fix(tab): props are reactive

core/src/components.d.ts

@@ -6961,16 +6961,18 @@ declare global {
 
   namespace StencilComponents {
     interface IonTabButton {
+      'badge': string;
+      'badgeColor': string;
       'color': Color;
+      'disabled': boolean;
+      'href': string;
+      'icon': string;
+      'label': string;
       'mode': Mode;
       /**
        * If true, the tab button will be selected. Defaults to `false`.
        */
       'selected': boolean;
-      /**
-       * The tab component for the button 
-       */
-      'tab': HTMLIonTabElement;
     }
   }
 
@@ -6993,28 +6995,18 @@ declare global {
   }
   namespace JSXElements {
     export interface IonTabButtonAttributes extends HTMLAttributes {
+      'badge'?: string;
+      'badgeColor'?: string;
       'color'?: Color;
+      'disabled'?: boolean;
+      'href'?: string;
+      'icon'?: string;
+      'label'?: string;
       'mode'?: Mode;
-      /**
-       * Emitted when the tab button is loaded 
-       */
-      'onIonTabButtonDidLoad'?: (event: CustomEvent<void>) => void;
-      /**
-       * Emitted when the tab button is destroyed 
-       */
-      'onIonTabButtonDidUnload'?: (event: CustomEvent<void>) => void;
-      /**
-       * Emitted when the tab bar is clicked  
-       */
-      'onIonTabbarClick'?: (event: CustomEvent<HTMLIonTabElement>) => void;
       /**
        * If true, the tab button will be selected. Defaults to `false`.
        */
       'selected'?: boolean;
-      /**
-       * The tab component for the button 
-       */
-      'tab'?: HTMLIonTabElement;
     }
   }
 }
@@ -7158,6 +7150,10 @@ declare global {
        * Emitted when the current tab is selected.
        */
       'onIonSelect'?: (event: CustomEvent<void>) => void;
+      /**
+       * Emitted when the tab props mutates. Used internally.
+       */
+      'onIonTabMutated'?: (event: CustomEvent<void>) => void;
       /**
        * If true, the tab will be selected. Defaults to `false`.
        */
@@ -7241,6 +7237,10 @@ declare global {
        */
       'layout'?: TabbarLayout;
       'mode'?: Mode;
+      /**
+       * Emitted when the tab bar is clicked  
+       */
+      'onIonTabbarClick'?: (event: CustomEvent<HTMLIonTabElement>) => void;
       /**
        * Set the position of the tabbar, relative to the content. Available options: `"top"`, `"bottom"`.
        */

core/src/components/tab-button/readme.md

@@ -8,11 +8,41 @@ TabButton is an internal component for tabs. Please see the [Tab docs](../tab) f
 
 ## Properties
 
+#### badge
+
+string
+
+
+#### badgeColor
+
+string
+
+
 #### color
 
 string
 
 
+#### disabled
+
+boolean
+
+
+#### href
+
+string
+
+
+#### icon
+
+string
+
+
+#### label
+
+string
+
+
 #### mode
 
 string
@@ -25,20 +55,43 @@ boolean
 If true, the tab button will be selected. Defaults to `false`.
 
 
-#### tab
-
-HTMLIonTabElement
-
-The tab component for the button
-
-
 ## Attributes
 
+#### badge
+
+string
+
+
+#### badge-color
+
+string
+
+
 #### color
 
 string
 
 
+#### disabled
+
+boolean
+
+
+#### href
+
+string
+
+
+#### icon
+
+string
+
+
+#### label
+
+string
+
+
 #### mode
 
 string
@@ -51,30 +104,6 @@ boolean
 If true, the tab button will be selected. Defaults to `false`.
 
 
-#### tab
-
-
-
-The tab component for the button
-
-
-## Events
-
-#### ionTabButtonDidLoad
-
-Emitted when the tab button is loaded
-
-
-#### ionTabButtonDidUnload
-
-Emitted when the tab button is destroyed
-
-
-#### ionTabbarClick
-
-Emitted when the tab bar is clicked
-
-
 
 ----------------------------------------------
 

core/src/components/tab-button/tab-button.tsx

@@ -1,4 +1,4 @@
-import { Component, Element, Event, EventEmitter, Listen, Prop, State } from '@stencil/core';
+import { Component, Element, Prop, State } from '@stencil/core';
 import { Color, Mode } from '../../interface';
 import { createColorClasses } from '../../utils/theme';
 
@@ -24,35 +24,12 @@ export class TabButton {
    * If true, the tab button will be selected. Defaults to `false`.
    */
   @Prop() selected = false;
-
+  @Prop() label?: string;
-  /** The tab component for the button */
+  @Prop() icon?: string;
-  @Prop() tab!: HTMLIonTabElement;
+  @Prop() badge?: string;
-
+  @Prop() disabled?: boolean;
-  /** Emitted when the tab bar is clicked  */
+  @Prop() badgeColor?: string;
-  @Event() ionTabbarClick!: EventEmitter<HTMLIonTabElement>;
+  @Prop() href?: string;
-
-  /** Emitted when the tab button is loaded */
-  @Event() ionTabButtonDidLoad!: EventEmitter<void>;
-
-  /** Emitted when the tab button is destroyed */
-  @Event() ionTabButtonDidUnload!: EventEmitter<void>;
-
-  componentDidLoad() {
-    this.ionTabButtonDidLoad.emit();
-  }
-
-  componentDidUnload() {
-    this.ionTabButtonDidUnload.emit();
-  }
-
-  @Listen('click')
-  protected onClick(ev: UIEvent) {
-    if (!this.tab.disabled) {
-      this.ionTabbarClick.emit(this.tab);
-    }
-    ev.stopPropagation();
-    ev.preventDefault();
-  }
 
   private onKeyUp() {
     this.keyFocus = true;
@@ -64,45 +41,41 @@ export class TabButton {
 
   hostData() {
     const selected = this.selected;
-    const tab = this.tab;
+    const hasLabel = !!this.label;
-    const hasLabel = !!tab.label;
+    const hasIcon = !!this.icon;
-    const hasIcon = !!tab.icon;
     const hasLabelOnly = (hasLabel && !hasIcon);
     const hasIconOnly = (hasIcon && !hasLabel);
-    const hasBadge = !!tab.badge;
+    const hasBadge = !!this.badge;
     return {
       'role': 'tab',
-      'id': tab.btnId,
       'aria-selected': selected,
       class: {
         ...createColorClasses(this.color),
-        'tab-hidden': !tab.show,
         'tab-selected': selected,
         'has-label': hasLabel,
         'has-icon': hasIcon,
         'has-label-only': hasLabelOnly,
         'has-icon-only': hasIconOnly,
         'has-badge': hasBadge,
-        'tab-button-disabled': tab.disabled,
+        'tab-button-disabled': this.disabled,
         'focused': this.keyFocus
       }
     };
   }
 
   render() {
-    const tab = this.tab;
+    const { icon, label, href, badge, badgeColor, mode } = this;
-    const href = tab.href || '#';
 
     return [
       <a
-        href={href}
+        href={href || '#'}
         class="tab-button-native"
         onKeyUp={this.onKeyUp.bind(this)}
         onBlur={this.onBlur.bind(this)}>
-        { tab.icon && <ion-icon class="tab-button-icon" icon={tab.icon}></ion-icon> }
+        { icon && <ion-icon class="tab-button-icon" icon={icon}></ion-icon> }
-        { tab.label && <span class="tab-button-text">{tab.label}</span> }
+        { label && <span class="tab-button-text">{label}</span> }
-        { tab.badge && <ion-badge class="tab-badge" color={tab.badgeColor}>{tab.badge}</ion-badge> }
+        { badge && <ion-badge class="tab-badge" color={badgeColor}>{badge}</ion-badge> }
-        { this.mode === 'md' && <ion-ripple-effect tapClick={true}/> }
+        { mode === 'md' && <ion-ripple-effect tapClick={true}/> }
       </a>
     ];
   }

core/src/components/tab/readme.md

@@ -217,6 +217,11 @@ If true, hide the tabs on child pages.
 Emitted when the current tab is selected.
 
 
+#### ionTabMutated
+
+Emitted when the tab props mutates. Used internally.
+
+
 ## Methods
 
 #### getTabId()

core/src/components/tab/tab.tsx

@@ -88,6 +88,11 @@ export class Tab {
    */
   @Event() ionSelect!: EventEmitter<void>;
 
+  /**
+   * Emitted when the tab props mutates. Used internally.
+   */
+  @Event() ionTabMutated!: EventEmitter<void>;
+
   componentWillLoad() {
     if (Build.isDev) {
       if (this.component && this.el.childElementCount > 0) {
@@ -99,6 +104,10 @@ export class Tab {
     }
   }
 
+  componentWillUpdate() {
+    this.ionTabMutated.emit();
+  }
+
   /** Get the Id for the tab */
   @Method()
   getTabId(): string|null {

core/src/components/tabbar/readme.md

@@ -128,6 +128,13 @@ boolean
 If true, the tabbar will be translucent. Defaults to `false`.
 
 
+## Events
+
+#### ionTabbarClick
+
+Emitted when the tab bar is clicked
+
+
 
 ----------------------------------------------
 

core/src/components/tabbar/tabbar.tsx

@@ -1,4 +1,4 @@
-import { Component, Element, Listen, Prop, QueueApi, State, Watch } from '@stencil/core';
+import { Component, Element, Event, EventEmitter, Listen, Prop, QueueApi, State, Watch } from '@stencil/core';
 import { Color, Mode, TabbarLayout, TabbarPlacement } from '../../interface';
 import { createColorClasses } from '../../utils/theme';
 
@@ -63,6 +63,9 @@ export class Tabbar {
    */
   @Prop() translucent = false;
 
+  /** Emitted when the tab bar is clicked  */
+  @Event() ionTabbarClick!: EventEmitter<HTMLIonTabElement>;
+
   @Listen('body:keyboardWillHide')
   protected onKeyboardWillHide() {
     setTimeout(() => this.hidden = false, 50);
@@ -80,9 +83,7 @@ export class Tabbar {
     this.highlight && this.updateHighlight();
   }
 
-  @Listen('ionTabButtonDidLoad')
+  componentDidLoad() {
-  @Listen('ionTabButtonDidUnload')
-  onTabButtonLoad() {
     this.scrollable && this.updateBoundaries();
     this.highlight && this.updateHighlight();
   }
@@ -195,9 +196,30 @@ export class Tabbar {
   }
 
   render() {
+    console.log('render tabbar');
+
     const selectedTab = this.selectedTab;
-    const ionTabbarHighlight = this.highlight ? <div class="animated tabbar-highlight"/> as HTMLElement : null;
+    const ionTabbarHighlight = this.highlight ? <div class="animated tabbar-highlight" /> as HTMLElement : null;
-    const tabButtons = this.tabs.map(tab => <ion-tab-button tab={tab} selected={selectedTab === tab} mode={this.mode} color={this.color}/>);
+    const tabButtons = this.tabs.map(tab => <ion-tab-button
+      id={tab.btnId}
+      label={tab.label}
+      icon={tab.icon}
+      badge={tab.badge}
+      disabled={tab.disabled}
+      badgeColor={tab.badgeColor}
+      href={tab.href}
+      selected={selectedTab === tab}
+      mode={this.mode}
+      color={this.color}
+      class={{ 'tab-hidden': !tab.show }}
+      onClick={(ev) => {
+        if (!tab.disabled) {
+          this.ionTabbarClick.emit(tab);
+        }
+        ev.stopPropagation();
+        ev.preventDefault();
+      }}
+    />);
 
     if (this.scrollable) {
       return [

core/src/components/tabs/tabs.tsx

@@ -14,7 +14,7 @@ export class Tabs implements NavOutlet {
   private tabsId = (++tabIds);
   private leavingTab?: HTMLIonTabElement;
 
-  @Element() el!: HTMLElement;
+  @Element() el!: HTMLStencilElement;
 
   @State() tabs: HTMLIonTabElement[] = [];
   @State() selectedTab?: HTMLIonTabElement;
@@ -101,11 +101,12 @@ export class Tabs implements NavOutlet {
     this.loadConfig('tabbarLayout', 'icon-top');
     this.loadConfig('tabbarHighlight', false);
 
+    this.initTabs();
+
     this.ionNavWillLoad.emit();
   }
 
   async componentDidLoad() {
-    await this.initTabs();
     await this.initSelect();
   }
 
@@ -114,8 +115,13 @@ export class Tabs implements NavOutlet {
     this.selectedTab = this.leavingTab = undefined;
   }
 
+  @Listen('ionTabMutated')
+  protected onTabMutated() {
+    this.el.forceUpdate();
+  }
+
   @Listen('ionTabbarClick')
-  protected tabChange(ev: CustomEvent<HTMLIonTabElement>) {
+  protected onTabClicked(ev: CustomEvent<HTMLIonTabElement>) {
     const selectedTab = ev.detail;
     if (this.useRouter && selectedTab.href != null) {
       const router = this.doc.querySelector('ion-router');
@@ -188,20 +194,18 @@ export class Tabs implements NavOutlet {
 
   private initTabs() {
     const tabs = this.tabs = Array.from(this.el.querySelectorAll('ion-tab'));
-    const tabPromises = tabs.map(tab => {
+    tabs.forEach(tab => {
       const id = `t-${this.tabsId}-${++this.ids}`;
       tab.btnId = 'tab-' + id;
       tab.id = 'tabpanel-' + id;
-      return tab.componentOnReady();
     });
-
-    return Promise.all(tabPromises);
   }
 
   private async initSelect(): Promise<void> {
+    const tabs = this.tabs;
     if (this.useRouter) {
       if (Build.isDev) {
-        const selectedTab = this.tabs.find(t => t.selected);
+        const selectedTab = tabs.find(t => t.selected);
         if (selectedTab) {
           console.warn('When using a router (ion-router) <ion-tab selected="true"> makes no difference' +
           'Define routes properly the define which tab is selected');
@@ -210,11 +214,11 @@ export class Tabs implements NavOutlet {
       return;
     }
     // find pre-selected tabs
-    const selectedTab = this.tabs.find(t => t.selected) ||
+    const selectedTab = tabs.find(t => t.selected) ||
-      this.tabs.find(t => t.show && !t.disabled);
+      tabs.find(t => t.show && !t.disabled);
 
     // reset all tabs none is selected
-    for (const tab of this.tabs) {
+    for (const tab of tabs) {
       if (tab !== selectedTab) {
         tab.selected = false;
       }
@@ -302,9 +306,11 @@ export class Tabs implements NavOutlet {
     ];
 
     if (!this.tabbarHidden) {
+      console.log('render tabs');
+
       dom.push(
         <ion-tabbar
-          tabs={this.tabs}
+          tabs={this.tabs.slice()}
           color={this.color}
           selectedTab={this.selectedTab}
           highlight={this.tabbarHighlight}