2 # Copyright Anton Khodakivskiy 2012, 2013.
3 # Copyright Simon Lydell 2013, 2014.
5 # This file is part of VimFx.
7 # VimFx is free software: you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation, either version 3 of the License, or
10 # (at your option) any later version.
12 # VimFx is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with VimFx. If not, see <http://www.gnu.org/licenses/>.
21 # Wraps the markable element and provides methods to manipulate the markers.
23 # Creates the marker DOM node.
24 constructor: (@element, @elementShape, { @semantic, @type }) ->
25 document = @element.ownerDocument
26 @markerElement = document.createElement('div')
27 @markerElement.classList.add('VimFxHintMarker')
28 @weight = @elementShape.area
34 show: -> @setVisibility(true)
35 hide: -> @setVisibility(false)
36 setVisibility: (visible) ->
37 @markerElement.classList.toggle('VimFxHiddenHintMarker', not visible)
39 # To be called when the marker has been both assigned a hint and inserted
40 # into the DOM, and thus gotten a height and width.
41 setPosition: (viewport) ->
43 markerElement: { offsetHeight: height, offsetWidth: width }
44 elementShape: { nonCoveredPoint: { x: left, y: top, offset, rect } }
47 # Center the marker vertically on the non-covered point.
50 # Make sure that the marker stays within its element (vertically).
51 top = Math.min(top, rect.bottom - height)
52 top = Math.max(top, rect.top)
54 # Make the position relative to the top frame.
58 # Make sure that the marker stays within the viewport.
59 left = Math.min(left, viewport.right - width)
60 top = Math.min(top, viewport.bottom - height)
61 left = Math.max(left, viewport.left)
62 top = Math.max(top, viewport.top)
64 # The positioning is absolute.
65 @markerElement.style.left = "#{ left }px"
66 @markerElement.style.top = "#{ top }px"
70 left, right: left + width,
71 top, bottom: top + height,
78 document = @element.ownerDocument
80 while @markerElement.hasChildNodes()
81 @markerElement.firstChild.remove()
83 fragment = document.createDocumentFragment()
85 charContainer = document.createElement('span')
86 charContainer.textContent = char
87 fragment.appendChild(charContainer)
89 @markerElement.appendChild(fragment)
91 matchHintChar: (char) ->
92 if char == @hint[@hintIndex]
93 @toggleLastHintChar(true)
101 @toggleLastHintChar(false)
103 toggleLastHintChar: (visible) ->
104 @markerElement.children[@hintIndex]
105 .classList.toggle('VimFxCharMatch', visible)
107 isMatched: -> (@hintIndex == @hint.length)
109 markMatched: (matched) ->
110 @markerElement.classList.toggle('VimFxMatchedHintMarker', matched)
112 exports.Marker = Marker