cefpython/src/client_handler/dialog_handler_gtk.cpp at cefpython57 · 2php/cefpython · GitHub

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// Default dialog handler implementation on Linux.

// Copied from upstream cefclient with changes:

// - Rewrote GetWindow() func

// - Removed "client" namespace

// - Changed titles of JS alerts, removed URL and "Javascript" word

// reserved. Use of this source code is governed by a BSD-style license that

// can be found in the LICENSE file.

#include <libgen.h>

#include <sys/stat.h>

#include <X11/Xlib.h>

#include <gtk/gtk.h>

#include <gdk/gdkx.h>

#include "include/cef_browser.h"

#include "include/cef_parser.h"

#include "include/wrapper/cef_helpers.h"

#include "include/base/cef_logging.h"

#include "dialog_handler_gtk.h"

#include "x11.h"

namespace {

const char kPromptTextId[] = "cef_prompt_text";

// If there's a text entry in the dialog, get the text from the first one and

// return it.

std::string GetPromptText(GtkDialog* dialog) {

GtkWidget* widget = static_cast<GtkWidget*>(

g_object_get_data(G_OBJECT(dialog), kPromptTextId));

if (widget)

return gtk_entry_get_text(GTK_ENTRY(widget));

return std::string();

}

std::string GetDescriptionFromMimeType(const std::string& mime_type) {

// Check for wild card mime types and return an appropriate description.

static const struct {

const char* mime_type;

const char* label;

} kWildCardMimeTypes[] = {

{ "audio", "Audio Files" },

{ "image", "Image Files" },

{ "text", "Text Files" },

{ "video", "Video Files" },

};

for (size_t i = 0;

i < sizeof(kWildCardMimeTypes) / sizeof(kWildCardMimeTypes[0]); ++i) {

if (mime_type == std::string(kWildCardMimeTypes[i].mime_type) + "/*")

return std::string(kWildCardMimeTypes[i].label);

}

return std::string();

}

void AddFilters(GtkFileChooser* chooser,

const std::vector<CefString>& accept_filters,

bool include_all_files,

std::vector<GtkFileFilter*>* filters) {

bool has_filter = false;

for (size_t i = 0; i < accept_filters.size(); ++i) {

const std::string& filter = accept_filters[i];

if (filter.empty())

continue;

std::vector<std::string> extensions;

std::string description;

size_t sep_index = filter.find('|');

if (sep_index != std::string::npos) {

// Treat as a filter of the form "Filter Name|.ext1;.ext2;.ext3".

description = filter.substr(0, sep_index);

const std::string& exts = filter.substr(sep_index + 1);

size_t last = 0;

size_t size = exts.size();

for (size_t i = 0; i <= size; ++i) {

if (i == size || exts[i] == ';') {

std::string ext(exts, last, i - last);

if (!ext.empty() && ext[0] == '.')

extensions.push_back(ext);

last = i + 1;

}

} else if (filter[0] == '.') {

// Treat as an extension beginning with the '.' character.

extensions.push_back(filter);

} else {

// Otherwise convert mime type to one or more extensions.

description = GetDescriptionFromMimeType(filter);

std::vector<CefString> ext;

CefGetExtensionsForMimeType(filter, ext);

for (size_t x = 0; x < ext.size(); ++x)

extensions.push_back("." + ext[x].ToString());

}

if (extensions.empty())

continue;

GtkFileFilter* gtk_filter = gtk_file_filter_new();

std::string ext_str;

for (size_t x = 0; x < extensions.size(); ++x) {

const std::string& pattern = "*" + extensions[x];

if (x != 0)

ext_str += ";";

ext_str += pattern;

gtk_file_filter_add_pattern(gtk_filter, pattern.c_str());

}

if (description.empty())

description = ext_str;

else

description += " (" + ext_str + ")";

gtk_file_filter_set_name(gtk_filter, description.c_str());

gtk_file_chooser_add_filter(chooser, gtk_filter);

if (!has_filter)

has_filter = true;

filters->push_back(gtk_filter);

}

// Add the *.* filter, but only if we have added other filters (otherwise it

// is implied).

if (include_all_files && has_filter) {

GtkFileFilter* filter = gtk_file_filter_new();

gtk_file_filter_add_pattern(filter, "*");

gtk_file_filter_set_name(filter, "All Files (*)");

gtk_file_chooser_add_filter(chooser, filter);

}

GtkWindow* GetWindow(CefRefPtr<CefBrowser> browser) {

// -- 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.

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;

}

} // namespace

ClientDialogHandlerGtk::ClientDialogHandlerGtk()

: gtk_dialog_(NULL) {

}

bool ClientDialogHandlerGtk::OnFileDialog(

CefRefPtr<CefBrowser> browser,

FileDialogMode mode,

const CefString& title,

const CefString& default_file_path,

const std::vector<CefString>& accept_filters,

int selected_accept_filter,

CefRefPtr<CefFileDialogCallback> callback) {

std::vector<CefString> files;

GtkFileChooserAction action;

const gchar* accept_button;

// Remove any modifier flags.

FileDialogMode mode_type =

static_cast<FileDialogMode>(mode & FILE_DIALOG_TYPE_MASK);

if (mode_type == FILE_DIALOG_OPEN || mode_type == FILE_DIALOG_OPEN_MULTIPLE) {

action = GTK_FILE_CHOOSER_ACTION_OPEN;

accept_button = GTK_STOCK_OPEN;

} else if (mode_type == FILE_DIALOG_OPEN_FOLDER) {

action = GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER;

accept_button = GTK_STOCK_OPEN;

} else if (mode_type == FILE_DIALOG_SAVE) {

action = GTK_FILE_CHOOSER_ACTION_SAVE;

accept_button = GTK_STOCK_SAVE;

} else {

NOTREACHED();

return false;

}

std::string title_str;

if (!title.empty()) {

title_str = title;

} else {

switch (mode_type) {

case FILE_DIALOG_OPEN:

title_str = "Open File";

break;

case FILE_DIALOG_OPEN_MULTIPLE:

title_str = "Open Files";

break;

case FILE_DIALOG_OPEN_FOLDER:

title_str = "Open Folder";

break;

case FILE_DIALOG_SAVE:

title_str = "Save File";

break;

default:

break;

}

GtkWindow* window = GetWindow(browser);

if (!window)

return false;

GtkWidget* dialog = gtk_file_chooser_dialog_new(

title_str.c_str(),

GTK_WINDOW(window),

action,

GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,

accept_button, GTK_RESPONSE_ACCEPT,

NULL);

if (mode_type == FILE_DIALOG_OPEN_MULTIPLE)

gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(dialog), TRUE);

if (mode_type == FILE_DIALOG_SAVE) {

gtk_file_chooser_set_do_overwrite_confirmation(

GTK_FILE_CHOOSER(dialog),

!!(mode & FILE_DIALOG_OVERWRITEPROMPT_FLAG));

}

gtk_file_chooser_set_show_hidden(GTK_FILE_CHOOSER(dialog),

!(mode & FILE_DIALOG_HIDEREADONLY_FLAG));

if (!default_file_path.empty() && mode_type == FILE_DIALOG_SAVE) {

const std::string& file_path = default_file_path;

bool exists = false;

struct stat sb;

if (stat(file_path.c_str(), &sb) == 0 && S_ISREG(sb.st_mode)) {

// Use the directory and name of the existing file.

gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(dialog),

file_path.data());

exists = true;

}

if (!exists) {

// Set the current file name but let the user choose the directory.

std::string file_name_str = file_path;

const char* file_name = basename(const_cast<char*>(file_name_str.data()));

gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(dialog), file_name);

}

std::vector<GtkFileFilter*> filters;

AddFilters(GTK_FILE_CHOOSER(dialog), accept_filters, true, &filters);

if (selected_accept_filter < static_cast<int>(filters.size())) {

gtk_file_chooser_set_filter(GTK_FILE_CHOOSER(dialog),

filters[selected_accept_filter]);

}

bool success = false;

if (gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT) {

if (mode_type == FILE_DIALOG_OPEN || mode_type == FILE_DIALOG_OPEN_FOLDER ||

mode_type == FILE_DIALOG_SAVE) {

char* filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));

files.push_back(std::string(filename));

success = true;

} else if (mode_type == FILE_DIALOG_OPEN_MULTIPLE) {

GSList* filenames =

gtk_file_chooser_get_filenames(GTK_FILE_CHOOSER(dialog));

if (filenames) {

for (GSList* iter = filenames; iter != NULL;

iter = g_slist_next(iter)) {

std::string path(static_cast<char*>(iter->data));

g_free(iter->data);

files.push_back(path);

}

g_slist_free(filenames);

success = true;

}

int filter_index = selected_accept_filter;

if (success) {

GtkFileFilter* selected_filter =

gtk_file_chooser_get_filter(GTK_FILE_CHOOSER(dialog));

if (selected_filter != NULL) {

for (size_t x = 0; x < filters.size(); ++x) {

if (filters[x] == selected_filter) {

filter_index = x;

break;

}

gtk_widget_destroy(dialog);

if (success)

callback->Continue(filter_index, files);

else

callback->Cancel();

return true;

}

bool ClientDialogHandlerGtk::OnJSDialog(

CefRefPtr<CefBrowser> browser,

const CefString& origin_url,

JSDialogType dialog_type,

const CefString& message_text,

const CefString& default_prompt_text,

CefRefPtr<CefJSDialogCallback> callback,

bool& suppress_message) {

CEF_REQUIRE_UI_THREAD();

GtkButtonsType buttons = GTK_BUTTONS_NONE;

GtkMessageType gtk_message_type = GTK_MESSAGE_OTHER;

std::string title;

switch (dialog_type) {

case JSDIALOGTYPE_ALERT:

buttons = GTK_BUTTONS_NONE;

gtk_message_type = GTK_MESSAGE_WARNING;

title = "Alert";

break;

case JSDIALOGTYPE_CONFIRM:

buttons = GTK_BUTTONS_CANCEL;

gtk_message_type = GTK_MESSAGE_QUESTION;

title = "Confirm";

break;

case JSDIALOGTYPE_PROMPT:

buttons = GTK_BUTTONS_CANCEL;

gtk_message_type = GTK_MESSAGE_QUESTION;

title = "Prompt";

break;

}

js_dialog_callback_ = callback;

if (!origin_url.empty()) {

// title += " - ";

// title += CefFormatUrlForSecurityDisplay(origin_url).ToString();

}

GtkWindow* window = GetWindow(browser);

if (!window)

return false;

gtk_dialog_ = gtk_message_dialog_new(GTK_WINDOW(window),

GTK_DIALOG_MODAL,

gtk_message_type,

buttons,

"%s",

message_text.ToString().c_str());

g_signal_connect(gtk_dialog_,

"delete-event",

G_CALLBACK(gtk_widget_hide_on_delete),

NULL);

gtk_window_set_title(GTK_WINDOW(gtk_dialog_), title.c_str());

GtkWidget* ok_button = gtk_dialog_add_button(GTK_DIALOG(gtk_dialog_),

GTK_STOCK_OK,

GTK_RESPONSE_OK);

if (dialog_type != JSDIALOGTYPE_PROMPT)

gtk_widget_grab_focus(ok_button);

if (dialog_type == JSDIALOGTYPE_PROMPT) {

GtkWidget* content_area =

gtk_dialog_get_content_area(GTK_DIALOG(gtk_dialog_));

GtkWidget* text_box = gtk_entry_new();

gtk_entry_set_text(GTK_ENTRY(text_box),

default_prompt_text.ToString().c_str());

gtk_box_pack_start(GTK_BOX(content_area), text_box, TRUE, TRUE, 0);

g_object_set_data(G_OBJECT(gtk_dialog_), kPromptTextId, text_box);

gtk_entry_set_activates_default(GTK_ENTRY(text_box), TRUE);

}

gtk_dialog_set_default_response(GTK_DIALOG(gtk_dialog_), GTK_RESPONSE_OK);

g_signal_connect(gtk_dialog_, "response", G_CALLBACK(OnDialogResponse), this);

gtk_widget_show_all(GTK_WIDGET(gtk_dialog_));

return true;

}

bool ClientDialogHandlerGtk::OnBeforeUnloadDialog(

CefRefPtr<CefBrowser> browser,

const CefString& message_text,

bool is_reload,

CefRefPtr<CefJSDialogCallback> callback) {

CEF_REQUIRE_UI_THREAD();

const std::string& new_message_text =

message_text.ToString() + "\n\nIs it OK to leave/reload this page?";

bool suppress_message = false;

return OnJSDialog(browser, CefString(), JSDIALOGTYPE_CONFIRM,

new_message_text, CefString(), callback, suppress_message);

}

void ClientDialogHandlerGtk::OnResetDialogState(CefRefPtr<CefBrowser> browser) {

CEF_REQUIRE_UI_THREAD();

if (!gtk_dialog_)

return;

gtk_widget_destroy(gtk_dialog_);

gtk_dialog_ = NULL;

js_dialog_callback_ = NULL;

}

// static

void ClientDialogHandlerGtk::OnDialogResponse(GtkDialog* dialog,

gint response_id,

ClientDialogHandlerGtk* handler) {

CEF_REQUIRE_UI_THREAD();

DCHECK_EQ(dialog, GTK_DIALOG(handler->gtk_dialog_));

switch (response_id) {

case GTK_RESPONSE_OK:

handler->js_dialog_callback_->Continue(true, GetPromptText(dialog));

break;

case GTK_RESPONSE_CANCEL:

case GTK_RESPONSE_DELETE_EVENT:

handler->js_dialog_callback_->Continue(false, CefString());

break;

default:

NOTREACHED();

}

handler->OnResetDialogState(NULL);

}

cefpython/src/client_handler/dialog_handler_gtk.cpp at cefpython57 · 2php/cefpython · GitHub

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