537 lines
17 KiB
JavaScript
537 lines
17 KiB
JavaScript
/*************************************************************************/
|
|
/* library_godot_input.js */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
/* a copy of this software and associated documentation files (the */
|
|
/* "Software"), to deal in the Software without restriction, including */
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/*************************************************************************/
|
|
|
|
/*
|
|
* Gamepad API helper.
|
|
*/
|
|
const GodotInputGamepads = {
|
|
$GodotInputGamepads__deps: ['$GodotRuntime', '$GodotEventListeners'],
|
|
$GodotInputGamepads: {
|
|
samples: [],
|
|
|
|
get_pads: function () {
|
|
try {
|
|
// Will throw in iframe when permission is denied.
|
|
// Will throw/warn in the future for insecure contexts.
|
|
// See https://github.com/w3c/gamepad/pull/120
|
|
const pads = navigator.getGamepads();
|
|
if (pads) {
|
|
return pads;
|
|
}
|
|
return [];
|
|
} catch (e) {
|
|
return [];
|
|
}
|
|
},
|
|
|
|
get_samples: function () {
|
|
return GodotInputGamepads.samples;
|
|
},
|
|
|
|
get_sample: function (index) {
|
|
const samples = GodotInputGamepads.samples;
|
|
return index < samples.length ? samples[index] : null;
|
|
},
|
|
|
|
sample: function () {
|
|
const pads = GodotInputGamepads.get_pads();
|
|
const samples = [];
|
|
for (let i = 0; i < pads.length; i++) {
|
|
const pad = pads[i];
|
|
if (!pad) {
|
|
samples.push(null);
|
|
continue;
|
|
}
|
|
const s = {
|
|
standard: pad.mapping === 'standard',
|
|
buttons: [],
|
|
axes: [],
|
|
connected: pad.connected,
|
|
};
|
|
for (let b = 0; b < pad.buttons.length; b++) {
|
|
s.buttons.push(pad.buttons[b].value);
|
|
}
|
|
for (let a = 0; a < pad.axes.length; a++) {
|
|
s.axes.push(pad.axes[a]);
|
|
}
|
|
samples.push(s);
|
|
}
|
|
GodotInputGamepads.samples = samples;
|
|
},
|
|
|
|
init: function (onchange) {
|
|
GodotEventListeners.samples = [];
|
|
function add(pad) {
|
|
const guid = GodotInputGamepads.get_guid(pad);
|
|
const c_id = GodotRuntime.allocString(pad.id);
|
|
const c_guid = GodotRuntime.allocString(guid);
|
|
onchange(pad.index, 1, c_id, c_guid);
|
|
GodotRuntime.free(c_id);
|
|
GodotRuntime.free(c_guid);
|
|
}
|
|
const pads = GodotInputGamepads.get_pads();
|
|
for (let i = 0; i < pads.length; i++) {
|
|
// Might be reserved space.
|
|
if (pads[i]) {
|
|
add(pads[i]);
|
|
}
|
|
}
|
|
GodotEventListeners.add(window, 'gamepadconnected', function (evt) {
|
|
if (evt.gamepad) {
|
|
add(evt.gamepad);
|
|
}
|
|
}, false);
|
|
GodotEventListeners.add(window, 'gamepaddisconnected', function (evt) {
|
|
if (evt.gamepad) {
|
|
onchange(evt.gamepad.index, 0);
|
|
}
|
|
}, false);
|
|
},
|
|
|
|
get_guid: function (pad) {
|
|
if (pad.mapping) {
|
|
return pad.mapping;
|
|
}
|
|
const ua = navigator.userAgent;
|
|
let os = 'Unknown';
|
|
if (ua.indexOf('Android') >= 0) {
|
|
os = 'Android';
|
|
} else if (ua.indexOf('Linux') >= 0) {
|
|
os = 'Linux';
|
|
} else if (ua.indexOf('iPhone') >= 0) {
|
|
os = 'iOS';
|
|
} else if (ua.indexOf('Macintosh') >= 0) {
|
|
// Updated iPads will fall into this category.
|
|
os = 'MacOSX';
|
|
} else if (ua.indexOf('Windows') >= 0) {
|
|
os = 'Windows';
|
|
}
|
|
|
|
const id = pad.id;
|
|
// Chrom* style: NAME (Vendor: xxxx Product: xxxx)
|
|
const exp1 = /vendor: ([0-9a-f]{4}) product: ([0-9a-f]{4})/i;
|
|
// Firefox/Safari style (safari may remove leading zeores)
|
|
const exp2 = /^([0-9a-f]+)-([0-9a-f]+)-/i;
|
|
let vendor = '';
|
|
let product = '';
|
|
if (exp1.test(id)) {
|
|
const match = exp1.exec(id);
|
|
vendor = match[1].padStart(4, '0');
|
|
product = match[2].padStart(4, '0');
|
|
} else if (exp2.test(id)) {
|
|
const match = exp2.exec(id);
|
|
vendor = match[1].padStart(4, '0');
|
|
product = match[2].padStart(4, '0');
|
|
}
|
|
if (!vendor || !product) {
|
|
return `${os}Unknown`;
|
|
}
|
|
return os + vendor + product;
|
|
},
|
|
},
|
|
};
|
|
mergeInto(LibraryManager.library, GodotInputGamepads);
|
|
|
|
/*
|
|
* Drag and drop helper.
|
|
* This is pretty big, but basically detect dropped files on GodotConfig.canvas,
|
|
* process them one by one (recursively for directories), and copies them to
|
|
* the temporary FS path '/tmp/drop-[random]/' so it can be emitted as a godot
|
|
* event (that requires a string array of paths).
|
|
*
|
|
* NOTE: The temporary files are removed after the callback. This means that
|
|
* deferred callbacks won't be able to access the files.
|
|
*/
|
|
const GodotInputDragDrop = {
|
|
$GodotInputDragDrop__deps: ['$FS', '$GodotFS'],
|
|
$GodotInputDragDrop: {
|
|
promises: [],
|
|
pending_files: [],
|
|
|
|
add_entry: function (entry) {
|
|
if (entry.isDirectory) {
|
|
GodotInputDragDrop.add_dir(entry);
|
|
} else if (entry.isFile) {
|
|
GodotInputDragDrop.add_file(entry);
|
|
} else {
|
|
GodotRuntime.error('Unrecognized entry...', entry);
|
|
}
|
|
},
|
|
|
|
add_dir: function (entry) {
|
|
GodotInputDragDrop.promises.push(new Promise(function (resolve, reject) {
|
|
const reader = entry.createReader();
|
|
reader.readEntries(function (entries) {
|
|
for (let i = 0; i < entries.length; i++) {
|
|
GodotInputDragDrop.add_entry(entries[i]);
|
|
}
|
|
resolve();
|
|
});
|
|
}));
|
|
},
|
|
|
|
add_file: function (entry) {
|
|
GodotInputDragDrop.promises.push(new Promise(function (resolve, reject) {
|
|
entry.file(function (file) {
|
|
const reader = new FileReader();
|
|
reader.onload = function () {
|
|
const f = {
|
|
'path': file.relativePath || file.webkitRelativePath,
|
|
'name': file.name,
|
|
'type': file.type,
|
|
'size': file.size,
|
|
'data': reader.result,
|
|
};
|
|
if (!f['path']) {
|
|
f['path'] = f['name'];
|
|
}
|
|
GodotInputDragDrop.pending_files.push(f);
|
|
resolve();
|
|
};
|
|
reader.onerror = function () {
|
|
GodotRuntime.print('Error reading file');
|
|
reject();
|
|
};
|
|
reader.readAsArrayBuffer(file);
|
|
}, function (err) {
|
|
GodotRuntime.print('Error!');
|
|
reject();
|
|
});
|
|
}));
|
|
},
|
|
|
|
process: function (resolve, reject) {
|
|
if (GodotInputDragDrop.promises.length === 0) {
|
|
resolve();
|
|
return;
|
|
}
|
|
GodotInputDragDrop.promises.pop().then(function () {
|
|
setTimeout(function () {
|
|
GodotInputDragDrop.process(resolve, reject);
|
|
}, 0);
|
|
});
|
|
},
|
|
|
|
_process_event: function (ev, callback) {
|
|
ev.preventDefault();
|
|
if (ev.dataTransfer.items) {
|
|
// Use DataTransferItemList interface to access the file(s)
|
|
for (let i = 0; i < ev.dataTransfer.items.length; i++) {
|
|
const item = ev.dataTransfer.items[i];
|
|
let entry = null;
|
|
if ('getAsEntry' in item) {
|
|
entry = item.getAsEntry();
|
|
} else if ('webkitGetAsEntry' in item) {
|
|
entry = item.webkitGetAsEntry();
|
|
}
|
|
if (entry) {
|
|
GodotInputDragDrop.add_entry(entry);
|
|
}
|
|
}
|
|
} else {
|
|
GodotRuntime.error('File upload not supported');
|
|
}
|
|
new Promise(GodotInputDragDrop.process).then(function () {
|
|
const DROP = `/tmp/drop-${parseInt(Math.random() * (1 << 30), 10)}/`;
|
|
const drops = [];
|
|
const files = [];
|
|
FS.mkdir(DROP);
|
|
GodotInputDragDrop.pending_files.forEach((elem) => {
|
|
const path = elem['path'];
|
|
GodotFS.copy_to_fs(DROP + path, elem['data']);
|
|
let idx = path.indexOf('/');
|
|
if (idx === -1) {
|
|
// Root file
|
|
drops.push(DROP + path);
|
|
} else {
|
|
// Subdir
|
|
const sub = path.substr(0, idx);
|
|
idx = sub.indexOf('/');
|
|
if (idx < 0 && drops.indexOf(DROP + sub) === -1) {
|
|
drops.push(DROP + sub);
|
|
}
|
|
}
|
|
files.push(DROP + path);
|
|
});
|
|
GodotInputDragDrop.promises = [];
|
|
GodotInputDragDrop.pending_files = [];
|
|
callback(drops);
|
|
if (GodotConfig.persistent_drops) {
|
|
// Delay removal at exit.
|
|
GodotOS.atexit(function (resolve, reject) {
|
|
GodotInputDragDrop.remove_drop(files, DROP);
|
|
resolve();
|
|
});
|
|
} else {
|
|
GodotInputDragDrop.remove_drop(files, DROP);
|
|
}
|
|
});
|
|
},
|
|
|
|
remove_drop: function (files, drop_path) {
|
|
const dirs = [drop_path.substr(0, drop_path.length - 1)];
|
|
// Remove temporary files
|
|
files.forEach(function (file) {
|
|
FS.unlink(file);
|
|
let dir = file.replace(drop_path, '');
|
|
let idx = dir.lastIndexOf('/');
|
|
while (idx > 0) {
|
|
dir = dir.substr(0, idx);
|
|
if (dirs.indexOf(drop_path + dir) === -1) {
|
|
dirs.push(drop_path + dir);
|
|
}
|
|
idx = dir.lastIndexOf('/');
|
|
}
|
|
});
|
|
// Remove dirs.
|
|
dirs.sort(function (a, b) {
|
|
const al = (a.match(/\//g) || []).length;
|
|
const bl = (b.match(/\//g) || []).length;
|
|
if (al > bl) {
|
|
return -1;
|
|
} else if (al < bl) {
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}).forEach(function (dir) {
|
|
FS.rmdir(dir);
|
|
});
|
|
},
|
|
|
|
handler: function (callback) {
|
|
return function (ev) {
|
|
GodotInputDragDrop._process_event(ev, callback);
|
|
};
|
|
},
|
|
},
|
|
};
|
|
mergeInto(LibraryManager.library, GodotInputDragDrop);
|
|
|
|
/*
|
|
* Godot exposed input functions.
|
|
*/
|
|
const GodotInput = {
|
|
$GodotInput__deps: ['$GodotRuntime', '$GodotConfig', '$GodotEventListeners', '$GodotInputGamepads', '$GodotInputDragDrop'],
|
|
$GodotInput: {
|
|
getModifiers: function (evt) {
|
|
return (evt.shiftKey + 0) + ((evt.altKey + 0) << 1) + ((evt.ctrlKey + 0) << 2) + ((evt.metaKey + 0) << 3);
|
|
},
|
|
computePosition: function (evt, rect) {
|
|
const canvas = GodotConfig.canvas;
|
|
const rw = canvas.width / rect.width;
|
|
const rh = canvas.height / rect.height;
|
|
const x = (evt.clientX - rect.x) * rw;
|
|
const y = (evt.clientY - rect.y) * rh;
|
|
return [x, y];
|
|
},
|
|
},
|
|
|
|
/*
|
|
* Mouse API
|
|
*/
|
|
godot_js_input_mouse_move_cb__sig: 'vi',
|
|
godot_js_input_mouse_move_cb: function (callback) {
|
|
const func = GodotRuntime.get_func(callback);
|
|
const canvas = GodotConfig.canvas;
|
|
function move_cb(evt) {
|
|
const rect = canvas.getBoundingClientRect();
|
|
const pos = GodotInput.computePosition(evt, rect);
|
|
// Scale movement
|
|
const rw = canvas.width / rect.width;
|
|
const rh = canvas.height / rect.height;
|
|
const rel_pos_x = evt.movementX * rw;
|
|
const rel_pos_y = evt.movementY * rh;
|
|
const modifiers = GodotInput.getModifiers(evt);
|
|
func(pos[0], pos[1], rel_pos_x, rel_pos_y, modifiers);
|
|
}
|
|
GodotEventListeners.add(window, 'mousemove', move_cb, false);
|
|
},
|
|
|
|
godot_js_input_mouse_wheel_cb__sig: 'vi',
|
|
godot_js_input_mouse_wheel_cb: function (callback) {
|
|
const func = GodotRuntime.get_func(callback);
|
|
function wheel_cb(evt) {
|
|
if (func(evt['deltaX'] || 0, evt['deltaY'] || 0)) {
|
|
evt.preventDefault();
|
|
}
|
|
}
|
|
GodotEventListeners.add(GodotConfig.canvas, 'wheel', wheel_cb, false);
|
|
},
|
|
|
|
godot_js_input_mouse_button_cb__sig: 'vi',
|
|
godot_js_input_mouse_button_cb: function (callback) {
|
|
const func = GodotRuntime.get_func(callback);
|
|
const canvas = GodotConfig.canvas;
|
|
function button_cb(p_pressed, evt) {
|
|
const rect = canvas.getBoundingClientRect();
|
|
const pos = GodotInput.computePosition(evt, rect);
|
|
const modifiers = GodotInput.getModifiers(evt);
|
|
if (p_pressed && document.activeElement !== GodotConfig.canvas) {
|
|
GodotConfig.canvas.focus();
|
|
}
|
|
if (func(p_pressed, evt.button, pos[0], pos[1], modifiers)) {
|
|
evt.preventDefault();
|
|
}
|
|
}
|
|
GodotEventListeners.add(canvas, 'mousedown', button_cb.bind(null, 1), false);
|
|
GodotEventListeners.add(window, 'mouseup', button_cb.bind(null, 0), false);
|
|
},
|
|
|
|
/*
|
|
* Touch API
|
|
*/
|
|
godot_js_input_touch_cb__sig: 'viii',
|
|
godot_js_input_touch_cb: function (callback, ids, coords) {
|
|
const func = GodotRuntime.get_func(callback);
|
|
const canvas = GodotConfig.canvas;
|
|
function touch_cb(type, evt) {
|
|
if (type === 0 && document.activeElement !== GodotConfig.canvas) {
|
|
GodotConfig.canvas.focus();
|
|
}
|
|
const rect = canvas.getBoundingClientRect();
|
|
const touches = evt.changedTouches;
|
|
for (let i = 0; i < touches.length; i++) {
|
|
const touch = touches[i];
|
|
const pos = GodotInput.computePosition(touch, rect);
|
|
GodotRuntime.setHeapValue(coords + (i * 2), pos[0], 'double');
|
|
GodotRuntime.setHeapValue(coords + (i * 2 + 8), pos[1], 'double');
|
|
GodotRuntime.setHeapValue(ids + i, touch.identifier, 'i32');
|
|
}
|
|
func(type, touches.length);
|
|
if (evt.cancelable) {
|
|
evt.preventDefault();
|
|
}
|
|
}
|
|
GodotEventListeners.add(canvas, 'touchstart', touch_cb.bind(null, 0), false);
|
|
GodotEventListeners.add(canvas, 'touchend', touch_cb.bind(null, 1), false);
|
|
GodotEventListeners.add(canvas, 'touchcancel', touch_cb.bind(null, 1), false);
|
|
GodotEventListeners.add(canvas, 'touchmove', touch_cb.bind(null, 2), false);
|
|
},
|
|
|
|
/*
|
|
* Key API
|
|
*/
|
|
godot_js_input_key_cb__sig: 'viii',
|
|
godot_js_input_key_cb: function (callback, code, key) {
|
|
const func = GodotRuntime.get_func(callback);
|
|
function key_cb(pressed, evt) {
|
|
const modifiers = GodotInput.getModifiers(evt);
|
|
GodotRuntime.stringToHeap(evt.code, code, 32);
|
|
GodotRuntime.stringToHeap(evt.key, key, 32);
|
|
func(pressed, evt.repeat, modifiers);
|
|
evt.preventDefault();
|
|
}
|
|
GodotEventListeners.add(GodotConfig.canvas, 'keydown', key_cb.bind(null, 1), false);
|
|
GodotEventListeners.add(GodotConfig.canvas, 'keyup', key_cb.bind(null, 0), false);
|
|
},
|
|
|
|
/*
|
|
* Gamepad API
|
|
*/
|
|
godot_js_input_gamepad_cb__sig: 'vi',
|
|
godot_js_input_gamepad_cb: function (change_cb) {
|
|
const onchange = GodotRuntime.get_func(change_cb);
|
|
GodotInputGamepads.init(onchange);
|
|
},
|
|
|
|
godot_js_input_gamepad_sample_count__sig: 'i',
|
|
godot_js_input_gamepad_sample_count: function () {
|
|
return GodotInputGamepads.get_samples().length;
|
|
},
|
|
|
|
godot_js_input_gamepad_sample__sig: 'i',
|
|
godot_js_input_gamepad_sample: function () {
|
|
GodotInputGamepads.sample();
|
|
return 0;
|
|
},
|
|
|
|
godot_js_input_gamepad_sample_get__sig: 'iiiiiii',
|
|
godot_js_input_gamepad_sample_get: function (p_index, r_btns, r_btns_num, r_axes, r_axes_num, r_standard) {
|
|
const sample = GodotInputGamepads.get_sample(p_index);
|
|
if (!sample || !sample.connected) {
|
|
return 1;
|
|
}
|
|
const btns = sample.buttons;
|
|
const btns_len = btns.length < 16 ? btns.length : 16;
|
|
for (let i = 0; i < btns_len; i++) {
|
|
GodotRuntime.setHeapValue(r_btns + (i << 2), btns[i], 'float');
|
|
}
|
|
GodotRuntime.setHeapValue(r_btns_num, btns_len, 'i32');
|
|
const axes = sample.axes;
|
|
const axes_len = axes.length < 10 ? axes.length : 10;
|
|
for (let i = 0; i < axes_len; i++) {
|
|
GodotRuntime.setHeapValue(r_axes + (i << 2), axes[i], 'float');
|
|
}
|
|
GodotRuntime.setHeapValue(r_axes_num, axes_len, 'i32');
|
|
const is_standard = sample.standard ? 1 : 0;
|
|
GodotRuntime.setHeapValue(r_standard, is_standard, 'i32');
|
|
return 0;
|
|
},
|
|
|
|
/*
|
|
* Drag/Drop API
|
|
*/
|
|
godot_js_input_drop_files_cb__sig: 'vi',
|
|
godot_js_input_drop_files_cb: function (callback) {
|
|
const func = GodotRuntime.get_func(callback);
|
|
const dropFiles = function (files) {
|
|
const args = files || [];
|
|
if (!args.length) {
|
|
return;
|
|
}
|
|
const argc = args.length;
|
|
const argv = GodotRuntime.allocStringArray(args);
|
|
func(argv, argc);
|
|
GodotRuntime.freeStringArray(argv, argc);
|
|
};
|
|
const canvas = GodotConfig.canvas;
|
|
GodotEventListeners.add(canvas, 'dragover', function (ev) {
|
|
// Prevent default behavior (which would try to open the file(s))
|
|
ev.preventDefault();
|
|
}, false);
|
|
GodotEventListeners.add(canvas, 'drop', GodotInputDragDrop.handler(dropFiles));
|
|
},
|
|
|
|
/* Paste API */
|
|
godot_js_input_paste_cb__sig: 'vi',
|
|
godot_js_input_paste_cb: function (callback) {
|
|
const func = GodotRuntime.get_func(callback);
|
|
GodotEventListeners.add(window, 'paste', function (evt) {
|
|
const text = evt.clipboardData.getData('text');
|
|
const ptr = GodotRuntime.allocString(text);
|
|
func(ptr);
|
|
GodotRuntime.free(ptr);
|
|
}, false);
|
|
},
|
|
};
|
|
|
|
autoAddDeps(GodotInput, '$GodotInput');
|
|
mergeInto(LibraryManager.library, GodotInput);
|