add hw2

node_modules/chromium-bidi/lib/cjs/bidiMapper/modules/input/InputSource.js

@@ -0,0 +1,153 @@
+"use strict";
+/**
+ * Copyright 2023 Google LLC.
+ * Copyright (c) Microsoft Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+var _a;
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.WheelSource = exports.PointerSource = exports.KeySource = exports.NoneSource = void 0;
+class NoneSource {
+    type = "none" /* SourceType.None */;
+}
+exports.NoneSource = NoneSource;
+class KeySource {
+    type = "key" /* SourceType.Key */;
+    pressed = new Set();
+    // This is a bitfield that matches the modifiers parameter of
+    // https://chromedevtools.github.io/devtools-protocol/tot/Input/#method-dispatchKeyEvent
+    #modifiers = 0;
+    get modifiers() {
+        return this.#modifiers;
+    }
+    get alt() {
+        return (this.#modifiers & 1) === 1;
+    }
+    set alt(value) {
+        this.#setModifier(value, 1);
+    }
+    get ctrl() {
+        return (this.#modifiers & 2) === 2;
+    }
+    set ctrl(value) {
+        this.#setModifier(value, 2);
+    }
+    get meta() {
+        return (this.#modifiers & 4) === 4;
+    }
+    set meta(value) {
+        this.#setModifier(value, 4);
+    }
+    get shift() {
+        return (this.#modifiers & 8) === 8;
+    }
+    set shift(value) {
+        this.#setModifier(value, 8);
+    }
+    #setModifier(value, bit) {
+        if (value) {
+            this.#modifiers |= bit;
+        }
+        else {
+            this.#modifiers &= ~bit;
+        }
+    }
+}
+exports.KeySource = KeySource;
+class PointerSource {
+    type = "pointer" /* SourceType.Pointer */;
+    subtype;
+    pointerId;
+    pressed = new Set();
+    x = 0;
+    y = 0;
+    radiusX;
+    radiusY;
+    force;
+    constructor(id, subtype) {
+        this.pointerId = id;
+        this.subtype = subtype;
+    }
+    // This is a bitfield that matches the buttons parameter of
+    // https://chromedevtools.github.io/devtools-protocol/tot/Input/#method-dispatchMouseEvent
+    get buttons() {
+        let buttons = 0;
+        for (const button of this.pressed) {
+            switch (button) {
+                case 0:
+                    buttons |= 1;
+                    break;
+                case 1:
+                    buttons |= 4;
+                    break;
+                case 2:
+                    buttons |= 2;
+                    break;
+                case 3:
+                    buttons |= 8;
+                    break;
+                case 4:
+                    buttons |= 16;
+                    break;
+            }
+        }
+        return buttons;
+    }
+    // --- Platform-specific code starts here ---
+    // Input.dispatchMouseEvent doesn't know the concept of double click, so we
+    // need to create the logic, similar to how it's done for OSes:
+    // https://source.chromium.org/chromium/chromium/src/+/refs/heads/main:ui/events/event.cc;l=479
+    static ClickContext = class ClickContext {
+        static #DOUBLE_CLICK_TIME_MS = 500;
+        static #MAX_DOUBLE_CLICK_RADIUS = 2;
+        count = 0;
+        #x;
+        #y;
+        #time;
+        constructor(x, y, time) {
+            this.#x = x;
+            this.#y = y;
+            this.#time = time;
+        }
+        compare(context) {
+            return (
+            // The click needs to be within a certain amount of ms.
+            context.#time - this.#time > ClickContext.#DOUBLE_CLICK_TIME_MS ||
+                // The click needs to be within a certain square radius.
+                Math.abs(context.#x - this.#x) >
+                    ClickContext.#MAX_DOUBLE_CLICK_RADIUS ||
+                Math.abs(context.#y - this.#y) > ClickContext.#MAX_DOUBLE_CLICK_RADIUS);
+        }
+    };
+    #clickContexts = new Map();
+    setClickCount(button, context) {
+        let storedContext = this.#clickContexts.get(button);
+        if (!storedContext || storedContext.compare(context)) {
+            storedContext = context;
+        }
+        ++storedContext.count;
+        this.#clickContexts.set(button, storedContext);
+        return storedContext.count;
+    }
+    getClickCount(button) {
+        return this.#clickContexts.get(button)?.count ?? 0;
+    }
+}
+exports.PointerSource = PointerSource;
+_a = PointerSource;
+class WheelSource {
+    type = "wheel" /* SourceType.Wheel */;
+}
+exports.WheelSource = WheelSource;
+//# sourceMappingURL=InputSource.js.map