articleview.cpp.svn-base

wince c++ 下 开发的 rss 阅读器源代码

				if (::GetSubMenu(hParentMenu, nIndex) == pMenu->m_hMenu) {
					// when popup is found, m_pParentMenu is containing menu
					state.m_pParentMenu = CMenu::FromHandle(hParentMenu);
					break;
				}
			}
		}
	}

	state.m_nIndexMax = pMenu->GetMenuItemCount();
	for (state.m_nIndex = 0; state.m_nIndex < state.m_nIndexMax; state.m_nIndex++) {
		state.m_nID = pMenu->GetMenuItemID(state.m_nIndex);
		if (state.m_nID == 0)
			continue; // menu separator or invalid cmd - ignore it

		ASSERT(state.m_pOther == NULL);
		ASSERT(state.m_pMenu != NULL);
		if (pMenu->GetSubMenu(state.m_nIndex) != NULL) {
			// possibly a popup menu, route to first item of that popup
			state.m_pSubMenu = pMenu->GetSubMenu(state.m_nIndex);
			if (state.m_pSubMenu == NULL ||
				(state.m_nID = state.m_pSubMenu->GetMenuItemID(0)) == 0 ||
				state.m_nID == (UINT)-1)
			{
				continue; // first item of popup can't be routed to
			}
			state.DoUpdate(this, FALSE); // popups are never auto disabled
		}
		else {
			// normal menu item
			// Auto enable/disable if frame window has 'm_bAutoMenuEnable'
			// set and command is _not_ a system command.
			state.m_pSubMenu = NULL;
			state.DoUpdate(this, TRUE);
		}

		// adjust for menu deletions and additions
		UINT nCount = pMenu->GetMenuItemCount();
		if (nCount < state.m_nIndexMax) {
			state.m_nIndex -= (state.m_nIndexMax - nCount);
			while (state.m_nIndex < nCount &&
				pMenu->GetMenuItemID(state.m_nIndex) == state.m_nID)
			{
				state.m_nIndex++;
			}
		}
		state.m_nIndexMax = nCount;
	}
}

void CArticleView::OnActivate(UINT nState, CWnd *pWndOther, BOOL bMinimized) {
	if (InFullScreen)
		ToFullScreenMode();
	else
		ToNormalMode();
}

// commands

void CArticleView::OnItemNext() {
	LOG0(1, "CArticleView::OnItemNext()");

	if (View == NULL) return;

	CMainFrame *frame = (CMainFrame *) AfxGetMainWnd();
	if (View->SiteItem != NULL && View->SiteItem->Type == CSiteItem::VFolder) {
		CWaitCursor wait;

		int oldIdx = View->GetSelectedItem();
		int idx = View->GetSelectedItem();

		BOOL found = FALSE;
		while (!found) {
			if (idx < View->GetItemCount() - 1) idx++;
			else if (Config.WrapAround) idx = 0;
			else idx = oldIdx;

			// we are back on the original site
			if (idx == oldIdx) {
				frame->NoNewMessage();
				break;
			}

			// check
			if (View->SiteItem->FlagMask == MESSAGE_READ_STATE) {
				CFeedItem *fi = View->GetItem(idx);
				if (!fi->IsDeleted() && (fi->IsNew() || fi->IsUnread()))
					found = TRUE;
			}
			else
				found = TRUE;
		}

		if (found) {
			View->OpenItem(idx);
			View->EnsureVisible(idx);

			frame->m_wndBanner.Invalidate();
		}
	}
	else {
		CWaitCursor wait;

		int oldIdx = View->GetSelectedItem();
		int oldSite = Config.ActSiteIdx;

		int site = Config.ActSiteIdx;
		int idx = View->GetSelectedItem();

		BOOL found = FALSE;
		while (!found) {
			if (idx < View->GetItemCount() - 1) {
				idx++;
				if (site == oldSite) {
					// we are back on the original item
					if (idx == oldIdx) break;
				}
			}
			else {
				int t = site;
				site = View->MoveToNextChannel();
				if (t == site) break;
				else idx = 0;
			}

			// check
			if (View->GetItemCount() > 0) {
				if (Config.MoveToUnread) {
					CFeedItem *fi = View->GetItem(idx);
					if (!fi->IsDeleted() && (fi->IsNew() || fi->IsUnread()))
						found = TRUE;
				}
				else
					found = TRUE;
			}
		}

		if (found) {
			View->OpenItem(idx);
			View->EnsureVisible(idx);

			frame->m_wndBanner.Invalidate();

			if (oldSite != site) frame->AddSiteToSave(oldSite);
			// TODO: preload the site with unread items if reading only unread
			frame->PreloadSite(site);
		}
		else {
			// get back to original site and item
			frame->SelectSite(oldSite);
			if (View->GetItemCount() > 0) {
				View->SetSelectedItem(oldIdx);
				View->EnsureVisible(oldIdx);
			}

			frame->NoNewMessage();
		}
	}
}

void CArticleView::OnItemPrev() {
	LOG0(1, "CArticleView::OnItemPrev()");

	if (View == NULL) return;

	CMainFrame *frame = (CMainFrame *) AfxGetMainWnd();
	if (View->SiteItem != NULL && View->SiteItem->Type == CSiteItem::VFolder) {
		CWaitCursor wait;

		int oldIdx = View->GetSelectedItem();
		int idx = View->GetSelectedItem();

		BOOL found = FALSE;
		while (!found) {
			if (idx > 0) idx--;
			else if (Config.WrapAround) idx = View->GetItemCount() - 1;
			else idx = oldIdx;

			// we are back on the original site
			if (idx == oldIdx) {
				frame->NoNewMessage();
				break;
			}

			// check
			if (View->SiteItem->FlagMask == MESSAGE_READ_STATE) {
				CFeedItem *fi = View->GetItem(idx);
				if (!fi->IsDeleted() && (fi->IsNew() || fi->IsUnread()))
					found = TRUE;
			}
			else
				found = TRUE;
		}

		if (found) {
			View->OpenItem(idx);
			View->EnsureVisible(idx);

			frame->m_wndBanner.Invalidate();
		}
	}
	else {
		CWaitCursor wait;

		int oldIdx = View->GetSelectedItem();
		int oldSite = Config.ActSiteIdx;

		int site = Config.ActSiteIdx;
		int idx = View->GetSelectedItem();

		BOOL found = FALSE;
		while (!found) {
			if (idx > 0) {
				idx--;
				if (site == oldSite) {
					// we are back on the original site
					if (idx == oldIdx) break;
				}
			}
			else {
				int t = site;
				site = View->MoveToPrevChannel();
				if (t == site) break;
				else idx = View->GetItemCount() - 1;
			}

			// check
			if (View->GetItemCount() > 0) {
				if (Config.MoveToUnread) {
					CFeedItem *fi = View->GetItem(idx);
					if (!fi->IsDeleted() && (fi->IsNew() || fi->IsUnread()))
						found = TRUE;
				}
				else
					found = TRUE;
			}
		}

		if (found) {
			View->OpenItem(idx);
			View->EnsureVisible(idx);

			frame->m_wndBanner.Invalidate();

			if (oldSite != site) frame->AddSiteToSave(oldSite);
			// TODO: preload the site with unread items if reading only unread
			frame->PreloadSite(site);
		}
		else {
			// get back to original site and item
			frame->SelectSite(oldSite);
			if (View->GetItemCount() > 0) {
				View->SetSelectedItem(oldIdx);
				View->EnsureVisible(oldIdx);
			}
			frame->NoNewMessage();
		}
	}
}

void CArticleView::OnItemFlag() {
	LOG0(1, "CArticleView::OnItemFlag()");

	if (View != NULL) {
		CMainFrame *frame = (CMainFrame *) AfxGetMainWnd();

		int selItem = View->GetSelectedItem();
		if (m_pArticle->IsFlagged()) {
			View->UnflagItem(selItem);
			m_pArticle->SetFlags(0, MESSAGE_FLAG);
			frame->m_wndBanner.SetFlagged(-1);
		}
		else {
			View->FlagItem(selItem);
			m_pArticle->SetFlags(MESSAGE_FLAG, MESSAGE_FLAG);
			frame->m_wndBanner.SetFlagged(FLAG_ICON);
		}
		frame->m_wndBanner.Invalidate();
	}
}

void CArticleView::OnUpdateItemFlag(CCmdUI *pCmdUI) {
	LOG0(5, "CArticleView::OnUpdateItemFlag()");

	pCmdUI->SetCheck(m_pArticle->IsFlagged());
}

void CArticleView::OnRefresh() {
	LOG0(3, "CArticleView::OnRefresh()");

	ShowArticle();
}

void CArticleView::OnItemOpen() {
	LOG0(1, "CArticleView::OnItemOpen()");

	ToNormalMode();
	if (m_strContextMnuUrl.IsEmpty()) OpenOnlineMessage(m_pArticle->Link, m_pArticle->SiteItem);
	else OpenOnlineMessage(m_strContextMnuUrl, m_pArticle->SiteItem);
}


void CArticleView::OnEnclosureOpen() {
	LOG0(1, "CArticleView::OnEnclosureOpen()");

	if (m_pArticle != NULL && m_pArticle->HasEnclosure()) {
		CEnclosureItem *ei = m_pArticle->Enclosures.GetHead();
		ToNormalMode();
		OpenEnclosure(ei->URL);
	}
}

void CArticleView::OnUpdateEnclosureOpen(CCmdUI *pCmdUI) {
	LOG0(5, "CArticleView::OnUpdateEnclosureOpen()");

	pCmdUI->Enable(m_pArticle->HasEnclosure());
}


void CArticleView::OnEnclosureGet() {
	LOG0(1, "CArticleView::OnEnclosureOpen()");

	CArray<CFeedItem *, CFeedItem *> items;
	items.Add(m_pArticle);

	CMainFrame *frame = (CMainFrame *) AfxGetMainWnd();
	frame->m_wndUpdateBar.EnqueueEnclosures(items);
	frame->m_wndUpdateBar.Redraw();
	frame->m_wndUpdateBar.Start();
}

void CArticleView::OnUpdateEnclosureGet(CCmdUI *pCmdUI) {
	if (m_pArticle != NULL && m_pArticle->HasEnclosure()) {
		CEnclosureItem *ei = m_pArticle->Enclosures.GetHead();
		pCmdUI->Enable(!IsEnclosureCached(ei->URL));
	}
	else
		pCmdUI->Enable(FALSE);
}

void CArticleView::OnEnclosureDelete() {
	LOG0(1, "CArticleView::OnEnclosureOpen()");

	CArray<CFeedItem *, CFeedItem *> items;
	items.Add(m_pArticle);
	ClearEnclosures(items);

	CMainFrame *frame = (CMainFrame *) AfxGetMainWnd();
	frame->SetupEnclosureBar(m_pArticle);
}

void CArticleView::OnUpdateEnclosureDelete(CCmdUI *pCmdUI) {
	if (m_pArticle->HasEnclosure()) {
		CEnclosureItem *ei = m_pArticle->Enclosures.GetHead();
		pCmdUI->Enable(IsEnclosureCached(ei->URL));
	}
	else
		pCmdUI->Enable(FALSE);
}

void CArticleView::OnCopyUrl() {
	LOG0(1, "CArticleView::OnCopyUrl()");

	CString link;
	if (m_strContextMnuUrl.IsEmpty() && m_pArticle != NULL) link = m_pArticle->Link;
	else link = m_strContextMnuUrl;

	CopyTextToClipboard(GetSafeHwnd(), link);
}

void CArticleView::OnCopy() {
	LOG0(1, "CArticleView::OnCopy()");

	LPSTREAM stream = 0;		// give us the output stream here
	DWORD rsd = 0;				// required, can be checked with SUCCEEDED?...
	CopySelectionToNewIStream(&rsd, &stream);
	if (stream) {
		// got it
		STATSTG stat = { 0 };
		stream->Stat(&stat, 0); // probably check for the S_OK code...

		if (LPBYTE buf = (LPBYTE) LocalAlloc(LHND, (UINT) stat.cbSize.QuadPart + 2)) {
			ULONG ulNumChars;
			// read whole
			if (SUCCEEDED(stream->Read(buf, (ULONG) stat.cbSize.QuadPart, &ulNumChars)) &&
				ulNumChars == stat.cbSize.QuadPart)
			{
				CString strSelectedText((LPCWSTR) buf); // our text here!
				CopyTextToClipboard(GetSafeHwnd(), strSelectedText);
			}

			LocalFree(buf);
		}
		stream->Release();
	}
}

void CArticleView::OnUpdateCopy(CCmdUI *pCmdUI) {
	BOOL isTextSelected = (BOOL) IsSelection();
	pCmdUI->Enable(isTextSelected);
}

void CArticleView::OnLinkOpen() {
	LOG0(1, "CArticleView::OnLinkOpen()");

	ToNormalMode();
	OpenOnlineMessage(m_strContextMnuUrl, m_pArticle->SiteItem);
}

void CArticleView::OnLinkDownload() {
	LOG0(1, "CArticleView::OnLinkDownload()");

	CMainFrame *frame = (CMainFrame *) AfxGetMainWnd();
	frame->m_wndUpdateBar.EnqueueItem(m_strContextMnuUrl, FILE_TYPE_HTML);
	frame->m_wndUpdateBar.Redraw();
	frame->m_wndUpdateBar.Start();
}

void CArticleView::OnBookmarkLink(UINT nID) {
	ToNormalMode();

	// link to bookmark
	CString link;
	if (m_strContextMnuUrl.IsEmpty() && m_pArticle != NULL) link = m_pArticle->Link;
	else link = m_strContextMnuUrl;

	int idx = nID - ID_SOCIAL_BOOKMARK_BASE;
	CSocialBookmarkSite *sbs = Config.SocialBookmarkSites[idx];
	CString url = sbs->Url;
	if (url.Replace(_T("[%URL%]"), UrlEncode(link)) != 1) {
		Error(IDS_BAD_URL_FMT_SBS);
		return;
	}

	// if the [%TITLE%] is not present, this will do nothing, which is ok
	if (m_strContextMenuLinkName.GetLength() > 0)
		url.Replace(_T("[%TITLE%]"), UrlEncode(m_pArticle->Title + _T(" - ") + m_strContextMenuLinkName));
	else
		url.Replace(_T("[%TITLE%]"), UrlEncode(m_pArticle->Title));

	// open browser
	OpenUrlExt(url);

	m_strContextMenuLinkName.Empty();
}

void CArticleView::OnViewImage() {
	CString fileName = GetCacheFile(FILE_TYPE_IMAGE, Config.CacheLocation, m_strContextMnuUrl);
	if (FileExists(fileName)) ShellOpenFile(fileName); 		// file is cached -> open it with a local program
	else OpenUrlExt(m_strContextMnuUrl);					// file not cached -> use web browser to open it
}

void CArticleView::OnCopyImageLocation() {
	CopyTextToClipboard(GetSafeHwnd(), m_strContextMnuUrl);
}

void CArticleView::OnSendByEmail() {
	ToNormalMode();

	CString link;
	if (m_strContextMnuUrl.IsEmpty() && m_pArticle != NULL) link = m_pArticle->Link;
	else link = m_strContextMnuUrl;

	SendByEmail(link);
}

void CArticleView::ToFullScreenMode() {
	if (!InFullScreen) {
		CMainFrame *frame = (CMainFrame *) AfxGetMainWnd();
		HWND hWnd = frame->GetSafeHwnd();

		SHSipPreference(hWnd, SIP_FORCEDOWN);				// hide SIP
		SetForegroundWindow();
		SHFullScreen(hWnd, SHFS_HIDETASKBAR | SHFS_HIDESTARTICON | SHFS_HIDESIPBUTTON);
		::ShowWindow(frame->m_hwndCmdBar, SW_HIDE);


		HDC hDC = ::GetDC(hWnd);
		::MoveWindow(hWnd, 0, 0, GetDeviceCaps(hDC, HORZRES), GetDeviceCaps(hDC, VERTRES), TRUE);
		::ReleaseDC(hWnd, hDC);

		InFullScreen = TRUE;
	}
}

void CArticleView::ToNormalMode() {
	if (InFullScreen) {
		CMainFrame *frame = (CMainFrame *) AfxGetMainWnd();
		HWND hWnd = frame->GetSafeHwnd();

		SHFullScreen(hWnd, SHFS_SHOWTASKBAR | SHFS_SHOWSTARTICON | SHFS_SHOWSIPBUTTON);
		::ShowWindow(frame->m_hwndCmdBar, SW_SHOW);

#define MENU_HEIGHT 	26
		RECT rc;
		::GetWindowRect(hWnd, &rc);
		::MoveWindow(hWnd, rc.left, rc.top + SCALEY(MENU_HEIGHT), rc.right, rc.bottom - (2 * SCALEY(MENU_HEIGHT)), TRUE);

		InFullScreen = FALSE;
	}
}

void CArticleView::OnFullscreen() {
	if (InFullScreen) ToNormalMode();
	else ToFullScreenMode();
}

void CArticleView::OnUpdateFullscreen(CCmdUI *pCmdUI) {
	pCmdUI->SetCheck(InFullScreen);
}