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function! Pl#Colorscheme#Init(hi) " {{{
let colorscheme = {}
for hi in a:hi
" Ensure that the segments are a list
let segments = type(hi[0]) == type('') ? [ hi[0] ] : hi[0]
let mode_hi_dict = hi[1]
for segment in segments
let colorscheme[segment] = mode_hi_dict
endfor
endfor
return colorscheme
endfunction " }}}
function! Pl#Colorscheme#Apply(colorscheme, buffer_segments) " {{{
" Set color parameters for all segments in a:buffer_segments
" TODO This function should be recursive and work on both segments and groups
" TODO We could probably handle the NS stuff here...
try
let colorscheme = g:Powerline#Colorschemes#{a:colorscheme}#colorscheme
catch
echom 'Color scheme "'. a:colorscheme .'" doesn''t exist!'
return
endtry
let buffer_segments = a:buffer_segments
" This is a bit complex, I'll walk you through exactly what happens here...
"
" First of all we loop through the buffer_segments, which are the segments that
" this specific buffer will have.
for buffer_segment in buffer_segments
" The buffer_segment consists of a 'matches' list and a 'segments' list.
" The 'matches' list has conditions to limit this statusline to specific buffers/windows.
" The 'segments' list has each segment and segment group for this buffer
for segment in buffer_segment.segments
let type = get(segment, 'type', '')
if type == 'segment_group'
" We're going to handle segment groups different from single segments. Segment groups
" have child segments which may have their own highlighting (e.g. fileinfo.flags),
" and these child segments may be grouped (e.g. fileinfo.flags.ro) to provide very
" specific highlighting. So here we'll handle all that:
" Set the default/fallback colors for this group
for i in range(len(segment.variants), 0, -1)
" Check for available highlighting for the main group segment
"
" This works like the segment highlighting below
" TODO Create a function for this
let seg_variants = join(segment.variants[0:i], '.')
let seg_name = i > 0 ? segment.name .'.'. seg_variants : segment.name
let seg_ns_name = len(segment.ns) > 0 ? segment.ns .':'. seg_name : seg_name
if has_key(colorscheme, seg_ns_name)
" We have a namespaced highlight group
let segment.colors = colorscheme[seg_ns_name]
break
elseif has_key(colorscheme, seg_name)
" We have a non-namespaced group
let segment.colors = colorscheme[seg_name]
break
endif
endfor
" The reason why we need to deepcopy the group's segments is that the child segments
" all point to the same base segments and that screws up highlighting if we highlight
" some child segments with different namespaced colors
let segment.segments = deepcopy(segment.segments)
" Apply colors to each child segment
for child_segment in segment.segments
" Check if this child segment is grouped (e.g. fileinfo.flags.group.subgroup)
" We're going to prioritize the most specific grouping and then work back to the
" most common group (e.g. fileinfo.flags)
" FIXME We don't have the variants from before because group children aren't run through Pl#Segment#Get
let child_segment.variants = [seg_name] + split(child_segment.name, '\.')
" Use the parent group's namespace
let child_segment.ns = segment.ns
for i in range(len(child_segment.variants), 0, -1)
" Check for available highlighting for the main group segment
let child_seg_name = join(child_segment.variants[0:i], '.')
let child_seg_ns_name = len(child_segment.ns) > 0 ? child_segment.ns .':'. child_seg_name : child_seg_name
if has_key(colorscheme, child_seg_ns_name)
" We have a namespaced highlight group
let child_segment.colors = colorscheme[child_seg_ns_name]
break
elseif has_key(colorscheme, child_seg_name)
" We have a non-namespaced group
let child_segment.colors = colorscheme[child_seg_name]
break
endif
endfor
endfor
elseif type == 'segment'
for i in range(len(segment.variants), 0, -1)
" Check for available highlighting
"
" This is done in the following manner, using the segment gundo:static_filename.text.buffer as an example:
"
" * Look for the hl group: gundo:static_filename.text.buffer
" * Look for the hl group: static_filename.text.buffer
" * Look for the hl group: gundo:static_filename.text
" * Look for the hl group: static_filename.text
" * Look for the hl group: gundo:static_filename
" * Look for the hl group: static_filename
" * Return the segment without highlighting, causing an error in the parser
let seg_variants = join(segment.variants[0:i], '.')
let seg_name = i > 0 ? segment.name .'.'. seg_variants : segment.name
let seg_ns_name = len(segment.ns) > 0 ? segment.ns .':'. seg_name : seg_name
if has_key(colorscheme, seg_ns_name)
" We have a namespaced highlight group
let segment.colors = colorscheme[seg_ns_name]
break
elseif has_key(colorscheme, seg_name)
" We have a non-namespaced group
let segment.colors = colorscheme[seg_name]
break
endif
endfor
endif
unlet! segment
endfor
endfor
" Good luck parsing this return value
"
" It's a huge dict with all segments for all buffers with their respective syntax highlighting.
" It will be parsed by the main Powerline code, where all the data will be shortened to a simple
" array consiting of a statusline for each mode, with generated highlighting groups and dividers.
return buffer_segments
endfunction " }}}
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