Display history refactor (#691)

* Create DisplayHistory

* Change arguments for _setContentTermsOrKanji

* Set up history-driven content updates

* Use new history only

* Load definitions if missing

* Refactor definitions getting

* Add support for wildcards

* Move definitions setup

* Add events

* Allow state change even if there is no history state

* Update search page to use history

* Fix history overwriting

* Fix search page not seeing state chang events during prepare

* Update state if necessary

* Don't reassign query text if the same

* Remove DisplayContext

* Initialize with real history state

* Track URL

* Update DisplayHistory to support pseudo-history

* Configure history settings on search page

* Fix state

* Use full URL

* Change data format of setContent

* Rename details to content

* Update event arguments

* Fix animation

* Remove old state changes

* Clear content properly

* Remove set/clear content overrides

* Fix setting up event listeners for content clear

* Make clearContent private

* Make focus opt-in

* Validate source

* Add unloaded type

* Generalize content params

* Update how extension unload content is assigned

* Restore query blurring

1 files changed, 2 insertions, 0 deletions

diff --git a/ext/fg/js/float.js b/ext/fg/js/float.js
index f23a9b93..513ee178 100644
--- a/ext/fg/js/float.js
+++ b/ext/fg/js/float.js
@@ -50,6 +50,8 @@ class DisplayFloat extends Display {
         ]);
         window.addEventListener('message', this._onWindowMessage.bind(this), false);
 
+        this.initializeState();
+
         this._frameEndpoint.signal();
     }