[Discover] Deangularize controller

[kertal]

Since the controller of angular is frequently edited, it is recommendable to keep on migrating step by step. We shouldn't migrate Angular router code for now, since also used by Discover context, whose controller needs also to be deangularized.

Functions and variables of $scope should be migrated to helpers to be used in the main react component

• controller variables

  • $element
  • $timeout
  • Promise
  • uiCapabilities ([ Discover ] Deangularize uiCapabilities #88057)

• $scope variables

  • $scope.hits
  • $scope.searchSource
  • $scope.indexPattern
  • $scope.fetchCounter
  • $scope.fetchStatus
  • $scope.state
  • $scope.minimumVisibleRows
  • $scope.fetchStatus
  • $scope.showSaveQuery [Discover] Inline state modifying function to react #89543
  • $scope.fieldCounts
  • $scope.topNavMenu
  • $scope.opts
  • $scope.fetchError
  • $scope.rows
  • $scope.resultState
  • $scope.histogramData

• $scope state changing function

  • $scope.setIndexPattern [Discover] Inline state modifying function to react #89543
  • $scope.changeInterval [Discover] Inline state modifying function to react #89543
  • $scope.updateSavedQueryId [Discover] Inline state modifying function to react #89543
  • $scope.setSortOrder [Discover] Inline state modifying function to react #89543
  • $scope.addColumn [Discover] Inline state modifying function to react #89543
  • $scope.removeColumn [Discover] Inline state modifying function to react #89543
  • $scope.moveColumn [Discover] Inline state modifying function to react #89543
  • $scope.timefilterUpdateHandler [Discover] Inline state modifying function to react #89543
  • $scope.updateTime [Discover] Inline state modifying function to react #89543
  • $scope.resetQuery
  • $scope.filterQuery

• Migrate Visualization functions

  • setupVisualization
  • getDimensions

• Migrate data fetching related stuff

  • $scope.updateDataSource
  • $scope.$watchMulti
  • $scope.fetch
  • $scope.handleRefresh
  • onResults

• Other functions, legacy & url related

  • $scope.onSkipBottomButtonClick - only angular related stuff
  • $scope.newQuery

[elasticmachine]

Pinging @elastic/kibana-app (Team:KibanaApp)

[kertal]

PR work in progress : #96766