[chromium-discuss] Image object in chromium

[zhaoshuang]

in javascript , we have this code:

*var img = new Image();*

I want know how to implement Image object in chromium. I search in v8 code,
it is not built-in object. So I think it is be create in Blink.
Anyone can give me some suggestions? I'll appreciate it

[PhistucK]

It is a constructor for HTMLImageElement (see the IDL
<https://cs.chromium.org/chromium/src/third_party/blink/renderer/core/html/html_image_element.idl?q=file:idl+image+file:blink&sq=package:chromium&dr=C&l=27>
) -

new Image().toString()

"[object HTMLImageElement]"

The element is implemented here -
https://cs.chromium.org/chromium/src/third_party/blink/renderer/core/html/html_image_element.h
https://cs.chromium.org/chromium/src/third_party/blink/renderer/core/html/html_image_element.cc
Looks like CreateForJSConstructor
<https://cs.chromium.org/chromium/src/third_party/blink/renderer/core/html/html_image_element.cc?sq=package:chromium&dr=C&g=0&l=150>
is
responsible for implementing new Image(...).

Bindings (the way to expose C++ as JavaScript object/members) generated
automatically from the aforementioned IDL -
https://cs.chromium.org/chromium/src/out/Debug/gen/third_party/blink/renderer/bindings/core/v8/v8_html_iframe_element.h
https://cs.chromium.org/chromium/src/out/Debug/gen/third_party/blink/renderer/bindings/core/v8/v8_html_image_element.cc

☆*PhistucK*

*var img = new Image();*
I want know how to implement Image object in chromium. I search in v8
code, it is not built-in object. So I think it is be create in Blink.
Anyone can give me some suggestions? I'll appreciate it
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[zhaoshuang]

I got it , thanks very much

圚 2018幎11月21日星期䞉 UTC+8䞋午6:38:42PhistucK写道

Post by PhistucK
It is a constructor for HTMLImageElement (see the IDL
<https://cs.chromium.org/chromium/src/third_party/blink/renderer/core/html/html_image_element.idl?q=file:idl+image+file:blink&sq=package:chromium&dr=C&l=27>
) -

new Image().toString()

"[object HTMLImageElement]"
The element is implemented here -
https://cs.chromium.org/chromium/src/third_party/blink/renderer/core/html/html_image_element.h
https://cs.chromium.org/chromium/src/third_party/blink/renderer/core/html/html_image_element.cc
Looks like CreateForJSConstructor
<https://cs.chromium.org/chromium/src/third_party/blink/renderer/core/html/html_image_element.cc?sq=package:chromium&dr=C&g=0&l=150> is
responsible for implementing new Image(...).
Bindings (the way to expose C++ as JavaScript object/members) generated
automatically from the aforementioned IDL -
https://cs.chromium.org/chromium/src/out/Debug/gen/third_party/blink/renderer/bindings/core/v8/v8_html_iframe_element.h
https://cs.chromium.org/chromium/src/out/Debug/gen/third_party/blink/renderer/bindings/core/v8/v8_html_image_element.cc
☆*PhistucK*

*var img = new Image();*
I want know how to implement Image object in chromium. I search in v8
code, it is not built-in object. So I think it is be create in Blink.
Anyone can give me some suggestions? I'll appreciate it
--
--
http://groups.google.com/a/chromium.org/group/chromium-discuss
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