App / Core

• App Parameters
• App Methods & Properties
• App Events
• CSS Variables

When we init the app we can use the new Framework7 constructor and pass an object with main app parameters:

var app = new Framework7({
  // App id
  id: 'com.myapp.test',
  // Enable swipe panel
  panel: {
    swipe: true,
  },
  // ... other parameters
});

This constructor returns main app Framework7 instance.

App Parameters

Lets look at the list of available parameters:

var app = new Framework7({
  on: {
    init: function () {
      console.log('App initialized');
    },
    pageInit: function () {
      console.log('Page initialized');
    },
  }
})

var app = new Framework7({
  clicks: {
    externalLinks: '.external',
  }
})

var app = new Framework7({
  touch: {
    tapHold: true,
  }
})

var app = new Framework7({
  serviceWorker: {
    path: './service-worker.js',
    scope: '/',
  }
})

These are default app parameters for app core module.

Most of components that has JavaScript API may extend this list of parameters with the property named as component. For example Panel component extends app parameters with panel property that accepts Panel specific parameters.

Example:

var app = new Framework7({
  id: 'com.myapp.test',
  // Extended by Panel component:
  panel: {
    swipe: true,
    visibleBreakpoint: 1024,
  },
  // Extended by Dialog component:
  dialog: {
    title: 'My App',
  },
  // Extended by Statusbar component:
  statusbar: {
    iosOverlaysWebview: true,
  },
});

App Methods & Properties

Returned Framework7 instance app contains a lot of useful properties and methods:

Same as with app parameters most of components that has JavaScript API may extend this list of properties with the property named as component. For example Panel component extends app instance properties with panel property that accepts Panel specific properties and methods.

Example:

// Open panel
app.panel.open('left');

// Hide statusbar
app.statusbar.hide();

App Events

App instance emits the following core events:

And again, most of components that has JavaScript API may extend this list of events like Panel component will also trigger additional events on app instance.

Examples:

app.on('panelOpen', function (panel) {
  console.log('Panel ' + panel.side + ' opened');
});

app.on('connection', function (isOnline) {
  if (isOnline) {
    console.log('app is online now')
  } else {
    console.log('app is offline now')
  }
});

app.on('darkModeChange', function (isDark) {
  if (isDark) {
    console.log('color scheme changed to Dark')
  } else {
    console.log('color scheme changed to Light')
  }
});

CSS Variables

:root {
  --f7-theme-color: #007aff;
  --f7-theme-color-rgb: 0, 122, 255;
  --f7-theme-color-shade: #0066d6;
  --f7-theme-color-tint: #298fff;
  --f7-safe-area-left: 0px;
  --f7-safe-area-right: 0px;
  --f7-safe-area-top: 0px;
  --f7-safe-area-bottom: 0px;
  --f7-safe-area-outer-left: 0px;
  --f7-safe-area-outer-right: 0px;
  --f7-device-pixel-ratio: 1;
}
@supports (left: env(safe-area-inset-left)) {
  :root {
    --f7-safe-area-top: env(safe-area-inset-top);
    --f7-safe-area-bottom: env(safe-area-inset-bottom);
  }
  :root .ios-left-edge,
  :root .ios-edges,
  :root .safe-area-left,
  :root .safe-areas,
  :root .popup,
  :root .sheet-modal,
  :root .panel-left {
    --f7-safe-area-left: env(safe-area-inset-left);
    --f7-safe-area-outer-left: env(safe-area-inset-left);
  }
  :root .ios-right-edge,
  :root .ios-edges,
  :root .safe-area-right,
  :root .safe-areas,
  :root .popup,
  :root .sheet-modal,
  :root .panel-right {
    --f7-safe-area-right: env(safe-area-inset-right);
    --f7-safe-area-outer-right: env(safe-area-inset-right);
  }
  :root .no-safe-areas,
  :root .no-safe-area-left,
  :root .no-ios-edges,
  :root .no-ios-left-edge {
    --f7-safe-area-left: 0px;
    --f7-safe-area-outer-left: 0px;
  }
  :root .no-safe-areas,
  :root .no-safe-area-right,
  :root .no-ios-edges,
  :root .no-ios-right-edge {
    --f7-safe-area-right: 0px;
    --f7-safe-area-outer-right: 0px;
  }
}
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 2dppx) {
  :root {
    --f7-device-pixel-ratio: 2;
  }
}
@media (-webkit-min-device-pixel-ratio: 3), (min-resolution: 3dppx) {
  :root {
    --f7-device-pixel-ratio: 3;
  }
}
/*====================
  Fonts & Bars
  ==================== */
:root {
  --f7-font-size: 14px;
  /*
  --f7-bars-link-color: var(--f7-theme-color);
  */
  --f7-bars-bg-image: none;
  --f7-bars-translucent-opacity: 0.8;
  --f7-bars-translucent-blur: 20px;
  --f7-bars-shadow-bottom-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.25) 0%, rgba(0, 0, 0, 0.08) 40%, rgba(0, 0, 0, 0.04) 50%, rgba(0, 0, 0, 0) 90%, rgba(0, 0, 0, 0) 100%);
  --f7-bars-shadow-top-image: linear-gradient(to top, rgba(0, 0, 0, 0.25) 0%, rgba(0, 0, 0, 0.08) 40%, rgba(0, 0, 0, 0.04) 50%, rgba(0, 0, 0, 0) 90%, rgba(0, 0, 0, 0) 100%);
  --f7-bars-text-color: #000;
  --f7-bars-bg-color: #f7f7f8;
  --f7-bars-bg-color-rgb: 247, 247, 248;
}
:root .dark,
:root.dark {
  --f7-bars-text-color: #fff;
}
.ios {
  --f7-font-family: -apple-system, SF Pro Text, SF UI Text, system-ui, Helvetica Neue, Helvetica, Arial, sans-serif;
  --f7-line-height: 1.4;
  --f7-text-color: #000;
  --f7-bars-border-color: rgba(0, 0, 0, 0.25);
}
.ios .dark,
.ios.dark {
  --f7-text-color: #fff;
  --f7-bars-bg-color: #121212;
  --f7-bars-bg-color-rgb: 19, 19, 19;
  --f7-bars-border-color: rgba(255, 255, 255, 0.1);
}
.md {
  --f7-font-family: Roboto, system-ui, Noto, Helvetica, Arial, sans-serif;
  --f7-line-height: 1.5;
  --f7-bars-border-color: transparent;
  --f7-text-color: #212121;
}
.md .dark,
.md.dark {
  --f7-text-color: rgba(255, 255, 255, 0.87);
  --f7-bars-bg-color: #202020;
}
.aurora {
  --f7-font-family: -apple-system, system-ui, Helvetica, Arial, sans-serif;
  --f7-line-height: 1.5;
  --f7-text-color: #000;
  --f7-bars-border-color: rgba(0, 0, 0, 0.2);
}
.aurora .dark,
.aurora.dark {
  --f7-text-color: #fff;
  --f7-bars-bg-color: #202020;
  --f7-bars-border-color: rgba(255, 255, 255, 0.1);
}