Graphics Domain
The Graphics domain defines methods for accessing a recording's graphics data.
All commands and events in this domain must include a sessionId.
Methods
Events
Types
Methods
Graphics.findPaints #
Find all points in the recording at which paints occurred. Does not return
until the recording is fully processed. Before returning,
paintPoints events will be periodically emitted. The union
of all these events describes all paint points in the recording.
Graphics.getDevicePixelRatio #
Get the value of window.devicePixelRatio. This is the ratio of
pixels in screen shots to pixels used by DOM/CSS data such as
DOM.getBoundingClientRect.
Return Object
- ratio
-
number
Graphics.getPaintContents #
Get the graphics at a point where a paint occurred.
parameters
- point
-
Recording.ExecutionPoint
Execution point to get the graphics for. This must have been listed in a
paintPointsevent. - mimeType
-
MimeType
Encoding format for the returned screen.
- resizeHeight
-
integer
If specified, the returned screen will be scaled to the specified height.
Return Object
- screen
-
ScreenShot
Screen shot of the rendered graphics.
Events
Graphics.paintPoints #
Describes some points in the recording at which paints occurred. No paint will occur for the recording's beginning execution point.
parameters
- paints
-
array[ PaintPoint ]
Types
Graphics.PaintPoint #
Information about a point where a paint occurred.
Type: Recording.TimeStampedPoint
properties
- screenShots
-
array[ ScreenShotDescription ]
Available screen shots for the graphics rendered at this point.
Graphics.ScreenShot #
Complete contents of the graphics rendered at some point.
Type: ScreenShotDescription
properties
- data
-
string
Raw graphics data encoded in base64.
- scale
-
number
The size of a CSS pixel relative to a pixel in this screenshot
Graphics.ScreenShotDescription #
Compact description of the graphics rendered at some point.
Type: object
properties
- mimeType
-
MimeType
Encoding used for the screen shot.
- hash
-
ScreenShotHash
Hash code for the screen shot's graphics data.