feat: allow registering multiple shortcuts (#15542)

This PR allows for multiple global shortcuts to be registered such that triggering any of them calls the same callback.

atom/browser/api/atom_api_global_shortcut.cc

@@ -5,6 +5,7 @@
 #include "atom/browser/api/atom_api_global_shortcut.h"
 
 #include <string>
+#include <vector>
 
 #include "atom/common/native_mate_converters/accelerator_converter.h"
 #include "atom/common/native_mate_converters/callback.h"
@@ -38,6 +39,24 @@ void GlobalShortcut::OnKeyPressed(const ui::Accelerator& accelerator) {
   accelerator_callback_map_[accelerator].Run();
 }
 
+bool GlobalShortcut::RegisterAll(
+    const std::vector<ui::Accelerator>& accelerators,
+    const base::Closure& callback) {
+  std::vector<ui::Accelerator> registered;
+  for (auto& accelerator : accelerators) {
+    GlobalShortcutListener* listener = GlobalShortcutListener::GetInstance();
+    if (!listener->RegisterAccelerator(accelerator, this)) {
+      // unregister all shortcuts if any failed
+      UnregisterSome(registered);
+      return false;
+    }
+
+    registered.push_back(accelerator);
+    accelerator_callback_map_[accelerator] = callback;
+  }
+  return true;
+}
+
 bool GlobalShortcut::Register(const ui::Accelerator& accelerator,
                               const base::Closure& callback) {
   if (!GlobalShortcutListener::GetInstance()->RegisterAccelerator(accelerator,
@@ -58,6 +77,13 @@ void GlobalShortcut::Unregister(const ui::Accelerator& accelerator) {
                                                                this);
 }
 
+void GlobalShortcut::UnregisterSome(
+    const std::vector<ui::Accelerator>& accelerators) {
+  for (auto& accelerator : accelerators) {
+    Unregister(accelerator);
+  }
+}
+
 bool GlobalShortcut::IsRegistered(const ui::Accelerator& accelerator) {
   return ContainsKey(accelerator_callback_map_, accelerator);
 }
@@ -77,6 +103,7 @@ void GlobalShortcut::BuildPrototype(v8::Isolate* isolate,
                                     v8::Local<v8::FunctionTemplate> prototype) {
   prototype->SetClassName(mate::StringToV8(isolate, "GlobalShortcut"));
   mate::ObjectTemplateBuilder(isolate, prototype->PrototypeTemplate())
+      .SetMethod("registerAll", &GlobalShortcut::RegisterAll)
       .SetMethod("register", &GlobalShortcut::Register)
       .SetMethod("isRegistered", &GlobalShortcut::IsRegistered)
       .SetMethod("unregister", &GlobalShortcut::Unregister)

atom/browser/api/atom_api_global_shortcut.h

@@ -7,6 +7,7 @@
 
 #include <map>
 #include <string>
+#include <vector>
 
 #include "atom/browser/api/trackable_object.h"
 #include "base/callback.h"
@@ -33,10 +34,13 @@ class GlobalShortcut : public extensions::GlobalShortcutListener::Observer,
  private:
   typedef std::map<ui::Accelerator, base::Closure> AcceleratorCallbackMap;
 
+  bool RegisterAll(const std::vector<ui::Accelerator>& accelerators,
+                   const base::Closure& callback);
   bool Register(const ui::Accelerator& accelerator,
                 const base::Closure& callback);
   bool IsRegistered(const ui::Accelerator& accelerator);
   void Unregister(const ui::Accelerator& accelerator);
+  void UnregisterSome(const std::vector<ui::Accelerator>& accelerators);
   void UnregisterAll();
 
   // GlobalShortcutListener::Observer implementation.

docs/api/global-shortcut.md

@@ -54,6 +54,17 @@ When the accelerator is already taken by other applications, this call will
 silently fail. This behavior is intended by operating systems, since they don't
 want applications to fight for global shortcuts.
 
+### `globalShortcut.registerAll(accelerators, callback)`
+
+* `accelerators` String[] - an array of [Accelerator](accelerator.md)s.
+* `callback` Function
+
+Registers a global shortcut of all `accelerator` items in `accelerators`. The `callback` is called when any of the registered shortcuts are pressed by the user.
+
+When a given accelerator is already taken by other applications, this call will
+silently fail. This behavior is intended by operating systems, since they don't
+want applications to fight for global shortcuts.
+
 ### `globalShortcut.isRegistered(accelerator)`
 
 * `accelerator` [Accelerator](accelerator.md)

spec/api-global-shortcut-spec.js

@@ -18,8 +18,8 @@ describe('globalShortcut module', () => {
     globalShortcut.unregisterAll()
   })
 
-  it('can register and unregister accelerators', () => {
-    const accelerator = 'CommandOrControl+A+B+C'
+  it('can register and unregister single accelerators', () => {
+    const accelerator = 'CmdOrCtrl+A+B+C'
 
     expect(globalShortcut.isRegistered(accelerator)).to.be.false()
     globalShortcut.register(accelerator, () => {})
@@ -33,4 +33,21 @@ describe('globalShortcut module', () => {
     globalShortcut.unregisterAll()
     expect(globalShortcut.isRegistered(accelerator)).to.be.false()
   })
+
+  it('can register and unregister multiple accelerators', () => {
+    const accelerators = ['CmdOrCtrl+X', 'CmdOrCtrl+Y']
+
+    expect(globalShortcut.isRegistered(accelerators[0])).to.be.false()
+    expect(globalShortcut.isRegistered(accelerators[1])).to.be.false()
+
+    globalShortcut.registerAll(accelerators, () => {})
+
+    expect(globalShortcut.isRegistered(accelerators[0])).to.be.true()
+    expect(globalShortcut.isRegistered(accelerators[1])).to.be.true()
+
+    globalShortcut.unregisterAll()
+
+    expect(globalShortcut.isRegistered(accelerators[0])).to.be.false()
+    expect(globalShortcut.isRegistered(accelerators[1])).to.be.false()
+  })
 })