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libreoffice/0001-tdf-96316-Decouple-vie...

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From 0a28049853ce84aa8ef4f871065970c1220ae855 Mon Sep 17 00:00:00 2001
From: Pranav Kant <pranavk@libreoffice.org>
Date: Wed, 9 Dec 2015 01:03:02 +0530
Subject: [PATCH 1/3] tdf#96316: Decouple view-only/editable modes
- Move text selection and graphic selection tasks into functions
- Merge GDK_BUTTON_PRESS, GDK_BUTTON_RELEASE conditional code
- Do not change to 'move' cursor in view-only mode
- Ignore LOK_POST_COMMAND, LOK_SET_GRAPHIC_SELECTION in view-only
As a consequence this commit also allows dragging handles during text
selection in view-only mode which was earlier not possible.
Change-Id: Iffb668d5447dd646a1e40237dee8d8d3fa3314b6
Reviewed-on: https://gerrit.libreoffice.org/20487
Reviewed-by: David Tardon <dtardon@redhat.com>
Tested-by: David Tardon <dtardon@redhat.com>
(cherry picked from commit b3bfc26d0863b074bb990725718f2ab23d05425d)
---
libreofficekit/source/gtk/lokdocview.cxx | 312 ++++++++++++++++++-------------
1 file changed, 180 insertions(+), 132 deletions(-)
diff --git a/libreofficekit/source/gtk/lokdocview.cxx b/libreofficekit/source/gtk/lokdocview.cxx
index c808752..cbdac71 100644
--- a/libreofficekit/source/gtk/lokdocview.cxx
+++ b/libreofficekit/source/gtk/lokdocview.cxx
@@ -312,6 +312,153 @@ isEmptyRectangle(const GdkRectangle& rRectangle)
return rRectangle.x == 0 && rRectangle.y == 0 && rRectangle.width == 0 && rRectangle.height == 0;
}
+/// if handled, returns TRUE else FALSE
+static bool
+handleTextSelectionOnButtonPress(GdkRectangle& aClick, LOKDocView* pDocView) {
+ LOKDocViewPrivate& priv = getPrivate(pDocView);
+
+ if (gdk_rectangle_intersect(&aClick, &priv->m_aHandleStartRect, nullptr))
+ {
+ g_info("LOKDocView_Impl::signalButton: start of drag start handle");
+ priv->m_bInDragStartHandle = true;
+ return TRUE;
+ }
+ else if (gdk_rectangle_intersect(&aClick, &priv->m_aHandleMiddleRect, nullptr))
+ {
+ g_info("LOKDocView_Impl::signalButton: start of drag middle handle");
+ priv->m_bInDragMiddleHandle = true;
+ return TRUE;
+ }
+ else if (gdk_rectangle_intersect(&aClick, &priv->m_aHandleEndRect, nullptr))
+ {
+ g_info("LOKDocView_Impl::signalButton: start of drag end handle");
+ priv->m_bInDragEndHandle = true;
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+/// if handled, returns TRUE else FALSE
+static bool
+handleGraphicSelectionOnButtonPress(GdkRectangle& aClick, LOKDocView* pDocView) {
+ LOKDocViewPrivate& priv = getPrivate(pDocView);
+ GError* error = nullptr;
+
+ for (int i = 0; i < GRAPHIC_HANDLE_COUNT; ++i)
+ {
+ if (gdk_rectangle_intersect(&aClick, &priv->m_aGraphicHandleRects[i], nullptr))
+ {
+ g_info("LOKDocView_Impl::signalButton: start of drag graphic handle #%d", i);
+ priv->m_bInDragGraphicHandles[i] = true;
+
+ GTask* task = g_task_new(pDocView, nullptr, nullptr, nullptr);
+ LOEvent* pLOEvent = new LOEvent(LOK_SET_GRAPHIC_SELECTION);
+ pLOEvent->m_nSetGraphicSelectionType = LOK_SETGRAPHICSELECTION_START;
+ pLOEvent->m_nSetGraphicSelectionX = pixelToTwip(priv->m_aGraphicHandleRects[i].x + priv->m_aGraphicHandleRects[i].width / 2, priv->m_fZoom);
+ pLOEvent->m_nSetGraphicSelectionY = pixelToTwip(priv->m_aGraphicHandleRects[i].y + priv->m_aGraphicHandleRects[i].height / 2, priv->m_fZoom);
+ g_task_set_task_data(task, pLOEvent, LOEvent::destroy);
+
+ g_thread_pool_push(priv->lokThreadPool, g_object_ref(task), &error);
+ if (error != nullptr)
+ {
+ g_warning("Unable to call LOK_SET_GRAPHIC_SELECTION: %s", error->message);
+ g_clear_error(&error);
+ }
+ g_object_unref(task);
+
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+
+/// if handled, returns TRUE else FALSE
+static bool
+handleTextSelectionOnButtonRelease(LOKDocView* pDocView) {
+ LOKDocViewPrivate& priv = getPrivate(pDocView);
+
+ if (priv->m_bInDragStartHandle)
+ {
+ g_info("LOKDocView_Impl::signalButton: end of drag start handle");
+ priv->m_bInDragStartHandle = false;
+ return TRUE;
+ }
+ else if (priv->m_bInDragMiddleHandle)
+ {
+ g_info("LOKDocView_Impl::signalButton: end of drag middle handle");
+ priv->m_bInDragMiddleHandle = false;
+ return TRUE;
+ }
+ else if (priv->m_bInDragEndHandle)
+ {
+ g_info("LOKDocView_Impl::signalButton: end of drag end handle");
+ priv->m_bInDragEndHandle = false;
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+/// if handled, returns TRUE else FALSE
+static bool
+handleGraphicSelectionOnButtonRelease(LOKDocView* pDocView, GdkEventButton* pEvent) {
+ LOKDocViewPrivate& priv = getPrivate(pDocView);
+ GError* error = nullptr;
+
+ for (int i = 0; i < GRAPHIC_HANDLE_COUNT; ++i)
+ {
+ if (priv->m_bInDragGraphicHandles[i])
+ {
+ g_info("LOKDocView_Impl::signalButton: end of drag graphic handle #%d", i);
+ priv->m_bInDragGraphicHandles[i] = false;
+
+ GTask* task = g_task_new(pDocView, nullptr, nullptr, nullptr);
+ LOEvent* pLOEvent = new LOEvent(LOK_SET_GRAPHIC_SELECTION);
+ pLOEvent->m_nSetGraphicSelectionType = LOK_SETGRAPHICSELECTION_END;
+ pLOEvent->m_nSetGraphicSelectionX = pixelToTwip(pEvent->x, priv->m_fZoom);
+ pLOEvent->m_nSetGraphicSelectionY = pixelToTwip(pEvent->y, priv->m_fZoom);
+ g_task_set_task_data(task, pLOEvent, LOEvent::destroy);
+
+ g_thread_pool_push(priv->lokThreadPool, g_object_ref(task), &error);
+ if (error != nullptr)
+ {
+ g_warning("Unable to call LOK_SET_GRAPHIC_SELECTION: %s", error->message);
+ g_clear_error(&error);
+ }
+ g_object_unref(task);
+
+ return TRUE;
+ }
+ }
+
+ if (priv->m_bInDragGraphicSelection)
+ {
+ g_info("LOKDocView_Impl::signalButton: end of drag graphic selection");
+ priv->m_bInDragGraphicSelection = false;
+
+ GTask* task = g_task_new(pDocView, nullptr, nullptr, nullptr);
+ LOEvent* pLOEvent = new LOEvent(LOK_SET_GRAPHIC_SELECTION);
+ pLOEvent->m_nSetGraphicSelectionType = LOK_SETGRAPHICSELECTION_END;
+ pLOEvent->m_nSetGraphicSelectionX = pixelToTwip(pEvent->x, priv->m_fZoom);
+ pLOEvent->m_nSetGraphicSelectionY = pixelToTwip(pEvent->y, priv->m_fZoom);
+ g_task_set_task_data(task, pLOEvent, LOEvent::destroy);
+
+ g_thread_pool_push(priv->lokThreadPool, g_object_ref(task), &error);
+ if (error != nullptr)
+ {
+ g_warning("Unable to call LOK_SET_GRAPHIC_SELECTION: %s", error->message);
+ g_clear_error(&error);
+ }
+ g_object_unref(task);
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
static void
postKeyEventInThread(gpointer data)
{
@@ -747,11 +894,17 @@ callback (gpointer pData)
break;
case LOK_CALLBACK_MOUSE_POINTER:
{
- // The gtk docs claim that most css cursors should be supported, however
- // on my system at least this is not true and many cursors are unsupported.
- // In this case pCursor = null, which results in the default cursor being set.
- GdkCursor* pCursor = gdk_cursor_new_from_name(gtk_widget_get_display(GTK_WIDGET(pDocView)), pCallback->m_aPayload.c_str());
- gdk_window_set_cursor(gtk_widget_get_window(GTK_WIDGET(pDocView)), pCursor);
+ // We do not want the cursor to get changed in view-only mode
+ if (priv->m_bEdit)
+ {
+ // The gtk docs claim that most css cursors should be supported, however
+ // on my system at least this is not true and many cursors are unsupported.
+ // In this case pCursor = null, which results in the default cursor
+ // being set.
+ GdkCursor* pCursor = gdk_cursor_new_from_name(gtk_widget_get_display(GTK_WIDGET(pDocView)),
+ pCallback->m_aPayload.c_str());
+ gdk_window_set_cursor(gtk_widget_get_window(GTK_WIDGET(pDocView)), pCursor);
+ }
}
break;
case LOK_CALLBACK_GRAPHIC_SELECTION:
@@ -1176,140 +1329,21 @@ lok_doc_view_signal_button(GtkWidget* pWidget, GdkEventButton* pEvent)
(int)pixelToTwip(pEvent->y, priv->m_fZoom));
gtk_widget_grab_focus(GTK_WIDGET(pDocView));
- if (pEvent->type == GDK_BUTTON_RELEASE)
+ switch (pEvent->type)
{
- if (priv->m_bInDragStartHandle)
- {
- g_info("LOKDocView_Impl::signalButton: end of drag start handle");
- priv->m_bInDragStartHandle = false;
- return FALSE;
- }
- else if (priv->m_bInDragMiddleHandle)
- {
- g_info("LOKDocView_Impl::signalButton: end of drag middle handle");
- priv->m_bInDragMiddleHandle = false;
- return FALSE;
- }
- else if (priv->m_bInDragEndHandle)
- {
- g_info("LOKDocView_Impl::signalButton: end of drag end handle");
- priv->m_bInDragEndHandle = false;
- return FALSE;
- }
-
- for (int i = 0; i < GRAPHIC_HANDLE_COUNT; ++i)
- {
- if (priv->m_bInDragGraphicHandles[i])
- {
- g_info("LOKDocView_Impl::signalButton: end of drag graphic handle #%d", i);
- priv->m_bInDragGraphicHandles[i] = false;
-
- GTask* task = g_task_new(pDocView, nullptr, nullptr, nullptr);
- LOEvent* pLOEvent = new LOEvent(LOK_SET_GRAPHIC_SELECTION);
- pLOEvent->m_nSetGraphicSelectionType = LOK_SETGRAPHICSELECTION_END;
- pLOEvent->m_nSetGraphicSelectionX = pixelToTwip(pEvent->x, priv->m_fZoom);
- pLOEvent->m_nSetGraphicSelectionY = pixelToTwip(pEvent->y, priv->m_fZoom);
- g_task_set_task_data(task, pLOEvent, LOEvent::destroy);
-
- g_thread_pool_push(priv->lokThreadPool, g_object_ref(task), &error);
- if (error != nullptr)
- {
- g_warning("Unable to call LOK_SET_GRAPHIC_SELECTION: %s", error->message);
- g_clear_error(&error);
- }
- g_object_unref(task);
-
- return FALSE;
- }
- }
-
- if (priv->m_bInDragGraphicSelection)
- {
- g_info("LOKDocView_Impl::signalButton: end of drag graphic selection");
- priv->m_bInDragGraphicSelection = false;
-
- GTask* task = g_task_new(pDocView, nullptr, nullptr, nullptr);
- LOEvent* pLOEvent = new LOEvent(LOK_SET_GRAPHIC_SELECTION);
- pLOEvent->m_nSetGraphicSelectionType = LOK_SETGRAPHICSELECTION_END;
- pLOEvent->m_nSetGraphicSelectionX = pixelToTwip(pEvent->x, priv->m_fZoom);
- pLOEvent->m_nSetGraphicSelectionY = pixelToTwip(pEvent->y, priv->m_fZoom);
- g_task_set_task_data(task, pLOEvent, LOEvent::destroy);
-
- g_thread_pool_push(priv->lokThreadPool, g_object_ref(task), &error);
- if (error != nullptr)
- {
- g_warning("Unable to call LOK_SET_GRAPHIC_SELECTION: %s", error->message);
- g_clear_error(&error);
- }
- g_object_unref(task);
-
- return FALSE;
- }
- }
-
- if (priv->m_bEdit)
+ case GDK_BUTTON_PRESS:
{
GdkRectangle aClick;
aClick.x = pEvent->x;
aClick.y = pEvent->y;
aClick.width = 1;
aClick.height = 1;
- if (pEvent->type == GDK_BUTTON_PRESS)
- {
- if (gdk_rectangle_intersect(&aClick, &priv->m_aHandleStartRect, nullptr))
- {
- g_info("LOKDocView_Impl::signalButton: start of drag start handle");
- priv->m_bInDragStartHandle = true;
- return FALSE;
- }
- else if (gdk_rectangle_intersect(&aClick, &priv->m_aHandleMiddleRect, nullptr))
- {
- g_info("LOKDocView_Impl::signalButton: start of drag middle handle");
- priv->m_bInDragMiddleHandle = true;
- return FALSE;
- }
- else if (gdk_rectangle_intersect(&aClick, &priv->m_aHandleEndRect, nullptr))
- {
- g_info("LOKDocView_Impl::signalButton: start of drag end handle");
- priv->m_bInDragEndHandle = true;
- return FALSE;
- }
- for (int i = 0; i < GRAPHIC_HANDLE_COUNT; ++i)
- {
- if (gdk_rectangle_intersect(&aClick, &priv->m_aGraphicHandleRects[i], nullptr))
- {
- g_info("LOKDocView_Impl::signalButton: start of drag graphic handle #%d", i);
- priv->m_bInDragGraphicHandles[i] = true;
-
- GTask* task = g_task_new(pDocView, nullptr, nullptr, nullptr);
- LOEvent* pLOEvent = new LOEvent(LOK_SET_GRAPHIC_SELECTION);
- pLOEvent->m_nSetGraphicSelectionType = LOK_SETGRAPHICSELECTION_START;
- pLOEvent->m_nSetGraphicSelectionX = pixelToTwip(priv->m_aGraphicHandleRects[i].x + priv->m_aGraphicHandleRects[i].width / 2, priv->m_fZoom);
- pLOEvent->m_nSetGraphicSelectionY = pixelToTwip(priv->m_aGraphicHandleRects[i].y + priv->m_aGraphicHandleRects[i].height / 2, priv->m_fZoom);
- g_task_set_task_data(task, pLOEvent, LOEvent::destroy);
-
- g_thread_pool_push(priv->lokThreadPool, g_object_ref(task), &error);
- if (error != nullptr)
- {
- g_warning("Unable to call LOK_SET_GRAPHIC_SELECTION: %s", error->message);
- g_clear_error(&error);
- }
- g_object_unref(task);
-
- return FALSE;
- }
- }
- }
- }
-
- if (!priv->m_bEdit)
- lok_doc_view_set_edit(pDocView, TRUE);
+ if (handleTextSelectionOnButtonPress(aClick, pDocView))
+ return FALSE;
+ if (handleGraphicSelectionOnButtonPress(aClick, pDocView))
+ return FALSE;
- switch (pEvent->type)
- {
- case GDK_BUTTON_PRESS:
- {
int nCount = 1;
if ((pEvent->time - priv->m_nLastButtonPressTime) < 250)
nCount++;
@@ -1347,6 +1381,11 @@ lok_doc_view_signal_button(GtkWidget* pWidget, GdkEventButton* pEvent)
}
case GDK_BUTTON_RELEASE:
{
+ if (handleTextSelectionOnButtonRelease(pDocView))
+ return FALSE;
+ if (handleGraphicSelectionOnButtonRelease(pDocView, pEvent))
+ return FALSE;
+
int nCount = 1;
if ((pEvent->time - priv->m_nLastButtonReleaseTime) < 250)
nCount++;
@@ -1722,6 +1761,8 @@ lokThreadFunc(gpointer data, gpointer /*user_data*/)
{
GTask* task = G_TASK(data);
LOEvent* pLOEvent = static_cast<LOEvent*>(g_task_get_task_data(task));
+ LOKDocView* pDocView = LOK_DOC_VIEW(g_task_get_source_object(task));
+ LOKDocViewPrivate& priv = getPrivate(pDocView);
switch (pLOEvent->m_nType)
{
@@ -1729,7 +1770,10 @@ lokThreadFunc(gpointer data, gpointer /*user_data*/)
openDocumentInThread(task);
break;
case LOK_POST_COMMAND:
- postCommandInThread(task);
+ if (priv->m_bEdit)
+ postCommandInThread(task);
+ else
+ g_info ("LOK_POST_COMMAND: ignoring commands in view-only mode");
break;
case LOK_SET_EDIT:
setEditInThread(task);
@@ -1741,6 +1785,7 @@ lokThreadFunc(gpointer data, gpointer /*user_data*/)
setPartmodeInThread(task);
break;
case LOK_POST_KEY:
+ // view-only/editable mode already checked during signal key signal emission
postKeyEventInThread(task);
break;
case LOK_PAINT_TILE:
@@ -1750,7 +1795,10 @@ lokThreadFunc(gpointer data, gpointer /*user_data*/)
postMouseEventInThread(task);
break;
case LOK_SET_GRAPHIC_SELECTION:
- setGraphicSelectionInThread(task);
+ if (priv->m_bEdit)
+ setGraphicSelectionInThread(task);
+ else
+ g_info ("LOK_SET_GRAPHIC_SELECTION: skipping graphical operation in view-only mode");
break;
case LOK_SET_CLIENT_ZOOM:
setClientZoomInThread(task);
--
2.5.0
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