Re: [SailfishDevel] Page Status code
On Thu, 13 Feb 2014 00:19:42 +0100
Thomas Perl th.p...@gmail.com wrote:
On 2014-02-12 20:36, Chris Walker wrote:
In the past (Harmattan code), I would have done this sort of
stuff :-
onStatusChanged: {
if (status==PageStatus.Activating) {
but there is no 'onStatusChanged' option now. So what do I use now?
I've looked here -
https://sailfishos.org/sailfish-silica/qml-sailfishsilica-page.html
but it doesn't mention that status directly.
In QML, every property automatically has a on[Property]Changed
signal, and those signals are not documented, because the language
itself defines that such signals always exist for each property and
therefore do not need to be documented explicitly. The documented
status property will - when changed - cause the onStatusChanged
handler to be called.
From
http://qt-project.org/doc/qt-5.0/qtqml/qtqml-syntax-objectattributes.html#property-change-signal-handlers:
Signal handlers for property change signal take the syntax form
/onPropertyChanged/ where /Property/ is the name of the property,
with the first letter capitalized. For example, although the
TextInput
http://qt-project.org/doc/qt-5.0/qtquick/qml-qtquick2-textinput.html
type documentation does not document a textChanged signal, this
signal is implicitly available through the fact that TextInput
http://qt-project.org/doc/qt-5.0/qtquick/qml-qtquick2-textinput.html
has a text
http://qt-project.org/doc/qt-5.0/qtquick/qml-qtquick2-textinput.html#text-prop
property and so it is possible to write an onTextChanged signal
handler to be called whenever this property changes [...]
So the code as written above (onStatusChanged) should in fact work
as-is.
HTH :)
I'll add all that to yet more stuff to learn :-)
Many thanks.
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Re: [SailfishDevel] Page Status code
it's still there and working. no idea what wrong with your setup
On 13.02.2014 01:36, Chris Walker wrote:
In the past (Harmattan code), I would have done this sort of stuff :-
onStatusChanged: {
if (status==PageStatus.Activating) {
but there is no 'onStatusChanged' option now. So what do I use now?
I've looked here -
https://sailfishos.org/sailfish-silica/qml-sailfishsilica-page.html but
it doesn't mention that status directly.
Any help appreciated.
___
SailfishOS.org Devel mailing list
___
SailfishOS.org Devel mailing list
Re: [SailfishDevel] Page Status code
On 2014-02-12 20:36, Chris Walker wrote:
In the past (Harmattan code), I would have done this sort of stuff :-
onStatusChanged: {
if (status==PageStatus.Activating) {
but there is no 'onStatusChanged' option now. So what do I use now?
I've looked here -
https://sailfishos.org/sailfish-silica/qml-sailfishsilica-page.html but
it doesn't mention that status directly.
In QML, every property automatically has a on[Property]Changed signal,
and those signals are not documented, because the language itself
defines that such signals always exist for each property and therefore
do not need to be documented explicitly. The documented status
property will - when changed - cause the onStatusChanged handler to be
called.
From
http://qt-project.org/doc/qt-5.0/qtqml/qtqml-syntax-objectattributes.html#property-change-signal-handlers:
Signal handlers for property change signal take the syntax form
/onPropertyChanged/ where /Property/ is the name of the property,
with the first letter capitalized. For example, although the TextInput
http://qt-project.org/doc/qt-5.0/qtquick/qml-qtquick2-textinput.html
type documentation does not document a textChanged signal, this signal
is implicitly available through the fact that TextInput
http://qt-project.org/doc/qt-5.0/qtquick/qml-qtquick2-textinput.html
has a text
http://qt-project.org/doc/qt-5.0/qtquick/qml-qtquick2-textinput.html#text-prop
property and so it is possible to write an onTextChanged signal handler
to be called whenever this property changes [...]
So the code as written above (onStatusChanged) should in fact work as-is.
HTH :)
Thomas
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