Fix empty property list in Phriction

Summary: Fixes T3944

Test Plan: Will test on secure

Reviewers: epriestley, staticshock

CC: Korvin, epriestley, aran

Maniphest Tasks: T3944

Differential Revision: https://secure.phabricator.com/D7291
Make the policy control a JS dropdown with icons

Summary: Ref T603. After thinking about this for a bit I can't really come up with anything better than what Facebook does, so I'm going to implement something similar for choosing custom policies. To start with, swap this over to a JS-driven dropdown.

Test Plan: See screenshot.

Reviewers: chad, btrahan

Reviewed By: btrahan

CC: chad, aran

Maniphest Tasks: T603

Differential Revision: https://secure.phabricator.com/D7285
Highlight the currently selected policy in the policy dropdown control thing

Summary: Ref T603. Make this a little easier to use by highlighting the current value.

Test Plan: See screenshot.

Reviewers: chad, btrahan

Reviewed By: chad

CC: chad, aran

Maniphest Tasks: T603

Differential Revision: https://secure.phabricator.com/D7289
Fix two issues where StandardPageView assumes it will always have access to a user

Summary: If we hit an exception very early, the request may not have a user yet. Don't assume it will.

Test Plan: Broke MySQL config on purpose to test some stuff, loaded Phabricator, got a nice error page instead of a super-fatal one.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Differential Revision: https://secure.phabricator.com/D7286
Improve an awkward initialization behavior in Javelin in Firefox

Summary: See comment; see IRC. This didn't cause anything bad, but ended up with `document.body.id == "null"` in Firefox, which is a bit weird.

Test Plan: Loaded page, put `document.body.null` into the console, got consistent results.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Differential Revision: https://secure.phabricator.com/D7288
Projects Icons Series 1

Summary: A set of random icons for use as project identifiers. 42, white.

Test Plan: photoshop, epriestley

Reviewers: epriestley, btrahan

Reviewed By: epriestley

CC: Korvin, epriestley, aran

Differential Revision: https://secure.phabricator.com/D7290
Clean up spacing on Diffusion headers

Summary: This adds some controllable space between paths in Diffusion headers. Fixes T3951

Test Plan: Tested new links in diffusion.

Reviewers: epriestley

Reviewed By: epriestley

CC: Korvin, epriestley, aran

Maniphest Tasks: T3951

Differential Revision: https://secure.phabricator.com/D7304
Fix subscribers in PHUIDocument

Summary: This resolves a wrapping issue in phui-document-css

Test Plan: reload page, subscribers no longer wrap.

Reviewers: epriestley

Reviewed By: epriestley

CC: Korvin, epriestley, aran

Differential Revision: https://secure.phabricator.com/D7301
Add border, transparent indicators to images in file property view

Summary: Fixes T3950. This centers the images, adds a thin blue border, and a transparent background.

Test Plan: Tested a file in Files, Diffusion, and Macro.

Reviewers: epriestley, btrahan

Reviewed By: epriestley

CC: Korvin, epriestley, aran

Maniphest Tasks: T3950

Differential Revision: https://secure.phabricator.com/D7305
Allow custom policies to be loaded and exeucuted by the policy filter

Summary: Ref T603. Adds code to actually execute custom policies. (There's still no way to select them in the UI.)

Test Plan:
  - Added and executed unit tests.
  - Edited policies in existing applications.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T603

Differential Revision: https://secure.phabricator.com/D7292
Fix breadcrumbs for login screen triggered when a logged-out user fails a policy check

Summary:
Ref T603. Currently, if you're logged out and try to view some object which requires you to be logged in, the login screen is missing the application breadcrumb and just says "Login".

Add the application in context so we get the keys icon.

Test Plan: {F69255}

Reviewers: chad, btrahan, asherkin

Reviewed By: chad

CC: aran

Maniphest Tasks: T603

Differential Revision: https://secure.phabricator.com/D7303
Don't try to activate disabled items in dropdown menus

Summary: Fixes an issue where the user could click a disabled dropdown menu item and get an exception or some other nonsense. Instead, just don't activate anything.

Test Plan: Clicked a disabled header, like "Members of project" in the policy dropdown.

Reviewers: btrahan, va.multimoney, chad

Reviewed By: chad

CC: aran

Differential Revision: https://secure.phabricator.com/D7293
Make some dropdown CSS more specific

Summary:
Dropdowns have some `span` rules and such currently. Give them class-based rules instead.

(This allows me to add another <span> to menu items later on without it picking up silly styles.)

Test Plan: In a future diff, added menu items with additional <span>s inside them.

Reviewers: btrahan, chad

Reviewed By: chad

CC: chad, aran

Differential Revision: https://secure.phabricator.com/D7294
Add a synthetic DOM event to JX.Workflow for form submission

Summary: Currently, when a dialog is submitted the Workflow itself emits an event but no DOM event is emitted. The workflow event is fine for handlers which only use JS, but there's currently no way for a handler to act more like a normal form handler. This event gives normal form handlers a way to capture Workflow submits and muck around with form contents, etc.

Test Plan: In a future diff, edited policies via a Workflow dialog.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Differential Revision: https://secure.phabricator.com/D7295
Rename ACTION_ACCEPT into ACTION_ALLOW

Summary: Ref T603. This is "Allow" in the UI, I just mistyped it when I created the constant.

Test Plan: `grep`

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T603

Differential Revision: https://secure.phabricator.com/D7296
Add some missing strings for custom policies

Summary: Ref T603. Fix/provide some rendering stuff related to custom policies.

Test Plan: After setting stuff to custom policies (made easier by future diffs), looked at the various places strings appear in the UI and saw more sensible ones.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T603

Differential Revision: https://secure.phabricator.com/D7297
Make PhabricatorPolicyQuery a CursorPagedPolicyAwareQuery

Summary:
Ref T603. Make these actually implement policy interfaces, so shared infrastructure (like handle loading) works as expected. They don't actually have meaningful policies, and we short circuit all the checks.

(I don't plan to let you set policy controls on policies themselves)

Test Plan: Loaded handles for Policy objects via common infrastructure.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T603

Differential Revision: https://secure.phabricator.com/D7298
Prepare the policy rule edit endpoint for integration

Summary: Ref T603. Allow the endpoint to take an existing policy PHID to populate the editor and return a useful datastructure.

Test Plan: In the next revision, actually hooked this up.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T603

Differential Revision: https://secure.phabricator.com/D7299
Maniphest - add support for !assign command

Summary:
also try to centralize some of the command parsing logic. note that differential is still an exception here. it uses a whitelist-style regex. i think long-term we should have this for every app but changing it seemed too big for this diff.

Fixes T3937.

Test Plan:
echo '!assign btrahan' | ./bin/mail receive-test --as xerxes --to T22 ; echo '!claim' | ./bin/mail receive-test --as xerxes --to T22

unit tests passed, though my new one is silly

Reviewers: epriestley

Reviewed By: epriestley

CC: Korvin, epriestley, aran

Maniphest Tasks: T3937

Differential Revision: https://secure.phabricator.com/D7307
Maniphest - make instructions !assign savvy

Summary: forgot this in last diff.  Ref T3937.

Test Plan: looks good

Reviewers: epriestley

Reviewed By: epriestley

CC: Korvin, epriestley, aran

Maniphest Tasks: T3937

Differential Revision: https://secure.phabricator.com/D7308