Add new class L.VideoOverlay (#4988)
* Add VideoOverlay class based on ImageOverlay * Make linter happy * Move VideoOverlay include to layer/index * Fix mapbox tokenscarto
Iván Sánchez Ortega
8 years ago
committed by
Per Liedman
parent
79ab486dde
commit
61ff641951
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<!DOCTYPE html>
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<html>
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<head>
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<title>Leaflet debug page</title>
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<meta charset="utf-8" />
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<link rel="stylesheet" href="../../dist/leaflet.css" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<link rel="stylesheet" href="../css/screen.css" />
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<script type="text/javascript" src="../../build/deps.js"></script>
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<script src="../leaflet-include.js"></script>
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</head>
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<body>
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<div id="map" style='width:750px; height: 450px;'></div>
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<button id="populate">Populate with 10 markers</button>
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<script type="text/javascript">
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var map = L.map('map');
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L.tileLayer('https://api.tiles.mapbox.com/v4/{id}/{z}/{x}/{y}.png?access_token=pk.eyJ1IjoibWFwYm94IiwiYSI6ImNpejY4NXVycTA2emYycXBndHRqcmZ3N3gifQ.rJcFIG214AriISLbB6B5aw', {
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maxZoom: 18,
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attribution: 'Map data © <a href="http://openstreetmap.org">OpenStreetMap</a> contributors, ' +
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'<a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>, ' +
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'Imagery © <a href="http://mapbox.com">Mapbox</a>',
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id: 'mapbox.satellite'
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}).addTo(map);
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var videoUrls = [
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'https://www.mapbox.com/bites/00188/patricia_nasa.webm',
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'https://www.mapbox.com/bites/00188/patricia_nasa.mp4'
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],
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bounds = L.latLngBounds([[ 32, -130], [ 13, -100]]);
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map.fitBounds(bounds);
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var overlay = L.videoOverlay(videoUrls, bounds, {
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opacity: 0.8,
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interactive: true,
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autoplay: false
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});
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map.addLayer(overlay);
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overlay.on('dblclick',function (e) {
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console.log('Double click on image.');
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});
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overlay.on('load', function () {
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var MyPauseControl = L.Control.extend({
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onAdd: function() {
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var button = L.DomUtil.create('button');
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button.innerHTML = '⏸';
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L.DomEvent.on(button, 'click', function () {
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overlay.getElement().pause();
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});
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return button;
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}
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});
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var MyPlayControl = L.Control.extend({
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onAdd: function() {
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var button = L.DomUtil.create('button');
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button.innerHTML = '⏵';
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L.DomEvent.on(button, 'click', function () {
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overlay.getElement().play();
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});
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return button;
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}
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});
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var pauseControl = (new MyPauseControl()).addTo(map);
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var playControl = (new MyPlayControl()).addTo(map);
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});
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</script>
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</body>
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</html>
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---
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layout: tutorial_frame
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title: Video Overlay Tutorial
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---
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<script>
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var map = L.map('map');
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L.tileLayer('https://api.tiles.mapbox.com/v4/{id}/{z}/{x}/{y}.png?access_token=pk.eyJ1IjoibWFwYm94IiwiYSI6ImNpejY4NXVycTA2emYycXBndHRqcmZ3N3gifQ.rJcFIG214AriISLbB6B5aw', {
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maxZoom: 18,
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attribution: 'Map data © <a href="http://openstreetmap.org">OpenStreetMap</a> contributors, ' +
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'<a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>, ' +
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'Imagery © <a href="http://mapbox.com">Mapbox</a>',
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id: 'mapbox.satellite'
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}).addTo(map);
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bounds = L.latLngBounds([[ 32, -130], [ 13, -100]]);
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L.rectangle(bounds).addTo(map);
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map.fitBounds(bounds);
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</script>
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---
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layout: tutorial_frame
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title: Video Overlay Tutorial
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---
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<script>
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var map = L.map('map');
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L.tileLayer('https://api.tiles.mapbox.com/v4/{id}/{z}/{x}/{y}.png?access_token=pk.eyJ1IjoibWFwYm94IiwiYSI6ImNpejY4NXVycTA2emYycXBndHRqcmZ3N3gifQ.rJcFIG214AriISLbB6B5aw', {
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maxZoom: 18,
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attribution: 'Map data © <a href="http://openstreetmap.org">OpenStreetMap</a> contributors, ' +
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'<a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>, ' +
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'Imagery © <a href="http://mapbox.com">Mapbox</a>',
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id: 'mapbox.satellite'
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}).addTo(map);
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var videoUrls = [
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'https://www.mapbox.com/bites/00188/patricia_nasa.webm',
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'https://www.mapbox.com/bites/00188/patricia_nasa.mp4'
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],
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bounds = L.latLngBounds([[ 32, -130], [ 13, -100]]);
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map.fitBounds(bounds);
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var overlay = L.videoOverlay(videoUrls, bounds, {
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opacity: 0.8,
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interactive: true
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});
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map.addLayer(overlay);
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</script>
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---
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layout: tutorial_frame
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title: Video Overlay Tutorial
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---
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<script>
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var map = L.map('map');
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L.tileLayer('https://api.tiles.mapbox.com/v4/{id}/{z}/{x}/{y}.png?access_token=pk.eyJ1IjoibWFwYm94IiwiYSI6ImNpejY4NXVycTA2emYycXBndHRqcmZ3N3gifQ.rJcFIG214AriISLbB6B5aw', {
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maxZoom: 18,
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attribution: 'Map data © <a href="http://openstreetmap.org">OpenStreetMap</a> contributors, ' +
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'<a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>, ' +
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'Imagery © <a href="http://mapbox.com">Mapbox</a>',
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id: 'mapbox.satellite'
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}).addTo(map);
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var videoUrls = [
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'https://www.mapbox.com/bites/00188/patricia_nasa.webm',
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'https://www.mapbox.com/bites/00188/patricia_nasa.mp4'
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],
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bounds = L.latLngBounds([[ 32, -130], [ 13, -100]]);
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map.fitBounds(bounds);
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var overlay = L.videoOverlay(videoUrls, bounds, {
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opacity: 0.8,
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interactive: false,
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autoplay: false
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});
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map.addLayer(overlay);
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overlay.on('load', function () {
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var MyPauseControl = L.Control.extend({
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onAdd: function() {
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var button = L.DomUtil.create('button');
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button.innerHTML = '⏸';
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L.DomEvent.on(button, 'click', function () {
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overlay.getElement().pause();
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});
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return button;
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}
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});
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var MyPlayControl = L.Control.extend({
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onAdd: function() {
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var button = L.DomUtil.create('button');
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button.innerHTML = '⏵';
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L.DomEvent.on(button, 'click', function () {
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overlay.getElement().play();
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});
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return button;
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}
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});
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var pauseControl = (new MyPauseControl()).addTo(map);
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var playControl = (new MyPlayControl()).addTo(map);
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});
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</script>
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---
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layout: tutorial_v2
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title: Leaflet on Mobile
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---
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## Video on webpages
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Video used to be a hard task when building a webpage, until the [`<video>` HTML element](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video) was made available.
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Nowadays, we can use the following HTML code:
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<video width="500" controls>
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<source src="https://www.mapbox.com/bites/00188/patricia_nasa.webm" type="video/webm">
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<source src="https://www.mapbox.com/bites/00188/patricia_nasa.mp4" type="video/mp4">
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</video>
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To display this video:
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<video width="500" controls>
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<source src="https://www.mapbox.com/bites/00188/patricia_nasa.webm" type="video/webm">
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<source src="https://www.mapbox.com/bites/00188/patricia_nasa.mp4" type="video/mp4">
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</video>
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If a video can be shown in a webpage in this way, then Leaflet can display it inside a map. It is important that the videos are prepared in such a way that they will fit the map: The video should have a "north-up" orientation, and its proportions should fit the map. If not, it will look out of place.
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### Bounds of an image overlay
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First of all, create a Leaflet map and add a background `L.TileLayer` in the usual way:
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var map = L.map('map').setView([37.8, -96], 4);
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L.tileLayer('https://api.tiles.mapbox.com/v4/{id}/{z}/{x}/{y}.png?access_token=' + mapboxAccessToken, {
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id: 'mapbox.satellite',
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attribution: ...
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}).addTo(map);
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Then, we'll define the geographical bounds that the video will cover. This is an instance of [`L.LatLngBounds`](../../reference.html#latlngbounds), which is a rectangular shape:
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var bounds = L.latLngBounds([[ 32, -130], [ 13, -100]]);
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If you want to see the area covered by a `LatLngBounds`, use a [`L.Rectangle`]((../../reference.html#latlngbounds)):
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L.rectangle(bounds).addTo(map);
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map.fitBounds(bounds);
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{% include frame.html url="example-bounds.html" %}
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### Adding the video overlay
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Adding a video overlay works very similar to adding a image overlay. For just one image, [`L.ImageOverlay`s](../../reference.html#imageoverlay) is used like this:
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var overlay = L.imageOverlay( imageUrl, bounds, options );
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For a video overlay, just:
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* Use `L.videoOverlay` instead of `L.imageOverlay`
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* Instead of the image URL, specify one video URL *or* an array of video URLs
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```
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var videoUrls = [
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'https://www.mapbox.com/bites/00188/patricia_nasa.webm',
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'https://www.mapbox.com/bites/00188/patricia_nasa.mp4'
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];
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var bounds = L.latLngBounds([[ 32, -130], [ 13, -100]]);
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var videoOverlay = L.videoOverlay( videoUrls, bounds, {
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opacity: 0.8
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}).addTo(map);
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```
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And just like that, you'll get the video on your map:
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{% include frame.html url="example-nocontrols.html" %}
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Video overlays behave like any other Leaflet layer - you can add and remove them, let the user select from several videos using a [layers control](../layers-control/), etc.
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### A bit of control over the video
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If you read the API documentation, you'll notice that the `L.VideoOverlay` class does not have a `play()` or `pause()` method.
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For this, the `getElement()` method of the video overlay is useful. It returns the [`HTMLVideoElement`](https://developer.mozilla.org/docs/Web/API/HTMLImageElement) (which inherits from [`HTMLMediaElement`](https://developer.mozilla.org/docs/Web/API/HTMLMediaElement)) for the overlay - and that has methods like `play()` and `pause()`, e.g.
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```
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videoOverlay.getElement().pause();
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```
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This allows us to build custom interfaces. For example, we can build a small subclass of `L.Control` to play/pause this video overlay once it's loaded:
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```
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videoOverlay.on('load', function () {
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var MyPauseControl = L.Control.extend({
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onAdd: function() {
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var button = L.DomUtil.create('button');
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button.innerHTML = '⏸';
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L.DomEvent.on(button, 'click', function () {
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videoOverlay.getElement().pause();
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});
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return button;
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}
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});
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var MyPlayControl = L.Control.extend({
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onAdd: function() {
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var button = L.DomUtil.create('button');
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button.innerHTML = '⏵';
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L.DomEvent.on(button, 'click', function () {
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videoOverlay.getElement().play();
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});
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return button;
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}
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});
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var pauseControl = (new MyPauseControl()).addTo(map);
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var playControl = (new MyPlayControl()).addTo(map);
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});
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```
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{% include frame.html url="example.html" %}
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After Width: | Height: | Size: 381 KiB |
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import {ImageOverlay} from './ImageOverlay';
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/*
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* @class VideoOverlay
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* @aka L.VideoOverlay
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* @inherits ImageOverlay
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*
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* Used to load and display a video player over specific bounds of the map. Extends `ImageOverlay`.
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*
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* A video overlay uses the [`<video>`](https://developer.mozilla.org/docs/Web/HTML/Element/video)
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* HTML5 element.
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*
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* @example
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*
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* ```js
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* var videoUrl = 'https://www.mapbox.com/bites/00188/patricia_nasa.webm',
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* imageBounds = [[ 32, -130], [ 13, -100]];
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* L.imageOverlay(imageUrl, imageBounds).addTo(map);
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* ```
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*/
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export var VideoOverlay = ImageOverlay.extend({
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// @section
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// @aka VideoOverlay options
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options: {
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// @option autoplay: Boolean = true
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// Whether the video starts playing automatically when loaded.
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autoplay: true,
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// @option loop: Boolean = true
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// Whether the video will loop back to the beginning when played.
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loop: true
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},
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_initImage: function () {
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var vid = this._image = L.DomUtil.create('video',
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'leaflet-image-layer ' + (this._zoomAnimated ? 'leaflet-zoom-animated' : ''));
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vid.onselectstart = L.Util.falseFn;
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vid.onmousemove = L.Util.falseFn;
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// @event load: Event
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// Fired when the video has finished loading the first frame
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vid.onloadeddata = L.bind(this.fire, this, 'load');
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||||||
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if (!L.Util.isArray(this._url)) { this._url = [this._url]; }
|
||||||
|
|
||||||
|
vid.autoplay = !!this.options.autoplay;
|
||||||
|
vid.loop = !!this.options.loop;
|
||||||
|
for (var i = 0; i < this._url.length; i++) {
|
||||||
|
var source = L.DomUtil.create('source');
|
||||||
|
source.src = this._url[i];
|
||||||
|
vid.appendChild(source);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// @method getElement(): HTMLVideoElement
|
||||||
|
// Returns the instance of [`HTMLVideoElement`](https://developer.mozilla.org/docs/Web/API/HTMLVideoElement)
|
||||||
|
// used by this overlay.
|
||||||
|
});
|
||||||
|
|
||||||
|
|
||||||
|
// @factory L.videoOverlay(videoUrl: String|Array, bounds: LatLngBounds, options?: VideoOverlay options)
|
||||||
|
// Instantiates an image overlay object given the URL of the video (or array of URLs) and the
|
||||||
|
// geographical bounds it is tied to.
|
||||||
|
export function videoOverlay(url, bounds, options) {
|
||||||
|
return new L.VideoOverlay(url, bounds, options);
|
||||||
|
}
|
||||||
Loading…
Reference in new issue