diff options
Diffstat (limited to 'vcl/unx/gtk3/gtkobject.cxx')
| -rw-r--r-- | vcl/unx/gtk3/gtkobject.cxx | 611 |
1 files changed, 611 insertions, 0 deletions
diff --git a/vcl/unx/gtk3/gtkobject.cxx b/vcl/unx/gtk3/gtkobject.cxx new file mode 100644 index 0000000000..bd553137a8 --- /dev/null +++ b/vcl/unx/gtk3/gtkobject.cxx @@ -0,0 +1,611 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * 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/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <unx/gtk/gtkbackend.hxx> +#include <unx/gtk/gtkobject.hxx> +#include <unx/gtk/gtkframe.hxx> +#include <unx/gtk/gtkdata.hxx> +#include <vcl/event.hxx> + +GtkSalObjectBase::GtkSalObjectBase(GtkSalFrame* pParent) + : m_pSocket(nullptr) + , m_pParent(pParent) + , m_pRegion(nullptr) +{ +} + +GtkSalObject::GtkSalObject(GtkSalFrame* pParent, bool bShow) + : GtkSalObjectBase(pParent) +{ + if (!m_pParent) + return; + + // our plug window + m_pSocket = gtk_grid_new(); + Show( bShow ); + // insert into container + gtk_fixed_put( pParent->getFixedContainer(), + m_pSocket, + 0, 0 ); + + Init(); + + g_signal_connect( G_OBJECT(m_pSocket), "destroy", G_CALLBACK(signalDestroy), this ); + + // #i59255# necessary due to sync effects with java child windows + pParent->Flush(); +} + +void GtkSalObjectBase::Init() +{ + // realize so we can get a window id + gtk_widget_realize( m_pSocket ); + + // system data + // tdf#139609 deliberately defer using m_pParent->GetNativeWindowHandle(m_pSocket)) to set m_aSystemData.aWindow + // unless its explicitly needed + m_aSystemData.aShellWindow = reinterpret_cast<sal_IntPtr>(this); + m_aSystemData.pSalFrame = nullptr; + m_aSystemData.pWidget = m_pSocket; + m_aSystemData.nScreen = m_pParent->getXScreenNumber().getXScreen(); + m_aSystemData.toolkit = SystemEnvData::Toolkit::Gtk; +#if !GTK_CHECK_VERSION(4, 0, 0) + GdkScreen* pScreen = gtk_widget_get_screen(m_pParent->getWindow()); + GdkVisual* pVisual = gdk_screen_get_system_visual(pScreen); + +#if defined(GDK_WINDOWING_X11) + GdkDisplay *pDisplay = GtkSalFrame::getGdkDisplay(); + if (DLSYM_GDK_IS_X11_DISPLAY(pDisplay)) + { + m_aSystemData.pDisplay = gdk_x11_display_get_xdisplay(pDisplay); + m_aSystemData.pVisual = gdk_x11_visual_get_xvisual(pVisual); + m_aSystemData.platform = SystemEnvData::Platform::Xcb; + } +#endif +#if defined(GDK_WINDOWING_WAYLAND) + if (DLSYM_GDK_IS_WAYLAND_DISPLAY(pDisplay)) + { + m_aSystemData.pDisplay = gdk_wayland_display_get_wl_display(pDisplay); + m_aSystemData.platform = SystemEnvData::Platform::Wayland; + } +#endif + + g_signal_connect( G_OBJECT(m_pSocket), "button-press-event", G_CALLBACK(signalButton), this ); + g_signal_connect( G_OBJECT(m_pSocket), "button-release-event", G_CALLBACK(signalButton), this ); + g_signal_connect( G_OBJECT(m_pSocket), "focus-in-event", G_CALLBACK(signalFocus), this ); + g_signal_connect( G_OBJECT(m_pSocket), "focus-out-event", G_CALLBACK(signalFocus), this ); +#endif +} + +GtkSalObjectBase::~GtkSalObjectBase() +{ + if( m_pRegion ) + { + cairo_region_destroy( m_pRegion ); + } +} + +GtkSalObject::~GtkSalObject() +{ + if( !m_pSocket ) + return; + +#if GTK_CHECK_VERSION(4, 0, 0) + gtk_widget_unparent(m_pSocket); +#else + // remove socket from parent frame's fixed container + gtk_container_remove( GTK_CONTAINER(gtk_widget_get_parent(m_pSocket)), + m_pSocket ); + // get rid of the socket + // actually the gtk_container_remove should let the ref count + // of the socket sink to 0 and destroy it (see signalDestroy) + // this is just a sanity check + if( m_pSocket ) + gtk_widget_destroy( m_pSocket ); +#endif +} + +void GtkSalObject::ResetClipRegion() +{ +#if !GTK_CHECK_VERSION(4, 0, 0) + if( m_pSocket ) + gdk_window_shape_combine_region( widget_get_surface(m_pSocket), nullptr, 0, 0 ); +#endif +} + +void GtkSalObjectBase::BeginSetClipRegion( sal_uInt32 ) +{ + if (m_pRegion) + cairo_region_destroy(m_pRegion); + m_pRegion = cairo_region_create(); +} + +void GtkSalObjectBase::UnionClipRegion( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight ) +{ + GdkRectangle aRect; + aRect.x = nX; + aRect.y = nY; + aRect.width = nWidth; + aRect.height = nHeight; + + cairo_region_union_rectangle( m_pRegion, &aRect ); +} + +void GtkSalObject::EndSetClipRegion() +{ +#if !GTK_CHECK_VERSION(4, 0, 0) + if( m_pSocket ) + gdk_window_shape_combine_region( widget_get_surface(m_pSocket), m_pRegion, 0, 0 ); +#endif +} + +void GtkSalObject::SetPosSize(tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight) +{ + if (m_pSocket) + { + GtkFixed* pContainer = GTK_FIXED(gtk_widget_get_parent(m_pSocket)); + gtk_fixed_move( pContainer, m_pSocket, nX, nY ); + gtk_widget_set_size_request( m_pSocket, nWidth, nHeight ); +#if !GTK_CHECK_VERSION(4, 0, 0) + m_pParent->nopaint_container_resize_children(GTK_CONTAINER(pContainer)); +#endif + } +} + +void GtkSalObject::Reparent(SalFrame* pFrame) +{ + GtkSalFrame* pNewParent = static_cast<GtkSalFrame*>(pFrame); + if (m_pSocket) + { + GtkFixed* pContainer = GTK_FIXED(gtk_widget_get_parent(m_pSocket)); + +#if !GTK_CHECK_VERSION(4, 0, 0) + gint nX(0), nY(0); + gtk_container_child_get(GTK_CONTAINER(pContainer), m_pSocket, + "x", &nX, + "y", &nY, + nullptr); +#else + double nX(0), nY(0); + gtk_fixed_get_child_position(pContainer, m_pSocket, &nX, &nY); +#endif + + g_object_ref(m_pSocket); +#if !GTK_CHECK_VERSION(4, 0, 0) + gtk_container_remove(GTK_CONTAINER(pContainer), m_pSocket); +#else + gtk_fixed_remove(pContainer, m_pSocket); +#endif + + gtk_fixed_put(pNewParent->getFixedContainer(), + m_pSocket, + nX, nY); + + g_object_unref(m_pSocket); + } + m_pParent = pNewParent; +} + +void GtkSalObject::Show( bool bVisible ) +{ + if( m_pSocket ) + { + if( bVisible ) + gtk_widget_show(m_pSocket); + else + gtk_widget_hide(m_pSocket); + } +} + +Size GtkSalObjectBase::GetOptimalSize() const +{ + if (m_pSocket) + { + bool bVisible = gtk_widget_get_visible(m_pSocket); + if (!bVisible) + gtk_widget_set_visible(m_pSocket, true); + + // Undo SetPosSize before getting its preferred size + gint width(-1), height(-1); + gtk_widget_get_size_request(m_pSocket, &width, &height); + gtk_widget_set_size_request(m_pSocket, -1, -1); + + GtkRequisition size; + gtk_widget_get_preferred_size(m_pSocket, nullptr, &size); + + // Restore SetPosSize size + gtk_widget_set_size_request(m_pSocket, width, height); + + if (!bVisible) + gtk_widget_set_visible(m_pSocket, false); + return Size(size.width, size.height); + } + return Size(); +} + +const SystemEnvData* GtkSalObjectBase::GetSystemData() const +{ + return &m_aSystemData; +} + +#if !GTK_CHECK_VERSION(4, 0, 0) +gboolean GtkSalObjectBase::signalButton( GtkWidget*, GdkEventButton* pEvent, gpointer object ) +{ + GtkSalObjectBase* pThis = static_cast<GtkSalObject*>(object); + + if( pEvent->type == GDK_BUTTON_PRESS ) + { + pThis->CallCallback( SalObjEvent::ToTop ); + } + + return FALSE; +} + +gboolean GtkSalObjectBase::signalFocus( GtkWidget*, GdkEventFocus* pEvent, gpointer object ) +{ + GtkSalObjectBase* pThis = static_cast<GtkSalObject*>(object); + + pThis->CallCallback( pEvent->in ? SalObjEvent::GetFocus : SalObjEvent::LoseFocus ); + + return FALSE; +} +#endif + +void GtkSalObject::signalDestroy( GtkWidget* pObj, gpointer object ) +{ + GtkSalObject* pThis = static_cast<GtkSalObject*>(object); + if( pObj == pThis->m_pSocket ) + { + pThis->m_pSocket = nullptr; + } +} + +void GtkSalObjectBase::SetForwardKey( bool bEnable ) +{ +#if !GTK_CHECK_VERSION(4, 0, 0) + if( bEnable ) + gtk_widget_add_events( GTK_WIDGET( m_pSocket ), GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK ); + else + gtk_widget_set_events( GTK_WIDGET( m_pSocket ), ~(GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK) & gtk_widget_get_events( GTK_WIDGET( m_pSocket ) ) ); +#else + (void)bEnable; +#endif +} + +GtkSalObjectWidgetClip::GtkSalObjectWidgetClip(GtkSalFrame* pParent, bool bShow) + : GtkSalObjectBase(pParent) + , m_pScrolledWindow(nullptr) + , m_pViewPort(nullptr) + , m_pBgCssProvider(nullptr) +{ + if( !pParent ) + return; + +#if !GTK_CHECK_VERSION(4, 0, 0) + m_pScrolledWindow = gtk_scrolled_window_new(nullptr, nullptr); + g_signal_connect(m_pScrolledWindow, "scroll-event", G_CALLBACK(signalScroll), this); +#else + m_pScrolledWindow = gtk_scrolled_window_new(); + GtkEventController* pScrollController = gtk_event_controller_scroll_new(GTK_EVENT_CONTROLLER_SCROLL_BOTH_AXES); + g_signal_connect(pScrollController, "scroll", G_CALLBACK(signalScroll), this); + gtk_widget_add_controller(m_pScrolledWindow, pScrollController); +#endif + gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(m_pScrolledWindow), + GTK_POLICY_EXTERNAL, GTK_POLICY_EXTERNAL); + + // insert into container + gtk_fixed_put( pParent->getFixedContainer(), + m_pScrolledWindow, + 0, 0 ); + + // deliberately without adjustments to avoid gtk's auto adjustment on changing focus + m_pViewPort = gtk_viewport_new(nullptr, nullptr); + + // force in a fake background of a suitable color + SetViewPortBackground(); + + ImplGetDefaultWindow()->AddEventListener(LINK(this, GtkSalObjectWidgetClip, SettingsChangedHdl)); + +#if !GTK_CHECK_VERSION(4, 0, 0) + gtk_container_add(GTK_CONTAINER(m_pScrolledWindow), m_pViewPort); +#else + gtk_scrolled_window_set_child(GTK_SCROLLED_WINDOW(m_pScrolledWindow), m_pViewPort); +#endif + gtk_widget_show(m_pViewPort); + + // our plug window + m_pSocket = gtk_grid_new(); +#if !GTK_CHECK_VERSION(4, 0, 0) + gtk_container_add(GTK_CONTAINER(m_pViewPort), m_pSocket); +#else + gtk_viewport_set_child(GTK_VIEWPORT(m_pViewPort), m_pSocket); +#endif + gtk_widget_show(m_pSocket); + + Show(bShow); + + Init(); + + g_signal_connect( G_OBJECT(m_pSocket), "destroy", G_CALLBACK(signalDestroy), this ); +} + +// force in a fake background of a suitable color +void GtkSalObjectWidgetClip::SetViewPortBackground() +{ + GtkStyleContext *pWidgetContext = gtk_widget_get_style_context(m_pViewPort); + if (m_pBgCssProvider) + gtk_style_context_remove_provider(pWidgetContext, GTK_STYLE_PROVIDER(m_pBgCssProvider)); + m_pBgCssProvider = gtk_css_provider_new(); + OUString sColor = Application::GetSettings().GetStyleSettings().GetDialogColor().AsRGBHexString(); + OUString aBuffer = "* { background-color: #" + sColor + "; }"; + OString aResult = OUStringToOString(aBuffer, RTL_TEXTENCODING_UTF8); + css_provider_load_from_data(m_pBgCssProvider, aResult.getStr(), aResult.getLength()); + gtk_style_context_add_provider(pWidgetContext, GTK_STYLE_PROVIDER(m_pBgCssProvider), + GTK_STYLE_PROVIDER_PRIORITY_APPLICATION); +} + +IMPL_LINK(GtkSalObjectWidgetClip, SettingsChangedHdl, VclWindowEvent&, rEvent, void) +{ + if (rEvent.GetId() != VclEventId::WindowDataChanged) + return; + + DataChangedEvent* pData = static_cast<DataChangedEvent*>(rEvent.GetData()); + if (pData->GetType() == DataChangedEventType::SETTINGS) + SetViewPortBackground(); +} + +GtkSalObjectWidgetClip::~GtkSalObjectWidgetClip() +{ + ImplGetDefaultWindow()->RemoveEventListener(LINK(this, GtkSalObjectWidgetClip, SettingsChangedHdl)); + + if( !m_pSocket ) + return; + + // remove socket from parent frame's fixed container +#if !GTK_CHECK_VERSION(4, 0, 0) + gtk_container_remove( GTK_CONTAINER(gtk_widget_get_parent(m_pScrolledWindow)), + m_pScrolledWindow ); + + // get rid of the socket + // actually the gtk_container_remove should let the ref count + // of the socket sink to 0 and destroy it (see signalDestroy) + // this is just a sanity check + if( m_pScrolledWindow ) + gtk_widget_destroy( m_pScrolledWindow ); +#else + gtk_fixed_remove(GTK_FIXED(gtk_widget_get_parent(m_pScrolledWindow)), + m_pScrolledWindow); +#endif +} + +void GtkSalObjectWidgetClip::ResetClipRegion() +{ + m_aClipRect = tools::Rectangle(); + ApplyClipRegion(); +} + +void GtkSalObjectWidgetClip::EndSetClipRegion() +{ + int nRects = cairo_region_num_rectangles(m_pRegion); + assert(nRects == 0 || nRects == 1); + if (nRects == 0) + m_aClipRect = tools::Rectangle(); + else + { + cairo_rectangle_int_t rectangle; + cairo_region_get_rectangle(m_pRegion, 0, &rectangle); + m_aClipRect = tools::Rectangle(Point(rectangle.x, rectangle.y), Size(rectangle.width, rectangle.height)); + } + ApplyClipRegion(); +} + +void GtkSalObjectWidgetClip::ApplyClipRegion() +{ + if( !m_pSocket ) + return; + + GtkFixed* pContainer = GTK_FIXED(gtk_widget_get_parent(m_pScrolledWindow)); + + GtkAllocation allocation; + allocation.x = m_aRect.Left() + m_aClipRect.Left(); + allocation.y = m_aRect.Top() + m_aClipRect.Top(); + if (m_aClipRect.IsEmpty()) + { + allocation.width = m_aRect.GetWidth(); + allocation.height = m_aRect.GetHeight(); + } + else + { + allocation.width = m_aClipRect.GetWidth(); + allocation.height = m_aClipRect.GetHeight(); + } + + if (AllSettings::GetLayoutRTL()) + { + GtkAllocation aParentAllocation; + gtk_widget_get_allocation(GTK_WIDGET(pContainer), &aParentAllocation); + gtk_fixed_move(pContainer, m_pScrolledWindow, aParentAllocation.width - allocation.width - 1 - allocation.x, allocation.y); + } + else + gtk_fixed_move(pContainer, m_pScrolledWindow, allocation.x, allocation.y); + gtk_widget_set_size_request(m_pScrolledWindow, allocation.width, allocation.height); +#if !GTK_CHECK_VERSION(4, 0, 0) + gtk_widget_size_allocate(m_pScrolledWindow, &allocation); +#else + gtk_widget_size_allocate(m_pScrolledWindow, &allocation, 0); +#endif + + gtk_adjustment_set_value(gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(m_pScrolledWindow)), m_aClipRect.Left()); + gtk_adjustment_set_value(gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(m_pScrolledWindow)), m_aClipRect.Top()); +} + +void GtkSalObjectWidgetClip::SetPosSize(tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight) +{ + m_aRect = tools::Rectangle(Point(nX, nY), Size(nWidth, nHeight)); + if (m_pSocket) + { +#if !GTK_CHECK_VERSION(4, 0, 0) + GtkFixed* pContainer = GTK_FIXED(gtk_widget_get_parent(m_pScrolledWindow)); +#endif + gtk_widget_set_size_request(m_pSocket, nWidth, nHeight); + ApplyClipRegion(); +#if !GTK_CHECK_VERSION(4, 0, 0) + m_pParent->nopaint_container_resize_children(GTK_CONTAINER(pContainer)); +#endif + } +} + +void GtkSalObjectWidgetClip::Reparent(SalFrame* pFrame) +{ + GtkSalFrame* pNewParent = static_cast<GtkSalFrame*>(pFrame); + if (m_pSocket) + { + GtkFixed* pContainer = GTK_FIXED(gtk_widget_get_parent(m_pScrolledWindow)); + +#if !GTK_CHECK_VERSION(4, 0, 0) + gint nX(0), nY(0); + gtk_container_child_get(GTK_CONTAINER(pContainer), m_pScrolledWindow, + "x", &nX, + "y", &nY, + nullptr); +#else + double nX(0), nY(0); + gtk_fixed_get_child_position(pContainer, m_pScrolledWindow, &nX, &nY); +#endif + + g_object_ref(m_pScrolledWindow); +#if !GTK_CHECK_VERSION(4, 0, 0) + gtk_container_remove(GTK_CONTAINER(pContainer), m_pScrolledWindow); +#else + gtk_fixed_remove(pContainer, m_pScrolledWindow); +#endif + + gtk_fixed_put(pNewParent->getFixedContainer(), + m_pScrolledWindow, + nX, nY); + + g_object_unref(m_pScrolledWindow); + } + m_pParent = pNewParent; +} + +void GtkSalObjectWidgetClip::Show( bool bVisible ) +{ + if (!m_pSocket) + return; + bool bCurrentVis = gtk_widget_get_visible(m_pScrolledWindow); + if (bVisible == bCurrentVis) + return; + if( bVisible ) + { + gtk_widget_show(m_pScrolledWindow); + // tdf#146641 allocations attempted while hidden are discarded by gtk, + // so on transition to visible ApplyClipRegion needs to be called + ApplyClipRegion(); + } + else + { + // on hiding the widget, if a child has focus gtk will want to move the focus out of the widget + // but we want to keep the focus where it is, e.g. writer's comments in margin feature put + // cursor in a sidebar comment and scroll the page so the comment is invisible, we want the focus + // to stay in the invisible widget, so its there when we scroll back or on a keypress the widget + // gets the keystroke and scrolls back to make it visible again + GtkWidget* pTopLevel = widget_get_toplevel(m_pScrolledWindow); + GtkWidget* pOldFocus = GTK_IS_WINDOW(pTopLevel) ? gtk_window_get_focus(GTK_WINDOW(pTopLevel)) : nullptr; + + g_object_set_data(G_OBJECT(pTopLevel), "g-lo-BlockFocusChange", GINT_TO_POINTER(true) ); + + gtk_widget_hide(m_pScrolledWindow); + + GtkWidget* pNewFocus = GTK_IS_WINDOW(pTopLevel) ? gtk_window_get_focus(GTK_WINDOW(pTopLevel)) : nullptr; + if (pOldFocus && pOldFocus != pNewFocus) + gtk_widget_grab_focus(pOldFocus); + + g_object_set_data(G_OBJECT(pTopLevel), "g-lo-BlockFocusChange", GINT_TO_POINTER(false) ); + } +} + +void GtkSalObjectWidgetClip::signalDestroy( GtkWidget* pObj, gpointer object ) +{ + GtkSalObjectWidgetClip* pThis = static_cast<GtkSalObjectWidgetClip*>(object); + if( pObj == pThis->m_pSocket ) + { + pThis->m_pSocket = nullptr; + pThis->m_pScrolledWindow = nullptr; + } +} + +#if !GTK_CHECK_VERSION(4, 0, 0) +gboolean GtkSalObjectWidgetClip::signalScroll(GtkWidget* pScrolledWindow, GdkEvent* pEvent, gpointer object) +{ + GtkSalObjectWidgetClip* pThis = static_cast<GtkSalObjectWidgetClip*>(object); + return pThis->signal_scroll(pScrolledWindow, pEvent); +} +#else +gboolean GtkSalObjectWidgetClip::signalScroll(GtkEventControllerScroll* pController, double delta_x, double delta_y, gpointer object) +{ + GtkSalObjectWidgetClip* pThis = static_cast<GtkSalObjectWidgetClip*>(object); + return pThis->signal_scroll(pController, delta_x, delta_y); +} +#endif + +// forward the wheel scroll events onto the main window instead +#if !GTK_CHECK_VERSION(4, 0, 0) +bool GtkSalObjectWidgetClip::signal_scroll(GtkWidget*, GdkEvent* pEvent) +{ + GtkWidget* pEventWidget = gtk_get_event_widget(pEvent); + + GtkWidget* pMouseEventWidget = m_pParent->getMouseEventWidget(); + + gtk_coord dest_x, dest_y; + gtk_widget_translate_coordinates(pEventWidget, + pMouseEventWidget, + pEvent->scroll.x, + pEvent->scroll.y, + &dest_x, + &dest_y); + pEvent->scroll.x = dest_x; + pEvent->scroll.y = dest_y; + + GtkSalFrame::signalScroll(pMouseEventWidget, pEvent, m_pParent); + return true; +} +#else +bool GtkSalObjectWidgetClip::signal_scroll(GtkEventControllerScroll* pController, double delta_x, double delta_y) +{ + GtkWidget* pEventWidget = m_pScrolledWindow; + + GtkWidget* pMouseEventWidget = m_pParent->getMouseEventWidget(); + + gtk_coord dest_x, dest_y; + gtk_widget_translate_coordinates(pEventWidget, + pMouseEventWidget, + delta_x, + delta_y, + &dest_x, + &dest_y); + delta_x = dest_x; + delta_y = dest_y; + + GtkSalFrame::signalScroll(pController, delta_x, delta_y, m_pParent); + return true; +} +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |