This PR changes the library used for panning and zooming in the lightbox
module from timmywil/panzoom to avanka/panzoom.
The original (timmywil) version of the library contains a bug where if
you have a high resolution touchpad and Firefox and you zoom in and out
repeatedly on an image, the image may drift. avanka/panzoom does not
appear to display this behavior.
Restores the behaviour from before 5f83bc5cfe, where clicking
outside the image closes the lightbox, primarily by way of swapping
out the panzoom library.
Fixes: #21163.
This PR changes how the Pan & Zoom feature of images displayed in the
attachment lightbox are handled.
The existing method of using a canvas element is replaced by the Panzoom
library (timmywil/panzoom). This library is lightweight and has 0
transitive dependencies.
This fixes#20759 where the issue is that the viewport of a zoomed image
was not expanding to fill the available space on the page. Switching to
this new library also solves several other UX issues:
* Images are no longer blurred when in Pan & Zoom mode.
* The zoom behavior itself uses focal point zooming: zooming occurs
where the cursor is on the image instead of at the center of the
image, reducing the need for extra panning.
* CSS transitions are used for a more visually pleasing experience
when switching images, toggling zoom off, etc.
* The library has the potential to open other file types which
leaves that option open for us in the future.
We add postcss-import for night_mode.css only. This plugin inlines
the imports of external files, instead of letting the file go via
our usual webpack toolchain.
We do this so that we can use the postcss-prefixwrap plugin to scope
the third-party CSS properly and use it inside our night-mode class.
Fixes#10607.
[anders@zulip.com: Replace postcss-wrap with postcss-prefixwrap.]
Co-authored-by: Anders Kaseorg <anders@zulip.com>
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Along with the extraction, we do some simplifications of inserting
text in compose too. This same function can now be used in
compose formatting popover too.
We use "text-field-edit", which has good cross-browser `undo` /
`redo` support, to do the text replace for us instead of writing
that logic ourselves.
This guards against various mistakes, such as setting defaultMessage
to a computed expression that can’t be extracted.
https://formatjs.io/docs/tooling/linter/
Signed-off-by: Anders Kaseorg <anders@zulip.com>
As of commit bf056c8990 (#18251), this
is no longer used.
The PROVISION_VERSION bump is skipped because it’s already been bumped
several times since then, and waiting until the next one to actually
remove it is fine.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Our aim is to use this library to remove use of bootstrap-tooltip
for showing popovers and tooltips. This will remove our
dependency on bootstrap for showing tooltips. Thus, bootstrap
can be upgrade more independently.
We use GIPHY web SDK to create popover containing GIFs in a
grid format. Simply clicking on the GIFs will insert the GIF in the compose
box.
We add GIPHY logo to compose box action icons which opens the GIPHY
picker popover containing GIFs with "Powered by GIPHY"
attribution.
Anders Kaseorg
Austin Riba
Austin Riba
Aman Agrawal
Ganesh Pawar
Priyank Patel
Rohitt Vashishtha
Riken Shah