add commands: zoomIn + zoomOut

README.md

@@ -64,6 +64,8 @@ __Other extensions supporting Vimium C:__
 * Chrome: add a feature to hook in-page "access keys" and enable it by default
 * Firefox: support 63+ and more conditions
 * VHints: <kbd>Tab</kbd>: now only switch visibility in limited ranges
+* add `zoomIn` and `zoomOut` commands, and use a huge count like `1111` to reset zoom
+  ([#83](https://github.com/gdh1995/vimium-c/issues/83), [philc#2978](https://github.com/philc/vimium/pull/2978))
 * fix some old bugs
 
 1.78.3

_locales/en/messages.json

@@ -473,6 +473,12 @@
 	"visitPreviousTab": {
 		"message": "Go to previously-visited tab on current window"
 	},
+	"zoomIn": {
+		"message": "Make a current tab zoom in"
+	},
+	"zoomOut": {
+		"message": "Make a current tab zoom out"
+	},
 	"createTab_s": {
 		"message": "Create new tab"
 	},

_locales/zh/messages.json

@@ -347,6 +347,12 @@
 	"visitPreviousTab": {
 		"message": "切换到最近访问的上一个标签页"
 	},
+	"zoomIn": {
+		"message": "放大网页"
+	},
+	"zoomOut": {
+		"message": "缩小网页"
+	},
 	"createTab_s": {
 		"message": "打开新的标签页"
 	},

background/commands.ts

@@ -479,7 +479,9 @@ availableCommands_: { __proto__: null as never,
   toggleVomnibarStyle: [ kBgCmd.toggleVomnibarStyle, 1, 1, { style: "dark" } ],
   closeDownloadBar: [ kBgCmd.moveTabToNewWindow, 1, 1, { all: 1 } ],
   showTip: [ kBgCmd.showTip, 1, 1 ],
-  visitPreviousTab: [ kBgCmd.visitPreviousTab, 1, 0 ]
+  visitPreviousTab: [ kBgCmd.visitPreviousTab, 1, 0 ],
+  zoomIn: [ kBgCmd.toggleZoom, 1, 0 ],
+  zoomOut: [ kBgCmd.toggleZoom, 1, 0, { count: -1 } ],
 } as ReadonlySafeDict<CommandsNS.Description>
 },
 CommandsData_: CommandsDataTy = CommandsData_ as never || {

background/help_dialog.ts

@@ -210,7 +210,7 @@ var HelpDialog = {
       , "scrollToBottom", "scrollToLeft", "scrollToRight", "scrollPageDown", "scrollPageUp"
       , "scrollPxDown", "scrollPxUp", "scrollPxLeft", "scrollPxRight"
       , "scrollFullPageDown", "scrollFullPageUp", "reload", "reloadTab", "reloadGivenTab"
-      , "toggleViewSource"
+      , "zoomIn", "zoomOut", "toggleViewSource"
       , "copyCurrentUrl", "copyCurrentTitle", "switchFocus", "simBackspace"
       , "LinkHints.activateModeToCopyLinkUrl", "LinkHints.activateModeToCopyLinkText"
       , "openCopiedUrlInCurrentTab", "openCopiedUrlInNewTab", "goUp", "goToRoot"

background/main.ts

@@ -970,7 +970,8 @@
     UseTab.CurWndTabs, UseTab.NoTab, UseTab.CurWndTabs, UseTab.NoTab, UseTab.ActiveTab,
     UseTab.ActiveTab, UseTab.NoTab, UseTab.CurWndTabs, UseTab.NoTab,
     UseTab.CurWndTabs, UseTab.NoTab, UseTab.NoTab,
-    UseTab.ActiveTab, UseTab.NoTab, UseTab.ActiveTab, UseTab.ActiveTab, UseTab.NoTab, UseTab.NoTab
+    UseTab.ActiveTab, UseTab.NoTab, UseTab.ActiveTab, UseTab.ActiveTab, UseTab.NoTab, UseTab.NoTab,
+    UseTab.NoTab
   ],
   BackgroundCommands: {
     [K in kBgCmd & number]:
@@ -1882,6 +1883,41 @@
         keyword: cOptions.keyword,
       });
       BackgroundCommands[kBgCmd.openUrl]();
+    },
+    /* kBgCmd.toggleZoom: */ function (this: void): void {
+      if (Build.BTypes & BrowserType.Edge && (!(Build.BTypes & ~BrowserType.Edge) || OnOther === BrowserType.Edge)) {
+        Backend_.complain_("control zoom settings of tabs");
+        return;
+      }
+      if (Build.BTypes & BrowserType.Chrome && Build.MinCVer < BrowserVer.Min$Tabs$$setZoom
+          && CurCVer_ < BrowserVer.Min$Tabs$$setZoom) {
+        Backend_.showHUD_(`Vimium C can not control zoom settings before Chrome ${BrowserVer.Min$Tabs$$setZoom}`);
+        return;
+      }
+      chrome.tabs.getZoom(curZoom => {
+        if (!curZoom) { return onRuntimeError(); }
+        cRepeat < -4 && (cRepeat = -cRepeat);
+        let newZoom = curZoom, m = Math;
+        if (cRepeat > 4) {
+          newZoom = cRepeat / (cRepeat > 1000 ? cRepeat : cRepeat > 49 ? 100 : 10);
+          newZoom = !(Build.BTypes & ~BrowserType.Firefox)
+              || Build.BTypes & BrowserType.Firefox && OnOther === BrowserType.Firefox
+              ? m.max(0.3, m.min(newZoom, 3)) : m.max(0.25, m.min(newZoom, 5));
+        } else {
+          let nearest = 0, delta = 9,
+          steps = !(Build.BTypes & ~BrowserType.Firefox)
+              || Build.BTypes & BrowserType.Firefox && OnOther === BrowserType.Firefox
+              ? [0.3, 0.5, 0.67, 0.8, 0.9, 1, 1.1, 1.2, 1.33, 1.5, 1.7, 2, 2.4, 3]
+              : [0.25, 1 / 3, 0.5, 2 / 3, 0.75, 0.8, 0.9, 1, 1.1, 1.25, 1.5, 1.75, 2, 2.5, 3, 4, 5];
+          for (let ind = 0, d2 = 0; ind < steps.length && (d2 = m.abs(steps[ind] - curZoom)) < delta; ind++) {
+            nearest = ind; delta = d2;
+          }
+          newZoom = steps[nearest + cRepeat < 0 ? 0 : m.min(nearest + cRepeat, steps.length - 1)];
+        }
+        if (m.abs(newZoom - curZoom) > 0.005) {
+          chrome.tabs.setZoom(newZoom);
+        }
+      });
     }
   ],
   numHeadRe = <RegExpOne> /^-?\d+|^-/;

types/messages.d.ts

@@ -189,7 +189,7 @@ declare const enum kBgCmd {
   goToRoot, goUp, moveTab, mainFrame,
   visitPreviousTab, copyTabInfo, clearFindHistory,
   toggleViewSource, clearMarks, toggleVomnibarStyle,
-  goBackFallback, showTip, autoOpenFallback,
+  goBackFallback, showTip, autoOpenFallback, toggleZoom,
   END = "END",
 }
 

types/vimium_c.d.ts

@@ -563,6 +563,7 @@ declare const enum BrowserVer {
   // before 42, event.path is a simple NodeList instance ; even if EXPERIMENTAL or LEGACY
   Min$Event$$path$IsStdArrayAndIncludesWindow = 42,
   Min$Tabs$$getZoom = 42,
+  Min$Tabs$$setZoom = 42,
   Min$EnableSitePerProcess$Flag = 42,
   MinParentNodeGetterInNodePrototype = 42, // also .childNodes; even if even if EXPERIMENTAL or LEGACY
   MinEnsured$fetch = 42, // even if LEGACY; can not fetch chrome-extension:// before C47