* Create searchAt wrappers
* Add optional support for searching on the click event
* Update QueryParser to use TextScanner's searchOnClick functionality
* Move/rename searchAt
* Move pendingLookup checks
* Add 'searched' event to TextScanner
* Use common searched event for Frontend and QueryParser
* Move functions, make private
* Refactor Popup.setVisibleOverride
* Use event to observe visibility changes
* Add setAllVisibleOverride/clearAllVisibleOverride
* Add setAllVisibleOverride/clearAllVisibleOverride cross frame handlers
* Update how visibility is changed
* Wait for next frame to ensure visibility has been updated
* Simplify how parent/child are set
* Remove unused public frameId property
* Change use of getFrame
* Simplify parent access
* Use property for the container
* Remove isProxy
* Public function API parity
* Public property API parity
* Refactor document.js into a class
* Move public functions first
* Rename private functions
* Rename
* Rename argument
* Use instance of DocumentUtil
* Update tests
* Refactor
* Rename (test-)document.js to (test-)document-util.js
* Add _invokeSafe function to silently ignore extension unload errors
* Remove "Api" from function names
* Add invokeSafe to Popup
* Don't redundantly set content type to 'unloaded'
* Update TextSourceElement.equals check to match TextSourceRange.equals
* Force full query to be visible when scanning buttons or images with more text
* Update style of query parser
* 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
* Simplify invoke
* Pass isTerms instead of type
* Update DisplaySearch.setContent to pass argument array
* Simplify argument object structure for setContent
* Move focus and disableHistory level
* Always include focus and disableHistory options
* Change disableHistory to history
* Pass source text to setContent
* Use consistent argument/object field order
* Remove unused previous field
* Combine logic for forward/back navigation
* Remove unused function
* Rename field
* Change extensionUnloaded trigger function
* Update how extension unloaded content is shown
* Ignore certain errors caused by extension unload
* Add _showExtensionUnloaded function
* Wrap internals of updateOptions
* Suppress errors caued by extension unload
* Make the frontend trigger the popup's extensionUnloaded event
* Refactor searchQueryUpdate action
* Use standard message handler style
* Use name "promiseOrResult" for consistency
* Use standard message handler convention for Yomichan message handlers
* Use common message handler invoker
* Add support for dynamic message handlers
* Pass messages using crossFrame.invoke instead of contentWindow.postMessage
* Set up async handlers
* Simplify configure call and response
* Remove bindings
* Fast exit if same window
* Simplify selector
* Rename functions, reuse _getFrameOffsetParent
* Update message style
* Send reply message to a specific frame
* Create FrameClient and FrameEndpoint
* Use new Frame* classes for Popup=>frame connection
* Update api.sendMessageToFrame and api.broadcastTab to include the sender's frameId
* Update FrameClient to store the frame's frameId
* Change getOrCreatePopup arguments to be an object
* Add ownerFrameId to popup and DisplayFloat
* Refactor DisplayFloat host action invocation
* Use CrossFrameAPI instead of window.postMessage
* Update popup closing functionality on the search page
* Organize by public/private
* Don't access super class's private members
* Make _autoPlayAudioTimer private
* Refactor constructors
* Make functions private
* Organize by public/private
* Organize window message handlers
* Make fields private
* Refactor DisplaySearch constructor
* Make functions private
* Organize by public/private
* Remove statics
* Move orphan detection and error handling to Display
* Add clearContent function
* Add/use public get/set functions for optionsContext
* Add public getOptions
* Move interactive assignment
* Mark fields as private
* Mark functions as private
* Change stray getter into a function
* Move "yomichan" object setup to a separate file
* Update script imports
* Align message handlers
* Rename Yomichan.prepare to Yomichan.ready
* Add new prepare function
* Improve isExtensionUrl
* Add support for injecting stylesheets into a custom parent node
* Add api.getStylesheetContent
* Add support for injecting a CSS file's content
* Add usePopupShadowDom option
* Use a per-parentNode cache
* Add support for using a shadow DOM wrapper around popup iframes
* Ignore the popup container instead of the frame
