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servo: Merge #16686 - stylo: Parse eSafeAgentSheetFeatures as agent sheet (from aethanyc:bug1321754); r=heycam
This was reviewed in https://bugzilla.mozilla.org/show_bug.cgi?id=1321754 Source-Repo: https://github.com/servo/servo Source-Revision: f284a15e4b442b1beff90b88e9ba6952255f394a --HG-- extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear extra : subtree_revision : 23e9ebebd33b9cf62cfe4f65b6ae9960ff171b95
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@ -5293,18 +5293,28 @@ pub mod root {
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* exposure on the public Web, but are very useful for expressing
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* user style overrides, such as @-moz-document rules.
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*
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* XXX: eUserSheetFeatures was added in bug 1035091, but some patches in
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* that bug never landed to use this enum value. Currently, all the features
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* in user sheet are also available in author sheet.
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*
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* Agent sheets have access to all author- and user-sheet features
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* plus more extensions that are necessary for internal use but,
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* again, not yet suitable for exposure on the public Web. Some of
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* these are outright unsafe to expose; in particular, incorrect
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* styling of anonymous box pseudo-elements can violate layout
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* invariants.
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*
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* Agent sheets that do not use any unsafe rules could use
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* eSafeAgentSheetFeatures when creating the sheet. This enum value allows
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* Servo backend to recognize the sheets as the agent level, but Gecko
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* backend will parse it under _author_ level.
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*/
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#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
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pub enum SheetParsingMode {
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eAuthorSheetFeatures = 0,
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eUserSheetFeatures = 1,
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eAgentSheetFeatures = 2,
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eSafeAgentSheetFeatures = 3,
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}
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#[repr(C)]
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#[derive(Debug, Copy, Clone)]
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@ -5222,18 +5222,28 @@ pub mod root {
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* exposure on the public Web, but are very useful for expressing
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* user style overrides, such as @-moz-document rules.
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*
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* XXX: eUserSheetFeatures was added in bug 1035091, but some patches in
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* that bug never landed to use this enum value. Currently, all the features
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* in user sheet are also available in author sheet.
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*
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* Agent sheets have access to all author- and user-sheet features
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* plus more extensions that are necessary for internal use but,
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* again, not yet suitable for exposure on the public Web. Some of
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* these are outright unsafe to expose; in particular, incorrect
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* styling of anonymous box pseudo-elements can violate layout
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* invariants.
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*
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* Agent sheets that do not use any unsafe rules could use
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* eSafeAgentSheetFeatures when creating the sheet. This enum value allows
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* Servo backend to recognize the sheets as the agent level, but Gecko
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* backend will parse it under _author_ level.
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*/
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#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
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pub enum SheetParsingMode {
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eAuthorSheetFeatures = 0,
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eUserSheetFeatures = 1,
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eAgentSheetFeatures = 2,
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eSafeAgentSheetFeatures = 3,
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}
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#[repr(C)]
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#[derive(Debug, Copy, Clone)]
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@ -509,6 +509,7 @@ pub extern "C" fn Servo_StyleSheet_Empty(mode: SheetParsingMode) -> RawServoStyl
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SheetParsingMode::eAuthorSheetFeatures => Origin::Author,
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SheetParsingMode::eUserSheetFeatures => Origin::User,
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SheetParsingMode::eAgentSheetFeatures => Origin::UserAgent,
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SheetParsingMode::eSafeAgentSheetFeatures => Origin::UserAgent,
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};
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let shared_lock = global_style_data.shared_lock.clone();
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Arc::new(Stylesheet::from_str(
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@ -533,6 +534,7 @@ pub extern "C" fn Servo_StyleSheet_FromUTF8Bytes(loader: *mut Loader,
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SheetParsingMode::eAuthorSheetFeatures => Origin::Author,
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SheetParsingMode::eUserSheetFeatures => Origin::User,
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SheetParsingMode::eAgentSheetFeatures => Origin::UserAgent,
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SheetParsingMode::eSafeAgentSheetFeatures => Origin::UserAgent,
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};
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let url_data = unsafe { RefPtr::from_ptr_ref(&extra_data) };
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