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intro transitions in each-blocks

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pull/525/head
Rich-Harris 7 years ago
parent 65064cb70c
commit a2cd983e99
6 changed files with 88 additions and 37 deletions
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38
src/generators/dom/Block.js
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@ -33,8 +33,6 @@ export default class Block {
this.hasIntroMethod = false; // a block could have an intro method but not intro transitions, e.g. if a sibling block has intros
this.hasOutroMethod = false;
this.hasIntroTransitions = false;
this.hasOutroTransitions = false;
this.outros = 0;
this.aliases = new Map();
@ -109,13 +107,15 @@ export default class Block {
render () {
let introing;
if ( this.hasIntroTransitions ) {
const hasIntros = !this.builders.intro.isEmpty();
if ( hasIntros ) {
introing = this.getUniqueName( 'introing' );
this.addVariable( introing );
}
let outroing;
if ( this.hasOutroTransitions ) {
const hasOutros = !this.builders.outro.isEmpty();
if ( hasOutros ) {
outroing = this.getUniqueName( 'outroing' );
this.addVariable( outroing );
}
@ -178,21 +178,21 @@ export default class Block {
}
if ( this.hasIntroMethod ) {
if ( this.builders.intro.isEmpty() ) {
if ( hasIntros ) {
properties.addBlock( deindent`
intro: function ( ${this.target}, anchor ) {
if ( ${introing} ) return;
${introing} = true;
${hasOutros && `${outroing} = false;`}
${this.builders.intro}
this.mount( ${this.target}, anchor );
},
` );
} else {
properties.addBlock( deindent`
intro: function ( ${this.target}, anchor ) {
if ( ${introing} ) return;
${introing} = true;
${this.hasOutroTransitions && `${outroing} = false;`}
${this.builders.intro}
this.mount( ${this.target}, anchor );
},
` );
@ -200,24 +200,24 @@ export default class Block {
}
if ( this.hasOutroMethod ) {
if ( this.builders.outro.isEmpty() ) {
properties.addBlock( deindent`
outro: function ( outrocallback ) {
outrocallback();
},
` );
} else {
if ( hasOutros ) {
properties.addBlock( deindent`
outro: function ( ${this.alias( 'outrocallback' )} ) {
if ( ${outroing} ) return;
${outroing} = true;
${this.hasIntroTransitions && `${introing} = false;`}
${hasIntros && `${introing} = false;`}
var ${this.alias( 'outros' )} = ${this.outros};
${this.builders.outro}
},
` );
} else {
properties.addBlock( deindent`
outro: function ( outrocallback ) {
outrocallback();
},
` );
}
}

8
src/generators/dom/preprocess.js
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@ -80,8 +80,8 @@ const preprocessors = {
block.addDependencies( node._block.dependencies );
}
if ( node._block.hasIntroTransitions ) hasIntros = true;
if ( node._block.hasOutroTransitions ) hasOutros = true;
if ( node._block.hasIntroMethod ) hasIntros = true;
if ( node._block.hasOutroMethod ) hasOutros = true;
if ( isElseIf( node.else ) ) {
attachBlocks( node.else.children[0] );
@ -209,9 +209,9 @@ const preprocessors = {
}
else if ( attribute.type === 'Transition' ) {
if ( attribute.intro ) generator.hasIntroTransitions = block.hasIntroTransitions = true;
if ( attribute.intro ) generator.hasIntroTransitions = block.hasIntroMethod = true;
if ( attribute.outro ) {
generator.hasOutroTransitions = block.hasOutroTransitions = true;
generator.hasOutroTransitions = block.hasOutroMethod = true;
block.outros += 1;
}
}

27
src/generators/dom/visitors/EachBlock.js
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@ -11,7 +11,8 @@ export default function visitEachBlock ( generator, block, state, node ) {
const params = block.params.join( ', ' );
const anchor = node.needsAnchor ? block.getUniqueName( `${each_block}_anchor` ) : ( node.next && node.next._state.name ) || 'null';
const vars = { each_block, create_each_block, each_block_value, iterations, i, params, anchor };
const mountOrIntro = node._block.hasIntroMethod ? 'intro' : 'mount';
const vars = { each_block, create_each_block, each_block_value, iterations, i, params, anchor, mountOrIntro };
const { snippet } = block.contextualise( node.expression );
@ -29,7 +30,7 @@ export default function visitEachBlock ( generator, block, state, node ) {
if ( isToplevel ) {
block.builders.mount.addBlock( deindent`
for ( var ${i} = 0; ${i} < ${iterations}.length; ${i} += 1 ) {
${iterations}[${i}].mount( ${block.target}, null );
${iterations}[${i}].${mountOrIntro}( ${block.target}, null );
}
` );
}
@ -52,13 +53,13 @@ export default function visitEachBlock ( generator, block, state, node ) {
block.builders.create.addBlock( deindent`
if ( !${each_block_value}.length ) {
${each_block_else} = ${node.else._block.name}( ${params}, ${block.component} );
${!isToplevel ? `${each_block_else}.mount( ${state.parentNode}, null );` : ''}
${!isToplevel ? `${each_block_else}.${mountOrIntro}( ${state.parentNode}, null );` : ''}
}
` );
block.builders.mount.addBlock( deindent`
if ( ${each_block_else} ) {
${each_block_else}.mount( ${state.parentNode || block.target}, null );
${each_block_else}.${mountOrIntro}( ${state.parentNode || block.target}, null );
}
` );
@ -70,7 +71,7 @@ export default function visitEachBlock ( generator, block, state, node ) {
${each_block_else}.update( changed, ${params} );
} else if ( !${each_block_value}.length ) {
${each_block_else} = ${node.else._block.name}( ${params}, ${block.component} );
${each_block_else}.mount( ${parentNode}, ${anchor} );
${each_block_else}.${mountOrIntro}( ${parentNode}, ${anchor} );
} else if ( ${each_block_else} ) {
${each_block_else}.destroy( true );
${each_block_else} = null;
@ -85,7 +86,7 @@ export default function visitEachBlock ( generator, block, state, node ) {
}
} else if ( !${each_block_else} ) {
${each_block_else} = ${node.else._block.name}( ${params}, ${block.component} );
${each_block_else}.mount( ${parentNode}, ${anchor} );
${each_block_else}.${mountOrIntro}( ${parentNode}, ${anchor} );
}
` );
}
@ -109,7 +110,7 @@ export default function visitEachBlock ( generator, block, state, node ) {
}
}
function keyed ( generator, block, state, node, snippet, { each_block, create_each_block, each_block_value, iterations, i, params, anchor } ) {
function keyed ( generator, block, state, node, snippet, { each_block, create_each_block, each_block_value, iterations, i, params, anchor, mountOrIntro } ) {
const fragment = block.getUniqueName( 'fragment' );
const value = block.getUniqueName( 'value' );
const key = block.getUniqueName( 'key' );
@ -129,7 +130,7 @@ function keyed ( generator, block, state, node, snippet, { each_block, create_ea
if ( state.parentNode ) {
create.addLine(
`${iterations}[${i}].mount( ${state.parentNode}, null );`
`${iterations}[${i}].${mountOrIntro}( ${state.parentNode}, null );`
);
}
@ -166,7 +167,7 @@ function keyed ( generator, block, state, node, snippet, { each_block, create_ea
${_iterations}[${i}] = ${_lookup}[ ${key} ] = ${create_each_block}( ${params}, ${each_block_value}, ${each_block_value}[${i}], ${i}, ${block.component}${node.key ? `, ${key}` : `` } );
}
${_iterations}[${i}].mount( ${fragment}, null );
${_iterations}[${i}].${mountOrIntro}( ${fragment}, null );
}
// remove old iterations
@ -184,7 +185,7 @@ function keyed ( generator, block, state, node, snippet, { each_block, create_ea
` );
}
function unkeyed ( generator, block, state, node, snippet, { create_each_block, each_block_value, iterations, i, params, anchor } ) {
function unkeyed ( generator, block, state, node, snippet, { create_each_block, each_block_value, iterations, i, params, anchor, mountOrIntro } ) {
const create = new CodeBuilder();
create.addLine(
@ -193,7 +194,7 @@ function unkeyed ( generator, block, state, node, snippet, { create_each_block,
if ( state.parentNode ) {
create.addLine(
`${iterations}[${i}].mount( ${state.parentNode}, null );`
`${iterations}[${i}].${mountOrIntro}( ${state.parentNode}, null );`
);
}
@ -222,12 +223,12 @@ function unkeyed ( generator, block, state, node, snippet, { create_each_block,
${iterations}[${i}].update( changed, ${params}, ${each_block_value}, ${each_block_value}[${i}], ${i} );
} else {
${iterations}[${i}] = ${create_each_block}( ${params}, ${each_block_value}, ${each_block_value}[${i}], ${i}, ${block.component} );
${iterations}[${i}].mount( ${parentNode}, ${anchor} );
${iterations}[${i}].${mountOrIntro}( ${parentNode}, ${anchor} );
}
` :
deindent`
${iterations}[${i}] = ${create_each_block}( ${params}, ${each_block_value}, ${each_block_value}[${i}], ${i}, ${block.component} );
${iterations}[${i}].mount( ${parentNode}, ${anchor} );
${iterations}[${i}].${mountOrIntro}( ${parentNode}, ${anchor} );
`;
const start = node._block.hasUpdateMethod ? '0' : `${iterations}.length`;

32
test/runtime/samples/transition-js-each-block-intro/_config.js
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@ -0,0 +1,32 @@
export default {
data: {
things: [ 'a', 'b', 'c' ]
},
test ( assert, component, target, window, raf ) {
let divs = target.querySelectorAll( 'div' );
assert.equal( divs[0].foo, 0 );
assert.equal( divs[1].foo, 0 );
assert.equal( divs[2].foo, 0 );
raf.tick( 50 );
assert.equal( divs[0].foo, 0.5 );
assert.equal( divs[1].foo, 0.5 );
assert.equal( divs[2].foo, 0.5 );
component.set({ things: [ 'a', 'b', 'c', 'd' ] });
divs = target.querySelectorAll( 'div' );
assert.equal( divs[0].foo, 0.5 );
assert.equal( divs[1].foo, 0.5 );
assert.equal( divs[2].foo, 0.5 );
assert.equal( divs[3].foo, 0 );
raf.tick( 75 );
assert.equal( divs[0].foo, 0.75 );
assert.equal( divs[1].foo, 0.75 );
assert.equal( divs[2].foo, 0.75 );
assert.equal( divs[3].foo, 0.25 );
component.destroy();
}
};

18
test/runtime/samples/transition-js-each-block-intro/main.html
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@ -0,0 +1,18 @@
{{#each things as thing}}
<div in:foo>{{thing}}</div>
{{/each}}
<script>
export default {
transitions: {
foo: function ( node, params ) {
return {
duration: 100,
tick: t => {
node.foo = t;
}
};
}
}
};
</script>

2
test/server-side-rendering/samples/comment/_actual.html
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@ -1,3 +1,3 @@
<p>before</p>
<p>after</p>
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