text: import { r as registerInstance, d as createEvent, B as Build, f as getIonMode, c as getElement, h, H as Host } from './chunk-91927964.js';
  
  const SPLIT_PANE_MAIN = 'split-pane-main';
  const SPLIT_PANE_SIDE = 'split-pane-side';
  const QUERY = {
      'xs': '(min-width: 0px)',
      'sm': '(min-width: 576px)',
      'md': '(min-width: 768px)',
      'lg': '(min-width: 992px)',
      'xl': '(min-width: 1200px)',
      'never': ''
  };
  class SplitPane {
      constructor(hostRef) {
          registerInstance(this, hostRef);
          this.visible = false;
          /**
           * If `true`, the split pane will be hidden.
           */
          this.disabled = false;
          /**
           * When the split-pane should be shown.
           * Can be a CSS media query expression, or a shortcut expression.
           * Can also be a boolean expression.
           */
          this.when = QUERY['lg'];
          this.ionSplitPaneVisible = createEvent(this, "ionSplitPaneVisible", 7);
      }
      visibleChanged(visible) {
          const detail = { visible, isPane: this.isPane.bind(this) };
          this.ionSplitPaneVisible.emit(detail);
      }
      componentDidLoad() {
          this.styleChildren();
          this.updateState();
      }
      componentDidUnload() {
          if (this.rmL) {
              this.rmL();
              this.rmL = undefined;
          }
      }
      updateState() {
          if (!Build.isBrowser) {
              return;
          }
          if (this.rmL) {
              this.rmL();
              this.rmL = undefined;
          }
          // Check if the split-pane is disabled
          if (this.disabled) {
              this.visible = false;
              return;
          }
          // When query is a boolean
          const query = this.when;
          if (typeof query === 'boolean') {
              this.visible = query;
              return;
          }
          // When query is a string, let's find first if it is a shortcut
          const mediaQuery = QUERY[query] || query;
          // Media query is empty or null, we hide it
          if (mediaQuery.length === 0) {
              this.visible = false;
              return;
          }
          if (window.matchMedia) {
              // Listen on media query
              const callback = (q) => {
                  this.visible = q.matches;
              };
              const mediaList = window.matchMedia(mediaQuery);
              mediaList.addListener(callback);
              this.rmL = () => mediaList.removeListener(callback);
              this.visible = mediaList.matches;
          }
      }
      isPane(element) {
          if (!this.visible) {
              return false;
          }
          return element.parentElement === this.el
              && element.classList.contains(SPLIT_PANE_SIDE);
      }
      styleChildren() {
          if (!Build.isBrowser) {
              return;
          }
          const contentId = this.contentId;
          const children = this.el.children;
          const nu = this.el.childElementCount;
          let foundMain = false;
          for (let i = 0; i < nu; i++) {
              const child = children[i];
              const isMain = contentId !== undefined ? child.id === contentId : child.hasAttribute('main');
              if (isMain) {
                  if (foundMain) {
                      console.warn('split pane cannot have more than one main node');
                      return;
                  }
                  foundMain = true;
              }
              setPaneClass(child, isMain);
          }
          if (!foundMain) {
              console.warn('split pane does not have a specified main node');
          }
      }
      hostData() {
          const mode = getIonMode(this);
          return {
              class: {
                  [mode]: true,
                  // Used internally for styling
                  [`split-pane-${mode}`]: true,
                  'split-pane-visible': this.visible
              }
          };
      }
      get el() { return getElement(this); }
      static get watchers() { return {
          "visible": ["visibleChanged"],
          "disabled": ["updateState"],
          "when": ["updateState"]
      }; }
      render() { return h(Host, this.hostData()); }
      static get style() { return "ion-split-pane {\n  /**\n   * \@prop --border: Border between panes\n   */\n  left: 0;\n  right: 0;\n  top: 0;\n  bottom: 0;\n  display: -ms-flexbox;\n  display: flex;\n  position: absolute;\n  -ms-flex-direction: row;\n  flex-direction: row;\n  -ms-flex-wrap: nowrap;\n  flex-wrap: nowrap;\n  contain: strict;\n}\n\n.split-pane-visible > .split-pane-side,\n.split-pane-visible > .split-pane-main {\n  left: 0;\n  right: 0;\n  top: 0;\n  bottom: 0;\n  position: relative;\n  -ms-flex: 1;\n  flex: 1;\n  /* stylelint-disable-next-line declaration-no-important */\n  -webkit-box-shadow: none !important;\n  box-shadow: none !important;\n  z-index: 0;\n}\n\n.split-pane-visible > .split-pane-side:not(ion-menu),\n.split-pane-visible > ion-menu.split-pane-side.menu-enabled {\n  display: -ms-flexbox;\n  display: flex;\n  -ms-flex-negative: 0;\n  flex-shrink: 0;\n}\n\n.split-pane-side:not(ion-menu) {\n  display: none;\n}\n\n.split-pane-visible > .split-pane-side {\n  -ms-flex-order: -1;\n  order: -1;\n}\n\n.split-pane-visible > .split-pane-side[side=end] {\n  -ms-flex-order: 1;\n  order: 1;\n}\n\n.split-pane-md {\n  --border: 1px solid var(--ion-item-border-color, var(--ion-border-color, var(--ion-color-step-150, rgba(0, 0, 0, 0.13))));\n}\n\n.split-pane-md.split-pane-visible > .split-pane-side {\n  min-width: 270px;\n  max-width: 28%;\n  border-right: var(--border);\n  border-left: 0;\n}\n\n.split-pane-md.split-pane-visible > .split-pane-side[side=end] {\n  min-width: 270px;\n  max-width: 28%;\n  border-right: 0;\n  border-left: var(--border);\n}"; }
  }
  const setPaneClass = (el, isMain) => {
      let toAdd;
      let toRemove;
      if (isMain) {
          toAdd = SPLIT_PANE_MAIN;
          toRemove = SPLIT_PANE_SIDE;
      }
      else {
          toAdd = SPLIT_PANE_SIDE;
          toRemove = SPLIT_PANE_MAIN;
      }
      const classList = el.classList;
      classList.add(toAdd);
      classList.remove(toRemove);
  };
  
  export { SplitPane as ion_split_pane };
  