Fix window.close() issue for main window when popup browser is opened.

Issue #221.

Author: cztomczak

src/client_handler.cpp

@@ -4,6 +4,7 @@
 
 #include "client_handler.h"
 #include "settings.h"
+#include "gtk.h"
 
 #include "include/cef_app.h"
 #include "include/wrapper/cef_helpers.h"
@@ -167,6 +168,21 @@ void ClientHandler::OnBeforeClose(CefRefPtr<CefBrowser> browser) {
     browser->GetHost()->GetRequestContext()->GetDefaultCookieManager(NULL)
             ->FlushStore(NULL);
 
+    // Currently if main window is closed app other popups will be
+    // closed too and app terminates. However when "window.close" is
+    // executed in main window (and a popup browser lives) then
+    // it will close browser, but it won't destroy main window,
+    // leaving a gray main window (and a popup running in background).
+    // So to resolve this, detect that browser embedded in main window
+    // is closing and destroy its GTK window, so that app terminates.
+    if (!browser->IsPopup() && browser_list_.size() > 1) {
+        GtkWidget* main_window = get_main_window();
+        if (main_window) {
+            LOG(INFO) << "Force destroy GTK window in OnBeforeClose";
+            gtk_widget_destroy(main_window);
+        }
+    }
+
     // Remove from the list of existing browsers.
     BrowserList::iterator bit = browser_list_.begin();
     for (; bit != browser_list_.end(); ++bit) {

src/gtk.cpp

@@ -79,7 +79,7 @@ void window_size_allocate_signal(GtkWidget* widget, GtkAllocation *alloc,
     if (!xid) {
         return;
     }
-    ::Window xchild = find_child_browser(cef_get_xdisplay(), xid);
+    ::Window xchild = find_child_browser(xid);
     // LOG(INFO) << "window_size_allocate_signal() xchild=" << xchild;
     if (!xchild) {
         return;
@@ -97,7 +97,7 @@ void window_focus_in_signal(GtkWidget* widget, gpointer data) {
     // LOG(INFO) << "window_focus_in_signal";
     ClientHandler *handler = ClientHandler::GetInstance();
     ::Window window_xid = get_window_xid(widget);
-    ::Window browser_xid = find_child_browser(cef_get_xdisplay(), window_xid);
+    ::Window browser_xid = find_child_browser(window_xid);
     CefRefPtr<CefBrowser> browser = handler->FindBrowserByXid(browser_xid);
     if (browser_xid && browser.get()) {
         // LOG(INFO) << "window_focus_in_signal: Focus browser";
@@ -109,7 +109,7 @@ void window_focus_out_signal(GtkWidget* widget, gpointer data) {
     // LOG(INFO) << "window_focus_out_signal";
     ClientHandler *handler = ClientHandler::GetInstance();
     ::Window window_xid = get_window_xid(widget);
-    ::Window browser_xid = find_child_browser(cef_get_xdisplay(), window_xid);
+    ::Window browser_xid = find_child_browser(window_xid);
     CefRefPtr<CefBrowser> browser = handler->FindBrowserByXid(browser_xid);
     if (browser_xid && browser.get()) {
         // LOG(INFO) << "window_focus_out_signal: Unfocus browser";
@@ -144,13 +144,14 @@ void set_window_icon(GtkWindow* window, const char* icon) {
     }
 }
 
-::Window find_child_browser(::Display* display, ::Window window) {
+::Window find_child_browser(::Window window) {
     ::Window root;
     ::Window parent;
     ::Window* children;
     ::Window child_window = 0L;
     unsigned int nchildren;
-    if (XQueryTree(display, window, &root, &parent, &children, &nchildren)) {
+    if (XQueryTree(cef_get_xdisplay(), window, &root, &parent, &children,
+                   &nchildren)) {
         if (children && nchildren > 1) {
             child_window = children[1]; // sic!
             XFree(children);

src/gtk.h

@@ -21,5 +21,5 @@ void window_focus_in_signal(GtkWidget* widget, gpointer data);
 void window_focus_out_signal(GtkWidget* widget, gpointer data);
 void window_destroy_signal(GtkWidget* widget, gpointer data);
 void set_window_icon(GtkWindow* window, const char* icon);
-::Window find_child_browser(::Display* display, ::Window window);
+::Window find_child_browser(::Window window);
 void fix_default_x11_visual(GtkWidget* widget);

src/www/window-close.php

@@ -0,0 +1,8 @@
+<style type="text/css">@import url("style.css");</style>
+<a href="index.php">Go back to index</a>
+| <a href="<?php echo $_SERVER["REQUEST_URI"];?>">Refresh</a>
+
+
+<h1>Test window.close</h1>
+
+<a href="javascript:void(window.close())">window.close()</a>