501 Commits

Author SHA1 Message Date
Andrew Henry
92737b43af
[API] Changes to mutation API (#3483)
Changes how object mutation works behind the scenes in order to keep objects in sync automatically when their model changes.

* The way that objects are mutated and observed has not changed, openmct.objects.mutate and openmct.objects.observe should still be used in the same way that they were before.

* Behind the scenes, domain objects that are mutable are wrapped in a new MutableDomainObject that exposes mutator and observer functions that allow objects to be mutated in such a way that all instances can be kept in sync.

* It is now possible to retrieve MutableDomainObjects from the API, instead of regular domain objects. These are automatically updated when mutation occurs on any instance of the object, replacing the need for "*" listeners. Note that the view API now provides objects in this form by default. Therefore, you do not need to do anything differently in views, the domain objects will just magically keep themselves up to date.

* If for some reason you need to retrieve an object manually via openmct.objects.get (you should ask why you need to do this) and you want it to magically keep itself in sync, there is a new API function named openmct.objects.getMutable(identifier). Note that if you do this you will be responsible for the object's lifecycle. It relies on listeners which must be destroyed when the object is no longer needed, otherwise memory leaks will occur. You can destroy a MutableDomainObject and its (internal) listeners by calling openmct.objects.destroyMutable(mutableDomainObject). Any listeners created by calls to openmct.objects.observe need to be cleaned up separately.

* If the composition of a MutableDomainObject is retrieved using the Composition API, all children will be returned as MutableDomainObjects automatically. Their lifecycle will be managed automatically, and is tied to the lifecycle of the parent.
Any MutableDomainObject provided by the Open MCT framework itself (eg. provided to view providers by the View API, or from the composition API) will have its lifecycle managed by Open MCT, you don't need to worry destroying it.
2021-01-17 14:15:09 -08:00
Deep Tailor
9af2d15cef
Fix tree click preview in edit mode (#3645)
* fix non preview issue
* fix lint warnings that were left over in master
2021-01-14 11:45:28 -08:00
Jamie V
3e9b567fce
[Navigation Tree] Whole tree item clickable (#3638)
* passing click and context click on tree item down to object label, making the whole tree item interactive

* removed unnecessary code

* WIP: removing propagation prop from view control and just stopping all propagation

* capturing click on tree item and then calling the click handler on objectLabel, this prevents multiple events and handles all clicks in the tree-item

* removing unnecessary ref

* ignoring clicks for view control so it can handle them itself

* made view control class a constant

* replaced class-based checks with ref-based checks

* removing old leftover code
2021-01-11 16:25:29 -08:00
Charles Hacskaylo
6f51de85db
Fix for changed approach to 'type' object (#3636) 2021-01-08 15:27:00 -08:00
Deep Tailor
668bd75025
Revert "[Navigation Tree] Whole tree item clickable (#3632)" (#3635)
This reverts commit e6e07cf95979236569c4a39f2fee9d51b0420032.
2021-01-08 12:57:39 -08:00
Jamie V
e6e07cf959
[Navigation Tree] Whole tree item clickable (#3632)
* passing click and context click on tree item down to object label, making the whole tree item interactive

* removed unnecessary code
2021-01-08 11:55:43 -08:00
Jamie V
2f8431905f
[Navigation Tree] Fixes initial load navigation request breaks if children haven't loaded in yet (#3630)
* changed logic so people cant navigate up tree til initial load has happened, thus ensuring ancestors have been populated for the first time
2021-01-08 09:38:09 -08:00
Deep Tailor
98207a3e0d
Context click should add a class to tree item (#3619)
* add ability to pass onDestroy callback to menu api show

* fix lint issues

* remove fdescribe

* rename event and variables to contextClickActive

* rename variable to active

* Sanding and polishing CSS related to context-click visual feedback

- Changed CSS `border` approach to `box-shadow` to avoid jumping;
- Removed unwired code and CSS styles for Folder grid and list views;

Co-authored-by: Jamie V <jamie.j.vigliotta@nasa.gov>
Co-authored-by: charlesh88 <charlesh88@gmail.com>
2021-01-04 12:57:18 -08:00
Jamie V
351848ad56
only edit name in browse bar if obj creatable (#3616) 2020-12-22 11:31:30 -08:00
Charles Hacskaylo
f5cbb37e5a
Fix Inspector-based font size and style controls and menus (#3497)
- Moved CSS rule that was pushing the font style control to the right
side of the Inspector to `l-shell__toolbar` rule definition;
- Fixed `menus-to-left` CSS rule and applied to font size and style
menu controls;
- Added a new `menus-no-icon` style for menus that don't have icons,
applied to font size and style menu controls;
2020-12-17 18:43:58 -08:00
Nikhil
1c2b0678be
[Notebook] snapshots on plots are empty #3566 (#3567) 2020-12-01 14:14:59 -08:00
Charles Hacskaylo
fd9c9aee03
Mod classes to fix default Notebook indicator (#3541)
- Simplified `is-status--*` mixins;
- Cleaned up CSS;
- Removed unused grid-item.scss file;
- Added specific styling for default Notebook grid item;

Co-authored-by: Deep Tailor <deep.j.tailor@nasa.gov>
2020-11-23 12:46:56 -08:00
Charles Hacskaylo
59bf981fb0
Sanding and polishing CSS related to 3 Dot Menu (#3542)
- Increased opacity of `c-icon-button` labels;
- Fixed CSS selector targeting no-icon menu items;
- Hide overflow in `c-so-view` header element to prevent icons extending
 outside very small layout frames;
2020-11-23 12:41:04 -08:00
Deep Tailor
4bbdac759f
check if domainobejct before listening for status (#3539) 2020-11-20 15:27:57 -08:00
Charles Hacskaylo
6375ecda34
Three Dot Menu Prototype (#3325)
* Three dot menu implementation

Co-authored-by: Deep Tailor <deep.j.tailor@nasa.gov>
Co-authored-by: Nikhil <nikhil.k.mandlik@nasa.gov>
2020-11-19 09:53:06 -08:00
Nikhil
d232dacc65
[Notebook] new entries on brand new notebook not rendered (#3496)
* [Notebook] new entries on brand new notebook not rendered #3488

* Refactored code to 'mutateObject'  from one place only, add page to newly created section immediately,  update entries copy then call mutate to update it inside domainObject.

Co-authored-by: Jamie V <jamie.j.vigliotta@nasa.gov>
Co-authored-by: Andrew Henry <akhenry@gmail.com>
2020-11-19 08:38:14 -08:00
Charles Hacskaylo
30ca4b707d
Fix Imagery-related issue for VERVE #301 (#3520)
- Add 'display: flex' where needed to get main image to display in
preview overlay;
2020-11-13 16:09:01 -08:00
Charles Hacskaylo
77b720d00d
Fix Imagery for VERVE #266 (#3507)
* Fairly extensive refactoring to fix layout in Safari for VERVE #266

- VERY WIP at this time!
- Many instances of `height: 100%` converted or amended to include
`flex: 1 1 auto`;
- Some high-use containers like `c-so-view__object-view` converted to use
flex layout;
- Views fixed generally for sub-object view, and specifically for
Conditionals, Folder grid view and Imagery;
- Imagery background image holder converted to use absolute positioning;
- TODO: Notebook has a problem where the side nav pane isn't overlaying
in Safari - it's a JS thing, c-drawer--push isn't be replaced with
c-drawer--overlays as it should;

* CSS and markup refactoring to support addition of 'suspect' telemetry

- Remove commented code;
2020-11-09 09:33:25 -08:00
Deep Tailor
ba982671b2
Quick idea on a splash screen that will not increase load time (#3376)
* New splash screen

Co-authored-by: charlesh88 <charlesh88@gmail.com>
Co-authored-by: Andrew Henry <akhenry@gmail.com>
2020-11-06 13:58:57 -08:00
Jamie V
5df7d92d64
[Navigation Tree] Fix tree loading issue (#3500)
* added resize observer for FIRST load of mainTree

* new Promise driven height calculation test

* cleaning up code, sticking with promise height caclcuations

* more cleanup

* returning from the initialize function
2020-11-03 12:06:49 -08:00
David Tsay
a8228406de
[Inspector] Allow styles (including font and font size) to be saved and reused (#3432)
* working proto for font size

* wip

* Font styling

 - Base classes for font-size and font;
 - WIP!

* working data attribute for fontsize

* Font styling

 - Add `js-style-receiver` to markup, refine style targeting JS for
 better application of styles;
 - Refinements to font and size CSS;
 - WIP!

* Font styling

 - Redo CSS to use `data-*` attributes;
 - New `u-style-receiver` class for use as font-size and font-family CSS
 selector target;
 - New `js-style-receiver` class for use as JS target by ObjectView.vue;
 - New classes added to markup in all Open MCT views;
 - Changed font-size values from 'is-font-size--*' to just the number;
 - Some refinement to individual views to account for font-sizing
 capability;
 - Removed automatic font-size 13px being set by SubobjectView.vue;
 - WIP!

* working mixed styles

* Font styling

 - Added `u-style-receiver` to TelemetryView.vue;
 - Added `icon-font-size` to Font Size dropdown button;
 - TODO: better font-size icon;

* working font-family

* Font styling

 - Art for `icon-font-size` glyph updated;
 - Redefined glyph usage in some Layout toolbar buttons;
 - Updated font-size and font dropdown menus options text;

* Font styling

 - Refined font-size and font dropdown values;
 - Fixed toolbar-select-menu.vue to remove 'px' from non-specific option
  return;

* dont allow font styling on layouts that contain other layouts

* fix lint warning

* add sizing row

* fix bug with column width sizing

* fix bug with header style

* add saved styles inspector view

* WIP

* add vue component for selector

* WIP styles manager to communicate between vue components

* WIP saving and persisting styles

* no duplicate styles prevention

* fix props syntax

* WIP can apply conditional styles

* static styles do not work yet

* display border color in saved styles swatch

* allow deleting styles except default style

* WIP apply static style works but also to layout...

* prevent additional StylesView from being created

* delete style message

* change save order

* move applystyle to selector component

* rename for consistency

* naming refactor

* add style description

* update style properties only if they exist and do not erase properties

* refactor singleton usage

refactor save method

* show save and delete only on hover

* do not show delete icon if not in edit mode

* normalize styles before saving

prevent apply style if conditional and static styles are simultaneously selected

* remove default style

tweak selector display

* allow conditional and static styles to have saved style applied

limit saved styles to 20

* refactor styles manager

remove openmct dependency

use provide/inject

* resolve merge conflicts

* lint fix

* reorganize styles

* add font style editor to styles view

* save and display border correctly in saved styles view

* WIP add font styling controls to inspector styles view

* add font constants

* WIP refactor to provide reactive props

fix locked for edit

* WIP display consolidated font styles for selection in editor

* WIP font styles saved to layout

* WIP persisting font styles from inspector works

* fix styleable check

* move logic up to stylesview because save is two part

* apply font style to thumb

* there can be only one

* show font style for native views

* linting fix

* push stylesManager work to StylesView

* move method to computed

* move constant definition outside of function call

* Styling for saved styles functionality WIP

- Simplified and removed unnecessary markup;
- Standardized style applied to saved style element and toolbar control;
- Removed saved style expand arrow and description, replaced with item
title / tooltip approach;
- Standardized width of `c-style-thumb` element;
- Moved font size and style controls to the designed location;

* Styling for saved styles functionality WIP

- Layout and CSS normalization between style editor control and saved
style preview element;
- Control alignment refined;
- Moved font size and style controls to the designed location;

* Styling for saved styles functionality WIP

- Update font size icon art to normalize size;
- Sanding, tweaking, alignin and layout in style controls area of
Inspector;

* Styling for saved styles functionality WIP

- Hide the font size and style menu buttons unless the user is editing;

* remove font controls from toolbar

* turn styles tab into multipane element

* lint fix

* no font style should not be viewed as non-specific

* delete saved style by index not style

* cleanup

* view and inspector view updates on initial font change

* revert computed back to method

* set initial height

* fix test after removing 2 buttons from toolbar

* fix hidden lint error

* fix lint

Co-authored-by: Deep Tailor <deep.j.tailor@nasa.gov>
Co-authored-by: charlesh88 <charlesh88@gmail.com>
2020-11-02 12:35:43 -08:00
Jamie V
5646a252f7
[Navigation Tree] Simplify logic (#3474)
* added new navigation method for tracking, lots of optimizations

* updated indicator logic, tweaked objectPath/navigationPath, removed old code

* added temporary ancestors variable to be used while building new tree ui during navigation

* removed observer for ancestors, all handled in composition watch now

* updates from PR comments

* fixing testing errors

* checking for older format of saved path, update if old
2020-10-29 11:58:45 -07:00
David Tsay
463c44679d
[Display Layout] User should be able to toggle grid lines (#3331)
* Display Layout grid toggle and dimensions

- Added toggle grid button;
- Added Layout 'size' properties;
- Very WIP!

* Display Layout grid toggle and dimensions

- Cleanup toolbar;

* new configuration layoutDimensions

* extract display layout grid to own vue component

* split toolbar structure into two structures

* allow toggling grid when editing display layout

* toggle grid icon show/hide state on click

* grid be shown on starting edit mode

* remove dimensions code for other display layout feature

* toggle icon after method completes

* change icon names

* update spec to include new action and separator

Co-authored-by: charlesh88 <charlesh88@gmail.com>
Co-authored-by: Deep Tailor <deep.j.tailor@nasa.gov>
2020-10-23 09:32:35 -07:00
Deep Tailor
184b716b53
[Telemetry Table] Row counts (#3428)
* add marked rows and total rows in tables

* Styling for table row counts addition

- Main styles for new `.c-table-indicator` and elements;
- Refined main layout spacing;
- Layout for table footer elements;
- Hover behavior for footer when table in Display Layout;

* Styling for table row counts addition

- Refined `.c-filter-indication` styles;
- Refined `.c-table-indicator` styles;
- Added dynamic tooltips for total and marked rows count elements;

* fix lint issues

Co-authored-by: charlesh88 <charlesh88@gmail.com>
2020-10-19 11:48:10 -07:00
Shefali Joshi
2deb4e8474
Duplicate tree ancestors fix (#3454)
* block nav when "syncing" tree only, where most of the problems popped up
* not populating ancestors on navigation until current directory children loaded

Co-authored-by: Jamie Vigliotta <jamie.j.vigliotta@nasa.gov>
2020-10-14 10:52:45 -07:00
Jamie V
7f10681424
block nav when "syncing" tree only, where most of the problems popped up (#3451) 2020-10-13 10:01:16 -07:00
Jamie V
6923f17645
[Navigation Tree] Race condition on checking document readystate (#3430)
* checking if state is already ready, as this is a subcomponent, that could be the case

* optimizing readystate checks
2020-10-07 16:38:54 -07:00
Charles Hacskaylo
87a45de05b
Fix scroll issues in tree overflow state (#3385)
* Fixes #3383 - Tree scrolling area should not display horizontal scroll.
* Includes various additional improvements to the object tree.
Co-authored-by: Jamie Vigliotta <jamie.j.vigliotta@nasa.gov>
2020-10-07 11:29:42 -07:00
Jamie V
5f7e34ce6c
Tracking navigation requests, if multiple, only finish on latest (#3403) 2020-10-05 10:41:49 -07:00
Charles Hacskaylo
db33f0538a
Fixes for Testathon 08-03-20 issues (#3269)
* Fixes #3268

 - Moved `pointer-events: none` to apply to proper element in table and
 qualified selector to only apply when the table is within a layout
 frame;

* Tabs View mods, fixes #3265

 - Restored missing `c-object-label` markup to display type icon;
 - Removed unused code;
 - Refined alignment in `c-object-label` CSS;

* Fix mistakenly left port change

Co-authored-by: Andrew Henry <akhenry@gmail.com>
Co-authored-by: Jamie V <jamie.j.vigliotta@nasa.gov>
2020-10-02 15:43:33 -07:00
Nikhil
ee60013f45
Notebook refactor (#2883)
* Code refactoring per https://github.com/nasa/openmct/issues/2825
2020-10-01 15:42:32 -07:00
Jamie V
505796d9f0
[Search] SearchProvider and Tree Search enhancements/fixes (#3400)
* update generic search compostion load to new version for testing

* logging

* removing logging adding check for undefined child

* reverting genericsearchprovider

* testing using object service instead of modelservice for search

* modified the animations for sliding children in and out to be more reliable, pr updates

* removing unneccessary code
2020-09-29 10:06:58 -07:00
Jamie V
56120ba1bb
[Navigation Tree] Handling deleted ancestors correctly (#3401)
* added location observers for ancetors in nav tree to handle ancestor deletions

* tracking current ancestors and handling deletions

* minor method name change on call

* removed redundant code
2020-09-28 11:41:33 -07:00
Jamie V
54ce86eff3
[Navigation Tree] Animation fixes (#3375)
* added padding for loading indicator, updated no items logic and is loading logic, adding checks for loading to prevent navigation during loading

* updating style name that is used in more than one way

* moving indicator offset style to computed value

* lint fix
2020-09-15 12:52:52 -07:00
David Tsay
4a576321e3
[Display Layout] Exclude layout objects from 'missing' object check (#3369)
* safe check for domainObject status

* clarifying comment
2020-09-14 13:03:05 -07:00
David Tsay
b4c44c6d49
Do not display tooltip when item description exists (#2628) 2020-09-14 12:05:22 -07:00
David Tsay
97694fa29c
Bump copyright year to 2020 (#3169) 2020-09-14 11:17:31 -07:00
Jamie V
91d1681698
[Navigation Tree] Prevent showing "no items" while still loading (#3341)
* no  showing "no items" if still loading

* added additional no items variable to handle dictionary composition loading race conditions

* code cleanup

* more descript variable name
2020-08-31 11:23:50 -07:00
Charles Hacskaylo
c4cd725c9a
[Navigation] Properly handle overflow in conditional style selection tree (#3338) 2020-08-28 11:46:03 -07:00
Jamie V
ffb3b302c7
[MCT Tree] Testathon Fixes (#3324)
* WIP: testing backwards compatibility checks

* added new localstorage key for expanded tree node, delete old one if detected

* removing obsolete backwords compatibility code

* fixed going up the tree items not showing, going down the tree "ghost" image showing

* removing console log

* removed duplicate functionality
2020-08-25 14:15:28 -07:00
Jamie V
278f48f65c
backwards compatible fix and switching between multi to single root children fix (#3319) 2020-08-24 15:00:11 -07:00
Jamie V
4801dc4f32
New tree refactor (#3098)
* revised new tree refactor, moved most of the logic to mct-tree instead of tree-item

* scrollTo set for sync, bug fixes, window resize handling

* removing console logs

* checking domainobject composition for length to verify children instead of composition object itself

* added scrollTo on load if in viewed objects directory

* loading, sync bug, search issues, opitmization

* initial PR review updates

* modified so search now uses the same container and virtual scroll

* eslint fix

* Adding new glyphs

- Multiple new glyphs cherrypicked from branch `add-new-glyphs-062320`;

* Styling for new-tree-refactor WIP

- WIP!
- New glyphs, markup changes in BrowseBar.vue;
- Refinements to tree items, WIP;
- TODO: move hard-coded CSS values into _constants, make
theme-compatible;

* Styling for new-tree-refactor WIP

- WIP!
- Added new `c-click-link` CSS class;
- Move tree sync button into tree pane area;
- Added named "controls" slot to pane.vue;
- _up and _down arrows now use visibility instead of opacity to prevent
accidental clicks;

* Styling for new-tree-refactor WIP

- WIP!
- Significant mods and simplification in pane.vue and assoc CSS for
expand/collapse functionality;
- Wait spinner when in tree: cleanups, simplification;

* More new glyphs, updated art

- New glyphs: icon-unlocked and icon-target;
- Updated art for icon-lock glyph;

* remove arrows for search results, hightlight "my items" correctly, added empty folder notic

* Styling for new-tree-refactor WIP

- WIP!
- Refinements to "empty" object element;
- Changed sync-tree icon glyph;

* Styling for new-tree-refactor WIP

- Nav up arrows now left-align properly;

* Styling for new-tree-refactor

- Significant consolidation and cleanups in mct-tree.scss;
- Normalize base and hover styles across new tree, legacy tree,
list-items (used in Notebook) and Folder List View;
- Class naming normalization, change `c-list-item__name-value` to
`c-list-item__name`;
- Add styling to override and remove `<a> outline: dotted` coming from
normalize-min;
- Removed too-broad `<a>` coloring in tables;

* Styling for new-tree-refactor

- Fix styles for Snow theme;
- Sync Maelstrom and Espresso themes;
- Remove too-broad `<a>` hover styling from global.scss;
- Disallow pointer-events on `is-navigated` object's label (click on
c-nav__down element still allowed);

* Styling for new-tree-refactor

- Normalizing status area expand/collapse iconography to match new
approach in panes;

* Adding new glyphs

- Added `icon-items-collapse` and `icon-items-expand`;

* Styling for new-tree-refactor

- Using new glyphs for items expand/collapse in Status area;

* dynamic item height for desktop and mobile views

* lint fixes

* updated addChild and removeChild functions as they were not working at all

* some PR comment updates!;

* Remove unneeded hard-coded CSS color property

* fixed issues when multiple root children exist, added plugin to change the name of the default root object

* removing "my other items" testing references

* linting fixes

* updating karma timeouts for testing purposes

* eslint fixes

* WIP: fixing linting issues

* updating for testing

* set root object provider to update root registry if called more than once

* tweaking tests so that it passes both locally and on the serve tests

* removing old css code preventing context clicks on active menu items

* fixing testing errors

* backwards compatible storage fix

Co-authored-by: charlesh88 <charlesh88@gmail.com>
Co-authored-by: Deep Tailor <deep.j.tailor@nasa.gov>
2020-08-24 13:47:56 -07:00
Joel McKinnon
c6ca912f2b
ESLint one-var, no-var rules (#3239)
* fixed issues for eslint one-var and no-var rules

Co-authored-by: Joshi <simplyrender@gmail.com>
Co-authored-by: Andrew Henry <akhenry@gmail.com>
2020-08-10 12:13:23 -07:00
Joel McKinnon
4d560086dd
ESLint upgrade, implement additional rules (#3230)
* upgrade to ESLintv7, added overrides for rules violated
* removed overrides for spec files
* fixed no-prototype-builtins issues
* added rules for default-case-last, default-param-last, grouped-accessor-pairs, no-constructor-return, and added override for one violation

Co-authored-by: Andrew Henry <akhenry@gmail.com>
Co-authored-by: Shefali Joshi <simplyrender@gmail.com>
2020-08-10 11:23:35 -07:00
Joel McKinnon
ef965ebdfd
ESLint rules: array-callback-return, no-invalid-this, func-style (#3151)
* satisfied array-callback-return rule
* satisfying no-invalid-this rule
* fixed invalid-this issues
* changed isNotEqual to arrow function
* added rule func-style
* added return false to satisfy array-callback-return rule

Co-authored-by: Joel McKinnon <jmckinnon@apple.com>
Co-authored-by: Joshi <simplyrender@gmail.com>
Co-authored-by: Andrew Henry <akhenry@gmail.com>
2020-08-10 10:59:18 -07:00
Joel McKinnon
0b4a843617
ESLint rules: rules requiring minor changes (#3139)
* implemented trivial code changes necessary batch of rules

Co-authored-by: Andrew Henry <akhenry@gmail.com>
2020-08-10 10:35:40 -07:00
Andrew Henry
7e7141a5a0
Fixes to enable testing again (#3275)
* Updated library versions
* Use Karma alternative spec loading
* Fixed memory leak in URLTimeSettingsSynchronizer
* Introduce mock DataTransfer object to fix issue with firefox headless
* make resetApplicationState return a promise
* Remove BeforeAll
* Do not throw an error if root returns no children
* Adding missing parameters to ES tests
* Fixed TransactionService bug
* bump test coverage up to 64%
2020-08-10 09:47:04 -07:00
Jamie V
f03bfdebb4
[Telemetry Tables][Plots] Display units where applicable (#3198)
* added unit columns in telemetry tables

* added unit column hiding in telemetry tables, added units to lad tables and sets

* added units to plots and plot legends
2020-07-31 13:13:58 -07:00
Andrew Henry
a09da30768
New eslint rules auto fix (#3058)
* no-implicit-coercion and no-unneeded-ternary

* End every line with a semicolon

* Spacing and formatting

* Enabled semi-spacing

* Applies npm run lint:fix to code after master merge

* Fix merge issues

* Switched operator-linebreak to 'before'

Co-authored-by: Joshi <simplyrender@gmail.com>
2020-07-31 12:11:03 -07:00
Nikhil
573a63d359
[Snapshots] Are holding on to outdated domainObjects when clicking on preview #3078 (#3240)
* [Snapshots] Are holding on to outdated domainObjects when clicking on preview #3078

* #3250 :  [Preview] Preview window should not have any context menu actions

* cleanup: removed redundant code
2020-07-29 16:33:39 -07:00