1 files changed, 260 insertions, 0 deletions
diff --git a/afb-client/bower_components/tether/coffee/constraint.coffee b/afb-client/bower_components/tether/coffee/constraint.coffee
new file mode 100644
index 0000000..d27c1c9
--- /dev/null
+++ b/afb-client/bower_components/tether/coffee/constraint.coffee
@@ -0,0 +1,260 @@
+{getOuterSize, getBounds, getSize, extend, updateClasses, defer} = @Tether.Utils
+
+MIRROR_ATTACH =
+    left: 'right'
+    right: 'left'
+    top: 'bottom'
+    bottom: 'top'
+    middle: 'middle'
+
+BOUNDS_FORMAT = ['left', 'top', 'right', 'bottom']
+
+getBoundingRect = (tether, to) ->
+  if to is 'scrollParent'
+    to = tether.scrollParent
+  else if to is 'window'
+    to = [pageXOffset, pageYOffset, innerWidth + pageXOffset, innerHeight + pageYOffset]
+
+  if to is document
+    to = to.documentElement
+
+  if to.nodeType?
+    pos = size = getBounds to
+    style = getComputedStyle to
+
+    to = [pos.left, pos.top, size.width + pos.left, size.height + pos.top]
+
+    for side, i in BOUNDS_FORMAT
+      side = side[0].toUpperCase() + side.substr(1)
+      if side in ['Top', 'Left']
+        to[i] += parseFloat style["border#{ side }Width"]
+      else
+        to[i] -= parseFloat style["border#{ side }Width"]
+
+  to
+
+@Tether.modules.push
+  position: ({top, left, targetAttachment}) ->
+    return true unless @options.constraints
+
+    removeClass = (prefix) =>
+      @removeClass prefix
+      for side in BOUNDS_FORMAT
+        @removeClass "#{ prefix }-#{ side }"
+
+    {height, width} = @cache 'element-bounds', => getBounds @element
+
+    if width is 0 and height is 0 and @lastSize?
+      # Handle the item getting hidden as a result of our positioning without glitching
+      # the classes in and out
+      {width, height} = @lastSize
+
+    targetSize = @cache 'target-bounds', => @getTargetBounds()
+    targetHeight = targetSize.height
+    targetWidth = targetSize.width
+
+    tAttachment = {}
+    eAttachment = {}
+
+    allClasses = [@getClass('pinned'), @getClass('out-of-bounds')]
+    for constraint in @options.constraints
+      allClasses.push(constraint.outOfBoundsClass) if constraint.outOfBoundsClass
+      allClasses.push(constraint.pinnedClass) if constraint.pinnedClass
+
+    for cls in allClasses
+      for side in ['left', 'top', 'right', 'bottom']
+        allClasses.push "#{ cls }-#{ side }"
+
+    addClasses = []
+
+    tAttachment = extend {}, targetAttachment
+    eAttachment = extend {}, @attachment
+
+    for constraint in @options.constraints
+      {to, attachment, pin} = constraint
+
+      attachment ?= ''
+
+      if ' ' in attachment
+        [changeAttachY, changeAttachX] = attachment.split(' ')
+      else
+        changeAttachX = changeAttachY = attachment
+
+      bounds = getBoundingRect @, to
+
+      if changeAttachY in ['target', 'both']
+        if (top < bounds[1] and tAttachment.top is 'top')
+          top += targetHeight
+          tAttachment.top = 'bottom'
+
+        if (top + height > bounds[3] and tAttachment.top is 'bottom')
+          top -= targetHeight
+          tAttachment.top = 'top'
+
+      if changeAttachY is 'together'
+        if top < bounds[1] and tAttachment.top is 'top'
+          if eAttachment.top is 'bottom'
+            top += targetHeight
+            tAttachment.top = 'bottom'
+
+            top += height
+            eAttachment.top = 'top'
+          else if eAttachment.top is 'top'
+            top += targetHeight
+            tAttachment.top = 'bottom'
+
+            top -= height
+            eAttachment.top = 'bottom'
+
+        if top + height > bounds[3] and tAttachment.top is 'bottom'
+          if eAttachment.top is 'top'
+            top -= targetHeight
+            tAttachment.top = 'top'
+
+            top -= height
+            eAttachment.top = 'bottom'
+          else if eAttachment.top is 'bottom'
+            top -= targetHeight
+            tAttachment.top = 'top'
+
+            top += height
+            eAttachment.top = 'top'
+
+        if tAttachment.top is 'middle'
+          if top + height > bounds[3] and eAttachment.top is 'top'
+            top -= height
+            eAttachment.top = 'bottom'
+
+          else if top < bounds[1] and eAttachment.top is 'bottom'
+            top += height
+            eAttachment.top = 'top'
+
+      if changeAttachX in ['target', 'both']
+        if (left < bounds[0] and tAttachment.left is 'left')
+          left += targetWidth
+          tAttachment.left = 'right'
+
+        if (left + width > bounds[2] and tAttachment.left is 'right')
+          left -= targetWidth
+          tAttachment.left = 'left'
+
+      if changeAttachX is 'together'
+        if left < bounds[0] and tAttachment.left is 'left'
+          if eAttachment.left is 'right'
+            left += targetWidth
+            tAttachment.left = 'right'
+
+            left += width
+            eAttachment.left = 'left'
+
+          else if eAttachment.left is 'left'
+            left += targetWidth
+            tAttachment.left = 'right'
+
+            left -= width
+            eAttachment.left = 'right'
+
+        else if left + width > bounds[2] and tAttachment.left is 'right'
+          if eAttachment.left is 'left'
+            left -= targetWidth
+            tAttachment.left = 'left'
+
+            left -= width
+            eAttachment.left = 'right'
+
+          else if eAttachment.left is 'right'
+            left -= targetWidth
+            tAttachment.left = 'left'
+
+            left += width
+            eAttachment.left = 'left'
+
+        else if tAttachment.left is 'center'
+          if left + width > bounds[2] and eAttachment.left is 'left'
+            left -= width
+            eAttachment.left = 'right'
+
+          else if left < bounds[0] and eAttachment.left is 'right'
+            left += width
+            eAttachment.left = 'left'
+
+      if changeAttachY in ['element', 'both']
+        if (top < bounds[1] and eAttachment.top is 'bottom')
+          top += height
+          eAttachment.top = 'top'
+
+        if (top + height > bounds[3] and eAttachment.top is 'top')
+          top -= height
+          eAttachment.top = 'bottom'
+
+      if changeAttachX in ['element', 'both']
+        if (left < bounds[0] and eAttachment.left is 'right')
+          left += width
+          eAttachment.left = 'left'
+
+        if (left + width > bounds[2] and eAttachment.left is 'left')
+          left -= width
+          eAttachment.left = 'right'
+
+      if typeof pin is 'string'
+        pin = (p.trim() for p in pin.split ',')
+      else if pin is true
+        pin = ['top', 'left', 'right', 'bottom']
+      
+      pin or= []
+
+      pinned = []
+      oob = []
+      if top < bounds[1]
+        if 'top' in pin
+          top = bounds[1]
+          pinned.push 'top'
+        else
+          oob.push 'top'
+
+      if top + height > bounds[3]
+        if 'bottom' in pin
+          top = bounds[3] - height
+          pinned.push 'bottom'
+        else
+          oob.push 'bottom'
+
+      if left < bounds[0]
+        if 'left' in pin
+          left = bounds[0]
+          pinned.push 'left'
+        else
+          oob.push 'left'
+
+      if left + width > bounds[2]
+        if 'right' in pin
+          left = bounds[2] - width
+          pinned.push 'right'
+        else
+          oob.push 'right'
+
+      if pinned.length
+        pinnedClass = @options.pinnedClass ? @getClass('pinned')
+        addClasses.push pinnedClass
+        for side in pinned
+          addClasses.push "#{ pinnedClass }-#{ side }"
+
+      if oob.length
+        oobClass = @options.outOfBoundsClass ? @getClass('out-of-bounds')
+        addClasses.push oobClass
+        for side in oob
+          addClasses.push "#{ oobClass }-#{ side }"
+
+      if 'left' in pinned or 'right' in pinned
+        eAttachment.left = tAttachment.left = false
+      if 'top' in pinned or 'bottom' in pinned
+        eAttachment.top = tAttachment.top = false
+
+      if tAttachment.top isnt targetAttachment.top or tAttachment.left isnt targetAttachment.left or eAttachment.top isnt @attachment.top or eAttachment.left isnt @attachment.left
+        @updateAttachClasses eAttachment, tAttachment
+
+    defer =>
+      updateClasses @target, addClasses, allClasses
+      updateClasses @element, addClasses, allClasses
+
+    {top, left}