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Copy pathdialog_handler_gtk.cpp
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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
// Copyright (c) 2015 The Chromium Embedded Framework Authors. All rights
// 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);
}
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