/usr/share/hotot/js/widget.scrollbar.coffee is in hotot-common 1:0.9.8.14-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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constructor: (track, content, margin) ->
if typeof (track) != 'string'
@track = $(track)
else
@track = track
if typeof (track) != 'string'
@content = $(content)
else
@content = content
@disabled = false
@margin = margin
@handle = @track.find('.scrollbar_handle')
@content_height = 0
@handle_height = 0
if @track.length ==0 and @content.length == 0 and @handle.length == 0
return null
@recalculate_layout()
@bind()
disable: ->
@disabled = true
@content.css({'overflow-y': 'auto', 'overflow-x': 'hidden'})
@track.hide()
enable: ->
@disabled = false
@content.css({'overflow-y': 'hidden', 'overflow-x': 'hidden'})
@track.show()
recalculate_layout: ->
if @disabled
return
@content_height = @content.height()
@track.css('height', (@content_height - (@track.outerHeight(true) - @track.outerHeight())) + 'px')
@track_height = @track.height()
if (@content.get(0).scrollHeight <= @content_height)
@hide()
else
@show()
@handle.css(
'height', (@track_height * @content_height / @content.get(0).scrollHeight) + 'px')
@handle_height = @handle.height()
pos = @content.get(0).scrollTop * (@track_height - @handle_height) / @content.get(0).scrollHeight
@handle.css('top', pos + 'px')
return
on_wheel: (ev) ->
if @disabled
return
if event.wheelDeltaY > 1 or event.wheelDeltaY < -1
if event.wheelDelta
delta = event.wheelDelta / 2.5
offsetY = (@content.get(0).offsetTop - delta)
@scroll(offsetY)
return false
else
return true
activate: ->
@on_active = true
@track.addClass('active')
deactivate: ->
@on_active = false
@track.removeClass('active')
show: ->
@track.show()
hide: ->
@track.hide()
scroll_to: (pos) ->
@content.get(0).scrollTop = pos
scroll: (offset) ->
pos = @content_pos_check(@content.get(0).scrollTop + offset)
@content.get(0).scrollTop = pos
scroll_by_handle: (pos) ->
@handle.css('top', pos + 'px')
@content.get(0).scrollTop = pos * @content.get(0).scrollHeight / (@track_height - @handle_height)
handle_pos_check: (pos) ->
if pos < 0
pos = 0
if pos > @track_height - @handle_height
pos = @track_height - @handle_height
return pos
content_pos_check: (pos) ->
if pos < 0
pos = 0
if pos > @content.get(0).scrollHeight
pos = @content.get(0).scrollHeight
return pos
bind: ->
@handle.mousedown( (ev) =>
@activate()
@track_scroll_y = ev.clientY - @track.get(0).offsetTop - @handle.get(0).offsetTop
root._active_scrollbar = @
return false
).mouseup( (ev) =>
@deactivate()
)
@track.mousedown( (ev) =>
@activate()
pos = @handle_pos_check(ev.clientY - @track.offset().top - @handle_height*0.5)
@scroll_by_handle(pos)
return false
).mouseup( (ev) =>
@deactivate()
)
@content.on('mousewheel', (ev) => @on_wheel ev)
@content.on('DOMMouseScroll', (ev) => @on_wheel ev)
@content.scroll( (ev) =>
if not @on_active and not @disabled
pos = @content.get(0).scrollTop * (@track_height - @handle_height) / @content.get(0).scrollHeight
@handle.css('top', pos + 'px')
)
destory: ->
@track.off()
@track = null
@handle.off()
@handle = null
@content.off()
@content = null
root = exports ? this
root.widget = root.widget ? {}
root.widget.Scrollbar = Scrollbar
root.widget.Scrollbar.register = ->
$(document).mousemove( (ev) =>
# notify active scrollbar of its job
if root._active_scrollbar
sb = root._active_scrollbar
if sb.on_active and not sb.disabled and sb.track_scroll_y
pos = sb.handle_pos_check(ev.clientY - sb.track.get(0).offsetTop - sb.track_scroll_y)
sb.scroll_by_handle(pos)
return false
).mouseup( (ev) =>
# notify active scrollbar of releasing mouse.
if root._active_scrollbar
sb = root._active_scrollbar
sb.deactivate()
)
return
root._active_scrollbar = null
|