Add chromium based pdf support

Signed-off-by: trivernis <trivernis@protonmail.com>

Cargo.lock

@@ -1,5 +1,13 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+[[package]]
+name = "addr2line"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "gimli 0.23.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "adler"
 version = "0.2.3"
@@ -52,11 +60,46 @@ dependencies = [
  "winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "autocfg"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "autocfg"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
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+dependencies = [
+ "addr2line 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
+ "miniz_oxide 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "object 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-demangle 0.1.18 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "base64"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "safemem 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "base64"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "base64"
 version = "0.12.3"
@@ -121,6 +164,11 @@ name = "cfg-if"
 version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "charred"
 version = "0.3.3"
@@ -160,6 +208,14 @@ dependencies = [
  "vec_map 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "cloudabi"
+version = "0.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "colored"
 version = "1.9.3"
@@ -257,6 +313,61 @@ dependencies = [
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
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+ "darling_core 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "darling_macro 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
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+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "ident_case 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "strsim 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
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+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "darling_core 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "darling 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "derive_builder_core 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "derive_builder_core"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "darling 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.15.44 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "dirs"
 version = "2.0.2"
@@ -299,6 +410,18 @@ dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "env_logger"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "atty 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "humantime 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "termcolor 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "env_logger"
 version = "0.7.1"
@@ -311,6 +434,26 @@ dependencies = [
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 ]
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "backtrace 0.3.55 (registry+https://github.com/rust-lang/crates.io-index)",
+ "failure_derive 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "proc-macro2 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "synstructure 0.12.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
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@@ -368,6 +511,11 @@ dependencies = [
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 ]
 
+[[package]]
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+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
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@@ -446,6 +594,11 @@ dependencies = [
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+version = "0.23.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
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 name = "h2"
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@@ -472,6 +625,27 @@ dependencies = [
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 ]
 
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+ "regex 1.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_derive 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.57 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "websocket 0.23.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "which 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winreg 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
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+ "httparse 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mime 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
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 ]
 
+[[package]]
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+version = "1.0.1"
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+
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+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+
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@@ -671,6 +883,14 @@ name = "linked-hash-map"
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+[[package]]
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+dependencies = [
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+]
+
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@@ -707,6 +927,14 @@ dependencies = [
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+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
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@@ -849,6 +1077,11 @@ name = "number_prefix"
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+[[package]]
+name = "object"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
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@@ -904,6 +1137,11 @@ dependencies = [
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 ]
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+
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@@ -1006,6 +1244,14 @@ dependencies = [
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
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@@ -1019,6 +1265,14 @@ name = "quick-error"
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+[[package]]
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+]
+
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@@ -1027,6 +1281,24 @@ dependencies = [
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 ]
 
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+ "winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
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@@ -1039,6 +1311,15 @@ dependencies = [
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 ]
 
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+ "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
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@@ -1048,6 +1329,19 @@ dependencies = [
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 ]
 
+[[package]]
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+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
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+]
+
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+
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@@ -1056,6 +1350,14 @@ dependencies = [
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 ]
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
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+]
+
 [[package]]
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@@ -1064,6 +1366,54 @@ dependencies = [
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 ]
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+
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+ "rand_core 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
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+
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+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "rand_core 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
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@@ -1087,6 +1437,14 @@ dependencies = [
  "num_cpus 1.13.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
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+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
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@@ -1171,6 +1529,11 @@ dependencies = [
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 ]
 
+[[package]]
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+version = "0.1.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
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@@ -1233,6 +1596,9 @@ dependencies = [
 name = "serde"
 version = "1.0.114"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "serde_derive 1.0.114 (registry+https://github.com/rust-lang/crates.io-index)",
+]
 
 [[package]]
 name = "serde_derive"
@@ -1265,6 +1631,11 @@ dependencies = [
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 ]
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
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@@ -1287,7 +1658,9 @@ dependencies = [
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  "env_logger 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "failure 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "gh-emoji 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "headless_chrome 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "htmlescape 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "indicatif 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1319,6 +1692,11 @@ dependencies = [
  "winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "strsim"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "strsim"
 version = "0.8.0"
@@ -1346,6 +1724,16 @@ dependencies = [
  "syn 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "syn"
+version = "0.15.44"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.6.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-xid 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "syn"
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@@ -1356,6 +1744,17 @@ dependencies = [
  "unicode-xid 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "synstructure"
+version = "0.12.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "proc-macro2 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 1.0.38 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-xid 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "syntect"
 version = "4.3.0"
@@ -1515,11 +1914,29 @@ dependencies = [
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 ]
 
+[[package]]
+name = "traitobject"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "typeable"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "unicase"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "unicase"
 version = "2.6.0"
@@ -1554,11 +1971,26 @@ name = "unicode-width"
 version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "unicode-xid"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "unicode-xid"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "url"
+version = "1.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "idna 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "percent-encoding 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
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@@ -1579,6 +2011,11 @@ name = "vec_map"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "version_check"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "version_check"
 version = "0.9.2"
@@ -1679,6 +2116,30 @@ dependencies = [
  "wasm-bindgen 0.2.67 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
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+ "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hyper 0.10.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sha1 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
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+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "failure 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.74 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
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@@ -1716,6 +2177,14 @@ name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
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+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "winreg"
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@@ -1747,6 +2216,7 @@ dependencies = [
 ]
 
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@@ -1754,8 +2224,12 @@ dependencies = [
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@@ -1765,10 +2239,12 @@ dependencies = [
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@@ -1779,13 +2255,21 @@ dependencies = [
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@@ -1793,6 +2277,7 @@ dependencies = [
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@@ -1803,8 +2288,10 @@ dependencies = [
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@@ -1812,8 +2299,11 @@ dependencies = [
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+"checksum version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "914b1a6776c4c929a602fafd8bc742e06365d4bcbe48c30f9cca5824f70dc9dd"
 "checksum version_check 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
 "checksum walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "777182bc735b6424e1a57516d35ed72cb8019d85c8c9bf536dccb3445c1a2f7d"
 "checksum want 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1ce8a968cb1cd110d136ff8b819a556d6fb6d919363c61534f6860c7eb172ba0"
@@ -1940,12 +2459,15 @@ dependencies = [
 "checksum wasm-bindgen-macro-support 0.2.67 (registry+https://github.com/rust-lang/crates.io-index)" = "841a6d1c35c6f596ccea1f82504a192a60378f64b3bb0261904ad8f2f5657556"
 "checksum wasm-bindgen-shared 0.2.67 (registry+https://github.com/rust-lang/crates.io-index)" = "93b162580e34310e5931c4b792560108b10fd14d64915d7fff8ff00180e70092"
 "checksum web-sys 0.3.44 (registry+https://github.com/rust-lang/crates.io-index)" = "dda38f4e5ca63eda02c059d243aa25b5f35ab98451e518c51612cd0f1bd19a47"
+"checksum websocket 0.23.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b255b190f412e45000c35be7fe9b48b39a2ac5eb90d093d421694e5dae8b335c"
+"checksum which 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b57acb10231b9493c8472b20cb57317d0679a49e0bdbee44b3b803a6473af164"
 "checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
 "checksum winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
 "checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
 "checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 "checksum winapi-util 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
 "checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+"checksum winreg 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b2986deb581c4fe11b621998a5e53361efe6b48a151178d0cd9eeffa4dc6acc9"
 "checksum winreg 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0120db82e8a1e0b9fb3345a539c478767c0048d842860994d96113d5b667bd69"
 "checksum ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e"
 "checksum xml-rs 0.8.3 (registry+https://github.com/rust-lang/crates.io-index)" = "b07db065a5cf61a7e4ba64f29e67db906fb1787316516c4e6e5ff0fea1efcd8a"

Cargo.toml

@@ -44,3 +44,5 @@ log = "0.4.11"
 env_logger = "0.7.1"
 indicatif = "0.15.0"
 platform-dirs = "0.2.0"
+headless_chrome = "0.9.0"
+failure = "0.1.8"

src/format/chromium_pdf/mod.rs

@@ -0,0 +1,119 @@
+use crate::elements::Document;
+use crate::format::chromium_pdf::result::{PdfRenderingError, PdfRenderingResult};
+use crate::format::html::html_writer::HTMLWriter;
+use crate::format::html::to_html::ToHtml;
+use crate::references::configuration::keys::INCLUDE_MATHJAX;
+use crate::utils::downloads::get_cached_path;
+use headless_chrome::protocol::page::PrintToPdfOptions;
+use headless_chrome::{Browser, LaunchOptionsBuilder, Tab};
+use std::error::Error;
+use std::fs::{File, OpenOptions};
+use std::io;
+use std::io::BufWriter;
+use std::path::PathBuf;
+use std::sync::{Arc, Mutex};
+use std::thread;
+use std::time::{Duration, Instant};
+
+pub mod result;
+
+/// Renders the document to pdf and returns the resulting bytes
+pub fn render_to_pdf(document: Document) -> PdfRenderingResult<Vec<u8>> {
+    let mut file_path = PathBuf::from("tmp-document.html");
+    file_path = get_cached_path(file_path).with_extension("html");
+    let mut mathjax = false;
+
+    if let Some(entry) = document.config.get_entry(INCLUDE_MATHJAX) {
+        if entry.get().as_bool() == Some(true) {
+            mathjax = true;
+        }
+    }
+
+    let handle = thread::spawn({
+        let file_path = file_path.clone();
+        move || {
+            log::debug!("Rendering html...");
+            let writer = BufWriter::new(
+                OpenOptions::new()
+                    .create(true)
+                    .write(true)
+                    .open(file_path)?,
+            );
+            let mut html_writer = HTMLWriter::new(Box::new(writer));
+            document.to_html(&mut html_writer);
+            log::debug!("Successfully rendered temporary html file!");
+            html_writer.flush()
+        }
+    });
+    log::debug!("Starting browser...");
+    let browser = Browser::new(LaunchOptionsBuilder::default().build().unwrap())?;
+    let tab = browser.wait_for_initial_tab()?;
+    handle.join().unwrap()?;
+    tab.navigate_to(format!("file:///{}", file_path.to_string_lossy()).as_str())?;
+    tab.wait_until_navigated()?;
+
+    if mathjax {
+        wait_for_mathjax(&tab, Duration::from_secs(60))?;
+    }
+    let result = tab.print_to_pdf(Some(get_pdf_options()))?;
+
+    Ok(result)
+}
+
+/// Waits for mathjax to be finished
+fn wait_for_mathjax(tab: &Tab, timeout: Duration) -> PdfRenderingResult<()> {
+    let start = Instant::now();
+    log::debug!("Waiting for mathjax...");
+    loop {
+        let result = tab
+            .evaluate(
+                "\
+            if (window.MathJax)\
+                !!window.MathJax;\
+            else \
+                false;\
+            ",
+                true,
+            )?
+            .value;
+        match result {
+            Some(value) => {
+                if value.is_boolean() && value.as_bool().unwrap() == true {
+                    break;
+                } else {
+                    if start.elapsed() >= timeout {
+                        return Err(PdfRenderingError::Timeout);
+                    }
+                    thread::sleep(Duration::from_millis(10))
+                }
+            }
+            None => {
+                if start.elapsed() >= timeout {
+                    return Err(PdfRenderingError::Timeout);
+                }
+                thread::sleep(Duration::from_millis(10))
+            }
+        }
+    }
+    Ok(())
+}
+
+fn get_pdf_options() -> PrintToPdfOptions {
+    PrintToPdfOptions {
+        landscape: None,
+        display_header_footer: Some(false),
+        print_background: Some(true),
+        scale: None,
+        paper_width: None,
+        paper_height: None,
+        margin_top: None,
+        margin_bottom: None,
+        margin_left: None,
+        margin_right: None,
+        page_ranges: None,
+        ignore_invalid_page_ranges: None,
+        header_template: None,
+        footer_template: None,
+        prefer_css_page_size: None,
+    }
+}

src/format/chromium_pdf/result.rs

@@ -0,0 +1,38 @@
+use serde::export::fmt::{self, Display};
+use std::error::Error;
+use std::io;
+
+pub type PdfRenderingResult<T> = Result<T, PdfRenderingError>;
+
+#[derive(Debug)]
+pub enum PdfRenderingError {
+    IoError(io::Error),
+    ChromiumError(failure::Error),
+    Timeout,
+    HtmlRenderingError,
+}
+
+impl Display for PdfRenderingError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            PdfRenderingError::IoError(e) => write!(f, "IO Error: {}", e),
+            PdfRenderingError::Timeout => write!(f, "Rendering timed out"),
+            PdfRenderingError::ChromiumError(e) => write!(f, "Chromium Error: {}", e),
+            PdfRenderingError::HtmlRenderingError => write!(f, "Failed to render html"),
+        }
+    }
+}
+
+impl Error for PdfRenderingError {}
+
+impl From<failure::Error> for PdfRenderingError {
+    fn from(other: failure::Error) -> Self {
+        Self::ChromiumError(other)
+    }
+}
+
+impl From<io::Error> for PdfRenderingError {
+    fn from(other: io::Error) -> Self {
+        Self::IoError(other)
+    }
+}

src/format/epub/assets/style.css

@@ -1,136 +0,0 @@
-body {
-    overflow-x: hidden;
-    color: #000;
-    word-break: break-word;
-}
-
-.content {
-    font-family: "Fira Sans", "Noto Sans", SansSerif, sans-serif;
-    margin: auto;
-    background-color: #FFF;
-}
-
-h1 {
-    font-size: 2.2rem;
-}
-
-h2 {
-    font-size: 1.8rem;
-}
-
-h3 {
-    font-size: 1.4rem;
-}
-
-h4 {
-    font-size: 1rem;
-}
-
-h5 {
-    font-size: 0.8rem;
-}
-
-h6 {
-    font-size: 0.4rem;
-}
-
-img {
-    max-width: 100%;
-    max-height: 100vh;
-    height: auto;
-}
-
-code {
-    color: #000;
-}
-
-code pre {
-    font-family: "Fira Code", "Mono", monospace;
-    padding: 0.8em 0.2em;
-    background-color: #EEE !important;
-    border-radius: 0.25em;
-}
-
-code.inlineCode {
-    font-family: "Fira Code", monospace;
-    border-radius: 0.1em;
-    background-color: #EEE;
-    padding: 0 0.1em
-}
-
-.tableWrapper {
-    overflow-x: auto;
-    width: 100%;
-}
-
-.tableWrapper > table {
-    margin: auto;
-}
-
-table {
-    border-collapse: collapse;
-}
-
-table tr:nth-child(odd) {
-    background-color: #DDD;
-}
-
-table tr:nth-child(1) {
-    background-color: white;
-    font-weight: bold;
-    border-bottom: 1px solid black;
-}
-
-table td, table th {
-    border-left: 1px solid black;
-    padding: 0.2em 0.5em
-}
-
-table tr td:first-child, table tr th:first-child {
-    border-left: none;
-}
-
-blockquote {
-    margin-left: 0;
-    background-color: rgba(0, 0, 0, 0);
-}
-
-.quote {
-    border-left: 0.3em solid gray;
-    border-radius: 0.2em;
-    padding-left: 1em;
-    margin-left: 0;
-    background-color: #EEE;
-}
-
-.quote .metadata {
-    font-style: italic;
-    padding-left: 0.5em;
-    color: #444
-}
-
-.figure {
-    width: 100%;
-    display: block;
-    text-align: center;
-}
-
-.figure .imageDescription {
-    display: block;
-    color: #444;
-    font-style: italic;
-}
-
-.centered {
-    text-align: center;
-}
-
-.glossaryReference {
-    text-decoration: none;
-    color: inherit;
-    border-bottom: 1px dotted #000;
-}
-
-.arrow {
-    font-family: "Fira Code", "Mono", monospace;
-}

src/format/epub/to_epub.rs

@@ -1,154 +0,0 @@
-use crate::elements::{
-    Block, Document, Element, Header, Inline, Line, List, ListItem, Paragraph, Section,
-};
-use crate::format::epub::epub_writer::EpubWriter;
-use std::io::Result;
-use std::mem;
-
-pub trait ToEpub {
-    fn to_epub(&self, writer: &mut EpubWriter) -> Result<()>;
-}
-
-impl ToEpub for Element {
-    fn to_epub(&self, writer: &mut EpubWriter) -> Result<()> {
-        match self {
-            Element::Inline(inline) => inline.to_epub(writer),
-            Element::Block(block) => block.to_epub(writer),
-            Element::Line(line) => line.to_epub(writer),
-        }
-    }
-}
-
-impl ToEpub for Block {
-    fn to_epub(&self, writer: &mut EpubWriter) -> Result<()> {
-        match self {
-            Block::Null => Ok(()),
-            Block::Section(s) => s.to_epub(writer),
-            Block::List(l) => l.to_epub(writer),
-            Block::Paragraph(p) => p.to_epub(writer),
-        }
-    }
-}
-
-impl ToEpub for Line {
-    fn to_epub(&self, writer: &mut EpubWriter) -> Result<()> {
-        unimplemented!()
-    }
-}
-
-impl ToEpub for Inline {
-    fn to_epub(&self, writer: &mut EpubWriter) -> Result<()> {
-        unimplemented!()
-    }
-}
-
-impl ToEpub for Document {
-    fn to_epub(&self, writer: &mut EpubWriter) -> Result<()> {
-        self.downloads.lock().unwrap().download_all();
-
-        let style = minify(std::include_str!("assets/style.css"));
-        writer.stylesheet(style)?;
-
-        for mut stylesheet in self.stylesheets {
-            let mut sheet = stylesheet.lock().unwrap();
-            let data = mem::take(&mut sheet.data);
-
-            if let Some(data) = data {
-                let sheet_data = String::from_utf8(data)?;
-                writer.stylesheet(&sheet_data);
-            }
-        }
-
-        Ok(())
-    }
-}
-
-impl ToEpub for Section {
-    fn to_epub(&self, writer: &mut EpubWriter) -> Result<()> {
-        writer.section(self.header.size, self.header.plain.clone())?;
-        writer.content("<!DOCTYPE html>".to_string());
-        writer.content("<html xmlns=\"http://www.w3.org/1999/xhtml\"><body>".to_string());
-        self.header.to_epub(writer)?;
-        for element in &self.elements {
-            element.to_epub(writer)?;
-        }
-        writer.content("</body></html>".to_string());
-
-        Ok(())
-    }
-}
-
-impl ToEpub for Header {
-    fn to_epub(&self, writer: &mut EpubWriter) -> Result<()> {
-        writer.content(format!("<h{} id=\"", self.size));
-        writer.escaped_attribute_content(self.anchor.clone());
-        writer.content("\">".to_string());
-        self.line.to_epub(writer);
-        writer.content("</h1>".to_string());
-
-        Ok(())
-    }
-}
-
-impl ToEpub for List {
-    fn to_epub(&self, writer: &mut EpubWriter) -> Result<()> {
-        if self.ordered {
-            writer.content("<ol>".to_string());
-            for item in self.items {
-                item.to_epub(writer);
-            }
-            writer.content("</ol>".to_string());
-        } else {
-            writer.content("<ul>".to_string());
-            for item in self.items {
-                item.to_epub(writer);
-            }
-            writer.content("</ul>".to_string());
-        }
-
-        Ok(())
-    }
-}
-
-impl ToEpub for ListItem {
-    fn to_epub(&self, writer: &mut EpubWriter) -> Result<()> {
-        writer.content("<li>".to_string());
-        self.text.to_epub(writer)?;
-
-        if let Some(first) = self.children.first() {
-            if first.ordered {
-                writer.content("<ol>".to_string());
-                for item in &self.children {
-                    item.to_epub(writer)?;
-                }
-                writer.content("</ol>".to_string());
-            } else {
-                writer.content("<ul>".to_string());
-                for item in &self.children {
-                    item.to_epub(writer)?;
-                }
-                writer.content("</ul>".to_string());
-            }
-        }
-        writer.content("</li>".to_string());
-
-        Ok(())
-    }
-}
-
-impl ToEpub for Paragraph {
-    fn to_epub(&self, writer: &mut EpubWriter) -> Result<()> {
-        writer.content("<div class=\"paragraph\"".to_string());
-        if let Some(first) = self.elements.first() {
-            first.to_epub(writer)?;
-        }
-        if self.elements.len() > 1 {
-            for element in &self.elements[1..] {
-                writer.content("<br/>".to_string());
-                element.to_epub(writer)?;
-            }
-        }
-
-        Ok(())
-    }
-}

src/format/html/assets/style.css

@@ -138,3 +138,12 @@ blockquote {
 .arrow {
     font-family: "Fira Code", "Mono", monospace;
 }
+
+@media print {
+    .content > section > section, .content > section > section {
+        page-break-inside: avoid;
+    }
+    body {
+        background-color: white !important;
+    }
+}

src/format/mod.rs

@@ -1,6 +1,7 @@
 use regex::Regex;
 use std::collections::HashMap;
 
+pub mod chromium_pdf;
 pub mod html;
 
 pub struct PlaceholderTemplate {

src/main.rs

@@ -2,12 +2,13 @@ use colored::Colorize;
 use env_logger::Env;
 use log::{Level, LevelFilter};
 use notify::{watcher, RecursiveMode, Watcher};
+use snekdown::format::chromium_pdf::render_to_pdf;
 use snekdown::format::html::html_writer::HTMLWriter;
 use snekdown::format::html::to_html::ToHtml;
 use snekdown::parser::ParserOptions;
 use snekdown::Parser;
 use std::fs::OpenOptions;
-use std::io::BufWriter;
+use std::io::{BufWriter, Write};
 use std::path::PathBuf;
 use std::sync::mpsc::channel;
 use std::time::{Duration, Instant};
@@ -114,6 +115,7 @@ fn watch(opt: &Opt) {
 /// Renders the document to the output path
 fn render(opt: &Opt) -> Parser {
     let start = Instant::now();
+
     let mut parser = Parser::with_defaults(
         ParserOptions::default()
             .add_path(opt.input.clone())
@@ -123,6 +125,7 @@ fn render(opt: &Opt) -> Parser {
 
     log::info!("Parsing took:     {:?}", start.elapsed());
     let start_render = Instant::now();
+
     let file = OpenOptions::new()
         .read(true)
         .write(true)
@@ -130,13 +133,19 @@ fn render(opt: &Opt) -> Parser {
         .create(true)
         .open(&opt.output)
         .unwrap();
-    let writer = BufWriter::new(file);
+    let mut writer = BufWriter::new(file);
+
     match opt.format.as_str() {
         "html" => {
             let mut writer = HTMLWriter::new(Box::new(writer));
             document.to_html(&mut writer).unwrap();
             writer.flush().unwrap();
         }
+        "pdf" => {
+            let result = render_to_pdf(document).expect("Failed to render pdf!");
+            writer.write_all(&result).unwrap();
+            writer.flush().unwrap();
+        }
         _ => log::error!("Unknown format {}", opt.format),
     }
     log::info!("Rendering took:   {:?}", start_render.elapsed());

src/utils/downloads.rs

@@ -129,7 +129,7 @@ impl PendingDownload {
     }
 }
 
-fn get_cached_path(path: PathBuf) -> PathBuf {
+pub fn get_cached_path(path: PathBuf) -> PathBuf {
     lazy_static::lazy_static! {
         static ref APP_DIRS: AppDirs = AppDirs::new(Some("snekdown"), AppUI::CommandLine).unwrap();
     }