Mac OS X: Fix crash in Harfbuzz-NG

CoreText does not support multithreading, so we would get a
crash in tst_qglthreads. So we disable multithreading for
HB-NG.

Task-number: QTBUG-38762
Change-Id: I0473037c16017ff77cbba9b11fc0b396775ef789
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Fix the documentation on how to use -openssl-linked.

You set the environment /before/ you run configure.

Change-Id: I6954656f892214f41b5f2ec4e3f4926eb5a9e247
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
fix doc references to webkit

we can't derive the doc index paths from QMAKEMODULES, as the mkspecs dir
may not live at the repo's top level.
instead, explicitly announce the repo's top level build dirs in QTREPOS,
and use that accordingly.

Task-number: QTBUG-38862
Change-Id: I643ad2bf63c8fca0ffc44ce3457dbe8a16dcab07
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Fix stateful handling of invalid UTF-8 straddling buffer borders

When a UTF-8 sequences is too short, QUtf8Functions::fromUtf8 returns
EndOfString. If the decoder is stateful, we must save the state and then
restart it when more data is supplied.

The new stateful decoder (8dd47e34b9b96ac27a99cdcf10b8aec506882fc2)
mishandled the Error case by advancing the src pointer by a negative
number, thus causing a buffer overflow (the issue of the task).

And it also did not handle the len == 0 case properly, though neither
did the older decoder.

Task-number: QTBUG-38939
Change-Id: Ie03d7c55a04e51ee838ccdb3a01e5b989d8e67aa
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Assume unlabelled mouse buttons are default buttons

This patch fixes legacy wheel scrolling for XInput2 drivers that fail to
label mouse buttons correctly.

Task-number: QTBUG-38937
Change-Id: I659890517e749dc0039489e0b7a8c38be1065d33
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>
Scrolling devices should not override touch or tablet devices

XISelectEvents override any earlier set event mask for the same device
ids. This may cause touch devices to stop reporting touch events if they
export scroll buttons or axis.

The patch checks for each scrolling device if they are also a touch
devices and includes the necessary bitmask if they are, and skips
any devices also recognized as tablet devices as they already capture
all relevant events.

In addition tablet event handling will no longer block handling of wheel
button events for scroll devices with the same device id.

Task-number: QTBUG-38935
Change-Id: Ifd4657beb0a0cebffe89d3470ef2bd605eb3552e
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
Fix an off-by-4 error in qHash with CRC32

I tested only the 64-bit build. The 32-bit build was reading garbage
past the end of the strings in some cases.

Change-Id: If6d239754e16a17cc4e8bb71e2b7778429dfa7ba
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@digia.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Merge remote-tracking branch 'origin/release' into stable

Change-Id: If1abbe7810ea43ae750db91066f9f579c79b2289
qmacmime: add support for public.rtf

Application like Safari on iOS posts rtf to the
pasteboard when copying html. With this converter added, you
can then paste rtf as html into Qt

Change-Id: I6b62bcc9cfc0b16a47d44bd8d74062226522526d
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
qmacmime: rename and move QMacPasteboardMimePlainText to the cocoa plugin

com.apple.traditional-mac-plain-text is not in use on iOS
according to Apples UTType reference. So we enable it only
for OS X by moving it into the cocoa port.

The order in which we instanciate convertors matters when
the application is reading data from the pasteboard.
But since QMacPasteboardMimePlainText should come before the
other "text/plain" convertors on OS X, moving it to the cocoa
port is safe as those convertors are instanciated after
those in qmacmime.

Change-Id: I76b9b14e5ce78f34e0f1ecbfee71e48a27a4687b
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
cocoa: remove rtf converter from cocoa

There is now a modified rtf converter in qmacmime
that can also write rtf back to the pasteboard, and
that works on both OS X and iOS.
So we can therefore remove the one from the cocoa port.

Change-Id: Ieed04502752290d2f139f98cec69477ff1edbe4e
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
Merge "Merge remote-tracking branch 'origin/release' into stable" into refs/staging/stable
Accessibility: Update ComboBox text on arrow keys

Use ValueChanged to notify of changes in the ComboBox.
On Linux we need to update name and then send selection-changed for
Orca.

Task-number: QTBUG-36814
Change-Id: Icdd34adddeac532476a6dd910d1e8bd33bcd590b
Reviewed-by: Jan Arve Sæther <jan-arve.saether@digia.com>
Accessibility Android: Fix states

Using the bit flags as parameters to the JNI functions would fail since
they'd always be cast to false instead of the c-style casts.

This fixes checkboxes reporting themselves as checkable and their check
state.

Task-number: QTBUG-38831
Change-Id: I30ab63ceabbec4cc2fbda9475e05523d915087fe
Reviewed-by: Jan Arve Sæther <jan-arve.saether@digia.com>
QOpenGLTextureBlitter fix allocating 4 times as much memory as needed

and copying a lot of garbage.

Change-Id: Idf1d23d06423a98ce503c9bcf9614b12dd1fb92a
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>