Re: [webkit-dev] How to get mimeType for decidePolicyForResponse ??

2011-05-25 Thread Sam Weinig
It doesn't look like they have have exposed API to do this yet.  Please file an 
enhancement request at bugs.webkit.org.

-Sam

On May 24, 2011, at 8:33 PM, naren.me...@gmail.com wrote:

 Thanks for the response, Sam.
 
 On Tue, May 24, 2011 at 10:19 PM, Sam Weinig wei...@apple.com wrote:
 It depends what port you are using,
 
 I am using WebKit2-GTK port.
 Any idea, how it can be done in that ?
 
 -- Naren
 
 but the general idea is that you should be able to get a MIME type from the 
 WKURLResponseRef.  On the Mac for instance, we can get an NSURLReponse out 
 of a  WKURLResponseRef using WKURLResponseCopyNSURLResponse and copy the 
 MIME type from that.
 
 -Sam
 
 
 
 
 
 
 On May 24, 2011, at 5:42 AM, naren.me...@gmail.com wrote:
 
 Hi,
 
 I am trying to implement the functionality for decidePolicyForResponse 
 function.
 For that, I require the mimeType based on the WKURLResponseRef.
 
 In previous implementation of WebKit we used to pass the mimeType
 explicitly as one of the parameters of the callback function.
 But it has been changed, and so I am not able to find out a way to do
 that and got stuck.
 
 Can any of you tell me how it can be done or point me to a sample code
 where its done ??
 
 Regards,
 Naren
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Re: [webkit-dev] SVG Fonts in webkit

2011-05-25 Thread Nikolas Zimmermann

Am 25.05.2011 um 00:42 schrieb Saba Taseer:

 It executes the code in the following #if ENable but the if statement returns 
 false. Thus I presume that SVG_FONTS is enabled. It is instead going to 
 drawSimpleText. 
 #if ENABLE(SVG_FONTS)
 if (primaryFont()-isSVGFont()) {
 drawTextUsingSVGFont(context, run, point, from, to);
 return;
 }
 #endif
 
 if (codePath(run) != Complex)
 return drawSimpleText(context, run, point, from, to);
 I am running a simple svg script 
 ?xml version=1.0 standalone=yes? 
 svg width=400px height=300px version=1.1  xmlns = 
 'http://www.w3.org/2000/svg'   
   text x=100 y=100  style=font-family: impact, georgia, times, 
 serif;   font-weight: normal; font-style: normal   
   Text using web safe font
   /text
 /svg

You're not using SVG Fonts at all, you're using impact, georgia... which are 
native platform fonts.
Google for existing examples using SVG Fonts :-)

Cheers,
Niko

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[webkit-dev] SVG font file location

2011-05-25 Thread Saba Taseer

I am trying to study SVG fonts rendering in webkit. I followed the instructions 
at http://frabru.de/c.php/article/SVGFonts-usage and got my SVG font running 
for Chrome. I added the same script as a string in winlauncher to see the 
course of events SVG text goes through to render SVG text, but the text 
displays in sans-serif and not in Tomson Talks font. I have copied 
TomsonTalks.svg file in winLauncher folder. I tried giving the absolute path to 
the font file too but it still doesnt work. Please let me know where should I 
put my svg font file for winlauncher application. Here is the script I am using 
?xml version=1.0 encoding=UTF-8?svg xmlns=http://www.w3.org/2000/svg; 
xmlns:xlink=http://www.w3.org/1999/xlink; viewBox=0 0 400 300defs 
font-face font-family=Tomson Talks  font-face-srcfont-face-uri 
xlink:href=TomsonTalks.svg#TomsonTalksfont-face-format string=svg/   
/font-face-uri  /font-face-src /font-face/defs text 
font-family='Tomson Talks',sans-serif font-size=25hello  tspan x=302 
y=60 text-anchor=middleYou cause/tspan /text/svg

I am not good at scripting, plz help me if I have done smthing wrong in the 
script. 


Saba Taseer
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Re: [webkit-dev] SVG font file location

2011-05-25 Thread Rob Buis
Hi Saba,

On 25 May 2011 16:08, Saba Taseer stehs...@hotmail.com wrote:
 I am trying to study SVG fonts rendering in webkit. I followed the
 instructions at http://frabru.de/c.php/article/SVGFonts-usage and got my SVG
 font running for Chrome. I added the same script as a string in winlauncher
 to see the course of events SVG text goes through to render SVG text, but
 the text displays in sans-serif and not in Tomson Talks font. I have
 copied TomsonTalks.svg file in winLauncher folder. I tried giving the
 absolute path to the font file too but it still doesnt work. Please let me
 know where should I put my svg font file for winlauncher application. Here
 is the script I am using
 ?xml version=1.0 encoding=UTF-8?
 svg xmlns=http://www.w3.org/2000/svg;
 xmlns:xlink=http://www.w3.org/1999/xlink; viewBox=0 0 400 300
 defs 
 font-face font-family=Tomson Talks
   font-face-src
 font-face-uri xlink:href=TomsonTalks.svg#TomsonTalks
     font-face-format string=svg/
    /font-face-uri
   /font-face-src
  /font-face
 /defs
  text font-family='Tomson Talks',sans-serif font-size=25hello
   tspan x=302 y=60 text-anchor=middleYou cause/tspan
  /text
 /svg

 I am not good at scripting, plz help me if I have done smthing wrong in the
 script.

If TomsonTalks.svg is in the same dir as the listed svg I think it
should work. You can try removing the spaces in the name as well, I
think it looks valid how you did it but maybe there is a bug there.
Finally, as a sanity check you could try
LayoutTests/svg/custom/glyph-transformation-with-hkern.svg as a SVG
font test that should work. If you don't have source checkout you can
get it here:

http://svn.webkit.org/repository/webkit/trunk/LayoutTests/svg/custom/
Cheers,

Rob.
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Re: [webkit-dev] SVG font file location

2011-05-25 Thread Saba Taseer

I am winLauncher to debug the svg fonts course. I have to define my script as a 
string but the svg font is in a seperate file. The glyphs file you mentioned in 
layouttests/svg/custom is also giving different font than in chrome. I think 
this is a file location issue, but I cant find a way to resolve it. I have 
tried copying it into all locations including debug.



Saba Taseer



 Date: Wed, 25 May 2011 16:37:47 -0400
 Subject: Re: [webkit-dev] SVG font file location
 From: rwlb...@gmail.com
 To: stehs...@hotmail.com
 CC: webkit-dev@lists.webkit.org; webkit-h...@lists.webkit.org
 
 Hi Saba,
 
 On 25 May 2011 16:08, Saba Taseer stehs...@hotmail.com wrote:
  I am trying to study SVG fonts rendering in webkit. I followed the
  instructions at http://frabru.de/c.php/article/SVGFonts-usage and got my SVG
  font running for Chrome. I added the same script as a string in winlauncher
  to see the course of events SVG text goes through to render SVG text, but
  the text displays in sans-serif and not in Tomson Talks font. I have
  copied TomsonTalks.svg file in winLauncher folder. I tried giving the
  absolute path to the font file too but it still doesnt work. Please let me
  know where should I put my svg font file for winlauncher application. Here
  is the script I am using
  ?xml version=1.0 encoding=UTF-8?
  svg xmlns=http://www.w3.org/2000/svg;
  xmlns:xlink=http://www.w3.org/1999/xlink; viewBox=0 0 400 300
  defs 
  font-face font-family=Tomson Talks
font-face-src
  font-face-uri xlink:href=TomsonTalks.svg#TomsonTalks
  font-face-format string=svg/
 /font-face-uri
/font-face-src
   /font-face
  /defs
   text font-family='Tomson Talks',sans-serif font-size=25hello
tspan x=302 y=60 text-anchor=middleYou cause/tspan
   /text
  /svg
 
  I am not good at scripting, plz help me if I have done smthing wrong in the
  script.
 
 If TomsonTalks.svg is in the same dir as the listed svg I think it
 should work. You can try removing the spaces in the name as well, I
 think it looks valid how you did it but maybe there is a bug there.
 Finally, as a sanity check you could try
 LayoutTests/svg/custom/glyph-transformation-with-hkern.svg as a SVG
 font test that should work. If you don't have source checkout you can
 get it here:
 
 http://svn.webkit.org/repository/webkit/trunk/LayoutTests/svg/custom/
 Cheers,
 
 Rob.
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Re: [webkit-dev] Early deletion of DocumentLoader instances

2011-05-25 Thread Brady Eidson

On May 24, 2011, at 09:31 , Darin Adler wrote:

 On May 24, 2011, at 6:56 AM, Raphael Kubo da Costa wrote:

 we should fix it by making some better relationship between the Document 
 and DocumentLoader that guarantees we won’t have a dangling pointer. Either 
 reference counting to keep the object alive, or code to zero out the 
 pointer at some point before the object is deleted.
 
 r80507 added a check for m_frame before using it (Document also has a raw 
 Frame pointer). Perhaps the same should be done here?
 
 That fix is not a good quality one. It’s a fragile approach. The relationship 
 of a document to its frame is that the association between the two is 
 explicitly broken by the detach function in document. But it’s not clear this 
 is the right way to break the association with a document loader. Here are 
 three specific points:
 
1) It’s poor design that the document grabs and keeps a pointer to the 
 document loader in its constructor. The document is not in a position to 
 monitor the lifetime of the loader. It would be far more maintainable if the 
 same code/class both set up and maintained the pointer.
 
2) It's not clear that detach time is the right moment to invalidate the 
 pointer from a document to its document loader. It would be better to study 
 the lifetime of document loader and loading process to get a clearer idea of 
 exactly what the right time is and what the best relationship between these 
 objects is.
 
3) Keeping a dangling m_documentLoader pointer around with no guarantee 
 that it points to a live object is a bad design pattern. If the loader is no 
 longer valid when the document is not associated with a frame, then right way 
 to deal with that is to zero out m_documentLoader in the detach function, not 
 to check m_frame each time before checking m_documentLoader.
 
 This fragile design was introduced just three months ago in 
 http://trac.webkit.org/changeset/78342. It might be worth asking Nate 
 Chapin or Adam Barth if they had some plans for further refinement. They may 
 have overlooked these design mistakes, but it’s likely they have future plans 
 that will rectify this.
 
 Maybe we could continue this discussion in a bug report?

We now have crash report data showing that this is hitting the Mac port in the 
field.

I filed https://bugs.webkit.org/show_bug.cgi?id=61494

At this point, I will be working to see how easy it is to simply roll out 78342 
since it was only refactoring and not fixing any particular bug.

~Brady

 
-- Darin
 
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Re: [webkit-dev] Early deletion of DocumentLoader instances

2011-05-25 Thread Adam Barth
On Wed, May 25, 2011 at 6:26 PM, Brady Eidson beid...@apple.com wrote:
 On May 24, 2011, at 09:31 , Darin Adler wrote:
 On May 24, 2011, at 6:56 AM, Raphael Kubo da Costa wrote:
 we should fix it by making some better relationship between the Document 
 and DocumentLoader that guarantees we won’t have a dangling pointer. 
 Either reference counting to keep the object alive, or code to zero out 
 the pointer at some point before the object is deleted.

 r80507 added a check for m_frame before using it (Document also has a raw 
 Frame pointer). Perhaps the same should be done here?

 That fix is not a good quality one. It’s a fragile approach. The 
 relationship of a document to its frame is that the association between the 
 two is explicitly broken by the detach function in document. But it’s not 
 clear this is the right way to break the association with a document loader. 
 Here are three specific points:

    1) It’s poor design that the document grabs and keeps a pointer to the 
 document loader in its constructor. The document is not in a position to 
 monitor the lifetime of the loader. It would be far more maintainable if the 
 same code/class both set up and maintained the pointer.

    2) It's not clear that detach time is the right moment to invalidate the 
 pointer from a document to its document loader. It would be better to study 
 the lifetime of document loader and loading process to get a clearer idea of 
 exactly what the right time is and what the best relationship between these 
 objects is.

    3) Keeping a dangling m_documentLoader pointer around with no guarantee 
 that it points to a live object is a bad design pattern. If the loader is no 
 longer valid when the document is not associated with a frame, then right 
 way to deal with that is to zero out m_documentLoader in the detach 
 function, not to check m_frame each time before checking m_documentLoader.

 This fragile design was introduced just three months ago in 
 http://trac.webkit.org/changeset/78342. It might be worth asking Nate 
 Chapin or Adam Barth if they had some plans for further refinement. They may 
 have overlooked these design mistakes, but it’s likely they have future 
 plans that will rectify this.

 Maybe we could continue this discussion in a bug report?

 We now have crash report data showing that this is hitting the Mac port in 
 the field.

 I filed https://bugs.webkit.org/show_bug.cgi?id=61494

 At this point, I will be working to see how easy it is to simply roll out 
 78342 since it was only refactoring and not fixing any particular bug.

Reading my comments on the bug, I was happy that the document had a
pointer to the DocumentLoader.  My apologies for misunderstanding the
ownership relations between these objects.  I thought that
DocumentLoader had Document-lifetime, but it appears that it has
neither Document-lifetime nor Frame-lifetime.

The correct fix is likely to change the way to locate the writer() as follows:

- document-loader()-writer()
+ frame-loader()-activeDocumentLoader()-writer()

I'll put this at the top of my TODO list for Friday.  (Unfortunately,
I'm at the W2SP workshop tomorrow and can't fix the issue
immediately.)

Thanks,
Adam
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Re: [webkit-dev] Early deletion of DocumentLoader instances

2011-05-25 Thread Maciej Stachowiak

On May 25, 2011, at 9:30 PM, Adam Barth wrote:

 
 Reading my comments on the bug, I was happy that the document had a
 pointer to the DocumentLoader.  My apologies for misunderstanding the
 ownership relations between these objects.  I thought that
 DocumentLoader had Document-lifetime, but it appears that it has
 neither Document-lifetime nor Frame-lifetime.
 
 The correct fix is likely to change the way to locate the writer() as follows:
 
 - document-loader()-writer()
 + frame-loader()-activeDocumentLoader()-writer()
 
 I'll put this at the top of my TODO list for Friday.  (Unfortunately,
 I'm at the W2SP workshop tomorrow and can't fix the issue
 immediately.)

Thanks for the suggestion. I think Brady can probably take a shot at this 
before Friday, but we'll keep you in the loop.

Cheers,
Maciej

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