This series of patches adds support for removing and clearing (remove all) records from IndexedDB object stores. Part 1: Support more key types in TableWidget Make TableWidget.remove work when a non-string (e.g., numeric) key is passed. A lot more work needs to be done until all possible IndexedDB key types are supported (that's bug 1284219), but this is a good start. Part 2: Change format of stores-cleared event data to support clearing any store The current structure of the "stores-cleared" event supports only clearing of "hosts", not of items at any other level. Changed the structure to support clearing data at any level. The format is now almost exactly the same as for the "stores-updated" event. Backward compatibility with the old format is kept (new frontend still understands data from older backends). Part 3: Support for removing IndexedDB records in storage inspector The main part: implemenation of the feature itself. UI: - change the onTablePopupShowing and onTreePopupShowing methods to correctly display the delete action at tree items where they are supported (host vs database vs objstore). This code is getting rather ugly and will need a refactor once we add further support for manipulating IndexedDB and Cache entries. Sending the capabilities from server seems like the best option - i.e., evolving getEditableFields into something more capable. - the onRemoveItem and onRemoveAll methods of StorageUI now support removing items by full path, not only host. Storage actor on backend: - add removeItem and removeAll methods to the IndexedDB actor - the onDatabaseRemoved notification, which sends an update event to the UI, was refactored into a more generic onItemUpdated notification that can handle more types of updates ("deleted", "cleared") to more IndexedDB item types. - slightly improved error handling and reporting Part 4: Tests for removing IndexedDB records in storage inspector - updated the existing tests for delete actions to test IndexedDB, too

Awesome set of changes... thanks for working on this.

(In reply to Michael Ratcliffe [:miker] [:mratcliffe] from comment #7) > Awesome set of changes... thanks for working on this. Thanks for the quick review, Mike!

Pushed by cbook@mozilla.com: https://hg.mozilla.org/integration/fx-team/rev/ea99abdb125d Part 1: Support more key types in TableWidget r=mratcliffe https://hg.mozilla.org/integration/fx-team/rev/8f8bfc4fab08 Part 2: Change format of stores-cleared event data to support clearing any store r=mratcliffe https://hg.mozilla.org/integration/fx-team/rev/caf2ddae3120 Part 3: Support for removing IndexedDB records in storage inspector r=mratcliffe https://hg.mozilla.org/integration/fx-team/rev/d06d81ac4cf2 Part 4: Tests for removing IndexedDB records in storage inspector r=mratcliffe

https://hg.mozilla.org/mozilla-central/rev/ea99abdb125d https://hg.mozilla.org/mozilla-central/rev/8f8bfc4fab08 https://hg.mozilla.org/mozilla-central/rev/caf2ddae3120 https://hg.mozilla.org/mozilla-central/rev/d06d81ac4cf2