dialog要素でつくるモーダルダイアログ

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EJBMPHཁૉͰͭ͘Δ ϞʔμϧμΠΞϩά $PEFST)JHI 1BSU খࢁాߊߒ

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w ը໘ͷ࠷લ໘ʹදࣔ͞ΕΔϘοΫε w ϘοΫε಺ʹίϯςϯπ͕ల։͞ΕΔ w ด͡ΔϘλϯ͕͍͍ͭͯΔ w എ໘ʹΦʔόʔϨΠ͕͋Δ ϞʔμϧμΠΞϩάͱ͸

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w ͍ͭ΋ಉ͡+4ϥΠϒϥϦΛ࢖ͬͯ͠·͏   ʢΧελϚΠζͮ͠Β͍ʣ w Ϟʔμϧͷ[JOEFY͸͍ͭ͘ʹ͢Δʁ w λϒΩʔΛԡ͢ͱϞʔμϧ֎ʹҠಈͯ͠͠·͏ w 3FBDUͷDSFBUF1PSUBM ΍   7VFͷ5FMFQPSU͕ඞཁ Ϟʔμϧͷ͓೰Έ

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EJBMPHͰղܾͰ͖·͢ʂ

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גࣜձࣾϐΫηϧάϦου খࢁాߊߒ @yomotsu

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Ϟʔμϧ༻ͷཁૉEJBMPH ॏͳΓͷ࢓૊Έ $44ͰΧελϚΠζ EJBMPHͷऑ఺ ͓඼ॻ͖

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Ϟʔμϧ༻ͷཁૉ   EJBMPH

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w ೥ɺچ࢓༷ͷEJBMPH͕࡟আ w ೥ɺ)5.--JWJOH4UBOEBSEʹ   ݱ࢓༷Ͱ௥Ճ w ೥ɺ$ISPNJVNͰαϙʔτ w ೥ɺ)5.-ͱͯ͠8$࢓༷ʹ௥Ճ EJBMPH

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https://html.spec.whatwg.org/multipage/interactive-elements.html#the-dialog-element

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簡易モーダル

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簡易モーダル

  開く

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簡易モーダル

  開く

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簡易モーダル

  開く

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簡易モーダル

閉じる   開く

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w ɹ$ISPNF   ɹ4BGBSJ   ɹ'JSFGPY   ͰαϙʔτࡁΈ w ඇαϙʔτϒϥ΢β޲͚   ϙϦϑΟϧ͕͋Δ EJBMPH

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https://github.com/GoogleChrome/dialog-poly fi ll

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ॏͳΓͷ࢓૊Έ

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w [JOEFY͸਺஋Ͱࢦఆ͢Δ w ߴ͍஋͕લ໘ʹදࣔ w ਌ͷॏͳΓ͕༏ઌ   ʢελοΩϯάίϯςΩετʣ [JOEFYͷ͓͞Β͍

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w ࠷લ໘ʹදࣔ͢ΔͨΊͷ஋͸͍ͭ͘ʁ w ೖΕࢠʹͳΔͱ   ࠷લ໘ʹදࣔͰ͖ͳ͍ [JOEFYͷ͓೰Έ

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w EJBMPHʹద༻͞ΕΔ   ॏͳΓϨΠϠʔ w ඞͣ࠷લ໘ʹදࣔ͞ΕΔ w $44 [JOEFYͳͲ Ͱ͸௒͑ΒΕͳ͍ τοϓϨΠϠʔ

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https://fullscreen.spec.whatwg.org/#top-layer

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EJBMPH͸   ࠷લ໘͕อূ͞Ε͍ͯΔ   ελοΩϯάίϯςΩετͷೖΕࢠ΋ಥഁ

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$44ͰΧελϚΠζ

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w EJBMPHʹ͸ϒϥ΢β$44͕ޮ͍͍ͯΔɻ   $44͸্ॻ͖Մೳ w എܠ෦෼͸   CBDLESPQηϨΫλͰ੍ޚͰ͖Δ   ϙϦϑΟϧར༻࣌͸CBDLESPQ $44ͰΧελϚΠζ

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EJBMPHͷऑ఺   എܠΫϦοΫͰด͍ͨ͡

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EJBMPHΛΫϦοΫͨ͠ͱ͖   ΫϦοΫ஍఺͕ɺຊମΑΓ֎ͳΒ   ด͡Δ

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const $modal = document.querySelector( '#my-modal' ); $modal.removeEventListener( 'click', onDialogClick ); function onDialogClick( event ) { const elRect = $modal.getBoundingClientRect(); const isInDialog = elRect.top <= event.clientY && event.clientY <= elRect.bottom && elRect.left <= event.clientX && event.clientX <= elRect.right; // もし、内側をクリックしていたら、なにもしない if ( isInDialog ) return; // それ以外（外側をクリック）なら閉じる $modal.close(); }

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EJBMPHͷऑ఺   ΞχϝʔγϣϯͰด͍ͨ͡

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w ։͘ࡍʹɺ   $44"OJNBUJPOTΛద༻͢Δ w ։͘௚ޙɺด͡Δ௚લʹ   DMBTTΛมߋͯ͠   $445SBOTJUJPOΛద༻͢Δ Ξχϝʔγϣϯ

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@keyframes fadeIn { 0% { opacity: 0; } 100% { opacity: 1; } }

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.myModal[open] { animation: fadeIn 1s 1; } .myModal[open]::backdrop { animation: fadeIn 1s 1; } EJBMPH͕։͘ͱ PQFOଐੑ͕෇͘

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.myModal:modal { animation: fadeIn 1s 1; } .myModal:modal::backdrop { animation: fadeIn 1s 1; } NPEBMٖࣅΫϥε͸   ϙϦϑΟϧͰ͖ͳ͍

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w ։͘ࡍʹɺ   $44"OJNBUJPOTΛద༻͢Δ w ։͘௚ޙɺด͡Δ௚લʹ   DMBTTΛมߋͯ͠   $445SBOTJUJPOΛద༻͢Δ Ξχϝʔγϣϯ

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dialog.myModal { opacity: 0; transform: scale( .9 ); transition: opacity .5s, transform .5s; } dialog.myModal.-opening { opacity: 1; transform: scale( 1 ); }

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const showModal = ( id ) => { const $modal = document.getElementById( id ); $modal.showModal(); requestAnimationFrame( () => $modal.classList.add( '-opening' ) ); } ϑϨʔϜ଴͔ͬͯΒ   ΫϥεΛ෇༩͢Δ

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const closeModal = ( id ) => { const $modal = document.getElementById( id ); $modal.classList.remove( '-opening' ); $modal.addEventListener( 'transitionend', $modal.close, { once: true } ); } Ξχϝʔγϣϯ׬ྃΛ଴ͬͯ   DMPTF͢Δ

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EJBMPHͷऑ఺   εΫϩʔϧΛࢭΊ͍ͨ

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const showModal = ( id ) => { const $modal = document.getElementById( id ); $modal.showModal(); noScroll.on(); // ϖʔδຊମͷεΫϩʔϧΛ཈ࢭ͢Δ $modal.addEventListener( 'cancel', onClose ); $modal.addEventListener( 'close', onClose ); } EJBMPHͷDMPTF͸   DBODFM͔DMPTFΠϕϯτͰ ݕ஌Ͱ͖Δ

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const onClose = ( event ) => { noScroll.off(); // ページ本体のスクロール抑止解除 const $modal = event.target; $modal.removeEventListener( 'cancel', onClose ); $modal.removeEventListener( 'close', onClose ); }

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w جຊ͚ͩͳΒ+4͸΄΅ෆཁ w +4ίʔυ͸ѹ౗తʹগͳ͍   ʢϒϥ΢β͕ɺ΄ͱΜͲ΍ͬͯ͘ΕΔʣ w ʮϒϥοΫϘοΫεʯ͕ͳ͍ w τοϓϨΠϠʔΛ࢖͍͍ͨͳΒ   EJBMPHҰ୒ ݁ہ+4͕ඞཁʁ

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͓࣋ͪؼΓ༻   ίʔυ

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https://github.com/codegrid/2022-09-16-cssnite-dialog

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https://www.codegrid.net/series/2022-modal-dialog

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·ͱΊ

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w γϯϓϧ࣮૷ͳΒɺ+4ϥΠϒϥϦෆཁ w ΧελϚΠζ͠΍͍͢ɺ੍ޚ͠΍͍͢ w ࠷લ໘͕อূ͞ΕΔ τοϓϨΠϠʔ w ϑΥʔΧεɺΩʔϘʔυૢ࡞ɺSPMF੍ޚ Ϟʔμϧઐ༻ͷཁૉͰ   ʮ͍͍͜ͱʯͨ͘͞Μ