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feat(UI): Add save video frame button (#6926)
Thank you @tykus160 for your Polish translation!
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,196 @@ | ||
| /*! @license | ||
| * Shaka Player | ||
| * Copyright 2016 Google LLC | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
|
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| goog.provide('shaka.ui.SaveVideoFrameButton'); | ||
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| goog.require('shaka.ads.Utils'); | ||
| goog.require('shaka.ui.ContextMenu'); | ||
| goog.require('shaka.ui.Controls'); | ||
| goog.require('shaka.ui.Element'); | ||
| goog.require('shaka.ui.Enums'); | ||
| goog.require('shaka.ui.Locales'); | ||
| goog.require('shaka.ui.Localization'); | ||
| goog.require('shaka.ui.OverflowMenu'); | ||
| goog.require('shaka.ui.Utils'); | ||
| goog.require('shaka.util.Dom'); | ||
|
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||
|
|
||
| /** | ||
| * @extends {shaka.ui.Element} | ||
| * @final | ||
| * @export | ||
| */ | ||
| shaka.ui.SaveVideoFrameButton = class extends shaka.ui.Element { | ||
| /** | ||
| * @param {!HTMLElement} parent | ||
| * @param {!shaka.ui.Controls} controls | ||
| */ | ||
| constructor(parent, controls) { | ||
| super(parent, controls); | ||
|
|
||
| const LocIds = shaka.ui.Locales.Ids; | ||
| /** @private {!HTMLButtonElement} */ | ||
| this.button_ = shaka.util.Dom.createButton(); | ||
| this.button_.classList.add('shaka-save.video-frame-button'); | ||
| this.button_.classList.add('shaka-tooltip'); | ||
|
|
||
| /** @private {!HTMLElement} */ | ||
| this.icon_ = shaka.util.Dom.createHTMLElement('i'); | ||
| this.icon_.classList.add('material-icons-round'); | ||
| this.icon_.textContent = shaka.ui.Enums.MaterialDesignIcons.DOWNLOAD; | ||
| this.button_.appendChild(this.icon_); | ||
|
|
||
| const label = shaka.util.Dom.createHTMLElement('label'); | ||
| label.classList.add('shaka-overflow-button-label'); | ||
| label.classList.add('shaka-overflow-menu-only'); | ||
| this.nameSpan_ = shaka.util.Dom.createHTMLElement('span'); | ||
| this.nameSpan_.textContent = | ||
| this.localization.resolve(LocIds.DOWNLOAD_VIDEO_FRAME); | ||
| label.appendChild(this.nameSpan_); | ||
|
|
||
| /** @private {!HTMLElement} */ | ||
| this.currentState_ = shaka.util.Dom.createHTMLElement('span'); | ||
| this.currentState_.classList.add('shaka-current-selection-span'); | ||
| label.appendChild(this.currentState_); | ||
|
|
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| this.button_.appendChild(label); | ||
|
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| this.updateLocalizedStrings_(); | ||
|
|
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| this.parent.appendChild(this.button_); | ||
|
|
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| this.eventManager.listen( | ||
| this.localization, shaka.ui.Localization.LOCALE_UPDATED, () => { | ||
| this.updateLocalizedStrings_(); | ||
| }); | ||
|
|
||
| this.eventManager.listen( | ||
| this.localization, shaka.ui.Localization.LOCALE_CHANGED, () => { | ||
| this.updateLocalizedStrings_(); | ||
| }); | ||
|
|
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| this.eventManager.listen(this.button_, 'click', () => { | ||
| this.onClick_(); | ||
| }); | ||
|
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| const vr = this.controls.getVR(); | ||
| this.eventManager.listen(vr, 'vrstatuschanged', () => { | ||
| this.checkAvailability_(); | ||
| }); | ||
|
|
||
| this.eventManager.listen( | ||
| this.adManager, shaka.ads.Utils.AD_STARTED, () => { | ||
| this.checkAvailability_(); | ||
| }); | ||
|
|
||
| this.eventManager.listen( | ||
| this.adManager, shaka.ads.Utils.AD_STOPPED, () => { | ||
| this.checkAvailability_(); | ||
| }); | ||
|
|
||
| this.eventManager.listen(this.player, 'unloading', () => { | ||
| this.checkAvailability_(); | ||
| }); | ||
|
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| this.eventManager.listen(this.player, 'loaded', () => { | ||
| this.checkAvailability_(); | ||
| }); | ||
|
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| this.eventManager.listen(this.player, 'loaded', () => { | ||
| this.checkAvailability_(); | ||
| }); | ||
|
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| this.eventManager.listen(this.video, 'play', () => { | ||
| this.checkAvailability_(); | ||
| }); | ||
|
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| this.eventManager.listen(this.video, 'pause', () => { | ||
| this.checkAvailability_(); | ||
| }); | ||
|
|
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| this.eventManager.listen(this.video, 'seeking', () => { | ||
| this.checkAvailability_(); | ||
| }); | ||
|
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| this.checkAvailability_(); | ||
| } | ||
|
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||
|
|
||
| /** @private */ | ||
| onClick_() { | ||
| const canvas = /** @type {!HTMLCanvasElement}*/ ( | ||
| document.createElement('canvas')); | ||
| const context = /** @type {CanvasRenderingContext2D} */ ( | ||
| canvas.getContext('2d')); | ||
|
|
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| const video = /** @type {!HTMLVideoElement} */ ( | ||
| this.controls.getLocalVideo()); | ||
|
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| canvas.width = video.videoWidth; | ||
| canvas.height = video.videoHeight; | ||
| context.drawImage(video, 0, 0, canvas.width, canvas.height); | ||
|
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| const dataURL = canvas.toDataURL('image/png'); | ||
|
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| const downloadLink = /** @type {!HTMLAnchorElement}*/ ( | ||
| document.createElement('a')); | ||
| downloadLink.href = dataURL; | ||
| downloadLink.download = | ||
| 'videoframe_' + video.currentTime.toFixed(3) + '.png'; | ||
| downloadLink.click(); | ||
| } | ||
|
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||
|
|
||
| /** | ||
| * @private | ||
| */ | ||
| checkAvailability_() { | ||
| let available = true; | ||
| if (this.controls.isPlayingVR()) { | ||
| available = false; | ||
| } | ||
| if (this.player.drmInfo() || this.player.isAudioOnly()) { | ||
| available = false; | ||
| } | ||
| if (this.ad) { | ||
| available = false; | ||
| } | ||
| shaka.ui.Utils.setDisplay(this.button_, available); | ||
| } | ||
|
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||
|
|
||
| /** | ||
| * @private | ||
| */ | ||
| updateLocalizedStrings_() { | ||
| const LocIds = shaka.ui.Locales.Ids; | ||
|
|
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| this.button_.ariaLabel = | ||
| this.localization.resolve(LocIds.DOWNLOAD_VIDEO_FRAME); | ||
| this.nameSpan_.textContent = | ||
| this.localization.resolve(LocIds.DOWNLOAD_VIDEO_FRAME); | ||
| } | ||
| }; | ||
|
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|
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| /** | ||
| * @implements {shaka.extern.IUIElement.Factory} | ||
| * @final | ||
| */ | ||
| shaka.ui.SaveVideoFrameButton.Factory = class { | ||
| /** @override */ | ||
| create(rootElement, controls) { | ||
| return new shaka.ui.SaveVideoFrameButton(rootElement, controls); | ||
| } | ||
| }; | ||
|
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|
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| shaka.ui.OverflowMenu.registerElement( | ||
| 'save_video_frame', new shaka.ui.SaveVideoFrameButton.Factory()); | ||
|
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| shaka.ui.ContextMenu.registerElement( | ||
| 'save_video_frame', new shaka.ui.SaveVideoFrameButton.Factory()); |
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