diff options
Diffstat (limited to '')
| -rw-r--r-- | widget/gtk/nsPrintDialogGTK.cpp | 621 |
1 files changed, 621 insertions, 0 deletions
diff --git a/widget/gtk/nsPrintDialogGTK.cpp b/widget/gtk/nsPrintDialogGTK.cpp new file mode 100644 index 0000000000..3885a94c24 --- /dev/null +++ b/widget/gtk/nsPrintDialogGTK.cpp @@ -0,0 +1,621 @@ +/* -*- 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; +} |