Set favicon to the icon of the currently shown docs

Jasper van Merle committed 7 years ago

Commit c36478c1 parent d640a8e5 files · +58 −25Browse files

Unified · Split

5 files

@@ -0,0 +1,53 @@
	1	+defaultUrl = null
	2	+currentSlug = null
	3	+
	4	+imageCache = {}
	5	+urlCache = {}
	6	+
	7	+withImage = (url, action) ->
	8	+ if imageCache[url]
	9	+ action(imageCache[url])
	10	+ else
	11	+ img = new Image()
	12	+ img.src = url
	13	+ img.onload = () =>
	14	+ imageCache[url] = img
	15	+ action(img)
	16	+
	17	+@setFaviconForDoc = (doc) ->
	18	+ return if currentSlug == doc.slug
	19	+
	20	+ favicon = $('link[rel="icon"]')
	21	+
	22	+ if urlCache[doc.slug]
	23	+ favicon.href = urlCache[doc.slug]
	24	+ currentSlug = doc.slug
	25	+ return
	26	+
	27	+ styles = window.getComputedStyle($("._icon-#{doc.slug}"), ':before')
	28	+
	29	+ bgUrl = styles['background-image'].slice(5, -2)
	30	+ bgSize = if bgUrl.includes('@2x') then 32 else 16
	31	+ bgX = parseInt(styles['background-position-x'].slice(0, -2))
	32	+ bgY = parseInt(styles['background-position-y'].slice(0, -2))
	33	+
	34	+ withImage(bgUrl, (img) ->
	35	+ canvas = document.createElement('canvas')
	36	+
	37	+ canvas.width = bgSize
	38	+ canvas.height = bgSize
	39	+ canvas.getContext('2d').drawImage(img, bgX, bgY)
	40	+
	41	+ if defaultUrl == null
	42	+ defaultUrl = favicon.href
	43	+
	44	+ urlCache[doc.slug] = canvas.toDataURL()
	45	+ favicon.href = urlCache[doc.slug]
	46	+
	47	+ currentSlug = doc.slug
	48	+ )
	49	+
	50	+@resetFavicon = () ->
	51	+ if defaultUrl != null and currentSlug != null
	52	+ $('link[rel="icon"]').href = defaultUrl
	53	+ currentSlug = null

@@ -153,6 +153,9 @@ class app.views.Content extends app.View · 152 unmodified lines
153	153	return
154	154
155	155	afterRoute: (route, context) =>
	156	+ if route != 'entry' and route != 'type'
	157	+ resetFavicon()
	158	+
156	159	switch route
157	160	when 'root'
158	161	@show @rootPage

@@ -40,6 +40,7 @@ class app.views.EntryPage extends app.View · 39 unmodified lines
40	40	if app.disabledDocs.findBy 'slug', @entry.doc.slug
41	41	@hiddenView = new app.views.HiddenPage @el, @entry
42	42
	43	+ setFaviconForDoc(@entry.doc)
43	44	@delay @polyfillMathML
44	45	@trigger 'loaded'
45	46	return

@@ -9,6 +9,7 @@ class app.views.TypePage extends app.View · 8 unmodified lines
9	9
10	10	render: (@type) ->
11	11	@html @tmpl('typePage', @type)
	12	+ setFaviconForDoc(@type.doc)
12	13	return
13	14
14	15	getTitle: ->

@@ -94,8 +94,6 @@ class app.views.DocList extends app.View · 93 unmodified lines
94	94	$.stopEvent(event)
95	95	doc = app.docs.findBy 'slug', event.target.getAttribute('data-slug')
96	96
97		− @setFaviconForDoc(doc)
98		−
99	97	if doc and not @lists[doc.slug]
100	98	@lists[doc.slug] = if doc.types.isEmpty()
101	99	new app.views.EntryList doc.entries.all()
@@ -113,29 +111,6 @@ class app.views.DocList extends app.View · 11 unmodified lines
113	111	delete @lists[doc.slug]
114	112	return
115	113
116		− setFaviconForDoc: (doc) ->
117		− link = $("a._list-item[data-slug='#{doc.slug}']")
118		− styles = window.getComputedStyle(link, ':before')
119		−
120		− bgUrl = styles['background-image'].slice(5, -2)
121		− bgSize = if bgUrl.includes('@2x') then 32 else 16
122		− bgPositions = styles['background-position'].split(' ')
123		− bgX = parseInt(bgPositions[0].slice(0, -2))
124		− bgY = parseInt(bgPositions[1].slice(0, -2))
125		−
126		− img = new Image()
127		− img.src = bgUrl
128		− img.onload = () =>
129		− canvas = document.createElement('canvas')
130		−
131		− canvas.width = bgSize
132		− canvas.height = bgSize
133		− canvas.getContext('2d').drawImage(img, bgX, bgY)
134		−
135		− $('link[rel="icon"]').href = canvas.toDataURL()
136		− return
137		− return
138		−
139	114	select: (model) ->
140	115	@listSelect.selectByHref model?.fullPath()
141	116	return