/////////////////////////////////////////////////////////////////////////////
-// Name: htmlwin.cpp
+// Name: src/html/htmlwin.cpp
// Purpose: wxHtmlWindow class for parsing & displaying HTML (implementation)
// Author: Vaclav Slavik
// RCS-ID: $Id$
// Copyright: (c) 1999 Vaclav Slavik
-// Licence: wxWindows Licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
+#include "wx/wxprec.h"
-#ifdef __GNUG__
-#pragma implementation "htmlwin.h"
-#pragma implementation "htmlproc.h"
+#ifdef __BORLANDC__
+ #pragma hdrstop
#endif
-#include "wx/wxprec.h"
-
-#include "wx/defs.h"
#if wxUSE_HTML && wxUSE_STREAMS
-#ifdef __BORDLANDC__
-#pragma hdrstop
-#endif
-
-#ifndef WXPRECOMP
+#ifndef WX_PRECOMP
+ #include "wx/list.h"
#include "wx/log.h"
#include "wx/intl.h"
#include "wx/dcclient.h"
#include "wx/frame.h"
+ #include "wx/dcmemory.h"
+ #include "wx/timer.h"
+ #include "wx/settings.h"
+ #include "wx/dataobj.h"
+ #include "wx/statusbr.h"
#endif
#include "wx/html/htmlwin.h"
#include "wx/html/htmlproc.h"
-#include "wx/list.h"
+#include "wx/clipbrd.h"
+#include "wx/recguard.h"
#include "wx/arrimpl.cpp"
#include "wx/listimpl.cpp"
+// uncomment this line to visually show the extent of the selection
+//#define DEBUG_HTML_SELECTION
+
+// HTML events:
+IMPLEMENT_DYNAMIC_CLASS(wxHtmlLinkEvent, wxCommandEvent)
+IMPLEMENT_DYNAMIC_CLASS(wxHtmlCellEvent, wxCommandEvent)
+
+wxDEFINE_EVENT( wxEVT_COMMAND_HTML_CELL_CLICKED, wxHtmlCellEvent );
+wxDEFINE_EVENT( wxEVT_COMMAND_HTML_CELL_HOVER, wxHtmlCellEvent );
+wxDEFINE_EVENT( wxEVT_COMMAND_HTML_LINK_CLICKED, wxHtmlLinkEvent );
+
+
+#if wxUSE_CLIPBOARD
+// ----------------------------------------------------------------------------
+// wxHtmlWinAutoScrollTimer: the timer used to generate a stream of scroll
+// events when a captured mouse is held outside the window
+// ----------------------------------------------------------------------------
+
+class wxHtmlWinAutoScrollTimer : public wxTimer
+{
+public:
+ wxHtmlWinAutoScrollTimer(wxScrolledWindow *win,
+ wxEventType eventTypeToSend,
+ int pos, int orient)
+ {
+ m_win = win;
+ m_eventType = eventTypeToSend;
+ m_pos = pos;
+ m_orient = orient;
+ }
+
+ virtual void Notify();
+
+private:
+ wxScrolledWindow *m_win;
+ wxEventType m_eventType;
+ int m_pos,
+ m_orient;
+
+ wxDECLARE_NO_COPY_CLASS(wxHtmlWinAutoScrollTimer);
+};
+
+void wxHtmlWinAutoScrollTimer::Notify()
+{
+ // only do all this as long as the window is capturing the mouse
+ if ( wxWindow::GetCapture() != m_win )
+ {
+ Stop();
+ }
+ else // we still capture the mouse, continue generating events
+ {
+ // first scroll the window if we are allowed to do it
+ wxScrollWinEvent event1(m_eventType, m_pos, m_orient);
+ event1.SetEventObject(m_win);
+ if ( m_win->GetEventHandler()->ProcessEvent(event1) )
+ {
+ // and then send a pseudo mouse-move event to refresh the selection
+ wxMouseEvent event2(wxEVT_MOTION);
+ wxGetMousePosition(&event2.m_x, &event2.m_y);
+
+ // the mouse event coordinates should be client, not screen as
+ // returned by wxGetMousePosition
+ wxWindow *parentTop = m_win;
+ while ( parentTop->GetParent() )
+ parentTop = parentTop->GetParent();
+ wxPoint ptOrig = parentTop->GetPosition();
+ event2.m_x -= ptOrig.x;
+ event2.m_y -= ptOrig.y;
+
+ event2.SetEventObject(m_win);
+
+ // FIXME: we don't fill in the other members - ok?
+ m_win->GetEventHandler()->ProcessEvent(event2);
+ }
+ else // can't scroll further, stop
+ {
+ Stop();
+ }
+ }
+}
+
+#endif // wxUSE_CLIPBOARD
+
+
+
//-----------------------------------------------------------------------------
// wxHtmlHistoryItem
//-----------------------------------------------------------------------------
// item of history list
-class WXDLLEXPORT wxHtmlHistoryItem : public wxObject
+class WXDLLIMPEXP_HTML wxHtmlHistoryItem
{
public:
wxHtmlHistoryItem(const wxString& p, const wxString& a) {m_Page = p, m_Anchor = a, m_Pos = 0;}
//-----------------------------------------------------------------------------
WX_DECLARE_OBJARRAY(wxHtmlHistoryItem, wxHtmlHistoryArray);
-WX_DEFINE_OBJARRAY(wxHtmlHistoryArray);
+WX_DEFINE_OBJARRAY(wxHtmlHistoryArray)
WX_DECLARE_LIST(wxHtmlProcessor, wxHtmlProcessorList);
-WX_DEFINE_LIST(wxHtmlProcessorList);
+WX_DEFINE_LIST(wxHtmlProcessorList)
+
+//-----------------------------------------------------------------------------
+// wxHtmlWindowMouseHelper
+//-----------------------------------------------------------------------------
+
+wxHtmlWindowMouseHelper::wxHtmlWindowMouseHelper(wxHtmlWindowInterface *iface)
+ : m_tmpMouseMoved(false),
+ m_tmpLastLink(NULL),
+ m_tmpLastCell(NULL),
+ m_interface(iface)
+{
+}
+
+void wxHtmlWindowMouseHelper::HandleMouseMoved()
+{
+ m_tmpMouseMoved = true;
+}
+
+bool wxHtmlWindowMouseHelper::HandleMouseClick(wxHtmlCell *rootCell,
+ const wxPoint& pos,
+ const wxMouseEvent& event)
+{
+ if (!rootCell)
+ return false;
+
+ wxHtmlCell *cell = rootCell->FindCellByPos(pos.x, pos.y);
+ // this check is needed because FindCellByPos returns terminal cell and
+ // containers may have empty borders -- in this case NULL will be
+ // returned
+ if (!cell)
+ return false;
+
+ // adjust the coordinates to be relative to this cell:
+ wxPoint relpos = pos - cell->GetAbsPos(rootCell);
+
+ return OnCellClicked(cell, relpos.x, relpos.y, event);
+}
+
+void wxHtmlWindowMouseHelper::HandleIdle(wxHtmlCell *rootCell,
+ const wxPoint& pos)
+{
+ wxHtmlCell *cell = rootCell ? rootCell->FindCellByPos(pos.x, pos.y) : NULL;
+
+ if (cell != m_tmpLastCell)
+ {
+ wxHtmlLinkInfo *lnk = NULL;
+ if (cell)
+ {
+ // adjust the coordinates to be relative to this cell:
+ wxPoint relpos = pos - cell->GetAbsPos(rootCell);
+ lnk = cell->GetLink(relpos.x, relpos.y);
+ }
+
+ wxCursor cur;
+ if (cell)
+ cur = cell->GetMouseCursor(m_interface);
+ else
+ cur = m_interface->GetHTMLCursor(
+ wxHtmlWindowInterface::HTMLCursor_Default);
+
+ m_interface->GetHTMLWindow()->SetCursor(cur);
+
+ if (lnk != m_tmpLastLink)
+ {
+ if (lnk)
+ m_interface->SetHTMLStatusText(lnk->GetHref());
+ else
+ m_interface->SetHTMLStatusText(wxEmptyString);
+
+ m_tmpLastLink = lnk;
+ }
+
+ m_tmpLastCell = cell;
+ }
+ else // mouse moved but stayed in the same cell
+ {
+ if ( cell )
+ {
+ OnCellMouseHover(cell, pos.x, pos.y);
+ }
+ }
+
+ m_tmpMouseMoved = false;
+}
+
+bool wxHtmlWindowMouseHelper::OnCellClicked(wxHtmlCell *cell,
+ wxCoord x, wxCoord y,
+ const wxMouseEvent& event)
+{
+ wxHtmlCellEvent ev(wxEVT_COMMAND_HTML_CELL_CLICKED,
+ m_interface->GetHTMLWindow()->GetId(),
+ cell, wxPoint(x,y), event);
+
+ if (!m_interface->GetHTMLWindow()->GetEventHandler()->ProcessEvent(ev))
+ {
+ // if the event wasn't handled, do the default processing here:
+
+ wxASSERT_MSG( cell, wxT("can't be called with NULL cell") );
+
+ cell->ProcessMouseClick(m_interface, ev.GetPoint(), ev.GetMouseEvent());
+ }
+
+ // true if a link was clicked, false otherwise
+ return ev.GetLinkClicked();
+}
+
+void wxHtmlWindowMouseHelper::OnCellMouseHover(wxHtmlCell * cell,
+ wxCoord x,
+ wxCoord y)
+{
+ wxHtmlCellEvent ev(wxEVT_COMMAND_HTML_CELL_HOVER,
+ m_interface->GetHTMLWindow()->GetId(),
+ cell, wxPoint(x,y), wxMouseEvent());
+ m_interface->GetHTMLWindow()->GetEventHandler()->ProcessEvent(ev);
+}
+
+
+
//-----------------------------------------------------------------------------
// wxHtmlWindow
//-----------------------------------------------------------------------------
+wxList wxHtmlWindow::m_Filters;
+wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
+wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL;
+wxCursor *wxHtmlWindow::ms_cursorLink = NULL;
+wxCursor *wxHtmlWindow::ms_cursorText = NULL;
-wxHtmlWindow::wxHtmlWindow(wxWindow *parent, wxWindowID id, const wxPoint& pos, const wxSize& size,
- long style, const wxString& name) : wxScrolledWindow(parent, id, pos, size, style | wxVSCROLL | wxHSCROLL, name)
+void wxHtmlWindow::CleanUpStatics()
+{
+ wxDELETE(m_DefaultFilter);
+ WX_CLEAR_LIST(wxList, m_Filters);
+ if (m_GlobalProcessors)
+ WX_CLEAR_LIST(wxHtmlProcessorList, *m_GlobalProcessors);
+ wxDELETE(m_GlobalProcessors);
+ wxDELETE(ms_cursorLink);
+ wxDELETE(ms_cursorText);
+}
+
+void wxHtmlWindow::Init()
{
- m_tmpMouseMoved = FALSE;
- m_tmpLastLink = NULL;
- m_tmpLastCell = NULL;
m_tmpCanDrawLocks = 0;
m_FS = new wxFileSystem();
- m_RelatedStatusBar = -1;
+#if wxUSE_STATUSBAR
+ m_RelatedStatusBar = NULL;
+ m_RelatedStatusBarIndex = -1;
+#endif // wxUSE_STATUSBAR
m_RelatedFrame = NULL;
m_TitleFormat = wxT("%s");
m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
m_Cell = NULL;
m_Parser = new wxHtmlWinParser(this);
m_Parser->SetFS(m_FS);
- SetBorders(10);
m_HistoryPos = -1;
- m_HistoryOn = TRUE;
+ m_HistoryOn = true;
m_History = new wxHtmlHistoryArray;
m_Processors = NULL;
- m_Style = style;
- SetPage(wxT("<html><body></body></html>"));
+ SetBorders(10);
+ m_selection = NULL;
+ m_makingSelection = false;
+#if wxUSE_CLIPBOARD
+ m_timerAutoScroll = NULL;
+ m_lastDoubleClick = 0;
+#endif // wxUSE_CLIPBOARD
+ m_tmpSelFromCell = NULL;
}
+bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id,
+ const wxPoint& pos, const wxSize& size,
+ long style, const wxString& name)
+{
+ if (!wxScrolledWindow::Create(parent, id, pos, size,
+ style | wxVSCROLL | wxHSCROLL,
+ name))
+ return false;
+
+ // We can't erase our background in EVT_ERASE_BACKGROUND handler and use
+ // double buffering in EVT_PAINT handler as this requires blitting back
+ // something already drawn on the window to the backing store bitmap when
+ // handling EVT_PAINT but blitting in this direction is simply not
+ // supported by OS X.
+ //
+ // So instead we use a hack with artificial EVT_ERASE_BACKGROUND generation
+ // from OnPaint() and this means that we never need the "real" erase event
+ // at all so disable it to avoid executing any user-defined handlers twice
+ // (and to avoid processing unnecessary event if no handlers are defined).
+ SetBackgroundStyle(wxBG_STYLE_PAINT);
+ SetPage(wxT("<html><body></body></html>"));
+
+ SetInitialSize(size);
+ return true;
+}
wxHtmlWindow::~wxHtmlWindow()
{
+#if wxUSE_CLIPBOARD
+ StopAutoScrolling();
+#endif // wxUSE_CLIPBOARD
HistoryClear();
- if (m_Cell) delete m_Cell;
+ delete m_selection;
+
+ delete m_Cell;
+
+ if ( m_Processors )
+ {
+ WX_CLEAR_LIST(wxHtmlProcessorList, *m_Processors);
+ }
delete m_Parser;
delete m_FS;
-void wxHtmlWindow::SetRelatedStatusBar(int bar)
+#if wxUSE_STATUSBAR
+void wxHtmlWindow::SetRelatedStatusBar(int index)
+{
+ m_RelatedStatusBarIndex = index;
+}
+
+void wxHtmlWindow::SetRelatedStatusBar(wxStatusBar* statusbar, int index)
{
- m_RelatedStatusBar = bar;
+ m_RelatedStatusBar = statusbar;
+ m_RelatedStatusBarIndex = index;
}
+#endif // wxUSE_STATUSBAR
-void wxHtmlWindow::SetFonts(wxString normal_face, wxString fixed_face, const int *sizes)
-{
- wxString op = m_OpenedPage;
+void wxHtmlWindow::SetFonts(const wxString& normal_face, const wxString& fixed_face, const int *sizes)
+{
m_Parser->SetFonts(normal_face, fixed_face, sizes);
- // fonts changed => contents invalid, so reload the page:
- SetPage(wxT("<html><body></body></html>"));
- if (!op.IsEmpty()) LoadPage(op);
+
+ // re-layout the page after changing fonts:
+ DoSetPage(*(m_Parser->GetSource()));
}
+void wxHtmlWindow::SetStandardFonts(int size,
+ const wxString& normal_face,
+ const wxString& fixed_face)
+{
+ m_Parser->SetStandardFonts(size, normal_face, fixed_face);
+ // re-layout the page after changing fonts:
+ DoSetPage(*(m_Parser->GetSource()));
+}
bool wxHtmlWindow::SetPage(const wxString& source)
+{
+ m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
+ return DoSetPage(source);
+}
+
+bool wxHtmlWindow::DoSetPage(const wxString& source)
{
wxString newsrc(source);
+ wxDELETE(m_selection);
+
+ // we will soon delete all the cells, so clear pointers to them:
+ m_tmpSelFromCell = NULL;
+
// pass HTML through registered processors:
if (m_Processors || m_GlobalProcessors)
{
- wxHtmlProcessorList::Node *nodeL, *nodeG;
+ wxHtmlProcessorList::compatibility_iterator nodeL, nodeG;
int prL, prG;
- nodeL = (m_Processors) ? m_Processors->GetFirst() : NULL;
- nodeG = (m_GlobalProcessors) ? m_GlobalProcessors->GetFirst() : NULL;
+ if ( m_Processors )
+ nodeL = m_Processors->GetFirst();
+ if ( m_GlobalProcessors )
+ nodeG = m_GlobalProcessors->GetFirst();
// VS: there are two lists, global and local, both of them sorted by
// priority. Since we have to go through _both_ lists with
wxClientDC *dc = new wxClientDC(this);
dc->SetMapMode(wxMM_TEXT);
SetBackgroundColour(wxColour(0xFF, 0xFF, 0xFF));
- m_OpenedPage = m_OpenedAnchor = m_OpenedPageTitle = wxEmptyString;
+ SetBackgroundImage(wxNullBitmap);
+
m_Parser->SetDC(dc);
- if (m_Cell)
- {
- delete m_Cell;
- m_Cell = NULL;
- }
+
+ // notice that it's important to set m_Cell to NULL here before calling
+ // Parse() below, even if it will be overwritten by its return value as
+ // without this we may crash if it's used from inside Parse(), so use
+ // wxDELETE() and not just delete here
+ wxDELETE(m_Cell);
+
m_Cell = (wxHtmlContainerCell*) m_Parser->Parse(newsrc);
delete dc;
m_Cell->SetIndent(m_Borders, wxHTML_INDENT_ALL, wxHTML_UNITS_PIXELS);
CreateLayout();
if (m_tmpCanDrawLocks == 0)
Refresh();
- return TRUE;
+ return true;
}
bool wxHtmlWindow::AppendToPage(const wxString& source)
{
- return SetPage(*(GetParser()->GetSource()) + source);
+ return DoSetPage(*(GetParser()->GetSource()) + source);
}
bool wxHtmlWindow::LoadPage(const wxString& location)
{
- wxFSFile *f;
- bool rt_val;
- bool needs_refresh = FALSE;
+ wxCHECK_MSG( !location.empty(), false, "location must be non-empty" );
+
+ wxBusyCursor busyCursor;
- SetCursor(*wxHOURGLASS_CURSOR);
- wxYield(); Refresh(FALSE);
+ bool rt_val;
+ bool needs_refresh = false;
m_tmpCanDrawLocks++;
if (m_HistoryOn && (m_HistoryPos != -1))
(*m_History)[m_HistoryPos].SetPos(y);
}
- if (location[0] == wxT('#'))
+ // first check if we're moving to an anchor in the same page
+ size_t posLocalAnchor = location.Find('#');
+ if ( posLocalAnchor != wxString::npos && posLocalAnchor != 0 )
{
- // local anchor:
- wxString anch = location.Mid(1) /*1 to end*/;
- m_tmpCanDrawLocks--;
- rt_val = ScrollToAnchor(anch);
- m_tmpCanDrawLocks++;
- }
- else if (location.Find(wxT('#')) != wxNOT_FOUND && location.BeforeFirst(wxT('#')) == m_OpenedPage)
- {
- wxString anch = location.AfterFirst(wxT('#'));
- m_tmpCanDrawLocks--;
- rt_val = ScrollToAnchor(anch);
- m_tmpCanDrawLocks++;
+ // check if the part before the anchor is the same as the (either
+ // relative or absolute) URI of the current page
+ const wxString beforeAnchor = location.substr(0, posLocalAnchor);
+ if ( beforeAnchor != m_OpenedPage &&
+ m_FS->GetPath() + beforeAnchor != m_OpenedPage )
+ {
+ // indicate that we're not moving to a local anchor
+ posLocalAnchor = wxString::npos;
+ }
}
- else if (location.Find(wxT('#')) != wxNOT_FOUND &&
- (m_FS->GetPath() + location.BeforeFirst(wxT('#'))) == m_OpenedPage)
+
+ if ( posLocalAnchor != wxString::npos )
{
- wxString anch = location.AfterFirst(wxT('#'));
m_tmpCanDrawLocks--;
- rt_val = ScrollToAnchor(anch);
+ rt_val = ScrollToAnchor(location.substr(posLocalAnchor + 1));
m_tmpCanDrawLocks++;
}
-
- else
+ else // moving to another page
{
- needs_refresh = TRUE;
+ needs_refresh = true;
+#if wxUSE_STATUSBAR
// load&display it:
- if (m_RelatedStatusBar != -1)
+ if (m_RelatedStatusBarIndex != -1)
{
- m_RelatedFrame->SetStatusText(_("Connecting..."), m_RelatedStatusBar);
- Refresh(FALSE);
+ SetHTMLStatusText(_("Connecting..."));
+ Refresh(false);
}
+#endif // wxUSE_STATUSBAR
- f = m_FS->OpenFile(location);
+ wxFSFile *f = m_Parser->OpenURL(wxHTML_URL_PAGE, location);
+
+ // try to interpret 'location' as filename instead of URL:
+ if (f == NULL)
+ {
+ wxFileName fn(location);
+ wxString location2 = wxFileSystem::FileNameToURL(fn);
+ f = m_Parser->OpenURL(wxHTML_URL_PAGE, location2);
+ }
if (f == NULL)
{
wxLogError(_("Unable to open requested HTML document: %s"), location.c_str());
m_tmpCanDrawLocks--;
-
- SetCursor(*wxSTANDARD_CURSOR);
- return FALSE;
+ SetHTMLStatusText(wxEmptyString);
+ return false;
}
else
{
- wxNode *node;
+ wxList::compatibility_iterator node;
wxString src = wxEmptyString;
- if (m_RelatedStatusBar != -1)
+#if wxUSE_STATUSBAR
+ if (m_RelatedStatusBarIndex != -1)
{
wxString msg = _("Loading : ") + location;
- m_RelatedFrame->SetStatusText(msg, m_RelatedStatusBar);
- Refresh(FALSE);
+ SetHTMLStatusText(msg);
+ Refresh(false);
}
+#endif // wxUSE_STATUSBAR
node = m_Filters.GetFirst();
while (node)
m_OpenedPage = f->GetLocation();
if (f->GetAnchor() != wxEmptyString)
{
- wxYield();
ScrollToAnchor(f->GetAnchor());
}
delete f;
- if (m_RelatedStatusBar != -1) m_RelatedFrame->SetStatusText(_("Done"), m_RelatedStatusBar);
+#if wxUSE_STATUSBAR
+ if (m_RelatedStatusBarIndex != -1)
+ {
+ SetHTMLStatusText(_("Done"));
+ }
+#endif // wxUSE_STATUSBAR
}
}
if (m_OpenedPageTitle == wxEmptyString)
OnSetTitle(wxFileNameFromPath(m_OpenedPage));
- SetCursor(*wxSTANDARD_CURSOR);
if (needs_refresh)
{
- wxYield();
m_tmpCanDrawLocks--;
Refresh();
}
}
+bool wxHtmlWindow::LoadFile(const wxFileName& filename)
+{
+ wxString url = wxFileSystem::FileNameToURL(filename);
+ return LoadPage(url);
+}
+
bool wxHtmlWindow::ScrollToAnchor(const wxString& anchor)
{
if (!c)
{
wxLogWarning(_("HTML anchor %s does not exist."), anchor.c_str());
- return FALSE;
+ return false;
}
else
{
+ // Go to next visible cell in current container, if it exists. This
+ // yields a bit better (even though still imperfect) results in that
+ // there's better chance of using a suitable cell for upper Y
+ // coordinate value. See bug #11406 for additional discussion.
+ const wxHtmlCell *c_save = c;
+ while ( c && c->IsFormattingCell() )
+ c = c->GetNext();
+ if ( !c )
+ c = c_save;
+
int y;
for (y = 0; c != NULL; c = c->GetParent()) y += c->GetPosY();
Scroll(-1, y / wxHTML_SCROLL_STEP);
m_OpenedAnchor = anchor;
- return TRUE;
+ return true;
}
}
}
-
+// return scroll steps such that a) scrollbars aren't shown needlessly
+// and b) entire content is viewable (i.e. round up)
+static int ScrollSteps(int size, int available)
+{
+ if ( size <= available )
+ return 0;
+ else
+ return (size + wxHTML_SCROLL_STEP - 1) / wxHTML_SCROLL_STEP;
+}
void wxHtmlWindow::CreateLayout()
{
- int ClientWidth, ClientHeight;
+ // SetScrollbars() results in size change events -- and thus a nested
+ // CreateLayout() call -- on some platforms. Ignore nested calls, toplevel
+ // CreateLayout() will do the right thing eventually.
+ static wxRecursionGuardFlag s_flagReentrancy;
+ wxRecursionGuard guard(s_flagReentrancy);
+ if ( guard.IsInside() )
+ return;
- if (!m_Cell) return;
+ if (!m_Cell)
+ return;
- if (m_Style & wxHW_SCROLLBAR_NEVER)
+ int clientWidth, clientHeight;
+ GetClientSize(&clientWidth, &clientHeight);
+
+ const int vscrollbar = wxSystemSettings::GetMetric(wxSYS_VSCROLL_X);
+ const int hscrollbar = wxSystemSettings::GetMetric(wxSYS_HSCROLL_Y);
+
+ if ( HasScrollbar(wxHORIZONTAL) )
+ clientHeight += hscrollbar;
+
+ if ( HasScrollbar(wxVERTICAL) )
+ clientWidth += vscrollbar;
+
+ if ( HasFlag(wxHW_SCROLLBAR_NEVER) )
{
- SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // always off
- GetClientSize(&ClientWidth, &ClientHeight);
- m_Cell->Layout(ClientWidth);
+ SetScrollbars(1, 1, 0, 0); // always off
+ m_Cell->Layout(clientWidth);
}
+ else // !wxHW_SCROLLBAR_NEVER
+ {
+ // Lay the content out with the assumption that it's too large to fit
+ // in the window (this is likely to be the case):
+ m_Cell->Layout(clientWidth - vscrollbar);
+
+ // If the layout is wider than the window, horizontal scrollbar will
+ // certainly be shown. Account for it here for subsequent computations.
+ if ( m_Cell->GetWidth() > clientWidth )
+ clientHeight -= hscrollbar;
- else {
- GetClientSize(&ClientWidth, &ClientHeight);
- m_Cell->Layout(ClientWidth);
- if (ClientHeight < m_Cell->GetHeight() + GetCharHeight())
+ if ( m_Cell->GetHeight() <= clientHeight )
{
- SetScrollbars(
- wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
- m_Cell->GetWidth() / wxHTML_SCROLL_STEP,
- (m_Cell->GetHeight() + GetCharHeight()) / wxHTML_SCROLL_STEP
- /*cheat: top-level frag is always container*/);
+ // we fit into the window, hide vertical scrollbar:
+ SetScrollbars
+ (
+ wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
+ ScrollSteps(m_Cell->GetWidth(), clientWidth - vscrollbar),
+ 0
+ );
+ // ...and redo the layout to use the extra space
+ m_Cell->Layout(clientWidth);
}
- else /* we fit into window, no need for scrollbars */
+ else
{
- SetScrollbars(wxHTML_SCROLL_STEP, 1, m_Cell->GetWidth() / wxHTML_SCROLL_STEP, 0); // disable...
- GetClientSize(&ClientWidth, &ClientHeight);
- m_Cell->Layout(ClientWidth); // ...and relayout
+ // If the content doesn't fit into the window by only a small
+ // margin, chances are that it may fit fully with scrollbar turned
+ // off. It's something worth trying but on the other hand, we don't
+ // want to waste too much time redoing the layout (twice!) for
+ // long -- and thus expensive to layout -- pages. The cut-off value
+ // is an arbitrary heuristics.
+ static const int SMALL_OVERLAP = 60;
+ if ( m_Cell->GetHeight() <= clientHeight + SMALL_OVERLAP )
+ {
+ m_Cell->Layout(clientWidth);
+
+ if ( m_Cell->GetHeight() <= clientHeight )
+ {
+ // Great, we fit in. Hide the scrollbar.
+ SetScrollbars
+ (
+ wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
+ ScrollSteps(m_Cell->GetWidth(), clientWidth),
+ 0
+ );
+ return;
+ }
+ else
+ {
+ // That didn't work out, go back to previous layout. Note
+ // that redoing the layout once again here isn't as bad as
+ // it looks -- thanks to the small cut-off value, it's a
+ // reasonably small page.
+ m_Cell->Layout(clientWidth - vscrollbar);
+ }
+ }
+ // else: the page is very long, it will certainly need scrollbar
+
+ SetScrollbars
+ (
+ wxHTML_SCROLL_STEP, wxHTML_SCROLL_STEP,
+ ScrollSteps(m_Cell->GetWidth(), clientWidth - vscrollbar),
+ ScrollSteps(m_Cell->GetHeight(), clientHeight)
+ );
}
}
}
-
-
+#if wxUSE_CONFIG
void wxHtmlWindow::ReadCustomization(wxConfigBase *cfg, wxString path)
{
wxString oldpath;
if (path != wxEmptyString)
cfg->SetPath(oldpath);
}
-
-
+#endif // wxUSE_CONFIG
bool wxHtmlWindow::HistoryBack()
{
wxString a, l;
- if (m_HistoryPos < 1) return FALSE;
+ if (m_HistoryPos < 1) return false;
// store scroll position into history item:
int x, y;
l = (*m_History)[m_HistoryPos].GetPage();
a = (*m_History)[m_HistoryPos].GetAnchor();
- m_HistoryOn = FALSE;
+ m_HistoryOn = false;
m_tmpCanDrawLocks++;
if (a == wxEmptyString) LoadPage(l);
else LoadPage(l + wxT("#") + a);
- m_HistoryOn = TRUE;
- wxYield();
+ m_HistoryOn = true;
m_tmpCanDrawLocks--;
Scroll(0, (*m_History)[m_HistoryPos].GetPos());
Refresh();
- return TRUE;
+ return true;
}
bool wxHtmlWindow::HistoryCanBack()
{
- if (m_HistoryPos < 1) return FALSE;
- return TRUE ;
+ if (m_HistoryPos < 1) return false;
+ return true ;
}
{
wxString a, l;
- if (m_HistoryPos == -1) return FALSE;
- if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE;
+ if (m_HistoryPos == -1) return false;
+ if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
m_OpenedPage = wxEmptyString; // this will disable adding new entry into history in LoadPage()
m_HistoryPos++;
l = (*m_History)[m_HistoryPos].GetPage();
a = (*m_History)[m_HistoryPos].GetAnchor();
- m_HistoryOn = FALSE;
+ m_HistoryOn = false;
m_tmpCanDrawLocks++;
if (a == wxEmptyString) LoadPage(l);
else LoadPage(l + wxT("#") + a);
- m_HistoryOn = TRUE;
- wxYield();
+ m_HistoryOn = true;
m_tmpCanDrawLocks--;
Scroll(0, (*m_History)[m_HistoryPos].GetPos());
Refresh();
- return TRUE;
+ return true;
}
bool wxHtmlWindow::HistoryCanForward()
{
- if (m_HistoryPos == -1) return FALSE;
- if (m_HistoryPos >= (int)m_History->GetCount() - 1)return FALSE;
- return TRUE ;
+ if (m_HistoryPos == -1) return false;
+ if (m_HistoryPos >= (int)m_History->GetCount() - 1)return false;
+ return true ;
}
if (!m_Processors)
{
m_Processors = new wxHtmlProcessorList;
- m_Processors->DeleteContents(TRUE);
}
- wxHtmlProcessorList::Node *node;
+ wxHtmlProcessorList::compatibility_iterator node;
for (node = m_Processors->GetFirst(); node; node = node->GetNext())
{
if (!m_GlobalProcessors)
{
m_GlobalProcessors = new wxHtmlProcessorList;
- m_GlobalProcessors->DeleteContents(TRUE);
}
- wxHtmlProcessorList::Node *node;
+ wxHtmlProcessorList::compatibility_iterator node;
for (node = m_GlobalProcessors->GetFirst(); node; node = node->GetNext())
{
-wxList wxHtmlWindow::m_Filters;
-wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL;
-wxCursor *wxHtmlWindow::s_cur_hand = NULL;
-wxCursor *wxHtmlWindow::s_cur_arrow = NULL;
-wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL;
+void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
+{
+ m_Filters.Append(filter);
+}
-void wxHtmlWindow::CleanUpStatics()
+
+bool wxHtmlWindow::IsSelectionEnabled() const
{
- delete m_DefaultFilter;
- m_DefaultFilter = NULL;
- m_Filters.DeleteContents(TRUE);
- m_Filters.Clear();
- delete m_GlobalProcessors;
- m_GlobalProcessors = NULL;
- delete s_cur_hand;
- delete s_cur_arrow;
+#if wxUSE_CLIPBOARD
+ return !HasFlag(wxHW_NO_SELECTION);
+#else
+ return false;
+#endif
}
+#if wxUSE_CLIPBOARD
+wxString wxHtmlWindow::DoSelectionToText(wxHtmlSelection *sel)
+{
+ if ( !sel )
+ return wxEmptyString;
+
+ wxClientDC dc(this);
+ wxString text;
-void wxHtmlWindow::AddFilter(wxHtmlFilter *filter)
+ wxHtmlTerminalCellsInterator i(sel->GetFromCell(), sel->GetToCell());
+ const wxHtmlCell *prev = NULL;
+
+ while ( i )
+ {
+ // When converting HTML content to plain text, the entire paragraph
+ // (container in wxHTML) goes on single line. A new paragraph (that
+ // should go on its own line) has its own container. Therefore, the
+ // simplest way of detecting where to insert newlines in plain text
+ // is to check if the parent container changed -- if it did, we moved
+ // to a new paragraph.
+ if ( prev && prev->GetParent() != i->GetParent() )
+ text << '\n';
+
+ // NB: we don't need to pass the selection to ConvertToText() in the
+ // middle of the selected text; it's only useful when only part of
+ // a cell is selected
+ text << i->ConvertToText(sel);
+
+ prev = *i;
+ ++i;
+ }
+ return text;
+}
+
+wxString wxHtmlWindow::ToText()
{
- m_Filters.Append(filter);
+ if (m_Cell)
+ {
+ wxHtmlSelection sel;
+ sel.Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
+ return DoSelectionToText(&sel);
+ }
+ else
+ return wxEmptyString;
}
+#endif // wxUSE_CLIPBOARD
+
+bool wxHtmlWindow::CopySelection(ClipboardType t)
+{
+#if wxUSE_CLIPBOARD
+ if ( m_selection )
+ {
+#if defined(__UNIX__) && !defined(__WXMAC__)
+ wxTheClipboard->UsePrimarySelection(t == Primary);
+#else // !__UNIX__
+ // Primary selection exists only under X11, so don't do anything under
+ // the other platforms when we try to access it
+ //
+ // TODO: this should be abstracted at wxClipboard level!
+ if ( t == Primary )
+ return false;
+#endif // __UNIX__/!__UNIX__
+
+ if ( wxTheClipboard->Open() )
+ {
+ const wxString txt(SelectionToText());
+ wxTheClipboard->SetData(new wxTextDataObject(txt));
+ wxTheClipboard->Close();
+ wxLogTrace(wxT("wxhtmlselection"),
+ _("Copied to clipboard:\"%s\""), txt.c_str());
+
+ return true;
+ }
+ }
+#else
+ wxUnusedVar(t);
+#endif // wxUSE_CLIPBOARD
+ return false;
+}
void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link)
{
- LoadPage(link.GetHref());
+ wxHtmlLinkEvent event(GetId(), link);
+ event.SetEventObject(this);
+ if (!GetEventHandler()->ProcessEvent(event))
+ {
+ // the default behaviour is to load the URL in this window
+ const wxMouseEvent *e = event.GetLinkInfo().GetEvent();
+ if (e == NULL || e->LeftUp())
+ LoadPage(event.GetLinkInfo().GetHref());
+ }
}
-void wxHtmlWindow::OnCellClicked(wxHtmlCell *cell,
- wxCoord x, wxCoord y,
- const wxMouseEvent& event)
-{
- wxCHECK_RET( cell, _T("can't be called with NULL cell") );
+void wxHtmlWindow::DoEraseBackground(wxDC& dc)
+{
+ // if we don't have any background bitmap we just fill it with background
+ // colour and we also must do it if the background bitmap is not fully
+ // opaque as otherwise junk could be left there
+ if ( !m_bmpBg.IsOk() || m_bmpBg.GetMask() )
+ {
+ dc.SetBackground(GetBackgroundColour());
+ dc.Clear();
+ }
- cell->OnMouseClick(this, x, y, event);
+ if ( m_bmpBg.IsOk() )
+ {
+ // draw the background bitmap tiling it over the entire window area
+ const wxSize sz = GetClientSize();
+ const wxSize sizeBmp(m_bmpBg.GetWidth(), m_bmpBg.GetHeight());
+ for ( wxCoord x = 0; x < sz.x; x += sizeBmp.x )
+ {
+ for ( wxCoord y = 0; y < sz.y; y += sizeBmp.y )
+ {
+ dc.DrawBitmap(m_bmpBg, x, y, true /* use mask */);
+ }
+ }
+ }
}
-void wxHtmlWindow::OnCellMouseHover(wxHtmlCell * WXUNUSED(cell),
- wxCoord WXUNUSED(x), wxCoord WXUNUSED(y))
+void wxHtmlWindow::OnEraseBackground(wxEraseEvent& WXUNUSED(event))
{
- // do nothing here
+ // We never get real erase background events as we changed our background
+ // style to wxBG_STYLE_PAINT in our ctor so the only time when we get here
+ // is when an artificial wxEraseEvent is generated by our own OnPaint()
+ // below. This handler only exists to stop the event from propagating
+ // downwards to wxWindow which may erase the background itself when it gets
+ // it in some ports (currently this happens in wxUniv), so we simply stop
+ // processing here and set a special flag allowing OnPaint() to see that
+ // the event hadn't been really processed.
+ m_isBgReallyErased = false;
}
-void wxHtmlWindow::OnDraw(wxDC& dc)
+void wxHtmlWindow::OnPaint(wxPaintEvent& WXUNUSED(event))
{
- int x, y;
- wxRegionIterator upd(GetUpdateRegion()); // get the update rect list
- int v_y, v_h;
+ wxPaintDC dcPaint(this);
- if (m_tmpCanDrawLocks > 0) return;
+ if (m_tmpCanDrawLocks > 0 || m_Cell == NULL)
+ return;
- dc.SetMapMode(wxMM_TEXT);
- dc.SetBackgroundMode(wxTRANSPARENT);
+ int x, y;
GetViewStart(&x, &y);
+ const wxRect rect = GetUpdateRegion().GetBox();
+ const wxSize sz = GetClientSize();
+
+ // set up the DC we're drawing on: if the window is already double buffered
+ // we do it directly on wxPaintDC, otherwise we allocate a backing store
+ // buffer and compose the drawing there and then blit it to screen all at
+ // once
+ wxDC *dc;
+ wxMemoryDC dcm;
+ if ( IsDoubleBuffered() )
+ {
+ dc = &dcPaint;
+ }
+ else // window is not double buffered by the system, do it ourselves
+ {
+ if ( !m_backBuffer.IsOk() )
+ m_backBuffer.Create(sz.x, sz.y);
+ dcm.SelectObject(m_backBuffer);
+ dc = &dcm;
+ }
+
+ PrepareDC(*dc);
- while (upd)
+ // Erase the background: for compatibility, we must generate the event to
+ // allow the user-defined handlers to do it, hence this hack with sending
+ // an artificial wxEraseEvent to trigger the execution of such handlers.
+ wxEraseEvent eraseEvent(GetId(), dc);
+ eraseEvent.SetEventObject(this);
+
+ // Hack inside a hack: the background wasn't really erased if our own
+ // OnEraseBackground() was executed, so we need to check for the flag set
+ // by it whenever it's called.
+ m_isBgReallyErased = true; // Initially assume it wasn't.
+ if ( !ProcessWindowEvent(eraseEvent) || !m_isBgReallyErased )
{
- v_y = upd.GetY();
- v_h = upd.GetH();
- if (m_Cell) m_Cell->Draw(dc, 0, 0, y * wxHTML_SCROLL_STEP + v_y, y * wxHTML_SCROLL_STEP + v_h + v_y);
- upd++;
+ // erase background ourselves
+ DoEraseBackground(*dc);
+ }
+ //else: background erased by the user-defined handler
+
+
+ // draw the HTML window contents
+ dc->SetMapMode(wxMM_TEXT);
+ dc->SetBackgroundMode(wxTRANSPARENT);
+ dc->SetLayoutDirection(GetLayoutDirection());
+
+ wxHtmlRenderingInfo rinfo;
+ wxDefaultHtmlRenderingStyle rstyle;
+ rinfo.SetSelection(m_selection);
+ rinfo.SetStyle(&rstyle);
+ m_Cell->Draw(*dc, 0, 0,
+ y * wxHTML_SCROLL_STEP + rect.GetTop(),
+ y * wxHTML_SCROLL_STEP + rect.GetBottom(),
+ rinfo);
+
+#ifdef DEBUG_HTML_SELECTION
+ {
+ int xc, yc, x, y;
+ wxGetMousePosition(&xc, &yc);
+ ScreenToClient(&xc, &yc);
+ CalcUnscrolledPosition(xc, yc, &x, &y);
+ wxHtmlCell *at = m_Cell->FindCellByPos(x, y);
+ wxHtmlCell *before =
+ m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_BEFORE);
+ wxHtmlCell *after =
+ m_Cell->FindCellByPos(x, y, wxHTML_FIND_NEAREST_AFTER);
+
+ dc->SetBrush(*wxTRANSPARENT_BRUSH);
+ dc->SetPen(*wxBLACK_PEN);
+ if (at)
+ dc->DrawRectangle(at->GetAbsPos(),
+ wxSize(at->GetWidth(),at->GetHeight()));
+ dc->SetPen(*wxGREEN_PEN);
+ if (before)
+ dc->DrawRectangle(before->GetAbsPos().x+1, before->GetAbsPos().y+1,
+ before->GetWidth()-2,before->GetHeight()-2);
+ dc->SetPen(*wxRED_PEN);
+ if (after)
+ dc->DrawRectangle(after->GetAbsPos().x+2, after->GetAbsPos().y+2,
+ after->GetWidth()-4,after->GetHeight()-4);
+ }
+#endif // DEBUG_HTML_SELECTION
+
+ if ( dc != &dcPaint )
+ {
+ dc->SetDeviceOrigin(0,0);
+ dcPaint.Blit(0, rect.GetTop(),
+ sz.x, rect.GetBottom() - rect.GetTop() + 1,
+ dc,
+ 0, rect.GetTop());
}
}
void wxHtmlWindow::OnSize(wxSizeEvent& event)
{
- wxScrolledWindow::OnSize(event);
+ event.Skip();
+
+ m_backBuffer = wxNullBitmap;
+
CreateLayout();
+
+ // Recompute selection if necessary:
+ if ( m_selection )
+ {
+ m_selection->Set(m_selection->GetFromCell(),
+ m_selection->GetToCell());
+ m_selection->ClearFromToCharacterPos();
+ }
+
Refresh();
}
-void wxHtmlWindow::OnMouseEvent(wxMouseEvent& event)
+void wxHtmlWindow::OnMouseMove(wxMouseEvent& WXUNUSED(event))
{
- m_tmpMouseMoved = TRUE;
+ wxHtmlWindowMouseHelper::HandleMouseMoved();
+}
- if (event.ButtonDown())
+void wxHtmlWindow::OnMouseDown(wxMouseEvent& event)
+{
+#if wxUSE_CLIPBOARD
+ if ( event.LeftDown() && IsSelectionEnabled() )
{
- if ( m_Cell )
+ const long TRIPLECLICK_LEN = 200; // 0.2 sec after doubleclick
+ if ( wxGetLocalTimeMillis() - m_lastDoubleClick <= TRIPLECLICK_LEN )
+ {
+ SelectLine(CalcUnscrolledPosition(event.GetPosition()));
+
+ (void) CopySelection();
+ }
+ else
{
- int sx, sy;
- GetViewStart(&sx, &sy);
- sx *= wxHTML_SCROLL_STEP;
- sy *= wxHTML_SCROLL_STEP;
-
- wxPoint pos = event.GetPosition();
- pos.x += sx;
- pos.y += sy;
-
- wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
-
- // VZ: is it possible that we don't find anything at all?
- // VS: yes. FindCellByPos returns terminal cell and
- // containers may have empty borders
- if ( cell )
- OnCellClicked(cell, pos.x, pos.y, event);
+ m_makingSelection = true;
+
+ if ( m_selection )
+ {
+ wxDELETE(m_selection);
+ Refresh();
+ }
+ m_tmpSelFromPos = CalcUnscrolledPosition(event.GetPosition());
+ m_tmpSelFromCell = NULL;
+
+ CaptureMouse();
}
}
-}
-
+#endif // wxUSE_CLIPBOARD
+ // in any case, let the default handler set focus to this window
+ event.Skip();
+}
-void wxHtmlWindow::OnIdle(wxIdleEvent& WXUNUSED(event))
+void wxHtmlWindow::OnMouseUp(wxMouseEvent& event)
{
- if (s_cur_hand == NULL)
+#if wxUSE_CLIPBOARD
+ if ( m_makingSelection )
{
- s_cur_hand = new wxCursor(wxCURSOR_HAND);
- s_cur_arrow = new wxCursor(wxCURSOR_ARROW);
+ ReleaseMouse();
+ m_makingSelection = false;
+
+ // if m_selection=NULL, the user didn't move the mouse far enough from
+ // starting point and the mouse up event is part of a click, the user
+ // is not selecting text:
+ if ( m_selection )
+ {
+ CopySelection(Primary);
+
+ // we don't want mouse up event that ended selecting to be
+ // handled as mouse click and e.g. follow hyperlink:
+ return;
+ }
}
+#endif // wxUSE_CLIPBOARD
- if (m_tmpMouseMoved && (m_Cell != NULL))
- {
- int sx, sy;
- GetViewStart(&sx, &sy);
- sx *= wxHTML_SCROLL_STEP;
- sy *= wxHTML_SCROLL_STEP;
+ wxPoint pos = CalcUnscrolledPosition(event.GetPosition());
+ if ( !wxHtmlWindowMouseHelper::HandleMouseClick(m_Cell, pos, event) )
+ event.Skip();
+}
- int x, y;
- wxGetMousePosition(&x, &y);
- ScreenToClient(&x, &y);
- x += sx;
- y += sy;
+#if wxUSE_CLIPBOARD
+void wxHtmlWindow::OnMouseCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event))
+{
+ if ( !m_makingSelection )
+ return;
+
+ // discard the selecting operation
+ m_makingSelection = false;
+ wxDELETE(m_selection);
+ m_tmpSelFromCell = NULL;
+ Refresh();
+}
+#endif // wxUSE_CLIPBOARD
+
+
+void wxHtmlWindow::OnInternalIdle()
+{
+ wxWindow::OnInternalIdle();
+
+ if (m_Cell != NULL && DidMouseMove())
+ {
+#ifdef DEBUG_HTML_SELECTION
+ Refresh();
+#endif
+ int xc, yc, x, y;
+ wxGetMousePosition(&xc, &yc);
+ ScreenToClient(&xc, &yc);
+ CalcUnscrolledPosition(xc, yc, &x, &y);
wxHtmlCell *cell = m_Cell->FindCellByPos(x, y);
- if ( cell != m_tmpLastCell )
+
+ // handle selection update:
+ if ( m_makingSelection )
{
- wxHtmlLinkInfo *lnk = cell ? cell->GetLink(x, y) : NULL;
+ if ( !m_tmpSelFromCell )
+ m_tmpSelFromCell = m_Cell->FindCellByPos(
+ m_tmpSelFromPos.x,m_tmpSelFromPos.y);
+
+ // NB: a trick - we adjust selFromPos to be upper left or bottom
+ // right corner of the first cell of the selection depending
+ // on whether the mouse is moving to the right or to the left.
+ // This gives us more "natural" behaviour when selecting
+ // a line (specifically, first cell of the next line is not
+ // included if you drag selection from left to right over
+ // entire line):
+ wxPoint dirFromPos;
+ if ( !m_tmpSelFromCell )
+ {
+ dirFromPos = m_tmpSelFromPos;
+ }
+ else
+ {
+ dirFromPos = m_tmpSelFromCell->GetAbsPos();
+ if ( x < m_tmpSelFromPos.x )
+ {
+ dirFromPos.x += m_tmpSelFromCell->GetWidth();
+ dirFromPos.y += m_tmpSelFromCell->GetHeight();
+ }
+ }
+ bool goingDown = dirFromPos.y < y ||
+ (dirFromPos.y == y && dirFromPos.x < x);
- if (lnk != m_tmpLastLink)
+ // determine selection span:
+ if ( /*still*/ !m_tmpSelFromCell )
{
- if (lnk == NULL)
+ if (goingDown)
{
- SetCursor(*s_cur_arrow);
- if (m_RelatedStatusBar != -1)
- m_RelatedFrame->SetStatusText(wxEmptyString, m_RelatedStatusBar);
+ m_tmpSelFromCell = m_Cell->FindCellByPos(
+ m_tmpSelFromPos.x,m_tmpSelFromPos.y,
+ wxHTML_FIND_NEAREST_AFTER);
+ if (!m_tmpSelFromCell)
+ m_tmpSelFromCell = m_Cell->GetFirstTerminal();
}
else
{
- SetCursor(*s_cur_hand);
- if (m_RelatedStatusBar != -1)
- m_RelatedFrame->SetStatusText(lnk->GetHref(), m_RelatedStatusBar);
+ m_tmpSelFromCell = m_Cell->FindCellByPos(
+ m_tmpSelFromPos.x,m_tmpSelFromPos.y,
+ wxHTML_FIND_NEAREST_BEFORE);
+ if (!m_tmpSelFromCell)
+ m_tmpSelFromCell = m_Cell->GetLastTerminal();
}
- m_tmpLastLink = lnk;
}
- m_tmpLastCell = cell;
+ wxHtmlCell *selcell = cell;
+ if (!selcell)
+ {
+ if (goingDown)
+ {
+ selcell = m_Cell->FindCellByPos(x, y,
+ wxHTML_FIND_NEAREST_BEFORE);
+ if (!selcell)
+ selcell = m_Cell->GetLastTerminal();
+ }
+ else
+ {
+ selcell = m_Cell->FindCellByPos(x, y,
+ wxHTML_FIND_NEAREST_AFTER);
+ if (!selcell)
+ selcell = m_Cell->GetFirstTerminal();
+ }
+ }
+
+ // NB: it may *rarely* happen that the code above didn't find one
+ // of the cells, e.g. if wxHtmlWindow doesn't contain any
+ // visible cells.
+ if ( selcell && m_tmpSelFromCell )
+ {
+ if ( !m_selection )
+ {
+ // start selecting only if mouse movement was big enough
+ // (otherwise it was meant as mouse click, not selection):
+ const int PRECISION = 2;
+ wxPoint diff = m_tmpSelFromPos - wxPoint(x,y);
+ if (abs(diff.x) > PRECISION || abs(diff.y) > PRECISION)
+ {
+ m_selection = new wxHtmlSelection();
+ }
+ }
+ if ( m_selection )
+ {
+ if ( m_tmpSelFromCell->IsBefore(selcell) )
+ {
+ m_selection->Set(m_tmpSelFromPos, m_tmpSelFromCell,
+ wxPoint(x,y), selcell);
+ }
+ else
+ {
+ m_selection->Set(wxPoint(x,y), selcell,
+ m_tmpSelFromPos, m_tmpSelFromCell);
+ }
+ m_selection->ClearFromToCharacterPos();
+ Refresh();
+ }
+ }
}
- else // mouse moved but stayed in the same cell
+
+ // handle cursor and status bar text changes:
+
+ // NB: because we're passing in 'cell' and not 'm_Cell' (so that the
+ // leaf cell lookup isn't done twice), we need to adjust the
+ // position for the new root:
+ wxPoint posInCell(x, y);
+ if (cell)
+ posInCell -= cell->GetAbsPos();
+ wxHtmlWindowMouseHelper::HandleIdle(cell, posInCell);
+ }
+}
+
+#if wxUSE_CLIPBOARD
+void wxHtmlWindow::StopAutoScrolling()
+{
+ if ( m_timerAutoScroll )
+ {
+ wxDELETE(m_timerAutoScroll);
+ }
+}
+
+void wxHtmlWindow::OnMouseEnter(wxMouseEvent& event)
+{
+ StopAutoScrolling();
+ event.Skip();
+}
+
+void wxHtmlWindow::OnMouseLeave(wxMouseEvent& event)
+{
+ // don't prevent the usual processing of the event from taking place
+ event.Skip();
+
+ // when a captured mouse leave a scrolled window we start generate
+ // scrolling events to allow, for example, extending selection beyond the
+ // visible area in some controls
+ if ( wxWindow::GetCapture() == this )
+ {
+ // where is the mouse leaving?
+ int pos, orient;
+ wxPoint pt = event.GetPosition();
+ if ( pt.x < 0 )
+ {
+ orient = wxHORIZONTAL;
+ pos = 0;
+ }
+ else if ( pt.y < 0 )
{
- if ( cell )
- OnCellMouseHover(cell, x, y);
+ orient = wxVERTICAL;
+ pos = 0;
}
+ else // we're lower or to the right of the window
+ {
+ wxSize size = GetClientSize();
+ if ( pt.x > size.x )
+ {
+ orient = wxHORIZONTAL;
+ pos = GetVirtualSize().x / wxHTML_SCROLL_STEP;
+ }
+ else if ( pt.y > size.y )
+ {
+ orient = wxVERTICAL;
+ pos = GetVirtualSize().y / wxHTML_SCROLL_STEP;
+ }
+ else // this should be impossible
+ {
+ // but seems to happen sometimes under wxMSW - maybe it's a bug
+ // there but for now just ignore it
+
+ //wxFAIL_MSG( wxT("can't understand where has mouse gone") );
+
+ return;
+ }
+ }
+
+ // only start the auto scroll timer if the window can be scrolled in
+ // this direction
+ if ( !HasScrollbar(orient) )
+ return;
- m_tmpMouseMoved = FALSE;
+ delete m_timerAutoScroll;
+ m_timerAutoScroll = new wxHtmlWinAutoScrollTimer
+ (
+ this,
+ pos == 0 ? wxEVT_SCROLLWIN_LINEUP
+ : wxEVT_SCROLLWIN_LINEDOWN,
+ pos,
+ orient
+ );
+ m_timerAutoScroll->Start(50); // FIXME: make configurable
}
}
+void wxHtmlWindow::OnKeyUp(wxKeyEvent& event)
+{
+ if ( IsSelectionEnabled() &&
+ (event.GetKeyCode() == 'C' && event.CmdDown()) )
+ {
+ wxClipboardTextEvent evt(wxEVT_COMMAND_TEXT_COPY, GetId());
+
+ evt.SetEventObject(this);
+
+ GetEventHandler()->ProcessEvent(evt);
+ }
+ else
+ {
+ event.Skip();
+ }
+}
+
+void wxHtmlWindow::OnCopy(wxCommandEvent& WXUNUSED(event))
+{
+ (void) CopySelection();
+}
+
+void wxHtmlWindow::OnClipboardEvent(wxClipboardTextEvent& WXUNUSED(event))
+{
+ (void) CopySelection();
+}
+
+void wxHtmlWindow::OnDoubleClick(wxMouseEvent& event)
+{
+ // select word under cursor:
+ if ( IsSelectionEnabled() )
+ {
+ SelectWord(CalcUnscrolledPosition(event.GetPosition()));
+
+ (void) CopySelection(Primary);
+
+ m_lastDoubleClick = wxGetLocalTimeMillis();
+ }
+ else
+ event.Skip();
+}
+
+void wxHtmlWindow::SelectWord(const wxPoint& pos)
+{
+ if ( m_Cell )
+ {
+ wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
+ if ( cell )
+ {
+ delete m_selection;
+ m_selection = new wxHtmlSelection();
+ m_selection->Set(cell, cell);
+ RefreshRect(wxRect(CalcScrolledPosition(cell->GetAbsPos()),
+ wxSize(cell->GetWidth(), cell->GetHeight())));
+ }
+ }
+}
+
+void wxHtmlWindow::SelectLine(const wxPoint& pos)
+{
+ if ( m_Cell )
+ {
+ wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y);
+ if ( cell )
+ {
+ // We use following heuristic to find a "line": let the line be all
+ // cells in same container as the cell under mouse cursor that are
+ // neither completely above nor completely below the clicked cell
+ // (i.e. are likely to be words positioned on same line of text).
+
+ int y1 = cell->GetAbsPos().y;
+ int y2 = y1 + cell->GetHeight();
+ int y;
+ const wxHtmlCell *c;
+ const wxHtmlCell *before = NULL;
+ const wxHtmlCell *after = NULL;
+
+ // find last cell of line:
+ for ( c = cell->GetNext(); c; c = c->GetNext())
+ {
+ y = c->GetAbsPos().y;
+ if ( y + c->GetHeight() > y1 && y < y2 )
+ after = c;
+ else
+ break;
+ }
+ if ( !after )
+ after = cell;
+
+ // find first cell of line:
+ for ( c = cell->GetParent()->GetFirstChild();
+ c && c != cell; c = c->GetNext())
+ {
+ y = c->GetAbsPos().y;
+ if ( y + c->GetHeight() > y1 && y < y2 )
+ {
+ if ( ! before )
+ before = c;
+ }
+ else
+ before = NULL;
+ }
+ if ( !before )
+ before = cell;
+
+ delete m_selection;
+ m_selection = new wxHtmlSelection();
+ m_selection->Set(before, after);
+
+ Refresh();
+ }
+ }
+}
+
+void wxHtmlWindow::SelectAll()
+{
+ if ( m_Cell )
+ {
+ delete m_selection;
+ m_selection = new wxHtmlSelection();
+ m_selection->Set(m_Cell->GetFirstTerminal(), m_Cell->GetLastTerminal());
+ Refresh();
+ }
+}
+
+#endif // wxUSE_CLIPBOARD
+
+
IMPLEMENT_ABSTRACT_CLASS(wxHtmlProcessor,wxObject)
-IMPLEMENT_DYNAMIC_CLASS(wxHtmlWindow,wxScrolledWindow)
+wxBEGIN_PROPERTIES_TABLE(wxHtmlWindow)
+/*
+ TODO PROPERTIES
+ style , wxHW_SCROLLBAR_AUTO
+ borders , (dimension)
+ url , string
+ htmlcode , string
+*/
+wxEND_PROPERTIES_TABLE()
+
+wxBEGIN_HANDLERS_TABLE(wxHtmlWindow)
+wxEND_HANDLERS_TABLE()
+
+wxCONSTRUCTOR_5( wxHtmlWindow , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
+
+wxIMPLEMENT_DYNAMIC_CLASS_XTI(wxHtmlWindow, wxScrolledWindow,"wx/html/htmlwin.h")
BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow)
EVT_SIZE(wxHtmlWindow::OnSize)
- EVT_LEFT_DOWN(wxHtmlWindow::OnMouseEvent)
- EVT_RIGHT_DOWN(wxHtmlWindow::OnMouseEvent)
- EVT_MOTION(wxHtmlWindow::OnMouseEvent)
- EVT_IDLE(wxHtmlWindow::OnIdle)
+ EVT_LEFT_DOWN(wxHtmlWindow::OnMouseDown)
+ EVT_LEFT_UP(wxHtmlWindow::OnMouseUp)
+ EVT_RIGHT_UP(wxHtmlWindow::OnMouseUp)
+ EVT_MOTION(wxHtmlWindow::OnMouseMove)
+ EVT_PAINT(wxHtmlWindow::OnPaint)
+ EVT_ERASE_BACKGROUND(wxHtmlWindow::OnEraseBackground)
+#if wxUSE_CLIPBOARD
+ EVT_LEFT_DCLICK(wxHtmlWindow::OnDoubleClick)
+ EVT_ENTER_WINDOW(wxHtmlWindow::OnMouseEnter)
+ EVT_LEAVE_WINDOW(wxHtmlWindow::OnMouseLeave)
+ EVT_MOUSE_CAPTURE_LOST(wxHtmlWindow::OnMouseCaptureLost)
+ EVT_KEY_UP(wxHtmlWindow::OnKeyUp)
+ EVT_MENU(wxID_COPY, wxHtmlWindow::OnCopy)
+ EVT_TEXT_COPY(wxID_ANY, wxHtmlWindow::OnClipboardEvent)
+#endif // wxUSE_CLIPBOARD
END_EVENT_TABLE()
+//-----------------------------------------------------------------------------
+// wxHtmlWindowInterface implementation in wxHtmlWindow
+//-----------------------------------------------------------------------------
+void wxHtmlWindow::SetHTMLWindowTitle(const wxString& title)
+{
+ OnSetTitle(title);
+}
+void wxHtmlWindow::OnHTMLLinkClicked(const wxHtmlLinkInfo& link)
+{
+ OnLinkClicked(link);
+}
+wxHtmlOpeningStatus wxHtmlWindow::OnHTMLOpeningURL(wxHtmlURLType type,
+ const wxString& url,
+ wxString *redirect) const
+{
+ return OnOpeningURL(type, url, redirect);
+}
+
+wxPoint wxHtmlWindow::HTMLCoordsToWindow(wxHtmlCell *WXUNUSED(cell),
+ const wxPoint& pos) const
+{
+ return CalcScrolledPosition(pos);
+}
+
+wxWindow* wxHtmlWindow::GetHTMLWindow()
+{
+ return this;
+}
+
+wxColour wxHtmlWindow::GetHTMLBackgroundColour() const
+{
+ return GetBackgroundColour();
+}
+
+void wxHtmlWindow::SetHTMLBackgroundColour(const wxColour& clr)
+{
+ SetBackgroundColour(clr);
+}
+
+void wxHtmlWindow::SetHTMLBackgroundImage(const wxBitmap& bmpBg)
+{
+ SetBackgroundImage(bmpBg);
+}
+
+void wxHtmlWindow::SetHTMLStatusText(const wxString& text)
+{
+#if wxUSE_STATUSBAR
+ if (m_RelatedStatusBarIndex != -1)
+ {
+ if (m_RelatedStatusBar)
+ {
+ m_RelatedStatusBar->SetStatusText(text, m_RelatedStatusBarIndex);
+ }
+ else if (m_RelatedFrame)
+ {
+ m_RelatedFrame->SetStatusText(text, m_RelatedStatusBarIndex);
+ }
+ }
+#else
+ wxUnusedVar(text);
+#endif // wxUSE_STATUSBAR
+}
+
+/*static*/
+wxCursor wxHtmlWindow::GetDefaultHTMLCursor(HTMLCursor type)
+{
+ switch (type)
+ {
+ case HTMLCursor_Link:
+ if ( !ms_cursorLink )
+ ms_cursorLink = new wxCursor(wxCURSOR_HAND);
+ return *ms_cursorLink;
+
+ case HTMLCursor_Text:
+ if ( !ms_cursorText )
+ ms_cursorText = new wxCursor(wxCURSOR_IBEAM);
+ return *ms_cursorText;
+
+ case HTMLCursor_Default:
+ default:
+ return *wxSTANDARD_CURSOR;
+ }
+}
+
+wxCursor wxHtmlWindow::GetHTMLCursor(HTMLCursor type) const
+{
+ return GetDefaultHTMLCursor(type);
+}
+
+
+//-----------------------------------------------------------------------------
+// wxHtmlWinModule
+//-----------------------------------------------------------------------------
// A module to allow initialization/cleanup
// without calling these functions from app.cpp or from
DECLARE_DYNAMIC_CLASS(wxHtmlWinModule)
public:
wxHtmlWinModule() : wxModule() {}
- bool OnInit() { return TRUE; }
+ bool OnInit() { return true; }
void OnExit() { wxHtmlWindow::CleanUpStatics(); }
};
#include "wx/html/forcelnk.h"
FORCE_WXHTML_MODULES()
-#endif
+#endif // wxUSE_HTML
projects / wxWidgets.git / blobdiff