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braidvis009.html
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braidvis009.html
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<script src="https://dglittle.github.io/cdn/random001.js"></script>
<script src="https://dglittle.github.io/cdn/utils004.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/gl-matrix/2.6.1/gl-matrix-min.js"></script>
<script src="https://invisible-college.github.io/universal-sync/diffsync.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>
<script src="https://unpkg.com/d3-dag"></script>
<body style="margin:0px"></body>
<script>
// 55
Math.randomSeed(13)
var BOX_X = 15
var BOX_Y = 22
var anim_dur = '0.5s'
var FOREGROUNDS = {
m : '#C8C8C8', // AE
'0' : '#F15E5E',
'1' : '#0167FF',
'2' : '#24B04B',
'3' : '#B04BB0'
}
var BACKGROUNDS = {
m : '#F5F5F580', // EF
'0' : '#FFEFEBA0',
'1' : '#C5E8FFA0',
'2' : '#CAE9CFA0',
'3' : '#E9CFE9A0'
}
var top_grid = document.createElement('div')
document.body.append(top_grid)
top_grid.style.display = 'grid'
top_grid.style['grid-template-columns'] = 'auto auto'
var left = document.createElement('div')
top_grid.append(left)
var right = document.createElement('div')
top_grid.append(right)
function create_line(x1, y1, x2, y2, stroke, dasharray) {
var line = document.createElementNS('http://www.w3.org/2000/svg', 'line')
line.setAttribute('x1', x1)
line.setAttribute('y1', y1)
line.setAttribute('x2', x2)
line.setAttribute('y2', y2)
line.style['stroke-width'] = 1
line.setAttribute('stroke', stroke)
if (dasharray) line.setAttribute('stroke-dasharray', dasharray)
return line
}
function create_rect(x, y, w, h, stroke) {
var rect = document.createElementNS('http://www.w3.org/2000/svg', 'rect')
rect.setAttribute('x', x)
rect.setAttribute('y', y)
rect.setAttribute('width', w)
rect.setAttribute('height', h)
rect.style['stroke-width'] = 1
rect.style.stroke = stroke
rect.style.fill = '#FFFFFF80'
return rect
}
function create_char(x, y, text, fill, bold) {
var char = document.createElementNS('http://www.w3.org/2000/svg', 'text')
char.style.fill = fill
char.style.fontSize = BOX_Y / 30 * 19
char.style.fontFamily = 'avenir, sans-serif'
if (bold) char.style.fontWeight = 'bold'
char.setAttribute('x', x)
char.setAttribute('y', y)
char.setAttribute('text-anchor', 'middle')
char.setAttribute('alignment-baseline', 'baseline')
char.appendChild(document.createTextNode(text))
return char
}
function anim(attr, from, to, dur) {
var anim = document.createElementNS('http://www.w3.org/2000/svg', 'animate')
anim.setAttribute('attributeType', 'XML')
anim.setAttribute('attributeName', attr)
anim.setAttribute('from', from)
anim.setAttribute('to', to)
anim.setAttribute('dur', dur)
return anim
}
var space_dag_div = null
function update_space_dag(merge_info) {
if (!space_dag_div) {
space_dag_div = document.createElement('div')
document.body.append(space_dag_div)
}
space_dag_div.innerHTML = ''
svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg')
space_dag_div.append(svg)
svg.setAttribute('width', 1000)
svg.setAttribute('height', BOX_Y * 3)
var size = BOX_Y
svg.append(create_line(size + 0.5, size, size + 0.5, size * 2, 'black'))
svg.append(create_line(size, size * 1.5 + 0.5, size * 2, size * 1.5 + 0.5, 'black'))
function draw_char_box(x, y, char, deleted) {
svg.append(create_char(x + size/2, y + size*0.75, char, deleted ? FOREGROUNDS.m : 'black', false))
}
function draw_char_boxes(x, y, text, deleted) {
svg.append(create_rect(x, y, size * text.length, size, 'black'))
for (var i = 0; i < text.length; i++) {
draw_char_box(x + i * size, y, text[i], deleted)
}
}
var next_top_x = size * 2
var next_bottom_x = size * 2
var last_top_was_middle = true
var last_bottom_was_middle = true
var very_first = true
var on_a = true
var ai = 0
var bi = 0
var a_text = merge_info.a_text
var b_text = merge_info.b_text
var a_regions = merge_info.a_regions
var b_regions = merge_info.b_regions
function draw_t(r, t, deleted, middle) {
if (middle) {
var x = Math.max(next_top_x, next_bottom_x)
if (!last_top_was_middle) {
if (next_top_x < x)
svg.append(create_line(next_top_x, size*0.75, x, size*0.75, 'black'))
svg.append(create_line(x, size*0.75, x + size/2 + 0.5, size*1.5 + 0.5, 'black'))
}
if (!last_bottom_was_middle) {
if (next_bottom_x < x)
svg.append(create_line(next_bottom_x, size*2.25, x, size*2.25, 'black'))
svg.append(create_line(x, size*2.25, x + size/2 + 0.5, size*1.5 + 0.5, 'black'))
}
if (!last_top_was_middle || !last_bottom_was_middle) x += size/2
if (last_top_was_middle && last_bottom_was_middle && t && !very_first) {
svg.append(create_line(x, size*1.5 + 0.5, x + size/2 + 0.5, size*1.5 + 0.5, 'black'))
x += size/2
}
if (t == '') {
svg.append(create_line(x, size * 1.5 + 0.5, x + size, size * 1.5 + 0.5, 'black'))
svg.append(create_line(x + size + 0.5, size, x + size + 0.5, size * 2, 'black'))
} else {
draw_char_boxes(x + 0.5, size + 0.5, t, deleted)
}
next_top_x = next_bottom_x = x + t.length * size
last_top_was_middle = true
last_bottom_was_middle = true
} else if (on_a) {
var x = next_top_x
if (last_top_was_middle) {
svg.append(create_line(next_top_x, size*1.5 + 0.5, x + size/2 + 0.5, size*0.75, 'black'))
} else {
if (r[5] >= 0 && b_regions[r[5]][6] && b_regions[r[5]][6] > x)
x = b_regions[r[5]][6]
svg.append(create_line(next_top_x, size*0.75, x + size/2 + 0.5, size*0.75, 'black'))
if (r[5] >= 0 && b_regions[r[5]][6]) {
svg.append(create_line(b_regions[r[5]][6], size*2.25, x + size/2 + 0.5, size*0.75, 'black'))
}
}
draw_char_boxes(x + size/2 + 0.5, size*0.25, t, deleted)
next_top_x = x + size/2 + t.length * size
r[6] = next_top_x
last_top_was_middle = false
} else {
var x = next_bottom_x
if (last_bottom_was_middle) {
svg.append(create_line(next_bottom_x, size*1.5 + 0.5, x + size/2 + 0.5, size*2.25, 'black'))
} else {
if (r[5] >= 0 && a_regions[r[5]][6] && a_regions[r[5]][6] > x)
x = a_regions[r[5]][6]
svg.append(create_line(next_bottom_x, size*2.25, x + size/2 + 0.5, size*2.25, 'black'))
if (r[5] >= 0 && a_regions[r[5]][6]) {
svg.append(create_line(a_regions[r[5]][6], size*0.75, x + size/2 + 0.5, size*2.25, 'black'))
}
}
draw_char_boxes(x + size/2 + 0.5, size*1.75, t, deleted)
next_bottom_x = x + size/2 + t.length * size
r[6] = next_bottom_x
last_bottom_was_middle = false
}
very_first = false
}
while (true) {
var aa = a_regions[ai]
var bb = b_regions[bi]
if (!aa && !bb) break
if (!aa) on_a = false
if (!bb) on_a = true
var ci = on_a ? ai : bi
var di = on_a ? bi : ai
var cc = on_a ? aa : bb
var dd = on_a ? bb : aa
var c_text = on_a ? a_text : b_text
var d_text = on_a ? b_text : a_text
if (cc[5] < di) {
var t = c_text.substr(cc[0], cc[1])
if (cc[2]) {
if (cc[3] < di) {
draw_t(cc, t, true)
} else if (cc[3] == di) {
draw_t(cc, t, false, true)
if (on_a) { bi++ } else { ai++ }
} else {
draw_t(cc, t)
}
} else {
draw_t(cc, t)
}
if (on_a) { ai++ } else { bi++ }
} else if (dd && dd[5] < ci) {
on_a = !on_a
} else {
throw 'failure'
}
}
draw_t(null, '', false, true)
}
// work here
var old_info = {}
function sync7_create_simple_dag(s7) {
var selected = {}
var d = document.createElement('div')
var svg_div = document.createElement('div')
svg_div.style.cursor = 'pointer'
d.append(svg_div)
function get_arrow_offsets(x1, y1, x2, y2) {
var start = vec3.fromValues(x1, y1, 0)
var end = vec3.fromValues(x2, y2, 0)
var to_end = vec3.subtract(vec3.create(), end, start)
var len = vec3.length(to_end)
return vec3.scale(vec3.create(), to_end, 1.0 / len * (len - 21))
}
function create_arrow(x1, y1, x2, y2, stroke, dasharray, uid) {
var line = document.createElementNS('http://www.w3.org/2000/svg', 'line')
var arrow = get_arrow_offsets(x1, y1, x2, y2)
line.setAttribute('marker-end', 'url(#marker_id_' + uid + ')')
line.setAttribute('x1', x1)
line.setAttribute('y1', y1)
line.setAttribute('x2', x1 + arrow[0])
line.setAttribute('y2', y1 + arrow[1])
line.style['stroke-width'] = 2
line.setAttribute('stroke', stroke)
if (dasharray) line.setAttribute('stroke-dasharray', dasharray)
return line
}
function anim_arrow(_x1, _y1, _x2, _y2, x1, y1, x2, y2, stroke, dasharray, uid) {
var _arrow = get_arrow_offsets(_x1, _y1, _x2, _y2)
var arrow = get_arrow_offsets(x1, y1, x2, y2)
var line = create_arrow(_x1, _y1, _x2, _y2, stroke, dasharray, uid)
line.append(anim('x1', _x1, x1, anim_dur))
line.append(anim('y1', _y1, y1, anim_dur))
line.append(anim('x2', _x1 + _arrow[0], x1 + arrow[0], anim_dur))
line.append(anim('y2', _y1 + _arrow[1], y1 + arrow[1], anim_dur))
setTimeout(() => {
line.setAttribute('x1', x1)
line.setAttribute('y1', y1)
line.setAttribute('x2', x1 + arrow[0])
line.setAttribute('y2', y1 + arrow[1])
})
return line
}
var svg = null
function redraw(firstTime) {
if (svg) svg.remove()
svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg')
svg_div.append(svg)
svg.setAttribute('width', s7.width)
svg.setAttribute('height', s7.height)
var defs = document.createElementNS('http://www.w3.org/2000/svg', 'defs')
svg.append(defs)
each(FOREGROUNDS, function (color, user) {
var marker = document.createElementNS('http://www.w3.org/2000/svg', 'marker')
marker.setAttribute('id', 'marker_id_' + user)
marker.setAttribute('orient', 'auto')
marker.setAttribute('markerWidth', '10')
marker.setAttribute('markerHeight', '10')
marker.setAttribute('refX', '0')
marker.setAttribute('refY', '5')
defs.append(marker)
var path = document.createElementNS('http://www.w3.org/2000/svg', 'path')
path.setAttribute('d', 'M0,3 L5,5 L0,7 Z')
path.setAttribute('fill', color)
marker.append(path)
})
each(s7.versions, function (c, id) {
var parents = Object.keys(c.to_parents).length
var merge_node = parents == 0 || parents > 1
var uid = merge_node ? 'm' : c.uid
var foreground = FOREGROUNDS[uid]
each(c.to_parents, function (d, pid) {
var old = old_info[pid + 'to' + id]
if (firstTime && old) {
svg.append(anim_arrow(old.x1, old.y1, old.x2, old.y2, s7.versions[pid].x || 0, s7.versions[pid].y || 0, c.x || 0, c.y || 0, foreground, null, uid))
} else if (firstTime && !old) {
svg.append(anim_arrow(s7.versions[pid].x || 0, s7.versions[pid].y || 0, (s7.versions[pid].x || 0) + 1, (s7.versions[pid].y || 0) + 1, s7.versions[pid].x || 0, s7.versions[pid].y || 0, c.x || 0, c.y || 0, foreground, null, uid))
} else {
svg.append(create_arrow(s7.versions[pid].x || 0, s7.versions[pid].y || 0, c.x || 0, c.y || 0, foreground, null, uid))
}
old_info[pid + 'to' + id] = {
x1 : s7.versions[pid].x || 0,
y1 : s7.versions[pid].y || 0,
x2 : c.x || 0,
y2 : c.y || 0
}
})
})
each(s7.versions, function (c, id) {
var parents = Object.keys(c.to_parents).length
var merge_node = parents == 0 || parents > 1
var uid = merge_node ? 'm' : c.uid
var foreground = FOREGROUNDS[uid]
var dot = document.createElementNS('http://www.w3.org/2000/svg', 'circle')
dot.style.fill = foreground
var old = old_info[id]
if (firstTime && old) {
dot.setAttribute('cx', old.x)
dot.setAttribute('cy', old.y)
dot.append(anim('cx', old.x, c.x || 0, anim_dur))
dot.append(anim('cy', old.y, c.y || 0, anim_dur))
setTimeout(() => {
dot.setAttribute('cx', c.x || 0)
dot.setAttribute('cy', c.y || 0)
}, 0)
dot.setAttribute('r', BOX_Y / 2)
} else {
dot.setAttribute('cx', c.x || 0)
dot.setAttribute('cy', c.y || 0)
if (firstTime) {
dot.setAttribute('r', 0)
dot.append(anim('r', 0, BOX_Y / 2, anim_dur))
setTimeout(() => {
dot.setAttribute('r', BOX_Y / 2)
}, 0)
} else {
dot.setAttribute('r', BOX_Y / 2)
}
}
svg.append(dot)
old_info[id] = {
x : c.x,
y : c.y
}
var radius = BOX_Y / 2 + 4
each(s7.column_leaves, function (leaf, column) {
if (id == leaf) {
var halo = document.createElementNS('http://www.w3.org/2000/svg', 'circle')
halo.style.fill = '#00000000'
halo.style.strokeWidth = '2'
halo.style.stroke = FOREGROUNDS[column]
var old = old_info['halo' + column]
if (firstTime && old) {
halo.setAttribute('cx', old.x)
halo.setAttribute('cy', old.y)
halo.setAttribute('r', old.r)
halo.append(anim('cx', old.x, c.x || 0, anim_dur))
halo.append(anim('cy', old.y, c.y || 0, anim_dur))
halo.append(anim('r', old.r, radius, anim_dur))
var my_radius = radius
setTimeout(() => {
halo.setAttribute('cx', c.x || 0)
halo.setAttribute('cy', c.y || 0)
halo.setAttribute('r', my_radius)
}, 0)
} else {
halo.setAttribute('cx', c.x || 0)
halo.setAttribute('cy', c.y || 0)
halo.setAttribute('r', radius)
}
old_info['halo' + column] = {
x : c.x || 0,
y : c.y || 0,
r : radius
}
svg.append(halo)
radius += 4
}
})
})
}
redraw(true)
svg_div.onmousemove = function (e) {
var pos = getRelPos(svg_div, e)
each(s7.versions, function (v, id) {
if (pos.x >= (v.x || 0) - 10 && pos.x < (v.x || 0) + 10 && pos.y >= (v.y || 0) - 10 && pos.y < (v.y || 0) + 10) {
var version = s7.versions[id]
if (version.merge_info) {
selected = {}
selected[id] = true
update_space_dag(version.merge_info)
redraw()
return false
}
}
})
}
svg_div.onmousedown = function (e) {
e.preventDefault()
var pos = getRelPos(svg_div, e)
var grabbed = null
each(s7.versions, function (v, id) {
if (pos.x >= (v.x || 0) - 10 && pos.x < (v.x || 0) + 10 && pos.y >= (v.y || 0) - 10 && pos.y < (v.y || 0) + 10) {
grabbed = {
id : id,
hot_x : pos.x - (v.x || 0),
hot_y : pos.y - (v.y || 0)
}
return false
}
})
redraw()
var oldMove = document.onmousemove
document.onmousemove = function (e) {
var pos = getRelPos(svg_div, e)
if (grabbed) {
s7.versions[grabbed.id].x = pos.x - grabbed.hot_x
s7.versions[grabbed.id].y = pos.y - grabbed.hot_y
redraw()
}
}
var oldUp = document.onmouseup
document.onmouseup = function (e) {
document.onmousemove = oldMove
document.onmouseup = oldUp
}
}
return d
}
function sync7_create_fancy_dag(s7) {
var selected = {}
var d = document.createElement('div')
var svg_div = document.createElement('div')
svg_div.style.cursor = 'pointer'
d.append(svg_div)
function calc_specials(id) {
var specials = {}
each(s7.versions[id].to_parents, function (d, p) {
var offset = 0
each(d, function (d) {
if (typeof(d) == 'number') {
offset += d
} else {
for (var i = 0; i < d[0].length; i++) {
specials[offset++] = true
}
}
})
})
return specials
}
function create_char_boxes(x, y, text, selected, specials, merge_node, version) {
var g = document.createElementNS('http://www.w3.org/2000/svg', 'g')
if (selected) {
var rect = document.createElementNS('http://www.w3.org/2000/svg', 'rect')
rect.style.fill = 'rgba(255, 255, 0, 0.5)'
rect.setAttribute('x', x)
rect.setAttribute('y', y)
rect.setAttribute('width', text.length * BOX_X)
rect.setAttribute('height', BOX_Y)
g.append(rect)
}
g.append(create_line(x, Math.floor(y + BOX_Y) + 0.5, x + BOX_X * text.length, Math.floor(y + BOX_Y) + 0.5, FOREGROUNDS.m, '3'))
for (var i = 0; i < text.length; i++) {
var uid = merge_node ? 'm' : version.uid
var foreground = FOREGROUNDS[uid]
g.append(create_char(Math.floor(x + i*BOX_X + BOX_X/2), y + BOX_Y*0.75, text[i], specials[i] ? foreground : FOREGROUNDS.m, specials[i] && !merge_node))
}
return g
}
function create_polygon(points, fill) {
var poly = document.createElementNS('http://www.w3.org/2000/svg', 'polygon')
poly.style.fill = fill
var points_text = []
for (var i = 0; i < points.length; i++) {
points_text.push((i == 0 ? '' : ' ') + points[i][0])
points_text.push(',' + points[i][1])
}
poly.setAttribute('points', points_text.join(''))
return poly
}
function create_polyline(points, stroke) {
var poly = document.createElementNS('http://www.w3.org/2000/svg', 'polyline')
poly.style.fill = 'none'
poly.style.stroke = stroke
poly.style['stroke-width'] = 1
var points_text = []
for (var i = 0; i < points.length; i++) {
points_text.push((i == 0 ? '' : ' ') + points[i][0])
points_text.push(',' + points[i][1])
}
poly.setAttribute('points', points_text.join(''))
return poly
}
function create_diff_lines(x1, y1, x2, y2, diff, merge_node, uid) {
var g = document.createElementNS('http://www.w3.org/2000/svg', 'g')
for (var pass = 0; pass <= 1; pass++) {
var child_offset = 0
var parent_offset = 0
each(diff, function (d) {
var points = []
points.push([x1 + child_offset + 0.5, y1 + BOX_Y])
points.push([x1 + child_offset + 0.5, y1])
points.push([x2 + parent_offset + 0.5, y2 + BOX_Y])
if (typeof(d) == 'number') {
child_offset += d * BOX_X
parent_offset += d * BOX_X
} else {
child_offset += d[0].length * BOX_X
parent_offset += d[1].length * BOX_X
}
points.push([x2 + parent_offset + 0.5, y2 + BOX_Y])
points.push([x1 + child_offset + 0.5, y1])
points.push([x1 + child_offset + 0.5, y1 + BOX_Y])
var foreground = null
var background = null
if (pass == 0 && merge_node && typeof(d) == 'number') {
foreground = FOREGROUNDS.m
background = BACKGROUNDS.m
} else if (pass == 1 && !merge_node && typeof(d) != 'number') {
foreground = FOREGROUNDS[uid]
background = BACKGROUNDS[uid]
} else if (pass == 0 && !merge_node && typeof(d) == 'number') {
foreground = FOREGROUNDS.m
background = BACKGROUNDS.m
}
if (foreground) {
g.append(create_polygon(points, background))
g.append(create_polyline(points.slice(0, 3), foreground))
g.append(create_polyline(points.slice(3), foreground))
}
})
}
return g
}
var svg = null
function redraw() {
if (svg) svg.remove()
svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg')
svg_div.append(svg)
svg.setAttribute('width', s7.width)
svg.setAttribute('height', s7.height)
each(s7.versions, function (c, id) {
var merge_node = Object.keys(c.to_parents).length > 1
var uid = merge_node ? 'm' : c.uid
each(c.to_parents, function (d, pid) {
svg.append(create_diff_lines(c.x || 0, c.y || 0, s7.versions[pid].x || 0, s7.versions[pid].y || 0, d, merge_node, uid))
})
})
each(s7.versions, function (c, id) {
var merge_node = Object.keys(c.to_parents).length > 1
svg.append(create_char_boxes(c.x || 0, c.y || 0, c.text || '', selected[id], calc_specials(id), merge_node, c))
})
}
redraw()
function getPos(e) {
var x = 0, y = 0
while (e != null) {
x += e.offsetLeft
y += e.offsetTop
e = e.offsetParent
}
return {x : x, y : y}
}
function getRelPos(to, positionedObject) {
var pos = getPos(to)
return {
x : positionedObject.pageX - pos.x,
y : positionedObject.pageY - pos.y
}
}
svg_div.onmousemove = function (e) {
var pos = getRelPos(svg_div, e)
each(s7.versions, function (v, id) {
if (pos.x >= (v.x || 0) && pos.x < (v.x || 0) + (v.text || 'Q!?').length * BOX_X && pos.y >= (v.y || 0) && pos.y < (v.y || 0) + BOX_Y) {
var version = s7.versions[id]
if (version.merge_info) {
selected = {}
selected[id] = true
update_space_dag(version.merge_info)
redraw()
return false
}
}
})
}
svg_div.onmousedown = function (e) {
e.preventDefault()
var pos = getRelPos(svg_div, e)
var grabbed = null
each(s7.versions, function (v, id) {
if (pos.x >= (v.x || 0) && pos.x < (v.x || 0) + (v.text || 'Q!?').length * BOX_X && pos.y >= (v.y || 0) && pos.y < (v.y || 0) + BOX_Y) {
grabbed = {
id : id,
hot_x : pos.x - (v.x || 0),
hot_y : pos.y - (v.y || 0)
}
return false
}
})
var oldMove = document.onmousemove
document.onmousemove = function (e) {
var pos = getRelPos(svg_div, e)
if (grabbed) {
s7.versions[grabbed.id].x = pos.x - grabbed.hot_x
s7.versions[grabbed.id].y = pos.y - grabbed.hot_y
redraw()
}
}
var oldUp = document.onmouseup
document.onmouseup = function (e) {
document.onmousemove = oldMove
document.onmouseup = oldUp
}
}
return d
}
var sync7 = {}
sync7.create = function () {
return {
versions : {
'root' : { to_parents : {}, from_kids : {} }
},
waiting_versions : {},
temp_versions : {},
real_leaves : ['root'],
leaf : 'root',
text : ''
}
}
sync7.commit = function (s7, s) {
if (s == s7.text) { return }
var cs = s7.temp_versions
s7.temp_versions = {}
var id = guid()
var to_parents = {}
s7.versions[s7.leaf].from_kids[id] = to_parents[s7.leaf] = sync7_diff(s, s7.text)
s7.versions[id] = cs[id] = { to_parents : to_parents, from_kids : {} }
s7.leaf = id
s7.real_leaves = [id]
s7.text = s
return cs
}
sync7.merge = function (s7, cs, cursors, custom_merge_func) {
if (!cursors) cursors = {}
if (!custom_merge_func) custom_merge_func = default_custom_merge_func
each(cs, function (c, id) {
each(c.to_parents, function (d, p) {
if (s7.waiting_versions[p]) {
s7.waiting_versions[p].from_kids[id] = d
}
})
})
each(s7.waiting_versions, function (c, id) {
each(c.to_parents, function (d, p) {
if (cs[p]) {
cs[p].from_kids[id] = d
}
})
})
var cant_add_these = {}
function find_version(id) {
return s7.versions[id] || cs[id] || s7.waiting_versions[id]
}
function mark_this_and_kids_as_unaddable(c, id) {
if (!cant_add_these[id]) {
cant_add_these[id] = true
each(c.from_kids, function (d, kid) {
var kidc = find_version(kid)
if (kidc)
mark_this_and_kids_as_unaddable(kidc, kid)
})
}
}
function process_version(c, id) {
var missing_parent = false
each(c.to_parents, function (d, p) {
if (!find_version(p)) {
missing_parent = true
return false
}
})
if (missing_parent)
mark_this_and_kids_as_unaddable(c, id)
}
each(cs, process_version)
each(s7.waiting_versions, process_version)
if (Object.keys(cs).length + Object.keys(s7.waiting_versions).length - Object.keys(cant_add_these).length <= 0) {
Object.assign(s7.waiting_versions, cs)
return cursors
}
var projected_cursors = map(cursors, function (cursor) {
var node = s7.leaf
while (s7.temp_versions[node]) {
var old_node = node
each(s7.versions[node].to_parents, function (d, p) {
var offset = 0
var poffset = 0
each(d, function (d) {
if (typeof(d) == 'number') {
if (cursor <= offset + d) {
cursor = cursor - offset + poffset
node = p
return false
}
offset += d
poffset += d
} else {
offset += d[0].length
poffset += d[1].length
}
})
if (old_node != node) return false
})
if (old_node == node) throw 'failed to project cursor up'
}
return [cursor, node]
})
function process_version2(c, id) {
if (cant_add_these[id]) {
if (cs[id])
s7.waiting_versions[id] = c
} else {
s7.versions[id] = c
if (s7.waiting_versions[id])
delete s7.waiting_versions[id]
each(c.to_parents, function (d, p) {
if (s7.versions[p]) {
s7.versions[p].from_kids[id] = d
}
})
}
}
each(cs, process_version2)
each(s7.waiting_versions, process_version2)
s7.real_leaves = sync7_get_leaves(s7.versions, s7.temp_versions)
var leaves = Object.keys(s7.real_leaves).sort()
var texts = {}
each(leaves, function (leaf) {
texts[leaf] = sync7_get_text(s7, leaf)
})
each(s7.temp_versions, function (c, k) {
each(c.to_parents, function (d, p) {
if (!s7.temp_versions[p]) {
delete s7.versions[p].from_kids[k]
}
})
delete s7.versions[k]
})
s7.temp_versions = {}
var prev_merge_node = leaves[0]
var ancestors = sync7_get_ancestors(s7, prev_merge_node)
for (var i = 1; i < leaves.length; i++) {
var leaf = leaves[i]
var i_ancestors = sync7_get_ancestors(s7, leaf)
var CAs = sync7_intersection(ancestors, i_ancestors)
var LCAs = sync7_get_leaves(CAs)
each(i_ancestors, function (v, k) {
ancestors[k] = v
})
function get_nodes_on_path_to_LCAs(node) {
var agg = {}
function helper(x) {
var hit_LCA = LCAs[x]
if (!CAs[x]) {
each(s7.versions[x].to_parents, function (d, p) {
hit_LCA = helper(p) || hit_LCA
})
}
if (hit_LCA) {
agg[x] = true
return true
}
}
helper(node)
return agg
}
function calc_dividers_and_such_for_node(node, nodes_on_path_to_LCAs, dividers, untouched_regions_for_node) {
untouched_regions_for_node[node] = [[0, texts[node].length, 0]]
function helper(node) {
if (untouched_regions_for_node[node]) return untouched_regions_for_node[node]
var pur = {}
each(s7.versions[node].from_kids, function (d, k) {
if (!nodes_on_path_to_LCAs[k]) { return }
var untouched = helper(k)
var ui = 0
var uo = 0
var offset = 0
var poffset = 0
each(d, function (r) {
var end_point = offset + ((typeof(r) == 'number') ? r : r[0].length)
while (untouched[ui] && end_point >= untouched[ui][2] + untouched[ui][1]) {
if (typeof(r) == 'number') {
var x = untouched[ui][2] + uo - offset + poffset
pur[x] = [untouched[ui][0] + uo, untouched[ui][1] - uo, x]
}
ui++
uo = 0
}
if (!untouched[ui]) { return false }
if (end_point > untouched[ui][2] + uo) {
if (typeof(r) == 'number') {
var x = untouched[ui][2] + uo - offset + poffset
pur[x] = [untouched[ui][0] + uo, end_point - (untouched[ui][2] + uo), x]
}
uo = end_point - untouched[ui][2]
dividers[untouched[ui][0] + uo] = untouched[ui][0] + uo
}
offset = end_point
poffset += (typeof(r) == 'number') ? r : r[1].length
})
})
return untouched_regions_for_node[node] = Object.values(pur).sort(function (a, b) { return a[2] - b[2] })
}
each(LCAs, function (_, lca) { helper(lca) })
}
var prev_nodes_on_path_to_LCAs = get_nodes_on_path_to_LCAs(prev_merge_node)
var prev_dividers = {}
var prev_untouched_regions_for_node = {}
calc_dividers_and_such_for_node(prev_merge_node, prev_nodes_on_path_to_LCAs, prev_dividers, prev_untouched_regions_for_node)
var leaf_nodes_on_path_to_LCAs = get_nodes_on_path_to_LCAs(leaf)
var leaf_dividers = {}
var leaf_untouched_regions_for_node = {}
calc_dividers_and_such_for_node(leaf, leaf_nodes_on_path_to_LCAs, leaf_dividers, leaf_untouched_regions_for_node)
each(LCAs, function (_, lca) {
function do_one_against_the_other(a, b, dividers) {
var bb, bi = 0
each(a, function (aa) {
while ((bb = b[bi]) && (bb[2] + bb[1] <= aa[2])) bi++
if (bb && bb[2] < aa[2]) {
var x = aa[2] - bb[2] + bb[0]
dividers[x] = x
}
while ((bb = b[bi]) && (bb[2] + bb[1] <= aa[2] + aa[1])) bi++
if (bb && bb[2] < aa[2] + aa[1]) {
var x = aa[2] + aa[1] - bb[2] + bb[0]
dividers[x] = x
}
})
}
var a = prev_untouched_regions_for_node[lca]
var b = leaf_untouched_regions_for_node[lca]
do_one_against_the_other(a, b, leaf_dividers)
do_one_against_the_other(b, a, prev_dividers)
})
function calc_endpoints(dividers, node) {
var endpoints = []
endpoints.push([0, 0, 0])
each(Object.values(dividers).sort(function (a, b) { return a - b }), function (offset) {
endpoints.push([offset, 1, offset])
endpoints.push([offset, 0, offset])
})
endpoints.push([texts[node].length, 1, texts[node].length])
return endpoints
}
var prev_endpoints = calc_endpoints(prev_dividers, prev_merge_node)
var leaf_endpoints = calc_endpoints(leaf_dividers, leaf)
function project_endpoints_to_LCAs(endpoints, node, nodes_on_path_to_LCAs) {
var endpoints_for_node = {}
endpoints_for_node[node] = endpoints
function helper(node) {
if (endpoints_for_node[node]) return endpoints_for_node[node]
var agg = {}
function add_to_agg(endpoint, projected_pos) {
var key = '[' + endpoint[0] + ',' + endpoint[1] + ']'
if (endpoint[1] == 0)
agg[key] = Math.min(agg[key] || Infinity, projected_pos)
else
agg[key] = Math.max(agg[key] || -Infinity, projected_pos)
}
each(s7.versions[node].from_kids, function (d, k) {
if (!nodes_on_path_to_LCAs[k]) { return }
var endpoints = helper(k)
var ei = 0
var offset = 0
var poffset = 0
each(d, function (d) {
var end = offset + ((typeof(d) == 'number') ? d : d[0].length)
while (endpoints[ei] && (endpoints[ei][2] < end || (endpoints[ei][1] == 1 && endpoints[ei][2] <= end))) {
if (typeof(d) == 'number') {
add_to_agg(endpoints[ei], endpoints[ei][2] - offset + poffset)
} else if (endpoints[ei][1] == 0) {
add_to_agg(endpoints[ei], poffset)
} else {
add_to_agg(endpoints[ei], poffset + d[1].length)
}
ei++
}
offset = end