Add basic filtering in config

Cargo.lock

@@ -1,5 +1,13 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+[[package]]
+name = "aho-corasick"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "ansi_term"
 version = "0.11.0"
@@ -164,6 +172,7 @@ dependencies = [
  "clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "cmake 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "dirs 2.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.99 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_yaml 0.8.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "widestring 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -209,6 +218,11 @@ name = "linked-hash-map"
 version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "memchr"
+version = "2.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "nodrop"
 version = "0.1.13"
@@ -296,6 +310,22 @@ dependencies = [
  "rust-argon2 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "regex"
+version = "1.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "aho-corasick 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.6.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "rust-argon2"
 version = "0.5.1"
@@ -384,6 +414,14 @@ dependencies = [
  "unicode-width 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "thread_local"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "unicode-width"
 version = "0.1.6"
@@ -437,6 +475,7 @@ dependencies = [
 ]
 
 [metadata]
+"checksum aho-corasick 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)" = "58fb5e95d83b38284460a5fda7d6470aa0b8844d283a0b614b8535e880800d2d"
 "checksum ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ee49baf6cb617b853aa8d93bf420db2383fab46d314482ca2803b40d5fde979b"
 "checksum arrayref 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "0d382e583f07208808f6b1249e60848879ba3543f57c32277bf52d69c2f0f0ee"
 "checksum arrayvec 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)" = "b8d73f9beda665eaa98ab9e4f7442bd4e7de6652587de55b2525e52e29c1b0ba"
@@ -463,6 +502,7 @@ dependencies = [
 "checksum lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 "checksum libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)" = "34fcd2c08d2f832f376f4173a231990fa5aef4e99fb569867318a227ef4c06ba"
 "checksum linked-hash-map 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "ae91b68aebc4ddb91978b11a1b02ddd8602a05ec19002801c5666000e05e0f83"
+"checksum memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "88579771288728879b57485cc7d6b07d648c9f0141eb955f8ab7f9d45394468e"
 "checksum nodrop 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)" = "2f9667ddcc6cc8a43afc9b7917599d7216aa09c463919ea32c59ed6cac8bc945"
 "checksum proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)" = "cf3d2011ab5c909338f7887f4fc896d35932e29146c12c8d01da6b22a80ba759"
 "checksum proc-macro2 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "175a40b9cf564ce9bf050654633dbf339978706b8ead1a907bb970b63185dd95"
@@ -474,6 +514,8 @@ dependencies = [
 "checksum rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "678054eb77286b51581ba43620cc911abf02758c91f93f479767aed0f90458b2"
 "checksum redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)" = "2439c63f3f6139d1b57529d16bc3b8bb855230c8efcc5d3a896c8bea7c3b1e84"
 "checksum redox_users 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4ecedbca3bf205f8d8f5c2b44d83cd0690e39ee84b951ed649e9f1841132b66d"
+"checksum regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dc220bd33bdce8f093101afe22a037b8eb0e5af33592e6a9caafff0d4cb81cbd"
+"checksum regex-syntax 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)" = "11a7e20d1cce64ef2fed88b66d347f88bd9babb82845b2b858f3edbf59a4f716"
 "checksum rust-argon2 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4ca4eaef519b494d1f2848fc602d18816fed808a981aedf4f1f00ceb7c9d32cf"
 "checksum rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)" = "4c691c0e608126e00913e33f0ccf3727d5fc84573623b8d65b2df340b5201783"
 "checksum serde 1.0.99 (registry+https://github.com/rust-lang/crates.io-index)" = "fec2851eb56d010dc9a21b89ca53ee75e6528bab60c11e89d38390904982da9f"
@@ -484,6 +526,7 @@ dependencies = [
 "checksum syn 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "66850e97125af79138385e9b88339cbcd037e3f28ceab8c5ad98e64f0f1f80bf"
 "checksum synstructure 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)" = "02353edf96d6e4dc81aea2d8490a7e9db177bf8acb0e951c24940bf866cb313f"
 "checksum textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
+"checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
 "checksum unicode-width 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "7007dbd421b92cc6e28410fe7362e2e0a2503394908f417b68ec8d1c364c4e20"
 "checksum unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
 "checksum unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"

Cargo.toml

@@ -11,6 +11,7 @@ serde = { version = "1.0", features = ["derive"] }
 serde_yaml = "0.8"
 dirs = "2.0.2"
 clap = "2.33.0"
+regex = "1.3.1"
 
 [build-dependencies]
 cmake = "0.1.31"

src/config.rs

@@ -9,6 +9,7 @@ use serde::{Serialize, Deserialize};
 use crate::keyboard::KeyModifier;
 use crate::system::SystemManager;
 use std::collections::HashSet;
+use regex::Regex;
 
 // TODO: add documentation link
 const DEFAULT_CONFIG_FILE_CONTENT : &str = include_str!("res/config.yaml");
@@ -18,18 +19,19 @@ const DEFAULT_CONFIG_FILE_NAME : &str = "default.yaml";
 
 // Default values for primitives
 fn default_name() -> String{ "default".to_owned() }
-fn default_toggle_interval() -> u32 {
+fn default_filter_title() -> String{ "".to_owned() }
-    230
+fn default_toggle_interval() -> u32 { 230 }
-}
+fn default_backspace_limit() -> i32 { 3 }
-fn default_backspace_limit() -> i32 {
+fn default_matches() -> Vec<Match> { Vec::new() }
-    3
-}
 
 #[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct Configs {
     #[serde(default = "default_name")]
     pub name: String,
 
+    #[serde(default = "default_filter_title")]
+    pub filter_title: String,
+
     #[serde(default)]
     pub toggle_key: KeyModifier,
 
@@ -42,6 +44,7 @@ pub struct Configs {
     #[serde(default)]
     pub backend: BackendType,
 
+    #[serde(default = "default_matches")]
     pub matches: Vec<Match>
 }
 
@@ -161,37 +164,77 @@ pub trait ConfigManager {
 
 pub struct RuntimeConfigManager<S: SystemManager> {
     set: ConfigSet,
+    title_regexps: Vec<Option<Regex>>,
 
     system_manager: S
 }
 
 impl <S: SystemManager> RuntimeConfigManager<S> {
     pub fn new(set: ConfigSet, system_manager: S) -> RuntimeConfigManager<S> {
+        // Compile all the regexps
+        let title_regexps = set.specific.iter().map(
+            |config| {
+                if config.filter_title.is_empty() {
+                    None
+                }else{
+                    let res = Regex::new(&config.filter_title);
+                    if let Ok(regex) = res {
+                        Some(regex)
+                    }else{
+                        // TODO: log invalid regex error
+                        None
+                    }
+                }
+            }
+        ).collect();
+
         RuntimeConfigManager {
             set,
+            title_regexps,
             system_manager
         }
     }
 }
 
+impl <S: SystemManager> RuntimeConfigManager<S> {
+    fn active_config(&self) -> &Configs {
+        // TODO: optimize performance by avoiding some of these checks if no Configs use the filters
+
+        let active_title = self.system_manager.get_current_window_title();
+
+        if let Some(title) = active_title {
+            for (i, regex) in self.title_regexps.iter().enumerate() {
+                if let Some(regex) = regex {
+                    if regex.is_match(&title) {
+                        return &self.set.specific[i]
+                    }
+                }
+            }
+        }
+
+        // No matches, return the default mapping
+        &self.set.default
+    }
+}
+
 impl <S: SystemManager> ConfigManager for RuntimeConfigManager<S> {
     fn toggle_key(&self) -> &KeyModifier {
-        &self.set.default.toggle_key
+        &self.active_config().toggle_key
     }
 
     fn toggle_interval(&self) -> u32 {
-        self.set.default.toggle_interval
+        self.active_config().toggle_interval
     }
 
     fn backspace_limit(&self) -> i32 {
-        self.set.default.backspace_limit
+        self.active_config().backspace_limit
     }
 
     fn backend(&self) -> &BackendType {
-        &BackendType::Inject // TODO make dynamic based on system current active app
+        &self.active_config().backend
     }
 
     fn matches(&self) -> &Vec<Match> {
-        &self.set.default.matches
+        &self.active_config().matches
     }
 }