forked from jaegertracing/jaeger-ui
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
63 changed files
with
4,840 additions
and
1,076 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,206 @@ | ||
// @flow | ||
|
||
// Copyright (c) 2017 Uber Technologies, Inc. | ||
// | ||
// Permission is hereby granted, free of charge, to any person obtaining a copy | ||
// of this software and associated documentation files (the "Software"), to deal | ||
// in the Software without restriction, including without limitation the rights | ||
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
// copies of the Software, and to permit persons to whom the Software is | ||
// furnished to do so, subject to the following conditions: | ||
// | ||
// The above copyright notice and this permission notice shall be included in | ||
// all copies or substantial portions of the Software. | ||
// | ||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
// THE SOFTWARE. | ||
|
||
import type { Span, Trace } from '../../types'; | ||
|
||
export type Accessors = { | ||
getViewRange: () => [number, number], | ||
getSearchedSpanIDs: () => ?Set<string>, | ||
getCollapsedChildren: () => ?Set<string>, | ||
getViewHeight: () => number, | ||
getBottomRowIndexVisible: () => number, | ||
getTopRowIndexVisible: () => number, | ||
getRowPosition: number => { height: number, y: number }, | ||
mapRowIndexToSpanIndex: number => number, | ||
mapSpanIndexToRowIndex: number => number, | ||
}; | ||
|
||
interface Scroller { | ||
scrollTo: number => void, | ||
scrollBy: number => void, | ||
} | ||
|
||
function isSpanHidden(span: Span, childrenAreHidden: Set<string>, spansMap: Map<string, ?Span>) { | ||
const parentIDs = new Set(); | ||
let { references } = span; | ||
let parentID: ?string; | ||
const checkRef = ref => { | ||
if (ref.refType === 'CHILD_OF') { | ||
parentID = ref.spanID; | ||
parentIDs.add(parentID); | ||
return childrenAreHidden.has(parentID); | ||
} | ||
return false; | ||
}; | ||
while (Array.isArray(references) && references.length) { | ||
const isHidden = references.some(checkRef); | ||
if (isHidden) { | ||
return { isHidden, parentIDs }; | ||
} | ||
if (!parentID) { | ||
break; | ||
} | ||
const parent = spansMap.get(parentID); | ||
parentID = undefined; | ||
references = parent && parent.references; | ||
} | ||
return { parentIDs, isHidden: false }; | ||
} | ||
|
||
export default class ScrollManager { | ||
_trace: ?Trace; | ||
_scroller: Scroller; | ||
_accessors: ?Accessors; | ||
|
||
constructor(trace: ?Trace, scroller: Scroller) { | ||
this._trace = trace; | ||
this._scroller = scroller; | ||
this._accessors = undefined; | ||
|
||
this.scrollToNextVisibleSpan = this.scrollToNextVisibleSpan.bind(this); | ||
this.scrollToPrevVisibleSpan = this.scrollToPrevVisibleSpan.bind(this); | ||
this.scrollPageDown = this.scrollPageDown.bind(this); | ||
this.scrollPageUp = this.scrollPageUp.bind(this); | ||
this.setAccessors = this.setAccessors.bind(this); | ||
} | ||
|
||
_scrollPast(rowIndex: number, direction: 1 | -1) { | ||
const xrs = this._accessors; | ||
if (!xrs) { | ||
throw new Error('Accessors not set'); | ||
} | ||
const isUp = direction < 0; | ||
const position = xrs.getRowPosition(rowIndex); | ||
if (!position) { | ||
console.warn('Invalid row index'); | ||
return; | ||
} | ||
let { y } = position; | ||
const vh = xrs.getViewHeight(); | ||
if (!isUp) { | ||
y += position.height; | ||
// scrollTop is based on the top of the window | ||
y -= vh; | ||
} | ||
y += direction * 0.5 * vh; | ||
this._scroller.scrollTo(y); | ||
} | ||
|
||
_scrollToVisibleSpan(direction: 1 | -1) { | ||
const xrs = this._accessors; | ||
if (!xrs) { | ||
throw new Error('Accessors not set'); | ||
} | ||
if (!this._trace) { | ||
return; | ||
} | ||
const { duration, spans, startTime: traceStartTime } = this._trace; | ||
const isUp = direction < 0; | ||
const boundaryRow = isUp ? xrs.getTopRowIndexVisible() : xrs.getBottomRowIndexVisible(); | ||
const spanIndex = xrs.mapRowIndexToSpanIndex(boundaryRow); | ||
if ((spanIndex === 0 && isUp) || (spanIndex === spans.length - 1 && !isUp)) { | ||
return; | ||
} | ||
// fullViewSpanIndex is one row inside the view window unless already at the top or bottom | ||
let fullViewSpanIndex = spanIndex; | ||
if (spanIndex !== 0 && spanIndex !== spans.length - 1) { | ||
fullViewSpanIndex -= direction; | ||
} | ||
const [viewStart, viewEnd] = xrs.getViewRange(); | ||
const checkVisibility = viewStart !== 0 || viewEnd !== 1; | ||
// use NaN as fallback to make flow happy | ||
const startTime = checkVisibility ? traceStartTime + duration * viewStart : NaN; | ||
const endTime = checkVisibility ? traceStartTime + duration * viewEnd : NaN; | ||
const findMatches = xrs.getSearchedSpanIDs(); | ||
const _collapsed = xrs.getCollapsedChildren(); | ||
const childrenAreHidden = _collapsed ? new Set(_collapsed) : null; | ||
// use empty Map as fallback to make flow happy | ||
const spansMap = childrenAreHidden ? new Map(spans.map(s => [s.spanID, s])) : new Map(); | ||
const boundary = direction < 0 ? -1 : spans.length; | ||
let nextSpanIndex: number; | ||
for (let i = fullViewSpanIndex + direction; i !== boundary; i += direction) { | ||
const span = spans[i]; | ||
const { duration: spanDuration, spanID, startTime: spanStartTime } = span; | ||
const spanEndTime = spanStartTime + spanDuration; | ||
if (checkVisibility && (spanStartTime > endTime || spanEndTime < startTime)) { | ||
// span is not visible within the view range | ||
continue; | ||
} | ||
if (findMatches && !findMatches.has(spanID)) { | ||
// skip to search matches (when searching) | ||
continue; | ||
} | ||
if (childrenAreHidden) { | ||
// make sure the span is not collapsed | ||
const { isHidden, parentIDs } = isSpanHidden(span, childrenAreHidden, spansMap); | ||
if (isHidden) { | ||
childrenAreHidden.add(...parentIDs); | ||
continue; | ||
} | ||
} | ||
nextSpanIndex = i; | ||
break; | ||
} | ||
if (!nextSpanIndex || nextSpanIndex === boundary) { | ||
// might as well scroll to the top or bottom | ||
nextSpanIndex = boundary - direction; | ||
} | ||
const nextRow = xrs.mapSpanIndexToRowIndex(nextSpanIndex); | ||
this._scrollPast(nextRow, direction); | ||
} | ||
|
||
setTrace(trace: ?Trace) { | ||
this._trace = trace; | ||
} | ||
|
||
setAccessors = function setAccessors(accessors: Accessors) { | ||
this._accessors = accessors; | ||
}; | ||
|
||
scrollPageDown = function scrollPageDown() { | ||
if (!this._scroller || !this._accessors) { | ||
return; | ||
} | ||
this._scroller.scrollBy(0.95 * this._accessors.getViewHeight(), true); | ||
}; | ||
|
||
scrollPageUp = function scrollPageUp() { | ||
if (!this._scroller || !this._accessors) { | ||
return; | ||
} | ||
this._scroller.scrollBy(-0.95 * this._accessors.getViewHeight(), true); | ||
}; | ||
|
||
scrollToNextVisibleSpan = function scrollToNextVisibleSpan() { | ||
this._scrollToVisibleSpan(1); | ||
}; | ||
|
||
scrollToPrevVisibleSpan = function scrollToPrevVisibleSpan() { | ||
this._scrollToVisibleSpan(-1); | ||
}; | ||
|
||
destroy() { | ||
this._trace = undefined; | ||
this._scroller = (undefined: any); | ||
this._accessors = undefined; | ||
} | ||
} |
Oops, something went wrong.