uweb/zh/searchurl/txt/videoplay.js
2022-06-30 11:43:09 +08:00

733 lines
22 KiB
JavaScript

if(window.__videoplayer_enhancer__){
window.__videoplayer_enhancer__();
throw '';
}else{
window.__videoplayer_enhancer__ = function(){
/* lib begin */
function debounce(fn, ms = 0) {
let timeoutId;
return function(...args) {
clearTimeout(timeoutId);
timeoutId = setTimeout(() => fn.apply(this, args), ms);
};
};
function throttle(fn, wait) {
let inThrottle, lastFn, lastTime;
return function(...args) {
if (!inThrottle) {
fn.apply(this, args);
lastTime = Date.now();
inThrottle = true;
} else {
clearTimeout(lastFn);
lastFn = setTimeout(function() {
if (Date.now() - lastTime >= wait) {
fn.apply(this, args);
lastTime = Date.now();
}
}, Math.max(wait - (Date.now() - lastTime), 0));
}
};
};
function is_same_size_position(ele1, ele2) {
try {
return ele1.clientWidth == ele2.clientWidth &&
ele1.clientHeight == ele2.clientHeight &&
ele1.scrollHeight == ele2.scrollHeight;
} catch {
return false;
}
}
function find_top_wrap_ele(ele) {
let origE = ele;
let wrap = ele;
do {
ele = ele.parentElement;
if (is_same_size_position(wrap, ele)) {
wrap = ele;
}
}while (ele.tagName !== 'BODY');
if(wrap == origE) {
wrap = document.createElement('div');
origE.parentElement.insertBefore(wrap, origE);
wrap.append(origE);
}
return wrap;
}
function fullscreen2Element(ele) {
if (document.fullscreen) {
let curFS = document.fullscreenElement;
if(curFS.tagName === 'VIDEO') {
document.exitFullscreen();
}
}
}
function is_parent(ele, parent) {
while (ele.tagName !== 'BODY' &&
ele !== parent && ele.parentElement !== parent) {
ele = ele.parentElement;
}
return ele.parentElement === parent;
}
function zero_padding(number, length = 2) {
return Array(Math.max(length - number.toString().length, 0) + 1).join(0) + number;
}
function sec2HHMMSS(time, sec_base = 1) {
const sec = sec_base, min = 60 * sec, hour = 60 * min;
const h = Math.floor(time / hour);
const m = Math.floor(time % hour / min);
const s = Math.floor(time % min / sec);
let result = zero_padding(m) + ':' + zero_padding(s);
if (h) {
return zero_padding(h) + ':' + result;
} else {
return result;
}
}
function HHMMSS2sec(time, sec_base = 1) {
const sec = sec_base, min = 60 * sec, hour = 60 * min;
const split = time.split(':');
if (split.length < 3) {
split.unshift(0);
}
const h = split[0];
const m = split[1];
const s = split[2];
return h * hour + m * min + s * sec;
}
function get_1cm_pixel_num() {
const div = document.createElement('div');
div.style.cssText = ['position: fixed', 'width: 1cm', 'visibility: hidden'].join('; ');
document.body.append(div);
const pixel = div.clientWidth;
div.remove();
get_1cm_pixel_num = () => pixel;
return pixel;
}
function px2cm(px) {
return px / get_1cm_pixel_num();
}
/* lib end */
/* add custom event begin */
function copy(obj) {
const new_obj = {};
for (let i in obj) {
new_obj[i] = obj[i];
}
return new_obj;
}
function TapEvent(touch_event) {
return new TouchEvent('tap',
Object.assign(copy(touch_event),
{ bubbles: true, cancelable: true, composed: true }));
}
function DoubleTapEvent(touch_event) {
return new TouchEvent('doubletap',
Object.assign(copy(touch_event),
{ bubbles: true, cancelable: true, composed: true }));
}
function TouchEvent2MouseEvent(event_type, event) {
const touch = event.targetTouches && event.targetTouches[0] || {};
return new MouseEvent(event_type,
Object.assign({}, copy(event), copy(touch),
{ bubbles: true, cancelable: true, composed: true }));
}
function add_tap_event_hook(element) {
let start_touch, end_touch, end_event = {};
const start = e => {
start_touch = end_touch = copy(e.touches[0]);
end_event = copy(e);
};
const move = e => {
end_touch = copy(e.touches[0]);
end_event = copy(e);
};
const end = e => {
if (Math.abs(start_touch.clientX - end_touch.clientX) <= 10 &&
Math.abs(start_touch.clientY - end_touch.clientY) <= 10) {
e.target.dispatchEvent(new TapEvent(end_event));
e.preventDefault();
e.target.dispatchEvent(TouchEvent2MouseEvent('click', end_event));
}
};
element.addEventListener('touchstart', start, true);
element.addEventListener('touchmove', move, true);
element.addEventListener('touchend', end, true);
return function event_clearer() {
element.removeEventListener('touchstart', start, true);
element.removeEventListener('touchmove', move, true);
element.removeEventListener('touchend', end, true);
};
}
function add_doubletap_event_hook(element) {
let start_time = 0;
const doubletap_judge = e => {
if (Date.now() - start_time <= 250) {
start_time = 0;
e.target.dispatchEvent(new DoubleTapEvent(e));
} else {
start_time = Date.now();
}
};
element.addEventListener('tap', doubletap_judge, true);
return function event_clearer() {
element.removeEventListener('tap', doubletap_judge, true);
};
}
/* add custom event end */
function create_prompt_panel() {
const prompt_div = document.createElement('div');
const prompt_symbol_div = document.createElement('div');
const prompt_time_div = document.createElement('div');
const prompt_time_begin_span = document.createElement('span');
const prompt_time_end_span = document.createElement('span');
prompt_div.append(prompt_symbol_div, prompt_time_div);
prompt_time_div.append(prompt_time_begin_span, ' / ', prompt_time_end_span);
prompt_div.style.cssText = `
width: 10em;
position: absolute;
z-index: 99999999;
left: 50%;
top: 50%;
padding: 15px 0px;
margin: calc(-0.5em - 15px) auto auto -5em;
background-color: rgba(51, 51, 51, 0.8);
border-radius: 15px;
text-align: center;
font-size: 0.5cm;
color: white;
display: none;
`;
prompt_time_begin_span.style.color = '#2fb3ff';
return {
div: prompt_div,
symbol: prompt_symbol_div,
left_time: prompt_time_begin_span,
right_time: prompt_time_end_span,
};
}
function create_control_panel() {
const div = document.createElement('div');
const content_divs = Array(5).fill().map(() => document.createElement('div'));
div.append.apply(div, content_divs);
div.style.cssText = `
width: 50%;
height: 100%;
margin: 0;
padding: 0;
position: absolute;
z-index: 9999999999;
top: 0;
left: 30%;
background-color: rgba(51, 51, 51, 0.8);
color: white;
box-sizing: border-box;
display: none;
justify-content: center;
align-items: center;
font-size: 1cm;
pointer-events: auto;
`;
return {
display() {
div.style.display = 'flex';
},
hidden() {
div.style.display = 'none';
},
toggle() {
if (div.style.display === 'flex') {
this.hidden();
} else {
this.display();
}
},
div,
content_divs,
};
}
const get_video_touch_hook = (video, e) => {
let top_wrap = find_top_wrap_ele(video);
if (top_wrap === video) {
top_wrap = document.createElement('div');
video.parentElement.insertBefore(top_wrap, video);
top_wrap.append(video);
}
const event_clearer = [add_tap_event_hook, add_doubletap_event_hook].map(x => x(top_wrap));
const hook_fn = {
start: [],
move: [],
end: [],
};
let start_x, start_time;
const touch_start = e => {
start_x = e.touches[0].screenX;
start_time = video.currentTime;
hook_fn.start.forEach(fn => fn(e, start_time));
//window.playbackRate = video.playbackRate;
//video.playbackRate = 4.0;
};
if (e) {
setTimeout(touch_start, 0, e);
}
const touch_move = e => {
const end_x = e.touches[0].screenX;
const x_distance_px = end_x - start_x;
const time_length = px2cm(x_distance_px) * (this.sec_1cm || 1);
hook_fn.move.forEach(fn => fn(e, start_time, x_distance_px, time_length));
fullscreen2Element(top_wrap);
};
const touch_end = e => {
hook_fn.end.forEach(fn => fn(e));
/*
video.playbackRate = window.playbackRate;
const end_x = e.changedTouches[0].pageX;
if(!(end_x - start_x === 0 ))
fullscreen2Element(top_wrap);
*/
};
top_wrap.addEventListener('touchstart', touch_start, { passive: false });
top_wrap.addEventListener('touchmove', touch_move, { passive: false });
top_wrap.addEventListener('touchend', touch_end, { passive: false });
const remove_hook = () => {
top_wrap.removeEventListener('touchstart', touch_start);
top_wrap.removeEventListener('touchmove', touch_move);
top_wrap.removeEventListener('touchend', touch_end);
};
return { video, hook_fn, wrap: top_wrap, event_clearer: event_clearer.concat(remove_hook) };
};
const hook_video_move = hook => {
const {video, hook_fn} = hook;
hook_fn.start.push(() => {
paused = video.paused;
});
let playing;
const pause = () => {
if (!video.paused) {
video.pause();
playing = true;
}
};
const play = debounce(() => {
if (playing) {
video.play();
playing = false;
}
}, 100);
hook_fn.move.push((e, start_time, x_distance_px, time_length) => {
pause();
video.currentTime = Math.max(Math.min(start_time + time_length,
video.duration),
0);
play();
});
};
const hook_video_time_change = hook => {
const {video, hook_fn, event_clearer} = hook;
const top_wrap = find_top_wrap_ele(video);
const video_prompt = create_prompt_panel();
top_wrap.append(video_prompt.div);
event_clearer.push(() => video_prompt.div.remove());
hook_fn.start.push(() => {
video_prompt.right_time.innerText = sec2HHMMSS(video.duration);
});
hook_fn.move.push((e, start_time, x_distance_px, time_length) => {
video_prompt.div.style.display = 'block';
time_length = video.currentTime - start_time;
video_prompt.symbol.innerText = time_length < 0 ? '-' : '+';
video_prompt.symbol.innerText += sec2HHMMSS(Math.abs(time_length));
video_prompt.left_time.innerText = sec2HHMMSS(video.currentTime);
});
hook_fn.end.push(() => {
video_prompt.div.style.display = 'none';
});
};
const hook_video_control = hook => {
const {video, hook_fn, event_clearer} = hook;
const top_wrap = find_top_wrap_ele(video);
const wrap = document.createElement('div');
const paddle_div = document.createElement('div');
const speed_div = document.createElement('div');
const jump_div = document.createElement('div');
const skip_div = document.createElement('div');
const fullscreen_div = document.createElement('div');
const control = create_control_panel();
top_wrap.append(wrap);
const buttons = [paddle_div, speed_div, jump_div, skip_div, fullscreen_div];
wrap.append.apply(wrap, buttons);
wrap.append(control.div);
wrap.style.cssText = `
width: 100%;
height: 100%;
position: absolute;
top: 0px;
left: 0px;
pointer-events: none;
z-index: 9999999999;
display: none;
`;
const update_wrap_size = () => {
wrap.style.fontSize = `${Math.min(video.clientHeight, video.clientWidth) / buttons.length / 4}px`;
};
update_wrap_size();
buttons.forEach(div => div.style.cssText =
`
width: 3em;
height: 3em;
line-height: 3em;
text-align: center;
border: solid white;
border-radius: 100%;
color: white;
pointer-events: auto;
`);
paddle_div.style.pointerEvents = 'none';
paddle_div.style.visibility = 'hidden';
const skip_video = throttle(e => {
video.currentTime = video.duration;
}, 500);
const toggle_play_state = throttle(e => {
if (video.paused) {
video.play();
} else {
video.pause();
}
}, 500);
const toggle_fullscreen = throttle(e => {
if (document.fullscreen) {
document.exitFullscreen();
} else {
top_wrap.requestFullscreen();
}
}, 500);
const update_button = () => {
speed_div.innerText = video.playbackRate + 'x';
jump_div.innerText = sec2HHMMSS(video.currentTime);
};
const hidden_wrap = () => {
control.hidden();
wrap.style.display = 'none';
wrap.style.pointerEvents = 'none';
};
const hidden_wrap_delay = debounce(hidden_wrap, 3000);
const display_wrap = throttle((e) => {
update_wrap_size();
wrap.style.display = 'block';
update_button();
hidden_wrap_delay();
}, 1000);
const prevent_event = e => {
if (e.cancelable) {
e.preventDefault();
}
e.stopImmediatePropagation();
};
skip_div.innerText = 'skip';
fullscreen_div.innerText = 'FS';
skip_div.addEventListener('tap', skip_video);
fullscreen_div.addEventListener('tap', toggle_fullscreen);
wrap.addEventListener('touchend', prevent_event);
wrap.addEventListener('touchmove', e => {
prevent_event(e);
update_button();
hidden_wrap_delay();
});
top_wrap.addEventListener('tap', display_wrap);
top_wrap.addEventListener('doubletap', toggle_play_state);
event_clearer.push(() => {
top_wrap.removeEventListener('tap', display_wrap);
top_wrap.removeEventListener('doubletap', toggle_play_state);
wrap.remove();
});
function speed_activate() {
video.playbackRate = parseFloat(control.div.innerText.replace(/[\r\n]+/g, ''));
update_button();
hidden_wrap();
}
function jump_activate() {
video.currentTime = HHMMSS2sec(control.div.innerText.replace(/[\r\n]+/g, ''));
update_button();
hidden_wrap();
}
function clear_content() {
control.content_divs.forEach(div => div.innerHTML = '');
}
const set_content_tap_fn = (() => {
let bind_fn = [];
return fn => {
bind_fn.forEach(([div, fn]) => div.removeEventListener('tap', fn));
bind_fn = [];
control.content_divs.forEach(div => {
bind_fn.push([div, fn]);
div.addEventListener('tap', fn);
});
};
})();
let state = [];
function set_state() {
control.content_divs.forEach((div, i) => state[i] = div.innerText);
}
let start_y, modifier;
const start = e => {
start_y = e.touches[0].screenY;
set_state();
};
const move = e => {
const end_y = e.touches[0].screenY;
const y_distance_px = start_y - end_y;
const increase = Math.floor(px2cm(y_distance_px) * (this.increase_1cm || 1));
const idx = Array.from(e.target.parentElement.children).indexOf(e.target);
if (modifier[idx]) {
modifier[idx](increase);
}
};
const increase_helper = (state_idx, increase,
limit, pre_ele_modifier, wrap = x => x) => {
const v = parseFloat(state[state_idx]) + increase;
if (limit !== undefined) {
if (pre_ele_modifier) {
if (v >= limit) {
pre_ele_modifier(Math.floor(v / limit));
control.content_divs[state_idx].innerText = wrap(v % limit);
} else if (v < 0) {
pre_ele_modifier(-1);
control.content_divs[state_idx].innerText = wrap(limit + v);
} else {
control.content_divs[state_idx].innerText = wrap(v);
}
} else {
control.content_divs[state_idx].innerText =
wrap(Math.min(Math.max(v, 0), limit));
}
} else {
control.content_divs[state_idx].innerText = wrap(v);
}
};
const speed_modifier = [];
speed_modifier[0] = (increase) => {
increase_helper(0, increase);
};
speed_modifier[2] = (increase) => {
increase_helper(2, increase, 10, speed_modifier[0]);
};
speed_modifier[3] = (increase) => {
increase_helper(3, increase, 10, speed_modifier[2]);
};
const jump_modifier = [];
jump_modifier[0] = (increase) => {
increase_helper(0, increase, undefined, undefined, zero_padding);
};
jump_modifier[2] = (increase) => {
increase_helper(2, increase, 60, jump_modifier[0], zero_padding);
};
jump_modifier[4] = (increase) => {
increase_helper(4, increase, 60, jump_modifier[2], zero_padding);
};
speed_div.addEventListener('tap', throttle(e => {
e.stopImmediatePropagation();
clear_content();
if(window.playbackRate>=4.0) window.playbackRate=0.5;
else if(window.playbackRate<1.0) window.playbackRate=1.0;
else if(window.playbackRate<1.5) window.playbackRate=1.5;
else if(window.playbackRate>=2.0) window.playbackRate=4;
else window.playbackRate = 2.0;
const split = window.playbackRate.toString().split('.');
control.content_divs[0].innerText = split[0];
control.content_divs[1].innerText = '.';
control.content_divs[2].innerText = (split[1] || '00').split('')[0] || 0;
control.content_divs[3].innerText = (split[1] || '00').split('')[1] || 0;
control.content_divs[4].innerText = 'x';
modifier = speed_modifier;
set_content_tap_fn(speed_activate);
control.display();
wrap.style.pointerEvents = 'auto';
}, 500));
jump_div.addEventListener('tap', throttle(e => {
e.stopImmediatePropagation();
clear_content();
if(control.div.style.display === 'none'||!window.playbackPos)
window.playbackPos = video.currentTime;
window.playbackPos += 180;
const time = sec2HHMMSS(window.playbackPos);
const split = time.split(':');
if (split.length < 3) {
split.unshift('00');
}
control.content_divs[0].innerText = split[0];
control.content_divs[1].innerText = ':';
control.content_divs[2].innerText = split[1];
control.content_divs[3].innerText = ':';
control.content_divs[4].innerText = split[2];
modifier = jump_modifier;
set_content_tap_fn(jump_activate);
control.display();
wrap.style.pointerEvents = 'auto';
}, 500));
control.content_divs.forEach(div => {
div.addEventListener('touchstart', start, { passive: false });
div.addEventListener('touchmove', move, { passive: false });
});
};
function find_hook(video) {
window.__hook_video__ = window.__hook_video__ || [];
const exist_video = window.__hook_video__.find(v => v.video === video);
return exist_video;
}
function register_hook(hook) {
if (!find_hook(hook.video)) {
window.__hook_video__.push(hook);
return hook;
}
}
const hook_video = (video) => {
const exist_video = find_hook(video);
if (video.clientWidth && video.clientHeight &&
(!exist_video || is_parent(exist_video.wrap, find_top_wrap_ele(video)))) {
const hook = get_video_touch_hook(video);
hook_video_move(hook);
hook_video_time_change(hook);
hook_video_control(hook);
if (exist_video) {
exist_video.event_clearer.forEach(x => x());
Object.assign(exist_video, hook);
console.log('video-improve: reloaded for ', video, ', wrapped by ', find_top_wrap_ele(video));
} else {
register_hook(hook);
console.log('video-improve: loaded for ', video, ', wrapped by ', find_top_wrap_ele(video));
}
}
};
let videos;
if (document.fullscreen) {
videos = document.fullscreenElement.querySelectorAll('video');
}else {
function get_frames(window) {
const frames = [window];
for (let i = 0; i < window.frames.length; i++) {
try {
window.frames[i].document;
} catch {
continue;
}
frames.push(...get_frames(window.frames[i]))
}
return frames;
}
function flatten(array) {
if (!Array.isArray(array)) {
return [array];
} else if (array.length == 0) {
return [];
} else {
return flatten(array[0]).concat(flatten(array.slice(1)));
}
}
function get_videos() {
const frames = get_frames(window);
const frame_video = frame => Array.from(frame.document.querySelectorAll('video'));
const shadow = frame => Array.from(frame.document.querySelectorAll("shadow-output"));
const shadow_video = shadow => Array.from(shadow.shadowRoot.querySelectorAll("video"));
return flatten(frames.map(frame_video)
.concat(frames.map(f => shadow(f).map(shadow_video))));
}
videos = get_videos();
}
videos.forEach(hook_video);
};
}
window.__videoplayer_enhancer__();