Commit Graph

10551 Commits

Author SHA1 Message Date
Anders Kaseorg 611f2a4321 js: Replace deprecated $.unbind method.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-22 12:20:23 -07:00
Anders Kaseorg 7ba3a26cd5 search: Replace deprecated jQuery event trigger shorthand.
$.fn.typeahead, on the other hand, returns the jQuery object back (not
the Typeahead object, which also happens to have a select method), so
this should be converted.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-22 12:20:23 -07:00
Anders Kaseorg a8bef38151 js: Fix incorrectly converted blur, click, focus method calls.
Commit a9ca5f603b (#15863) incorrectly
converted these.  e.target is a DOM element, not a jQuery element;
likewise for the elem parameter of activate_element.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-21 20:01:57 -07:00
Anders Kaseorg 2d8cab2cee stream_sidebar_actions: Rename toggle_home to toggle_stream_muted.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-21 18:26:20 -07:00
Anders Kaseorg e6a66063a9 stream_edit: Restore keyboard accessibility to checkboxes.
Listen to change events from the checkbox and pay attention to its
actual value, rather than simulating it by toggling booleans on click
events.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-21 18:26:20 -07:00
Anders Kaseorg 11bde22cb3 ui_util: Fix incorrectly converted focus method call.
Commit a9ca5f603b (#15863) incorrectly
converted this; el is a DOM element, not a jQuery element.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-21 18:26:05 -07:00
Gittenburg 45e19dd6b9 emoji: Rename :slight_smile: to 😄.
Zulip converts :) to the 1F642 Unicode emoji and promotes the same emoji
in the popular section of the emoji picker.

Previously Zulip has labeled 1F642 as "slight smile". While that name
conforms to the Unicode standard (which describes the code point as
SLIGHTLY SMILING FACE), it didn't match our use case of the emoji.

If a user types :) or selects the first smile in the emoji picker they
probably mean to express a regular "smile" and not a "slight smile",
which raises the question why they are only smiling slightly.

This commit relabels 1F642 as 😄 and our previous 😄 263A as
:smiling_face:. Note that 263A looks different in our three supported
emoji sets, so it is not suited to be our "default smile".

This change does not require a migration since our emoji system stores
both unicode points and names and handles name changes transparently.
2020-07-21 16:49:54 -07:00
jagansivam28 dac8f4f20f upload widget: Realign upload widget text to center. 2020-07-21 16:19:21 -07:00
jagansivam28 5f874a51f7 upload widget: Rename image upload widget upload text CSS class.
Previously, image upload widget delete text CSS class name was
`settings-page-upload-text`.
We can change the CSS class name to `image-upload-text`
so that the name can be more generic.
2020-07-21 16:19:21 -07:00
jagansivam28 ad0ff10598 upload widget: Rename image upload widget delete text CSS class.
Previously, image upload widget delete text CSS class name was
`settings-page-delete-text`.
We can change the CSS class name to `image-delete-text`
so that the name can be more generic.
2020-07-21 16:19:21 -07:00
jagansivam28 90cb72b103 upload widget: Rename image upload widget delete button CSS class.
Previously, image upload widget delete button CSS class name was
`settings-page-delete-button`.
We can change the CSS class name to `image-delete-button`
so that the name can be more generic.
2020-07-21 16:19:20 -07:00
jagansivam28 d1b0a12c2d upload widget: Rename image upload widget background css class. 2020-07-21 16:13:24 -07:00
jagansivam28 1702f7f802 upload widget: Change image upload widget CSS class name.
Previously, image upload widget CSS class name was
`avatar-icon-logo-settings`  it is not relevant to the widget so
we can change the CSS class name to `image_upload_widget`
so that the name can be more generic.
2020-07-21 16:13:23 -07:00
Tim Abbott 51d4d210d4 stream_edit: Use preventDefault and stopPropagation.
We should be using these patterns consistently in our click handlers.
2020-07-21 13:32:31 -07:00
SiddharthVarshney fb3484df52 stream-settings: Change checkbox UI.
These checkboxes will now be more consistent
in design as we have in other part of the UI.

e.preventDefault() is added inside the
stream_is_muted_clicked function will disable
the default checkbox and make sure click event
come from only <span> part of the checkbox.
2020-07-21 13:27:21 -07:00
SiddharthVarshney a179648f0b compose: Change style of `Press Enter to send` checkbox.
This checkbox style will now be more consistent
with checkboxes used in settings modal.
2020-07-21 13:27:21 -07:00
Anders Kaseorg 96dcc0ce6e js: Use ES6 object literal shorthand syntax.
Generated by ESLint.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-21 12:42:22 -07:00
Tim Abbott 9b8255d741 compose: Rename blur_textarea to better describe its purpose.
This blurs all the input elements in the compose area, not just the
textarea for the message body.
2020-07-21 12:08:40 -07:00
Gittenburg ed5a56ce53 composebox: Blur PM recipient input after close.
Previously the private_message_recipient input remained focused after
closing the composebox with Escape. On Firefox this resulted in it
gobbling up all further keyboard shortcuts until you clicked
somewhere. On Chromium this bug didn't occur because it automatically
blurs hidden inputs.

Introduced in 3a1bf04a56.

Fixes #15849.
2020-07-21 12:02:31 -07:00
Anders Kaseorg a9ca5f603b js: Replace deprecated jQuery event trigger shorthand.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-21 12:01:26 -07:00
Anders Kaseorg 4e42137bd9 js: Replace deprecated jQuery event handler shorthand.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-21 12:01:26 -07:00
Anders Kaseorg 97feea42a1 js: Replace deprecated jQuery.fn.hover.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-21 12:01:26 -07:00
Anders Kaseorg 25883d7827 copy_and_paste: Replace deprecated jQuery.fn.bind.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-21 12:01:26 -07:00
David Wood 366cb30db1 integrations: Re-add Canarytoken integration.
This commit re-adds the integration for canarytokens.org, now separate
from the primary Thinkst integration.

Signed-off-by: David Wood <david@davidtw.co>
2020-07-20 15:34:40 -07:00
David Wood f1c9d9c2fe integrations: Fix Thinkst Canary integration.
This commit fixes the Thinkst Canary integration which - based on the
schema in upstream documentation - incorrectly assumed that some fields
would always be sent, which meant that the integration would fail. In
addition, this commit adjusts support for canarytokens to only support
the canarytoken schema with Thinkst Canaries (not Thinkst's
canarytokens.org).

Signed-off-by: David Wood <david@davidtw.co>
2020-07-20 15:34:40 -07:00
Ryan Rehman 1696c9ac20 ui: Fix loading spinner glitch.
On calling `loading.make_indicator` for the second
time or more no spinner is being displayed.

This bug can be viewed on visiting a `near: 1` narrow
and the spinner for the newer messages is displayed
only once (i.e. the first time it is rendered), while
the logo is displayed every time.

This happens because `loading.destroy_indicator` sets
the css of that container to display: "none". This can
be removed as we are emptying the container just above.

Introduced in 953d475274.
2020-07-20 11:00:37 -07:00
Anders Kaseorg b65d2e063d js: Reformat with Prettier.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-17 14:31:25 -07:00
Anders Kaseorg 8046b6477a js: Remove extra consecutive spaces.
Prettier would do this anyway, but it’s separated out for a more
reviewable diff.  Generated by ESLint.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-17 14:31:25 -07:00
Anders Kaseorg 883e2fd325 js: Remove inner spacing from object literals.
We’re configuring Prettier with bracketSpacing: false.  Generated by
ESLint.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-17 14:31:25 -07:00
Anders Kaseorg a20c12366f js: Use inside variant of IIFE wrappers.
Prettier would do this anyway, but it’s separated out for a more
reviewable diff.  Generated by ESLint.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-17 14:31:25 -07:00
Anders Kaseorg 6924d501bc js: Indent case clauses in switch statements.
Prettier would do this anyway, but it’s separated out for a more
reviewable diff.  Generated by ESLint.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-17 14:31:25 -07:00
Anders Kaseorg f3726db89a js: Normalize strings to double quotes.
Prettier would do this anyway, but it’s separated out for a more
reviewable diff.  Generated by ESLint.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-17 14:31:24 -07:00
Anders Kaseorg 67773bc834 support: Move eslint-disable comment to Prettier-compatible position.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-17 14:30:52 -07:00
Anders Kaseorg 569b38fe34 js: Fix no-useless-escape errors.
Generated manually, since ESLint doesn’t have a fixer for this.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-17 14:30:52 -07:00
Gittenburg e15189b20c click_handlers: Don't focus links on middle / right click. 2020-07-16 10:50:40 +02:00
Anders Kaseorg ffdbf1afec favicon: Replace favicon PM indicator with red dot.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-16 01:37:08 -07:00
Anders Kaseorg c2f9db4602 logo: Update Zulip logo.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-16 01:37:08 -07:00
Gittenburg c42c2a9a22 click_handlers: Don't focus elements on dragstart.
Chrome focuses elements when you start dragging them,
which can confuse users because of our focus outline.
2020-07-16 01:32:26 -07:00
Tim Abbott 4f9f6b18e7 css: Fix recipient bar stream hover text color in night theme.
It's unclear what the purpose of this logic was, but testing confirms
that the text color is as expected without this in the day theme (so
it's likely a relic of an old design) and removing it fixes the hover
text being overridden to white in the night theme.
2020-07-16 01:14:03 -07:00
Aman Agrawal ddef014eea recent_topics: Patch colors.
Don't allow bootstrap to override row hover colors.
Show unread topics in same color as others.
2020-07-15 23:57:58 -07:00
Rohitt Vashishtha ea1c178305 markdown: Format spoilers for desktop notifications.
We hide the spoiler content in browser/desktop notifications.

Note: its not worth adding zjquery tests for this bit of code because
the tests do not operate on the actual data and are likely to get stale
if we change the syntax for spoilers.
2020-07-15 23:30:28 -07:00
Anders Kaseorg e60ae89caa logo: Delete unused old logos and screenshots.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-15 20:56:58 -07:00
Anders Kaseorg c080b4da06 favicon: Remove ancient browser workarounds.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-15 20:56:58 -07:00
YashRE42 78d511fd03 navbar: Clean up implementation of tab_bar.narrow_description hover.
This handler adds a neat little effect whereby hovering over the
clickable region to open the navbar triggers the search_icon hover
effect and is a neat little visual cue about what happens onClick.

The previous implementation was slightly messy because it fetched the
color and applied it via ".css(". This commit cleans it up by creating
and using the class "search_icon_hover_highlight" instead. We also
make the selectors more specific, ensuring they target children of
"#tab_bar", this was so because it was reasonable to expect someone to
define eg `search_closed` elsewhere and we wanted to prevent bugs when
that happened.
2020-07-15 18:56:06 -07:00
YashRE42 b554333421 night_mode: Fix search_icon hover regression.
In 9046fc1032 we updated the navbar.html
file so that our css selectors did not override each other and cause
annoying problems.

Unfortunately this caused a regression in night mode where the
search_icon didn't have the correct hover effect.

This fixes the regression by adding the selectors.
2020-07-15 18:56:06 -07:00
Tim Abbott a785a74fd0 timerender: Fix use of page_params.timezone.
The page_params.timezone feature is perhaps a misfeature, but
importantly it's not what is used to display the time in the message
feed (it's mainly used to show others your timezone).

Given that reality, we shouldn't use it for a feature whose whole
purpose is to display the time using the same timezone we use in the
message feed.

Fixes #15790.
2020-07-15 17:01:42 -07:00
Sebastian Morr bb12e407d2 timestamp: Observe user's 24-hour clock setting.
Fixes #15791.
2020-07-15 17:01:42 -07:00
Gittenburg 797fb00791 styles: Hide focus outline for active links.
We still want it everywhere for accessibility.
2020-07-15 12:37:27 -07:00
Aman Agrawal 5d5434ec2f recent_topics: Update topics post message deletion.
Delete stored topic data in `recent_senders` and `recent_topics`
about the message's topics and re-render them. The process is similar
to topic editing. See `recent_senders.process_topic_edit` for
logical details.
2020-07-15 12:35:24 -07:00
Tim Abbott 5150e1f8cf css: Limit recent focus handler change to popovers.
In 9648e64d23, we added a clear outline
around focused link elements in popovers.

This was a good fix for popovers, but it's distracting for the
experience of clicking links in the sidebars and message feed.
2020-07-15 12:12:01 -07:00
Tim Abbott 35023824b0 condense: Add missing stopPropagation/preventDefault.
This fixes an issue where an open compose box would close when
clicking to expand a condensed message.

Fixes #15808.
2020-07-15 10:42:22 -07:00
Aman Agrawal 19b7ef3888 list_render: Use simplebar container to track scroll event.
We have changed our all instances of list_render to use
simplebar and thus, we will now use simplebar container
to track scroll event for all the lists created by
list_render.

This fixes the bug of new subscribers not rendering on
scrolling at the end of subscriber list in stream settings
and similar bug in some other lists also.

This commit also removes scroll_util.get_list_scrolling_container
function as this is no longer used.

Fixes #15637.
2020-07-15 10:16:56 -07:00
sahil839 d41f66a917 muted_topics: Rerender list only if modal is opened and section is loaded.
We should rernder the muted topics list in settings only if the settings
modal is opened and the muted topics section is loaded.
2020-07-15 10:16:56 -07:00
Aman Agrawal c1b047b0d1 recent_topics: Use simplebar for scrolling. 2020-07-15 10:16:56 -07:00
Aman Agrawal 57b6f9179b settings: Fix simplebar scrollbar in org settings dropdown.
This commit fixes the dropdown_list_widget to use simplebar for
scrolling.

It was not being used because data-simplebar should not be inserted
to the element being rerendered. This commit adds a new element
wrapping 'dropdown-list-body' which was being rerendered and
data-simplebar is added to that new element 'dropdown-list-wrapper'.

Also, there should always be a max-height property on data-simplebar
element and it is also added in this commit.

There is also a change to set margin of 10px only on the first div
element and which is direct children of organization-settings-parent
element. This is correct because we only want margin to add some space
between the heading of subsection and the first setting of that
subsection. Previously, the margin was being added to first div of all
the other child containers also and this was adding unnecessary margin
to the first div element of different simplebar containers.
2020-07-15 10:16:56 -07:00
sahil839 6259456df1 settings: Do not use list_render for stream specific notification settings.
We do not need to use list_render for displaying list of streams specific
notification settings, as this is not scrollable and we do not provide
option to sort or filter this list as well.

After this change, all our list_render instances will be using simplebar
and we can change the code accordingly to fix the behaviour of scrolling.
2020-07-15 10:16:56 -07:00
Aman Agrawal c4bbdf040e recent_topics: Fix search clear icon overflowing in next line.
Sometimes, the clear icon overflows on the next line on specific
widths. This makes sure it never happens by wrapping them in a
block.
2020-07-15 10:00:52 -07:00
Aman Agrawal d39b969c64 recent_topics: Add background color to avatars extra count. 2020-07-15 10:00:52 -07:00
Aman Agrawal 71cae3370c recent_topics: Hide participants and last msg time on <750px width.
This ensures the UI experience on <750px width doesn't look
like too many things packed in a small space.
2020-07-15 10:00:51 -07:00
Aman Agrawal e7a65fa688 recent_topics: Show action buttons next to topic.
We remove the action column and show action buttons next to topic
after unread count (if present). This save us a lot of extra space
on small window sizes.
2020-07-15 09:59:37 -07:00
Aman Agrawal 1ee09799e6 recent_topics: Don't wrap last message header and stream names. 2020-07-15 09:59:37 -07:00
Aman Agrawal 8951f77e5d recent_topics: Show read topics in a darker shade. 2020-07-15 09:59:37 -07:00
Gittenburg 9648e64d23 styles: Make focus outline work reliably.
For a:focus Bootstrap sets the following rules:

    outline: thin dotted #333;
    outline: 5px auto -webkit-focus-ring-color;

Firefox does not know -webkit-focus-ring-color and falls back to the
previous rule, making the outline invisible in darkmode.

Chromium has a bug[1] that makes outline: auto invisible when focussing
elements programmatically (which we do for the up & down arrow keys).

[1]: https://bugs.chromium.org/p/chromium/issues/detail?id=1105822

Fixes #15768.
2020-07-15 09:57:19 -07:00
Gittenburg 953d475274 settings: Fix saving indicator glitch.
jQuery's fadeOut() sets display: none using inline CSS.
This was overriden by .alert-notification since it used !important
to override the display: block set in loading.js.  Removing the latter
allows us to remove the !important, and doesn't seem to break anything.

Fixes #15759.
2020-07-14 16:29:39 -07:00
Anders Kaseorg f1d475206e search: Fix ESLint prefer-arrow-callback error.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-14 12:38:25 -07:00
Tim Abbott cb54e30832 Revert "search: Fix blur event handler for `search_query_box`."
This reverts commit 63643c9d9d.

As the commit mentions, it makes a UI change for legacy search which
has largely been considered a regression.  We've been running with
this reverted in zulip.com essentially since it was first merged.
2020-07-14 12:26:28 -07:00
Tim Abbott 42d601e214 help: Fix exception with invalid fragment causing bogus extra scrollbars.
Apparently, our scrollbar logic crashed with an invalid URL fragment
(hash), which resulted in initialization not completing and thus the
logic failing.

In my view the root issue here is that we're not doing a good job of
catching JavaScript exceptions in portico pages.

Fixes #15706.
2020-07-14 12:19:52 -07:00
Gittenburg bc1f2fa80e reactions: Add back missing e.stopPropagation().
In 42f20e81be I fixed an edge case but
also accidentally made clicking on reactions open the compose box.

This commit adds back the e.stopPropagation(); and explicitly hides the
emoji picker popover, to address the inconsistency fixed in the previous
commit.
2020-07-14 00:38:36 -07:00
YashRE42 75cfd886b7 navbar: Fix disappearing left border when search opens.
Previously, we were experiencing a bug that caused the left border of
the searchbox/tab_bar to disappear when the searchbox was opened. This
bug was a result of the following changes:
- 4cdd7aed2b accidentally added this line
  as right: 2; instead of right: 2px;
- 46c966576d fixed this line to be
  right: 2px; but caused the regression.

This commit fixes the bug by deleting this line.
2020-07-14 00:37:40 -07:00
SiddharthVarshney 972a1019cf message_controls: Replace chevron-down with ellipsis-v icon.
After migrating chevron-down with ellipsis for
sidebar-menu, this commit will do the same for
message narrow for consistency.
2020-07-13 16:12:26 -07:00
SiddharthVarshney 1ea9e2841c message_controls: Make click area for icons more uniform.
Previously user have to click pixel perfect on the message controls
icons to achieve the click action.

This commit will uniformly increases the click target
area for the icons.

Tweaked by tabbott to avoid some weird glitches.
2020-07-13 16:12:06 -07:00
SiddharthVarshney d0fd0cae3f message-controls: Use <i> tag for starred message icon.
Throughout the codebase we use <i> tag for icons.
This commit will add <i> tag inside the starred message
div and fa classes are now used with this <i> tag.

The starred message div is now consistent with other
message_controls divs.

Tweaked by tabbott to use the name star_container for better
readability.
2020-07-13 15:59:12 -07:00
YashRE42 ae7ff04fe6 navbar: Purge tab_list label from code base.
Prior to commit eb4a2b9d4e the center
area of the navbar was based on a structure that appended crumbs or
"tabs" as <li>s, forming a tab_bar and a tab_list.

However, in eb4a2b9d4e we apply a new
style and structure to the navbar which lets go of the convention of
tabs. Hence, we'd like to purge the tab_bar and tab_list labels from
our code base.

It would have been nicer if we could simply purge tab_bar from the
codebase and rename "#tab_list" so that we have an anchor and wrapper
structure in the html, but dropping the float: left on tab_bar causes
some confusing problems such as causing the horizontal border to
disappear and the search_box to shift out of its intended position and
so its simpler to get rid of tab_list from our code base first.

This commit:
- Removes the #tab_list wrapper div from tab_bar.hbs.
- Removes any #tab_list selectors from night_mode.scss so that they
  simply target based on "#tab_bar" instead of "#tab_bar #tab_list".
- Removes tab_list selectors from zulip.scss, so that #tab_list
  attributes now apply to the #tab_bar, in the process we drop the
  duplicated width property and reorder the attributes.
- Replaces all mention of #tab_list with #tab_bar in JS files.
2020-07-13 15:39:36 -07:00
YashRE42 632f62c8b6 navbar: Remove padding-top from #tab_bar CSS because it defaults to 0.
Prior to commit eb4a2b9d4e the center
area of the navbar was based on a structure that appended crumbs or
"tabs" as <li>s, forming a tab_bar and a tab_list.

However, in eb4a2b9d4e we apply a new
style and structure to the navbar which lets go of the convention of
tabs. Hence, we'd like to purge the tab_bar and tab_list labels from
our code base. This commit pushes us towards that goal by simplifying
the future merge of the two CSS labels.
2020-07-13 15:39:36 -07:00
YashRE42 a050061494 navbar: Drop letter spacing from #tab_bar in CSS.
Prior to commit eb4a2b9d4e the center
area of the navbar was based on a structure that appended crumbs or
"tabs" as <li>s, forming a tab_bar and a tab_list.

However, in eb4a2b9d4e we apply a new
style and structure to the navbar which lets go of the convention of
tabs. Hence, we'd like to purge the tab_bar and tab_list labels from
our code base. This commit pushes us towards that goal by simplifying
the future merge of the two CSS labels.

The letter-spacing attribute was set to its default value and so we
remove it and rely on the default.
2020-07-13 15:39:36 -07:00
YashRE42 f0882e8539 navbar: Remove unnecessary overflow attributes from #tab_bar CSS.
Prior to commit eb4a2b9d4e the center
area of the navbar was based on a structure that appended crumbs or
"tabs" as <li>s, forming a tab_bar and a tab_list.

However, in eb4a2b9d4e we apply a new
style and structure to the navbar which lets go of the convention of
tabs. Hence, we'd like to purge the tab_bar and tab_list labels from
our code base. This commit pushes us towards that goal by simplifying
the future merge of the two CSS labels.

Currently the #tab_bar is just a container for the #tab_list and the
 #tab_list handles the overflow attributes and so these do not serve
any purpose.
2020-07-13 15:39:36 -07:00
YashRE42 e4f1dfe80b navbar: Remove height attribute from #tab_bar CSS.
Prior to commit eb4a2b9d4e the center
area of the navbar was based on a structure that appended crumbs or
"tabs" as <li>s, forming a tab_bar and a tab_list.

However, in eb4a2b9d4e we apply a new
style and structure to the navbar which lets go of the convention of
tabs. Hence, we'd like to purge the tab_bar and tab_list labels from
our code base. This commit pushes us towards that goal by simplifying
the future merge of the two CSS labels.

We have the same selector within #tab_list and the duplication is
unnecessary.
2020-07-13 15:39:36 -07:00
YashRE42 437b9a1a90 navbar: Refactor >:nth-last-child(2) style to use scss nesting. 2020-07-13 15:39:36 -07:00
YashRE42 87c9d527ef navbar: Add comment in scss explaining the nth-last-child(2).
Ideally we would not be relying on something that requires a 4 line
comment, and also makes it harder to add more static elements at the
end of the navbar, but this block should be acceptable for now.

One alternate would be a "grow-1" class or similar but we might need
to think that through.
2020-07-13 15:39:36 -07:00
YashRE42 bf91dad438 navbar: Simplify narrow_description conditional in hbs template.
Previously, we had the entire div within the conditional, instead of
just the contents, which were the only variable elements.

This change moves the conditional over just the contents of the div
and improves readability.
2020-07-13 15:39:36 -07:00
YashRE42 25765faf58 navbar: Live update sub_count.
Previously, the navbar sub count would not live update as users
subscribed or unsubscribed, this commit adds the relevant calls in
stream events.

It would have been better to just have a single call within
server_events_dispatch but it seems difficult due to the way of
mark_subscribed and mark_unsubscribed are structured.

stream_events.mark_unsubscribed conditionally calls
subs.update_settings_for_unsubscribed which calls
subs.rerender_subscriptions_settings and as such handles the update
for the subscriptions modal on its own. Hence, we simply rely on the
stream_data.update_calculated_fields to ensure the subscriber counts
are updated and make a call to
tab_bar.maybe_rerender_title_area_for_stream(sub).

stream_events.mark_subscribed is similar.
2020-07-13 15:38:15 -07:00
YashRE42 0667925c93 refactor: Extract maybe_rerender_title_area_for_stream(modified_sub).
Previously, we had the lines from this block being duplicated in all
the stream update paths, which is a little brittle.

Hence, in this commit, we extract it out with a comment explaining
what it does and call it in all the duplicated spots.
2020-07-13 15:36:53 -07:00
Gittenburg 53c66fd9c4 message_header: Fix date alignment in PMs.
My previous message_header fix
0b4568d249
accidentally changed the alignment of dates in private messages (so that
it was inconsistent to the alignment in other narrows).
2020-07-13 13:26:54 -07:00
sahil839 fff7fe21cb stream_edit: Use narrow_state.stream_sub instead of narrow_state.stream.
We use narrow_state.stream_sub instead of narrow_state.stream to directly
get the sub object instead of stream name, while subscribing to a stream
from the stream narrow.
2020-07-13 13:09:17 -07:00
sahil839 a0d2c7db16 stream_data: Modify is_user_subscribed to use stream id.
This commit changes stream_data.is_user_subscribed to use stream id
instead of stream name.
We are using stream ids so that we can avoid bugs related to live
update after stream rename.
2020-07-13 13:09:17 -07:00
Ryan Rehman 14c869d803 message send: Update failed message ui on re-send success.
We have logic in place to update the ui for re-sending messages
on recieving the acknowledgement from the server on that API call.

However, if the acknowledgement is recieved through the get events
request before the `on_success` of `resend_message`, the message
gets re-rendered allowing the failed message actions to be clickable.

Now, we update the ".message_failed" ui for both cases. This helps
in preventing the "Trying to get local_id from row that has reified
message id" exception.

Fixes #15351.
2020-07-13 12:29:33 -07:00
Aman Agrawal 55f80a2502 recent_topics: Don't render topic of deactivatedstreams.
Fixes error when trying to render topic of a deactivated stream in
the Recent Topics widget.
2020-07-13 11:22:43 -07:00
Aman Agrawal 46c966576d scss: Fix broken rules. 2020-07-13 10:46:34 +05:30
Aman Agrawal c32f27a05d hash_util: Show error if url is invalid.
For urls we cannot handle, we inform user via a nice
error message.

See comment in decodeHashComponent for some of the cases it
fixes for us.
2020-07-10 11:01:31 -07:00
Aman Agrawal f97d35ebd2 ui_report: Use fadeOut to hide error.
fadeTo is not a good method to hide elements since it sets
opacity to 0 in which the element still can consume space and
be clickable. We set it's display to None using fadeOut method.

Also, allow this method to be called via ui_report.error.
2020-07-10 11:01:31 -07:00
Gittenburg 0b4568d249 message_header: Fix overlap on mobile with flex.
Previously .recipient_row_date was positioned absolutely, allowing it to
overlap with the topic name on narrow screens. This can be solved by
using flexbox. To implement the empty space between the bar controls and
the date on wider screens we move the date outside of the bar controls
(which also makes more sense semantically since the date isn't a
control).

Fixes #15501.
2020-07-09 13:13:38 -07:00
sahil839 67ea4bd937 stream: Fix incorrect dispaly of stream notifications settings.
The stream notification settings checkboxes were not checked
even when the notifications were turned on for the stream.
This was happening because we were passing stream name to
receives_notifications instead of stream id.

This commit fixes the bug by passing stream id to
receives_notifications. This change should have been done
in f3604fb while refactoring receives_notifications to use
stream id instead of name.
2020-07-09 12:46:44 -07:00
Vinit Singh bf31d92fa7 emoji_picker: Fix keys not working if search yields no results.
As a consequence of commit 1113589b9d the backspace key and some other
keys did not respond if the search yielded no results.
This change fixes that bug.
2020-07-09 11:55:13 -07:00
Aman Agrawal 18bebbf290 recent_topics: Set correct container as scrolling container.
This fixes the bug of extra topics not being rendered on scrolling.
list_render uses `max-height` to determine which container is being
scrolled upon. Set the `max-height` on the scrolling container of
recent topics to help list_render identify it.
2020-07-08 17:51:27 -07:00
Vinit Singh 8b54cce833 emoji_picker: Improve emoji picker search results.
This sorts the emoji picker's search results using the same
`typehead.sort_emojis` function as the compose typehead.

Resolves #15694.
2020-07-08 13:47:03 -07:00
Gittenburg 6e5fb85ade refactor: Improve method name in emoji_picker. 2020-07-08 13:25:49 -07:00
Gittenburg 9f20fdc87a refactor: Replace getter with const in emoji_picker. 2020-07-08 13:25:49 -07:00
Gittenburg 08b9aacb88 hotkey: Detect arrow keys while holding shift.
This is useful for the emoji-picker where holding down shift lets you
select multiple emojis. Otherwise when selecting multiple emojis with
the keyboard shortcuts you would need to release shift everytime you
wanted to navigate with the arrow keys.
2020-07-08 13:25:49 -07:00
Gittenburg 5bb10036b5 emoji_picker: Allow selecting multiple while holding Shift.
We detect shift with event.shiftKey so we need to pass the event around.

Fixes #8465.
2020-07-08 13:25:49 -07:00
Gittenburg 1113589b9d emoji_picker: Move enter handling into picker.
This means the picker no longer has to export
is_composition(emoji) and toggle_selected_emoji().
2020-07-08 13:22:24 -07:00
Gittenburg 42f20e81be emoji_picker: Fix inconsistency in edge case.
Previously clicking on an existing message reaction (outside of the
emoji picker) while having the emoji picker open, removed the reaction
without updating the highlighting of the reacted emoji in the emoji
picker.

The emoji picker already is already closed when clicking outside.
The message reaction click handler however previously stopped the event
propagation, leaving the picker open, allowing the inconsistency.
2020-07-08 13:21:53 -07:00
sahil839 9ccb33a894 subs: Fix bug of subscribing/unsubscribing user by clicking on stream row.
There is a bug when clicking on the stream row in stream settings page
subscribes/unsubscribes the user from stream. The ideal behaviour
should be that user should be subscribed/unsubscribed only
when user clicks on tick icon. The buggy behaviour is visible only after
clicking the tick icon once.

This is because clicking on tick is adding sub_unsub_button class to the
stream row, while it should be added only to the ".check" element to
re-enable the button to handle requests.

This commit fixes the bug by adding the "sub_unsub_button" class to
".check" element only and not to the stream row and same change
is done for removing the "sub_unsub_button" class also.
2020-07-07 17:12:01 -07:00
sahil839 48eba187bb stream_edit: Fix bug in subscribing/unsubscribing from stream settings.
Subscribe/Unsubscribe button in the right section of stream settings
page is not working because the target element in click handler was
changed to 'check.sub_unsub_button' in c234b4f2 and the button in
the right section with class 'sub_unsub_button' also uses the same
click handler.

This commit reverts c234b4f2 and the bug of subscribing/unsubscribing
the user by clicking on stream row in the stream settings page, which
c234b4f2 intended to fix will be fixed in next commit.
2020-07-07 17:12:01 -07:00
Tim Abbott 8672805ddf compose: Use rendered_markdown.update_elements for previews.
As we add more features where rendered_markdown.update_elements does
something useful, it'll become important to run this code everywhere
we render markdown in the DOM.

One can see in this case that we had actually copied one hunk of
rendered_markdown.update_elements years ago, before we extracted it as
an independent function; we get to delete that copy.

Fixes #15500.
2020-07-07 14:37:09 -07:00
sahil839 04ef6ba63a compose: Set wildcard_mention for message before further validation.
We do not show the warning while sending messages to announce
stream if there is a wildcard mention in the message (i.e.
when wildcard_mention != null)

There are two cases where we should ideally show the warning
but we don't-

 - When there is no wildcard mention in the message and
   wildcard_mention is set to undefined (initial value of
   wildcard_mention).
   This is because "wildcard_mention != null" returns true for
   this case and thus the warning is not shown, assuming the
   message to have wildcard mention.

 - When previous message had a wildcard mention and now a message
   is being sent with no wildcard mention.
   This is because the condition "wildcard_mention != null" is
   checked with the previous value of wildcard_mention and not
   with the value according to current message content, and thus
   the warning is not shown, assuming the message to have wildcard
   mention.

This commit changes the code to set wildcard_mention from the
latest message content before performing other validations and
thus solves the problems described above.
2020-07-07 10:42:55 -07:00
Rohitt Vashishtha 912e372c4e markdown: Remove !avatar() and !gravatar() syntax.
This particular commit has been a long time coming. For reference,
!avatar(email) was an undocumented syntax that simply rendered an
inline 50px avatar for a user in a message, essentially allowing
you to create a user pill like:

`!avatar(alice@example.com) Alice: hey!`

---

Reimplementation

If we decide to reimplement this or a similar feature in the future,
we could use something like `<avatar:userid>` syntax which is more
in line with creating links in markdown. Even then, it would not be
a good idea to add this instead of supporting inline images directly.

Since any usecases of such a syntax are in automation, we do not need
to make it userfriendly and something like the following is a better
implementation that doesn't need a custom syntax:

`![avatar for Alice](/avatar/1234?s=50) Alice: hey!`

---

History

We initially added this syntax back in 2012 and it was 'deprecated'
from the get go. Here's what the original commit had to say about
the new syntax:

> We'll use this internally for the commit bot.  We might eventually
> disable it for external users.

We eventually did start using this for our github integrations in 2013
but since then, those integrations have been neglected in favor of
our GitHub webhooks which do not use this syntax.

When we copied `!gravatar` to add the `!avatar` syntax, we also noted
that we want to deprecate the `!gravatar` syntax entirely - in 2013!

Since then, we haven't advertised either of these syntaxes anywhere
in our docs, and the only two places where this syntax remains is
our game bots that could easily do without these, and the git commit
integration that we have deprecated anyway.

We do not have any evidence of someone asking about this syntax on
chat.zulip.org when developing an integration and rightfully so- only
the people who work on Zulip (and specifically, markdown) are likely
to stumble upon it and try it out.

This is also the only peice of code due to which we had to look up
emails -> userid mapping in our backend markdown. By removing this,
we entirely remove the backend markdown's dependency on user emails
to render messages.

---

Relevant commits:

- Oct 2012, Initial commit        c31462c278
- Nov 2013, Update commit bot     968c393826
- Nov 2013, Add avatar syntax     761c0a0266
- Sep 2017, Avoid email use       c3032a7fe8
- Apr 2019, Remove from webhook   674fcfcce1
2020-07-07 10:39:44 -07:00
Sanskar Bajpai bd6fe786cf date_row: Update color via update_table_stream_color.
Previously, the function update_table_stream_color did not update the
color of the date_row when it appeared within a topic.  This was
incorrect because it meant that a small piece of the border to the
left of the message box would be left to the previous color when the
stream color was updated.  This commit resolves the issue by adding an
update.

Fixes #15197.
2020-07-06 18:37:35 -07:00
Rohitt Vashishtha c87446a8de timestamp: Extract and improve timerender.get_timestamp_for_flatpickr.
To make the typeahead code more readable, we extract this function to
timerender. We also improve the logic to be more readable, and add tests
to confirm its validity.
2020-07-06 15:53:56 -07:00
Rohitt Vashishtha 5d1365b265 minor: Format comments to be sentences and fix typo. 2020-07-06 15:53:56 -07:00
Rohitt Vashishtha 0b510cd66d timestamp: Hide timestamp forrmat errors in local echo. 2020-07-06 15:53:56 -07:00
Rohitt Vashishtha 1f765b41ce timestamp: Throw error if frontend cannot parse backend supplied time.
We have moved our invalid timestamp logic to use timestamp-error class,
however, if there are any valid outputs by the backend markdown that
the frontend considers invalid, we want to debug them. This commit
adds tooling to ensure we log those error messages.
2020-07-06 15:53:56 -07:00
Rohitt Vashishtha 088b8e28c3 timestamp: Translate 'invalid time format' message on the frontend. 2020-07-06 15:53:56 -07:00
Rohitt Vashishtha 732ec3c0e6 timestamp: Change syntax to `<time:timestammp>`.
We had been using !time() syntax for timestamps so far. Since its
an unreleased feature, we can make changes without affecting many
people.

Fixes #15442.
2020-07-06 15:53:56 -07:00
Rohitt Vashishtha ca73d81bba timestamp: Extract show_flatpickr() in composebox_typeahead.
The time_jump typeahead code now reads like other typeaheads,
uncluttered with the flatpickr logic.
2020-07-06 15:53:56 -07:00
Ryan Rehman c234b4f254 subscriptions: Fix buggy behaviour of click event handlers.
This commit fixes a bug where clicking on a stream row on the left
in the subscriptions table called the ".stream-row" as well as the
".sub_unsub_button" click events in `stream_edit.js`.

This caused the stream subscription to toggle everytime the row was
clicked. Also, this bug is only observed if the ".sub_unsub_button"
had been clicked first.
2020-07-06 15:43:41 -07:00
Ryan Rehman ca99d62b4e subscriptions: Fix scrolling of streams list.
The previous element passed was a simplebar container which calculated
the incorrect height, thus `scroll_util.scroll_element_into_container`
had no effect.
2020-07-06 15:43:41 -07:00
Ryan Rehman 23f807bf13 subscriptions: Remove unused event handler.
".subscribed-button" was added in
ca4e6a0ff8.
In commit 368b585980,
it was replaced by the "check" class.
2020-07-06 15:43:41 -07:00
Ryan Rehman 3b5ba6b2c1 message list: Change locally echoed message ids synchronously.
There is a bug and race issue that occurs when a message is selected
while we are in the process of reifying a locally echoed message,
raising the "Selected message id not in MessageList" error.
The code flow to get the exception is as follows:

* A user sends a message to the current narrow we are in.
* Before the new message event is received, we sent a message to
  the same message list which renders it with a locally echoed id.
* One of the ways of getting the exception is to already have the
  locally sent message selected, before receiving an acknowledgment
  from the server.
* Thus the Message List Data's `selected_id` now points to the new
  message id. The exception is raised on entering the `was_selected`
  if block inside `message_list_view` which tries to re-select the
  message.

Updating the `_rerender_message` code for this special case won't fix
the entire bug because, as mentioned above there are other ways of
getting the exception:

Ideally, after all our synchronous work (`echo.process_from_server`)
has completed we would expect the re-order and re-render work of the
`change_message_id` would occur first, due to the timer of the
setTimeout being set to 0.

However as evident from the race condition existing, this isn't always
the case. `change_message_id` function is responsible for 3 things:
updation, re-ordering and re-rendering.
The first one which is responsible for updating the message list's
local cache, occurs synchronously while for the latter two, they both
occur asynchronously.

Before the setTimeout which is responsible for the latter two actions,
is encountered the user might select the message by clicking or more
commonly by scrolling, which causes this message selection event to be
ahead of the setTimeout in the callback queue.
During this time frame, our race condition takes place.

And even though the message id is updated it's Message List is not
in the correct sort order, which leads to `closest_id` !== `id` in
`MessageList_select_id` being true and raising the exception.

Now, we only asynchronously call the re_render function, to guarantee
the data is always correct and UI updates should be done at the end.

Extended by tabbott to comment the setTimeout call.

Fixes #15346.
2020-07-06 15:36:33 -07:00
Ryan Rehman 7a8ebfb5eb message list: Update `MessageListData` API by extracting `reorder_messages`.
`change_message_id` in `message_list_data.js` is only called from
one place, the `change_message_id` function in `message_list.js`.
2020-07-06 15:31:26 -07:00
sahil839 66dc712830 compose: Modify validate_stream_message to check invalid stream name early.
We change validate_stream_message to check the existence of stream from
the stream name in compose box early and we then pass stream_id or the
obtained sub objects accordingly to other validate functions.

Passing stream_id or sub objects to these functions, enables us to use
stream_id instead of stream name in stream_data.get_subscriber_count.

stream_data.get_stream_post_policy is also removed as we only used it in
validate_stream_message_policy, but we do not need it now as we can get
stream_post_policy directly from sub object obtained by early check of
valid stream name.
2020-07-06 15:30:01 -07:00
sahil839 c4c1790b00 compose: Add data-stream-id field in compose_invite_users.
This commits add data-stream-id attribute to the compose_invite_users
template. This helps in avoiding the error that occured if user
clicked the link after renaming of stream.

As a result of above changes, the checks for empty and invalid stream
name in compose box are done in warn_if_mentioning_unsubscribed_user
function instead of needs_subscribe_warning function.
2020-07-06 15:30:01 -07:00
Aman Agrawal c947be5411 msg_edit_form: Show checkboxes in separate lines if present. 2020-07-06 12:38:58 -07:00
Gittenburg 20bf8f41d9 streams: Format subscriber count according to browser locale.
If a channel has a thousand subscribers this commit results in the count
being displayed with a thousands separator, e.g. with English locale you
get 1,000 instead of 1000.
2020-07-06 11:27:43 -07:00
jagansivam28 c5818a554a avatar: Fix user avatar delete button bug.
Since we migrated to `image_upload_widget.hbs`
for upload widget's so we have to access those widget's elements
according to the `image_upload_widget.hbs` new CSS class names.

We need to access delete button element with
`#user-avatar-upload-widget .settings-page-delete-button`
not with old CSS id `#user_avatar_delete_button`.
2020-07-03 17:32:28 -07:00
jagansivam28 9164247733 settings CSS: Remove unwanted CSS in `settings.scss`.
When we extract common HTML template (`image_upload_widget.hbs` )
for user avatar, realm day/night logo and  realm icon widget's
lot of new CSS are created to match image_upload_widget.hbs and
old CSS are preserved in `settings.scss`. This commit removes all
unwanted or unused CSS in `settings.scss`.
2020-07-03 17:32:28 -07:00
Anders Kaseorg e014ea966a eslint: Enable comma-dangle for functions.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-03 16:55:51 -07:00
Anders Kaseorg a79322bc94 eslint: Enable prefer-arrow-callback.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-03 16:55:50 -07:00
Anders Kaseorg 615b7fcc2c eslint: Enable arrow-body-style.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-03 16:55:50 -07:00
Anders Kaseorg b0253c5a2e eslint: Enable arrow-parens.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2020-07-03 16:53:39 -07:00
Steve Howell ad8e79a22e urls: Support simple user_id-based slugs. 2020-07-03 16:50:18 -07:00
Steve Howell 2574efde3d urls: Support simple integer stream slugs.
Fixes #15402
2020-07-03 16:50:18 -07:00
sahil839 f73ecfc2f7 settings_panel_menu: Remove "settings-wrapper" class from jquery selectors.
This commit changes the jquery selector to remove "settings-wrapper" class.
There is no element in the templates with this class.
2020-07-03 16:48:06 -07:00
Gittenburg 3a973b15ee settings: Fix modal out of screen on mobile.
For the email and full name modals we simply change width to max-width.

The password modal used a flex-row class for no apparent reason,
the class wasn't used anywhere else and removing it fixes the UI bug.

Fixes #15311.
2020-07-02 13:47:26 -07:00
Rohitt Vashishtha a47a3defa9 minor: Tag a string for translation. 2020-07-02 10:59:17 -07:00
Vishnu KS 4c6350fa4b billing: Add option to request a sponsorship in /upgrade. 2020-07-01 16:45:38 -07:00
Tim Abbott 606c2acefe click_handlers: Fix clicking on elements inside links.
While highlights was the only case where this came up in the normal
message feed, we might in the future have other elements inside a
link, and we don't want those to ever eat the click.

I don't think there's a real performance concern here; fundamentally,
this is the handler for the user clicking, it can traverse a few DOM
elements.
2020-07-01 15:39:16 -07:00
Tim Abbott 7f298147c0 click_handlers: Move and refactor is_clickable_message_element. 2020-07-01 15:35:02 -07:00
Tim Abbott dd3767981d spoilers: Fix selections and simplify link implementation. 2020-07-01 15:26:48 -07:00
Dylan Nugent f3011d3b74 spoilers: Improve UI for spoilers.
Adds support for clicking anywhere on the header (except in a link) to
expand a spoiler block. Also fixes jumpy animation glitch on spoiler
collapse.

Fixes #15414.

Co-authored-by: Sara Gulotta <sgorecki@gmail.com>
2020-07-01 15:16:47 -07:00
SiddharthVarshney aefd8f0de2 navbar: Fix UI bugs in right column of nav header.
Fixes the click target for the gear icon by providing
a proper rectangular area around it.

Minor UI adjustments of gear icon and expanded
navbar-search for small size devices.

Fixes: #15222.
2020-06-30 16:51:55 -07:00
Aman Agrawal def045c29d recent_topics: Move focus to search box on click.
When the keyboard focus is not on search box and user clicks on
search box, the focus will go move away from the search box to
the `current_focus_elem` on any rerender. To avoid that, we
move `current_focus_elem` to the search box when user clicks on it.
2020-06-30 16:46:33 -07:00
jagansivam28 9258f54aea CSS: Extract image_upload_widget.scss with all related upload widget CSS.
Since we had extracted `image_upload_widget.hbs` HTML for
image upload widget's like user avatar, realm logo, realm icon
we can also extract  `image_upload_widget.scss` SCSS file
from settings.scss file with all the CSS related
to image upload widget's.
This change will also help us to keep `settings.scss` cleaner.
2020-06-30 10:16:33 -07:00
Aman Agrawal b2ce1b1b6f recent_topics: Use js string search method for filtering topics.
This removes the confusing regex code and now we match letter
sequence in the stream and topic instead of matching complete words.
2020-06-29 22:21:23 -07:00
Aman Agrawal d2a6d0dfda recent_topics: Move launch button to top left sidebar.
Make dispaly `a` tag a block to so that it is clickable on
anywhere in the button space.
2020-06-29 22:21:23 -07:00
YashRE42 1defd21dac message_controls: Don't show pencil icon until server ack.
Previously, this was unconditional wrt local echoe which caused a bug
where by the pencil edit icon was visible first, then got hidden when
the chevron and star became visible.

This commit resolves the above bug, but this area still behaves
slightly weirdly in that, if, within a PM narrow, the user's mouse
cursor is over the spot where the message edit controls will appear
after sending, and then a message is sent by the user, only the
chevron and star appear at first. On cursor exit and reenter, all
three controls reappear ie the final state is correct.

Similar to the other "unless locally echoed" cases here, this will
probably prevent unexpected bugs caused by eg trying to enter edit
state before the message was received by the server, and then
redrawing later, etc.
2020-06-29 16:28:52 -07:00
Mohit Gupta c16c713060 refactor: Rename bugdown to markdown in misc. files.
This commit is part of series of commits aimed at renaming bugdown to
markdown.
2020-06-29 15:10:39 -07:00
Mohit Gupta bca4b4ee0c refactor: Rename bugdown to markdown in compose.js.
This commit is part of series of commits aimed at renaming bugdown to
markdown.
2020-06-29 15:07:26 -07:00
Mohit Gupta 8037063746 refactor: Rename bugdown to backend markdown in markdown.js.
This commit is part of series of commits aimed at renaming bugdown to
markdown.
2020-06-29 15:05:15 -07:00
Aman Agrawal ac0db1ab81 message_edit_form: Rename thread to topic for clarity. 2020-06-29 12:26:43 -07:00
Aman Agrawal 089deb70c9 recent_topics: Fix searching for special characters.
Escape all the possible special characters.
We replaced \b with (?:^|\s) since it matches word boundries including
special characters.

Pasted relevant stackoverflow links which expain them properly.
2020-06-28 15:03:54 -07:00