Part of mobile device support:
https://github.com/kanaka/noVNC/issues/48
The Display object is redefined as a larger display region with
an equal or smaller visible viewport. The size of the full display
region is set/changed using resize(). The viewport is set/changed
using viewportChange().
All exposed routines that draw on the display now take coordinates
that are absolute (relative to the full display region). For example,
the result of fillRect(100, 100, 10, 10, [255,0,0]) will appear in the
canvas at (0,0) if the viewport is set to (100,100).
Details:
- Move the generic part of the viewport code from tests/viewport.html
into include/display.
- Add two new routines to the Display interface:
- viewportChange(deltaX, deltaY, width, height)
- This adjusts the position of the visible viewport and/or the
size of the viewport.
- deltaX and deltaY specify how the position of the viewport
should be shifted. The position of the viewport is clamped
to the full region size (i.e. cannot outside the display
region).
- The clean and dirty regions of the display are updated based
on calls to this routine. For example, if the viewport width
is increased, then there is now a dirty box on the right
side of the viewport. Another example, if the viewport is
shifted down and to the left over the display region, there
are now two dirty boxes: one on the left side and one
on the bottom of the viewport.
- getCleanDirtyReset()
- This returns an object with the clean box and a list of
dirty boxes (that need to be redrawn).
{'cleanBox':
{'x': x, 'y': y, 'w': w, 'h': h},
'dirtyBoxes':
[{'x': x, 'y': y, 'w': w, 'h': h}, ...]
}
- The coordinates in the clean and dirty boxes are absolute
coordinates (relative to the full display region) but they
are clipped to the visible viewport.
- Calling this function also resets the clean rectangle to be
the whole viewport (i.e. nothing visible needs to be redrawn
dirty) so the caller of this routine is responsible for
redrawing any
- Add conf_defaults which accepts an array of configuration
attributes.
- Split out user configuration defaults from the actual configuration
object.
- Add mode field and enforce read-only, write-once, read-write modes.
API changes:
- include/canvas.js renamed to include/display.js
- Display.rescale() method removed from API. Use Display.set_scale() instead.
- Make logo configuration attribute of Display and display it when
clear() is called if it is set.
API deprecations:
- use RFB onUpdateState instead of updateState.
- use RFB onClipboard instead of clipboardReceive.
See https://github.com/kanaka/noVNC/wiki/ModuleAPI for detailed noVNC
modules and API description.
Expand and normalize the event/callback interfaces. Standize on
"onEventName" form for callbacks.
Callback Renames:
- RFB updateState -> onUpdateState
- RFB clipboardReceive -> onClipboard
- Keyboard keyPress -> onKeyPress
- Mouse mouseButton -> onMouseButton
- Mouse mouseMove -> onMouseMove
Callback Additions:
- RFB onPasswordRequired
- RFB onBell
- RFB onFBUReceive
- RFB onFBUComplete
Other:
- Add array type support to Util.conf_default()
- Removed a bunch of routines from the Display API that were just used
internally and not actually by noVNC: flush, setFillColor,
imageDataGet, imageDataCreate, rgbxImageData, rgbxImageFill,
cmapImageData, cmapImageFill.
- More keyboard/mouse logging when debug turned on.
- Some JSLinting
Joel Martin