Optimizing images can drastically decrease the page load time because, on average, 60% of a website’s page weight is made up of them. Responsive Web Design has changed how the web is built and that includes images too, because the aim is to deliver the highest quality image supported and nothing more. So today we have new standard elements and attributes to work with images widely supported by browsers (and polyfills for the rest) and Drupal has incorporated them. In Drupal 8 the Responsive Image module is in core and is prepared to solve a wide range of needs. And, as usually happens in Drupal, there are several contributed modules that help us to improve the basic needs or to solve the special ones, like <strong>Art Direction</strong>. I’ll start this session with a quick introduction about the different existing solutions for responsive images to be sure we are all at the same page. I’ll explain the difference between viewport sizing and Art Direction and how we are supposed to work with Drupal for each one, including demos. I’ll share tips and contrib modules that can make the developer and the final user live easier. When you leave this session you’ll have an idea about the options offered for Drupal and enough knowledge to choose the correct one for your project.

1. R E S P O N S I V E
I M A G E S
U N D E R C O N T R O L

2. T H A N K S !

3. T H A N K S !

4. @ c h u m i l l a s # d r u p a l d e v d a y s
C R I S T I N A C H U M I L L A S
D E S I G N E R & D R U P A L F R O N T E N D
@chumillas
ckrina

5. T H E B A S I C S
R E S P O N S I V E I M A G E S I N D R U PA L
A R T D I R E C T I O N
W Y S I W Y G
R E S P O N S I V E I M A G E S

6. @ c h u m i l l a s # d r u p a l d e v d a y s
P A G E W E I G H T
A V E R A G E
2016
2015
2014
2,26Mb
1,95Mb
2,48Mb
+16%
+15%
+10%

7. @ c h u m i l l a s # d r u p a l d e v d a y s
6 1 %
web traffic
A S Y N C H R O N O U S
request
T O O B I G
for the device
F A C T S

8. @ c h u m i l l a s # d r u p a l d e v d a y s
D E L I V E R T H E
H I G H E S T Q U A L I T Y
I M A G E S U P P O R T E D
A N D N O T H I N G M O R E .

9. T H E B A S I C S

10. Variables known by:
AUTHOR
when she’s writing the code?
BROWSER
when it’s loading the page?
viewport dimensions x YES
image size relative to the viewport YES YES via sizes!
screen density x YES
source files’ dimensions YES YES via srcset!
SOURCE https://ericportis.com/posts/2014/srcset-sizes
S C A L E D I M A G E

11. srcset=“large.jpg 1440w,
medium.jpg 960w,
small.jpg 480w”
sizes=“(min-width: 36em) 33.3vw,
src=“medium.jpg”
alt=“A road”>
100vw”
<img
S C A L E D I M A G E

12. srcset=“large.jpg 1440w,
medium.jpg 960w,
small.jpg 480w”
W I D T H I N P I X E L Sw
(1440px)
(960px)
(480px)
<img

13. sizes=“(min-width: 36em) 33.3vw,
100vw”
image {
width: 100vw;
}
@media (min-width: 36em) {
width: 33.3vw;
}
srcset=“large.jpg 1440w,
medium.jpg 960w,
small.jpg 480w”
<img
C S S M E D I A Q U E R I E Ssizes

14. srcset=“large.jpg 1440w,
medium.jpg 960w,
small.jpg 480w”
sizes=“(min-width: 36em) 33.3vw,
src=“medium.jpg”
alt=“A road”>
100vw”
<img
S C A L E D I M A G E

15. S C A L E D I M A G E S

16. A R T D I R E C T I O N

17. <picture>
@ c h u m i l l a s # d r u p a l d e v d a y s

18. <source srcset=“image-small.jpg 1x,
image-small2x.jpg 2x”
<img src=“image-big.jpg 180w” />
media=“(min-width: 0px) and
(max-width: 29.99em)”>
<source srcset=“image-big.jpg 1x,
media=”(min-width: 30em)”>
image-big2x.jpg 2x”
</picture>
sizes=”(min-width: 30em) 33vw”>
<picture>

19. @ c h u m i l l a s
# d r u p a l d e v d a y s
P I C T U R E
B R O W S E R S U P P O R T
Same for srcret and sizes

20. @ c h u m i l l a s
# d r u p a l d e v d a y s
P I C T U R E F I L L
B R O W S E R S U P P O R T
A R E S P O N S I V E I M A G E P O L Y F I L L
http://scottjehl.github.io/picturefill/

21. D R U P A L
R E S P O N S I V E I M A G E S I N

22. @ c h u m i l l a s
# d r u p a l d e v d a y s
R E S P _ I M G > P I C T U R E
B R E A K P O I N T
D R U P A L 7
A D A P T I V E I M A G E S
A I S ( A D A P T I V E I M A G E S T Y L E S )
C L I E N T- S I D E A D A P T I V E I M A G E
C O M M I T E R S : J e l l e _ S , a t t i k s , …

23. @ c h u m i l l a s
# d r u p a l d e v d a y s
R E S P O N S I V E I M A G E S ( P i c t u r e )
B R E A K P O I N T
Image,File,Field
M O D U L E S

24. @ c h u m i l l a s # d r u p a l d e v d a y s
Import/
create
breakpoints
Create
Image styles
Create
Responsive
Images
Apply
Responsive
Images
1 2 3 4
P R O C E S S

25. @ c h u m i l l a s # d r u p a l d e v d a y s
1
W H E R E
T H E M E S M O D U L E S
B R E A K P O I N T S

26. @ c h u m i l l a s # d r u p a l d e v d a y s
@media all and (min-width:851px)
{/*CSS*/}
1
B R E A K P O I N T S
W H A T A R E

27. I M A G E S T Y L E S
By @marcdrummond https://www.youtube.com/watch?v=3BF5WE_NOIU
P L A N
385px
480px
+25%
+25%
300px
385px
480px
240px
300px
+25%
300px480px
385px
240px
+25%
240px
385px
480px
2

28. @ c h u m i l l a s # d r u p a l d e v d a y s
Import/
create
breakpoints
Create
Image styles
Apply
Responsive
Images
1 2
3
4
3
SCALED IMG
PICTURE
R E S P O N S I V E I M A G E S
C R E A T E
3

29. @ c h u m i l l a s
# d r u p a l d e v d a y s
srcset=“large.jpg 1440w,
medium.jpg 960w,
small.jpg 480w”
sizes=“(min-width: 36em) 33.3vw,
src=“medium.jpg”
alt=“A road”>
100vw”
<img
S C A L E D I M A G E

30. https://vimeo.com/204517230

31. https://vimeo.com/204517211

32. <img src=“image-big.jpg 180w” />
<source srcset=“image-big.jpg 1x,
media=”(min-width: 30em)”>
image-big2x.jpg 2x”
</picture>
sizes=”(min-width: 30em) 33vw”>
<picture>
A R T D I R E C T I O N

33. https://vimeo.com/204517271

34. A R T
D I R E C T I O N

35. @ c h u m i l l a s # d r u p a l d e v d a y s

36. @ c h u m i l l a s # d r u p a l d e v d a y s
A R T D I R E C T I O N
R E S P O N S I V E I M A G E S
https://www.drupal.org/project/crop

37. @ c h u m i l l a s # d r u p a l d e v d a y s
I M A G E W I D G E T C R O P
https://www.drupal.org/project/image_widget_crop
F U L L C O N T R O L

38. https://vimeo.com/204517111

39. F U L L C O N T R O L
L O N G
I M P L E M E N T A T I O N
G I V E S
R E Q U I R E S

40. @ c h u m i l l a s # d r u p a l d e v d a y s
https://www.drupal.org/project/focal_point
F O C A L P O I N T
A U T O M A T E D

41. @ c h u m i l l a s # d r u p a l d e v d a y s
https://vimeo.com/204517287

42. B A S I C
A R T D I R E C T I O N
L O W E F F O R T
G I V E S
R E Q U I R E S
( R E A L L Y )

43. W Y S I W Y G

44. @ c h u m i l l a s # d r u p a l d e v d a y s
I N S I D E W Y S I W Y G
R E S P O N S I V E I M A G E S
https://www.drupal.org/project/inline_responsive_images
*https://www.drupal.org/node/2061377

45. @ c h u m i l l a s # d r u p a l d e v d a y s
• Plan your Responsive Images before
implementing.
• Use Focal Point if you don’t need full
control.
C O N C L U S I O N S

46. T H A N K S !
@ c h u m i l l a s

47. Q U E S T I O N S