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cef/tests/cefclient/client_handler_gtk.cpp

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// Copyright (c) 2014 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 <gtk/gtk.h>
#include <libgen.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#undef Success // Definition conflicts with cef_message_router.h
#include <string>
#include "cefclient/client_handler.h"
#include "include/cef_browser.h"
#include "include/cef_frame.h"
#include "include/cef_url.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 AddFiltersForAcceptTypes(GtkFileChooser* chooser,
const std::vector<CefString>& accept_types,
bool include_all_files) {
bool has_filter = false;
for (size_t i = 0; i < accept_types.size(); ++i) {
std::string ascii_type = accept_types[i];
if (ascii_type.length()) {
// Just treat as extension if contains '.' as the first character.
if (ascii_type[0] == '.') {
GtkFileFilter* filter = gtk_file_filter_new();
std::string pattern = "*" + ascii_type;
gtk_file_filter_add_pattern(filter, pattern.c_str());
gtk_file_filter_set_name(filter, pattern.c_str());
gtk_file_chooser_add_filter(chooser, filter);
if (!has_filter)
has_filter = true;
} else {
// Otherwise convert mime type to one or more extensions.
GtkFileFilter* filter = NULL;
std::string description = GetDescriptionFromMimeType(ascii_type);
bool description_from_ext = description.empty();
std::vector<CefString> ext;
CefGetExtensionsForMimeType(ascii_type, ext);
for (size_t x = 0; x < ext.size(); ++x) {
if (!filter)
filter = gtk_file_filter_new();
std::string pattern = "*." + ext[x].ToString();
gtk_file_filter_add_pattern(filter, pattern.c_str());
if (description_from_ext) {
if (x != 0)
description += ";";
description += pattern;
}
}
if (filter) {
gtk_file_filter_set_name(filter, description.c_str());
gtk_file_chooser_add_filter(chooser, filter);
if (!has_filter)
has_filter = true;
}
}
}
}
// 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);
}
}
} // namespace
bool ClientHandler::OnFileDialog(CefRefPtr<CefBrowser> browser,
FileDialogMode mode,
const CefString& title,
const CefString& default_file_name,
const std::vector<CefString>& accept_types,
CefRefPtr<CefFileDialogCallback> callback) {
std::vector<CefString> files;
GtkFileChooserAction action;
const gchar* accept_button;
if (mode == FILE_DIALOG_OPEN || mode == FILE_DIALOG_OPEN_MULTIPLE) {
action = GTK_FILE_CHOOSER_ACTION_OPEN;
accept_button = GTK_STOCK_OPEN;
} else if (mode == FILE_DIALOG_SAVE) {
action = GTK_FILE_CHOOSER_ACTION_SAVE;
accept_button = GTK_STOCK_SAVE;
} else {
NOTREACHED();
return false;
}
std::string base_name;
if (!default_file_name.empty()) {
base_name =
basename(const_cast<char*>(default_file_name.ToString().c_str()));
}
std::string title_str;
if (!title.empty()) {
title_str = title;
} else {
switch (mode) {
case FILE_DIALOG_OPEN:
title_str = "Open File";
break;
case FILE_DIALOG_OPEN_MULTIPLE:
title_str = "Open Files";
break;
case FILE_DIALOG_SAVE:
title_str = "Save File";
break;
default:
break;
}
}
GtkWidget* window = gtk_widget_get_ancestor(
GTK_WIDGET(GetMainWindowHandle()), GTK_TYPE_WINDOW);
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 == FILE_DIALOG_OPEN_MULTIPLE) {
gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(dialog), TRUE);
} else if (mode == FILE_DIALOG_SAVE) {
gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER(dialog),
TRUE);
}
if (mode == FILE_DIALOG_SAVE && !base_name.empty()) {
gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(dialog),
base_name.c_str());
}
AddFiltersForAcceptTypes(GTK_FILE_CHOOSER(dialog), accept_types, true);
bool success = false;
if (gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT) {
if (mode == FILE_DIALOG_OPEN || mode == 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 == 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;
}
}
}
gtk_widget_destroy(dialog);
if (success)
callback->Continue(files);
else
callback->Cancel();
return true;
}
void ClientHandler::OnAddressChange(CefRefPtr<CefBrowser> browser,
CefRefPtr<CefFrame> frame,
const CefString& url) {
CEF_REQUIRE_UI_THREAD();
if (GetBrowserId() == browser->GetIdentifier() && frame->IsMain()) {
// Set the edit window text
std::string urlStr(url);
gtk_entry_set_text(GTK_ENTRY(edit_handle_), urlStr.c_str());
}
}
void ClientHandler::OnTitleChange(CefRefPtr<CefBrowser> browser,
const CefString& title) {
CEF_REQUIRE_UI_THREAD();
std::string titleStr(title);
if (!browser->IsPopup()) {
// Set the GTK parent window title.
GtkWidget* window = gtk_widget_get_ancestor(main_handle_,
GTK_TYPE_WINDOW);
gtk_window_set_title(GTK_WINDOW(window), titleStr.c_str());
} else {
// Retrieve the X11 display shared with Chromium.
::Display* display = cef_get_xdisplay();
DCHECK(display);
// Retrieve the X11 window handle for the browser.
::Window window = browser->GetHost()->GetWindowHandle();
DCHECK(window != kNullWindowHandle);
// Retrieve the atoms required by the below XChangeProperty call.
const char* kAtoms[] = {
"_NET_WM_NAME",
"UTF8_STRING"
};
Atom atoms[2];
int result = XInternAtoms(display, const_cast<char**>(kAtoms), 2, false,
atoms);
if (!result)
NOTREACHED();
// Set the window title.
XChangeProperty(display,
window,
atoms[0],
atoms[1],
8,
PropModeReplace,
reinterpret_cast<const unsigned char*>(titleStr.c_str()),
titleStr.size());
// TODO(erg): This is technically wrong. So XStoreName and friends expect
// this in Host Portable Character Encoding instead of UTF-8, which I
// believe is Compound Text. This shouldn't matter 90% of the time since
// this is the fallback to the UTF8 property above.
XStoreName(display, browser->GetHost()->GetWindowHandle(),
titleStr.c_str());
}
}
bool ClientHandler::OnJSDialog(CefRefPtr<CefBrowser> browser,
const CefString& origin_url,
const CefString& accept_lang,
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 = "JavaScript Alert";
break;
case JSDIALOGTYPE_CONFIRM:
buttons = GTK_BUTTONS_CANCEL;
gtk_message_type = GTK_MESSAGE_QUESTION;
title = "JavaScript Confirm";
break;
case JSDIALOGTYPE_PROMPT:
buttons = GTK_BUTTONS_CANCEL;
gtk_message_type = GTK_MESSAGE_QUESTION;
title = "JavaScript Prompt";
break;
}
js_dialog_callback_ = callback;
if (!origin_url.empty()) {
title += " - ";
title += origin_url.ToString();
}
GtkWidget* window = gtk_widget_get_ancestor(
GTK_WIDGET(GetMainWindowHandle()), GTK_TYPE_WINDOW);
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 ClientHandler::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(), CefString(), JSDIALOGTYPE_CONFIRM,
new_message_text, CefString(), callback, suppress_message);
}
void ClientHandler::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 ClientHandler::OnDialogResponse(GtkDialog* dialog,
gint response_id,
ClientHandler* 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);
}
void ClientHandler::SendNotification(NotificationType type) {
// TODO(port): Implement this method.
}
void ClientHandler::SetLoading(bool isLoading) {
CEF_REQUIRE_UI_THREAD();
if (isLoading)
gtk_widget_set_sensitive(GTK_WIDGET(stop_handle_), true);
else
gtk_widget_set_sensitive(GTK_WIDGET(stop_handle_), false);
}
void ClientHandler::SetNavState(bool canGoBack, bool canGoForward) {
CEF_REQUIRE_UI_THREAD();
if (canGoBack)
gtk_widget_set_sensitive(GTK_WIDGET(back_handle_), true);
else
gtk_widget_set_sensitive(GTK_WIDGET(back_handle_), false);
if (canGoForward)
gtk_widget_set_sensitive(GTK_WIDGET(forward_handle_), true);
else
gtk_widget_set_sensitive(GTK_WIDGET(forward_handle_), false);
}
std::string ClientHandler::GetDownloadPath(const std::string& file_name) {
return std::string();
}
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