<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>137684</bug_id>
          
          <creation_ts>2014-10-14 02:32:34 -0700</creation_ts>
          <short_desc>Patch to build a wayland-only webkit/EFL(Without X11/Ecore_X)</short_desc>
          <delta_ts>2017-04-25 17:27:37 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>WebKit EFL</component>
          <version>528+ (Nightly build)</version>
          <rep_platform>PC</rep_platform>
          <op_sys>Linux</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>WONTFIX</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="cjacker">jianzhong.huang</reporter>
          <assigned_to name="Nobody">webkit-unassigned</assigned_to>
          <cc>commit-queue</cc>
    
    <cc>gyuyoung.kim</cc>
    
    <cc>lucas.de.marchi</cc>
    
    <cc>mcatanzaro</cc>
    
    <cc>ossy</cc>
    
    <cc>ryuan.choi</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1041512</commentid>
    <comment_count>0</comment_count>
    <who name="cjacker">jianzhong.huang</who>
    <bug_when>2014-10-14 02:32:34 -0700</bug_when>
    <thetext>Here is a patch to build a wayland-only webkit/EFL(Without X11 and ecore_x).

It is applied on ewebkit-1.11.0.(It is almost ready for wayland-only, Thanks for great work.)

This patch includes:
1, Add some missing ifdefs to control X/Ecore_X related codes not be built under wayland-only environment.

2, Fix a inline func undefined issue in ViewportStyleResolver.cpp(I build it with clang 3.5, not sure whether it&apos;s a compiler problem or not.)

3, Fix a wrong func call in PlatformScreenEfl.cpp When ECore_X disabled.

4, Add a option &apos;ENABLE_WAYLAND_ONLY&apos; and set some cmake options to control glx/X11 related codes not build when EGL enabled.

After patch applied, Webkit/EFL can be compiled without X/Ecore_X with &quot;-DENABLE_WAYLAND_ONLY=ON&quot;. And the MiniBrowser works.

NOTE:
1, NETSCAPE_PLUGIN_API is disabled when ENABLE_WAYLAND_ONLY since it&apos;s related to X11/Xlib.

2, It will use cairosurface and software rendering mode, accelation will be disabled since evas_gl_new failed under wayland(there is no libGL exist.)

3, There is some other stable/unimplemented problems, but at least, it can be built now.

All this problems is related to X/ECore_X(Except No.2), and it&apos;s a small patch, So I think it&apos;s OK to submit a ALL-IN-ONE patch.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1041513</commentid>
    <comment_count>1</comment_count>
      <attachid>239789</attachid>
    <who name="cjacker">jianzhong.huang</who>
    <bug_when>2014-10-14 02:34:15 -0700</bug_when>
    <thetext>Created attachment 239789
patch to apply on ewebkit2-1.11.0</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1041535</commentid>
    <comment_count>2</comment_count>
    <who name="WebKit Commit Bot">commit-queue</who>
    <bug_when>2014-10-14 04:24:17 -0700</bug_when>
    <thetext>Attachment 239789 did not pass style-queue:


Total errors found: 0 in 0 files


If any of these errors are false positives, please file a bug against check-webkit-style.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1041737</commentid>
    <comment_count>3</comment_count>
      <attachid>239789</attachid>
    <who name="Gyuyoung Kim">gyuyoung.kim</who>
    <bug_when>2014-10-14 17:33:32 -0700</bug_when>
    <thetext>Comment on attachment 239789
patch to apply on ewebkit2-1.11.0

Oh, nice try ! It looks this patch works in progress still. Please ping me when you are ready to get review.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1041739</commentid>
    <comment_count>4</comment_count>
      <attachid>239789</attachid>
    <who name="Ryuan Choi">ryuan.choi</who>
    <bug_when>2014-10-14 17:35:52 -0700</bug_when>
    <thetext>Comment on attachment 239789
patch to apply on ewebkit2-1.11.0

View in context: https://bugs.webkit.org/attachment.cgi?id=239789&amp;action=review

First, thanks for the patch.
Patch looks almost fine to me.

I didn&apos;t try to prepare wayland backend yet.
I will check it more when I have it.

&gt; ewebkitn/Source/cmake/OptionsEfl.cmake:128
&gt; +option(ENABLE_ECORE_X &quot;Enable Ecore_X specific usage (cursor, bell)&quot;)
&gt; +
&gt; +option(ENABLE_WAYLAND_ONLY &quot;Enable wayland only build.&quot;)
&gt; +if (ENABLE_WAYLAND_ONLY)
&gt; +    set(ENABLE_X11_TARGET OFF)
&gt; +    set(ENABLE_ECORE_X OFF)
&gt; +    set(ENABLE_NETSCAPE_PLUGIN_API OFF)
&gt; +else ()
&gt; +    set(ENABLE_ECORE_X ON)
&gt; +endif ()

In my opinion,
We&apos;d better to choose window system between X or WAYLAND.

Perhaps, like below. (I am bad with naming)
set(WINDOW_SYSTEM &quot;X&quot; CACHE STRING &quot;Choose window system for EWebKit (X or WAYLAND)&quot;)
...

In addition, I have one question.
Doesn&apos;t we need to use ECORE_WAYLAND?

&gt; ewebkitn/Source/cmake/OptionsEfl.cmake:192
&gt; +    if (ENABLE_WAYLAND_ONLY)
&gt; +        set(ENABLE_X11_TARGET OFF)
&gt; +    else ()
&gt; +        set(ENABLE_X11_TARGET ON)
&gt; +    endif ()

It looks not necessary if we checked similar logic in above statement.

&gt; ewebkitn/Source/cmake/OptionsEfl.cmake:248
&gt; +    if (ENABLE_WAYLAND_ONLY)
&gt; +        set(ENABLE_GLES2 ON)
&gt; +    endif ()

Should WAYLAND backend depend on this?

&gt; ewebkitn/Source/cmake/OptionsEfl.cmake:264
&gt; +    if (ENABLE_WAYLAND_ONLY)
&gt; +        set(ENABLE_EGL ON)
&gt; +    endif ()

Ditto.

&gt; ewebkit2/Source/WebCore/platform/efl/EflScreenUtilities.cpp:69
&gt; +#ifdef HAVE_ECORE_X
&gt;  #include &lt;Ecore_X.h&gt;
&gt; +#endif

Usually, we moved conditional includes to the bottom of includes with empty line.

#include ...
#include ...

#if XXX
#include ...
#endif

#if YYY
#include ..
#endif

&gt; ewebkit2/Source/WebCore/css/ViewportStyleResolver.cpp:43
&gt; +//for undefined renderStyle(), it&apos;s a inline function in header.
&gt; +#include &quot;NodeRenderStyle.h&quot;

I think that this is not related to EFL port.
So I think that we should make different bug for this.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1041754</commentid>
    <comment_count>5</comment_count>
    <who name="cjacker">jianzhong.huang</who>
    <bug_when>2014-10-14 18:25:59 -0700</bug_when>
    <thetext>(In reply to comment #4)
Thanks for your helpful reply.
comment in content.

I will try git codes and refind this patch.

&gt; (From update of attachment 239789 [details])
&gt; View in context: https://bugs.webkit.org/attachment.cgi?id=239789&amp;action=review
&gt; 
&gt; First, thanks for the patch.
&gt; Patch looks almost fine to me.
&gt; 
&gt; I didn&apos;t try to prepare wayland backend yet.
&gt; I will check it more when I have it.
&gt; 
&gt; &gt; ewebkitn/Source/cmake/OptionsEfl.cmake:128
&gt; &gt; +option(ENABLE_ECORE_X &quot;Enable Ecore_X specific usage (cursor, bell)&quot;)
&gt; &gt; +
&gt; &gt; +option(ENABLE_WAYLAND_ONLY &quot;Enable wayland only build.&quot;)
&gt; &gt; +if (ENABLE_WAYLAND_ONLY)
&gt; &gt; +    set(ENABLE_X11_TARGET OFF)
&gt; &gt; +    set(ENABLE_ECORE_X OFF)
&gt; &gt; +    set(ENABLE_NETSCAPE_PLUGIN_API OFF)
&gt; &gt; +else ()
&gt; &gt; +    set(ENABLE_ECORE_X ON)
&gt; &gt; +endif ()
&gt; 
&gt; In my opinion,
&gt; We&apos;d better to choose window system between X or WAYLAND.
&gt; 
&gt; Perhaps, like below. (I am bad with naming)
&gt; set(WINDOW_SYSTEM &quot;X&quot; CACHE STRING &quot;Choose window system for EWebKit (X or WAYLAND)&quot;)
&gt; ...
&gt; 

Good suggestion.

&gt; In addition, I have one question.
&gt; Doesn&apos;t we need to use ECORE_WAYLAND?
&gt; 

It seems there is no direct dependency on ECORE_WAYLAND currently.
I think it should be checked to ensure EFL wayland backend enabled.

&gt; &gt; ewebkitn/Source/cmake/OptionsEfl.cmake:192
&gt; &gt; +    if (ENABLE_WAYLAND_ONLY)
&gt; &gt; +        set(ENABLE_X11_TARGET OFF)
&gt; &gt; +    else ()
&gt; &gt; +        set(ENABLE_X11_TARGET ON)
&gt; &gt; +    endif ()
&gt; 
&gt; It looks not necessary if we checked similar logic in above statement.
&gt; 
&gt; &gt; ewebkitn/Source/cmake/OptionsEfl.cmake:248
&gt; &gt; +    if (ENABLE_WAYLAND_ONLY)
&gt; &gt; +        set(ENABLE_GLES2 ON)
&gt; &gt; +    endif ()
&gt; 
&gt; Should WAYLAND backend depend on this?
&gt; 
&gt; &gt; ewebkitn/Source/cmake/OptionsEfl.cmake:264
&gt; &gt; +    if (ENABLE_WAYLAND_ONLY)
&gt; &gt; +        set(ENABLE_EGL ON)
&gt; &gt; +    endif ()
&gt; 
&gt; Ditto.

Above two defines will be enabled when WEBGL or WTF_USE_3D_GRAPHICS set to ON, because there is no libGL(glx) under wayland-only environment, these two option should be and MUST be enabled on wayland-only build.

for example, &quot;Source/WebKit2/UIProcess/CoordinatedGraphics/WebView.cpp&quot; and other uiprocess related codes depend on COORDINATED_GRAPHICS macro, it is controlbed by WTF_USE_3D_GRAPHICS option.

Currently, acceleration will be disabled automatically, since evas_gl_new will fail without libGL. it will fallback to cairo surface instead of GLSurface, I guess WEBGL did not work now(untest), But the cairo rendering works under wayland-only enviroment.(Thank god, at least, it works.)

&gt; 
&gt; &gt; ewebkit2/Source/WebCore/platform/efl/EflScreenUtilities.cpp:69
&gt; &gt; +#ifdef HAVE_ECORE_X
&gt; &gt;  #include &lt;Ecore_X.h&gt;
&gt; &gt; +#endif
&gt; 
&gt; Usually, we moved conditional includes to the bottom of includes with empty line.
&gt; 
&gt; #include ...
&gt; #include ...
&gt; 
&gt; #if XXX
&gt; #include ...
&gt; #endif
&gt; 
&gt; #if YYY
&gt; #include ..
&gt; #endif
&gt; 
OK, looks more clear.

&gt; &gt; ewebkit2/Source/WebCore/css/ViewportStyleResolver.cpp:43
&gt; &gt; +//for undefined renderStyle(), it&apos;s a inline function in header.
&gt; &gt; +#include &quot;NodeRenderStyle.h&quot;
&gt; 
&gt; I think that this is not related to EFL port.
&gt; So I think that we should make different bug for this.

Yes, I found this commit in Git codes(No more bug report needed), It should be clang issue.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1041797</commentid>
    <comment_count>6</comment_count>
      <attachid>239849</attachid>
    <who name="cjacker">jianzhong.huang</who>
    <bug_when>2014-10-14 22:36:34 -0700</bug_when>
    <thetext>Created attachment 239849
New patch to enable wayland build of ewebkit2

This patch include:
1, Changes to Source/WebKit2/UIProcess/efl/WebPageProxyEfl.cpp
The plugin related funcs is controlled by PLUGIN_ARCHITECTURE(X11) macro in header(Source/WebKit2/UIProcess/WebPageProxy.h).


2, Changes to Source/WebKit2/UIProcess/API/efl/EwkView.cpp
ECore_X.h should be imported only when HAVE_ECORE_X defined, It did no fail wayland build when this header exist.
But for pure wayland environment, This header did not exist at all.


3, Changes to Source/WebCore/platform/efl/EflScreenUtilities.cpp
Enable it only when HAVE_ECORE_X defined like other funcs in source.


4, Changes to Source/WebCore/platform/efl/PlatformScreenEfl.cpp
evas() function did not exist anymore, should use platformWidget() instead.
It&apos;s a bug when ECore_X disabled.

5, Changes to Tools/CMakeLists.txt
Do not build TestNetscapePlugIn when ENABLE_X11_TARGET OFF, since it&apos;s X11/Xlib related.

Above 5 changes should be safe, hope it can be commited soon.


And ...., about cmake options, It&apos;s not easy to make the logic clear:

Maybe ENABLE_ECORE_X should be removed and added two new ENABLE_X/ENABLE_WAYLAND options,
Here I still use a &quot;ENABLE_WAYLAND&quot; option, If it set ON:

1, ensure ENABLE_X11_TARGET/ENABLE_ECORE_X/ENABLE_NETSCAPE_PLUGIN_API set to OFF, since they depend on X.
2, check ecore-wayland to ensure EFL had wayland support.
3, set ENABLE_GLES2 and ENABLE_EGL ON to disable GL/GLX requirement.
4, do not build X11 related codes in EGL source list.
5, link WebCore/WebKit2 to GLESv2(when SHARED_CORE ON, libwebcore need link to GLESv2 also.)
6, Only link to X11 libs when ENABLE_X11_TARGET ON.

GLESv2/EGL required by WTF_USE_TILED_BACKING_STORE(-DWTF_USE_COORDINATED_GRAPHICS=1) under wayland build. (For X11 build, GL/GLX will be used by default.)

Acctually, WTF_USE_TILED_BACKING_STORE should never be disabled(even under X11), otherwise all gui related codes will be disabled(the COORDINATED_GRAPHICS macro mask all gui related codes.).</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1301342</commentid>
    <comment_count>7</comment_count>
    <who name="Michael Catanzaro">mcatanzaro</who>
    <bug_when>2017-04-25 17:27:37 -0700</bug_when>
    <thetext>EFL has been removed from trunk</thetext>
  </long_desc>
      
          <attachment
              isobsolete="1"
              ispatch="1"
              isprivate="0"
          >
            <attachid>239789</attachid>
            <date>2014-10-14 02:34:15 -0700</date>
            <delta_ts>2014-10-14 22:36:34 -0700</delta_ts>
            <desc>patch to apply on ewebkit2-1.11.0</desc>
            <filename>ewebkit-wayland-only-all-in-one.patch</filename>
            <type>text/plain</type>
            <size>7955</size>
            <attacher name="cjacker">jianzhong.huang</attacher>
            
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          </attachment>
          <attachment
              isobsolete="0"
              ispatch="1"
              isprivate="0"
          >
            <attachid>239849</attachid>
            <date>2014-10-14 22:36:34 -0700</date>
            <delta_ts>2014-10-14 22:36:34 -0700</delta_ts>
            <desc>New patch to enable wayland build of ewebkit2</desc>
            <filename>ewebkit-enable-wayland-build.patch</filename>
            <type>text/plain</type>
            <size>8166</size>
            <attacher name="cjacker">jianzhong.huang</attacher>
            
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          </attachment>
      

    </bug>

</bugzilla>