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Auto merge of #12442 - shinglyu:stylo-page-break, r=emilio

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Implemented page-break-before/after for Stylo

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- [ ] These changes fix #__ (github issue number if applicable).

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This commit is contained in:
bors-servo 2016-07-14 22:47:31 -07:00 • committed by GitHub
commit 6bb5d0e846
1 changed files with 40 additions and 3 deletions
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43
ports/geckolib/properties.mako.rs
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@ -432,8 +432,6 @@ impl Debug for ${style_struct.gecko_struct_name} {
force_stub += ["font-kerning", "font-stretch", "font-variant"]
# These have unusual representations in gecko.
force_stub += ["list-style-type", "text-overflow"]
# These are booleans.
force_stub += ["page-break-after", "page-break-before"]
# In a nsTArray, have to be done manually, but probably not too much work
# (the "filling them", not the "making them work")
force_stub += ["animation-name", "animation-duration",
@ -755,7 +753,9 @@ fn static_assert() {
</%self:impl_trait>
<%self:impl_trait style_struct_name="Box" skip_longhands="display overflow-y vertical-align -moz-binding">
<% skip_box_longhands= """display overflow-y vertical-align
-moz-binding page-break-before page-break-after""" %>
<%self:impl_trait style_struct_name="Box" skip_longhands="${skip_box_longhands}">
// We manually-implement the |display| property until we get general
// infrastructure for preffing certain values.
@ -844,6 +844,43 @@ fn static_assert() {
fn copy__moz_binding_from(&mut self, other: &Self) {
unsafe { Gecko_CopyMozBindingFrom(&mut self.gecko, &other.gecko); }
}
// Temp fix for Bugzilla bug 24000.
// Map 'auto' and 'avoid' to false, and 'always', 'left', and 'right' to true.
// "A conforming user agent may interpret the values 'left' and 'right'
// as 'always'." - CSS2.1, section 13.3.1
fn set_page_break_before(&mut self, v: longhands::page_break_before::computed_value::T) {
use style::computed_values::page_break_before::T;
let result = match v {
T::auto => false,
T::always => true,
T::avoid => false,
T::left => true,
T::right => true
};
// TODO(shinglyu): Rename Gecko's struct to mPageBreakBefore
self.gecko.mBreakBefore = result;
}
${impl_simple_copy('page_break_before', 'mBreakBefore')}
// Temp fix for Bugzilla bug 24000.
// See set_page_break_before for detail.
fn set_page_break_after(&mut self, v: longhands::page_break_after::computed_value::T) {
use style::computed_values::page_break_after::T;
let result = match v {
T::auto => false,
T::always => true,
T::avoid => false,
T::left => true,
T::right => true
};
// TODO(shinglyu): Rename Gecko's struct to mPageBreakBefore
self.gecko.mBreakBefore = result;
}
${impl_simple_copy('page_break_after', 'mBreakAfter')}
</%self:impl_trait>
// TODO: Gecko accepts lists in most background-related properties. We just use