cefpython/src/client_handler/x11.cpp at master · anonymouscript/cefpython · GitHub

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// Project website: https://github.com/cztomczak/cefpython

// NOTE: This file is also used by "subprocess" and "libcefpythonapp"

// targets during build.

#include "x11.h"

#include "include/base/cef_logging.h"

int XErrorHandlerImpl(Display *display, XErrorEvent *event) {

LOG(INFO) << "[Browser process] "

<< "X error received: "

<< "type " << event->type << ", "

<< "serial " << event->serial << ", "

<< "error_code " << static_cast<int>(event->error_code) << ", "

<< "request_code " << static_cast<int>(event->request_code) << ", "

<< "minor_code " << static_cast<int>(event->minor_code);

return 0;

}

int XIOErrorHandlerImpl(Display *display) {

return 0;

}

void InstallX11ErrorHandlers() {

// Copied from upstream cefclient.

// Install xlib error handlers so that the application won't be terminated

// on non-fatal errors. Must be done after initializing GTK.

LOG(INFO) << "[Browser process] Install X11 error handlers";

XSetErrorHandler(XErrorHandlerImpl);

XSetIOErrorHandler(XIOErrorHandlerImpl);

}

void SetX11WindowBounds(CefRefPtr<CefBrowser> browser,

int x, int y, int width, int height) {

::Window xwindow = browser->GetHost()->GetWindowHandle();

::Display* xdisplay = cef_get_xdisplay();

XWindowChanges changes = {0};

changes.x = x;

changes.y = y;

changes.width = static_cast<int>(width);

changes.height = static_cast<int>(height);

XConfigureWindow(xdisplay, xwindow,

CWX | CWY | CWHeight | CWWidth, &changes);

}

void SetX11WindowTitle(CefRefPtr<CefBrowser> browser, char* title) {

::Window xwindow = browser->GetHost()->GetWindowHandle();

::Display* xdisplay = cef_get_xdisplay();

XStoreName(xdisplay, xwindow, title);

}

GtkWindow* CefBrowser_GetGtkWindow(CefRefPtr<CefBrowser> browser) {

// TODO: Should return NULL when using the Views framework

// -- REWRITTEN FOR CEF PYTHON USE CASE --

// X11 window handle

::Window xwindow = browser->GetHost()->GetWindowHandle();

// X11 display

::Display* xdisplay = cef_get_xdisplay();

// GDK display

GdkDisplay* gdk_display = NULL;

if (xdisplay) {

// See if we can find GDK display using X11 display

gdk_display = gdk_x11_lookup_xdisplay(xdisplay);

}

if (!gdk_display) {

// If not then get the default display

gdk_display = gdk_display_get_default();

}

if (!gdk_display) {

// The tkinter_.py and hello_world.py examples do not use GTK

// internally, so GTK wasn't yet initialized and must do it

// now, so that display is available. Also must install X11

// error handlers to avoid 'BadWindow' errors.

// --

// A similar code is in cefpython_app.cpp and it might already

// been executed. If making changes here, make changes there

// as well.

LOG(INFO) << "[Browser process] Initialize GTK";

gtk_init(0, NULL);

InstallX11ErrorHandlers();

// Now the display is available

gdk_display = gdk_display_get_default();

}

// In kivy_.py example getting error message:

// > Can't create GtkPlug as child of non-GtkSocket

// However dialog handler works just fine.

GtkWidget* widget = gtk_plug_new_for_display(gdk_display, xwindow);

// Getting top level widget doesn't seem to be required.

// OFF: GtkWidget* toplevel = gtk_widget_get_toplevel(widget);

GtkWindow* window = GTK_WINDOW(widget);

if (!window) {

LOG(ERROR) << "No GtkWindow for browser";

}

return window;

}

XImage* CefBrowser_GetImage(CefRefPtr<CefBrowser> browser) {

::Display* display = cef_get_xdisplay();

if (!display) {

LOG(ERROR) << "XOpenDisplay failed in CefBrowser_GetImage";

return NULL;

}

::Window browser_window = browser->GetHost()->GetWindowHandle();

XWindowAttributes attrs;

if (!XGetWindowAttributes(display, browser_window, &attrs)) {

LOG(ERROR) << "XGetWindowAttributes failed in CefBrowser_GetImage";

return NULL;

}

XImage* image = XGetImage(display, browser_window,

0, 0, attrs.width, attrs.height,

AllPlanes, ZPixmap);

if (!image) {

LOG(ERROR) << "XGetImage failed in CefBrowser_GetImage";

return NULL;

}

return image;

}

cefpython/src/client_handler/x11.cpp at master · anonymouscript/cefpython · GitHub

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