2018-07-10 11:57:11 +00:00
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<template>
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2018-07-10 14:44:50 +00:00
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<div
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v-if="link.shown && link.canDisplay"
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2018-07-12 08:26:12 +00:00
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ref="container"
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2018-07-10 14:44:50 +00:00
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class="preview">
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2018-07-12 08:26:12 +00:00
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<div
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ref="content"
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:class="['toggle-content', 'toggle-type-' + link.type, { opened: isContentShown }]">
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2018-07-10 11:57:11 +00:00
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<template v-if="link.type === 'link'">
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2018-07-10 12:04:25 +00:00
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<a
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v-if="link.thumb"
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:href="link.link"
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class="toggle-thumbnail"
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target="_blank"
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rel="noopener">
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<img
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:src="link.thumb"
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decoding="async"
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alt=""
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2018-07-10 14:44:50 +00:00
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class="thumb"
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@load="onPreviewReady">
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2018-07-10 11:57:11 +00:00
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</a>
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<div class="toggle-text">
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<div class="head">
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<div class="overflowable">
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2018-07-10 12:04:25 +00:00
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<a
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:href="link.link"
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:title="link.head"
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target="_blank"
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rel="noopener">{{ link.head }}</a>
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2018-07-10 11:57:11 +00:00
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</div>
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2018-07-10 12:04:25 +00:00
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<button
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2018-07-12 08:26:12 +00:00
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v-if="showMoreButton"
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:aria-expanded="isContentShown"
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:aria-label="moreButtonLabel"
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2018-07-10 12:04:25 +00:00
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class="more"
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2018-07-12 08:26:12 +00:00
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@click="onMoreClick"
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><span class="more-caret"/></button>
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2018-07-10 11:57:11 +00:00
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</div>
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<div class="body overflowable">
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2018-07-10 12:04:25 +00:00
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<a
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:href="link.link"
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:title="link.body"
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target="_blank"
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rel="noopener">{{ link.body }}</a>
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2018-07-10 11:57:11 +00:00
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</div>
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</div>
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</template>
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<template v-else-if="link.type === 'image'">
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2018-07-10 12:04:25 +00:00
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<a
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:href="link.link"
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class="toggle-thumbnail"
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target="_blank"
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rel="noopener">
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<img
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:src="link.thumb"
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decoding="async"
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2018-07-10 14:44:50 +00:00
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alt=""
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@load="onPreviewReady">
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2018-07-10 11:57:11 +00:00
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</a>
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</template>
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<template v-else-if="link.type === 'video'">
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2018-07-10 12:04:25 +00:00
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<video
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preload="metadata"
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2018-07-10 14:44:50 +00:00
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controls
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@canplay="onPreviewReady">
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2018-07-10 12:04:25 +00:00
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<source
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:src="link.media"
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:type="link.mediaType">
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2018-07-10 11:57:11 +00:00
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</video>
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</template>
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<template v-else-if="link.type === 'audio'">
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2018-07-10 12:04:25 +00:00
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<audio
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controls
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2018-07-10 14:44:50 +00:00
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preload="metadata"
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@canplay="onPreviewReady">
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2018-07-10 12:04:25 +00:00
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<source
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:src="link.media"
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:type="link.mediaType">
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2018-07-10 11:57:11 +00:00
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</audio>
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</template>
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<template v-else-if="link.type === 'error'">
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<em v-if="link.error === 'image-too-big'">
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2018-07-10 12:04:25 +00:00
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This image is larger than {{ link.maxSize | friendlysize }} and cannot be
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2018-07-10 11:57:11 +00:00
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previewed.
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2018-07-10 12:04:25 +00:00
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<a
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:href="link.link"
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target="_blank"
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rel="noopener">Click here</a>
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2018-07-10 11:57:11 +00:00
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to open it in a new window.
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</em>
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<template v-else-if="link.error === 'message'">
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<div>
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<em>
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A preview could not be loaded.
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2018-07-10 12:04:25 +00:00
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<a
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:href="link.link"
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target="_blank"
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rel="noopener">Click here</a>
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2018-07-10 11:57:11 +00:00
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to open it in a new window.
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</em>
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<br>
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2018-07-10 12:04:25 +00:00
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<pre class="prefetch-error">{{ link.message }}</pre>
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2018-07-10 11:57:11 +00:00
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</div>
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2018-07-10 12:04:25 +00:00
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<button
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2018-07-12 08:26:12 +00:00
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:aria-expanded="isContentShown"
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:aria-label="moreButtonLabel"
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2018-07-10 12:04:25 +00:00
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class="more"
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2018-07-12 08:26:12 +00:00
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@click="onMoreClick"
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2018-07-10 11:57:11 +00:00
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><span class="more-caret"/></button>
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</template>
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</template>
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</div>
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</div>
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</template>
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<script>
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export default {
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name: "LinkPreview",
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props: {
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link: Object,
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},
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2018-07-12 08:26:12 +00:00
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data() {
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return {
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showMoreButton: false,
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isContentShown: false,
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};
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},
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computed: {
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moreButtonLabel() {
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return this.isContentShown ? "Less" : "More";
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},
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},
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2018-07-10 14:44:50 +00:00
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mounted() {
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2018-07-11 11:33:06 +00:00
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const options = require("../js/options");
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this.$set(this.link, "canDisplay", this.link.type !== "loading" && options.shouldOpenMessagePreview(this.link.type));
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2018-07-12 08:26:12 +00:00
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2018-07-12 11:14:15 +00:00
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// parent 1 - message - parent 2 - messagelist
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this.$parent.$parent.$emit("keepScrollPosition");
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2018-07-12 08:26:12 +00:00
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if (this.link.type !== "link") {
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return;
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}
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this.$nextTick(() => {
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if (!this.$refs.content) {
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return;
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}
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this.showMoreButton = this.$refs.content.offsetWidth >= this.$refs.container.offsetWidth;
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});
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2018-07-10 14:44:50 +00:00
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},
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methods: {
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onPreviewReady() {
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2018-07-12 11:14:15 +00:00
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// TODO: Instead of forcing scroll position, wait for image to load before showing it
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this.$parent.$parent.$emit("keepScrollPosition");
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2018-07-10 14:44:50 +00:00
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},
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2018-07-12 08:26:12 +00:00
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onMoreClick() {
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this.isContentShown = !this.isContentShown;
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},
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2018-07-10 14:44:50 +00:00
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},
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2018-07-10 11:57:11 +00:00
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};
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</script>
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