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gecko-dev/widget/gtk/nsPrintDialogGTK.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <gtk/gtk.h>
#include <gtk/gtkunixprint.h>
#include <stdlib.h>
#include "mozilla/ArrayUtils.h"
#include "mozilla/Services.h"
#include "MozContainer.h"
#include "nsIPrintSettings.h"
#include "nsIWidget.h"
#include "nsPrintDialogGTK.h"
#include "nsPrintSettingsGTK.h"
#include "nsString.h"
#include "nsReadableUtils.h"
#include "nsIStringBundle.h"
#include "nsIPrintSettingsService.h"
#include "nsPIDOMWindow.h"
#include "nsPrintfCString.h"
#include "nsIGIOService.h"
#include "nsServiceManagerUtils.h"
#include "WidgetUtils.h"
#include "WidgetUtilsGtk.h"
#include "nsIObserverService.h"
// for gdk_x11_window_get_xid
#include <gdk/gdk.h>
#ifdef MOZ_X11
# include <gdk/gdkx.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <gio/gunixfdlist.h>
// for dlsym
#include <dlfcn.h>
#include "MainThreadUtils.h"
using namespace mozilla;
using namespace mozilla::widget;
static const char header_footer_tags[][4] = {"", "&T", "&U", "&D", "&P", "&PT"};
#define CUSTOM_VALUE_INDEX gint(ArrayLength(header_footer_tags))
static GtkWindow* get_gtk_window_for_nsiwidget(nsIWidget* widget) {
return GTK_WINDOW(widget->GetNativeData(NS_NATIVE_SHELLWIDGET));
}
static void ShowCustomDialog(GtkComboBox* changed_box, gpointer user_data) {
if (gtk_combo_box_get_active(changed_box) != CUSTOM_VALUE_INDEX) {
g_object_set_data(G_OBJECT(changed_box), "previous-active",
GINT_TO_POINTER(gtk_combo_box_get_active(changed_box)));
return;
}
GtkWindow* printDialog = GTK_WINDOW(user_data);
nsCOMPtr<nsIStringBundleService> bundleSvc =
do_GetService(NS_STRINGBUNDLE_CONTRACTID);
nsCOMPtr<nsIStringBundle> printBundle;
bundleSvc->CreateBundle("chrome://global/locale/printdialog.properties",
getter_AddRefs(printBundle));
nsAutoString intlString;
printBundle->GetStringFromName("headerFooterCustom", intlString);
GtkWidget* prompt_dialog = gtk_dialog_new_with_buttons(
NS_ConvertUTF16toUTF8(intlString).get(), printDialog,
(GtkDialogFlags)(GTK_DIALOG_MODAL), GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, nullptr);
gtk_dialog_set_default_response(GTK_DIALOG(prompt_dialog),
GTK_RESPONSE_ACCEPT);
gtk_dialog_set_alternative_button_order(
GTK_DIALOG(prompt_dialog), GTK_RESPONSE_ACCEPT, GTK_RESPONSE_REJECT, -1);
printBundle->GetStringFromName("customHeaderFooterPrompt", intlString);
GtkWidget* custom_label =
gtk_label_new(NS_ConvertUTF16toUTF8(intlString).get());
GtkWidget* custom_entry = gtk_entry_new();
GtkWidget* question_icon =
gtk_image_new_from_stock(GTK_STOCK_DIALOG_QUESTION, GTK_ICON_SIZE_DIALOG);
// To be convenient, prefill the textbox with the existing value, if any, and
// select it all so they can easily both edit it and type in a new one.
const char* current_text =
(const char*)g_object_get_data(G_OBJECT(changed_box), "custom-text");
if (current_text) {
gtk_entry_set_text(GTK_ENTRY(custom_entry), current_text);
gtk_editable_select_region(GTK_EDITABLE(custom_entry), 0, -1);
}
gtk_entry_set_activates_default(GTK_ENTRY(custom_entry), TRUE);
GtkWidget* custom_vbox = gtk_vbox_new(TRUE, 2);
gtk_box_pack_start(GTK_BOX(custom_vbox), custom_label, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(custom_vbox), custom_entry, FALSE, FALSE,
5); // Make entry 5px underneath label
GtkWidget* custom_hbox = gtk_hbox_new(FALSE, 2);
gtk_box_pack_start(GTK_BOX(custom_hbox), question_icon, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(custom_hbox), custom_vbox, FALSE, FALSE,
10); // Make question icon 10px away from content
gtk_container_set_border_width(GTK_CONTAINER(custom_hbox), 2);
gtk_widget_show_all(custom_hbox);
gtk_box_pack_start(
GTK_BOX(gtk_dialog_get_content_area(GTK_DIALOG(prompt_dialog))),
custom_hbox, FALSE, FALSE, 0);
gint diag_response = gtk_dialog_run(GTK_DIALOG(prompt_dialog));
if (diag_response == GTK_RESPONSE_ACCEPT) {
const gchar* response_text = gtk_entry_get_text(GTK_ENTRY(custom_entry));
g_object_set_data_full(G_OBJECT(changed_box), "custom-text",
strdup(response_text), (GDestroyNotify)free);
g_object_set_data(G_OBJECT(changed_box), "previous-active",
GINT_TO_POINTER(CUSTOM_VALUE_INDEX));
} else {
// Go back to the previous index
gint previous_active = GPOINTER_TO_INT(
g_object_get_data(G_OBJECT(changed_box), "previous-active"));
gtk_combo_box_set_active(changed_box, previous_active);
}
gtk_widget_destroy(prompt_dialog);
}
class nsPrintDialogWidgetGTK {
public:
nsPrintDialogWidgetGTK(nsPIDOMWindowOuter* aParent, bool aHaveSelection,
nsIPrintSettings* aPrintSettings);
~nsPrintDialogWidgetGTK() { gtk_widget_destroy(dialog); }
NS_ConvertUTF16toUTF8 GetUTF8FromBundle(const char* aKey);
gint Run();
nsresult ImportSettings(nsIPrintSettings* aNSSettings);
nsresult ExportSettings(nsIPrintSettings* aNSSettings);
private:
GtkWidget* dialog;
GtkWidget* shrink_to_fit_toggle;
GtkWidget* print_bg_colors_toggle;
GtkWidget* print_bg_images_toggle;
GtkWidget* selection_only_toggle;
GtkWidget* header_dropdown[3]; // {left, center, right}
GtkWidget* footer_dropdown[3];
nsCOMPtr<nsIStringBundle> printBundle;
bool useNativeSelection;
GtkWidget* ConstructHeaderFooterDropdown(const char16_t* currentString);
const char* OptionWidgetToString(GtkWidget* dropdown);
/* Code to copy between GTK and NS print settings structures.
* In the following,
* "Import" means to copy from NS to GTK
* "Export" means to copy from GTK to NS
*/
void ExportHeaderFooter(nsIPrintSettings* aNS);
};
nsPrintDialogWidgetGTK::nsPrintDialogWidgetGTK(nsPIDOMWindowOuter* aParent,
bool aHaveSelection,
nsIPrintSettings* aSettings) {
nsCOMPtr<nsIWidget> widget = WidgetUtils::DOMWindowToWidget(aParent);
NS_ASSERTION(widget, "Need a widget for dialog to be modal.");
GtkWindow* gtkParent = get_gtk_window_for_nsiwidget(widget);
NS_ASSERTION(gtkParent, "Need a GTK window for dialog to be modal.");
nsCOMPtr<nsIStringBundleService> bundleSvc =
do_GetService(NS_STRINGBUNDLE_CONTRACTID);
bundleSvc->CreateBundle("chrome://global/locale/printdialog.properties",
getter_AddRefs(printBundle));
dialog = gtk_print_unix_dialog_new(GetUTF8FromBundle("printTitleGTK").get(),
gtkParent);
gtk_print_unix_dialog_set_manual_capabilities(
GTK_PRINT_UNIX_DIALOG(dialog),
GtkPrintCapabilities(
GTK_PRINT_CAPABILITY_COPIES | GTK_PRINT_CAPABILITY_COLLATE |
GTK_PRINT_CAPABILITY_REVERSE | GTK_PRINT_CAPABILITY_SCALE |
GTK_PRINT_CAPABILITY_GENERATE_PDF));
// The vast majority of magic numbers in this widget construction are padding.
// e.g. for the set_border_width below, 12px matches that of just about every
// other window.
GtkWidget* custom_options_tab = gtk_vbox_new(FALSE, 0);
gtk_container_set_border_width(GTK_CONTAINER(custom_options_tab), 12);
GtkWidget* tab_label =
gtk_label_new(GetUTF8FromBundle("optionsTabLabelGTK").get());
// Check buttons for shrink-to-fit and print selection
GtkWidget* check_buttons_container = gtk_vbox_new(TRUE, 2);
shrink_to_fit_toggle = gtk_check_button_new_with_mnemonic(
GetUTF8FromBundle("shrinkToFit").get());
gtk_box_pack_start(GTK_BOX(check_buttons_container), shrink_to_fit_toggle,
FALSE, FALSE, 0);
// GTK+2.18 and above allow us to add a "Selection" option to the main
// settings screen, rather than adding an option on a custom tab like we must
// do on older versions.
if (gtk_major_version > 2 ||
(gtk_major_version == 2 && gtk_minor_version >= 18)) {
useNativeSelection = true;
g_object_set(dialog, "support-selection", TRUE, "has-selection",
aHaveSelection, "embed-page-setup", TRUE, nullptr);
} else {
useNativeSelection = false;
selection_only_toggle = gtk_check_button_new_with_mnemonic(
GetUTF8FromBundle("selectionOnly").get());
gtk_widget_set_sensitive(selection_only_toggle, aHaveSelection);
gtk_box_pack_start(GTK_BOX(check_buttons_container), selection_only_toggle,
FALSE, FALSE, 0);
}
// Check buttons for printing background
GtkWidget* appearance_buttons_container = gtk_vbox_new(TRUE, 2);
print_bg_colors_toggle = gtk_check_button_new_with_mnemonic(
GetUTF8FromBundle("printBGColors").get());
print_bg_images_toggle = gtk_check_button_new_with_mnemonic(
GetUTF8FromBundle("printBGImages").get());
gtk_box_pack_start(GTK_BOX(appearance_buttons_container),
print_bg_colors_toggle, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(appearance_buttons_container),
print_bg_images_toggle, FALSE, FALSE, 0);
// "Appearance" options label, bold and center-aligned
GtkWidget* appearance_label = gtk_label_new(nullptr);
char* pangoMarkup = g_markup_printf_escaped(
"<b>%s</b>", GetUTF8FromBundle("printBGOptions").get());
gtk_label_set_markup(GTK_LABEL(appearance_label), pangoMarkup);
g_free(pangoMarkup);
gtk_misc_set_alignment(GTK_MISC(appearance_label), 0, 0);
GtkWidget* appearance_container = gtk_alignment_new(0, 0, 0, 0);
gtk_alignment_set_padding(GTK_ALIGNMENT(appearance_container), 8, 0, 12, 0);
gtk_container_add(GTK_CONTAINER(appearance_container),
appearance_buttons_container);
GtkWidget* appearance_vertical_squasher = gtk_vbox_new(FALSE, 0);
gtk_box_pack_start(GTK_BOX(appearance_vertical_squasher), appearance_label,
FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(appearance_vertical_squasher),
appearance_container, FALSE, FALSE, 0);
// "Header & Footer" options label, bold and center-aligned
GtkWidget* header_footer_label = gtk_label_new(nullptr);
pangoMarkup = g_markup_printf_escaped(
"<b>%s</b>", GetUTF8FromBundle("headerFooter").get());
gtk_label_set_markup(GTK_LABEL(header_footer_label), pangoMarkup);
g_free(pangoMarkup);
gtk_misc_set_alignment(GTK_MISC(header_footer_label), 0, 0);
GtkWidget* header_footer_container = gtk_alignment_new(0, 0, 0, 0);
gtk_alignment_set_padding(GTK_ALIGNMENT(header_footer_container), 8, 0, 12,
0);
// --- Table for making the header and footer options ---
GtkWidget* header_footer_table = gtk_table_new(3, 3, FALSE); // 3x3 table
nsString header_footer_str[3];
aSettings->GetHeaderStrLeft(header_footer_str[0]);
aSettings->GetHeaderStrCenter(header_footer_str[1]);
aSettings->GetHeaderStrRight(header_footer_str[2]);
for (unsigned int i = 0; i < ArrayLength(header_dropdown); i++) {
header_dropdown[i] =
ConstructHeaderFooterDropdown(header_footer_str[i].get());
// Those 4 magic numbers in the middle provide the position in the table.
// The last two numbers mean 2 px padding on every side.
gtk_table_attach(GTK_TABLE(header_footer_table), header_dropdown[i], i,
(i + 1), 0, 1, (GtkAttachOptions)0, (GtkAttachOptions)0, 2,
2);
}
const char labelKeys[][7] = {"left", "center", "right"};
for (unsigned int i = 0; i < ArrayLength(labelKeys); i++) {
gtk_table_attach(GTK_TABLE(header_footer_table),
gtk_label_new(GetUTF8FromBundle(labelKeys[i]).get()), i,
(i + 1), 1, 2, (GtkAttachOptions)0, (GtkAttachOptions)0, 2,
2);
}
aSettings->GetFooterStrLeft(header_footer_str[0]);
aSettings->GetFooterStrCenter(header_footer_str[1]);
aSettings->GetFooterStrRight(header_footer_str[2]);
for (unsigned int i = 0; i < ArrayLength(footer_dropdown); i++) {
footer_dropdown[i] =
ConstructHeaderFooterDropdown(header_footer_str[i].get());
gtk_table_attach(GTK_TABLE(header_footer_table), footer_dropdown[i], i,
(i + 1), 2, 3, (GtkAttachOptions)0, (GtkAttachOptions)0, 2,
2);
}
// ---
gtk_container_add(GTK_CONTAINER(header_footer_container),
header_footer_table);
GtkWidget* header_footer_vertical_squasher = gtk_vbox_new(FALSE, 0);
gtk_box_pack_start(GTK_BOX(header_footer_vertical_squasher),
header_footer_label, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(header_footer_vertical_squasher),
header_footer_container, FALSE, FALSE, 0);
// Construction of everything
gtk_box_pack_start(GTK_BOX(custom_options_tab), check_buttons_container,
FALSE, FALSE, 10); // 10px padding
gtk_box_pack_start(GTK_BOX(custom_options_tab), appearance_vertical_squasher,
FALSE, FALSE, 10);
gtk_box_pack_start(GTK_BOX(custom_options_tab),
header_footer_vertical_squasher, FALSE, FALSE, 0);
gtk_print_unix_dialog_add_custom_tab(GTK_PRINT_UNIX_DIALOG(dialog),
custom_options_tab, tab_label);
gtk_widget_show_all(custom_options_tab);
}
NS_ConvertUTF16toUTF8 nsPrintDialogWidgetGTK::GetUTF8FromBundle(
const char* aKey) {
nsAutoString intlString;
printBundle->GetStringFromName(aKey, intlString);
return NS_ConvertUTF16toUTF8(
intlString); // Return the actual object so we don't lose reference
}
const char* nsPrintDialogWidgetGTK::OptionWidgetToString(GtkWidget* dropdown) {
gint index = gtk_combo_box_get_active(GTK_COMBO_BOX(dropdown));
NS_ASSERTION(index <= CUSTOM_VALUE_INDEX,
"Index of dropdown is higher than expected!");
if (index == CUSTOM_VALUE_INDEX)
return (const char*)g_object_get_data(G_OBJECT(dropdown), "custom-text");
return header_footer_tags[index];
}
gint nsPrintDialogWidgetGTK::Run() {
const gint response = gtk_dialog_run(GTK_DIALOG(dialog));
gtk_widget_hide(dialog);
return response;
}
void nsPrintDialogWidgetGTK::ExportHeaderFooter(nsIPrintSettings* aNS) {
const char* header_footer_str;
header_footer_str = OptionWidgetToString(header_dropdown[0]);
aNS->SetHeaderStrLeft(NS_ConvertUTF8toUTF16(header_footer_str));
header_footer_str = OptionWidgetToString(header_dropdown[1]);
aNS->SetHeaderStrCenter(NS_ConvertUTF8toUTF16(header_footer_str));
header_footer_str = OptionWidgetToString(header_dropdown[2]);
aNS->SetHeaderStrRight(NS_ConvertUTF8toUTF16(header_footer_str));
header_footer_str = OptionWidgetToString(footer_dropdown[0]);
aNS->SetFooterStrLeft(NS_ConvertUTF8toUTF16(header_footer_str));
header_footer_str = OptionWidgetToString(footer_dropdown[1]);
aNS->SetFooterStrCenter(NS_ConvertUTF8toUTF16(header_footer_str));
header_footer_str = OptionWidgetToString(footer_dropdown[2]);
aNS->SetFooterStrRight(NS_ConvertUTF8toUTF16(header_footer_str));
}
nsresult nsPrintDialogWidgetGTK::ImportSettings(nsIPrintSettings* aNSSettings) {
MOZ_ASSERT(aNSSettings, "aSettings must not be null");
NS_ENSURE_TRUE(aNSSettings, NS_ERROR_FAILURE);
nsCOMPtr<nsPrintSettingsGTK> aNSSettingsGTK(do_QueryInterface(aNSSettings));
if (!aNSSettingsGTK) return NS_ERROR_FAILURE;
GtkPrintSettings* settings = aNSSettingsGTK->GetGtkPrintSettings();
GtkPageSetup* setup = aNSSettingsGTK->GetGtkPageSetup();
// Set our custom fields:
bool geckoBool;
aNSSettings->GetShrinkToFit(&geckoBool);
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(shrink_to_fit_toggle),
geckoBool);
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(print_bg_colors_toggle),
aNSSettings->GetPrintBGColors());
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(print_bg_images_toggle),
aNSSettings->GetPrintBGImages());
// Temporarily set the pages-per-sheet on the GtkPrintSettings:
int32_t pagesPerSide;
aNSSettings->GetNumPagesPerSheet(&pagesPerSide);
gtk_print_settings_set_number_up(settings, pagesPerSide);
gtk_print_unix_dialog_set_settings(GTK_PRINT_UNIX_DIALOG(dialog), settings);
gtk_print_unix_dialog_set_page_setup(GTK_PRINT_UNIX_DIALOG(dialog), setup);
return NS_OK;
}
nsresult nsPrintDialogWidgetGTK::ExportSettings(nsIPrintSettings* aNSSettings) {
MOZ_ASSERT(aNSSettings, "aSettings must not be null");
NS_ENSURE_TRUE(aNSSettings, NS_ERROR_FAILURE);
GtkPrintSettings* settings =
gtk_print_unix_dialog_get_settings(GTK_PRINT_UNIX_DIALOG(dialog));
GtkPageSetup* setup =
gtk_print_unix_dialog_get_page_setup(GTK_PRINT_UNIX_DIALOG(dialog));
GtkPrinter* printer =
gtk_print_unix_dialog_get_selected_printer(GTK_PRINT_UNIX_DIALOG(dialog));
if (settings && setup && printer) {
ExportHeaderFooter(aNSSettings);
aNSSettings->SetOutputFormat(nsIPrintSettings::kOutputFormatNative);
// Print-to-file is true by default. This must be turned off or else
// printing won't occur! (We manually copy the spool file when this flag is
// set, because we love our embedders) Even if it is print-to-file in GTK's
// case, GTK does The Right Thing when we send the job.
aNSSettings->SetOutputDestination(
nsIPrintSettings::kOutputDestinationPrinter);
aNSSettings->SetShrinkToFit(
gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(shrink_to_fit_toggle)));
aNSSettings->SetPrintBGColors(gtk_toggle_button_get_active(
GTK_TOGGLE_BUTTON(print_bg_colors_toggle)));
aNSSettings->SetPrintBGImages(gtk_toggle_button_get_active(
GTK_TOGGLE_BUTTON(print_bg_images_toggle)));
// Move any pages-per-sheet value from the GtkPrintSettings to our
// nsIPrintSettings. (We handle pages-per-sheet internally and don't want
// the native Linux printing code to doubly apply that value!)
int32_t pagesPerSide = gtk_print_settings_get_number_up(settings);
gtk_print_settings_set_number_up(settings, 1);
aNSSettings->SetNumPagesPerSheet(pagesPerSide);
// Try to save native settings in the session object
nsCOMPtr<nsPrintSettingsGTK> aNSSettingsGTK(do_QueryInterface(aNSSettings));
if (aNSSettingsGTK) {
aNSSettingsGTK->SetGtkPrintSettings(settings);
aNSSettingsGTK->SetGtkPageSetup(setup);
aNSSettingsGTK->SetGtkPrinter(printer);
bool printSelectionOnly;
if (useNativeSelection) {
_GtkPrintPages pageSetting =
(_GtkPrintPages)gtk_print_settings_get_print_pages(settings);
printSelectionOnly = (pageSetting == _GTK_PRINT_PAGES_SELECTION);
} else {
printSelectionOnly = gtk_toggle_button_get_active(
GTK_TOGGLE_BUTTON(selection_only_toggle));
}
aNSSettingsGTK->SetPrintSelectionOnly(printSelectionOnly);
}
}
if (settings) g_object_unref(settings);
return NS_OK;
}
GtkWidget* nsPrintDialogWidgetGTK::ConstructHeaderFooterDropdown(
const char16_t* currentString) {
GtkWidget* dropdown = gtk_combo_box_text_new();
const char hf_options[][22] = {"headerFooterBlank", "headerFooterTitle",
"headerFooterURL", "headerFooterDate",
"headerFooterPage", "headerFooterPageTotal",
"headerFooterCustom"};
for (unsigned int i = 0; i < ArrayLength(hf_options); i++) {
gtk_combo_box_text_append(GTK_COMBO_BOX_TEXT(dropdown), nullptr,
GetUTF8FromBundle(hf_options[i]).get());
}
bool shouldBeCustom = true;
NS_ConvertUTF16toUTF8 currentStringUTF8(currentString);
for (unsigned int i = 0; i < ArrayLength(header_footer_tags); i++) {
if (!strcmp(currentStringUTF8.get(), header_footer_tags[i])) {
gtk_combo_box_set_active(GTK_COMBO_BOX(dropdown), i);
g_object_set_data(G_OBJECT(dropdown), "previous-active",
GINT_TO_POINTER(i));
shouldBeCustom = false;
break;
}
}
if (shouldBeCustom) {
gtk_combo_box_set_active(GTK_COMBO_BOX(dropdown), CUSTOM_VALUE_INDEX);
g_object_set_data(G_OBJECT(dropdown), "previous-active",
GINT_TO_POINTER(CUSTOM_VALUE_INDEX));
char* custom_string = strdup(currentStringUTF8.get());
g_object_set_data_full(G_OBJECT(dropdown), "custom-text", custom_string,
(GDestroyNotify)free);
}
g_signal_connect(dropdown, "changed", (GCallback)ShowCustomDialog, dialog);
return dropdown;
}
NS_IMPL_ISUPPORTS(nsPrintDialogServiceGTK, nsIPrintDialogService)
nsPrintDialogServiceGTK::nsPrintDialogServiceGTK() = default;
nsPrintDialogServiceGTK::~nsPrintDialogServiceGTK() = default;
NS_IMETHODIMP
nsPrintDialogServiceGTK::Init() { return NS_OK; }
NS_IMETHODIMP
nsPrintDialogServiceGTK::ShowPrintDialog(mozIDOMWindowProxy* aParent,
bool aHaveSelection,
nsIPrintSettings* aSettings) {
MOZ_ASSERT(aParent, "aParent must not be null");
MOZ_ASSERT(aSettings, "aSettings must not be null");
nsPrintDialogWidgetGTK printDialog(nsPIDOMWindowOuter::From(aParent),
aHaveSelection, aSettings);
nsresult rv = printDialog.ImportSettings(aSettings);
NS_ENSURE_SUCCESS(rv, rv);
const gint response = printDialog.Run();
// Handle the result
switch (response) {
case GTK_RESPONSE_OK: // Proceed
rv = printDialog.ExportSettings(aSettings);
break;
case GTK_RESPONSE_CANCEL:
case GTK_RESPONSE_CLOSE:
case GTK_RESPONSE_DELETE_EVENT:
case GTK_RESPONSE_NONE:
rv = NS_ERROR_ABORT;
break;
case GTK_RESPONSE_APPLY: // Print preview
default:
NS_WARNING("Unexpected response");
rv = NS_ERROR_ABORT;
}
return rv;
}
NS_IMETHODIMP
nsPrintDialogServiceGTK::ShowPageSetupDialog(mozIDOMWindowProxy* aParent,
nsIPrintSettings* aNSSettings) {
MOZ_ASSERT(aParent, "aParent must not be null");
MOZ_ASSERT(aNSSettings, "aSettings must not be null");
NS_ENSURE_TRUE(aNSSettings, NS_ERROR_FAILURE);
nsCOMPtr<nsIWidget> widget =
WidgetUtils::DOMWindowToWidget(nsPIDOMWindowOuter::From(aParent));
NS_ASSERTION(widget, "Need a widget for dialog to be modal.");
GtkWindow* gtkParent = get_gtk_window_for_nsiwidget(widget);
NS_ASSERTION(gtkParent, "Need a GTK window for dialog to be modal.");
nsCOMPtr<nsPrintSettingsGTK> aNSSettingsGTK(do_QueryInterface(aNSSettings));
if (!aNSSettingsGTK) return NS_ERROR_FAILURE;
// We need to init the prefs here because aNSSettings in its current form is a
// dummy in both uses of the word
nsCOMPtr<nsIPrintSettingsService> psService =
do_GetService("@mozilla.org/gfx/printsettings-service;1");
if (psService) {
nsString printName;
aNSSettings->GetPrinterName(printName);
if (printName.IsVoid()) {
psService->GetLastUsedPrinterName(printName);
aNSSettings->SetPrinterName(printName);
}
psService->InitPrintSettingsFromPrefs(aNSSettings, true,
nsIPrintSettings::kInitSaveAll);
}
// Frustratingly, gtk_print_run_page_setup_dialog doesn't tell us whether
// the user cancelled or confirmed the dialog! So to avoid needlessly
// refreshing the preview when Page Setup was cancelled, we compare the
// serializations of old and new settings; if they're the same, bail out.
GtkPrintSettings* gtkSettings = aNSSettingsGTK->GetGtkPrintSettings();
GtkPageSetup* oldPageSetup = aNSSettingsGTK->GetGtkPageSetup();
GKeyFile* oldKeyFile = g_key_file_new();
gtk_page_setup_to_key_file(oldPageSetup, oldKeyFile, nullptr);
gsize oldLength;
gchar* oldData = g_key_file_to_data(oldKeyFile, &oldLength, nullptr);
g_key_file_free(oldKeyFile);
GtkPageSetup* newPageSetup =
gtk_print_run_page_setup_dialog(gtkParent, oldPageSetup, gtkSettings);
GKeyFile* newKeyFile = g_key_file_new();
gtk_page_setup_to_key_file(newPageSetup, newKeyFile, nullptr);
gsize newLength;
gchar* newData = g_key_file_to_data(newKeyFile, &newLength, nullptr);
g_key_file_free(newKeyFile);
bool unchanged =
(oldLength == newLength && !memcmp(oldData, newData, oldLength));
g_free(oldData);
g_free(newData);
if (unchanged) {
g_object_unref(newPageSetup);
return NS_ERROR_ABORT;
}
aNSSettingsGTK->SetGtkPageSetup(newPageSetup);
// Now newPageSetup has a refcount of 2 (SetGtkPageSetup will addref), put it
// to 1 so if this gets replaced we don't leak.
g_object_unref(newPageSetup);
if (psService)
psService->MaybeSavePrintSettingsToPrefs(
aNSSettings, nsIPrintSettings::kInitSaveOrientation |
nsIPrintSettings::kInitSavePaperSize |
nsIPrintSettings::kInitSaveUnwriteableMargins);
return NS_OK;
}
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