use ratatui todo list example
This commit is contained in:
Fabien Freling
parent
2f3fac1a58
commit
888ada6a07
7 changed files with 435 additions and 70 deletions
2
.gitignore
vendored
2
.gitignore
vendored
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@ -1 +1 @@
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/target/
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target
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142
Cargo.lock
generated
142
Cargo.lock
generated
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@ -172,6 +172,62 @@ dependencies = [
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"syn",
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]
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[[package]]
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name = "deranged"
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version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9c9e6a11ca8224451684bc0d7d5a7adbf8f2fd6887261a1cfc3c0432f9d4068e"
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dependencies = [
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"powerfmt",
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]
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[[package]]
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name = "diesel"
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version = "2.2.11"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a917a9209950404d5be011c81d081a2692a822f73c3d6af586f0cab5ff50f614"
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dependencies = [
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"diesel_derives",
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"libsqlite3-sys",
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"time",
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]
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[[package]]
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name = "diesel_derives"
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version = "2.2.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "52841e97814f407b895d836fa0012091dff79c6268f39ad8155d384c21ae0d26"
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dependencies = [
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"diesel_table_macro_syntax",
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"dsl_auto_type",
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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name = "diesel_table_macro_syntax"
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version = "0.2.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "209c735641a413bc68c4923a9d6ad4bcb3ca306b794edaa7eb0b3228a99ffb25"
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dependencies = [
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"syn",
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]
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[[package]]
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name = "dsl_auto_type"
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version = "0.1.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "139ae9aca7527f85f26dd76483eb38533fd84bd571065da1739656ef71c5ff5b"
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dependencies = [
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"darling",
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"either",
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"heck",
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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name = "either"
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version = "1.15.0"
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@ -297,6 +353,16 @@ version = "0.2.173"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d8cfeafaffdbc32176b64fb251369d52ea9f0a8fbc6f8759edffef7b525d64bb"
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[[package]]
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name = "libsqlite3-sys"
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version = "0.33.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "947e6816f7825b2b45027c2c32e7085da9934defa535de4a6a46b10a4d5257fa"
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dependencies = [
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"pkg-config",
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"vcpkg",
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]
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[[package]]
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name = "linux-raw-sys"
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version = "0.4.15"
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@ -355,6 +421,12 @@ dependencies = [
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"windows-sys",
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]
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[[package]]
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name = "num-conv"
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version = "0.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "51d515d32fb182ee37cda2ccdcb92950d6a3c2893aa280e540671c2cd0f3b1d9"
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[[package]]
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name = "object"
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version = "0.36.7"
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@ -411,6 +483,18 @@ version = "0.2.16"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3b3cff922bd51709b605d9ead9aa71031d81447142d828eb4a6eba76fe619f9b"
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[[package]]
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name = "pkg-config"
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version = "0.3.32"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7edddbd0b52d732b21ad9a5fab5c704c14cd949e5e9a1ec5929a24fded1b904c"
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[[package]]
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name = "powerfmt"
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version = "0.2.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "439ee305def115ba05938db6eb1644ff94165c5ab5e9420d1c1bcedbba909391"
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[[package]]
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name = "proc-macro2"
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version = "1.0.95"
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@ -496,6 +580,26 @@ version = "1.2.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
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[[package]]
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name = "serde"
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version = "1.0.219"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5f0e2c6ed6606019b4e29e69dbaba95b11854410e5347d525002456dbbb786b6"
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dependencies = [
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"serde_derive",
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]
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[[package]]
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name = "serde_derive"
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version = "1.0.219"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5b0276cf7f2c73365f7157c8123c21cd9a50fbbd844757af28ca1f5925fc2a00"
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dependencies = [
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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name = "sharded-slab"
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version = "0.1.7"
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@ -595,12 +699,44 @@ dependencies = [
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"cfg-if",
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]
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[[package]]
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name = "time"
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version = "0.3.41"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8a7619e19bc266e0f9c5e6686659d394bc57973859340060a69221e57dbc0c40"
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dependencies = [
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"deranged",
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"itoa",
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"num-conv",
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"powerfmt",
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"serde",
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"time-core",
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"time-macros",
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]
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[[package]]
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name = "time-core"
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version = "0.1.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c9e9a38711f559d9e3ce1cdb06dd7c5b8ea546bc90052da6d06bb76da74bb07c"
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[[package]]
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name = "time-macros"
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version = "0.2.22"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3526739392ec93fd8b359c8e98514cb3e8e021beb4e5f597b00a0221f8ed8a49"
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dependencies = [
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"num-conv",
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"time-core",
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]
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[[package]]
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name = "todo"
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version = "0.1.0"
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dependencies = [
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"color-eyre",
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"crossterm",
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"diesel",
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"ratatui",
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]
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@ -686,6 +822,12 @@ version = "0.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ba73ea9cf16a25df0c8caa16c51acb937d5712a8429db78a3ee29d5dcacd3a65"
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[[package]]
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name = "vcpkg"
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version = "0.2.15"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
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[[package]]
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name = "wasi"
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version = "0.11.1+wasi-snapshot-preview1"
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@ -10,3 +10,5 @@ edition = "2024"
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crossterm = "0.28.1"
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ratatui = "0.29.0"
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color-eyre = "0.6.3"
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diesel = { version = "2.2", features = ["sqlite", "returning_clauses_for_sqlite_3_35"] }
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9
diesel.toml
Normal file
9
diesel.toml
Normal file
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@ -0,0 +1,9 @@
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# For documentation on how to configure this file,
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# see https://diesel.rs/guides/configuring-diesel-cli
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[print_schema]
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file = "src/schema.rs"
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custom_type_derives = ["diesel::query_builder::QueryId", "Clone"]
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[migrations_directory]
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dir = "/home/ffreling/code/todo/migrations"
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@ -17,9 +17,10 @@
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nativeBuildInputs = [
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rust-toolchain
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cargo-generate
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# rust-analyzer-nightly
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diesel-cli
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just
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lazysql
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];
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};
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};
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15
justfile
15
justfile
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@ -1,3 +1,5 @@
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set dotenv-load
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alias b := build
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build:
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cargo build
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@ -5,3 +7,16 @@ build:
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alias r := run
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run:
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cargo run
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db-setup:
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diesel setup
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db-update desc:
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diesel migration generate --diff-schema {{ desc }}
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db-migrate:
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diesel migration run
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diesel migration redo
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db-inspect:
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lazysql $DATABASE_URL
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332
src/main.rs
332
src/main.rs
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@ -1,92 +1,288 @@
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use color_eyre::Result;
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use crossterm::event::{self, Event, KeyCode, KeyEvent, KeyEventKind, KeyModifiers};
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use ratatui::{
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DefaultTerminal, Frame,
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style::Stylize,
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DefaultTerminal,
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buffer::Buffer,
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crossterm::event::{self, Event, KeyCode, KeyEvent, KeyEventKind},
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layout::{Constraint, Layout, Rect},
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style::{
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Color, Modifier, Style, Stylize,
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palette::tailwind::{BLUE, GREEN, SLATE},
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},
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symbols,
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text::Line,
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widgets::{Block, Paragraph},
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widgets::{
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Block, Borders, HighlightSpacing, List, ListItem, ListState, Padding, Paragraph,
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StatefulWidget, Widget, Wrap,
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},
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};
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fn main() -> color_eyre::Result<()> {
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const TODO_HEADER_STYLE: Style = Style::new().fg(SLATE.c100).bg(BLUE.c800);
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const NORMAL_ROW_BG: Color = SLATE.c950;
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const ALT_ROW_BG_COLOR: Color = SLATE.c900;
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const SELECTED_STYLE: Style = Style::new().bg(SLATE.c800).add_modifier(Modifier::BOLD);
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const TEXT_FG_COLOR: Color = SLATE.c200;
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const COMPLETED_TEXT_FG_COLOR: Color = GREEN.c500;
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fn main() -> Result<()> {
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color_eyre::install()?;
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let terminal = ratatui::init();
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let result = App::new().run(terminal);
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let app_result = App::default().run(terminal);
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ratatui::restore();
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result
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app_result
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}
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/// The main application which holds the state and logic of the application.
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#[derive(Debug, Default)]
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pub struct App {
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/// Is the application running?
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running: bool,
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struct App {
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should_exit: bool,
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todo_list: TodoList,
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}
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struct TodoList {
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items: Vec<TodoItem>,
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state: ListState,
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}
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#[derive(Debug)]
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struct TodoItem {
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todo: String,
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info: String,
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status: Status,
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}
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#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
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enum Status {
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Todo,
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Completed,
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}
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impl Default for App {
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fn default() -> Self {
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Self {
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should_exit: false,
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todo_list: TodoList::from_iter([
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(
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Status::Todo,
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"Rewrite everything with Rust!",
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"I can't hold my inner voice. He tells me to rewrite the complete universe with Rust",
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),
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(
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Status::Completed,
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"Rewrite all of your tui apps with Ratatui",
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"Yes, you heard that right. Go and replace your tui with Ratatui.",
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),
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(
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Status::Todo,
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"Pet your cat",
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"Minnak loves to be pet by you! Don't forget to pet and give some treats!",
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),
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(
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Status::Todo,
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"Walk with your dog",
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"Max is bored, go walk with him!",
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),
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(
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Status::Completed,
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"Pay the bills",
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"Pay the train subscription!!!",
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),
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(
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Status::Completed,
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"Refactor list example",
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"If you see this info that means I completed this task!",
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),
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]),
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}
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}
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}
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impl FromIterator<(Status, &'static str, &'static str)> for TodoList {
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fn from_iter<I: IntoIterator<Item = (Status, &'static str, &'static str)>>(iter: I) -> Self {
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let items = iter
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.into_iter()
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.map(|(status, todo, info)| TodoItem::new(status, todo, info))
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.collect();
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let state = ListState::default();
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Self { items, state }
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}
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}
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impl TodoItem {
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fn new(status: Status, todo: &str, info: &str) -> Self {
|
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Self {
|
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status,
|
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todo: todo.to_string(),
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info: info.to_string(),
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}
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}
|
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}
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impl App {
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/// Construct a new instance of [`App`].
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pub fn new() -> Self {
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Self::default()
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}
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|
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/// Run the application's main loop.
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pub fn run(mut self, mut terminal: DefaultTerminal) -> Result<()> {
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self.running = true;
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while self.running {
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terminal.draw(|frame| self.render(frame))?;
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self.handle_crossterm_events()?;
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fn run(mut self, mut terminal: DefaultTerminal) -> Result<()> {
|
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while !self.should_exit {
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terminal.draw(|frame| frame.render_widget(&mut self, frame.area()))?;
|
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if let Event::Key(key) = event::read()? {
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self.handle_key(key);
|
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};
|
||||
}
|
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Ok(())
|
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}
|
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|
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/// Renders the user interface.
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///
|
||||
/// This is where you add new widgets. See the following resources for more information:
|
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///
|
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/// - <https://docs.rs/ratatui/latest/ratatui/widgets/index.html>
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/// - <https://github.com/ratatui/ratatui/tree/main/ratatui-widgets/examples>
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fn render(&mut self, frame: &mut Frame) {
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let title = Line::from("Ratatui Simple Template")
|
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.bold()
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.blue()
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.centered();
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let text = "Hello, Ratatui!\n\n\
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Created using https://github.com/ratatui/templates\n\
|
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Press `Esc`, `Ctrl-C` or `q` to stop running.";
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frame.render_widget(
|
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Paragraph::new(text)
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.block(Block::bordered().title(title))
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.centered(),
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frame.area(),
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)
|
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}
|
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|
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/// Reads the crossterm events and updates the state of [`App`].
|
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///
|
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/// If your application needs to perform work in between handling events, you can use the
|
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/// [`event::poll`] function to check if there are any events available with a timeout.
|
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fn handle_crossterm_events(&mut self) -> Result<()> {
|
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match event::read()? {
|
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// it's important to check KeyEventKind::Press to avoid handling key release events
|
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Event::Key(key) if key.kind == KeyEventKind::Press => self.on_key_event(key),
|
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Event::Mouse(_) => {}
|
||||
Event::Resize(_, _) => {}
|
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_ => {}
|
||||
fn handle_key(&mut self, key: KeyEvent) {
|
||||
if key.kind != KeyEventKind::Press {
|
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return;
|
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}
|
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Ok(())
|
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}
|
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|
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/// Handles the key events and updates the state of [`App`].
|
||||
fn on_key_event(&mut self, key: KeyEvent) {
|
||||
match (key.modifiers, key.code) {
|
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(_, KeyCode::Esc | KeyCode::Char('q'))
|
||||
| (KeyModifiers::CONTROL, KeyCode::Char('c') | KeyCode::Char('C')) => self.quit(),
|
||||
// Add other key handlers here.
|
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match key.code {
|
||||
KeyCode::Char('q') | KeyCode::Esc => self.should_exit = true,
|
||||
KeyCode::Char('h') | KeyCode::Left => self.select_none(),
|
||||
KeyCode::Char('j') | KeyCode::Down => self.select_next(),
|
||||
KeyCode::Char('k') | KeyCode::Up => self.select_previous(),
|
||||
KeyCode::Char('g') | KeyCode::Home => self.select_first(),
|
||||
KeyCode::Char('G') | KeyCode::End => self.select_last(),
|
||||
KeyCode::Enter | KeyCode::Char(' ') => self.toggle_status(),
|
||||
_ => {}
|
||||
}
|
||||
}
|
||||
|
||||
/// Set running to false to quit the application.
|
||||
fn quit(&mut self) {
|
||||
self.running = false;
|
||||
fn select_none(&mut self) {
|
||||
self.todo_list.state.select(None);
|
||||
}
|
||||
|
||||
fn select_next(&mut self) {
|
||||
self.todo_list.state.select_next();
|
||||
}
|
||||
fn select_previous(&mut self) {
|
||||
self.todo_list.state.select_previous();
|
||||
}
|
||||
|
||||
fn select_first(&mut self) {
|
||||
self.todo_list.state.select_first();
|
||||
}
|
||||
|
||||
fn select_last(&mut self) {
|
||||
self.todo_list.state.select_last();
|
||||
}
|
||||
|
||||
/// Changes the status of the selected list item
|
||||
fn toggle_status(&mut self) {
|
||||
if let Some(i) = self.todo_list.state.selected() {
|
||||
self.todo_list.items[i].status = match self.todo_list.items[i].status {
|
||||
Status::Completed => Status::Todo,
|
||||
Status::Todo => Status::Completed,
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Widget for &mut App {
|
||||
fn render(self, area: Rect, buf: &mut Buffer) {
|
||||
let [header_area, main_area, footer_area] = Layout::vertical([
|
||||
Constraint::Length(2),
|
||||
Constraint::Fill(1),
|
||||
Constraint::Length(1),
|
||||
])
|
||||
.areas(area);
|
||||
|
||||
let [list_area, item_area] =
|
||||
Layout::vertical([Constraint::Fill(1), Constraint::Fill(1)]).areas(main_area);
|
||||
|
||||
App::render_header(header_area, buf);
|
||||
App::render_footer(footer_area, buf);
|
||||
self.render_list(list_area, buf);
|
||||
self.render_selected_item(item_area, buf);
|
||||
}
|
||||
}
|
||||
|
||||
/// Rendering logic for the app
|
||||
impl App {
|
||||
fn render_header(area: Rect, buf: &mut Buffer) {
|
||||
Paragraph::new("Ratatui List Example")
|
||||
.bold()
|
||||
.centered()
|
||||
.render(area, buf);
|
||||
}
|
||||
|
||||
fn render_footer(area: Rect, buf: &mut Buffer) {
|
||||
Paragraph::new("Use ↓↑ to move, ← to unselect, → to change status, g/G to go top/bottom.")
|
||||
.centered()
|
||||
.render(area, buf);
|
||||
}
|
||||
|
||||
fn render_list(&mut self, area: Rect, buf: &mut Buffer) {
|
||||
let block = Block::new()
|
||||
.title(Line::raw("TODO List").centered())
|
||||
.borders(Borders::TOP)
|
||||
.border_set(symbols::border::EMPTY)
|
||||
.border_style(TODO_HEADER_STYLE)
|
||||
.bg(NORMAL_ROW_BG);
|
||||
|
||||
// Iterate through all elements in the `items` and stylize them.
|
||||
let items: Vec<ListItem> = self
|
||||
.todo_list
|
||||
.items
|
||||
.iter()
|
||||
.enumerate()
|
||||
.map(|(i, todo_item)| {
|
||||
let color = alternate_colors(i);
|
||||
ListItem::from(todo_item).bg(color)
|
||||
})
|
||||
.collect();
|
||||
|
||||
// Create a List from all list items and highlight the currently selected one
|
||||
let list = List::new(items)
|
||||
.block(block)
|
||||
.highlight_style(SELECTED_STYLE)
|
||||
.highlight_symbol(">")
|
||||
.highlight_spacing(HighlightSpacing::Always);
|
||||
|
||||
// We need to disambiguate this trait method as both `Widget` and `StatefulWidget` share the
|
||||
// same method name `render`.
|
||||
StatefulWidget::render(list, area, buf, &mut self.todo_list.state);
|
||||
}
|
||||
|
||||
fn render_selected_item(&self, area: Rect, buf: &mut Buffer) {
|
||||
// We get the info depending on the item's state.
|
||||
let info = if let Some(i) = self.todo_list.state.selected() {
|
||||
match self.todo_list.items[i].status {
|
||||
Status::Completed => format!("✓ DONE: {}", self.todo_list.items[i].info),
|
||||
Status::Todo => format!("☐ TODO: {}", self.todo_list.items[i].info),
|
||||
}
|
||||
} else {
|
||||
"Nothing selected...".to_string()
|
||||
};
|
||||
|
||||
// We show the list item's info under the list in this paragraph
|
||||
let block = Block::new()
|
||||
.title(Line::raw("TODO Info").centered())
|
||||
.borders(Borders::TOP)
|
||||
.border_set(symbols::border::EMPTY)
|
||||
.border_style(TODO_HEADER_STYLE)
|
||||
.bg(NORMAL_ROW_BG)
|
||||
.padding(Padding::horizontal(1));
|
||||
|
||||
// We can now render the item info
|
||||
Paragraph::new(info)
|
||||
.block(block)
|
||||
.fg(TEXT_FG_COLOR)
|
||||
.wrap(Wrap { trim: false })
|
||||
.render(area, buf);
|
||||
}
|
||||
}
|
||||
|
||||
const fn alternate_colors(i: usize) -> Color {
|
||||
if i % 2 == 0 {
|
||||
NORMAL_ROW_BG
|
||||
} else {
|
||||
ALT_ROW_BG_COLOR
|
||||
}
|
||||
}
|
||||
|
||||
impl From<&TodoItem> for ListItem<'_> {
|
||||
fn from(value: &TodoItem) -> Self {
|
||||
let line = match value.status {
|
||||
Status::Todo => Line::styled(format!(" ☐ {}", value.todo), TEXT_FG_COLOR),
|
||||
Status::Completed => {
|
||||
Line::styled(format!(" ✓ {}", value.todo), COMPLETED_TEXT_FG_COLOR)
|
||||
}
|
||||
};
|
||||
ListItem::new(line)
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue