mirror of https://github.com/sveltejs/svelte
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
112 lines
2.6 KiB
112 lines
2.6 KiB
import { appendNode, assign, createComment, createElement, createText, detachNode, dispatchObservers, insertNode, proto } from "svelte/shared.js";
|
|
|
|
function create_main_fragment ( state, component ) {
|
|
function get_block ( state ) {
|
|
if ( state.foo ) return create_if_block;
|
|
return create_if_block_1;
|
|
}
|
|
|
|
var current_block = get_block( state );
|
|
var if_block = current_block( state, component );
|
|
|
|
var if_block_anchor = createComment();
|
|
|
|
return {
|
|
mount: function ( target, anchor ) {
|
|
if_block.mount( target, anchor );
|
|
insertNode( if_block_anchor, target, anchor );
|
|
},
|
|
|
|
update: function ( changed, state ) {
|
|
if ( current_block !== ( current_block = get_block( state ) ) ) {
|
|
if_block.destroy( true );
|
|
if_block = current_block( state, component );
|
|
if_block.mount( if_block_anchor.parentNode, if_block_anchor );
|
|
}
|
|
},
|
|
|
|
destroy: function ( detach ) {
|
|
if_block.destroy( detach );
|
|
|
|
if ( detach ) {
|
|
detachNode( if_block_anchor );
|
|
}
|
|
}
|
|
};
|
|
}
|
|
|
|
function create_if_block ( state, component ) {
|
|
var p = createElement( 'p' );
|
|
appendNode( createText( "foo!" ), p );
|
|
|
|
return {
|
|
mount: function ( target, anchor ) {
|
|
insertNode( p, target, anchor );
|
|
},
|
|
|
|
destroy: function ( detach ) {
|
|
if ( detach ) {
|
|
detachNode( p );
|
|
}
|
|
}
|
|
};
|
|
}
|
|
|
|
function create_if_block_1 ( state, component ) {
|
|
var p = createElement( 'p' );
|
|
appendNode( createText( "not foo!" ), p );
|
|
|
|
return {
|
|
mount: function ( target, anchor ) {
|
|
insertNode( p, target, anchor );
|
|
},
|
|
|
|
destroy: function ( detach ) {
|
|
if ( detach ) {
|
|
detachNode( p );
|
|
}
|
|
}
|
|
};
|
|
}
|
|
|
|
function SvelteComponent ( options ) {
|
|
options = options || {};
|
|
this._state = options.data || {};
|
|
|
|
this._observers = {
|
|
pre: Object.create( null ),
|
|
post: Object.create( null )
|
|
};
|
|
|
|
this._handlers = Object.create( null );
|
|
|
|
this._root = options._root || this;
|
|
this._yield = options._yield;
|
|
|
|
this._torndown = false;
|
|
|
|
this._fragment = create_main_fragment( this._state, this );
|
|
if ( options.target ) this._fragment.mount( options.target, null );
|
|
}
|
|
|
|
assign( SvelteComponent.prototype, proto );
|
|
|
|
SvelteComponent.prototype._set = function _set ( newState ) {
|
|
var oldState = this._state;
|
|
this._state = assign( {}, oldState, newState );
|
|
dispatchObservers( this, this._observers.pre, newState, oldState );
|
|
this._fragment.update( newState, this._state );
|
|
dispatchObservers( this, this._observers.post, newState, oldState );
|
|
};
|
|
|
|
SvelteComponent.prototype.teardown = SvelteComponent.prototype.destroy = function destroy ( detach ) {
|
|
this.fire( 'destroy' );
|
|
|
|
this._fragment.destroy( detach !== false );
|
|
this._fragment = null;
|
|
|
|
this._state = {};
|
|
this._torndown = true;
|
|
};
|
|
|
|
export default SvelteComponent; |