_visibility::*; pub use use_event_listener::*; diff --git a/src/use_drop_zone.rs b/src/use_drop_zone.rs new file mode 100644 index 0000000..a6d2067 --- /dev/null +++ b/src/use_drop_zone.rs @@ -0,0 +1,179 @@ +use crate::core::ElementMaybeSignal; +use crate::use_event_listener; +use crate::utils::CloneableFnMutWithArg; +use default_struct_builder::DefaultBuilder; +use leptos::ev::{dragenter, dragleave, dragover, drop}; +use leptos::*; + +/// Create a zone where files can be dropped. +/// +/// ## Demo +/// +/// [Link to Demo](https://github.com/Synphonyte/leptos-use/tree/main/examples/use_drop_zone) +/// +/// ## Usage +/// +/// ``` +/// # use leptos::*; +/// # use leptos::html::Div; +/// # use leptos_use::{use_drop_zone_with_options, UseDropZoneOptions, UseDropZoneReturn}; +/// # +/// # #[component] +/// # fn Demo(cx: Scope) -> impl IntoView { +/// let drop_zone_el = create_node_ref::
(cx); +/// +/// let on_drop = |event| { +/// // called when files are dropped on zone +/// }; +/// +/// let UseDropZoneReturn { +/// is_over_drop_zone, +/// .. +/// } = use_drop_zone_with_options( +/// cx, +/// drop_zone_el, +/// UseDropZoneOptions::default().on_drop(on_drop) +/// ); +/// +/// view! { cx, +///
+/// "Drop files here" +///
+/// } +/// # } +/// ``` +/// +/// ## Server-Side Rendering +/// +/// Please refer to ["Functions with Target Elements"](https://leptos-use.rs/server_side_rendering.html#functions-with-target-elements) +pub fn use_drop_zone(cx: Scope, target: El) -> UseDropZoneReturn +where + El: Clone, + (Scope, El): Into>, + T: Into + Clone + 'static, +{ + use_drop_zone_with_options(cx, target, UseDropZoneOptions::default()) +} + +/// Version of [`use_drop_zone`] that takes a `UseDropZoneOptions`. See [`use_drop_zone`] for how to use. +pub fn use_drop_zone_with_options( + cx: Scope, + target: El, + options: UseDropZoneOptions, +) -> UseDropZoneReturn +where + El: Clone, + (Scope, El): Into>, + T: Into + Clone + 'static, +{ + let UseDropZoneOptions { + mut on_drop, + mut on_enter, + mut on_leave, + mut on_over, + } = options; + + let (is_over_drop_zone, set_over_drop_zone) = create_signal(cx, false); + let (files, set_files) = create_signal(cx, Vec::::new()); + + let counter = store_value(cx, 0_usize); + + let update_files = move |event: &web_sys::DragEvent| { + if let Some(data_transfer) = event.data_transfer() { + let files: Vec = data_transfer + .files() + .map(|f| js_sys::Array::from(&f).to_vec()) + .unwrap_or_default() + .into_iter() + .map(web_sys::File::from) + .collect(); + + set_files.update(move |f| *f = files); + } + }; + + let _ = use_event_listener(cx, target.clone(), dragenter, move |event| { + event.prevent_default(); + counter.update_value(|counter| *counter += 1); + set_over_drop_zone.set(true); + + update_files(&event); + + on_enter(UseDropZoneEvent { + files: files.get(), + event, + }); + }); + + let _ = use_event_listener(cx, target.clone(), dragover, move |event| { + event.prevent_default(); + update_files(&event); + on_over(UseDropZoneEvent { + files: files.get(), + event, + }); + }); + + let _ = use_event_listener(cx, target.clone(), dragleave, move |event| { + event.prevent_default(); + counter.update_value(|counter| *counter -= 1); + if counter.get_value() == 0 { + set_over_drop_zone.set(false); + } + + update_files(&event); + + on_leave(UseDropZoneEvent { + files: files.get(), + event, + }); + }); + + let _ = use_event_listener(cx, target, drop, move |event| { + event.prevent_default(); + counter.update_value(|counter| *counter = 0); + set_over_drop_zone.set(false); + + update_files(&event); + + on_drop(UseDropZoneEvent { + files: files.get(), + event, + }); + }); + + UseDropZoneReturn { + files: files.into(), + is_over_drop_zone: is_over_drop_zone.into(), + } +} + +/// Options for [`use_drop_zone_with_options`]. +#[derive(DefaultBuilder, Default, Clone, Debug)] +pub struct UseDropZoneOptions { + /// Event handler for the [`drop`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/drop_event) event + on_drop: Box>, + /// Event handler for the [`dragenter`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/dragenter_event) event + on_enter: Box>, + /// Event handler for the [`dragleave`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/dragleave_event) event + on_leave: Box>, + /// Event handler for the [`dragover`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/dragover_event) event + on_over: Box>, +} + +/// Event passed as argument to the event handler functions of `UseDropZoneOptions`. +#[derive(Clone, Debug)] +pub struct UseDropZoneEvent { + /// Files being handled + pub files: Vec, + /// The original drag event + pub event: web_sys::DragEvent, +} + +/// Return type of [`use_drop_zone`]. +pub struct UseDropZoneReturn { + /// Files being handled + pub files: Signal>, + /// Whether the files (dragged by the pointer) are over the drop zone + pub is_over_drop_zone: Signal, +}