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fix(compiler): return handler value for event modifiers instead of un… #7704

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merged 4 commits into from
Mar 8, 2018
Merged

fix(compiler): return handler value for event modifiers instead of un… #7704

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c065553
Return only when the provided expression is a function but not when i…
alex-stepchenkov-neyber Mar 1, 2018
d456933
Return value for function expression
alex-stepchenkov-neyber Mar 1, 2018
9e9f6c5
Add more tests for #7704
alex-stepchenkov-neyber Mar 3, 2018
fb86d75
Merge branch 'dev' into fix/compiler-inavlid-return-with-event-modifiers
yyx990803 Mar 8, 2018
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2 changes: 1 addition & 1 deletion src/compiler/codegen/events.js
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Original file line number Diff line number Diff line change
Expand Up @@ -119,7 +119,7 @@ function genHandler (
code += genModifierCode
}
const handlerCode = isMethodPath
? handler.value + '($event)'
? `return ${handler.value}($event)`
: isFunctionExpression
? `(${handler.value})($event)`
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You probably need to return here as well and adapt other test cases

: handler.value
Expand Down
44 changes: 22 additions & 22 deletions test/unit/modules/compiler/codegen.spec.js
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Original file line number Diff line number Diff line change
Expand Up @@ -265,117 +265,117 @@ describe('codegen', () => {
it('generate events with keycode', () => {
assertCodegen(
'<input @input.enter="onInput">',
`with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key))return null;onInput($event)}}})}`
`with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key))return null;return onInput($event)}}})}`
)
// multiple keycodes (delete)
assertCodegen(
'<input @input.delete="onInput">',
`with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"delete",[8,46],$event.key))return null;onInput($event)}}})}`
`with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"delete",[8,46],$event.key))return null;return onInput($event)}}})}`
)
// multiple keycodes (chained)
assertCodegen(
'<input @keydown.enter.delete="onInput">',
`with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key)&&_k($event.keyCode,"delete",[8,46],$event.key))return null;onInput($event)}}})}`
`with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key)&&_k($event.keyCode,"delete",[8,46],$event.key))return null;return onInput($event)}}})}`
)
// number keycode
assertCodegen(
'<input @input.13="onInput">',
`with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&$event.keyCode!==13)return null;onInput($event)}}})}`
`with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&$event.keyCode!==13)return null;return onInput($event)}}})}`
)
// custom keycode
assertCodegen(
'<input @input.custom="onInput">',
`with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"custom",undefined,$event.key))return null;onInput($event)}}})}`
`with(this){return _c('input',{on:{"input":function($event){if(!('button' in $event)&&_k($event.keyCode,"custom",undefined,$event.key))return null;return onInput($event)}}})}`
)
})

it('generate events with generic modifiers', () => {
assertCodegen(
'<input @input.stop="onInput">',
`with(this){return _c('input',{on:{"input":function($event){$event.stopPropagation();onInput($event)}}})}`
`with(this){return _c('input',{on:{"input":function($event){$event.stopPropagation();return onInput($event)}}})}`
)
assertCodegen(
'<input @input.prevent="onInput">',
`with(this){return _c('input',{on:{"input":function($event){$event.preventDefault();onInput($event)}}})}`
`with(this){return _c('input',{on:{"input":function($event){$event.preventDefault();return onInput($event)}}})}`
)
assertCodegen(
'<input @input.self="onInput">',
`with(this){return _c('input',{on:{"input":function($event){if($event.target !== $event.currentTarget)return null;onInput($event)}}})}`
`with(this){return _c('input',{on:{"input":function($event){if($event.target !== $event.currentTarget)return null;return onInput($event)}}})}`
)
})

// GitHub Issues #5146
it('generate events with generic modifiers and keycode correct order', () => {
assertCodegen(
'<input @keydown.enter.prevent="onInput">',
`with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key))return null;$event.preventDefault();onInput($event)}}})}`
`with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key))return null;$event.preventDefault();return onInput($event)}}})}`
)

assertCodegen(
'<input @keydown.enter.stop="onInput">',
`with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key))return null;$event.stopPropagation();onInput($event)}}})}`
`with(this){return _c('input',{on:{"keydown":function($event){if(!('button' in $event)&&_k($event.keyCode,"enter",13,$event.key))return null;$event.stopPropagation();return onInput($event)}}})}`
)
})

it('generate events with mouse event modifiers', () => {
assertCodegen(
'<input @click.ctrl="onClick">',
`with(this){return _c('input',{on:{"click":function($event){if(!$event.ctrlKey)return null;onClick($event)}}})}`
`with(this){return _c('input',{on:{"click":function($event){if(!$event.ctrlKey)return null;return onClick($event)}}})}`
)
assertCodegen(
'<input @click.shift="onClick">',
`with(this){return _c('input',{on:{"click":function($event){if(!$event.shiftKey)return null;onClick($event)}}})}`
`with(this){return _c('input',{on:{"click":function($event){if(!$event.shiftKey)return null;return onClick($event)}}})}`
)
assertCodegen(
'<input @click.alt="onClick">',
`with(this){return _c('input',{on:{"click":function($event){if(!$event.altKey)return null;onClick($event)}}})}`
`with(this){return _c('input',{on:{"click":function($event){if(!$event.altKey)return null;return onClick($event)}}})}`
)
assertCodegen(
'<input @click.meta="onClick">',
`with(this){return _c('input',{on:{"click":function($event){if(!$event.metaKey)return null;onClick($event)}}})}`
`with(this){return _c('input',{on:{"click":function($event){if(!$event.metaKey)return null;return onClick($event)}}})}`
)
assertCodegen(
'<input @click.exact="onClick">',
`with(this){return _c('input',{on:{"click":function($event){if($event.ctrlKey||$event.shiftKey||$event.altKey||$event.metaKey)return null;onClick($event)}}})}`
`with(this){return _c('input',{on:{"click":function($event){if($event.ctrlKey||$event.shiftKey||$event.altKey||$event.metaKey)return null;return onClick($event)}}})}`
)
assertCodegen(
'<input @click.ctrl.exact="onClick">',
`with(this){return _c('input',{on:{"click":function($event){if(!$event.ctrlKey)return null;if($event.shiftKey||$event.altKey||$event.metaKey)return null;onClick($event)}}})}`
`with(this){return _c('input',{on:{"click":function($event){if(!$event.ctrlKey)return null;if($event.shiftKey||$event.altKey||$event.metaKey)return null;return onClick($event)}}})}`
)
})

it('generate events with multiple modifiers', () => {
assertCodegen(
'<input @input.stop.prevent.self="onInput">',
`with(this){return _c('input',{on:{"input":function($event){$event.stopPropagation();$event.preventDefault();if($event.target !== $event.currentTarget)return null;onInput($event)}}})}`
`with(this){return _c('input',{on:{"input":function($event){$event.stopPropagation();$event.preventDefault();if($event.target !== $event.currentTarget)return null;return onInput($event)}}})}`
)
})

it('generate events with capture modifier', () => {
assertCodegen(
'<input @input.capture="onInput">',
`with(this){return _c('input',{on:{"!input":function($event){onInput($event)}}})}`
`with(this){return _c('input',{on:{"!input":function($event){return onInput($event)}}})}`
)
})

it('generate events with once modifier', () => {
assertCodegen(
'<input @input.once="onInput">',
`with(this){return _c('input',{on:{"~input":function($event){onInput($event)}}})}`
`with(this){return _c('input',{on:{"~input":function($event){return onInput($event)}}})}`
)
})

it('generate events with capture and once modifier', () => {
assertCodegen(
'<input @input.capture.once="onInput">',
`with(this){return _c('input',{on:{"~!input":function($event){onInput($event)}}})}`
`with(this){return _c('input',{on:{"~!input":function($event){return onInput($event)}}})}`
)
})

it('generate events with once and capture modifier', () => {
assertCodegen(
'<input @input.once.capture="onInput">',
`with(this){return _c('input',{on:{"~!input":function($event){onInput($event)}}})}`
`with(this){return _c('input',{on:{"~!input":function($event){return onInput($event)}}})}`
)
})

Expand Down Expand Up @@ -445,7 +445,7 @@ describe('codegen', () => {
it('generate multiple event handlers', () => {
assertCodegen(
'<input @input="current++" @input.stop="onInput">',
`with(this){return _c('input',{on:{"input":[function($event){current++},function($event){$event.stopPropagation();onInput($event)}]}})}`
`with(this){return _c('input',{on:{"input":[function($event){current++},function($event){$event.stopPropagation();return onInput($event)}]}})}`
)
})

Expand Down