Add button to open context menu (#728)

* Add button to open context menu

In some contexts, it's hard or impossible to open the context menu of the emulator, which is required to access important secondary options such as quick states, screen recording, and software information. Primarily, it's apparently impossible to open the context menu on a mobile web browser, since a long press on the screen is, for good reason, not registered like a right mouse click is on desktop. This commit adds what I think is the ideal solution to the issue: a button on the menu bar/drawer that opens up the context menu, without cluttering it up with multiple options, just a single new one.

* Update en locale (en.json, Translate.html)

* Fix contextMenuButton dimensions

* Set contextMenu to be centered when open via button

data/emulator.js

@@ -1789,6 +1789,16 @@ class EmulatorJS {
 
         this.elements.menu.appendChild(volumeSettings);
 
+        const contextMenuButton = addButton("Context Menu", '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--!Font Awesome Free 6.5.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free Copyright 2023 Fonticons, Inc.--><path d="M0 96C0 78.3 14.3 64 32 64H416c17.7 0 32 14.3 32 32s-14.3 32-32 32H32C14.3 128 0 113.7 0 96zM0 256c0-17.7 14.3-32 32-32H416c17.7 0 32 14.3 32 32s-14.3 32-32 32H32c-17.7 0-32-14.3-32-32zM448 416c0 17.7-14.3 32-32 32H32c-17.7 0-32-14.3-32-32s14.3-32 32-32H416c17.7 0 32 14.3 32 32z"/></svg>', () => {
+            if (this.elements.contextmenu.style.display == "none") {
+                this.elements.contextmenu.style.display = "block";
+                this.elements.contextmenu.style.left = (getComputedStyle(this.elements.parent).width.split("px")[0]/2 - getComputedStyle(this.elements.contextmenu).width.split("px")[0]/2)+"px";
+                this.elements.contextmenu.style.top = (getComputedStyle(this.elements.parent).height.split("px")[0]/2 - getComputedStyle(this.elements.contextmenu).height.split("px")[0]/2)+"px";
+            } else {
+                this.elements.contextmenu.style.display = "none";
+            }
+        });
+        
         this.settingParent = this.createElement("div");
         this.settingsMenuOpen = false;
         const settingButton = addButton("Settings", '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M495.9 166.6C499.2 175.2 496.4 184.9 489.6 191.2L446.3 230.6C447.4 238.9 448 247.4 448 256C448 264.6 447.4 273.1 446.3 281.4L489.6 320.8C496.4 327.1 499.2 336.8 495.9 345.4C491.5 357.3 486.2 368.8 480.2 379.7L475.5 387.8C468.9 398.8 461.5 409.2 453.4 419.1C447.4 426.2 437.7 428.7 428.9 425.9L373.2 408.1C359.8 418.4 344.1 427 329.2 433.6L316.7 490.7C314.7 499.7 307.7 506.1 298.5 508.5C284.7 510.8 270.5 512 255.1 512C241.5 512 227.3 510.8 213.5 508.5C204.3 506.1 197.3 499.7 195.3 490.7L182.8 433.6C167 427 152.2 418.4 138.8 408.1L83.14 425.9C74.3 428.7 64.55 426.2 58.63 419.1C50.52 409.2 43.12 398.8 36.52 387.8L31.84 379.7C25.77 368.8 20.49 357.3 16.06 345.4C12.82 336.8 15.55 327.1 22.41 320.8L65.67 281.4C64.57 273.1 64 264.6 64 256C64 247.4 64.57 238.9 65.67 230.6L22.41 191.2C15.55 184.9 12.82 175.3 16.06 166.6C20.49 154.7 25.78 143.2 31.84 132.3L36.51 124.2C43.12 113.2 50.52 102.8 58.63 92.95C64.55 85.8 74.3 83.32 83.14 86.14L138.8 103.9C152.2 93.56 167 84.96 182.8 78.43L195.3 21.33C197.3 12.25 204.3 5.04 213.5 3.51C227.3 1.201 241.5 0 256 0C270.5 0 284.7 1.201 298.5 3.51C307.7 5.04 314.7 12.25 316.7 21.33L329.2 78.43C344.1 84.96 359.8 93.56 373.2 103.9L428.9 86.14C437.7 83.32 447.4 85.8 453.4 92.95C461.5 102.8 468.9 113.2 475.5 124.2L480.2 132.3C486.2 143.2 491.5 154.7 495.9 166.6V166.6zM256 336C300.2 336 336 300.2 336 255.1C336 211.8 300.2 175.1 256 175.1C211.8 175.1 176 211.8 176 255.1C176 300.2 211.8 336 256 336z"/></svg>', () => {
@@ -1893,6 +1903,7 @@ class EmulatorJS {
             playPause: [pauseButton, playButton],
             restart: [restartButton],
             settings: [settingButton],
+            contextMenu: [contextMenuButton],
             fullscreen: [enter, exit],
             saveState: [saveState],
             loadState: [loadState],

data/localization/Translate.html

@@ -42,6 +42,7 @@
             "Mute": "-Mute",
             "Unmute": "-Unmute",
             "Settings": "-Settings",
+            "Context Menu": "-Context Menu",
             "Enter Fullscreen": "-Enter Fullscreen",
             "Exit Fullscreen": "-Exit Fullscreen",
             "Reset": "-Reset",

data/localization/en.json

@@ -25,6 +25,7 @@
     "Settings": "-Settings",
     "Enter Fullscreen": "-Enter Fullscreen",
     "Exit Fullscreen": "-Exit Fullscreen",
+    "Context Menu": "-Context Menu",
     "Reset": "-Reset",
     "Clear": "-Clear",
     "Close": "-Close",