-
Notifications
You must be signed in to change notification settings - Fork 95
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
10 changed files
with
280 additions
and
25 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,168 @@ | ||
| <template> | ||
| <picture class="lazy-img" style="min-height: 1rem" :data-alt="alt" | ||
| :style="style"> | ||
| <span v-if="isPreviewLoading" class="loading-indicator icon-loading"/> | ||
| <img | ||
| class="low-resolution blurred" | ||
| :class="{previewLoaded: !isPreviewLoading}" | ||
| :width="width ? width + 'px' : ''" | ||
| :height="height ? height + 'px' : ''" | ||
| /> | ||
| <img | ||
| class="full-resolution" | ||
| imageLoaded | ||
| :class="{imageLoaded: !isLoading}" | ||
| :width="width ? width + 'px' : ''" | ||
| :height="height ? height + 'px' : ''" | ||
| /> | ||
| </picture> | ||
| </template> | ||
|
|
||
| <script> | ||
| import lozad from 'lozad'; | ||
| export default { | ||
| name: "LazyPicture", | ||
| props: { | ||
| alt: { | ||
| type: String, | ||
| default: null | ||
| }, | ||
| blurredPreviewSrc: { | ||
| type: String, | ||
| default: null | ||
| }, | ||
| lazySrc: { | ||
| type: String, | ||
| default: null | ||
| }, | ||
| width: { | ||
| type: Number, | ||
| default: null | ||
| }, | ||
| height: { | ||
| type: Number, | ||
| default: null | ||
| }, | ||
| }, | ||
| data() { | ||
| return { | ||
| isPreviewLoading: { | ||
| type: Boolean, | ||
| default: true, | ||
| }, | ||
| isLoading: { | ||
| type: Boolean, | ||
| default: true, | ||
| }, | ||
| isBlurred: { | ||
| type: Boolean, | ||
| default: true, | ||
| }, | ||
| }; | ||
| }, | ||
| computed: { | ||
| style() { | ||
| const style = { } | ||
| if (this.width) { | ||
| style.width = `${this.width}px` | ||
| } | ||
| if (this.isLoading && this.height && !this.blurredPreviewSrc) { | ||
| style.height = 0 | ||
| style.paddingTop = `${this.height}px` | ||
| } | ||
| return style; | ||
| }, | ||
| }, | ||
| mounted() { | ||
| let $this = this | ||
| // init lozad | ||
| const observer = lozad(this.$el, { | ||
| enableAutoReload: true, | ||
| load: function(el) { | ||
| let loadingIndicator = el.querySelector('.loading-indicator') | ||
| let imgPlaceholder = el.querySelector('.low-resolution') | ||
| let img = el.querySelector('.full-resolution') | ||
| // callback for fully-loaded image event | ||
| const onThumbnailFullyLoaded = () => { | ||
| el.removeChild(imgPlaceholder) | ||
| $this.isLoading = false | ||
| } | ||
| // callback for preview-image-loaded event | ||
| const onThumbnailPreviewLoaded = () => { | ||
| img.addEventListener('load', onThumbnailFullyLoaded) | ||
| $this.$once('hook:destroyed', () => { | ||
| img.removeEventListener('load', onThumbnailFullyLoaded) | ||
| }) | ||
| img.src = $this.lazySrc | ||
| $this.isPreviewLoading = false | ||
| } | ||
| imgPlaceholder.addEventListener('load', onThumbnailPreviewLoaded) | ||
| $this.$once('hook:destroyed', () => { | ||
| imgPlaceholder.removeEventListener('load', onThumbnailPreviewLoaded) | ||
| }) | ||
| imgPlaceholder.src = $this.blurredPreviewSrc | ||
| } | ||
| }) | ||
| observer.observe() | ||
| }, | ||
| } | ||
| </script> | ||
|
|
||
|
|
||
| <style scoped> | ||
| .lazy-img { | ||
| max-width: 100%; | ||
| max-height: 100%; | ||
| vertical-align: middle; | ||
| overflow: hidden; | ||
| } | ||
| picture .loading-indicator { | ||
| align-content: center; | ||
| display: contents; | ||
| } | ||
| picture img.blurred { | ||
| filter: blur(.5rem); | ||
| -webkit-filter: blur(.5rem); | ||
| } | ||
| picture img.low-resolution.previewLoaded { | ||
| display: inline; | ||
| -webkit-animation: fadeIn 1s linear 0s; | ||
| animation: fadeIn 1s linear 0s; | ||
| } | ||
| picture img.full-resolution { | ||
| display: none; | ||
| } | ||
| picture img.full-resolution.imageLoaded { | ||
| display: inline; | ||
| -webkit-animation: unblur 1s linear 0s; | ||
| animation: unblur 1s linear 0s; | ||
| } | ||
| @keyframes fadeIn { | ||
| from { | ||
| opacity: 0; | ||
| } | ||
| to { | ||
| opacity: 1; | ||
| } | ||
| } | ||
| @keyframes unblur { | ||
| from { | ||
| filter: blur(.5rem); | ||
| } | ||
| to { | ||
| filter: blur(0rem); | ||
| } | ||
| } | ||
| </style> |
Oops, something went wrong.