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Emit stylesheet-added/removed from ThemeManager w/ CSSStyleSheet objects

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This enables subscribers to detect not just that stylesheets have
changed, but specifically how they have changed. This is used by the
React editor component to only refresh scrollbars when a stylesheet
that actually contains selectors for scrollbar elements is added or
removed.
This commit is contained in:
Nathan Sobo
2014-05-05 18:54:22 -06:00
parent ca7f11f7d0
commit 76b9982e04
2 changed files with 48 additions and 13 deletions
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24
src/theme-manager.coffee
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@@ -158,10 +158,10 @@ class ThemeManager
# load path.
#
# Returns the absolute path to the required stylesheet.
requireStylesheet: (stylesheetPath, ttype = 'bundled', htmlElement) ->
requireStylesheet: (stylesheetPath, type = 'bundled', htmlElement) ->
if fullPath = @resolveStylesheet(stylesheetPath)
content = @loadStylesheet(fullPath)
@applyStylesheet(fullPath, content, ttype = 'bundled', htmlElement)
@applyStylesheet(fullPath, content, type = 'bundled', htmlElement)
else
throw new Error("Could not find a file at path '#{stylesheetPath}'")
@@ -192,16 +192,24 @@ class ThemeManager
removeStylesheet: (stylesheetPath) ->
fullPath = @resolveStylesheet(stylesheetPath) ? stylesheetPath
@stylesheetElementForId(@stringToId(fullPath)).remove()
@emit 'stylesheets-changed'
element = @stylesheetElementForId(@stringToId(fullPath))
if element.length > 0
stylesheet = element[0].sheet
element.remove()
@emit 'stylesheet-removed', stylesheet
@emit 'stylesheets-changed'
applyStylesheet: (path, text, ttype = 'bundled', htmlElement=$('html')) ->
applyStylesheet: (path, text, type = 'bundled', htmlElement=$('html')) ->
styleElement = @stylesheetElementForId(@stringToId(path), htmlElement)
if styleElement.length
@emit 'stylesheet-removed', styleElement[0].sheet
styleElement.text(text)
else
if htmlElement.find("head style.#{ttype}").length
htmlElement.find("head style.#{ttype}:last").after "<style class='#{ttype}' id='#{@stringToId(path)}'>#{text}</style>"
styleElement = $("<style class='#{type}' id='#{@stringToId(path)}'>#{text}</style>")
if htmlElement.find("head style.#{type}").length
htmlElement.find("head style.#{type}:last").after(styleElement)
else
htmlElement.find("head").append "<style class='#{ttype}' id='#{@stringToId(path)}'>#{text}</style>"
htmlElement.find("head").append(styleElement)
@emit 'stylesheet-added', styleElement[0].sheet
@emit 'stylesheets-changed'