May window managers have a keyboard shortcut that switch away from the
current desktop (e.g. desktop switcher). Unfortunately, when this
happens, the meta/control keys that are used with the shortcut will
send a down event to the browser, but the up event will never be sent
because the browser no longer has focus at the point when the up event
happens. This can cause weird stuck key issues for VNC clients (not
just noVNC). To get around this, we try and detect when the browser
loses focus and release any keys that are on the keyDownList.
As an aside, if you run into this situation (in noVNC or another VNC
client), you can unstick the state by pressing and releasing the Ctrl,
Shift, Alt, etc.
Addresses: https://github.com/kanaka/noVNC/pull/135
With last_rect, the rects count can be high until a last_rect
pseudo-encoding is received which messes with the timing stats. So
count up the number of pixels rendered and show timing after the pixel
count reaches the width*height of the screen.
I.e. if the page is https:// then the WebSocket encrypt setting will
default to wss:// (TLS encryption).
Note that since noVNC settings are saved in cookies, this will only
affect first load. If you have already loaded the page, then the
encrypt setting will be whatever you last set it to.
Conflicts:
include/display.js
include/rfb.js
This merges in the fix for https://github.com/kanaka/noVNC/issues/70
This changes noVNC to use the preferred color ordering that most VNC
server prefer and that VMWare VNC requires. It's possible this may
break some VNC servers out there in which case we might have to do
something a bit more subtle such as having alternate render functions
for little and big endian color ordering.
Issue: https://github.com/kanaka/noVNC/issues/118
Reporter @maxnet also found and suggested the fix.
Probably could be more intelligent/generic by keying off the depth
sent by the server, but this will do for now.
Pull from websockify: 008a5118e728.
Should address issue https://github.com/kanaka/noVNC/issues/107
- Also add ability to force use of web-socket-js using
window.WEB_SOCKET_FORCE_FLASH
- in websock.js, for rQshift*, assume length is the full length if not
specified.
Resolve issue: https://github.com/kanaka/noVNC/pull/101
Based on proposal from @mightpenguin:
Matthew Balman <emperor@mightypenguin.org>
If view_only option is set then do not send mouse and keyboard events.
This is not a secure/enforced way to make a client view only. To
enforce view only at the server, most VNC servers support setting
a view only password.
- Remove the images using the old font.
- Simplify the naming of the new control bar icon images.
- Change keyboard input type to 'email'. 'url' type doesn't have
a space bar.
- Some clarifications to main LICENSE.txt file.
- CSS highlighting of buttons when selected.
- Keyboard button tweaked to allow show/hide toggle of keyboard.
Signed-off-by: Chris Gordon <snorkeyg@gmail.com>
Instead of using Google Font API, use local copy of Orbitron for speed
and also in case Internet connection is flaky or unavailable.
More info about Orbitron font here:
http://www.google.com/webfonts/specimen/Orbitron
Orbitron font is:
Copyright (c) 2009, Matt McInerney <matt@pixelspread.com>
Licensed under SIL Open Font License 1.1
see docs/LICENSE.OFL-1.1 or http://scripts.sil.org/OFL
Display API change:
- getTile -> startTile (no longer returns a tile)
- setSubTile -> subTile (drop img/tile first parameter)
- putTile -> finishTile (no longer takes img/tile paramter)
The Display tile logic uses canvas image data directly and
caches/reuses a 16x16 imageData tile (for other sizes, the tile is
create for each call). This gives a 30% speedup on Chrome
13 (and no significant change for Firefox 3.6/4.0).
Other:
- Remove rgbxImageFill and cmapImageFill routines.
- Simplify constructor tests and just error if createImageData is not
supported by canvas instead of .
- Remove webkit canvas bug workaround that effects Chrome 7. Chrome
7 usage share is now less than 0.5 percent and the workaround is
ugly. Drop the function wrapping in the constructor and the canvas
flush() routine.
- Remove support for getImageData (Opera 11+ now required)
Update browser support list:
- Chrome 8+ (really any except 7)
- Firefox 3.6+
- Safari 4+
- Opera 11+
- IE9+
- iOS 4.2+
- Make sure that on iOS the clipping setting is always forced to be
enabled.
- Hide the showKeyboard button unless connected.
- Use the URL text entry method and disable autocorrect and
autocapitalize in the show keyboard input box.
Cleanup:
- remove unused changeViewportMeta function from include/ui.js
- remove some debug output and debug CSS.
- rename panel toggle functions and put them in same location in the
code.
- refactor some code from updateState to updateVisualState routine
(renamed from updateSettingsState).
API changes (forward compatible):
- Display: add 'viewport' conf option to turn on and off viewport
mode.
- RFB: add 'viewportDrag' option to enable/disable viewport dragging
mode.
Other:
- Add clip mode setting to default UI. For touch devices, clipping is
forced on.
- Use CSS media queries to adjust visual elements based on screen
size. Especially disconnected logo size/position and button text size.
- Catch page unload while connected and give a confirm dialog.
- Change mouse button selector to a single button that changes between
' ', 'L', 'M', 'R' when clicked (empty means mouse is just being
moved and doesn't send clicks).
- include/ui.js:setViewClip() routine sets the clipping of the
viewport to the current size of the viewport area (if clipping is
enabled).
- include/ui.js:setViewDrag() toggles/enables/disables viewport
dragging mode.
- Add several images for the UI and for Apple devices:
- images/clipboard.png: clipboard menu icon
- images/connect.png: connect menu icon
- images/disconnect.png: disconnect button icon
- images/keyboard.png: show keyboard button
- images/move.png: viewport drag/move toggle button
- images/settings.png: settings menu icon
- images/screen_320x460.png: iOS app/desktop link start image
- images/screen_57x57.png: iOS app icon
- images/screen_700x700.png: full size noVNC image
New routine fbUpdateRequests that builds the update request messages
based on the result of display.getCleanDirtyReset().
- Also, fix fbUpdateRequest to properly accept x,y,xw,yw parameters.
Another firefox issue is that height: 100% is calculated as 100% of
the containing element even when the containing element is the window.
This means that the size of any sibling element shifts the window size
down by that much and causes the vertical scroll bars to appear. This
doesn't happen in Chrome.
- So instead, put a pad element inside the noVNC_screen element that
is the size of the control bar. This is hidden by the control bar,
however, it causes things to be sized correctly.
- Also, rename noVNC_defaultScreen to noVNC_logo.
- Clean some style specification out of the HTML.
For some reason, the position calculation is broken in firefox when
a DOM object in the ancestry change uses padding. So use margin to
shift the view area down.
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
Tested on iOS (iPhone and iPad).
The viewport is correctly clipped to the screen/browser size and
resizing works correctly.
This uses the CSS3 Flexible Box Layout model.
First crack at supporting touch screen for devices like Android and
iOS tablets. Part of https://github.com/kanaka/noVNC/issues/48.
This change detects touch screen support and uses the touchstart,
touchmove, touchend events in place of the normal mouse events.
In order to support middle and right mouse clicks, if the device is
a touch device, then three toggle buttons are added to the UI
representing the left, middle and right mouse buttons. These select
which mouse button will be sent when the screen is touched. All the
buttons can be toggled off, in which case then the touch events only
move the mouse cursor rather than sending a mouse down and mouse up
for touchstart and touchend events respectively. This allows fairly
full control with the mouse on touch screens.
Instead of R,G,B (red-shift of 0, green-shift of 8, and blue-shift
of 16), use the default ordering of B,G,R (red-shift of 16, green-shift of 8, and blue-shift
of 0) that tightvncserver uses (and that VMWare's VNC server seems to
require). Also, warn in the console if the server does not default to
the new format.
Fix the tests/canvas.html test. This is a general fix with regards to
the rename/refactor of canvas.js into display.js and not specific to
the color re-ordering.
noVNC version 0.1
Add debian packaging directory loosely based on
http://trac.zentyal.org/browser/trunk/extra/novnc/debian
Show web root directory on startup (pulled from websockify f1c8223).
Lintian fixups:
- Some license text clarifications.
- remove executable permission on utils/launch.sh and
include/web-socket-js/web_socket.js
- Add executable permission to utils/launch.sh
This addresses issue #65:
https://github.com/kanaka/noVNC/issues/65
When tightPNG encoded rects were received, any fill types were
immediately drawn to the canvas while images (PNG, JPEGs) were queued
for loading. This can cause screen corruption when things are changing
rapidly due to the misordering of fills vs images.
Also, remove the onload setting in each image on the queue and instead
decrease the tight image queue scanning interval (to 40ms or 25
scans per second).
- 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
Issue #21 - non-US keyboard layouts.
The code section for tab, backspace and enter was commented out for
testing but got checked in that way. Fix that.
Issue #21 - non-US keyboard layouts.
Only identify some keys as special during the keyDown event so that
when using non-US keyboards the values don't overlap with the values
for normal keys.
Some keys have to still be identified in both keyDown and keyPress
since they generate both: backspace and enter for Firefox and Opera,
tab for Opera.
This is part of addressing issue #21 - non-US keyboard layouts.
There are several challenges when dealing with keyboard events:
- The meaning and use of keyCode, charCode and which depends on
both the browser and the event type (keyDown/Up vs keyPress).
- We cannot automatically determine the keyboard layout
- The keyDown and keyUp events have a keyCode value that has not
been translated by modifier keys.
- The keyPress event has a translated (for layout and modifiers)
character code but the attribute containing it differs. keyCode
contains the translated value in WebKit (Chrome/Safari), Opera
11 and IE9. charCode contains the value in WebKit and Firefox.
The which attribute contains the value on WebKit, Firefox and
Opera 11.
- The keyDown/Up keyCode value indicates (sort of) the physical
key was pressed but only for standard US layout. On a US
keyboard, the '-' and '_' characters are on the same key and
generate a keyCode value of 189. But on an AZERTY keyboard even
though they are different physical keys they both still
generate a keyCode of 189!
- To prevent a key event from propagating to the browser and
causing unwanted default actions (such as closing a tab,
opening a menu, shifting focus, etc) we must suppress this
event in both keyDown and keyPress because not all key strokes
generate on a keyPress event. Also, in WebKit and IE9
suppressing the keyDown prevents a keyPress but other browsers
still generated a keyPress even if keyDown is suppressed.
For safe key events, we wait until the keyPress event before
reporting a key down event. For unsafe key events, we report a key
down event when the keyDown event fires and we suppress any further
actions (including keyPress).
In order to report a key up event that matches what we reported
for the key down event, we keep a list of keys that are currently
down. When the keyDown event happens, we add the key event to the
list. If it is a safe key event, then we update the which attribute
in the most recent item on the list when we received a keyPress
event (keyPress should immediately follow keyDown). When we
received a keyUp event we search for the event on the list with
a matching keyCode and we report the character code using the value
in the 'which' attribute that was stored with that key.
For character codes above 255 we use a character code to keysym lookup
table. This is generated using the util/u2x11 script contributed by
Colin Dean (xvpsource.org).
API change: for intergrators that explicitly include the Javascript
files (that do not use include/vnc.js)js, include/input.js is a new
file that must also be included.
The mouse and keyboard handling could be useful on its own so split it
out into a Keyboard and Mouse class in include/input.js.
This refactoring is preparation to deal with issue #21 - non-US
keyboard layouts.
Fix mouse button mapping in IE9. All browsers have converged on
a standard left=0, middle=1, right=2 ... all except IE that is.
Add html5 doctype to tests.
In vnc_perf test, use do_test instead of start for function name since
start is a keyword in IE.
In error about Flash give a link to Adobe's download page.
Current timeout is 2 seconds for connect timeout. Use 5 seconds if
web-socket-js (Flash WebSockets emulator) is being used. On Windows XP
with Flash 10.2.152.26, connecting seems to take quite a bit longer
than it probably should. This should make it work more consistently.
Joel Martin
Mike Tinglof
Mike
Chris Gordon
Ed Schouten