SAP UI5 SmartTable.prototype._onMetadataInitialised 方法的深入介绍

SmartTable.prototype._onMetadataInitialised = function() {
    this._bMetaModelLoadAttached = false;
    if (this.bIsInitialised) {
      return;
    }
    this._bUseColumnLabelsAsTooltips = this.getUseColumnLabelsAsTooltips(); // keep value stable after initialization
    // Check whether further custom columns where added in the meantime
    this._updateInitialColumns();
    this._fireBeforeInitialiseAndValidate();
    this._validateCustomizeConfig(this.getCustomizeConfig());
    this._createTableProvider();
    if (!this._oTableProvider) {
      return;
    }
    this._aTableViewMetadata = this._oTableProvider.getTableViewMetadata();
    if (!this._aTableViewMetadata) {
      return;
    }
    if (this._bUseColumnLabelsAsTooltips) {
      this._oTable.getColumns().forEach(function(oColumn) {
        var oHeader = null;
        if (oColumn.getHeader) {
          oHeader = oColumn.getHeader();
        } else if (oColumn.getLabel) {
          oHeader = oColumn.getLabel();
        }
        var oLabel = oHeader && oHeader.isA && (oHeader.isA("sap.m.Label") || oHeader.isA("sap.m.Text")) ? oHeader : null;
        var oTooltipTarget = this._isMobileTable ? oLabel : oColumn;
        var oTooltip = oTooltipTarget ? oTooltipTarget.getTooltip() : null;
        if (oTooltipTarget && oLabel && !oTooltip && !oTooltipTarget.isBound("tooltip")) {
          if (oLabel.isBound("text")) {
            var oBindingInfo = _getClonedBindingInfo(oLabel.getBindingInfo("text"));
            oTooltipTarget.bindProperty("tooltip", oBindingInfo);
          } else {
            oTooltipTarget.setTooltip(oLabel.getText());
          }
        }
      }, this);
    }
    // Set width for custom columns after metadata is initialized
    if (this.getEnableAutoColumnWidth()) {
      this._oTable.getColumns().forEach(this._setWidthForCustomColumn, this);
    }
    if (!this._isMobileTable && this.getDemandPopin()) {
      this.setDemandPopin(false);
      Log.error("use SmartTable property 'demandPopin' only  with responsive table, property has been set to false");
    }
    this.detachModelContextChange(this._initialiseMetadata, this);
    // Indicates the control is initialised and can be used in the initialise event/otherwise!
    this.bIsInitialised = true;
    delete this._bInitialising;
    this._updateP13nDialogSettings(true);
    this._bTableSupportsExcelExport = this._oTableProvider.getSupportsExcelExport();
    this._bMultiUnitBehaviorEnabled = this._oTableProvider.getMultiUnitBehaviorEnabled();
    this._listenToSmartFilter();
    this._createVariantManagementControl(); // creates VariantMngmntCtrl if useVariantManagement OR useTablePersonalisation is true.
    // Control is only added to toolbar if useVariantManagement is set otherwise it acts as
    // hidden persistance helper
    this._createToolbarContent();
    this._applyToolbarContentOrder();
    this._aAlwaysSelect = this._oTableProvider.getRequestAtLeastFields();
    this._createContent();
    this._createPersonalizationController();
    // Create a local JSONModel to handle editable switch
    this._oEditModel = new JSONModel({
      editable: this.getEditable()
    });
    // Set the local model on the SmartTable
    this.setModel(this._oEditModel, "sm4rtM0d3l");
    this.attachEvent("_change", this._onPropertyChange, this);
    this.fireInitialise();
    // Trigger initial binding if no Variant exists -or- if it is already initialised
    if (!this._oVariantManagement || (this._oVariantManagement && this._bVariantInitialised)) {
      this._checkAndTriggerBinding();
    }
  };