mirror of
https://github.com/servo/servo.git
synced 2025-06-06 16:45:39 +00:00
Support the <meter> element (#35524)
* Allow attaching UA shadow roots to any element Signed-off-by: Simon Wülker <simon.wuelker@arcor.de> * Implement a UA shadow tree for the <meter> element Signed-off-by: Simon Wülker <simon.wuelker@arcor.de> * Add UA styles for the meter element Signed-off-by: Simon Wülker <simon.wuelker@arcor.de> * Include spec text when computing meter state Signed-off-by: Simon Wülker <simon.wuelker@arcor.de> --------- Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
This commit is contained in:
Simon Wülker
GitHub
parent
6ccdf7d19f
commit
085cd981aa
6 changed files with 207 additions and 27 deletions
40
Cargo.lock
generated
40
Cargo.lock
generated
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@ -1017,7 +1017,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "117725a109d387c937a1533ce01b450cbde6b88abceea8473c4d7a85853cda3c"
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dependencies = [
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"lazy_static",
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"windows-sys 0.59.0",
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"windows-sys 0.48.0",
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]
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[[package]]
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@ -1686,7 +1686,7 @@ dependencies = [
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[[package]]
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name = "dom"
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version = "0.0.1"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#1977193ab231d89cf0f87ccc23c05e4ff67ee3fd"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#7eaabe1687ea6afa84c6d7d6b8c1b3466aa56a36"
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dependencies = [
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"bitflags 2.8.0",
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"malloc_size_of",
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@ -1967,7 +1967,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "33d852cb9b869c2a9b3df2f71a3074817f01e1844f839a144f5fcef059a4eb5d"
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dependencies = [
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"libc",
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"windows-sys 0.59.0",
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"windows-sys 0.52.0",
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]
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[[package]]
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@ -2493,7 +2493,7 @@ dependencies = [
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"gobject-sys",
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"libc",
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"system-deps",
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"windows-sys 0.59.0",
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"windows-sys 0.52.0",
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]
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[[package]]
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@ -3955,7 +3955,7 @@ checksum = "e19b23d53f35ce9f56aebc7d1bb4e6ac1e9c0db7ac85c8d1760c04379edced37"
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dependencies = [
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"hermit-abi 0.4.0",
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"libc",
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"windows-sys 0.59.0",
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"windows-sys 0.52.0",
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]
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[[package]]
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@ -4299,7 +4299,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "fc2f4eb4bc735547cfed7c0a4922cbd04a4655978c09b54f1f7b228750664c34"
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dependencies = [
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"cfg-if",
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"windows-targets 0.52.6",
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"windows-targets 0.48.5",
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]
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[[package]]
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@ -4477,7 +4477,7 @@ dependencies = [
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[[package]]
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name = "malloc_size_of"
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version = "0.0.1"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#1977193ab231d89cf0f87ccc23c05e4ff67ee3fd"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#7eaabe1687ea6afa84c6d7d6b8c1b3466aa56a36"
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dependencies = [
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"app_units",
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"cssparser",
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@ -6172,7 +6172,7 @@ dependencies = [
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"errno",
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"libc",
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"linux-raw-sys",
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"windows-sys 0.59.0",
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"windows-sys 0.52.0",
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]
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[[package]]
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@ -6481,7 +6481,7 @@ dependencies = [
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[[package]]
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name = "selectors"
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version = "0.26.0"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#1977193ab231d89cf0f87ccc23c05e4ff67ee3fd"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#7eaabe1687ea6afa84c6d7d6b8c1b3466aa56a36"
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dependencies = [
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"bitflags 2.8.0",
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"cssparser",
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@ -6766,7 +6766,7 @@ dependencies = [
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[[package]]
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name = "servo_arc"
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version = "0.4.0"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#1977193ab231d89cf0f87ccc23c05e4ff67ee3fd"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#7eaabe1687ea6afa84c6d7d6b8c1b3466aa56a36"
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dependencies = [
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"serde",
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"stable_deref_trait",
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@ -6775,7 +6775,7 @@ dependencies = [
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[[package]]
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name = "servo_atoms"
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version = "0.0.1"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#1977193ab231d89cf0f87ccc23c05e4ff67ee3fd"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#7eaabe1687ea6afa84c6d7d6b8c1b3466aa56a36"
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dependencies = [
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"string_cache",
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"string_cache_codegen",
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@ -7133,7 +7133,7 @@ checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
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[[package]]
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name = "static_prefs"
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version = "0.1.0"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#1977193ab231d89cf0f87ccc23c05e4ff67ee3fd"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#7eaabe1687ea6afa84c6d7d6b8c1b3466aa56a36"
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[[package]]
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name = "strck"
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@ -7213,7 +7213,7 @@ dependencies = [
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[[package]]
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name = "style"
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version = "0.0.1"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#1977193ab231d89cf0f87ccc23c05e4ff67ee3fd"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#7eaabe1687ea6afa84c6d7d6b8c1b3466aa56a36"
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dependencies = [
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"app_units",
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"arrayvec",
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@ -7271,7 +7271,7 @@ dependencies = [
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[[package]]
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name = "style_config"
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version = "0.0.1"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#1977193ab231d89cf0f87ccc23c05e4ff67ee3fd"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#7eaabe1687ea6afa84c6d7d6b8c1b3466aa56a36"
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dependencies = [
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"lazy_static",
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]
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@ -7279,7 +7279,7 @@ dependencies = [
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[[package]]
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name = "style_derive"
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version = "0.0.1"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#1977193ab231d89cf0f87ccc23c05e4ff67ee3fd"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#7eaabe1687ea6afa84c6d7d6b8c1b3466aa56a36"
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dependencies = [
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"darling",
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"proc-macro2",
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@ -7309,7 +7309,7 @@ dependencies = [
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[[package]]
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name = "style_traits"
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version = "0.0.1"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#1977193ab231d89cf0f87ccc23c05e4ff67ee3fd"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#7eaabe1687ea6afa84c6d7d6b8c1b3466aa56a36"
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dependencies = [
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"app_units",
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"bitflags 2.8.0",
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@ -7474,7 +7474,7 @@ dependencies = [
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"getrandom",
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"once_cell",
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"rustix",
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"windows-sys 0.59.0",
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"windows-sys 0.52.0",
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]
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[[package]]
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@ -7703,7 +7703,7 @@ dependencies = [
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[[package]]
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name = "to_shmem"
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version = "0.1.0"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#1977193ab231d89cf0f87ccc23c05e4ff67ee3fd"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#7eaabe1687ea6afa84c6d7d6b8c1b3466aa56a36"
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dependencies = [
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"cssparser",
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"servo_arc",
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@ -7716,7 +7716,7 @@ dependencies = [
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[[package]]
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name = "to_shmem_derive"
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version = "0.1.0"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#1977193ab231d89cf0f87ccc23c05e4ff67ee3fd"
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source = "git+https://github.com/servo/stylo?branch=2025-02-03#7eaabe1687ea6afa84c6d7d6b8c1b3466aa56a36"
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dependencies = [
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"darling",
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"proc-macro2",
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@ -8763,7 +8763,7 @@ version = "0.1.9"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "cf221c93e13a30d793f7645a0e7762c55d169dbb0a49671918a2319d289b10bb"
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dependencies = [
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"windows-sys 0.59.0",
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"windows-sys 0.48.0",
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]
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[[package]]
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@ -526,10 +526,9 @@ impl Element {
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// If element’s local name is not a valid shadow host name,
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// then throw a "NotSupportedError" DOMException.
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if !is_valid_shadow_host_name(self.local_name()) {
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match self.local_name() {
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&local_name!("video") | &local_name!("audio")
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if is_ua_widget == IsUserAgentWidget::Yes => {},
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_ => return Err(Error::NotSupported),
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// UA shadow roots may be attached to anything
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if is_ua_widget != IsUserAgentWidget::Yes {
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return Err(Error::NotSupported);
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}
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}
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@ -3975,6 +3974,9 @@ impl SelectorsElement for DomRoot<Element> {
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NonTSPseudoClass::Indeterminate |
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NonTSPseudoClass::Invalid |
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NonTSPseudoClass::Modal |
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NonTSPseudoClass::MozMeterOptimum |
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NonTSPseudoClass::MozMeterSubOptimum |
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NonTSPseudoClass::MozMeterSubSubOptimum |
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NonTSPseudoClass::Optional |
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NonTSPseudoClass::OutOfRange |
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NonTSPseudoClass::PlaceholderShown |
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@ -2,28 +2,47 @@
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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use std::cell::Ref;
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use std::ops::{Add, Div};
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use dom_struct::dom_struct;
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use html5ever::{local_name, LocalName, Prefix};
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use js::rust::HandleObject;
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use style_dom::ElementState;
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use crate::dom::attr::Attr;
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use crate::dom::bindings::cell::DomRefCell;
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use crate::dom::bindings::codegen::Bindings::HTMLMeterElementBinding::HTMLMeterElementMethods;
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use crate::dom::bindings::codegen::Bindings::NodeBinding::Node_Binding::NodeMethods;
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use crate::dom::bindings::codegen::Bindings::ShadowRootBinding::{
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ShadowRootMode, SlotAssignmentMode,
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};
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use crate::dom::bindings::inheritance::Castable;
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use crate::dom::bindings::num::Finite;
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use crate::dom::bindings::root::{DomRoot, MutNullableDom};
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use crate::dom::bindings::root::{Dom, DomRoot, MutNullableDom};
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use crate::dom::bindings::str::DOMString;
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use crate::dom::document::Document;
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use crate::dom::element::Element;
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use crate::dom::element::{AttributeMutation, Element};
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use crate::dom::htmldivelement::HTMLDivElement;
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use crate::dom::htmlelement::HTMLElement;
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use crate::dom::node::Node;
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use crate::dom::node::{BindContext, ChildrenMutation, Node, NodeTraits};
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use crate::dom::nodelist::NodeList;
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use crate::dom::shadowroot::IsUserAgentWidget;
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use crate::dom::virtualmethods::VirtualMethods;
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use crate::script_runtime::CanGc;
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#[dom_struct]
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pub(crate) struct HTMLMeterElement {
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htmlelement: HTMLElement,
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labels_node_list: MutNullableDom<NodeList>,
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shadow_tree: DomRefCell<Option<ShadowTree>>,
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}
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/// Holds handles to all slots in the UA shadow tree
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#[derive(Clone, JSTraceable, MallocSizeOf)]
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#[cfg_attr(crown, crown::unrooted_must_root_lint::must_root)]
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struct ShadowTree {
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meter_value: Dom<HTMLDivElement>,
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}
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/// <https://html.spec.whatwg.org/multipage/#the-meter-element>
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@ -36,6 +55,7 @@ impl HTMLMeterElement {
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HTMLMeterElement {
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htmlelement: HTMLElement::new_inherited(local_name, prefix, document),
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labels_node_list: MutNullableDom::new(None),
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shadow_tree: Default::default(),
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}
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}
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@ -56,6 +76,98 @@ impl HTMLMeterElement {
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can_gc,
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)
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}
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fn create_shadow_tree(&self, can_gc: CanGc) {
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let document = self.owner_document();
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let root = self
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.upcast::<Element>()
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.attach_shadow(
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IsUserAgentWidget::Yes,
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ShadowRootMode::Closed,
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false,
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SlotAssignmentMode::Manual,
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)
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.expect("Attaching UA shadow root failed");
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let meter_value = HTMLDivElement::new(local_name!("div"), None, &document, None, can_gc);
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root.upcast::<Node>()
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.AppendChild(meter_value.upcast::<Node>())
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.unwrap();
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let _ = self.shadow_tree.borrow_mut().insert(ShadowTree {
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meter_value: meter_value.as_traced(),
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});
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self.upcast::<Node>()
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.dirty(crate::dom::node::NodeDamage::OtherNodeDamage);
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}
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fn shadow_tree(&self, can_gc: CanGc) -> Ref<'_, ShadowTree> {
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if !self.upcast::<Element>().is_shadow_host() {
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self.create_shadow_tree(can_gc);
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}
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Ref::filter_map(self.shadow_tree.borrow(), Option::as_ref)
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.ok()
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.expect("UA shadow tree was not created")
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}
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fn update_state(&self, can_gc: CanGc) {
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let value = *self.Value();
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let low = *self.Low();
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let high = *self.High();
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let min = *self.Min();
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let max = *self.Max();
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let optimum = *self.Optimum();
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// If the optimum point is less than the low boundary, then the region between the minimum value and
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// the low boundary must be treated as the optimum region, the region from the low boundary up to the
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// high boundary must be treated as a suboptimal region, and the remaining region must be treated as
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// an even less good region
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let element_state = if optimum < low {
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if value < low {
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ElementState::OPTIMUM
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} else if value <= high {
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ElementState::SUB_OPTIMUM
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} else {
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ElementState::SUB_SUB_OPTIMUM
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}
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}
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// If the optimum point is higher than the high boundary, then the situation is reversed; the region between
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// the high boundary and the maximum value must be treated as the optimum region, the region from the high
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// boundary down to the low boundary must be treated as a suboptimal region, and the remaining region must
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// be treated as an even less good region.
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else if optimum > high {
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if value > high {
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ElementState::OPTIMUM
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} else if value >= low {
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ElementState::SUB_OPTIMUM
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} else {
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ElementState::SUB_SUB_OPTIMUM
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}
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}
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// If the optimum point is equal to the low boundary or the high boundary, or anywhere in between them,
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// then the region between the low and high boundaries of the gauge must be treated as the optimum region,
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// and the low and high parts, if any, must be treated as suboptimal.
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else if (low..=high).contains(&value) {
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ElementState::OPTIMUM
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} else {
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ElementState::SUB_OPTIMUM
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};
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// Set the correct pseudo class
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self.upcast::<Element>()
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.set_state(ElementState::METER_OPTIMUM_STATES, false);
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self.upcast::<Element>().set_state(element_state, true);
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// Update the visual width of the meter
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let shadow_tree = self.shadow_tree(can_gc);
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let position = (value - min) / (max - min) * 100.0;
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let style = format!("width: {position}%");
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shadow_tree
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.meter_value
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.upcast::<Element>()
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.set_string_attribute(&local_name!("style"), style.into(), can_gc);
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}
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}
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impl HTMLMeterElementMethods<crate::DomTypeHolder> for HTMLMeterElement {
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@ -210,3 +322,38 @@ impl HTMLMeterElementMethods<crate::DomTypeHolder> for HTMLMeterElement {
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);
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}
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}
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impl VirtualMethods for HTMLMeterElement {
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fn super_type(&self) -> Option<&dyn VirtualMethods> {
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Some(self.upcast::<HTMLElement>() as &dyn VirtualMethods)
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}
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|
||||
fn attribute_mutated(&self, attr: &Attr, mutation: AttributeMutation) {
|
||||
self.super_type().unwrap().attribute_mutated(attr, mutation);
|
||||
|
||||
let is_important_attribute = matches!(
|
||||
attr.local_name(),
|
||||
&local_name!("high") |
|
||||
&local_name!("low") |
|
||||
&local_name!("min") |
|
||||
&local_name!("max") |
|
||||
&local_name!("optimum") |
|
||||
&local_name!("value")
|
||||
);
|
||||
if is_important_attribute {
|
||||
self.update_state(CanGc::note());
|
||||
}
|
||||
}
|
||||
|
||||
fn children_changed(&self, mutation: &ChildrenMutation) {
|
||||
self.super_type().unwrap().children_changed(mutation);
|
||||
|
||||
self.update_state(CanGc::note());
|
||||
}
|
||||
|
||||
fn bind_to_tree(&self, context: &BindContext) {
|
||||
self.super_type().unwrap().bind_to_tree(context);
|
||||
|
||||
self.update_state(CanGc::note());
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -36,6 +36,7 @@ use crate::dom::htmllielement::HTMLLIElement;
|
|||
use crate::dom::htmllinkelement::HTMLLinkElement;
|
||||
use crate::dom::htmlmediaelement::HTMLMediaElement;
|
||||
use crate::dom::htmlmetaelement::HTMLMetaElement;
|
||||
use crate::dom::htmlmeterelement::HTMLMeterElement;
|
||||
use crate::dom::htmlobjectelement::HTMLObjectElement;
|
||||
use crate::dom::htmloptgroupelement::HTMLOptGroupElement;
|
||||
use crate::dom::htmloptionelement::HTMLOptionElement;
|
||||
|
|
@ -234,6 +235,9 @@ pub(crate) fn vtable_for(node: &Node) -> &dyn VirtualMethods {
|
|||
NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLMetaElement)) => {
|
||||
node.downcast::<HTMLMetaElement>().unwrap() as &dyn VirtualMethods
|
||||
},
|
||||
NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLMeterElement)) => {
|
||||
node.downcast::<HTMLMeterElement>().unwrap() as &dyn VirtualMethods
|
||||
},
|
||||
NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLObjectElement)) => {
|
||||
node.downcast::<HTMLObjectElement>().unwrap() as &dyn VirtualMethods
|
||||
},
|
||||
|
|
|
|||
|
|
@ -681,6 +681,9 @@ impl<'dom> ::selectors::Element for ServoLayoutElement<'dom> {
|
|||
NonTSPseudoClass::Indeterminate |
|
||||
NonTSPseudoClass::Invalid |
|
||||
NonTSPseudoClass::Modal |
|
||||
NonTSPseudoClass::MozMeterOptimum |
|
||||
NonTSPseudoClass::MozMeterSubOptimum |
|
||||
NonTSPseudoClass::MozMeterSubSubOptimum |
|
||||
NonTSPseudoClass::Optional |
|
||||
NonTSPseudoClass::OutOfRange |
|
||||
NonTSPseudoClass::PlaceholderShown |
|
||||
|
|
|
|||
|
|
@ -304,3 +304,27 @@ svg > * {
|
|||
padding: 0;
|
||||
margin: 0;
|
||||
}
|
||||
|
||||
meter {
|
||||
display: inline-block;
|
||||
width: 100px;
|
||||
height: 12px;
|
||||
border-radius: 6px;
|
||||
background: linear-gradient(#e6e6e6, #e6e6e6, #eeeeee 20%, #cccccc 45%, #cccccc 55%);
|
||||
overflow: clip;
|
||||
}
|
||||
|
||||
/* FIXME: These should use the ::-moz-meter-bar pseudo element */
|
||||
meter div {
|
||||
height: 100%;
|
||||
}
|
||||
|
||||
meter:-moz-meter-optimum div {
|
||||
background: linear-gradient(#ad7, #ad7, #cea 20%, #7a3 45%, #7a3 55%);
|
||||
}
|
||||
meter:-moz-meter-sub-optimum div {
|
||||
background: linear-gradient(#fe7, #fe7, #ffc 20%, #db3 45%, #db3 55%);
|
||||
}
|
||||
meter:-moz-meter-sub-sub-optimum div {
|
||||
background: linear-gradient(#f77, #f77, #fcc 20%, #d44 45%, #d44 55%);
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue