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media-control.js
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media-control.js
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(function () {
let _tabId = -1; // 选择的页面ID
let _index = -1; //选择的视频索引
let VideoTagTimer; // 获取所有视频标签的定时器
let VideoStateTimer; // 获取所有视频信息的定时器
let compareTab = [];
let compareVideo = [];
function setVideoTagTimer() {
clearInterval(VideoTagTimer);
VideoTagTimer = setInterval(getVideoTag, 1000);
}
function getVideoTag() {
chrome.tabs.query({ windowType: "normal" }, function (tabs) {
let videoTabList = [];
for (let tab of tabs) {
videoTabList.push(tab.id);
}
if (compareTab.toString() == videoTabList.toString()) {
return;
}
compareTab = videoTabList;
// 列出所有标签
for (let tab of tabs) {
if ($("#option" + tab.id).length == 1) { continue; }
$("#videoTabIndex").append(`<option value='${tab.id}' id="option${tab.id}">${stringModify(tab.title)}</option>`);
}
// 删除没有媒体的标签. 异步的原因，使用一个for去处理无法保证标签顺序一致
for (let tab of videoTabList) {
chrome.tabs.sendMessage(tab, { Message: "getVideoState", index: 0 }, { frameId: 0 }, function (state) {
if (chrome.runtime.lastError || state.count == 0) {
$("#option" + tab).remove();
return;
}
$("#videoTabTips").remove();
if (tab == G.tabId && _tabId == -1) {
_tabId = tab;
$("#videoTabIndex").val(tab);
}
});
}
});
}
function setVideoStateTimer() {
clearInterval(VideoStateTimer);
VideoStateTimer = setInterval(getVideoState, 500);
}
function getVideoState(setSpeed = false) {
if (_tabId == -1) {
let currentTabId = $("#videoTabIndex").val();
if (currentTabId == -1) { return; }
_tabId = parseInt(currentTabId);
}
chrome.tabs.sendMessage(_tabId, { Message: "getVideoState", index: _index }, { frameId: 0 }, function (state) {
if (chrome.runtime.lastError || state.count == 0) { return; }
if (state.type == "audio") {
$("#pip").hide();
$("#screenshot").hide();
}
$("#volume").val(state.volume);
if (state.duration && state.duration != Infinity) {
$("#timeShow").html(secToTime(state.currentTime) + " / " + secToTime(state.duration));
$("#time").val(state.time);
}
state.paused ? $("#control").html(i18n.play).data("switch", "play") : $("#control").html(i18n.pause).data("switch", "pause");
state.speed == 1 ? $("#speed").html(i18n.speedPlayback).data("switch", "speed") : $("#speed").html(i18n.normalPlay).data("switch", "normal");
$("#loop").prop("checked", state.loop);
$("#muted").prop("checked", state.muted);
if (setSpeed && state.speed != 1) {
$("#playbackRate").val(state.speed);
}
if (compareVideo.toString() != state.src.toString()) {
compareVideo = state.src;
$("#videoIndex").empty();
for (let i = 0; i < state.count; i++) {
let src = state.src[i].split("/").pop();
if (src.length >= 60) {
src = src.substr(0, 35) + '...' + src.substr(-35);
}
$("#videoIndex").append(`<option value='${i}'>${src}</option>`);
}
}
_index = _index == -1 ? 0 : _index;
$("#videoIndex").val(_index);
});
}
// 点击其他设置标签页 开始读取tab信息以及视频信息
getVideoTag();
$("#otherTab").click(function () {
chrome.tabs.get(G.mediaControl.tabid, function (tab) {
if (chrome.runtime.lastError) {
_tabId = -1;
_index = -1;
setVideoTagTimer(); getVideoState(); setVideoStateTimer();
return;
}
chrome.tabs.sendMessage(G.mediaControl.tabid, { Message: "getVideoState", index: 0 }, function (state) {
_tabId = G.mediaControl.tabid;
if (state.count > G.mediaControl.index) {
_index = G.mediaControl.index;
}
$("#videoTabIndex").val(_tabId);
setVideoTagTimer(); getVideoState(true); setVideoStateTimer();
(chrome.storage.session ?? chrome.storage.local).set({ mediaControl: { tabid: _tabId, index: _index } });
});
});
// setVideoTagTimer(); getVideoState(); setVideoStateTimer();
});
// 切换标签选择 切换视频选择
$("#videoIndex, #videoTabIndex").change(function () {
if (!G.isFirefox) { $("#pip").show(); }
$("#screenshot").show();
if (this.id == "videoTabIndex") {
_tabId = parseInt($("#videoTabIndex").val());
} else {
_index = parseInt($("#videoIndex").val());
}
(chrome.storage.session ?? chrome.storage.local).set({ mediaControl: { tabid: _tabId, index: _index } });
getVideoState(true);
});
let wheelPlaybackRateTimeout;
$("#playbackRate").on("wheel", function (event) {
$(this).blur();
let speed = parseFloat($(this).val());
speed = event.originalEvent.wheelDelta < 0 ? speed - 0.1 : speed + 0.1;
speed = parseFloat(speed.toFixed(1));
if (speed < 0.1 || speed > 16) { return false; }
$(this).val(speed);
clearTimeout(wheelPlaybackRateTimeout);
wheelPlaybackRateTimeout = setTimeout(() => {
chrome.storage.sync.set({ playbackRate: speed });
chrome.tabs.sendMessage(_tabId, { Message: "speed", speed: speed, index: _index });
}, 200);
return false;
});
// 倍速播放
$("#speed").click(function () {
if (_index < 0 || _tabId < 0) { return; }
if ($(this).data("switch") == "speed") {
const speed = parseFloat($("#playbackRate").val());
chrome.tabs.sendMessage(_tabId, { Message: "speed", speed: speed, index: _index });
chrome.storage.sync.set({ playbackRate: speed });
return;
}
chrome.tabs.sendMessage(_tabId, { Message: "speed", speed: 1, index: _index });
});
// 画中画
$("#pip").click(function () {
if (_index < 0 || _tabId < 0) { return; }
chrome.tabs.sendMessage(_tabId, { Message: "pip", index: _index }, function (state) {
if (chrome.runtime.lastError) { return; }
state.state ? $("#pip").html(i18n.exit) : $("#pip").html(i18n.pictureInPicture);
});
});
// 全屏
$("#fullScreen").click(function () {
if (_index < 0 || _tabId < 0) { return; }
chrome.tabs.get(_tabId, function (tab) {
chrome.tabs.highlight({ 'tabs': tab.index }, function () {
chrome.tabs.sendMessage(_tabId, { Message: "fullScreen", index: _index }, function (state) {
close();
});
});
});
});
// 暂停 播放
$("#control").click(function () {
if (_index < 0 || _tabId < 0) { return; }
const action = $(this).data("switch");
chrome.tabs.sendMessage(_tabId, { Message: action, index: _index });
});
// 循环 静音
$("#loop, #muted").click(function () {
if (_index < 0 || _tabId < 0) { return; }
const action = $(this).prop("checked");
chrome.tabs.sendMessage(_tabId, { Message: this.id, action: action, index: _index });
});
// 调节音量和视频进度时 停止循环任务
$("#volume, #time").mousedown(function () {
if (_index < 0 || _tabId < 0) { return; }
clearInterval(VideoStateTimer);
});
// 调节音量
$("#volume").mouseup(function () {
if (_index < 0 || _tabId < 0) { return; }
chrome.tabs.sendMessage(_tabId, { Message: "setVolume", volume: $(this).val(), index: _index }, function () {
if (chrome.runtime.lastError) { return; }
setVideoStateTimer();
});
});
// 调节视频进度
$("#time").mouseup(function () {
if (_index < 0 || _tabId < 0) { return; }
chrome.tabs.sendMessage(_tabId, { Message: "setTime", time: $(this).val(), index: _index }, function () {
if (chrome.runtime.lastError) { return; }
setVideoStateTimer();
});
});
// 视频截图
$("#screenshot").click(function () {
if (_index < 0 || _tabId < 0) { return; }
chrome.tabs.sendMessage(_tabId, { Message: "screenshot", index: _index });
});
})();