Re: UiBinder + CssResource + @ClassName = Error
I get the same error if I use {style.defaultStyle}. Could you clarify
why {style.panel-default} is not a valid value?
Thanks.
On Saturday, 15 August 2015 20:37:57 UTC+1, Thomas Broyer wrote:
Have you tried using {style.defaultStyle} in your attribute?
{style.panel-default} is not a valid value AFAICT, but maybe it'd be
detected only later (and is hidden by the current error)
On Wednesday, August 5, 2015 at 11:28:37 AM UTC+2, DaveC wrote:
Hi,
I have the following UiBinder:
!DOCTYPE ui:UiBinder SYSTEM http://dl.google.com/gwt/DTD/xhtml.ent;
ui:UiBinder xmlns:ui=urn:ui:com.google.gwt.uibinder xmlns:g=
urn:import:com.google.gwt.user.client.ui
ui:style type=com.saaconsultants.gwt.ui.test.client.Main.Style
.panel-default {
background: grey;
}
/ui:style
g:HTMLPanel addStyleNames={style.panel-default}Hello World!
/g:HTMLPanel
/ui:UiBinder
and CssResource:
public interface Style extends CssResource {
@ClassName(panel-default)
String defaultStyle();
}
When I compile the above code I get an error stating The following
obfuscated style classes were missing from the source CSS
file: panel-default: Fix by adding .panel-default{}.
Any idea what I'm doing wrong?
Cheers,
Dave
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UiBinder + CssResource + @ClassName = Error
Hi,
I have the following UiBinder:
!DOCTYPE ui:UiBinder SYSTEM http://dl.google.com/gwt/DTD/xhtml.ent;
ui:UiBinder xmlns:ui=urn:ui:com.google.gwt.uibinder xmlns:g=
urn:import:com.google.gwt.user.client.ui
ui:style type=com.saaconsultants.gwt.ui.test.client.Main.Style
.panel-default {
background: grey;
}
/ui:style
g:HTMLPanel addStyleNames={style.panel-default}Hello World!
/g:HTMLPanel
/ui:UiBinder
and CssResource:
public interface Style extends CssResource {
@ClassName(panel-default)
String defaultStyle();
}
When I compile the above code I get an error stating The following
obfuscated style classes were missing from the source CSS
file: panel-default: Fix by adding .panel-default{}.
Any idea what I'm doing wrong?
Cheers,
Dave
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Re: CellTable Memory Leak in IE8
No worries, glad it worked! ;)
I've not personally committed any code to the core gwt project but you can
find out more here
http://www.gwtproject.org/makinggwtbetter.html#contributingcode
Bear in mind that GWT 3.0 is going to be a very different animal (for
instance, from what I understand there will be no widgets or gwt-rpc...),
so perhaps there isn't such a need to get these things fixed... I might be
wrong though.
Cheers,
Dave
On Wednesday, 5 August 2015 13:24:27 UTC+1, Harvard Pan wrote:
Dave,
Thank you SO much for this. I tested this using my test project and it
seems to have solved the memory leak completely! I've attached my version
of the file (modified from 2.5.1-rc1 branch) with your changes.
What's the best way to get this fix to the GWT code base so that future
versions of GWT will have this fix as well? I'd previously logged Issue
#9164 (https://github.com/gwtproject/gwt/issues/9164) on the gwtproject
page.
Thanks again!
Harvard
On Tuesday, August 4, 2015 at 7:11:24 AM UTC-4, DaveC wrote:
Hi,
I think you'll have to dig into AbstractCellTable in order to fix this. I
did a quick test of a fix I implemented and it appears to work for IE11
running IE8/IE9 mode but not IE10 mode, I've not tested it in a real IE8 or
IE9.
Basically what I did was exaactly what you said - set row.innerHTML to
null.
I took a copy of AbstractCellTable (including the package structure) and
placed it in my test project. In the ImplTrident inner class I've tweaked
the methods replaceTableSection and replaceAllRowsImplLegacy to set the
innerHTML to null for each row e.g.
*private native final void setRowInnerHtmlToNull(Element row)/*-{*
*row.innerHTML = null;*
*}-*/;*
private void replaceTableSection.
TableElement tableElement = table.getElement().cast();
* Element child = section.getFirstChildElement();*
* while (child != null) {*
*setRowInnerHtmlToNull(child);*
*child = child.getNextSiblingElement();*
* }*
tableElement.replaceChild(newSection, section);
.}
protected void replaceAllRowsImplLegacy(AbstractCellTable? table,
TableSectionElement section,
SafeHtml html) {
// Remove all children.
Element child = section.getFirstChildElement();
while (child != null) {
Element next = child.getNextSiblingElement();
section.removeChild(child);
*setRowInnerHtmlToNull(child);*
child = next;
}
}
Hope this helps.
Cheers,
Dave
On Thursday, 23 July 2015 22:05:10 UTC+1, Harvard Pan wrote:
Hello,
Our company uses GWT 2.5.1-rc1 and many of our customers (healthcare)
use IE8. We were hopeful that the memory leak in CellTable would have been
addressed by the memory leak fix for FlexTable. That leak (Issue 6938 -
https://code.google.com/p/google-web-toolkit/issues/detail?id=6938) was
fixed in 2.6. After grabbing the fix and merging it into the 2.5.1-rc1
code, we can confirm that FlexTable indeed is fixed and no longer leaking.
However, we still have leaking resources in CellTable. I've written a small
sample application to demonstrate the code that leaks. It's available on
BitBucket for anyone to pull.
https://bitbucket.org/harvardpan/celltableleak/src/3eb0d9941df6fe40b4b09eef0ce1968c6db90da3/src/com/healthfortis/sample/celltableleak/client/CellTableLeak.java?at=master
The root cause of 6938 was described in a Microsoft Connect page:
http://connect.microsoft.com/IE/feedback/details/790340/memory-leak-in-ie9-ie10-tables
In it, it describes multiple reasons for the leak, including:
- rows with ids
- cells with ids
- code that references a row.cells expression, even if it does not
store or use the result (that's the fix in 6938)
- code that does not set row.innerHTML to null after invoking
table.deleteRow() for the row.
I imagine that the CellTable leak is related to one of the conditions
above. I suspect the last one as I never do actually see any setting to
null of innerHTML in the javascript. Wanted to check in to see if anyone on
this forum had any ideas on where we could investigate next.
Thanks!
Harvard
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Re: CellTable Memory Leak in IE8
Hi,
I think you'll have to dig into AbstractCellTable in order to fix this. I
did a quick test of a fix I implemented and it appears to work for IE11
running IE8/IE9 mode but not IE10 mode, I've not tested it in a real IE8 or
IE9.
Basically what I did was exaactly what you said - set row.innerHTML to null.
I took a copy of AbstractCellTable (including the package structure) and
placed it in my test project. In the ImplTrident inner class I've tweaked
the methods replaceTableSection and replaceAllRowsImplLegacy to set the
innerHTML to null for each row e.g.
*private native final void setRowInnerHtmlToNull(Element row)/*-{*
*row.innerHTML = null;*
*}-*/;*
private void replaceTableSection.
TableElement tableElement = table.getElement().cast();
* Element child = section.getFirstChildElement();*
* while (child != null) {*
*setRowInnerHtmlToNull(child);*
*child = child.getNextSiblingElement();*
* }*
tableElement.replaceChild(newSection, section);
.}
protected void replaceAllRowsImplLegacy(AbstractCellTable? table,
TableSectionElement section,
SafeHtml html) {
// Remove all children.
Element child = section.getFirstChildElement();
while (child != null) {
Element next = child.getNextSiblingElement();
section.removeChild(child);
*setRowInnerHtmlToNull(child);*
child = next;
}
}
Hope this helps.
Cheers,
Dave
On Thursday, 23 July 2015 22:05:10 UTC+1, Harvard Pan wrote:
Hello,
Our company uses GWT 2.5.1-rc1 and many of our customers (healthcare) use
IE8. We were hopeful that the memory leak in CellTable would have been
addressed by the memory leak fix for FlexTable. That leak (Issue 6938 -
https://code.google.com/p/google-web-toolkit/issues/detail?id=6938) was
fixed in 2.6. After grabbing the fix and merging it into the 2.5.1-rc1
code, we can confirm that FlexTable indeed is fixed and no longer leaking.
However, we still have leaking resources in CellTable. I've written a small
sample application to demonstrate the code that leaks. It's available on
BitBucket for anyone to pull.
https://bitbucket.org/harvardpan/celltableleak/src/3eb0d9941df6fe40b4b09eef0ce1968c6db90da3/src/com/healthfortis/sample/celltableleak/client/CellTableLeak.java?at=master
The root cause of 6938 was described in a Microsoft Connect page:
http://connect.microsoft.com/IE/feedback/details/790340/memory-leak-in-ie9-ie10-tables
In it, it describes multiple reasons for the leak, including:
- rows with ids
- cells with ids
- code that references a row.cells expression, even if it does not
store or use the result (that's the fix in 6938)
- code that does not set row.innerHTML to null after invoking
table.deleteRow() for the row.
I imagine that the CellTable leak is related to one of the conditions
above. I suspect the last one as I never do actually see any setting to
null of innerHTML in the javascript. Wanted to check in to see if anyone on
this forum had any ideas on where we could investigate next.
Thanks!
Harvard
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Compiler throws StringIndexOutOfBoundsException when parsing ui:style
Hi,
I've a ui:style with a CSS class that has double hyphens in it (the CSS
follows the BEM https://css-tricks.com/bem-101/pattern) e.g.
!DOCTYPE ui:UiBinder SYSTEM http://dl.google.com/gwt/DTD/xhtml.ent;
ui:UiBinder xmlns:ui=urn:ui:com.google.gwt.uibinder xmlns:g=
urn:import:com.google.gwt.user.client.ui
ui:style
.panel--default {
background: grey;
}
/ui:style
g:HTMLPanel addStyleNames={style.panel--default}Hello World!
/g:HTMLPanel
/ui:UiBinder
When the compiler runs it throws a StringIndexOutOfBoundsException:
java.lang.StringIndexOutOfBoundsException: String index out of range: 1
at java.lang.String.substring(String.java:1907)
at com.google.gwt.uibinder.attributeparsers.CssNameConverter.convertName
(CssNameConverter.java:46)
at com.google.gwt.uibinder.attributeparsers.FieldReferenceConverter.
expandDots(FieldReferenceConverter.java:205)
at com.google.gwt.uibinder.attributeparsers.FieldReferenceConverter.
convert(FieldReferenceConverter.java:191)
at com.google.gwt.uibinder.attributeparsers.StringAttributeParser.parse(
StringAttributeParser.java:59)...
(Also the Eclipse plugin throws the same error when trying to save the
UiBinder file - I'm not sure if it shares the same code as I couldn't find
the source code for the plugin).
I think there's a couple of issues here:
1. The CssNameConverter.convertName() method should handle double hyphens -
using a StringTokenizer (or similar) would fix this problem
2. A valid CSS identifier
http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier is not a valid
Java identifier
https://docs.oracle.com/javase/tutorial/java/nutsandbolts/variables.html IMHO
UiBinder and the Eclipse plugin should cope with this.
(Incidentally I don't get this error when using ClientBundle/CssResource
but then I'll have to expose all the CSS through the CssResource.)
I'm not sure if the CssNameConverter is the correct place to be validating
CSS class names - I don't know enough about GWTs internals or anything
about the Eclipse plugin to suggest where it should go. Also I think
issues/errors with CSS should be highlighted by the plugin (in the IDE) and
not later at compile time.
I think it would also be useful if the documentation made it clear what
is/isn't supported - it's important to remember that not everyone
developing for a GWT project comes from a Java background.
I'm more than willing to get my hands dirty (submitting patches, updating
documentation) but it's not something I've done for the main GWT project.
I've not raised a bug yet as docs said to post here first.
Cheers,
Dave
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Re: Emulated stack mode not resolving symbols
Anyone On Thursday, 25 April 2013 09:53:53 UTC+1, DaveC wrote: Hi, I'm trying to get some useful stack trace from the client side but all I get is: java.lang.Throwable: Exception caught: Exception caught: For input string: 59909596809 at Unknown.jk(Unknown Source) at Unknown.gi(Unknown Source) at Unknown.Wu(Unknown Source) at Unknown.Zu(Unknown Source) ... etc, etc. In the gwt.xml file I've got: set-property name=gwt.logging.simpleRemoteHandler value=ENABLED / set-property name=compiler.stackMode value=strip,emulated / set-configuration-property name=compiler.emulatedStack.recordLineNumbers value=true/ I've also got my own implementation of RemoteLoggingServiceImpl which sets the location of the symbol maps directory to: /WEB-INF/debug/symbolMaps (In the index.html file I switch between the two stack modes using meta name=gwt:property content=compiler.stackMode=strip / Can anyone see what I'm doing wrong? Cheers, Dave -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
Emulated stack mode not resolving symbols
Hi, I'm trying to get some useful stack trace from the client side but all I get is: java.lang.Throwable: Exception caught: Exception caught: For input string: 59909596809 at Unknown.jk(Unknown Source) at Unknown.gi(Unknown Source) at Unknown.Wu(Unknown Source) at Unknown.Zu(Unknown Source) ... etc, etc. In the gwt.xml file I've got: set-property name=gwt.logging.simpleRemoteHandler value=ENABLED / set-property name=compiler.stackMode value=strip,emulated / set-configuration-property name=compiler.emulatedStack.recordLineNumbers value=true/ I've also got my own implementation of RemoteLoggingServiceImpl which sets the location of the symbol maps directory to: /WEB-INF/debug/symbolMaps (In the index.html file I switch between the two stack modes using meta name=gwt:property content=compiler.stackMode=strip / Can anyone see what I'm doing wrong? Cheers, Dave -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
Re: IE + SSL + Image.setURL throws an Operation Exception at runtime
There was also another runtime Exception being thrown - this time the
culprit was the iFrame for GWT History (the exception was thrown at
the point the iframe's document was being accessed)... it was unused
and removing it fixed the problem.
I find it hard to believe that no one else has seen this error???
Anyone?
On Sep 19, 11:53 am, DaveC david.andrew.chap...@gmail.com wrote:
I think this maybe be a bug with GWT (but I'm not sure).
I'm running my app under https/ssl, in IE (7 8) I get an Operation
Exception (Network Error) if I set a previsouly created Image
widget's url to an unsecured url (which causes IE to popup a dialog
asking the user for permission).
The following code causes an exception to be thrown (using HTTPS/SSL
self signed certs):
public class TestingDeferImageLoad implements EntryPoint {
public void onModuleLoad() {
final Image image = new Image();
RootPanel.get().add(image);
Timer deferImageLoad = new Timer() {
@Override
public void run() {
try {
image.setUrl(http://www.google.co.uk/logos/2011/
Albert_Szent_Gyorgyi-2011-hp.jpg);
} catch(Exception e) {
Window.alert(e.getLocalizedMessage());
}
}
};
deferImageLoad.schedule(1000);
}
}
Without SSL everything works fine. Obviously I can catch/handle the
exception but should I have to? - It was a pain to track down.
Note: I've mirrored the same code in vanilla Javascript without the
Exception being thrown.
Although it's a bit of an edge case, has anyone else come accross this
problem? Should I file a bug??
Cheers,
Dave
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[gwt-contrib] Re: IE + SSL + Image.setURL throws an Operation Exception at runtime
There was also another runtime Exception being thrown - this time the
culprit was the iFrame for GWT History (the exception was thrown at
the point the iframe's document was being accessed)... it was unused
and removing it fixed the problem.
I find it hard to believe that no one else has seen this error???
Anyone?
On Sep 19, 3:46 pm, DaveC david.andrew.chap...@gmail.com wrote:
I think this maybe be a bug with GWT (but I'm not sure).
I'm running my app under https/ssl, in IE (7 8) I get an Operation
Exception (Network Error) if I set a previously created Image
widget's url to an unsecured url (which causes IE to popup a dialog
asking the user for permission).
The following code causes an exception to be thrown (using HTTPS/SSL
self signed certs):
public class TestingDeferImageLoad implements EntryPoint {
public void onModuleLoad() {
final Image image = new Image();
RootPanel.get().add(image);
Timer deferImageLoad = new Timer() {
@Override
public void run() {
try {
image.setUrl(http://www.google.co.uk/logos/2011/
Albert_Szent_Gyorgyi-2011-hp.jpg);
} catch(Exception e) {
Window.alert(e.getLocalizedMessage());
}
}
};
deferImageLoad.schedule(1000);
}
}
Without SSL everything works fine. Obviously I can catch/handle the
exception but should I have to? - It was a pain to track down.
Note: I've mirrored the same code in vanilla Javascript without the
Exception being thrown.
Although it's a bit of an edge case, has anyone else come accross this
problem? Should I file a bug??
Cheers,
Dave
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[gwt-contrib] Re: IE + SSL + Image.setURL throws an Operation Exception at runtime
Thanks for the replies John Jens, The app can run in http/https, the user can then configure the app to consume various resources, for example rss feeds, web services - in this instance the feed resources contained images which were then loaded over http. The issue was/is that IE throws a javascript network error when the image has it's url set - this is only reproducible in IE + GWT + SSL - mimicking the GWT code in vanilla Javascript + IE +SSL doesn't throw any errors, so I don't *think* it's a certificate/ssl/browser thing. Your right we should be using history management - but the inclusion of an iframe shouldn't cause a runtime error. Again this only occurs in IE + GWT + SSL. Cheers, Dave On Sep 20, 2:26 pm, Jens jens.nehlme...@gmail.com wrote: I think its a mixed-mode content problem (HTTPS for app and HTTP for your requested image). I can't see the issue in our app which uses HTTPS for both the app and all resources (to avoid the mixed-mode warning of browsers). -- J. -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
IE + SSL + Image.setURL throws an Operation Exception at runtime
I think this maybe be a bug with GWT (but I'm not sure).
I'm running my app under https/ssl, in IE (7 8) I get an Operation
Exception (Network Error) if I set a previsouly created Image
widget's url to an unsecured url (which causes IE to popup a dialog
asking the user for permission).
The following code causes an exception to be thrown (using HTTPS/SSL
self signed certs):
public class TestingDeferImageLoad implements EntryPoint {
public void onModuleLoad() {
final Image image = new Image();
RootPanel.get().add(image);
Timer deferImageLoad = new Timer() {
@Override
public void run() {
try {
image.setUrl(http://www.google.co.uk/logos/2011/
Albert_Szent_Gyorgyi-2011-hp.jpg);
} catch(Exception e) {
Window.alert(e.getLocalizedMessage());
}
}
};
deferImageLoad.schedule(1000);
}
}
Without SSL everything works fine. Obviously I can catch/handle the
exception but should I have to? - It was a pain to track down.
Note: I've mirrored the same code in vanilla Javascript without the
Exception being thrown.
Although it's a bit of an edge case, has anyone else come accross this
problem? Should I file a bug??
Cheers,
Dave
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IE + SSL + Image.setURL throws an Operation Exception at runtime
I think this maybe be a bug with GWT (but I'm not sure).
I'm running my app under https/ssl, in IE (7 8) I get an Operation
Exception (Network Error) if I set a previsouly created Image
widget's url to an unsecured url (which causes IE to popup a dialog
asking the user for permission).
The following code causes an exception to be thrown (using HTTPS/SSL
self signed certs):
public class TestingDeferImageLoad implements EntryPoint {
public void onModuleLoad() {
final Image image = new Image();
RootPanel.get().add(image);
Timer deferImageLoad = new Timer() {
@Override
public void run() {
try {
image.setUrl(http://www.google.co.uk/logos/2011/
Albert_Szent_Gyorgyi-2011-hp.jpg);
} catch(Exception e) {
Window.alert(e.getLocalizedMessage());
}
}
};
deferImageLoad.schedule(1000);
}
}
Without SSL everything works fine. Obviously I can catch/handle the
exception but should I have to? - It was a pain to track down.
Note: I've mirrored the same code in vanilla Javascript without the
Exception being thrown.
Although it's a bit of an edge case, has anyone else come accross this
problem? Should I file a bug??
Cheers,
Dave
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[gwt-contrib] IE + SSL + Image.setURL throws an Operation Exception at runtime
I think this maybe be a bug with GWT (but I'm not sure).
I'm running my app under https/ssl, in IE (7 8) I get an Operation
Exception (Network Error) if I set a previously created Image
widget's url to an unsecured url (which causes IE to popup a dialog
asking the user for permission).
The following code causes an exception to be thrown (using HTTPS/SSL
self signed certs):
public class TestingDeferImageLoad implements EntryPoint {
public void onModuleLoad() {
final Image image = new Image();
RootPanel.get().add(image);
Timer deferImageLoad = new Timer() {
@Override
public void run() {
try {
image.setUrl(http://www.google.co.uk/logos/2011/
Albert_Szent_Gyorgyi-2011-hp.jpg);
} catch(Exception e) {
Window.alert(e.getLocalizedMessage());
}
}
};
deferImageLoad.schedule(1000);
}
}
Without SSL everything works fine. Obviously I can catch/handle the
exception but should I have to? - It was a pain to track down.
Note: I've mirrored the same code in vanilla Javascript without the
Exception being thrown.
Although it's a bit of an edge case, has anyone else come accross this
problem? Should I file a bug??
Cheers,
Dave
--
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Re: Activities and Places and Layouts (again)
No worries :o) On Aug 15, 7:10 pm, Mike Dee mdichiapp...@gmail.com wrote: Dave, I think you got it. Double checked and wasn't setting height to 100%. Thanks, that seems to have done it. Thought I was doing that. Mike On Aug 15, 9:01 am, DaveC david.andrew.chap...@gmail.com wrote: Hi Mike, I'm trying to understand your issue... I'm assuming that DockLayoutPanel is in an Activity and that you're adding it to the SimplePanel using panel.setWidget() in the start method...? (I don't want to teach you to suck eggs - but you can use Firebug (or similar) to check the DOM of your page and make sure the DockLayoutPanel is actually being added). If so, it sounds like you just need to force the DockLayoutPanel to be 100% the height of it's container: dlp.setHeight(100%); If not I can give you a basic structure that at least works for me... Cheers, Dave On Aug 15, 3:51 pm, Mike Dee mdichiapp...@gmail.com wrote: I replaced RootPanel with RootLayoutPanel. Here is the EntryPoint from HelloMVP: private SimplePanel appWidget = new SimplePanel(); ... RootPanel.get().add( appWidget ); activityManager.setDisplay( appWidget ); I replaced RootPanel with RootLayoutPanel: private SimplePanel appWidget = new SimplePanel(); ... RootLayoutPanel.get().add( appWidget ); activityManager.setDisplay( appWidget ); Maybe I'm a little too naive in thinking that would do much. Also, when I look at the page source generated, it appears a DOCTYPE is already there. Here is the page source generated by the GWT app (HelloMVP). !doctype html !-- The DOCTYPE declaration above will set the -- !-- browser's rendering engine into -- !-- Standards Mode. Replacing this declaration -- !-- with a Quirks Mode doctype may lead to some -- !-- differences in layout. -- If I create a simple GWT app (not Activities Places) and plop a DockLayoutPanel in the RootPanel, it just works. Fills the page nicely without having to add any onResize handlers. Is there a reason why adding handlers would be needed in an Activities Places framework (such as that provided by HelloMVP)? I'd like to understand that a bit more. On Aug 15, 4:44 am, P.G.Taboada pgtabo...@googlemail.com wrote: You need rootlayoutpanel, the host page should be in standards mode ( see doctype declaration). Then you should look if all the panels being used implement provides resize/ requires resize. That is the way resize events get propagated to child elements in gwt. On Aug 15, 8:00 am, Mike Dee mdichiapp...@gmail.com wrote: Getting started with Activities and Places. I'd like to use a DockLayoutPanel to comprise the entire view (page). When I try, it doesn't work. Note I'm using HelloMVP is a starting point and that in the EntryPoint a SimplePanel is set up as the default Panel. I've tried adding a DockLayoutPanel to that. I also tried first adding a VerticalPanel and then a DockLayoutPanel based on some suggestions here. The DockLayoutPanel simply doesn't display. This was also mentioned in this message from last Oct:http://tinyurl.com/3z8mn4v. The resolution there was to adjust the positioning styles to be absolute. However, they appear to already be absolute. I've played around with setting the width and height of the parent (SimplePanel) panel to 100%. I've changed RootPanel to RootLayoutPanel in onLoadModule. Nothing seems to work. Seems like this would be something that is commonly done OR am I heading down the wrong path? Any ideas? Mike -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Best/Correct way to attach events to an element
Hi,
I've got some generated HTML that I'm trying to hook into using GWT to
listen to events. At the moment I've this:
public class LightWeightUiObject extends UIObject {
public LightWeightUiObject(Element element) {
setElement(element);
sinkEvents(Event.ONTOUCHSTART);
sinkEvents(Event.ONTOUCHMOVE);
sinkEvents(Event.ONTOUCHEND);
}
}
Is this the best/correct way of doing this?
(What I'm trying to do is avoid using Widgets as this dramtically
increases the size of my compiled app)
Cheers,
Dave
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Re: ClickHandlers and Anchors?
if (event.getSource() instanceof Anchor) {
...
}
Cheers,
Dave
On Jun 3, 1:17 pm, kevin kalo...@gmail.com wrote:
I have a Anchor as a cell of a FlexTable. Both the Anchor and the
FlexTable have click handlers and as a result, I'm getting two events
fired when I click on the anchor. Any one have an idea how to detect
that the FlexTable event is actually a click on the anchor?
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Re: combine GWT application from several modules coming from JARs or OSGI bundles
If you mean dynamically loading code at runtime, I don't *think* this is possible - we have a similar app (written originally against GWT 1.6) we have the notion of a plugin - it's a separate GWT module in it's own project, but is pulled in at compile time... these modules are pulled in using Gin/Guice so adding another plugin is as simple as pulling it in using DI... I didn't write this bit but I think thats how it works. On Jun 3, 2:06 am, Juan Pablo Gardella gardellajuanpa...@gmail.com wrote: +1 to who know a manner to resolve this 2011/6/2 Alexey Skor als...@gmail.com I need a web UI with pages like Info, Support, etc. That's easy. In addition, I have some plugins with their own editors, which need to be shown in the same web UI. It's something similar to Extensions page shown in Google Chrome: every extension has an Options link, which can contain any editor the extension wants. So, my main application does not know upfront how many plugins and editors it has. All it knows is how to call the plugin's showEditor() method. (this is how it's currently implemented in my Eclipse-based desktop app, which I'm trying to port to web) I'm wondering if GWT is applicable for this kind of applications. So far looks that GWT applications are monolithic and all pages / panels need to be referenced in the common gwt.xml file, which means I can't configure the distributive to include only plugin1 and plugin2 or only plugin 2 and plugin 3 - I have to always include everything since it's referenced in the common xml file. Any ideas how to use modularity with GWT so that UI panels can come from some modules/plugins? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/cVRCcmdib0s3dlFK. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
@Import CssResource not working (as expected?)
Hi,
Given:
@ImportedWithPrefix(unordered)
interface UnorderedListStyles extends CssResource {
list();
}
@ImportedWithPrefix(list)
interface ListItemStyles extends CssResource {
item();
}
interface Resources extends ClientBundle {
@Import(value = {UnorderedListStyles.class, ListItemStyles.class})
@Source(project.css)
CssResource styles();
interface Styles extends CssResource {
widget();
}
}
/// project.css
.widget .unordered-list {
background:red;
}
.widget .unordered-list .list-item {
color:green;
}
/
The above styles don't get applied. What am I doing wrong?
Cheers,
Dave
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Re: Odg.: Re: How to speed up Hosted mode
I've also noticed that moving from a GWT 1.7 version of building apps to the 2.1 way (UiBinder CellWidgets etc) makes a noticable difference... (less java/ecmascript code I guess). On Apr 18, 9:24 pm, Jeff Larsen larse...@gmail.com wrote: Lotus notes ouch! -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Odg.: Re: How to speed up Hosted mode
I might be on the wrong track but have you checked the temp directory where java writes out files (on windows xp it's something like c:/ documents and settings//*user*/localsettings) I regularly (once a week) have to clear tens of thousands of files and GBs of data otherwise eclipse (and lotus notes) comes to a crawl... On Apr 18, 3:51 pm, mike b mbaker.t...@gmail.com wrote: I just remembered one other major difference between my environment and my coworker's... I downloaded the gwt 2.2 code branch from google and compiled it with only ie6 and gecko1_8 enabled. (see UserAgent.gwt.xml in gwt-user.jar) Maybe async will help you compile only what has changed, rather than everythying? This conversation just went out of my (so seamingly small) realm of knowledge!!! Good luck, Mike -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: ListEditor is there a way to edit a generic type?
Thanks for the reply rjcarr but, perhaps I didn't ask the right
question... given the following ListEditor bits:
interface ListEditorDriver extends
SimpleBeanEditorDriverListAbstractAnimal,
ListEditorAbstractAnimal, AbstractAnimalkEditor {}
private ListEditorAbstractAnimal, AbstractAnimalEditor editor =
ListEditor.of(new AbstractAnimalSource());
private ListEditorDriver driver = GWT.ListEditorDriver
create(ListEditorDriver.class);
class AbstractAnimalSource extends EditorSourceAbstractAnimalEditor
{
public AbstractAnimalSource() {}
@Override
public AbstractAnimalEditor create(int index) {
AbstractAnimalEditor abstractAnimalEditor = new
AbstractAnimalEditor();
container.insert(abstractAnimalEditor , index);
return abstractAnimalEditor ;
}
@Override
public void dispose(AbstractAnimalEditor subEditor) {
subEditor.removeFromParent();
}
@Override
public void setIndex(AbstractAnimalEditor editor, int index) {
container.insert(editor, index);
}
}
class AbstractAnimalEditor extends Composite implements
EditorAbstractAnimal {
TextBox name;
public AbstractAnimalEditor() {
FlowPanel fp = new FlowPanel();
initWidget(fp);
InlineLabel nameLabel = new InlineLabel(Name: );
fp.add(nameLabel);
name = new TextBox();
fp.add(name);
}
}
Is there any way I can tell the Editor Framework that my
AbstractAnimal is either a Bird, Mammal, Fish etc...?
The Editor Framework does all the widget instantiation and setting/
getting of values there doesn't appear to be a point where I can say
If the type is Bird use the BirdEditor, if the type is Fish use the
FishEditor...
Cheers,
Dave
On Dec 9, 7:41 am, rjcarr rjc...@gmail.com wrote:
Is this a GWT question? It sounds like a generic polymorphism
question.
If the latter, you have two options. Either add wing span information
to the parent type (Animal) or do explicit checks for Birds and then
do a cast.
Good luck!
On Dec 8, 9:11 am, DaveC david.andrew.chap...@gmail.com wrote:
Hi,
What I'm trying to do is pass ListEditor a list of generic types e.g.
an AbstractAnimal type but what the list gets might be a Bird type, a
Fish type, Mammal... etc...
The problem is that that my Bird type has a property wingSpan which
the Fish type does not.. they might also share a property e.g. name
or canFly.
The Editor complains that it couldn't find a getter for canFly in
proxy type ...AbstractAnimal.
Is there any way around this?
Thanks for you help in advance.
Cheers,
Dave
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ListEditor is there a way to edit a generic type?
Hi, What I'm trying to do is pass ListEditor a list of generic types e.g. an AbstractAnimal type but what the list gets might be a Bird type, a Fish type, Mammal... etc... The problem is that that my Bird type has a property wingSpan which the Fish type does not.. they might also share a property e.g. name or canFly. The Editor complains that it couldn't find a getter for canFly in proxy type ...AbstractAnimal. Is there any way around this? Thanks for you help in advance. Cheers, Dave -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT JavaDoc failures KeyPress v. KeyDown
@Greg I felt the need to reply on the topic of what GWT is/does... What (Java) devs think GWT is/does... *** Removes the need for them to understand ANY front end web technologies (e.g. HTML, Javascript, DOM, CSS + xbrowser differences) *** All of our Java developers (where I work) have found that they still need to understand some CSS, HTML, DOM + xbrowser differences... what GWT gives you is Java, Type Checking, Refactoring, Dependancy Injection, code optimisations etc...all from a Java perspective... As a non-Java developer I struggle with GWT... I find it gets in my way, I have to understand Java, I don't like that fact that what I write is not what gets run in the browser, devmode is slow... But I agree with your point about Java docs/examples they are sometimes a little thin especially for someone (like me) who is not a Java Dev. Cheers, Dave On Dec 8, 12:15 am, Jeff Chimene jchim...@gmail.com wrote: As one who writes documentation professionally, I see the impedance mismatch between Greg's desires and Javadoc. AFAICT, Greg wants to know why; Javadoc describes how. A toolkit that evolves as rapidly as GWT does not lend itself to in-depth why documentation. I see that the GWT team puts substantial effort into sample programs; which examples may be as close as we can get to why combined with how. I'm sure that the GWT team would welcome documentation contributions. The issue I have is ensuring such contributions have a lifetime 6 months. On Tue, Dec 7, 2010 at 3:17 PM, A. Stevko andy.ste...@gmail.com wrote: Greg - I admire your position on the quality of documentation. IMO, a measure of a sw engineer is not how much arcana he knows but rather knowing where to find it. Javadocs have long been a great source for the many of the details that I face daily although they typically suck for usability. A question to the group - Is it possible to crowd source the GWT and GAE javadocs? If we can't get to the source to augment the documentation, how about some kind of sister wiki site that can be the proving ground for training and usability improvements while also providing a very specific location to discuss API meta issues. The first thought on an approach to this is to have the javadoc template automatically write external links into a google site or similar. --Andy Stevko On Tue, Dec 7, 2010 at 12:30 PM, Jeff Schwartz jefftschwa...@gmail.comwrote: Good luck! On Tue, Dec 7, 2010 at 3:08 PM, Greg Dougherty dougherty.greg...@mayo.edu wrote: Hi Jeff, If it ever comes to be the situation that the only way I can do programming is on the web, then I'll waste the time to learn the current iteration of web programming. But life is currently not so dim or dreary, and doesn't look to be that way any time soon. (And if I am going to take the time to read, read, read on new programming ideas, it'll be on the Android (where there's a decent job market, and worthwhile development tools) or the iPhone (I've got one iPhone app out, but I'd like to learn more networking, and some of the newer technologies, not on a constantly changing standards body heavily influenced by Microsoft and Internet Explorer.) I have a finite supply of learn time, and I have thigns that, for me, are far better ways to spend it than reading W3C documents. Let me put it another way: I have absolutely NO desire to be a master Web applications developer. If I wanted to be one of those, I wouldn't be using GWT. I'd be rolling my own. I took a look at SpringToolsSuite and Spring Roo. Their documentation sucks, their tutorials are out of date, their integration with Eclipse is poor, and the support on the forums is weak. So, since I AM a good SQL developer, I said the heck with that, and rolled my own for my current project. And do not regret the choice at all. The difference is that I find SQL a lot more interesting than JavaScript. Look, I'm glad that there are people out there who WANT to dig into the arcana of web programming. I'm not one of them. I'm someone who wants to solve other problems. It was my impression that GWT exists to serve the people who want to solve those other problems, and don't want to have to dig in to that web BS (like worrying about IE vs. FF). If that IS GWT's purpose, then their documentation sucks, and is not in line with their purpose. If that ISN'T GWTs purpose, what is? Greg On Dec 7, 11:24 am, Jeff Schwartz jefftschwa...@gmail.com wrote: Hi Greg, I have been in IT for a very long time. You see, I am what the youngins sometimes refer to as an ol' fart :). As a matter of fact, I've been a developer in one form or another for so long that everything else prior to that seems to me to be prehistory - a vague sense of something there but not having much substance (oh GOD, help me lol). My point is that as technologies advance I try to stay
Re: ImageBundle and IE7
I think what you need to be using instead of ImageResource is
DataResource.
GWT uses a different method for bundling resources for the different
browsers - those that support Data URIs (IE8+, Firefox, Chrome et al)
get their images turned into base64 encoded strings - IE6/7 gets a
sprite image (all the images merged into one).
Cheers,
Dave
On Nov 15, 7:32 am, Frédéric MINATCHY frederic.minat...@gmail.com
wrote:
Hi everybody...
I have a problem with images bundle and IE7...
In some cases images are not rendered in other cases all images are rendered
on the same button... (I use those images as icons to custom buttons)
I don't understand everything seems ok on Firefox and Chrome (as usual)
I use gwt 2.1 and smartgwt
There is a part of my code :
public interface UsersAdministrationImagesResources extends ClientBundle {
public static UsersAdministrationImagesResources INSTANCE =
GWT.create(UsersAdministrationImagesResources.class);
@Source(user_add.png)
ImageResource addUserImage();
@Source(user_delete.png)
ImageResource deleteUserImage();
@Source(user_edit.png)
ImageResource editUserImage();
@Source(group_add.png)
ImageResource addGroupImage();
@Source(group_delete.png)
ImageResource deleteGroupImage();
@Source(group_edit.png)
ImageResource editGroupImage();
}
and the way i use it :
to show a smartgwt button :
modificationButton = new ImgButton();
modificationButton.setSrc(UsersAdministrationImagesResources.INSTANCE
.editUserImage().getURL());
and in a real gwt button :
createButton = new Button();
createButton.setHTML( label+i18n.createUser() + /label img
src=\ + UsersAdministrationImagesResources.INSTANCE
.editUserImage().getURL() + \);
createButton.setWidth(200);
createButton.setHeight(22);
Why is it always so difficult with IE?
Is there someone to help me pleaz
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Re: TabPanel - 100% height for client widget?
Have you tried using CSS?
.my-tab-content {
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
}
this *should* work as long as it's parent is positioned (relative/
absolute)...
The new layout panels I think require a RootLayoutPanel not a
RootPanel... but I can't remember exactly.
Cheers,
Dave
On Jul 11, 6:52 pm, Magnus alpineblas...@googlemail.com wrote:
Hi,
sorry for repeating and posting in this thread without solution, but I
must say that TabLayoutPanel is useless for me if its size cannot be
maximized.
So I'll have to build my own TabPanel, but this is not satisfactory
since a framework should prevent me from building my own versions of
things that should be already available.
I cannot understand why TabLayoutPanel insists on having its content
area squeezed at the top...
Magnus
On Jul 4, 12:24 am, Magnus alpineblas...@googlemail.com wrote:
Thanks! I tried with dummy panels, VerticalPanel and SimplePanel. I
tried absolute and relative sizes but nothing seems to have an effect.
private void init ()
{
TabPanel pnl = new TabPanel ();
pnl.setSize (100%,100%);
//pnl.setHeight (100px);
SimplePanel p = new SimplePanel ();
p.setPixelSize (100,200);
HTML txt1 = new HTML(This isa Text 1.);
p.add (txt1);
// txt1.setPixelSize (200,200);
pnl.add (p,Home 1);
HTML txt2 = new HTML(This is Text 2.);
pnl.add (txt2,Home 2);
}
Magnus
On Jul 3, 6:43 pm, aditya sanas 007aditya.b...@gmail.com wrote:
I think for that you will require to set its border explicitly.
that will settle this issue.
you can add a dummy panel on tab home1 or home2 and set its height
but here if you set height using % then it will not work you will have to
set height in pixels or any other like em...
i hope this will work.
--
Aditya
On Sat, Jul 3, 2010 at 7:09 PM, Magnus alpineblas...@googlemail.com
wrote:
In addition, it would set the wrong height! The height of the TabPanel
(pnl) is ok, it covers 100 % of the available space.
But the VerticalPanel p that I add as the client panel to one of the
tab pages is not affected.
Look at this screenshot:
http://yfrog.com/4rtabpanelp
The TabPanel (red border) is ok. But its child panel (blue border) is
crunched at the top.
How can I get the blue border maximized to the red border?
Thanks
Magnus
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Re: Detecting browser in GWT 2.0.3
There *might* be a way to do it... e.g. 1. only invalidate the session on a specific log out request 2. store a flag/timestamp clientside to either invalidate the session or not 3. onload reads this flag and decides whether or not to to invalidate the session (if a number of seconds/minutes have elapsed) There are/maybe security implications with this method that may mean it's just not worth it... You can use LocalStorage, SessionStorage and window.name etc to store/ read the flag... Cheers, Dave On Jul 9, 2:29 pm, Stefan Bachert stefanbach...@yahoo.de wrote: Hi, from times to times this questions comes up. The user has the control over the browser, not javascript over the browser or the user. And this is a good idea because of security. Developers and customers must accept that there is no control over F5/ Refresh. The same is true for power off ;-) This is no problem when all data is send as soon as possible to the server. Stefan Bacherthttp://gwtworld.de On 9 Jul., 02:01, SanjeevG sanjeev.g...@gmail.com wrote: Hi, I am working on an application that uses GWT 2.0.3 and GXT 2.2.0. I have implemented the onClose method of the CloseHandler to terminate the session on browser close, however this is causing an obvious problem of terminating the session on browser refresh as well. Can someone put some ideas on how to detect the browser refresh and avoid the RPC call that causes the session termination. Thanks. Sanjeev. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT adoption
The majority of what GWT can do can be done by a good web developer/ designer... but what GWT is good at is all the compile time optimisations - when you're trying to squeeze every last bit of performance out of of your app... and if you only/have to write Java. It is a crutch IMHO, probably quite a good one though ;o) - but a crutch no less. On Jul 12, 2:57 pm, nino ekambi jazzmatad...@googlemail.com wrote: For me i think GWT is the future. It s just a genius way to write desktop type web application. 2010/7/9 mk munna.kaka.ch...@gmail.com Do you guys think that GWT will the most widely used framework in future ( or there will be mix of other frameworks in future. If yes than which frameworks). I am little worried that why GWT is not adopted at a rate I would have thought for last 4 yrs. why why... -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Button embedded in a rich text area
RichTextArea rt = new RichTextArea();
rt.addMouseDownHandler(new MouseDownHandler() {
@Override
public void onMouseDown(MouseDownEvent event) {
Window.alert(MouseDown!);
Window.alert( +
event.getNativeEvent().getEventTarget());
}
});
rt.setHTML(h1Test/h1pinput type=\button\ name=\name\
value=\+\/p);
Appears to work.
Cheers,
Dave
On Jul 12, 1:34 pm, Jan jan.morl...@googlemail.com wrote:
Hi,
I am using a GWT RichTextArea. The html code it displays contains also
some buttons. Here is a simplified example:
div
h1Test/h1
pinput type=button name=name value=+/p
/div
Is there a way to connect the pressing of this button with a gwt
event?
Thanks for your help
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ImageResource Sprites and RepeatStyle.Horizontal/Vertical generating massive images
Hello, This is really just a heads up... We are currently developing a large/complex GWT app and are making use of ClientBundle, CssResource and ImageResource. We've run into an issue where by GWT is generating massive sprite images (for instance one is 163,000 x 300 pixels) - which obviously causes memory problems in the compiler, dev mode and in browsers tyring to load/render this image. There is something specific about our Widget/CSS structure that is causing GWT to do this - we haven't found out what it is yet (we have widgets that nest HorizontalPanel/VerticalPanel/FlowPanel/ScrollPanel and some are positioned absolutely and some are relative etc, etc). Does anyone know if there is any debug that can be turned on (in the compiler) that maybe hints at what is wrong? Or has anyone come across this problem before? I was going to submit a bug, but until I can find out what causes this there isn't any point doing that. Cheers, Dave -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: ImageResource Sprites and RepeatStyle.Horizontal/Vertical generating massive images
No, forgot about those (I check them)... but I have some more info now... I can trigger the big sprites by changing the size of the image (thats repeated) e.g. image 62 x 60 px triggers big sprite image 500 x 60 px no big sprite... On Jul 9, 1:02 pm, Frederic Conrotte frederic.conro...@gmail.com wrote: Did you check your Compile reports ? http://code.google.com/webtoolkit/release-notes.html#Release_Notes_2_... On Jul 9, 1:55 pm, DaveC david.andrew.chap...@googlemail.com wrote: Hello, This is really just a heads up... We are currently developing a large/complex GWT app and are making use of ClientBundle, CssResource and ImageResource. We've run into an issue where by GWT is generating massive sprite images (for instance one is 163,000 x 300 pixels) - which obviously causes memory problems in the compiler, dev mode and in browsers tyring to load/render this image. There is something specific about our Widget/CSS structure that is causing GWT to do this - we haven't found out what it is yet (we have widgets that nest HorizontalPanel/VerticalPanel/FlowPanel/ScrollPanel and some are positioned absolutely and some are relative etc, etc). Does anyone know if there is any debug that can be turned on (in the compiler) that maybe hints at what is wrong? Or has anyone come across this problem before? I was going to submit a bug, but until I can find out what causes this there isn't any point doing that. Cheers, Dave -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: ImageResource Sprites and RepeatStyle.Horizontal/Vertical generating massive images
Checked the compile report, but I can't seem to find where it references (if it even does) the generated ImageResourceBundles... On Jul 9, 1:58 pm, DaveC david.andrew.chap...@googlemail.com wrote: No, forgot about those (I check them)... but I have some more info now... I can trigger the big sprites by changing the size of the image (thats repeated) e.g. image 62 x 60 px triggers big sprite image 500 x 60 px no big sprite... On Jul 9, 1:02 pm, Frederic Conrotte frederic.conro...@gmail.com wrote: Did you check your Compile reports ? http://code.google.com/webtoolkit/release-notes.html#Release_Notes_2_... On Jul 9, 1:55 pm, DaveC david.andrew.chap...@googlemail.com wrote: Hello, This is really just a heads up... We are currently developing a large/complex GWT app and are making use of ClientBundle, CssResource and ImageResource. We've run into an issue where by GWT is generating massive sprite images (for instance one is 163,000 x 300 pixels) - which obviously causes memory problems in the compiler, dev mode and in browsers tyring to load/render this image. There is something specific about our Widget/CSS structure that is causing GWT to do this - we haven't found out what it is yet (we have widgets that nest HorizontalPanel/VerticalPanel/FlowPanel/ScrollPanel and some are positioned absolutely and some are relative etc, etc). Does anyone know if there is any debug that can be turned on (in the compiler) that maybe hints at what is wrong? Or has anyone come across this problem before? I was going to submit a bug, but until I can find out what causes this there isn't any point doing that. Cheers, Dave -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: ImageResource Sprites and RepeatStyle.Horizontal/Vertical generating massive images
Yeh, we were seeing browser memory usage jump from about 40Mb to over 300Mb. We already split images/resources up (into modules/plugins with specific functionality e.g. Search, RSSFeed, AppFramework etc, etc) - for example in one bundle there are 17 images (9 of those are for a DecoratorPanel, 5 are icons) and one css file. Four of those images have the RepeatStyle.Horizontal attribute. For example, when one of the tiled images is 62x60px the sprite ends up being 163000 px wide when I change it to 500x60px it leaves it out of the sprite... but the sprite still ends up being over 5000px wide - still unnecessarily wide. Is there no way I can tell the compiler don't make a sprite wider than 500px? Thanks for the replys btw. Cheers, Dave On Jul 9, 2:35 pm, Stefan Bachert stefanbach...@yahoo.de wrote: Hi Dave, 163000x300 pixel is extreme. I see two causes a) you have such a lot images. Than I would try for splitting up the ClientBundle b) GWT has a bug which causes huge images as a result. Maybe a) puts the compiler in a more stable state Stefan Bacherthttp://gwtworld.de On 9 Jul., 13:55, DaveC david.andrew.chap...@googlemail.com wrote: Hello, This is really just a heads up... We are currently developing a large/complex GWT app and are making use of ClientBundle, CssResource and ImageResource. We've run into an issue where by GWT is generating massive sprite images (for instance one is 163,000 x 300 pixels) - which obviously causes memory problems in the compiler, dev mode and in browsers tyring to load/render this image. There is something specific about our Widget/CSS structure that is causing GWT to do this - we haven't found out what it is yet (we have widgets that nest HorizontalPanel/VerticalPanel/FlowPanel/ScrollPanel and some are positioned absolutely and some are relative etc, etc). Does anyone know if there is any debug that can be turned on (in the compiler) that maybe hints at what is wrong? Or has anyone come across this problem before? I was going to submit a bug, but until I can find out what causes this there isn't any point doing that. Cheers, Dave -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Why does GWT use UserAgent Sniffing?
@Chris - yes I realise it *might* be a hack but it isn't *really*, e.g. The opera object (in window) Pros: has been around since Opera 5 - it's used mostly by User JavaScript files (http://www.opera.com/browser/tutorials/userjs/specs/ index.dml) is unique to Opera Cons: not part of any standard - so there's no guarantee that Opera will include it in future versions. Conditional compilation (http://msdn.microsoft.com/en-us/library/ 7kx09ct1(VS.80).aspx) Pros: is unique to Trident/JScript Cons: not part of any standard - so there's no guarantee that MS will include it in future versions. watch()/unwatch() methods Pros: is unique to Gecko Cons: not part of any standard - so there's no guarantee that Mozilla/ Gecko will include it in future versions, this has been hi-lighted recently as some JS libraries use another Gecko only method (getBoxObjectFor()) to detect Gecko - which has been removed in FF3.6. Although the user-agent string does have a standard (http:// tools.ietf.org/html/rfc1945#section-10.15 and http://tools.ietf.org/html/rfc2068#section-14.42) they differ (Http 1.0 doesn't have to have a user-agent field where as http 1.1 does)... they are also quite ambiguous I especially like... By convention, the product tokens are listed in order of their significance for identifying the application. User-Agent = User-Agent : 1*( product | comment ) Example: User-Agent: CERN-LineMode/2.15 libwww/2.17b3 IE7 - Mozilla/4.0 (compatible;. FF3.5 - Mozilla/5.0 (Windows;. O9.6 - Mozilla/5.0 (Windows NT 5.1; S4.0 - Mozilla/5.0 (Windows; Therefore according to the specs all the above user-agents are Mozilla with IE being the only version 4.0 - the rest are 5.0...??? WRT content negociation yeh, I understand why/when you need this - but to turn this on it's head why would I want a user to be able to view my application knowing that it will break e.g. Opera pretending to be Firefox? I still stand by my original point, if there is no *good* reason GWT is sniffing the useragent string then it shouldn't do it - it should follow best practise. It almost does - in that in detecting IE8 it looks for document.documentMode (which is a proprietry MS property... not part of any standard - so there's no guarantee... etc, etc) rather than looking for MSIE8 and/or Trident/4.0??? Perhaps the UA string should be (unchangable) in the format Engine/ Version UserAgent/Version OS Locale e.g. Webkit/542.45+Safari/ 4.05+OSX 10.05.6+en_gb - but thats another bag of worms... Cheers, Dave On 25 Feb, 19:17, Chris Lercher cl_for_mail...@gmx.net wrote: Well... I don't know if this will really be more reliable - to be honest, it looks a little bit like a very, very dirty hack ;-) At least, I can't look at it and without knowing a lot of details about all existing browser versions ever, understand what this does. If there was something like document.browserInfo.product, document.browserInfo.majorVersion, ... (similar to JDBC's java.sql.DatabaseMetaData), then this could be a different discussion. However, even then I might still use the user agent string BTW, for the reasons I explained above: Think of the user agent string as a form of content negotiation, which can be influenced by the user if they want to. To make an analogy: If I go to pt.wikipedia.org, then I want the Portuguese version, no matter what the locale of my user agent is. I understand your decision, if your site really must ignore such a user setting. I also agree, that user agent strings should ideally be less ambiguous. So if I ever run into a situation, where the user agent string isn't enough to decide, I might actually fall back to your test - so I'll keep it bookmarked :-) Chris On Feb 25, 7:22 pm, mmoossen mmoos...@gmail.com wrote: thanks dave for sharing :) i think i will start using your code for browser identification Michael On Feb 25, 10:44 am, DaveC david.andrew.chap...@googlemail.com wrote: Thanks for all the replies. Thomas, I get your point - but I don't agree ;o), I think there are more reliable ways for testing... here's something I've used in the past: script var isPresto = !!(window.opera); // The opera object/property has been in existance since version 5 (I think) and is consistent regardless of changes to the UA string. var isTrident = /*...@cc_on!@*/false; // Or use !!(document.expando document.uniqueId) if you don't *like* conditional compliation var isGecko = !!(document.watch); var isWebkit = !!(!isPresto !isTrident !isGecko document.evaluate document.querySelector); var ie8 = !!(isTrident document.documentMode = 8); var ie87 = !!(isTrident document.documentMode === 7); var ie8q = !!(isTrident document.documentMode === 5); var ie7 = !!(isTrident document.documentElement.currentStyle.maxWidth !== undefined
Re: Why does GWT use UserAgent Sniffing?
I think we're going to have to agree to disagree!!! One of the first GWT apps/websites I saw was https://studyblue.com/ now I have to be honest loading 1.5Mb in 60 odd http requests didn't/ doesn't exactly make me think Wow!! That GWT thing must be amazing! - granted it *might* not all be GWT's fault... anyway... the company I work for chose GWT and I'm now building apps using it... but still after using ClientBundle and CssResource my relatively simple app weights in at 720Kb and about 20 http requests. I think CSS Hacks are bad too (see my comment above ...they [browser vendors] fix a bug that developers had built logic on.). I also think browser sniffing is bad too - see above ;o) Sometimes both are necessary. would see GWT as absolutely appropriate for building public facing websites/applications, because it provides a lot of advantages compared to other web frameworks. To that I would say what about accessibility, SEO, Mobile Browsers, browers that predate IE6, people on slow connections and/or slow computers/devices, what about UAs that aren't JS capable or users that have it turned off... etc, etc. What about : http://www.w3.org/Consortium/mission Web for All The social value of the Web is that it enables human communication, commerce, and opportunities to share knowledge. One of W3C's primary goals is to make these benefits available to all people, whatever their hardware, software, network infrastructure, native language, culture, geographical location, or physical or mental ability. IMHO/experience the best way of building *really good* web applications is a team with the right mix of skills ((UX) Designers, front end engineers, web developers, programmers etc...) and start with the lowest common denominator (HTML) - unfortunately I am one *web guy* amongst 30+ Java devs, hence the GWT choice (used to be Echo2)... GWT et al is a compromise - (don't get me wrong I think what the compiler does is amazing...). I think this has probably gone way off topic! Cheers, Dave On 1 Mar, 15:03, Chris Lercher cl_for_mail...@gmx.net wrote: Hi Dave, I agree that it will depend on the requirements for your site. Still, I would see GWT as absolutely appropriate for building public facing websites/applications, because it provides a lot of advantages compared to other web frameworks. And I would hope that it will continue to work (mostly) with all future, CSS 2.1 compliant browsers (plus the bunch of legacy browsers that are also supported by GWT). So if one year from now, e.g. the Apache foundation were to release a completely new browser (Apachium maybe?), which is 100% standards compliant, it really shouldn't be impossible to make that browser render a page, because the page insists on presenting its Firefox version (so at least we should make sure that the algorithm - whichever is chosen - will fall back to the most standards compliant version). But we could discuss this forever - maybe a different argument might convince you: I generally believe that browser CSS-Hacks etc are a bad idea, and that it should be decided on the server, which version to serve. This should also be true for non-GWT sites. Now, not every non-GWT page will have the luxury of making one round-trip (first determining the browser version on the client, sending the result to the server and only then sending the actual content). So these sites will only be able to read the user agent string (because the client already sends this on its first request). If that wasn't enough for them to determine the browser, they'd again have to fall back to submitting pages that contain inline hacks. Therefore, the user agent string has to be enough to determine the browser anyway. If it wasn't anymore, that HTTP header would become more and more useless, until we'd all have to either use hacks, or be forced to make one round-trip. Cheers Chris On Mar 1, 2:55 pm, DaveC david.andrew.chap...@googlemail.com wrote: Hi Chris, yeh I think we're on the same page but... ;o) ... *Here* we're talking about GWT not about the public facing web so... ... e.g. I'd like to be able to view the pages also with Konqueror (whose KHTML engine is BTW is not so similar to WebKit browsers anymore). It may work best when the browser sends me the Firefox version, or it may work best with the Webkit version. I'll want to decide that as a user, because the site owner won't care about Konqueror. The same is true for any completely new browser that may be released in the future - if the site isn't maintained anymore, or the site owner doesn't care, I will be unable to view it, although I could view it, if only I could retrieve the site for example in the WebKit version. ... (for the public facing web) here's where browser detection fails - and feature detection + progressive enhancement wins. The same is true for any completely new browser that may be released in the future
Re: How to provide a local css resource file with a Module
What about using ClientBundle and CssResource? http://code.google.com/webtoolkit/doc/latest/DevGuideClientBundle.html http://code.google.com/webtoolkit/doc/latest/DevGuideClientBundle.html#CssResource Cheers, Dave On Feb 23, 7:49 am, Ashar Lohmar asharloh...@gmail.com wrote: you should put the css in a folder named public inside your module package, the folder should be on the same level as the client folder there's no need for the stylesheet src='Music.css' / specification on the .gwt.xml file you could take a look at the GWT-Upload library it has same situation, their jar contains gwt module with no entry point and css that contains the css-classes for their widgets. good luck On Feb 22, 9:20 pm, Ashish Khivesara ashish.khives...@gmail.com wrote: Any one with a solution for this issue? I even tried using UiBinder and css in conjunction to solve this issue but have not been able to. Any direction would be helpful. Thanks Ashish On Fri, Feb 19, 2010 at 5:52 PM, Ashish Khivesara ashish.khives...@gmail.com wrote: This looks like a bug. Issue: If a module without a entry point includes a stylesheet element then the path is considered to be relative to the module that may inherit it. This make it rigid and thereby adds a dependency between the inheriting module. In my case Music module had this line in the Music.gwt.xml stylesheet src='Music.css' / Now Home module inherits Music modules. But GWT instead of looking for /music/Music.css, looks for the css resource in /home/Music.css [WARN] 404 - GET /home/Music.css (127.0.0.1) 1400 bytes On Fri, Feb 19, 2010 at 5:31 PM, Ashish Khivesara ashish.khives...@gmail.com wrote: Well the issue here would maybe because the module here in question does not an Entry point and hence there is no hostpage to inject this css reference into. So this there a way to make sure the inheriting module injects this stylesheet in its host page?? Thanks Ashish On Fri, Feb 19, 2010 at 5:18 PM, Ashish Khivesara ashish.khives...@gmail.com wrote: I need to associate a local css resource file with a module. This module does not have Entry point hence I cannot simply import it in the html. Here is what I did I added this line in my Music.gwt.xml stylesheet src='Music.css' / Music.css resides in the war/ directory Now I inherit this module in another Module. However the css resource does not seem to be attached / downloaded. Any pointers? Thanks Ashish -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Why does GWT use UserAgent Sniffing?
So perhaps your question ought to be why GWT uses the user agent to put the browser into its 6 categories rather than using browser capability detection to put them into the same 6 categories. E... isn't that what I asked? So my question is NOT- why do we have deferred binding or why does gwt test for different browser platforms BUT: Why does gwt parse the useragent string rather than using object/ feature detection - due to the fragility of sniffing the ua string? On Feb 23, 11:00 am, Paul Robinson ukcue...@gmail.com wrote: DaveC wrote: Gal, I'm not sure what you mean by this: You can write your own properties detection to do it. But can't you see the what you are telling means compile 100+ different versions of the page if you evaluate individual properties? The way gwt do it give you 6 versions only, one for each browser... If GWT were to check for browser capabilities instead of the user agent, it would have many variables, in terms of all the things the browser does and does not support. You can't implement deferred binding for each of them because you'd end up with an awful lot of permutations in your compile, making it take much, much longer. So even if GWT were to do it this way, it would have to use the detection to identify the type of browser into the same (or similar) 6 categories it does now with user agent so it can keep the number of permutations small. So perhaps your question ought to be why GWT uses the user agent to put the browser into its 6 categories rather than using browser capability detection to put them into the same 6 categories. Paul -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Why does GWT use UserAgent Sniffing?
It's *generally* considered by the web development community that useragent sniffing is bad and object/feature detection is good... why then does GWT sniff the useragent? Can anyone explain why - is there a benefit?? Cheers, Dave -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Why does GWT use UserAgent Sniffing?
Thanks for the reply Martin,
OK, I think you maybe misunderstood my question though.
I understand what Deferred Binding is and why it's a good thing - what
I wanted to know was why does GWT sniff use the navigator.useragent
string e.g.
var ua = navigator.userAgent.toLowerCase();
if (ua.indexOf(opera) != -1) {
return opera;
} else if (ua.indexOf(webkit) != -1) {
return safari;
} else if (ua.indexOf(msie) != -1) {
if (document.documentMode = 8) {
return ie8;
} else {
var result = /msie ([0-9]+)\.([0-9]+)/.exec(ua);
etc, etc...
when it's well documented/considered best practise to not sniff the
useragent string because browsers can lie...?
Cheers,
Dave
On Feb 22, 1:37 pm, Martin Trummer martin.trum...@24act.at wrote:
because it's much
better:http://code.google.com/intl/de-DE/webtoolkit/doc/latest/DevGuideCodin...
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Re: Is there a best practice for compiling multiple modules?
The only thing I could suggest is outlined here http://code.google.com/webtoolkit/doc/latest/FAQ_DebuggingAndCompiling.html#Can_I_speed_up_the_GWT_compiler? (but you've probably already looked at this...) Sorry I can't be more help - it has got me thinking though, where I work will probably run into the same problem in the (near) future. Cheers, Dave On Feb 19, 12:47 am, JimmyJoe skwee...@gmail.com wrote: I appear to be in a rare situation with regard to GWT use: my team has dozens of independent GWT modules and our compile times are rising as we add more modules. A couple years back the company I work for decided to switch to GWT for new product development. We have a SaaS portal that has dozens of legacy applications written in JSPs, so this was a big change for us. Now that we do all new development in GWT, we are developing all new products as separate modules, each of which is hosted in its own JSP (to take advantage of all our legacy code there, punt on some development costs, etc.). They fit in with our existing code very well. Long story short, we now find ourselves with upwards of 20 modules and climbing, and our complete build times are getting extraordinarily long. Here's a little more info: Many of our modules are built on a common framework which is its own module sans entrypoint. Often a module will consist of a single page of functionality distinct from other features in our product suite -- for instance setting org preferences, searching for emails, etc. Some of the modules could be combined, such as administration modules; my concern with that approach is that we're still using GWT 1.7 and don't have code splitting to keep our performance numbers good if we go that direction. Regardless of that special case, however, we will eventually have dozens of large(-ish?), complex GWT modules that need to be regularly compile. Even with Ant's parallel and GWT's localWorkers we are already seeing significantly extended compile times. Our current approach for single product development is to comment out all the modules that are not under development (Google's own best practice, as far as I have heard), and we are using development mode extensively, which obviously removes the need to compile the GWT code often. We also do no internationalization or localization. What are your thoughts? Is there a good way to manage a large number of modules and keep compile times down? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: How to write a simple overlay implementation?
Your create method is returning an Element - not an SVGPanel...
I'd personally start with a Widget (not a JavascriptObject) and use
GWT DOM methods (these will be optimised for each of the supported
browsers)... I have the same problem as you - going from a JS world to
a GWT/Java world sometimes seems (or is) over complicated...
Cheers,
Dave
On Jan 25, 7:22 pm, markww mar...@gmail.com wrote:
Hi,
I'd like to make some really simple overlay classes in GWT to wrap
some SVG stuff. I'd basically like to get a rectangle drawn, this is
how I do it in javascript:
var svg = document.createElementNS('http://www.w3.org/2000/svg',
'svg');
svg.setAttribute('width', '100%');
svg.setAttribute('height', '100%');
document.body.appendChild(svg);
var rect = document.createElementNS('http://www.w3.org/2000/
svg','rect');
rect.setAttribute(width,300);
rect.setAttribute(height,100);
svg.appendChild(rect);
and now I'm having trouble translating that to GWT. I was hoping I
could do a really thin overlay around all those calls, something like
this:
public class SVGPanel extends JavaScriptObject {
protected SVGPanel() {}
public static native SVGPanel create(String width, String height) /
*-{
var svg = document.createElementNS('http://www.w3.org/2000/
svg', 'svg');
svg.setAttribute('width', width);
svg.setAttribute('height', height);
return svg;
}-*/;
}
public MyProject implements EntryPoint {
public void onModuleLoad() {
SVGPanel panel = SVGPanel.create(100%, 100%);
Document.get().getBody().appendChild(panel);
}
}
yeah but I do not have a grasp on how we can jump from the javascript
representation of the SVG stuff to GWT java classes. For one, the
SVGPanel class extends JavaScriptObject, but I can't simply add it to
the Document body class because it's expecting an Element type. If
someone could just point out the right way to do that bridge I should
be able to get going after that.
Also, I'm not sure if this the optimal way to incorporate some simple
SVG classes, should I be modeling them using the DOM classes instead
of trying to use JSNI ?
Thanks
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Re: mousemove listener for document?
The way I've done it (I think is):
1. Create a new Class that extends Widget and implements
HasMouseMoveHandlers
2. Grab the RootPanel Element and pass that into your new Class
constructor (the one that takes an Element as a param) - this should
call setElement(Element element) with you passed in element...
You can now add MouseMove handlers to you new Widget...
On Jan 26, 12:49 am, markww mar...@gmail.com wrote:
Hi,
Is there a way to listen for mousemoves on the main document? In
javascript, I usually do this:
window.onload = function() {
document.onmousemove = function(e) {
alert(the mouse was moved!);
};
}
can we add some sort of similar listener in GWT? I'm just not sure
where to start,
Thanks
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Re: mousemove listener for document?
I've run into (perfornance) issues using a NativePreviewHandler as it
will recieve *ALL* events (mouseover/out/move/up/down etc, etc...)
which is why I don't use that method.
On Jan 26, 11:08 am, Fazeel Kazi fazzze...@gmail.com wrote:
Another simpler solution using EventPreview:
Event.addNativePreviewHandler(new Event.NativePreviewHandler()
{
public void onPreviewNativeEvent(NativePreviewEvent foEvent)
{
switch(foEvent.getTypeInt())
{
case Event.ONCLICK: handleClick(foEvent); break;
case Event.ONMOUSEOVER: handleMouseOver(foEvent); break;
}// end switch
}
});
Regards.
On Tue, Jan 26, 2010 at 3:09 PM, DaveC
david.andrew.chap...@googlemail.comwrote:
The way I've done it (I think is):
1. Create a new Class that extends Widget and implements
HasMouseMoveHandlers
2. Grab the RootPanel Element and pass that into your new Class
constructor (the one that takes an Element as a param) - this should
call setElement(Element element) with you passed in element...
You can now add MouseMove handlers to you new Widget...
On Jan 26, 12:49 am, markww mar...@gmail.com wrote:
Hi,
Is there a way to listen for mousemoves on the main document? In
javascript, I usually do this:
window.onload = function() {
document.onmousemove = function(e) {
alert(the mouse was moved!);
};
}
can we add some sort of similar listener in GWT? I'm just not sure
where to start,
Thanks
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Am I using deffered binding correctly?
I'm using deferred binding to separate out some browser specific code. In my *.gwt.xml file I've got a property provider (with a bit of Javascript doing some detection) and a replace-with/when... etc, The deferred binfing works correctly and different browsers are getting different implementations. But when I compile the project, instead of the usual 6 versions (one each for ie6,ie8,gecko,gecko1_8,safari and opera), it compiles 12 - if I add another deferred binding (replace-with/when) it says it's compiling 24!! Is this correct behaviour? Or have I done something wrong? Cheers, Dave -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Deferred binding with an external JavaScript file?
Yeh it's possible - but I'm not sure thats the best way of doing it... (for example I've used it when I have a 'Native' browser implemention and a 'Gears' implementation both implementations extend a default one - which is the one I use in my app code - GWT then replaces this with either a Native implementation or a Gears implementation...) If the js file you're including isn't exposed to GWT then I would say do the include yourself e.g. (in your HTML file) !--[if IE]-- script src=test.js/script !--![endif]-- But by doing it this way you don't get any benefit of the GWT compiler. What *might* be better would be to create a JSNI version of your JS file... But I'm certainly no expert, someone else might have a better idea. Cheers, Dave On Jan 24, 5:56 pm, markww mar...@gmail.com wrote: Hi, I'm trying to do a bit of deferred binding, not sure if this is possible with GWT. I want to use an external js file, only if the browser is Internet Explorer. The deferred binding example I found shows how to load some gwt classes dynamically - I'd like to include this js file dynamically though. Something like: if (browser == 'ie') Use test.js is something like that possible? Thanks -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Am I using deffered binding correctly?
Ah, Thanks Thomas. Unfortunately, what I'm trying to detect is specific to a particular browser version (existence of the HTML5 File API, which at the moment is Firefox 3.6 only), I thought deferred binding was the right solution (everything else gets a Gears implementation) - but I'm not so sure (perhaps it's better to have a single Class that switches between the two implementations?). I had a similar problem with the HTML5 drag and drop - Firefox 3.0 had a non-standard implementation... What do you think is more appropriate, deferred binding or bunging it all in one implementation? Cheers, Dave On Jan 25, 5:34 pm, Thomas Broyer t.bro...@gmail.com wrote: On Jan 25, 3:12 pm, DaveC david.andrew.chap...@googlemail.com wrote: I'm using deferred binding to separate out some browser specific code. In my *.gwt.xml file I've got a property provider (with a bit of Javascript doing some detection) and a replace-with/when... etc, The deferred binfing works correctly and different browsers are getting different implementations. But when I compile the project, instead of the usual 6 versions (one each for ie6,ie8,gecko,gecko1_8,safari and opera), it compiles 12 - if I add another deferred binding (replace-with/when) it says it's compiling 24!! Is this correct behaviour? Or have I done something wrong? Each new property will add a new axis of permutations, so if it can take 2 values it'll double the number of permutations. This is the same behavior than when you add i18n, you'll have 6 (user.agent) times the number of languages your app is translated in (locale, that you'd have extended with extend-property). If you're dealing with browser-specific code, then you'd rather use the existing user.agent property when possible. For instance, I developed a JSON module at work using native JSON.parse/stringify when available and resorting to eval() and JSONObject.toString() otherwise. I didn't introduce a new property but based my code only on the user.agent property. We know that ie6, opera and gecko don't support it, so they'll use the emulated implementation, while ie8 certainly does so it'll use the native impl. And for gecko1_8 and safari, I'm using a fallback impl that tests for native JSON before instantiating one of the emulated or native implementations and delegate to them. Given that they both have a pretty fast JS engine, having all implementations code compiled in isn't really an issue. GWT does the same in some cases where it needs to differentiate between Safari 2 and 3+, (it used to do it in HistoryImpl at least) or IE 6 and 7 (clipped image) -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: HTML5 DND and File Upload...
I've got a little further (or a different error message) - running the compiled code in Firefox 3.6 (as it supports the HTML5 File API) I get the following Javascript Error... _FileReader_handlerManager is undefined - I know nothing about the mechanics of how GWT takes my Java Classes and turns them into Javascript, but I do know that I'm creating the HandlerManager (in the FileReader) as I can debug when I'm attaching the event handlers and the handlerManager is being created and attaching the handler... So can anyone help - as to why the instance of HandlerManager in FileReader is undefined (which I think equates to null in GWT/Java speak)? Cheers, Dave On Jan 21, 4:49 pm, DaveC david.andrew.chap...@googlemail.com wrote: OK, I've have a working implementation in IE, FF and Chrome (using Gears where necessary - GWT 2.0) that allows me to capture when a file is dragged from the desktop and dropped into the browser window. The next part of the puzzle is to grab the file data/content and upload it... grabbing the data is trivial when using the Gears implementation (as Gears creates a Blob as a property of the File - I've implemented my own GWT Gears API as the one on Google Code wasn't compatible with GWT 2). I've created a GWT implementation of the HTML5 File spec (FileList, FileError, File... etc) and have a FileReader that does the reading of the file in browsers that currently support the spec (Firefox 3.6) I've created a bunch of Handlers and Events for the FileReader (loadstart, loadend, progress etc) and I've added a HandlerManager to my FileReader class... and this is where things go wrong... The events come out of the Native (javascript) FileReader which calls (for instance) LoadStartEvent.fire() which gets all the way to the HandlerManager in the FileReader class and then a low level (JS) error is thrown... something like cannot find static it also appears to be not detectecting that (for instance) the event passed in is a LoadStartEvent - it just thinks it's a generic GwtEvent... My question is should I be using HandlerManager? Or is this only supposed to be for Widgets... I cannot believe that something like this is so hard/complicated to do in GWT/Java... when I have a fully working JS version (in a about 20 lines of code) - I'm trying to port to GWT for use inside an Enterprise B2B app... Please, are there any GWT engineers/experts listening that can (at least) point me in the right direction - I realise that there are probably NDAs relating to how to do this in GWT (because of the WAVE Client App) - but just a nod in the right direction would help... My intention is to open source all this once I've got something that works. Cheers, Dave -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: HandlerManager
Just so I know we're talking about the same thing :o) An Blur event will fire when I either tab out of the Widget or when I click somewhere else in the application - is this how you are trying to cause the blur event to fire? (I had the above code working for me in Firefox 3.0/Dev mode GWT 2 - what browser(s) are you viewing this in?) On Jan 21, 6:24 pm, PaulBee pauloabe...@gmail.com wrote: Thank you DaveC, But the BlurHandler doesn't seem to work on the FocusPanel. I've tryed every way of taking the focus away from the panel, and it is just not calling the BLurHandler... -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: My icons are missing
Note the first forward slash in your image url - this points to the
root of your server and not /appname/...
Cheers,
Dave
On Jan 22, 4:41 pm, darkling darkling...@aol.com wrote:
I'm trying to add icons to my application. Everything worked fine when
I ran in the google browser but now that I've published the system to
my dev server (its Sun Application server 9.1) the icons are all
missing. I'm also noticing that any servlets I try to access via HTTP
(FormPanels) rather than RPC also come up as 404s. My RPC servlets
work fine.
The icons I'm trying to access are the grid icons from EXT-GWT which
always worked fine up until now. I packaged up my war and dropped it
into the autodeploy in Glassfish just as I always would but now the
links aren't working. Am I doing something wrong for GWT?
My war structure is
/images
/appName (with all the GWT JS files)
appName.html
gxt-grey.css
gxt-all.css
I'm trying to access
.x-grid3-dirty-cell {
background-image:url(/images/default/grid/dirty.gif);
}
which isn't working.
When I try to input the URL
http://localhost:8080/appName/images/default/grid/dirty.gif
The icon appears.
Can anyone tell me what I'm doing wrong?
Thanks
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HTML5 DND and File Upload...
OK, I've have a working implementation in IE, FF and Chrome (using Gears where necessary - GWT 2.0) that allows me to capture when a file is dragged from the desktop and dropped into the browser window. The next part of the puzzle is to grab the file data/content and upload it... grabbing the data is trivial when using the Gears implementation (as Gears creates a Blob as a property of the File - I've implemented my own GWT Gears API as the one on Google Code wasn't compatible with GWT 2). I've created a GWT implementation of the HTML5 File spec (FileList, FileError, File... etc) and have a FileReader that does the reading of the file in browsers that currently support the spec (Firefox 3.6) I've created a bunch of Handlers and Events for the FileReader (loadstart, loadend, progress etc) and I've added a HandlerManager to my FileReader class... and this is where things go wrong... The events come out of the Native (javascript) FileReader which calls (for instance) LoadStartEvent.fire() which gets all the way to the HandlerManager in the FileReader class and then a low level (JS) error is thrown... something like cannot find static it also appears to be not detectecting that (for instance) the event passed in is a LoadStartEvent - it just thinks it's a generic GwtEvent... My question is should I be using HandlerManager? Or is this only supposed to be for Widgets... I cannot believe that something like this is so hard/complicated to do in GWT/Java... when I have a fully working JS version (in a about 20 lines of code) - I'm trying to port to GWT for use inside an Enterprise B2B app... Please, are there any GWT engineers/experts listening that can (at least) point me in the right direction - I realise that there are probably NDAs relating to how to do this in GWT (because of the WAVE Client App) - but just a nod in the right direction would help... My intention is to open source all this once I've got something that works. Cheers, Dave -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: HandlerManager
Something like...
ListBox box = new ListBox();
box.addItem(Hello);
box.addItem(World!);
final PushButton button = new PushButton(Hidden);
FocusPanel p = new FocusPanel();
p.addFocusHandler(new FocusHandler() {
@Override
public void onFocus(FocusEvent event) {
button.setVisible(true);
}
});
p.addBlurHandler(new BlurHandler() {
@Override
public void onBlur(BlurEvent event) {
button.setVisible(false);
}
});
FlowPanel f = new FlowPanel();
f.add(box);
f.add(button);
p.add(f);
Cheers,
Dave
On Jan 21, 4:54 pm, PaulBee pauloabe...@gmail.com wrote:
I think that would be a good solution but neither FlexTable nor Panel
(be it Horizontal or Vertical) have OnFocus and Blur handlers...
Do you have any container to suggest?
Thank you,
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Re: Injected CSS rules are evaluated after onModuleLoad/Widget#onLoad
Cool, nope I've not noticed any performance issues - I'm in the middle of writing an app (for my employer) that will be shipped as part of a enterprise b2b product at the moment there is about 8 separate stylesheets that are being injected - will probably be at least 10 when finished so any performance issues will become apparent as the dev progresses. Cheers, Dave On Jan 9, 12:28 pm, Sebastian Beigel sebast...@beigel.de wrote: Replacing globalResources.fooCss().ensureInjected(); with StyleInjector.inject(globalResources.fooCss().getText(), true); solves the problem as well! Thanks Dave. In the meanwhile, I wrapped my onModuleLoad code in a DeferredCommand() (mainly for an UncaughtExceptionHandler) and removed the DeferredCommand wrap in Widget#onLoad (as described in my previous post). That also works. Anyway, I use both modifications, deferring the onModuleLoad (mainly for the logger) and ensuring immediate CSS injection -- explicit is better than implicit :) Or do you see any (performance) issues with this approach? Sebastian On Sat, Jan 9, 2010 at 1:25 AM, DaveC david.andrew.chap...@googlemail.com wrote: Have you tried StyleInjector.inject(cssText, true) ...? the DOM will be updated immediately instead of just before returning to the event loop. Using this option excessively will decrease performance, especially if used with an inject-css-on-init coding pattern I had a similar problem using the gwt-fx library (which parses the stylesheets in the DOM looking for selectors I passed in) the styles weren't injected in time. Cheers, Dave On Jan 8, 4:39 pm, Sebastian Beigel sebast...@beigel.de wrote: I found a work around, I wrapped the positioning code in my onLoad() method in a DeferredCommand and it works. Is this the preferred solution for this problem? Sebastian On Fri, Jan 8, 2010 at 4:38 PM, Sebastian Beigel sebast...@beigel.de wrote: Hi, I tried to follow the best practices and moved my static CSS files from style-tags in the HTML-page to CssResources in a ClientBundle declared in my EntryPoint and injected in a static initializer. Unfortunately, this doesn't work for me because I do some element positioning in an onLoad-method of a Widget (which is contained in the UIBinder template of my EntryPoint). The calculations of the (relative) positions are wrong and I found out that the injected CSS rules are not evaluated until my positioning code runs. Profiling the generated JS code shows the following timing: - entering onModuleLoad - entering Widget#onLoad - leaving onLoad - leading onModuleLoad - injecting CSS Tested in Webkit and Firefox 3.5 on a Mac with Snow Leopard. If I defer the positioning (by triggering it manually via a Button click in the UI) everything works as expected. Is this a bug? Is there a work-around? I really don't want to move my CSS back to static files and lose all the great advantages from using ClientBundles. But I need my CSS rules parsed and evaluated *before* my code runs. Thank you, Sebastian -- Sebastian Beigelhttp://beigel.de/sebastian -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group athttp://groups.google.com/group/google-web-toolkit?hl=en. -- Sebastian Beigelhttp://beigel.de/sebastian -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: better place for image
Like wise there wasn't a lot I needed to adjust when I moved from 1.7
to 2.0...
Cheers,
Dave
On Jan 8, 5:35 pm, Thad thad.humphr...@gmail.com wrote:
If it's any help, I found moving from 1.7 to 2.0 a **lot** less effort
than moving from 1.4 to 1.5. In fact, it was trivial by comparison.
On Jan 8, 11:46 am, ale aleee...@gmail.com wrote:
Thanks for the answer, I will try your example.
I'm a little afraid to upgrade to gwt 2.0, because I have a lot of
pages developed with 1.7 ...
and the idea of rewrite a lot of code now...
Cheers
Ale
On Jan 8, 3:06 pm, DaveC david.andrew.chap...@googlemail.com wrote:
I use ClientBundle (and CssResource) (I'm using GWT 2 by the way...)
e.g.
public interface RichToolTipClientBundle extends ClientBundle {
@Source(resources/css/rich-tooltip.css)
public RichToolTipCssResource getCss();
@Source(resources/img/logo.png)
public ImageResource getLogo();
@Source(resources/img/tooltip-top-left.png)
@ImageOptions(repeatStyle = RepeatStyle.None)
public ImageResource tooltipTopLeft();
public interface RichToolTipCssResource extends CssResource {
@ClassName(tooltip)
String getToolTipStyleName();
}
}
public class RichToolTipResources {
private static RichToolTipClientBundle INSTANCE;
public static final RichToolTipClientBundle getBundle() {
if (INSTANCE == null) {
INSTANCE = GWT.create(RichToolTipClientBundle.class);
INSTANCE.getCss().ensureInjected();
// or StyleInjector.inject(INSTANCE.getCss().getText(),
true);
}
return INSTANCE;
}
}
In your css...
@sprite .tooltip {
gwt-image: 'tooltipTopLeft';
}
then:
public ToolTip extends Composite {
// injects the css...
private RichToolTipClientBundle resources =
RichToolTipResources.getBundle();
public ToolTip() {
FlowPanel panel = new FlowPanel();
initWidget(panel);
addStyleName(resources.getCss().getToolTipStyleName());
Image img = new Image(resources.getLogo());
panel.add(img);
}
}
Using these methods makes use of the GWT compiler and all it clever
optimisation such as inlining the images using data-uris when
supported... which help make the page load faster.
Hope this helps,
Cheers,
Dave
On Jan 8, 9:03 am, ale aleee...@gmail.com wrote:
Hi,
I can not decide where put some image in a application, image like
logo, icon for button, ecc.
Is better put it in css or use the ImageBundle and
AbstractImagePrototype?
I prefer the solution that make the load of the page faster.
Thanks!
Bye
Alessandro
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Re: better place for image
I use ClientBundle (and CssResource) (I'm using GWT 2 by the way...)
e.g.
public interface RichToolTipClientBundle extends ClientBundle {
@Source(resources/css/rich-tooltip.css)
public RichToolTipCssResource getCss();
@Source(resources/img/logo.png)
public ImageResource getLogo();
@Source(resources/img/tooltip-top-left.png)
@ImageOptions(repeatStyle = RepeatStyle.None)
public ImageResource tooltipTopLeft();
public interface RichToolTipCssResource extends CssResource {
@ClassName(tooltip)
String getToolTipStyleName();
}
}
public class RichToolTipResources {
private static RichToolTipClientBundle INSTANCE;
public static final RichToolTipClientBundle getBundle() {
if (INSTANCE == null) {
INSTANCE = GWT.create(RichToolTipClientBundle.class);
INSTANCE.getCss().ensureInjected();
// or StyleInjector.inject(INSTANCE.getCss().getText(),
true);
}
return INSTANCE;
}
}
In your css...
@sprite .tooltip {
gwt-image: 'tooltipTopLeft';
}
then:
public ToolTip extends Composite {
// injects the css...
private RichToolTipClientBundle resources =
RichToolTipResources.getBundle();
public ToolTip() {
FlowPanel panel = new FlowPanel();
initWidget(panel);
addStyleName(resources.getCss().getToolTipStyleName());
Image img = new Image(resources.getLogo());
panel.add(img);
}
}
Using these methods makes use of the GWT compiler and all it clever
optimisation such as inlining the images using data-uris when
supported... which help make the page load faster.
Hope this helps,
Cheers,
Dave
On Jan 8, 9:03 am, ale aleee...@gmail.com wrote:
Hi,
I can not decide where put some image in a application, image like
logo, icon for button, ecc.
Is better put it in css or use the ImageBundle and
AbstractImagePrototype?
I prefer the solution that make the load of the page faster.
Thanks!
Bye
Alessandro
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Re: Clone a widget using DOM.clone ?
public class ClonedWidget extends Widget {
public ClonedWidget(Element element) {
setElement(element);
}
}
ClonedWidget myNewWidget = new ClonedWidget(Dom.clone(elementToClone,
true));
Is that the kind of thing you're looking for?
Cheers,
Dave
On Jan 8, 12:07 am, Michael Dausmann mdausm...@gmail.com wrote:
I wish to programatically clone a widget. Dom.clone(... allows me to
retrieve an Element. Is it possible to create a new widget around
this Element? Is there another way of cloning the Widget?
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Re: Injected CSS rules are evaluated after onModuleLoad/Widget#onLoad
Have you tried StyleInjector.inject(cssText, true) ...? the DOM will be updated immediately instead of just before returning to the event loop. Using this option excessively will decrease performance, especially if used with an inject-css-on-init coding pattern I had a similar problem using the gwt-fx library (which parses the stylesheets in the DOM looking for selectors I passed in) the styles weren't injected in time. Cheers, Dave On Jan 8, 4:39 pm, Sebastian Beigel sebast...@beigel.de wrote: I found a work around, I wrapped the positioning code in my onLoad() method in a DeferredCommand and it works. Is this the preferred solution for this problem? Sebastian On Fri, Jan 8, 2010 at 4:38 PM, Sebastian Beigel sebast...@beigel.de wrote: Hi, I tried to follow the best practices and moved my static CSS files from style-tags in the HTML-page to CssResources in a ClientBundle declared in my EntryPoint and injected in a static initializer. Unfortunately, this doesn't work for me because I do some element positioning in an onLoad-method of a Widget (which is contained in the UIBinder template of my EntryPoint). The calculations of the (relative) positions are wrong and I found out that the injected CSS rules are not evaluated until my positioning code runs. Profiling the generated JS code shows the following timing: - entering onModuleLoad - entering Widget#onLoad - leaving onLoad - leading onModuleLoad - injecting CSS Tested in Webkit and Firefox 3.5 on a Mac with Snow Leopard. If I defer the positioning (by triggering it manually via a Button click in the UI) everything works as expected. Is this a bug? Is there a work-around? I really don't want to move my CSS back to static files and lose all the great advantages from using ClientBundles. But I need my CSS rules parsed and evaluated *before* my code runs. Thank you, Sebastian -- Sebastian Beigelhttp://beigel.de/sebastian -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Trying to Implement HTML5 Drag And Drop API
OK,
So far I have a working implementation in Firefox 3.0 - 3.6 (using
Gears for 3.6) and Chrome which allows me to capture (and inspect) a
file when it's dragged from the desktop and dropped into the browser.
I'm now trying to get an implementation working in IE (using Gears) -
but I feel a bit like Alice tumbling down the rabbit hole...
I've followed the same process (which seems quite complex, and long
winded) for the Chrome and Mozilla implementations...
1. Create a new DOMImplIE6.class...
2. Create HasDropTargetHandlers, DropEvent, DropHandler etc, etc...
But the events don't appear to be fired (at the DOMImpl... level) they
get to here:
private native void sinkHtml5Events(Element elem, int bits) /*-{
var chMask = (elem.__eventBits || 0) ^ bits;
elem.__eventBits = bits;
if (!chMask) return;
chMask is always falsey...
Should I even be having to fiddle with what appears to be quite low
level stuff...?
Can anyone help (I know Wave implemented DND from desktop to browser
using GWT - so it must be possible).
Cheers,
Dave
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Re: DOMImpl for iPhone: How to do ?
Ah, cool thanks - I've done all that just didn't put the MyDomImpl in
com.google.gwt.user.client.impl...
Cheers,
Dave
On Dec 31, 1:15 am, fvisticot fvisti...@gmail.com wrote:
Hello,
I have worked on the pb and i have made some progress !!!
1. I have overloaded the DOMImpl class. The new overloaded class must
be in a package named com.google.gwt.user.client.impl
2. I have created dedicated events (extending DomEvent)
3. I have created dedicated handlers (extending EventHandler)
4. I have created dedicated HasHandlers
5. In my module file i have added:
replace-with class=com.google.gwt.user.client.impl.MyDomImpl
when-type-is class=com.google.gwt.user.client.impl.DOMImpl/
when-property-is name=user.agent value=safari/
/replace-with
6. I have created a new Widget implementing the
public HandlerRegistration addYourHandler(YourHandler handler) {
return addDomHandler(handler, YourEvent.getType());
}
7. My application create the new widget and call the
addYourHandler...
... and it works perfectly...
Hope it can help...
On 31 déc, 01:28, DaveC david.andrew.chap...@googlemail.com wrote:
It seems I'm trying to do the same
thinghttp://groups.google.com/group/google-web-toolkit/browse_thread/threa..
and have come up against the same barriers.
If I find the answer I'll let you know.
Cheers,
Dave
On Dec 30, 10:23 pm, fvisticot fvisti...@gmail.com wrote:
I would like to manage the iPhone touchstart touchmove... events with
a clean solution.
It seems that i need to create my own DOMImpl for the iPhone and link
this new DOMImpl to the iPhone userAgent.
Do i need to recompile the GWT sources for that ?
It seems that i can not override the DOMImplSafari...so it seems that
a re-compilation is required...
I there a document/tuto with the differents mandatory steps to create
a new DOMImpl ?
Is there a list of class to implement when adding a new DOMImpl ?
(DOMImpl, UserAgent.gwt.xml, Creating new DomEvent...)
Is there allready a DOMImplIphone implementation (GoogleWave is
available on the iPhonepearhaps are they using a dedicated
implementation) ??
Fred.
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Re: DOMImpl for iPhone: How to do ?
Tried to rename the package, but I get an error and a warning:
Error: Method 'eventGetTypeInt(String)' in type
'com.applegreen.gwt.html5.dom.DOMImplMozillaHtml5' is native. Running
the modified program will cause UnsatisfiedLinkError.
Warn: Package 'com.google.gwt.user.client.impl' already exists in this
project in a folder
I guess if I downloaded the GWT source doing this would be straight
forward but I can't do that for this project... I need to stick with
the (2.0) release.
Any other suggestions?
On Dec 31, 9:26 am, DaveC david.andrew.chap...@googlemail.com wrote:
Ah, cool thanks - I've done all that just didn't put the MyDomImpl in
com.google.gwt.user.client.impl...
Cheers,
Dave
On Dec 31, 1:15 am, fvisticot fvisti...@gmail.com wrote:
Hello,
I have worked on the pb and i have made some progress !!!
1. I have overloaded the DOMImpl class. The new overloaded class must
be in a package named com.google.gwt.user.client.impl
2. I have created dedicated events (extending DomEvent)
3. I have created dedicated handlers (extending EventHandler)
4. I have created dedicated HasHandlers
5. In my module file i have added:
replace-with class=com.google.gwt.user.client.impl.MyDomImpl
when-type-is class=com.google.gwt.user.client.impl.DOMImpl/
when-property-is name=user.agent value=safari/
/replace-with
6. I have created a new Widget implementing the
public HandlerRegistration addYourHandler(YourHandler handler) {
return addDomHandler(handler, YourEvent.getType());
}
7. My application create the new widget and call the
addYourHandler...
... and it works perfectly...
Hope it can help...
On 31 déc, 01:28, DaveC david.andrew.chap...@googlemail.com wrote:
It seems I'm trying to do the same
thinghttp://groups.google.com/group/google-web-toolkit/browse_thread/threa..
and have come up against the same barriers.
If I find the answer I'll let you know.
Cheers,
Dave
On Dec 30, 10:23 pm, fvisticot fvisti...@gmail.com wrote:
I would like to manage the iPhone touchstart touchmove... events with
a clean solution.
It seems that i need to create my own DOMImpl for the iPhone and link
this new DOMImpl to the iPhone userAgent.
Do i need to recompile the GWT sources for that ?
It seems that i can not override the DOMImplSafari...so it seems that
a re-compilation is required...
I there a document/tuto with the differents mandatory steps to create
a new DOMImpl ?
Is there a list of class to implement when adding a new DOMImpl ?
(DOMImpl, UserAgent.gwt.xml, Creating new DomEvent...)
Is there allready a DOMImplIphone implementation (GoogleWave is
available on the iPhonepearhaps are they using a dedicated
implementation) ??
Fred.
--
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To post to this group, send email to google-web-tool...@googlegroups.com.
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Re: DOMImpl for iPhone: How to do ?
Ignored those warnings/errors and renamed anyway it it compiled/runs
in hosted mode fine...
The only problem is that the events aren't being captured (or the
handlers aren't being added correctly)... would you be able to post
one of your Event classes?
Cheers,
DaveC
On Dec 31, 1:45 pm, DaveC david.andrew.chap...@googlemail.com wrote:
Tried to rename the package, but I get an error and a warning:
Error: Method 'eventGetTypeInt(String)' in type
'com.applegreen.gwt.html5.dom.DOMImplMozillaHtml5' is native. Running
the modified program will cause UnsatisfiedLinkError.
Warn: Package 'com.google.gwt.user.client.impl' already exists in this
project in a folder
I guess if I downloaded the GWT source doing this would be straight
forward but I can't do that for this project... I need to stick with
the (2.0) release.
Any other suggestions?
On Dec 31, 9:26 am, DaveC david.andrew.chap...@googlemail.com wrote:
Ah, cool thanks - I've done all that just didn't put the MyDomImpl in
com.google.gwt.user.client.impl...
Cheers,
Dave
On Dec 31, 1:15 am, fvisticot fvisti...@gmail.com wrote:
Hello,
I have worked on the pb and i have made some progress !!!
1. I have overloaded the DOMImpl class. The new overloaded class must
be in a package named com.google.gwt.user.client.impl
2. I have created dedicated events (extending DomEvent)
3. I have created dedicated handlers (extending EventHandler)
4. I have created dedicated HasHandlers
5. In my module file i have added:
replace-with class=com.google.gwt.user.client.impl.MyDomImpl
when-type-is class=com.google.gwt.user.client.impl.DOMImpl/
when-property-is name=user.agent value=safari/
/replace-with
6. I have created a new Widget implementing the
public HandlerRegistration addYourHandler(YourHandler handler) {
return addDomHandler(handler, YourEvent.getType());
}
7. My application create the new widget and call the
addYourHandler...
... and it works perfectly...
Hope it can help...
On 31 déc, 01:28, DaveC david.andrew.chap...@googlemail.com wrote:
It seems I'm trying to do the same
thinghttp://groups.google.com/group/google-web-toolkit/browse_thread/threa..
and have come up against the same barriers.
If I find the answer I'll let you know.
Cheers,
Dave
On Dec 30, 10:23 pm, fvisticot fvisti...@gmail.com wrote:
I would like to manage the iPhone touchstart touchmove... events with
a clean solution.
It seems that i need to create my own DOMImpl for the iPhone and link
this new DOMImpl to the iPhone userAgent.
Do i need to recompile the GWT sources for that ?
It seems that i can not override the DOMImplSafari...so it seems that
a re-compilation is required...
I there a document/tuto with the differents mandatory steps to create
a new DOMImpl ?
Is there a list of class to implement when adding a new DOMImpl ?
(DOMImpl, UserAgent.gwt.xml, Creating new DomEvent...)
Is there allready a DOMImplIphone implementation (GoogleWave is
available on the iPhonepearhaps are they using a dedicated
implementation) ??
Fred.
--
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Google Web Toolkit group.
To post to this group, send email to google-web-tool...@googlegroups.com.
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Re: DOMImpl for iPhone: How to do ?
..also I override the eventGetTypeInt(String) method in order to add
the html5 drag and drop events, is this what you did?
Cheers,
Dave
On Dec 31, 2:16 pm, DaveC david.andrew.chap...@googlemail.com wrote:
Ignored those warnings/errors and renamed anyway it it compiled/runs
in hosted mode fine...
The only problem is that the events aren't being captured (or the
handlers aren't being added correctly)... would you be able to post
one of your Event classes?
Cheers,
DaveC
On Dec 31, 1:45 pm, DaveC david.andrew.chap...@googlemail.com wrote:
Tried to rename the package, but I get an error and a warning:
Error: Method 'eventGetTypeInt(String)' in type
'com.applegreen.gwt.html5.dom.DOMImplMozillaHtml5' is native. Running
the modified program will cause UnsatisfiedLinkError.
Warn: Package 'com.google.gwt.user.client.impl' already exists in this
project in a folder
I guess if I downloaded the GWT source doing this would be straight
forward but I can't do that for this project... I need to stick with
the (2.0) release.
Any other suggestions?
On Dec 31, 9:26 am, DaveC david.andrew.chap...@googlemail.com wrote:
Ah, cool thanks - I've done all that just didn't put the MyDomImpl in
com.google.gwt.user.client.impl...
Cheers,
Dave
On Dec 31, 1:15 am, fvisticot fvisti...@gmail.com wrote:
Hello,
I have worked on the pb and i have made some progress !!!
1. I have overloaded the DOMImpl class. The new overloaded class must
be in a package named com.google.gwt.user.client.impl
2. I have created dedicated events (extending DomEvent)
3. I have created dedicated handlers (extending EventHandler)
4. I have created dedicated HasHandlers
5. In my module file i have added:
replace-with class=com.google.gwt.user.client.impl.MyDomImpl
when-type-is class=com.google.gwt.user.client.impl.DOMImpl/
when-property-is name=user.agent value=safari/
/replace-with
6. I have created a new Widget implementing the
public HandlerRegistration addYourHandler(YourHandler handler) {
return addDomHandler(handler, YourEvent.getType());
}
7. My application create the new widget and call the
addYourHandler...
... and it works perfectly...
Hope it can help...
On 31 déc, 01:28, DaveC david.andrew.chap...@googlemail.com wrote:
It seems I'm trying to do the same
thinghttp://groups.google.com/group/google-web-toolkit/browse_thread/threa..
and have come up against the same barriers.
If I find the answer I'll let you know.
Cheers,
Dave
On Dec 30, 10:23 pm, fvisticot fvisti...@gmail.com wrote:
I would like to manage the iPhone touchstart touchmove... events
with
a clean solution.
It seems that i need to create my own DOMImpl for the iPhone and
link
this new DOMImpl to the iPhone userAgent.
Do i need to recompile the GWT sources for that ?
It seems that i can not override the DOMImplSafari...so it seems
that
a re-compilation is required...
I there a document/tuto with the differents mandatory steps to
create
a new DOMImpl ?
Is there a list of class to implement when adding a new DOMImpl ?
(DOMImpl, UserAgent.gwt.xml, Creating new DomEvent...)
Is there allready a DOMImplIphone implementation (GoogleWave is
available on the iPhonepearhaps are they using a dedicated
implementation) ??
Fred.
--
You received this message because you are subscribed to the Google Groups
Google Web Toolkit group.
To post to this group, send email to google-web-tool...@googlegroups.com.
To unsubscribe from this group, send email to
google-web-toolkit+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Having Trouble Extending MouseEvent...
OK I've got a little further now: I've create a new DOMImpl... class
and overridden the eventGetTypeInt(String) method. everything compiles/
runs in hosted mode without errors - but no drag/drop events get
captured - it's like they haven't been added...
Here's my DropEvent class...
public class DropEvent extends DomEventDropHandler {
/**
* Event type for drop events. Represents the meta-data associated
with this
* event.
*/
private static final TypeDropHandler TYPE = new TypeDropHandler
(drop,
new DropEvent());
/**
* Gets the event type associated with drop events.
*
* @return the handler type
*/
public static TypeDropHandler getType() {
return TYPE;
}
/**
* Protected constructor, use
* {...@link DomEvent#fireNativeEvent
(com.google.gwt.dom.client.NativeEvent,
com.google.gwt.event.shared.HasHandlers)}
* to fire drop events.
*/
protected DropEvent() {
}
@Override
public TypeDropHandler getAssociatedType() {
return TYPE;
}
@Override
protected void dispatch(DropHandler handler) {
handler.onDrop(this);
}
}
... is there something I'm missing... and my DOMImpl class:
public class DOMImplMozillaHtml5 extends DOMImplMozillaOld {
public native int eventGetTypeInt(String eventType) /*-{
switch (eventType) {
case blur: return 0x01000;
case change: return 0x00400;
case click: return 0x1;
case dblclick: return 0x2;
case focus: return 0x00800;
case keydown: return 0x00080;
case keypress: return 0x00100;
case keyup: return 0x00200;
case load: return 0x08000;
case losecapture: return 0x02000;
case mousedown: return 0x4;
case mousemove: return 0x00040;
case mouseout: return 0x00020;
case mouseover: return 0x00010;
case mouseup: return 0x8;
case scroll: return 0x04000;
case error: return 0x1;
case mousewheel: return 0x2;
case DOMMouseScroll: return 0x2;
case contextmenu: return 0x4;
case paste: return 0x8;
case drop: return 0x1;
case dragdrop: return 0x1;
case dragleave: return 0x1;
case dragover: return 0x1;
case dragenter: return 0x1;
}
}-*/;
}
On Dec 31, 12:24 am, DaveC david.andrew.chap...@googlemail.com
wrote:
OK, From what I have since found out is that *all* the native browser
events are stored in a JSNI method in the DOMImpl class here
DOMImpl.eventGetTypeInt(String name)... which is why the exception was
being thrown (there is no drop, dragenter, etc events defined).
So in order to add the new html5 events I would need to add my own
DOMImpl class... which I can't seem to do... I appear to be trying to
accomplish the same task as the person posting
herehttp://groups.google.com/group/google-web-toolkit/browse_thread/threa...
This doesn't appear to be possible (or at least simple or obvious or
documented)...
Its frustrating for me as I've already written the (few lines of)
javascript code to do this - I'm using GWT for a project so really I
need a GWT implementation...
Do any of the GWT experts have any suggestions??
On Dec 30, 4:24 pm, DaveC david.andrew.chap...@googlemail.com wrote:
I'm probably not doing this the right way but, I've been trying to
extend MouseEvent to support HTML5 Drag and Drop (drag, dragenter,
etc. etc.).
I've created a:
Has...Handlers interface
bunch of Handler classes (DropHandler, DragEnterHandler, etc)
and a bunch of Event classes that extend MouseEvent (DropEvent,
DragEnterEvent, etc).
I've also created a DropTarget Widget that implements the
Has...Handlers interface which accepts a Widget as a param in its
contructor which then calls setElement() passing in widget.getElement
()...
I then add this DropTarget to the RootPanel (for testing purposes) in
an onModuleLoad.
But I'm getting a low level error (Something other than an int was
returned from JSNI method):
com.google.gwt.dev.shell.HostedModeException: Something other than an
int was returned from JSNI method
'@com.google.gwt.user.client.impl.domimpl::eventGetTypeInt(Ljava/lang/
String;)': JS value of type undefined, expected int
at com.google.gwt.dev.shell.JsValueGlue.getIntRange
(JsValueGlue.java:266)
at com.google.gwt.dev.shell.JsValueGlue.get(JsValueGlue.java:144)
at com.google.gwt.dev.shell.ModuleSpace.invokeNativeInt
(ModuleSpace.java:242)
at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeInt
(JavaScriptHost.java:75
Having Trouble Extending MouseEvent...
I'm probably not doing this the right way but, I've been trying to extend MouseEvent to support HTML5 Drag and Drop (drag, dragenter, etc. etc.). I've created a: Has...Handlers interface bunch of Handler classes (DropHandler, DragEnterHandler, etc) and a bunch of Event classes that extend MouseEvent (DropEvent, DragEnterEvent, etc). I've also created a DropTarget Widget that implements the Has...Handlers interface which accepts a Widget as a param in its contructor which then calls setElement() passing in widget.getElement ()... I then add this DropTarget to the RootPanel (for testing purposes) in an onModuleLoad. But I'm getting a low level error (Something other than an int was returned from JSNI method): com.google.gwt.dev.shell.HostedModeException: Something other than an int was returned from JSNI method '@com.google.gwt.user.client.impl.DOMImpl::eventGetTypeInt(Ljava/lang/ String;)': JS value of type undefined, expected int at com.google.gwt.dev.shell.JsValueGlue.getIntRange (JsValueGlue.java:266) at com.google.gwt.dev.shell.JsValueGlue.get(JsValueGlue.java:144) at com.google.gwt.dev.shell.ModuleSpace.invokeNativeInt (ModuleSpace.java:242) at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeInt (JavaScriptHost.java:75) at com.google.gwt.user.client.impl.DOMImpl.eventGetTypeInt (DOMImpl.java) at com.google.gwt.user.client.Event$.getTypeInt(Event.java:491) at com.google.gwt.user.client.ui.Widget.addDomHandler(Widget.java: 184) at com.applegreen.gwt.html5.dnd.client.DropTarget.addDragEnterHandler (DropTarget.java:44) at com.applegreen.gwt.test.client.DragAndDropTest.onModuleLoad (DragAndDropTest.java:46) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at com.google.gwt.dev.shell.ModuleSpace.onLoad(ModuleSpace.java: 369) at com.google.gwt.dev.shell.OophmSessionHandler.loadModule (OophmSessionHandler.java:185) at com.google.gwt.dev.shell.BrowserChannelServer.processConnection (BrowserChannelServer.java:380) at com.google.gwt.dev.shell.BrowserChannelServer.run (BrowserChannelServer.java:222) at java.lang.Thread.run(Unknown Source) Can anyone shed any light on what I'm doing wrong or what method I should have overidden (I'm not a java programmer btw)?? Cheers, Dave -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Having Trouble Extending MouseEvent...
OK, From what I have since found out is that *all* the native browser events are stored in a JSNI method in the DOMImpl class here DOMImpl.eventGetTypeInt(String name)... which is why the exception was being thrown (there is no drop, dragenter, etc events defined). So in order to add the new html5 events I would need to add my own DOMImpl class... which I can't seem to do... I appear to be trying to accomplish the same task as the person posting here http://groups.google.com/group/google-web-toolkit/browse_thread/thread/560ff832885745b0# This doesn't appear to be possible (or at least simple or obvious or documented)... Its frustrating for me as I've already written the (few lines of) javascript code to do this - I'm using GWT for a project so really I need a GWT implementation... Do any of the GWT experts have any suggestions?? On Dec 30, 4:24 pm, DaveC david.andrew.chap...@googlemail.com wrote: I'm probably not doing this the right way but, I've been trying to extend MouseEvent to support HTML5 Drag and Drop (drag, dragenter, etc. etc.). I've created a: Has...Handlers interface bunch of Handler classes (DropHandler, DragEnterHandler, etc) and a bunch of Event classes that extend MouseEvent (DropEvent, DragEnterEvent, etc). I've also created a DropTarget Widget that implements the Has...Handlers interface which accepts a Widget as a param in its contructor which then calls setElement() passing in widget.getElement ()... I then add this DropTarget to the RootPanel (for testing purposes) in an onModuleLoad. But I'm getting a low level error (Something other than an int was returned from JSNI method): com.google.gwt.dev.shell.HostedModeException: Something other than an int was returned from JSNI method '@com.google.gwt.user.client.impl.domimpl::eventGetTypeInt(Ljava/lang/ String;)': JS value of type undefined, expected int at com.google.gwt.dev.shell.JsValueGlue.getIntRange (JsValueGlue.java:266) at com.google.gwt.dev.shell.JsValueGlue.get(JsValueGlue.java:144) at com.google.gwt.dev.shell.ModuleSpace.invokeNativeInt (ModuleSpace.java:242) at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeInt (JavaScriptHost.java:75) at com.google.gwt.user.client.impl.DOMImpl.eventGetTypeInt (DOMImpl.java) at com.google.gwt.user.client.Event$.getTypeInt(Event.java:491) at com.google.gwt.user.client.ui.Widget.addDomHandler(Widget.java: 184) at com.applegreen.gwt.html5.dnd.client.DropTarget.addDragEnterHandler (DropTarget.java:44) at com.applegreen.gwt.test.client.DragAndDropTest.onModuleLoad (DragAndDropTest.java:46) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at com.google.gwt.dev.shell.ModuleSpace.onLoad(ModuleSpace.java: 369) at com.google.gwt.dev.shell.OophmSessionHandler.loadModule (OophmSessionHandler.java:185) at com.google.gwt.dev.shell.BrowserChannelServer.processConnection (BrowserChannelServer.java:380) at com.google.gwt.dev.shell.BrowserChannelServer.run (BrowserChannelServer.java:222) at java.lang.Thread.run(Unknown Source) Can anyone shed any light on what I'm doing wrong or what method I should have overidden (I'm not a java programmer btw)?? Cheers, Dave -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: DOMImpl for iPhone: How to do ?
It seems I'm trying to do the same thing http://groups.google.com/group/google-web-toolkit/browse_thread/thread/e1c6bd5a5d196ecf... and have come up against the same barriers. If I find the answer I'll let you know. Cheers, Dave On Dec 30, 10:23 pm, fvisticot fvisti...@gmail.com wrote: I would like to manage the iPhone touchstart touchmove... events with a clean solution. It seems that i need to create my own DOMImpl for the iPhone and link this new DOMImpl to the iPhone userAgent. Do i need to recompile the GWT sources for that ? It seems that i can not override the DOMImplSafari...so it seems that a re-compilation is required... I there a document/tuto with the differents mandatory steps to create a new DOMImpl ? Is there a list of class to implement when adding a new DOMImpl ? (DOMImpl, UserAgent.gwt.xml, Creating new DomEvent...) Is there allready a DOMImplIphone implementation (GoogleWave is available on the iPhonepearhaps are they using a dedicated implementation) ?? Fred. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT CSS3 sitting in a tree...
Thanks for your reply Thomas.
Unfortunately this is as I expected.
WRT the vendor specific extentions I agree they aren't errors so why
does the spec suggest to handle them that way (why strip them when
they are not errors - if they're not errors leave them alone!)?
I'm not a Java programmer - but I can write a bit - so patching Flute,
CSSParser and GWT is probably beyond my knowledge - but maybe I'll
have a go at writing something in Javascript first and then port it to
Java!
On Oct 19, 4:15 pm, Thomas Broyer t.bro...@gmail.com wrote:
On 19 oct, 11:38, DaveC david.andrew.chap...@googlemail.com wrote:
I'm trying to use some css3 media queries in my GWT app via a
CssResource and StyleInjector e.g.
@media screen and (color) {
...
}
Unfortunately GWT’s CssResource doesn't yet support this - it strips
out the bit it doesn't understand and outputs:
@MEDIA screen{}
…removing any rules I declared inside.
Your @media rule is not valid CSS 2.1 (it only accepts comma-separated
media, each medium being an identifier), and GWT (Flute, actually)
expectedly chokes on the and:
[WARN] Line 7 column 14: encountered and. Was expecting one of: {
,
Seehttp://www.w3.org/TR/CSS21/grammar.html
Your @media rule is CSS3 media
queries-style:http://www.w3.org/TR/css3-mediaqueries/
which Flute(the CSS aprser used by GWT) doesn't support
(unfortunately, CSSParser doesn't either AFAICT).
I also came across a similar thing when trying to use vendor
specific extensions, but found a working around that caused the GWT
compiler to ignore them (I escaped the starting hyphen e.g. \-moz-
inline-box).
Yes, it's because Flute is somewhat outdated (supports CSS 2.0 but not
CSS 2.1):http://code.google.com/p/google-web-toolkit/issues/detail?id=3595#c3
I find the W3C spec a bit ambiguous:
Quote: An initial dash or underscore is guaranteed never to be used
in a property or keyword by any current or future level of CSS. Thus
typical CSS implementations may not recognize such properties and may
ignore them according to the rules for handling parsing
errors. (Note usage of may and may not - are they errors or
not?)
They're not errors.
My question is does anyone know of a way I can get the GWT Compiler to
recognise my media queries?
Apart from patching Flute (or rather CSSParser and then GWT, to use
CSSParser instead of Flute), I don't see.
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GWT CSS3 sitting in a tree...
I'm trying to use some css3 media queries in my GWT app via a
CssResource and StyleInjector e.g.
@media screen and (color) {
...
}
Unfortunately GWT’s CssResource doesn't yet support this - it strips
out the bit it doesn't understand and outputs:
@MEDIA screen{}
…removing any rules I declared inside.
I also came across a similar thing when trying to use vendor
specific extensions, but found a working around that caused the GWT
compiler to ignore them (I escaped the starting hyphen e.g. \-moz-
inline-box).
I find the W3C spec a bit ambiguous:
Quote: An initial dash or underscore is guaranteed never to be used
in a property or keyword by any current or future level of CSS. Thus
typical CSS implementations may not recognize such properties and may
ignore them according to the rules for handling parsing
errors. (Note usage of may and may not - are they errors or
not?)
So...
My question is does anyone know of a way I can get the GWT Compiler to
recognise my media queries?
Cheers,
Dave
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Re: Wait until widget is ready
Hi Michael,
The Widget.onLoad method should be called after its attached to the
document (rendered)...
Assuming that you have a MyComponent inside a ScrollPanel, perhaps
try this in your MyComponent:
@Override
public onLoad() {
Widget parent = getParent();
if (parent != null parent.isAttached() parent.isVisible
()) {
// set parent scrollPosition...
}
}
How are you calculating the scollPosition?
Cheers,
Dave
On Oct 19, 11:27 am, grue michael.gruetz...@googlemail.com wrote:
Hi,
I have placed a GWT component within my web application which contains
a ScrollPanel. The initial scroll position
should be set when the page is loaded. Now the problem is that this
will only work when the content of the ScrollPanel
is ready (so there actually is anything scrollable inside the panel).
When I call the setScrollPosition() in the constructor of my component
nothing happens because the component is
not rendered yet (there is no async stuff in my component).
How can I execute any method after a component is rendered? I have
tried window.onload but it doesn't seem to work.
Also Widget.onLoad() is called before the widget is rendered.
Thanks in advance for any hints.
Michael
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