check if window is html or forced fullscreen

atom/browser/api/atom_api_web_contents.cc

@@ -221,6 +221,7 @@ void WebContents::EnterFullscreenModeForTab(content::WebContents* source,
   if (window) {
     window->SetHtmlApiFullscreen(true);
     source->GetRenderViewHost()->WasResized();
+    Emit("enter-html-full-screen");
   }
 }
 
@@ -229,6 +230,7 @@ void WebContents::ExitFullscreenModeForTab(content::WebContents* source) {
   if (window) {
     window->SetHtmlApiFullscreen(false);
     source->GetRenderViewHost()->WasResized();
+    Emit("leave-html-full-screen");
   }
 }
 

atom/browser/lib/guest-view-manager.coffee

@@ -20,6 +20,8 @@ supportedWebViewEvents = [
   'destroyed'
   'page-title-set'
   'page-favicon-updated'
+  'enter-html-full-screen'
+  'leave-html-full-screen'
 ]
 
 nextInstanceId = 0

atom/browser/native_window.cc

@@ -99,7 +99,7 @@ NativeWindow::NativeWindow(content::WebContents* web_contents,
       is_closed_(false),
       node_integration_(true),
       has_dialog_attached_(false),
-      fullscreen_(false),
+      html_fullscreen_(false),
       zoom_factor_(1.0),
       weak_factory_(this),
       inspectable_web_contents_(
@@ -806,8 +806,22 @@ void NativeWindow::ScheduleUnresponsiveEvent(int ms) {
 }
 
 void NativeWindow::SetHtmlApiFullscreen(bool enter_fullscreen) {
+  // Window is already in fullscreen mode, save the state.
+  if (enter_fullscreen && IsFullscreen()) {
+    forced_fullscreen_ = true;
+    html_fullscreen_ = true;
+    return;
+  }
+
+  // Exit html fullscreen state but not window's fullscreen mode.
+  if (!enter_fullscreen && forced_fullscreen_) {
+    html_fullscreen_ = false;
+    return;
+  }
+
   SetFullScreen(enter_fullscreen);
-  fullscreen_ = enter_fullscreen;
+  html_fullscreen_ = enter_fullscreen;
+  forced_fullscreen_ = false;
 }
 
 void NativeWindow::NotifyWindowUnresponsive() {

atom/browser/native_window.h

@@ -220,7 +220,7 @@ class NativeWindow : public brightray::DefaultWebContentsDelegate,
 
   bool has_frame() const { return has_frame_; }
 
-  bool IsHtmlApiFullscreen() const { return fullscreen_; }
+  bool IsHtmlApiFullscreen() const { return html_fullscreen_; }
 
   void set_has_dialog_attached(bool has_dialog_attached) {
     has_dialog_attached_ = has_dialog_attached;
@@ -349,7 +349,10 @@ class NativeWindow : public brightray::DefaultWebContentsDelegate,
   bool has_dialog_attached_;
 
   // Whether window is fullscreened by HTML5 api.
-  bool fullscreen_;
+  bool html_fullscreen_;
+
+  // Whether window is fullscreened by window api.
+  bool forced_fullscreen_;
 
   // Closure that would be called when window is unresponsive when closing,
   // it should be cancelled when we can prove that the window is responsive.

atom/renderer/lib/web-view/guest-view-internal.coffee

@@ -22,6 +22,8 @@ WEB_VIEW_EVENTS =
   'destroyed': []
   'page-title-set': ['title', 'explicitSet']
   'page-favicon-updated': ['favicons']
+  'enter-html-full-screen': []
+  'leave-html-full-screen': []
 
 dispatchEvent = (webView, event, args...) ->
   throw new Error("Unkown event #{event}") unless WEB_VIEW_EVENTS[event]?

docs/api/web-view-tag.md

@@ -361,6 +361,14 @@ url.
 
 Fired when page receives favicon urls.
 
+### enter-html-full-screen
+
+Fired when page enters fullscreen triggered by html api.
+
+### leave-html-full-screen
+
+Fired when page leaves fullscreen triggered by html api.
+
 ### console-message
 
 * `level` Integer